JP2797454B2 - Disc playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The disk reproducing apparatus of the present invention will be described in detail according to the following items.

A. Industrial application fields B. Summary of the invention C. Prior art D. Problems to be solved by the invention E. Means to solve the problems F. Embodiment a. Disk stocker [FIGS. 1 to 7 , FIG. 12, FIG.
18 to 20] a-1. Stock shelf [FIGS. 1 to 7, FIG. 12, FIG.
Figures to FIG. 20] a-2. Extrusion arm [FIGS. 2 to 5, FIG. 19, FIG.
Figure] a-2-a. Extrusion arm for large size disc a-2-b. Extrusion arm for small size disc a-2-c. Operation a-3. Disc holding spring [FIGS. 2 and 3] , FIG. 5,
FIGS. 19, 20] a-4. Stock detection lever [FIG. 2, FIG. 3, FIG.
Figures, 19 and 20] b. Reproducing unit [FIGS. 1, 3, 7, and 18] c. Disc inlet / outlet and its opening / closing mechanism [FIGS. 1 to 3]
FIG. 7, FIG. 7 to FIG. 9, FIG. 15] c-1. Disc entrance / exit [FIG. 2, FIG. 7, FIG.
Fig. 15] c-2. Opening / closing mechanism [Fig. 2, Fig. 7, Fig. 8, Fig. 15] c-3. Open / close detection switch [Fig. 7, Fig. 8] d. FIG. 1, FIG. 9, FIG. 10, FIG.
15 and 18] e. Cam slider and its moving mechanism etc. [FIGS. 1 to 3
FIG. 7, FIG. 7 to FIG. 12, FIG. 15, FIG. 16, FIG. 18] e-1. Cam slider [FIGS. 1 to 3, FIG. 7 to FIG. 12, FIG. Fig. 16, Fig. 18] e-2. Movement of cam slider and elevator [Fig.
Figure] e-3. Relationship between cam slider and elevator position with disk storage chamber etc. [FIGS. 1, 7, 18] e-4. Position detecting means such as cam slider [FIGS. 3, FIG. 9 to FIG. 11] f. Disk transport unit [FIG. 1, FIG. 2, FIG. 7, FIG.
FIGS. 10, 13 to 20] f-1. Elevator [FIG. 1, FIG. 2, FIG. 7, FIG.
Fig. 10, Fig. 16, Fig. 16, Fig. 18] f-2. Rotating chassis [Fig. 1, Fig. 2, Fig. 9, Fig. 10
Figures, FIGS. 13 to 18] f-3. Insertion Guide Plate [FIGS. 1, 9, 13 to 15]
Drawing, FIG. 18] f-4. Retraction roller [FIG. 1, FIG. 2, FIG. 9, FIG. 13 to FIG. 15, FIG. 18 to FIG. 20] f-5. FIG. 2, FIG. 10, FIG. 16, FIG. 16] f-5-a. Structure [FIG. 1, FIG. 2, FIG.
Figure] f-5-b. Switching of drive system [Fig. 16] f-5-c. Rotation of rotating chassis and draw-in roller [Fig. 2, Fig. 16] f-6. Delivery of optical disk to disk transport unit [No.
18 (A), 18 (B)] f-7. Chucking mechanism (FIGS. 1, 13, and 18) f-8. Disk positioning mechanism [FIGS. 9, 13 to 13
FIG. 15, FIG. 17] f-8-a. Structure [FIG. 9, FIG. 13 to FIG.
Figure] f-8-b. Operation [Fig. 17] f-9. Insertion detection means [Fig. 9, Fig. 14, Fig. 15, Fig. 17
Figure] f-10. Pushing arm pressing lever, disc presence / absence sensor [Fig. 2, Fig. 10, Fig. 19, Fig. 20] f-10-a. Pushing arm pressing lever f-10-b. Disc presence / absence sensor g. Disk loading / unloading mechanism [Fig. 2, Fig. 3, Fig. 12, Fig. 19
Figure, Figure 20] g-1. Delivery arm, return arm [Figure 2, Figure 3
Fig. 12, Fig. 19, Fig. 20] g-2. Swing gear, detection switch, etc. [Fig. 12] g-3. Operation [Fig. 12] h. Operation [Fig. 1, Fig. 3 FIG. 7, FIG. 9, FIG. 15, FIG.
16 (B), FIG. 16 (C), FIG. 18 (B), FIG. 18 (C), FIG. 19, FIG. 20] h-1. Storage of Optical Disk in Disk Stocker [FIG. , FIG. 7, FIG. 15, FIG. 16 (B), FIG. 16 (C),
FIG. 20] h-2. Removal of optical disk from disk stocker (FIG. 18 (B), FIG. 19) h-3. Chucking and reproduction (FIG. 3, FIG. 9, FIG. 18)
Fig. (C)] h-4. Other operations G. Effects of the invention (A. Industrial application field) The present invention relates to a novel disc reproducing apparatus. More specifically, the present invention relates to a so-called auto-changer type disk reproducing apparatus for taking out an arbitrary one of a plurality of recording medium disks stored in a disk storing section inside a housing to a reproducing section and performing recording and reproduction. The storage of the recording medium disk in the storage unit and the removal and replacement of the stored storage medium disk can be performed without removing the disk storage unit from the housing, and when the disk storage room of the disk storage unit is completely occupied. However, it is an object of the present invention to provide a novel disc reproducing apparatus capable of reproducing still another recording medium disc.

(B. Summary of the Invention) The disc reproducing apparatus of the present invention includes a disc transport unit having a disc holding unit for holding a recording medium disc, and a disc transport unit disposed inside a housing and capable of storing a plurality of recording medium discs. It is possible to selectively move the recording medium disk between a position where the recording medium disk is inserted and removed between the opposing position and the reproducing unit, and a position where the recording medium disk is inserted and removed between the outside of the housing, and thereby. In addition, the storage medium disk can be stored in the disk storage section and the stored storage medium disk can be removed or replaced without removing the disk storage section from the housing, and the disk storage section of the disk storage section is completely occupied. In this case, it is possible to reproduce another recording medium disk even when the recording medium is in the recording mode.

(C. Prior Art) Today, recording medium disks include optical disks, magnetic disks, and magneto-optical disks, and there are various types of disk reproducing devices using such recording medium disks. One of them is a so-called auto-changer system, that is, a reproducing unit for reproducing an arbitrary one of a plurality of recording medium disks stored in a disk storage unit (hereinafter, referred to as a “disk stocker”) inside a housing. There is a method of taking out and recording and reproducing.

And in this type of conventional disk reproducing apparatus, a disk stocker having a plurality of disk storage chambers can be detachably mounted inside the housing,
A disk transport means is provided for moving between the individual disk storage chambers of the mounted disk stocker and the respective positions corresponding to the respective disk storage units and the reproducing unit. When the reproduction is completed, the disc is returned to the disc stocker by the disc conveying means.

(D. Problems to be Solved by the Invention) Therefore, in this type of conventional disk reproducing apparatus, a recording medium disk housed in a disk stocker is extracted, replaced with another recording medium disk, or added. When storing, that is, storing a recording medium disk in an empty disk storage room,
Even if only one recording medium disk is to be removed, replaced, or additionally stored, the disk stocker must be removed from the inside of the housing and the storage medium disk must be removed each time, and then the disk stocker can be mounted inside the housing. It is necessary to carry out the work of re-reading, and unless the recording medium disk is stored in the disk stocker, the recording medium disk cannot be reproduced, etc., so take out the disk stocker and remount it Has to be performed frequently and unexpectedly, and there is a problem that handling is unexpectedly troublesome.

(E. Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a disk reproducing apparatus which has a disk entrance provided in a housing for inserting and removing a single recording medium disk. And a disk storage portion that is arranged inside the housing and that can freely store a plurality of recording medium disks inserted from the disk entrance, and a signal that is detachably mounted on the recording medium disk and recorded on the recording medium disk. And a disk transport means for selectively transporting the recording medium disk across a disk entrance, a disk storage portion, and the reproducing portion, the disk having a disk holding portion for holding the recording medium disk in a removable manner. The recording medium disk is transported between the disk entrance and the disk transport means in a direction substantially orthogonal to the transport direction. What is obtained by such passing of the recording medium disk is performed between the disk carrying means and the disc storage portion.

Therefore, in the disk reproducing apparatus of the present invention, the recording medium disk stored in the disk storage section can be transported to the reproduction section, and the recording medium disk not stored in the disk storage section can be moved from outside the housing. Since it is possible to transport the recording medium disk stored in the disk storage unit to the outside of the housing, it is possible to transport the recording medium disk stored in the disk storage unit, remove or replace the storage medium disk stored in the disk storage unit, or transfer the disk to the disk storage unit. Additional storage and the like can be performed without removing the disk storage unit from the housing, and even when all the disk storage rooms of the disk storage unit are occupied, it is possible to reproduce still another recording medium disk,
Therefore, the handling can be made extremely easy.

(F. Embodiment) Hereinafter, details of the disc reproducing apparatus of the present invention will be described with reference to the illustrated embodiment.

In the illustrated embodiment, the disc reproducing apparatus of the present invention is applied to an optical disc player 1 in which two kinds of optical discs having different sizes can be stored in the disc storage section.

(A. Disk stocker) [FIGS. 1 to 7, FIG.
FIG. 18, FIG. 18 to FIG. 20] 2 is an optical disc 3 having a diameter of 12 cm
Say "Large size disc". ) And an optical disk 4 having a diameter of 8 cm (hereinafter, referred to as a “small size disk”). The disk stocker is capable of being stored alternately and freely in a hierarchical manner. .. Are composed of five shelf blocks 5, 5,..., Which are rotatably supported and are composed of two types of large and small extrusion arms, etc., and are composed of a large disk 3 and a small disk 4 at the maximum. 5 each
A total of ten optical disks can be stored (in FIG. 1, ten optical disks are shown).

Each of the five shelf blocks 5, 5,... Has the same configuration.

(A-1. Stock shelf) [FIGS. 1 to 7, FIG. 12, FIG.
18 to 20] 6 is a stock shelf whose parts are integrally formed of synthetic resin.

Reference numerals 7 and 8 denote an upper plate and a lower plate of the stock shelf 6, respectively, in the front-rear direction (the front side in FIG. 1 is the front side, the direction toward the paper back is the rear side, and the direction toward the left side in FIG. In the following description, the direction toward the left side and the right side is the right side, the direction toward the upper side is the upper side, and the direction toward the lower side is the lower side. 3, a relatively large notch 7a having a substantially U-shape which is formed in the left-right direction and slightly longer than the diameter in the left-right direction.
8a are formed, and right ends of both front and rear edges are curved in a convex arc shape. And, these upper plate 7 and lower plate 8
Are opposed to each other in the vertical direction with a gap substantially the same as the thickness of the large-sized disk 3 and their side edges are connected by side walls 9, whereby the upper plate 7 and the lower plate 8 are connected.
A thin space 10 (hereinafter referred to as a “large-size disk storage room”) having a substantially U-shaped horizontal cross-section and opening at both left and right ends.
Say ) Is formed.

The large-sized disks 3 are stored one by one in such large-sized disk storage rooms 10, 10,.
As shown by the solid line in FIG.
Of the side wall 9, 9 at least one of the side walls 9, 9 is in contact with the inner surface of the arcuate portion.

Also, on the lower surface 8b of the lower plate 8, two partitioning ridges 11, 11 having a height substantially equal to the thickness of the small size disk 4 (this thickness is the same as the thickness of the large size disk 3) are formed. The partitioning ridges 11, 11 are arranged on both front and rear sides of the notch 8a, and the left and right sides thereof are apart from each other by a distance substantially the same size as the diameter of the small size disk 4 except for a right end thereof. And the right end is curved in an arc shape toward the notch 8a.

Further, on the upper surface 7b of the upper plate 7, alignment ridges 12, 12 having the same height as the partition ridges 11, 11 are formed, and these alignment ridges 12, 12 are viewed from above. And partition ridge 1
It is formed so as to be in contact with the outer surface of each of 1 and 11 separately.

13 and 13 are connecting ridges formed at the front and rear ends of the left end of the upper surface 7b of the upper plate 7, and 14 and 14 respectively correspond to the connecting ridges 13 and 13 of the lower surface 8b of the lower plate 8. The connecting pieces (see FIG. 6) are formed at the positions indicated by the arrows, and the connecting pieces 14 and 14 are formed to have a substantially L-shape when viewed from the front-back direction. 15, 15
Is a cylindrical spacer formed at the right end of the front and rear sides of the stock shelf 6 so as to partially protrude laterally, and the upper part thereof protrudes slightly above the upper surface 7b of the upper plate 7.

And these five stock shelves 6, 6, ...
Is connected to the lower part of the connecting pieces 14 and 14 of one stock shelf 6 by another one.
Holes 13 formed in the connecting ridges 13 of the two stock shelves 6
a, 13a, and by abutting the cylindrical spacers 15, 15 of the other stock shelf 6 with the cylindrical spacers 15, 15 in the axial direction, they are sequentially overlapped with the other stock shelf 6. , The connecting rods, for example, bolts 16, 16 are respectively inserted through the front cylindrical spacers 15, 15,... And the rear cylindrical spacers 15, 15,. The unit is integrated by tightening a nut (not shown) to the unit.

It should be noted that two stock shelves 6 and 6 superimposed on each other
Alignment with the partitioning ridge of one stock shelf 6
The alignment ridges 12, 12 of the other stock shelf 6 contact each other from the outside to the 11, 11, and the cylindrical spacers 15, 15, ...
Are made coaxially aligned in the vertical direction by the connecting rods 16,16.

Are fixed to the right half of the upper surface 18 of the main chassis 17 which has a substantially rectangular shape that is long in the left-right direction.

The stock shelves 6, 6,... Have a spacing between two adjacent ones, which is approximately the same height as the height of the partitioning ridges 11, 11, in other words, the thickness of the small size disk 4. Are connected in a hierarchical manner so that the horizontal cross-sectional shape between the two adjacent stock shelves 6 and 6 and between the lowermost stock shelf 6 and the upper surface 18 of the main chassis 17 is substantially U-shaped. And a thin space 19, 19 ...
· (Hereinafter referred to as “small size disk storage room”) are formed in total of five.

The small-size disks 4 are stored one by one in such small-size disk storage rooms 19, 19,.
As shown by the solid line in FIG.
Is formed until the outer peripheral edge of the partitioning abutment contacts the inner surface of at least one of the arc-shaped right ends of the partitioning ridges 11, 11.

Thus, the disk stocker 2 alternately arranges the disks for the large-sized disks and the disks for the small-sized disks, so that a total of ten disk storage chambers 10, 10,.
9,... Are formed.

Note that the left ends of the large-sized disk 3 that has been stored in the large-size disk storage room 10 and the small-sized disk 4 that has been stored in the small-size disk storage room 19 are substantially aligned.

Also, in the following description, the disk storage chambers 10, 10,
.. And 19, 19,... By specifying their positions in the vertical direction, the uppermost disk storage room 10 is referred to as a “first-floor disk storage room”. , "2nd floor disk storage room", "3rd floor disk storage room", ... "10th floor disk storage room".

(A-2. Extrusion arm) [FIGS. 2 to 5, FIG. 19, FIG.
FIG. 20] 20 and 21 are pushing arms for pushing the optical discs 3 and 4 stored in the disc storage chamber toward a disc transport section described later, and one pushing arm 20 is for a large-sized disc 3. Yes, the other push-out arm 21 is for the small size disc 4.

(A-2-a. Extrusion Arm for Large Size Disc) The extrusion arm 20 for the large size disc 3 has a plate-like long arm 20a curved in a substantially arc shape, and extends from the front end of the long arm 20a. A short arm 20b positioned on a straight line passing through both ends of the substantially long arm 20a, a small spring hook 20c protruding from a position near the front end of a side edge farther from the center of the arc of the long arm 20a, and a short arm 20b. A pressing portion 20d protruding downward from a position near the front end of the left edge is integrally formed, and a connecting portion between the long arm 20a and the short arm 20b is connected to the upper plate 7 of the stock shelf 6.
The upper surface 7b is supported by a small support projection 7c protruding at a position substantially obliquely forward and closer to the notch 7a than the right side, and is rotatably supported in the horizontal direction.
The portion on the tip side from 0d is located so as to protrude forward from the stock shelf 6.

A small cylindrical push pin 22 is fixed to the lower end of the rotating end of the long arm 20a, and a small cylindrical pressed pin 23 is fixed to the lower end of the rotating end of the short arm 20b, respectively.
The lower part of the push-out pin 22 is inserted through an arc-shaped notch 7d formed in the rear right half of the upper plate 7 of the stock shelf 6 and protrudes into the large-size disk storage chamber 10 (see FIG. 4).

Reference numeral 24 denotes a toggle spring having a substantially scissor-shaped spring. The tip of one arm 24a is locked by a spring hook 20c of the push-out arm 20, and the tip of the other arm 24b is the right end of the upper plate 7. It is locked in a small hole 7e formed at a position slightly diagonally rearward to the right from the support protrusion 7c, and the resilient force of the toggle spring 24 causes the push arm 20 to rotate clockwise or counterclockwise when viewed from above. The clockwise rotation is energized. That is,
The extruding arm 20 has a boundary point at an intermediate position where the spring hooking piece 20c is located on a straight line connecting the tip end of the other arm 24b of the toggle spring 24 and the support projection 7c, and comes to the counterclockwise side therefrom. When it is, the turning power in the counterclockwise direction is energized, and when it is on the clockwise side from the boundary point, the turning power in the clockwise direction is energized.

As shown by a two-dot chain line in FIG. 19 (A), such a pushing arm 20 has a position where the pushing pin 22 abuts on the left end of the cut groove 7d (hereinafter referred to as a “pushing completion position”). At the position where the pressing pin 22 comes into contact with the right end of the cut groove 7d as shown by the solid line in FIG. When the push arm 20 is at the storage completed position, the lower part of the push pin 22 is positioned at the lower end of the large-size disk storage chamber 10. When the pushing arm 20 comes to the pushing-out completion position, the pushing pin 22 is moved to the large size. It is located at a substantially middle position in the left and right direction of the disk storage That.

(A-2-b. Extrusion Arm for Small Size Disc) The extrusion arm 21 for the small size disc 4 has a long arm 21a having a relatively gently curved plate shape and a short arm connected to the front end of the long arm 21a. A spring hook 21c protruding leftward from the front end of the arm 21b and the long arm 21a and a pressing portion 21d raised from a position near the front end of the short arm 21b are integrally formed, and the front end of the long arm 21a is formed. Is supported by a small support protrusion 8c protruding from the lower end 8b of the lower plate 8 of the stock shelf 6 at a position closer to the right end of the notch 8a than the front side so as to be rotatable in the horizontal direction. At least a portion of the arm 21b on the distal end side from the pressing portion 21d is positioned so as to protrude forward from the stock shelf 6.

A small cylindrical extrusion pin 25 is fixed on the upper surface of the rotating end of the long arm 21a, and a pin 26 to be pushed is fixed on the upper surface of the rotating end of the short arm 21b. Since the pivotal end of the long arm 21a is located at a position slightly lower than the remaining portion, the pushing pin 25 is in the same plane as the partitioning ridges 11, 11 formed on the lower surface of the stock shelf 6. At the opposite height,
Therefore, in a state where the stock shelves 6, 6, ... are sequentially stacked, the push pins 25, 25, ... are at the same height as the small-sized disk storage chambers 19, 19, .... (See FIG. 4).

Reference numeral 27 denotes a toggle spring having a function similar to that of the toggle spring 24. The tip of one arm 27a is locked by a spring hook 21c of the push-out arm 21, and the tip of the other arm 27b is
Of the front side of the support projection 8c, and is locked in a small hole 8d formed at a position substantially obliquely forward to the left from the support projection 8c. A clockwise or counterclockwise turning force is energized. That is, the pushing arm 21 has its spring hook 21c
Is located on a straight line connecting the tip of the other arm 27b of the toggle spring 27 and the support protrusion 28c as a boundary point, and when the counterclockwise direction is more than the boundary point, the rotation in the counterclockwise direction is performed. When the power is coming clockwise from the boundary point, the clockwise turning power is energized.

As shown by a two-dot chain line in FIG. 19 (B), such a pushing arm 21 has a front partition formed on the lower surface 8b of the lower plate 8 such that the position of the long arm 21a near the rotation fulcrum is formed. Ridge 11
When it reaches the position where it abuts on the right end of the (hereinafter, referred to as the "extrusion completion position"), it is prevented from further turning in the counterclockwise direction, and as shown by the solid line in FIG. When the pressing portion 21d comes to a position where the pressing portion 21d comes into contact with a substantially middle portion of the front edge of the stock shelf 6 in the left-right direction (hereinafter, referred to as a “storage completion position”), it is further rotated clockwise. When the push arm 25 is at the storage completed position, the push pin 25 is approached or slightly obliquely to the outer edge of the small-sized disk 4 stored in the small-size disk storage chamber 19 from the slightly diagonally rearward position. When the pushing arm 21 reaches the pushing completion position, the pushing pin 25 is located at a substantially middle position in the left-right direction of the small-sized disk storage chamber 19.

(A-2-c. Operation) Then, the pushing arms 20, 20, ... and 21, 21, ...
··· When the optical disk is inserted into the disk storage chamber from the state where it is at the extrusion completion position, the push pins 22, 22, ..., 25, 25, ... 4 is pushed to the substantially right, so that it is moved toward the storage completed position and toggle springs 24, 24,.
.., 27, 27,... Are held in that position by the resilient force, and from this state, the pressed pins 23, 23,.
, 26, 26,... Are pushed substantially rightward to at least a point beyond the boundary point to the extrusion completion position side (this pressing is performed by an extrusion arm pressing lever described later). The optical disk is moved toward the extrusion completion position, whereby the optical disk is pushed out from the disk storage chamber approximately one-third or approximately half to the left, and the optical disk itself is held at the extrusion completion position.

.. And 21, 21,... Are all located at the extrusion completion position at least when the assembly of the optical disc player 1 is completed.

By the way, the large-size disk storage rooms 10, 10,... And the small-size disk storage rooms 19, 19,. Two large disk storage rooms adjacent to each other
In the space between 10 and 10 is the small-sized disk storage room 19
A so-called dead space portion is generated outside which is not used for storing the disk.

However, the pushing arms 20, 20, ... and 21, 21, ...
Are supported on the stock shelves 6, 6,... As described above, and when these stock shelves 6, 6,. Are arranged one by one.

The two push arms 20 and 21 located in the same space have slightly different positions in the vertical direction, so that even if there is a part that partially overlaps, they do not hinder each other's movement.

Thus, the extruding arms 20, 20, ... and 21, 21, ...
.. is arranged by using a portion of the space of the disk stocker 2 that is not used for storing a disk,
The planar shape of the disk stocker 2 can be suppressed to the minimum size necessary for storing the disk.

(A-3. Disk holding spring) [FIG. 2, FIG. 3, FIG.
FIG. 19, FIG. 20] is a disk holding spring. The disk holding spring 28
A mounting portion 28a fixed to the rear side of the lower surface 8b of the lower plate 8 of the stock shelf 6, and a position extending along the rear surface of the stock shelf 6 from the rear edge of the mounting portion 28a to the left. The rear elastic piece 28b and the front elastic piece 28c positioned to extend leftward from the front edge of the mounting portion 28a are integrally formed,
Pressing portions 28d and 28e are formed in a substantially middle portion of the elastic pieces 28b and 28c so as to form a substantially C-shape forward, and the pressing portion 28d of the rear elastic piece 28b is The distal end portion of the pressing portion 28e of the front elastic piece 28c is positioned so as to protrude into the large-sized disk storage chamber 10 by being disposed in the cutout portion 9a formed in the intermediate portion of the rear side wall 9. Is positioned so as to protrude into the small-size disk storage chamber 19 through a break 11a formed in the rear partitioning ridge 11.

When the large-size disk 3 is stored in the large-size disk storage room 10 to the storage completion position, the holding portion 28d is located at a position slightly to the left of the outer peripheral edge of the large-size disk 3 facing directly behind. Similarly, when the small-sized disk 4 is stored in the small-sized disk storage chamber 19 up to the storage completion position, the outer peripheral edge of the small-sized disk 4 is slightly smaller than a portion facing directly behind. The pressing portion 28e is relatively resiliently contacted to a position closer to the left, so that the optical disks 3, 4 which have been stored in the disk storage room are not easily ejected from the disk storage room. Is done.

Since the optical disks 3 and 4 are stored in the disk storage rooms 10 and 19 in such a state, the disk storage rooms 10 and 19
When the disk is ejected from the disk and when it is stored in the disk storage chambers 10, 19, the elastic piece 28b or 28c is moved while being slightly pressed backward in the middle thereof.

(A-4. Stock detection lever) [FIG. 2, FIG. 3, FIG.
FIG. 19, FIG. 20, FIG. 20] Reference numeral 29 denotes a stock detection lever for detecting whether or not the optical disk 3 or 4 is stored in the disk storage chamber 10 or 19 by a detection means provided in an elevator described later. There is a narrow, long plate in the left-right direction, and its left end 29
The part near a is bent in a substantially crank shape when viewed from above,
A stopper projection 29b is formed on the front side surface at a position near the right end.

The protruding pieces 30, 30,... Protruding forward from a portion near the left end of the front side surface of the stock shelves 6, 6,.
Have small insertion holes 30a, 30a,.
Are connected in a vertical direction so that the insertion holes 30a, 30
Notches 30b, 30b, ... that have the same hole shape as a, ...
Are also formed on the protruding portions 31, 31,... Protruding forward from a substantially middle portion in the front-rear direction of the front side surfaces of the stock shelves 6, 6,. , 6,
Are connected to each other so that the insertion holes 30a, 30a,
, And notch portions 30b, 30b,... Are respectively formed with corresponding engagement grooves 31a, 31a,..., And the stock detection levers 29, 29,. Insertion hole 30a,
30a,... Or notches 30b, 30b,.
a,... are slidably engaged.

32 are coil springs which are externally fitted to the left ends of the stock detection levers 29, 29,. The middle part of the part to be performed and the protruding pieces 30, 30, ...
Has been compressed between. In addition, this coil spring 3
The spring force of 2, 32, ... is the toggle spring 24, 24, ...
・ And the resilience of 27, 27,...

Therefore, the stock detection levers 29, 29,... Are constantly biased to the right by the elastic force of the coil springs 32, 32,. If not, as shown in FIG.
are held at positions where the b, 29b,... abut on the protruding portions 31, 31,.

And such stock detection levers 29, 29, ...
・ Pressing portions 20d, 20d of the pushing arms 20, 20,...
... or the pressing portion 21 of the pushing arms 21, 21, ...
d, 21d, ... are respectively located at the same height, and when the pressing arms 20, 20, ..., 21, 21, ... move from the extrusion completion position to the storage completion position, The pressing part 20
.. or 21d, 21d,... abut on the right end of the stock detection levers 29, 29,... and press it toward the left. Two
Are moved to the storage position shown in FIG. 19, that is, a position slightly leftward from the non-storage position.

Thus, the stock detection levers 29, 29,... Correspond to the corresponding push arms 20, 20,.
While the is in the storage completed position, the coil springs 32, 3
When the extruding arms 20, 20,... Or 21, 21,... Move to the extrusion completion position, the coil springs 32 are held. , 32,
Are moved to the non-storage position by the resilience of.

(B. Reproducing section) [FIGS. 1, 3, 7, and 18] Reference numeral 33 denotes a reproducing section for reproducing signals recorded on the optical disk 3 or 4, and the upper surface 18 of the main chassis 17
Is provided in the left half of the.

Reference numeral 34 denotes a turntable on which the central portion of the optical disc 3 or 4 is detachably mounted, and is fixed to the rotating shaft 35a of the spindle motor 35. 34a is a centering guide projecting from the center of the upper surface of the turntable.

The turntable 34 has an upper surface slightly lower than the lowermost 10th-floor disk storage chamber 19 among the ten disk storage chambers 10, 10,... And 19, 19,. It is provided as follows.

Reference numeral 36 denotes an optical pickup, which is relatively opposed to the optical disk 3 or 4 mounted on the turntable 34 from below, and is moved in the radial direction of the optical disk 3 or 4 by a moving means (not shown). .

(C. Disc entrance / exit mechanism and its opening / closing mechanism, etc.) [FIGS. 1 to 3, FIGS. 7 to 9, and FIG. 15] 37 and 38 are separately provided on the main chassis 17 from its front edge and rear edge. A wall-shaped chassis (not shown in FIGS. 1 and 8) fixed so as to stand up, has a substantially rectangular plate shape that is long in the left-right direction when viewed from the front-rear direction, and has a front wall shape. Disk stocker 2 out of chassis 37
An elongated hole 37a elongated in the left-right direction at the upper end of the left part
(See FIG. 2).

(C-1. Disc entrance / exit) [FIG. 2, FIG. 7, FIG.
FIG. 15] Reference numeral 39 denotes an entrance / exit frame, which has a plate shape elongated in the left-right direction, and has an opening 39a which is elongated in the left-right direction and slightly longer than the diameter of the large-sized disc 3 at the center in the width direction. The opening edge portion of the opening portion 39a projecting rearward is fixed to the front surface of the wall-shaped chassis 37 in a state of being fitted into an elongated hole 37a formed in the front wall-shaped chassis 37.

Numeral 40 denotes an outer casing of the optical disc player 1, which has a front panel 41 formed with an elongated opening 41a in the left-right direction, and an opening 39a of the entrance frame 39 is opposed to the opening 41a from the inner side. The openings 41a and 39a allow the outer casing of the optical disc 3 or 4 to be moved to a disc transport section described later.
40 Disc entry and exit for insertion and removal from outside
42 are configured.

The disk entrance 42 is provided at the same height as the disk storage room 10 on the first floor of the disk stocker 2.

(C-2. Opening / closing mechanism) [FIG. 2, FIG. 7, FIG. 8, FIG.
FIG. 43 is a shutter for opening and closing the disk entrance 42, and has a width slightly wider than the width of the disk entrance 42,
It has an elongated plate shape in the left-right direction, and its left and right ends are slidably engaged with engagement portions 39b protruding from the left and right ends of the doorway frame 39 in the up-down direction. The front panel 41 and the front panel 41 are arranged so as to be movable in the vertical direction, and have substantially oval connecting long holes 43a, 43a (see FIG. 8) formed at the lower ends of both left and right ends thereof. .

Reference numeral 44 denotes an opening / closing slider (see FIG. 8) which is also elongated in the left-right direction and is disposed in a thin space between the lower portion of the entrance / exit frame 39 and the wall-shaped chassis 37. The open / close slider 44 has the two guided elongated holes 44a and 44a.
Guide pins 45, 45 protruding forward from the wall-shaped chassis 37 on the 4a are slidably engaged, so that the guide pins 45, 45 are slidably supported in a predetermined range in the left and right direction, and a tension spring is provided. The moving force is constantly urged rightward by the pulling force of 46, and the control long holes 44b, 44b are formed at the left and right ends thereof, and are inclined to the left, and further, the left end of the lower edge thereof The pressed portion 44c, which has a substantially U-shape and opens toward the front as viewed from above, projects downward and is not pressed leftward as shown in FIG. 8 (A). As shown in the figure, the left ends of the guided elongated holes 44a, 44a are guide pins 45,
It is held at the position in contact with 45 (hereinafter referred to as “right end position”).

Reference numerals 47, 47 denote shutter opening / closing arms (see FIG. 8), one ends of which are rotatably supported by the guide pins 45, 45, and which protrude forward from the rotation ends. The connection pins 47a, 47a are fixed, and further, a small controlled pin fixed to the back of a substantially middle portion in the longitudinal direction.
A control slot 44 formed in the opening / closing slider 44 has 47b, 47b.
The connection pins 47a, 47a are slidably engaged with the connection long holes 43a, 43a of the shutter 43.

Therefore, when the opening / closing slider 44 slides, the long slots for control 44b, 44b press the controlled pins 47b, 47b of the shutter opening / closing arms 47, 47 upward or downward, so that the shutter opening / closing arms 47, 47 are substantially moved. The shutter 43 is vertically moved, whereby the shutter 43 is vertically moved.

While the opening / closing slider 44 is at the right end position, the lower ends of the control slots 44b, 44b are engaged with the controlled pins 47b, 47b of the shutter opening / closing arm 47. However, as shown in FIG. 8 (A), the disc opening / closing port 42 is held at the closing position, and the opening / closing slider 44 is pressed to the left from that state, as shown in FIG. 8 (B). When the left end position, that is, the right end of the guided elongated holes 44a, 44a is moved to a position where the guide pins 45, 45 are substantially in contact with each other, the shutter opening / closing arms 47, 47 are rotated upward to move the shutter 43 in FIG. B), that is, the disk door 42 is pushed up to the open position, and when the leftward pressing of the opening / closing slider 44 is released from this state, the opening / closing slider 44 is pulled by the tension spring 46. Move to right end position by force As a result, the shutter opening / closing arms 47 are rotated downward, and the shutter 43 is returned to the closed position.

 Thus, the disk entrance 42 is opened and closed.

The leftward movement of the opening / closing slider 44 is applied to the pressed portion.
44c is pressed by a cam slider described later.

(C-3. Open / close detection switch) [FIGS. 7 and 8] Reference numeral 48 denotes an open / close detection switch attached to the front surface of the wall-shaped chassis 37, that is, whether the disk entrance 42 is open or closed. A pin plunger 48a extending in the left-right direction is a switch for detecting
Wall-like chassis 3 in a direction facing the pressed portion 44c from the left.
It is attached to 7.

And while the open / close slider 44 is at the right end position,
That is, while the shutter 43 is at the closing position, the pressed portion 44c is slightly separated from the pin plunger 48a,
In this state, the first signal is output from the open / close detection switch 48, thereby detecting that the disk entrance 42 is closed.

Further, when the open / close slider 44 moves to the left end position from this state, the pressed portion 44c presses the pin plunger 48a, whereby a second signal is output from the open / close detection switch 48, whereby the shutter 43 is opened. It is detected that the disk has moved to the open position, that is, that the disk entrance 42 has been opened.

Thus, the open / close state of the disk entrance 42 is detected.

In this case, the optical discs 3 and 4 are
Since the shutter 43 does not return to the closed position when other foreign matter is caught, the opening / closing slider 44 is enabled to return to the right end position, and the pin plunger 48a remains pressed. Therefore, when the second signal is output from the open / close detection switch 48 even though the leftward pressing of the open / close slider 44 is released, it is detected that some foreign matter is caught in the disk entrance 42. Is done.

(D. Outline of disk transport unit) [FIG. 1, FIG. 9, FIG.
FIG. 15, FIG. 18, and FIG. 18] 49 is a disk transport unit, that is, the optical disk 3 or 4,
An elevator 50 for selectively transporting the disc stocker 2, the reproducing unit 33, and the outside of the outer casing 40, and supported by the wall-shaped chassis 37, 38 so as to be movable only in the vertical direction; A rotating chassis 51 rotatably supported by the elevator 50 within a range of 90 °, and two insertion guide plates 52 and 53 fixed to the rotating chassis 51 so as to face each other in a vertical direction in parallel with each other; It comprises a draw-in roller 55 and the like arranged at a disk insertion opening 54 formed by the insertion guide plates 52 and 53.

Are horizontally provided on both front and rear sides of the elevator 50, and these guided pins 56, 56,... The cam slider is slidably engaged with the cam groove, and the cam slider is moved in the left-right direction, so that the disk transport unit 49 is stepped up and down in 11 steps.

In addition, the rotating chassis 51 has a position where the disk insertion opening 54 is turned rightward as shown in FIG. 1 (hereinafter referred to as a “stocker facing position”) and a position where the disk insertion opening 54 is shown in FIG. It is rotated between a position to be received forward (hereinafter, referred to as an “entrance-facing position”), and such rotation is performed when the disk transport unit 49 is at the uppermost stage among the 11 movement stages. Done only at

(E. Cam slider and its moving mechanism, etc.) [FIGS. 1 to 3, FIGS. 7 to 12, FIG. 15, FIG. 16, and FIG. 18] 57 and 58 are cam sliders.

(E-1. Cam Slider) [FIGS. 1 to 3, FIG. 7 to FIG. 12, FIG. 15, FIG. 16, and FIG. 18] The cam sliders 57 and 58 each have a substantially rectangular shape long in the left-right direction. Two guided grooves 57a, 57a, 58a, 58a are formed in the upper or lower part thereof in the left-right direction, and the racks extend in the left-right direction near the right end thereof. 57b, 58b are formed, and the front cam slider 57 is slidably engaged with guide pins 59, 59 projecting forward from the front wall-shaped chassis 37 in the guided grooves 57a, 57a. By the way, the rear cam slider 58
The guide pins 59, 59 projecting rearward from the rear wall-shaped chassis 38 in the guided grooves 58a, 58a are slidably engaged with the wall-shaped chassis 37, 38, respectively.
It is configured to be movable within a certain range in the left-right direction.

The upper left end surface 57c (hereinafter, referred to as a "pressed end surface") of the front cam slider 57 is opposed to the pressed portion 44c of the opening / closing slider 44 from the right.

Cam grooves 60, 60,... Each having the same structure are formed at two positions separated in the left-right direction on the surfaces of the cam sliders 57 and 58 facing each other. Are formed so that most of them extend along a position inclined downward to the left, and a large number of steps form a substantially step-like shape.

That is, the cam groove 60 has an upper end portion 60 ₁ (hereinafter, referred to as a “first step”) formed to be slightly longer in the left-right direction, and continues from the _first step 601 at a constant gradient from the left. The part that extends in the direction inclined downward is all
10 stages 60 _2, 60 _3, ... 60 ₁₁ is made continuously in this order from the top, these stages 60 _1, 60 _2, the height difference between two adjacent stages, ie, 60 ₁₁ Are the same, and the size is the disk storage room 10, 19, 1 of the disk stocker 2.
Arrangement pitch of 0, 19, ... and 10th floor disk storage room 19
And the turntable 34 have the same height as the height difference.

Incidentally, each step up stage 60 ₂ to 60 _11, in order from the top,
"Second stage", "third stage", ... "11th stage".

As shown in FIG. 3, the left end of the front surface of the rear cam slider 58 is notched shallowly, and an engagement recess 58c is formed in the upper end surface of this portion.

Reference numeral 58d denotes a switch pressing piece that projects horizontally forward from a position near the right end of the upper end of the rear cam slider 58.

(E-2. Movement of cam slider and elevator) [No.
FIG. 61 shows a moving mechanism for moving the two cam sliders 57 and 58 in synchronization with each other, and a main chassis.
17 are arranged on the lower surface.

Reference numeral 62 denotes a rotating shaft rotatably supported by the main chassis 17, which extends in the front-rear direction, and has a pinion gear 6 at both ends.
The pinions 3 and 63 are fixed, and the pinion gears 63 and 63 are meshed with the racks 57b and 58b of the cam sliders 57 and 58, respectively. The reduction gear portion 63a is formed integrally with the rear pinion gear 63.

Reference numeral 64 denotes a gear chassis, which is fixed to a portion of the lower surface of the main chassis 17 which is deflected to the rear side so as to face the rear chassis with a slight gap therebetween. A motor 65 for moving the cam slider is fixed, and a worm 66 is fixed to a rotating shaft of the motor 65. A worm wheel 67a rotatably supported at the rear end of the gear chassis 64 is meshed with the worm 66, and a small gear 67b formed integrally with the worm wheel 67a is rotatably mounted on the gear chassis 64. A small gear 68b formed integrally with the supported reduction gear 68a is meshed with a reduction gear portion 63a of the pinion gear 63.

Thus, when the motor 65 rotates, the rotation is performed by the worm 66-worm wheel 67a-small gear 67b-reduction gear 68a.
The small gear 68b, the rear pinion gear 63, and the rotation of the rotation shaft 62 through the rotation shaft 62, whereby the two pinion gears 63, 63 are rotated in synchronization with each other. 57b and 58b are simultaneously sent in the same direction, so that the two cam sliders 57 and 58 are moved in the left and right direction in synchronization with each other.

The two front and rear guided pins 56, 56,... Provided on the elevator 50 are vertically cut grooves 69, 69,. 3
(See FIG. 7, FIG. 7). The disk transporting section 49 is supported by the wall-shaped chassis 37, 38 so as to be movable up and down, and the guided pins 56, The tips protruding outward from the cutting grooves 69, 69,... Of the cam sliders 57, 58 are cam grooves 60, 60,.
.. Are slidably engaged with each other.

Therefore, when the cam sliders 57 and 58 move, the steps of the cam grooves 60, 60,... In which the guided pins 56, 56,. The disc transport unit 49 is moved up and down so as to follow the floor.

(E-3. Relationship between cam slider and elevator position with disk storage room, etc.) [FIG. 1, FIG. 7, FIG. 18] And positions of such cam sliders 57, 58 and disk transport unit 49 Disk storage room 10, 10, ..., 1
, 19,..., The relationship between the reproducing unit 33 and the disk entrance 42 is as follows.

That is, the cam sliders 57 and 58 are moved in FIG.
As shown in FIG. 7 and FIG.
Elevator 5 at the left end, middle or right end of ₁
The three positions supporting the guided pins 56, 56,... (Hereinafter, the position where the guided pins are supported at the left end are referred to as “first floor positions”, and the position supported at the intermediate portion is referred to as “B”. When the disk is in _{one of the} " _first floor positions" and the position supported at the right end is called "B _second floor position"), the disk transport unit 49
Is the top floor position, that is, the disk insertion port 54 is located on the first floor disk storage room 10 and the disk entrance 42 of the disk stocker 2.
At the same height as the cam slider 57,
58 the guide pin in the second stage 60 ₂ of the cam groove 60 56,5
When the disk carrier 49 comes to a position where the disk supporting section 6 is supported (hereinafter referred to as a “second floor position”), the disk transport section 49 is inserted into the disk insertion slot.
54 is held at the same height as the second-order disc accommodation room 19, below, the guide pin at each stage from the third stage 60 ₃ of the cam groove 60 up to the 10th floor position 10 ₁₀ 56, 56, supporting a ... (Hereinafter referred to as the “third floor position”, “fourth floor position”,..., “The tenth floor position”). , The fourth-floor disc storage chambers 19,..., Are each held at the same height as the tenth-floor disc storage chambers 19, and the cam sliders 57, 58 are moved to the eleventh stage 60, as shown in FIG. Guided pins 56 and 5 at ₁₁
When the disk transport unit 49 arrives at a position (hereinafter, referred to as "11th floor position") supporting the optical disk 3 or 4, the optical disk 3 or 4 held on the disk is turned on a turntable as shown in FIG. Position to make chucking relatively to 34 (hereinafter,
This is called "chucking position". ).

Incidentally, it is performed with the rotary cam slider 57, 58 of the rotating chassis 51 has come to the B ₁ floor position.

(E-4. Position detecting means such as cam slider) [FIGS. 1 to 3, 9 to 11] Reference numeral 70 denotes a reference position detecting switch (see FIGS. 2 and 3). A pressed piece 70a for switching the connection state of the contact between when it is pressed and when it is not, is fixed to the right end of the upper end of the front surface of the rear wall-shaped chassis 38, and the pressed piece 70a is provided on the rear cam slider 58. The switch is pressed by the switch stamping piece 58d, and the pressing is performed when the cam sliders 57, 58 come between the _first floor position and the B1 floor position.

In addition, a floor detection plate 71 elongated in the left-right direction from the lower edge of the rear cam slider 58 is horizontally protruded forward,
The floor detection plate 71 is arranged at a constant pitch in the left and right direction.
Thirteen light-transmitting notches 71a, 71a,... Are formed.

Note that the arrangement pitch of the light-transmitting notches 71a, 71a,... Has the same size as the constant arrangement pitch of the 13 positions from the _second floor position to the 11th floor position of the cam sliders 57 and 58. I have.

Reference numeral 72 denotes a floor detection sensor, which is fixed to the main chassis 17 so that the floor detection plate 71 moves between a light emitting element 72a and a light receiving element 72b which are arranged to face each other. When the slider 58 moves, the light-transmitting notch 71a of the floor detection plate 71 moves the light-emitting element 72a and the light-receiving element 72.
One pulse signal is output each time the pulse signal is located between b and b.

Thus, a predetermined signal from the reference position detection switch 70 when the cam sliders 57 and 58 move to the left, that is, a signal when the pressed piece 70a is pressed is output, and then the floor detection sensor 72 is output. from when a first output of the pulse signal is when the cam slider 57, 58 has reached the _first floor position B, the cam slider 57 and 58 the reference by detecting the output state of such signals Position is detected, and the motor 65 from that state is detected.
By counting the number of pulse signals output from the rotation direction and floor detection sensor 72, the cam slider 5
It is detected which position is currently located at 7, 58, in other words, which floor the disk transport unit 49 is at.

(F. Disk transport unit) [FIG. 1, FIG. 2, FIG. 7, FIG.
FIGS. 10, 10, 13 to 20] (f-1. Elevator) [FIG. 1, FIG. 2, FIG. 7, FIG.
FIG. 10, FIG. 16, FIG. 16, and FIG. 18] The elevator 50 has a substantially rectangular flat plate-shaped main portion 73 and the main portion.
Narrow side pieces 7 protruding downward from both front and rear ends of 73
4 and 75 are integrally formed by a metal plate, and the front side piece 74 is formed.
Are formed longer to the right than the rear side piece 75, and these side pieces 7
Guided pin 5 from a position separated in the left and right direction of 4, 75
6, 56, ... are protrudingly provided.

Reference numeral 76 denotes a sun gear supporting portion that forms a substantially central portion of the main portion 73,
It has a substantially keyhole-like outer shape, only a part of which is continuous with the remaining portion of the main portion 73, and is formed so as to be located slightly below the remaining portion, and a circular hole 76a is formed in the central portion thereof. Are formed.

A motor mounting piece 73a is provided at a position near the rear end of the left side of the main portion 73, and a sensor mounting piece 73b is provided from the front end of the right side edge.
Are projected downward.

(F-2. Rotating chassis) [FIG. 1, FIG. 2, FIG. 9, FIG.
10, FIG. 13 to FIG. 18] The rotating chassis 51 has a disk-shaped main part 77 having a diameter slightly smaller than the diameter of the large-sized disc 3 and a main part 77 of the outer peripheral edge of the main part 77. Leg pieces 78 and 79 projecting downward from two positions substantially opposite to each other with the center therebetween are formed integrally by a metal plate, and the main portion 77 has a circular hole at the center thereof. 77a, and three guided elongated holes 77b, 77b, 77b (see FIG. 10) extending in an arc shape centered on the center of the main portion 77 are formed near the outer peripheral edge. Holes 77b, 77b, 77b each have a central angle of approximately 9
It has a length of 0 ゜.

Reference numerals 80, 80, and 80 denote guide pins each having a flange formed at a lower end. These guide pins 80, 80, and 80 are inserted through the three guided elongated holes 77b, 77b, and 77b, respectively, and have upper ends thereof. The elevator 50 is fixed to the lower surface of the main part 73 of the elevator 50, so that the rotating chassis 51 is positioned so as to face the lower surface of the elevator 50 at a slight interval.
It is supported so that it can rotate freely in the range of approximately 90 degrees at the central angle of 50.

Reference numeral 81 denotes an arcuate elongated plate-like gear having a length of approximately 90 ° at a central angle, having a tooth portion 81a formed on an outer edge thereof, and a tooth portion 81a formed on a lower surface of the rotating chassis 51. Are mounted so as to slightly protrude from the outer peripheral edge of the rotating chassis 51.

Such a gear plate 81 is provided at a position opposite to the disk insertion opening 54 with the center of the rotating chassis 51 interposed therebetween.

Reference numerals 82a and 82b denote position detection protrusions formed on the main portion 77 of the rotating chassis 51 so as to protrude from the outer peripheral edge thereof, and are provided at positions separated from each other at a center angle of approximately 90 °.

Reference numeral 83 denotes a direction detection switch (see FIGS. 2, 14, and 15) for detecting the direction of the rotating chassis 51. A first detection switch 83 has a pair of leaf-shaped contacts 84a and 84a and 85a and 85a, respectively. , A second leaf switch 84, 85;
The contact ends of 84a and 84a and 85a and 85a are attached to the lower surface of the main part 73 of the elevator 50 such that the contact ends of the rotation detection parts 82a and 82b of the rotating chassis 51 intersect.

Then, when the rotating chassis 51 comes to the position facing the stocker, one of the position detecting projections 82a comes into contact with one contact 84a of the first leaf switch 84, as shown in FIGS. It is brought into contact with the other contact 84a, and when the rotating chassis 51 comes to the entrance-facing position, the second
As shown in FIG. 15, the other position detecting projection 82b is
The first leaf switch 84 or the second leaf switch 85 outputs a predetermined signal, by contacting one contact 85a of the leaf switch 85 and bringing it into contact with the other contact 85a.

Accordingly, by detecting this signal, it is detected which direction the rotating chassis 51 is currently facing.

(F-3. Insertion guide plate) [FIG. 1, FIG. 9, FIG.
15, FIG. 18] The above-described insertion guide plates 52 and 53 are each formed of a synthetic resin.

The upper insertion guide plate 52 has a substantially semicircular plate shape having substantially the same size as half of the main portion 77 of the rotating chassis 51, and a substantially U-shaped notch at the center of a side edge extending linearly. A portion 52a is formed, and on the upper surface thereof, short spacer protrusions 52b, 52b,
Are projected.

The upper insertion guide plate 52 is rotated so that the lower surface of the main portion 77 of the rotating chassis 51 faces the region opposite to the region where the gear plate 81 is provided with the center therebetween. Fixed to chassis 51. The insertion guide plate 52
And a main part 77 of the rotating chassis 51 are provided with a spacer projection 52.
are provided for the heights of b, 52b,...

The lower insertion guide plate 53 has substantially the same size as the upper insertion guide plate 52, and a relatively large notch 53a in the shape of a substantially equilateral trapezoid is formed at a side edge extending linearly, The intermediate portion 53b is bent in a crank shape, and one of the two portions 53c and 53d on both sides of the intermediate portion 53b having an arc-shaped outer peripheral edge is slightly higher than the other portion 53d. Is formed.

The lower insertion guide plate 53 has both ends in the longitudinal direction of the other portion 53d fixed to the lower surfaces of the horizontal lower pieces 78a and 79a of the two legs 78 and 79 of the rotating chassis 51. ing.

Thus, one portion 53c of the lower insertion guide plate 53 and a part of the upper insertion guide plate 52 are opposed to each other with an interval approximately several times as large as the thickness of the optical discs 3 and 4. The space between the above-mentioned portions is the disc insertion port 54.

(F-4. Retraction roller) [FIG. 1, FIG. 2, FIG. 9, FIG.
FIG. 15 to FIG. 15, FIG. 18 to FIG. 20] Reference numerals 86 and 87 denote roller support arms, whose substantially central portions project horizontally from the outer surfaces of the two leg pieces 78 and 79 of the rotating chassis 51. Both ends of the shaft 55a of the pull-in roller 55 are rotatably supported at one of its rotating ends, that is, at the rotating end closer to the disk insertion port 54, by being rotatably supported by the support pins 88, 88. Pressed protrusions 86a and 87a that are supported and that protrude outward from each other are formed at the other rotating end.

The pull-in roller 55 has a length substantially equal to the diameter of the rotating chassis 51, and a rubber roller body 55b is press-fitted around the shaft 55a except for both ends thereof. Is almost drum-shaped.

A tension spring 8 is provided between the other rotating end of the roller support arms 86, 87 and the lower pieces 78a, 79a of the legs 78, 79.
9, 89 are stretched. Therefore, the roller support arm 8
6, 87 is always energized by a turning force in a direction in which one of the turning ends moves upward, and as a result,
55 is elastically contacted with the lower surface of the upper insertion guide plate 52.

Note that the pull-in roller 55 is disposed slightly closer to the center of the rotating chassis 51 from the disk insertion port 54.

90 is one leg of the upper surface of the main part 77 of the rotating chassis 51
78, that is, an input gear rotatably supported at a position near the leg piece 78 located on the front side in a state where the rotating support chassis 51 is at the stocker facing position, 91 is always meshed with the input gear 90. The first transmission gear has a bevel gear 91a integrally formed on the lower surface thereof.

Reference numeral 92 denotes a second transmission gear rotatably supported by the support pin 88 which supports one roller support arm 86. A bevel gear 92a is integrally formed on one side of the second transmission gear. The gear 92a meshes with the bevel gear 91a of the first transmission gear 91.

Reference numeral 93 denotes a speed-increasing gear rotatably supported at an intermediate position between one rotation end of the roller support arm 86 and the support pin 88, and two large and small gear portions 93a and 9 coaxial with each other.
The large gear portion 93a is formed integrally with the second transmission gear 92, and the small gear portion 93b is formed as a rotary shaft 55a of the pull-in roller 55.
Are engaged with a gear 94 fixed to one end of the gear.

Therefore, when the input gear 90 is rotated, the rotation is first.
Transmission gear 91-second transmission gear 92-speed increasing gear 93-gear 94
, The rotation shaft 55a is rotated, whereby the pull-in roller 55 is rotated.

(F-5. Driving mechanism) [FIG. 1, FIG. 2, FIG. 10, FIG.
FIG. 95 is a drive mechanism for selectively rotating the input gear 90 or the rotating chassis 51, and is provided in the elevator 50.

(F-5-a. Structure) [FIG. 1, FIG. 2, FIG. 10, FIG.
FIG. 96 is a motor fixed to the motor mounting piece 73a of the elevator 50, 97 is a worm fixed to the rotating shaft of the motor 96, 98 is a worm wheel 98a and an output gear 98b which are coaxial with each other. The formed drive gear is rotatably supported by a support shaft 99 projecting downward from the main portion 73 of the elevator 50, and its worm wheel 98a is meshed with the worm 97 from the right.

Reference numeral 100 denotes a disk-shaped gear support plate fixed to the sun gear support portion 76 of the elevator 50, and the gear support plate 100
Sun gear with a substantially ring-like shape and teeth formed on the outer periphery
101 is rotatably fitted to the outside.

102 is a drive pulley rotatably supported by the main part 73, 103
Is a driven pulley rotatably supported by a portion of the sun gear supporting portion 76 that protrudes from the remaining portion, and the driving pulley 102 and the driven pulley 103 are integrally formed with gear portions 102a and 103a. I have. An endless transmission belt 104 is stretched between the driving pulley 102 and the driven pulley 103, and the gear portion 103a of the driven pulley 103 is always meshed with the sun gear 101.

Reference numeral 105 denotes a frico lever, which includes a main lever 106 and a limiter lever 107 which is positioned so as to overlap the main lever 106 from above. The main lever 106 has a main portion 106a substantially L-shaped when viewed from above and below, and a supported portion 106b including a part of the main portion 106a and substantially U-shaped when viewed from the side are integrally formed. The supported portion 106b is a main portion of the elevator 50.
A lever support pin 108 protruding downward from 73 is supported so as to be rotatable in the horizontal direction.
A flat gear-shaped frico gear 10 is provided at the rotation end of the longer arm extending substantially diagonally forward to the left from the support pin 108.
9 is rotatably supported, and the frico gear 109 is located between the gear portion 102a of the drive pulley 102 and the tooth portion 81a of the gear plate 81 provided on the rotating chassis 51, and always outputs the gear 98b of the drive gear 98. Is engaged.

The limiter lever 107 has a left end rotatably supported by the lever support pin 108, and a spring abutment 107a protruding downward from a position near the rotation end to form a main portion 106a of the main lever 106. The arm 106 is inserted into the hole 106c formed at the rotating end of the shorter arm with a margin, and a small controlled pin 107b is vertically provided on the lower surface of the rotating end.

Reference numeral 110 denotes a torsion spring. The tip of one arm 110a is elastically contacted with the supported portion 106b of the main lever 106 from substantially forward, and the tip of the other arm 110b is substantially attached to the spring contact piece 107a of the limiter lever 107. The spring contact piece 107a is in contact with the front side of the hole 106c of the main lever 106.

111 is a tension spring stretched between the main lever 106 and the elevator 50, and has a tension force smaller than the elastic force of the torsion spring 110.
A clockwise turning force is applied to the 105 when viewed from above. In this state, the frico gear 109 is
Gear portion 102a.

Reference numeral 112 denotes a switching slider for switching the position of the frico lever 105.The switching slider 112 is supported movably in the left-right direction on the left side of the rear end of the lower surface of the main part 73 of the elevator 50, and forms a control slot 113 having a substantially trapezoidal shape. A pressed pin 114 is provided to project rearward from a protruding piece 112a that projects downward, and a distal end of the pressed pin 114 has a notch 75a formed in a rear side piece 75 of the elevator 50. And is located in a shallow cutout formed at the left end of the front surface of the rear cam slider 58.

The tip of the controlled pin 107b provided on the limiter lever 107 is slidably engaged with a control slot 113 formed in the switching slider 112, and the control slot 113 is located at the left end thereof. 113a or the right end 113b is the controlled pin 107
When engaged with the control pin 107b, the control pin 107b is formed so as not to apply a pressing force in any of the clockwise direction and the counterclockwise direction.

The elevator 50 is supported by the cam slider 58 when the cam slider 58 is located between the first floor position and the eleventh floor position, and a control pin is attached to the left end 113a of the control slot 113 of the switching slider 112. 107b is located. The position of the switching slider 112 in this state is hereinafter referred to as a “first position”.

(F-5-b. Switching of Driving System) [FIG. 16] When the cam slider 58 is located between the first floor position and the eleventh floor position, the main lever 106 moves the frico gear 109 to the driving pulley 102. (Hereinafter, referred to as a “roller rotation position”).

Further, when the cam slider 58 moves from the second floor position to the first floor position, in other words, when the disc transport unit 49 moves to the top floor position, as shown in FIG.
The pressed pin 114 of 112 is engaged with the engaging recess 58c formed in the cam slider 58 from below.

Therefore, the cam slider 58 from this state moves to B ₁ floor position, the engagement recess inner surface is pressed pin 58c 1
Pressing 14 causes the switching slider 112 to move to the second position shown in FIG. 16 (B), that is, a position shifted a predetermined distance to the left from the first position. As a result, the controlled pin 107b of the limiter lever 107 is pressed substantially rearward so as to be located at the intermediate portion 113c of the control elongated hole 113, and therefore, the frico lever 105 is rotated counterclockwise when viewed from above. ,
The main lever 106 moves the frico gear 109 to the rotating chassis 51.
Is moved to a position (hereinafter, referred to as a “chassis rotation position”) that meshes with the tooth portion 81a of the gear plate 81 fixed to the gear plate 81.

In this case, just before the controlled pin 107b rides on the intermediate portion 113c of the control elongated hole 113, the frico lever 105 reaches the above-described chassis rotation position, and then the limiter lever 107
Is further rotated in the counterclockwise direction, so that the spring contact piece 107a of the limiter lever 107 is separated from the front edge of the hole 106c of the main lever 106, so that the elastic force of the torsion spring 110 causes the main lever 106 to move. Acts as a force for crimping to the position when the chassis rotates.

When the cam slider 58 is moved to B ₂ floor position, switching the slider 112 is further moved leftward, whereby the third to said changeover switching slider 112 is shown in Figure No. 16 (C)
Position, that is, the controlled pin 107b is moved to the right end 1 of the control slot 113.
It is moved to the position to be located at 13b.

Accordingly, in this state, the substantially rearward pressing of the limiter lever 107, which has been performed, is released, and the main lever 106 is pulled by the tensile force of the tension spring 111.
Is returned to the roller rotation position integrally with the limiter lever 107.

Incidentally, the switching slider 112 when the cam slider 58 from this state back to the ground _floor position B is to the second position, the main lever 105
Are moved to the chassis rotation position, and when the cam slider 58 returns to the first floor position, the switching slider 112 is moved.
Are moved to the first position, the main lever 105 is moved to the roller rotation position, and further, when the cam slider 58 is moved rightward from this state, the disk transport unit 49 is moved downward. Therefore, the pressed pin 114 of the switching slider 112 escapes downward from the engaging recess 58c of the cam slider 58, and the switching slider 112 is held at the first position.

Thus, only when the cam slider 58 comes to the _first floor position B, the frico gear 109 has the teeth 81 of the gear plate 81 of the rotating chassis 51.
a, and in this state, the rotation of the motor 96 is
The driving force is transmitted through a system of a drive gear 98, a frico gear 109, and a tooth portion 81a of the gear plate 81. Further, Furikogiya 109 when the cam slider 58 is located at the position other than the _first floor position B is the gear portion 102a meshes of the drive pulley 102, the motor 96 in this state
The rotation of the worm 97-the driving gear 98-the frico gear 109-the driving pulley 102-the transmission belt 104-the driven pulley 103-the gear portion 103a of the driven pulley 103-the sun gear 101-the gear fixed to the pull-in roller 55 from the input gear 90. The power is transmitted to the pull-in roller 55 through a system of up to 94 gears.

(F-5-c. Rotation of Rotating Chassis and Retraction Roller) [FIGS. 2 and 16] As described above, the disk transport unit 49 is a cam slider.
58 has come to the top floor position in a state coming to the _first floor position B, At this time, if the rotating chassis 51 is coming stocker opposing position is Furikogiya 109 rotates chassis 51
And meshes with the clockwise side end of the tooth portion 81a of the gear plate 81 when viewed from above. Therefore, from this state, when the motor 96 rotates forward, that is, when the drive gear 98 is rotated in the clockwise direction as viewed from above, the frico gear 109 is rotated in the counterclockwise direction. The rotation chassis 51 is rotated in the clockwise direction, whereby the rotating chassis 51 is moved to the entrance / exit position, and the disk insertion opening 54 is opposed to the disk entrance 42.

In addition, when the motor 96 rotates in the reverse direction from this state, the frico gear 109 is rotated in the clockwise direction, so that the gear plate 81 is rotated in the counterclockwise direction.
Is moved to the stocker-facing position.

Thus, rotation of the rotating chassis 51 is performed.

On the other hand, when the motor 96 is reversed when the cam slider 58 is located at the position other than the _first floor position B, the sun gear 101 is rotated in the clockwise direction, whereby the pull-in roller 55, rotating chassis 51 stocker facing position When the motor 96 is rotated forward, the sun gear 101 is rotated in a counterclockwise direction when the motor 96 rotates forward. Withdrawn by 55
Is rotated in the delivery direction opposite to the retraction direction.

(F-6. Delivery of optical disk to disk transport unit)
[FIG. 18 (A), FIG. 18 (B)] Then, when the optical disc 3 or 4 is inserted into the disc insertion slot 54, the optical disc 3 or 4 is indicated by a two-dot chain line in FIG. 18 (A). As shown, the insertion end is inserted into the gap between the central portion of the drawing roller 55, that is, the small diameter portion, and the upper insertion guide plate 52, and the insertion guide plate 52 and the drawing roller 55 are inserted.
When the pull-in roller 55 rotates in the pull-in direction from this state, the optical disk 3 or 4 is pulled in by the rotation of the pull-in roller 55.

This retraction is performed until the center of the optical disk 3 or 4 substantially coincides with the center of the rotating chassis 51, as shown in FIG. 18 (B), and the disk transport unit 49 moves to the chucking position. The insertion guide plate 52 and the retracting roller are moved until the roller is moved or the retracting roller 55 rotates in the feeding direction.
55 and held.

When the pull-in roller 55 rotates in the sending direction from the state where the optical disk 3 or 4 is held by the rotating chassis 51 in this way, the optical disk is sent out from between the insertion guide plate 52 and the pull-in roller 55. Will be.

(F-7. Chucking mechanism) [FIG. 1, FIG. 13, FIG.
FIG. 115 is a chucking plate for chucking the optical disk 3 or 4 to the turntable 34;
A disk-shaped protrusion having a diameter slightly smaller than the diameter of the small-sized disk 4, and a cylindrical protrusion short in the axial direction at the center thereof.
A ring-shaped magnet 115b and a positioning protrusion 115c positioned at the center of the magnet 115b are fixed inside the protrusion 115a, and a flange plate 116 is rotatable on the upper surface of the protrusion 115a. It is supported by.

Reference numeral 117 denotes a plate holding plate, and two portions 117 located on both sides of the substantially trapezoidal intermediate portion 117a.
A semicircular cutout 117d is formed at the end of one of the b and 117c 117b, and a short L-shaped abutment piece 117e that is substantially L-shaped when viewed from the side from the end of the other portion 117c is downward. It protrudes toward.

Reference numeral 118 denotes a support pin arranged near the gear plate 81 on the lower surface of the rotating chassis 51 so as to extend in parallel with the pull-in roller 5. The plate holding plate 117 has a center of an arc of the notch 117d. In a state that almost matches the center of
A spring 119 is positioned so as to overlap the lower surface of the rotating chassis 51, and the other portion 117c is rotatably supported by the support pin 118, and is externally fitted to the support pin 118.
Thus, the turning force in the direction in which one portion 117b moves upward is urged.

The notch 1 of such a plate holding plate 117
The push-up arms 117f, 117f located on both sides of 17d are located between the chucking plate 115 and its flange plate 116, so that the abutment piece 117e of the plate holding plate 117 is not pressed from below. In between, chucking plate 11
5 is pressed against the lower surface of the upper insertion guide plate 52 by the push-up arms 117f, 117f.

Since the chucking plate 115 is provided in this manner, when the optical disk 3 or 4 is pulled into the disk transport unit 49, the chucking plate 115 is moved to the eighteenth position.
As shown in FIG. 2B, the optical disc 3 or 4 is positioned so as to relatively overlap with the optical disc 3 or 4 from above.

(F-8. Disk Positioning Mechanism) [FIGS. 9, 13 to 15, and 17] Reference numeral 120 denotes a disk positioning mechanism provided on the lower surface of the main portion 77 of the rotating chassis 51.

(F-8-a. Structure) [FIG. 9, FIG. 13 to FIG.
Figure] 121 and 122 are slide levers, and the rotating chassis 51
The main portion 77 is disposed at positions opposite to each other with respect to the center of the main portion 77 so as to extend in a direction parallel to the drawing roller 55, and is slidable within a certain range in the longitudinal direction thereof.
And are urged by the tension springs 123 and 124 to move in opposite directions.

Reference numerals 125, 125 denote entrance side opening / closing arms, 126, 126 depth side opening / closing arms. These opening / closing arms 125, 125, 126, 126 are supported by the main part 77 so as to be rotatable in the horizontal direction. , 125 are arranged at positions respectively corresponding to both ends of the disc insertion slot 54, and are connected to each other simultaneously through the entrance side slide lever 121 so as to rotate in opposite directions, and Opening / closing arms 126, 126 are gear plate 81
, And are connected to each other via a rear side slide lever 122 so as to rotate simultaneously and in opposite directions.

And the rotating chassis 51 of the entrance side opening / closing arm 125, 125
The pressed pins 127, 127 are directed downward from the rotating end that is positioned so as to protrude outside, and the positioning pins 128, 128 are directed downward from the rotating end of the back opening / closing arms 126, 126, respectively. It is protruding.

Reference numeral 129 denotes an interlocking arm, which is disposed at a position near the other leg piece 79 of the main portion 77, an intermediate portion thereof is supported by the main portion 77 so as to be freely rotatable in the horizontal direction, and one end portion is on the back side. The other end portion is rotatably connected to the slide lever 122 and faces one end edge of the entrance side slide lever 121.

When the pressed pins 127 are not pressed in a direction to increase the distance between them, the slide lever 12
1 and 122 are held at the position of one end in the movement range by the tensile force of the coil springs 123 and 124, and in this state (the
In the state shown in Fig. 14), the inlet-side opening / closing arms 125, 125
Is held at a position where the two pressed pins 127, 127 stand by at an initial position separated by a distance slightly smaller than the diameter of the small-sized disk 4 in a direction parallel to the pull-in roller 55, and the rear opening / closing arms 126, 126 The positioning pins 128, 128 are held at a position waiting at an initial position separated from each other by a distance slightly smaller than the diameter of the small-sized disk 4 in a direction parallel to the pull-in roller 55.

Most of the above members are arranged between the upper insertion guide plate 52, the plate holding plate 117 and the like and the main portion 77 of the rotating chassis 51, but the pressed pins 127, 127 and the positioning pins 12
The lower portions of 8, 128 are located at the same height as the disc insertion slot 54.

(F-8-b. Operation) [FIG. 17] Then, when the large-size disc 3 is inserted into the disc insertion slot 54, the outer peripheral edge thereof is covered as shown by the solid line in FIG. 17 (A). The pressing pins 127, 127 are pressed in the opening direction, that is, in the direction to increase the distance between them. As a result, the inlet side opening / closing arms 125, 125 are rotated in the direction in which the pressed pins 127, 127 are opened, and the inlet side slide lever 121 is moved to the leg piece 7.
Moved to the 9 side to rotate the interlocking arm 129,
The back slide lever 122 is moved toward the leg 78 to open the opening / closing arms 126, 126, that is, rotate so that the positioning pins 128, 128 move in the opening direction, that is, the direction to increase the distance between them. These movements cause the center of the optical disc 3 to move as indicated by the two-dot chain line in FIG.
It reaches the maximum amount when it comes on the straight line connecting to and 127.
When the optical disc 3 is further inserted, the entrance-side opening / closing arms 125 are rotated in the closing direction of the pressed pins 127, 127, that is, in the direction of reducing the distance therebetween, but the positioning is performed. Once the pins 128, 128 have been closed, they are again pressed in the opening direction by the large-sized disc 3,
When the large-size disc 3 is inserted, as shown by a dashed line in FIG.
It is done to the point where it comes into contact with. In this state, the center of the large-size disc 3 is the chucking plate 11.
5, the pressed pins 127, 127 do not contact the pressed pins 127, 127, so that the pressed pins 127, 127 are returned to their initial positions, and the positioning pins 128, 128 are large-sized. It is in elastic contact with the outer peripheral edge of the disk 3.

On the other hand, when the small size disc 4 is inserted,
First, as shown by the solid line in FIG. 17 (B), the small-sized disk 4 comes into contact with the pressed pins 127, 127 and presses them in the opening direction. However, in this case, since the diameter of the small-sized disk 4 is small, the small-sized disk 4 is separated from the pressed pins 127 and 127 before the half of the small-sized disk 4 is inserted into the back side of the draw-in roller 55, and accordingly, the positioning pins 128 and 128 is slightly opened and then returned to the initial position before the small size disk 4 comes into contact.

Thus, the insertion of the small-size disk 4 is performed by the positioning pins 12 located at the initial position, as indicated by the one-dot chain line in FIG.
In this state, the center of the small-sized disk 4 is fixed to the chucking plate.
Approximately coincides with the center of 115.

(F-9. Insertion detection means) [FIGS. 9, 14, 15,
17] 130 is a micro switch-shaped trigger switch attached to the lower surface of the rotating chassis 51, and its pin flange 130a is arranged so as to face the side edge of one of the inlet-side opening / closing arms 125, 125. The pin plunger 130a is pressed in a state where the opening / closing arm 125 is at the initial position, and a signal output when the pressing is released (hereinafter, referred to as a signal).
This is called "insertion detection signal". ) Triggers the motor 96 to rotate in the reverse direction.

Therefore, when the optical disk 3 or 4 is inserted into the disk insertion slot 54, as described above, the opening / closing arms 125, 125
Moves at least once in the opening direction, so that the pressing against the pin plunger 130a is temporarily released, whereby the drawing roller 55 is rotated in the drawing direction to draw the optical disc.

131 and 132 are pull-in detection sensors, each of which is a light emitting element 131 attached to the upper surface of the main portion 77 of the rotating chassis 51.
a, 132a and light receiving elements 131b, 132b attached to the other part 53d of the lower insertion guide plate 53, these light emitting elements 131a,
132a and light receiving elements 131b, 132b are the main part 77 and upper insertion guide plate
One of the pull-in detection sensors 131 is opposed to each other in the up-down direction with a light-transmitting hole formed in the 52 being inserted between the insertion guide plate 52 and the pull-in roller 55.
Is located at a position corresponding to a position slightly inward from the outer peripheral edge of the small-size disk 4 in the above-described state. Are located.

In the following description, a signal output when light from the light emitting elements 131a and 132a is applied to the light receiving elements 131b and 132b is referred to as a first signal, and a signal output when the irradiation is stopped is referred to as a first signal. This is called a second signal.

Then, when the small-sized disk 4 comes to the pull-in completion position, only one of the pull-in detection sensors 131 has its light emitting element 131.
Since the irradiation of the light emitted from a to the light receiving element 131b is interrupted, a second signal is output, and the other pull-in detection sensor 132
Since the first signal is still output from the pull-in roller 55, by detecting these signals, it is detected that the small-sized disk 4 has reached the pull-in completion position. The rotation in the retraction direction is stopped.

On the other hand, when the large-sized disc 3 is pulled in, the second signals are sequentially output from both of the pull-in detection sensors 131 and 132. By detecting these signals, the pulled-in optical disc becomes large-sized. The disk 3 is detected. In this case, the large-size disk 3
Since the two signals are output immediately before the pull-in is completed, the pull-in is completed at a predetermined time, for example, about 0.6 seconds after the second signal is output from only one of the pull-in detection sensors 131. The rotation of the pull-in roller 55 in the pull-in direction is stopped. As described above, the pull-in detection sensors 131 and 132 also constitute a disk diameter determining means for determining the disk diameter of the recording medium disk.

(F-10. Pushing arm pressing lever, disc presence / absence sensor) [FIG. 2, FIG. 10, FIG. 19, FIG. 20] (f-10-a. Pushing arm pressing lever) 133 is an optical disk from the disk stocker 2 When removing the extruding arms 20, 20, ... or 21, 21, ...
.. Is an extrusion arm pressing lever for moving to the extrusion completion position.

The pushing arm pressing lever 133 has a plate shape elongated in the left and right direction, and a pressed piece 133a is protruded from a substantially middle portion thereof, and a pressing piece 133b is protruded rearward from a position near the right end. ing.

Such a pushing arm pressing lever 133 is slidably supported in the left and right directions within a certain range on the rear surface of a part of the front piece 74 of the elevator 50 that protrudes rightward from the main part 73, and , The moving force to the left is always urged by the tensile force of the tension spring 134 stretched between the elevator 50 and the pressed piece 133a while it is not pressed to the right. Is held at a position close to the pressing pin provided on the return arm of the disc loading / unloading mechanism described later from the right.

(F-10-b. Disk presence / absence sensor) 135 is the disk storage room 10, 1 of the disk stocker 2.
0,... And 19, 19,... Are disc presence / absence sensors for detecting whether or not optical discs are stored in the main body 73 of the elevator 50. A light-emitting element 135a and a light-receiving element 135b which are attached to each other and are located opposite to each other in the front-back direction are provided.

The light emitting element 1 of such a disk presence sensor 135
35a and the light receiving element 135b are, when viewed from above, the left end 29 of the stock detection levers 29, 29,.
a, 29a, ...
In the state where the light emitted from the light emitting element 135a is irradiated on the light receiving element 135b, a signal meaning "no disk" is output, and in the state where the irradiation is cut off, a signal meaning "disk present" is output. You.

Therefore, as described above, the stock detection levers 29, 2
9 ... Disk storage room 1 of disk stocker 2
When the optical disk is stored in 0, 10,... Or 19, 19,..., The optical disk is at the storage position, and when the optical disk is not stored, it is moved to the non-storage position. When the disk transport unit 49 comes to the floor corresponding to a certain disk storage room, and the stock detection lever 29 corresponding to the disk storage room is at the storage position,
As shown in FIG. 19, the left end portion 29a of the stock detection lever 29 is relatively positioned between the light emitting element 135a and the light receiving element 135b of the disk presence / absence sensor 135 to cut off the light irradiation to the light receiving element 135b. In this case, a signal indicating that "there is a disk" is output, and when the stock detection lever 29 is at the non-storage position, as shown in FIG.
Since the left end portion 29a escapes slightly to the right of the disk presence / absence sensor 135, in this case, the irradiation of the light to the light receiving element 135b is not interrupted, so that the "no disk" signal is output.

In this way, it is detected whether the optical disk is stored in the disk storage room.

(G. Disk loading / unloading mechanism) [FIG. 2, FIG. 3, FIG. 12, FIG.
19 and FIG. 20] 136 presses the pushing arm pressing lever 133 to push the optical disk stored in the disk stocker 2 by the pushing arms 20, 20,... Or 21, 21,. , Or 19, 19,... And a disc in / out which functions to completely return the optical disc sent from the disc transport unit 49 toward the disc stocker 2 to the disc storage chamber. Most of the mechanism is provided on the substantially right half of the lower surface of the main chassis 17.

(G-1. Delivery arm, return arm) [FIG. 2, FIG.
, FIG. 12, FIG. 19, FIG. 20] Reference numeral 137 denotes an elongated plate-shaped delivery arm, and a substantially middle position thereof is rotatable about a support shaft 138 projecting downward from the main chassis 17. A cam elongated hole 137a extending in the longitudinal direction is formed at a portion rearward from the support shaft 138, and a tall pressing pin 139 is erected from a front rotating end thereof. Of the main chassis 17 protrudes upward through a horizontally long recess 17a formed on the front side surface of the main chassis 17, and its upper end extends to a position higher than the first-floor disk storage room 10 of the disk stocker 2.

Reference numeral 140 denotes a first arm rotating gear rotatably supported at a position slightly rearward from the support shaft 138 in the main chassis 17, and a cam pin 141 protrudes downward from a portion near the outer periphery thereof. The cam pin 141 is slidably engaged with the cam long hole 137a of the delivery arm 137,
Therefore, while the arm rotation gear 140 makes one rotation, the delivery arm 137 is rotated so as to make one reciprocation with a predetermined stroke, whereby the pressing pin 139 is positioned close to the front side surface of the disk stocker 2. Makes one round trip in the left-right direction.

142 is a return arm, which is also in the shape of an elongated plate,
A cam elongated hole 142a extending in the longitudinal direction is formed,
One end is rotatably supported by a support shaft 143 protruding from a position near the rear of the lower surface of the main chassis 17, and a tall push pin 144 is also erected from the rotation end,
Most of the push-pins 144 are arc-shaped notches 17b formed on the left side surface of the disk stocker 2 in the main chassis 17, that is, positions substantially corresponding to the rear half of the surface where the openings of the disk storage chambers are arranged. And the upper end thereof is located at substantially the same height as the disc storage room 10 on the first floor of the disc stocker 2.

145 is a second arm rotation gear,
7 is rotatably supported at a position slightly to the left from the support shaft 143, a cam plate 146 is fixed to the lower surface thereof, and a cam pin 147 protrudes downward from the tip of the cam plate 146. The cam pin 147 is connected to the cam slot 14 of the return arm 142.
It is slidably engaged with 2a. Therefore, while the second arm rotation gear 145 makes one rotation, the return arm 142 is rotated so as to make one reciprocation with a predetermined stroke.
The push pin 144 is reciprocated once in a substantially front-rear direction at a position close to the left side surface of the disk stocker 2.

Note that the cam plate 146 is provided with an arm 146a protruding laterally.

(G-2. Oscillating gear, detection switch, etc.) [FIG. 12] Reference numeral 148 denotes a motor mounted on the gear unit chassis 64, and a worm 149 is fixed to a rotating shaft thereof.
49 meshes with a worm wheel 150 rotatably supported by the gear chassis 64.

Reference numeral 151 denotes a reduction gear constantly engaged with the second arm rotation gear 145 from substantially the front side.

152 is a swinging lever, one end of which is supported by the gear chassis 64 so as to be rotatable in the horizontal direction, and a gear support shaft 153 protrudes upward from the rotating end, A swing gear 154 is rotatably supported by the gear support shaft 153. The swing gear 154 is integrally formed with two large and small gear portions 154a and 154b coaxial with each other, and the small gear portion 154b is constantly meshed with a gear (not shown) integrally formed with the worm wheel 150. The large gear portion 154a is located between the reduction gear 151 and the first arm rotating gear 140.

The swing gear 154 is in elastic contact with the swing lever 152 via friction means (not shown). Therefore, when the worm wheel 150 rotates, the swing lever 152
Then, the rotating power in the same direction as the rotation direction of the worm wheel 150 is urged, and the large gear portion 154a is pressed to a position meshing with the reduction gear 151 or a position meshing with the first arm rotating gear 140.

Reference numeral 155 denotes a first arm position detection switch for detecting the initial position of the sending arm 137, and reference numeral 156 denotes a second arm position detection switch for detecting the initial position of the return arm 142. Detection switch 15
5 and 156 are provided with pressed pieces 155a and 156a that switch the connection state of the contact points when pressed, and the first arm position detection switch 155 is configured such that the rotation end on the rear side of the delivery arm 137 is rotated in the rotation direction. When the right end of the movement range is reached, the pressed end 155a is positioned so as to be pressed by the rotating end,
The arm position detection switch 156 of the second arm rotation gear 1
The cam plate 146 is disposed so as to be slightly obliquely rearwardly left from 45 and has its pressed piece 156a on the rotation locus of the tip of the arm 146a of the cam plate 146.

(G-3. Operation) [FIG. 12] Then, the motor 148 rotates in a direction to rotate the worm wheel 150 in a counterclockwise direction when viewed from above (hereinafter, referred to as “rotation”).
Say "forward rotation". Then, the large gear portion 154 of the swing gear 154
Since a meshes with the first arm rotating gear 140 and rotates it in the counterclockwise direction, the delivery arm 137 is rotated, and as shown by a solid line in FIG. At a position where the pressing pin 139 is located at the left end of the cutout portion 17a formed in the main chassis 17 (hereinafter referred to as an “initial position”).
Say ), The rear rotating end presses the pressed piece 155a of the first arm position detection switch 155, and in this state, rotation of the motor 148 is performed according to a signal output from the arm position detection switch 155. Stopped.

Therefore, while the motor 148 is not rotating forward, the delivery arm 137 is held at the initial position, and in this state, the pressing pin 139 is pressed by the pushing piece of the pushing arm pressing lever 133 provided on the elevator 50. 133a is located close to or lightly from the left.

Thus, when the motor 148 rotates forward, the first arm rotation gear 140 makes one rotation, thereby causing the delivery arm 137 to rotate.
Is moved to the initial position again after moving substantially to the right. During this time, the pressing pin 139 moves the pushing arm pressing lever 133 to the right.

When the motor 148 rotates in the reverse direction, the large gear portion 154a of the swing gear 154 meshes with the reduction gear 151 and rotates it clockwise as viewed from above. Return arm 142 rotated counterclockwise
Is rotated, and the return arm 142 is moved to a position where its pressing pin 144 is located at the rear end of a cut groove 17b formed in the main chassis 17 as shown by a solid line in FIG. The arm 146a of the cam plate 146 presses the pressed piece 156a of the second arm position detection switch 156,
In this state, the rotation of the motor 146 is stopped according to the signal output from the arm position detection switch 156.

Therefore, while the motor 148 does not rotate reversely, the return arm 1
42 is held at its initial position, and in this state, the pressing pin 144 is located at a position where it slightly escapes backward from the left side surface of the disk stocker 2.

Thus, when the motor 148 rotates in the reverse direction, the second arm rotation gear 145 makes one rotation, whereby the pushing pin 144
The disk stocker 2 is once moved to a position slightly in the middle of the left side of the disk stocker 2 and then returned to the original position.

(H. Operation) [FIG. 1, FIG. 3, FIG. 7, FIG. 9, FIG.
FIG. 16, FIG. 16 (B), FIG. 16 (C), FIG. 18 (B), FIG.
(C), FIG. 19, FIG. 20] Then, the optical disk player 1 configured as described above stores and removes the optical disk 3 or 4 from the disk stocker 2, takes it into and out of the outer casing, and furthermore, plays back the reproduction unit 33. For example, the operation such as reproduction is performed as follows.

(H-1. Storage of optical disk in disk stocker)
[FIG. 1, FIG. 7, FIG. 15, FIG. 16 (B), FIG. 16 (C), FIG. 20] As described above, the large disk 3 and the small disk 4 Can be stored up to five each. This storage is a disk entrance
The disc transport unit 49 holds the optical disc 3 or 4 inserted into the outer casing 40 from 42 and moves it to a position facing an empty disc storage chamber corresponding to the size of the optical disc, and moves the optical disc to the disc storage chamber. This is done by sending it to

That is, when an instruction to perform storing of the disc from the outside outer casing 40 to the disk stocker 2 is made, firstly, is moving cam slider 57 and 58 to the B ₁ floor position (see FIG. 1).
In this state, the disk transport unit 49 is at the top floor position, and the rotating chassis 51 is at the stocker-facing position, respectively.
Further, the switching slider 112 is at the second position (the first position).
6 (see FIG. 6 (B)), the frico gear 109 is
With the tooth portion 81a. From this state, the motor 96 rotates forward to move the rotating chassis 51 to the entrance / exit position (see FIG. 15). As a result, the disk insertion port 54 of the disk transport unit 49 faces the disk entrance 42. Next, the cam sliders 57, 58 are moved to the _second floor position B (see FIG. 7). At this time, the pressing end face 57c of the front cam slider 57 presses the pressed portion 44c of the opening / closing slider 44 to the left. To move it to the leftmost position. Thereby, the shutter 43 is moved to the open position, and the disk entrance 42 is opened. In this state, since the switching slider 112 has come to the third position, the friction gear 109
Is meshed with the gear portion 102a of the drive pulley 102 (the 16th
FIG. (C)).

Then, the desired optical disk 3 or 4 is inserted into the disk entrance
When the optical disc is inserted into the outer casing 40 from the disc 42 (see FIG. 15), the optical disc is inserted into the disc insertion slot 54 of the disc transport section 49.
5, 125 are moved to the open position, and an insertion detection signal is output from the trigger switch 130, whereby the motor 96 rotates in the reverse direction to rotate the drawing roller 55 in the drawing direction. As a result, the optical disk is held by the disk transport unit 49, and the type of the optical disk as the large-size disk 3 or the small-size disk 4 is detected by the pull-in detection sensors 131 and 132.

When the pull-in of the optical disk 3 or 4 has been completed, returns the switching slider 112 to the second position by moving the cam slider 57 and 58 to the B ₁ floor position, therefore, the teeth portion 81a of Furikogiya 109 rotates chassis 51 And then the motor 9
6 is reversed to move the rotating chassis 51 to the stocker-facing position.

At this time, the pressing end face 57 of the front cam slider 57
Since c escapes to the right, the opening / closing slider 44 is returned to the right end position by the pulling force of the tension spring 46, whereby the shutter 43 is moved to the closing position and the disk entrance 42 is closed.

From this state, the disk transport unit 49 is moved to a floor facing an empty disk storage room corresponding to the size of the optical disk held therein. This move is a cam slider 5
7 and 58 are disc transport units 49 of the 10th floor position from the 1st floor position
Is moved to a position corresponding to the floor to be moved.

Here, since the switching slider 112 has been moved to the first position, the frico gear 109 is engaged with the gear portion 102a of the drive pulley 102, whereby the pull-in roller 55 can be rotated.

The detection of which disk storage room is currently empty is performed prior to other operations, for example, by turning on the power. This detection is performed by moving the disk transport unit 49 from the first floor to the tenth floor, thereby detecting the presence or absence of the disk presence sensor 13.
5 is performed by detecting the positions of the stock detection levers 29, 29,..., And the detection result is stored by the storage means.

Thus, the disk transport unit 49 is moved to the floor facing the empty disk storage room.

Then, when the disk transport section 49 comes to a predetermined floor, the disk insertion port 54 is opposed to the disk storage chamber, and the motor 96 rotates forward to rotate the draw-in roller 55 in the sending direction. The optical disk 3 or 4 is sent out and inserted into the disk storage chamber approximately two-thirds for the large-sized disk 3 and approximately half for the small-sized disk 4 (FIGS. 20A and 20B). ) Is indicated by a two-dot chain line).

At this time, since the optical disk being sent once presses the pressed pins 127, 127 of the entrance-side opening / closing arms 125, 125, the opening / closing arms 125, 125 once move in the opening direction and return to the initial position. Then, two different signals are sequentially output from the trigger switch 130.

Then, when the above signal is output, the rotation of the motor 96 is stopped and the rotation of the pull-in roller 55 is stopped, and then the motor 148 is rotated in the reverse direction.
Is reciprocated once.

Therefore, as shown in FIG. 20, the push-in pin 144 of the return arm 142 is partially inserted into the disc storage chamber and abuts against the outer peripheral edge of the optical disc from substantially diagonally rearward left to press it. Is further pushed into the disk storage chamber, and when the push pin 144 comes to the right end of the movement stroke, as shown by the dashed line in FIGS. 20 (A) and (B), the disk is stored in the disk storage chamber. Is completed.

At this time, the pushing arm 20 or 21 corresponding to the disk storage chamber is moved to the storage completion position, and by this movement, the stock detection lever 29 corresponding to the optical disk storage chamber is moved to the storage position. Be moved.

Thus, the optical disk is stored in the disk storage room.

(H-2. Removal of optical disk from disk stocker)
[FIG. 18 (B), FIG. 19] When the optical disk housed in the disk stocker 2 is taken out to the disk transport unit 49 as described above, the cam slider 58 moves and the disk transport unit 49 is designated. The optical disk 3 or 4 (hereinafter, referred to as “designated disk”) is moved to the floor corresponding to the disk storage room in which the optical disk is stored.

Then, when the disk transport unit 49 reaches a predetermined floor, the motor 148 rotates forward and the delivery arm 137 reciprocates once. As a result, the pushing pin 139 of the delivery arm 137 moves the pushing arm pushing lever 133 to the right as shown in FIG. Thereby, the pressing piece 1 of the pushing arm pressing lever 133 is
33b abuts against the extruded pin 23 or 26 of the extruding arm 20 or 21 corresponding to the disk storage chamber and presses it to the right, so that the extruding arm 20 or 21 is moved to the extrusion completion position, and As a result, the designated disk is pushed out of the disk storage chamber and inserted into the disk insertion port 54 of the disk transport unit 49 (in a state shown by a two-dot chain line in FIG. 19), and then the drawing roller 55 is rotated in the drawing direction and The optical disk is pulled in to the pull-in completed position (see FIG. 18 (B)).

At this time, the stock detection lever 29 corresponding to the disk storage chamber is moved to the non-storage position by the elastic force of the coil spring 32.

Then, the specified optical disk is
Is taken out.

(H-3. Chucking and reproduction) [FIG. 3, FIG. 9, FIG.
18 (C)] Chucking and reproduction of the optical disk 3 or 4 from / to the turntable 34 are performed as follows.

The chucking is performed by moving the cam sliders 57 and 58 to the eleventh floor position and moving the disk transport unit 49 to the chucking position.

When the designated disc is to be reproduced, the disc carrier 49 is moved to the chucking position following the completion of the operation of taking out the designated disc to the disc carrier 49, and the optical disc inserted from outside the outer casing 40. In the case of immediately reproducing 3 or 4 (hereinafter referred to as an “external disk”), a series of operations of pulling the optical disk 3 or 4 into the disk transport unit 49 and moving the rotating chassis 51 to the position facing the stocker is completed. Subsequently, the disk transport unit 49 is moved to the chucking position.

Immediately before the disk transport unit 49 reaches the chucking position, the pressed projections 86 of the roller support arms 86 and 87
a, 87a are brought into contact with the upper surfaces of the protrusions 157, 157 (see FIGS. 3 and 9) protruding from the front and rear sides of the upper surface 18 of the main chassis 17, whereby the pressed protrusion 86a , 87a are pressed relatively upward, so that the roller support arm 86,
The lever 87 is rotated clockwise as viewed from the front as shown in FIG. 18 (C). At substantially the same time, the positioning release lever provided on the other leg 79 of the rotating chassis 51
One rotation end of 158 (see FIG. 9) is relatively pressed by a protrusion 159 (see FIGS. 3 and 9) protruding from the rear side of the upper surface 18 of the main chassis 17 to rotate. Moved to release the positioning release lever 158 from the interlocking arm 129.
Is rotated counterclockwise as viewed from above. As a result, the rear opening / closing arms 126 are further moved to the open position, and the positioning pins 128, 128 are laterally separated from the outer peripheral edge of the optical disc.

Therefore, when the disk transport unit 49 comes to the chucking position, both the pull-in roller 55 that has been in elastic contact with the optical disk from below and the positioning pins 128, 128 that have been in elastic contact with the outer peripheral edge of the optical disk are both separated from the optical disk. Accordingly, the optical disk is placed on the turntable 34 (see FIG. 18 (C)).

Further, substantially at the same time when the disk transport section 49 reaches the chucking position, the lower end of the abutting piece 117e of the plate holding plate 117 projects at the center of the left end of the upper surface 18 of the main chassis 17 (see FIG. 3 and 9), and is pressed relatively upward, whereby the plate holding plate 117 is rotated clockwise as viewed from the front side (see FIG. 3 and FIG. 9).
(See FIG. 8 (C)).

Thus, the chucking plate 115 is magnetically attracted to the turntable 34 with the optical disk interposed therebetween.

At this time, the centering guide 34a of the turntable 34 is relatively inserted into the center holes 3a and 4a of the optical disc 3 or 4, whereby the axis of the optical disc 3 or 4 is aligned with the turntable 34.

Thus, the designated disk or the external disk is chucked on the turntable 34, the optical disk is rotated from this state, and the reproduction is performed while the optical pickup 36 moves in the radial direction of the optical disk.

(H-4. Other operations) When a command to end the reproduction is issued, the disc transport unit 49
Is moved at least to the floor above the chucking position. Accordingly, the pressing of the projections 157, 157 of the main chassis 17 on the roller support arms 86, 87, the pressing of the projection 159 on the positioning release lever 158, and the pressing of the projection 160 on the plate holding plate 117 are all released. The chucking plate 115 is pressed against the insertion guide plate 52 by the plate holding plate 117, and the pull-in roller 55 is elastically contacted with the insertion guide plate 52 with the optical disc interposed therebetween, and the positioning pin 12
8 and 128 are resiliently contacted with the outer peripheral edge of the optical disk, whereby the optical disk is again held by the disk transport unit 49.

When returning the designated disk to the original disk storage room, the disk transport unit 49 is moved to the floor opposite to the disk storage room, and when storing an external disk in the disk stocker, the disk transport unit 49 is moved to the floor. Is moved to the floor corresponding to the empty disk storage room according to the size of
The movement or the like of 142 is performed as described above, and the optical disk is stored in the disk storage room.

When the reproduced external disk is not stored in the disk stocker 2 or when the designated disk is taken out of the outer casing 40, the disk transport unit 49 comes to the top floor position, and the rotating chassis 51 is moved to the entrance / exit position, The optical disk is sent out of the outer casing 40 through the disk entrance 42.

(G. Effects of the Invention) As is clear from the above description, the disc reproducing apparatus of the present invention comprises a disc entrance and exit provided in a casing for inserting and removing a single recording medium disc, A disk storage portion that is disposed inside the body and that can store a plurality of recording medium disks inserted through the disk entrance and exits freely, and reproduces signals recorded on the recording medium disk in which the recording medium disk is detachably mounted. A reproducing unit for performing, a disk transport unit for selectively transporting a recording medium disk across a disk entrance and a disk storage unit and a reproducing unit, having a disk holding unit in which a recording medium disk is held so that it can be freely inserted and removed, Along a direction substantially perpendicular to the transport direction when transporting the recording medium disk between the disk entrance and the disk transport means, Wherein the delivery of the recording medium disk with the disk conveying means and the disc storage portion has to be performed.

Therefore, in the disk reproducing apparatus of the present invention, the recording medium disk stored in the disk storage section can be transported to the reproduction section, and the recording medium disk not stored in the disk storage section can be moved from outside the housing. Since it is possible to transport the recording medium disk stored in the disk storage unit to the outside of the housing, it is possible to transport the recording medium disk stored in the disk storage unit, remove or replace the storage medium disk stored in the disk storage unit, or transfer the disk to the disk storage unit. Additional storage and the like can be performed without removing the disk storage unit from the housing, and even when all the disk storage rooms of the disk storage unit are occupied, it is possible to reproduce still another recording medium disk. The handling can be made extremely easy.

Further, the transfer of the recording medium disk between the disk transport means and the disk storage section is performed along a direction substantially perpendicular to the transport direction when the recording medium disk is transported between the disk entrance and the disk transport means. (In the above-described embodiment, the disc entrance and exit for inserting and removing the recording medium disc between the outside of the housing and the disc transport means and one end of a plurality of disc storage chambers of the disc storage section are in the same plane. And the direction of the disk holding portion of the disk transport means can be selectively switched between a direction facing the disk storage chamber and a direction facing the disk entrance / outlet.) It is not necessary to increase the moving range of the means.

In such a configuration, a roller for pulling in the recording medium disk from the disk entrance to the disk transport unit and a roller for moving the recording medium disk between the disk transport unit and the disk storage unit are also used. Thus, cost can be reduced.

Also, a disc diameter discriminating means for discriminating the disc diameter of the recording medium disc inserted from the disc entrance / exit is provided, and the recording medium disc is conveyed to a predetermined position in the disc storage unit according to the disc diameter. ,
It is possible to deal with various recording medium disks having different disk diameters.

Furthermore, when a recording medium disk is inserted from the disk entrance when the number of recording medium disks that can be stored in the disk storage unit is stored, the recording medium disk is directly transferred to the reproduction unit by the disk transport unit. By being configured to be conveyed, the number of recording medium disks that can be stored in the disk reproducing device can be set to “the number of disks that can be stored in the disk storage unit + 1”.

In the above embodiment, the disk playback apparatus of the present invention is applied to an optical disk player. However, the application range of the disk playback apparatus of the present invention is not limited to such an example. The present invention can be applied to various types of disc changers of the autochanger type that use.

Further, in the above-described embodiment, the disk storage portion is fixedly provided in the housing.
The disk storage section can be detachably stored in the housing, and it is up to the user to store or replace the recording medium disk in the disk storage section without removing the disk storage section from the housing or to remove the disk storage section. It is also conceivable to leave it to usability each time.

[Brief description of the drawings]

The drawings show an embodiment in which the disk reproducing apparatus of the present invention is applied to an optical disk player. FIG. 1 is a partially cutaway vertical vertical sectional view, and FIG. FIG. 3 is a perspective view showing a chassis part, a reproducing part, a cam slider and a disk stocker, and FIG. 4 is a IV-IV line of FIG. 2 of the disk stocker in which no optical disk is stored. 5 is an exploded perspective view of a shelf block of the disk stocker, FIG. 6 is a perspective view of the disk shelf of the disk stocker as viewed from below, and FIG. 7 is a state in which the disk entrance is open. FIG. 8 (A) is an enlarged vertical sectional view of a disk entrance opening / closing mechanism in a closed state, and FIG.
FIG. (B) is an enlarged vertical sectional view of the disk entrance opening / closing mechanism in an open state, FIG. 9 is an enlarged sectional view of a main part along line IX-IX in FIG. 2, and FIG. 10 is a main part of a disk transport unit. FIG. 11 is an enlarged front view of the cam slider, FIG. 12 is a cross-sectional view of a main part along line XII-XII in FIG. 1, and FIG. 13 is a disk transport unit excluding the elevator. FIG. 14 is a horizontal cross-sectional view of a disk transport unit, FIG. 15 is a horizontal cross-sectional view of a main part showing a state in which a rotating chassis is at a position facing a doorway, and FIG. 16 is an elevator. FIG. 17 (A) is an enlarged bottom view of the main part showing the movement of the drive mechanism provided in FIG. 17 in order from (A) to (C). FIG. 17 (B) is a schematic horizontal cross-sectional view for explanation, when a small-size disc is inserted. FIG. 18 is a schematic horizontal cross-sectional view for explaining the operation of the disc positioning mechanism of FIG. FIG. 19 (A) is a horizontal sectional view of a main part for explaining the pushing operation of the large-size disk from the disk stocker, and FIG. FIG. 20 (A) is a horizontal cross-sectional view of a main part for explaining an operation of storing a large-sized disk in the disk stocker, and FIG. (B) is a horizontal sectional view of a main part for describing an operation of storing a small-sized disk in a disk stocker. DESCRIPTION OF SYMBOLS 1... Disk playback device 2... Disk storage unit 3 4... Recording medium disk 33... Playback unit 40. , 52, 55… disk holder, 55… roller, 131, 132…
… Disc diameter discriminating means

Claims (4)

(57) [Claims] 1. A disk entrance provided in a housing for inserting and removing a single recording medium disk, and a plurality of recording medium disks arranged inside the housing and inserted from the disk entrance. A recording / reproducing section for removably mounting the recording medium disk and reproducing a signal recorded on the recording medium disk; and a recording / reproducing section for holding the recording medium disk freely. And a disk transport means for selectively transporting a recording medium disk across the disk entrance, the disk storage section, and the reproduction section, between the disk entrance and the disk transport means. Along the direction substantially perpendicular to the transport direction when transporting the recording medium disk, the disk transport means and the A recording / reproducing apparatus wherein a recording medium disk is transferred to and from a disk storage unit. And a roller for moving the recording medium disk between the disk conveying means and the disk storage section, and a roller for drawing the recording medium disk from the disk entrance into the disk conveying means. 2. The disc reproducing apparatus according to claim 1, wherein: A disc diameter discriminating means for discriminating a disc diameter of a recording medium disc inserted from a disc entrance / exit, and a disc storage portion predetermined according to the disc diameter discriminated by said disc diameter discriminating means. 2. The disk reproducing apparatus according to claim 1, wherein the recording medium disk is transported to the position by the disk transport means. 4. When a recording medium disk is further inserted from the disk entrance when a sufficient number of recording medium disks can be stored in the disk storage section, the recording medium disk is transferred to the reproducing section by the disk transport means. The disc reproducing apparatus according to claim 1, wherein the disc reproducing apparatus is transported.