JP2002008291A - Disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure, and to detect a first disk having an outer diameter of 12 cmϕ and a second disk having an outer diameter of 8 cmϕ. SOLUTION: Abutting members 776 and 777 are attached to each of one end parts of a pair of arms 774 and 775, to which a spring force is applied by an arm spring 783 and, a disk inserted and conveyed or ejected and conveyed by an operation piece 781 provided in any of the other end parts of the arms 774 and 775, is detected by the logical combination of first and second switches SW1 and SW2. Further, in the state of being loaded on a table for reproducing/ recording a disk, the presence of the disk is detected by an optical third detection switch SW3, and thus the loaded disk is temporarily placed in an ejecting and held state during power recovery.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital video disc or a digital versatile disc (abbreviated as DV).
D) and a disk device that performs at least one of reproduction and recording of a disk such as an optical disk or a magneto-optical disk which is a disk-shaped recording medium such as a compact disk (CD).

[0002]

2. Description of the Related Art The outer diameter of a DVD is 12 cm.
D has an outer diameter of 12 cmφ and 8 cmφ. In the prior art, in order to detect these types of outer diameters, three or more optical detection switches are arranged so as to be shifted in the width direction of the conveyance path for inserting and discharging the disc and in the inserting direction. The type of the disk is detected by a logical combination of these relatively many detection switches.
According to the type of the disk, the disks that have been playing or recording are set in a discharge holding state in which the disks partially protrude from the insertion / ejection port of the disk device.

In the prior art, a relatively large number of detection switches are used to detect the type of a disk.
It must be placed in a precise predetermined position for discharge, which complicates the configuration, creates a problem of space arrangement with other components, and complicates the configuration.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a disk drive which has a simple structure for detecting the type of disk and is easy to manufacture.

[0005]

According to the present invention, there are provided (a) a substrate 5;
19; (b) an optical pickup 511 for reproducing or recording a disc; and (c) a moving means 522 for moving the optical pickup in a predetermined linear moving direction of the base.
(D) a table 508 on which a disk is mounted,
(E) a disk transport means 673 for inserting and transporting the disk directly above the table, and discharging and transporting the disk immediately above the table; (f) clamping means 675 for mounting the inserted disk on the table; Lifting and lowering means 676, which lowers the inserted and conveyed disk together with the clamping means 675 and mounts it on the table, or ascends so as to release the mounting of the disk; A pair of abutting members 776, 777 abutting on the part, and (i) a pair of arms 774, 7
75, each arm is provided on the base body 519, 837 so as to be angularly displaceable, and one end of each arm is provided with a contact member 77.
6,777 is provided, the other end of one arm 774 has an elongated hole 778 formed in a substantially elongated shape substantially perpendicular to the axis of angular displacement of the one arm, and the other end of the other arm 775 is provided. An arm having a convex portion 779 fitted to the elongated hole, (j) an arm spring 783 for applying a spring force to the arm in a direction in which the one end portion approaches, and (k) any one of the pair of arms 775 Operating piece 78 provided at the other end of the
1, and (l) a first disk having a predetermined first outer diameter and a second disk having a predetermined second outer diameter smaller than the first outer diameter. When the outer peripheral portions of the first and second disks come into contact with each other, the operating piece 7
81, a first detection switch SW1 whose switching state changes according to 81, (m) a second detection switch SW2 whose switching state changes when the outer peripheral portion of the first disk comes into contact with the contact member, and (n) first and second switches. Processing means for detecting the type of disk to be inserted / ejected based on a logical combination of the switching states of the second detection switches SW1 and SW2.

According to the present invention, DVDs or CDs and other types of discs 509 and 510 are inserted and conveyed by the disc conveying means 673 and brought directly above the table.
When the disk 75 is lowered, the disk 509 is mounted on the table 508 and mounted. The optical pickup 511 reproduces or records data on the disk while the table is driven to rotate around the rotation axis by the rotation drive source 506.

The outer peripheral portion of the disk inserted and transported by the disk transport means abuts on contact members 776 and 777 provided at one end of a pair of arms 774 and 775, respectively. It is angularly displaced against the spring force of 783. When the disk to be inserted / ejected by this is the first disk having an outer diameter of, for example, 12 cmφ, the first and second detection switches SW
1 and SW2 are changed to an on / off switching state by an operating piece 781 provided at the other end of the arm 775. When the inserted / ejected disk is, for example, a second disk having an outer diameter of 8 cmφ, the switching state of only the first detection switch SW1 changes. Thus, the type of the disk can be detected by the processing means based on the logical combination of the switching states of the first and second detection switches SW1 and SW2.

[0008] The present invention also provides (a) a substrate 519;
(B) an optical pickup 511 for reproducing or recording a disk, and (c) a moving means 522 for moving the optical pickup in a predetermined linear moving direction of the substrate.
(D) a table 508 on which a disk is mounted, and (e) a disk transport means 673 for inserting and transporting the disk directly above the table and discharging and transporting the disk immediately above this table.
(F) clamp means 675 for mounting the inserted disk on the table; and (g) the inserted and conveyed disk is lowered together with the clamp means 675 and mounted on the table, or the disk is released. (H) a pair of abutting members 77 abutting on the outer peripheral portion of the disk to be inserted, transported and ejected
6,777 and (i) a pair of arms 774,775, each of which is provided on the base body 519,837 so as to be angularly displaceable, and one end of each arm is provided with a contact member 776,77.
7 is provided, the other end of one arm 774 has an elongated hole 778 formed to be elongated substantially perpendicular to the axis of angular displacement of the one arm, and the other end of the other arm 775 is
An arm having a convex portion 779 fitted to the long hole;
(J) an arm spring 783 that applies a spring force to the arm in a direction in which the one end approaches, and (k) an operating piece 781 provided at the other end of any one of the pair of arms 775.
(1) Of the first disk having a predetermined first outer diameter and the second disk having a predetermined second outer diameter smaller than the first outer diameter, the first and second disks have a contact member. 2
The outer peripheral portion of the disk comes into contact with the operating piece 781
A first detection switch SW1 whose switching state is changed by the first detection switch; (m) a second detection switch SW2 whose switching state is changed by the outer peripheral portion of the first disk being in contact with the contact member; Detecting the first and second disks during reproduction or recording of the two disks,
A third detection switch SW3 that does not detect the first and second disks while the first and second disks are ejected and held,
(O) First to third detection switches SW1, SW2, SW3
Insertion / depending on the logical combination of the switching states of
Processing means for detecting the type of disc to be ejected.

According to the present invention, in addition to the above configuration, a third detection switch SW3 is further provided, and the third detection switch SW3 is mounted on the table when the disk is reproduced or recorded. In the state, the existence of the disk is detected. Therefore, at the time of reproduction / recording of the disk device, when the power supply is cut off and thereafter the power supply is restored, whether or not the disk is mounted on the table in the disk device is determined by the switching state of the third detection switch SW3. You can judge. In this way, when the power is restored, if the disk is mounted on the table, the disk is temporarily set in the discharge holding state, and if the disk is not mounted, useless discharging operation of the disk is not performed.

Further, the first and second disks are set in a state of being ejected and held by the disk transport means. That is, when the operator slightly pushes the disks into the disk device, the disks are inserted and transported by the disk transport means. Can be done.

The present invention also provides a first detection switch SW1
Detects the first disk while the disk is ejected and held,
The second disk is not detected in the ejection holding state of the second disk, and the second detection switch SW2 does not detect the first and second disks in the ejection holding state of the first and second disks.

Further, according to the present invention, when the third detection switch SW3 is provided, the first detection switch SW1 detects the first and second disks in a state where the disks are ejected and held, and the second and third detection switches SW2 and SW3. Is characterized in that the first and second disks are not detected in a state where the disks are ejected and held.

According to the present invention, the first and second detection switches SW1 and SW2 or the first to third detection switches SW
According to the logical combination of SW1, SW2, and SW3, it is possible to detect the type of the first or second disc in the discharge holding state which is different from the other, and to check whether the disc is in the discharge holding state or the ejection state. Can be determined.

In addition, when the operator presses the first or second discs having different outer diameters in the discharge holding state, the first and second detection switches SW1 and SW2 or the first to third detection switches. It is easily possible to detect by a logical combination of SW1, SW2, and SW3, and in response to the detection result, automatically perform the insertion and conveyance by the disk conveyance means.

[0015]

FIG. 1 is a simplified plan view showing the entire structure of an embodiment of the present invention. In the disc reproducing device 501, the arrow 5
03, a DVD 504, which is a DVD,
It is inserted into the device main body 505. This disk 504
Is mounted on a table 508 which is driven to rotate about a rotation axis 507 substantially perpendicular to the plane of FIG. 1 by a rotation drive source 506 in the apparatus main body 505. Device body 505
The discs within, for example, the discs mounted on the table 508 are indicated by reference numeral 509. This disk 50
9 is an objective lens 5 provided in the optical pickup 511
The content of the recording layer of the disk 509 is read out and reproduced using the laser light from the disk 12. Optical pickup 51
1 can be moved back and forth in the movement direction 516 by the optical pickup moving means 522.

The optical axis of the objective lens 512 is on a straight line passing through the rotation axis 507 of the table 508 in the virtual plane, and the optical axis of the objective lens 512 is perpendicular to the plane of FIG. Further, in this disc reproducing apparatus 501, a disc 510, which is a CD having a smaller outer diameter than the discs 504 and 509, can be inserted and played in the same manner as the disc 504. Disks 504 and 509 are 1
It may be a DVD or CD having an outer diameter of 2 cmφ. The disk 510 may be a CD having an outer diameter of 8 cmφ.

FIG. 2 is a front view showing the upper limit position of the disk 509 when the disk 509 is viewed from the insertion / ejection port 502 of the disk reproducing apparatus 501 immediately above the table 508 with an interval, and FIG. Table 5
It is a front view showing the state where it is attached to 08 and it is in the lower limit position for reproduction. The disc 509 to be reproduced inserted from the insertion / ejection port 502 includes a transport roller 671 having a horizontal rotation axis perpendicular to the insertion direction 503, and a sliding piece 672 disposed above the transport roller 671. By the operation of the disk transport means 673, the disk 509 is inserted and transported just above the table 508 as shown in FIG. The disc 509 after reproduction is inserted into the insertion / ejection port 50.
2, the disk 509 is also at the upper limit position spaced directly above the table 508, similarly to FIG. The disk 509 is sandwiched between the sliding piece 672 on the transport roller 671 and inserted / removed as described above.
Conveyed. At the time of reproduction of the disk 509, as shown in FIG. 3, the transport roller 671 descends with a space below the disk 509, and the downward movement of the sliding piece 672 is limited. Thus, the disk 509 is mounted on the table 508. . A transport roller 671 of the disk transport means 673;
The clamp means 675 is raised to the upper limit position in FIG. 2 to release the mounting of the disk 509 on the table 508, and as shown in FIG. 3, the transport roller 671 and the clamp means 675 are moved to the lower limit position in FIG. Elevating means 676 is provided on both sides of the base 519 of the apparatus main body 505 in order to lower the disk 509 and mount the disk 509 on the table 508.

The clamp means 675 basically includes a clamp member 676 for mounting the inserted disk 509 on the table 508, a holder 678 for holding the clamp member 676, and a clamp member 676 mounted on the holder 678 to attach the clamp member 676 to the table. And a spring member 679 that resiliently presses toward 508. The clamp member 677 of the clamp means 675 is displaced up and down by the above-described elevating means 675 between the upper limit position in FIG. 2 and the lower limit position in FIG.

FIG. 4 is a simplified side view corresponding to FIG. 2 showing the upper limit position of the disk 509 of the apparatus main body 505 viewed from the right in FIG. 1, and FIG. 5 is a left side view of the apparatus main body 505 in FIG. FIG. 3 is a side view corresponding to FIG. 2 as viewed from above.
FIG. 6 is a side view corresponding to FIG. 3, showing a state where the disk 509 of the apparatus main body 505 viewed from the left in FIG. 1 is at the lower limit position. The inserted disk 509 is inserted and conveyed in the insertion direction 503 by the disk conveying means 673, lowered by the elevating means 676 together with the clamp means 675, mounted on the table 508 and mounted. With the disc 510 mounted on the table 508 in this manner, the disc 5 is
09 is reproduced or recorded. The disk 509 on the table 508 is lifted by the lifting / lowering means 676 together with the clamp means 675, and thereafter is discharged and transported by the disk transport means 673 in the discharge direction opposite to the insertion direction 503. On the base body 519, a disk detecting unit 771 is arranged in the middle of the transport path of the disk 504 between the insertion / ejection port 502 and the table 508.
This disk detecting means 771
A pair of arms 774 and 775 provided so as to be angularly displaceable around 72 and 773 are included.

The elevating means 676 is provided on the main body 505 of FIG.
And first and second moving members 791 and 792 movable in a moving direction parallel to the insertion direction 503 on the right side (a direction perpendicular to the elevating direction in FIGS. 4 to 6).
Moving member 8 on the left side of apparatus main body 505 in FIG.
32.

FIG. 7 is a plan view of one arm 774, and FIG. 8 is a front view of the arm 774 as viewed from below in FIG. One end of the arm 774 has a contact member 77
6 is fixed. The other end of the arm 774 has a pin 77
An elongated hole 778 is provided which is elongated substantially perpendicular to the second axis.

FIG. 9 is an enlarged plan view of a long hole 778 formed at the other end of the arm 774. This long hole 7
The projection 779 of the arm 775 is fitted into 78.

FIG. 10 is a plan view of the arm 775, and FIG. 11 is a front view of the arm 775 viewed from below in FIG. At one end of the arm 775, a disk 504 is attached.
The contact member 777 which is in contact with the outer peripheral portion is fixed. The above-mentioned convex portion 779 is fixed to the other end of the arm 775. Further, the arm 775 is provided with an operation piece 781.

One of the arms 774 is moved in a direction in which the arms 774 and 775 are closed by a tension spring 783 provided between the arm 774 and the base 519, that is, the contact member 77.
6,777 are applied with a spring force in the direction of approaching each other. The angular displacement of the arms 774 and 775 in the closing direction is limited by the contact portions 784 and 785 provided on the base body 519.

FIG. 12 is a plan view for explaining the operation of the disk detecting means 771. When the small-diameter disc 510 of 8 cmφ is inserted in the insertion direction 503, the contact members 776 and 777 come into contact with the outer periphery of the disc 510, and the arms 774 and 775 are angularly displaced in the opening direction 782. Accordingly, the on / off switching state of one of the two detection switches SW1 and SW2 attached to the base body 519 changes.
Thus, insertion of the disk 510 is detected. Figure 1
In 2, the disk 510 is inserted and conveyed in the insertion direction 503 in a state where the disk 510 is in contact with the contact members 776 and 777 and is centered. The centered state refers to a state in which the axis of the central hole 739 of the disk 510 and the rotation axis 507 of the table 508 are in one vertical virtual plane parallel to the insertion direction 503.

FIG. 13 shows that the disk 510 is inserted in the insertion direction 50.
FIG. 7 is a plan view showing the operation of the disc detection means 771 showing a state where the disc detection unit 771 is displaced rightward and is conveyed. Disk 5
The outer peripheral portion of 10 abuts only on one abutting member 777,
At this time, the operating piece 781 has two detection switches SW1,
The switching state of SW2 is changed.

The disk 510 has a relatively small diameter, and even in the state shown in FIG. 13, before reaching the position directly above the table 508, the axis of the disk 510 coincides with the axis 507 of the table 508 to achieve centering. As a result, the arms 774 and 775 are configured so as to be mutually angularly displaceable by the same angle symmetrically left and right in the insertion direction 503. For this purpose, the inner peripheral surface 7 which contacts the outer peripheral surface of the convex portion 779 of the long hole 778 shown in FIG.
The shapes of 86 and 787 are set, for example, by experiments. The outer peripheral surface of the convex portion 779 has a right cylindrical shape.

FIG. 14 is a plan view for explaining the operation of the disk detecting means 771 when a relatively large-diameter disk 504 is inserted and conveyed. When the disk 504 is inserted, the contact members 776, 777
And the switching state of the detection switches SW1 and SW2 changes. Thus, the disks 504, 5 to be inserted / ejected are determined by the logical combination of the switching states of the detection switches SW1, SW2 in FIGS.
10 types can be detected, and a state where a relatively small-diameter disk 510 is displaced to the left or right as shown in FIG. 13 can be detected.

FIG. 15 shows a state in which the second moving member 792 provided in the elevating means 676 is held in a rest state, which is the upper limit position where reproduction / recording of the disk 509 is not performed, and noise due to rattling is generated. FIG. 3 is an exploded perspective view showing a configuration for preventing the operation from being performed. The end 793 of the moving member 792 has both sides 794 and 795 tapered in the moving direction 796. The moving member 792 has a long and thin plate shape. Both end side portions 7 of the end portion 797 of the end portion 793
98,799 are parallel to the moving direction 796. The end 793 and the tip 797 of the moving member 792 are formed vertically symmetrically.

The holding member 801 made of synthetic resin is
Recess 8 for receiving end 793 and tip 797 of 92
02. The base 519 of the apparatus main body 505 is attached to the bottom of the housing 805 via a damper 806.
Thereby, vibration from the housing 805 to the base 519 is suppressed.

The side wall 803 and the rear wall 80 of the housing 805
4, the holding member 801 is fixed. At the side wall 803, an attachment hole 807 is formed, and cut-and-raised pieces 808 and 809 are formed, thereby forming locking portions 811 and 812. A mounting hole 813 is formed in the rear wall 804.

FIG. 16 is a front view of the holding member 801.
17 is a plan view of the holding member 801, FIG. 18 is a side view of the holding member 801, FIG. 19 is a rear view of the holding member 801, and FIG. 20 is a view taken along the line XX-XX of FIG. FIG. Referring to these drawings, the holding member 801 receives and holds the end 793 in the recess 802 at the leftmost position in FIG. 15 of the moving member 792.
In the recess 802 of the holding member 801, the first holding guide inclined surface 81 tapered in the movement direction 796 corresponding to the end 793.
4 and 815, and a direction perpendicular to the vertical direction in FIGS. 15 to 17 and the moving direction 796 (the direction perpendicular to the plane of the paper in FIGS. 16 and 17; FIGS. 18 to 2).
0), the second holding guide inclined surface 81 that is inclined
6 are formed. Further, the tip portion 79 of the moving member 792
Tip holding section 81 for fitting and holding 7
7 are first and second holding guide inclined surfaces 814 to 816
Is formed continuously.

Thus, the moving member 792 moves in the moving direction 796.
Along the left of FIGS. 15 and 16,
Both end portions 794 and 795 of the end portion 790 are held in contact with the first holding guide inclined surfaces 814 and 815 of the holding member 801, and the front end portion 797 is connected to the second holding guide inclined surface 816. Displaced along the tip end holding portion 817
It is fitted and held tightly. This moving member 792
The E-ring indicated by the reference portion 823 is engaged with guide pins 821 and 822 inserted into the guide slots 818 and 819 (see also FIG. 4 described above), and the moving member 792 is attached to the base 519.
1 to the right in FIG. In this way, the holding member 801 prevents the moving member 792 from generating noise due to rattling.

To attach the holding member 801 to the housing 805, a resilient claw member 825 is formed on the second holding guide inclined surface 816 by a U-shaped through hole 824. The claw member 825 is attached to the mounting hole 80 of the side wall 803.
7 is fitted using the elasticity of the synthetic resin.

A pair of convex portions 826 and 82 of the holding member 801
7 is locked to the locking portions 811 and 812, thereby preventing displacement from the side wall 803. Further, the convex portion 828 forming the tip holding portion 817 fits into the mounting hole 813 of the rear wall 804, thereby forming the side wall 803.
The displacement in the direction away from is prevented. The holding member 801 is further formed with raised portions 829 and 830, and
In addition to the resiliently contacting opposing inner surfaces of the cut-and-raised pieces 808 and 809 formed in No. 3, the convex portion 828 contacts the upper and lower inner surfaces of the mounting hole 813 in FIG. Thus, the holding member 801 is elastically fixed to the housing 805. The holding member 801 is made of, for example, a synthetic resin such as polycarbonate and can be manufactured by injection molding.

The tip 797 of the moving member 792 is
2, an inclined guide surface 831 connected to the second holding guide inclined surface 816 of the recess 802 is formed. Thereby, when the moving member 792 moves in the moving direction 796, it is smoothly guided to the recess 802. The holding member 801 is formed to be plane-symmetric with respect to a symmetry plane along the movement direction 796, whereby the movement member 792 and the base 5
The same can be used in connection with another moving member 832 arranged on the opposite side (left side in FIG. 1) of the nineteen moving members 792. The moving member 832 also constitutes a part of the elevating means 676 which functions to elevate and lower the clamp means 675, and its end is configured similarly to the moving member 792.

FIG. 21 is a plan view of the moving means 835 constituting the elevating means 676, and FIG. 22 is a bottom view of the moving means 835. The elevating means 676 is provided with these moving means 83
5 in addition to the first and second moving members 791, 7 described above.
92 including a lifting operation means 836 including

FIG. 23 is a front view of the moving means 835 shown in FIGS. 21 and 22, and FIG.
22 is a right side view of FIG. 21 as viewed from the right. The moving means 835 is disposed further downstream than the table 508 in the insertion direction 503. A pair of arms 841 and 842 to which a pair of abutting pieces 838 and 839 are attached are attached to a mounting body 837 of the moving means 835 by pins 843 and 84, respectively.
4 is provided so as to be angularly displaceable. Mounting body 837
Is fixed to the base 519. Each of the arms 842 is moved by a tension spring 845 serving as an arm spring.
A spring force is applied in a direction in which the contact pieces 838 and 839 of the first and second 842 approach and close. At the other end of the arm 842,
A slot 846 extending approximately over the radial extension of the pin 844
The protrusion 847 formed on the other end of the arm 841 fits and interlocks. The slot 846 extends elongated substantially perpendicular to the axis of the pin 844. In another embodiment of the present invention,
A long hole 846 may be formed in the arm 841, and a protrusion 847 may be formed in the arm 842. Each arm 841,
The displacement of the one end of 842 in the direction of approach to each other is
37 are limited by raised stops 848, 849.

FIG. 25 is a plan view of the contact piece 838, and FIG. 26 is a right side view of the contact piece 838 in FIG.
FIG. 27 is a rear view of the contact piece 838 as viewed from above in FIG. The contact piece 838 is inserted into the disk 509 to be conveyed.
Abutment portion 851 abutting on the outer peripheral portion of
Operating part 852 fixed to the abutment, contact part 851 and operating part 8
52 and a lock portion 853 fixed to the base member 52 and are integrally formed of a synthetic resin. The mounting hole 854 of the contact portion 851 has a pin 8 fixed to one end of the arm 841.
The contact portion 851 can be angularly displaced around the axis of the pin 855. A spring receiving portion 856 is formed in the lock portion 853, and a lower end of one end of a torsion spring 857 which is a contact piece spring surrounding the pin 855 is received. The other end of the torsion spring 857 is locked to the arm 841, as indicated by reference numeral 858. Thus, the contact piece 838 is given a spring force in the direction 859 shown in FIG. 25 by the action of the torsion spring 857. The direction 859 of the spring force is a direction in which the operating portion 852 approaches the disk 509. The spring force of the torsion spring 857 is smaller than the spring force of the tension spring 845.

A separation portion 891 corresponding to the outer peripheral portion of the disk 509b mounted on the table 508 rather than the contact portion 851 in FIG. 28 is formed farther away from the disk 509b. Reference numeral 509a indicates an upper limit position at the time of insertion / ejection of the disk 509, and reference numeral 509b indicates a state where the disk 509 is mounted on the table 508.
This state is the same for the small-diameter disk 510. In particular, in the present invention, an inverted truncated cone-shaped continuous portion 892 that smoothly extends from the separated portion 891 to the contact portion 851 is formed. Therefore, when the disk 509b mounted on the table 508 in FIG. 28 is lifted, the disk 509b can move so as to smoothly come into contact with the contact portion 851 via the continuous portion 892 from the separation portion 891. Therefore, there is no possibility that the disk 509b is caught between the separating portion 891 and the contact portion 851, and the ascending drive is performed smoothly.

A first guide 861 for guiding the lock 853 is formed on the attachment 837 fixed to the base 519. The first guide portion 861 is constituted by a through hole formed in the attachment body 837. First guide 861
Is a first lock portion guide portion 862 and a second lock portion guide portion 8 connected to the first lock portion guide portion 862.
63 and a locking portion 864 connected to the first locking portion guide portion 862 on the side opposite to the second locking portion guide portion 863.
And When the disk 509 is located on the upstream side of the table 508 in the insertion direction 503 from the position immediately above the table 508, the guide portion 862 for the first lock portion
7 and is guided away from the outer peripheral portion of the disk 509 against the spring force of the disk 7. The guide portion 863 for the second lock portion is
When the disk 509 is located directly above the table 508, the locking portion 853 is in the direction 859 of the spring force
(See FIG. 25) to be locked. When the lock portion 853 is present in the second lock portion guide portion 863, the end of the torsion spring 857 is separated from the lock portion 853, and thus the spring force of the screw spring 857 is released.

The combination of the arm 382 and the contact piece 839 is the same as the combination of the arm 841 and the contact piece 838, and each of these combinations is shown in FIG.
22 are symmetrical with respect to a plane of symmetry perpendicular to the plane of FIG. 22, and are denoted by the same reference numerals.

FIG. 29 shows that the disk 509 is inserted in the insertion direction 50.
FIG. 9 is a plan view for explaining an operation of a moving unit 835 in a state where the moving unit 835 is inserted into and conveyed to the position 3. A second guide 866 is formed on the side of the driving piece 865 of the first moving member 791 provided in the elevating operation means 836. This second guide part 8
66 has a guide portion 867 for the first operating portion and a guide portion 868 for the second operating portion. Guide portion 86 for first operating portion
The operating portion 852 is arranged so that the lock portion 853 is locked to the second lock portion guide portion 863 when the disk 509 is directly above the table 508 as shown by the imaginary line in FIG.
To guide and hold. The guide portion 867 for the first operating portion is parallel to the insertion direction 503 and the movement direction 796.

When the disk 509 is located on the upstream side of the table 508 in the insertion direction 503 (downward in FIG. 29) as shown by reference numeral 509c in FIG. Guide part 867 for first operating part
The lock portion 853 is connected to the second lock portion guide portion 8.
The operation unit 852 is guided so as to be separated from the 63. The second operating portion guide portion 868 is inclined in a direction away from the disk 509 toward the upstream side (downward in FIG. 29) in the insertion direction 503.

A lever 871 is provided on the arm 841 so as to be angularly displaceable by a pin 869, as clearly shown in FIG. One end 87 of this lever 871
2, the outer peripheral portion of the disk 509 abuts on the upstream side of the insertion direction 503 of the table 508 and in the vicinity immediately above the table 508, and the disk 509 is angularly driven in the direction 873 by the insertion and transportation by the disk transportation means 673. Is done. As a result, the other end 874 of the lever 871
The driving pin 875 protruding from the moving member 791 moves the moving member 791 in the moving direction 796 downward in FIG. The drive piece 865 of the moving member 791 is connected to the horizontal hole 876 to
A vertical hole 877 extending toward the downstream side in the insertion direction 503 is formed closer to the position.

FIG. 30 is a sectional view of the lever 871 and its vicinity. The one end 872 of the lever 871 extends vertically corresponding to an upper limit position 509a when the disc 509 is inserted and ejected, and a lower limit position 509b which is a mounted state on the table 508 during reproduction / recording.

FIG. 31 is a plan view of the first moving member 791, and FIG. 32 is a side view of the first moving member 791.
The first moving member 791 is provided with a spring force toward the downstream side in the insertion direction 503 by a spring 878 provided between the first moving member 791 and the base 519. The first moving member 791 also has a vertical guide hole 881 parallel to the insertion direction 503 and a vertical guide hole 81.
81 has an interlocking portion 883 in which a lateral guide hole 882 is formed so as to be continuous with the downstream end of the insertion direction 503.

The first operating member 791 has a moving direction 796
Are formed. Guide pins 821 and 822 attached to the base 519 are inserted into these guide slots 895 and 896, respectively. Thus, the movement of the first moving member 791 in the moving direction 796 is stably performed, and the end position on the upstream side in the insertion direction 503 by the spring 878 is set by the ends 897 and 898.

FIG. 33 is a view showing a vertical guide hole 881 and a horizontal guide hole 882 in the interlocking portion 883. A rack 884 is fixed to the interlocking portion 883. Rack 8
84 can engage with a pinion 885 provided on the base body 519.

FIG. 34 is a simplified plan view for explaining the operation of the moving means 835 of the elevating means 676 when the small-diameter disk 510 is inserted. When the disk 510 is inserted in the insertion direction 503 and is conveyed, and further moves from the state of the virtual line as shown by the solid line, immediately above the table 508, the small-diameter disk 5
10 contacts the contact portion 851 of the contact piece 838 and does not contact the operating portion 852.

The disk 510 is inserted and conveyed by the disk conveying means 673 with one end 872 of the lever 871 being pressed as indicated by an arrow 886. At this time, the levers 841 and 842 are not angularly displaced around the pins 843 and 844, remain in contact with the stoppers 848 and 849 as described with reference to FIG. , Remain locked to the locking portion 864.

When the lever 871 is angularly displaced around the pin 869 in the clockwise direction in FIG. 34, the driving pin 875 of the lever 871 causes the lateral hole 876 to move through the arrow 887.
Go to As a result, the rack 884
The operation for meshing with No. 5 is performed. Detection switches SW1, SW
2 detects that the disks 509 and 510 have been inserted, the pinion 885 is constantly driven to rotate, and the pinion 885 and the rack 884 are engaged with each other.
The first moving member 791 moves to the arrow 887 by the power of the pinion 885.

By the movement of the first moving member 791 in the direction of the arrow 887, the lifting / lowering operation means 836 lowers the clamp means 675 and the disk 510 on the table 508 and mounts them on the table 508. The drive pin 875 is
With the movement of the first moving member 791 in the direction of the arrow 887, the first moving member 791 moves in the vertical hole 877, and the drive pin 87 of the lever 871 is moved by the upstream end 888 of the vertical hole 877 along the arrow 887.
5 is further displaced in the direction of arrow 887, thereby causing one end 872 of lever 871 to move away from disk 510, as indicated by phantom line 889.

FIG. 35 is a simplified plan view for explaining the operation of the moving means 835 when the large-diameter disk 509 is inserted. When the disk 509 is inserted and transported by the disk transport means 673, first, the outer peripheral portion of the disk 509 contacts the operating portion 852 of the contact piece 831. This state corresponds to FIG. By further inserting the disk 509, the disk 509 angularly displaces the contact piece 838 in the counterclockwise direction in FIGS. 25A and 35 against the spring force of the torsion spring 857.

As a result, the locking portion 853 is
25, and the state shown in FIG. The outer peripheral portion of the disk 509 contacts the contact portion 851.

FIG. 36 is a diagram showing the operation of the moving means 835 when the disk 509 is further inserted in the insertion direction 503 from the state of FIG. 25 (2). Disk 5
The outer peripheral portion of the abutment 09 abuts against the abutment portion 851 of the abutment piece 838 and pushes against the spring force of the tension spring 845. This causes the arm 841 to move around the pin 843 in FIG.
6 is angularly displaced in the counterclockwise direction. The lock portion 853 is
The torsion spring 857 abuts and slides along the first lock portion guide portion 862 of the guide portion 861 with the spring force of the torsion spring 857. At this time, the operating portion 852 is moved from the outer peripheral portion of the disk 509 to
They are spaced apart as indicated by reference numeral d1 in FIG. When the disk 509 is further inserted and conveyed, the one end 872 of the lever 871 is pushed by the outer peripheral portion of the disk 509 and is angularly displaced clockwise in FIG. The disk 509 is shown in FIG.
Contact piece 83 when inserted and transported as shown in FIG.
The state of 8 is as shown in FIG.

FIG. 37 is a simplified plan view of the moving means 835 showing a state in which the disk 509 is further inserted and conveyed in the insertion direction 503 as compared with the state shown in FIG. When the disk 509 reaches just above the table 508, the drive pin 875 of the lever 871, which has been depressed and angularly displaced by the insertion and conveyance of the disk 509, moves through the horizontal hole 876 formed in the drive piece 865 of the first moving member 791. It is displaced and moved to reference numeral 887. As a result, the rack 884 has the pinion 8
This is an initial state in which engagement with the gear 85 starts. At this time, the contact piece 8
The lock portion 853 of 38 has reached the second lock portion guide portion 863 of the first guide portion 861.

FIG. 38 shows an arrow 88 when the rack 884 meshes with the pinion 885 from the state shown in FIG.
It is a figure showing the state when it moved to the direction of 7. FIG.
As shown in (1), the first moving member 791 has an arrow 88
7 in the direction of movement of the
Of the second operating portion 866 abuts on the second operating portion guide member 868 of the second guiding portion 866. As shown in FIG.
When the pinion 885 is moved from the state of FIG. 8 (1) by the power of the pinion 885 in the direction of the arrow 887 as shown in FIG. 38 (2), the operating part 852 of the contact piece 838 becomes the first operating part. Contact portion 867 for use. As a result, the lock portion 853 moves around the axis of the contact portion 851 in FIG.
It is angularly displaced clockwise in (2). Therefore, the lock portion 853 is locked by the second lock portion guide portion 863 of the first guide portion 861.

The drive pin 875 of the lever 871 is
In the state where the first moving member 791 is in the position indicated by the imaginary line 894 in FIG. 38 (2), the drive pin 875 comes into contact with the most upstream end of the vertical hole 877 in the moving direction along the arrow 887. Touch This causes the lever 871 to be angularly displaced around the pin 869 in the clockwise direction in FIG.
2 is separated from the outer peripheral portion of the disk 509. Thus, the clamping means 675 and the disk 509
The operation of the lifting / lowering operation means 836 of the disk 509 is performed.
Is mounted on the table 508.

FIG. 39 is a plan view of the second moving member 792 provided in the elevating operation means 836 constituting the elevating means 676, and FIG. 40 is a right side view of the second moving member 792. The tension spring 901 is interposed between the second moving member 792 and the base body 519, and thereby the guide elongated hole 818,
Guide pins 821, 8
22 comes into contact. An interlocking portion 902 is formed on the second moving member 792.
A guide hole 903 is formed.

The second moving member 792 is formed with an elevation drive hole 904 which is a cam hole.
4, the follower pin 905 is fitted to the clamping means 675.
Is fixed to the holder 678. Therefore, the pinion 88
When the second moving member 792 is moved in the direction of the arrow 887 by the rotation of 5, the lifting drive hole 904 moves the follower pin 905 downward as shown by the arrow 906, so that the clamp means 675 and the disk 509 are The disk 509 is moved from the upper limit position for insertion / ejection to the table 50.
8 will be lowered to the lower limit position where it will be mounted. When the second moving member 792 is moved in the opposite direction of the arrow 887 by the reverse rotation of the pinion 885, the follower pin 905 is moved.
Is displaced in the opposite direction of the arrow 906 and rises from the lower limit position to the upper limit position. Thus, the lifting drive hole 904 and the follower pin 9
05 constitutes the cam mechanism 907.

The second moving member 792 has a rack guide inclined surface 911 and a support portion 912 connected to the rack guide inclined surface 911. The rack guide inclined surface 911 is
The rack 884 has a shape approaching the pinion 885 along the moving direction of the arrow 887. The support portion 912 guides and supports a back portion 913 of the rack 884 on a side opposite to the pinion 885.

FIG. 41 shows the interlocking section 9 of the second driving member 792.
It is an enlarged plan view near 02. Guide hole 9 of interlocking section 902
03, a vertical hole portion 908, an inclined surface 909 for smoothly moving the interlocking pin 915 described later in a horizontal direction, and a horizontal hole 910 are formed continuously.

FIG. 42 shows the first and second moving members 79.
It is sectional drawing which shows 1,792, rack 884, and pinion 885. The rack 884 is fixed to the first moving member 794 by bolts 914.

FIG. 43 shows the first and second moving members 79.
FIG. 8 is a simplified plan view for explaining an operation in which a rack 884 and a pinion 885 are engaged with each other by moving 1,792. As shown in FIG. 43A, when the disc is inserted, the drive pin 875 of the lever 871 exists in the horizontal hole 876 formed in the drive piece 865 of the first moving member 791. A vertical guide hole 881 formed in the interlocking portion 883 of the first moving member 791;
An interlocking pin 915 is commonly inserted into a vertical hole 908 formed in the interlocking portion 902 of the second moving member 792. The interlocking pin 915 is erected on an interlocking member 917 provided on the base body 519 so as to be angularly displaceable about the pin 916.
An operation protrusion 918 is formed on the interlocking member 917. A clamp completion detection switch 919 is fixed to the base 519. When the clamp completion detection switch 919 detects the operation protrusion 918, the clamp 675 is at the lower limit position, and the disk 509 is mounted on the table 508.

In FIG. 43A, the lever 871 is angularly displaced by the insertion and conveyance of the disk 509 in the insertion direction 503 as described above, and the drive pin 875 moves the horizontal hole 876 of the first moving member 791 into the horizontal hole 876 in FIG. Arrow 8 below 1)
It moves in the direction indicated by 87 against the spring force of the spring 878. As a result, the interlocking pin 915 becomes
As clearly shown in FIG. 9, the first moving member 791 moves in the vertical guide hole 881 of the interlocking portion 883 as indicated by an arrow 921. While the interlocking pin 915 is moving in the vertical guide hole 881, the second moving member 792 remains stationary.

When the first moving member 791 moves in the direction of the arrow 887, the rack 884
This is the initial state shown in FIG. 43 (2) in which the operation for meshing with No. 5 is started. When the first moving member 791 is moved in the direction of the arrow 887, the end 9 of the back portion 913 of the rack 884 is moved.
24 is guided by the rack guide inclined surface 911 and is pressed toward the end 922 of the rack 884. Therefore, in an initial state where the end 922 of the rack 884 is engaged with the pinion 885, the end 922 of the rack 884 is
There is no displacement from 85 to the right in FIG. 43B, and the engagement between the rack 884 and the pinion 885 is ensured.

After the rack 884 meshes with the pinion 885, the first moving member 791 is moved in the direction of the arrow 887 by the power of the pinion 885. At this time, the interlocking pin 915 moves from the inclined surface 909 formed on the interlocking portion 902 of the second interlocking member 792 as described above with reference to FIG.
It moves in the direction indicated by the arrow 923. In this way, the interlocking pin 915 is inserted through the horizontal guide hole 882 (see FIG. 33) of the interlocking portion 883 and the horizontal hole 910 of the interlocking portion 902, and moves as shown in FIG. In this way, the back 913 of the rack 884 is
The rack 884 is received and supported by the support portion 912 connected to No. 1 to prevent the rack 884 from being displaced rightward in FIG. 43 (3) from the pinion 885.

When the first and second moving members 791 and 792 move in the directions indicated by the arrows 887 by the power of the pinion 885, the interlocking pin 915 is moved by the angular displacement of the arrow 925 of the interlocking member 917. And the horizontal hole 910 are moved in the above-mentioned arrow 923 and in the opposite direction. When the clamp state is completed, the operation protrusion 918 of the interlocking member 917 operates the clamp completion detection switch 919. By detecting the completion of clamping in this way,
The motor driving the pinion 885 is stopped. The drive of the pinion 885 is started by the detection switches SW1 and SW2 related to FIGS.
It starts by detecting 9,510.

When the disk 509 on the table 508 is ejected, the pinion 885 is rotated in reverse by the reverse rotation of the motor. Therefore, the rack 884 and the first and second moving members 791 and 792 move in the direction opposite to the arrow 887, and the clamp mechanism 675 and the disk 509 are raised by the action of the cam mechanism 907. Thus, the states shown in FIGS. 43 (2) and 43 (1) are traced in this order to return to the initial state. As a result, the drive pin 875 is moved by the horizontal hole 876 in FIG.
3 (1), the lever 871 is angularly displaced counterclockwise in FIG.
3 is pressed and displaced in the discharge direction which is the opposite direction. Disk 5
09 is ejected and conveyed by the disk conveying means 673 by reverse rotation when the conveying roller 671 is inserted.

Although the operation of the elevating means 836 has been described mainly in relation to the large-diameter disk 509,
Similar operations are performed for the small-diameter disk 510.

The moving member 832 opposite to the first and second moving members 791 and 792 moves like the second moving member 792 in conjunction with the second moving member 792. This moving member 832 is also configured similarly to the above-described end portion 793, and is provided with a cam mechanism 907. Contact piece 8
In relation to 39, another second guide portion 926 formed symmetrically with the second guide portion 866 is formed.

FIG. 44 is a block diagram showing an electrical configuration of the disk reproducing apparatus 501 according to the embodiment of the present invention shown in FIGS. The processing means 931 realized by the microcomputer includes a detection switch SW
1, SW2, and the output of the clamp completion detection switch 919. Further, an eject switch 932 operated by the operator to eject the disks 509 and 510 is provided. The processing unit 931 drives and controls the rotation drive source 506 that drives the disk 508 to rotate and the insertion / ejection drive source 933 that drives the pinion 885 included in the disk transport unit 673 including the transport roller 671 and the lifting / lowering unit 676.

FIG. 45 is a flow chart for explaining the operation of inserting and carrying the disks 509 and 510 by the disk carrying means 673, and FIG.
It is a waveform diagram for explaining insertion conveyance operation of 09,510. In step p1 in FIG.
When the discs 509 and 510 are inserted into the discharge port 502, in the next step p2, the discs 509 and 510 are inserted.
The outer peripheral portion of 510 abuts against a pair of abutting members 776 and 777, and a pair of arms 774 and 775
83 open against the spring force of the arm 775
The operating piece 781 formed in the state changes the detection switch SW1 from OFF to ON. This gives step p
In No. 3, the drive of the insertion / ejection drive source 933 is started, so that the transport roller 671 of the disk transport means 673 is driven to rotate forward in the direction in which the disks 509 and 510 are inserted and transported. In step p4, after the detection switch SW1 is turned on, the elapsed time is measured by a timer, and the time t
Is less than a predetermined time, for example, less than 4 seconds, the process proceeds to the next step p5, and it is determined whether the detection switch SW1 is turned off.

FIG. 46A shows the switching state of the detection switch SW1, and FIG. 46B shows the switching state of the detection switch SW1.
2 shows the switching state of FIG. The state of forward rotation and reverse rotation of the motor as the insertion / ejection drive source 933 is shown in FIG. The clamp completion state detected by the clamp completion detection switch 919 is shown in FIG. At time t1, the detection switch SW1 is turned on at step p2 in FIG. 45 as described above. Disk 50
Time t at which 9,510 abuts just above table 508
In 2, the detection switch SW1 returns to the off state again. When a disk 509 having an outer diameter of 12 cmφ is inserted and transported,
The detection switch SW2 is turned on at time t1a,
The state returns to the off state at time t1b. The fact that the detection switch SW1 is turned off at the time t2 indicates that the state shown in FIG.
At step p5.

In step p6, if the elapsed time t detected by the timer is less than 4 seconds, step p
Then, it is determined whether or not the clamp operation has been completed by turning on the clamp completion detection switch 919. When it is determined that the clamp state has been completed, in the next step p8, the rotational drive source 506 is rotationally driven, and the rotational drive of the disks 509 and 510 is started.
Such detection of the clamp completion operation of the clamp completion detection switch 919 is performed at time t3 in FIG.

After the detection switch SW1 is once turned on by the insertion of the disks 509 and 510, if the elapsed time t measured by the timer elapses 4 seconds or more, the process proceeds from step p4, p5 to step p6, and the detection switch SW1 is turned on. If it is determined that it is off,
In the next step p9, the discs 509 and 510 are inserted /
It is determined that the operator has withdrawn from the discharge port 502. Accordingly, in step p9, the insertion / ejection drive source 933
To stop.

FIG. 47 shows the processing means 9 when the discs 509 and 510 are mounted on the table 508 where reproduction / recording is being performed and are lifted by the elevating means 676 and are ejected and conveyed by the disc conveying means 673.
31 is a flowchart for explaining the operation of the embodiment 31. When the disk 510 having an outer diameter of 8 cmφ is lifted from the table 508 and is ejected and conveyed, steps q1 to q1 in FIG.
2 and q21 are performed.

FIG. 48 shows a disk 510 having an outer diameter of 8 cmφ.
FIG. 7 is a waveform diagram for explaining an operation when the sheet is lifted from a mounted state of the table 508 and discharged and conveyed.
FIG. 48A shows the operation of the detection switch SW1, and FIG.
8 (2) shows the operation of the detection switch SW2.
(3) shows the operation of the insertion / ejection drive source 933, and FIG.
Shows the operation of the clamp completion detection switch 919. As shown in FIG. 44 described above, when the operator operates the eject switch 932, step q in FIG.
The process moves from step 1 to step q2, where the insertion / ejection drive source 933 is driven to rotate in the direction opposite to that during insertion / transport. In step q3, the elapsed time t is measured by the timer from the time t11 of the operation of the eject switch 932, and if the measured time is less than a predetermined time, for example, 4 seconds, step q3
To step q4. In this step q4, it is determined whether or not the detection switch SW1 is ON. If so, in step q5, the timer is reset, and
In the next step q6, it is determined whether the new measurement time t is less than 4 seconds, and if so, the process proceeds to step q7. In step q7, it is determined whether the detection switch SW2 is off. If so, in step q8, it is determined whether the detection switch SW1 is off. As shown in FIG. 48 (1), the detection switch SW1
Are turned on and off by reference numerals t13 and t14, respectively. Disk 510 is 8c as described above.
mφ, so the detection switch SW2 is
It remains off as shown in FIG.

At step q8, the detection switch SW1
At time t14 when is turned off, the insertion / ejection drive source 933 is stopped as shown in FIG. In step q9, it is determined that the disk 510 has an outer diameter of 8 cmφ, and in step q10, the insertion / ejection drive source 93
3 is stopped, and at this time, the disc 510 is
It is in a discharge holding state sandwiched between 71 and the sliding piece 672. As a result, the disk 510 does not drop from the disk device 501 due to the vibration of the disk device, and damage to the disk 510 is prevented. This is particularly important when the disk device is mounted on an automobile or the like.

When the operator sets the disc 5 in the ejection holding state,
10 is slightly pressed, in the next step q11, the detection switch S is detected by the angular displacement of the arms 774 and 775.
W1 is turned on, and in step q12, the process proceeds to step p1 shown in FIG. 45, and a disc insertion / transport operation is performed.

When the time t measured by the timer is equal to or longer than 4 seconds in steps q3 and q6, in step q21, the insertion / ejection drive source 933 is stopped to prevent the insertion / ejection drive source 933 from being driven to rotate.

When the eject switch 932 is operated on the disk 509 having an outer diameter of 12 cmφ to be reproduced or recorded, the above-described steps q1 to q7 are executed,
If the detection switches SW1 and SW2 are both turned on,
In step q13, a disk 50 having an outer diameter of 12 cm
9 is determined.

FIG. 49 shows a disk 50 having an outer diameter of 12 cmφ.
FIG. 9 is a waveform diagram for explaining an operation when the sheet No. 9 is lifted from a table 508 and discharged and conveyed. These operations are as shown in Table 1.

[0085]

[Table 1]

The eject switch 932 is provided as shown in FIG.
The operation is performed at time t21 as shown in (5). As a result, the insertion / ejection drive source 933 is rotated in the reverse direction to that during insertion and conveyance of the disk 509 as shown in FIG.
It is detected at time t22 that the clamp has been released.

As the disc 509 is ejected and conveyed, the detection switch SW1 is turned on at time t23 as shown in FIG. 49A, and the detection switch SW2 is turned on at time t24.

At step q14 in FIG. 47, the timer is reset and a new elapsed time t is measured. If the time t measured in step q15 is less than 4 seconds, the process proceeds to the next step q16, and the detection switch SW2 determined to be on in step q7 described above.
Is turned off at time t25 in FIG. 49B, and if so, in step q17, the disk 509 having an outer diameter of 12 cmφ is
1 and the sliding piece 672 are in the discharge holding state, and it is determined that the discharge is completed. At this time, the detection switch SW
1 is kept on.

The disk 509 in the discharge holding state
Is pressed by the operator, in step q18, the detection switch SW2 is turned on, and it is determined that the disc has been re-inserted from the ejected and held state, and FIG.
The operation from step p1 onward in step 5 is performed.

At step q18, the detection switch SW2 is turned off, and at step q19, the detection switch SW1 is turned off.
Is turned off at time t26 in FIG. 49A, it is determined in step q20 that the disk 509 has been ejected from the insertion / ejection port 502 and has been ejected. The detection switches SW1 and SW2 may be realized by a micro switch or the like in which an actuator is displaced by an operation piece 781.

FIG. 50 is a flow chart for explaining the operation of the processing means 931 according to another embodiment of the present invention. In the embodiment shown in FIG.
An optical detection switch SW3 is provided on the base body 519 to detect 09 and 510. The optical detection switch SW3 includes a light-emitting element and a light-receiving element that form a pair above and below the transport path of the disks 509 and 510.
09, 510, the optical path may be interrupted, or the disk 509,
510 may be configured to irradiate light, and the reflected light may be received by a light receiving element. In addition, it may be configured to detect disks 509 and 510 in a non-contact manner. Detection switch SW in this embodiment
The switching states of SW1, SW2 and SW3 are as shown in Table 2.

[0092]

[Table 2]

In this embodiment, the disk device 501
When the power is restored after the occurrence of the power failure, a reset signal is generated from the reset signal generation circuit 935 and supplied to the processing means 931.

In step s1 of FIG. 50, when a reset signal is received from the reset signal generating circuit 935 at the time of power restoration, it is determined in next step s2 whether the detection switch SW3 is on. In FIG. 50 and FIG. 51 described later, the detection switch SW3 is referred to as a sensor. In step s3, when the disks 509 and 510 are detected by the detection switch SW3, the detection switch SW3 is on. Detection switch SW3
Are detecting the disks 509 and 510 in a state in which the disks 509 and 510 are mounted on the table 508, a state in which the disks 509 and 510 are directly above the table 508, and a state in which the disks 509 and 510 are in the table 508.
And the state before the discharge holding state at the insertion / discharge port 502. When it is determined that the disks 509 and 510 are detected by the detection switch SW3, in the next step s3, the forward drive is performed by the insertion / ejection drive source 933 to insert and carry the disks 509 and 510. In step s4, the reset signal 935
If the elapsed time t measured by the timer after the is received in step s1 is less than a predetermined time, for example, less than 4 seconds, the clamp completion detection switch 919 is turned on in the next step s5 to enter the clamp completed state. Is determined. When the clamp is completed, next, in step s6, the insertion / ejection drive source 933
Are in a reverse drive state for discharging and transporting the disks 509 and 510, and the operation proceeds to the operation of FIG.

In step s2, the detection switch SW3
Does not detect the disks 509 and 510 and is off, the process proceeds to step s7,
Is not present in the disk device 501, that is, it is determined that there is no disk, and the disks 509 and 510 are removed, and the insertion / ejection drive source 933 is stopped.

FIG. 51 is a flow chart for explaining the operation when the disks 509 and 510 are ejected from the state of being mounted on the table 508 in the embodiment shown in FIG. Steps r1 to r8 show a state where the disk 510 having an outer diameter of 8 cmφ is ejected. In step r1, when the eject switch 932 is operated by the operator, in the next step r2, the disk 50 is turned on by the detection switch SW3.
It is determined whether 9, 510 are detected, and if the disks 509, 510 are detected, the process proceeds to the next step r3, in which the insertion / ejection drive source 933 performs a reverse rotation operation for ejection / conveyance. In step r4, after the eject switch 932 is operated by the timer, the elapsed time t
Is measured, and when it is determined that the measured time t is less than a predetermined time, for example, 4 seconds, the process proceeds to the next step r5, and it is determined whether the detection switch SW1 is on. If the detection switch SW1 is on, in the next step r6, it is determined whether the detection switch SW2 is off. If the detection switch SW2 is off, it is determined in a next step r7 whether or not the detection switch SW3 has been turned off. If the detection switch SW3 is turned off, in a step r8, it is determined that the disk 510 having an outer diameter of 8 cmφ has been loaded. Then, in the next step r9, the disk 51
The discharge drive source 933 is further rotationally driven for a time during which the recording medium 0 is sandwiched between the conveying roller 671 and the sliding piece 672 to be in the discharge holding state, and the disk 510 is in the discharge holding state in step r9.

At step r10, the detection switch S
If W3 has not detected the disks 509 and 510, and if the detection switch SW1 is on in step r11, the process returns to step r9 again, and the detection switch S
If W1 is off, it is determined in step r12 that the disks 509 and 510 have been removed from the insertion / ejection port 502.

At step r9, the disks 509, 5
When the operator pushes and inserts the disc 509 or 510 when the disc 10 is sandwiched between the transport roller 671 and the sliding piece 672 in the discharge holding state, in step r10, the disc is inserted by the detection switch SW3. Disk 509 or 510 is detected. Thus, in step r16, it is determined that the disks 509 and 510 have been re-inserted, and the above-described operations after step p1 in FIG. 45 are executed.

At step r1 when the eject switch 932 is operated, and thereafter, when the detection switch SW3 does not detect the disks 509 and 510 at step r2 and is off, at step r17, at steps r17 and 509,
10 is not stored in the disk device 501, it is determined that there is no disk, and the insertion / ejection drive source 933 is stopped. When the disk 509 having an outer diameter of 12 cm is mounted on the table 508, the eject switch 932 is operated to execute the above-described steps r1 to r6. Move on to step r13, outer diameter 12c
It is determined that the disk 509 of mφ is mounted. In step r14, it is determined whether or not the detection switch SW2 is turned off by the transport of the disk 509. If the detection switch SW2 is turned off, the next step r1
At 5, it is determined whether the detection switch SW3 has been turned off. When it is determined in step r15 that the detection switch SW3 has been turned off, in step r9, the disk 509 is transported until it is nipped by the transport roller 671 and the sliding piece 672, and is in the discharge holding state. Other operations relating to the disk 509 having an outer diameter of 12 cmφ are the same as the operations of the disk 510 having an outer diameter of 12 cmφ described above. FIGS. 46 (5), 48 (6) and 49 (6) show the operation of the detection switch SW3. FIG.
Other configurations and operations of the embodiment of the present invention shown in FIG. 0 and FIG. 51 are the same as those of the embodiment described above with reference to FIGS.

[0100]

According to the first aspect of the present invention, the types of the first and second disks can be detected by using the first and second detection switches SW1 and SW2. The two detection switches SW1 and SW2 include a pair of abutting members 776 and 777 for performing centering for insertion and discharge of a disk, and a pair of arms 77.
4,775 and an arm spring 783 in combination. Thus, the configuration is simplified, and mass production is facilitated.

According to the second aspect of the present invention, the third detection switch SW3 is further added, whereby the reproduction or recording state in which the disc is mounted on the table, or the state in which the disc is present immediately above the table. Can be detected, for example, when the power is restored, so that the subsequent ejection and conveyance of the disc or other automatic operation can be performed.

According to the third and fourth aspects of the present invention, the first
The type of the first or second disk having a different outer diameter in the discharge holding state is detected by a logical combination of the first and third detection switches SW1, SW2 or the first to third detection switches SW1, SW2, SW3. It is possible to determine whether the disc is in the ejection holding state or the ejection state.

Further, when the operator presses the first or second discs having different outside diameters in the ejection holding state, the first and second detection switches SW1 and SW2 or the first to third detection switches are used. It is easily possible to detect by a logical combination of SW1, SW2, and SW3, and in response to the detection result, automatically perform the insertion and conveyance by the disk conveyance means.

[Brief description of the drawings]

FIG. 1 is a simplified plan view showing the overall configuration of an embodiment of the present invention.

FIG. 2 shows an insertion / ejection port 502 of the disc reproducing apparatus 501.
FIG. 11 is a front view showing the upper limit position of the disk 509 in which the disk 509 as viewed from above exists right above the table 508 at intervals.

FIG. 3 is a front view showing a state where a disk 509 is mounted on a table 508 and is at a lower limit position for reproduction.

FIG. 4 is a simplified side view corresponding to FIG. 2 and showing the upper limit position of the disk 509 as viewed from the right side in FIG. .

FIG. 5 is a side view of the apparatus main body 505 corresponding to FIG. 2 as viewed from the left in FIG.

FIG. 6 is a side view corresponding to FIG. 3, showing a state in which a disk 509 of the apparatus main body 505 viewed from the left in FIG. 1 is at a lower limit position.

FIG. 7 is a plan view of one arm 774. FIG.

FIG. 8 is a front view of the arm 774 as viewed from below in FIG. 7;

FIG. 9 shows a long hole 778 formed at the other end of the arm 774;
FIG. 4 is an enlarged plan view of FIG.

FIG. 10 is a plan view of an arm 775. FIG.

11 is a front view of the arm 775 viewed from below in FIG.

FIG. 12 is a plan view for explaining the operation of the disk detecting means 771.

FIG. 13 shows a disk detecting unit 77 showing a state where the disk 510 is displaced rightward in the insertion direction 503 and is inserted and transported.
FIG. 2 is a plan view showing the operation of FIG.

FIG. 14 is a plan view for explaining the operation of the disc detecting means 771 when a relatively large-diameter disc 504 is inserted and conveyed.

FIG. 15 shows a configuration for holding a second moving member 792 provided in the elevating means 676 in a rest state in which reproduction / recording of the disk 509 is not performed, and preventing generation of noise due to rattling. FIG.

FIG. 16 is a front view of a holding member 801.

FIG. 17 is a plan view of a holding member 801.

FIG. 18 is a side view of the holding member 801.

FIG. 19 is a rear view of the holding member 801.

FIG. 20 is a cross-sectional view taken along the line XX-XX of FIG. 16;

FIG. 21 is a plan view of a moving unit 835 constituting the elevating unit 676.

FIG. 22 is a bottom view of the moving means 835.

23 is a moving means 83 shown in FIGS. 21 and 22.
5 is a front view of FIG.

24 is a right side view of the moving means 835 as viewed from the right side in FIG. 21.

FIG. 25 is a plan view of a contact piece 838. FIG.

FIG. 26 is a right side view of the contact piece 838 in FIG. 25;

FIG. 27 is a rear view of the contact piece 838 as viewed from above in FIG. 25;

FIG. 28 is a sectional view of the vicinity of a contact portion 851 of a contact piece 838.

FIG. 29 is a plan view for explaining the operation of the moving means 835 when the disk 509 is inserted and conveyed in the insertion direction 503.

FIG. 30 is a sectional view of a lever 871 and its vicinity.

31 is a plan view of a first moving member 791. FIG.

32 is a side view of the first moving member 791. FIG.

FIG. 33 is a view showing a vertical guide hole 881 and a horizontal guide hole 882 in an interlocking portion 883.

FIG. 34 is a simplified plan view for explaining the operation of the moving means 835 of the elevating means 676 when the small-diameter disk 510 is inserted.

FIG. 35 is a simplified plan view for explaining the operation of the moving means 835 when a large-diameter disk 509 is inserted.

36 is a diagram illustrating an operation of the moving unit 835 when the disk 509 is further inserted in the insertion direction 503 from the state of FIG. 25 (2).

FIG. 37 is a simplified plan view of the moving means 835 showing a state in which the disk 509 is further inserted and conveyed in the insertion direction 503 compared to the state of FIG. 36.

38 is a diagram illustrating a state where the rack 884 is moved in the direction of the arrow 887 by engaging with the pinion 885 from the state illustrated in FIG. 37.

FIG. 39 shows elevating operation means 83 constituting elevating means 676;
6 is a plan view of a second moving member 792 provided in 6. FIG.

40 is a right side view of the second moving member 792. FIG.

FIG. 41 is an enlarged plan view of the vicinity of an interlocking portion 902 of a second driving member 792.

42 is a sectional view showing first and second moving members 791, 792, a rack 884, and a pinion 885. FIG.

FIG. 43 is a simplified plan view for explaining an operation in which the rack 884 and the pinion 885 mesh with each other as the first and second moving members 791 and 792 move.

FIG. 44 is a block diagram showing an electrical configuration of the disk reproducing device 501 according to the embodiment of the present invention shown in FIGS. 1 to 43.

FIG. 45 is a flowchart for explaining the operation of inserting and carrying the disks 509 and 510 by the disk carrying means 673;

FIG. 46 is a waveform chart for explaining the operation of inserting and transporting the disks 509 and 510.

FIG. 47 shows a state in which the disks 509 and 510 are mounted on the table 508 that is performing reproduction / recording, and the disk 509 and 510 are lifted by the elevating means 676, and the disk transport means 673 is provided.
9 is a flowchart for explaining the operation of the processing means 931 when the sheet is discharged and conveyed.

FIG. 48 shows a table 5 in which a disk 510 having an outer diameter of 8 cm
It is a wave form diagram for explaining operation at the time of ascending from the mounting state of 08 and carrying out discharge conveyance.

FIG. 49 is a waveform diagram for explaining an operation when a disk 509 having an outer diameter of 12 cmφ is lifted from the table 508 and is ejected and conveyed.

FIG. 50 is a flowchart illustrating an operation of a processing unit 931 according to another embodiment of the present invention.

FIG. 51 is a flowchart for explaining the operation when the disks 509 and 510 are ejected from the state mounted on the table 508 in the embodiment shown in FIG. 50;

[Explanation of symbols]

 501 DVD playback device 502 Insertion / ejection port 503 Insertion direction 505 Device main body 508 Table 509, 510 Disk 511 Optical pickup 519 Base 673 Disk transport means 675 Clamp means 771 Disk detection means 774, 775 Arm 776, 777 Contact member 791 First movement Member 792 Second moving member 793 End 797 Tip 798, 799 Tip side 801 Holding member 805 Housing 806 Damper 814, 815 First holding guide slope 816 Second holding guide slope 817 Tip holding section 832 Moving member 835 Moving means 836 Elevating means 838,839 Contact piece 841,842 Arm 845 Tension spring 846 Slot 847 Convex part 851 Contact part 852 Working part 853 Lock part 857 Torsion spring 861 First Guide portion 862 First lock portion guide portion 863 Second lock portion guide portion 864 Locking portion 866 Second guide portion 867 First operating portion guide portion 868 Second operating portion guide portion 871 Lever 872 One end portion 874 Others End 884 Rack 885 Pinion 891 Separation section 892 Continuous section 902 Interlocking section 907,833 Cam mechanism 926 Second guide section 931 Processing means 932 Eject switch 933 Insertion / ejection drive source 935 Reset signal generation circuit SW1, SW2, SW3 Detection switch

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Susumu Yamamoto 1-2-2, Goshodori, Hyogo-ku, Kobe, Hyogo Prefecture Inside Fujitsu Ten Co., Ltd. (72) Inventor Noboru Hidaka 1, Goshodori, Hyogo-ku, Hyogo F-term (reference) in Fujitsu Ten Limited No. 2-28 5D046 AA12 AA16 CA16 CB03 CD03 EA02 EA06 GA02 GA15

Claims (4)

[Claims] 1. An optical pickup 511 for reproducing or recording a disk, and a moving means 522 for moving the optical pickup in a predetermined linear moving direction of the substrate. (D) a table 508 on which a disk is mounted, (e) a disk transport means 673 for inserting and transporting the disk directly above the table, and discharging and transporting the disk immediately above this table; (G) clamping the inserted and conveyed disc to the clamping means 675;
(H) a pair of abutting members 776 that abut on the outer peripheral portion of the disk to be inserted and conveyed and ejected and conveyed; , 777; and (i) a pair of arms 774, 775, each arm being provided on the base body 519, 837 so as to be angularly displaceable, and a contact member 776, 777 provided at one end of each arm; The other end of one arm 774 has an elongated hole 778 formed to be elongated substantially perpendicular to the axis of angular displacement of the one arm, and the other end of the other arm 775 fits into the elongated hole. (J) an arm spring 783 that applies a spring force to the arm in a direction in which the one end approaches, and (k) an arm spring provided at the other end of any one of the pair of arms 775. Actuation (1) a first disk having a predetermined first outer diameter and a second disk having a predetermined second outer diameter smaller than the first outer diameter; First and second
The outer peripheral portion of the disk comes into contact with the operating piece 781
(M) a second detection switch SW2 whose switching state changes when the outer peripheral portion of the first disk comes into contact with the abutting member; and (n) first and second switches. 2. A disk device, comprising: processing means for detecting the type of disk to be inserted / ejected based on a logical combination of the switching states of the two detection switches SW1 and SW2. (A) a base 519; (b) an optical pickup 511 for reproducing or recording a disk; and (c) moving means 522 for moving the optical pickup in a predetermined linear movement direction of the base. (D) a table 508 on which a disk is mounted, (e) a disk transport means 673 for inserting and transporting the disk directly above the table, and discharging and transporting the disk immediately above this table; (G) clamping the inserted and conveyed disc to the clamping means 675;
(H) a pair of abutting members 776 that abut on the outer peripheral portion of the disk to be inserted and conveyed and ejected and conveyed; , 777; and (i) a pair of arms 774, 775, each arm being provided on the base body 519, 837 so as to be angularly displaceable, and a contact member 776, 777 provided at one end of each arm; The other end of one arm 774 has an elongated hole 778 formed to be elongated substantially perpendicular to the axis of angular displacement of the one arm, and the other end of the other arm 775 fits into the elongated hole. (J) an arm spring 783 that applies a spring force to the arm in a direction in which the one end approaches, and (k) an arm spring provided at the other end of any one of the pair of arms 775. Actuation (1) a first disk having a predetermined first outer diameter and a second disk having a predetermined second outer diameter smaller than the first outer diameter; First and second
The outer peripheral portion of the disk comes into contact with the operating piece 781
(M) a second detection switch SW2 whose switching state changes when the outer peripheral portion of the first disk comes into contact with the contact member; and (n) first and second switches. A third detection switch SW3 that detects the first and second disks during reproduction or recording of the two disks, and does not detect the first and second disks in a state where the first and second disks are ejected and held; Third detection switches SW1, SW2, SW3
Insertion / depending on the logical combination of the switching states of
Processing means for detecting the type of disc to be ejected. 3. The first detection switch SW1 detects the first disk in the ejection and holding state of the disk, does not detect the second disk in the ejection and holding state of the second disk, and the second detection switch SW2 2. The disk device according to claim 1, wherein the first and second disks are not detected in the ejection and holding state of the second and second disks. 4. A first detection switch SW1 detects the first and second discs in a state where the discs are ejected and held, and
3. The disk device according to claim 2, wherein the first and second detection switches SW2 and SW3 do not detect the first and second disks in a state where the disks are ejected and held.