JPH0432462B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a cabinet having a built-in table for rotating a disk-shaped recording medium and having an opening in its front panel; A mounting portion is provided on the cabinet to be movable between a protruding position protruding to the outside of the cabinet and a retracted position retracted into the interior of the cabinet, and on which the disc-shaped recording medium is placed. and after pulling the disc-shaped recording medium placed at the protruding position to the retracted position, the disc-shaped recording medium is moved up and down relative to the table to attach and detach the disc-shaped recording medium to and from the table. The carrier is interlocked with the carrier that is moved relative to the table, and the disc-shaped recording medium placed on the table is held between the table and the disc-shaped recording medium in a centered state, and the disc-shaped recording medium is The present invention relates to a playback device for a disk-shaped recording medium, comprising a holding means for rotating the medium in cooperation with the table.

[Summary of the invention]

The present invention automatically pulls a disc-shaped recording medium positioned and placed at a predetermined position of a carrier through an opening provided in the front panel of the cabinet by the carrier and sets it on a table inside the cabinet. In the disc-shaped recording medium reproducing apparatus, the disc-shaped recording medium is held between the table and the clamping means in order to rotate the disc-shaped recording medium. The purpose of the present invention is to provide a reproducing apparatus in which the disc-shaped recording medium can always be accurately and reliably set on the table by providing a positioning section in the cabinet.

[Conventional technology]

Using a carrier, a disc-shaped recording medium is mounted on a table built into the cabinet through an opening provided in the front panel of the cabinet, and the disc-shaped recording medium is held between the table and the holding means. In a conventional disk-shaped recording medium playback device configured to rotate and drive the disk-shaped recording medium by holding it between the two, the disk-shaped recording medium is placed on the carrier and then mounted on the table. There was a risk that the position would go out of order.

[Problem that the invention seeks to solve]

In view of the above-mentioned points, the present invention provides that the disk-shaped recording medium is always accurately and reliably mounted on the table,
As a result, it is an object of the present invention to provide a reproducing device for a disc-shaped recording medium in which the disc-shaped recording medium does not fall off from the carrier or be damaged by contact with the corner of the table or the like during the movement of the carrier. That is.

[Means for solving problems]

A disc-shaped recording medium reproducing apparatus according to the present invention includes a cabinet that includes a built-in table for rotating a disc-shaped recording medium and has an opening in its front panel, and a cabinet that connects the cabinet from the opening to the outside of the cabinet. A mounting section is provided in the cabinet to be movable between a protruding position in which the disc-shaped recording medium is projected and a retracted position in which the disc-shaped recording medium is mounted; a carrier that pulls the disc-shaped recording medium placed at the protruding position to the retracted position and then moves the disc-shaped recording medium up and down relative to the table to attach and detach the disc-shaped recording medium to and from the table; , interlocks with the carrier which is moved relative to the table, holds a disk-shaped recording medium placed on the table between it and the table in a centered state, and holds the disk-shaped recording medium placed on the table in a centered state; In a disc-shaped recording medium playback device comprising a holding means that rotates in cooperation with a table, the disc-shaped recording medium is positioned when the disc-shaped recording medium is placed on the mounting portion of the carrier at the protruding position. , the carrier is provided with a positioning part for positioning the disc-shaped recording medium with respect to the mounting part when the disc-shaped recording medium is conveyed to the retracted position by the carrier; A playback device for a type of recording medium was constructed.

[Effect]

Therefore, when the carrier moves from its protruding position and reaches its retracted position, the disc-shaped recording medium placed on this carrier is accurately mounted on the table. is in the protruding position and is positioned at its correct placement position by the positioning portion of the carrier.

Further, since the disc-shaped recording medium is reliably held by the positioning section so as not to shift from the correct placement position while the carrier is moving, the disc-shaped recording medium can be When mounting on the table, no inconvenience will occur due to misalignment.

〔Example〕

An embodiment in which the present invention is applied to a record player will be described below with reference to the drawings.

First, a front panel 2 of the cabinet 1 is provided with an opening 3 having a horizontally long shape. Also, front panel 2
is provided with an operation section 5 having a plurality of operation buttons 4 such as power on/off, start, stop, etc. Inside cabinet 1 is turntable 6.
are arranged horizontally and are configured to be rotationally driven by a directly connected motor 7 fixedly installed within the cabinet 1.

Next, a carrier 9 is disposed within the cabinet 1, and this carrier 9 is moved up and down with respect to a turntable 6, which is a rotational drive means, while maintaining a horizontal state, and is moved in and out of the opening 3 horizontally. It is configured to

First, this carrier 9 is composed of a horizontal plate, the upper surface of which serves as a record mounting surface 10. Note that when a record R, which is a disk-shaped recording medium, is placed on this placement surface 10, the placement surface 1
The record R is positioned approximately at the center of the carrier 9 by means of a positioning portion consisting of left and right side surfaces 11a, 11b of 0 and a semicircular arc surface 11c continuous thereto. Further, a circular hole 12 slightly larger than the diameter of the turntable 6 is formed in the center position of the carrier 9.

By the way, the drive mechanism of this carrier 9 includes a pair of left and right sliders 13a, 13b and 14a, 14b.
and a motor 15. That is, first, both sliders 14a and 14b are integrally connected to each other by a connecting rod 16. Next, U grooves 17a and 1 are provided on the lower surfaces of both sliders 14a and 14b.
7b is provided along the longitudinal direction, and the U groove 17 is provided in a pair of left and right guide shafts 18a, 18b installed horizontally and in parallel inside the cabinet 1.
a, 17b, and is configured to be slidable in the front-rear direction along both guide shafts 18a, 18b. Next, both sliders 14a, 14b
Slot holes 19a, 19b are provided along the longitudinal direction, and both sliders 13a, 13b are accommodated in these slots 19a, 19b so as to be slidable in the front-rear direction. Next, a pair of left and right lifting shafts 20a and 20b vertically planted on the lower surface of the rear end of the carrier 9 are inserted into insertion holes 21a and 21b provided in both sliders 13a and 13b so as to be able to rise and fall freely. Next, racks 22a, 22b are provided inside the sliders 14a, 14b along the longitudinal direction.
A pair of pinions 23a and 23b meshed with the pinions 23a and 23b are fixed to both ends of a transmission shaft 24 rotatably supported within the cabinet 1. A motor shaft 25 of a motor 15 fixedly installed in the cabinet 1 and a transmission shaft 24 are interlocked by gears 26 and 27.

Each of the vertical shafts 20a, 20b is connected by a spring 30 fitted to the outer periphery of each vertical shaft 20a, 20b between a washer 29 fitted to the lower end of each vertical shaft 20a, 20b and each slider 13a, 13b.
b is slidably biased downward. Also, the bottom surface 3 of the slot 19a, 19b of each slider 14a, 14b
1 has a step surface 32 raised to a predetermined height at the rear end.
is provided, and the stepped surface 32 and the bottom surface 31 are connected by a slope 33. The lower end of each lifting shaft 20a, 20b is configured to be pressed onto each slope 33. Also, each slider 13
Each guide shaft 18a, 18b is attached to the front end of a, 13b.
A guide pin 34 that is parallel to the slider 14 is fixed, and the front end of the guide pin 34 is connected to each slider 14a, 14.
It is inserted into an insertion hole 36 provided in the front end wall 35 of b. Each guide pin 34 is connected between each front end wall 35 and the front end of each slider 13a, 13b.
Each slider 13a, 13b is urged to slide rearward within each slot 19a, 19b of each slider 14a, 14b by a spring 37 fitted in the slider 14a, 14b. Further, a stopper pin 39 is fixed to the rear end of each guide shaft 18a, 18b via a bracket 38 in parallel with each guide shaft 18a, 18b. Each of these stopper pins 39 is inserted through an insertion hole 41 provided in the rear end wall 40 of each slider 14a, 14b, and is inserted into each slider 13a, 13b.
It is configured to come into contact with the rear end of the

Next, in the cabinet 1, on one side of the turntable 6, a record R holding arm 43 is arranged. This presser arm 43 is attached to a bracket 44.
The presser arm 4 is pivotally connected to the presser arm 4 via a horizontal fulcrum shaft 45 so as to be freely rotatable in the vertical direction.
A spring 46 stretched between a part of the bracket 3 and a part of the bracket 44 urges the bracket 44 to rotate downward. A presser disk 47 for the record R is rotatably attached to the lower surface of the tip of the presser arm 43 via a bearing (not shown), and a record disk R is rotatably attached to the lower surface of the presser arm 43 at the center of the lower surface of the presser disk 47. A spindle 48 for positioning the center of the board R is provided. The bracket 44 also has a lifting shaft 49.
is held so as to be able to rise and fall freely, and the lower end of this lift shaft 49 is connected to a horizontal cam plate 5 provided along the longitudinal direction on one side of one slider 14a.
It is placed on 0. Note that the presser arm 43 is placed on the upper end of this elevating shaft 49, and the elevating shaft 49
Washer 51 and bracket 4 fitted on the lower end of
4, the elevating shaft 49 is slidably biased downward by a spring 52 fitted on the outer periphery of the elevating shaft 49. The upper surface of the cam plate 50 is provided with a low surface 53, a high surface 54, and a slope 55 connecting these surfaces.

Further, a fulcrum pin 57 is provided in the opening 3 of the cabinet 1.
A lid 58 is provided that is rotatable around the center. This lid 58 is configured to be rotated clockwise by a spring 59 as shown in FIG. 3A to close the opening 3. Further, a tone arm device 6 having a tone arm 60 is located at a position opposite to the presser arm 43 in the cabinet 1.
1 is placed.

Next, the automatic setting and resetting operations of the record R by the record player configured as above will be explained.

First, when a starting button such as a start button is pressed, the motor 15 is driven to rotate in the forward direction. Both pinions 2 and 2 are connected via gears 26, 27 and transmission shaft 24
3a and 23b are driven in forward rotation, and both racks 22
a, 22b are driven, and both sliders 14a, 14
b begins to move forward, which is the left side in FIG. 3A.

At this time, first of all, when both sliders 14a and 14b start moving forward, the lifting shaft 49 is moved by the spring 5.
2 from the lower surface 53 of the cam plate 50 to the slope 55
and is pushed up onto the elevated surface 54. Then, the elevating shaft 49 pushes up the presser arm 43, and the presser arm 43 is rotated to a predetermined height above the turntable 6 as shown in FIG. 4A.

Next, when both sliders 14a and 14b are moved forward, since both sliders 13a and 13b are pressed and fixed to both stopper pins 39 by both springs 37, both sliders 14a and 14b are moved forward. As a result, both the lifting shafts 20a and 20b move up the slopes 33 against the springs 30, and the carrier 9 is raised by the lifting shafts 20a and 20b as shown in FIG. 3B. When both the lifting shafts 20a and 20b are pushed up onto the stepped surfaces 32 as shown in FIG.
The rear end wall 40 of b is brought into contact with the rear ends of both sliders 13a and 13b, and thereafter both sliders 13a and 13b are moved forward together with both sliders 14a and 14b.

As a result, the carrier 9 is horizontally moved forward, and as shown in FIG. 3C, the carrier 9 pushes open the lid 58 with its front end against the spring 59, and projects a predetermined length in front of the opening 3. . When both sliders 14a and 14b reach a predetermined position, they are detected by a sensor 63 such as a micro switch,
The motor 15 is stopped to wait for the record R to be inserted.

Next, the record R is inserted by sliding it onto the record mounting surface 10 of the carrier 9.
At this time, the record R is placed on both left and right sides 11a, 11b of the mounting surface 10, which is a positioning part, and on the semicircular arc surface 11.
The outer circumferential portion of the carrier 9 is regulated by c and is automatically positioned at a predetermined position, approximately at the center of the carrier 9. When the record R has been inserted into the predetermined position in this manner, it is detected by a sensor 64 such as a photoelectric switch, and the motor 15 is driven to rotate in reverse. Then, both pinions 23a, 23b are rotated in the opposite direction via gears 26, 27 and transmission shaft 24, both racks 22a, 22b are driven, and both sliders 14a, 14b are moved rearward, which is the right side in FIG. 3C. Begins.

At this time, both sliders 13a and 13b are moved rearward together with both sliders 14a and 14b, and carrier 9 is horizontally drawn rearward while closing lid 58.

When the record R is pulled in to a position directly above the turntable 6, both sliders 13a, 1
3b comes into contact with both stopper pins 39 and is stopped. On the other hand, both sliders 14a and 14b continue to be moved to the rear side. As a result, both lifting shafts 20a,
20b slides down both slopes 33 from above both stepped surfaces 32, and the carrier 9 is lowered by these lifting shafts 20a, 20b.

As the carrier 9 descends, the record R is placed on the turntable 6. On this occasion,
Since the record R is accurately positioned at the center position of the carrier 9 by the left and right sides 11a, 11b of the mounting surface 10, which is a positioning part, and the semicircular arc surface 11c, the record R is always accurately and reliably positioned. is placed at a predetermined position on the turntable 6. The carrier 9 is inserted through the turntable 6 through the circular hole 12 and is lowered to a position where the record mounting surface 10 is lower than the top surface of the turntable 6.

On the other hand, as both sliders 14a and 14b move rearward, the elevating shaft 49 moves toward the high surface 50 of the cam plate 50.
From there, it slides down the slope 55 onto the low-lying surface 53.
As a result, the presser arm 43 is rotated downward by the spring 46 as shown in FIG. 4B, and the presser disk 4
7 presses the record R relatively against the top surface of the turntable 6, and the spindle 48 passes through the center hole of the record R and is inserted into the center hole of the turntable 6, so that the record R is pushed onto the turntable 6. centered.

When both sliders 14a and 14b reach a predetermined position, it is detected by a sensor 65 such as a micro switch, and the motor 15 is stopped. Thereafter, the tone arm 60 of the tone arm device 61 is automatically lead-in onto the record R as shown by the imaginary line in FIG. While being held between the top and bottom by the turntable 6, the turntable 6 rotates and starts playing.

After the performance is finished or when the stop button is pressed, the tone arm 60 is first automatically returned to the armrest position shown by the solid line in FIG. 2, and then the motor 15 is driven to rotate in the forward direction. As a result, as described above, the presser arm 43 is rotated upward and the carrier 9 is simultaneously raised, the record R on the turntable 6 is placed on the record mounting surface 10 of the carrier 9, and then carrier 9
is moved to the front image, the lid 58 is pushed open, and the record R is pulled out of the opening 3. Then, when the record R is removed from the record mounting surface 10,
It is detected by the sensor 64, the motor 15 is driven to reverse rotation, and the carrier 9 is pulled rearward.
Then, it is lowered and returned to its original position.

In addition, in the example described above, a 30cm record R
For example, the record R is configured to be transported by carrier 9.
When using vinyl records, you will need to use an appropriate adapter.

Further, in the embodiment, the carrier 9 has a circular hole 12.
However, carriers of various shapes can be used, such as a carrier that holds the peripheral portion of the record R and has a large opening in the center.

Further, in the embodiment, the carrier 9 is configured to move in the horizontal direction and in the vertical direction, but the turntable 6 is configured to move up and down relative to the carrier 9, so that the carrier 9 is moved only in the horizontal direction. It can be done. With this configuration, the vertical movement of the turntable 6 and the horizontal movement of the carrier 9 can be driven by mutually independent and extremely simple drive mechanisms. As described above, various mechanisms can be employed as the drive mechanism for the carrier 9 according to the present invention.

Furthermore, the present invention can be widely applied not only to record players but also to playback devices that play back disk-shaped recording media such as compact discs, optical disks, magneto-optical disks, etc., and can also be applied to playback devices that have a recording function. It is also applicable to

〔Effect of the invention〕

Since the present invention has the above-described configuration, when the carrier moves from its protruding position and reaches its retracted position, the disc-shaped recording medium placed on this carrier is accurately mounted on the table. The disk-shaped recording medium is positioned at the correct mounting position by the positioning section of the carrier at the protruding position.

Further, since the disc-shaped recording medium is reliably held by the positioning section so as not to shift from the correct placement position while the carrier is moving, the disc-shaped recording medium can be When mounting on the table, no inconvenience will occur due to misalignment.

Thus, when the disc-shaped recording medium is placed on the carrier at its protruding position, the disc-shaped recording medium is slid on the carrier for positioning, and as a result, the disc-shaped recording medium is Inconveniences such as scratches or dust adhesion can be prevented.

Further, it is also possible to prevent inconveniences such as the disc-shaped recording medium falling off from the carrier while the disc-shaped recording medium is being transported by the carrier.

In addition, since the disc-shaped recording medium can always be attached to and removed from the table accurately and reliably, the functions of the playback device can be maintained perfectly at all times, and the playback device and the recording medium can be protected against unexpected accidents, breakdowns, etc. There is no risk of damage.

[Brief explanation of drawings]

The drawings show an embodiment of a record player to which the present invention is applied, and FIG. 1 is a perspective view;
Fig. 2 is a plan view of the cabinet cut horizontally, Figs. 3A to 3C are cross-sectional views taken along the line - Fig. 2 to explain the operation of the carrier, and Figs. 4A and 4B are of a record disc. Fig. 2 is a cross-sectional view taken along line 3A to explain the setting operation.
A line sectional view, FIG. 6 is a line sectional view taken from FIG. 3C,
FIG. 7 is a perspective view of the carrier drive mechanism. In addition, in the symbols used in the drawings, 1...cabinet, 2...front panel, 3...opening (opening), 6...turntable (table), 9...
Carrier, 10...Record mounting surface (mounting section),
11a, 11b...Side surface (positioning part), 11c
...Semicircular arc surface (positioning part), 12...Circular hole,
13a, 13b...Slider, 14a, 14b...
...Slider, 15...Motor, 20a, 20b...
... Lifting shaft, 47 ... Holding disk (clamping means), 49
. . . Lifting axis, R . . . Record disc (disc-shaped recording medium).

Claims (1)

[Scope of Claims] 1. A cabinet having a built-in table for rotating a disk-shaped recording medium and having an opening in its front panel; and a protruding position protruding from the opening to the outside of the cabinet. A mounting section is provided in the cabinet to be movable between a retracted position and a retracted position, and the disc-shaped recording medium is mounted thereon, and the disc-shaped recording medium is mounted at the protruding position. a carrier that moves the disc-shaped recording medium up and down relative to the table after drawing the disc-shaped recording medium to the retracted position to attach and detach the disc-shaped recording medium to and from the table; and a carrier that moves relative to the table. The disc-shaped recording medium placed on the table is held between the carrier in a centered state and rotated in cooperation with the table. In the disc-shaped recording medium playback device, the disc-shaped recording medium is positioned at the protruding position when the disc-shaped recording medium is placed on the mounting portion of the carrier, and the disc-shaped recording medium is positioned by the carrier at the protruding position. Disc-shaped recording characterized in that the carrier is provided with a positioning part for positioning the disc-shaped recording medium with respect to the mounting part when transporting the disc-shaped recording medium to the retracted position. Media playback device.