JPH05135473A - Disk loading device - Google Patents

Abstract

PURPOSE:To prevent a disk from quailing or scraping by performing a clamp operation with a clamper opening/closing member at the reproducing position and releasing a pressurized contact of the disk linked therewith by an opening/ closing means of a disk holding part. CONSTITUTION:A holding part in the opening state located at a standby position is inserted into a magazine inside for pulling out the disk 30 from the magazine 27, and the clamper 8 is moved to the opening position from the clamp position by the clamper opening/closing member linked with the pressurizing contact of disk 30 performed by the opening/closing means of the holding part, and the clamp operation is performed at the reproducing position by the clamper opening/closing member, then by releasing the pressurized contact of disk linked with the above operation by the opening/closing means of holding part, the clamper 8 is closed at the standby or disk selecting state. The quailing or scraping state caused from a minute vibration of the disk clamper can be thereby prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc loading device having an auto change function which uses a magazine containing a plurality of discs and takes out the discs one by one from the magazine for recording or reproducing.

[0002]

2. Description of the Related Art In recent years, disk players having an automatic change function have become popular due to their operability. In particular, an auto changer that uses a compact disc (hereinafter referred to as a CD changer) is used for in-vehicle use because of the nature of the environment in which it is used to record or reproduce a single C.
Demand is increasing compared to D players.

The following is a description of the conventional CD changer 2.
An example of types will be described. First, as a first conventional example,
An example is shown in which the disks of the storage section and the performance section do not overlap with each other when viewed from the main surface of the disk.

FIG. 19 is a front sectional view of a magazine used in this conventional CD changer, and FIG. 20 is a principle view of a loading device in a conventional CD changer for recording or reproducing using the magazine shown in FIG. ,
(A) is a top view and (b) is a side view. In FIG. 19, a plurality of discs 103 are stored inside a magazine 110 in a state of being placed on partition plates 111, and both ends of each partition plate 111 are regulated by a regulation groove 112. In FIG. 20, reference numeral 101 is a rotation driving means to which the disc 103 is mounted at the time of recording or reproducing. 106 is a disk 103a
It is a pickup that reads the signal recorded in. 11
Reference numeral 3 denotes a disc take-out lever for taking out a desired disc 103 from the magazine 110, and the same number as the disc 103 is provided. 103a is a disc 103 which is ejected from the magazine 110 by a disc take-out lever 113.
One of the selected discs is taken out. 107
Is a rubber roller that presses both main surfaces of the disk 103a taken out by the disk take-out lever 113 and rotationally transfers to the position of the rotation driving means 101, and is constituted by a pair of upper and lower rubber rollers 107a and 107b. 11
Reference numeral 5 denotes a magazine holding unit that holds the magazine 110.

The rotation driving means 101 has a magazine insertion direction 1
04, the magazine insertion direction 104 and the transport direction 105 of the selected disk 103a to the rotation driving means 101 are aligned. Also,
The rotation driving means 101 is movable in the direction of arrow 102 (height direction). Further, although not shown, a lever kicking device that engages with the disc take-out lever 113 and a disc carrying device that rotates the rubber roller 107 are formed on the same supporting member as the rotation driving means 101, and both are in the direction of arrow 102 (high). Direction).

When the magazine 110 is inserted in the magazine insertion direction 104, the disc 110 is held by the magazine holding portion 115. The height of the disc 103 is selected by moving in the direction of the arrow 102 (height direction), and the disc 103a can be taken out by a lever kicking device (not shown) that engages with the disc take-out lever 113 of a desired height. Done. At this time, the rubber rollers 107a, 10
7b sets the positions in the directions of arrows 108 and 109 so that the disk 103a can be pressed and brought into contact with the disk 103a. The selected disc 103a is a rubber roller 107.
The disc driving device (not shown) for rotating a and 108b conveys the disc in the disc conveying direction 105 which is the same direction as the magazine inserting direction 104, and the rotation driving means 10
Only the disc 103a is conveyed onto the first unit.

Next, upon recording or reproduction, the signal recording surface of the selected disk 103a and the pickup 10
It is necessary to set the interval with 6 to a predetermined value. In this disc device, the entire selected disc 103a is taken out from the magazine 110 and conveyed onto the rotation driving means 101, and then the disc 103a is mounted on the disc mounting surface of the rotation driving means 105 by a clamper member (not shown). At the same time, the rubber rollers 107a and 107b are moved away from the disk 103a in the directions of arrows 108 and 109 in order to release the holding by the disk conveying device, thereby setting the distance between the selected disk 103a and the pickup 106 to a predetermined value and recording or Play.

As an example in which a rubber roller is not used, Japanese Patent Application Laid-Open No. 62-114154 discloses a structure in which a member for holding the main surface of the disk moves the disk together with the holding member to a playing position.

Further, as a second conventional example, as a disk in which the storage portion and the performance portion overlap with each other when viewed from the main surface of the disk, Japanese Utility Model Laid-Open No. 62-83254 and JP-A-6-83254 are disclosed.
3-2003454 and JP-B-63-130950 are mentioned.

[0010]

However, in the loading apparatus shown in FIG. 20 of the first conventional example, it is necessary to take out the entire selected disk 103a from the magazine 110, so that the depth dimension of the apparatus is the minimum. 1
Since the diameter is required to be twice the diameter of No. 03, the depth dimension of the device becomes large, and it cannot be applied to applications where the depth dimension is limited. Further, since a lever kicking device for taking out a disc, a disc conveying device constituted by a rubber roller 107, etc. are arranged between or both sides of the magazine holding portion 115 and the rotation driving means 101, the structure is complicated and miniaturization is difficult. Met. In addition, JP-A-62-11415
The device disclosed in Japanese Patent No. 4 does not have an opening / closing means for the holding portion for opening the disc from the holding member at the magazine storing position or the playing position. The distance required was longer than that required to transport After the disc is projected out of the magazine, it is moved in a direction substantially perpendicular to the disc carrying surface, as shown in FIG.
There is a problem in that the depth dimension becomes large like the example shown in FIG.

A second prior art example, Japanese Utility Model Publication No. 63-1309.
The publication No. 50 describes only the concept of the basic configuration and does not mention the details of a specific disc loading method.

Further, in Japanese Utility Model Laid-Open No. 62-83254 and Japanese Patent Laid-Open No. 63-200354, a magazine has a special structure, and the opening side is opened like a booklet at the time of playing to ensure a complicated operation for ensuring an overlap margin. It is hard to say that we are trying to simplify the configuration at the same time as downsizing.

As yet another problem, in such a CD changer, the disc clamper of the traverse section for reproducing is normally opened in the standby state before taking out the disc from the magazine or in the disc selected state. However, since the disc clamper is rotatably attached to the clamper opening / closing member with some degree of freedom, the stability is poor in the open state,
It is necessary to take anti-vibration measures and there is a problem of wear and abrasion of the contact part due to slight vibration.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a disk loading apparatus capable of reducing the size of the disk apparatus. Further, in the case of downsizing, the driving unit for the opening / closing operation of the disk holding unit and the opening / closing operation of the clamper are shared, thereby simplifying the configuration.

Further, it is intended to stabilize the disc clamper in the standby state or the disc selected state.

[0016]

To achieve this object, a disc loading apparatus of the present invention includes a magazine for storing a plurality of discs at predetermined intervals, an optical pick for recording or reproducing, a turntable and the like. Playing means,
A chassis on which the playing means is placed, a disc holding portion capable of holding both main surfaces of the disc of the magazine, a transfer means for moving the disc holding portion from the inside of the magazine to a recording or reproducing position, and a disc turntable. And a clamper opening / closing member for performing the opening / closing operation of the clamper and for closing / closing the clamper when the disc is in the storage position or the recording / reproducing position in the magazine. Have a configuration.

In addition to the above-mentioned structure, two operations are controlled so that the opening operation of the disk holding portion and the disk clamping operation of the clamper opening / closing member correspond to each other.

[0018]

The present invention has the following actions due to the above-mentioned configuration.

The disc holding portion in the open position at the standby position is inserted into the magazine to pull out the disc from the magazine, and the clamper opening / closing member interlocks with the clamper opening / closing member to interlock with pressing the disc by the opening / closing means of the disc holding portion. Is moved from the clamp position to the open position. The clamper is opened to secure the passage allowance, and the disc is transferred to the reproduction position by the transfer means. Although the disc is clamped by the clamper opening / closing member at the reproducing position, the pressure contact of the disc is released by the opening / closing means of the disc sandwiching portion, so that the disc can be recorded or reproduced.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of a disk transfer mechanism of a disk loading apparatus according to an embodiment of the present invention in a standby neutral position. FIG. 2 is a side view thereof. FIG. 3 is a plan view of the magazine insertion position of the disc transfer mechanism. FIG. 4 is a plan view of the disk transfer mechanism in a disk pull-out neutral position. FIG. 5 is a plan view of a disc recording or reproducing position of the disc transfer mechanism. FIG. 6 is a side view of the clamper opening / closing mechanism in a disc clamped state. FIG. 7 is a side view of the clamper opening / closing mechanism in an open state. FIG. 8 is a side view in a closed state showing the first opening / closing method of the chuck arm. FIG. 9 is a side view of the open state showing the first opening / closing method of the chuck arm. FIG. 10 is a side view in a closed state showing the second opening / closing method of the chuck arm. Figure 1
FIG. 1 is a side view in an open state showing a second opening / closing method of the chuck arm. FIG. 12 is a rear view showing a standby state or a recording or reproducing start state of the opening / closing drive means of the chuck arm and the transfer means of the pickup. 13 shows a state during recording or reproduction, FIG. 14 shows a drive switching state, and FIG. 15 shows a chuck arm drive state. Figure 1
6 shows a method of selecting the disk 30 and ejecting the magazine 27 of the loading device in the embodiment of the present invention, a rear view showing a state in which the magazine is mounted (standby state), and FIG. 17 is a direction of arrow I in FIG. FIG. 18 is a front view showing a state as viewed from above (a magazine is a partial cross section), and FIG. 18 is a cross sectional view taken along the line XX in FIG. 16 in a recording or reproducing state of a disc.

First, a schematic structure of the entire apparatus will be described. 16, FIG. 17, and FIG. 18, the entire apparatus is composed of a storage section for the magazine 27, a traverse section for recording or reproduction, and a disk loading section for selectively ejecting a disk. It is stored in an outer case by leaving a space around it and floating it with a rubber damper and a spring. In this example,
An elevator mechanism for selecting a disk, which is formed in each of the lower part of the frame 51 and the magazine holder 50, moves the traverse portion in a direction substantially perpendicular to the main surface of the disk (hereinafter, referred to as vertical direction) to select the disk 30.
A structure for recording or reproducing a disc by performing a clamping operation by a method to be described later by pulling out a predetermined amount from the magazine to a reproduction position by a disc take-out / transfer mechanism that moves in the vertical direction together with the traverse part Is becoming

Next, the mechanism for disc selection and magazine ejection will be described. The disk 30 is stored in the magazine 27. The magazine 27 is provided with a concave engaging portion 27b and a guide groove 27c. The magazine holder 50 is fixed to the frame 51. The frame 51 is shown in FIG.
The guide grooves 51a, 51b shown in FIG.
51c and the guide groove 5 shown in FIG. 17 on the L surface shown in FIG.
1d, 51e, 51f and 51g are formed respectively. The cam plate 52 shown in FIGS. 16 and 17 has a stepped inclined cam groove 52a shown in FIG. Further, guide shafts 53 and 54 shown in FIG. 17 are planted in the cam plate 52 and slidably engaged with the guide grooves 51a and 51b. Further, the cam plate 55 shown in FIG.
Stepped inclined cam grooves 55a and 55b shown in FIG. 17 are formed. Further, guide shafts 56 and 57 shown in FIG. 17 are planted in the cam plate 55 and slidably engage with the guide grooves 51d and 51e. A spindle motor 33 is attached to the traverse substrate 6 shown in FIG. 17, and guide shafts 58, 59 and 60 are further implanted. This guide shaft 5
8, 59 and 60 are slidably engaged with the guide grooves 51c, 51g and 51f and the inclined cam grooves 5a, 55a and 55b. The turntable 7 shown in FIG. 16 is fixed to the spindle motor 33. The guide shaft 34 is fixed to the traverse substrate 6, and the drive shaft 11 is rotatably provided on the traverse substrate 6. The pickup 10 has one end engaged with the drive shaft 11 and the other end engaged with the guide shaft 34. The 20 to which the worm 62 is fixed is fixed to the magazine holder 50. The drive cam 63 is rotatably provided on a drive cam shaft 64 embedded in the magazine holder 50. Further, the drive cam 63 has a spur gear 6
3a, first cam portion 63c, second cam portion 63e, third
The cam portion 63d and the fourth cam portion 63b are formed respectively. The relay gear 65 is rotatably provided on a relay gear shaft 66 embedded in the magazine holder 50. The relay gear 65 includes a worm wheel 65a and a spur gear 65b.
Is formed, and the worm wheel 65a is attached to the worm 62.
, And the spur gear 65b meshes with the spur gear 63a. The angle 67 is fixed to the column 68, the drive cam shaft 64, and the relay gear shaft 66. The lever 69 is attached to the lever 69.
0 is planted, and the lever support shaft 70 is rotatably attached to the angle 67. The lever 69 has a cam follower 71 slidably contacting the fourth cam portion 63b, a shaft 72 engaging with the guide groove 5b formed in the cam plate 52,
A shaft 73 that engages with a guide groove 55d formed in the cam plate 55
Has been planted. The guide lever 74 is the magazine holder 5
A cam follower 76, which is rotatably attached to the guide lever shaft 75 planted at 0, and is slidably in contact with the third cam portion 63d is planted at one end. The magazine discharge member 77 is slidably provided on guide shafts 78 and 79 which are planted in the magazine holder 50. The ejection spring 80 is provided between the pin 81 implanted in the magazine holder 50 and the magazine ejection member 77. The magazine lock member 82 is rotatably provided on a magazine lock shaft 83 provided on the magazine holder. The leaf spring 84 is fixed to the magazine holder 50 and biases the magazine lock member 82. The unlocking member 85 is rotatably provided on a shaft 86 implanted in the magazine holder 50. The tension spring 87 includes a pin 88 and a lock release member 85 that are implanted in the magazine holder 50.
It is provided between the lock release levers 85 and urges the lock release lever 85 counterclockwise. The stopper pin 48 is planted in the magazine holder 50 and is in contact with the lock releasing member 85. The sub-lever 90 is rotatably provided on a shaft 91 embedded in the unlocking member 85. Further, an abutting portion 90a that abuts the first cam portion 63c is formed at one end of the sub-lever 90, and a convex abutting portion 90b that abuts the lock releasing member 82 is formed at the other end. The torsion coil spring 92 is provided between the lock release member 85 and the sub lever 90, and
Is urged clockwise. The magazine guides 93 and 94 are engaged with the guide groove 2b. A magazine pressing spring (not shown) biases the magazine 27. A frame 51 and a slit detection element 95 are attached to the player case (not shown) and the frame 51, respectively.

The operation of the disk selecting and magazine ejecting mechanism of this embodiment constructed as described above will be described below. First, the state of mounting the magazine 27 will be described. When the magazine 27 is inserted, the magazine lock member 82 rotates to enter the engaging portion 2a and lock the magazine 27. In this state, the magazine 27 is constantly urged by the magazine discharge member 77. Next, a lock detection switch (not shown) operates to give a rotation command to the elevator drive motor 61 shown in FIG. 16 to rotate the elevator drive motor 61. The rotation of the elevator drive motor 61 is controlled by the worm 62 shown in FIG.
Is transmitted to the relay gear 65, and the drive cam 63 is further rotated clockwise. When the third cam portion 63d rotates the guide lever 74 to the state shown in FIG. 16, a position detection switch (not shown) operates to give a stop command to the elevator drive motor 61 to stop it and put it in a standby state. .. Next, the operation of changing from the standby state to the recording or reproducing state will be described. For example, the disc 30 shown in FIG.
When recording or reproducing b, the recording or reproducing switch (not shown) corresponding to the disc 30b is turned on. When a recording or reproducing switch (not shown) is turned on, a rotation command is given to the elevator drive motor 61 shown in FIG. 16 to rotate it. The rotation of the elevator drive motor 61 is transmitted from the worm 62 to the relay gear 65, and the drive cam 63 is further rotated clockwise from the state shown in FIG. At this time, the lever 69 rotates clockwise around the lever support shaft 70 by the driving force of the fourth cam portion 63b, and the lever 69 moves the cam plate 52 in the arrow T direction and the cam plate 55 in the arrow P direction. Move to. The cam plate 52 is the guide shaft 5
8 and the cam plate 55 includes guide shafts 59 and 60, respectively.
Since it is driven in the arrow U direction shown by 7, the traverse substrate 6 also moves in the arrow U direction. When the cam plate 55 moves in the direction of arrow P shown in FIG. 16, the slit detection element 95 detects the slit 96b and gives a stop command to the elevator drive motor 61 to stop it. In this state, the guide shafts 58, 59, 60 have the cam portions 97 shown in FIG.
It has moved to positions b, 98b, and 99b. Next, a disc transfer mechanism (not shown) pulls out the disc 30b in the R direction shown in FIG. 17, moves it substantially coaxially with the turntable 7 and stops it (not shown). From this state, the elevator drive motor 61 rotates again to drive the cam plates 52 and 55 to move the traverse base 11 in the arrow U direction. At this time, the disk 30b is simultaneously rotated by the clamper arm 21 shown in FIG. 18 (the mechanism for moving the clamper arm is not shown), and the disk 30b is clamped by the clamper 62 on the turntable 7. Then, the slit detection element 95 shown in FIG. 16 detects the slit 96c and gives a stop command to the elevator drive motor 61 to stop it. At this time, as shown in FIG. 18, the guide shafts 58, 59, 60 are positioned on the parallel guide portions 58c, 59c, 60c, respectively, and accurately hold the position of the traverse substrate 6. Further, in this state, the disk 30b is clamped at a substantially intermediate position between the disks 30a and 30c, so that the disk 30b does not come into contact with the disks 30a and 1c. Then, the spindle motor 33 rotates the disc 30b, and the pickup 10 shown in FIG.
Recording or reproduction is performed by reading the signal of b.

Next, the disk 30b is moved from the recording or reproducing state and stored in the magazine 27, and then the magazine 2
The operation of ejecting 7 from the magazine holder 50 will be described.
First, the eject switch (not shown) is turned on from the state shown in FIG. 18, and the elevator drive motor 61 shown in FIG.
Give a rotation command to and reverse. The rotation of the elevator drive motor 61 is controlled by the worm 62 and the relay gear 6 shown in FIG.
5, transmitted to the drive cam 63, and causes the third cam portion 63d to rotate the lever 69 (position indicated by the chain double-dashed line) counterclockwise about the lever support shaft 70. When the cam plate 52 is driven in the arrow P direction and the cam plate 55 is driven in the arrow T direction, the inclined cam grooves 5a, 55 of the cam plates 52, 55 shown in FIG.
b and 55c move the traverse substrate 6 in the direction of arrow Q. The clamper arm 21 shown at the same time is the clamper 8
Is separated from the disk 30b (the mechanism for moving the clamper arm is not shown). At this time, the disk 30b is held at the position shown in FIG. 18 (holding member is not shown). The slit 96b shown in FIG. 16 is the slit detection element 95.
When moved to the position of 1, the slit detection element operates to give a stop command to the elevator drive motor 61 to stop the rotation of the elevator drive motor 61 and the operation of the drive mechanism (not shown) of the clamper arm. Next, when the disk transfer mechanism (not shown) is activated to return the disk 30b to the original storage location in the magazine 27, a disk storage completion switch (not shown) working stop command is issued. To complete the operation. Next, the elevator drive motor 61 shown in FIG. 16 rotates again. The worm 62 and the relay gear 6 indicated by the rotation of the elevator drive motor 61
5, transmitted to the drive cam 63, and the third cam portion 63d rotates the lever 69 counterclockwise about the lever support shaft 70. Then, the cam plate 52 is driven in the arrow P direction and the cam plate 55 is driven in the arrow T direction, and the cam grooves 5a, 55b, 55c of the cam plates 52, 55 shown in FIG. 17 move the traverse substrate 6 in the arrow Q direction. When the drive cam 63 rotates counterclockwise from the standby state shown in FIG. 16, the third cam portion 63d actuates the cam follower 76 to rotate the guide lever 74 clockwise around the guide lever shaft 75. Then, the tip end portion 74a of the guide lever 74 is attached to the contact portion 77.
The magazine ejection member 77 is moved by contacting a. Further, the drive cam 63 rotates counterclockwise to bring the first cam portion 63c into contact with the contact portion 90a, whereby the magazine lock releasing member 85 rotates about the shaft 86, and the magazine lock releasing member 85 is rotated. Releases the engagement with the engaging portion 2a. Then, the drive cam 63 rotates counterclockwise and the third
The cam portion 63d drives the cam follower 76 to rotate the guide lever 74 counterclockwise about the guide lever shaft 75. At this time, the magazine ejecting member 77 has the contact portion 77a.
Moves while contacting the guide lever 74, and the magazine 2
7 is ejected from the magazine holder 50. Then, when the magazine 27 is discharged, the discharge completion switch is activated to give a stop command to the drive motor 63 to stop the drive motor 63, and the discharge operation of the magazine 27 is completed.

Next, referring to FIG. 1 to FIG.
The configurations of the disk transfer mechanism and the traverse unit for pulling out and reproducing the data will be described.

The loading slider 1 is disposed on the loading substrate 2 so as to be slidable in the stroke of the disc transportation, and a transport range for transporting the disc from the storage position to the recording or reproducing position is provided on the loading substrate 2 by a long distance. It is regulated by a transfer pin fixed on the loading slider 1 which engages with the hole. The loading board 2 is provided with an elongated hole for slidingly contacting the transfer pin of the loading slider 1, and is fixed to the traverse board 6 on one side surface of the recording or reproducing section from the storage section. The chuck arm 3 is fixed on the loading slider 1 so that the chuck arm 3 can be moved from the inside of the magazine 27 to the recording or reproducing position, and the insertion portion of the magazine 27 has a thin tip so that it can be easily inserted. Therefore, urethane coating is applied, and the disc pressure contact part is made of silicone rubber. In addition, an elongated hole for slidably attaching the slide piece 5 is provided. The lower arm 4 is hinged to the lower surface of the chuck arm 3, and like the chuck arm 3, the insertion portion of the magazine 27 has a thin tip so that it can be easily inserted. The surface contacting the disc is coated with urethane to prevent scratches. The disc press-contact portion is made of silicon rubber. Further, a hole through which the slide piece 5 penetrates is provided, and a step for changing the distance between the slide piece 5 and the chuck arm 3 is provided. Further, a pressure-contacting magnet 40 for performing suction contact with the chuck arm 3 to press the disk is attached to the surface facing the chuck arm 3. Further, by pushing the open / close engaging end portion extended from the rotation support shaft side to the traverse substrate 6 side by the tip end portion of the play chuck rod 23, the lower arm 4 is largely rotated at the time of recording or reproducing to bring it into the open state. The open / close engagement ends are formed on both sides of the bent portion of the arm. The distance is 12 cm
It is about half of 2 cm which is the difference in the transfer distance of the chuck arm 3 to the recording or reproducing position between the disc and the 8 cm disc. The slide piece 5 is slidably mounted on the chuck arm 3, and by moving the extended engagement end portion on the traverse substrate 6, the engagement state with the step of the lower arm 4 is changed so as to move between the pair of arms. The interval of is switched.

The traverse substrate 6 is a substrate of a recording or reproducing mechanism portion for recording or reproducing the disc 30, on which a turntable 7, a traverse motor 9, a pickup 10 and the like are placed, and which is placed above and below the disc storage portion. It is configured to be movable in any direction. Turntable 7
Is fixed to the rotation shaft of a spindle motor 33 for centering and rotating a disc to be recorded or reproduced, and is set so that the signal surface of the disc and the pickup 10 maintain a predetermined distance. .. The clamper 8 presses the disc rotatably by the bias of the magnet provided inside and the clamper arm 21 in order to bring the disc into close contact with the mounting surface of the turntable 7 during recording or reproduction. The outer peripheral portion is rotatably held by. Traverse motor 9
Is a drive source for moving the pickup 10, and is fixed to the back surface of the traverse substrate 6. Pickup 10
Is a device for moving from the inner peripheral portion to the outer peripheral portion at a position apart from the recording surface of the disk by a predetermined distance and sequentially reading the signals on the recording surface. The drive shaft 11 is the rotation transmitted from the drive of the traverse motor 9, and the feed screw portion picks up the pickup 1
0 move or drive rack 13 by worm
The drive is transmitted to and is arranged on the back surface of the traverse substrate 6. The nut piece 12 is the pickup 1
The elastic member is fixed to 0 so as to press the feed screw portion of the drive shaft 11 with a predetermined force, and the rotation of the drive shaft 11 moves the pickup 10. The drive rack 13 is arranged on the back surface of the traverse substrate 6 so as to be movable within a predetermined range, and is biased in the lower right direction by a spring (not shown). The rotation transmitted from the drive gear 14 is transmitted to the load control cam 16 and the play control cam 22 by the rack portions provided at three locations. Further, the rack meshed with the drive gear 14 is biased to face the toothless portion so as not to mesh with each other in the standby state of FIG. 1, and the first tooth of the actual tooth portion has a slightly lower ridge. It has a pointed shape to allow a margin for phase alignment at the beginning of meshing.
The drive gear 14 is rotatably arranged on the back surface of the traverse substrate 6, and has two upper and lower gears.
The worm portion 1 and the helical gear portion are meshed with each other, and the spur gear portion near the traverse substrate 6 is meshed with the rack portion of the drive rack 13. The drive switching arm 15 is rotatably arranged on the back surface of the traverse substrate 6 and has one end engaged with the elongated hole portion of the drive rack 13. A rotation operation is performed by abutting one end of the nut piece 12 to move the drive rack 13 in the upper left direction, and the engagement between the rack portion of the drive rack 13 and the drive gear 14 is started. The load control cam 16 is rotatably arranged on the back surface of the traverse substrate 6, and is connected to the rack portion of the drive rack 13 by two cam surfaces which are always meshed with each other and are formed by a rotating operation. Before and after insertion of the magazine 27, and the lifter 19 is moved up and down, and the clamper connecting rod 2
The clamper arm 21 is also opened and closed via 0. The connecting link 17 is rotatably arranged on the upper surface of the traverse substrate 6 and is in sliding contact with the cam surface of the load control cam 16 by a cam follower pin provided at one end, and transmits the drive to the load chuck rod 18. Load chuck rod 18
Is arranged on the back surface of the traverse substrate 6 so as to be movable within a predetermined range, and is formed by extending the portion engaged with the slide piece 5 to the upper surface of the traverse substrate 6. The lifter 19 is moved up and down by the connecting link 17 to move up and down. Further, a portion that engages with the slide piece 5 is provided with a rib that regulates the slide piece 5 even in the vertical direction, thereby suppressing the generation of an unnecessary gap in the chuck arm 3 portion. Further, the base surface of the engaging portion and the upper surface of the traverse substrate 6 are set at the same height and chamfered so that the slide piece 5 is not caught when the slide piece 5 moves from the standby position to the recording or reproducing position. .. The lifter 19 is rotatably attached to the bent portion of the traverse substrate 6 on the magazine 27 side, and one end thereof moves up and down to support from below the loaded disc when ascending, and obstruct recording or reproducing of the disc when descending. The disk is evacuated below the disk mounting surface of the turntable 7 so that there is no The disk supporting surface is soft and smooth so as not to scratch the main surface of the disk, and chamfered so that the disk end surface is not caught during loading.

A cam follower pin is provided at one end of the clamper connecting rod 20 and is slidably contacted with the load control cam 16, and an elongated hole provided in the vicinity thereof is inserted into the shaft of the load control cam 16. The other end has a clamper arm 21.
And transmits the drive of the load control cam 16. The clamper arm 21 rotates about the bending portions on both sides of the upper portion of the traverse substrate 6 as a rotation support shaft, and the clamper 8 is rotatably arranged at the tip end portion. The play control cam 22 is rotatably arranged on the back surface of the traverse substrate 6,
It is always meshed with the rack portion of the drive rack 13. There are two cam surfaces formed inside, and the opening / closing operation of the lower arm 4 and the rotation operation of the play assist lever 24 are performed via the play chuck rod 23. Play chuck rod 2
3 is attached to the back surface of the traverse substrate 6 so as to be slidable within a predetermined range, and is provided with a cam follower pin at one end to move in the left-right direction. Further, the other end is formed so as to extend to the upper surface of the traverse substrate 6, and the tip end thereof abuts the lower arm 4 to open and close the lower arm 4. In addition, the tip of the chuck arm 3 has a difference in transfer distance (2 cm) between the recording and reproducing positions of a 12 cm disc and an 8 cm disc.
It is set to about half the length. Play assist lever 2
4 is a rotatably arranged rear surface of the traverse substrate 6, and a cam follower pin provided at one end is slidably in contact with the cam surface of the play control cam 22, and the other end is rotated so as to rotate the rising surface of the bending portion and the play chuck rod. The play chuck rod 2 by the play control cam 22 is locked by the protrusion 23.
After the rightward movement of 3 is completed, the play chuck rod 23
Lock the position to the right. Disc guide R25
Is fixed to the right side of the upper surface of the traverse substrate 6 to guide the disc during loading, and a gap is formed in the vicinity of the height of the disc mounting surface of the turntable 7 so as not to come into contact with the disc during rotation during playing. (See Figure 8). The disc guide L26 is also fixed to the upper surface left side of the traverse substrate 6 in the same configuration as the disc guide R25.

The magazine 27 is held by a magazine holder 50 (see FIG. 16, which will be described later), and stores the disks 30 at intervals of about 4 mm centered with the upper surface as a label surface. Since the chuck arm 3 and the lower arm 4 are inserted in the upper right portion, the thickness of the chuck arm 3 is reduced by an amount substantially equal to the width of the chuck arm 3 in the moving direction. The partition plate 28 is arranged inside the magazine 27 to regulate the space between the disks 30, and the vicinity of the entrance is thinned so as not to come into contact with the disk 30 for recording or reproducing when it rotates. Also the disk 30
Are engaged from both sides before the central part to facilitate guiding during loading. The tip of the insertion part is chamfered,
Also, a non-woven fabric is attached so as not to scratch the disc surface. The disc pressing spring 29 has one end fixed to the magazine 27 so that the stored disc can be pressed and held from the outer peripheral portion. Further, the pressing force is set so as not to interfere with the movement of the disk 30 that is pressed against the chuck arm 3 and the lower arm 4 and pulled out. Disc 30 is magazine 2
7, the chuck arm 3 and the lower arm 4 are pressed into contact with each other, and the storage section and the playing position are moved. The loading motor 31 is fixed to the loading substrate 2 via a mounting angle, and is a drive source for transferring the loading slider 1 from the storage position to the recording or reproducing position.

The loading drive gear 32 is rotatably fixed to the mounting angle, and the loading motor 3
The rotation of No. 1 is transmitted via a reduction gear, and the loading slider 1 is transferred by the meshing relationship with the rack portion of the loading slider 1. The disc detection sensor A43 is arranged in the vicinity of the insertion portion of the magazine 27 holding portion to check the pulled-out disc and the careless magazine 27 of the disc 30.
Detects whether there is a jump out of. The disc detection sensor B44 detects the completion of movement of the 12 cm disc to the recording or reproduction position, and the disc detection sensor C45 detects 8
cm Detection of completion of moving to the recording or playback position of the disc.

The pressing magnet 40 is fixed on the lower arm 4 between the chuck arm 3 and the chuck arm 3 to attract the chuck arm 3. The gap urging magnet 41 is arranged in a position facing the traverse substrate 6 in the vicinity of the chuck arm 3 mounting portion of the loading slider 1 and urges the urging plate 42 downward by a suction force. The biasing plates 42 are arranged on the upper surface of the traverse substrate 6 so as to be separated from each other by a predetermined distance in correspondence with the parallel transfer range of the gap biasing magnet 41, and are always attracted by the gap biasing magnet 41.

The spindle motor 33 is the traverse substrate 6
The turntable 7 is rotatably fixed to the rotary shaft by being attached to the back surface of the motor via a motor receiving plate. The guide shaft 34 is arranged on the back surface of the traverse substrate 6 in parallel with the drive shaft 11, and is in sliding contact with the other end of the pickup 10 to guide it.

The operation of the loading device of the CD changer of the present embodiment having the above-mentioned structure will be described below.

First, a method of transferring a disc at the time of loading will be described with reference to FIGS. In the standby state of FIG. 1, the loading slider 1 and the chuck arm 3 have the disk 30 and the magazine 27 in the plan view.
The clamper 8 is waited at a position where it does not come into contact with the turntable 7, and the clamper 8 is lowered to the turntable 7 and closed. Further, the chuck arm 3 and the lower arm 4 are opened at a distance slightly larger than the thickness of the disk 30. In this state, the traverse substrate 6 can be moved up and down by driving the elevator by the above-described method for selecting a recording or reproducing disc. It should be noted that the difference between the vertical height of the disc set by the chuck arm 3 and the lower arm 4 in which the disc is loosely inserted and the height of the disc mounting surface of the turntable 7 is almost equal to that of the magazine 2.
It is set to be the same as the disk storage interval of 7.

When the disk 30 is selected and the height of the traverse substrate 6 is set, the loading motor 31 is energized to move the loading slider 1 in the arrow direction. At this time, a switch for detecting that the loading slider 1 or the chuck arm 3 has been moved from the standby position to the magazine 27 side always detects ON when the loading slider 1 or the chuck arm 3 is located on the magazine 27 side from the standby position. Magazine 2 of chuck arm 3 and lower arm 4
The 7 insertion portions are inserted at heights close to the upper surface and the lower surface of the selected disk 30, respectively, and the state shown in FIG. 3 is obtained. In FIG. 3, when the loading slider 1 has moved a predetermined distance, the movement is locked by a stopper, and the loading motor 31 is de-energized by the end of the set time or the detection of the change of the current value and the change of the rotational speed, and the both ends. Is short-circuited and the motor brake is applied. FIG. 6 shows the relationship between the magazine 27 section and the clamper 8 of the traverse substrate 6 in this state. When the load control cam 16 is driven by a method to be described later, the clamper connecting rod 20 is moved in the arrow direction by the cam follower pin 20a, the clamper arm 21 is rotated clockwise by the connecting pin portion 20b, and the clamper 8 turns the turntable 7. 7 and the state shown in FIG. 7 is reached. Even if the disk 30a is transferred in parallel by raising the clamper 8 as shown in FIG. 7, it does not come into contact with the turntable 7 or the clamper 8.

When the state before and after the operation of the load control cam 16 is viewed from another side, the operation is performed as shown in FIGS. 9 to 8. FIG. 9 shows the chuck arm 3 and the lower arm 4.
Is transferred to the magazine 27 side, the chuck arm 3 is engaged with the slide piece 5 and the load chuck rod 18a in the height direction, and the gap urging magnet 41 and the urging plate 42 are engaged. The suction is configured to reduce the positional deviation due to the gap in the vertical height direction. When the load control cam 16 is driven, the load chuck rod 18 is moved in the direction of the arrow and the lower arm 4 is moved clockwise along the surface of the slide piece 5 by the attraction force of the magnet 40 for pressure contact, as shown in FIG. Then, the disk 30a is pressed and pressed. Further, the lifter 19 is rotated clockwise by 18b of the load chuck rod 18, and the tip end portion is higher than the centering ring portion of the turntable 7 and slightly lower than the storage height determined by the position regulation of the partition plate 28 of the disc 30a. Be moved to.

Next, referring to FIG. 4, the loading motor 3
By energizing in the opposite direction of 1, the chuck arm 3 and the lower arm 4
Thus, the disk 30a is pulled out from the magazine 27 in the arrow direction. At this time, the lifter 19 has the disc 30a.
Is supported by the partition plate 28 and the lower arm 4, and therefore is not in contact with the disk 30a. When the chuck arm 3 moves to the standby position, the disc detection sensor A
Whether or not there is a disc of the selected height can be determined by whether or not there is a detection of 43. If there is no disk, at this point, the state of FIG. 1 is restored for the next height selection.
When the disc 30a is detected, the chuck arm 3 and the lower arm 4 continuously move the disc 30a to the recording or reproducing position in parallel, and the state shown in FIG. 5 is obtained. Next, the disk 30a transferred in the process of moving from FIG. 4 to FIG. 5 is guided on both sides and the upper surface by the disk guide R25 and the disk guide L26, and only a small section after being separated from the vertical support by the partition plate 28. The lifter 19 receives the support from below and transfers it to the recording or reproducing position. Therefore, although the disc support surface of the lifter 19 is designed so as not to scratch the disc,
Further, the contact position of the disc 30a is limited to the non-signal recording portion on the inner peripheral portion of the TOC area. When the disc 30a is returned to the magazine 27, the disc 30a supported by the lifter 19 is guided by the chamfering of the insertion portion of the partition plate 28 and transferred into the magazine 27. It is confirmed by the disc detection sensor B44 whether the disc 30a transferred in FIG. 5 has reached the recording or reproducing position, the loading motor 31 is de-energized, both ends are short-circuited again, and the motor brake is applied. Next in FIG.
Disk 3 transferred to the recording or playback position at 0
Reference numeral 0a indicates a state in which the chuck arm 3 and the lower arm 4 are in pressure contact with each other, and the entire recording or reproducing section arranged on the traverse substrate 6 is moved upward by about half the disc storage interval by a method described later, and then as shown in FIG. While lowering the clamper 8, the lower arm 4 is rotated clockwise through the play chuck rod 23 by driving the play control cam 22, and the lifter 19 is lowered to the position shown in FIG. Therefore, as shown in FIG. 11, the disc 30a is guided by the centering ring portion of the turntable 7 along the disc guide R25 and the disc guide L26, and the clamper 8 finishes the descending operation and presses the disc 30a. In this process, the disc 30a is inserted into the centering ring of the turntable 7 and the clamper 8 is lowered from above the disc 30a so that the disc 30a cannot be removed from the centering ring. Cam control of the play control cam 22 and the load control cam 16 is performed so that the rotation operation is performed and the disc pressure contact is released. In this state, the disc 30a is rotatable on the recording or reproducing section side, but the discs 3 stored in the magazine 27 are
Since the distance between 0 and the pulled-out disc 30A is lower than the lower part, the entire recording or reproducing section arranged on the traverse substrate 6 is moved upward by about half of the disc storage interval so that the disc intervals are substantially equalized. Then, it becomes possible to record or reproduce.

Therefore, in the standby state for loading or the disc selected state as in the embodiment of the present invention, the gap between the chuck arm 3 and the lower arm 4 is opened, the clamper 8 is lowered, and the lifter 19 is lowered, so that the loading is performed. In this state, the lower arm 4 presses the disc, the clamper 8 is raised, and the lifter 19 is also raised, so that loading with good operation can be performed. In addition, since the clamper 8 is lowered even in an unused state such as a standby state, it is possible to prevent microvibration of the clamper 8 portion which is likely to occur in the unclamped state (open state of the clamper 8) and generation of shavings generated as a result. be able to. In addition, the detection of turning on the range on the magazine 27 side from the standby position of the chuck arm 3 enables not only the standby position to be detected but also the magazine 27.
It is possible to immediately determine the position of the chuck arm 3 in which the vertical movement of the recording or reproducing unit cannot be performed by the contact with the.

Also, when an abnormality occurs when the disc 30a is transferred to the position shown in FIG. 5 and the disc detection sensor B44 cannot detect the disc 30a and the disc 30a is displaced midway, the lower arm 4 is pressed once. In the released state, a predetermined amount (for example, until the disc detection sensor C45 is closed by the lower arm 4 or the chuck arm 3), the chuck arm 3
Is moved in the return direction, the disk 30a is brought into a pressure contact state again, and then the disk 30a is transferred to the recording or reproducing position, so that a retry can be performed when a transfer error occurs. At this time, the disk 30
The outer peripheral portion of the disk 30a is locked by an overshoot preventing piece provided on the clamper arm 21 so that a does not overshoot.

Next, a method of switching between the recording / reproducing state and the loading state of the disc will be described with reference to FIGS. FIG. 12 is a rear view of the recording or reproducing unit in the recording or reproducing start state by the above-mentioned method. In this state, the spindle motor 33 is energized to rotate the disc in a predetermined manner and the traverse motor 9 is rotated forward. As a result, the drive reduced in speed by the reduction gear is transmitted to the drive shaft 11, the feed screw portion 11b drives the pickup 10, and the pickup 10 is transported for recording or reproducing operation as shown in FIG. Further, in this state, the drive rack 13 is not meshed with the drive gear 14, so that the drive rack 13 is not moved. Further, the play chuck rod 23 receives a reaction force from the lower arm 4, but since the protrusion 23c and the rising surface 24b of the bent portion of the play assist lever 24 are locked, the play control cam 22
No force is applied to the roller portion 23a that is in sliding contact with the cam surface of the roller. Therefore, the load on the drive rack 13 when the play control cam 22 is rotated can be reduced.

Next, in FIG. 14, when the traverse motor 9 is rotated in the reverse direction, the feed screw portion 11b of the drive shaft 11 of the nut piece 12 is engaged so that the pickup 10 is gradually transferred to the inner circumference and the tip portion 12a of the nut piece 12 is moved. And 12a of the drive switching arm 15 are brought into contact with each other. After the contact, the nut piece 12 is further moved in the arrow direction, so that the drive switching arm 15 is rotated clockwise and the drive rack 13 is started to move in the opposite direction by the arrow 15b. When the movement of the drive rack 13 is started, the engagement of the drive gear 14 and the rack, which were in the intermittent portion, is started. In addition, the nut piece 12a of the nut piece 12 should have the same phase.
The position of the feed screw portion 11b of the drive shaft 11 is set. Further, when the drive rack 13 and the drive gear 14 start to mesh with each other, the nut piece 12a of the nut piece 12 approaches the position where the ridge of the feed screw portion of the drive shaft 11 is gradually lowered, and the thrust for transferring the pickup 10 is gradually lost. However, when the drive switching arm 15 is rotated clockwise, 15c further pushes 12c in the direction of the arrow, so that the pickup 10 is transferred to the innermost position shown in FIG. At this time, the nut piece 12a of the nut piece 12 is completely disengaged from the feed screw portion 11b of the drive shaft 11, but is not moved from the innermost peripheral portion due to the engagement of 12c and 15c, and the position is maintained. Drive rack 13
Is further moved in the direction of the arrow, the load control cam 16 and the play control cam 22 are rotated counterclockwise, and when moved to the state of FIG. 15, the traverse motor is moved by the position detection switch (not shown) of the drive rack 13. The reverse rotation of 9 is stopped.

By this series of operations, the locked state between the play assist lever 24 and the play chuck rod 23 is released, and the play chuck rod 23 is also moved along the cam surface of the play control cam 22. By this operation, the disc 30a of the lower arm 4 is pressed against the upper surface of the traverse substrate 6. Further, the rotation of the load control cam 16 causes the connecting link 17 and the clamper connecting rod 20 to move,
The lifter 19 and the clamper 8 are raised. If the transfer state of the disc 30a is the movement state of the chuck arm 3 on the magazine 27 side, the opening operation of a degree slightly larger than that of the disc 30a of the lower arm 4 is performed.

Further, if the traverse motor 9 is rotated in the normal direction, the process reverse to the above-mentioned operation can be followed and the recording or reproduction start state or the standby state shown in FIG. 12 can be made again.

According to the structure of this embodiment, the members such as the chuck arm 3 and the lower arm 4 for taking out the disk 30 are formed only on one side of the opening of the magazine 27 so as to be moved by the loading slider 1. It is advantageous in downsizing as compared with a mechanism such as a drive mechanism which is spread over both sides.

Further, since the member for taking out the disk 30 and the means for transferring to the recording or reproducing position are common, the structure is simple, and it is not necessary to provide the magazine 27 with a disk kicking member or the like.

Next, a method of switching the operation between the recording / reproducing state and the loading state of the disc will be described with reference to FIGS. FIG. 12 is a rear view of the recording or reproducing unit in the recording or recording or reproducing start state by the above-mentioned method. By rotating, the drive reduced by the reduction gear is transmitted to the drive shaft 11 and the feed screw portion 11
The pickup 10 is driven by b, and the pickup 10 is moved to perform a recording or reproducing operation as shown in FIG. Further, in this state, the drive rack 13 is not meshed with the drive gear 14, so that the drive rack 13 is not moved. Further, the play chuck rod 23 receives a reaction force from the lower arm 4, but since the protrusion 23c and the rising surface 24b of the bent portion of the play assist lever 24 are locked, the play chuck rod 23 is in sliding contact with the cam surface of the play control cam 22. No force is applied to the roller portion 23a to be broken. Therefore, the load on the drive rack 13 when the play control cam 22 is rotated can be reduced. Next, in FIG. 14, when the traverse motor 9 is rotated in the reverse direction, the feed screw portion 11b of the nut piece 12 drive shaft 11 is rotated.
The pickup 10 is gradually transferred to the inner circumference by the engagement of, and the tip end portion 12a of the nut piece 12 and the drive switching arm 15a are brought into contact with each other. After the contact, the nut piece 12 is further moved in the arrow direction, so that the drive switching arm 15
Is rotated clockwise and driven rack 13 is driven by 15b.
Starts moving in the direction opposite to the arrow. When the movement of the drive rack 13 is started, the engagement of the drive gear 14 and the rack, which were in the intermittent portion, is started. The positions of 12a of the nut piece 12 and the feed screw portion 11b of the drive shaft 11 are set so that the phases of the meshes coincide with each other. Further, when the drive rack 13 and the drive gear 14 start to mesh with each other, the nut piece 12a of the nut piece 12 approaches the position where the ridge of the feed screw portion of the drive shaft 11 is gradually lowered, and the thrust for transferring the pickup 10 is gradually lost. However, when the drive switching arm 15 is rotated clockwise, 15c further pushes 12c in the direction of the arrow, so that the pickup 10 is transferred to the innermost position shown in FIG. At this point, 12a of the nut piece 12 is completely disengaged from the feed screw portion 11b of the drive shaft 11, but 12c and 15
It does not move from the innermost peripheral portion due to the engagement of c, and its position is maintained. The drive rack 13 is further moved in the direction of the arrow, and the load control cam 16 and the play control cam 2 are moved.
When 2 is rotated counterclockwise and moved to the state of FIG. 15, the reverse rotation of the traverse motor 9 is stopped by the position detection switch (not shown) of the drive rack 13.

By this series of operations, the locked state between the play assist lever 24 and the play chuck rod 23 is released, and the play chuck rod 23 is also moved along the cam surface of the play control cam 22. By this operation, the disc 30a of the lower arm 4 is pressed against the upper surface of the traverse substrate 6. Further, the rotation of the load control cam 16 causes the connecting link 17 and the clamper connecting rod 20 to move,
The lifter 19 and the clamper 8 are raised. Further, when the transfer state of the disk 30a is the transfer state of the chuck arm 3 to the magazine 27 side, the lower arm 4 is engaged with the load chuck rod 18 so that the lower arm 4 performs a slightly larger opening operation than the disk 30a.

Further, if the traverse motor 9 is rotated in the normal direction, the process reverse to the above-described operation can be followed and the recording or reproduction start state or the standby state shown in FIG. 12 can be resumed. Therefore, the opening / closing operation of the lower arm 4, the up / down operation of the clamper 8 and the up / down operation of the lifter 19 can be performed using the transfer mechanism of the traverse motor 9 and the pickup 10 without separately providing a motor and a drive mechanism. it can. Further, in this configuration, since it is not necessary to use a solenoid or the like for switching, the switching timing of each mode can be mechanically controlled by adjusting the load control cam 16 and the play control cam 22.

According to the configuration of this embodiment, the pickup 1
Drive rack 13 by moving 0 to the innermost circumference
The movement of the pickup 10 is released by the drive switching arm 15 and the clamper arm 21 is opened and the lifter 1 is opened.
9 and the chuck arm 3 and the lower arm 4 perform the pressure contact operation of the disk 30a. Further, if the traverse motor 9 is rotated in the reverse direction, the recording or reproduction of the disk 30a is performed by following the procedure reverse to the above-described operation. Therefore, a series of operations required for transferring and reproducing the disk 30a are mechanically continuously performed, so that the operation can be easily controlled by the microcomputer or the like. Further, since the opening and closing of the clamper arm 21 and the pressure contact of the chuck arm 3 and the lower arm 4 are driven via their respective dedicated cam gears, their respective timings can be freely set.

Further, since the operation of opening the lower arm 4 and the operation of closing the clamper arm 21 are associated with a predetermined timing and direction by the drive rack 13 and the load control cam 16 or the play control cam 22, continuous operation without waste. It can be performed.

[0052]

As described above, according to the disk loading device of the present invention, the opened disk holding portion at the standby position is inserted into the magazine for pulling out the disk from the magazine, and the disk holding means opens / closes the disk. The clamper opening / closing member moves the clamper from the clamp position to the open position in tandem with the pressure contact, and the clamper opening / closing member performs the clamping operation at the playback position to release the pressure contact of the disk by the opening / closing means of the disk holding part. By doing so, the clamper can be configured to be closed in the standby state or the disc selected state, and chattering or scraping due to slight vibration of the disc clamper can be prevented.

[Brief description of drawings]

FIG. 1 is a plan view of a neutral position of a disk transfer mechanism of a disk loading device according to an embodiment of the present invention.

FIG. 2 is a side view of the disk transfer mechanism of the disk loading device according to the embodiment of the present invention in a standby neutral position.

FIG. 3 is a plan view of a magazine insertion position of the disc transfer mechanism.

FIG. 4 is a plan view of the disk pulling-out neutral position of the disk transfer mechanism.

FIG. 5 is a plan view of a disc recording or reproducing position of the disc transfer mechanism.

FIG. 6 is a side view of the clamper opening / closing mechanism in a disc clamped state.

FIG. 7 is a side view of the clamper opening / closing mechanism in an open state.

FIG. 8 is a side view in a closed state showing a first opening / closing method of the chuck arm.

FIG. 9 is a side view in an open state showing a first opening / closing method of the chuck arm.

FIG. 10 is a side view in a closed state showing a second opening / closing method of the chuck arm.

FIG. 11 is a side view of the chuck arm in an open state showing a second opening / closing method.

FIG. 12 is a rear view showing the opening / closing drive means of the chuck arm and the transfer means of the pickup (standby state and recording or reproduction start state).

FIG. 13 is a rear view showing the opening / closing drive means of the chuck arm and the transfer means of the pickup (state during recording or reproduction).

FIG. 14 is a rear view showing the opening / closing drive means of the chuck arm and the transfer means of the pickup (drive switching state).

FIG. 15 is a rear view showing the opening / closing drive means of the chuck arm and the transfer means of the pickup (chuck arm drive state).

FIG. 16 is a rear view (standby state) showing a state in which a magazine is mounted, showing a disc height selection method and a magazine ejection method.

FIG. 17 is a front view showing the state seen from the direction of arrow I in FIG. 16 (the magazine is a partial cross section).

FIG. 18 is a diagram showing a recording or reproducing state of the disc.
XX cross-sectional view

FIG. 19 is a front sectional view of a magazine used for a conventional CD changer.

FIG. 20A is a top view of the principle diagram of a conventional CD changer loading device, and FIG. 20B is a side view of the principle diagram of a conventional CD changer loading device.

[Explanation of symbols]

 1 Loading Slider 2 Loading Substrate 3 Chuck Arm 4 Lower Arm 5 Slide Piece 6 Traverse Substrate 7 Turntable 8 Clamper 9 Traverse Motor 10 Pickup 11 Drive Shaft 12 Nut Piece 13 Drive Rack 14 Drive Gear 15 Drive Switch Arm 16 Load Control Cam 18 Load Chuck rod 21 Clamper arm 22 Play control cam 23 Play chuck rod 27 Magazine 30 Disc

Claims (2)

[Claims] 1. A magazine for accommodating a plurality of disks at predetermined intervals, a performance means including an optical pick for recording or reproduction, a turntable, etc., a chassis on which the performance means is mounted, and a disk for the magazine. A disc holding part capable of holding both main surfaces, a transfer means for moving the disc holding part from the inside of the magazine to a recording or reproducing position, a clamper for pressing the disc against the turntable surface, and an opening / closing operation of the clamper, And a clamper opening / closing member that closes the clamper when the disc is in the storage position or the recording / reproducing position in the magazine. 2. The disk loading device according to claim 1, wherein two operations are controlled so that the opening operation of the disk holding portion and the disk clamping operation of the clamper opening / closing member correspond to each other.