JPH11162080A - Selecting device of information recording disk and driving device of information recording disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the selection failure or the positional slippage of a disk by holding the selecting position to select any one tray for driving an information recording disk among a plurality of trays. SOLUTION: A plurality of trays capable of respectively supporting the information recording disks are disposed in parallel and so as to be movable in the parallel direction. A selection mechanism 81 is provided for selecting any one among the plurality trays while being movable to the selecting positions corresponding to each tray. A movement mechanism 82 is provided for making the tray move so that the information recording disk of the tray selected by the selection mechanism 81 is put in the derivable state. A holding mechanism 83 is provided for holding the selection mechanism 81 at the position selected by the selection mechanism 81 in the movement of the movement mechanism 82.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording disk selecting device for selecting any one of information recording disks supported by a plurality of trays to make it drivable and an information recording disk selecting device. The present invention relates to an information recording disk drive device comprising:

[0002]

2. Description of the Related Art Conventionally, for example, there is a compact disc (hereinafter referred to as a CD) as an information recording disc, and a plurality of CD drives are used as a CD drive for reproducing the CD.
CD that selectively reproduces CD from D
There is a changer.

[0003] In this CD changer, for example, as described in Japanese Patent No. 2620146, trays for mounting CDs are vertically arranged in a plurality of stages in a changer body, and sideways of these trays are arranged. A drive arm is provided which is capable of moving forward and backward with respect to the tray with an arm shaft provided upright at the fulcrum. Drive arm is CD
A drive unit for rotating the turntable, and a head unit for reproducing a CD.

In order to select a tray (CD) for reproduction, the tray is moved to form a drive space in which a drive arm can enter below the selected tray, and the drive arm is mounted on the drive. After moving up and down to a height that allows entry into the drive space, the drive arm is entered into the drive space to play a CD in the selected tray.

In the CD changer described in the above publication, the vertical movement of the tray, the vertical movement of the arm, and the advance / retreat of the arm are performed by separate mechanisms. The mechanism for moving the tray up and down is provided with a motor corresponding to each tray, and drives the selected tray to raise the selected tray to form a drive space below the tray. .

[0006]

However, in the prior art, the selected tray is raised by driving the motor corresponding to the selection to form a drive space below the tray. No mechanism for mechanically holding the tray selection position is provided, and there is a possibility that the position of the tray may be shifted due to vibration or the like.

Furthermore, since the vertical movement of the tray and the vertical movement of the arm are performed by separate mechanisms and are not linked, when the tray is selected and the reproduction is performed, the position where the tray moves and the arm move. There is a possibility that the position may be shifted from the height position, or the position may be shifted even after the movement due to vibration or the like.

[0008] As described above, when a tray selection failure or misalignment occurs, the drive arm cannot contact the drive space below the selected tray by contacting the tray, or can enter the drive space. Even so, there arises a problem that the chuck or rotation of the CD becomes defective and the reproduction of the CD cannot be reliably performed.

The present invention has been made in view of the above points, and has an information recording disk selecting device capable of holding a tray selection position and preventing a tray selection failure and displacement, and an information recording disk selecting device. To provide an information recording disk drive device.

[0010]

According to the present invention, there is provided an information recording disk selecting apparatus which is provided in parallel and is movably arranged in the parallel direction so as to be capable of supporting an information recording disk. A tray, a selection mechanism that can be moved to a selection position corresponding to each of the trays, and a selection mechanism for selecting any one of the plurality of trays for driving the information recording disk; and moving the tray, A moving mechanism for driving the information recording disk of the selected tray into a driveable state, and holding means for holding the selecting mechanism at a position selected by the selecting mechanism when the moving mechanism operates.

[0011] Any one of the plurality of trays is selected by the selection mechanism, and the tray is moved by the moving mechanism to make the information recording disk of the selected tray drivable. When the tray is moved by the moving mechanism, the selection mechanism is held at the selected position by the holding means, so that the selected position does not shift due to vibration or the like, and the tray selection failure and misalignment are prevented.

According to a second aspect of the present invention, in the information recording disk selecting apparatus, each tray has an operation receiving portion on both sides of each tray.
Both sides of the plurality of trays are moved in a direction parallel to the trays by the operation of the selection mechanism, and adjacent to the sides of the selected trays through the operation receiving portions of the trays by the operation of the movement mechanism. An operating body for forming a space is provided.

The operating members disposed on both sides of the plurality of trays are moved in the tray parallel direction by the operation of the selecting mechanism, and the drive members are arranged adjacent to the trays selected in the parallel direction by the operation of the moving mechanism. By forming the space, the selection of the tray is ensured by the operating body whose selection position is held by the holding means via the selection mechanism.

According to a third aspect of the present invention, in the information recording disk selecting apparatus according to the first or second aspect, the holding means is moved to any one of the selected positions by the operation of the selecting mechanism. A selection groove that has a holding pin that is moved in a fixed direction from any of the selected positions by the operation of the mechanism, and that allows the holding pin to move to any of the selected positions, and each of the selected positions of the selection groove And a comb-like holding groove formed with a holding groove portion for each tray, which is communicated in a predetermined direction from the holding pin to allow the holding pin to advance and retreat, and to hold the holding pin in the entering state.

A holding pin and a holding groove are provided as holding means, and the holding pin is moved to any selected position in the selecting groove of the holding groove by the operation of the selecting mechanism, and is selected by the operation of the moving mechanism. The selected position is reliably held by entering the holding groove portion of the holding groove for each tray from.

According to a fourth aspect of the present invention, there is provided an information recording disk drive device, wherein the information recording disk selecting device is moved in the tray parallel direction by the operation of the selecting mechanism and the operation of the moving mechanism. And a drive arm which is moved forward and backward with respect to the drive position of the information recording disk on the tray selected by the above.

The operation of the selection mechanism moves the drive arm in the direction parallel to the trays, and the operation of the movement mechanism moves the drive arm forward and backward with respect to the drive position of the information recording disk of the selected tray, thereby allowing the tray to be moved. The drive arm and the selection mechanism are linked to each other, and are integrally held by a holding means, so that the drive of the information recording disk is ensured.

An information recording disk drive according to a fifth aspect of the present invention is the information recording disk drive according to the fourth aspect, further comprising a drive device main body, and a plurality of trays are incorporated in the drive device main body. .

By incorporating a plurality of trays into the drive device body, an information recording disk drive device that selectively drives from a plurality of information recording disks can be downsized.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

In this embodiment, a CD player is used as an information recording disk drive for handling a compact disk (hereinafter referred to as a CD) dedicated to reproduction as an information recording disk, and one CD is selectively selected from a plurality of CDs. A CD changer for reproducing a CD will be described.

In FIG. 3, the CD changer has a body 1 as a drive device main body, and the body 1 is configured to be incorporated in an audio equipment. Aircraft 1
A bottom plate 2 having a substantially square shape is provided. Side plates 3 and 4 are erected from both sides of the bottom plate 2, and an upper plate 5 is connected to the side plates 3 and 4 on both sides, and a CD mounting / removing opening 6 is formed on the front surface. ing.

As shown in FIG. 4 (the upper part of the drawing
, The lower part is the rear part of the fuselage 1),
The front part in the fuselage 1 has a plurality of vertical stages (FIGS. 3 and 7).
A tray 11 is provided on the side of the body 1, and a selection plate 12 is provided at the rear of the body 1 so as to be movable up and down. 1
A loading mechanism 13 for moving the two trays 11 forward and backward through the attachment / detachment port 6 is provided. An information recording disk selecting device 14 for selecting the tray 11 for playing a CD or the tray 11 for loading is provided at the bottom and both sides of the body 1. And a drive arm 15 for reproducing a CD from the selected tray 11 is provided on the selection plate 12.

Next, the structure of the tray 11 will be described.

As shown in FIG. 5 and FIG.
Has a tray plate 21 for mounting a CD, and a holder plate 22 for holding the tray plate 21 slidably in the front-rear direction. The tray plate 21 and the holder plate 22 are formed in substantially the same shape in plan view, and formed with cutouts 23 and 24 that allow the drive arm body 15 that has moved to the drive position from the center to the rear to move vertically. Have been.

A concave engaging step 25 is formed at a rear portion of one side of the tray plate 21 corresponding to the loading mechanism 13, and an engaging groove 26 opening laterally is formed at a front side of the engaging step 25. A locking hole 27 penetrating in the vertical direction is formed on the side of the engagement step 25.
Are formed.

Guide rollers 28 as a pair of front and rear operation receiving portions are rotatably supported on both sides of the holder plate 22. Each guide roller 28 is formed on the side plates 3 and 4 of the machine body 1 along the vertical direction. The guide groove 29 (see, for example, FIG. 3) is vertically movably engaged.

A stopper 30 for restricting the rear movement of the tray plate 21 is formed upright at a rear portion of the holder plate 22 on one side corresponding to the loading mechanism 13. On the lower surface of the holder plate 22 in the vicinity of the stopper 30, a leaf spring 31 whose rear end is a free end having elasticity upward is fixed, and the rear end of the leaf spring 31 is protruded above the holder plate 22. Lock hole of tray plate 21
A locking piece 32 that can advance and retreat is provided upright at 27, and a substantially triangular release part 33 protruding above the holder plate 22 and positioned behind the engaging step of the tray plate 21 is formed. ing.

As shown in FIG. 8, below each holder plate 22, a front end side is rotatably supported by the holder plate 22 and a rear end side is lowered by a spring (not shown) to lower the tray 11 on the lower side. A holding plate 34 for holding the upper CD is provided. The holding plate 34 also has the notch 2 of the tray plate 21 and the holder plate 22.
Notches (not shown) similar to 3 and 24 are formed.

Next, the structure of the selection plate 12 will be described.

As shown in FIG. 4, FIG. 12 to FIG.
The selection plate 12 has a substrate 41. Side plates 42 and 43 are formed on both sides of the substrate 41 so as to rise, and a rear plate 44 is formed so as to rise behind the substrate 41. Side plate portions 42 and 43 are supported slidably in the vertical direction with respect to the side plates 3 and 4 on both sides of the body 1, and an information recording disk selecting device
It is moved up and down to the selected position selected by 14.

Next, the structure of the loading mechanism 13 will be described.

As shown in FIGS. 5 and 6, the loading mechanism 13 has a cam plate 51 fixed to a side plate portion 42 on one side of the selection plate 12, and a cam groove 52 is formed in the cam plate 51. Have been. A loading plate 53 is mounted on the cam plate 51 so as to be slidable in the front-rear direction.
A pressing portion 54 is formed at the front end of the loading plate 53 so that the release portion 33 of the holder plate 22 of the tray 11 can be pressed and the engaging step 25 of the tray plate 21 can be pushed forward.
A connecting piece 55 is formed to project from the side of.

A loading lever 56 is pivotally supported on the loading plate 53 with a lever shaft 57 as a fulcrum, and the front end of the loading lever 56 has a tray plate
An engaging roller 58 capable of engaging with the engaging groove 26 of the 21 is rotatably supported by the shaft, and penetrates the loading plate 53 at the rear end of the loading lever 56 to engage with the cam groove 52 of the cam plate 51. A cam shaft 59 is attached. A spring 60 for urging the loading lever 56 in a counterclockwise direction in the drawing, that is, a direction in which the engagement roller 58 is engaged in the engagement groove 26 of the tray 11, is tensioned between the loading lever 56 and the loading plate 53. Has been established.

The loading mechanism 13 has a support plate 61 disposed along the side plate 3 on one side of the body 1, and a slide member 62 is slidable on the lower surface of the support plate 61 in the front-rear direction. A connecting shaft 63 to which the connecting piece 55 of the loading plate 53 is movably connected in the vertical direction (axial direction) is attached to the rear end of the slide member 62.

A rack 64 is mounted on the inner surface of the support plate 61 so as to be slidable in the front-rear direction. Between the rack 64 and the slide member 62, the slide member 62 follows the forward movement of the rack 64. The spring 65 is stretched.

A loading motor is provided on the side of the support plate 61.
A forward / reverse rotational driving force of the loading motor 66 is transmitted to the rack 64 via a gear train 67 including a plurality of gears.

An eject detection switch 68 which is pushed by the rack 64 moving forward and detects an eject position is disposed in front of the moving area of the rack 64, and moves backward behind the moving area of the rack 64. A loading detection switch 69 that is pressed by the rack 64 to detect the completion of loading is provided. Further, a tray push detection switch 70 that is turned on by the slide member 62 when the rack 64 moves to the eject position is provided in front of the movement area of the slide member 62.

Next, the structure of the information recording disk selecting device 14 will be described.

As shown in FIGS. 1, 2, and 7 to 9, the information recording disk selecting device 14 uses a selecting mechanism 81 to select one tray 11 for reproducing (or loading) from among the plurality of trays 11. Select 11 and move mechanism
By 82, a drive space is formed below the selected tray 11 so that the drive arm body 15 can enter. Further, the holding mechanism 83 allows the moving mechanism
It is configured to hold the selection mechanism 81 at the selection position of the selection mechanism 81 during the operation of 82.

The information recording disk selecting device 14 includes a moving plate 84 slidably disposed on the bottom plate 2 of the body 1 in the front-rear direction, a pair of operating members 85 disposed on both sides of the moving plate 84, a pair of front and rear. An interlocking plate 86 provided on the moving plate 84, and a pair of front and rear interlocking levers 87 for interlocking the operating bodies 85 with the interlocking plate 86 are provided.

The lowermost tray is provided on both sides of the moving plate 84.
A pair of front and rear guide pieces 91 for vertically moving the tray 11 via the 11 guide rollers 28 are provided upright, and behind each guide piece 91, each operating body 85 is supported so as to be vertically movable. The support pieces 92 are provided upright, and a bearing piece 93 for rotatably supporting the interlocking lever 87 is provided upright behind each support piece 92.

Each guide piece 91 has a guide plate 28 at the standby position where the moving plate 84 shown in FIG.
An upper horizontal edge 94 is formed to raise the tray 11 via the guide plate 28. When the moving plate 84 shown in FIG. 8 moves forward from the standby position, the tray 11 is guided downward via the guide roller 28 (moving plate 84). The guide plate 28 guides the tray 11 upward through the guide roller 28 when moving backward from the forward position. The inclined edge portion 95 is formed, and the moving plate 84 shown in FIG. 9 guides at the most advanced playback position (drive position). A lower horizontal edge 96 supporting the tray 11 via the rollers 28 is formed.

Each support piece 92 has a groove along the vertical direction.
97 are formed.

Each operating body 85 is disposed inside each support piece 92 of the moving plate 84, and a pair of upper and lower shafts 101 is engaged with the groove 97 of the support piece 92 so as to be movable in the vertical direction. It is supported by.

At the front of the operating body 85, the guide roller 28 of one tray 11 selected by moving forward from the standby position where the moving plate 84 shown in FIG.
A guide groove 102 that allows only the engagement is formed.
In the guide groove 102, a first groove portion 103 for lowering the selected tray 11 via the guide roller 28 at a position where the moving plate 84 shown in FIG. 8 has moved forward is formed, and as shown in FIG. A second groove portion 104 is formed to further lower the selected tray 11 via the guide roller 28 at the reproduction position where the moving plate 84 has advanced most.

On the front edge of the operating body 85, a guide edge portion which forms a groove portion 105 in parallel with the inclined edge portion 95 of the guide piece portion 91 is formed.
106 are formed.

At the rear of the rear working body 85, a selection plate is provided.
A connection pin 107 connected to 12 protrudes.

Also, on both sides of the interlocking plate 86,
A pair of front and rear bearing pieces 112, each of which protrudes, is provided upright.

Each of the interlocking levers 87 is formed substantially in an L-shape, and an intermediate portion thereof is attached to the bearing piece 93 of the moving plate 84 by the support shaft 11.
5, a long groove 116 connected to the lower shaft 101 of the operating body 85 is formed at one end, and a long groove 117 connected to the support shaft 111 of the interlocking plate 86 is formed at the other end. ing.

Then, the selection plate 12 and the rear operating body 85 are selected.
Are vertically moved integrally via the connecting pin 107, and the front and rear operating bodies 85 are integrally moved vertically via the interlocking plate 86 and the interlocking lever 87. That is, the selection mechanism 81 moves the selection plate 12 and the front and rear operating bodies 85 integrally in the vertical direction, and moves the selected plate 11 to the selected position for playing the CD.

Further, the moving plate 82
84 and the front and rear operating body 85 are integrally moved in the front and rear direction, and the tray 11 is selected by moving the tray 11 when moving forward.
A drive space is formed below 11.

Next, the structure of the selection mechanism 81 will be described.

As shown in FIGS. 1 and 2, the selection mechanism 81
Has a selection plate 121 slidably mounted on the rear of the bottom plate 2 of the fuselage 1 in the left-right direction. The selection plate 121 has a rear edge disposed behind the rear plate 44 of the selection plate 12. A rising piece 122 is formed, and a cam groove 124 is formed diagonally in the rising piece 122 so that a pin 123 projecting from the rear plate 44 of the selection plate 12 is engaged.

A guide groove 125 which is long in the front-rear direction is formed at the front of the selection plate 121, and the holding lever 12 is formed in the guide groove 125.
6 is engaged with the holding pin 127 at one end. Holding lever
126 is formed in a substantially L-shape, and the middle portion is the movable plate 8
4 is rotatably supported by a support shaft 128, and a long groove 129 formed at the other end has a pin 13 erected on an interlocking plate 86.
Connected to 0.

When the selection plate 121 slides leftward in the drawing, the selection plate 12 is moved through the cam groove 124.
Is raised, the holding lever 126 is rotated clockwise in the drawing, the interlocking plate 86 is advanced, and the respective operating bodies 85 are raised via the respective interlocking levers 87, that is, the selection plate 12 and the operating body 85 Is raised integrally. on the other hand,
When the selection plate 121 slides rightward in the drawing, the selection plate 12 is lowered via the cam groove 124, the holding lever 126 is rotated counterclockwise in the drawing, and the interlocking plate 86 is retracted. Each operating body 85 is lowered via each interlocking lever 87, that is, the selection plate 12 and the operating body 85 are integrally lowered.

At the rear of the selection plate 121, there is provided a passive piece 132 having an engagement groove 131 formed along the vertical direction, and the passive piece 132 is provided on the side of the machine body 1 for driving. means
Linked to 133.

The driving means 133 is provided on a support frame 134 attached to the body 1 and has a drive lever 136 rotatably supported by a support shaft 135 on the support frame 134. Pin 137 is engaged with the engagement groove 131 of the passive piece 132
Is engaged. A gear is attached to the support shaft 135 of the drive lever 136.
A selection motor 139 is attached to the support frame 134. The forward / reverse rotation driving force of the selection motor 139 is transmitted through a gear train 140 composed of a plurality of gears.
138. Then, the drive lever 136 is swung by the driving of the selection motor 139, and the selection plate 121 is moved in the left-right direction.

It should be noted that a selection position detecting means (not shown) for detecting the rotation amount of the gear 138 is provided, and the moving position of the selection plate 121, that is, the selection position is detected by the selection position detecting means.

Next, the structure of the moving mechanism 82 will be described.

As shown in FIGS. 1 and 2, the moving mechanism 82
Has a cam disk 152 rotatably supported on a support shaft 151 as a fulcrum on the bottom plate 2 of the body 1. The cam disk 152 has a cam groove 153 formed therein and a peripheral edge thereof. A gear 154 is attached to a part of the.

A support shaft 155 is provided on the bottom plate 2 on the front side of the cam disk 152.
One end of the cam lever 156 is rotatably supported on a pivot point, and the other end of the cam lever 156 is
157, and the middle part is the cam groove 1 of the cam disk 152.
It is connected to a cam disk 152 via a cam pin 158 engaged with 53.

When the cam disk 152 is at the standby position shown in FIG. 1, the movable plate 84 is at the standby position (the position shown in FIG. 7) in which the moving plate 84 has moved backward.
2 is rotated clockwise in FIG. 1 to move the moving plate 84 through the cam groove 153 and the cam lever 156.
Has been moved forward and the playback position shown in FIG. 2 (the position in FIG. 9)
It is said. On the other hand, when the cam disk 152 is rotated counterclockwise in FIG. 2 from the reproduction position shown in FIG. 2, the moving plate 84 is moved through the cam groove 153 and the cam lever 156.
Is moved backward and returned to the standby position shown in FIG.

The cam disk 152 is rotated by driving means 159 provided on the side of the body 1. The driving means 159 is provided with a moving motor 160 attached to the airframe 1.
Zero forward / reverse rotational driving force is transmitted to the gears via a gear train 161 composed of a plurality of gears.

It is to be noted that moving position detecting means (not shown) for detecting the amount of rotation of one gear in the gear train 161 is provided, and the moving amount detecting means detects the amount of rotation of the cam disk 152, that is, the moving position of the moving plate 84. Is detected.

The moving mechanism 82 has a function of a tray moving mechanism for moving the tray 11 described above, and also has a function of a drive arm moving mechanism for moving a drive arm body 15 described later.

Next, the structure of the holding means 83 will be described.

As shown in FIGS. 1 and 2, the holding means 83
Has a holding pin 127 and
127 has a comb-like holding groove 171 to be engaged.

The holding groove 171 is provided in the guide groove 125 of the selection plate 121.
Is formed on the bottom plate 2 corresponding to the sliding area of the selection plate 121 below the selection plate 121. In the standby position shown in FIG.
A selection groove portion 172 is formed to allow the holding pin 127 to move to each of the selected positions in accordance with the slide to each of the selected positions of item 1, and the selection groove portion 172 communicates forward from a position corresponding to each of the selected positions. Thus, a plurality of holding grooves 173 are formed for each selected position to allow the holding pin 127 to advance and retreat, and to hold the advancing state. The width of the inlet communicating with the selection groove 172 of each holding groove 173 is formed wide to facilitate the entry of the holding pin 127, and the width on the back side is narrow to hold the holding pin 127. Is formed.

In the standby position shown in FIG. 1, the holding pin 127 is moved in the selecting groove 172 and faces the corresponding holding groove 173 with the movement of the selecting plate 121 to any one of the selecting positions. It is located at the selected position. By moving the moving plate 84 forward from this state toward the reproduction position in FIG. 2, the holding pin 127 moves forward along the guide groove 125 and enters the holding groove 173,
The selection plate 121 is held at the selected position.

Next, the structure of the drive arm body 15 will be described.

As shown in FIGS. 4, 11 and 12,
The drive arm body 15 is provided on the selection plate 12 and has a swing arm 181 that moves forward and backward with respect to the tray 11. The swing arm 181 is erected on the bottom plate 2 at the side position of the tray 11 and is swingably supported on an arm shaft 182 penetrated on the selection plate 12 as a fulcrum. A cam groove 183 is formed on the near base end side.

A switching plate 184 is mounted on the selection plate 12 so as to be slidable in the front-rear direction, and a cam pin 185 engaging with the cam groove 183 is provided on the switching plate 184.

Then, at the standby position where the switching plate 184 shown in FIG. 10 is retracted, the swing arm 181 is located at the standby position where it is retracted rearward from the inside of the tray 11 via the cam groove 183 and the cam pin 185. When the switching plate 184 is moved forward from this standby position, the cam groove 183 is moved.
The swing arm 181 enters the front tray 11 and swings via the cam pin 185 and is positioned at the reproduction position (drive position) shown in FIG.

The translation of the switching plate 184 in the front-back direction is performed by the function of the drive arm moving mechanism of the moving mechanism 82. In the function of the drive arm moving mechanism, the intermediate portion has first and second links 192 and 193 rotatably connected to each other by a connecting pin 191. The front ends of the first and second links 192 and 193 are provided. Is pin 194,19
5 to the switching plate 184 via the first link
The rear end of 192 is supported on the selection plate 12 by a support shaft 196,
The rear end of the second link 193 is connected to a working plate via a cam pin 197.
198.

One end of the third link 199 is rotatably supported on the selection plate 12 with the support shaft 200 as a fulcrum, and the other end of the third link 199 is connected via a pin 201 to the first link.
192, and the middle part is actuated
It is linked to 98. The third link 199 has a cam groove 203
The cam groove 203 is formed in the cam groove 203.
04 is engaged.

The operation plate 198 is attached to the selection plate 12 so as to be slidable in the left-right direction, and has a cam groove 205 in which the cam pin 197 of the second link 193 and the cam pin 202 of the third link 199 are engaged. I have.

Then, at the standby position where the operation plate 198 shown in FIG.
4 is in the retracted standby position. When the operation plate 198 is slid rightward in the drawing from the standby position,
The switching plate 184 is translated forward via the first to third links 192, 193, 199.

Further, in the function of the drive arm moving mechanism of the moving mechanism 82, as shown in FIGS. 1 and 2, the intermediate portion is rotated on the bottom plate 2 on the side of the cam disk 152 with the support shaft 211 as a fulcrum. The cam lever 212 has a freely rotatably supported cam lever 212, and one end of the cam lever 212 is connected to the cam disk 152 via a cam pin 213 engaged with the cam groove 153 of the cam disk 152,
The other end is connected to a slide plate 215 via a pin 214. The slide plate 215 is slidably attached to the rear portion on the bottom plate 2 in the left-right direction, and has a rising piece portion 216 formed on the rear side of the rear plate portion 44 of the selection plate 12 from the rear edge.
A guide groove 217 is formed in the rising piece 216 along the vertical direction.

As shown in FIGS. 10 and 11, a pin 218 projecting from an operation plate 198 is engaged with the guide groove 217 of the slide plate 215. Pin 218 is the selection plate
Guide grooves 21 formed in the rear plate portion 12 of the 12 along the left-right direction
9 is arranged through.

When the cam disk 152 is at the standby position shown in FIG. 1, the slide plate 215 is at the standby position in which it slides to the left in FIG.
Is rotated clockwise in FIG.
The slide plate 215 is slid rightward in FIG. 1 via the 153 and the cam lever 212 to the reproduction position shown in FIG.

As shown in FIGS. 4, 12, and 15, a drive arm 221 is provided on the swing arm 181. The holding frame 222 is attached to the end of the drive arm 221.
A turntable 223 for chucking a CD is disposed above the holding frame 222, and a CD rotation motor 224 as a driving unit is mounted below the holding frame 222, and projects above the holding frame 222. CD rotation motor 224
A turntable 223 is fixed to the drive shaft 225.

As shown in FIG. 4, a head section 227 having a pickup 226 for reading and reproducing a CD is provided on the drive arm 221. Head 227
Is slidably supported along the drive arm 221 and is screwed to a feed screw 228 disposed along the drive arm 221. The head 227 is moved along the drive arm 221 by the rotation of the feed screw 228 by the head feed motor 229.

As shown in FIG. 12, a support arm 230 is disposed on the selection plate 12 along the rear plate portion 44, and a connecting pin 231 projecting from one end of the support arm 230 from the drive arm 221 swings. A connection groove 232 that is movably connected is formed. Therefore, the drive arm 221 and the support arm 230 are connected so as to move integrally in a vertical direction or the like.

At both ends of the support arm 230, support receiving portions 233,
234 are formed, and the holding frame on the tip side of the drive arm 221 is formed.
The 222 has a support receiving portion 235 formed therein. Support arm 23
The anti-vibration support means 236a and 236b are disposed between the support receiving parts 233 and 234 of No. 0 and the selection plate 12, and the anti-vibration support means 236c is disposed between the support receiving part 235 and the swing arm 181. Have been. That is, when the drive arm 221 is swung to the drive position, three points on the distal end side of the drive arm 221, the connection side between the drive arm 221 and the support arm 230, and the distal end side of the support arm 230 respectively correspond to the substantially triangular apex positions.
At this point, anti-vibration support means 236a, 236b, 236c are provided, respectively, and the drive arm 221 and the support arm 230 are supported in an anti-vibration state with respect to the selection plate 12 and the swing arm 181.

As shown in FIGS. 13 to 15, each of the vibration isolating support means 236a, 236b, 236c has a substantially common configuration and has a case 237 attached to the selection plate 12 or the swing arm 181. A damper 238 such as an oil damper filled with oil is accommodated in an elastic container made of rubber or the like, and a connecting shaft 239 projects from an upper surface of the damper 238.
3, 234, 235. A coil-shaped spring 240 for floating the support receiving portions 233, 234, 235 is provided on the outer periphery of the case 237. In addition, each anti-vibration support means
Dampers 238 and springs 240 for 236a, 236b, 236c
Is appropriately set according to the load received at each location.

Next, the structure of the regulating means 251 will be described.

The regulating means 251 is provided with each of the anti-vibration supporting means 236a and 236a while the CD is chucked by the turntable 223.
Drive arm 221 and support arm by 236b, 236c
The drive arm 221 and the support arm 230 are restricted by supporting the drive arm 221 and the support arm 230 by the anti-vibration support means 236a, 236b, and 236c in a state other than the chucking state. It has a function to set a regulated state to hold it at a fixed position.

As shown in FIGS. 12 and 13, the regulating means 251 corresponds to the anti-vibration support means 236a.
A regulating lever 254 and a passive lever 255 rotatably supported by support shafts 252 and 253 on the 12 side plate portions 42, respectively.
The restricting lever 254 and the passive lever 255 are connected to the connecting pin 25.
6 are connected so as to be able to rotate in conjunction with each other.
At the rear end of the regulating lever 254, the support receiving portion 23 of the support arm 230 is provided.
An engaging portion 257 that can be engaged is formed on the upper surface, and a passive roller 258 is rotatably supported by the passive lever 255.

A spring 259 is mounted on the regulating lever 254, and the spring 259 causes the regulating lever 254 to move clockwise in FIG.
3 is urged downward. The elastic force of the spring 259 is set to be stronger than the elastic force of the spring 240 so that the support receiving portion 233 of the support arm 230 can be pressed downward against the bias of the spring 240.

As shown in FIGS. 12 and 14, the regulating means 251 corresponds to the anti-vibration support means 236b,
A restriction lever 262 and a passive lever 263 rotatably supported by support shafts 260 and 261 respectively on the 12 side plate portions 43,
The restricting lever 262 and the passive lever 263 are connected to the connecting pin 26.
They are rotatably connected to each other by 4.
At the rear end of the regulating lever 262, the support receiving portion 23 of the support arm 230 is provided.
An engaging portion 265 that can be engaged is formed on the upper surface, and a passive roller 266 is rotatably supported by the passive lever 263.

A spring 267 is mounted on the regulating lever 262, and the spring 267 causes the regulating lever 262 to move in the counterclockwise direction in FIG.
234 is urged downward. The elastic force of the spring 267 is set to be stronger than the elastic force of the spring 240 so that the support receiving portion 234 of the support arm 230 can be pressed downward against the bias of the spring 240.

As shown in FIGS. 12 to 14, cam projections 268, 269 which can be engaged with the passive rollers 258, 266 are formed on both side edges of the switching plate 184.

Then, as described above, the switching plate 18
The cam projections 268 and 269 are disposed at positions separated from the rear of the passive rollers 258 and 266 at the standby position in which the support arm 230 is retracted, and the support arms 230 are supported by the springs 259 and 267 via the regulating levers 254 and 262. The receiving portions 233 and 234 are pressed downward, and the support of both ends of the support arm 230 by the respective vibration isolating support means 236a and 236b is regulated, and the support arm 230 is held at a fixed position. On the other hand, when the switching plate 184 is advanced to the reproduction position, the passive rollers 258 are placed on the cam projections 268, 269.
266, and the passive levers 255, 263 and the restriction levers 254, 262 are rotated to the two-dot chain line positions against the biasing of the springs 259, 267, respectively.
The second engaging portions 257 and 265 are lifted to release the pressing of the support arm 230 below the support receiving portions 233 and 234, and the support of both ends of the support arm 230 by the respective vibration isolating support means 236a and 236b is allowed. .

As shown in FIGS. 12 and 15,
The restricting means 251 is supported by a support piece 270 raised from the edge of the swing arm 181 corresponding to the vibration-proof support means 236c.
The drive arm 221 has a regulating lever 272 rotatably supported by a shaft. The drive arm 221 is provided with a regulating shaft 273 protruding from the edge of the drive arm 221 so that the regulating lever 272 can engage with the regulating lever 272.

The swing arm 18 is located below the drive arm 221.
A passive plate 274 is slidably mounted on the swinging arm 181 along the longitudinal direction of the swinging arm 181, and a passive piece 275 disposed inside the support piece 270 is formed on the passive plate 274 so as to rise. A cam pin 276 projecting from a regulating lever 272 is connected to the passive piece 275. The support piece 270 is formed with an arc-shaped long hole 277 through which a cam pin 276 penetrates and is movable in accordance with the rotation of the regulating lever 272. The passive piece 275 has a cam groove 27 with which the cam pin 276 engages.
8 is formed. As shown in FIGS. 10 and 11, the passive plate 274 is formed with an engagement groove 279 that can engage with the cam pin 185 that moves in the cam groove 183 of the swing arm 181. The passive plate 274 is urged by a spring (not shown) so as to slide toward the arm shaft 182 at the base end of the swing arm 181.

Then, as described above, at the standby position where the switching plate 184 shown in FIG. 10 is retracted, the passive plate 274 is urged to slide toward the arm shaft 182 at the base end of the swing arm 181, and the solid line in FIG. As shown in FIG. 15, through the engagement between the cam groove 278 of the passive plate 274 and the cam pin 276 of the regulating lever 272, the regulating lever 272 is rotated clockwise in FIG.
The restricting lever 272 pushes the distal end side of the drive arm 221 downward through the restricting shaft 273, and the support of the distal end of the drive arm 221 by the anti-vibration support means 236c is restricted and held at a fixed position. On the other hand, when the switching plate 184 is advanced to the reproduction position shown in FIG. 12, the passive plate 274 is pushed by the cam pins 185 toward the tip end of the swing arm 181.
As shown by the two-dot chain line in FIG.
The control lever 272 is rotated counterclockwise in FIG. 15 through the engagement of the control lever 272 with the cam pin 276, and the pressing of the drive arm 221 downward by the control lever 272 is released. Support of the tip of the drive arm 221 by 236c is allowed.

Next, the structure of the turntable 223 will be described.

As shown in FIGS. 15 to 17, the turntable 223 has a disk-shaped mounting portion 281 for mounting a CD, and is attached to the center of the mounting portion 281 so that the center of the CD is mounted. It has a boss 282 with which the hole engages, and a bearing member 283 fixed to the drive shaft 225 is attached to the center of the boss 282. The boss portion 282 is formed with an annular concave portion 284 that opens upward.
4 and the outer peripheral surface of the boss 282 to open
285 are formed at equal intervals at three locations on the circumference.

The turntable 223 has a chuck mechanism 291 for chucking a CD. The chuck mechanism 291 has three balls 292 stored in each ball storage portion 285 of the boss portion 282, and a concave portion 284 of the boss portion 282 has an annular shape for holding each ball 292 in each ball storage portion 285. The holding member 293 is accommodated so as to be movable in the vertical direction, and a spring for urging the holding member 293 downward is provided.
294 are accommodated, and the closing member 29 is provided on the upper surface of the boss portion 282.
5 is installed.

Three legs 296 are formed on the lower surface of the holding member 293 and project through the lower surface of the boss 282, and each ball 29
A pressing portion 297 that allows the ball 292 to be pressed outward is formed on the peripheral surface opposite to the second surface.

When the holding member 293 is lowered, the pressing portion
The ball 292 is pressed outward by the 297 and protrudes from the peripheral surface of the boss portion 282. On the other hand, when the holding member 293 is raised, the pressing by the pressing portion 297 is released and the ball 292 is moved into the boss portion 282.
292 retreat is allowed.

A chuck lever 298 is provided between the turntable 223 and the holding frame 222. The chuck lever 298 is rotatable and vertically movable when a plurality of long holes 299 formed along the circumferential direction of the chuck lever 298 engage a guide shaft 300 projecting from the upper surface of the holding frame 222. It is configured to be possible. Further, a plurality of engagement holes 301 are formed in the chuck lever 298, and a mountain-shaped push-up portion 302 which can be engaged with each of the engagement holes 301 is formed on the upper surface of the holding frame 222 so as to protrude.

The chuck lever 298 has a connecting piece 303 formed on the outer surface of the passive piece 275 of the passive plate 274 so as to face the connecting piece 303. A connecting pin protruding from the passive piece 275 is formed on the connecting piece 303. A connection hole 305 is formed to be engaged with 304.

Then, as described above, in the state of FIG. 15 in which the passive plate 274 slides toward the arm shaft 182 at the base end of the swing arm 181, the connection pin 304 of the passive plate 274 is used.
The chuck lever 298 is rotated clockwise in FIG. 16 as indicated by a two-dot chain line in FIG.
8 is disengaged from the position of the push-up portion 302, the chuck lever 298 is lifted up on the push-up portion 302 and lifted, and the leg portion 296 of the holding member 293 is pushed up by the chuck lever 298, and the boss portion 282 The ball 292 is allowed to retreat inside, and the center hole of the CD is allowed to engage the boss 282. On the other hand, when the passive plate 274 is slid to the tip side of the swing arm 181, the chuck lever 298 is moved from the position shown by the two-dot chain line in FIG. The chuck lever 298 is lowered by the engagement holes 301 of the chuck lever 298 corresponding to the position of the push-up portion 302, and the pushing-up of the holding member 293 by the chuck lever 298 is released, and the spring 294 is urged. As a result, the ball 292 moves through the boss 282
These three balls 292 are engaged with the edge of the center hole of the CD and chucked.

Next, the operation of the CD changer of this embodiment will be described.

First, loading of a CD will be described.

At the standby position of the loading mechanism 13 in which the loading plate 53 is retracted as shown in FIG. 5, the selection plate 12 is moved to the selection position (the movement of the selection plate 12 to the selection position will be described later). Loading plate 53
The loading lever 56 and the like are moved to a selected position corresponding to the tray 11 on which loading is performed.

When the eject button of the operation unit (not shown) is operated, as shown in FIG.
The loading plate 53 is moved forward by the drive of 66, the release portion 33 of the leaf spring 31 of the tray 11 selected by the pushing portion 54 of the loading plate 53 is pressed down, and the locking piece 32 is integrated with the release portion 33. Is dropped downward from the locking hole 27 of the tray plate 21, and the pushing portion 54 is further engaged with the engaging step portion of the tray plate 21.
The tray plate 21 is pushed forward with respect to the holder plate 22 by engaging with 25. When the tray plate 21 is pushed out of the slot 6 to the eject position shown by the solid line in FIG. 6, the loading motor 66 is stopped.

When the tray plate 21 is pushed out to the eject position, the engaging roller 58 of the loading lever 56 is engaged with the engaging groove 26 of the tray plate 21, and the tray pressing detection switch 70 is turned on by the slide member 62. Have been.

The tray plate 21 pushed out to the eject position
Is further pulled out of the holder plate 22 to the position indicated by the two-dot chain line in FIG. 6, whereby the CD can be mounted on the tray plate 21. When the tray plate 21 is pulled out forward, the engaging roller 58 of the loading lever 56 is
From the engaging groove 26.

After the CD is loaded on the tray plate 21, the tray plate 21 is pushed to the eject position shown by the solid line in FIG. 6 and further pushed from the eject position. 62 is pushed backward, the tray push detection switch 70 is turned off, and the loading motor 66 is driven in reverse. Alternatively, when the eject button of the operation unit (not shown) is operated again after the tray plate 21 on which the CD is loaded is pushed to the eject position, the loading motor 66 is driven to rotate in the reverse direction.

The loading plate 53 is moved rearward by the reverse rotation of the loading motor 66, the tray plate 21 is pulled backward through the loading lever 56, and the pressing portion 54 of the loading plate 53 releases the release portion of the leaf spring 31. 33 is pushed down and the locking piece is integrated with the release
32 is lowered, and the rear portion of the tray plate 21 contacts the stopper 30 of the holder plate 22. Thereafter, the rearward movement of the loading plate 53 is continued, and the engaging roller 58 of the loading lever 56 is moved.
Is disengaged from the engaging groove 26 of the tray plate 21, the pressing of the release portion 33 by the pressing portion 54 is released, and the locking piece 32 is
Is engaged with the locking hole 27. When the loading plate 53 returns to the loading completed position shown in FIG. 5, that is, the standby position, the loading motor 66 is stopped.

When a CD is taken out, the same operation as when a CD is loaded is performed.

Next, reproduction of a CD will be described.

In the description of the reproduction of the CD, the selection operation of the selection mechanism 81 and the movement operation of the cam disk 152 by the moving mechanism 82 at the initial rotation stage, the middle rotation stage, and the late rotation stage are separately described. explain.

First, the selection operation of the selection mechanism 81 will be described.

When a tray 11 on which a CD to be reproduced is mounted is selected by an operation unit (not shown), a selection mechanism 81 is operated as shown in FIGS.
The drive of 9 moves the selection plate 121 to the selected position.

When the selection plate 121 is moved to the selected position, the selection plate 12 is moved up or down via the cam groove 124 of the selection plate 121 and moved to the selected position.
The loading mechanism 13 and the drive arm body 15 on 12 are moved to a selected position corresponding to the selected tray 11.

Further, when the selection plate 121 is moved to the selected position, the interlocking plate 86 is moved forward or backward through the holding lever 126, and as shown in FIG. Each operating body 85 is raised or lowered to move to the selected position.

Further, as shown in FIGS. 1 and 2, when the selection plate 121 is moved to the selected position, the holding pin 127 of the holding lever 126 is moved in the selection groove 172 of the holding groove 171 to form one holding member. Is moved to the selected position facing the groove 173.

Accordingly, the selection mechanism 81 moves the selection plate 12, the loading mechanism 13 on the selection plate 12, the drive arm body 15, the operating bodies 85, and the like integrally in the vertical direction, and selects one of the selected trays. The player moves to the selected position for playing the 11 CDs.

FIGS. 1, 2 and 7 show the selection position when the second tray 11 from the bottom is selected, and the entrance of the guide groove 102 of each operating body 85 is the second tray from the bottom. Is located at the height of the guide roller 28 of the tray 11 and has a holding pin
127 is located at the entrance of the second holding groove 173 from the end of the holding groove 171.

Next, a description will be given of the reproducing movement operation at the initial stage of the rotation of the cam disk 152 by the moving mechanism 82.

As shown in FIG. 1 and FIG.
After the above operation, the operation of the moving mechanism 82 is started, and the cam disk 152 at the standby position shown in FIG. 1 is rotated clockwise in FIG.

The rotation of the cam disk 152 from the standby position causes the moving plate 84 to move forward through the cam groove 153 and the cam lever 156.

As the moving plate 84 moves forward, the holding pin 127 of the holding lever 126 is moved to the holding groove portion of the holding groove 171.
173, and the selection mechanism 81 is held at the selected position.

Further, by moving the moving plate 84 forward, the moving plate 84 and each operating body 85 are integrally moved forward from the standby position shown in FIG. 7, and as shown in FIG. 11 guide roller 28 relatively enters the groove 105 and is guided downward, and the lowermost tray 11
Is lowered to form a drive space below the second tray 11 from the bottom. The guide roller 28 of the tray 11 at the second stage from the bottom relatively enters into the guide groove 102 of the operating body 85 and is slightly lowered through the first groove 103,
The second tray 11 from the bottom is slightly lowered. The guide roller 28 of the third tray 11 from the bottom is placed on the operating body 85,
The lowering of the third or higher tray 11 from below is restricted.

Next, the reproducing movement operation of the cam disc 152 in the middle stage of the rotation by the movement mechanism 82 will be described.

When the cam disk 152 is at the standby position shown in FIG. 1, the slide plate 215 is at the standby position where it slides to the left as shown in FIG.
Is rotated clockwise in FIG.
The slide plate 215 is slid rightward via the 153 and the cam lever 212 as shown in FIG.

When the operating plate 198 is in the standby position where it is slid to the left as shown in FIG. 10 integrally with the slide plate 215, the switching plate 184 is in the retracted standby position. Working plate 198 integrated with
Is slid rightward, as shown in FIG. 11, the switching plate 184 is translated forward through the first to third links 192, 193, 199.

When the switching plate 184 is in the retracted standby position shown in FIG. 10, the swing arm 181 of the drive arm body 15 is moved to the tray via the cam groove 183 and the cam pin 185.
The switching plate 184 is moved forward from the standby position, and the swing arm 181 is moved through the cam groove 183 and the cam pin 185 from the standby position. And is moved to the drive position shown in FIG.

Next, the reproducing movement operation of the cam disc 152 at the latter stage of the rotation of the cam disk 152 by the movement mechanism 82 will be described.

As shown in FIG. 9, the second tray from the bottom
The 11 guide rollers 28 are lowered from the first groove 103 of the operating body 85 into the second groove 104, and the tray 11 at the second stage from the bottom is further lowered. The CD mounted on the second tray 11 from the bottom is transferred to the turntable 223 of the drive arm 15 located at the drive position.
The tray 11 at the tier is further lowered and moved to a position separated downward from the CD.

At this point, the passive plate on the swing arm 181
Reference numeral 274 denotes an arm shaft 182 at the base end of the swing arm 181 shown in FIG.
In the standby position, the chuck lever 298 is rotated clockwise through the connecting pin 304 of the passive plate 274 as shown by a two-dot chain line in FIG.
Each engaging hole 301 of the chuck lever 298 is disengaged from the position of the push-up portion 302, and the chuck lever 298 is lifted up on the push-up portion 302 and rises, and the leg portion 296 of the holding member 293 is pushed up by the chuck lever 298, and the boss Ball 292 in part 282
Retreat is allowed.

Therefore, the CD on the tray 11 in the second row from the bottom is
When the CD is transferred to the turntable 223 of the drive arm body 15 located at the drive position, the center hole of the CD
The lower surface of the CD is placed on the mounting portion 281 of the turntable 223.

When the switching plate 184 is advanced to the reproduction position shown in FIG. 12, the passive plate 274 is slid via the cam pins 185 to the tip side of the swing arm 181 and the passive plate 27 is moved.
1 through the connecting pin 304 of FIG.
6 is rotated from the position indicated by the two-dot chain line to the position indicated by the solid line, the engagement holes 301 of the chuck lever 298 coincide with the position of the push-up portion 302, and the chuck lever 298 is lowered. The lifting of the member 293 is released, and each ball 292 is projected from the peripheral surface of the boss portion 282 via the holding member 293 by the bias of the spring 294, and these three balls 292 are engaged with the upper edge of the center hole of the CD. Together, it is chucked to the turntable 223.

Until the CD is chucked to the turntable 223, the cam projections 268 and 269 of the switching plate 184 are separated from the passive rollers 258 and 266 as shown by the solid lines in FIGS. And the regulating levers 254 and 262 are urged by the springs 259 and 267.
The support receiving portions 233 and 234 of the support arm 230 are pressed downward via the support arm 230, and the support of both ends of the support arm 230 by the anti-vibration support means 236a and 236b is regulated, and the support arm 230 is held at a fixed position. .

From this state, the switching plate 184 is moved to the position shown in FIG.
When they are advanced to the regenerating position shown in FIG. 7A, they engage with the passive rollers 258 and 266 on the cam projections 268 and 269, and the springs 259 and 26
7, the passive levers 255 and 263 and the control levers 254 and 262 are rotated to the two-dot chain lines, respectively, and the engagement portions 257 and 265 of the control levers 254 and 262 are raised to move the support arm 230 The downward pressing of the support receiving portions 233 and 234 is released, and the support arms 236a and 236b release the support arms.
Both ends of 230 are supported in an anti-vibration state.

Similarly, the CD is stored on the turntable 223.
10 and 15, at the standby position where the switching plate 184 is retracted, the passive plate 274 is slid toward the arm shaft 182 at the base end of the swing arm 181 until the chucking position is reached. As shown by a solid line in FIG. 15, through the engagement between the cam groove 278 of the passive plate 274 and the cam pin 276 of the regulating lever 272, the regulating lever 272 is rotated clockwise in FIG. As a result, the distal end side of the drive arm 221 is pressed downward via the regulating shaft 273, and the support of the distal end of the drive arm 221 by the anti-vibration support means 236c is regulated and held at a fixed position.

From this state, the switching plate 184 is moved to the position shown in FIG.
When it is advanced to the playback position shown in
274 is pushed toward the tip side of the swing arm 181, and FIG.
As shown by the dashed line, through the engagement between the cam groove 278 of the passive plate 274 and the cam pin 276 of the regulating lever 272, the regulating lever 272 is rotated counterclockwise in FIG. The pressing of the drive arm 221 downward is released, and the drive arm
The tip of 221 is supported in an anti-vibration state.

When the CD is chucked to the turntable 223 and supported in a vibration-proof state, the CD can be reproduced. The CD is rotated by driving the CD rotation motor 224, and the pickup of the head 227 is picked up. 226
To read and reproduce the CD.

Next, from the CD reproducible state, the apparatus is returned to the standby state for reproducing the CD on another tray 11 or ejecting or loading the CD.

The return from the reproducible state to the standby state is performed in the same manner as the above-described operation for shifting from the standby state to the reproducible state, and the movement of the cam disk 152 by the moving mechanism 82. The moving operation in the initial stage of reverse rotation, the middle stage of reverse rotation, and the late stage of reverse rotation will be described separately.

First, the standby return operation at the initial stage of reverse rotation of the cam disk 152 by the moving mechanism 82 will be described.

The cam disk 152 at the reproduction position shown in FIG. 2 is rotated counterclockwise in FIG.

When the cam disk 152 is rotated in the reverse direction, the slide plate 215 and the operating plate 198 shown in FIG. 11 are moved to the left, and the switching plate is switched via the first to third links 192, 193, 199. 184 is translated backward.

When the switching plate 184 moves backward,
The passive plate 274 shown in FIG. 12 is moved toward the arm shaft 182 at the base end of the swing arm 181, and as shown by the solid line in FIG. 15, the cam groove 278 of the passive plate 274 and the cam pin 276 of the regulating lever 272.
15, the regulating lever 272 is rotated clockwise in FIG. 15, and the distal end side of the drive arm 221 is pressed downward by the regulating lever 272 via the regulating shaft 273, and the vibration isolating support means 236 c The support of the distal end of the drive arm 221 is regulated and held at a fixed position.

Similarly, by moving the switching plate 184 backward, the cam projections 268, 269 of the switching plate 184 are moved backward from the passive rollers 258, 266 as shown in FIGS. The support receiving portions 233 and 234 of the support arm 230 are pressed downward via the regulating levers 254 and 262 by the urging of the 267, and
The support of both ends of the support arm 230 by 6a and 236b is regulated, and the support arm 230 is held at a fixed position.

When the passive plate 274 shown in FIG. 12 is moved toward the arm shaft 182 at the base end of the swing arm 181 by the backward movement of the switching plate 184, the connection pin 304 of the passive plate 274 is connected. Then, the chuck lever 298 is rotated clockwise as shown by a two-dot chain line in FIG. 16, each engaging hole 301 of the chuck lever 298 is displaced from the position of the push-up portion 302, and the chuck lever 298 is moved up on the push-up portion 302. The chuck lever 298 lifts the leg 296 of the holding member 293.
Is pushed up, and the retreat of the ball 292 into the boss portion 282 is allowed. Thereby, the chuck of the CD is released.

Further, each operating body 85 is moved rearward integrally with the switching plate 184, and the guide roller 28 of the second tray 11 from the bottom shown in FIG. The first tray 103 is moved up into the first groove 103 and the second tray 11 is moved up. When the second tray 11 from the bottom rises, the CD placed on the turntable 223 is received on the tray 11.

Next, the standby return operation in the middle stage of reverse rotation of the cam disk 152 by the moving mechanism 82 will be described.

By moving the switching plate 184 backward,
As shown in FIG. 10, the swing arm 181 of the drive arm body 15 is moved to the tray via the cam groove 183 and the cam pin 185.
It is evacuated backward from inside 11 and moved to the standby position.

Next, the standby return operation of the cam disc 152 by the moving mechanism 82 at the latter stage of the reverse rotation will be described.

By rotating the cam disk 152 in the counterclockwise direction in FIG. 2, the cam groove 153 and the cam lever 156 are rotated.
, The moving plate 84 is moved rearward and returned to the standby position shown in FIG.

As the moving plate 84 moves backward, the guide roller 28 of the lowermost tray 11 shown in FIG. 8 is raised via the guide piece 91 of the moving plate 84, and returns to the standby state.

As described above, the tray 11 is moved by the moving mechanism 82.
Is provided with the holding means 83 for holding the selection mechanism 81 at the selection position of the selection mechanism 81 when the tray 11 is moved, so that the selection position does not shift due to vibration or the like, and it is possible to prevent poor selection and misalignment of the tray 11 .

Further, the operating members 85 arranged on both sides of the plurality of trays 11 are moved in the direction parallel to the trays 11 by the operation of the selecting mechanism 81, and the operating members 85 of the trays 11 selected by the operation of the moving mechanism 82 are moved. Since the drive space is formed adjacently in the parallel direction, the tray 11 can be reliably selected by the operating body 85 whose selection position is held by the holding means 83 via the selection mechanism 81.

Further, the holding means 83 has a holding pin 127 and a holding groove 171. The operation of the selection mechanism 81 causes the holding pin 127 to move to any one of the selection positions in the selection groove 172 of the holding groove 171. The operation of the mechanism 82 allows the tray to enter the holding groove 173 for each tray of the holding groove 171 from any one of the selected positions, thereby reliably holding the selected position.

The information recording disk selecting device 14 is provided, and the operation of the selecting mechanism 81 causes the drive arm 22 to operate.
1 in the direction parallel to the tray 11, and the moving mechanism 82 moves the drive arm 221 forward and backward with respect to the selected CD drive position of the tray 11, so that the tray 11 and the drive arm 221 are selected. 81 and can be integrally held by the holding means 83, so that the drive of the CD can be surely performed.

When the drive arm 221 is swung, C
In the CD changer which is moved forward and backward with respect to the drive position of D, the drive arm 22 is placed on the swing arm 181 which is swung about the arm shaft 182 and moved forward and backward with respect to the tray 11.
1 is supported in an anti-vibration state via the anti-vibration support means 236a to 236c, so that the vibration of the drive arm 221 during driving can be suppressed and the drive of the CD can be stabilized.

Further, a support arm 230 is provided at a fixed position and the drive arm 221 is swingably connected to the drive arm 221. The anti-vibration support means 236a to 236c are moved in a state where the drive arm 221 is swung to the drive position. The tip side of the drive arm 221 corresponding to the apex position of the substantially triangle, the connection side between the drive arm 221 and the support arm 230, the support arm
Since the drive arm 221 is disposed at the three points on the tip side of the drive unit 230, the attitude of the drive arm 221 during drive can be stabilized, the support state of the CD can be stabilized, and the drive of the CD can be further stabilized.

Further, since the anti-vibration support means 236c is provided on the drive arm 221, the support state of the CD during driving can be further stabilized, and the drive of the CD can be more reliably stabilized.

Further, the anti-vibration support means 236a to 236c have a spring 240 for lifting the drive arm 221 side, and also support a damper 238 for supporting in an anti-vibration state and a connecting shaft 239 inserted and connected to the damper 238. Because of this, the structure of support, vibration isolation and connection can be integrated, and can be made compact.

Further, with the regulating means 251, the CD is chucked by the turntable 223 and the anti-vibration supporting means 23
6a to 236c allow vibration-proof support,
In order to hold the drive arm 221 in a fixed position by restricting the support in the anti-vibration state by the anti-vibration support means 236a to 236c in a state other than the time of chucking, even if the drive arm is provided with the anti-vibration support means 236a to 236c, The forward and backward movement of the 221 with respect to the tray 11 and the chucking of the CD by the turntable 223 can be reliably performed.

Further, the CD can be disengaged in the restricted state of the regulating means 251 and the CD can be disengaged in the permitted state of
Chuck mechanism 291 for chucking the turntable 223
Is provided, the CD can be chucked and dechucked in conjunction with the regulating means 251, and another mechanism for holding the CD between the turntable 223 and the CD can be eliminated and simplified.

Further, the trays 11 are arranged in a plurality of stages, and one of the trays 11 in the plurality of stages is selected by the selecting mechanism 81 to move the drive arm 221 to the corresponding selected position, and the moving mechanism 82 Thus, even in a configuration in which a drive space is formed adjacent to the selected tray 11 in the parallel direction and in which the drive arm 221 can enter, the drive of the CD can be stabilized.

Further, since a plurality of trays 11 are incorporated in the body 1, a CD changer for selectively driving a plurality of CDs can be downsized.

Note that the information recording disk has a read-only,
Includes both recording-only, recording and playback, and includes, for example, compact discs, video discs, magneto-optical discs, and flexible magnetic discs.

[0170] The drive unit includes read-only, record-only, and both recording and playback. Similarly, the head unit includes read-only, recording-only, and both recording and playback.

[0171] The drive means recording or reproduction of the information recording disk, and includes rotation of the information recording disk.

[0172]

According to the information recording disk selection device of the present invention, when the tray is moved by the moving mechanism, since the holding mechanism is provided for holding the selection mechanism at the selected position of the selection mechanism, vibration or the like is provided. Accordingly, the selection position does not shift, and it is possible to prevent a tray selection failure and a position shift.

According to the information recording disk selecting device of the second aspect, in addition to the effect of the information recording disk selecting device of the first aspect, the operating members disposed on both sides of the plurality of trays are provided with a selecting mechanism. In order to move the trays in the parallel direction by the operation of (1) and to form a drive space adjacent to the trays in the parallel direction selected by the operation of the moving mechanism, the holding position is held by the holding means via the selection mechanism. The selection of the tray can be ensured by the operating body.

According to the information recording disk selection device of the third aspect, in addition to the effect of the information recording disk selection device of the first or second aspect, the information recording disk selecting device has a holding pin and a holding groove as holding means, and The operation causes the holding pin to move to any selected position in the holding groove selection groove, and moves from any of the selected positions to the holding groove tray-specific holding groove from the selected position by the operation of the moving mechanism. Position can be reliably maintained.

According to a fourth aspect of the present invention, there is provided an information recording disk drive device comprising the information recording disk selecting device according to any one of the first to third aspects, wherein the drive arm is moved in the direction parallel to the trays by the operation of the selecting mechanism. ,
The operation of the moving mechanism moves the drive arm forward and backward with respect to the drive position of the information recording disc on the selected tray, so that the tray and the drive arm can be linked by the selection mechanism and can be integrally held by the holding means. In addition, the information recording disk drive can be reliably performed.

According to the information recording disk drive of the fifth aspect, in addition to the effect of the information recording disk drive of the fourth aspect, since a plurality of trays are incorporated in the main body of the drive, a plurality of pieces of information are recorded. An information recording disk drive device that selectively drives a recording disk can be downsized.

[Brief description of the drawings]

FIGS. 1A and 1B show an embodiment of an information recording disk drive device according to the present invention, wherein FIG. 1A is a plan view of a disk selection device in a standby state, and FIG. 1B is a rear view of the disk selection device in a standby state.

FIG. 2 is a plan view of the disk selecting device.

FIG. 3 is a perspective view of the information recording disk drive device.

FIG. 4 is a plan view of the information recording disk drive device with an upper plate removed.

FIG. 5 (a) is a plan view when the loading mechanism is loaded, and FIG. 5 (b) is an inner side view of a part when the loading mechanism is loaded.

FIG. 6A is a plan view of the loading mechanism when the loading mechanism is ejected, and FIG. 6B is a cross-sectional view of a part of the tray when the loading mechanism is ejected.

FIG. 7 is a cross-sectional view of the moving mechanism of the disk selecting device during standby;

FIG. 8 is a cross-sectional view showing a state where a tray is selectively moved by the moving mechanism of the disk selecting device.

FIG. 9 is a cross-sectional view showing a state where the tray selection movement by the movement mechanism of the disk selection device is completed.

FIG. 10A is a plan view of the drive arm when the drive arm is on standby, and FIG. 10B is a rear view of a part of the drive arm when the drive arm is on standby.

FIG. 11A is a plan view of the drive arm body during reproduction, and FIG. 11B is a rear view of a part of the drive arm body during reproduction.

FIG. 12 is a plan view of the selection plate according to the third embodiment.

FIG. 13 is a cross-sectional view corresponding to the AA cross section in FIG. 12;

FIG. 14 is a sectional view corresponding to the section taken along line BB of FIG. 12;

FIG. 15 is a front view of the drive arm body with a part of a distal end portion cut away.

FIG. 16 is a plan view of a turntable part according to the third embodiment.

FIG. 17 is a side view of the turntable part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body as drive main body 11 Tray 14 Information recording disk selection device 28 Guide roller as operation receiving part 81 Selection mechanism 82 Moving mechanism 83 Holding means 85 Operating body 127 Holding pin 171 Holding groove 172 Selection groove 173 Holding groove 221 Drive arm CD Information recording disk

Claims (5)

[Claims] 1. A plurality of trays arranged in parallel and movable in the parallel direction and capable of supporting information recording disks, respectively, and movable to selected positions corresponding to these trays, A selecting mechanism for selecting any one of the plurality of trays for driving the information recording disk, and a moving mechanism for moving the tray and setting the information recording disk of the tray selected by the selecting mechanism in a drivable state. And an holding means for holding the selection mechanism at a position selected by the selection mechanism when the moving mechanism operates. 2. Each of the trays has an operation receiving portion on both sides of each of the trays. The trays are moved in both sides of the plurality of trays in a direction parallel to the trays by the operation of a selection mechanism, and the operation of the moving mechanism is performed. 2. The information recording disk selecting device according to claim 1, wherein an operating body for forming a drive space is disposed adjacent to the tray selected in parallel with the tray via an operation receiving portion. 3. The holding means has a holding pin which is moved to any one of the selected positions by the operation of the selection mechanism and is moved in a fixed direction from any of the selected positions by the operation of the moving mechanism. Selection grooves that allow the pins to move to any of the selected positions, and tray-specific holding that allows the holding pins to be moved in and out of the selected positions by communicating in a fixed direction from each selected position of the selection grooves. 3. The information recording disk selecting device according to claim 1, further comprising a comb-like holding groove having a groove for use. 4. An information recording disk selecting device according to claim 1, wherein the information recording disk is moved in a direction parallel to the trays by an operation of the selecting mechanism, and the information recording disks of the tray selected by the operation of the moving mechanism. An information recording disk drive device comprising: a drive arm that moves forward and backward with respect to a drive position. 5. The information recording disk drive device according to claim 4, further comprising a drive device main body, wherein a plurality of trays are incorporated in the drive device main body.