JPH0376550B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is directed to the above-mentioned optical disc on a rotary table which is a playback position provided in a disk player for playing back disks such as optical disks, video disks, or record disks. The present invention relates to a disk transfer device for a disk player that transfers a disk.

[Background technology and its problems]

Conventionally, in a disc player such as an optical disc player that uses a laser beam to read and reproduce information signals recorded on an optical disc, the disc inserted into the player body is pulled in and the playback position is set. A disk transfer device has been proposed that automatically performs a series of loading operations for loading a disk onto a rotary table.

By the way, when loading a disc in a disc player equipped with this type of disc transfer device, the disc inserted into the player body may fall out of the disc transfer device while being transferred onto the rotary table serving as the playback position. If this happens, not only will a reliable and safe loading operation not be performed, but the inserted disk will be damaged. Furthermore, smooth playback of the disk becomes impossible.

[Purpose of the invention]

Therefore, the present invention securely holds the disk inserted into the player body, and performs the loading operation of pulling the disk in and transferring it to the playback position, and the ejection operation of transferring the disk from the playback position to the insertion section side, in a reliable and safe manner. to be able to do it,
This has been proposed for the purpose of providing a disk transfer device for a disk player that protects the disk and allows smooth playback operations immediately.

[Summary of the invention]

In order to achieve the above-mentioned objects, the present invention has the following features:
The disc is rotatably supported by a slide base 17 that is slidably driven by a drive source 13 with the rotation direction opposite to the insertion direction of the disc, and is inserted by biasing means 87 and 91. disk 2
position regulation of the pair of rotating arms 27, 39 that are biased in a direction approaching 0, and the disk 20 that is placed opposite to the pair of rotating arms 27, 39 with the inserted disk 20 in between. Means 56,5
7, a pair of guide portions 93 and 95 that respectively guide the rotation operation of the disk 20 inserted in a direction away from the outer peripheral end of the disk 20 into which the pair of rotation arms 27 and 39 are inserted; The guide portions 93 and 95 are continuously provided in each of the pair of guide portions 93 and 95 in a direction substantially perpendicular to the guide portions 93 and 95, and when the slide base 17 slides, the pair of rotation arms 27 and 39 are Sliding of the slide base 17 that guides the slide base 17 in a direction parallel to the sliding direction and restricts the rotation position of the pair of rotation arms 27 and 39 to a position that holds the inserted disk 20. and a guide portion 85 extending in the direction, so that when the disk 20 is inserted, the pair of rotating arms 27, 39 and the position regulating means 56, 57 prevent the disk 20 from coming off. This is what I did.

That is, in the present invention, when the disk 20 is inserted, the pair of rotating arms 27 and 39, which are disposed on the slide base 17 so as to be able to rotate in opposite directions, are opened by the disk 20. The slide base 1 is rotated against the biasing force of the biasing means 87 and 91, following the insertion operation of the disk 20.
7, the pair of rotating arms 27 and 39 are inserted into the rotating position by the guide portion 85 extending in the sliding direction of the slide base 17 to the position where the disc 20 is held. By being restricted by this, the pair of rotating arms 27, 39 and the position restricting means 56, 57 can prevent the inserted disk 20 from coming off.

〔Example〕

The present invention will be described below with reference to an example in which the present invention is applied to an optical disc player that irradiates a signal recording surface of an optical disc with a laser beam to read and reproduce information signals recorded on the optical disc.

FIG. 1 shows the external appearance of an optical disc player to which the present invention is applied.The front panel of the player body 1 includes a playback start/stop button 2, a song selection button 3, a song number and Time display section 4
An eject button 5 is also provided, and a disk insertion slot 6 is provided into which an optical disk mounted on the player for playback is inserted.

The apparatus of the present invention is disposed within the player body 1 of the disc player as described above, and the disc insertion portion 100 is arranged in correspondence with the disc insertion slot 6 of the player body 1. As shown in FIGS. 2 and 3, the device of the present invention is formed by cutting out a portion of the chassis substrates 7, which are provided in pairs on each side of the chassis substrates 7 provided in the player body 1. The guide shafts 10, 11 are slidably supported by a pair of mutually parallel guide shafts 10, 11 installed across the support pieces 8, 9, and are driven by a motor 13 serving as a drive source.
A slide base 17 is slidably driven from the disk insertion slot 6 side to the rotary table 16 side which rotates together with a spindle 15 which is rotationally driven by a spindle motor 14 disposed in the player main body 1. have. The slide base 17 is formed into a flat plate shape, and is slidably supported by the guide shafts 10 and 11 through mutually parallel through holes 18 and 19 provided on both sides. A notch 22 is formed into which an optical pickup device 21 enters, which emits a laser beam that irradiates the rotary table 16 and the optical disk 20 placed on the rotary table 16 when the rotary table 16 is slid to the side. .

A first rotating arm 27 and a second rotating arm 39, which loosely fit and support an optical disk 20 inserted together with a disk position regulating means to be described later, are rotatably attached to one side end of the slide base 17. is supported by The first rotating arm 27 is inserted into a through hole 25 formed at one end of the slide base 17, as shown in FIG.
The first rotary arm 27 has a substantially fan-shaped shape that is rotatably supported by passing through a through-hole formed on the proximal side of a support shaft 26 that is erected on the support shaft 26 . The cylindrical body 30 is inserted into a through hole 28 formed in the cylindrical body 30 and is rotatably inserted into a support shaft 29 that is mounted on the first rotating arm 27.
This cylindrical body 30 includes a cylindrical holding member 32 provided with a flange portion 31 that is inserted into the distal end side of the support shaft 29.
By fitting the E-ring 34 into a fitting groove 33 provided at the tip of the support shaft 29, the E-ring 34 is attached to the support shaft 29 together with the presser member 32. The other end of the arcuate portion of the substantially fan-shaped first rotating arm 27 is fitted with a through hole 35 formed on one side of the slide base 17. A switch operation piece 37 for operating a first changeover switch 36 of the motor 13 for driving the attached slide base 17 is provided in a protruding manner.

On the other hand, the second rotating arm 39 has a substantially fan-shaped first
The second rotating arm 39 is inserted into and supported through a cylindrical spacer 38 at the distal end side of a support shaft 26 that supports the second rotating arm 27, and is inserted into a through hole 40 bored at the distal end side of this second rotating arm 39. A cylindrical body 42 rotatably inserted through a support shaft 41 that is erected on the second rotary arm 39 is interposed therebetween. The second rotating arm 39 is inserted into the support shaft 26 so that the cylindrical shaft insertion portion 43 integrally provided on the base end side is overlapped on the spacer 38, and is inserted from the rotating piece 27 surface. The height of the support shaft 26 is maintained at a predetermined height.
By fitting an E-ring 45 into a fitting groove 44 provided at the tip of the support shaft 26, the E-ring 45 is rotatably supported by the support shaft 26. Further, the cylindrical body 42 is connected to the second rotating arm 3
The support shaft 4 is inserted into the support shaft 42 so as to be located on the lower surface side of the second rotation arm 9 and protrudes from the through hole 40 of the second rotation arm 39 to the upper surface side of the second rotation arm 39.
The presser member 47 is supported by a cylindrical presser member 47 provided with a flange portion 46 that is inserted into the tip end of the support shaft 41, and the E ring 49 is fitted into a fitting groove 48 provided at the tip of the support shaft 41. It is attached to the above-mentioned support shaft 41 so as to sandwich the second rotating arm 39 together with 47. The cylindrical body 42 attached to the second rotating arm 39 in this way is attached so that the mounting height position is the same with respect to the top surface of the slide base 17 and the cylindrical body 30 attached to the first rotating arm 27 side. It will be done.

Further, at the other end of the slide base 17, a first and second rotating arm 2 is provided so as to face the first and second rotating arms 27, 39.
Optical disk 20 inserted together with 7 and 39
Third and fourth rotating arms 56 and 57 are provided, which constitute position regulating means that loosely fit and support the. These third and fourth rotating arms 56, 57
As shown in the figure, each has a cylindrical shaft insertion portion 54, 55 at its base end through which a support shaft 53 is inserted, and these shaft insertion portions 54, 55 are stacked so as to face each other,
A through hole 5 bored at the other end of the slide base 17
The insertion portions 54 and 55 are inserted into the support shaft 53 which is inserted into the slide base 17 and is installed in the slide base 17.
The E-ring 60 is fitted into a fitting groove 59 provided at the tip of the support shaft 53 to be rotatably attached to the support shaft 53. Further, a cylindrical body 6 is connected to the tip side of the third and fourth rotating arms 56 and 57 via support shafts 61 and 62.
3 and 64 are rotatably attached. The cylindrical body 63 attached to the third rotating arm 56 has a through hole 6 formed at the tip side of the third rotating arm 56.
5, the third rotating arm 5
6 and is supported by a cylindrical holding member 67 provided with a flange portion 66 that is inserted into the tip side of the spindle 61, and a fitting provided at the tip of the spindle 61. E ring 69 in groove 68
By fitting together, it is attached to the support shaft 61 together with the presser member 67. Further, the cylindrical body 64 attached to the fourth rotating arm 57 is attached to the support shaft 64 so as to be located on the lower surface side of the rotating arm 57.
A cylindrical flange portion 71 is provided with a flange portion 71 that is inserted into the tip of the support shaft 62 that projects from a through hole 70 formed at the tip of the pivot arm 57 to the upper surface side of the pivot arm 57. A fitting groove 7 supported by a pressing member 72 and provided at the tip of the support shaft 62
By fitting the E-ring 74 into the fourth rotary arm 57, the fourth rotary arm 57 is attached to the support shaft 62 so as to be held together with the presser member 72. In this way, the cylindrical bodies 63 and 64 attached to the third and fourth rotating arms 56 and 57 are attached to the upper surface of the slide base 17 so that their attachment heights coincide with each other.

By the way, the support shaft 26 is erected on the slide base 17 and supports the first and second rotation arms 27 and 39, and the third and fourth rotation arms 56, which are also erected on the slide base 17, A support shaft 53 supporting the slide base 17 is provided opposite to each other on both sides of the slide base 17 on a line orthogonal to the sliding direction of the slide base 17, and supports the first and second rotation arms 27, 39 and the third The lengths from the respective support shafts 26, 53 of the fourth rotating arms 56, 57 to the support shafts 29, 41 and 61, 62 provided at each tip are made equal.

Further, on opposite sides of the chassis board 17, first and second rotating arms 27, 39, and third and fourth rotating arms 56, which are attached to the slide base 17 and move together with the slide base 17, are provided. , 57, a pair of guide members 75 and 76 formed of sheet metal members having an L-shaped cross section are attached to face each other. These guide members 75 and 76
8 and 79 extend over the guide rods 10 and 11 through which the slide base 17 is inserted and supported, and the rising portion 8
0 and 81 are fixed to the side surface of the chassis board 7 with screws 83 and attached to the chassis board 7. Each horizontal portion 7 of these guide members 75, 76
Guide grooves 85 and 86 are bored in the grooves 8 and 79 with a gap W smaller than the diameter R of the optical disk 20 inserted parallel to the sliding direction of the slide base 17. In the guide groove 85 constituting the second guide part of the present invention, which is bored in the horizontal part 78 of one of the guide members 75, a guide groove 85 is provided at the tips of the first and second rotating arms 27, 39. Cylindrical bodies 30 and 4 are inserted and supported by support shafts 29 and 41 provided as shown in FIG.
Cylindrical portion 32 of presser members 32, 47 supporting 2
a, 47a are engaged, and the other guide member 7
The guide groove 86 bored in the horizontal part 79 of 6 has a third
and holding members 67, 7 that support the cylindrical bodies 63, 64 that are inserted and supported by support shafts 61, 62 that are installed at the tips of the fourth rotating arms 56, 57.
The two cylindrical portions 67a and 72a are engaged.

The support shafts 29, 41 are installed at the tips of the first and second rotating arms 27, 39 which are engaged with the guide groove 85 of one of the guide members 75 via the holding members 32, 47 as described above. A tension spring 87 serving as a biasing means for biasing the first and second rotating arms 27, 39 to rotate in a direction toward each other is provided between the tips of the springs 87 and 87.
The support shafts 61 are installed at the tips of the third and fourth rotating arms 56 and 57, which are similarly engaged with the guide grooves 86 of the other guide member 76 via the holding members 67 and 72. , 62, the above-mentioned third
A tension spring 88 is provided as a biasing means for biasing the fourth rotation arms 56 and 57 toward each other.

The guide grooves 85 and 86 bored in each of the guide members 75 and 76 are connected to the support shaft 26 and the third rotation arm that commonly support the first and second rotation arms 27 and 39.
and a slide base 17 that is inward of the support shaft 53 that commonly supports the fourth rotating arms 56 and 57.
Since it is provided on the disk mounting portion 90 side of the
and second rotating arms 27, 39, third and fourth
The rotation arms 56, 57 of the respective tension springs 87,
Due to the action of
9, 41 and 61, 62 through the holding members 32, 47 and 67, 72, respectively, through the guide holes 85,
It is brought into pressure contact with one inner side of 86. Therefore,
Each guide groove 85, 86 is connected to the first and second rotating arms 27, 39, and the third and fourth rotating arms 5.
It acts against the biasing force of the tension springs 87 and 88 of 6 and 57 to restrict rotation. and,
first and second rotating arms 27 attached via a support shaft 26 that is erected on the slide base 17;
39. The third and fourth rotating arms 56 and 57, which are also attached to the slide base 17 via a support shaft 53, follow the sliding movement of the slide base 17 and move through the respective guide holes 85. , 86 and is moved over the range of these guide grooves 85, 86.

Further, at approximately the center position of each of the guide grooves 85 and 86, there is a second slide base 17 located on the side of the disc insertion opening 6 of the player main body 1, which is the frontmost side.
When the optical disk 20 is in a state where the optical disk 20 can be mounted as shown in the figure or when the optical disk 20 placed on the rotary table 16 is ejected, the first rotation arm 27 and the third rotation arm 57 are moved by the tension springs. 87, 88 and disk ejection spring 9 described later
The optical disk 20 due to a tensile force of 1.92
The first and third rotating arms 2 are rotated in a direction approaching each other so as to have a diameter smaller than that of
Arc-shaped rotation guide grooves 93, 94 into which the support shafts 29, 61 installed are inserted are bored at the distal ends of the shafts 7, 57. These rotation guide grooves 93 and 94 are formed so as to curve toward the front side of the slide base 17, which is the disk insertion portion 100 side. Further, at the front end of each of the guide grooves 85, 86, the tips of the second and fourth rotating arms 39, 57 are pressed by the inserted optical disk 20 against the tension springs 87, 88. Established support shafts 41, 62
The gap L between them is made larger than the diameter R of the optical disk 20, and the second and fourth rotating arms 39, 57 are allowed to rotate so that the optical disk 20 can be inserted. Relief grooves 95 and 96 constituting the first guide portion of the slide base 1
7 are perforated so as to face in both directions.

Furthermore, second and fourth rotating arms 39, 57 that move together with the slide base 17 are provided at both front corner portions of the slide base 17, and are provided with rotating arms 39, 57 that are continuously drilled in guide grooves 85, 86. When reaching the guide grooves 93 and 94, these guide grooves 9
In order to avoid entering 3.94, the above 2nd
Further, locking step portions 97 and 98 are provided at the distal ends of the fourth rotating arms 39 and 57 to lock the proximal ends of the support shafts 41 and 62 erected thereon.

As mentioned above, the first and second pivot arms 27,
39, on the rear end side of the slide base 17 to which the third and fourth rotating arms 56, 57 are attached, that is, on the inner side of the player body 1, there is a pair of arms extending inwardly of the player body 1. leg pieces 101, 102
are integrally provided. These leg pieces 101,
102 is provided parallel to the through-holes 18 and 19 through which the guide shafts 10 and 11 are inserted, with an interval sufficient for the rotary table 16 and the optical pickup device 21 to enter therein.

As shown in FIG. 7, on the leg pieces 101 and 102, sliding plates 103 and 104, which are integrally provided on both sides of the U-shaped connecting member 106, are arranged so as to correspond and overlap with each other. has been done. A rack 105 is formed on the other side of the sliding plates 103 and 104, and the driving force of the drive motor 13 for sliding the slide base 17 along the guide rods 10 and 11 is transmitted to the rack 105. Gears 107 constituting the transmission mechanism mesh as shown in FIG. The transmission mechanism includes a gear 107 that meshes with a rack 105 and a bevel gear 10 that is coaxially provided.
8 is configured by meshing a bevel gear 108 attached to the drive shaft 13a of the drive motor 13, and the drive motor 13 has the drive shaft 13a connected to the slide base 17
It is arranged parallel to the sliding direction of the player body 1, so that it can be stored efficiently in the player body 1.

By the way, the sliding plates 103 and 104 provided on the leg pieces 101 and 102 are
Fixing pins 109, 110, 11 attached to 2
1, 112 are long holes 113, 114, 115, 11 whose longitudinal direction is the sliding direction of the slide base 17.
6 are engaged with each other, and is slidably attached over the range of the elongated holes 113, 114, 115, and 116 on the respective leg pieces 101 and 102. Above leg piece 1
A through hole 117 is formed in the approximate center of the portion where the sliding plates 103 and 104 of 01 and 102 are overlapped, respectively, and the through hole 117 has the leg pieces 101 and 102 inserted therein as shown in FIG. A slide ball 118 having a diameter larger than the thickness W is provided, and this slide ball 118 is connected to the sliding plates 103, 104 and the leg piece 10.
1 and 102 are held between the chassis base plate 7 that supports them. In addition, the chassis board 7 includes
A hemispherical recess 119 into which the slide ball 118 falls when the slide base 17 is slid to the innermost side of the player body 1 is provided.
is on the frontmost side of the slide base 17 on each leg piece 101, 102, that is, each elongated hole 113, 11
The rear end edges of 4, 115, 116 are fixed pins 109,
A hemispherical recess 120 is provided into which the slide ball 118 falls when it is in a state of being in contact with and being locked with the slide balls 110, 111, and 112. Therefore, when the slide base 17 is at the forwardmost position of the player body 1 (disc insertion slot 6 side) and the slide ball 118 has not fallen into the recess 119 of the chassis board 7, the leg pieces 10
1 and 102 and sliding plates 103 and 104 clamp a steel ball 118 in pressure contact with each other, and the sliding plates 103 and 104 slide integrally with the slide base 17 by driving the drive motor 13.
Further, when the slide base 17 reaches the innermost side of the player body 1 and the slide ball 118 falls into the recess 119 of the chassis board 7 and comes off from the recess 120 on the sliding plates 103 and 104 side, as shown in FIG. Only the sliding plates 103 and 104 mentioned above are leg pieces 1.
01 and 102, and can further move inward of the player body 1.

Further, on the chassis board 7 on the inner side of the player main body 1, an operator is placed opposite to an operating protrusion 106a provided on a connecting member 106 that connects one sliding plate 103, 104 to drive the drive motor 13. A second changeover switch 121 is provided to stop the switch.
When only the sliding plates 103 and 104 are further slid inward of the player body 1 and reach the innermost position, the changeover switch 120 is operated by the operation protrusion 106a of the connecting member 106 to stop the drive motor 13. .

Further, upright pieces 123 and 124 are provided on the rear end edges of the pair of leg pieces 101 and 102 that are integrally provided on the slide base 17, respectively, and a rotation shaft that is disposed across these upright pieces 123 and 124. 1
A chuck plate 126 is rotatably attached to the chuck plate 25 with its proximal end inserted through and supported. This chuck plate 126 is pivotally supported by the rotation shaft 125 as shown in FIG.
A notch provided in the middle of a U-shaped connecting member 106 connecting the sliding plates 103 and 104 so as to extend from the gap to the notch 22 of the slide base 17. A tension spring 128 stretched between the connecting members 106 of the strip 127 always urges the connecting members 106 upwardly.

A disk clamp device 130 is attached to the tip side of the chuck plate 126 for clamping the optical disk 20 placed on the rotary table 16 in cooperation with the rotary table 16. As shown in FIG. 14, this disk clamp device 130 has a holder part 132 containing a built-in magnet 131 loosely fitted into a through hole 126a formed in a chuck plate 126, and flanges 133 provided at both ends of the holder part 132. , 134 to prevent the disc from coming off, and is attached to the chuck plate 126 so as to be slightly movable in the thrust direction and the radial direction, thereby preventing the optical disc 20, which is positioned and placed on the rotary table 16, from shifting. The optical disk 20 is crimped and fixed to prevent it from happening.

Further, on both sides of the chuck plate 126, a pair of disk support arms 13 each having an L-shaped cross section at the tip side are provided.
5,136 are provided. On the surfaces of the disk receiving parts 137 and 138, which are the horizontal parts facing the disk clamp device 130 on the distal end side of these disk support arms 135 and 136, there is a felt or the like to prevent damage to the optical disk 20 to be placed. A protection member 139 having an inclined surface is provided.

Further, in the side walls 141, 142 provided on both sides of the base end of the chuck plate 126, inclined long grooves 143, 144 forming cam surfaces are bored, as shown in FIG. Guide pins 147 and 148, which are attached to and inserted into the rising pieces 145 and 146 of the connecting member 106 that connects the sliding plates 103 and 104, are engaged with each other. The inclined long grooves 143 and 144 are connected to the chuck plate 126.
The hole is slanted downward from the proximal end toward the distal end. And sliding plates 103, 104
When the guide pins 147, 148, which move together with the sliding plates 103, 104, move away from the leg pieces 101, 102 of the slide base 17 and independently slide inward into the player body 1, By moving in the direction, the inclined long groove 143,
144, and rotates the chuck plate 126 against the tension spring 128 about the rotary shaft 125 toward the rotary table 16, and at least the disk receiving portions 13 of the disk support arms 135, 136.
7, 138 to a position below the rotary table 16, and the optical disk 20 placed on the disk receivers 137, 138 is placed on the rotary table 16.
At the same time, the disk clamp device 130 is pressed onto the rotary table 16.

The overall conceptual diagram of FIG. 15 shows a series of operations for mounting the optical disc 20 on the optical disc player to which the present invention is applied and having the above-described configuration, and for ejecting the mounted optical disc 20.
This will be explained below with reference to the operation explanatory diagrams of FIGS. 16 and 17.

First, to mount the optical disc 20, operate the eject button 5 provided on the front of the player body 1 to drive the drive motor 13 in reverse.
The slide base 17 is moved to the front close to the disk insertion slot 6 of the player body 1 as shown in FIGS. 2 and 4. This slide base 17
When moved to the front of the player body 1,
As shown in FIG.
The tip of the rotating arm 56 is connected to the rotating guide grooves 93, 9.
4, and the tension springs 87, 8
8 and the tension force of the disk ejection springs 91, 92, the support shaft 29,
61 is placed in a retracted state. On the other hand, the second rotating arm 39 and the fourth rotating arm 57 have support shafts 41 and 62 at their tips extending along the respective guide grooves 85 and 86 at the front end of the guide grooves 85 and 86. be placed in a state where

Here, the disc receiving portion 137 of the chuck plate 126,
When the optical disk 20 is inserted into the disk insertion part 100 so as to be placed on the optical disk 138, the front end of the guide grooves 85 and 86, which are provided in parallel with a distance L smaller than the diameter R of the optical disk 20, is inserted. The second and fourth rotating arms 39, 57, on which the support shafts 41, 62 are positioned, are located in the vicinity where the center hole 20a of the optical disk 20 passes, that is, when the center of the optical disk 20 is located on the support shafts 41, 62. It is rotated toward the relief grooves 95 and 96 against the urging force of the tension springs 87 and 88 until it crosses the connecting line. When the optical disk 20 is further inserted and the center line of the optical disk 20 crosses the line connecting the support shafts 41 and 62, the tension springs 87 and 88 cause the second and fourth rotating arms 39 and 57 to Guide grooves 85, 8
While rotating back to the 6 side, the outer peripheral edge of the optical disk 20 is supported.

Simultaneously with the rotation operation of the second and fourth rotation arms 39, 57, the support shaft 29, 61 is in the retracted state of the first and third rotating arms 2
7, 56 are tension springs 87, 88 and disk ejection springs 91, 92, which are caused by the optical disk 20.
The support shafts 29, 61 are guided by the rotation guide grooves 93, 94 and rotated until they reach the guide grooves 85, 86, against the urging force of.

The second and fourth rotating arms 39, 57 and the first and third rotating arms 27, 56 were rotated toward the guide grooves 85, 86, respectively, by the optical disk 20 inserted as described above. In this state, when the center hole 20a of the optical disk 20 is inserted to a position corresponding to the center of the disk clamping device 130, the optical disk 20 is inserted into the first, second, and third holes with the center in between as shown in FIG. Each support shaft 29 at the tip of the third and fourth rotating arms 27, 39, 56, 57,
It is loosely fitted and supported at four points 41, 61, and 62.

By the way, when the substantially fan-shaped first rotation arm 27 is rotated by inserting the optical disk 20 as described above, the first changeover switch 36 is activated by the switch operation piece 37 provided at the other end of the circular arc portion. is operated, and the drive motor 13 is driven in the normal rotation direction. When the drive motor 13 is driven in the forward rotation direction, the slide base 17 is guided by the guide shafts 10 and 11 and is transferred inside the player main body 1, and the four rotating arms as described above are mounted on the slide base 17. The optical disk 20 loosely fitted and supported by 27, 29, 56, and 57 is also transferred into the player main body together with the slide base 17. The slide base 17 moves the player body 1 until the center hole 20a of the optical disk 20 loosely fitted and supported here reaches the position shown in FIG. 10 and FIG. transferred inward. At this time, the optical disk 20
The first, second, third and fourth rotating arms 27, 39, 56, 57 which loosely fit and support the guide grooves 86,
87 to move parallel to the sliding direction of the slide base 17. In addition, slide base 17
The optical disk 20 is moved from the state in front of the plate body 1 to the rotary table 1 as described above.
6, the slide ball 118 is on the chassis base plate 7 and does not fall into the recess 119 of the chassis base plate 7 as shown in FIG. Piece 10
1 and 102 and the sliding plates 103 and 104 are in a state where the slide ball 118 is held in pressure contact with the slide ball 118, and the sliding plates 103 and 104 and the slide base 17 are slid together.

Then, as described above, the center hole 20a of the optical disk 20 extends to the inside of the player body 1 corresponding to the rotary table 16 on the slide base 17.
When the slide ball 118 is driven to slide, the slide ball 118 reaches the state shown in FIG.
Only the first leg 104 slides on the leg pieces 101 and 102.
As shown in FIG. 3, the player body 1 is further moved inward. When only the sliding plates 103 and 104 slide, the rising pieces 145 and 14 of the connecting member 106 that connects these sliding plates 103 and 104 together
Guide pins 147, 148 inserted from
The chuck plate 126 is rotated about the rotation shaft 125 toward the rotation table 16 against the tension spring 128. Then, the disk receiving portions 13 of the disk support arms 135, 136
7 and 138 reach a position below the rotary table 16, and the optical disk 20 placed on the disk receivers 137 and 138 is transferred onto the rotary table 16 in a direction perpendicular to the sliding direction of the slide base 17. At the same time, the disk clamp device 13
0 is crimped, and as shown in FIG. 14, it is centered and clamped on the rotary table 16. When the sliding plates 103 and 104 move to the innermost part of the player body 1, the changeover switch 121 is operated by one of the sliding plates 103 to stop the drive motor 13, and the optical disc 20 is moved to the innermost part of the player body 1. The installation operation is completed. Here, when the playback start/stop button 2 is operated, the rotary table 16 rotates and the optical pickup device 21 starts operating to start playing back the optical disc 20.

Next, an eject operation for ending playback of the optical disc 20 and ejecting the optical disc 20 to the outside of the player main body 1 will be described.

To take out the optical disc 20 from the player body 1, the eject button 5 is operated, and the drive motor 13 is driven in the reverse direction. When the drive motor 13 is driven in reverse, the slide ball 11 is rotated as shown in FIG.
8 has fallen into the recess 119 of the chassis base plate 7, only the sliding plates 103, 104 are in the recess 12 of the sliding plates 103, 104 as shown in FIG.
Leg piece 1 until the slide ball 118 falls to 0.
01 and 102 to the front of the player main body 1. In the process of sliding only the sliding plates 103, 104, the rising pieces 145, 146 of the connecting member 106
The guide pins 147, 148 inserted into the player body 1 also pass through the inclined long grooves 143, 144 provided in the chuck plate 126 together with the sliding plates 103, 104.
Move forward. Then, the chuck plate 126 is rotated about the rotation shaft 125 by the biasing force of the tension spring 128 so as to be pulled up above the rotary table 16, and the disk clamp device 130
is separated from the rotary table 16, and the optical disk 20 placed on the rotary table 16 is
The discs are placed on the disc receiving portions 137, 138 of the disc support arms 135, 136, and are placed in the state shown in FIG. Further, when the drive motor 13 is driven in the reverse direction, the elongated holes 11 of the sliding plates 103 and 104
The rear end of 3, 114, 115, 116 is fixed pin 1
09, 110, 111, 112, the sliding plates 103, 104 come to slide integrally with the legs 101, 102 of the slide base 17, and the slide ball 118 slides on the chassis as shown in FIG. It comes to ride on the recess 119 of the substrate 7. Then, the slide base 17 integrated with the sliding plates 103 and 104 is driven toward the front side of the player main body 1. When the slide base 17 is driven toward the front side of the player main body 1, the first and second rotating arms 27, 39 and the third and fourth rotating arms 56, 57 are moved into the respective guide grooves 85, 86. It is guided and moves to the front side of the player main body 1 together with the slide base 17. When the support shafts 26, 61 at the ends of these arms face the guide grooves 85, 86, the first and third rotating arms 27, 56 are moved to the rotating guide groove 93 by the biasing force of the disk ejection springs 91, 92. ,94. The first and third disk discharge springs 91 and 92
Rotation guide grooves 93, 9 of rotation arms 27, 56
4, the optical disk 20, which had been loosely fitted and held by the first, second, third and fourth rotating arms 27, 39, 56, 57, is moved into the player body 1 as shown in FIG. The disk is ejected outward from the disk insertion slot 6, and the eject operation is completed.

Here, when the first rotating arm 27 rotates so as to enter into the rotation guide groove 93, the arm 2
Switch operation piece 3 provided on the other end side of the arc-shaped portion of 7
7, the first changeover switch 36 is operated and the driving of the drive motor 13 is stopped.

Further, when the slide base 17 is slid to the front side of the player body 1, the second and fourth
The rotating arms 39, 57 also have respective guide grooves 85, 86.
The base ends of the support shafts 41, 61 installed at the tips of the arms 39, 57 are located at both front corners of the slide base 17. Since it is locked by locking step portions 97 and 98 provided in the section, it moves to the front end side of the guide grooves 85 and 86 without entering the rotation guide grooves 93 and 94.

[Other Examples]

In the embodiment described above, the position regulating means for loosely fitting and supporting the optical disk 20 inserted together with the first and second rotating arms 27 and 39 is connected to the first and second rotating arms 27 and 39. , 39, a pair of third and fourth rotating arms 56, 57 are pivotally supported on one support shaft 53, and each of the above-mentioned rotating arms 5
6 and 57 are guided by the guide groove 86 and moved into the rotation guide groove 94 to eject the optical disk 20. Any material may be used as long as it is sufficient to restrict the position of the disk 20 in the movement direction within its movement range. Therefore, the position regulating means may be constructed as a regulating wall that has the function of regulating the direction of movement of the optical disk 20 over its moving range.

〔Effect of the invention〕

As described above, when a disk is inserted, a pair of rotating arms disposed on a slide base so as to be able to rotate in opposite directions are urged to be opened by the disk. The pair of rotating arms are rotated against the biasing force of the means, and by the sliding drive of the slide base following the insertion operation of the disk, the pair of rotating arms are rotated by a guide portion extending in the sliding direction of the slide base. By restricting the rotational position of the disc to the position that holds the inserted disc,
Since the pair of rotating arms and the position regulating means prevent the inserted disk from coming off, once the disk is inserted into the player body, it is reliably held within the player body.

In particular, the disk is held by a pair of rotating arms whose rotational position is regulated by a guide portion extending in the sliding direction of the slide base, and a position regulating means disposed opposite these arms. can be reliably held, and it is possible to reliably prevent it from being pulled out even when pulled out with fingers. Therefore, it is possible to provide a disk player in which the disk can be transferred reliably and safely during the loading and ejecting operations, the disk can be protected, and a smooth playback operation can be performed immediately.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the external appearance of an optical disk player to which the present invention is applied, FIG. FIG. 4 is a front sectional view thereof, FIG. 4 is a side view thereof, FIG. 5 is an exploded perspective view showing the first and second rotating member parts constituting the present invention, and FIG. Similarly, FIG. 7 is an exploded perspective view showing the third and fourth rotating member portions, FIG. 7 is a perspective view showing the slide base and chuck plate, FIG. 8 is a sectional view showing the connecting member, and FIG.
The figure is a plan view showing a state in which the inserted disk is supported by a rotating arm, FIG. 10 is a plan view showing a state in which the disk is transferred onto a rotary table, and FIG. 11 is a side view thereof. , FIG. 12 is a cross-sectional view of the sliding plate and the leg part showing that the slide ball falls into the recessed part of the chassis board and only the sliding plate can slide, and FIG. 13 shows that only the sliding plate can slide. FIG. 14 is a sectional view of the sliding plate and leg portions showing a state in which the disc is mounted on a rotary table; FIG. FIG. 15 is a conceptual diagram schematically showing the entire disk-shaped member transfer device according to the present invention. FIG. 16 is an explanatory diagram showing the operation of mounting the optical disk, and FIG. 17 is an explanatory diagram showing the operation of ejecting the optical disk. 13...Motor, 17...Slide base, 3
9... Second rotating arm, 85... Guide groove serving as a second guide portion, 87... Tension spring, 95...
...Escape groove that becomes the first guide part.

Claims (1)

[Scope of Claims] 1. A biasing means 87 is rotatably supported on a slide base 17 that is slidably driven by a drive source 13 with a rotation direction opposite to the insertion direction of the disk. , 91 in a direction toward the inserted disk 20; The position regulating means 56 and 57 of the disk 20 are arranged, and the pair of rotation arms 27 and 39 respectively guide the rotation operation of the disk 20 inserted in a direction away from the outer peripheral end of the inserted disk 20. a pair of guide parts 93, 95 that are provided continuously in each of the pair of guide parts 93, 95 in a direction substantially perpendicular to the pair of guide parts 93, 95; The pair of rotating arms 27 and 39 are guided in a direction parallel to the sliding direction of the slide base 17, and the inserted disk 20 is
The pair of rotating arms 27, 3 are in a position to hold the
a guide portion 85 extending in the sliding direction of the slide base 17 to restrict the rotational position of the pair of rotation arms 27, 39 and the position restriction means when the disk 20 is inserted. 5
6 and 57 to prevent the disk 20 from coming off.