JPH1145492A - Disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control positional deviation of a pickup plate at a reproducing time and to reduce vibration of a disk by providing an abutment means for controlling positional fluctuation of a pickup arm turned from a housing position to a reproducing position. SOLUTION: A front side of a player main body part 5 is formed in a recessed circular arc shape answering to the circular arc of the disk, and a pickup/chuck rotary motor loading plate 500 for loading a pickup 56 is provided with a recessed circular arc shape part also and is constituted so as to be housed perfectly into the player main body part 5. At the reproducing time, the rotary motor loading plate 500 is turned horizontally counterclockwise around a rotary shaft 500a by a turning mechanism 57 to go out from the player main body part 5 and to position at the center of the disk. At this time, the rotary motor loading plate 500 is fitted to prescribed four recessed parts of a stopper 60 answering to upper/lower four reproducing positions, and the positional deviation of the rotary motor loading plate 500 in the upper/lower direction and the central direction of the disk at the reproducing time are restricted within the prescribed range.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player which uses a magazine in which a plurality of discs are stacked and loaded and selects and plays an arbitrary disc from the plurality of discs.

[0002]

2. Description of the Related Art As a conventional disk player of this kind, a plate on which a disk is mounted is slid in a front-rear direction or a horizontal direction and the plate is pulled out of a magazine so that the plate is positioned on a pickup of a player main body, and There has been known a disk chucking mechanism provided in a main body for clamping and rotating a disk on the plate.

However, in such a conventional configuration, it is necessary to secure a space for pulling out a disk from the magazine on the disk player side, and there is a disadvantage that the space increases the shape of the disk player.

Therefore, instead of sliding the plate on which the selected disk is mounted, the plates on which the upper and lower disks are mounted are separated from the selected disk in the vertical direction, and the pickup and the disk are separated. A structure is conceivable in which a pickup arm equipped with a chucking mechanism is moved into a magazine by rotation to clamp a selected disc. According to this, the size of the disc player can be reduced as much as the drawer space is not required as compared with the structure in which the selected disc is pulled out and played.

[0005]

The pickup arm in the above configuration has a length equal to or greater than the radius of the disk, and upon reproduction, the disk, a disk chucking mechanism, and a heavy object such as a pickup are placed. Since this pickup arm is supported only by a rotation shaft, vibration is likely to occur during reproduction due to eccentricity of the disc. In addition, when resonance occurs and the vibration increases, the optical lens may jump to an undesired track (jump of sound).

[0006]

SUMMARY OF THE INVENTION In view of the above, a disc player of the present invention uses a magazine in which a plurality of discs are loaded one by one on a plate, and selects an arbitrary disc from the plurality of discs. In a disc player to be played in, a pickup arm mounted with a disc catching mechanism and a pickup and rotatably supported, and turning means for turning the pickup arm from a storage position to a reproduction position in parallel with the disc surface; A hitting means is provided for restricting a position change of the pickup arm at a reproduction position of the pickup arm.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. (Outline Description) First, outline will be described based on the perspective view of FIG. The disc player according to this embodiment includes a magazine 1 and a player unit 2. When playing, the magazine 1 is loaded into the player unit 2. The magazine 1 is provided with four plates 11, and a disk 12 can be placed on each plate 11. Each plate 11
Is provided so as not to slide but to move up and down together with an upper lid (not shown).

The player section 2 includes a player chassis 3
, An elevator mechanism 4 and a player body 5. An accommodation space for accommodating the magazine 1 is provided at a front side of the player chassis 3, and the player main body 5 is disposed at a depth outside the accommodation space of the chassis 3.

When the magazine 1 is loaded in the player section 2 and an operation for selecting a disc is performed, the player main body section 5 moves up and down by the elevator mechanism 4 and stops at a position corresponding to the selected disc. Next, the plate separation slide plates 51 (511, 512) provided on both sides of the player main body portion 5 advance forward, and the first sharpened portion 51a causes the plate on which the selected disk 12 is mounted. 11 and all the upper plates 11... Thereafter, the pickup / chuck rotation motor mounting plate 5 stored in the player main body 5
00 is rotated about the horizontal axis, and the chuck rotating mechanism 55 disposed at the tip of the pickup / chuck rotating motor mounting plate 500 is located below the central hole 12a of the selection disk 12. Further, the above-mentioned plate separation slide plate 5
As a result, the second sharpened portion 51b causes the plate 1 on which the selected disk 12 is mounted to move.
The disc 1 is lowered and the disc 12 is placed on the disc table 552 of the chuck rotating mechanism 55. The selected disc 12 is clamped by the chuck claw 553 of the chuck rotating mechanism 55 in the center hole 12a. The plate 11 moves downward from the selection disk 12, and the upper plate 11 is pushed upward to move away from the selection disk 12. And pick up /
The pickup 56 provided on the chuck rotation motor mounting plate 500 moves in the radial direction of the disk 12 and reads information on a predetermined position of the disk 12.

Next, each component will be described in detail.

FIG. 2 is a plan view of the plate 11. The plate 11 has a notch 11d having a shape corresponding to the rotation range of the pickup / chuck rotation motor mounting plate 500, a notch 11g having a fan shape, and guide holes 11e and 11f for ascending and descending guides. I'm done. Further, a pin 11a and a pin 11b are formed at a lower edge (right side in the disc player) of the drawing at an interval, and a pin 11a and a pin 11b are formed at an upper edge of the drawing (left side in the disc playing). Has a pin 11c. These pins 11a, 11b, 11c are operated by the plate separating slide plate 51 (511, 512). In addition, the projecting amounts of the pin portions 11a and the pins 11b are slightly different, so that each can receive the operating force of the plate separating slide plate 51 (511). In addition, pin 1
The projections 11h, 11h,
11h, 11h are formed.

FIG. 3 is a plan view showing the magazine 1 with its top cover removed. On the bottom plate 15 of the magazine 1, at a position corresponding to the fan-shaped notch 11 g, a disk removing means 14 is provided. The disc take-out means 14 includes a take-out lever 14a that presses the rear side of the disc 12 by rotation, and a spring 14b that urges the take-out lever 14a to the non-take-out side. A step portion for supporting the disk 12 is formed in an upright portion 15e at the rear of the bottom plate 15 (see FIGS. 1, 4, and 22). The top cover not shown
The magazine 11 moves up and down with the up and down movement of the plate 11, but in order to prevent the magazine 1 from moving up and down while the magazine 1 is detached from the player section 2, that is, to prevent the magazine 1 from being unraveled. , 15b. The separation restricting members 15a and 15b are rotatable in the direction of the arrow in the drawing on the shafts 152a and 152b, respectively.
a, 151b are located as shown in FIG.
The vertical movement of the upper lid is restricted. Then, when the magazine 1 is loaded into the player section 2, as shown in FIG. 6, the separation restricting members 15a and 15b rotate, and the restricting pieces 151
The disintegration restriction by a and 151b is released. This will be described later. Further, the magazine 1 has a parallel lift assisting means 13 for raising and lowering the upper lid in parallel so that the plate 11 is moved up and down while maintaining the parallel state.
Are provided on both sides.

FIGS. 4A and 4B are side views of the magazine as viewed from one side of the parallel lifting / lowering assisting means 13a.
FIG. 5 is a side view of the magazine as viewed from the other side of the parallel lifting assisting means 13b. FIG. 4B shows a plate separation state.

The side plate 134a of the parallel lifting / lowering assisting means 13a
Is provided on the side of the bottom plate 15 of the magazine 1,
33 a is provided on the side of the upper lid 16. Each of the side plates 133a and 134a has a guide hole 13 long in the horizontal direction.
6a and 137a are formed. The bottom plate 15 and the upper lid 16 are connected by a first connecting plate 131a and a second connecting plate 132a provided in a cross shape that rotates around a shaft 135a. Specifically, the first connecting plate 131a
Is connected to the side plate 133a, the other end is connected to the guide hole 137a of the side plate 134a, one end of the second connecting plate 132a is connected to the side plate 134a, and the other end is connected to the guide hole 136a of the side plate 133a. ing.

The side plate 134b of the parallel lifting / lowering assisting means 13b
Is provided on the side of the bottom plate 15 of the magazine 1,
33 b is provided on the side of the upper lid 16. Each of the side plates 133b and 134b has a guide hole 13 long in the horizontal direction.
6b and 137b are formed. The bottom plate 15 and the upper lid 16 are connected by a first connecting plate 131b and a second connecting plate 132b provided in a cross shape that rotates around a shaft 135b. Specifically, the first connecting plate 131b
Is connected to the side plate 133b, the other end is connected to the guide hole 137b of the side plate 134b, one end of the second connecting plate 132b is connected to the side plate 134b, and the other end is connected to the guide hole 136b of the side plate 133b. ing.

As a result, the above-mentioned looseness restricting member 15
a, In the state where the restriction on loosening by 15b is released,
When an upward force is applied to the upper lid 16, each connecting plate 131
a, 131b, 132a, and 132b are connected to the guide holes 136a, 136b, 137a, and 137, respectively.
Then, the upper lid 16 moves in parallel, and the upper lid 16 moves in parallel. The upper lid 16 has a guide cylindrical portion 16.
b, 16b are formed corresponding to the guide holes 11e, 11f, and the plate 11 is guided up and down by the guide cylindrical portions 16b, 16b.

FIG. 6 is a plan view showing a state in which the magazine 1 is loaded in the magazine accommodating space of the player section 2. FIG. 7 is a plan view mainly showing the player chassis 3 and the elevator mechanisms 4 disposed on both sides of the player chassis 3 with the magazine 1 and the player main body 5 removed.
On the back surface of the bottom plate 15 of the magazine 1, two grooves 15d and 15e are formed in the front-rear direction. When the magazine 1 is accommodated in the player section 2, the grooves 15d and 15e and the guide projections 3c and 3 formed on the player chassis 3 are formed.
c, 3c 'engage. A lock plate 6 for locking the magazine 1 is provided on the back side of the player chassis 3. The first projection 6a projecting into the accommodation space is guided by a guide hole 3e formed in the player chassis 3 and extending in the front-rear direction, and the second projection 6b also projecting into the accommodation space is formed by the guide projection 3c. , 3c (that is, a position corresponding to the groove 15d), and is guided by an L-shaped guide hole 3d which is long in the front-rear direction and turns rightward at the rear end side. The lock plate 6 is urged forward by a spring 6c. When the magazine 1 is loaded into the accommodation space, the first protrusion 6a is pushed at its rear end against the bias of the spring 6c, and the lock plate 6 moves rearward as shown in FIG. Then, the second protrusion 6b is inserted into the guide hole 3
Enter the right turn of d. The right-turned portion is located at a position corresponding to the locking groove 15d '(see FIG. 6) of the groove 15d of the magazine 1, and the second protrusion 6b enters the locking groove 15d' and locks the magazine 1. ing. The locked state of the magazine 1 is detected by a switch 100 pressed by the lock plate 6.

The upper cover 16 of the magazine 1 has the restriction pieces 151a, 15a of the above-mentioned looseness restriction members 15a, 15b.
Arc holes 16a, 16a corresponding to the rotation range of 1b are formed. The separation restricting members 15a and 15b have engaging pieces (not shown) that protrude toward the grooves 15d and 15e. Therefore, when the magazine 1 is loaded in the player accommodating space, the engagement pieces are pushed by the guide projections 3c 'and the front-side guide projections 3c, respectively, and the separation restriction members 15a and 15b rotate, As shown in FIG. 6, the restricting pieces 151a, 151b are located in the arc holes 16a, 16a so as not to lock the upper lid 16, and allow the upper lid 16 to move up and down.

In FIG. 6, four guide projections 5a projecting from the side surface of the player main body 5 are provided with a vertical guide groove 3b of the player chassis 3 and a step-like groove 41c of the elevating slide plate 41 of the elevator mechanism 4. Shows a state in which it is engaged. When the elevating slide plate 41 slides back and forth, the height of the player body 5 supporting the guide protrusion 5a changes in the step-like groove 41c.
Due to this change, the guide projection 5a moves in the vertical guide groove 3b, whereby the player main body 5 moves up and down.

FIG. 8A is a right side view of the player section 2, and FIG. 8B is a left side view. An elevating slide plate 41 of the elevator mechanism 4 is disposed on the side surface portion. Here, the reference numeral 411 is attached to the right elevating slide plate 41, and the left elevating slide plate 41 is attached.
Is denoted by reference numeral 412. Elevating slide plate 4
1 (411, 412) have guide holes 41a in the front-rear direction.
Is formed, and the ascending and descending slide plate 41 is guided and moved in the front-rear direction by the protrusions 3a protruding from the side surface of the player chassis 3. A rack 41b is formed on the upper edge of the elevating slide plate 411, and a predetermined gear in the gear group 42 meshes with the rack 1b.

The driving force of the driving motor 43 is
The lifting slide plate 411 is provided to the lifting slide plate 411 via the second unit 2 and moves back and forth. The forward / backward movement of the lifting / lowering slide plate 411 is transmitted to the other lifting / lowering slide plate 412 via the synchronous connection lever 44 shown in FIG. The synchronous connection lever 44 is configured to rotate horizontally about a shaft 44a.
Is moved forward, the elevating slide plate 412 is moved backward. Since the advancing directions of the two are opposite to each other, the step-like groove 41c is also used for the elevating slide plate 411.
And 412, the up and down directions are opposite. In FIG. 8, the manner in which the guide protrusion 5a changes in the vertical position is virtually shown in correspondence with each step of the step-like groove 41c. The player body 5 is moved up and down by the movement of the elevating slide plate 411 in the front-rear direction. The elevating state (which disc corresponds to which height) is formed on the elevating slide plate 411 at a predetermined interval in the front-rear direction. Slit 4
.. Can be known by detecting the photo sensors 11a with the photo sensor 102 (see FIG. 7). In addition, the elevating slide plate 41
1 moves forward to the foremost side, the elevating slide plate 41
The lock plate 6 is pushed by the action piece 1 (not shown), and the magazine 1 is ejected. Although the position of the elevating slide plate 411 is determined by the photo sensor 102 as described above, it is necessary to determine a reference point. The switch 101 shown in FIG. 7 is provided for this purpose, and is set to operate with the pressing piece 411b when the slide plate 411 is located at a position corresponding to between the third and fourth disks. . Therefore, after this operation, the slide plate 411 further moves, and the photo sensor 10
If the output of No. 2 is detected, it is understood that it is at the position corresponding to the fourth sheet. Depending on the moving direction of the slide plate, it may be the third sheet, but this can be found to be any position if the direction in which the slide plate is moved is determined in advance.

FIG. 9 is a plan view of the player main body 5.
A plate separating slide plate 51 is provided inside the housing side plate 52 of the player main body 5 so as to be slidable in the front-rear direction. The reference numeral 521 is assigned to the right housing side plate, the reference numeral 522 is assigned to the left housing side plate, the reference numeral 511 is assigned to the right plate separation slide plate, and the reference numeral 512 is assigned to the left plate separation slide plate. Is added. On the upper surface of the player body 5, a plate separating slide plate 51 is provided.
A drive plate mechanism 53 for synchronously driving the drive motors 1 and 512 is provided. The drive plate mechanism 53 includes a connection operation lever 531
And 532. The right end (operating end side) of the connection operating lever 532 is connected to the upper surface of the rear end side of the plate separation slide plate 511, and the plate separation slide plate 5
By the forward and backward movement of 11, the rotation is made around the left end fulcrum 532a. On the other hand, the left end (operating end side) of the connection operation lever 531 is connected to the upper surface of the rear end side of the plate separation slide 522, and is rotated around the right end fulcrum 531 a to rotate the plate separation slide plate 512.
To move back and forth.

The connection operation levers 531 and 532 are connected to each other by connection pins 53a penetrating long holes 531b and 532b formed in the center portions of the connection operation levers 531 and 532, respectively. The movement of the connection operation lever 532 is transmitted to the connection operation lever 531 via the connection pin 53a, and the movement of the connection operation lever 531 causes the plate separation slide plate 512 to move. The connection pin 53a is guided by a guide hole 53b formed in the upper surface of the player main body 5 in the front-rear direction. A rack 514 is formed on the outer surface of the plate separation slide plate 511. In the rack part 514,
A predetermined gear of the gear group 54b is meshed. The driving force of the drive motor 54a is applied to the plate separation slide plate 511 via the gear group 54b, and the plate separation slide plate 511 moves back and forth, and the other plate separation slide 512 also moves back and forth with this back and forth movement. Will move.

FIG. 10A is a right side view of the player main body 5, and FIG. 10B is a side view of the player from the right side to the left side. FIG. 11 is an explanatory view showing the relationship between the plate separating slide plate 51 (511, 512) and the projections 11a, 11b, 11c,... Of the plate 11. When the disc placed is selected, for convenience, a plate separation slide plate 51 that moves in the front-rear direction is fixedly shown,
The projection position of the plate 11 that does not move back and forth is shown as being changed. FIGS. 12A, 12B, and 12C show a state immediately before the separation of the disk placed on the third plate 11 from the bottom (the magazine 1 is loaded in the accommodation space). FIGS. 13 to 15 show the ascending and descending state of the plate 11 interlocked with the movement of the plate separating slide plate 51 performed following the state of FIG.

The plate separating slide plate 511 has plate separating inclined surfaces corresponding to the projections 11a and 11b of the plate 11. The inclined surface for plate separation corresponding to the projections 11a of the plate 11 is formed on the inner surface on the rear end side of the plate separation slide 511. The plate separating inclined surfaces corresponding to the respective protrusions 11a, 11b, ... will be described in order from the front side.

The upwardly inclined surface 511 of the first sharpened portion 51a
b, 511f, at the highest point, secure a space between the plate 11 on which the selected disk is mounted and the plate 11 below the selected disk to the extent that the pickup / chuck rotation motor mounting plate 500 is received (FIG. 13
(See (a), (b) and (c)).

The first following the up slopes 511b, 511f
The downwardly inclined surfaces 511c and 511g of FIG. 14 secure a space at the lowest point thereof such that the selection disk 12 is mounted on the chuck rotating mechanism 55 of the received pickup / chuck rotating motor mounting plate 500 (FIG. 14 (a)). )
(See (b) and (c)).

The second downward inclined surfaces 511d and 511h following the first downward inclined surfaces 511c and 511g are used to connect the plate 11 on which the selection disk 12 is mounted to the selection disk 12
(See FIGS. 15A and 15B).

The upwardly inclined surface 511 of the second sharp portion 51b
In steps e and 511i, the upper plate 11 on which the disk selected at the highest point is mounted is separated from the selected disk 12 (see FIGS. 15A and 15B).

Similarly, the plate separation slide plate 512 has a plate separation inclined surface corresponding to the projections 11c of the plate 11. The plate separating inclined surface will be described in order from the front side.
The upward inclined surface 512b in 1a secures a space enough to receive the pickup / chuck rotation motor mounting plate 500, and the first downward inclined surface 512c is provided for the chuck rotation mechanism 55 of the received pickup / chuck rotation motor mounting plate 500. A space for mounting the selected disk 12 is secured, and the second downward inclined surface 512d separates the plate 11 mounting the selected disk 12 from the selected disk 12, and ascends at the second sharp portion 51b. The inclined surface 512 e corresponds to the upper plate 1 of the selection disk 12.
1 is separated from the selected disk 12.

When the respective states of the plate separating slide plate 51 are arranged, the state shown in FIG. 12 is the vicinity of the lower side of the projections 11a, 11b, 11c of the plate on which the disk 12 having the first sharpened portion is selected. 13 (first state). In the state of FIG. 13, the plate 11 on which the selected disk 12 is mounted and all the plates 11 on the upper stage thereof are set by the first sharpened portion 51a.
14 is in a state of being raised most (second state), and the state of FIG.
1 and all the upper plates 11 are lowered slightly from the second state, and the selected disk 12 is placed on the disk table 552.
The protrusions 11a of the upper plate 11 on the plate 11 on which the selected disk 12 is mounted
15b is a state (third state) facing the lower side near the lower side of the plate 1 on which the selected disk 12 is mounted by the second sharpened portion 51b.
1 is lowered slightly from the third state to separate the plate 11 from the selected disk 12, and the upper plate 11 is raised above the third state (fourth state). is there.

In the vicinity of the plate separating slide plate 512, there is provided a switch (not shown) which is activated by the movement of the slide plate 512. This switch
The first to fourth states of the plate separation slide plate 512 are detected. When the second state is detected, the pickup / chuck rotation motor mounting plate 500 is rotated to the magazine side, and the third state is detected. Is detected, the clamping operation by the chuck pawl 553 is performed.

FIG. 16 is a plan view of the player main body 5 and shows a pickup / chuck rotation motor mounting plate 500.
FIG. 3 is a perspective view showing a portion of FIG. The front side of the housing of the player main body 5 is formed in a concave arc shape corresponding to the arc of the disk 12, and the pickup / chuck rotary motor mounting plate 500 is also concave in shape corresponding to the concave arc portion. It has an arc-shaped portion so that it fits completely in the housing. As described above, the player main body 5 is moved up and down by the elevator mechanism 4 in a state where the pickup / chuck rotation motor mounting plate 500 is completely set in the housing.

The pickup / chuck rotation motor mounting plate 500 is provided rotatably about a rotation axis 500a in a horizontal direction. When the plate 500 is rotated counterclockwise in the drawing, it comes out of the housing and is disposed at the tip end. The chuck rotating mechanism 55 is located below the center hole 12a of the disk 12. At the rear end of the pickup / chuck rotation motor mounting plate 500, a rack portion 500b is formed in an arc shape around the rotation shaft 500a. The gear group 57 of the rotating mechanism 57 is provided in the rack 500b.
The predetermined gear b is meshed. The gear group 57b rotates the pickup / chuck rotating motor mounting plate 500 by receiving a driving force from a driving motor 57a disposed in the housing.

18 and 19 are enlarged plan views of the pickup / chuck rotation motor mounting plate 500, respectively. FIG. 18 shows an unclamped state in the chuck rotating mechanism 55, and FIG. 19 shows a clamped state.
The pickup / chuck rotation motor mounting plate 500 includes:
The pickup 56, the pickup moving mechanism 58, the chuck rotating mechanism 55, and the chuck control mechanism 9 are mounted. The pickup moving mechanism 58 includes a screw shaft 58c having one end supported by a support member 58e.
, A driving motor 58a, and a gear group 58b for transmitting the driving force to the screw shaft 58c. The end face of the pickup 56 (the chuck rotating mechanism 5)
A first switch 56a is provided on the end face on the fifth side). The first switch 56a is turned on when it comes into contact with a projection 58f formed on the support member 58e. As shown in FIG. 18, the chuck control mechanism 9 controls the chuck rotation mechanism 5 to turn on the switch.
5 corresponds to an unclamped state, and the drive motor 58a is stopped by this ON.

When the chuck control mechanism 9 is pressed by the pressing protrusion 56b attached to the pickup 56, the chuck control mechanism 9 rotates about the shaft 9a in the direction A in FIG. Is performed. This unclamping state is maintained until the pickup / chuck rotating motor mounting plate 500 comes out of the housing and reaches the state shown in FIG.
At the stage of 4, a clamp state is set. An instruction to set the clamp state is given by a switch (not shown) in the plate separating slide plate 51 in the stage of FIG. 14 (third state).
This is performed when is detected. That is, by this detection,
The drive motor 58a moves the pickup 56 toward the outer periphery of the disk. By the movement of the pickup 56, as shown in FIG. 19, the chuck control mechanism 9 rotates in the direction B and enters the clamp state. Then, at a predetermined position when the chuck control mechanism 9 rotates in the direction B (corresponding to a position where the pickup 56 is retracted by approximately 2 mm from the clamped state), the second switch 91 is operated by the switch operating piece 9c. Is turned off. At the time when the second switch 91 is turned off, the pickup 56
(Table of Contents).

FIGS. 20 and 21 are longitudinal side views of the chuck rotating mechanism 55, respectively. FIG. 20 shows an unclamped state, and FIG. 21 shows a clamped state. Disk table 552 in chuck rotating mechanism 55
Is fitted on a rotation shaft 556a of a rotation motor 556, and is rotated by the rotation of the rotation shaft 556a. The chuck movable portion 551 is fitted on the cylindrical portion of the disk table 552 so as to be slidable in the vertical direction. A spring 554 is provided between the chuck movable portion 551 and the main body of the rotary motor 556 so as to urge the chuck movable portion 551 upward. The chuck movable portion 551 and the spring 554 rotate together with the disk table 552. Chuck movable part 551
A tapered flange whose upper surface is inclined downwards is formed on the outer peripheral portion of the chuck control mechanism 9.
18C (movement corresponding to the direction A in FIG. 18), the chuck movable portion 551 moves downward against the bias of the spring 554.

The chuck rotation mechanism 55 has chuck jaws 553 (three in total, which are provided in a substantially rectangular shape) (see FIGS. 18 and 19). Chuck claw 553
The rotary shaft 553a, which is formed on the base end side and has a horizontal axial direction, is supported by the disc table 552 to rotate vertically. The bent back surface portion of the chuck claw 553 is in contact with the chuck movable portion 551, and the chuck movable portion 551 is pushed downward by the action piece 9c (that is, by the moving force of the pickup moving mechanism 58). When the chuck movable portion 551 is moved in the direction D by its own weight in the direction D by using the pivot shaft portion 553a as a fulcrum, the claw tip is retracted (submerged). When moving upward at 554, the rotary shaft 553 is pushed by the
The claw is rotated in the direction C about the fulcrum so that the tip of the claw projects from the disk table 552. The rotation of the chuck claw 553 in the C direction is regulated by the stopper portion 553b formed on the chuck claw 553 abutting on a predetermined portion of the disk table 552.

As described above, since the chuck pawls 553 protrude and retract from the upper surface of the disk table 552 to clamp the disk 12, a rotatable driven portion for pressing the disk from above the disk 12 is unnecessary. I can do it. The force for unclamping by the chuck claw 553 is equal to the force of the existing pickup moving mechanism 5.
8, the structure can be simplified as compared with the case where a mechanism for separately providing a driving force for the unclamping and the clamping is provided.

FIG. 22 is a diagram showing the back surface side of the housing for accommodating the pickup / chuck rotation motor mounting plate 500. On the back side of the casing, the disc 12 is mounted at a position corresponding to the lower disc 12 selected by the plate separating slide plate 51. A vibration restricting member 59 is provided so as to be rotatable by a pin 592 so that it can be immersed in the vibration. Plate separation slide plate 5
On the lower surface of the eleventh, an emergence control mechanism 59a connected to the vibration regulating member 59 is provided. When the plate separating slide plate 511 shifts from the first state (see FIG. 12) to the second state (see FIG. 13), the movement control mechanism 59a causes the vibration regulating member 59 to protrude toward the magazine. On the other hand, when the plate separating slide plate 51 shifts from the second state to the first state, the vibration regulating member 5
9 is immersed in the housing.

More specifically, the emergence control mechanism 59a includes a shaft 59
b, one end side 59c is engaged with an L-shaped groove 511a formed in the plate separating slide plate 511, and the other end side 59d is a pin 59c of the vibration regulating member 59. It is connected to one end 591. Therefore, when the plate separating slide plate 511 moves in the X direction in the figure (the direction in which the plate separating operation is performed), the emergence control mechanism 59a rotates clockwise in the figure, and accordingly, the vibration regulating member 59 moves. It rotates counterclockwise and projects to the magazine side. The one end side 59c rides on the long groove portion of the L-shaped groove 511a by the clockwise rotation of the emergence control mechanism 59a, so that the protruding state of the vibration regulating member 59 is maintained.

The vibration regulating member 59 is formed with an arc-shaped concave groove corresponding to the arc shape and thickness of the peripheral edge of the disk 12, and as shown in FIG. The arcuate groove is fitted into the periphery of the lower disk 12 of the selection disk 12, and the upright portion 1 of the bottom plate 15 is formed.
Combined with the holding of the step 5e, the vibration of the disk 12 is regulated. On the other hand, the plate separating slide plate 511 returns to the Y direction, and the one end side 59c is in the L-shaped groove 511a.
Of the vibration regulating member 5 by the spring 593.
9 is accommodated in the housing. The spring 593 can be made unnecessary by forming the L-shaped groove 511a as shown by the dotted line in FIG.

Here, when a plate separating operation is performed to clamp the selected disk 12, the state shown in FIGS. 13 to 15 is adopted. With respect to the disk 12 located at the lower stage, there is no restriction on the upward movement. In this,
When such a disc player is used in a vehicle, the lower disc 12 may vibrate up and down due to vibration, and may make a rattling noise. Also, if the pickup / chuck rotation motor mounting plate 500 enters the disk 12 in a state where the lower disk 12 is lifted, the pickup / chuck rotation motor mounting plate 500 may hit the disk 12 and scratch the disk 12.

In this embodiment, the above-described vibration restricting member 59 is provided. As described above, the vibration restricting member 59 is moved from the first state (see FIG. 12) to the second state (FIG. 1).
3), by projecting toward the magazine side and fitting the arc-shaped groove into the peripheral edge of the lower disk 12, the rattling of the lower disk 12 can be prevented.

FIG. 23 is a view showing the stopper 60 for restricting the displacement of the pickup / chuck rotation motor mounting plate 500 at the reproduction position. The stopper 60 is formed with four concave portions 60a corresponding to four upper and lower reproduction positions of the pickup / chuck rotation motor mounting plate 500, respectively, and one end 60b of the stopper 60 is
And the other end 60c of the stopper 60 is screwed to the upper lid 7 of the player by a screw 8. And
Between the pickup / chuck rotation motor mounting plate 500 and the concave portion 60a, gaps are provided in the vertical direction and the center direction of the disk, which allow positional deviation of the pickup / chuck rotation motor mounting plate 500 during reproduction. This allows
Pickup / chuck rotation motor mounting plate 50 during playback
The positional deviation in the vertical direction of 0 and the center direction of the disc is kept within a predetermined range by the stopper 60.

[0046]

As described above, the disc player of the present invention has an effect that the displacement of the pickup plate at the time of reproduction can be restricted and the vibration of the disc can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an internal structure of a disc player according to an embodiment of the present invention.

FIG. 2 is a plan view showing a plate according to the embodiment of the present invention.

FIG. 3 is a plan view showing the magazine according to the embodiment of the present invention with the upper lid removed.

FIGS. 4A and 4B are side views showing a magazine according to the embodiment of the present invention, wherein FIG. 4A shows a plate non-separated state, and FIG. 4B shows a plate separated state.

FIG. 5 is another side view of the magazine according to the embodiment of the present invention.

FIG. 6 is a plan view showing a state where a magazine is loaded in a player unit according to the embodiment of the present invention.

FIG. 7 shows a player section according to the embodiment of the present invention.
It is the top view which showed and removed the player main-body part.

FIGS. 8A and 8B are side views of a player section according to an embodiment of the present invention.

FIG. 9 is a plan view of a player main body according to the embodiment of the present invention.

FIGS. 10A and 10B are side views showing the relationship between the player main body and the magazine according to the embodiment of the present invention.

FIGS. 11A and 11B are explanatory views showing the relationship between the plate separating slide plate and the projection of the plate according to the embodiment of the present invention.

FIG. 12 is an explanatory view showing a first state in which the first sharp portion of the plate separating slide plate according to the embodiment of the present invention is located near the lower side of the protrusion of the plate on which the selected disk is mounted; It is.

FIG. 13 is a view showing a second state in which the plate on which the selected disk is mounted and all the plates above the selected disk are most raised by the first sharp portion of the plate separating slide plate according to the embodiment of the present invention; FIG.

FIG. 14 is an explanatory view of the embodiment of the present invention, in which a plate on which a selected disk is mounted and all plates above the selected disk are slightly lowered from the second state;
It is explanatory drawing which shows the state.

FIG. 15 is a view showing a third state in which the plate on which the selected disk is mounted is slightly lowered from the third state by the second sharp portion of the plate separating slide plate according to the embodiment of the present invention; FIG.

FIG. 16 is a plan view showing a see-through view of a pickup / chuck rotation motor mounting plate provided in the player main body according to the embodiment of the present invention.

FIG. 17 is a plan view showing a state where the pickup / chuck rotation motor mounting plate is rotated to the magazine side in FIG. 16;

FIG. 18 is an enlarged plan view (disc unclamped state) of the pickup / chuck rotation motor mounting plate according to the embodiment of the present invention.

FIG. 19 is an enlarged plan view (disk clamp state) of the pickup / chuck rotation motor mounting plate according to the embodiment of the present invention.

FIG. 20 is a sectional view (disc unclamped state) of the chuck rotating mechanism according to the embodiment of the present invention;

FIG. 21 is a sectional view (disc clamp state) of the chuck rotating mechanism according to the embodiment of the present invention;

FIG. 22 (b) is a perspective view of the back surface side of the housing section that houses the pickup / chuck rotating motor mounting plate according to the embodiment of the present invention, seen from the top, and FIG. 22 (a).
2 is an enlarged view of a main part, and FIG. 2C is a cross-sectional view of the main part.

FIG. 23 is a view showing a stopper of a pickup / chuck rotation motor mounting plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magazine 2 Player part 3 Player chassis 4 Elevator mechanism 5 Player main body part 9 Chuck control mechanism 11 Plate 12 Disk 15 Bottom plate 16 Top lid 55 Chuck rotation mechanism 56 Pickup 58 Pickup movement mechanism 59 Vibration regulation member 60 Stopper 500 Pickup / chuck rotation motor mounting Plate 551 Chuck movable part 552 Disk table 553 Chuck claw

Claims (1)

[Claims] 1. A disc player which uses a magazine in which a plurality of discs are loaded one by one on a plate and selects and plays an arbitrary disc from the plurality of discs, wherein a disc catching mechanism and a pickup are mounted. A pickup arm pivotally supported movably, turning means for turning the pickup arm from a storage position to a reproduction position in parallel with a disk surface, and restricting a position change of the pickup arm at the reproduction position of the pickup arm. A disc player comprising a hit means.