JPH11167758A - Disk carrier device for disk reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a disk carrier device capable of preventing damage to a mechanism inside a disk even if the disk is pulled out during the carrying of the same by using a motor as a driving source. SOLUTION: A pushing-back member 13 and a connecting member 14 are connected with each other by a cam mechanism, the connecting member 14 and a pushing-in member 12 are elastically integrated by a spring 15, and the connecting member 14 and the pushing-in member 12 are set to follow the rotation of the pushing-back member 13. When a disk D is inserted from a disk inserting port 3, a driving means drives the pushing-back member 13, the pushing-in member 12 is rotated following the driving of the member 13 to push the outer periphery of the disk D, and the disk is carried to a reproducing section. When the disk D is pulled out during its carrying to the reproducing section, since the pushing-in member 12 is rotated against the spring 15, the disk D is safely pulled out, and no damage is given to the disk D or an internal mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk transport device of a disk player for transporting a disk by using a motor as a drive source.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. Hei 9-237455 discloses a disk transfer device of a disk player in which a disk is sandwiched between a disk guide plate and a transfer roller and the transfer roller is rotated to transfer the disk. I have.

[0003]

However, in such an apparatus, since the rollers are brought into contact with the recording surface of the disk, there is a risk that the recording surface of the disk may be damaged or stained. Further, while the disk is being pulled in by the power of the motor, the disk may be suddenly pulled out for some reason. In such a case, in a configuration in which the disk is transported by the transfer roller,
There is a risk that the mechanical force will prevail and the disk will not be pulled out, or that the internal mechanism will be damaged due to a strong pulling force.

Accordingly, an object of the present invention is to provide a disk player for transporting a disk using a motor as a drive source.
There is no danger of damaging or soiling the recording surface of the disc, and if the disc is to be pulled out while being transported to the playback unit by the power of the motor, the disc can be pulled out without damaging it. An object of the present invention is to provide a disk transport device that does not cause damage to a mechanism. It is another object of the present invention to solve these problems with a simple configuration.

[0005]

A push-back member having a separate center of rotation and a connecting member are connected via a cam mechanism, and the connecting member and the pushing member are elastically integrated via a spring. The cam mechanism has a structure in which a cam pin is provided on one of the push-back member and the connecting member and a spiral cam groove is provided on the other, and the cam pin moves along the cam groove, and the connecting member and the pushing member are rotated by the push-back member. To follow. Therefore, when inserting the disc from the disc insertion slot, when the push-back member is pushed on the outer periphery of the disc, the driving means drives the push-back member, and the pushing member rotates following the push-back member, pushing the outer periphery of the disc, and pushing the disc. To the playback unit. Also, when the disc is taken out, the driving means drives the push-back member, and the push-back member pushes the outer periphery of the disc, and pushes the disc back from the reproducing section toward the disc insertion slot.

In this configuration, the disc is transported by pushing the outer periphery of the disc with the pushing member and the push-back member, so that the recording surface of the disc is not damaged or stained. If the disc is to be pulled out during transport to the playback unit, the pushing member rotates against the spring, so that the disc can be safely pulled out. Do not damage. If the connecting member and the pushing member have a common rotation center, the configuration can be simplified. The configuration can also be simplified by rotatably mounting the pushing member on the connecting member. Further, when the connecting member and the pushing member are formed of a synthetic resin as one component connected by a bendable hinge portion, the number of components is reduced and the configuration is further simplified.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view showing the appearance of an on-vehicle disk player.
The playback unit 2 is mounted via the. At the front of the cabinet 1, there is a disc insertion slot 3. FIG. 2 is a plan view showing an initial state in which the disk D is inserted into the disk insertion slot 3 or a state in which the disk D is pushed back from the playback unit 4 in the playback unit 2 toward the disk insertion slot 3. FIG. 3 is a plan view showing a state in which the disc D is loaded in the reproducing unit 4. As shown in FIGS. 1 and 3, the upper part of the reproducing unit 2 is covered with a top plate 2a and a clamper support 5. FIG.
In the figure, the top plate 2a and the clamper support 5 are omitted.

FIGS. 4 and 5 show the reproduction unit 2 respectively.
3 is a left side view and a right side view showing the inside of FIG. In the center of the reproducing unit 2, a turntable 6, a clamper 7, a motor 8, a pickup 9 (see FIG. 2) and the like which constitute the reproducing unit 4 are arranged. That is, in the reproducing unit 4, the disc D placed on the turntable 6 is pressed by the clamper 7, and the turntable 6, the clamper 7, and the disc D are rotated integrally by the motor 8 while being picked up by the pickup 9. The recorded information is reproduced. The position of the reproduction unit 4 is set close to the disk insertion slot 3 so that reproduction can be performed at a position where the entire disk D is slightly inserted from the disk insertion slot 3 (see FIG. 2).

FIG. 6 and FIG. 7 are front views showing a part of the reproducing unit 2 cut away. Each figure shows the disk D
Shows a state in which is loaded, and an initial state in which the disc D is inserted. In the synthetic resin portion forming the front end portion of the reproducing unit 4, a passage 10 for the disc D that is continuous with the disc insertion slot 3 is formed. The left and right ends of the passage 10 are inclined surfaces 10a in the ascending direction on the bottom surface side and inclined surfaces 10b in the descending direction on the upper surface side.

As shown in FIGS. 2 and 8, a drive unit 11, a push-in member 12, a push-back member 13, a connecting member 14, and the like are mounted on the left side of the reproducing unit 2. The pushing member 12 is arranged near the disc insertion slot 3, and the pushing-back member 13 is arranged at the back of the pushing member 12. The pushing member 12 and the pushing-back member 13 are connected by a connecting member 14. The pushing member 12 and the connecting member 14 are elastically integrated by bringing the opposing portions 12a and 14a into contact with each other by a spring 15, and the opposing portions 12a and 14a are opposed to each other by the spring 15. Can be separated. Driving means 11
Is a rotating member 16 disposed further inside the push-back member 13.
And the one-way motor 1
The push-back member 13 is reciprocally driven using the drive source 8 as a drive source.

The pushing member 12 and the connecting member 14 are rotatably mounted on a common shaft 19a, and the pushing back member 13 is rotatably mounted on another shaft 19b. Push member 12
As shown in FIG. 9, a disk pressing portion 20 and a first disk receiving portion 21a each having a V-shaped concave shape as viewed from the side are formed at each rotating end of the push-back member 13. As shown in FIG. 8, the push-back member 13 is provided with another disk receiving portion, that is, a second disk receiving portion 21b having a V-shaped recess between the center of rotation and the first disk receiving portion 21a. I have.
When the disc D is not inserted, the pushing member 12
Is in the receiving position for receiving the insertion of the disc D,
The disc pressing portion 20 is located near the left end of the disc insertion slot 3, and the push-back member 13 is at a standby position where the outer periphery of the disc D inserted from the disc insertion slot 3 is brought into contact with the first and second discs. The receiving portions 21a and 21b are located above the turntable 6 (see FIGS. 8 and 1).
0).

As shown in FIG. 8, the push-back member 13 has a spiral cam groove 22 around the center of rotation.
The cam pin 23 of the connecting member 14 is inserted therein, and the cam groove 22 and the cam pin 23 constitute a cam mechanism 24. An inclined portion 22 is provided at the end near the center of rotation of the cam groove 22.
a is formed. In a state where the disc D is not inserted, the cam pin 23 is located in the cam groove 22 in a position near the terminal end of the cam groove 22 away from the rotation center of the push-back member 13 as shown in FIG. However, when the disc D is inserted and the push-back member 13 moves toward the back of the reproducing unit 2, the cam pin 23 is moved to the cam groove 22 as shown in FIGS.
The connection member 14 is moved toward the other end, and the connection member 14 is rotated following the push-back member 13. When the cam pin 23 moves to the inclined portion 22a as shown in FIG. 13, the connecting member 14 is slightly returned in the opposite direction. When the connecting member 14 rotates about the shaft 19a as a fulcrum, the pushing member 12 also
And rotate together.

Reference numeral 25 shown in FIG. 2 denotes a disk guide integrally formed on the right side inside the reproduction unit 2 with a synthetic resin portion constituting the front end of the reproduction unit 2. The transport trajectory of the disk D is set by being in contact therewith. As shown in FIG. 8, the push-back member 13 has a gear portion 27, a contact portion 28, and a spiral cam 29 around the center of rotation. The rotating member 16 is shown in FIG.
As shown in FIG. 4, the lower half is a spur gear 30, and the upper half is a partial gear 31 having teeth only in an angle range of about 100 degrees.
The rotational force of the motor 18 is transmitted to the spur gear 30 via the worm gear 18a, the worm wheel 32, and the first and second reduction gears 33a and 33b attached to the motor shaft. The partial gear 31 can be selectively meshed with the idler gear 17.
3 always meshes with the gear portion 27. The worm wheel 32 and the first and second reduction gears 33a and 33b together with the rotating member 16 and the idler gear 17 constitute the driving means 11.

As shown in FIG. 14, a pressing member 35 having a clamper control cam 34 is provided on the upper surface of the rotating member 16 so as to protrude therefrom. The clamper control cam 34 is formed by recessing a part of the upper surface of the pressing body 35. Further, first and second square holes 36a and 36b are formed through the rotating member 16. The pressing body 35 has a pressing portion 37 that matches the radial direction of the rotating member 16, and a first circular surface 38 and a second circular surface 39 that are successively connected to the pressing portion 37. When the disc D is not inserted, the contact portion 28 of the push-back member 13
Is out of the rotation trajectory of the pressing portion 37, but when the push-back member 13 is pressed by the disk D and rotates, the contact portion 28 enters the rotation trajectory of the pressing portion 37 as shown in FIG.

When the rotating member 16 rotates clockwise in this state, the pressing portion 37 pushes the contact portion 28 of the push-back member 13 and pushes the push-back member 13 toward the back of the reproduction unit 2, ie, in the counterclockwise direction. To rotate. When the rotation of the rotating member 16 advances, the pressing portion 37 comes off the contact portion 28, but this time, as shown in FIG. 12, the first circular surface 38 contacts the contact portion 28, and during that time, the push-back member 13 is kept at a fixed position. Will be retained. When the rotation of the rotating member 16 further advances and the contact point with the contact portion 28 shifts from the first circular surface 38 to the second circular surface 39 as shown in FIG.
The push-back member 13 is again pushed toward the back, and the second arc surface 39 is pressed.
While the is in contact with the contact portion 28, the push-back member 13 is held at a fixed position.

As shown in FIG. 8, below the push-back member 13, a holding member 40 is rotatably mounted via a shaft 40a. The holding member 40 has a pressing pin 40 b at a rotating end, and the pressing pin 40 b is constantly pressed against the spiral cam 29 of the push-back member 13 by a spring 41. On the other hand, on the outer peripheral surface of the spiral cam 29, as shown in FIG. 15, an engaging portion 29a which abuts on the pressing pin 40b and locks the push-back member 13 at the clockwise rotation end position. In the clockwise direction, a first spiral surface 29b that gradually increases the distance from the rotation center, a second spiral surface 29c that gradually reduces the distance from the rotation center, and the second spiral surface 29
An arc surface 29e separated from c by a step 29d is formed continuously.

When the pressing pin 40b is pressed against the area of the first spiral surface 29b, the pressing force acts to rotate the push-back member 13 clockwise. Before the disk is inserted, as shown in FIG.
a comes into contact with the pressing pin 40b, the rotation of the push-back member 13 in the clockwise direction is prohibited, and the push-back member 13
0b is received by the locking portion 29a and is held at the initial position.

However, when the disc D is inserted from the disc insertion slot 3, the push-back member 13 is pushed by the disc D and pushes back the push pin 40b with the first spiral surface 29b as shown in FIG. While rotating counterclockwise. When the contact point with the pressing pin 40b is turned from the first spiral surface 29b to the second spiral surface 29c, the pressing force of the pressing pin 40b against the second spiral surface 29c as shown in FIG.
Acts to rotate the push-back member 13 counterclockwise. When the contact point with the pressing pin 40b moves from the second spiral surface 29c to the arc surface 29e as shown in FIG. 15E over the step 29d in FIG. 15D, the pressing force of the pressing pin 40b is reduced by the pressing member 13. In any direction.

As shown in FIG. 16, a first switch 42a is arranged below the push-back member 13, and a second switch 42b is arranged below the rotating member 16. Note that FIG.
Reference numeral 42 denotes a printed circuit board. In addition, although not shown in the drawing, an eject switch is provided which is activated by a disk ejection operation. These switches are
Each is for controlling the one-way motor 18, and the first switch 42 a is connected to the spiral cam 2 of the push-back member 13.
9 to be turned on, and the second switch 42b
Alternatively, the rotary member 16 is off when it is in the second square holes 36a, 36b, and when it comes off from any of the square holes 36a, 36b.
It is pushed on by the bottom of and turned on.

At the front end of the reproducing unit 2, an elastic clamping mechanism 43 is provided as shown in FIGS. 2, 3, 6, 7, and 9. The elastic holding mechanism 43 includes a pair of elastic pressing pieces 44, 44 symmetrically arranged on the left and right above the passage 10, and auxiliary springs 44 a, 44 a (44 a) for applying a downward elastic force to each of the pressing pieces 44, 44. 17) and inclined surfaces 10a, 10a on the bottom side of the passage 10. The pair of elastic pressing pieces 44 are integrally formed with a synthetic resin portion constituting the front end portion of the reproducing unit 2. As shown in FIG. 17, below the distal ends of the elastic holding pieces 44, 44,
Recesses 45, 45 in which a part of the inclined surfaces 10a, 10a is recessed
(Only the left concave portion 45 is shown).
The amount of flexure of 44 is made large.

A pair of elastic pressing pieces 44, 44 are located in the passage 10 of the disk, and each lower surface is inclined with respect to the surface of the disk D. When the disc D is inserted from the disc insertion slot 3, the lower surfaces of the elastic pressing pieces 44, 44 are pushed up by the peripheral edge of the disk D, and the elastic pressing pieces 44, 44 and the inclined surfaces 10a, 10a are separated from each other. Let in between. When the disc D reaches the reproduction position, as shown in FIG.
a and 10a.

As shown in FIG. 2, the elastic holding mechanism 43 prevents the disc D from being ejected from the disc insertion slot 3 to the outside when the disc D is pushed back from the reproducing section 4 toward the disc insertion slot 3 by the transport means 11. , For elastically holding a portion outside the recording area of the disk D. That is,
It is desired that the push-back amount of the disk D by the push-back member 13 be set as large as possible in order to make it easy to take out by hand. The push-back member 13 is moved to a position where at least a part of the center hole of the disk D is exposed from the disk insertion slot 3.
, The inner portion of the recording area can be easily taken out by grasping it from above and below with a finger. As shown in FIG. 2, when the center hole of the disk D is pushed back to a position where it is entirely exposed from the disk insertion slot 3, a finger can be inserted into the center hole and the disk D can be more easily taken out.

There are restrictions on the installation position of the elastic clamping mechanism 43. The disc D can be clamped at the position pushed back by the transport means 11, and is set at a position where it does not contact the disc being reproduced and does not contact the recording area of the disc D even when the disc is transported. There is a need. Accordingly, if the lower surfaces of the elastic pressing pieces 44, 44 are inclined with respect to the surface of the disk D, and the peripheral edge of the disk D pushed back by the transport means is pressed by the lower surface, the elastic pressing pieces 44, 44 can be pressed. The selection range of the installation positions of the 44 is expanded, and the degree of freedom in design is increased.

As shown in FIGS. 2 to 7, a lower guide piece 46 is provided between the disc insertion slot 3 and the turntable 6 on the bottom side of the passage 10 of the disc D.
A pair of left and right upper guide pieces 47 is provided between the disc insertion slot 3 and the turntable 6. Then, the disc D inserted from the disc insertion slot 3 is
The space is guided between the turntable 6 and the clamper 7 through the space between the lower guide piece 46 and the upper guide pieces 47, 47.

The clamper support 5 is mounted on the innermost part of the reproduction unit 2 via a horizontal shaft 48 as shown in FIGS. By rotating the clamper support 5 up and down, the clamper 7 can be moved up and down. The clamper support 5 has a cam contact portion 49 extending downward.
The contact portion 49 is always in contact with the upper surface of the rotating member 16 by a pair of springs 50, 50 shown in FIG. Then, when the cam contact portion 49 comes into contact with the clamper control cam 34 with the rotation of the rotating member 16, the clamper support 5 rotates downward to lower the clamper 7, and the clamper 7 Hold down disk D. Thus, the turntable 6 can be rotated, and information can be reproduced by the pickup 9.

As shown in FIG. 18, the turntable 6 has a boss 51 at the center, and the shaft of the motor 8 is pressed into the center hole of the boss 51, and a plurality of detents are provided around the boss 51. It has a projection 52, and further has a disk mounting surface 53 on the outer periphery of the upper surface. The boss portion 51 and the detent protrusion 52
It does not protrude above the disk mounting surface 53. Therefore, the disc D can be conveyed from the disc insertion slot 3 to the reproducing section 4 horizontally without being hindered by the boss portion 51 and the rotation preventing projection 52 at the height of the disc mounting surface 53. After the disk D is transported above the turntable 6, the disk D can be held on the disk mounting surface 53 only by lowering the clamper 7.

On the other hand, the clamper 7 is
A flange portion 54 for holding the upper disk D;
And an annular protruding portion 55 fitted to the outer periphery thereof. Annular protrusion 5
5 is provided with a plurality of small recesses 56 into which the plurality of detent protrusions 52 are fitted. The center of the turntable 6 and the clamper 7 are aligned with the outer periphery of the boss 51 and the annular protrusion 5.
The rotation of the turntable 6 and the clamper 7 is stopped by fitting the rotation preventing projection 52 and the small recess 56, and the outer circumference of the annular projection 55 is formed in the center hole of the disk D. To the turntable 6,
The clamper 7 and the disc D are aligned with each other.

As shown in FIG. 2, a stopper 57 is mounted on the right side inside the reproducing unit 2 so as to be horizontally rotatable about a shaft 58 as a fulcrum. This stopper 57 is, as shown in FIG.
One end has a V-shaped concave disk receiving portion 59, and the other end has an engaging pin 60, and a torsion spring 61 applies a counterclockwise rotating power. The stopper 57 further has a downward blocking portion 62 projecting upward between the disk receiving portion 59 and the rotation center. This descent prevention part 62
Is provided with a downwardly inclined surface 63.

As shown in FIG. 5, the clamper support 5 has a leg 64 extending downward on one side. When the stopper 57 is at the position shown in FIG. 2, as shown in FIG.
The descent prevention part 62 is located below the leg part 64, and inhibits downward rotation of the clamper support 5. However, when the disk D is loaded into the reproducing unit 4, the disk receiving unit 59
Is pressed against the outer periphery of the disk D, the stopper 57 rotates clockwise, and as shown in FIG.
Will be located below. Therefore, the clamper support 5 can be pivoted downward, and when the clamper support 5 pivots downward, the leg 64 contacts the downwardly inclined surface 63 and the stopper 57 is further moved clockwise. Rotate, FIG. 20
As shown in (c), the disk receiving portion 59 is separated from the outer periphery of the disk D.

As shown in FIGS. 2 and 21, a slide plate 65 is mounted at a position near the disk insertion slot 3 of the reproduction unit 2 so as to be movable in the left-right direction. This slide plate 6
5 has a rack 66 on the upper surface and is always pulled leftward by a spring 67. A double insertion prohibiting member 68 is provided between the slide plate 65 and the disc insertion slot 3 by a shaft 69.
Is mounted via. The member 68 has a gear portion 70 that meshes with the rack 66. When the slide plate 65 moves rightward, it rotates substantially 90 degrees, and stands up in front of the disk passage 10 as shown in FIG. Disc insertion slot 3
The insertion of the disc D from the disc is prohibited. As shown in FIG. 2, the stopper 57 and the slide plate 65 are connected to the intermediate member 7.
1. The intermediate member 71 is horizontally rotatable about a shaft 72, and has an elongated hole 7 formed at one end.
3, the engaging pin 60 of the stopper 57 is inserted, and the other end is rotatably connected to the slide plate 65. Engaging pin 6
0 is always the long hole 7 due to the elastic force of the spring 67.
3 is held at the right end.

In the above disk player, the transport of the disk D is performed as follows. Before the disc is inserted, the holding member 40 holds the push-back member 13 at the position shown in FIG. 8, and the first and second disc receiving portions 21a and 21b of the push-back member 13 are located above the turntable 6. I have. At this time, the cam pin 23 of the connecting member 14 is located at the end of the cam groove 22 far from the center of rotation, and the disc pressing portion 20 of the pushing member 12 is located at the left end of the disc insertion slot 3. In addition, the first switch 42a
As shown in FIG. 5A, the push-back member 13 is pushed by the spiral cam 29 and turned on, and the second switch 42b is located in the first square hole 36a of the rotating member 16 and is turned off. The one-way motor 18 is stopped.

Therefore, the disc D is inserted through the disc insertion slot 3.
Is inserted, the peripheral edge of the disk D passes through the disk pressing portion 20 of the pressing member 12, and enters between the elastic pressing pieces 44, 44 and the inclined surfaces 10a, 10a as shown in FIG.
As shown in FIG. 2, after the leading end of the disc peripheral edge contacts the first disc receiving portion 21 a of the push-back member 13, the disc D is used to push the push-back member 13 in the forward direction (toward the back of the reproduction unit 2). Become. With the rotation of the push-back member 13, the cam pin 23 of the connecting member 14 moves in the cam groove 22, and the interlocking member 14 and the push member 12 follow the push-back member 13, and the disc pressing portion 20 of the push member 12 Is disk D
Into the position to push the outer circumference of.

As the push-back member 13 rotates, the disk D
Comes into contact with the second disk receiving portion 21 b of the push-back member 13, but the first disk receiving portion 2
1a is separated from the outer periphery of the disk D as shown in FIG. 11, and the disk D pushes only the second disk receiving portion 21b. When the push-back member 13 rotates to the position shown in FIG. 11 and the contact portion 28 enters the rotation path of the pressing portion 37, the first switch 42a is released from the spiral cam 29 as shown in FIG. Then, the one-way motor 18 is activated (position a in FIG. 23).

The rotating member 16 starts rotating clockwise by receiving the rotating force of the motor 18, and the pressing portion 37
8 to rotate the push-back member 13 counterclockwise.
The connecting member 14 and the pushing member 12 follow the push-back member 13 and rotate counterclockwise, and the disc D is pushed by the disc pressing portion 20 of the pushing member 12. At this time, the spring 15 merely elastically integrates the connecting member 14 and the pushing member 12. Therefore,
The elastic force of the spring 15 is applied to the cam groove 22 and the cam pin 23.
Does not affect the engagement relationship with the one-way motor 18 or exerts a load on the one-way motor 18, and the rotation of the push-back member 13, the connecting member 14, and the pushing member 12 is performed smoothly.

When the disk D is pulled in by the power of the motor 18 and the disk D is pulled out in a hurry for some reason, the mechanical power is superior and the disk D is not pulled out or is pulled out. If the power is strong and damages the internal mechanism, it will not work properly. In this respect, in the disc player shown here, the pushing member 12 and the connecting member 14 are elastically integrated via the spring 15. Therefore, when the drive unit 11 attempts to pull out the disk D being conveyed to the reproducing unit 4, the pushing member 12 is pushed to the outer periphery of the disk D,
As shown in FIG. 24, while rotating the spring 15 in a direction away from the connecting member 14 while stretching, the disk D can be safely pulled out, and there is no danger of damaging the internal mechanism. Further, unless the disc D is loaded at the reproducing position, the lowering of the clamper 7 is prohibited by the stopper 57, so that the clamper 7 is lowered with the disc D inserted halfway, making it difficult to remove the disc D. There is no fear of becoming.

Immediately after the one-way motor 18 is started, the first square hole 36a comes off the second switch 42b, and the second switch 4b
2b is pressed by the bottom surface of the rotating member 16 and turned on, but the one-way motor 18 continues to rotate (position b in FIG. 23). The pressing pin 40b of the holding member 40 shifts from the first spiral surface 29b of the spiral cam 29 to the second spiral surface 29c, and applies a turning force to the push-back member 13 in the counterclockwise direction. When the disk D comes to a position concentric with the turntable 6, as shown in FIG. 12, the pressing portion 37 of the rotating member 16 is disengaged from the contact portion 28 of the push-back member 13, and the first circular surface 38 is contacted. 28, and the rotation of the push-back member 13 is
Stop once. At this time, the pressing pin 40b of the holding member 40 is also positioned at the step 29d of the spiral cam 29, and does not apply a rotating power to the push-back member 13. Also, the connecting member 14
The cam pin 23 in the cam groove 22 of the push-back member 13
It is located at the end near the center of rotation.

When the disk D reaches a position where it can be held on the turntable 6, the disk receiving portion 59 of the stopper 57 is pushed on the outer periphery of the disk D. As a result, the lowering prevention portion 62 of the stopper 57 is displaced from the position below the leg portion 64, and the downward slope 63 is replaced by the lowering portion 63 instead of the lowering prevention portion 62.
Will be located below. As shown in FIG. 25, the disc D has a disc pressing portion 20 of the pushing member 12,
It is held at the three points of the second disk receiving portion 21 b of the push-back member 13 and the disk receiving portion 59 of the stopper 57.

While the rotation of the push-back member 13 is stopped while the first arcuate surface 38 is in contact with the contact portion 28, the rotating member 16 continues to rotate during that time, and the cam of the clamper support 5 is rotated. The contact portion 49 comes into contact with the clamper control cam 34 of the rotating member 16. As a result, the clamper support 5 rotates downward, the clamper 7 descends, and the flange 54 presses the disk D on the turntable 6. When the clamper support 5 rotates downward, the leg portion 64 comes into contact with the downward inclined surface 63, and separates the disk receiving portion 59 of the stopper 57 from the outer periphery of the disk D as shown in FIG.
The rotation of the one-way motor 18 further advances, and the contact point with the contact portion 28 moves from the first arc portion 38 of the rotating member 16 to the second arc portion 3.
At the time of shifting to 9, the push-back member 13 is slightly rotated again in the counterclockwise direction.

Accordingly, as shown in FIG.
26 moves to the inclined portion 22a of the cam groove 22, the pushing member 12 slightly rotates clockwise, and eventually, as shown in FIG. 26, the disk receiving portion 59 of the stopper 57.
Subsequently, the disc pressing portion 20 of the pushing member 12 and the second disc receiving portion 21b of the pushing back member 13 also separate from the outer periphery of the disc D. When the cam pin 23 moves in the cam groove 22, the elastic force of the spring 15 also
There is no influence on the engagement relationship between the cam pin 23 and the cam pin 23 or a load on the one-way motor 18. By the way, when the clamper support 5 is rotated downward and the disk receiving portion 59 is separated from the outer periphery of the disk D by the leg portion 64,
The rotation of the stopper 57 causes the engagement pin 60 to move the intermediate member 7.
One of the long holes 73 is moved, and the other end of the long hole 73 is pushed. As a result, the intermediate member 71 rotates clockwise, the slide plate 65 moves rightward against the spring 67, and the double insertion prohibiting member 68 is erected as shown in FIG.

When the second square hole 36b of the rotating member 16 comes to the position of the second switch 42b, the second switch 42b is released from the rotating member 16 and turned off, thereby stopping the one-way motor 18 ( Position c in FIG. 23). Subsequently, the motor 8 of the reproducing unit 4 is activated to turn the turntable 6,
The clamper 7 and the disk D are integrally rotated and driven, and the pickup 9 is operated to reproduce the information recorded on the disk D. If another disc is accidentally inserted during such a playback operation, there is a danger that the disc being inserted may be damaged by contacting the disc that is rotating internally or the internal mechanism may be damaged. However, in this respect, in the disc player shown here, during the reproducing operation, the double insertion prohibiting member 68 closes the passage 10 of the disc, so that there is no possibility that another disc is inserted by mistake. Thus, damage to the disk and internal mechanisms can be prevented beforehand.

Next, when the reproducing operation is stopped and the disc is removed, the eject switch (not shown) is turned on, and the one-way motor 18 is started again (FIG. 23).
D position). By restarting the one-way motor 18, first, the clamper control cam 34 comes off from below the cam contact portion 49,
The clamper support 5 rotates upward to raise the clamper 7. At this time, the stopper 57 is released from the leg portion 64, returns to the initial position by the torsion spring 61, and brings the disk receiving portion 59 of the stopper 57 into contact with the outer periphery of the disk D. Further, the slide plate 65 is returned by the spring 67, and the double insertion prohibition member 68 is rotated below the disc passage 10.

Immediately after the one-way motor 18 is restarted, the second square hole 36b of the rotating member 16 is disengaged from the second switch 42b, and the second switch 42b is turned on by the rotating member 16, but the motor 18 rotates. Continue (position e in FIG. 23).
The partial gear 31 of the rotating member 16 is the idler gear 1
7 meshes. The idler gear 17 always keeps the push-back member 1
3, the rotational force of the motor 18 is transmitted to the gear portion 27 via the partial gear 31 and the idler gear 17, the push-back member 13 rotates clockwise, and the second disk The receiving portion 21b is brought into contact with the outer periphery of the disk D. At the same time, the cam pin 23 of the connecting member 14 is disengaged from the inclined portion 22a, and the pushing member 12 is slightly rotated in the counterclockwise direction.
0 also contacts the outer periphery of the disk D.

In this state, as the rotation of the push-back member 13 in the clockwise direction advances, as shown in FIG. 27, the disc D is transferred from the reproducing section 4 to the disc insertion port 3 by the second disc receiving section 21b.
Back, and then the first disk receiving portion 21a
The disc D is pushed back in place of the second disc receiving portion 21b. When the spiral cam 29 of the push-back member 13 comes above the first switch 42a again, the switch 42a is turned on (position f in FIG. 23). When the first disc receiving portion 21a of the push-back member 13 has pushed back the disc D to a position where all the center holes are exposed from the disc insertion slot 3, the cam pins 23 of the connecting member 14 rotate in the cam grooves 22. After moving from the end near the center to the end far from the center, the disc pressing portion 20 of the pushing member 12 returns to a position near the left end of the disc insertion slot 3.

Then, the first square hole 36a of the rotating member 16 is again positioned above the second switch 42b and the switch 42b is turned off, thereby stopping the one-way motor 18 (g position in FIG. 23). . The disk D pushed back by the push-back member 13 is elastically sandwiched between the elastic pressing pieces 44, 44 and the inclined surface 10a. There is no risk of jumping or falling. Then, the disc D can be easily taken out by putting a finger in the center hole.

The present invention is not limited to the above embodiment. For example, in the above embodiment, the cam mechanism 24
A spiral cam groove 22 provided in the push-back member 13,
Although the cam pins 23 are provided on the connecting member 14, the cam pins may be provided on the push-back member 13 side and the cam grooves may be provided on the connecting member 14 side. The cam groove does not necessarily have to be spiral, and when the push-back member 13 rotates, the cam pin moves along the cam groove and the connecting member 14 follows the push-back member 13. good. In the above-described embodiment, the pushing member 12 and the connecting member 14 are mounted on the common shaft 19a. However, the pushing member 12 may be rotatably mounted on the connecting member 14. Even in this case, the configuration can be simplified. Further, the pushing member 12 and the connecting member 14 can be formed of synthetic resin as one component connected by a bendable hinge portion. In this case, the number of parts is reduced and the configuration is further simplified.

[0046]

As described above, according to the present invention, the disk is conveyed by pushing the outer periphery of the disk with the push-in member and the push-back member, so that the recording surface of the disk is damaged or stained during the conveyance. There is no fear. Further, when the disc inserted from the disc insertion slot is to be pulled out during the transportation to the reproducing unit, the pushing member rotates against the spring, and the disc can be safely pulled out. Therefore, there is no risk of damaging the disk or the internal mechanism.

Further, the configuration can be simplified by making the center of rotation of the connecting member and the pushing member common. The configuration can be similarly simplified by rotatably mounting the pushing member on the connecting member. Furthermore, if the connecting member and the pushing member are connected by a bendable hinge and integrally formed of synthetic resin, the connecting member and the pushing member can be manufactured as one part, so that the number of parts is reduced and the configuration is further simplified. Can be

[Brief description of the drawings]

FIG. 1 is a schematic external view of a disk player according to an embodiment of the present invention.

FIG. 2 is a plan view showing the inside of a reproducing unit of the reproducing machine.

FIG. 3 is a plan view of a reproduction unit.

FIG. 4 is a left side view showing the inside of the reproducing unit.

FIG. 5 is a right side view of the same.

FIG. 6 is a front view showing a part of the reproduction unit in cross section.

FIG. 7 is a front view showing the disc loaded state;

FIG. 8 is a plan view of a transfer device.

FIG. 9 is a perspective view of an elastic clamping mechanism.

FIG. 10 is a perspective view showing a relationship between a push-back member and a turntable.

FIG. 11 is a plan view of a transfer device.

FIG. 12 is a plan view of a transfer device.

FIG. 13 is a plan view of a transfer device.

FIG. 14 is a perspective view of a rotating member.

FIG. 15 is a plan view showing a relationship between a push-back member and a holding member.

FIG. 16 is a side view showing the relationship between a rotating member, a push-back member, and a switch.

FIG. 17 is a partial perspective view of an elastic clamping mechanism.

FIG. 18 is a sectional view showing a relationship between a turntable and a clamper.

FIG. 19 is a perspective view of a stopper.

FIG. 20 is a front view showing the relationship between the stopper and the clamper support.

FIG. 21 is a front view showing the relationship between a slide plate and a double insertion prohibition member.

FIG. 22 is a front view showing the relationship between the slide plate and the double insertion prohibition member.

FIG. 23 is an explanatory diagram of the start and stop timings of the one-way motor.

FIG. 24 is a plan view showing a state in which the disk is removed during the transportation.

FIG. 25 is a plan view showing a relationship between a pushing member, a pushing back member, and a stopper.

FIG. 26 is a plan view showing a relationship between a pushing member, a pushing back member, and a stopper.

FIG. 27 is a plan view showing a relationship among a rotating member, an idler gear, a pushing member, and a pushing back member.

[Explanation of symbols]

 D Disk (Recording Medium) 3 Disk Insertion Port 4 Playback Unit 11 Drive Unit 12 Pushing Member 13 Pushback Member 14 Connecting Member 15 Spring 18 One-way Motor 19a Shaft 22 Cam Groove 23 Cam Pin 24 Cam Mechanism 25 Disk Guide

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Shigeru Akaya 8-19-20 Fukasawa, Setagaya-ku, Tokyo Tana Shin Electric Co., Ltd. (72) Inventor Kunio Kido 8-19-20 Fukasawa, Setagaya-ku, Tokyo Tana Shin Electric Co., Ltd.

Claims (4)

[Claims] 1. A standby position which is mounted on one side of a path of a disk (D) and in which an outer periphery of a disk inserted from a disk insertion slot (3) is brought into contact with the disk, and is slightly away from a disk being reproduced. A push-back member (13) that is rotatable between a retracted position and a push-back member that is driven toward the retracted position when the push-back member is pressed by the inserted disc; Driving means (11) including a motor (18) for driving the push-back member toward the standby position when the operation is performed.
A connecting member (14) mounted on the same side as the push-back member with a different rotation center from the push-back member; and a cam pin (23) provided on one of the push-back member and the connecting member. A cam mechanism (24) that is movably inserted into a cam groove (22) provided on the other side so that the connecting member follows the push-back member; and a spring ( 15) The push-in member is elastically integrated with the connecting member through the push-in member, and when the push-back member rotates from the standby position to the retracted position, the disk is moved from the receiving position for receiving the insertion of the disk to the reproducing section (4). A pushing member (12) for pushing the outer periphery of the disk to the position, and a disk guide (2) for setting the transport trajectory of the disk by bringing the outer periphery of the disk into contact with the other side of the path of the disk.
5) A disk transport device for a disk player, comprising: 2. The rotation center (19) of the connecting member and the pushing member.
2. The disk transport device for a disk player according to claim 1, wherein a) is common. 3. The disk transport device for a disk player according to claim 1, wherein the pushing member is rotatably mounted on the connecting member. 4. A disk transport device for a disk player according to claim 1, wherein the connecting member and the pushing member are formed of a synthetic resin as one component connected by a bendable hinge portion.