JP3460767B2 - Disc changer rattling prevention device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc changer in which any one of a plurality of discs is selected and driven, and more particularly, to any one of a disc mounting portion in which a plurality of discs are mounted and a disc holding portion. The present invention relates to a rattling prevention device capable of preventing the movable part of the device from rattling in a disk drive state.

[0002]

2. Description of the Related Art FIG. 6 is a schematic view of the structure of a conventional disk changer in which the disk mounting portion is a movable portion, and is of the same type as that disclosed in, for example, Japanese Patent Laid-Open No. 4-113552. is there. This disc changer has a so-called 1-din (DIN) size, and has a housing 1
Is installed by being embedded in an instrument panel inside a vehicle compartment. The holder 2, which is a disk installation portion and a movable portion, moves between the inside and the outside of the housing 1 as indicated by an arrow. In FIG. 6, the holder 2
Shows a state in which the holder 2 protrudes to the outside of the housing 1, but when the holder 2 moves inward of the housing 1 and stops at that position, the holder 2 is moved from the right side of the housing 1 in the drawing. The magazine M is inserted and loaded therein. A plurality of discs D such as compact discs are stored in the magazine M as recording media, and the left end of the magazine M in the drawing is an entrance Ma of the disc D.

A disk holding portion K is provided in the housing 1. The disk holding portion K includes a drive chassis 3 and
A rotating body 4 provided on the drive chassis 3, a spindle motor (not shown) for driving the rotating body 4, and a light beam recorded on the disc D facing the disc D rotationally driven by the rotating body 4. An optical head H for reading signals is provided. The drive chassis 3 has a clamp arm 5
The base end portion of the clamp arm 5 is rotatably supported, and the clamp member 6 is rotatably supported at the tip of the clamp arm 5.

On the right side of the disk holding portion K in the figure, there are a feed roller 7 and a counter roller 8 which constitute disk selecting means.
Is provided. When the holder 2 is moving to the position where it overlaps with the clamp member 6 inside the housing 1, the feed roller 7 moves downward and the facing roller 8 moves together with the holder 2.

When any of the discs D is pulled out of the magazine M or returned to the magazine M, the holder 2 and the magazine M loaded therein are placed in the housing 1 as shown in FIG. Outside, that is, to a position that does not hinder the operation of the clamp member 6, and temporarily stops at that position. At this time, the feed roller 7 and the counter roller 8 approach each other, and both rollers 7 and 8 are stopped so as to face the disk D to be selected in the magazine M. Selected disc D
(In FIG. 6, the one located at the center among the three disks in the magazine M) is pushed out from inside the magazine M between the feed roller 7 and the opposing roller 8 and is rotated by the rotational force of the feed roller 7 to the left in the figure. Is transferred in the direction.

When the disc is selected, the clamp arm 5 is rotated upward as shown in FIG. 6, and the disc D transferred by the feed roller 7 moves between the drive chassis 3 and the clamp arm 5. Next, the clamp arm 5 rotates downward, and the central portion of the disc D is clamped by the clamp member 6.
The disk D is pressed against the rotating body 4 by the
Clamped on. Then, the holder 2 and the magazine M move into the space above the descending clamp arm 5 and clamp member 6, and in that state, the disk D is rotationally driven by the rotating body 4, and the optical signal is transmitted by the optical head H. Read.

When the disc D which has been reproduced is returned to the magazine M, as shown in FIG. 6, the holder 2 projects to the outside of the casing 1 and the clamp arm 5 rotates upward to rotate the disc D. The clamp is released. Then, the disc D is pushed up by the lower feed roller 7, and the feed roller 7
The disc is nipped between the feed roller 7 and the opposing roller 8
The disc D is returned to the magazine M by the feeding force of.

[0008]

Since this disc changer is mounted on a vehicle, vibration of the vehicle body always acts on the housing 1 when the vehicle is running, and the mechanism inside the housing 1 rattles due to this vibration. Rattle noise is likely to occur. In particular, since the holder 2 is a movable part, a guide mechanism using a groove or an elongated hole is provided between the holder and the housing 1, and rattling noise is generated due to a clearance between members in the guide mechanism. It is easy to occur. Further, in the disc changer of FIG. 6, since the facing roller 8 moves together with the holder 2, rattling noise of the support body (bracket) that supports this roller is likely to occur.

In FIG. 6, the holder 2 is located at the selected position where it is projected to the outside of the housing 1. However, the time during which the holder 2 is projected and moved to the selected position is only a short time when the disc is selected. Therefore, the rattling noise in the state shown in FIG. 6 is not a serious problem. On the contrary, when the holder 2 is moving to the position where it overlaps the clamp arm 5, it is a normal state,
The rattling noise of the mechanism at this time reduces the reliability of the apparatus.

Therefore, if a leaf spring extending from the holder 2 is provided so that the leaf spring always slides on the inner surface of the housing 1, rattling noise of the entire holder 2 can be suppressed. Similarly, a plate spring is also provided on a support body (bracket) supporting the opposing roller 8, and this plate spring is used for the housing 1.
If it is configured to slide on the inner surface of the, the rattling noise of the support of the opposing roller 8 can be suppressed. However, if the leaf spring is always sliding on the inner surface of the housing 1, the moving load becomes large when the holder 2 and the opposed roller 8 are moved to the outside of the housing 1 as shown in FIG. As a result, the operation becomes awkward and the power consumption of the motor also increases.

Another problem of this type is that the disc holding portion becomes a movable portion, and the disc holding portion moves between a selected position facing the magazine in the disc mounting portion and, for example, the home position at the bottom stage, It also occurs when the disc is driven while it is in the position. In this case, rattling noise is likely to be generated due to the clearance of the guide mechanism of the disk holding portion which is the movable portion. Similar to that shown in FIG. 6, it is possible to prevent rattling noise by providing an elastic pressure mechanism between the disk holding portion serving as the movable portion and the inner surface of the housing. Providing an elastic force mechanism moves the disc holding part, which is a movable part, to the selected position, and even during the selection operation of selecting one of the disks in the magazine, the movement load becomes large and the operation becomes unsmooth, In addition, the power consumption of the motor increases.

The present invention solves the above-mentioned conventional problems. When the disc mounting portion or the disc holding portion, which is the movable portion, is located at the standby position for driving the disc, rattling noise is generated. SUMMARY OF THE INVENTION It is an object of the present invention to provide a disc changer rattling prevention device capable of preventing the movement of the movable portion when the movable portion moves to a selection position for disc selection.

[0013]

DISCLOSURE OF THE INVENTION A rattling prevention device of the present invention comprises a disc mounting portion on which a plurality of discs are mounted,
Any one of a disc holding unit that holds the disc selected from the disc setting unit is a movable unit, and the movable unit can transfer the disc selected from the disc setting unit to the disc holding unit. In a disc changer that moves between a position and a standby position in which no disc is selected, a pair of drive links that are connected in an intermediate portion and are assembled in an X shape, and a drive unit that changes the relative angle of the drive links. Is provided, one end of each of the pair of drive links is connected to the movable portion side, and the other end of each of the drive links is connected to the fixed portion side. The drive link is moved between the selected position and the standby position, and an elastic arm is integrally formed on the drive link, and the movable portion is moved to the standby position. Occasionally, in the repression arms and repression on the movable part, the movable part and suppression force in the thickness direction of the driving link to the repression arms is given, in the process of the movable part is moved to the selected position The elastic arm and the movable portion are separated from each other.

According to the present invention, in the disc changer in which the disc mounting portion or the disc holding portion is a movable portion and the relative position of the both changes, the movable portion drives the disc or the standby position in which the disc is not driven. When the above condition is reached, the movable portion and the driving body come to a position where they overlap with each other, and the movable portion is elastically pressed by the elastic mechanism provided between the movable portion and the driving body, and rattling hardly occurs.
Further, the movable portion is driven by the power of the driving body, and the relative position between the movable portion and the driving body changes during driving. The movable part is moved by this driving body, and the elastic pressure by the elastic pressure mechanism is released. Therefore, when the movable portion moves to the selected position, the elastic pressure mechanism does not act as a moving load, and the movable portion can be smoothly moved with low electric power.

In the above, the movable portion is the disc mounting portion, and the disc mounting portion separates from the disc holding portion at the selected position, and the disc mounting portion overlaps the disc holding portion at the standby position. An elastic mechanism is provided between the drive body and the support body that supports the roller for pulling out the disc that is provided in the disc installation portion. Alternatively, an elastic pressure mechanism may be provided between any part of the disk installation part other than the roller support and the driving body.

Alternatively, the movable part is a disc holding part, and when the disc holding part is in the selected position, the disc holding part moves to a position where any of the discs can be selected in the disc mounting part, and in the standby position, it is located in the home position. An elastic mechanism may be provided between the disk holding portion and the driving body.

In this case, when the disc is selected, the disc holding portion moves along the disc installed in the disc mounting portion. At the time of this movement, the elastic pressure mechanism applies a load to the movement of the disc holding portion. The selection operation can be performed smoothly and quickly.

[0018]

[0019]

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a perspective view showing the structure of a disk changer in which a disk installation portion moves as an example of the present invention, and FIGS. 2 and 3 are side views according to operating states. The disc changer 10 is mounted on a vehicle. The housing 11 has a so-called 1-din (DIN) size, is embedded and installed in an instrument panel in a vehicle compartment, and the right side in the drawing is directed to the vehicle compartment.

In this disc changer 10, the holder 12 is a disc installation portion and a movable portion. The holder 12 is placed between the state in which it is in the standby position inside the housing 11 (FIG. 2) and the state in which it is in the selected position in which a part of the housing 11 protrudes outside (FIG. 3). It is supposed to move in the (b) direction. As shown in FIG. 1, the holder 12 is
The bottom plate 12a, the left side plate 12b and the right side plate 12c are integrally formed by bending, and further, the upper end of the left side plate 12b is bent to form the upper left plate 12d, and the upper end of the right side plate 12c is bent to form the upper right plate. 12e is integrally formed.

As shown in FIG. 1, at the front end of the holder 12 on the protruding side, a spring member 13a of a leaf spring is provided on the upper left plate 12d.
However, the spring member 13b is similarly provided on the upper right plate 12e. As shown in FIG. 2, the magazine M is loaded in the (a) direction with the holder 12 positioned inside the housing 11. At this time, the magazine M is loaded on the bottom plate 12a of the holder 12 and both side plates. 12b and 12c and upper left plate 12d
And is guided to the upper right board 12e. Then, in the holder 12, the magazine M is pressed downward by the spring members 13a and 13b and pressed against the bottom plate 12a. With the magazine M inserted and held in the holder 12, a plurality of disks D (for example, compact disks) housed in the magazine M are installed in the holder 12.

The magazine M is made of a synthetic resin material, accommodates three discs D (for example, an optical disc such as a compact disc), and its entrance Ma is directed to the direction (a) and mounted on the holder 12. To be done. At the end of the holder 12 on the (a) side, a counter roller 14 is provided which constitutes a part of a transfer mechanism for pulling out and returning the selected disk from the magazine M.
Both ends of the shaft 14a of the opposed roller 14 are rotatably supported by the bent pieces 15a on both sides of the roller support 15. Further, the bent piece 15a is provided on the side plate 12 of the holder 12.
It is rotatably supported by a support shaft 16 on the inner surfaces of b and 12c.

As shown in FIG. 2, when the holder 12, which is a disk mounting portion and a movable portion, is located inside the housing 11, and when the holder 12 is at the position shown in FIG.
When moving in the direction, the roller support 15 is rotated upward, and the opposing roller 14 is moved to the uppermost position as shown in FIG. That is, the housing 11
A guide groove 17 for guiding the shaft 14a of the roller is formed on the side plate side of the roller. When the holder 12 is in the state shown in FIG. 2, the shaft 14a slides in the guide groove 17, and as a result,
The facing roller 14 is located at the uppermost stage. Holder 12
When is moved in the (b) direction to the selected position shown in FIG. 3, the roller bracket 18 provided on the (b) side of the housing 11 is rotated clockwise by the force of the spring about the shaft 18a as a fulcrum. The feed roller 1 supported by the roller bracket 18
9 is pressed against the opposed roller 14.

When the holder 12 reaches the selected position in FIG. 3,
The switching drive body having a three-step drive groove operates, the shaft 14a is guided in the drive groove, and the height position of the opposing roller 14 is switched in three steps. The feed roller 19 follows this, the height positions of the feed roller 19 and the counter roller 14 both change, and the feed roller 19 moves to a position where any one of the three disks in the magazine M can be selected. Then, the power of the motor (not shown) is applied to the feed roller 19 and the feed roller 1
9 is driven to rotate, the disc D is pulled out from the magazine M, or the disc D which has been reproduced is returned to the magazine M. The roller support 15 is made of a metal plate.
A protrusion 15c forming a part of the elastic pressure mechanism is formed on the surface b by a press process.

As shown in FIG. 1, the ceiling plate 11 of the housing 11
A disc cam 21 is rotatably attached to the lower surface of a by a shaft 22, and the disc cam 21 is rotationally driven at a predetermined timing by the power of a motor provided in the housing 11. On the lower side of the disc cam 21 in the figure, drive links 23 and 24 assembled in an X shape are provided. In the configuration examples shown in FIG. 1 and subsequent figures, the drive links 23 and 24 serve as a driving body that engages with the holder 12, which is a movable portion, to move the holder 12.

The connecting pin 25 connecting the two drive links at the intersection of the two drive links 23 and 24 extends upward, and inside the cam groove 21a formed in the disc cam 21 located thereabove. Is inserted from below. The base ends of the drive links 23 and 24 are guided by the long holes 11c and 11d formed in the ceiling plate 11a of the housing 11, and the ends are formed on the connecting pieces 12g and 12i bent into the holder 12. It is guided by the long holes 12h and 12j. The disk cam 21 rotates, and the connecting pin 25 is guided in the cam groove 21a, so that an X-shaped drive link (drive body) 23 is formed.
And 24 expand and contract, whereby the holder 12 moves in the (a) direction or the (b) direction.

The drive links 23 and 24 which become the driving bodies
Are both formed of a metal plate, but an elastic arm 23a is integrally formed on the side of the drive link 23 located on the lower side of the X structure on the (b) side, and its tip is It is an elastic portion 23b bent into a V shape. In this configuration example, the elastic force arm 23a and the protrusion 15c provided on the roller support 15 constitute an elastic force mechanism. When the X structure of the drive links 23 and 24 contracts as shown in FIG. 2 and the holder 12 moves to the standby position shown in FIG.
The elastic pressure portion 23b of the elastic pressure arm 23a is connected to the roller support 15
The roller support body 15 is pressed down by being pressed by the protrusion 15c of the roller and the rattling is prevented.

As shown in FIGS. 2 and 3, a disk holding portion K is provided in the housing 11. Disk holder K
Can function as a disk drive unit, and the drive chassis 31 is supported via a damper 32.
The drive chassis 31 includes a rotating body 33 and the rotating body 3.
A spindle motor 34 for rotating 3 is mounted,
Further, the drive chassis 31 is provided with an optical head (not shown). Clamp arm 3 on drive chassis 31
5 is supported so that it can move up and down, and this clamp arm 3
A clamp member 36 is rotatably supported at the lower end of the front end of the No. 5.

The operation of the disc changer 10 will be described. With the cam groove 21a of the disc cam 21 shown in FIG.
When the connecting pin 25 is guided in the (a) direction and the drive links 23 and 24 combined in the X shape are contracted, the drive links 23 and 24 move the holder 12 into the housing 11. . And the holder 12
Is stopped above the clamp arm 35 and the clamp member 36 that have descended to the clamped state. At this time,
The holder 12, which is a disk installation part and a movable part, is in a standby position. Further, in FIG. 2, the opposing roller 14 and the roller support 15 move together with the holder 12 in the direction (a), and the shaft 14 is moved by the guide groove 17 provided on the housing 11 side.
a is guided, and the opposing roller 14 is located at the uppermost portion as shown in FIG. On the other hand, the feed roller 19 supported on the housing 11 side is lowered to a position that does not hinder the movement of the holder 12.

At this standby position, the elastic pressure portion 23 of the elastic pressure arm 23a provided on the one drive link 23 which is the drive body.
b is elastically pressed by the protrusion 15c of the roller support 15. The roller support 15 is pressed downward in the figure by the elastic force of the elastic pressure mechanism, so that in the state of FIG.
Rattling due to a clearance between the 4a and the guide groove 17 does not occur. Further, when the roller support body 15 is elastically pressed by the elastic pressure mechanism, the elastic force is applied to the holder 12 from the support shaft 16 and the holder 12 is also pressed, so that the holder 12 can be prevented from rattling. Therefore, at the standby position shown in FIG. 2, the disc D is clamped on the rotating body 33 of the disc holding portion K and is rotationally driven to perform the reproducing operation, or the disc driving by the disc holding portion K is stopped. While the vehicle body is being vibrated, the rattling noise of the movable part in the housing 11 does not occur even when the vehicle body vibration is applied to the housing 11.

When the disc D is selected and taken out from the magazine M, or when the disc D is returned to the magazine M, the disc cam 21 rotates and the cam groove 21.
The connecting pin 25 is guided by (a) in the (b) direction, the drive links 23 and 24 extend in the X state, and the holder 12 becomes (b).
Can be moved in the direction. As shown in FIG. 3, the holder 1
When 2 is moved in the (b) direction, the holder 12, which is the disk installation part and the movable part, becomes the selected position.

When the holder 12 moves in the (B) direction, the relative position between the drive link 23 and the roller holder 15 changes, so that the holder 12 starts to move in the (B) direction from the state shown in FIG. Immediately after, the bullet of the drive link 23
The pressure arm 23a is disengaged from the protrusion 15c, and the elastic force on the roller support 15 and the holder 12 is released. Therefore, the holder 12 can be smoothly moved in the (b) direction without being applied with a load by the compression arm 23a, and the power consumption required for the movement of the holder 12 can be small.

The holder 12 is moved from the position shown in FIG.
After starting to move in the direction, the elastic force arm 23a and the protrusion 15c do not exert elastic pressure until the holder 12 returns to the same position next time. However, since the holder 12 moves to the selection position shown in FIG. 3 and the disk selecting operation is performed for a short time, the rattling noise of the holder 12 during this time is hardly noticeable. When the holder 12 is moving in the (b) direction as shown in FIG. 3, the feed roller 19 is pressed against the opposing roller 14 by the force of the spring, and the opposing roller 14 is pushed upward in the drawing. , Roller support 15
There is no rattling.

At the selected position shown in FIG. 3, the clamp arm 35 and the clamp member 36 are raised to be in the unclamped state. At this time, the height position of the opposing roller 14 is selected in three stages by the three-stage drive grooves of the switching drive body (not shown), and any one of the disks D in the magazine M is selected.
Both rollers 14 and 19 face the front of the selected disk D. The selected disc D is pushed out in the (a) direction by the pushing mechanism in the magazine, and both rollers 14 and 19 are pushed.
And the disc D is transported in the (a) direction by the rotational force of the feed roller 19.

Immediately after the removal of the disc D from the magazine M is completed, the rotational force of the disc cam 21 causes the holder 12 to start moving in the (a) direction. At the same time, the clamp arm 35 descends, and the disc D taken out from the magazine M is clamped by the clamp member 36 on the rotating body 33. Then, returning to the standby position shown in FIG. 2, the elastic force arm 23 a of the drive link 23 causes the protrusion 1 of the roller support 15 to move.
It is suppressed by 5c.

FIG. 4 is a perspective front view showing a part of a disc changer in which the disc holding portion K is a movable portion.
FIG. 5 is a sectional view showing the structure of the disk holding portion K. In the disc changer shown in FIG. 4, the left side in the figure of the inside of the housing 41 is a disc installation portion 41a, and a large number of 6 to 10 discs D (for example, compact discs) are stored in the disc installation portion 41a. The loaded magazine M is loaded. A disc holding portion K is provided in the area on the right side in the figure in the housing 41, and the entrance Ma of the magazine M is directed toward the disc holding portion K.

The disk holding section K shown in FIG. 4 functions as a disk drive section. In FIG. 4, the drive chassis 43 is shown, and the drive chassis 43 is formed with a bent piece 42 downward in the drawing. In the actual structure of the disk holding portion K, as shown in FIG. 5, a clamp arm 46 faces above the drive chassis 43. A spindle motor 44 is supported on the drive chassis 43, and a rotating body 45 fixed to the rotation shaft of the spindle motor 44 is positioned on the drive chassis 43. A rotatable clamper 47 is supported on the clamp arm 46. When the disc D selected and pulled out from the magazine M moves onto the rotating body 45, the clamp arm 46 descends, and the clamper 47 clamps the central portion of the disc D to the rotating body 45.

A drive link 5 combined in an X shape is used as a drive body for moving the disc holding portion K up and down.
2 and 53 are provided. The lower end of the drive link 52 is
The lower base 51 is rotatably supported by a support shaft 54, and the upper end of the drive link 53 is rotatably supported by a support shaft 55 with respect to the bent piece 42 of the drive chassis 43. A sliding shaft 57 is provided at the upper end of the drive link 52, and the sliding shaft 57 is slidably inserted into an elongated hole 42 a formed in the bending piece 42. A slide shaft 58 provided at the lower end of the drive link 53 is slidably inserted in an elongated hole 51a formed in the lower base 51. The center of the drive link 52 and the center of the drive link 53 are connected by a connecting pin 59. The disk holding portion K is moved up and down by the expansion and contraction of both drive links 52 and 53 around the connecting pin 59.

An elastic arm 53a is integrally formed on the upper side of one drive link 53 so as to project therefrom. This oppression arm 53a
Has the same shape as the oppression arm 23a shown in FIG. Further, a protrusion 42b is integrally formed on the outer surface of the bent piece 42 of the disk holding portion K by bulging. In the configuration example shown in FIGS. 4 and 5, the elastic force mechanism is configured by the elastic force arm 53a and the protrusion 42b. The drive lever 61 functions as a drive body, and is guided by the guide shaft 62 to drive the drive lever 6
1 is driven in the (c)-(d) direction. This driving force is exerted by a motor or a solenoid mechanism. The drive lever 61 is provided with an inclined drive hole 61a, and the connecting pin 59 is slidably inserted into the drive hole 61a.

Next, the operation of the disc changer will be described. When the drive lever 61 is driven in the (c)-(d) direction by a motor or the like, the connecting pin 59 slides in the drive hole 61 a, and the drive link 52 and the drive link 5
The X state of 3 expands and contracts, whereby the disk holding portion K is driven up and down. By this ascending / descending operation, the selection operation in the magazine M is performed, the disc holding portion K reaches a position facing the selected disc D in the magazine M, and the drive lever 61 stops at that position. As shown in FIG. 4, when the disc holding portion K faces the entrance Ma of the magazine M, the disc holding portion K, which is a movable portion, is in the selected position.

When the disc holding portion K faces one of the discs D in the magazine M, the selected disc D is transferred in the (d) direction, and the center of the disc D is rotated by the rotating body 45.
, The clamp arm 46 descends, and the disc D is clamped. When the clamping of the disc D is completed, the drive lever 61 is driven in the (d) direction, and the drive hole 6
The connecting pin 59 is lowered by 1a, and the X state of the drive link 52 and the drive link 53 contracts. As a result, the disc holding portion K is lowered to the home position position where it is almost in close contact with the lower base 51. Then, at the home position, the disc D is rotationally driven by the spindle motor 44, and the signal recorded on the disc D is reproduced by the optical head (not shown) provided in the drive chassis 43. Further, in a normal state where the disc is not driven and the disc selection command is not issued, the disc holding portion K is always located at the home position.

When the disk holding portion K, which is a movable portion, is located at the home position, the elastic force arm 53a provided on the drive link 53 is elastically pressed by the protrusion 42b provided on the disk holding portion K, and by this elastic pressure mechanism. The disc holding portion K is pressed. Therefore, the long hole 42a of the disk holding portion K
The rattling noise is not generated even when the vibration of the vehicle body acts on the housing 41 due to the rattling caused by the clearance of the operating portion such as between the sliding shaft 57 and the sliding shaft 57.

When the disc holding portion K starts to rise from the home position, the pressing arm 53a and the protrusion 42b are immediately separated from each other, so that when the disc holding portion K rises, the disc holding portion K operates smoothly. In addition, the power consumption of the motor or the like for driving the drive lever 61 can be reduced. 4 and 5, the elastic arm provided on the drive lever 61 may elastically press the protrusion 42b when the disk holding portion K is lowered to the home position.

Further, the disc holding portion K does not have the rotating body 44 or the clamper 47 and simply holds the selected disc. When the disc holding portion K descends to the home position, The center of the disk may be installed on the rotating body of the disk drive unit provided on the base 51. The disc is not limited to a compact disc, but may be a CD-ROM, a digital video disc (DVD), a mini disc (MD), or the like.

[0046]

As described above, according to the present invention, when the movable part is moved to the standby position where the disk can be driven or the standby position where the disk is not driven, rattling noise of the movable part is generated by the elastic pressure mechanism. When the movable part is moved to the disc selection position, the load of the elastic pressure mechanism does not act on the movable part, so that the movable part moves smoothly and the power consumption for moving the movable part is small. Become.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing the configuration of a disc changer as an example of the present invention,

FIG. 2 is a side view showing a state in which a holder (disc mounting portion) in the disc changer shown in FIG. 1 is moved to a standby position in a housing;

FIG. 3 is a side view showing a state in which a holder (disk installation portion) is moved to a selected position protruding from the housing,

FIG. 4 is a partially transparent front view showing a disc changer having another structure of the present invention,

5 is a cross-sectional view showing in detail the structure of the disc holding portion shown in FIG.

FIG. 6 is a side view of a conventional disc changer,

[Explanation of symbols]

D disk M magazine K disk holder 10 Disc changer 11 housing 12 Holder (disk holder) 14 Opposing roller 15 Roller holder 15c protrusion 21 disk cam 23, 24 drive link 23a Repression arm 41 housing 41a Disk installation section 42b protrusion 43 drive chassis 52, 53 drive link 53a Elastic arm 61 Drive lever

Claims (4)

(57) [Claims] 1. A movable part of any one of a disk mounting part on which a plurality of disks are installed and a disk holding part for holding a disk selected from the disk mounting parts,
A disc changer in which the movable unit moves between a selected position where the disc selected from the disc setting unit can be transferred to the disc holding unit and a standby position where the disc is not selected. A pair of drive links assembled in an X-shape and a drive means for varying the relative angle of the drive links are provided, one end of each of the pair of drive links is connected to the movable portion side, and By connecting the end to the fixed part side and changing the relative angle of the drive link,
When the movable portion is moved between the selected position and the standby position, the drive link is integrally formed with an elastic arm, and when the movable portion is moved to the standby position, Bullet
The pressure arm presses against the movable part, and the movable part and the bullet
Suppression force in the thickness direction of the driving link is provided to 圧腕, the bullet in the process of the movable part is moved to the selected position
A rattling prevention device for a disc changer, characterized in that the pressure arm and the movable portion are separated from each other. 2. The rattle of the disc changer according to claim 1, wherein the movable portion is provided with a protrusion, and when the movable portion is moved to the standby position, the elastic arm is elastically pressed by the protrusion. Anti-sticking device. 3. The movable part is a disc mounting part, and the disc mounting part is disengaged from the top of the disc holding part at the selected position, and the disc mounting part and the disc holding part are separated by a roller provided in the disc mounting part. disk is transferred between the disk installation portion to the standby position is intended to overlap the disc holding portion, when the standby position, the repression and support for supporting the rollers provided in the disk installation section The rattling prevention device for a disc changer according to claim 1 or 2, wherein the arm is elastically pressed. 4. The movable part is a disc holding part, and when the disc holding part is in the selected position, the disc holding part moves to a position where any of the discs can be selected in the disc setting part, and in the standby position the disc holding part is at the home position. 3. The disc changer rattling prevention device according to claim 1, wherein the disc holding portion and the elastic pressing arm are elastically pressed when in the standby position.