JPH0991823A - Disk guiding device for disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a disk from being one-sidedly carried and getting out of a position where the disk can be attached to a turntable. SOLUTION: This device is equipped with a disk inserting position regulating mechanism for regulating the inserting position of each disk, a large-diameter disk and a small-diameter disk, to the center in the case of inserting the disk in an insertion port 1, and a pair of guide levers 32 and 33 respectively arranged on both sides on the inner side of the disk inserting position regulating mechanism in a state where the turntable 4 is put in between and guiding the small- diameter disk to the position where the disk can be attached to the turntable 4. The respective guide levers 32 and 33 are supported to freely appear/disappear in a disk carrying space and energized in a direction where they are projected into the disk carrying space by energizing means 38 and 39. The parts of the levers 32 and 33 abutting on the large-diameter disk are formed to be slopes, so that hindrance in carrying the large-diameter disk is avoided by pressing the levers 32 and 33 by the outer peripheral end of the large-diameter disk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc guide device for a disc player, which guides a disc so that a disc having a large diameter and a disc having a small diameter inserted into an insertion opening formed on a panel surface of a housing can be mounted on a turntable. .

[0002]

2. Description of the Related Art A disc player of a so-called slot-in type, in which a disc is directly inserted into an insertion opening formed on a panel surface of a housing, and the inserted disc is drawn by a conveying roller and conveyed to a position where it is mounted on a turntable. It has been known.

In this slot-in type disc player, unless the disc is inserted near the center of the insertion port, it is difficult to convey the disc drawn by the conveying rollers to a position where it can be mounted on the turntable. Become.

In a slot-in type disc player, when discs of different diameters (large diameter and small diameter) (discs having a diameter of 12 cm and 8 cm in the case of a CD) are made compatible, a disc having a large insertion hole has a large insertion width. Since it is made to correspond to the diameter of the disc, the disc is inserted at a position deviated from the center of the insertion port, and the small-diameter disc cannot be conveyed to a position where it can be mounted on the turntable. Therefore, a slot-in type disc player compatible with large-diameter and small-diameter discs requires a disc-insertion-position regulation mechanism that regulates the disc to be inserted near the center of the insertion opening.

The disc insertion position regulating mechanism is, for example, as disclosed in Japanese Patent Laid-Open No. 4-90163, a pair of abutting members which are brought into contact with each other at two outer peripheral ends of the disc when the disc is inserted into the insertion port. A contact pin is provided, and the contact position of each of the large-diameter and small-diameter discs is restricted to the center by symmetrically displacing the contact pins with respect to the center.

[0006]

By the way, since the disc insertion position regulation mechanism only regulates the disc insertion position in the vicinity of the center, the disc position is regulated only by the disc insertion position regulation mechanism to a position where it can be mounted on the turntable. If the disc cannot be regulated and the disc is pulled in while the position regulation by the disc insertion position regulation mechanism is disregarded, the disc will be unevenly conveyed due to the condition of the disc conveyance mechanism.

Particularly, in the case of a small-diameter disc, since the position regulation by the disc insertion position regulation mechanism cannot be performed up to the position where it can be mounted on the turntable, the disc is more likely to be transported unevenly and the disc is mounted on the turntable. I was afraid that I would be out of the possible position.

Also, the disc is inserted in the horizontal direction,
In the case of a disc player in which the disc is mounted on the turntable in the horizontal direction, it is possible to convey the disc to a position where it can be mounted on the turntable by the position regulation by the disc insertion position regulation mechanism. However, in a disc player in which the disc is mounted on a turntable by holding the disc in a vertical or oblique direction other than the horizontal direction, or in a disc player that can be installed at various angles,
If the position regulation by the disc insertion position regulation mechanism is released, the disc is conveyed biased in the drop direction due to gravity, and it is difficult to convey the disc to a position where it can be mounted on the turntable.

By the way, storing a plurality of disks,
There is known an autochanger type disc player for automatically changing a disc to be played back. As this autochanger type disc player, for example, as disclosed in JP-A-59-231756.
There is one in which discs are stood and arranged side by side in a row so that the discs can be efficiently stored in a small space. This disc autochanger device is provided with an insertion port through which a single disc can be inserted on the panel surface of the housing, and the disc inserted into the insertion port is attached to the playback mechanism. The inserted disc is stored in the stocker via the reproduction block in which the reproduction mechanism is installed.

In this reproducing block, the disc is inserted in the vertical direction and the disc is conveyed in the vertical direction. Therefore, only the disc insertion position regulating mechanism described above guides the small-diameter disc to a position where it can be mounted on the turntable. It was impossible to do so, and some sort of guide mechanism was needed to guide the small-diameter disc to a position where it could be mounted on the turntable.

In view of the above-mentioned problems, the present invention provides a disc guide device for a disc player, which can surely guide the disc to a position where it can be mounted on a turntable even when the posture of the disc is other than horizontal. In addition, the disk guide device is achieved with a simple structure.

[0012]

DISCLOSURE OF THE INVENTION According to the present invention, a disc insertion position regulation mechanism for regulating the insertion position of each of a large diameter disc and a small diameter disc to the center when inserting the disc into the insertion hole, and the disc insertion position regulation mechanism. And a pair of guide levers that are arranged on both sides of the turntable on the inner side of the disc and that guide the small-diameter disc to a position where it can be mounted on the turntable. The guide levers are supported and biased by a biasing means in a direction of projecting into the disc transport space, and each guide lever is pressed by the outer peripheral end of the large-diameter disc to prevent obstruction of transport of the large-diameter disc. The contact portion with the radial disc is an inclined surface.

[0013]

According to the present invention, a pair of guide levers for guiding the small-diameter disc to a position where it can be mounted on the turntable are arranged at the inner side of the disc insertion position regulating mechanism to surely make the small-diameter disc irrespective of the posture direction of the disc. It is designed so that it can be attached to the turntable. The pair of guide levers are supported so as to be retractable and retractable, and the pair of guide levers are pressed in the retracting direction by the abutment of the outer peripheral edge of the large diameter disc, so that the conveyance of the large diameter disc is not hindered. I am trying.

Further, the guide positions for guiding the small-diameter discs by the respective guide levers are different in the depth direction so that the small-diameter discs are hard to be supported by the pair of guide levers.

Further, in a state where the guide lever is pressed by the displacement of the clamp plate to retract from the disc transport space and the disc is mounted on the turntable, the guide levers are separated from the disc at good timing, and the guide levers are released. Does not hinder the rotation of the disc.

Further, according to the present invention, in a disc player of an auto changer system in which discs are erected in a stocker and arranged in a horizontal row, a pair of guide levers prevents a small-diameter disc from being conveyed to the stocker side. The small-diameter disc that cannot be taken out is prevented from being stored in the stocker, and the pair of guide levers are pressed in the retracting direction by the abutment of the outer peripheral end of the large-diameter disc taken out from the stocker. The transfer of large-diameter discs from the playback block to the playback block is not obstructed.

[0017]

1 is a plan view showing an embodiment of the present invention, and FIG. 2 is a side view thereof. The disc guide device of the disc player shown in the figure targets a CD as a disc, and is compatible with a large-diameter disc having a diameter of 12 cm and a small-diameter disc having a diameter of 8 cm.

In the figure, reference numeral 1 is an insertion opening formed in the front panel 2 for inserting and ejecting a disc. Reference numeral 3 is a reproduction block provided with a reproduction mechanism including a turntable 4 for mounting a disk and an optical pickup 5 for optically reading a signal from the disk.

The housing of the reproduction block 3 is provided with a turntable 4 and an optical pickup 5, and is composed of a pedestal portion 6 and a cover plate 7 placed on the pedestal portion 6, and the pedestal portion 6 and the cover plate 6 are provided. A disk transfer space is formed between the disk 7 and the disk 7.

Reference numeral 8 denotes a clamp plate having a chuck member 9 for pressing the disc onto the turntable 4, and the clamp plate 8 is rotatably supported by the cover plate 7 by shafts 10a and 10b, and the disc is turntable. 4 is displaceable between a clamped position in which it is pressed against 4 and a non-clamped position in which the disk is not pressed against turntable 4.

Numerals 11 and 12 are from the insertion opening 1 to the reproduction block 3
The disc inserted in the disc transport space is transported to a playback position where it can be mounted on the turntable 4, and
It is a conveyance roller that conveys the disc at the reproducing position from the insertion port 1.

Driving gears 13 and 14 are coaxially fixed to the conveying rollers 11 and 12, respectively, and the driving gears 13 and 14 are connected by a connecting gear 15 so that the conveying rollers 11 and 12 are synchronized in the same direction. It is designed to be driven.

The conveying rollers 11 and 12 are pivotally supported by the same mounting plates 16 and 17 on the left and right sides of the reproduction block 3, and the mounting plates 16 and 17 are on the left and right side surfaces of the pedestal portion 6, respectively. It is rotatably supported by. The mounting plates 16 and 17 are attached to the transport roller 11
And 12 are displaceable between a transportable position in which they are in close contact with the inner wall of the cover plate 7 and the transport rollers 11 and 12 that are in a non-transport position in which they are separated from the inner wall of the cover plate 7. 11 and 12 are brought into close contact with the inner wall of the cover plate 7 by the urging force of a spring 18 that is installed between the left mounting plate 16 and the pedestal portion 6.

Numerals 19 and 20 are a pair of rotary arms rotatably installed on the cover plate 7 symmetrically with respect to the center around the rotary shafts 21 and 22, respectively.
Contact pins 19a and 20a, which extend toward the pedestal portion 6 side, are integrally formed at the tip of each of the terminals 20 so that the disks inserted into the insertion openings 1 come into contact with each other.

The rotating arms 19 and 20 are abutted by the springs 23 and 24, respectively.
0a is urged toward the center, and the contact pin 1
9a and 20a are arranged so as to be narrowed to the initial setting position due to the restriction of the shape of the cover plate 7.

Numeral 25 has elongated holes 26 and 27 extending in the width direction, and one of the elongated holes 26 has a protrusion 19b of the rotating arm 19.
Is inserted, and the protrusion 20 of the rotating arm 20 is inserted into the other long hole 27.
This is a connecting plate that connects the rotating arms 19 and 20 by inserting b.

Reference numeral 28 denotes a fixed plate having a sliding groove 29 formed in the portion corresponding to the center of the insertion opening 1 and extending in the disc transport direction, and fixed to the cover plate 7 with a screw. Two sliding pins 3 fixed to the center of the connecting plate 25
0 and 31 are inserted respectively.

The rotating arms 19 and 20, the connecting plate 25, and the fixed plate 28 constitute a disc insertion position regulation mechanism for regulating the insertion positions of the large-diameter and small-diameter discs inserted into the insertion opening 1 to the center.

In this disc insertion position regulating mechanism, when only one of the rotating arms 19 and 20 tries to rotate, the connecting plate 25 rotates about the protrusion 19b or 20b of the other rotating arm. Then, a force having a direction component orthogonal to the extending direction of the sliding groove 29 is generated in the sliding pins 30 and 31.

Here, the rotating arms 19 and 20 are abutted by the abutment pins 19a and 20 by the urging force of the springs 23 and 24.
When “a” is in the initial setting position, the sliding pin 30 moves into the sliding groove 2
Since it is arranged in the wide portion 29a formed near the center of 9, the sliding pin 30 is displaced in the wide portion 29a, and the sliding pin 30 is brought into contact with the inner wall of the wide portion 29a. . Therefore, the rotation of only one of the rotation arms 19 and 20 is prevented.

On the other hand, in the disc insertion position regulating mechanism, when the rotating arms 19 and 20 are rotated while maintaining a symmetrical relationship with each other, the connecting plate 25 is moved in parallel without being rotated. Therefore, the sliding pins 30 and 31 are respectively displaced along the extending direction of the sliding groove 29. Especially, when the sliding pin 30 is removed from the wide portion 29a, thereafter the rotating arm 1 is moved.
Even if only one of the rotation arms 9 and 20 is rotated, the other rotation arm is also interlocked and rotated while maintaining a symmetrical relationship with each other, so that the rotation of the rotation arms 19 and 20 is not blocked. You can do it.

Therefore, at the time when the outer peripheral end of the disc inserted into the insertion opening 1 is brought into contact with one of the contact pins 19a and 20a, the displacement of the contact pin brought into contact with the disc is not affected even when the disc is pushed. The sliding pin 30 has the wide portion 29a.
It is kept within a very small range within which it can be displaced, and further displacement is prevented. Then, the outer peripheral edge of the disc comes into contact with both the contact pins 19a and 20a, and when the disc is pushed in that state, the contact pin 1
9a and 20a are symmetrically displaced with the center as a boundary.

Therefore, the insertion position of the disc inserted into the insertion opening 1 can be restricted to the center. 32, 33
Are a pair of guide levers that are arranged on both sides of the turntable 4 so as to have different depth directions, and guide the small-diameter disc to a centering position where it can be mounted on the turntable 4. Each guide lever 32 and 33 is
The shafts 34 and 35 are formed in the holes formed in the cover plate 7, respectively.
Is rotatably supported by the cover plate 7, and the guide levers 32 and 33 are respectively formed with guide protrusions 36 and 37 which are protruded in a shape for guiding the small diameter disc to the center on the disc transfer space side. Has been done. The guide levers 32 and 33 are provided with blocking pieces 32a and 3 for blocking unnecessary protrusion from the hole portions of the cover plate 7, respectively.
3a is formed, and the guide levers 32 and 33 are guided by the splines 38 and 39, respectively.
7 is held in a state of being projected into the disc transport space.

In the disc guide device of the disc player having the above-described structure, when the disc is inserted through the insertion opening 1, the outer peripheral end of the disc is brought into contact with the contact pins 19a and 20a at the initial setting position. Therefore, the disc is regulated to the center by the disc insertion position regulation mechanism and is inserted into the disc transport space of the reproducing block 3.

Here, in the state where the disc is inserted from the insertion opening 1, the mounting plates 16 and 17 are displaced to the transportable position so that the transport rollers 11 and 12 are in close contact with the inner wall of the cover plate 7. There is. For this reason, the disc inserted into the disc transport space can be transported by the transport roller 11 and the cover plate 7.
It is inserted between the inner wall and the inner wall and is automatically pulled in by the carrying roller 11. The disc drawn by the transport roller 11 is also transported by the transport roller 12 and is transported to the reproduction position.

Further, when the disc is inserted from the insertion port 1, the clamp plate 8 is displaced to the non-clamp position, and the guide levers 32 and 33 are provided with the guide protrusions 36.
And 37 are in a state of being projected into the disc carrying space of the reproducing block 3, respectively. Therefore, when the disc inserted into the insertion opening 1 is a small-diameter disc, the small-diameter disc regulated at the center by the disc insertion position regulation mechanism and inserted into the disc transport space of the reproducing block 3 has the guide protrusions 36 and 37. Is guided to the centering position where it can be mounted on the turntable 4.

In this case, first, the guide lever 3 on the front side
The guide protrusion 37 of FIG. 3 guides the guide lever 36 of the guide lever 32 on the back side in the middle of this guide, and the guide protrusions 36 and 37 prevent the small-diameter disc from being supported. Guided smoothly. The distance between the guide protrusions 36 and 37 is smaller than the diameter of the small-diameter disc at the narrowest portion. Therefore, the small-diameter disc guided to the centering position by the guide protrusions 36 and 37 is stopped at that position, and further discs are prevented from being conveyed.

When the small-diameter disk is conveyed to the centering position, its state is detected by a sensor (not shown). When the detection is performed, a cam (not shown) is actuated, and the drive pin 40 formed integrally with the clamp plate 8 is driven by the cam to displace the clamp plate 8 to the clamp position. Therefore, the centered small-diameter disc is mounted on the turntable 4.

When the clamp plate 8 is displaced to the clamp position, the pressing protrusions 8a and 8b formed integrally with the clamp plate 8 press the guide levers 32 and 33, respectively. In this case, the portion pressed by the pressing protrusion 8 a is the side where the guide protrusion 36 is not formed by sandwiching the shaft 34 of the guide lever 32, and the portion pressed by the pressing protrusion 8 b moves the shaft 35 of the guide lever 33. Since it is on the side where the guide protrusion 37 is not formed, the guide protrusions 36 and 37 are retracted from the disc transport space of the reproducing block 3 by pressing the guide levers 32 and 33 as shown in FIG. To be done. Therefore, after the small-diameter disc is mounted on the turntable 4, the small-diameter disc is released from the guide by the guide protrusions 36 and 37.

When the clamp plate 8 is displaced to the clamp position, the mounting plate 17 is driven via the drive plate 42 to which the drive pin 41 driven by the cam for driving the clamp plate 8 is fixed. The mounting plate 17 is displaced to the non-transport position. Therefore, the other mounting plate 16 is also displaced to the non-conveying position, and the conveying rollers 11 and 12 are both separated from the small diameter disc.

Therefore, the small-diameter disc can be freely rotated as the turntable 4 rotates, and the disc can be reproduced. On the other hand, when the disc inserted into the insertion opening 1 is a large-diameter disc, as shown in FIG. 4, the large-diameter disc is regulated to the center by the disc-insertion-position regulating mechanism as in the small-diameter disc, so that the disc transport space of the reproducing block 3 is controlled. Inserted in.

The disc inserted into the disc transport space is inserted between the transport roller 11 and the inner wall of the cover plate 7, and is automatically pulled in by the transport roller 11, and is later transported by the transport roller 12. It is carried out and conveyed to the reproduction position.

By the way, the outer peripheral edge of the large-diameter disc is brought into contact with the guide protrusions 36 and 37 of the guide levers 32 and 33 during the transportation to the reproducing position.
As shown in FIG. 5, the front end of each of the discs 37 and 37 is formed as an inclined surface, and when the outer peripheral end of the large-diameter disc comes into contact with the guide protrusions 36 and 37, the large-diameter disc is conveyed. Accordingly, the guide protrusions 36 and 37 are rotationally displaced so as to be pushed out of the disc transport space. Therefore, the large-diameter disc is conveyed to the reproduction position without being obstructed by the guide protrusions 36 and 37.

In the case of a large-diameter disc, the centering position where the large-diameter disc can be mounted on the turntable 4 is regulated to the center by the disc insertion position regulation mechanism from the relationship between the disc diameter and the width of the disc transport space of the reproduction block 3. Can be transported to. Then, when the large-diameter disc is conveyed to the centering position, the state is detected by a sensor (not shown), and like the case of the small-diameter disc, the drive pin formed integrally with the clamp plate 8 by the operation of the cam. 40 is driven to displace the clamp plate 8 to the clamp position. Therefore, the centered large-diameter disc is mounted on the turntable 4.

Further, the guide levers 32 and 33 are pivotally displaced by the displacement of the clamp plate 8 to the clamp position, the guide protrusions 36 and 37 are separated from the large-diameter disk, and the mounting plates 16 and 17 are not conveyed. Due to the displacement to the position, the transport rollers 11 and 12 are separated from the large-diameter disc.

Therefore, the large-diameter disc can be freely rotated as the turntable 4 rotates, and the disc can be reproduced. FIG. 6 is a perspective view showing a general configuration of an autochanger type disc player which can be used by the disc guide device of the disc player described above. FIG. 6 is an automatic changer of the disc guide device of the disc player described above with reference to FIG. An example used in a disc player of the type will be described.

Incidentally, in FIG. 6, the same parts as those shown in the above-mentioned embodiment are designated by the same reference numerals. In the figure, a stocker 43 for storing a plurality of large-diameter discs is provided, and the stocker 43 is formed with a plurality of disc storage portions for storing the large-diameter discs in an upright arrangement in a horizontal row. .

The reproduction block 3 is the front panel 2
And the stocker 43 are vertically arranged so that the surface of the turntable 4 is vertical, and guided by the guide rails 44 so as to be movable along the arrangement direction of the disk storage of the stocker 43. The reproduction block 3 is provided with conveyance rollers 45 and 46 for conveying a large-diameter disc to the stocker 43 or a large-diameter disc stored in the stocker 43 into the reproduction block 3.

In the automatic changer type disc player having the above-described structure, when the large-diameter disc displaced to the reproducing position of the reproducing block 3 is stored in the stocker 43, the large-diameter disc is stored in the stocker 43 according to the instruction. The reproduction block 3 is driven while the storage position is detected.

When the position detection of the disk storage position is completed, the drive of the reproduction block 3 is stopped at that time, and thereafter, the fine positioning of the disk storage position is performed and the reproduction block 3 is locked in that state. Then, the large-diameter disc in the reproducing block 3 is then conveyed to the stocker 43 side by the conveying rollers 11 and 12.

When the conveyance of the large-diameter disc to the stocker 43 side is started, the large-diameter disc is conveyed to the conveying roller 4 on the other side.
It comes to be driven while being sandwiched between 5, 46, and is conveyed to the outside of the reproduction block 3.

When the large-diameter disc is conveyed to the outside of the reproducing block 3, the large-diameter disc is stored in the designated disc storing position of the stocker 43, and the large-diameter disc passes between the conveying rollers 45 and 46. Then, the large-diameter disk rolls to fit in the disk storage position.

In this way, the large-diameter disc in the reproduction block 3 can be stored in the stocker 43 so as to be stored in the designated disc storage position. Meanwhile, the stocker 43
The large-diameter disc stored in can be transported into the reproduction block 3.

In this case, first, the reproduction block 3 is driven while the position of the designated disk storage position is detected and positioned. After that, the base plate 47 is fixed to the reproduction block 3 and displaced integrally with the reproduction block 3.
The disc to be ejected is lifted from the disc storage position by a take-out lever (not shown) provided on the disc, and the large-diameter disc rolls out from the stocker 43 to the reproduction block 3 side along the take-out lever.

The large-diameter disc rolled out from the stocker 3 is inserted into the disc transporting space in the reproducing block 3 and is sandwiched between the transporting rollers 45 and 46 to be reproduced in the reproducing block 3.
It is driven toward the playback position inside.

When the large-diameter disk is driven toward the reproducing position, the large-diameter disk is switched from being driven by the conveying rollers 45 and 46 to being driven by the conveying rollers 12 or the conveying rollers 11 and 12 and being driven to the reproducing position. It

In this case, the large diameter disc is the stocker 43.
From the guide lever 32 during the transportation from the
And 33 are abutted on the guide protrusions 36 and 37,
As shown in FIG. 5, each of the guide protrusions 36 and 37 has an end portion on the side of the stocker 43 which is also an inclined surface.
When the outer peripheral edge of the large-diameter disc is brought into contact with the guide protrusions 36 and 37, the guide protrusion 36 is moved as the large-diameter disc is conveyed.
And 37 are rotationally displaced so as to be pushed out of the disc transport space. Therefore, the large-diameter disc is conveyed to the reproduction position without being obstructed by the guide protrusions 36 and 37.

When reproducing a large-diameter disc that has been conveyed to the reproducing position, the drive pin 40 is driven to displace the clamp plate 8 to the clamp position, and the large-diameter disc is mounted on the turntable 4.

The guide levers 32 and 33 are rotationally displaced by the displacement of the clamp plate 8 to the clamp position,
The guide protrusions 36 and 37 are separated from the large-diameter disc, and the conveying rollers 11 and 12 are separated from the large-diameter disc by the displacement of the mounting plates 16 and 17 to the non-conveying position.

Therefore, the large-diameter disc can be freely rotated as the turntable 4 rotates, and the disc can be reproduced. By the way, in the disc player of the auto changer system shown in FIG. 6, the reproduction block 3 is arranged vertically, and the disc is vertically inserted into the insertion opening 1.

When the disc is inserted upright, the disc insertion position regulation mechanism alone cannot guide the small-diameter disc to the centering position where it can be mounted on the turntable 4, but the reproducing block 3 is provided with guide levers 32 and 33. Therefore, the guide projections 36 and 37 continue to guide the regulation by the disc insertion position regulation mechanism.

In this case, the guide lever 33 on the front side is disposed below, and when the regulation by the disc insertion position regulation mechanism is released, the guide lever 33 supports the lower portion of the outer peripheral end of the small diameter disc. Is made,
The small-diameter disk can be transferred to the guide by the guide protrusions 36 and 37 without deviating from the transfer path during the transfer.

Therefore, even if the disc is inserted upright, the small-diameter disc can be guided to the centering position by the guide protrusions 36 and 37 and stopped at the centering position.

By the way, since the space between the guide protrusions 36 and 37 is narrower than the diameter of the small-diameter disc in the narrowest portion, the stocker 43 passes through the centering position.
The small diameter disc is prevented from being conveyed to the side.

Therefore, in the auto changer type disc player of the type in which the discs which can be stored in the stocker 43 are limited to the large diameter discs, the guide levers 32 and 33 serve to prevent the small diameter discs from being stored in the stocker 43. Therefore, it is possible to reliably prevent the small-diameter disc from being stored in the stocker 43.

[0066]

As described above, according to the present invention, the pair of guide levers for guiding the small-diameter disc to the position where it can be mounted on the turntable are arranged at the inner side of the disc insertion position regulating mechanism. The small-diameter disc can be reliably guided to a position where it can be mounted on the turntable regardless of the posture direction. Moreover, since the pair of guide levers are supported so that they can be retracted and retracted, and the pair of guide levers are pressed in the retracting direction by the contact by the outer peripheral end of the large diameter disc, the large diameter disc is conveyed. Will not be hindered.

Further, since the guide positions for guiding the small-diameter disc by the respective guide levers are different in the depth direction, it is possible to make it difficult to support the small-diameter disc. Also, because the guide levers are pressed by the displacement of the clamp plate to retract the guide portion of each guide lever from the disc transport space, separate each guide lever from the disc at the timing of mounting the disc on the turntable. It is possible to prevent each guide lever from obstructing the rotation of the disc at a good timing.

Further, according to the present invention, in a disc player of an auto changer system in which discs are vertically arranged in a row in a stocker and stored in a horizontal row, a pair of guide levers prevents a small-diameter disc from being conveyed to the stocker side. The small-diameter disc that cannot be taken out is prevented from being stored in the stocker, and the pair of guide levers are pressed in the retracting direction by the abutment of the outer peripheral end of the large-diameter disc taken out from the stocker. Therefore, even when the large-diameter disc is conveyed from the stocker to the reproduction block, it is possible to prevent the conveyance of the large-diameter disc from being obstructed by the guide levers.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a side view of FIG.

FIG. 3 is a side view for explaining the present invention in a state where a clamp plate 8 is displaced to a clamp position.

FIG. 4 is a plan view for explaining the present invention in the case where the disc inserted into the insertion port 1 is a large diameter disc.

FIG. 5 is a perspective view showing the shape of each of the guide protrusions 36 and 37 for explaining the carrying condition of the large-diameter disc.

FIG. 6 is a perspective view showing an outline of an overall configuration of an autochanger type disc player in which the disc guiding device of the disc player according to the present invention can be used.

[Explanation of symbols]

 1 Insertion Port 3 Playback Block 4 Turntable 6 Pedestal 7 Cover Plate 8 Clamp Plate 11, 12 Conveyor Rollers 16, 17 Mounting Plate 19, 20 Rotating Arm 25 Connecting Plate 29 Sliding Groove 32, 33 Guide Lever 36, 37 Guide Projection piece 38,39 Spring 43 Stocker

Claims (5)

[Claims] 1. A panel surface of a housing has an insertion port through which a disc is inserted and ejected, large and small-diameter discs are inserted into the insertion port, and the inserted disc is mounted on a turntable. Disc player,
When inserting a disc into the insertion port, a disc insertion position regulation mechanism that regulates the insertion position of each of the large diameter disc and the small diameter disc to the center, and a turntable on the back side of the disc insertion position regulation mechanism, on both sides, respectively. Is placed and guides the small diameter disc to a position where it can be mounted on the turntable 1
A pair of guide levers, each guide lever is supported so as to be retractable in the disc transport space, and is biased by a biasing means in a direction to project into the disc transport space. Each guide lever has a large diameter. A disc guide device for a disc player, wherein a contact portion with the large-diameter disc is formed as an inclined surface so as to avoid obstruction of conveyance of the large-diameter disc by being pressed by the outer peripheral edge of the disc. 2. The pair of guide levers are provided such that the guide positions for guiding the small-diameter disc by the guide levers are different in the depth direction.
A disc guide device for the disc player described above. 3. A disc player having a structure in which a clamp plate is displaced toward a turntable in order to press and insert an inserted disc onto the turntable,
2. The disc guide device for a disc player according to claim 1, wherein each of the guide levers is pressed by the displacement of the clamp plate to withdraw from the disc transport space. 4. An inner wall of a constituent member of a reproduction block which constitutes one surface of a disk conveyance space provided in a reproduction block in which a reproduction mechanism for reproducing the disk is installed, while holding the disk by a conveyance roller. In a disc player for carrying, one of
2. The disc guide device for a disc player according to claim 1, further comprising a pair of guide levers. 5. A playback block provided with a stocker for storing a plurality of discs upright and provided with a playback mechanism for playing back the discs is provided so as to be movable laterally along the array direction of the discs of the stocker, By moving the playback block, a disk to be played back by the playback mechanism is selected from the disks stored in the stocker, and the selected disk is loaded into the playback block to be mounted in the playback mechanism. Along with
By selecting the disc storage position where the stocker disc is returned by moving the playback block, the disc in the playback block is carried out to return to the selected disc storage position, and the disc to be played is automatically replaced. In the automatic changer type disc player, the pair of guide levers are shaped so that the small diameter disc cannot be conveyed to the stocker side, and the guide levers are pressed by the outer peripheral end of the large diameter disc taken out from the stocker. 2. The disc guide device for a disc player according to claim 1, wherein a contact portion of each guide lever with the large-diameter disc on the stocker side is an inclined surface so as to avoid obstruction of conveyance of the large-diameter disc.