JPS61236064A - Disk player - Google Patents

Abstract

PURPOSE:To make a disk player small in size as a whole and to decrease the cost by making the central distance of the first and second disk holding surfaces equal to the rotating distance of the first and second spindle motors. CONSTITUTION:A disk holding part 5 is provided with the first circular disk holding surfaces 5a and 5b to hold an optical type video disk 14 mounted on the first spindle motor 13, and the second circular disk holding surface 5c to hold a compact disk 18 mounted on the second spindle motor 19. The first two disk holding surfaces 5a and 5c are mutually concentrically formed at the central part of the disk holding part 5, and the second disk holding surface 5c is provided in the vicinity of the edge part in the projecting direction of the disk holding part. The central distance of the first disk holding surfaces 5a and 5b and the second disk holding surface 5c is made equal to the central distance of the rotation of the first and second spindle motors 13 and 19.

Description

DETAILED DESCRIPTION OF THE INVENTION L11 The present invention relates to a disc player, and particularly to a disc player that is capable of playing a plurality of types of discs having different outer diameters.

11L Recently, disc players that can play both optical video discs and compact discs have been developed. Spindle motors are used to rotate these discs, but optical video discs and compact discs differ greatly in the dimensions stipulated by the disc standards, such as center hole diameter, clamping area, and signal start diameter. Therefore, it has been difficult to create a spindle motor that can hold both disks in common.

In addition, in order to accurately trace the bits (dents) carved in micron order on the disk, it is necessary to have extremely accurate pickup performance and to control the rotation of the disk. Since the playback rotation speed of an optical video disc, which has a larger outer diameter and weight than a compact disc, is relatively high, a spindle motor that rotates the disc is required to be suitable for high-load, high-speed rotation.

On the other hand, compact discs are small and lightweight, weighing approximately 1/10 of optical video discs, and their playback speed is low.When driving them in rotation, they are easily affected by cogging and torque fluctuations, and extremely high-precision rotation is required. It is necessary to take control.

For the above-mentioned reasons, disc players that have already been developed do not share a common spindle motor, but have dedicated spindle motors for each of the optical video disc and compact disc. Although optical disc players and compact discs have the above-mentioned differences, they both focus a laser beam on the bit through a transparent resin surface and read information signals by the reflected light. , a format is adopted in which information signals from both discs are read by a single pickup.

FIG. 9 (ω shows the outline of the main parts of a disk player that has already been developed. As shown in the figure, the first spindle motor 2 that rotationally drives the optical video disk 201
02 and a second disc that rotationally drives a compact disc (described later).
The spindle motors 203 are arranged so that their rotational center axes are located in the same plane, and are capable of reciprocating in the direction of arrow Y and the opposite direction (for example, the front-rear direction of the disc player). Although not shown, a moving means for moving the first spindle motor 202 and the second spindle motor 203 is provided. Note that the position of the first spindle motor 202 shown in FIG. 9 (ω) is the disk rotation drive position of each spindle motor, and in this case, the arrow A carriage 204 is configured to reciprocate in the arrow X direction perpendicular to the Y direction and in the opposite direction (left and right direction of the disc player).The carriage 204 is equipped with an optical pickup means including an objective lens 205. It is.

FIG. 9+b+ shows the state when playing the compact disc 206, in which the second spindle motor 203 has moved to the disc rotation drive position, and the first spindle motor 202 has been moved away from this position. There is.

In a disc player having such a configuration, a large space must be provided within the player housing in order to allow the first spindle motor 202 and the second spindle motor 203 to reciprocate, making the entire disc player large. Further, the moving means for reciprocating the two spindle motors needs to have a large output, which also causes the disc player to become larger.

Furthermore, since the relative positional dimension with the optical pickup means needs to be highly accurate, it is necessary to accurately position both spindle motors at the above-mentioned disk rotation drive position, and a positioning mechanism for this purpose is provided for each spindle motor. Each motor is provided separately, making the structure complicated.

Separately from the above discussion, disc players that have already been developed include a disc carrying mechanism that can protrude outside the player housing and that carries the disc to be played, and that transports the disc to the playing position. ing. When positioning a disc placed on a disc holder outside the player housing on the disc holder surface of the spindle motor at the playing position, that is, the disc rotation drive position, the direction parallel to and perpendicular to the disc holder surface. Transport is performed by moving in two directions. FIG. 10 shows a carry 208 as the main part of the disc holder included in an already developed disc player. As shown in the figure, the carry 208 has first disk carrying surfaces 208a and 20811 that carry optical video disks 201 with diameters of about 30 cm and 20 cm, respectively, and a second disk carrying surface 208C that carries a compact disk 206, respectively. are arranged concentrically. By arranging the first and second disc supporting surfaces concentrically in this manner, it is possible to give a listener an aesthetic impression when the disc supporting part protrudes outside the player housing. However, Carry 2
If you do not want to use the color of the base of 08 as it is, it is a hot topic, and even if the surface of the carry is painted, the colors of the first and second disk supporting surfaces are the same color, As a result, there is a concern that the placement position of the compact disk 206, which has the smallest diameter, on the carry 208 may become unclear.

11 11 The present invention has been made in view of the above-mentioned points, and its purpose is to provide a device that can be easily miniaturized, has a simple structure, and is capable of carrying a disc and transporting it to a playing position. It is an object of the present invention to provide a disc player in which the mounting positions of various discs on a disc holder can be clearly determined and the operability is good.

A disc player according to the present invention includes a playing means and a disc transport mechanism for carrying and transporting a disc to be played to a playing position, the playing means being fixed on a predetermined support mechanism and rotating, for example, an optical video disc. first to drive
A spindle motor, a carriage carrying a pickup means and moving along a plane including a disk carrying surface of the first spindle motor, and a second spindle motor for rotationally driving a compact disk, the second spindle motor has a disk supporting surface located on substantially the same plane as the disk supporting surface of the first spindle motor, and
A first position where the distance between the centers of rotation with the spindle motor is larger than the sum of the radius of the disk to be supported and the radius of the disk support surface of the first spindle motor, and a predetermined plane including the disk support surface of the first spindle motor. The disc transport mechanism is movable between a range and a second position where the carriage leaves the movement locus, and further includes a moving means for moving the second spindle motor, and the disc transport mechanism protrudes outside the player housing. and a disk carrying part for carrying a disk and moving the disk in a direction parallel to and perpendicular to the disk carrying surface of the first spindle motor, and a drive mechanism for driving the disk carrying part. The disk supporting portion includes a first disk supporting surface for supporting a disk to be placed on the first spindle motor, and a second disk supporting surface for supporting a disk to be placed on the second spindle motor. , the distance between the centers of the first and second disk supporting surfaces is equal to the distance between the centers of rotation of the first and second spindle motors, and the outer diameter of the disk supported by the second spindle motor is equal to the distance between the centers of rotation of the first and second spindle motors. The second disk supporting surface is smaller than the outer diameter of the disk supported by the motor, and the second disk supporting surface is smaller than the outer diameter of the disk supported by the motor.
It is characterized in that it is provided at a position closer to the end in the protruding direction of the disk holder than the disk holder surface.

Embodiments Hereinafter, a disc player as an embodiment of the present invention will be described with reference to the accompanying drawings.

In the figure, reference numeral 1 indicates the entire disc player.

As shown in FIG. 1, the front surface of the housing 2, i.e., the front panel 3, is provided with a pressure-shaped opening 3a extending in the left-right direction so that the disk carrying part 5 can protrude outside the housing. It is being However, the term "left and right" as used herein refers to the front direction indicated by the arrow Y, and the direction of the arrow X is the left direction. Further, arrow Z indicates upward. A door 6 is provided near the opening 3a to close the opening. Furthermore, on the front panel 3 there is a group of switches 7 for operating the disc player.
is provided.

A chassis 8 is provided within the housing 2, and a base member 10 shown in FIG. 2 is fixed to a predetermined position on the lower surface of the chassis by screws 11 or the like. These base member 10, screws 11, etc. are collectively referred to as a support mechanism.

A first spindle motor 13 is provided at one end of the base member 10.
is permanently installed. This first spindle motor 13 is
It is for rotating an optical video disk 14 having a diameter of approximately 30C11 or 20σ, and is suitable for high-load, high-speed rotation. In front of the first spindle motor 13 is a carriage 15 carrying an optical pickup means.
is arranged, and in order to move along a plane including the disk holding part 13a of the first spindle motor 13,
It is guided by a guide shaft 16 provided on the base member 10.

Also provided on the base member 10 is a second spindle motor 19 for rotating a compact disk 18 having a diameter of approximately 12G. The second spindle motor 19 is movable between a first position shown by a solid line in FIG. 2 and a second position shown by a two-dot chain line. This first position means that the disk supporting surface 19a of the second spindle motor is on substantially the same plane as the disk supporting surface 13a of the first spindle motor 13, and the distance between the rotation centers of the first spindle motor 13 is The position is larger than the sum of the radius D2/2 of the compact disk 18 to be supported (where D2 is the diameter of the compact disk 18) and the radius R1 of the disk supporting surface of the first spindle motor 13.

That is, the second spindle motor 19 in the first position
The outer periphery of the compact disc 18 placed on the first
This is done so that it does not come into contact with the spindle motor 13. Further, the second position is a position away from the plane including the disk supporting surface 13a of the first spindle motor 13 and the movement locus of the carriage 15. However, although it is different from the detached position shown in the figure, the second position is as follows:
Even if it is within a plane that includes the disk holding surface 13a of the first spindle motor 13, it may be outside the diameter of the optical video disk 14 placed on the first spindle motor 13. As is clear from the figure, the second spindle motor 19
The movement is performed by rotational movement that changes the direction of the rotation center axis of the second spindle motor. The second position is below the plane including the disk supporting surface 13a of the first spindle motor 13 and is on the side of the movement trajectory of the carriage 15.

No other mechanism exists at this position, and by setting the above-mentioned second position at this position, the so-called dead space is effectively utilized, which leads to miniaturization of the disc player as a whole, especially in the direction of arrow Z. In other words, it is becoming easier to make the device thinner. Note that it is also possible to set the second position below the plane including the disk holding surface 13a of the first spindle motor 13 and the movement locus of the carriage 15. In this case, the second position can be set below the movement trajectory of the carriage 15. It becomes easier to downsize. Also,
In the illustrated second position, the direction of the central axis of rotation of the second spindle motor 19 is perpendicular to the moving direction of the disk supporting surface 13a of the first spindle motor 13 and the carriage 15, that is, substantially coincides with the direction of the arrow X. However, it is also possible to set the second position so that the rotation center axis coincides with the direction of arrow Y, for example.

The moving means for moving the second spindle motor 19 will be explained based on FIG. 3 (ω to C).

As shown, the second spindle motor 19 has a leg member 19(b), which is rotatably attached to the base member 10 at the distal end of the leg member and via a support pin 20. . A sector gear 21 is provided near the second spindle motor 19. The sector gear 21 includes a gear main body 21a, an intermediate member 2IC that is separate from the gear main body and is rotatable around a coaxial shaft 21b with the gear main body, and an intermediate member 2IC that is interposed between the gear main body and the intermediate member. Coil spring 2, which is a spring member that connects these
1d. A lever member 22 is rotatably attached at one end to the rotating end of the intermediate member 21c that is a component of the sector gear 21, and the other end of the lever member 22 is connected to the second spindle motor 19. bottle 22a at the free end of
It is pivotally connected via. Gear body 21 of sector gear 21
A gear 23 is meshed with a. This gear 23 is integrally molded with a worm wheel 25 that meshes with a worm 24. The worm 24 is connected to a pair of pulleys 27.
It is connected to the output shaft of a motor 30 via a belt 28 and a belt 29 . These gears 23° worm 24. Worm wheel 25. Pulley 27.28. The belt 29 and the motor 30 constitute a rotational force applying means that applies rotational force to the fan-shaped gear 21. Further, the rotational force applying means, the fan-shaped gear 21, the lever member 22, etc., provide the second
A moving means for rotationally moving the spindle motor 19 is configured.

Note that the moving means and the first and second spindle motors 1
3.19, a support mechanism including a base member 10 that supports both spindle motors, a carriage 15 including an optical pickup means, and peripheral small members related thereto constitute a playing means for playing a disc. There is.

Next, a description will be given of a disc transport mechanism that includes the disc carrying section 5 described above and transports a disc to be played to a playing position.

As shown in FIGS. 1 and 4, the disk holding section 5
, circular first disk carrying surfaces 5a and 5b carrying an optical video disk 14 to be placed on the first spindle motor 13, and carrying a compact disk 18 to be placed on the second spindle motor 19. A circular second disk supporting surface 5C is provided. first of two
The disk supporting surfaces 5a and 5C are formed concentrically at the center of the disk supporting section 5. Further, the second disk holding surface 5C is provided near the end of the disk holding portion in the protruding direction. In addition, the first disk supporting surfaces 5a, 5b
The distance between the centers of the first and second disk supporting surfaces 5C is
The distance between the rotation centers of the spindle motor 13°19 is made equal to the distance between the centers of rotation.

As shown in FIGS. 4 and 5, the disk holding section 5
A pair of rectangular plate-shaped support members 4 sandwich the
4, and the disk supporting portion 5 supports the disk supporting surface 1 of the first spindle motor 13 by means of both supporting members.
It is supported so as to be movable in a direction parallel to 3a, in this case, in the front-back direction (arrow Y direction and the opposite direction).

As is clear from FIG. 5, a pair of bins 44a are protruded from the outer surface of the support member 44 and are spaced apart in the front-rear direction. It is fitted so that it can be moved freely. That is,
The support member 44 is adapted to move along the L-shaped guide hole.

The single-shaped guide hole 8a includes a parallel portion 8b that extends parallel to the disk holding portion 13a of the first spindle motor 13, and a parallel portion 8b extending parallel to the disk holding portion 13a of the first spindle motor 13, and a parallel portion 8b extending parallel to the disk holding portion 13a of the first spindle motor 13.
and a vertical portion 8C extending perpendicularly to the vertical direction. A pair of left and right rectangular plate-shaped moving members 45 are provided so as to sandwich the single-shaped guide hole 8a together with the support member 44. Each moving member 45 is attached to the chassis 8 so as to be movable in the front-rear direction (the direction of arrow Y and the opposite direction). A pin 44a protruding from each support member 44 is slidably engaged with a cam hole 45a formed in each movable member 45 through a straight-line guide hole 8a of the chassis 8. The cam hole 45a is connected to the disk supporting surface 1 of the first spindle motor 13.
A parallel portion 45b extending in a direction parallel to 3a, in this case, the front-back direction, and a parallel portion 45b extending rearward (
and an inclined portion 45c that is inclined upward (in the direction of arrow Z) in the opposite direction of arrow Y). That is, when each movable member 45 moves in the front-rear direction with respect to the support member 44, the support member and the disk support portion 5 supported by the support member move in the vertical direction, that is, the disk support surface of the first spindle motor 13. The cam hole 45 is moved in a direction perpendicular to the cam hole 45.
a is formed.

As is clear from FIG. 5, a rack portion 45e is formed at the lower end portions of the pair of moving members 45, and a gear 47 meshes with the rack portion of one of the moving members. This gear 4
7 is another gear 48 that meshes with the gear 48, and a pulley 49 and a belt 5 that are integrally formed with a gear portion 49a that meshes with the gear 48.
0 and a small pulley 51, the output shaft of a motor 52 is connected to the output shaft of the motor 52. Although not shown, the other end of the shaft 53 with the gear 47 fitted at one end reaches the vicinity of the other moving member 45, and a A gear that meshes with the rack part is fitted. That is, by aligning the gears 47, the pair of left and right moving members 45 move together.

The above gears 47, 48, pulley 49, and belt 50
The small pulley 51, motor 52, shaft 53, etc. constitute a driving means for driving the pair of moving members 45 in synchronization.

Further, the drive means, each support member 44, and both moving members 4
5, the single-shaped guide hole 8a of the chassis 8, and peripheral small members related thereto constitute a drive mechanism for driving the disk holding section 5.

Although not shown, when the disk holder 5 is moved in the storage direction (rearward) into the housing 2 and reaches the movement limit position relative to the support member 44, the disk holder 5 is locked relative to the support member. Locking means are provided. Further, so that the support member 44 is moved together with the movable member 45 in the storage direction of the disc holder, the pin 44a of the support member reaches the intersection of the parallel portion 8b and the vertical portion 8C of the single-shaped guide hole 8a. A locking/releasing means locks the supporting member to the moving member 45, releases the locked state when the bin 44a reaches the intersection, and locks the supporting member 44 to the chassis 8 only in the storing direction. It is provided.

These locking means, locking/releasing means, the disk carrying part 5, the chassis 8, the drive mechanism (described above) for driving the disk carrier including the moving member 45, etc., and the peripheral small members related thereto, allow the performance to be played. A disk transport mechanism is configured to transport a disk to be played to a position, that is, on each spindle motor.

As shown in FIG. 5, another rack section 45f is formed at the lower end of the moving member 45 behind the rack section 45e. A gear 56 for operating a rotary potentiometer 55 is meshed with the rack portion 45. The potentiometer 55 and the gear 56 are attached to a bracket 8e projecting from the lower end of the chassis 8. Although not shown, the control circuit that controls the operation of the disc player includes a potentiometer 55.
A comparator is built in to compare the terminal voltage with the reference voltage. Similarly, as shown in FIG. 5, the front and rear ends of the movable member 45 are engaged with the front and rear ends of the chassis, respectively, thereby determining the movement start position and movement of the movable member, and thus the disk holding portion 5. A pair of detection switches 57 and 58 are attached to detect the end position.

These potentiometers 55, comparators (described above), detection switches 57, 58, etc.
A position detection means is configured to detect the position of.

Although it is possible to detect the position of the moving member 45, and thus the disc holder 5, using only the potentiometer 55, the accuracy of detecting the position of the disc holder 5 can be increased by using the detection switches 57 and 58 together as described above. In addition to improving the performance, the configuration of the control circuit described above can also be simplified. Further, although the gear 56 for operating the potentiometer 55 is meshed with the rack portion 45r of the moving member 45, the gear may be configured to mesh with the gear 47 or the gear 48. Further, although a rotary type potentiometer is used in the disc player, it is also possible to use a linear displacement type so-called slide volume.

Next, a description will be given of the clamp mechanism that clamps the disc transported to the performance position.

As shown in FIG. 6, a pair of holding members 61 and 62 are arranged in the housing 2 so as to be spaced apart from each other in the front-rear direction (the direction of arrow Y and the direction opposite thereto). Each holding member 61, 62 is moved in the left and right direction (arrow X direction and the opposite direction)
It is a substantially rectangular plate-like member that extends in the vertical direction (
It is caused to reciprocate in the two directions of the arrows and the opposite direction).

On the lower surface of each of the holding members 61 and 62, there are a first pressing member 63 and a second suppressing member 64 each having a disc shape, which cooperate with one of the first and second spindle motors 13, 19 to perform a disk clamping action. Each is rotatably attached.

Next, the operation of the disc player configured as described above will be explained in the seventh section.
The performance procedure will be briefly explained with reference to FIG. 8 and FIG.

First, the case where the optical video disc 14 (see FIG. 2) is played will be explained. As shown in FIG. 1, the disc holder 5 is completely projected out of the housing 2, and an optical video disc is placed at a predetermined position on the disc holder. It should be noted that the operation of protruding the disk holder 5 out of the housing is performed by following a process completely opposite to the retracting operation described below, and therefore will not be described in detail.

Once the optical video disc is placed on the disc holder 5, the disc holder 5 is manually pushed into the housing 2 to the position shown in FIGS. 4-6. When the disk carrier 5 reaches this position, a predetermined detection switch is activated, and the motor 52 shown in FIG. 5 starts rotating. Therefore, at this time, the disk holding portion 5 is locked to the support member 44 by the locking means, and begins to be pulled in integrally. As shown in FIGS. 7 and 8, the disk holding portion 5 moves rearward (in the direction opposite to the arrow Y direction), is completely housed within the housing 2, and further moves downward. Therefore, the optical video disc 14 is placed on the first spindle motor 13 and clamped. At this time, the diameter of the disc to be played is determined by a determining means (not shown). In this state, motor 5
2 stops, and disc play becomes possible.

When the loading of the optical video disc 14 is completed, the first spindle motor 13 rotates to move the carriage 15.
(See FIG. 2) begins to operate and disc performance begins.

When a detection switch (not shown) detects that the performance has ended and the carriage 15 has reached its movement limit position,
The carriage 15 and the first spindle motor 13 are stopped, and at the same time, the motor 52 starts its reverse operation. Therefore,
As previously mentioned, the disk support portion 5 protrudes from the housing 2 by following a process completely reverse to that described above, and is in the state shown in FIGS. 4 to 6. After that, manually pull out the disc holder 5 and remove the optical video disc 14.
Collect.

The case where the disc to be played is the compact disc 18 (see FIG. 2) will be explained. The operation of the disc transport mechanism is exactly the same as that for the optical video disc 14 up to the state shown in FIG. The above-mentioned determining means determines whether the disc to be played is the compact disc 18.
If it is determined that the second spindle motor 19
is moved to the first position shown in solid lines in FIG. 2, and the compact disc 18 is clamped on the second spindle motor. Thereafter, playing and disc collection are performed in the same manner as in the case of the optical video disc 14 described above.

Effects of the Invention As described in detail above, the disc player according to the present invention includes a first spindle motor which is fixed on a predetermined support mechanism and rotatably drives, for example, an optical video disc, and a first spindle motor which carries a pickup means and The second spindle motor has a carriage that moves along a plane including the disk supporting surface of the first spindle motor, and a second spindle motor that rotationally drives a compact disk, and the second spindle motor has a disk supporting surface that is connected to the disk of the first spindle motor. The disk is located substantially on the same plane as the supporting surface, and the distance between the rotation centers of the first spindle motor and the disk to be supported is equal to the radius of the disk to be supported and the first spindle motor.
It is movable between a first position that is larger than the sum of the radii of the disk carrying surfaces of the spindle motors and a second position that is separated from a predetermined range of a plane that includes the disk carrying surfaces of the first spindle motor and the movement locus of the carriage. The motor is equipped with a moving means for moving the second spindle motor.

Therefore, compared to a disc player in which all of the spindle motors are moved, the space provided within the player housing for the movement of the spindle motors is smaller, making it easier to downsize the disc player as a whole. It has become.

Further, the moving means for moving the second spindle motor can be of low output and small size, and furthermore, the positioning mechanism for positioning the second spindle motor at the first position, that is, the disk rotation drive position is also required. Since it is only necessary to provide one, it is easier to reduce the size of the disc player metal body, and the structure is simple.

Furthermore, the disc player V according to the present invention includes a disc that can protrude outside the player housing and that supports the disc and moves the disc in a direction parallel to and perpendicular to the disc supporting surface of the first spindle motor. It has a disk transport mechanism that includes a support section and a drive mechanism that drives the disk support section, and the disk support section has a first disk support surface that supports a disk to be placed on the first spindle motor. , the second above
A second disk supporting surface is provided for supporting the maximum number of disks to be mounted on the spindle motor, and the distance between the centers of the first and second disk supporting surfaces is equal to the distance between the rotation centers of the first and second spindle motors. Equally done.

In this way, by shifting the centers of the first and second disk supporting surfaces, the centers of the second disk supporting surfaces can be made to substantially coincide, thereby making it possible to clarify the placement positions of various disks on the disk supporting section. However, in this case, since the spindle motors are arranged apart from each other in the direction of movement of the pickup means, the disc carrying section is housed in the player housing. When this occurs, it is necessary to move the first and second disk supporting surfaces relative to each other to correspond to the position of each spindle motor. In order to achieve such a configuration, it is necessary to make the respective disc supporting surfaces movable relative to each other and to provide a special mechanism for moving the respective disc supporting surfaces, which increases the size and cost of the disc player. Invite. In the disc player according to the present invention, the distance between the centers of the first and second disc supporting surfaces is equal to the distance between the rotations of the first and second spindle motors, so a special mechanism as described above is not required.
This makes it easier to reduce the size and cost of the entire disc player.

Further, in the disc player according to the present invention, the second
The outer diameter of the disk carried by the spindle motor is smaller than the outer diameter of the disk carried by the first spindle motor;
The second disk supporting surface is provided at a position closer to the end in the protruding direction of the disk supporting portion than the first disk supporting surface.

Therefore, when playing, for example, a compact disc carried by the second spindle motor, the disc carrying part is
The compact disc can be placed on the second disc supporting surface by protruding out of the player housing by a distance slightly greater than the outer diameter of the compact disc. Therefore, the operability is extremely good.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the entire disc player according to the present invention, FIG. 2 is a perspective view of each spindle motor and its surrounding members, and FIG. 3 (ω or C) is a second spindle motor and its surrounding members. Each of the plan view, front view, left side view, and fourth
5 and 5 are respectively a plan view and a side view of the internal structure of the disc player, FIG. 6 is a diagram for explaining the clamp mechanism, and FIGS. 7 and 8 are for explaining the operation of the disc player. Figure 9 (ω, <b) and Figure 10
The figure is a diagram for explaining the main parts of a disc player that has already been developed. Explanation of symbols of main parts 2...Housing 2a...Contact portion 3...Front panel 3a...Opening 5...Disk Supporting parts 5a, 5b...First disk supporting surface 5C...
...Second disk carrier 6...Door 8...Chassis 8a...L-shaped guide hole 8b...Parallel portion 8c... ... Vertical portion 8e ... Bracket portion 10 ... Base member 13 ... First spindle motor 13a ...
... Disc holding surface 14 ... Optical video disc 15 ...
・Carriage 16... Guide shaft 18... Compact disk 19... Second spindle motor 19a...
... Disc support surface 20 ... Support pin 21 ... Fan-shaped gear 21a ...
Toothed body 21C...Intermediate member 21d...Coil spring 22...Lever member 22a, 44a...Bin 23.47.48.56.71 ...Gear 24.
... Worm 25 ... Worm wheel 27.28.49 ... Pulley 29.50 ... Belt 30.52 ... Motor 41 ... ...Ring spring 44... Support member 45... Moving member 45a... Cam hole 45e, 45f... Rack part 45h...
...Timing cam section 51...Small pulley 53...Shaft 55...Potentiometer 57.58...Detection switch 61.62... Holding member 63...First pressing member 64...Second suppressing member

Claims (1)

[Claims] The apparatus includes a housing, a playing means provided in the housing, and a disc transport mechanism that carries a disc to be played and transports it to a playing position, and the playing means includes a supporting mechanism and a playing means fixedly installed on the supporting mechanism. a first spindle motor; a carriage carrying a pickup means and moving along a plane including a disk carrying surface of the first spindle motor; and a disk carrying surface substantially coplanar with the disk carrying surface of the first spindle motor. a first position located above and in which the distance between the rotation centers of the first spindle motor and the first spindle motor is larger than the sum of the radius of the disk to be supported and the radius of the disk supporting surface of the first spindle motor; a second spindle motor movable between a predetermined range of a plane including a disk holding surface and a second position away from a movement locus of the carriage; and a moving means for moving the second spindle motor; a disk carrying mechanism that can protrude outside the housing and supports the disk and moves the disk in a direction parallel to and perpendicular to a disk carrying surface of the first spindle motor;
a drive mechanism for driving the disk holder, and the disk holder has a first disk holder surface for supporting a disk to be placed on the first spindle motor, and a drive mechanism for driving the disk to be placed on the second spindle motor. A second disk carrying surface is provided for carrying a disk to be placed, the distance between the centers of the first and second disk supporting surfaces being equal to the distance between the centers of rotation of the first and second spindle motors, and the distance between the centers of rotation of the first and second spindle motors is The outer diameter of the disk carried by the motor is smaller than the outer diameter of the disk carried by the first spindle motor, and
A disc player characterized in that the second disc supporting surface is provided at a position closer to an end in a protruding direction of the disc supporting part than the first disc supporting surface.