JPS60214456A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To attain miniaturization and to improve the vibration resistance performance by providing a support member to a disc carrier being the moving side and providing a means positioning the pressing member to a prescribed position on the support member. CONSTITUTION:The support member 51 of plate form is provided to a position clipped by moving members 13 and 14 and moved vertically to a turntable 45 attended with forward/reverse movement of the moving members 13, 14. The pressing member 52 acting like disclamping in cooperation with the turntable 45 is provided freely turnably to the support member 51. The pressing member 52 has a magnet 52a formed as a ring and applies disclamping with the magnetic force of the magnet. Moreover, the pressing member 52 and the support member 51 supporting it freely turnably are made of a magnetic material such as a steel plate and the pressing member 52 is adsorbed to the support member 51 by the magnetic force of the magnet 52a when the support member 51 is in the disclamping position.

Description

TECHNICAL FIELD The present invention relates to a disc player, and more particularly to an autoloading disc player equipped with a disc transport mechanism that automatically transports a disc to a playing position.

Disc players that play information recording discs such as digital audio discs have already been developed and have recently become widespread in ordinary households.

However, since such conventional disc players are designed to be installed indoors in a quiet place, they are not suitable for outdoor use. Requirements for a disc player used outdoors include ease of disc loading, overall compactness, and good choreography resistance and dust resistance.

The object of the present invention is suitable for outdoor use,
In particular, it is an object of the present invention to provide a disk or cup player that is easy to downsize and reduce costs, and has good vibration resistance.

The autoloading disc player according to the present invention comprises:
a housing having a slot into which a disc to be played is inserted; a playing means disposed within the housing including a turntable; and a disc holder for holding the disc in a predetermined position, the housing includes a slot for inserting a disc to be played; and a clamp mechanism that clamps the disc transported to the performance position, and the clamp mechanism includes a suppressing member that cooperates with the turntable to perform a disc clamping action, and a supporting member rotatably supporting the pressing member, and positioning means for positioning the suppressing member at a predetermined position on the supporting member; The supporting member is attached to the disk holding part, and the positioning means is provided on the supporting member.Embodiments Hereinafter, an in-vehicle device as an embodiment of the present invention will be described. An autoloading disc player will be described with reference to the accompanying drawings.

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

As shown in FIG. 1, a front panel 3 forming a part of the housing 2 is provided with a slot 3a extending in the left-right direction for inserting a playing disc 5. The left and right direction here refers to the front direction indicated by arrow Y. Therefore, the arrow X direction in the figure indicates the left direction, and the arrow 2 direction indicates the upward direction.
The disk 5 uses a laser beam to record and read signals, and has an outer diameter of about 12 cm. The front panel 3 is also provided with a group of operation buttons 6 for operating the disc player, such as play start and eject.

As shown in FIGS. 2 to 6, a chassis 7 serving as a support member is provided within the housing 2. As shown in FIGS. In addition,
The chassis 7 consists of a main body 7a and a sub-chassis 7b fixed to the front end of the main body. As shown in FIGS. 1 and 12, the chassis 7 is supported by the housing 2 via four vibration isolating members 8 made of rubber or the like. However, only the two vibration isolating members 8 on the left side are shown in FIG. A tray 10 is provided on the chassis 7 so as to be movable in a direction parallel to a rotating surface of a turntable, which will be described later, in this case, in a front-back direction (in the direction of arrow Y and in the opposite direction). As is particularly clear in FIG. 6, the tray 10 is composed of an L-shaped main body 10a and a side wall member 10b screwed to the right end of the main body. A bracket 12 is fixed to the left end of the chassis 7, and a bin 10.0 protruding from the left end of the tray 10 is inserted into an elongated hole 12a formed by extending in the front and rear direction of the bracket 12. Supported by slidable engagement.

On the other hand, a pair of moving members 13 are provided on both left and right sides of the chassis 7.
and 14 are arranged. The right moving member 14 is made of resin or the like, and is provided at the right end of the chassis 7 in the tray moving direction.
That is, it is attached to the right end of the tray 10, which is slidably supported by a guide bar 15 that is fixed and extends in the front-rear direction.

Specifically, the movable member 14 is supported by a long hole 14a formed in the movable member extending in the front-rear direction and slidably engaged with a bin 10e protruding from the right end of the tray 10. There is. Further, the left moving member 13 is located between the tray 10 and the bracket 12, and a long hole 13a extending in the front-rear direction is provided at the left end of the i-ray 10. It is supported by being slidably engaged with the bottle 10c. Note that the right end of the first tray 10 is connected to the guide bar 15 in the tray movement direction.
That is, they are slidably engaged and supported at two support points spaced apart by 111 in the front-rear direction. An interlocking shaft 17 having arms 17a and 17b fixed to both ends thereof is provided at the rear end of the tray 10 and extends in the left-right direction, and one is rotatably supported by the tray 10. Arm 17a,
Bins 17C and 17d are protruded from the inner surface of the tip end of the movable member 17b, respectively, and the pins are inserted into elongated holes 13b and 14 formed at the rear end of the movable member 13.14 and extending in the vertical direction.
b, respectively, and are slidably engaged with each other. A power transmission ta II 19 consisting of a plurality of rotatably supported gears is provided at the right end of the chassis 7. Power transmission mechanism 19
A motor 20 is fixedly installed in front of the power transmitter 4M, and as is particularly clear in FIG.
It meshes with a.

Further, the final stage gear 19b of the power transmission mechanism 19 is a moving part'
814 is engaged with a rack portion 14d formed at the lower end of the left side surface in the moving direction of the moving member, that is, in the front-rear direction. In addition, the final stage gear 19b and the rack portion 14d
The engagement position with the guide bar 15 is near the midpoint of the two support points where the tray 10 is slidably engaged with and supported by the guide bar 15.

The above motor 20, power transmission mechanism 19, and arm 17
The interlocking shaft 17 including the movable members 13 and 17 constitutes a driving force applying means for applying a driving force to the moving members 13 and 14.

A container 22 holding a disk 5 is arranged below the tray 10 at a position where it is sandwiched between moving members 13.1=1. The container 22, the tray 10, and the moving members 13 and 14 constitute a disk holding section.

Note that the disk 1 is mounted on the disk holding portion of the container 22.
A protective film 23 made of felt or the like is attached to prevent direct contact between the 0 holder and the disc 5. container 2
A total of four wooden bins 22a, one pair each at both left and right ends of the bottle 2, are provided extending in the left-right direction. The container 22 is configured such that each of the bins 22a is slidably engaged with four elongated holes 10f formed in the tray 10 to extend in the vertical direction. It is supported so as to be movable within a predetermined range. The bin 22a of the container 22 also has the long hole 10f.
After passing through, the movable members 13 and 14 are slidably fitted into cam holes 13d and 14d formed in the movable members 13 and 14, respectively. The cam holes 13d and 14d have a tapered portion that slopes upward in the disk insertion direction, that is, from the front to the rear, that is, in a direction in which the container 22 moves away from the turntable, which will be described later, and an end of the tapered portion in the disk insertion direction, that is, the rear end. It is composed of a horizontal part that continues and extends rearward, and a tapered part that continues from the rear end of the horizontal part and extends parallel to the tapered part. That is, as the moving members 13 and 14 move back and forth, the container 22 moves up and down.

Next, the tray 10 is placed at a predetermined position on the turntable, which will be described later, and the disc 5 carried by the container 2 is
The container 22 is locked to the tray 10 until the center of rotation of the turntable reaches a position where it substantially coincides with the rotation axis of the turntable. A lock/release means for releasing the locked state and locking the tray 10 with respect to the housing 2 will be explained.

As shown in FIGS. 4 and 6, a recess 7C is formed at the right end of the main body 7a of the chassis 7. On the second, right moving member 14, a cam groove 14e is formed so that the position in the tray movement direction coincides with the position of the recess 7C when the tray 10 is at a predetermined position on the turntable.

A lever 25 is swingably provided at the rear end of the tray 10, and a pin 26 that can be engaged with the recess 7C and the cam groove 14e projects from the swinging end of the lever. In other words, the pin 26 has a J shape that selectively engages with the recess 7C and the cam groove 14e. In addition, moving member 1
/1 is formed to extend forward continuously from the cam groove 14e, and is slidably engaged with the moon pin 26, after the tray 10 reaches the above-mentioned predetermined position on the turntable.
A long hole 14 is formed to allow movement of the .

These recesses 7c, cam grooves 14e, elongated holes 14f and bins 2
6, the container 22 is locked to the tray 10 until the tray 10 reaches a predetermined position on the turntable, and when the tray 10 reaches the predetermined position 1, the locked state of the container 22 with the tray 10 is locked. A lock for releasing and locking the tray 10 to the housing 2.
A release means is configured.

Further, the lock/release means, the chassis 7, and the tray 1
0, a container 22, moving members 13, 14, a power transmission mechanism 19, a motor 20, etc.
The feeding means constitutes a disc transport mechanism that generally transports the disc 5 inserted through the slot 3a of the housing 2 to the performance position, that is, onto the turntable.

Next, a description will be given of the playing means that is inserted into the housing 2 and plays the disc.

As shown in FIG. 6, a support member 28 having a substantially U-shape as a whole is disposed on the lower surface of the chassis 7, which is a part of the disk transport machine +M, and is made of flexible rubber or the like. It is attached to the chassis 7 via four vibration isolating members 29 consisting of. Two guide shafts 30a and 30b are fixed to the support member 28, which extend in parallel to the rotating surface of the turntable, in this case in the front-back direction, and serve as guide means. A slider 31 formed in a substantially U-shape is movably supported on the guide shafts 30a and 30b at both sides in the direction of movement, that is, at both left and right ends.

As shown in FIGS. 9 and 10, the slider 31 has a screw 31 extending in the direction of movement of the slider, that is, in the front-rear direction.
A is provided, and a rectangular parallelepiped case 33 is rotatably held by the screw. That is, case 3
3 rotates in a plane perpendicular to the slider movement direction. Furthermore, inside the case 33, there is an objective lens 33a that irradiates the information recording surface of the disc 5 with a laser spot light.
An optical pickup means (other than the objective lens 33a is not shown) for reading information from the disk is carried. Further, the slider 31 and the case 33 are collectively referred to as a carriage 34.

Here, for example, in the J: sea urchin shown in FIG. 2 and the rays 1 to 10 forming a part of the disk transport mechanism described above, the disk transport mechanism is in the state shown in FIG. ), the objective lens 33
3, in which a circular opening 10d facing a is formed;
This opening 10d is used to remove dust and the like that has formed on the surface of the objective lens 33a and to remove the disk m feeder.
c <It is provided for wiping. Therefore, although it will not be described in detail, it is a member that constitutes a part of the disc transport 3'A m 4fa, and is a member that connects the tray 10 and the objective lens 33a when the disc transport m structure and the carriage 34 are in the above-mentioned pre-performance position. An opening 10d is also provided in the intervening covering member.
Needless to say, an opening similar to that is formed. Further, as shown in FIG. 1, a circular opening 2a is also formed on the upper surface of the housing 2. This frontage 2
Similarly to the opening 10d described above, the opening a is also positioned so as to face the objective lens 33a when the disk transport HM holder and the carriage 34 are at the rest position of the above-mentioned performance t''+iT. A lid 2b that can close this opening 2a is fixed with a screw. By providing such an opening in the housing 2, the objective lens 33a can be cleaned without removing the housing. Although not described in detail, it is also possible to adjust the light irradiation power of the optical pickup means through the openings 10d, 2a, etc.

J: sea urchin shown in Figures 9 and 10
At the end of the slider 31 in the moving direction, there is a long hole 3 extending in the left-right direction in a plane perpendicular to the slider moving direction.
1b is formed. The elongated hole 31i1 is provided corresponding to one end of the rotation of the case 33, and the circular head 35b of the biased screw 35 whose threaded portion 35a is screwed into the case 33 is fitted into the elongated hole. As the name suggests, the axial center of the threaded portion 35a of the bias screw 35 is offset with respect to the axial center of the circular head 35b. That is, by rotating the biasing screw 35, the case 33 is rotated slightly around the support screw 31a.The biasing screw 35 and the circular head 35b of the biasing screw are fitted together. Adjustment of the rotational angular position of the case 33, that is, the so-called tangibility 1 of the optical pickup means (not shown) provided in the case, is performed by the matching elongated hole 31b.
An adjusting means for making adjustments in one direction is constructed. In addition, after this adjustment is completed, it is fixed with the screw 31C.

As shown in FIGS. 6 and 11, a screw shaft 37 is rotatably attached to both ends of the support member 28 and is arranged parallel to the guide shafts 30a and 30b. A screw 38 is arranged in front of the screw shaft 37, and the screw shaft 37
is configured to be rotationally driven by the motor via power transmission means including a pulley 39 and the like. As is particularly clear in FIG. 11, the slider 31 has a leaf spring 4
1 is fixed in the form of a cantilever beam, and a half nut 42 screwed onto the screw shaft 37 is attached to the free end of the leaf spring.
is permanently installed.

A drive mechanism for driving the carriage 34 is constituted by the screw shaft 37, the motor 38, the power transmission means including the pulley 39, the leaf spring 41, the half nut 42, and related peripheral small members. ing.

A turntable 45 is disposed on an extension of the movement locus of the carriage 34, at a position sandwiched between the carriage and the drive mechanism that drives the carriage, and is fixed to the support member 28. . As is clear from FIG. 7, the turntable 45 is directly rotationally driven by a spindle motor 46, which is a drive source and is provided to support the turntable.

As shown in FIGS. 6 and 9, the case 33, which is a part of the carriage 34, has a notch 331 into which a portion of the turntable 45 and the spindle motor 46 facing the case 33 can be fitted. is formed6. When the carriage 34 is at its home position, that is, at its rest position before playing, the turntable 45 and spindle motor 46 are fitted into the notch 33b.

As shown in FIGS. 7 and 8, an idler 47b, which is rotatably supported by a holding mechanism 47a, is in contact with the output shaft 468 of the spindle motor 46.

The holding mechanism 478 and the idler 47b constitute a close contact means for bringing the output @46a and the bearing portion 46b that supports it into close contact. Output 1'llll 46
Normally, a gap of about 1 μm occurs between the bearing portion 46a and the bearing portion 46b, but by providing the above-mentioned contact means, this gap is corrected, and the rotation of the output shaft 46a, and therefore the turntable 45, is accurate and smooth. It becomes.

The above-mentioned support member 28 and guide shafts 30a, 3Q
b, the key 17, the carriage 34, the drive mechanism including the motor 38 (driving the carriage 34), and the turntable 45.
, the spindle motor 46, the above-mentioned close contact means consisting of the idler/17b, etc., and peripheral small members related thereto constitute a playing means for playing a disc.

Here, the method for attaching the support member 28 to the chassis 7 will be described in detail.

The four support points of the support member 28 relative to the chassis 7, that is, the positions where the vibration isolating member 29 is arranged are centered on the midpoint of the movement trajectory of the center of gravity of the carriage 34 and the midpoint between the rotation axis of the turntable 45. It is provided at the beginning of the arc. The vibration isolating member 29 is provided to protect the performance means from external vibrations such as body vibrations of the automobile in which the in-vehicle autoloading disc player is mounted, and the supporting point of the supporting member 28 is as described above. By arranging the two vibration isolating members at the supporting points, the vibration isolating effect is significantly improved. Note that the support point of the support member 28 is set as described above in consideration of the change in the center of gravity position of the playing means due to the movement of the carriage 34. Even if the support point of the support member 28 is set equidistantly on a circular arc centered on the center of gravity of the playing means when it is at the midpoint, the vibration isolating member 29 is provided at the support point. Provides anti-vibration effect.

Next, a description will be given of the clamping mechanism that clamps the disc 5 transported to the performance position, that is, the turntable 45.

As shown in FIGS. 2, 3, and 6, a plate-shaped support member 51 is provided on one side of the container 22 at a position sandwiched between the moving members 13 and 14. As shown in FIGS. At both left and right ends of this support member 51, a pair of four-piece wooden bins 51 are provided.
a is extended in the left-right direction. Support member 5
1, each of these bins 51a vibrably engages with four elongated holes 10o formed in the tray 10 to extend in the vertical direction, so that the tray 10 is moved in a direction perpendicular to the 1-lay movement direction, that is, in the vertical direction. It is supported so as to be movable within a predetermined range. The bins 51a of the support member 51 are also inserted into the elongated holes 10G of the tray 10, and the cam holes 13 (+ and 14g) formed in the moving members 13 and 14, respectively.
is slidably engaged with. The cam holes 13g and 14g are linearly inclined upward in the direction in which the support member 51 moves away from the turntable 45, that is, from the front to the rear. In other words, the support member 51 moves up and down with respect to the turntable 45 as the moving members 13 and 14 move back and forth.

Note that the cam holes 13d formed in the moving members 13 and 14
, 13o and 14d and 1/I! ], the cam holes 13d and i4d that engage with the bin 22a of the container 22 are referred to as first cam holes;
The cam holes 13 (+ and 14g) that engage with the cam holes 13 (+) and 14 (a) are referred to as second cam holes. The total length in the insertion direction is approximately equal μ
It has become.

The support member 51 is rotatably provided with a pressing portion t152 that cooperates with the turntable 45 to perform a disk clamping action. Note that the position shown in FIG. 3 is referred to as the unclamped position of the support member 51. In addition, the support member 51
The position of the support member 51 when the support member 51 moves downward by a predetermined amount and the suppression member 52 comes into contact with the surface of the disk placed on the turntable 45 is referred to as a clamp position. The support member 51 moves between the clamp position and the non-clamp position. As also shown in FIG. 3, the pressing member 52 has a magnet 52a formed in an annular shape, and the magnetic force of the magnet clamps the disk. Further, the pressing member 52 and the supporting member 51 that rotatably supports the pressing member 52 are made of a magnetic material such as a steel plate.
is in the non-clamped position, the pressing member 52 is attracted to the supporting member 51 by the magnetic force of the magnets 1 to 528. Further, as shown in FIG. 6, a buffer member 52b made of felt or the like is attached to the upper surface of the suppressing member 52, so that when the supporting member 51 is in the non-clamping position, ] The upper surface of the suppressing member 52 and the housing 2 are prevented from coming into direct contact with each other due to the vibration of the supporting member. However, this buffer member 52
may be provided not only on the upper surface of the pressing member 52 but also on a part of the housing 2 that faces the suppressing member 52 when the supporting member 51 is in the non-clamping position.

As is particularly clear in FIG. 2, a pair of right and left clamping plates 54 and 55 are arranged on the lower surface of the support member 51, sandwiching the pressing member 52, and the gripping plates 54 and 55 are arranged in the left and right direction via three bottles 571a and 55a, respectively. The supporting member 5 is movably moved in the
It is attached to 1. A circumferential groove 520 formed on the outer periphery of the suppressing member 52 is provided in each opposing portion of the clamping plate 5.4.55.
(3rd figure) is formed with circular arc parts 54b and 55b that are fitted into the circumferential groove 5 of the pressing member 52.
Two protruding claws 54C and 55C that can be engaged with the bottom surface of 20 are provided.

A pair of left and right synchronization plates 57.58 are also provided on the lower surface of the support member 51 behind the clamping plates 54.55, and are rotatably attached to the support member 51 via bins 57a and 58a, respectively. ing. Each synchronizing plate 57, 58 has three arm parts 57C, 57d, 57e and 58c, 58.
d and 58e. A long hole 57f is formed at the tip of the arm portion 57c, and a bottle 58f protruding from the tip of the arm portion 58c is slidably engaged therewith. Further, elongated holes 57o and 58o are also formed at the tips of the arm portions 57d and 58d that protrude approximately forward, and the cylindrical elongated holes are connected to the bins 511 that are protruded from the clamping plates 54 and 55, respectively.
e and 55e, respectively, in a slidable manner. That is, the synchronizing plates 57 and 58 are configured to synchronize the operations of the clamping plates 54,55. The clamping plate 54 and the synchronizing plate 57 are collectively referred to as the first positioning member 61, whereas the clamping plate 55 and the synchronizing plate 58 are referred to as the second positioning member 61.
They are collectively referred to as positioning members 62. That is, these pair of positioning members 61 and 62 are provided movably in a plane substantially perpendicular to the rotation axis of the suppressing member 52, and each engages with the outer periphery of the suppressing member 52 at two points (claws 54c', 55c), for example. That's 1q.

Further, each of the positioning members 61 and 62 is biased in a direction in which the engaging portions of the clamping plates 54 and 55, which are a part of both positioning members, with the outer periphery of the pressing member, that is, the claws 54c and 55C approach the outer periphery of the pressing member. It is biased by a coil spring 64 as a means.

The above-described positioning members 61 and 62 and the coil spring 64 constitute a positioning means for positioning the suppressing member 52 at a predetermined position on the support member 51.

Further, the positioning means, the pressing member 52, and the supporting member 5
1 and related peripheral small members constitute a clamp tM Mn that clamps the disc 5 conveyed onto the performance position, that is, the turntable 45.

The positioning means including the above-mentioned positioning members 61, 62, etc., positions the suppressing member 52 on the support member 51 (not the holder), but it positions the disk 5 inserted through the slot 3a of the housing 2 at a predetermined position on the container 22. As is clear from FIGS. 2 and 6, the positioning members 61 and 62 are arranged on both sides of the disk insertion path, and also act as positioning means for positioning the container 22 (the tray 10 and the moving member). 13. It is movable in a plane substantially parallel to the disk holding surface of the disk holding section (which together with 1/1 constitutes a disk holding section).

Holding plate 5/ which is a component of each positioning member 61, 62
Bin members 54f, 55f, 57h and 58h project from the lower surfaces of the synchronizing plates 57 and 58, respectively. These bin members 54f.

55f, 57h, and 58h extend substantially perpendicularly to the disk jI3 holding surface of the container 22, and act as engaging portions that engage with the outer periphery of the disk 5. Note that the coil spring 64 is attached to each bottle member 54. f, 55f, 57h and 5
Positioning member 61.8h approaches the outer circumference of the disk.
62 is on the rise.

Here, as shown in FIG. 6, each bottle member 54f
, 55f , 5'7h and 58h :IIintet
A taper is formed to reduce the diameter toward the disk supporting surface of 22. However, the bottle member 57h is not shown. At the time of loading or ejecting a disc, the disc 5 is clamped by the registration bin members, and at the same time as the disc 5 is clamped, the disc 5 is held by the force generated by the taper action of each bin member. is pressed toward the disk supporting surface of the container 22.

Next, a mechanism for releasing the disc clamping state by the above-mentioned positioning means will be explained.

As shown in FIGS. 2 and 6, an L-shaped small bracket 71 is fixed to the upper end of the right moving member 14, and a bin member 71 is fixed to the small bracket.
2 is provided protrudingly. This bin member 72 extends in the vertical direction, and the tray 10 is located at a predetermined position on the turntable 45, that is, the rotation center of the disk 5 supported on the container 22 that moves together with the tray is on the turntable 45. It is arranged so as to engage with the front end of a pawl 73 screwed to the tip of the arm portion 58e of the synchronizing plate 58, which is a component of the positioning means, when it reaches a position that substantially coincides with the rotation axis. There is.

That is, as the moving member 14 moves after the tray 10 reaches the predetermined position, the positioning portions 4A and 61.62 are operated, and the bin members 54f, 55f, and 57h provided in the positioning portions +A61 and 62 are moved.

58h and the outer periphery of the disc, the state of engagement between the disc 58h and the disc's outer periphery, and the state where the disc is held between the disc and the disc are released.

As is clear from FIG. 6, the container 22 is attached to the turntable 4 on the bin member 72 provided on the moving member 14
A taper is formed in which the diameter decreases in a direction approaching 5, that is, downward. The positioning means (positioning member 6
1.62W) slides in contact with the 2212 member 72 and reciprocates with the container 22 in a direction substantially perpendicular to the tray movement direction, but as described above, the bin member 72 is tapered. J: Therefore, the contact between the bottle member and the positioning means is a point contact. Therefore, the resistance caused by mutual contact becomes extremely small, and disc loading and ejecting operations become smooth. Further, the positioning means is subjected to thrust due to a component force generated by the action of the taper of the bottle member 72.

Next, each mechanism that operates when the disk 5 is inserted from the slot 3a of the housing 2 will be explained.

As shown in FIG. 13, a flexible material such as rubber is formed into a plate shape inside the disk insertion slot 3a formed in the front panel 3 that constitutes the front surface of the housing. A pair of flexible longitudinal members 76 and 77 are provided such that one end in the short direction faces each other and closes the slot 3a on the main surface. Each of the flexible longitudinal members 76 and 77 is attached to the front panel 3 at the other end in the lateral direction, that is, at the non-opposing end thereof, by a pair of fixing members 78 and 79 having an angular cross-section.

These flexible longitudinal members 76, V7 and fixed members 78.
79 constitutes a closing means for closing the slot 3a.

Each of the opposing ends of the flexible longitudinal members 76 and 77 is chamfered in an arc shape, so that the sliding contact between the respective flexible longitudinal members and the disk 5 is smooth. Further, near each opposing end of the flexible longitudinal members 76, 77, there are provided flexible portions 76a and 77a, respectively, which are formed in a compact manner and are particularly easy to bend.

By the way, the flexible longitudinal members 76 and 77 have STi properties and are grounded, for example, via fixing members 78 and 79, respectively. By doing this, static electricity can be removed from the disk 5 inserted through the slot 3a, and dust attached to the surface of the disk 5 due to static electricity is prevented from entering into the housing 2.

Note that when the material of the flexible longitudinal members 76, 77 is, for example, rubber, an effective method for imparting conductivity to the material is to mix carbon particles or the like.

As shown in FIGS. 2, 5, and 6, a lever 85 extending approximately in the front-rear direction is disposed on the right side of the bracket 12 fixed to the left end of the chassis 7, and a lever 85 is arranged on the right side of the bracket 12 fixed to the left end of the chassis 7.
5a, it is rotatably attached to the bracket 12 at a substantially central portion in the direction of the arm. This lever 85
The moving member 13 is rotated in conjunction with the moving member 13. On the other hand, a prevention member 86 is provided in front of the lever 85 so as to be movable in the vertical direction (in the direction of arrow Z and the opposite direction). A bottle 86 is attached to the left end of the prevention member 86.
A is provided in a protruding manner, and the bottle is slidably engaged with an elongated hole 85b formed at the front end of the lever 85. These lever 85 and prevention member 86 constitute a disk double insertion prevention means for preventing double insertion of disks from the slot 3a. That is, lever 8
As the prevention member 86 moves up and down with the rotation of the slot 3, the prevention part 86b provided on the prevention member
3a to prevent the insertion of a disk from the slot 3a.

By the way, the lever 85 is designed to be linked to the movement of the moving member 13, which is a component of the disk transport mechanism described above, and in this way, a part of the power for transporting the disk is transferred to the disk double insertion prevention means. By using this as the power to drive the disk double insertion prevention means, a special drive mechanism for driving the disk double insertion prevention means is not required. Therefore, it becomes easier to downsize the player metal body and reduce costs.

As shown in FIGS. 2, 6, and 14 (al, (C)), the disk 5 inserted through the slot 3a is placed in the deep part of the housing 2 on the disk insertion path at a predetermined position on the container 22. A guide member 91, which acts as a guide means for guiding the container 22 to the position, is disposed to face the disk supporting surface of the container 22, and is fixed, for example, to the lower surface of the tray 10.The guide member 91 is made of, for example, a bent steel plate. A tapered portion 91a is formed at the front end thereof so as to approach the disk supporting surface of the antenna 22 in the disk insertion direction.

As shown in FIGS. 2, 6 and 14(a), 1
- The rear end of the ray 10 is provided with a disc 5 inserted through the slot 3a and positioned at the predetermined position on the container 22 so as to engage with the outer periphery of the disc when the disc 5 is pushed slightly in the disc insertion direction. A play start switch 93 is provided. However, this play start switch 93 is provided with an intermediate member 94 (also shown in FIG. ) to engage with the outer periphery of the disk.

As shown in FIG. 2, a support shaft 96 extending in the vertical direction is fixed to the lower surface of the right end of the main body 1Qa of the tray 10. As shown in FIG. An arm 97 formed in a substantially dogleg shape is rotatably attached to the support shaft 96 at substantially the center thereof. Bins 97a, 97 are provided on the lower surface of both ends of the arm 97.
The bins 97a on the left end side can be engaged with the outer periphery of the disk 5 positioned on the container 22. A switch holding member 99 that holds the detection switch 98 so as to be able to engage with the left end portion of the arm 97 is also swingably attached to the support shaft 96 . These switch holding members 9 are connected to the second switch by a coil spring (not shown).
A pie spacing is applied in the clockwise direction in the figure. The arm 97 engaged with the switch holding member 99 via the detection switch 98 is also given a repulsive force in the same direction as the switch holding member 99 by this coil spring (not shown).

The above-mentioned support shaft 96, arm 97, detection switch 98,
The switch holding member 99 and the peripheral small members related thereto constitute a mechanical detection means for detecting that the disk 5 is positioned on the container 22. Further, when the tray 10 moves a predetermined amount backward from the position shown in FIG. 2 and reaches a predetermined position, the arm 97
The bin 97b protruding from the right end of the chassis 7
It is adapted to abut against a cut-and-raised portion 7f provided near the first portion.

As shown in FIGS. 6 and 11, Killeridge 34
A detection switch 101 is provided on the right side of the drum to detect when the carriage has returned to its home position, that is, the rest position before the start of the performance. This detection switch 101 is fixed to a support member 28 that supports a carriage 34, etc., and a protrusion 31 (4) protruding from a slider 31, which is a component of the carriage 34, is engaged with an actuator 101a of the detection switch. A detection signal is emitted depending on the detection.

As shown in FIG. 4, a detection switch 10 is provided at the right end of the chassis 7 to detect that the tray 10 has reached its forward movement limit position by engaging with a portion of the tray 10.
3 is fixed.

Further, as shown in FIG. 6, a movable member 14 is located at the right end of the chassis 7 and behind the detection switch 103.
A detection switch 1 detects that the movable member has reached the rearward movement limit position by engaging with a portion of the movable member, and therefore that disc loading and clamping have been completed.
04 is fixedly installed. However, this detection switch 104
is attached to the chassis 7 via a bracket 105.

Note that each signal emitted from the aforementioned operation button group 6, play start switch 93, detection switches 98, 101, 103, and 104 is transmitted to a control section (not shown) disposed at a predetermined position within the housing 2. Ru. The motors 2o and 38 and the spindle motor 46 operate at timings to be described later by operation signals sent from the control section in response to these signals.

Next, the operation of the in-vehicle autoloading disc player configured as described above will be briefly explained along with the playing procedure.

Note that FIGS. 1 to 5 show the initial state of the disc player before playing.

First, insert the disk 5 into the slot 3 as shown in FIG.
Insert into the housing 2 from a. At the same time as the disk 5 is inserted through the slot 3a, the disk 5 is inserted into the bin member 54 provided on the positioning member 61, 62 shown in FIG. 2, for example.
f and 55f, and advances while pushing both positioning members 61 and 62 left and right. When the center of rotation of the disk 5 crosses a line connecting the axes of the left and right bin members 54f and 55f, both the bin members 54f and 55f are biased toward the outer periphery of the disk, so even if you release your hands, they will not move. The disc 5 is retracted into the housing 2. Further, at this time, the guide member 91 effectively guides the disk 5, and the disk 5 is positioned at a predetermined position on the container 22. In addition, the disk 5 has four wooden bin members 54f and 55f.
, 57h, and 58h, the disk, once positioned, will not be displaced by external vibrations such as vehicle body vibrations.

As shown in FIGS. 15(a) and (Fl), at the same time as the disk 5 is positioned on the container 22, the outer periphery of the disk 5 engages with the left end bin 97a of the arm 97 and the disk 5 is positioned on the container 22. The arm is rotated, for example, counterclockwise in FIG. 15(a). Therefore, the left end of the arm 97 engages with the detection switch 98 to operate the detection switch (state +b+ in FIG. 15). Then motor 2
0 starts rotating, and the moving member 14 is driven backward via the dynamic J transmission mechanism 19. However, as is clear from FIGS. 4 and 6, the pin 26 protruding from the swinging end of the lever 25 swingably provided on the tray 10 is inserted into the cam groove formed in the moving member 14. By engaging 148, moving member 14 cannot move relative to tray 10, and thus container 22 is locked relative to tray 10. Therefore, the rotation of the motor 20 only causes the moving member 14.13, the tray 10, and the container 22 to move rearward. Note that the above-mentioned bottle 26 is connected to the cam groove 1.
48 while sliding over the right end of the chassis 7.

Almost at the same time when the tray 10 and the container 22 move backward by a predetermined amount and the disk 5 is stored in the housing 2, the bin protruding from the right end of the arm 97 opens as shown in FIG. 15(C). 97b is the cut-and-raised portion 7 of the chassis 7
Abuts on f. In this way, Bin 97. b comes into contact with the cut-and-raised portion 7f, so that the engagement state between the arm 97 and the detection switch 98 is maintained. Therefore, the motor 20 continues to rotate, and the disk 5 is further transported rearward. Along with this, the arm 97 is moved to the first position by the cut-and-raised portion 7 [
The arm 97 is rotated counterclockwise in FIG. 5(C), and the engagement state of the arm 97 with the disk 5 is released. In this state, the rotation center of the disc 5 is at the turntable 4.
It almost coincides with the rotation axis of No. 5.

At the same time as the engagement between the arm 97 and the disk 5 is released, the bin 26 leaves the cam groove 14e and enters the four portions 7C formed in the chassis 7, as shown in FIG. This locks the tray 10 with respect to the chassis 7 and therefore the housing 2, and at the same time locks the tray 10 with respect to the moving member 14.
locked state with respect to the tray 10, therefore, the container 2
The locked state of the second tray 10 is released.

In this way, only the movable members 14 and 13 continue to move backward until the state shown in FIG. 17 is reached. That is, the bottle 22a protruding from the container 22 slides along the cam holes 13d and 14d provided in the moving member 13.14, respectively, and the first
As shown in FIG. 8, the container 22 moves downward while carrying the disk 5. Therefore, the disc 5 is placed on the turntable 45. At this time, the disk supporting surface of the container 22 separates from the disk 5, and the disk 5 becomes rotatable together with the turntable 45.

Also, by moving only the movable members 13 and 14 backward, the bottle 51a protruding from the support member 51 of the clamp mechanism is
By sliding along cam holes 131 and 140 formed in the movable members 13 and 14, respectively, the suppressing member 52 approaches the disk 5 together with the supporting member 51, as shown in FIG.
Disk 5 is clamped. Note that the movement stroke of the support member 51 in the vertical direction is approximately 8.5 mm, and
The downward movement stroke of the container 22 is approximately 6°511 m. The movement stroke of the container 22 is 2 mm smaller than the movement stroke of the support member 51, but this is because the cam holes 13d, 14 (
This result is due to the fact that I has a horizontal portion in the middle of the cam hole.

When the disk 5 is clamped and the movable member 14 reaches the rear limit position, a portion of the movable member engages with the detection switch 104 to operate the detection switch, as shown in FIG. , the motor 20 is stopped. It is not possible to play in this state. Note that the moving member 13
The lever 85 is rotated in conjunction with the rearward movement of the disc, and therefore the prevention member 86 prevents double insertion of the disc from the disc insertion slot 3a.

Of the operation button group 6 arranged on the front panel 3,
When the play start switch 6a is pressed and an operation signal for performance is issued, the turntable 45 rotates and at the same time the carriage 34 begins to operate and the performance begins.

When the performance ends and the carriage 34 reaches the limit position of movement, the carriage 34 and turntable 45 are stopped, and at the same time, the motor 20 starts a reversing operation. Therefore, the tray 10, the movable members 13, 14, the container 22, and the suppressor (52nd) are returned to the rest position before playing by following a process completely opposite to the operation at the time of disc loading described above. Forced to return to home position.

In this way, the disk 5 is recovered.

In addition, when it is desired to play again the disc 5 which has been played once, the play start switch 93 is activated by slightly pushing the disc in the disc insertion direction, and the play is performed again.

Although the autoloading disc player is shown for use in a vehicle, it goes without saying that it can also be used indoors for home use.

Effects As detailed above, in the autoloading disc player according to the present invention, the slot-in type makes it easy to load discs, and the overall compactness makes it suitable for outdoor use. be.

Particularly, in the autoloading disc player according to the present invention, the support member (51) rotatably supports the suppression member (52) that cooperates with the turntable (45) to perform a disc clamping action. It is attached to the disk holder. The support member (5
1) is provided on the housing side in a normal play A7, but if it is provided on the housing side, the operation of the disk holding part that is movable with respect to the housing and the supporting member provided on the housing as a fixed side A timing mechanism is required to synchronize the operation of the In the autoloading disc player according to the present invention, the supporting member (51) is installed on the movable disc holder, thereby eliminating the need for the timing mechanism. Therefore, it is easier to downsize the brake metal body, and the number of parts is also reduced, making it possible to reduce costs.

Further, in the autoloading disc player according to the present invention, the suppressing member (52) is replaced by the supporting member (51).
Positioning means is provided for positioning at a predetermined position on the top. Therefore, no noise is generated due to the pressing member (52) and the supporting member (51) supporting the pressing member colliding with each other due to external vibrations or the like. In other words, the vibration resistance of the clamp 14N is good.

Further, in the autoloading disc player according to the present invention, the positioning means is the pressing member <52>.
It is also attached to the support member (51). In this way, by supporting the suppressing part 0 (52) and the positioning means with a single member called the support member (51), compared to the case where the suppressing member and the positioning means are each supported by separate members. This reduces the number of parts. Therefore, it is easier to reduce the size and cost of the player as a whole.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view showing the whole of an in-vehicle autoloading disc player 17 according to the present invention, and FIGS. 2, 3, 4, and 5 are plan views of the internal structure of the autoloading disc player. Figure 6 is a perspective view of the main part of the internal structure, Figures 7 to 14 (ω. +tn, (C) is a detailed view of a part of the internal structure. , Fig. 15(a). Fig. 15(a), Fig. 15(c) to Fig. 18 are diagrams for explaining the operation of the autoloading disc player. Description of symbols of main parts 2...Housing 2a, 10d...Opening 2b...Lid 3...Front panel 3a... Slot 5...Disk 6
......Operation button group 6a...Play start switch 7...
・Chassis 7a... Main body 7b... Sub-chassis 7C... Recessed portion 7f... Cut-and-raised portion 8... Vibration isolating member 10... ...Tray 10
a...Main body 10b...Side wall member 10
c, 10e, 17c, 17d, 22a. 26.51a, 54a, 54e, 55a. 55e, 57a, 58a, 58f, 85a. 86a, 97a, 97b・----bin 10f, 10
0.13a, 13b, 14a. 14, b, 14f', 31b, 57f, 57a. 580.85b... Long hole 12.105... Bracket 13.14... Moving member 13d, 13g, 14d, 14G... Cam hole 1
4G...Rack section 14. e...Cam groove 15...Guide bar 17...Interlocking shafts 17a, 17b...Arm 19...Power transmission mechanism 19a... ...First stage gear 19b...Last stage gear 20...Motor 20a...A-me 22...Container 23... Protection 19
25.85... Lever 28.51... Support member 29... Vibration isolating members 30a, 30b... Guide shaft 31...
...Slider 31a, 31C...Screw 31e...Protrusion 33...Case 33
El... Objective lens 33b... Notch 34... Carriage 35... Offset screw 35a... Threaded portion 35b...・Circular head 37...Screw shaft 38...Motor 39...Pulley 41...
...Plate spring 42 ...Half nut 45 ...Turntable 46 ...Spindle motor 46a ...Output shaft 4.6 b ... Bearing portion 47a...Holding 11186 4Lb...
... Idler 52 ... Pressing member 52a ... Magnet 52b ... Buffer member 52C ... Circumferential groove 54.55 ... Clamping Plates 54b, 55b...Circular parts 54c, 55c...Claws 54f, 55f, 57h, 58h, 72...Pin members 57c, 57d, 57e, 58c, 58d. 5 White e...Arm portion 57.58...Synchronization plate 61...First positioning member 62...Second positioning member 64...Coil spring 71...Small bracket 76.77...Flexible longitudinal member ゛76a, 77
a...Flexible portion 78, 79...Fixing member 86...Preventing member 86b...Preventing portion 91...Guiding member 91a. ...Tapered portion 93...Play start switch 9/I...
...Intermediate member 96...Support shaft 97...
... Arm 98.10.1, 103, 104 ... Detection switch 99 ... Switch holding member 101a ... Actuator Applicant Pioneer Corporation Agent Patent attorney Motohiko Fujimura Continued from page 1 0 Inventor 2) Koji @ Inventor Back 1) Kenji Tokorozawa Jikaen 4-26101 Pioneer Co., Ltd. Tokorozawa Factory

Claims (1)

[Claims] a housing having a slot into which a disc to be played is inserted; a playing means disposed in the housing including a turntable; and a disc carrying part for holding the disc in a predetermined position and transporting the disc to a playing position. including a transport mechanism and a clamp mechanism that clamps the disc transported to the performance position,
The clamping mechanism includes a pressing member that cooperates with the turntable to perform a disk clamping action, and a pressing member that is movable between a clamped position and a non-clamped position with respect to the turntable, and that is capable of freely rotating the suppressing member. and a positioning means for positioning the pressing member at a predetermined position on the support member, the support member being attached to the disk supporting part, and the positioning means being provided on the support member. An auto-loading disc player characterized by: