JPS60214469A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To attain miniaturization as the entire player and cost reduction by using a disc positioning means in common for a positioning means of a pressing member so as to reduce remarkably number of components. CONSTITUTION:In loding a disc into a housing 2, the disc is progressed while pushing aside positioning members 61, 62 to the right and left and positioned on a container 22. A motor 20 is driven so as to move moving members 14, 13, a tray 10 and the container 22 backward, the pin 22a of the container 22 is slided along a cam hole of the moving members 13, 14, the container 22 is moved downward and the disc is placed on a turntable 45. The pin 51a of the support member 51 of the clamp mechanism is slided along the cam hole of the moving members 13, 14 and the pressing member 52 clamps the disc.

Description

DETAILED DESCRIPTION OF THE INVENTION 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 widely used in ordinary households.

However, such conventional disc players are designed with the assumption that they will be installed in quiet places indoors, and therefore are not suitable for outdoor use. Requirements for a disc player used outdoors include ease of loading discs, overall compactness, and good vibration resistance and dust resistance.

11 animals 11 The object of the present invention is suitable for outdoor use,
In particular, it is an object of the present invention to provide a disc player that is easy to downsize and reduce costs.

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 carrier for holding the disc in a predetermined position and transporting the disc to the playing position. including a disc transport mechanism and a clamp mechanism that clamps the disc transported to the performance position,
The clamping mechanism includes a suppressing member that cooperates with the turntable to perform a disk clamping action, and a suppressing member that is movable between a clamp position and a non-clamping position with respect to the turntable, and that rotates the suppressing member. and a positioning means for positioning the suppressing member at a predetermined position on the support member, the positioning means positioning the disk inserted through the slot at the predetermined position of the disk holding part. It is characterized by

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An in-vehicle autoloading disc player as an embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 indicates the entire auditioning 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 into which a disc 5 to be played is inserted. However, the left and right direction referred to herein refers to the front direction indicated by arrow Y. Therefore, the direction of the arrow X in the figure indicates the left side, and the direction of the arrow Z indicates the upward direction. In addition,
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 playback.

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-shield 17-7b fixed to the front end of the main body. As shown in FIGS. 1 and 12, the shifter is supported by a 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 (described later), in this case, in a front-back direction (direction of arrow Y and the opposite direction). As is particularly clear in FIG.
0 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 shifter, and a bin 10c 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 1o, 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 is formed in the moving member to extend in the front-rear direction.
is supported by being slidably engaged with a bin 10c provided at the left end of the tray 10. The right end of the tray 10 is slidably engaged with and supported by a guide bar 15 at two support points spaced apart in the tray movement direction, that is, the front-rear direction. At the rear end of the tray 10 is an interlocking shaft 1 with arms 17a and 1711 fixed to both ends.
7 is provided extending in the left-right direction, and the tray 1
It is rotatably supported at 0. Arms 17a, 17b
Bottles 17c and 17d are protruded from the inner surface of the distal end of the movable member 13.1'4, respectively, and the bins are inserted into long holes 13b and 14b formed in the rear end of the movable member 13.1'4 and extending in the vertical direction. They are slidably engaged with each other. A power transmission mechanism 1 consisting of a plurality of gears rotatably supported on the right end of the shifter
9 is provided. A motor 20 is fixedly installed in front of the power transmission mechanism 19, and as is particularly clear in FIG. 4, a worm 20a is fitted to the output shaft of the motor.
is meshed with the first stage gear 19a of the power transmission mechanism 19.

Also, power transmission 4! The final stage gear 19b of the gear 19 is meshed with a rack portion 14d formed at the lower end of the left side of the moving member 14 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 part 14d
The engagement position with the guide bar 15 is near the midpoint of the two support points at which 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 for holding the disc 5 is arranged below the tray 10 in a position sandwiched by the moving members 13, 14.

The container 22, the tray 10, and the moving members 13 and 14 constitute a disk holding section. It should be noted that a protective film 23 made of felt or the like is attached to the disk supporting surface of the container 22 in order to avoid direct contact between the disk supporting surface and the disk 5. A total of four bins 22a, one pair each at both left and right ends of the container 22, are provided extending in the left and 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.

After passing through the elongated hole 10f, the bottle 22a of the container 22 is slidably engaged with cam holes 13d and 14d formed in the moving member 13.14, respectively.

The cam holes 13d and 14d have teniper portions that are inclined upward in the disk insertion direction, that is, from the front to the rear, that is, in the direction in which the container 22 moves away from the turntable, which will be described later.
It is comprised of a horizontal part that extends rearward and continuous with the end of the tapered part in the disk insertion direction, that is, the rear end, and a tapered part that extends parallel to the tapered part and continues with the rear end of the horizontal part. That is, the container 22 is configured to move up and down as the moving members 13 and 14 move in one direction back and forth.

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 22 is placed next to the tray 10.
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, and when the tray 10 reaches the predetermined position, 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.
The release means 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 other hand, a cam groove 14e is formed in the right moving member 14 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 bin 2G that can be engaged with the recess 7C and the cam groove 14e projects from the swinging end of the lever. That is, the pin 26 is adapted to selectively engage with the recess 7C and the cam groove 14e. In addition, the moving member 14
is formed so as to extend forward continuously from the cam groove 140, and is slidably engaged with the bin 26, allowing movement of the movable member 14 after the tray 10 reaches the predetermined position on the turntable. A long hole 14 is formed.

These recessed portions 7c, cam grooves 14e1, 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, the container 22 is unlocked from the tray 10. In addition, locking/unlocking means for locking the tray 10 to the housing 2 is configured.

Further, the lock/release means, the chassis 7, and the tray 1
0, the container 22, the movable members 13, 14, and the driving force applying means consisting of the power transmission mechanism 19, the motor 20, etc., move the disc 5 inserted through the slot 3a of the housing 2 to the playing position, that is, the turn. A disk transport mechanism is configured to transport the disc onto the table.

Next, a description will be given of the playing means provided in the housing 2 for playing a disc.

As shown in FIG. 6, a supporting member 28 having a substantially U-shape as a whole is disposed on the lower surface of the shifter 11, which is a part of the disk transport mechanism, and is made of flexible rubber. It is attached to the chassis 7 via four vibration isolating members 29 made up of, for example. Two guide shafts 30a and 30b are fixed to the support member 28 and extend in parallel to the rotating surface of the turntable, in this case in the front-rear 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 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, as shown in FIG. 2, a part of the disk transport mechanism is placed on the tray 10, and the disk transport mechanism is in the pre-disk transport position (the state shown in FIG. 2).
A circular opening 10d is formed which faces the objective lens 33a when the main 1/ridge 34 is at the home position, that is, at a rest position before playing. This opening 10d is provided to wipe off dust and the like adhering to the surface of the objective lens 33a without removing the disk transport mechanism. Therefore, although I will not go into details,
An opening 10d is also provided in a member that constitutes a part of the disc transport mechanism and is interposed between the tray 10 and the objective lens 33a when the disc transport mechanism and the key 17 ridge 34 are in the pre-performance position. Needless to say, an opening similar to that is formed. Further, as shown in FIG. 1, a circular opening 1 2a is also provided on the upper surface of the housing 2.
is formed. This opening 2a is also the opening 1 described above.
Similar to Q d, when the disc transport mechanism and carriage 34 are in the static position before playing (up), the objective lens 3
3a. A lid 2b that can close the opening 2a is also screwed to the housing 2. By providing the housing 2 with one step of such openings, the objective lens 33a can be cleaned without removing the housing. Nad
3. 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.

As shown in FIGS. 9 and 10, the front lever has an elongated hole 31 extending in the left-right direction in a plane perpendicular to the slider movement direction at the end of the slider 31 in the movement direction.
b is formed. The elongated hole 31b is provided corresponding to one end of rotation of the case 33, and the elongated hole has a threaded portion 35.
a is a circular head 35 of an offset screw 35 that is screwed into the case 33;
b is fitted. As the name suggests, the threaded part 3 of the biased screw 35
The axial center of 5a is offset with respect to the axial center of the circular head 351). However, by rotating the biasing screw 35, the case 33 is rotated little by little around the support screw 31a. An adjusting means for adjusting the rotation angle position of the case 33, that is, adjusting the so-called tangential direction of the optical pickup means (not shown) provided in the coos, is provided by the elongated hole 31b into which the elongated hole 31b is fitted. It is configured. 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 arranged parallel to the guide shafts 30a and 30b is rotatably provided at both ends of the support member 28. A motor 38 is disposed in front of the shirt 1-37, and the screw shaft 37 is rotationally driven by the motor via a power transmission means including a pulley 39 and the like.
As is particularly clear in FIG. 1, a leaf spring 41 is fixed to the slider 31 in the form of a cantilever, and a half nut 42 screwed onto the screw shaft 37 is fixed to the free end of the leaf spring. ing.

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 peripheral small members that connect and cover these. has been done.

A turntable 45 is disposed on an extension of the movement trajectory 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 into which a part of the turntable 45 and the spindle motor 46 facing the case 33 can be inserted. 33b is formed. 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 rotatably supported by a holding mechanism 478 is brought into contact with the output shaft 46a of the spindle motor 46.

These holding mechanism 478 and idler 47b constitute a close contact means for bringing the output shaft 46a and the bearing portion 46b that supports it into close contact. Normally, a gap of about 10 μm occurs between the output shaft 46a and the bearing portion 46b, but by providing the above-mentioned close contact means, this gap is corrected and the rotation of the output shaft 46a and therefore the turntable 45 is accurate. And it will be smooth.

The above-mentioned support member 28 and guide shafts 30a, 3Q
b, the carriage 34, the drive mechanism including the motor 38 (driving the closing ridge 34), the close contact means consisting of the turnboop pull 45, the spindle motor 46, the idler 47b, etc., and 3U'I related to these. A playing means for playing the disc is constituted by the peripheral small members.

Here, the method for attaching the support member 28 to the seats 17-7 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 are arranged are centered on the midpoint between the midpoint of the movement trajectory of the center of gravity of the carriage 34 and the rotation axis of the turntable 45. They are placed at equal distances on 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 A-loading disc player is mounted. By arranging the points as described above and providing two vibration isolating members at the support points, the vibration isolating effect can be significantly improved. The reason why the support point of the support member 28 is set as described above is to take into consideration the change in the center of gravity of the playing means due to the movement of the carriage 34.
For simplicity, for example, a support point of the support member 28 is provided at an equal distance from a circular arc centered on the center of gravity of the playing means when the carriage 34 is at the midpoint of the movement trajectory, and a vibration isolating member is attached to the support point. Even if 29 is provided, a great vibration damping effect can be obtained.

Next, a description will be given of a clamping mechanism for lifting and ramping 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 above the container 22 at a position sandwiched between the moving members 13 and 14. A total of four wooden bins 51a are provided at both left and right ends of the support member 51.
are provided extending in the left and right direction. The support member 51 is configured such that each of the bins 51a slidably engages with four elongated holes 10 (I) formed in the tray 10 extending in the vertical direction, so that the support member 51 can be attached to the tray 10 in a direction perpendicular to the tray movement direction. That is, the bin 51a of the support member 51 is supported movably within a predetermined range in the vertical direction.
0 long hole 10 (+), and the moving part 01
3. Cam holes 13111 and 14g formed in 14 respectively
is slidably engaged with. The cam holes 13o and 14 (l are linearly inclined upward in the direction in which the support member 51 leaves the turntable 45, that is, from the front to the rear. In other words, the cam holes 13o and 14 (l) are inclined linearly upward in the direction in which the support member 51 leaves the turntable 45, that is, from the front to the rear. The support member 51 is configured to move up and down relative to the turntable 45.

Note that the cam holes 13d formed in the moving members 13 and 14
, 13111, 146, and 14 (), the cam holes 13d and 14d that engage with the bin 22a of the container 22 are referred to as first cam holes;
The cam holes 13 (1 and 14 (l) are referred to as second cam holes. The total length of the first cam holes 13 d and 14 d in the disk insertion direction and the second cam holes 13 g and 14 ( The total length in the disk insertion direction is approximately equal.

The support member 51 is rotatably provided with a pressing member 52 that cooperates with the turntable 45 to perform a disk clamping action. Note that the position shown in FIG.
1 unclamped position. Further, the position of the support member 51 when the support member 51 moves downward by a predetermined amount and the pressing member 52 comes into contact with the surface of the disk placed on the turntable 45 is referred to as a clamp position. Support member 5
1 moves between the clamped position and the unclamped position. As also shown in FIG. 3, the suppressing member 52 has a ring-shaped magnet 52a, and the magnetic force of the magnet forms a disk clamp.

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, and when the supporting member 51 is in the non-clamped position, the suppressing member 52 is supported by the magnetic force of the magnet 1-528. It is adapted to be attracted to the member 51. Further, as shown in FIG. 6, a buffer portion IJ made of felt or the like is provided on the upper surface of the suppressing member 52.
52b is attached to prevent the upper surface of the suppressing member 52 from coming into direct contact with the housing 2 due to vibration of the supporting member 51 when the supporting member 51 is in the non-clamped position. However, the loose WJ member 52 is not limited to the upper surface of the pressing member 52, but may be provided on a part of the housing 2 that faces the pressing member 52 when the supporting member 51 is in the non-clamped position.

As is particularly clear in FIG. 2, a pair of left and right clamping plates 54 and 55 are arranged on the lower surface of the support member 51 so as to hold the pressing member 52 in a clamping manner. The support member 5 is movable in the direction.
It is attached to 1. A circumferential groove 520 (
Circular arc portions 54b and 55b are formed to be fitted into the inner circumferential grooves 54b and 55b of the suppressing member 52.
Two protruding claws 540 and 550 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 58G, 58.
d and 58e. A long hole 57 is formed at the tip of the arm portion 57C, and a bottle 58t protruding from the tip of the arm portion 58C is slidably engaged therein.

Furthermore, elongated holes 57a and 58() are formed at the tips of the arm portions 57d and 58d that protrude approximately forward, and the two step holes are connected to the bins 54e protruding from the clamping plates 54 and 55, respectively.
and 55e, respectively, in a slidable manner. That is,
The synchronizing plates 57 and 58 are configured to synchronize the operation of the clamping plates 54,55. Note that the clamping plate 54 and the synchronizing plate 57 are collectively referred to as a first positioning member 61, whereas the clamping plate 55 and the synchronizing plate 58 are collectively referred to as a second positioning member 62. That is, these pair of positioning parts 061, 62 are movably provided in a plane substantially perpendicular to the rotation axis of the pressing member 52, and each engages with the outer periphery of the pressing member 52 at, for example, two claws 54c, 55c). It is possible.

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 move the suppressing member 52 to the supporting member 51. Positioning means for positioning E at a predetermined position is configured. Further, the positioning means, the pressing member 52, the supporting member 51, and the peripheral small members related thereto constitute a clamping mechanism for clamping the disc 5 conveyed to the performance position, that is, the turntable 45. ing.

The positioning means including the above-mentioned positioning members 61, 62, etc. not only positions the suppressing member 52 on the support member 51, but also positions the disk 5 inserted through the slot 3a of the housing 2 at a predetermined position on the combiner 22. It also acts as a positioning means. 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 the container 22 (together with the tray 10 and the moving members 13, 14 constitutes a disk carrier) It is movable in a plane substantially parallel to the disk supporting surface of the disk.

Bin members 54f, 55f, 57h and 58h project from the lower surfaces of the clamping plates 54, 55 and synchronizing plates 57 and 58, which are constituent members of each positioning member 61, 62, respectively. These bin members 54f.

55f, 57h, and 58tl extend substantially perpendicularly to the disk supporting surface of the container 22, and act as engaging portions that engage with the outer periphery of the disk 5. In addition, the coil spring 64 has a positioning portion in the direction in which each of the bin members 54f, 55r, 57h, and 58h approaches the outer circumference of the disk.
is energized.

Here, as shown in FIG. 6, each bottle member 54f
, 55f, 57h, and 58h are tapered to reduce in diameter toward the disk supporting surface of the container 22.

However, the bottle member 57h is not shown. Disc 5 when loading or ejecting the disc.
is held by each of the bin members, and at the same time as the disk 5 is held, the disk 5 is pressed toward the disk holding portion of the container 22 by a component force generated by the action of the taper of each pin member. It is.

Next, a description will be given of l[, which causes the disc clamping state by the above-mentioned positioning means to be released.

As shown in FIGS. 2 and 6, a small bracket 71 shaped like a single character is fixed to the upper end of the right moving member 14, and the small bracket 71 has a bin member 71 fixed thereto.
2 is provided protrudingly. This bin member 72 extends in the vertical direction, and the tray 10 is at a predetermined position on the turntable 45, that is, the rotation center of the disk 5 supported by the container 22 that moves together with the tray is the rotational center of 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 axis.

That is, as the moving member 14 moves after the tray 10 reaches the predetermined position, the positioning members 61, 62 are operated, and the bin members 54f, 55f, 57h provided on the positioning members 61, 62 are moved.

58h and the outer periphery of the disk, that is, the disk clamping condition is released.

As is clear from FIG. 6, the bin member 72 stacked on the movable member 14 is formed with a taper that decreases in diameter in the direction in which the container 22 approaches the turntable 45, that is, in the downward direction. The positioning means (consisting of positioning members 61, 62, etc.) for positioning the disk 5 at a predetermined position on the container 22 slides while contacting the pin member 72, and moves together with the container 22 in a direction substantially perpendicular to the tray movement direction. However, since the pin member 72 is tapered as described above, the contact between the pin 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 moved by the component force generated by the taper action of the pin member 72.
It will receive W force.

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, inside the disk insertion slot 3a formed in the front panel 3 constituting the front part of the housing, a flexible material such as rubber is formed into a plate shape. A pair of flexible longitudinal members 76 and 77 are provided, which are arranged such that one end thereof in the hand direction faces each other and close the slot 3a at 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, 77 as well as the 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. Moreover, near each opposing end of the flexible longitudinal member 76, 77, there are stepped flexible parts 76a and 77a, which are formed thin and are particularly easy to bend.

Incidentally, the flexible longitudinal members 76 and 77 are electrically conductive 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 FIG. 2, FIG. 5, and FIG.
A lever 85 extending approximately in the front-rear direction is arranged on the right side of the bracket 12 fixed to the left end of the shifter, and is rotatably attached to the bracket 12 at approximately the center in the longitudinal direction by a pin 85a. It is being This lever 85 is configured to rotate 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 8 is attached to the left end of the prevention member 86.
6a is provided in a protruding manner, and the bottle is slidably engaged with an elongated hole 85b formed in 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, as the prevention member 86 moves up and down as the lever 850 rotates, the prevention portion 86t provided on the prevention member crosses the slot 3a and prevents the insertion of the disk from the slot 3a. -ing

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 driving power, a special drive mechanism for driving the disk double insertion prevention means is not required. Therefore, it is easier to downsize and reduce the cost of the entire player.

As shown in FIG. 2, FIG. 6, FIG. 14(a), and (C), the disk 5 inserted through the slot 3a is placed in the deep part of the housing 2 on the disk insertion path in the container 22--. A guide member 91, which acts as a guide means for guiding J2 to a predetermined position, is arranged to face the disk supporting surface of the container 22, and is fixed, for example, to the lower surface of the trays 1 to 10. The guide portion 91 is formed by bending a steel plate, for example, and has a tapered portion 91a that is inclined toward the disk supporting surface of the container 22 in the disk insertion direction at the front end of the sled.

As shown in FIGS. 2, 6, and 14 (al), the disk 5 that has been pushed through the slot 3a and positioned at the predetermined position on the container 22 is inserted into the rear end of the tray 10 in the disk insertion direction. A play start switch 93 is provided so as to engage with the outer periphery of the disc when pressed slightly.However, this play start switch 93 is provided in front of the play start switch in the front-rear direction. It engages with the outer periphery of the disk via an intermediate member 94 (also shown in FIG. 14(b)) which is movably provided and provided with a forward spiral.

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 . This switch holding member 99 is held in place 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@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
A bottle 97b protruding from the right end of the chassis 7 is configured to abut against a cut-and-raised portion 7r provided near the rear end of the chassis 7.

As shown in FIGS. 6 and 11, the carriage 34
A detection switch 101 is provided on the right side of the player for detecting that the carriage has returned to its home position, that is, the rest position before the performance starts. This detection switch 1
01 is fixed to a support member 28 that supports a carriage 34 etc., and a slider 3 which is a component of the carriage 34.
A protrusion 31e protruding from the detection switch 1 engages with an actuator 101a of the detection switch to generate a detection signal.

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 for detecting that the movable member has reached the rearward movement limit position by engaging a portion of the movable member, and therefore that disk zeroing and clamping have been completed;
04 is fixedly installed. However, this detection switch 104
is attached to the chassis 7 via a bracket 105.

Incidentally, 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 20 and 38 and the spindle motor 46 operate at timings 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 from the slot 3a, the disk 5 is inserted into the bin portion U3 provided in the positioning member 61, 62 shown in FIG. 2, for example.
4f and 55f, and advance while pushing both positioning members 61 and 62 left and right. Left and right bin members 54f
When the center of rotation of the disk 50 crosses the line connecting the axial centers of the disks 55f and 55f, both the bin members 54f and 55f are biased in the H direction toward the outer periphery of the disk. be drawn into. Also, 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. Note that the disk 5 has four 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 15(b), the disk 5
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 pin 97a of the arm 97, and 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 and operates the detection switch (state shown in the 15th appearance). Then, the motor 20 starts rotating and the moving member 14 is driven backward via the power transmission mechanism 19. However, as is clear from FIGS. 4 and 6, the lever 2 swingably provided on the tray 10
5 is engaged with the cam groove 14e formed in the moving member 14,
The moving member 14 is movable relative to the tray 10 so that the container 22 is locked relative to the tray 10. Therefore, due to the rotation of the motor 20, the moving member 14
．． 13, tray 10, and container 22 are only moved rearward. Note that the bin 26 slides on the right end of the chassis 7 while being engaged with the cam groove 148.

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, the bottle 97b is cut and raised at the part 7.
By coming into contact with [, 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 15th position by the cut and raised portion 7r.
The arm 97 is rotated counterclockwise in FIG. 9C, and the engagement state of the arm 97 with the disk 5 is released. In this state, the center of rotation of the disc 5 is at the turntable 45.
It almost coincides with the axis of rotation.

At the same time as the engagement between the arm 97 and the disk 5 is released, the bin 26 leaves the cam groove 148 and enters the recess 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 opens along the cam holes 13d and 14d provided in the moving member 13.14, respectively, and opens the first bottle 22a.
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 moving part 013.14 backward, the bottle 51a protruding from the support member 51 of the clamp mechanism is
The suppressing member 52 slides along the cam holes 13o and 14g formed in the movable members 13 and 14, respectively, and approaches the disk 5 together with the supporting member 51, as shown in FIG. 18, and the disk 5 is clamped. The movement stroke of the support member 51 in the vertical direction is approximately 8.5-+n+n, and the movement stroke of the container 22 in the vertical direction is approximately 6.degree. 5mn+. The movement stroke of the container 22 is 2Ill longer than the movement stroke of the support member 51.
Ill is smaller, but this is due to the cam hole 13d in which the bottle 22a protruding from the container 22 is slidably engaged.
, 14d have a horizontal portion in the middle of the cam hole.

When the movable member 14 reaches the rear limit position at the same time as the disk 5 is clamped, a part of the movable member engages with the detection switch 104 to operate the detection switch, as shown in FIG. Motor 20 is stopped. Performance is possible 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 kit? The ridge 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 moving members 13, 14, the container 22, and the pressing member 52 are returned to the rest position before playing through a process that is completely opposite to the operation at the time of disc loading described above. Further, the carriage 34 is also returned to its 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 A-loading disc player according to the present invention, the slot-in type facilitates disc loading, and the overall compactness makes it suitable for outdoor use. be.

Particularly, in the autoloading disc player according to the present invention, positioning means is provided for positioning the pusher LL member (52), which performs a disc clamping action in cooperation with the turntable (45), at a predetermined position on the support member (51). and the positioning means moves the disk inserted from the slot (3a) to the disk holding section (3a) of the disk transport mechanism.
(consisting of a tray 10, a container 22, etc.). In this way, since the positioning means for positioning the disk is also used as the positioning means for the suppressing member (52), the positioning means for the disk and the pressing member are provided separately. The number of parts has been significantly reduced.

Therefore, it is easier to reduce the size and cost of the player as a whole.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing the entire in-vehicle autoloading disc player according to the present invention, FIG. 2, FIG.
4 and 5 are a plan view, a front view, a left side view, and a right side view of the internal structure of the autoloading disc player, FIG. 6 is a perspective view of the main parts of the internal structure, and FIGS. Figure 14 (ω. (b) and (C) are partial detailed views of the internal structure, Figure 15 (
1) and (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 7G...Four parts 7f...Cut and raised portion 8...Vibration isolation member 10... ...Tray 10
a...Main body 10b...Side wall member'+
oc, 10e, 17c, 17d, 22a. 26.51a, 54a, 54e, 55a. 55e, 57a, 58a, 58f, 858°86a, 9
7a, 97b--Bin 10f, 10g, 13
a, 13b, 14a. 14b, 14f, 31b, 57f, 57Q, 58Q, 8
5b... Long hole 12.105... Bracket 13.14... Moving member 13d, 13C1, 14d, 140... Cam hole 14c... Rack Part 14e...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...Worm 22...Combiner 23...Protective film 2
5.85...Lever 28.51...Support part 29...Vibration isolation members 30a, 30b...Guide shaft 31...
...Sliders 31a, 31c...Screws 31e...Protrusions 33...Case 33
a... 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 46b ... Bearing section 47a ...Holding mechanism 47b...Idler 52...Press member 52a...Magnet 52b...Buffer member 52c...Yen Circumferential groove 54.55... Clipping plate 54b, 55b... Arc portion 54c, 55c... Claw 54f, 55f, 57h, 58h, 72... Pin Members 57c, 57d, 57e, 58c, 58d. 58e... Arm portion 57.58... Synchronization plate 61... First positioning member 62... Second positioning member 64... Coil spring 71. ...Small bracket 76.77...Flexible longitudinal members 76a, 77a
...Flexible portion 78,79...Fixing member 86...Preventing member 86b...Preventing portion 91...Guiding member 91a... ... Taper part 93 ... Play start switch 94 ...
...Intermediate member 96...Support shaft 97...
・Arms 98.101, 103.104...Detection switch 99...Switch holding member 101a...Actuator Applicant Pioneer Corporation Agent Patent attorney Motohiko Fujimura 475 times (t21 (b) Continuation of page 1 @ Inventor Bottom 1) Kasuri style Tokoro 2 Inner @ Inventor Back 1) Kenji Tokoro?

Claims (1)

[Claims] a housing having a slot into which a disc to be played is inserted; a playing means including a turntable and mounted in the housing; and a disc carrier for holding the disc in a predetermined position, the disc being placed in a playing position. The clamp mechanism includes a disc transport mechanism that transports the disc, and a clamp mechanism that clamps the disc that has been transported to the performance position, and the clamp mechanism includes a suppressing member that cooperates with the turntable to clamp the disc, and a suppressing member that clamps the disc in cooperation with the turntable. The support member is provided to be movable between a clamped position and a non-clamped position and rotatably supports the suppressing member, and a positioning means for positioning the suppressing member at a predetermined position on the supporting member. The autoloading disc player is characterized in that the positioning means positions the disc inserted through the slot at the predetermined position of the disc holder.