JPS60214457A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To attain miniaturization and low cost by constituting a lock release means simply releasing the locking with a tray of a container and locking the tray to the housing with a small mounting space. CONSTITUTION:A pin 26 is engaged selectively to a concaved part 7c and a cam slot 14. Moreover, a long hole 14f extended forward in succession with the cam slot 14e and engaged freely slidably with the pin 26 is formed to the moving member 14 so that the moving member 14 is moved after the tray 10 reaches a prescribed position on the turntable. The container 22 is locked to the tray 10 until the tray 10 reaches the prescribed position on the turntable, and when the tray 10 reaches the said prescribed position, the lock state of the container 22 to the tray 10 is released and the tray 10 is locked to the housing by means of the lock/release means.

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.

BACKGROUND ART Disc players for playing information recording discs such as digital audio discs have already been developed and have recently come to be widely used in ordinary households.

However, since such conventional disc players are designed to be installed indoors in a quiet place, they are not suitable for external use.

Requirements for a disc player used outdoors include ease of loading discs, overall compactness, and good vibration resistance and dust resistance.

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 A-loading 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 including a turntable disposed within the housing; and a disc transport mechanism transporting the disc to a playing position; a support member fixed to the housing; a tray provided movably relative to the support member in a direction substantially parallel to the rotating surface of the turntable; and a tray provided to the tray in a direction substantially perpendicular to the tray movement direction. a container that is movably provided and supports the disk; a movable member that is movably provided in the tray moving direction with respect to the support member and engages with the container via a cam hole; and a driving force for the movable member. a driving force applying means for applying a driving force, and a driving force applying means for locking the container to the tray until the tray reaches a predetermined position on the turntable, and a driving force applying means for locking the container to the tray until the tray reaches the predetermined position, and locking the container to the front tray of the container when the tray reaches the predetermined position. a lock/release means for releasing the locked state and locking the tray with respect to the housing; the lock/release means includes a recess formed in a part of the support member; a cam groove formed in the movable member so that the position in the tray movement direction matches the position of the four parts, and the one-ray so that it can selectively engage with the recess and the cam). and a long hole formed continuously in the cam groove and slidably engaged with the pin to enable movement of the movable member after the tray reaches the predetermined position. It is characterized by becoming.

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

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

As shown in FIG. 1, a front panel 3 constituting a part of the housing 2 is provided with slots 3a arranged side by side in the left and right direction for inserting a playing disc 5. 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 CI11. Also arranged on the front panel 3 is 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 (direction of arrow Y and the opposite direction thereof). As is particularly clear in FIG. 6, the tray 10 is composed of a main body 10a formed in a straight line shape 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, and the left end of the 1-ray 10 is inserted into a long hole 12a formed by a bottle 10G protruding from the left end extending in the front 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 1-lay 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 direction is provided at the left end of the tray 10. It is supported by slidably engaging the bin 10c. In addition, tray 1
The right end of the tray 0 is slidably engaged with and supported by a guide bar 15 at two support points spaced apart by m in the tray movement direction, that is, 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 is rotatably supported by the tray 10. Pins 17G and 17d protrude from the inner surfaces of the tips of the arms 17a and 17b, respectively, and the pins are elongated holes 13b formed in the rear ends of the movable members 13 and 14 to extend in the vertical direction; 14b in a slidable manner. At the right end of the chassis 7 is a power transmission structure 19 consisting of a plurality of rotatably supported gears.
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 attached to the output shaft of the motor.
is meshed with the first stage gear 19a of the power transmission mechanism 19.

Further, the final stage gear 19b of the power transmission 11s19 is engaged with a rack portion 14d formed at the lower end of the left side surface 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.

-! By the motor 20 mentioned above, the power transmission mechanism 19, and the interlocking shaft 17 including the arm 178.17b, etc.,
A driving force applying means for applying driving force to the moving members 13 and 14 is configured.

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 holding portion of the container 22 to prevent direct contact between the disk holding portion 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. Each of the bins 22a of the container 22 is slidably engaged with four elongated holes 10f formed in the tray 10 to extend in the vertical direction, so that the container 22 can be moved to the tray 1o in a direction perpendicular to the tray movement direction, that is, 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 tapered 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 back and forth.

Next, the container 22 is moved onto the tray 10 until the tray 10 reaches a predetermined position on the turntable, which will be described later, that is, a position where the center of rotation of the disk 5 supported by the container 22 substantially coincides with the rotation axis of the turntable. The lock/release means that locks the container 22 to the housing 2, releases the locked state of the container 22 to the tray 10 when the tray 10 reaches the predetermined position, and locks the tray 10 to the housing 2 will be described.

As shown in FIGS. 4 and 6, a four part 7C is formed at the right end of the main body 7a of the chassis 7. As shown in FIGS. On the other hand, a cam groove 140 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 26 that can be engaged with the recess 7C and the cam groove 140 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, moving member 1
4 is formed to extend forward continuously from the cam groove 140 and is slidably engaged with the pin 26 to prevent the movement of the moving member 14 after the tray 10 reaches the predetermined position on the turntable. A long hole 11 is formed to allow this.

These recesses 7c, cam grooves 14e, long holes 14f and pins 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. A locking/unlocking means for locking the tray 10 with respect to the housing 2 is configured.

Further, the lock/release means, the chassis 7, and the tray 1
0, the container 22, the moving member 13°14, and the power f
f1311alllfi 19 and Umo'l 20
The driving force applying means consisting of the drive force applying means 11B constitutes a disc transport mechanism that 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 provided in the housing 2 for playing a 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 mechanism, and is made of flexible rubber or the like. The chassis 7 is
is attached to. Two guide shafts 30a and 30b are fixed to the support member 28, which extend in parallel to the rotational 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 110, the slider 31 has a screw 31 extending in the direction of movement of the slider, that is, in the front-rear direction.
A rectangular parallelepiped case 33 is rotatably held by the four screws a. That is, the case 33 rotates in a plane perpendicular to the slider movement direction. Note that, inside the case 33, there is an objective lens 33 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. Further, the slider 31 and the case 33 are collectively referred to as a carriage 34.

Here, for example, as shown in FIG. 2, the tray 10 forming a part of the disk transport mechanism has a carriage 34 in which 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 instrument is at the home position, that is, the rest position before playing. This opening 10d removes dust etc. attached to the surface of the objective lens 33a.
This is provided for wiping the disk transport mechanism without removing it. Therefore, although not described in detail, this is a member that constitutes a part of the disc transport mechanism, and is a member that is interposed between the tray 10 and the objective lens 33a when the disc transport mechanism and carriage 34 are in the pre-performance position described above. Needless to say, an opening similar to the opening 10d is formed in the opening 10d. Further, as shown in FIG. 1, a circular opening 2a is also formed on the upper surface of the housing 2. Like the opening 10d, this opening 2a is also positioned to face the objective lens 33a when the disc transport mechanism and carriage 34 are in the above-described rest position before playing. Housing 2 also has
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 opening 106.2a and the like.

However, as shown in FIGS. 9 and 10, the end of the slider 31 in the moving direction has a long hole 31 extending in the left-right direction in a plane perpendicular to the slider moving 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 the circular head 35b is offset from 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. The matching elongated hole 31b constitutes 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 case. has been done. In addition,
After this adjustment is completed, it is fixed with screws 310.

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 motor 38 is arranged in front of 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 a cantilever shape, and a half nut 42 screwed onto the screw shaft 37 is attached to the 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 the extension line of the movement trajectory of the carriage 34 at a position sandwiched between the carriage and the drive tiI 14 that drives the carriage, and is fixed to the support member 28. As is clearly seen in 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 33b into which a portion of the turntable 45 and the spindle motor 46 facing the case 33 can be inserted. It 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 47a 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. Output shaft 46a and bearing section 4
A gap of approximately 10 μm normally occurs between the output shaft 46a and the turntable 45, but by providing the above-mentioned contact means, this gap is corrected and the rotation of the output shaft 46a, and thus the turntable 45, becomes accurate and smooth. be.

The above-mentioned support member 28 and guide shafts 30a, 30
b, the carriage 34, the drive mechanism including the motor 38 (driving the carriage 34), the close contact means consisting of the turntable 45, the spindle motor 46, the idler 47b, etc., and the IJo 3g! A playing means for playing a disc is constituted by the peripheral small members.

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 with respect to the chassis 7, that is, the positions where the vibration isolating member 29 is arranged are centered on the midpoint between 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 playing 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 By arranging the vibration isolating member 29 at the support point in this manner, the vibration isolating effect is 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 on 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 at equal distances from each other, and a vibration isolating member 29 is provided at the support point. Even if a

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 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 (l) formed in the tray 10 to extend 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 is inserted into the elongated hole 10 ( ), and the movable member 1
The cam holes 13g and 14g formed in 3.14 are slidably engaged with the cam holes 13g and 14g.
4(l) is a direction in which the support member 51 is separated from the turntable 45, that is, it is linearly inclined upward from the front to the rear.In other words, as the movable members 13 and 14 move back and forth, It 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
, 13 (+ and 14d and 14g, container 2
The cam holes 13d and 14d that engage with the second bottle 22a are
This is called a cam hole, and the pin 51a of the support member 51 is called a cam hole.
The cam holes 130 and 140 that engage with are referred to as second cam holes. Note that the total length of the first cam holes 13d and 14d in the disk insertion direction and the second cam holes 13g and 14 (I
is almost equal to the total length in the disk insertion direction.

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 suppression member 52 comes into contact with the surface of the disk mounted 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 pressing 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-clamping position, the suppressing member 52 is moved by the magnetic force of the magnet 52a. It is designed to be absorbed by Also, as shown in Figure M6, a buffer member 52 made of felt or the like is provided on the upper surface of the suppressing member 52
b 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, this buffer member 52 is
2, but may be provided on a part of the housing 2 facing the pressing 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 each has three pins 54a and 55.
Support member 51 is movable in the left and right direction via 5a.
is attached to. Each opposing portion of the holding plate 5155 has a circumferential groove 520 (third
(illustrated) are formed, and two claws 54c and 55C protruding from the arcuate parts can be engaged with the bottom surface of the circumferential groove 520 of the pressing member 52. has been done.

A pair of left and right synchronizing plates 57 and 58 are also provided on the lower surface of the support member 51 behind the clamping plates 54 and 55, and are rotatably attached to the C support member 51 via bins 57a and 58a, respectively. ing. Each synchronization plate 57.58 has three arm portions 57c, 57d, 57e and 58c, 58d.
and 58e. A long hole 57f is formed at the tip of the arm portion 57c, and a bottle 58'' protruding from the tip of the arm portion 58c is slidably engaged therein. Elongated holes 57Ω and 58g are also formed at the tips of the portions 57d and 58d, and the cylindrical elongated holes are connected to pins 54e and 5 protruding from the clamping plates 54 and 55, respectively.
5e in a slidable manner. That is, the synchronizing plates 57 and 58 are configured to synchronize the operations of the clamping plates 54 and 55. Note that the holding plate 54 and the synchronizing plate 57 are collectively referred to as the first positioning member 61,
On the other hand, the holding plate 55 and the synchronizing plate 58 are collectively referred to as a second positioning member 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 positioning member 61, 62 is provided at two points (claw 54).
c, 55C) can be engaged with the outer periphery of the suppressing member 52.

Further, each of the positioning members 61 and 62 is biased in a direction in which the holding portion of the clamping plate 54, 55, which is a part of both positioning members, approaches 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 suppressing member 52, and the supporting member 5
1 and related peripheral small members constitute a clamping mechanism 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. not only positions the pressing member 52 on the support member 51, but also positions the disk 5 inserted through the slot 3a of the housing 2 at the Pft4 position on the container 22. It also acts as a positioning means. As is clear from FIGS. 2 and 6, each positioning member 61
and 62 are arranged on both sides of the disk insertion path, and are movable in a plane substantially parallel to the disk holding section of the container 22 (which together with the tray 10 and the moving members 13 and 14 constitute the disk holding section). .

The clamping plate 54 is a component of each positioning member 61, 62.
, 55 and the synchronizing plates 57 and 58 have bin members 54f, 55f, 57h and 58h projecting from the lower surfaces thereof, respectively. These pin members 54r.

55f, 57h, and 58h 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, coil spring 6
4, each of the pin members 54f, 55f, 57h, and 58h urges the positioning members 61 and 62 in a direction toward the outer periphery of the disk.

Here, as shown in FIG. 6, each pin member 54f
, 55f , 57h , and 58h are formed with tapers whose diameter decreases toward the disk supporting surface of the conte t22. However, the pin member 57h is not shown.

When loading or ejecting a disc, the disc 5 is held by each of the pin members mentioned above.
At the same time as the disk 5 is clamped, the component force generated by the taper action of each pin member causes 1. The disk 5 is pressed against the disk carrying 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 -F end of the right moving member 14, and a bin member 72 is attached to the small bracket. is installed protrudingly. This pin 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 pin members 54f, 55f, 57h provided on the positioning members 61, 62.

58h and the outer periphery of the disk, that is, the disk clamping condition is 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
1.62, etc.) slides in contact with the pin member 72 and reciprocates with the container 22 in a direction substantially perpendicular to the direction of tray movement.As described above, the bin member 72 has a taper. Due to this formation, 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 receives a thrust force due to a component force generated by the taper action of the pin member 72.

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

J shown in FIG. 13, a flexible material such as rubber is formed in the shape of a plate inside the disk insertion slot h3a formed in the front panel 3 constituting the front surface of the housing. A pair of flexible longitudinal members 76 and 77 are provided, which are arranged such that one end in the transverse direction faces each other and close the slot 3a on the main surface. Each of the flexible longitudinal members 76 and 77 has a pair of fixing members 78 and 7 each having an L-shaped cross section at the other end in the transverse direction, that is, at the non-opposing end.
9 is attached to the front i panel 3.

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. In addition, flexible portions 76a and 77a, which are formed thin and are particularly easy to bend, are provided in the vicinity of each opposing end of the flexible longitudinal members 76, 77, respectively.

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 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 approximately the center in the longitudinal direction. This lever 85
is adapted 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 86a is attached to the left end of the prevention member 86.
is provided protrudingly, and the bottle is slidably engaged with a long hole 85b formed in the front end of the lever 85.

The lever 85 and the prevention part '4A86 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 85 rotates, the prevention portion 86b provided on the prevention member crosses the slot 3a and prevents the insertion of the disk from the slot 3a. This is what is being done.

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 for driving the disk double insertion prevention means, 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 FIGS. 2, 6, and 14 (ω, (C)), the disk 5 inserted through the slot 3a is inserted into the container 2 at the deep part of the housing 2 and on the disk insertion path.
A guide member 91, which acts as a guide means for guiding the container 22 to a predetermined position, is arranged to face the disk carrying surface of the container 22, and is fixed to the lower surface of the tray 10, for example. The guide member 91 is formed by bending a steel plate, for example, and has a tapered portion 91a that slopes toward the disk supporting surface of the container 22 in the disk insertion direction at its front end.

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

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 10a of the tray 10. An arm 97 formed in a substantially dogleg shape is rotatably attached to the support shaft 96 at substantially the center thereof. Bins 97a, 9 are provided on the lower surface of both ends of the arm 97.
7b are provided in a protruding manner, and the left end side bin 97a 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 biased clockwise in FIG. 2 by a coil spring (not shown). 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
A bin 97b protruding from the right end of the chassis 7 is configured to abut against a cut-and-raised portion 7f provided near the rear end of the chassis 7.

J shown in Figures 6 and 11: Sea urchin, carriage 3
A detection switch 101 is provided on the right side of 4 for detecting that the carriage has returned to its home position, that is, the rest position before the performance starts. This detection switch 101 is fixed to a support member 28 that supports a carriage 34, etc., and when a protrusion 31e protruding from a slider 31, which is a component of the carriage 34, engages with an actuator 101a of the detection switch, a detection signal is generated. It is designed to emit.

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.

In addition, the aforementioned operation button group 6, play start switch 93, detection switches 98, 101, 103 and 104
Each signal emitted from the housing 2 is transmitted to a control section (not shown) disposed at a predetermined position within the housing 2. 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 disc 5 crosses the line connecting the axes of the left and right bin members 54f and 55f, both bin members 54f and 55f are biased toward the outer periphery of the disc, so even if you release your hand, the disc will not move. 5 is drawn 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.

Note that the disk 5 includes four bin members 54f, 55'',
Since the disk is positioned while being held between the disks 57h and 58h, once positioned, the disk will not shift due to external vibrations such as vibrations of the vehicle body.

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 (al). Therefore, the left end of the arm 97 engages with the detection switch 98 to operate the detection switch (the state shown in FIG. 14 is driven rearward. However, as is clear from FIGS. 4 and 6, the lever 2 swingably provided on the tray 10
5 is engaged with a cam groove 148 formed in the moving member 14,
The moving member 14 cannot be moved relative to the tray 10, so 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 140.

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 contacting f, the engagement state between arm 97 and 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 7f.
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 disc 5 is released, the bin 26 is moved to the cam m as shown in FIG.
Four parts 7C formed on chassis 7 by mg 14 e
Go inside. As a result, the tray 10 is locked with respect to the chassis 7, and hence the housing 2, and at the same time, the locked state of the movable member 14 with respect to the tray 10, and therefore the locked state of the container 22 with respect to the 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 bins 2 and 2a protruding from the container 22 slide along the cam holes 13d and 14d provided in the moving member 13.14, respectively, and as shown in FIG. It moves downward while carrying 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
The suppressing member 52 slides along the cam holes 13g and 14 ( ) formed in the movable members 13 and 14, respectively, and approaches the disk 5 together with the supporting member 51 as shown in FIG.
Disk 5 is clamped. The vertical movement stroke of the support member 51 is about 8.5R1m, and the vertical movement stroke of the container 22 is about 6°5IIID. The movement stroke of the container 22 is 2+1 greater than the movement stroke of the support member 51.
111/h, but this is due to the cam hole 13 in which the bottle 22a protruding from the container 22 is slidably engaged.
This is a result of the fact that d and 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 portion of the movable member engages with the detection switch 104 and the detection switch is activated, as shown in FIG. , the 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 I-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, moving members 13, 14, container 22, and suppressing 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.

Incidentally, if it is desired to play again the disc 5 which has been played once, the play start switch 93 is operated 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.

--1 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 size is small, making it suitable for outdoor use. .

In particular, in the autoloading disc player according to the present invention, the tray (10) of the disc transport mechanism
The container (22) is locked to the tray until it reaches a predetermined position on the turntable (45), and when the tray (10) reaches the predetermined position, the container (22)
release the locked state with the tray and remove the tray (10
) to the housing (2) is a locking/releasing means formed in a part (7C) of a part of the support member (chassis 7) and a cam groove (14) formed in the moving member' (14).
14e), a pin (26), etc., which is extremely simple and requires only a small installation space. Therefore,
This makes it easier to reduce the size and cost of the player as a whole. Incidentally, although it is not a slot-in type disc player, in the front-loading disc player proposed by the applicant as U.S. Pat. 78), a prohibition member (83), a prohibition shaft (86), a prohibition lever (8, 5), and a large number of complicated members.

[Brief explanation of drawings]

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 respectively a plan view, a front view, a left side view, and a right side view of the interior II4'JIi of the autoloading disc player, and FIG. 6 is a perspective view of the main parts of the interior structure,
Figures 7 to 14 (a3゜(b+), (C) are partial details of the internal structure, Figure 15 (ω), (b+, (0) to 18 are operations of the autoloading disc player) Explanation 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
Q, 13a, 13b, 14a. 14b, 14f, 31b, 57f, 570°58o, 8
5b... Long hole 12.105... Bracket 13.14... Moving member 13d, 130, 14 (1,140... Cam hole 14G...・Rack part 14e...Cam groove 15...Guide bar 17...Interlocking shafts 17a, 17b...Arm 19...Power transmission 1IIIi 19a... First stage gear 19b... Final stage gear 20... Motor 20a... Worm 22... Container 23... Protective film 2
5.85... Lever 28.51... Support member 29... Vibration isolating members 30a, 30b... Guide shaft 31...
...Slider 318.3IC...Screw 31e...Protrusion 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 Circumference 54.55... Holding plates 54b, 55b... Arc parts 54c, 55c... Claws 54r, 55f, 57h, 5jh, 72...
Bin 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... ...Taber section 93...Play start switch 94...
...Intermediate member 96...Support shaft 97...
・Arm 98, 101. 103. 104...Detection switch 99...Switch holding member 101a...Actuator Applicant Pioneer Corporation Agent Patent attorney Motohiko Fujimura Continued from page 1 @ Inventor 2) Koji @Inventor Toshiyuki Tokorozawa Jikaen 4-261 Hata 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 including a turntable provided in the housing; and a disc transport mechanism transporting the disc to a playing position;
m includes a support member fixed to the housing, a tray movable with respect to the support member in a direction substantially parallel to the rotating surface of the turntable, and a tray provided to the tray substantially perpendicular to the tray movement direction. a container that is provided movably in a tray movement direction and supports the disc; a moving member that is movable in a tray movement direction with respect to the support member and engages the container through a cam hole; a driving force applying means for applying a driving force to a moving member; and a driving force applying means for locking the container to the tray until the tray reaches a predetermined position on the turntable, and locking the container to the tray when the tray reaches the predetermined position. release the locked state with the front tray, and lock the tray against the housing.
and a release means, the lock/release means having four parts formed on a part of the support member, and a lock/release means having four parts formed on a part of the support member, and a lock/release means so that the position in the tray movement direction matches the position of the recess when the tray is in the predetermined position. and a cam groove formed in the moving member, and a bottle provided on the tray so as to be able to selectively engage with the four parts and the cam groove, so that the tray is in the predetermined position. An autoloading disc player characterized in that the autoloading disc player comprises a long hole that allows the moving member to move after reaching the position.