JPH0656689B2 - Auto trading disc player - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player, and more particularly to an auto loading disc player having a disc carrying mechanism for automatically carrying a disc to a playing position.

BACKGROUND ART A disc player for playing an information recording disc such as a digital audio disc has already been developed and has recently come into widespread use in ordinary households. However, since such a conventional disc player is designed on the assumption that it is installed indoors in a quiet place, it is not suitable for outdoor use. The conditions required for a disc player used outdoors include easy loading of the disc, small size as a whole, and good vibration resistance and dust resistance.

Object of the invention Where the object of the present invention is suitable for outdoor,
The object is to provide a disc player having particularly good vibration resistance.

Configuration of the Invention The auto loading disc player according to the present invention is
A housing having a slot into which a disc to be played is inserted, a playing means including a turntable and provided in the housing, and a disc carrier for holding the disc at a predetermined position, and the disc is conveyed to a playing position. And a clamp mechanism for clamping the disc transported to the playing position, the clamp mechanism cooperating with the turntable to perform a disc clamping action, and the turntable with respect to the turntable. And a support member that is movably provided between a clamp position and a non-clamp position to rotatably support the pressing member, and the pressing member is provided when the support member moves to the non-clamp position. It is characterized in that a cushioning member is provided between the adjacent member and the pressing member.

Embodiment Hereinafter, an on-vehicle auto-loading disc player as an embodiment of the present invention will be described with reference to the accompanying drawings.

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

As shown in FIG. 1, a front panel 3 forming a part of the housing 2 is provided with a slot 3a for inserting a disc 5 to be played, extending in the left-right direction. However, the left-right direction referred to here is toward the front indicated by the arrow Y. Therefore, the arrow X direction in the drawing indicates the left side, and the arrow Z direction is the upper side. In addition,
The disk 5 is of a type that records and reads a signal using laser light and has an outer diameter of about 12 cm. The front panel 3 is also provided with an operation button group 6 for operating the disc player, for example, play start and eject.

As shown in FIGS. 2 to 6, a chassis 7 as a support member is provided in the housing 2. In addition,
The chassis 7 includes 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 isolation members 8 made of rubber or the like. However, FIG. 1 shows only the two left vibration isolating members 8. A tray 10 is provided on the chassis 7 so as to be movable in a direction parallel to a rotation surface of a turntable, which will be described later, in this case, a front-rear direction (arrow Y direction and the opposite direction). As is particularly apparent in FIG. 6, the tray 10
Is composed of an L-shaped main body 10a and a side wall member 10b screwed to the right end portion of the main body. A bracket 12 is fixed to the left end of the chassis 7, and a pin 10c protruding from the left end of the tray 10 slides in a long hole 12a formed in the bracket 12 extending in the front-rear direction. It is supported by freely engaging.

On the other hand, a pair of moving members 13 is provided on both left and right sides of the chassis 7.
And 14 are arranged. The moving member 14 on the right side is made of resin or the like, and is attached to the right end portion of the chassis 7 in the tray moving direction.
That is, the tray 10 is attached to the right end portion of the tray 10 which is slidably supported by a guide bar 15 which extends in the front-rear direction and is fixedly installed. More specifically, the moving member 14 has a long hole 14a formed in the moving member by extending in the front-rear direction.
It is supported by being slidably engaged with a pin 10e protruding from the right end of the. The left moving member 13 is located between the tray 10 and the bracket 12, and a long hole 13a formed in the moving member by extending in the front-rear direction is provided at the left end of the tray 10. 10
It is supported by being slidably engaged with c. The right end of the tray 10 is slidably engaged with and supported by the guide bar 15 at two support points separated in the tray moving direction, that is, the front-rear direction. An interlocking shaft 17 having arms 17a and 17b fixed to both ends is provided at the rear end of the tray 10 so as to extend in the left-right direction, and is rotatably supported by the tray 10. Arm 17
Pins 17c and 17d are provided so as to project from the inner surfaces of the distal end portions of a and 17b, and the pins are elongated holes 13b and 1 formed at the rear end portions of the moving members 13 and 14 by extending in the vertical direction.
4b are slidably engaged with each other. A power transmission mechanism 19 composed of a plurality of gears rotatably supported is provided at the right end of the chassis 7. A motor 20 is fixedly installed in front of the power transmission mechanism 19, and as is particularly clear in FIG. 4, the worm 20a fitted to the output shaft of the motor meshes with the first stage gear 19a of the power transmission mechanism 19. is doing. Further, the final stage gear 19b of the power transmission mechanism 19 has a moving direction of the moving member at the lower end portion of the left side surface of the moving member 14,
That is, it is engaged with the rack portion 14d formed in the front-rear direction. The meshing position between the final stage gear 19b and the rack portion 14d is near the midpoint of the above-mentioned two support points where the tray 10 is slidably engaged with and supported by the guide bar 15.

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

Below the tray 10, a container 22 carrying the disk 5 is arranged at a position sandwiched by the moving members 13 and 14. The container 22, the tray 10, and the moving members 13 and 14 form a disk carrying portion.
A protective film 23 made of felt or the like is attached to the disk carrying surface of the container 22 in order to avoid direct contact between the disk carrying surface and the disk 5. Container 22
A total of four pins 22a are provided on both left and right ends of each of the pair, extending in the left-right direction. Each of the pins 22a of the container 22 is slidably engaged with the four elongated holes 10f formed in the tray 10 by extending in the vertical direction, so that the container 10 has a direction perpendicular to the tray moving direction, that is, the vertical direction. Is movably supported within a predetermined range. The pin 22a of the container 22 also has the elongated hole 10f.
After passing through, the cam members are slidably engaged with cam holes 13d and 14d formed in the moving members 13 and 14, respectively. The cam holes 13d and 14d are provided at the disc insertion direction, that is, from the front toward the rear upward, that is, at the taper portion that inclines in the direction in which the container 22 moves away from the turntable to be described later, and at the end or rear end of the taper portion in the disc insertion direction. It is composed of a horizontal portion that continuously extends rearward and a taper portion that continuously extends in parallel with the taper portion at the rear end of the horizontal portion. That is, the container 22 moves up and down as the moving members 13 and 14 move in the front-rear direction.

Next, the tray 10 is at a predetermined position on the turntable described later, that is, the disk 5 carrying the container 22.
The container 22 is locked to the tray 10 until the center of rotation of the container 22 reaches a position substantially coincident with the rotation axis of the turntable, and when the tray 10 reaches the predetermined position, the container 22 is locked with the tray 10. A lock for unlocking and locking the tray 10 with respect to the housing 2.
The releasing means will be described.

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, the right moving member 14 is formed with a cam groove 14e so that the position in the tray moving direction coincides with the position of the recess 7c when the tray 10 is at the predetermined position on the turntable. A lever 25 is swingably provided at the rear end of the tray 10, and a pin 26 that can engage with the recess 7c and the cam groove 14e is provided at the swing end of the lever. That is, the pin 26 includes the concave portion 7c and the cam groove 14.
It is adapted to selectively engage with e. Further, the moving member 14 is formed to extend forward in a continuous manner to the cam groove 14e and slidably engages with the pin 26, so that the moving member after the tray 10 reaches the predetermined position on the turntable. An elongated hole 14f is formed to allow the movement of the fourteen.

The recess 7c, the cam groove 14e, the long hole 14f, and the pin 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 locked state of the container 22 with the tray 10 is released. A lock / release 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 members 13 and 14, and the driving force applying means including the power transmission mechanism 19 and the motor 20 and the like, the disk 5 inserted from the slot 3a of the housing 2 to the playing position, that is, the turn. A disk transport mechanism for transporting onto the table is configured.

Next, the playing means for playing a disc, which is provided in the housing 2, will be described.

As shown in FIG. 6, on the lower surface of the chassis 7 which is a part of the disc transport mechanism, a supporting member 28 formed in a generally U-shape as a whole is arranged, and is made of flexible rubber or the like. The chassis 7 via the four anti-vibration members 29
Is attached to. Two guide shafts 30a and 30b, which extend parallel to the rotation surface of the turntable in this case, extend in the front-rear direction and serve as guide means, are fixed to the support member 28. The slider 3 formed in a substantially U shape on the guide shafts 30a and 30b
1 is movably supported by both side parts in the moving direction, that is, both left and right end parts. As shown in FIGS. 9 and 10, the slider 31 is provided with a screw 31a extending in the moving direction of the slider, that is, the front-rear direction, and the case 33 having a rectangular parallelepiped shape is rotatably held by the screw. ing. That is, the case 33 rotates in a plane perpendicular to the slider movement direction. The case 33
An optical pickup means (not shown other than the objective lens 33a) for carrying information from the disc is carried inside the objective lens 33a for irradiating the information recording surface of the disc 5 with laser spot light. 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 disc transport mechanism has the disc transport mechanism at the disc transport pre-position (the state shown in FIG. 2) and the carriage 34. Has a circular opening 10d facing the objective lens 33a when it is at the home position, that is, at a rest position before playing. This opening portion 10d removes dust and the like adhering to the surface of the objective lens 33a,
It is provided for wiping without removing the disc transport mechanism. Therefore, although not described in detail, it 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 the carriage 34 are in the above-described pre-performance position. Needless to say, an opening similar to the opening 10d is formed. 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 described above, the opening 2a is also positioned so as to face the objective lens 33a when the disk transport mechanism and the carriage 34 are in the above-described rest position before playing. A lid 2b that can close the opening 2a is screwed to the housing 2. By providing such an opening in the housing 2 as well, the objective lens 33a can be cleaned without removing the housing. Although not described in detail, it is also possible to adjust the light irradiation power of the optical pickup means through the openings 10d and 2a.

Although it moves back and forth, as shown in FIGS. 9 and 10, the end portion of the slider 31 in the moving direction extends in the plane perpendicular to the slider moving direction, in this case, extends in the left-right direction, and extends in the long hole 31.
b is formed. The long hole 31b is provided corresponding to one end of the rotation of the case 33, and the screw portion 35 is provided in the long hole.
a is a circular head portion 35 of a bias screw 35 in which a is screwed into the case 33.
b is fitted. As the name implies, the threaded portion 3 of the offset screw 35
The axis center of 5a is deviated from the axis center of the circular head portion 35b. That is, by rotating the biasing screw 35, the case 33 is rotated little by little around the support screw 31a.

The bias screw 35 and the elongated hole 31b into which the circular head portion 35b of the bias screw is fitted adjust the rotational angle position of the case 33, that is, an optical pickup means (not shown) provided in the case. The adjustment means for adjusting the so-called tangential direction (1) is configured. In addition,
After the adjustment is completed, the screws 31c are fixed.

As shown in FIGS. 6 and 11, a screw shaft 37 arranged in parallel to the guide shafts 30a and 30b is rotatably attached to both ends of the support member 28. A motor 38 is arranged in front of the screw shaft 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. 11, the slider 31 has a leaf spring 4
1 is fixed in a cantilever shape, and a half nut 42 screwed to the screw shaft 37 is attached to the free end of the leaf spring.
Is fixed.

The screw shaft 37, the motor 38, the power transmission means including the pulley 39, the leaf spring 41, the half nut 42, and the peripheral small members related thereto constitute a drive mechanism for driving the carriage 34. Has been done.

A turntable 45 is arranged at a position on the extension line of the movement path of the carriage 34 and sandwiched by the carriage and the drive mechanism that drives the carriage, and is fixed to the support member 28. As is apparent from FIG. 7, the turntable 45 is directly driven to rotate by a spindle motor 46 which is a drive source provided so as to carry the turntable. As shown in FIGS. 6 and 9, the carriage 3
The case 33 having a part of 4 is formed with a notch 33b into which a part of the turntable 45 and the spindle motor 46 facing the case 33 can be fitted. When the carriage 34 is at the home position of the carriage, that is, at the rest position before playing, the data table 45 and the spindle motor 46 are fitted in the cutout portion 33b.

As shown in FIGS. 7 and 8, an idler 47b rotatably supported by a holding mechanism 47a is brought into contact with the output shaft 46a of the spindle motor 46.
The holding mechanism 47a and the idler 47b constitute a contact means for bringing the output shaft 46a and the bearing portion 46b supporting the output shaft 46a into close contact with each other. Output shaft 46a and bearing 4
Normally, a gap of about 10 μm is generated between 6b and 6b. However, by providing the above-mentioned close contact means, this gap is corrected and the rotation of the output shaft 46a, and hence the turntable 45, becomes accurate and smooth. is there.

The support member 28 described above and the guide shafts 30a and 30
b, the carriage 34, the drive mechanism including the motor 38 (driving the carriage 34), and the turntable 45.
The spindle motor 46, the above-mentioned close contact means including the idler 47b, and the peripheral small members related thereto constitute a playing means for playing a disk.

Here, a method of 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 members 29 are arranged are centered on the midpoint between the movement locus of the center of gravity of the carriage 34 and the rotation axis of the turntable 45. They are equidistant on the arc.
The anti-vibration member 29 is provided to protect the playing means from external vibrations such as car body vibrations of an automobile equipped with the on-vehicle auto loading disc player. The support point of the support member 28 is as described above. The anti-vibration effect is remarkably improved by disposing the anti-vibration member 29 at the supporting point. The support point of the support member 28 is set as described above in consideration of the change of the center of gravity of the playing means due to the movement of the carriage 34.
Simply, for example, when the carriage 34 is at the midpoint of the movement path, the support points of the support member 28 are provided at equal distances on an arc centered on the center of gravity of the playing means, and the vibration isolator 29 is provided at the support points. Even if it is provided, a great vibration damping effect can be obtained.

Next, a clamp mechanism for clamping the disc 5 conveyed on the play position, that is, the turntable 45 will be described.

As shown in FIGS. 2, 3, and 6, a plate-shaped support member 51 is provided above the container 22 and at a position sandwiched by the moving members 13 and 14. A pair of pins 51a are provided on each of the left and right ends of the support member 51, one pair each.
Are extended in the left-right direction. The support member 51 slidably engages with the four elongated holes 10g formed in the tray 10 by vertically extending the pins 51a, thereby allowing the tray 10 to move in a direction perpendicular to the tray moving direction.
That is, it is movably supported within a predetermined range in the vertical direction. The pin 51a of the support member 51 also serves as the tray 10
Of the moving member 13,
The cam holes 13g and 14g respectively formed in 14 are slidably engaged. The cam holes 13g and 14g are linearly inclined upward in the direction in which the support member 51 moves away from the turntable 45, that is, from the front to the rear. That is, the support member 51 moves up and down with respect to the turntable 45 as the moving members 13 and 14 move back and forth. The moving member 13
Cam holes 13d, 13g and 14 formed in
Of d and 14g, the cam holes 13d and 14d that engage with the pin 22a of the container 22 are referred to as first cam holes, while the cam hole 13 that engages with the pin 51a of the support member 51.
g and 14g are referred to as a second cam hole. The total length of the first cam holes 13d and 14d in the disc insertion direction is substantially equal to the total length of the second cam holes 13g and 14g in the disc insertion direction.

The support member 51 is rotatably provided with a pressing member 52 that cooperates with the turntable 45 to perform a disc clamping action. In addition, 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 contacts 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. Similarly, as shown in FIG. 3, the pressing member 52 has a magnet 52a formed in an annular shape, and the magnetic force of the magnet forms a disc clamp. 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.
The pressing member 52 is attracted to the support member 51 by the magnetic force of the magnet 52a when it is in the unclamped position. Also, as shown in FIG.
A buffer member 52b made of felt or the like is attached to the upper surface of the pressing member 52, and the upper surface of the pressing member 52 and the housing 2 are separated from each other by vibration of the supporting member 51 when the supporting member 51 is in the unclamped position. It does not come into direct contact. However, the cushioning member 52 is not limited to the upper surface of the pressing member 52, and the housing 2 that faces the pressing member 52 when the support member 51 is in the unclamped position.
It may be provided in a part of.

As is particularly apparent in FIG. 2, a pair of left and right holding plates 54 and 55 are arranged on the lower surface of the support member 51 so as to sandwich the pressing member 52, and three pins 54a and 5 are provided.
A support member 51 movably in the left-right direction via 5a.
Is attached to. A circumferential groove 52c (third groove) formed on the outer periphery of the pressing member 52 is provided at each of the opposing portions of the holding plates 54 and 55.
Arc portions 54b and 55b to be inserted into the inside are formed, and two arcuate claws 54c and 55c capable of engaging with the bottom surface of the circumferential groove 52c of the pressing member 52 are provided in the arc portion so as to project. ing.

On the lower surface of the support member 51, a pair of left and right synchronizing plates 57 and 58 are arranged behind the holding plates 54 and 55, and are rotatably attached to the support member 51 via pins 57a and 58a, respectively. ing. Each of the synchronizing plates 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 pin 58f projectingly provided at the tip of the arm portion 58c is slidably engaged. Further, elongated holes 57g and 58g are also formed at the respective tip portions of the arm portions 57d and 58d that protrude substantially forward, and these elongated holes are formed in pins 54e and 5 protruding from the holding plates 54 and 55, respectively.
5e are slidably engaged with each other. That is, the synchronizing plates 57 and 58 are configured to synchronize the operations of the holding plates 54 and 55. The holding plate 54 and the synchronization plate 57 are collectively referred to as a 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, the pair of positioning members 61 and 62 are movably provided in a plane substantially perpendicular to the rotation axis of the pressing member 52, and each of them has, for example, two points (the claw 54).
c, 55c), it can engage with the outer periphery of the pressing member 52. The positioning members 61 and 62 are urged toward the engaging portions of the holding plates 54 and 55, which are a part of the positioning members, with the outer circumference of the pressing member, that is, in the direction in which the claws 54c and 55c approach the outer circumference of the pressing member. Coil spring 64 as means
Is urged by.

The above-mentioned positioning members 61 and 62 and the coil spring 64 constitute a positioning means for positioning the pressing member 52 at a predetermined position on the support member 51.
Further, the positioning means, the pressing member 52, and the supporting member 5
1 and the peripheral small members related thereto constitute a clamping mechanism for clamping the disc 5 conveyed on the play position, that is, the turntable 45.

The positioning means including the above-mentioned positioning members 61, 62 not only positions the pressing member 52 on the support member 51, but also positions the disk 5 inserted from the slot 3a of the housing 2 at a predetermined position on the container 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 disc insertion path, and the container 22 (constituting the tray 10 and the moving members 13 and 14 constitutes a disc carrying portion). It is movable in a plane substantially parallel to the disc carrying surface. Each positioning member 6
Pin members 54f, 55f, are formed on the lower surfaces of the holding plates 54, 55 and the synchronization plates 57, 58, which are the constituent members of the reference numerals 1, 62, respectively.
57h and 58h are respectively provided so as to project. These pin members 54f, 55f, 57h and 58h extend substantially perpendicularly to the disk carrying surface of the container 22 and act as engaging portions that engage with the outer circumference of the disk 5. The coil spring 64 includes a positioning member 6 in a direction in which each of the pin members 54f, 55f, 57h and 58h approaches the outer circumference of the disc.
1, 62 are energized.

Here, as shown in FIG. 6, each pin member 54f,
55f, 57h, and 58h are formed with tapers whose diameter decreases toward the disk carrying surface of the container 22. However, the pin member 57h is not shown. The disc 5 is clamped by the pin members at the time of loading or ejecting the disc. At the same time as the disc 5 is clamped, the component force generated by the taper action of the pin members causes the disc 5 to move to the container 22. It is pressed toward the disk carrying surface.

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

As shown in FIGS. 2 and 6, an L-shaped small bracket 71 is fixedly provided on the upper end of the right moving member 14, and the pin member 7 is attached to the small bracket.
2 is projected. The pin member 72 extends in the vertical direction, and the tray 10 rotates at a predetermined position on the turntable 45, that is, the center of rotation of the disk 5 carried by the container 22 moving with the tray rotates. It is arranged so as to engage with the front end portion of the claw 73 screwed to the tip of the arm portion 58e of the synchronizing plate 58, which is a constituent member of the positioning means, when it reaches a position that substantially coincides with the axis. That is, the positioning members 61 and 62 are operated in accordance with the movement of the moving member 14 after the tray 10 reaches the predetermined position, and the pin members 54f, 55f and 5 provided on the positioning members 61 and 62 are moved.
The engagement state between 7h and 58h and the outer circumference of the disc, that is, the state of holding the disc is released.

As is apparent from FIG. 6, the container 22 is attached to the turntable 4 on the pin member 72 provided on the moving member 14.
The taper is formed so as to decrease in diameter in the direction approaching 5, that is, in the downward direction. The above-mentioned positioning means (positioning member 6) for positioning the disk 5 at a predetermined position on the container 22.
1, 62, etc.) slides while contacting the pin member 72 and reciprocates together with the container 22 in a direction substantially perpendicular to the tray moving direction. However, as described above, the pin member 72 is tapered. By being formed, the contact between the pin member and the positioning means is point contact. Therefore, the resistance due to the mutual contact becomes extremely small, and the disc loading and ejecting operations become smooth. Further, the positioning means receives thrust by the component force generated by the taper action of the pin member 72.

Next, each mechanism that acts on the die into which the disc 5 is inserted from the slot 3a of the housing 2 will be described.

As shown in FIG. 13, a flexible material such as rubber is formed in a plate shape inside the disk insertion slot 3a formed in the front panel 3 which constitutes the front surface of the housing, and is made short with each other. A pair of flexible longitudinal members 76 and 77 are provided so that one ends in the hand direction are opposed to each other and close the slot 3a on the main surface. Each of the flexible longitudinal members 76 and 77 is attached to the front panel 3 at the other end portion in the short side direction, that is, at the non-opposing side end portion by a pair of fixing members 78 and 79 having an L-shaped cross section. The flexible longitudinal members 76, 77 and the fixing members 78, 79 constitute a closing means for closing the slot 3a.

The opposite ends of the flexible longitudinal members 76 and 77 are chamfered in an arc shape so that the sliding contact state between the flexible longitudinal members and the disk 5 is smooth. Flexible portions 76a and 77a, which are thin and particularly easy to bend, are provided near the opposite ends of the flexible longitudinal members 76 and 77, respectively.

By the way, the flexible longitudinal members 76 and 77 have conductivity, and are grounded, for example, via the fixing members 78 and 79, respectively. By doing so, static electricity can be removed from the disk 5 inserted from the slot 3a, and dust that has adhered to the surface of the disk 5 due to static electricity can be prevented from entering the housing 2. When the material of the flexible longitudinal members 76, 77 is, for example, rubber, it is effective to mix carbon particles or the like as a method of making the materials have conductivity.

As shown in FIGS. 2, 5, and 6, a lever 85 extending substantially in the front-rear direction is arranged on the right side of the bracket 12 fixed to the left end of the chassis 7, and the pin 8
It is rotatably attached to the bracket 12 at a substantially central portion in the longitudinal direction by 5a. This lever 85
Is adapted to rotate in conjunction with the moving member 13. On the other hand, a preventive member 86 is provided in front of the lever 85 so as to be movable in the vertical direction (the arrow Z direction and the opposite direction). A pin 86 is provided at the left end of the prevention member 86.
a is projected, and the pin is slidably engaged with an elongated hole 85b formed at the front end of the lever 85. The lever 85 and the prevention member 86 constitute a disc double insertion preventing means for preventing double insertion of the disc from the slot 3a. That is, when the prevention member 86 moves up and down in accordance with the rotation of the lever 85, the prevention portion 86b provided on the prevention member crosses the slot 3a and prevents the disc from being inserted from the slot 3a. -ing

By the way, the lever 85 is adapted to interlock with the movement of the moving member 13 which is a component of the above-mentioned disc transport mechanism. In this way, a part of the power for transporting the disc is transferred to the disc double insertion preventing means. By using it as the power for driving the disk, a special drive mechanism for driving the disk double insertion preventing means is unnecessary. Therefore, the player can be downsized and the cost can be easily reduced.

As shown in FIGS. 2, 6, and 14 (a), (c),
A guide member 91, which acts as a guide means for guiding the disc 5 inserted from the slot 3a to a predetermined position on the container 22 in the deep portion of the housing 2 on the disc insertion path, faces the disc carrying surface of the container 22. It is arranged 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 a taper portion 91a is formed at a front end portion of the guide member 91. The taper portion 91a is inclined so as to approach the disk carrying surface of the container 22 in the disk insertion direction.

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

As shown in FIG. 2, a support shaft 96 extending vertically 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 V shape is rotatably attached to the support shaft 96 at a substantially central portion thereof. Pins 97a, 97 are provided on the lower surfaces of both ends of the arm 97.
The pins 97a on the left end side are engageable 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 engageable with the left end portion of the arm 97 is swingably attached to the support shaft 96. This switch holding member 99 is provided with a second coil spring (not shown).
A biasing force in the clockwise direction in the figure is given. 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).

Support shaft 96, arm 97, detection switch 98 described above
The switch holding member 99 and the peripheral small members associated therewith constitute a mechanical detecting means for detecting that the disk 5 is positioned on the container 22. Further, when the tray 10 moves backward a predetermined amount from the position shown in FIG. 2 and reaches a predetermined position, a pin 97b protruding from the right end of the arm 97 is provided near the rear end of the chassis 7. The cut and raised portion 7f is brought into contact with the cut and raised portion.

As shown in FIGS. 6 and 11, the carriage 34
A detection switch 101 for detecting that the carriage has returned to the home position, that is, the rest position before the start of playing, is provided on the right side of. This detection switch 1
Reference numeral 01 is fixed to a support member 28 that supports the carriage 34 and the like, and a slider 3 that is a component member of the carriage 34.
The projection 31e projecting from No. 1 engages with the actuator 101a of the detection switch to generate a detection signal.

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

Further, as shown in FIG. 6, the moving member 14 is provided at the right end of the chassis 7 and behind the detection switch 103.
A detection switch 1 for detecting that the moving member has reached the backward movement limit position by engaging with a part of
04 is fixed. However, this detection switch 104
Is attached to the chassis 7 via a bracket 105.

Each signal emitted from the operation button group 6, the play start switch 93, and the detection switches 98, 101, 103 and 104 is transmitted to a control unit (not shown) arranged at a predetermined position in the housing 2. It The motors 20 and 38 and the spindle motor 46 operate at the timings described later according to the operation signals sent from the control unit in response to these signals.

Next, the operation of the vehicle-mounted auto-loading disc player having the above-described configuration will be briefly described along with the playing procedure.
1 to 5 show the initial state before the performance of the disc player.

First, as shown in FIG. 1, insert the disk 5 into the slot 3
Insert from a into the housing 2. The disk 5 is inserted from the slot 3a and at the same time, for example, a pin member 54 provided on the positioning members 61 and 62 shown in FIG.
It engages with f and 55f, and advances, pushing both positioning members 61 and 62 right and left. Left and right pin members 54f and 5
When the center of rotation of the disk 5 crosses the line connecting the shaft centers of 5f, both pin members 54f and 55f are urged in such a way that they approach the outer circumference of the disk, so that the disk 5 stays inside the housing 2 even if the hand is released. Be drawn in. Also, at this time,
The guide member 91 effectively guides the disc 5, and the disc 5 is positioned at a predetermined position on the container 22. The disk 5 has four pin members 54f, 55f, 57.
Since the disk is positioned while being held by h and 58h, the disk once positioned does not shift due to external vibration such as vehicle vibration.

As shown in FIGS. 15 (a) and 15 (b), the disc 5 is positioned on the container 22, and at the same time, the outer periphery of the disc 5 is engaged with the left end pin 97a of the arm 97,
The arm is rotated counterclockwise in FIG. 15 (a), for example. Therefore, the left end of the arm 97 engages with the detection switch 98 to operate the detection switch (state of FIG. 15 (b)). Then, the motor 20 starts rotating and the moving member 14 is driven backward via the power transmission mechanism 19. However, as apparent from FIGS. 4 and 6, the pin 26 projecting from the swing end of the lever 25 swingably provided on the tray 10 is provided in the cam groove formed in the moving member 14. Due to its engagement with 14e, the moving member 14 cannot move relative to the tray 10 and thus the container 22 is locked relative to the tray 10. Therefore, the rotation of the motor 20 causes the moving members 14 and 13 to move.
Only the tray 10 and the container 22 are moved rearward. The pin 26 slides on the right end of the chassis 7 while engaging with the cam groove 14e.

When the tray 10 and the container 22 are moved backward by a predetermined amount and the disc 5 is housed in the housing 2, substantially simultaneously with the pin protruding from the right end portion of the arm 97 as shown in FIG. 15 (c). 97b is a cut-and-raised portion 7 of the chassis 7.
abut on f. In this way, the pin 97b is cut and raised 7
By contacting f, 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 transported further rearward. Along with this, the arm 97 is moved to the 15th
The arm 9 is rotated counterclockwise in FIG.
The engagement state of the disk 7 with the disk 5 is released. In this state, the center of rotation of the disk 5 is substantially aligned with the rotation axis of the turntable 45.

At the same time when the engagement between the arm 97 and the disk 5 is released, the pin 26 leaves the cam groove 14e 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 thus the housing 2, while at the same time moving the moving member 14
Locked on the tray 10 and thus the container 2
The locked state of the second tray 10 is released. Thus, only the moving members 14 and 13 continue to move backward, and the state shown in FIG. 17 is reached. That is, container 2
The pin 22a protruding from the sliding member 2 slides along the cam holes 13d and 14d provided in the moving members 13 and 14, respectively.
As shown in FIG. 18, the container 22 has a disk 5
It moves downward while carrying. Therefore, disk 5
Is placed on the turntable 45. At this time, the disk carrying surface of the container 22 separates from the disk 5, and the disk 5 can rotate together with the turntable 45. Further, the rearward movement of only the moving members 13 and 14 causes the pins 51a protruding on the support member 51 of the clamp mechanism to form the cam holes 13g and 1g formed in the moving members 13 and 14, respectively.
It slides along 4g, the pressing member 52 approaches the disk 5 together with the support member 51 as shown in FIG. 18, and the disk 5 is clamped. The vertical movement stroke of the support member 51 is about 8.5 mm, and the vertical movement stroke of the container 22 is about 6.5 mm.
Has become. The movement stroke of the container 22 is 2 mm smaller than the movement stroke of the support member 51. This means that the cam holes 13d and 14b with which the pin 22a protruding from the container 22 slidably engages are formed. This is the result of having a horizontal part in the middle part of the.

When the moving member 14 reaches the rear limit position at the same time when the disk 5 is clamped, a part of the moving member engages with the detection switch 104 to operate the detection switch, as shown in FIG. The motor 20 is stopped. It becomes possible to play in this state. The moving member 13
The lever 85 is rotated in association with the rearward movement of the disc, and thus the prevention member 86 prevents double insertion of the disc from the disc insertion slot 3a.

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

When the carriage 34 reaches the movement limit position after the performance is finished, the carriage 34 and the turntable 45 are stopped, and at the same time, the motor 20 starts the reversing operation. Therefore, the tray 10, the moving members 13 and 14, the container 22,
The pressing member 52 can return to the rest position before the performance by tracing the past completely opposite to the operation at the time of loading the disc. Further, the carriage 34 is also returned to the home position.

Thus, the disk 5 is recovered.

When it is desired to replay the disc 5 which has once been played, the play start switch 93 is operated by slightly pushing the disc 5 in the disc insertion direction to perform the replay.

Although the auto loading disc player is shown as being mounted on a vehicle, it goes without saying that it can be used indoors for home use.

Effects As described above in detail, in the auto-loading disc player according to the present invention, by adopting the slot-in type, the disc loading is facilitated and the overall size is small, which is suitable for outdoor use.

Further, in particular, in the auto-loading disc player according to the present invention, the support member (51) for rotatably supporting the pressing member (52) that cooperates with the turntable (45) to perform the disc clamping action is in the non-clamping position. A buffer member (52b) is provided between the pressing member and a member that is close to the pressing member when moved. Therefore, the noise generated by the direct contact between the pressing member and the member adjacent thereto due to external vibration or the like is prevented. That is, the vibration resistance of the clamp mechanism is good.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an entire vehicle-mounted auto loading 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 auto-loading disc player, and FIG. 6 is a perspective view of a main part of the internal structure, and FIGS. 14 (a), (b) and (c) are partial detailed views of the internal structure, and FIGS. 15 (a), (b) and (c) to 18 show the operation of the auto loading disc player. It is a figure for explaining. Explanation of symbols of main parts 2 ... Housing 2a, 10d ... Opening 2b ... Lid 3 ... Front panel 3a ... Slot, 5 ... Disc 6 ... Operation button group 6a ... Play start switch 7 ... ... chassis, 7a ... main body 7b ... subchassis 7c ... recess 7f ... cut-and-raised portion 8 ... vibration damping member, 10 ... tray 10a ... main body, 10b ... side wall member 10c, 10e, 17c, 17d , 22a, 26, 51
a, 54a, 54e, 55a, 55e, 57a, 58
a, 58f, 85a, 86a, 97a, 97b ... Pins 10f, 10g, 13a, 13b, 14a, 14b, 1
4f, 31b, 57f, 57g, 58g, 58b ... long hole 12, 105 ... bracket 13, 14 ... moving member 13d, 13g, 14d, 14g ... cam hole 14c ... rack portion, 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 ... Container, 23 ... Protective film 25,85 …… Lever 28,51 …… Supporting member 29 …… Vibration isolating member 30a, 30b …… Guide shaft 31 …… Slider 31a, 31c …… Screw 31e …… Projection, 33 …… Case 33a …… Objective lens, 33b ...... notch 34 ...... carriage, 35 ...... bias screw 35a ...... screw part, 35b ...... circular head 37 ...... screw screw Motor 38, motor 39, pulley 41, leaf spring 42, half nut 45, turntable 46, spindle motor 46a, output shaft, 46b, bearing 47a, holding mechanism, 47b. Idler 52 ... Pressing member 52a ... Magnet 52b ... Cushioning member, 52c ... Circular groove 54,55 ... Clamping plate 54c, 55b ... Arc part 54c, 55c ... Claw 54f, 55f, 57h, 58h, 72 ... Pin member 57c, 57d, 57e, 58c, 58d, 58e ...
Arms 57, 58 ... Synchronizing plate 61 ... First positioning member 62 ... Second positioning member 64 ... Coil spring 71 ... Small bracket 76, 77 ... Flexible longitudinal member 76a, 77a ... Flexible Part 78, 79 ... Fixing member 86 ... Preventing member, 86b ... Preventing part 91 ... Guide member 91a ... Tapered part 93 ... Play start switch 94 ... Intermediate member, 96 ... Support shaft 97 ... Arm 98, 101, 103, 104 ... Detection switch 99 ... Switch holding member 101a ... Actuator

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiko Okamoto 25-1 Nishimachi Yamada, Kawagoe City, Saitama Prefecture Pioneer Co., Ltd. Kawagoe Factory (72) Inventor Bessho 4, 2610 Hanazono, Tokorozawa, Saitama Prefecture Pioneer Tokorozawa Plant Co., Ltd. (72) Toshiyuki Kimoto 426-10 Hanazono, Tokorozawa, Saitama Prefecture Pioneer Co., Ltd. Tokorozawa Plant (72) Kenji Okuda 42610 Hanazono, Tokorozawa City, Saitama Pioneer Tokorozawa In the factory (56) References JP 58-60456 (JP, A) JP 58-60451 (JP, A)

Claims (1)

[Claims] 1. A disk including a housing having a slot into which a disk to be played is inserted, a playing means including a turntable and provided in the housing, and a disk holding portion for holding the disk at a predetermined position. A disc transport mechanism for transporting the disc to the playing position; and a clamp mechanism for clamping the disc transported to the playing position, the clamp mechanism cooperating with the turntable to perform a disc clamping action, and A supporting member that is movably provided between the clamp position and the non-clamping position with respect to the turntable and rotatably supports the pressing member, and when the supporting member moves to the non-clamping position. A buffer member is provided between the pressing member and a member adjacent to the pressing member. Auto-loading disk player.