JPS60214451A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To improve the vibration resistance by moving a disc positioned to a prescribed position on a disc holder to the playing position while it is clipped by the positioning member. CONSTITUTION:The disc is loaded from a slot and also engages with pin members 54f, 55f provided to positioning members 61, 62 and is progressed while pushing aside both the positioning members 61, 62 to the left and right. When the turning center of the disc 5 exceeds a line tying the axial center of the left and right pin members 54f, 55f, since both the pin members 54f, 55f are energized in the direction that they approach the disc outer circumference, the disc 5 is retracted into the housing 2 while it is detached from the hand. A guide member 91 guides effectively the disc and the disc is positioned to a prescribed position on the container 22. Since the disc is positioned while it is clipped with the four pin members 54f, 55f, 57h, 58h, the disc is not affected by external vibration such as shock of cabin.

Description

DETAILED DESCRIPTION OF THE INVENTION Velocity jUL 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.

1"1" 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 with the premise of being installed in a quiet place indoors, they are not suitable for outdoor use. Requirements for a disc player used outdoors include ease of loading discs, overall compactness, and good vibration resistance and dust resistance.

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

The autoloading disc player according to the present invention comprises:
a housing having a slot into which a disc to be played is inserted; a playing means provided within the housing; and a disc transport mechanism that transports the disc to a playing position, including a disc carrying part that supports the disc at a predetermined position. , positioning means for positioning the disk inserted from the slot at the predetermined position of the disk holder, the positioning means having a position on both sides of the disk insertion path in a plane substantially parallel to the disk carrying surface of the disk holder. a pair of positioning members that are movably provided in the disk and that can synchronously engage with the outer periphery of the disk at at least two points; It is characterized by comprising a biasing means for biasing the positioning member.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an autoloading disc player for use in a vehicle 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 autoloading disc player.

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

As shown in FIGS. 2 to 6, the housing 2
A chassis 7 serving as a supporting member is provided inside. 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 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 section of a turntable (described later), in this case in a front-back direction (in the direction of arrow Y and the opposite direction thereof). As is particularly clear in FIG.
0 is composed of an L-shaped main body 10a and a side wall member 10b screwed to the right end of the main body. A bracket 12 is fixed to the left end of the chassis 7, and a bin 100 protruding from the left end of the tray 10 slides into a long hole 12a formed in the bracket 12 by extending in the front-rear direction. It is supported by freely engaging.

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

Specifically, the movable member 14 is supported by a long hole 14a formed in the movable member extending in the front-rear direction and slidably engaged with a bin 10e protruding from the right end of the tray 10. There is. Further, the left moving member 13 is located between the tray 10 and the bracket 12, and a long hole 13a extending in the front-rear direction is formed in the moving member, and a bin is provided at the left end of the tray 10. It is supported by slidably engaging with 10C. In addition, tray 1
0 is slidably engaged with and supported by a guide bar 15 at two support points spaced apart in the tray movement direction, that is, the front-rear direction. An interlocking shaft 17 with arms 17a and 17b fixed to both ends is provided at the rear end of the tray 10 and extends in the left-right direction.
It is rotatably supported. Pins 170 and 17d are protruded from the inner surfaces of the distal ends of the arms 17a and 17b, respectively, and each pin has a long hole 13b extending vertically at the rear end of the moving member 13.14. 14b, and are slidably engaged with each other. At the right end of the chassis 7 is a power transmission mechanism 1 consisting of a plurality of gears rotatably supported.
9 is provided. A motor 20 is fixedly installed in front of the power transmission mechanism 19, and as is particularly clear in FIG. 4, a worm 20a is fitted to the output shaft of the motor.
is meshed with the first stage gear 19a of the power transmission mechanism 19.

Further, the final stage gear 19tl of the power transmission mechanism 19 is meshed 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 tray 1o is near the midpoint of the two support points where the tray 1o is slidably engaged with and supported by the guide bar 15.

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

A container 22 for holding the disc 5 is arranged below the tray 10 in a position sandwiched by the moving members 13, 14.

The container 22, the tray 10, and the moving members 13 and 14 constitute a disk holding section. It should be noted that a protective film 23 made of felt or the like is attached to the disk supporting surface of the container 22 in order to avoid direct contact between the disk supporting surface and the disk 5. A total of four pins 22a, one pair each, are provided at both left and right ends of the container 22, extending in the left and right direction. The container 22 is moved in the direction perpendicular to the tray movement direction, that is, in the up-down direction, by each of these pins 22a slidably engaging with four elongated holes 10f formed in the tray 10 to extend in the up-down direction. It is supported so as to be movable within a predetermined range.

After passing through the long hole 10f, the pin 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 until the tray 10 reaches a predetermined position on the turntable (described later), that is, a position where the center of rotation of the 4t disk 5 supported by the container 22 substantially coincides with the rotation axis of the turntable. A locking/releasing means that locks the container 22 to the tray 10, 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 recess 7C is formed at the right end of the main body 7a of the chassis 7. On the other hand, a cam groove 148 is formed in the right moving member 14 so that the position in the tray movement direction coincides with the position of the four parts 7C when the tray 10 is at a predetermined position on the turntable.

A lever 25 is swingably provided at the rear end of the tray 10, and a pin 26 that can be engaged with the recess 7C and the cam groove 14e projects from the swinging end of the lever. That is, the pin 26 is adapted to selectively engage with the recess 7C and the cam groove 148. In addition, the moving member 14
is formed so as to extend forward continuously from the cam groove 14e, and is slidably engaged with the pin 26, allowing movement of the movable member 14 after the tray 10 reaches the predetermined position on the turntable. A long hole 14f is formed.

These recess 7c, cam groove 14e1 long hole 14f and pin 2
6 locks the container 22 to the tray 10 until the tray 10 reaches a predetermined position on the turntable, and releases the locked state of the container 22 with the tray 10 when the tray 10 reaches a predetermined position on the turntable. and a lock for locking the tray 10 to the housing 2.
A release means is configured.

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

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

As shown in FIG. 6, a 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 rotating surface of the turntable, in this case in the front-back direction, and serve as guide means. A slider 31 formed in a substantially U-shape is movably supported by the guide shafts 30a and 30b at both sides in the direction of movement, that is, at both left and right ends.

As shown in FIGS. 9 and 10, the slider 31 has a screw 31 extending in the direction of movement of the slider, that is, in the front-rear direction.
A is provided, and a rectangular parallelepiped case 33 is rotatably held by the screw. That is, case 3
3 rotates in a plane perpendicular to the slider movement direction. Furthermore, inside the case 33, there is an objective lens 33a that irradiates the information recording surface of the disc 5 with a laser spot light.
An optical pickup hand &2 (other than the objective lens 33a is not shown) for reading information from the disk is carried. Further, the slider 31 and the case 33 are collectively referred to as a carriage 34.

Here, as shown in FIG. 2, for example, in the tray 10 forming a part of the disk transport mechanism, the disk transport mechanism is in the pre-disk transport position (the state shown in FIG. 2) and the carriage 34 is 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 frontage part 10d removes dust etc. attached to the surface of the objective lens 33a.
This is provided for wiping the disk transport 114N 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 above-mentioned frontage section 10d, this opening section 2a is also positioned so as to face the objective lens 33a when the disk transport mechanism and carriage 34 are in the above-mentioned rest position before playing. A lid 2b that can close the opening 2a is also screwed to the housing 2. By providing such an opening in the housing 2, the objective lens 33a can be cleaned without removing the housing. Although not described in detail, it is also possible to adjust the light irradiation power of the optical pickup means through the openings 10d, 2a, etc.

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 horizontal direction in this case 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. Adjustment of the rotation angle position of the case 33, that is, adjustment of the so-called tangential direction of the optical pickup means (not shown) provided in the case, by the matching elongated hole 31b. The means are configured. In addition, after this adjustment is completed, it is fixed with the screw 31C.

As shown in FIGS. 6 and 11, a screw shaft 37 is rotatably attached to both ends of the support member 28 and is arranged parallel to the guide shafts 30a and 30b. A motor 3B is disposed 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 41
is fixed in the form of a cantilever beam, and a half nut 42 screwed onto the screw shaft 37 is fixed at the free end of the leaf spring.

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 plate 1 spring 41, the half nut 42, and related peripheral small members. has been done.

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

As shown in FIGS. 6 and 9, the case 33, which is a part of the carriage 34, has a notch 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 rest 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.

By these holding Il structure 47a and idler 47b,
A contact means is configured to bring the output shaft 46a and the bearing portion 46b that supports it into close contact. [Output] Normally, a gap of about 10μ occurs between the shaft 46a and the bearing portion 46b, but by providing the above-mentioned close contact means, this gap is corrected and the output shaft 46a, and hence the turntable 71.5. The rotation becomes accurate and smooth.

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 peripheral small members related thereto. This constitutes a playing means for playing a disc.

Here, a 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 performance means from external vibrations such as body vibrations of the automobile in which the in-vehicle autoloading disc player is mounted, and the supporting point of the supporting member 28 is as described above. By arranging the vibration isolating member 29 at the support point, the vibration isolating effect is significantly improved. The support point of the support member 28 is set as described above in consideration of the change in the center of gravity of the playing means as the carriage 34 moves. Even if the support point of the support member 28 is provided on an arc centered on the center of gravity of the playing means when it is at the midpoint and with equal pressure, and the vibration isolator 29 is provided at the support point, it will not be possible to provide a large amount of vibration prevention. The shaking effect is jq.

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 where it is sandwiched between the moving members 13 and 14. A total of four bottles 51a, one pair each, are provided at both left and right ends of the support member 51, extending in the left and right direction. The support member 51 is configured such that each of the bins 51a is slidably engaged with four elongated holes 10 (+) formed in the tray 10 extending in the vertical direction, so that the support member 51 can be attached to the tray 10 in a direction perpendicular to the tray movement direction. In other words, it is supported so as to be movable within a predetermined range in the vertical direction.The bins 51a of the support member 51 are also inserted into the elongated holes 10g of the tray 10, and the cam holes formed in the movable members 13 and 14 respectively. 13 (+ and 14
( ) is engaged with the sliding diameter of the cam hole 13 ( ).
1 and 14g, the support member 51 is the turntable 45
It slopes linearly upward in the direction away from the front, that is, from the front to the rear. In other words, the support member 51 moves up and down with respect to the turntable 45 as the moving members 13 and 14 move back and forth.

Note that the cam holes 13d formed in the moving members 13 and 14
, 13o and 146 and 111, container 22
The cam holes 13d and 14d that engage with the bin 22a of the support member 51 are called first cam holes, whereas the cam holes 13 (1 and 14o that engage with the bin 51a of the support member 51 are called second cam holes). The total length of the first cam holes 13d and 14d in the disk insertion direction is approximately equal to the total length of the second cam holes 13g and 17H1 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 pressing member 52 comes into contact with the surface of the softened disk on the turntable 45 is referred to as a clamp position. Support member 5
1 moves between the clamped position and the unclamped position. The same (as shown in FIG. 3), the suppressing member 52 has an annularly formed magnet 52a, and the magnetic force of the magnet forms a disk clamp.

Further, the suppressing member 52 and the supporting member 51 that rotatably supports the suppressing 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 pressing member 52 is held by the magnetic force of the magnet 52a. It is adapted to be attracted to the support member 51. Further, as shown in FIG. 6, a buffer member 5 made of felt or the like is provided on the upper surface of the pressing member 52.
2b is attached, and when the supporting member 51 is in the non-clamping position, the upper surface of the suppressing member 52 and the housing 2 are prevented from coming into direct contact due to vibration of the supporting member. However, this buffer portion 52 is not limited to the upper surface of the suppressing member 52, but is also provided on the housing 2 that faces the suppressing member 52 when the supporting member 51 is in the non-clamping position.
It may be provided in a part of.

As is particularly clear in FIG. 2, a pair of right and left clamping plates 54 and 555 are arranged on the lower surface of the support member 51, sandwiching the pressing member 52, and the gripping plates 54 and 555 are arranged in the left and right direction via three bottles 54a and 55a, respectively. The supporting member 5 is movably moved in the
It is attached to 1. Arc parts 54b and 55b, which are fitted into circumferential grooves 52C (shown in the third figure) formed on the outer periphery of the suppressing member 52, are formed on each opposing part of the holding plates 54 and 55, and the arc parts have a Circumferential groove 520 of suppressing member 52
Two protruding claws 54G and 55C that can be engaged with the bottom surface of the holder are provided.

A pair of left and right synchronizing plates 57 and 58 are also arranged on the lower surface of the supporting member 51 behind the clamping plates 54 and 55, and are rotatably attached to the supporting member 51 via pins 57a and 58a, respectively. It is being Each synchronization plate 57, 58 has three arm portions 57c, 57d, 57e and 58c, 58.
d and 58e. A long hole 57f is formed at the tip of the arm portion 57C, and a bottle 58f protruding from the tip of the arm portion 58c is slidably engaged therein.

Further, elongated holes 57111.580 are also formed at the tip ends of the arm portions 576.58d that protrude approximately forward, and the cylindrical elongated holes are connected to pins 54e that are respectively protruded from the clamping plates 54.55.
and 55e, respectively, in a slidable manner. That is,
The synchronizing plates 57 and 58 are configured to synchronize the operation of the clamping plates 54,55. Note that the clamping plate 54 and the synchronizing plate 57 are collectively referred to as a first positioning member 61, whereas the clamping plate 55 and the synchronizing plate 58 are collectively referred to as a second positioning member 62. That is, the 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 of them is provided at two points (for example,
The claws 54c, 55c) can engage with the outer periphery of the pressing member 52.

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

The above-described positioning members 61 and 62, coil spring 6/I, etc. 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, the supporting member 51, and peripheral small members related thereto constitute a clamping mechanism for clamping the disc 5 conveyed to the performance position, that is, the turntable 45. ing.

The positioning means including the above-described 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 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 disk insertion path, and the container 22 (together with the tray 10 and the moving members 13, 14 constitutes a disk carrier) It is movable in a plane substantially parallel to the disk holding portion of the disk.

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

55f, 57h, and 58h extend substantially perpendicularly to the disk supporting portion of the container 22, and act as retaining portions that engage with the outer periphery of the disk 5. In addition, coil spring 6
4 biases positioning members 61 and 62 in a direction in which each of the bin members 54f, 55f, 57h, and 58h approaches the outer periphery of the disk.

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

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

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, a small bracket 71 shaped like a letter is fixed to the upper end of the right moving member 14, and a bin member 72 is attached to the small bracket. It is installed protrudingly. This bin member 72 extends in the vertical direction, and the tray 10 is at a predetermined position on the turntable 45, that is, the rotation center of the disk 5 supported by the container 22 that moves together with the tray is the rotational center of the turntable 45. It is arranged so as to engage with the front end of a pawl 73 screwed to the tip of the arm portion 588 of the synchronizing plate 58, which is a component of the positioning means, when it reaches a position that substantially coincides with the axis.

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

The engagement state between 58h and the outer periphery of the disk, that is, the disk clamping state, is released.

As is clear from FIG. 6, the pin member 72 provided on the moving member 1/I is formed with a taper whose diameter decreases in the direction in which the container 22 approaches the turntable 45, that is, in the downward direction. The positioning means (consisting of positioning members 61, 62, etc.) for positioning the disk 5 at a predetermined position on the container 22 slides while contacting the bin member 72, and moves together with the container 22 in a direction substantially perpendicular to the tray movement direction. As mentioned above, since the pin member 72 is formed with a taper, the contact between the pin member and the positioning means is a point contact. Therefore, the resistance caused by mutual contact becomes extremely small, and disc loading and ejecting operations become smooth. Further, the positioning means is moved at t by the component force generated by the action of the taper of the pin member 72.
This will result in receiving IT power.

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

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

These flexible longitudinal members 76, 77 as well as the fixed members 78.
79 constitutes a closing means for closing the slot 3a.

Each of the opposing ends of the flexible longitudinal members 76 and 77 is chamfered in an arc shape, so that the sliding contact between the respective flexible longitudinal members and the disk 5 is smooth. In addition, flexible portions 76a and 77a, which are formed thin and are particularly easy to bend, are provided near the opposite ends of the flexible longitudinal members 76 and 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.
5B, it is rotatably attached to the bracket 12 at approximately the center in its 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.

These lever 85 and prevention member 86 constitute a disk double insertion prevention means for preventing double insertion of disks from the slot 3a. That is, the lever 85
As the prevention member 86 moves up and down in accordance with the rotation of
It is designed to cross the slot 3a and prevent the insertion of a disc from the slot 3a.

By the way, the lever 85 is designed to be linked to the movement of the moving member 13, which is a component of the disk transport mechanism described above, and in this way, a part of the power for transporting the disk is transferred to the disk double insertion prevention means. By using it as the power to drive the disk, double insertion of the disk can be prevented.
A special drive mechanism for driving the i means is no longer 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 serving 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 formed at its front end so as to approach the disk supporting surface of the container 22 in the disk insertion direction.

As shown in FIGS. 2, 6, and 14 (ω), a disk 5 is inserted into the rear end of the tray 10 through the slot 3a and positioned at the predetermined position above the container 22.
A play start switch 93 is provided so as to engage with the outer periphery of the disc when it is pushed slightly in the disc insertion direction. However, this play start switch 93 is provided with an intermediate member 94 (also shown in FIG. 14+b+) which is provided movably in the front and back direction in front of the play start switch 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. There are bins 978.97 on the bottom surface of both ends of the arm 97.
The bins 97a on the left end side can be engaged with the outer periphery of the disk 5 positioned on the container 22. A switch holding member 99 that holds the detection switch 98 so as to be able to engage with the left end portion of the arm 97 is also swingably attached to the support shaft 96 . This switch holding member 99 is held in place by a coil spring (not shown).
A pie spacing is applied in the clockwise direction in the figure. The arm 97 engaged with the switch holding member 99 via the detection switch 98 is also given a repulsive force in the same direction as the switch holding member 99 by this coil spring (not shown).

The above-mentioned support shaft 96, arm 1897, detection switch 98
, the switch holding member 99 and the peripheral small members surrounding them 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 9
A bottle 97b protruding from the right end of the chassis 7 comes into contact with a cut-and-raised portion 7f provided near the rear end of the chassis 7.

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

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

Further, as shown in FIG. 6, a movable member 14 is located at the right end of the chassis 7 and behind the detection switch 103.
A detection switch 1 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.

Incidentally, each signal emitted from the aforementioned operation button group 6, play start switch 93, detection switches 98, 101, 103, and 104 is transmitted to a control section (not shown) disposed at a predetermined position within the housing 2. Ru. The motors 20 and 38 and the spindle motor 46 operate at timings described later by operation signals sent from the control section in response to these signals.

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

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

First, as shown in FIG. 1, the disk 5 is inserted into the housing 2 through the slot 3a. At the same time as the disk 5 is inserted through the slot 3a, the disk 5 is inserted into the bin portion 11 provided in the positioning member 61, 62 shown in FIG. 2, for example.
54f and 55f, both positioning members 61.62
Proceed while pushing left and right. Left and right bin members 54f
When the center of rotation of the disk 5 crosses the line connecting the axial centers of the pins 54f and 55f, the disk 5 remains inside the housing 2 even if you release your hand because both pin members 54f and 55f are biased toward the outer periphery of the disk. be drawn into. Moreover, at this time, the guide member 91 effectively guides the disk 5,
The disk 5 is positioned at a predetermined position on the container 22. Note that the disk 5 has four bin members 54f and 55.
Since the discs are positioned while being held by f, 57h, and 58h, once positioned, the discs will not be displaced by external vibrations such as vehicle body vibrations.

As shown in FIG. 15 (ω, peak), at the same time as the disk 5 is positioned on the container 22, the outer periphery of the disk 5 engages with the left end bin 97a of the arm 97, and the arm For example, as shown in FIG.
Figure 15: State of the song). Then, the motor 20 starts rotating and the moving member 14 is driven backward via the power transmission mechanism 19. However, as is clear from FIGS. 4 and 6, the pin 26 protruding from the swinging end of the lever 25 swingably provided on the tray 10 is inserted into the cam groove formed in the moving member 14. By engaging 148, moving member 14 cannot move relative to tray 10, and thus container 22 is locked relative to tray 10. Therefore, the rotation of the motor 20 only causes the moving member 14.13, the tray 10, and the container 22 to move rearward. Note that the bin 26 slides on the right end of the chassis 7 while being engaged with the cam groove 1/Ie.

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 7 [
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.
almost coincides with the axis of rotation.

When the engagement between the arm 97 and the disk 5 is released, at a moment of 0.1, the bin 26 moves the cam i:414c to f41! as shown in FIG. ! 12 and enters into the recess 7C formed in the shifter. This results in 1
- The ray 10 is locked to the chassis 7, and thus the housing 2, and at the same time, the locking state of the moving member 14 to the tray 10, and therefore the locking state of the container 22 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 bottle 22a protruding from the container 22 slides along the cam holes 13d and 14d provided in the moving member 13.14, respectively, and the first
As shown in FIG. 8, the container 22 moves downward while carrying the disk 5. Therefore, the disc 5 is placed on the turntable 45. At this point, the disk supporting surface of the container 22 is separated from the disk 5, and the disk 5 can rotate together with the turntable 45.1. νru.

Further, by the backward movement of only the movable member 13.14, the bottle 51a which has been thrust into the support member 51 of the clamping mechanism is
g and 14g, the pusher 11 member 52 approaches the disk 5 together with the support section vI51, as shown in FIG. 18, and the disk 5 is clamped. Note that the movement stroke of the support member 51 in the vertical direction is approximately 8.5 mm.
Moreover, the movement stroke of the container 22 in the vertical direction is about 6.degree. 5 mm. The movement stroke of the container 22 is 2 mm longer than the movement stroke of the support member 51.
Although the size is smaller, the cam holes 13d and 14 are slidably engaged with the bin 22a protruding from the container 22.
d is a connecting beam created because the cam hole has a horizontal portion in the middle.

When the movable member 14 reaches the rear limit position at the same time as the disk 5 is clamped, a part of the movable member engages with the detection switch 104, causing the detection switch to operate, 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 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 is finished and the carriage 34 reaches the movement limit position, the carriage 34 and the U-turntable 45 are stopped, and at the same time the motor 20 starts to reverse. Therefore, the moving members 13, 14 of the tray 101, the container 22, and the suppressing member 52 are returned to the rest position before playing through a process that is completely opposite to the operation during disk loading described above. Further, the carriage 34 is also returned to its home position.

The disk 5 is thus recovered.

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

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

--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 loading disc player according to the present invention, the disc inserted from the slot (3a) is transported to the disc holding section (tray 10, container 22).
Positioning means for positioning the disc at a predetermined position on the disk holding section are provided on both sides of the disk insertion path so as to be movable in a plane substantially parallel to the disk holding section of the disk holding section, and are synchronous with the outer periphery of the disk at at least two points. A pair of positioning parts IJ (clamping plates 5/I, 5
5. Synchronization provisional 57, 58) and the engaging portions (bin members 54f, 55f) on the outer periphery of the disk of the two-position determining member.

57h, 58h) biasing means (coil spring 64
). That is, the disc positioned at a predetermined position on the disc holder is conveyed to the performance position while being held by the positioning members. Therefore, once the disc is positioned at the predetermined position, it will not be displaced by external vibrations or the like, and will be accurately transported to the playing position.

In other words, the vibration resistance with respect to loading is good.

[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 a plan view, a front view, a left side view, and a right side view, respectively, of the internal structure of the O1 to O-Ding disk player, and FIG. 6 is a perspective view of the main part of the internal structure, and FIG. Figures 7 to 14 (a). (b3 (C) is a partially detailed diagram of the internal structure, Fig. 15
a〉. +b+, (C) to FIG. 18 are diagrams for explaining the operations of the loading 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...Four parts 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...-pins 10f, 10
o, 13a, 13b, 14a. 14b, 14f, 31b, 57f, 570°58o, 8
5b... Long hole 12.105... Bracket 13.14... Moving member 13d, 130.14d, 140... Cam hole 1
4c... Rack part 14e... Cam groove 15... Guide bar 17... Interlocking shafts 17a, 17b... Arm 19... ... Power transmission mechanism 19a ... First stage gear 19b ... Last stage gear 20 ... Motor 20a ... Worm 22 ... Container 23 ...Protective film 2
5.85... Lever 28.51... Support member 29... Vibration isolating members 30a, 30b... Guide shaft 31...
...Sliders 31a, 31c...Screws 31e...Protrusions 33...Case 33
a... Objective lens 33b... Notch 34... Carriage 35... Offset screw 35a... Threaded portion 35b...・Circular head 37...Screw shaft 38...Motor 39...Pulley 41...
...Plate spring/12...Half nut 45...Turntable 46...Spindle motor 46a...Output shaft 46 b...Bearing Part 47a... Holding mechanism 47b... Idler 52... Pressing member 52a... Magnetic screws 1 to 52b... Buffer member 52G... ... Circumferential groove 54.55 ... Holding plate 54b, 55b ... Arc portion 57Ic, 55c ... Claw 54f, 55f, 57b, 58h, 72... ...
Pin members 57c, 57cj, 57e, 58c, 58d. 58e...Arm portion 57.58...Synchronization plate 61...First positioning member 62...Second positioning member 64...-Coil spring 71. ...Small bracket 76.77...Flexible longitudinal members 76a, 77a
...Flexible portion 78,79...Fixing member 86...Preventing member 86b...Preventing portion 91...Guiding member 91a... ... Taper part 93 ... Play start switch 94 ...
...Intermediate member 96...Support shaft 97...
・Arms 98, 101, 103, 104...Detection switch 99...Switch holding member 101a...Actuator Applicant Pioneer Corporation Agent Patent attorney H Toshimotohiko Page 1 Continuation of 0 authors 1) Koji Tokorozawa Jukaen Garden 0 inventors back 1) Kenji Tokorozawa Jukaen Gardens

Claims (1)

[Claims] a housing having a slot into which a disc to be played is inserted; a playing means provided within the housing; and a disc transport mechanism that transports the disc to a playing position, including a disc carrying part that supports the disc at a predetermined position. , positioning means for positioning the disk inserted from the slot at the predetermined position of the disk holder, and the positioning means includes a positioning section on both sides of the disk insertion path in a plane substantially parallel to the disk supporting surface of the disk holder. a pair of positioning members that are movably provided in the disk and that can synchronously engage with the outer periphery of the disk at at least two points; An autoloading disc player comprising a biasing means for biasing a positioning member.