JPS60214470A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To attain smooth carrying of a disc by engaging and supporting freely slidably a tray of a disc carrying mechanism to a guide bar fitted to a support member (chassis) in a way of two-support point so as to prevent a play of the tray. CONSTITUTION:A chassis 7 in a housing 2 consists of a main body 7a and a sub- chassis 7b and the tray 10 is provided freely movably in a direction in parallel with the turning plane of a turntable 45. The tray 10 consists of a main body 10a and a side wall 10b screwed to the right end of the main body and the right end is supported to the guide bar 15 of the right end of the chassis 7 while being coupled freely slidably at two-support point parted in the tray moving direction. The container 22 storing the disc is arranged downward the tray 10 and the disc storage section is constituted of the container 22, the tray 10 and the moving members 13, 14.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc player V, and more particularly to an autoloading disc player equipped with a disc transport mechanism that automatically transports a disc to a playing position.

Disc players for playing information recording discs such as digital audio sub-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. The requirements for a disc player used outdoors include ease of loading discs, overall compactness, and good vibration resistance and dust resistance.

1. The object of the present invention is suitable for outdoor use,
In particular, it is an object of the present invention to provide a disc player that can smoothly transport discs.

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 including a turntable disposed within the housing; and a disc transport mechanism for transporting the disc to a playing position. a support member fixed to the housing;
a tray that is movable relative to the support member in a direction substantially parallel to the rotating surface of the turntable; and a tray that is movable on the tray in a direction substantially perpendicular to the tray movement direction and holds the disk. The tray includes a container, a moving member that is movably provided in a tray moving direction with respect to the supporting member and engages with the container through a cam hole, and a driving force applying means that applies a driving force to the moving member. The tray is supported by the support member at both sides in the direction of movement of the tray, and at least one of the both sides has a guide bar attached to the support member extending in the direction of movement of the tray. The special feature is that it is slidably engaged and supported at two support points spaced apart in the direction of ray movement.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automotive autoloading disc play 17 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 CI. The front panel 3 is also provided with a group of operation buttons 6 for operating the disc player, such as play start and eject.

As shown in FIGS. 2 to 6, a chassis 7 serving as a support member is installed within the housing 2. As shown in FIGS. 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 surface of a turntable, which will be described later, in this case in a front-back direction (direction of arrow Y and the opposite direction thereof). As is particularly clear in FIG.
The main body 10a is formed into a single character shape, and the side wall member 10b is screwed to the right end 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 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. 10c and is supported by slidably engaging it. In addition, tray 1
The right end of 0 is connected to the guide bar 1゛5 in the I-ray movement direction,
That is, they are engaged and supported in a freely openable manner at two support points spaced apart in the front-rear direction. At the rear end of the tray 10 is an interlocking shaft 1 having arms 17a and 17b fixed to both ends.
7 is provided extending in the left-right direction, and the tray 1
It is rotatably supported at 0. Arms 17a, 17b
Bottles 17c and 17d are respectively protruded from the inner surface of the distal end of the movable member 13.14, and each of the bins slides into an elongated hole 13b and 14b formed in the rear end of each movable member 13.14 and extending in the vertical direction. They are movably engaged. A power transmission mechanism 19 consisting of a plurality of gears is rotatably supported at the right end of the chassis 7.
is provided. A motor 20 is fixedly installed in front of the power transmission 141419, and as is particularly clear in FIG.
a is meshed with the first stage gear 19a of the power transmission mechanism 19.

Further, the final stage gear 19b 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. The engagement position between the final stage gear 19b and the rack portion 14d is near the midpoint of the two support points at which the tray 10 is slidably engaged with and supported by the guide bar 15.

The above [motor 20 and power transmission 1ff4FJ19, etc.]
The interlocking shaft 17 including the arms 17a, 17b, etc. 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.

This container 22, the tray 10, etc., and the movable members 13 and 14 constitute a disk holding section. Note that the disk holding surface of the container 22 is covered with a protective material made of felt or the like to avoid direct contact between the disk holding surface and the disk 5. 423 is attached. container 2
A total of four bins 22a, one pair each, are provided at both left and right ends of the container 22, extending in the left-right direction.The container 22 is formed by each of these bins 22a extending in the vertical direction to By slidably engaging the four elongated holes 10f, the tray 10 is moved in the direction perpendicular to the tray movement direction.
That is, it is supported so as to be movable within a predetermined range in the vertical direction. The bottle 22a of the container 22 also has the long hole 1
After passing through 0f, the movable members 13.14 are slidably engaged with cam holes 13d and 14d formed in the movable members 13, 14, respectively. The cam holes 13d and 14d are in the disk insertion direction,
That is, a tapered part that slopes upward from the front to the rear, that is, in a direction in which the container 22 moves away from the turntable, which will be described later; a horizontal part that extends rearward and continues from the end of the tapered part in the disk insertion direction, that is, the rear end; The tapered portion extends parallel to the tapered portion and continues from the rear end of the horizontal portion. 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 tray 10 is placed at a predetermined position on the turntable which will be described later, that is, the disc 5 supported by the container 22.
The container 22 is locked to the tray 10 until the center of rotation of the turntable reaches a position where it substantially coincides with the rotation axis of the turntable, and when the tray 10 reaches the predetermined position, the locked state of the container 22 with the tray 10 is locked. A lock for releasing and locking the tray 10 to the housing 2.
The release means will be explained.

As shown in FIGS. 4 and 6, a recess 7C is formed at the right end of the main body 7a of the siresif. On the other hand, a cam groove 14e is formed in the right moving member 14 so that the position in the tray movement direction coincides with the position of the 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 selectively engages with the recess 7C and the cam groove 14e1%. Further, a cam W414e is formed on the movable member 14 and extends forward in succession to the cam W414e, and is slidably engaged with the bin 26 to move the training tool 10 after it reaches the predetermined position on the turntable. A long hole 14f is formed to allow movement of the member 14.

These recesses 7c, cam grooves 14C1 long holes 14f, and bins 2
6, the container 22 is locked to the tray 10 until the tray 10 reaches a predetermined position on the turntable, and when the tray 10 reaches the predetermined position, the container 22 is released from the locked state with the tray 10. A locking/unlocking means for locking the tray 10 with respect to the housing 2 is configured.

Further, the locking/releasing means, the sill shift, 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 disk 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 sheath 17 which is a part of the disk transport mechanism, and is a flexible support member 28. It is attached to the chassis 7 via four vibration isolating members 29 made of rubber or the like. Two guide shafts 30a and 30b are fixed to the support member 28, which extend in parallel to the rotating surface of the turntable, in this case in the front-back direction, and serve as guide means. A slider 31 formed in a substantially U-shape is movably supported on the guide shafts 30a and 30b at both sides in the direction of movement, that is, at both left and right ends.

As shown in FIGS. 9 and 10, the slider 31 has a screw 31 extending in the direction of movement of the slider, that is, in the front-rear direction.
A is provided, and a rectangular parallelepiped case 33 is rotatably held by the screw. That is, case 3
3 rotates in a plane perpendicular to the slider movement direction. Furthermore, inside the case 33 is an objective lens 33 that irradiates the information recording surface of the disc 5 with laser spot light.
an optical picknotube means for reading information from the disk, including a (other than the objective lens 33a are not shown);
is carried. In addition, the slider 31 and the case 33
are collectively referred to as the 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 opening 10d removes N dust etc. attached to the surface of the objective lens 33a.
It is designed to wipe the disc transport mechanism without removing it. Therefore, although not described in detail, it is a member constituting a part of the disc transport mechanism, and when the disc transport IAM 4 and the key 17 carriage 34 are in the pre-performance position, the 1-ray 10 and the objective lens 33a are connected to each other. Needless to say, an opening similar to the opening 10d is also formed in a member interposed between the two. Further, as shown in FIG. 1, there is also a circular opening 2 on the top surface of the housing 2.
a is formed. Similar to the above-mentioned opening 10d, this frontage section 2a also has an opening when the objective lens 33
It is positioned opposite to a. 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. In addition,
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.

However, as shown in FIGS. 9 and 10, the end of the slider 31 in the moving direction has a long hole 31 extending in the left-right direction in a plane perpendicular to the slider moving direction.
b is formed. The elongated hole 31b is provided corresponding to one end of rotation of the case 33, and the elongated hole has a threaded portion 35.
a is a circular head 35 of an offset screw 35 that is screwed into the case 33;
tl is fitted. As the name suggests, the axial center of the threaded portion 35a of the bias screw 35 is offset with respect to the axial center of the circular head 351). That is, by rotating this biasing screw 35, the case 33 is rotated little by little around the support screw 31a. The fitting elongated hole 31b allows adjustment of the rotation angle position of the goo 2330, and the so-called tangibility 1 of the optical pickup means (not shown) provided in the case.
Adjustment means is configured to perform full direction adjustment. NaJ
3. After completing this adjustment, fix with screws 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 shirts 1 to 30a and 30b. A motor 88 is arranged in front of the screw shaft 37, and a motor 88 is arranged in front of the screw shaft 37.
7 is configured to be rotationally driven by the motor via a power transmission means including a pulley 39 and the like. As is particularly clear in FIG. 11, a leaf spring 41 is fixed to the slider 31 in the form of a cantilever, and a half nut 4 screwed onto the screw shaft 37 is attached to the free end of the leaf spring.
2 is permanently installed.

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

Ki 1? A turntable 45 is disposed on the extension line of the movement locus of the ridge 34 and is sandwiched between the main 11 ridge and the drive mechanism that drives the main 11 ridge. Fixed. 7th
As is clear from the figure, 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 part of the turntable 45 and the spindle motor 46 facing the case 33 can be inserted. is formed. When the carriage 34 is in its Baume position, that is, in its rest position before playing, the turntable 45 and spindle motor 46 are inserted into the notch 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.

These holding mechanism 47a and idler 47b constitute a close contact means for bringing the output shaft 46a and the bearing portion 46b that supports it into close contact. Output shaft 46a and bearing section 4
Normally, a gap of about 10 μm is generated between the output shaft 46a and the turntable 45, but by providing the above contact means, this gap is corrected and the rotation of the output shaft 46a, and therefore the turntable 45, becomes accurate and smooth. It will become.

The above-mentioned support member 28 and guide shafts 3°a, 30
b, the carriage 34, etc., and the drive m including the motor 38.
l! i (driving the carriage 34), the turntable 45, the spindle motor 46, and the idler 47b.
The above-mentioned close-contact means and related small peripheral members constitute a playing means for playing a disc.

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

The four support points of the support member 28 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 supporting 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 points of the support member 28 are provided on an arc centered on the center of gravity of the playing means at the midpoint and equidistant from each other, and the vibration isolating member 29 is provided at the support points, a large vibration damping effect can be obtained. can get.

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

As shown in FIGS. 2, 3, and 6, a plate-shaped support member 51 is provided above the container 22 at a position sandwiched between the moving members 13 and 14. There are a total of four bottles 51a, one pair each at both left and right ends of the support member 51.
are provided extending in the left and right direction. The support member 51 is configured such that each of the bins 51a 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. That is, the bin 51a of the support member 51 is supported movably within a predetermined range in the vertical direction.
The movable member 13 is inserted into the elongated hole 10g of 0.
．． It is slidably engaged with cam holes 130 and 14Q formed in 14, respectively. Cam holes 13o and 14g
The support member 51 is inclined linearly upward in the direction away from the turntable 45, that is, from the front to the rear. In other words, the support member 51 moves up and down with respect to the turntable 45 as the moving members 13 and 14 move back and forth.

Note that the cam holes 13d formed in the moving members 13 and 14
, 13g and 146 and 14a, 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 (] and 11 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 13o and 14(I) 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 disk placed on the turntable 45 is referred to as a clamp position. Support member 5
1 moves between the clamped position and the unclamped position. As also shown in FIG. 3, the suppressing member 52 has 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 supported by the magnetic force of the magnets 1 to 52a. It is adapted to be attracted to the member 51. Also, as shown in Figure 6,
The upper surface of the pressing member 52 is made of felt or the like. it
A material 52b is attached to prevent the upper surface of the pressing member 52 from coming into direct contact with the housing 2 due to vibrations of the supporting member 51 when the supporting member 51 is in the non-clamped position. However, the buffer member 52 is not limited to the upper surface of the pressing member 52, and may be provided on a part of the housing 2 that faces the suppressing member 52 when the supporting member 51 is in the non-clamping position.

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

A pair of left and right synchronization plates 57.58 are also arranged on the lower surface of the support member 51 behind the clamping plates 54.55, and are rotatably attached to the support member 51 via bins 57a and 58a, respectively. I'm being kicked out. Each synchronization plate 57.58 has three arm portions 570.57d, 57e and 58c,
58d and 58e. An elongated hole 57'' 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. Elongated holes 570 and 580 are also formed at the tip of each of the portions 57d and 58d, and both of the step holes are connected to the bottles 54e that are protruded from the clamping plates 54 and 55, respectively.
and 55e, respectively, in a slidable manner. Zunawara,
The synchronizing plates 57 and 58 synchronize the operation of the clamping plates 54 and 55.
It is constructed to have a tightening effect. Note that the clamping plate 54 and the synchronizing plate 57 are collectively referred to as the first positioning member 61, whereas the clamping plate 55 and the synchronizing plate 58 are collectively referred to as the second positioning member 62. That is, these pair of positioning members 61 and 62 are provided movably in a plane substantially perpendicular to the rotation axis of the pressing member 52, and each of them is provided at two points (for example,
The claws 540, 550) can engage the outer periphery of the suppressing member 52.

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

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

Further, the positioning means, the suppressing member 52, and the supporting member 5
1 and peripheral small members related thereto constitute a clamp 11m that clamps the disc 5 conveyed onto the performance position, that is, the turntable 45.

The positioning means including the above-mentioned positioning members 61, 62, etc. not only positions the suppressing member 52 on the support member 51, but also positions the disk 5 inserted through the slot 3a of the housing 2 at a predetermined position on the 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 supporting surface 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 bottle members 54t.

55f, 57h, and 58h extend substantially perpendicularly to the disk supporting surface of the container 22, and act as engaging portions that engage with the outer periphery of the disk 5. JJ, coil spring 6/I are attached to each bottle member 54f, 55f, 57h and 58.
Positioning member 61.1) approaches the outer circumference of the disk.
62 is energized.

Here, as shown in FIG. 6, each bin member 541.
Tapers 55f, 57h, and 5811 are formed to reduce the 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 the component force generated by the action of the tapers of the respective 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, an L-shaped small bracket 71 is fixed to the upper end of the right moving member 14, and a bin member 71 is fixed to the small bracket.
2 is provided protrudingly. This bin member 72 extends in the vertical direction, and the tray 10 is 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 on the turntable 45. It is arranged so as to engage with the front end of a pawl 73 screwed to the tip of the arm portion 588 of the synchronizing plate 58, which is a component of the positioning means, when it reaches a position that substantially coincides with the rotation axis.

That is, as the moving member 14 moves after the tray 10 reaches the predetermined position, the positioning portion vJ61.62 is moved I, and the bin members 54f, 55f, 57h provided on the positioning member 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 container 22 is attached to the turntable 4 on the pin member 72 provided on the moving member 14.
A taper is formed in which the diameter decreases in a direction approaching 5, that is, downward. The positioning means (positioning member 6
1.62, etc.) slides in contact with the bin member 72 and reciprocates together with the container 22 in a direction substantially perpendicular to the direction of lay movement. Due to the taper formed in 72, the contact between the bin member and the positioning means is a point contact.Therefore, the resistance due to mutual contact is extremely small, and disc loading and ejecting operations are smooth. In addition, the positioning means receives a thrust force due to the component force generated by the taper action of the bottle member 72.

Next, each Ia4'4 that acts 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 on the main surface. Each of the flexible longitudinal members 76 and 77 is attached to the front panel 3 at its other short end, i.e., at its non-opposed end, 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 in the vicinity of each opposing end of the flexible longitudinal members 76, 77, respectively.

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

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

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

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

As shown in FIGS. 2, 6, 14(a), and (C), the disk 5 inserted through the slot 3a is inserted into the container 22 at the deep part of the housing 2 and on the disk insertion path. A guide member 91, which acts as a guide means for guiding 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 (al), the disk 5 inserted through the slot 3a and positioned at the predetermined position on the container 22 is inserted into the rear end of the tray 10 in the disk insertion direction. A play start switch 93 is provided so as to engage the outer periphery of the disc when pressed slightly.However, the PlayStar 1 switch 93 is placed in front of the play start switch. It engages with the outer periphery of the disk via an intermediate member 94 (also shown in FIG. 14) which is provided so as to be movable in the front-rear direction and is provided with a forward direction.

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).
In the figure, a pie spacing is applied in the time-specific direction. The arm 97 engaged with the switch holding member 99 via the detection switch 98 is also given a repulsive force in the same direction as the switch holding member 99 by this coil spring (not shown).

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

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 kick ridge 34 and the like, and a slider 3 that 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 the 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 marked @. However, this detection switch 104
is attached to the sill shift 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 to be described later in response to operation signals sent from the control section in response to these signals.

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

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

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

As shown in FIG. 15(a), as soon 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 is rotated counterclockwise by J3 in FIG. 15 (ω). Therefore, the left end of the arm 97 engages with the detection switch 98 and operates the detection switch (as shown in FIG. 15). ) Then, the motor 20 starts rotating and the moving member 14 is driven backward via the power transmission mechanism 19. However, as is clear from FIGS. 4 and 6, the lever 2 swingably provided on the tray 10
5 is engaged with the cam groove 14e formed in the moving member 14,
The moving member 14 cannot be moved relative to the tray 10, so the container 22 is locked relative to the tray 10. Therefore, due to the rotation of the motor 20, the moving member 14
．． 13, tray 10, and container 22 are only moved rearward. Note that the bin 26 slides on the right end of the chassis 7 while being engaged with the cam groove 14e.

When the tray 10 and the container 22 move backward by a predetermined amount and the disk 5 is housed in the housing 2, the bin 97b protruding from the right end of the arm 97 as shown in FIG. is the cut-up part 7 of the chassis 7
Abuts on f. In this way, the bottle 97b is cut and raised at the part 7.
By contacting f, the engagement state between arm 97 and detection switch 98 is maintained. Therefore, the motor 20 continues to rotate, and the disk 5 is further transported rearward. Along with this, the arm 97 is moved to the 15th position by the cut and raised portion 7f.
The arm 97 is rotated counterclockwise in FIG. 9C, and the engagement state of the arm 97 with the disk 5 is released. In this state, the center of rotation of the disc 5 is at the turntable 45.
It almost coincides with the axis of rotation.

At the same time as the engagement state between the arm 97 and the disc 5 is released, as shown in FIG. 7C. As a result, the tray 10 is locked with respect to the chassis 7 and therefore the housing 2, and at the same time, the locked state of the movable member 14 with respect to the tray 10, and therefore the locked state of the container 22 with respect to the tray 10 is released.

In this way, only the movable members 14 and 13 continue to move backward until the state shown in FIG. 17 is reached. That is, the bins 22a protruding from the container 22 slide along the cam holes 13d and 14d formed in the moving members 13 and 14, respectively, and as shown in FIG. Therefore, disk No. 5 is placed on the turntable 45. At this time, the disk supporting surface of the container 22 is separated from the disk 5, and the disk 5 rotates together with the turntable 45. It becomes possible.

Further, by the backward movement of only the movable member 13.14, the pin 51a protruding from the support member 51 of the clamp Ia structure slides along the cam holes 13g and 14(l) formed in the movable member 13.14, respectively. As shown in FIG. 18, the suppressing member 52 approaches the disk 5 together with the supporting member 51, and the disk 5 is clamped.The vertical movement stroke of the supporting member 51 is approximately 8.5111II.
Furthermore, the movement stroke of the container 22 in the vertical direction is approximately 6°5 mm. The movement stroke of the container 22 is 2I longer than the movement stroke of the support member 51.
II+1 is smaller, but this is due to the cam hole 13 in which the bottle 22a protruding from the container 22 is slidably engaged.
This is a result of the fact that d and 14d have a horizontal portion in the middle of the cam hole.

When the movable member 14 reaches the rear limit position at the same time as the disk 5 is clamped, a part of the movable member engages with the detection switch 104 to operate the detection switch, as shown in FIG. Motor 20 is stopped. Performance is possible in this state. Note that the moving member 13
The lever 85 is rotated in conjunction with the rearward movement of the disc, and therefore the prevention member 86 prevents double insertion of the disc from the disc insertion slot 3a.

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

When the performance ends and the kick ridge 34 reaches the movement limit V, the carriage 34 and the U-turntable 45 are stopped, and at the same time the motor 20 starts a reverse operation. Therefore, the tray 10, the movable parts 13 and 14, 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 at the time of disc loading described above. Further, the carriage 34 is also returned to its home position.

The disk 5 is thus recovered.

If it is desired to play again the disc 5 which has been played, the play start switch 93 is actuated by slightly pushing the disc in the disc insertion direction, and the play is started again.

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

Effects As detailed above, the A3 autoloading disc player according to the present invention has a slot-in type, which makes it easy to load discs, and the overall compactness makes it suitable for outdoor use. be.

Particularly, in the autoloading disc player according to the present invention, the tray (10) of the disc transport 'II IM is attached to the support member (chassis 7) at least on one side thereof so as to extend in the tray movement direction. The guide bar (15) is slidably engaged with and supported at two support points spaced apart in the tray movement direction. By guiding the tray (10) in this manner, the tray (10) is prevented from wobbling in the direction perpendicular to the tray movement direction, and the disk is transported extremely smoothly.

[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 of the internal structure of the autoloading disc player, FIG. 6 is a perspective view of the main parts of the internal structure, and FIGS. Figure 14(a). 15(a) is a partially detailed view of the internal M4''A. crests), (C) to 18 are diagrams for explaining the operation of the autoloading disc player. Explanation of symbols of main parts 2...Housing 2a, 10d...Front area 2b...Lid body 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 --- Pin 10f, IOo
, 13a, 13b, 14a. 14b, 14f, 31b, 57f, 57Q. 58o, 85b... Long hole 12.105... Bracket 13.14... Moving member 136.13g, 14d, 14a... Cam hole 1
4C...Rack part 14e...Cam full 15...Guide bar 17...Interlocking shafts 17a, 17b...Arm 19... ... Power transmission mechanism 198 ... First stage gear 19b ... Last stage gear 20 ... Motor 20a ... Worm 22 ... Combiner 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... AM screw 35a... Threaded part 35b...・Circular head 37...Screw shaft 38...Motor 39...Pulley 41...
...Plate spring 42 ... Half nut 45 ... Turntable 46 ... Spindle motor 46a ... Output shaft 46b ... Bearing section 47a ...Holding mechanism 47b...Idler 52...Press member 52a...Magnet 52b...Buffer member 52G...Yen Circumferential grooves 54, 55... Holding plates 54b, 55b... Arc parts 54G, 55c... Claws 54f, 55f, 57h, 58h, 72...
Bin members 57C, 57d, 57e, 58G, 58d. 58e... Arm portion 57.58... Synchronization plate 61... First positioning member 62... Second positioning member 64... Coil spring 71. ...Small bracket 76.77...Flexible longitudinal members 76a, 77a
...Flexible portion 78,79...Fixing member 86...Preventing member 86b...Preventing portion 91...Guiding member 91a... ...Taber section 93...Play start switch 94...
...Intermediate member 96...Support shaft 97...
・Arms 98.101, 103.104...Detection switch 99...Switch holding member 101a...Actuator Applicant Pioneer Co., Ltd. Agent Patent attorney Motohiko Kneemura Hon lb times (a+ (b)], - ~ Continued from page 1 of Figure 18 of the Wangmaku ■Inventor bottom 1) Kasuri style @ Inventor back 1) Kenji Tokorozawa-shi Hanazono 4-261 Hatachi Pioneer Co., Ltd. Tokorozawa factory

Claims (1)

[Claims] a housing having a slot into which a disc to be played is inserted; a playing means including a turntable disposed within the housing; and a disc transport mechanism transporting the disc to a playing position; a support member fixed to the housing; a tray provided movably relative to the support member in a direction substantially parallel to the rotating surface of the turntable; and a tray provided to the tray in a direction substantially perpendicular to the tray movement direction. a container that is movably provided and supports the disk; a movable member that is movably provided in the tray moving direction with respect to the support member and engages with the container via a cam hole; and a driving force for the movable member. the tray is supported by the supporting member at both sides in the direction of movement of the tray, and at least one of the both sides is supported by the supporting member to cause the tray to move. An autoloading disc player characterized in that the autoloading disc player is slidably engaged with and supported at two supporting points spaced apart in the tray movement direction by a guide bar attached to extend in the tray movement direction.