JPS6180555A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To attain smooth ejection even with a warp to a disc by forming a recess to the center of a plate guide member guiding the disc to a slot of a housing at ejection of the disc. CONSTITUTION:The plate form guide member 110 having an opening 110a is provided to the slot of a housing from/to which a disc is ejected/inserted. Then a recess 110b is formed to the center in the lengthwise direction of the guide member 110. Thus, even when a warp due to bent or self-weight exists to the disc, the tip of the disc enters at first the recess 110b, is guided to the opening 110a smoothly by the operation of the recess 110b and then guided by the guide member 110. Thus, even when the disc has a warp, the disc is ejected surely and smoothly.

Description

Detailed Description of the Invention Technical Field The present invention relates to a disc play 17, and more particularly to an autoloading disc equipped with a disc transport mechanism that automatically transports the disc to a performance position and automatically transports the disc to a predetermined position after the performance is finished. Regarding the player.

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

However, since such conventional disc players are designed 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. Particularly when considering a vehicle-mounted disc player, it is often used while driving, so it is desirable to be able to transport the disc reliably.

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 transport discs reliably and smoothly.

The autoloading disc player according to the present invention comprises:
A housing having a slot for inserting and ejecting a disc, a playing means provided in the housing, and a disc transport structure that transports the disc to a playing position, including a disc holding part that supports the disc at a predetermined position. a plate-shaped guide member disposed close to the slot in the housing and guiding the disc to the slot during ejection through a longitudinal opening formed along the slot, the guide member guiding the disc into the slot through the longitudinal opening formed along the slot; It is characterized by having four parts approximately at the center of the lower end of the part.

Friend-LJL Hereinafter, a vehicle-mounted autoloading disc player as an embodiment of the present invention will be described with reference to the accompanying drawings.

In the figure, reference numeral 1 indicates the entire 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 provided within the housing 2. As shown in FIGS. In addition,
The chassis 7 consists of a main body 7a and a sub-chassis 7b fixed to the front end of the main body. As shown in FIGS. 1 and 12, the chassis 7 is supported by the housing 2 via four anti-photograph members 8 made of rubber or the like. However, in FIG. 1, only the two anti-photograph members 8 on the left side are shown. Chassis 7 has a turntable of 4fA, which will be described later.
A tray 10 is provided so as to be movable in a direction parallel to Wi, in this case in the front-back direction (in the direction of arrow Y and the opposite direction). As is particularly clear in FIG. 6, the tray 10 is composed of a main body 10a formed in a straight line shape and a side wall member 10b screwed to the right end of the main body. A bracket 12 is fixed to the left end of the chassis 7, and a bin 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. He is humiliated by engaging freely.

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 1°. -ing 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
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 having arms 17a and 17b fixed to both ends thereof is provided at the rear end of the tray 10 and extends in the left-right direction, and is rotatably supported by the tray 10. Bins 17c and 17d project from the inner surfaces of the distal ends of the arms 17a and 17b, respectively, and each of the bins has an elongated hole i3b extending vertically at the rear end of the moving member 13.14. i4b, respectively, in a slidable manner. At the right end of the chassis 7, a power transmission rock 79 is provided which is comprised of a plurality of rotatably supported gears. A motor 20 is installed in front of the power transmission gate structure 19.
is fixedly installed on the output shaft of the motor, as is particularly clear in FIG. The attached worm 20a meshes 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, 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 carrying a disk 5 is arranged below the tray 10 at a position sandwiched by the moving members 13, 14. This container 22, tray 10, and moving member 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 222 in order to avoid direct contact between the disk supporting surface and the disk 5. A total of four bins 22a, one pair each at both left and right ends of the container 22, are provided extending in the left and right direction. The container 22 is configured such that each of the bins 22a is slidably engaged with four elongated holes 10f formed in the tray 10 to extend in the vertical direction. It is supported so as to be movable within a predetermined range. The bin 22a of the container 22 also has the long hole 10.
After passing through f, 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 have a tapered portion that slopes upward in the disk insertion direction, that is, 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, and an end of the tapered portion in the disk insertion direction, that is, the rear end. It is constituted by a horizontal portion that continues and extends rearward, and a tapered portion that continues from the rear end of the horizontal portion and extends parallel to the tapered portion. In other words, 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 four part 7c is formed at the right end of the main body 7a of the chassis 7. As shown in FIGS. On the other hand, a cam groove 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 portions 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 148 projects from the swinging end of the lever. That is, the bottle 26 has a concave portion 7C and a concave portion 7C.

It is adapted to selectively engage with the cam groove 148. Further, the movable member 14 is formed to extend forward continuously from the cam groove 14e, and is slidably engaged with the bin 26, so that the movable member 14 is provided after the tray 10 reaches the predetermined position on the turntable. A long hole 14'' is formed to allow the movement of the rod 14.

These recessed portions 7c, cam grooves 14e1, elongated holes 14f, and bins 2
6, the container 22 is locked to the tray 10 until the tray 10 reaches a predetermined position on the turntable, and when the tray 10 reaches the predetermined position, the container 22 is released from the locked state with the tray 10, and A locking/unlocking means for locking the tray 10 to the housing 2 is configured.

Further, the lock/release means, the chassis 7, and the tray 1
0, the container 22, the movable members 13 and 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. A disk transport mechanism is configured to transport the disc onto the turntable.

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

As shown in FIG. 6, a support member 28 having a substantially U-shape as a whole is disposed on the lower surface of the chassis 7, which is a part of the disk transport mechanism, and is made of flexible rubber or the like. The chassis 7 is
is attached to. Two guide shafts 30a and 30b are fixed to the support member 28, which extend in parallel to the 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, there is an objective lens 33a that irradiates the information recording surface of the disc 5 with a laser spot light.
An optical pickup means (other than the objective lens 33a is not shown) for reading information from the disk is carried. Further, the slider 31 and the case 33 are collectively referred to as a kill ridge 34.

Here, for example, as shown in FIG. 2, the tray 10 forming a part of the disk transport mechanism has a carriage 34 in which the disk transport mechanism is in the pre-disk transport position (the state shown in FIG. 2). A circular opening 10d is formed which faces the objective lens 33a when the instrument is at the home position, that is, the rest position before playing. This opening 10d removes dust etc. attached to the surface of the objective lens 33a.
This is provided for wiping the disk transport mechanism without removing it. Therefore, although not described in detail, this is a member that constitutes a part of the disc transport mechanism, and is a member that is interposed between the tray 10 and the objective lens 33a when the disc transport mechanism and carriage 34 are in the pre-performance position described above. Needless to say, an opening similar to the opening 10d is formed in the opening 10d. Further, as shown in FIG. 1, a circular opening 2a is also formed on the upper surface of the housing 2. Like the opening 10d described above, this opening 2a is also positioned to face the objective lens 33a when the disk transport mechanism and the kill ridge 34 are in the above-described rest position before playing. Housing 2 also has
A lid body 2b that can be opened from the opening 2a is fixed with a screw. By providing such an opening in the housing 2, the objective lens 33a can be cleaned without removing the housing. Although not described in detail, it is also possible to adjust the light irradiation power of the optical pickup means through the 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 the recirculating tube of the case 33, and a threaded portion 35 is provided in the elongated hole.
a is a circular head 35 of an offset screw 35 that is screwed into the case 33;
b is fitted. As the name suggests, the threaded part 3 of the biased screw 35
The axial center of the circular head 35b is offset from the axial center of the circular head 35b. That is, by rotating the biasing screw 35, the case 33 is rotated slightly around the support screw 31a.The biasing screw 35 and the circular head 35b of the biasing screw are fitted together. The matching elongated hole 31b constitutes an adjusting means for adjusting the rotation angle position of the case 33, that is, adjusting the so-called tangential direction of the optical pickup means (not shown) provided in the case. has been done. In addition,
After this adjustment is completed, it is fixed with 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 38 is arranged in front of the screw shaft 37.
is configured to be rotationally driven by the motor via power transmission means including a pulley 39 and the like. As is particularly clear in FIG. 11, the slider 31 has a leaf spring 4
1 is fixed in the form of a cantilever beam, and a half nut 42 screwed onto the screw shaft 37 is attached to the free end of the leaf spring.
is permanently installed.

The drive for driving the sharp ridge 34 is by the above-mentioned screw shaft 37, the motor 38, the above-mentioned power transmission means including the pulley 39, the leaf spring 41, the half nut 42, and the peripheral small members related thereto. ! A J structure is constructed.

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 its rest position before playing, the turntable 45 and spindle motor 46 are fitted into the notch 33b.

As shown in FIGS. 7 and 8, an idler 47b rotatably supported by a holding mechanism 47a is brought into contact with the output shaft 46a of the spindle motor 46.

These holding mechanism 47a and idler 47b constitute a coupling means that brings the output shaft 46a and the bearing portion 46b that supports it into close contact. Output shaft 46a and bearing section 4
A gap of approximately 10 μm normally occurs between the output shaft 46a and the turntable 45, but by providing the above-mentioned contact means, this gap is corrected and the rotation of the output shaft 46a, and thus the turntable 45, becomes accurate and smooth. be.

The above-mentioned support member 28 and guide shafts 30a, 3Q
b, the drive mechanism including the carriage 34 and 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. These 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, that is, the positions where the vibration isolating member 29 are arranged are located in an arc centered on the midpoint of the movement trajectory of the center of gravity of the carriage 34 and the rotation axis of the turntable 45. placed equidistant above.

The two anti-vibration members are provided to protect the playing means from external vibrations such as the vibration of the heavy body of the fh Dr on which the auto-loading disc play ψ is mounted. By arranging the points as described above and providing the vibration isolating member 29 at the support points, 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 two vibration isolators are provided at the support points, a large vibration isolation effect can be obtained. is obtained.

Next, a description will be given of the clamp IRIf4 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 pins 51a slidably engages with four elongated holes 10o 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, it is supported so as to be movable within a predetermined range in the vertical direction. The bin 51a of the support member 51 also supports the tray 10.
The movable member 13.
It is slidably engaged with cam holes 13g and 149 formed in 14, respectively. Cam holes 13q and 14(l
The support member 51 is inclined linearly in the direction away from the turntable 45, that is, from the front to the rear. In other words, the support member 51 is configured to move up and down with respect to the turntable 45 as the movable members 13 and 14 move back and forth.

Note that the cam holes i3d formed in the moving members 13 and 14
, iao and 14d and 14g, Conte dog 22
The cam hole 13 (1, i4d is the first
This is called a cam hole, and the pin 51a of the support member 51 is called a cam hole.
The cam holes 13g and 14 (I is referred to as the second cam hole) that engage with are almost equal.

A pressing member 52 is rotatably provided on the support member 51 and cooperates with the turntable 45 to perform a disk clamping action. Note that the position shown in FIG.
1 unclamped position. Further, the position of the support member 51 when the support member 51 moves downward by a predetermined amount and the suppression member 52 comes into contact with the surface of the disk 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 pressing member 52 has a ring-shaped magnet 52a, and the magnetic force of the magnet forms a disk clamp.

Further, the pressing member 52 and the supporting member 51 that rotatably supports the pressing member 52 are made of a magnetic material such as a steel plate, and when the supporting member 51 is in the non-clamped position, the pressing member 52 is moved to the supporting member 51 by the magnetic force of the magnet 52a. It is designed to be absorbed by Also shown in FIG. 6, a buffer member 52 made of felt or the like is provided on the upper surface of the pressing member 52.
b is attached to prevent the upper surface of the pressing member 52 from coming into direct contact with the housing 2 due to vibration of the supporting member 51 when it is in the non-clamped position. (EI L, This buffer member 52 is not limited to the upper surface of the pressing member 52, but may be provided on a part of the housing 2 that faces the suppressing member 52 when the supporting member 51 is in the above-mentioned 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 attached to. A circumferential groove 52c (
The circular arc portions 54b and 55b are formed to be fitted into the circumferential groove 52 of the pressing member 52.
Two protruding claws 54c and 55C that can be engaged with the bottom surface of C are provided.

A pair of left and right synchronization plates 57.58 are also provided on the lower surface of the support member 51 behind the clamping plates 54.55, and are rotatably attached to the support member 51 via bins 57a and 58a, respectively. ing. Each synchronizing plate 57, 58 has three arm portions 57c, 57d, 57el and 58c, 5.
8d and 58e. An elongated hole 57 is formed at the tip of the arm portion 57c, and a bottle 58 protruding from the tip of the arm portion 58c is slidably engaged therein. Elongated holes 57a and 58g are also formed at the tips of the arm portions 57d and 58d, and these elongated holes are slidably engaged with the bins 54e and 55e protruding from the clamping plates 54 and 55, respectively. In other words, the synchronizing plates 57 and 58 are configured to synchronize the operations of the clamps 154 and 55.
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 position determining member 62. In other words, 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 engages the outer periphery of the pressing member 52 at two claws 54c, 55c). It is possible.

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

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

Further, the positioning means, the pressing member 52, and the supporting member 5
1 and related peripheral small members constitute a clamping mechanism that clamps the disc 5 conveyed onto the performance position, that is, the turntable 45.

The positioning means including the above-mentioned positioning members 61, 62, etc. not only positions the 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.
．． 55 and the lower surfaces of the synchronizing plates 57 and 58, Nihabin members 54r, 55f, 57h and CF 38h are provided in a protruding manner, respectively. These bin members 54''.

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

Here, as shown in FIG. 6, each bottle member 54r
, 55f, 57h, and 58h are tapered to reduce their diameters toward the disk holding portion 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, 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 when the tray 10 is at a predetermined position on the turntable 45, the center of rotation of the disk 5 supported by the container 22 that moves together with the tray is on the turntable 45. It is arranged so that it engages with the front end of a pawl 73 screwed to the tip of the arm portion 58e of the synchronizing plate 58, which is a component of the positioning means, when the synchronizing plate 58 reaches a position substantially coinciding with the rotation axis of the positioning means. .

That is, the positioning members 61 and 62 are operated as the moving member 14 moves when the tray 10 reaches the predetermined position, and the positioning members 61 and 62: .

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 bin member 72 provided on the moving member 14
5, that is, a taper is formed that contracts downward. The positioning means (consisting of positioning members 61, 62, etc.) for positioning the disk 5 at a predetermined position on the container 22 moves around while contacting the bin member 72, and moves together with the container t22 in a direction substantially perpendicular to the tray movement direction. However, since the pin member 72 is tapered as described above, the contact between the pin member and the positioning means is a point contact. Therefore, the resistance caused by the contact of the bean tray becomes extremely small, and the disk loading and ejecting operations become smooth. Further, the positioning means receives a thrust force due to a component force generated by the taper action of the pin member 72.

Next, each W mechanism that operates when the disk 5 is inserted or ejected 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 so that their gH portions face each other and close the slot 3a on their main surfaces. Each flexible longitudinal member 76° 77 has its other end in the short direction, that is, the non-opposed 1ll.
In the lI@ section, a pair of fixing members 78.
79 is attached to the front panel 3.

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

Each of the opposing ends of the flexible elongated members 76 and 77 is chamfered in an arc shape, so that the sliding contact between each of the flexible elongated 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.

Further inside the flexible longitudinal members 76, 77, a plate-shaped guide member 110 as shown in FIG. 19 is arranged. This guide member 110 has an opening 110a formed along the slot 3a, and the opening 110a functions to guide the disk to the slot 3a during ejection. That is, when the disk is ejected, the distal end of the disk in the ejection direction is first aligned with the guide member 110.
The guide member 11 then enters the opening 110a of the guide member 11.
Smoothly 1 into slot 3a by being guided by 0
．． : It is guided. This guide member 110 may be arranged instead of the flexible longitudinal member 76,77.

Here, if the disk is warped or flexed due to its own weight, the leading end of the disk in the ejection direction
It is located below the lower end of the opening 110a and smoothly enters the opening 110a.

In consideration of such a case, a recess 110b is formed in the guide member 110 approximately at the center of the lower end of the opening 110a, so that the leading end of the disc in the ejection direction is aligned with the opening 110a of the guide member 110. Even if the disc is located below the bottom end of the disc, the leading edge of the disc first enters the recess 110b,
Thereafter, it is smoothly guided to the opening 110a by the action of the recess 110b.

A cloth-like elastic material 111 made of felt or the like is attached to the inside of the guide member 110, and a slit 11 is formed in the elastic material 111 so that the disk can smoothly pass through the elastic material 111.
1a is formed. This elastic material 111 functions to prevent dust and the like from entering into the housing 2, and also functions as a protective material or a buffer material when the disc is ejected.

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 pin 85 is disposed on the right side of the bracket 12.
5a, it is rotatably attached to the bracket 12 at approximately the center in the longitudinal direction. This lever 85
is adapted to rotate in conjunction with the moving member 13. On the other hand, a prevention member 86 is provided on the fMi side of the lever 85 so as to be movable in the vertical direction (in the direction of arrow Z and the opposite direction). A bottle 8 is attached to the left end of the prevention member 86.
6a is provided protrudingly, and the bottle is engaged in a long hole 85b formed in the front end of the lever 85 so as to be freely movable. These lever 85 and prevention member 86 constitute a disk double insertion prevention means for preventing double insertion of disks from the slot 3a. That is, as the prevention member 86 moves up and down with the rotation of the lever 85, the prevention portion 86b provided on the prevention member crosses the slot 3a and prevents the insertion of the disk from the slot 3a. -ing

By the way, the lever 85 is designed to be linked to the movement of the moving member 13, which is a component of the disk transport mechanism described above, and in this way, a part of the power for transporting the disk is transferred to the disk double insertion prevention means. By using this as the power to drive the disk double insertion prevention means, a special drive mechanism for driving the disk double insertion prevention 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, 14(a) and 14(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 portion 091 serving as a guide means for guiding the disc to a predetermined position is disposed to face the disk supporting 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 in front of the play start switch so as to be movable in the front and back direction, and is provided with a forward piascus. and engages with the outer periphery of the disk.

As shown in FIG. 2, a support shaft 96 extending in the vertical direction is fixed to the lower surface of the right end of the main body 10a of the tray 10. An arm 97 formed in a substantially dogleg shape is rotatably attached to the support shaft 96 at substantially the center thereof. Bins 97a, 97 are provided on the lower surface of both ends of the arm 97.
The bins 97a on the left end side can be engaged with the outer periphery of the disk 5 positioned on the container 22. Nine switch holding members that hold the detection switch 98 so as to be able to engage with the left end portion of the arm 97 are also swingably attached to the support @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 97, detection switch 98,
The switch holding member 99 and the peripheral small members related thereto constitute a mechanical detection means for detecting that the disk 5 is positioned on the container 22. Further, when the tray 10 moves a predetermined amount backward from the position shown in FIG. 2 and reaches a predetermined position, the arm 97
A bottle 97b protruding from the right end of the chassis 7 is configured to come into contact with a cut-and-raised portion 7 provided near the rear end of the chassis 7.

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

Note that 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 each of these signals.

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

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

First, insert the disk 5 into the slot 3 as shown in FIG.
Insert into the housing 2 from a. At the same time as the disk 5 is inserted through the slot 3a, the disk 5 is inserted into the bin member 54 provided on the positioning member 61, 62 shown in FIG. 2, for example.
f and 55f, and advances while pushing both positioning members 61 and 62 left and right. When the center of rotation of the disc 5 crosses the line connecting the axes of the left and right bin members 54f and 55f, both bin members 54r and 55f are biased toward the outer periphery of the disc, so even if you release your hand, the disc will not move. 5 is drawn into the housing 2. Further, at this time, the guide member 91 effectively guides the disk 5, and the disk 5 is positioned at a predetermined position on the container 22. Note that the disk 5 includes four bin members 54f, 55f,
Since the disk is positioned while being held between the disks 57h and 58h, once positioned, the disk will not shift due to external imaging such as vibration of the vehicle body.

As shown in FIG. 15 (ω, (b)), 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 is rotated, for example, in the counterclockwise direction at ω in FIG. The motor 20 starts rotating and transfers to the V member 1 via the power transmission mechanism 19.
4 is driven backwards. However, as is clear from FIGS. 4 and 6, the bin 26 protruding from the swinging end of the lever 25 movably provided on the tray 10 is connected to the cam formed on the movable member 14. Groove 14e1. : Due to the engagement, the moving part 4414 can be moved relative to the tray 10, thus the container 22 is locked relative to the tray 10. Therefore, by the rotation of the motor 20,
Only the moving member 14, 13, the tray 10 and the antenna 22 are moved rearward. The pin 26 moves on the right end of the chassis 7 while being engaged with the cam groove 14e.

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

At the same time that the engagement between the arm 97 and the disk 5 is released, the bin 26 leaves the cam groove 14e and enters the recess 7C formed in the chassis 7, as shown in FIG. This locks the tray 10 with respect to the chassis 7 and therefore the housing 2, and at the same time locks the tray 10 with respect to the moving member 14.
locked state with respect to the tray 10, therefore, the container 2
The locked state of the second tray 10 is released.

In this way, only the movable members 14 and 13 continue to move backward until the state shown in FIG. 17 is reached. That is, the bottle 22a protruding from the container 22 vibrates 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 time, the disk supporting surface of the container 22 separates from the disk 5, and the disk 5 becomes rotatable together with the turntable 45.

Also, by moving only the movable members 13 and 14 backward, the bottle 51a protruding from the support member 51 of the clamp mechanism is
By sliding along the cam holes 13g and 14 (+) formed in the moving parts 013 and 14, respectively, the pressing member 52 approaches the disk 5 together with the supporting member 51 as shown in FIG.
Disk 5 is clamped. Note that the movement stroke of the support member 51 in the vertical direction is approximately 8,51111. Further, the movement stroke of the container 22 in the vertical direction is about 6°5 sun. The movement stroke of the container 22 is 2nun longer than the movement stroke of the support member 51.
Although the size is smaller, this is because the cam holes 13d and 14 engage with which the bottle 22a protruding from the container 22 can move freely.
This is a result of d having 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 disk, so that the prevention member 86 prevents double insertion of the disk from the disk 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 tray 10, the moving members 13, 14, the container 22, and the pressing member 52 are returned to the rest position before playing through a process that is completely opposite to the operation at the time of disc loading described above. Additionally, Killeridge 34 is also returned to its home position.

In this way, the disk 5 is recovered.

In addition, if you want to replay disc 5 that has already been played,
''; At the fourth turn, by slightly pushing the disc in the disc insertion direction, the play start switch 93 is operated and the play is performed again.

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

Effects of the Invention 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 compactness makes it suitable for outdoor use, especially for in-vehicle use. It is suitable for use.

In particular, in the autoloading disc player according to the present invention, a guide member having an opening formed along the slot is provided inside the slot, and this opening guides the disc to be ejected to the slot. Since the four parts are formed approximately at the center of the lower end of the opening, even if the tip of the disc is bent by the own vehicle or the like at the time of ejection, or the disc is warped, it can be guided to the slot reliably and smoothly.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing the entire in-vehicle autoloading disc player according to the present invention, FIG. 2, FIG.
4 and 5 are a plan view, a front view, a left side view, and a right side view of the internal structure of the autoloading disc player, FIG. 6 is a perspective view of the main parts of the internal structure, and FIGS. Figure 14(a). (b), (C1 is a partially detailed view of the internal structure, Fig. 15 (
Field. Figures C1 to 18 are diagrams for explaining the operation of the autoloading disc player, and Figure 19 is a perspective view showing a guide member disposed inside the slot. 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...Body 7b...
... Sub-chassis 7C ... Recessed portion 7f ... Cut-and-raised portion 8 ... Vibration isolating member 10 ... Tray 10a ... Main body 10b・・・・・・
- Side wall members 10c, 10e, 17c, 17d, 22a. 26.51a, 54a, 54e, 55a. 55e, 57a, 58a, 58f, 85a. 86a, 97a, 97b --- Bin 10f, IO
Q, 13a, 13b, 14a. 14b, 14f, 31b, 57f, 57Q. 58Q, 85b... Long hole 12.105... Bracket 13.14... Moving member 13d, 13Q, 14d, 14Q... Cam hole 1
4G... Rack part 14e... Cam groove 15... Guide bar 17... Interlocking shafts 17a, 17b... One arm... ...Power transmission mechanism 19a...First stage gear 19b...Final stage gear 20...Motor 20a...
Warm 22... Container 23...
...Protective film 25.85...Lever 28.51...Support member 29...Vibration isolation members 30a, 30b...Guide shaft 31...・
...Sliders 31a, 31c...Screws 31e...Protrusions 33...Case 33a...Objective lens 33b...
...Notch 34...Killed ridge 35...
...Odd thread 35a...Threaded part
35b...Circular head 37...Screw shaft 38...Motor 39...Pulley 4
1...Plate spring 42...Half nut 45...Turntable 46...Spindle motor 46a...Output shaft 46b...・
Bearing portion 47a... Holding mechanism 47t)...
...Idler 52...Press member 52a...Magnet 52k)...Buffer member 52c...
・Circumferential grooves 54.55... Holding plates 54b, 55b... Arc parts 54C, 55G... Claws 54f, 55f, 57h, 58h, 72... - Bin members 57c, 57d, 57e, 58c, 58d. 58e...Arm portion 57.58...Synchronization plate 61...First positioning member 62...Second position;a determining 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 110 ... Guide member

Claims (1)

[Claims] a housing provided with a slot for inserting and ejecting a disc; a playing means provided within the housing; a disc transport mechanism that transports the disc to a performance position, including a disc carrying section that supports the disc at a predetermined position; a plate-shaped guide member disposed close to the slot in the housing and guiding the disc to the slot during ejection through a longitudinal opening formed along the slot, the guide member having a longitudinal opening formed along the slot; An autoloading disc player having a recessed portion approximately at the center of the lower end thereof.