JPS6180552A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To prevent shaking at movement of a carriage by providing an engagement member engaged with an end face of carriage movement direction when the carriage supporting an optical pickup reaches the moving limit. CONSTITUTION:The carriage 34 supporting the optical pickup means is fitted closely to a couple of guide shafts 30a and 30b and a half nut 42 is screwed to a screw shaft 37. A pin 111 as an engagement member engaging with an end face in the carriage moving direction when the carriage 34 reaches the moving limit is provided near the shaft 30a. Thus, when the carriage 34 approaches the moving limit and the movement is restricted, slight shaking is caused, but since the pin 111 is provided, production of shaking is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a disc player 17, and more particularly to an auto-rowing disc player equipped with a disc transport mechanism for automatically transporting discs to play positions.

11E1 Digital audio disc A disc player for playing information recording discs has already been developed and has recently become popular in ordinary households.

However, such conventional disk plates are designed with the assumption that they will be installed in a quiet place indoors, and therefore are not suitable for outdoor use. Requirements for the disc play V used outdoors include ease of disc loading, overall small size, and good vibration resistance and anti-Iy property.

SUMMARY OF THE INVENTION The object of the present invention is suitable for outdoor use.
It is an object of the present invention to provide a disk play A/ having particularly good vibration resistance.

The autoloading disc player according to the present invention comprises:
A disc carrier that transports the disc to a performance position, including a housing having a slot into which a disc to be played is inserted, a performance means installed in the housing, and a disc carrier for supporting the disc in a predetermined position. includes a mechanism, the playing means includes a carriage carrying an optical pickup means, a guide means for guiding the carriage, and a drive mechanism for driving the carriage, and the guide means includes a drive mechanism for driving the carriage; It consists of a pair of guide shafts that are parallel to each other so as to sandwich the V-ridge described in 11q on both sides in the moving direction of the carriage. The pair of guide shafts has a drive source that rotationally drives the screw shaft, a temporary spring fixed to the carriage, and a half nut fixed to a predetermined position of the leaf spring and screwed to the screw shaft. one is closely fitted into the gear 17 ridge on the screw shaft side, and the other is in contact with the sharp ridge to support the carriage, and is fixed to the housing at fJ so that the carriage is at the movement limit position. The present invention is characterized in that an engaging member is provided that engages with an end surface of the carriage in the moving direction near at least one of the one and the other guide shafts when the carriage reaches the position.

Song JILJL Hereinafter, an in-vehicle O1-loading disc player as an embodiment of the present invention will be described with reference to the accompanying drawings.

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

As shown in FIG. 1, a front panel 3 constituting 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. The disk 5 is of a type that records and reads signals using laser light, and has an outer diameter of about 12 cm. The front panel 3 is also provided with a group of operation buttons 6 for operating the disc player, such as play start and eject.

As shown in FIGS. 2 to 6, 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. The J, uni, and τl-shifts shown in FIGS. 1 and 12 are supported by a housing 2 via four vibration-isolating members 8 made of rubber or the like.

However, in FIG. 1, only the two vibration isolators 8 on the left side are shown. 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 the lii+backward direction, in the direction of arrow Y, and in the opposite direction). As is particularly clear in FIG. 6, the tray 10 is composed of an L-shaped main body 10a and a side wall member 10b screwed to the right end of the main body. A bracket 12 is fixed to the left end of the chassis 7, and the left 9 of the 1-lay 10; The formed elongated hole 12a is supported by slidably engaging with the IS.

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 has a kite bar 15 fixedly attached to the right side of the chassis 7 so as to extend in the tray moving direction, that is, in the front-back direction.
It is attached to the right end of the tray 10 which is movably supported by 1 (=J).

More specifically, the movable member 14 is supported by a long hole 14a formed in the movable part H so as to be close to each other in the front and rear surfaces, and movably engaged with a bin 10c protruding from the right end of the tray 10. There is. Further, the left moving member 13 is located between the tray 1o and the bracket 12, and a long hole 1 is formed in the moving member so as to extend in the front-rear direction.
3a is supported by slidably engaging with a bin 10c provided at the left end of the tray 10. In addition,
The right end of the tray 10 is supported by a guide bar 15 so as to be freely engaged with the 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 1o. Arm 17a,
Pins 17c and 17d are protruded from the inner surface of the distal end of 17b, respectively, and the pins 17c and 17d are provided with elongated holes 13b and 17d formed in the respective rear ends of the movable members 13 and 1/l in the vertical direction.
4b, respectively, and are slidably engaged with each other. A power transmission mechanism 19 consisting of several gears rotatably supported is provided at the right end of the shifter. A motor 2o is fixedly installed in front of the power transmission mechanism 19, and as is particularly clear at d3 in FIG. It meshes with the first stage vehicles 19a.

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 positions where the tray 1o is slidably engaged with and supported by the guide bar 15.

The above motor 20, power transmission mechanism 19, and arm 17
The interlocking jaws 1 to 17 including the members a, 17b, etc. constitute a driving force applying means for applying driving force to the moving members 13 and 14.

Below the tray 10, a container 22 holding the disk 5 is arranged between the moving members 13 and 14.

The container 22, the tray 10, and the f-hyperactive members 13 and 14 constitute a disk holding section.

It should be noted that a protective film 23 made of felt or the like is attached to the disk holding portion of the container 22 in order to avoid direct contact between the disk holding surface and the disk 5. container 22
A total of four pins 22a, one pair each, are provided at both left and right ends of the pins 22a, extending in the left-right direction. The container 22 is configured such that each of the bins 22a rotatably engages with four elongated holes 10'' formed in the tray 10 extending in the vertical direction. It is supported movably within a predetermined range in the vertical direction.The pin 22a of the container 22 also passes through the elongated hole 10f. The cam holes 13d and 14 [J are tapered holes that are inclined upward in the disk insertion direction, that is, from the front to the rear, that is, in the direction in which the container 22 is N1 away from the turntable, which will be described later. a horizontal part that extends rearward and continuous with the end of the tapered part in the disk insertion direction, that is, the rear end; and a tapered part that extends parallel to the tapered part at the rear end of the horizontal part; In other words, the moving member 13
The container 22 is configured to move up and down as the containers 14 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 carried by the container 22 is placed.
The container 22 is locked to the tray 10 until the center of rotation of the turntable is moved to a position that substantially coincides with the rotation axis of the turntable, and when the tray 10 reaches the predetermined position, the container 22 is locked with the tray holder O. The locking/releasing means for releasing the state and locking the tray 10 with respect to the housing 2 will be explained.

As shown in FIGS. 4 and 6, a four part 7G is formed at the right end of the main body 7a of the siresif. -1 no,
The right moving member 14 has a cam groove 14e so that when the tray 10 is at a predetermined position on the turntable, the position J5 in the tray movement direction coincides with the position of the fourth part 7c.
is formed.

A lever 25 is swingably provided at the rear end of the tray 10, and a pin 26 protruding from the distal end of the lever to engage with the recess 7C and the cam crystal 148. That is, the pin 26 is adapted to selectively engage with the recess 7C and the cam groove 14c. In addition, moving member 1
4 is formed to extend forward in continuation with the cam groove 140 and is operatively engaged with the pin 26 to enable movement of the moving member 14 after the tray 10 reaches the predetermined position on the turntable. A long hole 14r is formed.

These four parts 7c, cam'if & 14e, elongated hole 14
and pin 26 to keep the container 22 on the tray 10 until the tray 10 reaches a predetermined position on the turntable.
A locking/releasing means is configured to lock the container 22 against the tray 10 and lock the tray 10 against the housing 2 when the tray 10 reaches the predetermined position. .

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 (t1) is provided on 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 structure, and is made of flexible rubber. It is attached to the chassis 7 via two of the four vibration isolating members. Two guide shafts 30a and 30b are fixed to the support member 28, which extend in parallel to the rotating surface of the turntable, in this case in the front-back direction, and serve as guide means. A slider 31 formed in a substantially U-shape is movably supported by the guide shafts 30a and 30b at both sides in the direction of movement, that is, at both left and right ends.

As shown in FIGS. 9 and 10, the slider 31 has a screw 31 extending in the direction of movement of the slider, that is, in the front-rear direction.
A is provided, and the rectangular parallelepiped case 33 is rotatably held by the screw.In other words, the case 33 rotates in a plane perpendicular to the slider movement direction.4f Also, inside the case 33 is an objective lens y that irradiates the information recording surface of the disc 5 with a lena spot light.
') 3a and carries an optical pickup means (not shown except for the objective lens 33a) for reading information from the disc. 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 disk conveyance is partially horizontal, and the tray 10 has grooves for disk conveyance at the front position of the disk lIQ (in the state shown in FIG. 2). ) and the carriage 34 is at the home position, that is, at the rest position before 'cyi', a circular m1 opening 10d is formed which faces the objective lens 33a. This opening 10d is provided in order to wipe off any debris that has stuck to the surface of the objective lens 33a without removing the disk transport mechanism. Therefore, although not described in detail, the tray 10 and the objective lens 33a are members constituting a part of the disc transport mechanism, and when the disc transport mechanism and carriage 34 are in the pre-performance position described above, the tray 10 and the objective lens 33a are
It goes without saying that an opening similar to the frontage portion 10d is also formed in the member interposed between the two. Further, as shown in FIG. 1, a circular opening 2a is also formed on the upper surface of the housing 2. Similar to the opening 1QtJ described above, this opening 2a is also used when the disc transport mechanism and the :1 cartridge 34 are in the above-mentioned rest position before playing.
It is positioned so as to face the single object lens 3.3a. A lid 2b that can close the opening 2a is also fixed to the housing 2 with screws. Is there something like this in housing 2? By providing the opening i1, it is possible to clean (hang) the objective lens 33a without removing the housing. It is also possible to adjust the light irradiation power of the optical pickup means through, etc.

However, as shown in FIGS. 9 and 10, the end of the slider 31 in the moving +h direction is provided with a long hole 3 along the left and right sides in a plane perpendicular to the slider moving direction.
1b is formed. The elongated hole 31b is provided corresponding to one end of the rotation of the case 33, and the elongated hole has a threaded portion 3.
5a is the circular head 3 of the offset screw 35 screwed into the case 33;
5b 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 35b. That is, by rotating this biased screw 35, the case 33 is rotated little by little around the support screw 31a.
The rotation angle position of the case 33 can be adjusted by the long hole 31b that fits fiW, that is, 1. Adjustment means force t for adjusting the so-called tangential direction of the optical pickup means (L'?l'' in the figure) provided in the case
4! has been completed. After completing this adjustment, fix with the screw 31c.

As shown in FIGS. 6 and 11, a screw shaft 37 is rotatably attached to the support member 28 at both ends thereof, and is arranged parallel to the guide shafts 30a and 30b. A motor 38 is disposed on the 1ja side of the screw shaft 37, and the screw shaft 37 is rotationally driven by the motor via a power transmission means including a pulley 39 and the like. 11th
As particularly clearly indicated by Dl in the figure, a leaf spring 41 is fixedly fixed to the slider 31 in the form of a cantilever, and a half nut 42 screwed onto the screw shaft 37 is attached to the free end of the leaf spring. It is permanently installed.

The screw shaft 37, the motor 38, the power transmission means including the pulley 39, the temporary spring 41, the half nut 42, and 13! A drive mechanism for driving the carriage 34 is constituted by the continuous small peripheral members.

Moving carriage 34! A turntable 45 is arranged at a position on the Nobira line of the ll1lIA trace and sandwiched between the carriage and the drive mechanism that drives the carriage, and is fixed to the support part U' 28. . As is clear in FIG. 7, the turntable 45
is directly rotationally driven by a spindle motor 46 which is a driving source and is provided to support the turntable.

As shown in FIGS. 6 and 9, the carriage 34
A notch 33b is formed in the case 33, which is a part of the turntable 45 and the spindle motor 46, into which a portion of the turntable 45 and the spindle motor 46 facing the case 33 can be fitted. Carriage 34. The turntable 45 and spindle motor 46 are inserted into the notch 33b when the carriage is at its home position, that is, the rest position before playing.

As shown in FIGS. 7 and 8, an idler 47b rotatably supported by a holder flIX 47a is brought into contact with the output shaft 46a of the spindle motor 46. The output shaft 46a and the bearing part 4 that supports it are held by the output shaft 46a and the idler 47b
A close contact means is configured to bring the contact point 6b into close contact with the contact member 6b. Normally, a gap of approximately 10 μm is formed between the output shaft 46a and the bearing portion 46b, but by providing the above contact means, this gap is corrected and the output shaft 46a,
Therefore, the turntable 45 can rotate accurately and smoothly.

The above-mentioned support member 28 and guide shafts 30a, 3Q
b, the above-mentioned drive including the kill ridge 34, and the motor 38! l
A performance means for performing a disc performance by means of a J□ structure (driving the key I7 rigidity 34), a turntable 45, a spindle 46, an idler 47bi, and peripheral small parts related thereto. is configured.

Here, the position of the support member 28? - I will explain how to install it on the Schift.

The positions where the two vibration isolating members are placed from the four support points of the support member 28 relative to the chassis 7 are located at the midpoint between the center of gravity of the carriage 34 and the rotation axis of the turntable 45. They are placed at equal distances on an arc centered on the center. The anti-vibration member 29 is a support member 28 that is installed to protect the playing means from external imaging such as imaging of the vehicle body of a car in which the in-vehicle autoloading disc player is mounted. By arranging the supporting points as described above and providing the vibration isolating member 29 at the supporting points, the vibration damping effect is significantly improved. J3, support member 2
The support point 8 was set as above in consideration of the change in the m center position of the playing means due to the movement of the kill ridge 34. 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 same distance and at equal distances, and two vibration isolators are provided at the support points, a large vibration isolation effect can be obtained. It will be done.

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 FIG. 2, FIG. 3, and FIG. 6, a plate-shaped support member 51 is provided at a position in the L arm of the container 22 that is sandwiched between the movable parts 13 and 14. A total of four wooden bins 51 are provided at both left and right ends of the support member 51.
A is arranged close to the lr right direction. Support member 5
1, each of these bins 51a is slidably engaged with four elongated holes 109 formed in the tray 10 extending in the vertical direction, so that the tray 10 can be moved in a direction perpendicular to the tray movement direction, that is, in the vertical direction. It is supported movably within a predetermined range. The bottle 51a of the support member 51 is also inserted into the elongated hole 10g of the tray 1o, and the movable member 1
3.14 respectively formed cams-IL, 13(l and 1
4g and is slidably engaged and tightened. Cam hole 13g
and 14 (l means that the support member 51 is the turntable 45
It slopes linearly upward in the direction away from the front, that is, from the front to the rear. In other words, the support member 51 moves up and down with respect to the turntable 45 as the moving members 13 and 14 move back and forth.

Note that the cam holes 13+ formed in the moving members 13 and 14
1, 13u, 14d and 1/1 (the cam holes 13d and 14d that engage with the bottle 22a of the container 22 on the back of l are referred to as first cam holes;
The cam holes 13 and 14 (+) that engage with the cam holes 1a are referred to as second cam holes.The total length of the first cam holes 13d and 14d in the disk insertion direction
The total length in the disk insertion force direction of No. 49 is approximately equal.

Support 1. A pressing member 52 is rotatably provided on the first part 51 in cooperation with the turntable 15 to perform a disc clamping action. Note that the position shown in FIG. This is called the clamp position.The clamp position is defined as the position (η) 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 disc placed on the turntable 45. The support member 51 moves between the clamp position and the non-clamp position.Also shown in FIG. 3, the pressing member 52 is formed in an annular shape and has a saw magnet 52a. , a re-disc clamp is formed by the force of the magnet.The pressing member 52 and the supporting member 51 that rotatably supports the pressing member 52 are made of a magnetic material on the steel plate 4, and the supporting member 51 is in the non-clamping position. At some point, the suppressing member 52 is attracted to the supporting member 51 by the tn force of the magnet 52a.Also, as shown in FIG. 52b is attached, and the support member 5
When the pressing member 52 is in the unclamped position, the F surface of the pressing member 52 and the housing 2 are prevented from coming into direct contact with each other due to the vibration of the supporting member. However, this buffer member 52 is not limited to the upper surface of the pressing member 52, but is also provided on the supporting member 5.
The housing 2 may be provided in a part of the housing 2 that faces the pressing member 52 when the housing 1 is in the non-clamped position.

As is particularly clear in FIG. 2, a pair of left and right clamping plates 54 and 55 are arranged on the lower surface of the support part (As2) sandwiching the pressing member 52, and the left and right clamping plates 54 and 55 are arranged to sandwich the pressing member 52, and The supporting member 51 is attached to the movable part f]- in the direction. Each opposing part of the clamping plates 54, 55 has a circumference 1A52 formed on the outer periphery of the suppressing member 52.
arcuate portions 54b and 55b that are fitted into c (third diagram)
is formed, and the circular arc portion has two claws 54G and 55C each that can engage with the bottom surface of the circumference 52C of the pressing part 52.
is installed protrudingly.

A pair of left and right synchronizing plates 57 and 58 are also disposed on the lower surface of the supporting member 51 behind the clamping plates 54 and 55, and are rotatably attached to the supporting member 51 via bins 57a and 58a, respectively. (There are three arm parts 57c, 57d, 57e and 58c, 58 each.
+i and 58e. A long 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. Further, elongated holes 57g and 58q are also formed at the tips of the arm portions 57d and 58d that protrude approximately forward, and the elongated holes are used to connect the bins 54e and 55ei protruding from the clamping plates b4 and 55, respectively. : Involved in the first appearance of each LZ store. However, the synchronizing plates 57 and 58 are constructed to synchronize the operations of the clamping plates 54 and 55.

Note that the holding plate 54 and the synchronizing plate 57 are connected to the first positioning member 61.
and the total λ;j1, and for this the clamping plate 55 and the synchronizing plate 5
8 is collectively referred to as a second positioning member 62. In addition, these pair of positioning members 61 and 62 are movably provided in a plane substantially perpendicular to the rotation axis of the suppressing member 52, and each
(For example, two points (claws 54c, 55c) are engaged with the outer periphery of the pressing member 52 and 1q.

Furthermore, each of the positioning members 61 and 62 is arranged so that the pressing portion (the engaging portion with the outer periphery of the clamping plate 54, 55, which is a part of the two positioning members), that is, the claw 54c and 55C approaches the outer periphery of the pressing member. , is biased by a coil spring 64 serving as biasing means.

As described above, the 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 related small peripheral members constitute a clamping mechanism that clamps the disc 5 conveyed to the performance position, that is, the turntable 45.

The positioning means including the above-described positioning members 61, 62, etc. not only positions the pressing member 52 on the support member 51, but also positions the disk 5 inserted through the slot 3a of the housing 2 at a predetermined position on the container 22. It also acts as a positioning means. As is clear from FIGS. 2 and 6, the positioning members 61 and 62 are arranged on both sides of the disk insertion path, and the nine containers 22 (along with the tray 10 and the moving members 13, 14) are arranged at 1+Iff. It is movable in a plane substantially parallel to the disk supporting surface of the disc.

The clamping plate 54 is a component of each positioning member 61, 62.
．． 55 and each lower surface part u of the synchronizing plates 57 and 58
54f, 55f, 57b and 5811 are provided in a protruding manner, respectively. These bottle portions U54[.

551', 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. t,; di, the coil spring 64 moves the positioning member 61 in the direction in which each of the bin members 54f, 55f, 57b, and 58h approaches the outer periphery of the disk.
．． 62 is energized.

Here, as shown in FIG. 6, each bottle member 54f
, 55r, 57h, and 58h are formed with tapers whose diameters decrease 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, we will explain about the gutter groove that releases the disc clamping state by the above-mentioned positioning means.As shown in FIGS. A small bracket 71 is fixedly attached to J3, and a bottle member 72 is protruded from the small bracket. This bottle member 72 extends in the vertical direction and
5, and the tray 10 is moved to a predetermined position on the turn table 45, that is, the container 2 is moved to a predetermined position on the turn table 45;
When the rotation center of the disk 5 supported by the turntable 2 reaches a position where it substantially coincides with the rotation axis of the turntable 45, the above 1.
6 The same 1 which is a component of the deciding means! I] It is arranged so as to engage with the front end of a claw 73 screwed to the tip of the arm portion 58e of the temporary 58.

That is, as the moving member 14 moves after the tray 10 reaches the predetermined position, the positioning members 61 and 62 are operated, and the bin members 54f, 55r, and 57t+ are provided on 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
A taper is formed that decreases in diameter in the direction approaching 5, that is, downward. The positioning means (consisting of positioning members 61 and 62) for positioning the disk 5 at a predetermined position on the container 22 rotates while contacting the bin member 72, and rotates together with the container 22 in the direction of tray movement. However, since the taper is formed on the bin member 72 as described above, the contact between the bin member and the positioning means is a point contact. Therefore, the resistance caused by mutual contact becomes extremely small, and disc loading and ejecting operations become smooth. Further, the positioning means receives a push due to a component force generated by the action of the taper of the bottle member 72.

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

As shown in Fig. 1.3, a flexible outer material such as rubber is placed inside the disk insertion slot 3a formed in the front panel 3 that constitutes the front surface of the housing.
A pair of metal plates are formed such that the one end in the transverse direction faces each other and close the slot 3a on the main surface.
Contoured longitudinal members 7G and 77 are provided. Each legible longitudinal member 76, 77 has a pair of fixing parts 78, 78 and 77 at the other end in the transverse direction, that is, at the non-opposing end.
79 is attached to the front panel 1 to the panel 3.

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

Each of the opposing ends of the flexible longitudinal members 7.6 and 77 is chamfered in an arcuate manner to ensure smooth sliding contact between the flexible longitudinal members and the disk 5. Furthermore, flexible portions 76a and 77a, which are formed thinly and are easily bent when exposed to °C, are provided at the opposite ends of each of the flexible longitudinal members 76, 77, respectively.

Incidentally, the flexible longitudinal members 76 and 77 are electrically conductive and are connected to C ground via, for example, fixed portions U78 and 79, respectively. By doing this, static electricity can be removed from the disc 5 inserted from the slot 3a, and dust that has adhered to the surface of the disc 5 due to static electricity is prevented from entering into the housing 2. be.

Note that when the material of the readable longitudinal members 76, 77 is rubber, for example, an effective method for imparting conductivity to the material is to avoid mixing carbon particles or the like 41.

As shown in FIG. 2, FIG. 5, and FIG.
A lever 85 is arranged on the right side of the bracket 12 fixed to the left end of the shifter and extends approximately in the front-rear direction, and is rotatably attached to the bracket 12 at approximately the center in the hand direction by a pin 85a. There is. 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 protruded, and the bin is movably engaged with a long hole 55bi formed in the front yxj portion of the lever 85. These lever 85 and prevention member 86 constitute a disk double insertion prevention means for preventing double insertion of disks from the slot 3a. That is,
As the prevention member 86 moves up and down in conjunction with the rotation of the lever 85, the 1-hiat 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 for driving the disk double insertion prevention means, a special drive R4M 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, and 14 (C), the disk 5 inserted through the slot 3a is inserted into the container 2 at the deep part of the housing 2 and on the disk insertion path.
A guide member 91, which acts as a guide means for guiding the tray 10 to a predetermined position on the tray 10, is arranged so as to face the disk carrying surface of the convenience door 22, and is fixed to the lower surface of the tray 10, for example. The guide member 91 is formed by bending a steel plate, for example, and has a tapered portion 91a that is inclined toward the disk insertion direction 1 toward the Y disk supporting surface of the container 22 at its front end. There is.

As shown in FIGS. 2, 6, and 11 (al), the disk 5 inserted through the slot 3a and positioned at the predetermined position on the container 22 is placed at the rear end of the tray 10. A switch 93 for the play start switch 93 is provided so as to engage the outer periphery of the disc when pressed slightly in the input direction.However, this play start switch 93 is An intermediate member 94 (fourteenth
(also shown in Figure +b+) engages the outer circumference 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 1○a of the tray 10. An arm 97 formed in a substantially dogleg shape is rotatably attached to the support shaft 96 at a substantially central portion d'5. On the lower surface of both ends of the arm 97 are bins 97a,
97b are provided protrudingly, and the left end side bottle 97a is
It is engageable with the outer periphery of the disk 5 positioned on the container 22. The support shaft 96 also includes a detection switch 98.
A switch holding member 99 that holds the switch so as to be engageable with the left end portion of the arm 97 is swingably attached. This switch holding member 99 is biased clockwise in FIG. 2 by a coil spring (not shown). The arm 97 engaged with the switch holding member 99 via the detection switch 98 is also given a repulsive force in the same direction as the switch holding member 99 by this coil spring (not shown).

, L marked support@96, arm 97, detection switch 98
The disk 5 is positioned on the container 22 by the switch holding member 99 and the peripheral small members related thereto. There is a tivi-like detection method that detects this! has been achieved. Furthermore, when the ray 10 moves backward by a predetermined amount from the position shown in FIG. It is designed to come into contact with a cut-and-raised portion 7'' provided in the.

As shown in Fig. 6 and Fig. 11, main 1/ridge 3
A detection switch 101 is provided on the right side of 4 for detecting that the carriage has returned to its home position, that is, the rest position before the performance starts. This detection switch 101 is a support part 28 that supports the kit/ridge 34''3.
A projection 310 protruding from the slider 31, which is a component of the kill ridge 34, generates a detection signal by engaging with the actuator 101a of the detection switch.

As shown in FIG. 4, on the right end of the chassis 7 is a detection switch 10 that detects when the tray 10 has reached the limit position of sexual force movement by engaging with a part of the tray 10.
3 is fixed.

Further, as shown in FIG. 6, the moving member 1/
A detection switch 10/l is fixedly installed, which detects that the eight moving member has reached the backward movement limit position by engaging a part of the disc 1, and therefore that disc loading and clamping have been completed. . However, this detection switch 104 is attached to the chassis 7 via a bracket 105.

In addition, the operation button group 6, play start switch 93, detection switches 98, 101, 103 and 10 described in 11a
Each signal emitted from the housing 2 is transmitted to an AD control section (not shown) disposed at a predetermined position within the housing 2. The motors 20 and 38 and the spindle motor 46 operate at timings to be described later by operation signals sent from the control section in response to these signals.

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

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

First, insert the disk 5 into the slot 3 as shown in FIG.
Insert it 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.
[ and σ55'', and moves forward while pushing both the positioning members 61 and 62 left and right. When the rotation center of the disk 5 crosses the line connecting the axial centers of the left and right bin members 54r and 55f, both the bin members Since 54f and 55f are biased toward the outer periphery of the disk f, the disk 5 is pulled into the housing 2 even if the hand is released.Furthermore, at this point, the guide member 91 effectively guides the disk 5. The disk 5 is positioned at a predetermined position on the container 22.The disk 5 is positioned on the four bin side 54'', 55r, 5.
Since the disc is positioned while being held between the discs 7h and 5811, once the disc is positioned, it will not shift due to external vibrations such as vibrations of the vehicle body.

As shown in FIG. 15(a), 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 of the arm 97: the bin 97a, and the disk 5 is positioned on the container 22. For example, the arm is rotated counterclockwise in FIG. 15 (J). Therefore, the left finger of the arm 97 engages with the detection switch 98 to operate the detection switch (FIG. 15 tb). state r, ε4). Then, the motor 20 starts rotating and the moving member 14 is driven backward via the power transmission 1M bracket 19. However, as is clear from FIGS. 4 and 6, the bin 26 protruding from the swinging end of the lever 25 is swingably mounted on the tray 10.
By being engaged with the cam groove 14e formed in the movable member 14, the movable member 14 cannot move relative to the tray 10, and therefore the container 22 is locked relative to the tray 10. Therefore, the rotation of the motor 20 only causes the moving member 14.13, the tray 10, and the container 22 to move rearward. 4I-Oh, above 1 bottle 2
6 rotates around the right end of the chassis 7 while being engaged with the cam groove 140.

Almost at the same time when the tray 10 and the container 22 move backward by a predetermined amount and the disk 5 is accommodated in the housing 2, the arm 97 is moved as shown in FIG. 15(C).
A bottle 97b protruding from the right end of the chassis 7 comes into contact with the cut-and-raised portion 7[ of the chassis 7. As the bin 97b comes into contact with the cut-and-raised portion 7f in this manner, 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. Accordingly, the arm 97 is rotated in the counterclockwise direction J5 by the cut-and-raised portion 7 [FIG. 15 fc], and the engagement state of the arm 97 with the disk 5 is released. In this state, the center of rotation of the disk 5 substantially coincides with the rotation axis of the turntable 45, which is -C.

At the same time that the engagement between the arm 97 and the disk 5 is released, the bin 26 is released from the cam W as shown in FIG.
+'+ 14 e and enters into the recess 7C formed in the shifter. This locks the tray 10 against the chassis 7 and therefore the housing 2, and at the same time locks the movable member 14 against the tray 10. The state, and thus 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 bottle 22a protruding from the container 22 slides along the cam holes 13d and 14d provided in the moving member 13.14, respectively, and the first
As shown in FIG. 8, the container 22 moves downward while carrying the disk 5. Therefore, the disc 5 is placed on the turntable 45. At this time, the disk supporting surface of the antenna 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 hoe structure is moved.
Moving 1ε along cam holes 13g and 14g formed in the moving members 13 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 vertical direction of the support member 51 is 1. :, The movement stroke for L12 is approximately 8.5
mm, and the vertical movement distance of the container 22 is approximately 6°5IIIll. Although the movement stroke of the container 22 is smaller than the movement stroke of the support member 51,
This is a result of the fact that the cam holes 13d and 14d, with which the bin 22a protruding from the container 22 is actively engaged, have a horizontal portion in the middle of the cam holes.

When the movable member 14 reaches the rear limit position at the same time as the disk 5 is clamped, a portion of the movable member engages with the detection switch 104 to operate the detection switch, as shown in FIG. The motor 20 is stopped. Performance is possible in this state. In addition, moving member 1
The lever 85 is rotated in conjunction with the backward movement of 3.
Therefore, 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 kill ridge 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. Follow C
, the tray 10, the movable members 13, 14, the container 22, and the pressing member 52 are returned to the rest position before playing by following a process that is completely opposite to the operation at the time of disc loading described above. Further, the carriage 34 is also returned to its home position.

In this way, the disk 5 is recovered.

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

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

Also, as is clear from FIGS. 9 to 11, in this auto [1-ding disc play 17] a pair of guide shafts 3Qa, 3Q11 are provided to guide the carriage 34. -h30b is closely fitted to the main 11 ridge 34 on the screw 1/foot 37 side, and the other guide shaft 30a abuts against the carriage 34 to support the carriage. 1st
As shown in FIG. 1, a pin 111 as an engaging member that engages with the moving direction end irn of the carriage 34 when the carriage 34 reaches its movement limit position is provided, for example, in the vicinity of the guide shaft 3Qa. There is. This bottle 111 is integrally provided to protrude from the support member 28 shown in FIG.

Effects As detailed above, in the autoloading disc player according to the present invention, the slot-in type makes it easy to load the disc HIi, and since the player is compact overall, it is suitable for use outside the seat.

Furthermore, the autoloading disc player according to the present invention further includes a carriage (34) that carries an optical pickup means and is movable, a pair of guide shafts <30a, 30b) for guiding the optical pickup means, and a carriage (34) for guiding the optical pickup means. The drive for driving the key II ridge (a) includes a screw shaft (37) extending laterally in the moving direction of the carriage, a drive source for rotationally driving the screw shaft, and a drive source for rotating the screw shaft. / A leaf spring (41) fixed to the azalea, and a half nut (42) fixed to a predetermined position of the leaf spring and screwed to the screw shaft, one of the pair of guide shafts is connected to the carriage. The screw shaft is closely fitted on the screw shaft side, and the other screw shaft is in contact with the carriage to support the carriage, and is fixed to the housing so that when the carriage reaches the movement limit position, the one screw shaft and an engaging member (bin 11
1) is provided.

Even after the carriage reaches its movement limit position and its movement is restricted, the screw shaft continues to rotate by a predetermined amount, but at this time, the leaf spring supporting the half nut is bent and the half nut is A motion of escaping from the screw shaft to the inner shoulder occurs as the screw shaft rotates. The plate spring and half nut hold the L carriage rim onto the guide shaft (
As mentioned above, if the half nut escapes from the screw shaft, the kit/ridge becomes unstable. Strictly speaking, the guide shaft that fits tightly into the carriage also has a gap between it and the fitting hole of the carriage, so if the disc player is to be mounted on a vehicle, for example, vehicle body vibration etc. This caused Killeridge to sway slightly.

However, the autoloading disc player is provided with the engaging member (bin 111), which engages with the carriage to prevent abnormal rocking of the main 1/ridge. In other words, the vibration resistance against high VF performance means is excellent.

[Brief explanation of the drawing]

FIG. 1 is a schematic perspective view showing the entirety of an in-vehicle delta loading disc player according to the present invention, and FIGS. Figure 6 shows the plan view, front view, left side view, and right side view of the internal structure of the scraper. Perspective views of main parts of 7'S 'r's, Figures 7 to 14 <■. Mountain 1. (C1 is a partially detailed view of the interior (Fig. 15)
ω. +t++, +c+ to Fig. 18 are diagrams for explaining the operation of the O1 hero loading disc player. Explanation of symbols of main parts 2...Housing 2a, 10d...・Opening 2b...i body 3...front panel 3a...slot 5...disk 6...operation button group 6a... ...Play start switch 7...
・Sillage 7a...Body 7b...
...Subsissi 7C...Four parts 7"...Cut and raised portion 8...Vibration isolating member 10...Tray 10 a...Main body 10 b...
...Side wall members 10c, 10e, 17c, 17d, 22a
. 26.51a, 54a, 54e, 55a. 55e, 57a, 58a, 58f, 85a. 86a, 97a, 97b-- Bins 10f, 10 (J, 13a, 13b, 1zla. 14b, 14f', 31b, 57f, 57g. 58 (J, 85b... Long hole 12.105... ...Bracket 13.1/I...Moving member 13d, 13Q, 14d, 14Q...Cam hole i
<c... Rack part 14e... Full cam 15... Guide bar 17... Interlocking shafts 17a, 17b... One arm. ...Power transmission d tree top 19a...First stage gear 19b...Final stage gear 20...℃-evening 20a...
Warm 22... Container 23...
... Protective film 25.85 ... Lever 28.51 ... Support member 29 ... Vibration isolating member 30i1, 30b ... Guide shaft V-shift 31.・
...Slider 31a, 31c...Screw 31e...Protrusion 33...Case 33 a...Objective lens 33 b...
... Notch 34 ... Carriage 35
...... Width part screw 35a ... Threaded part
35b...Circular head 37...Screws V71-38...Motor 39
... Pulley 41 ... Leaf spring 42 ... Half nut 45 ... Turntable 46 ... Spindle motor 46a ... Output 'I' lll 46'
b... Bearing part 47a... 1 yen maintenance structure
47b... Idler 52... Pressing member 52a... Magnet 52b... Sewing part 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 positioning member 64... Coil spring 71. ...Small brackets 1 to 76.77...Flexible longitudinal members 76a, 77a
...Flexible portion 78,79...Fixing member 86...Preventing member 86b...Preventing portion 91...Guiding member 91a... ...Tapered portion 93...Play start switch O11...
...Intermediate member 96...Support shaft 9 7
... ... Frame 98, 101, 103, 104 ... Detection switch 99 ... Switch holding member 101a ... Actuator applicant Pioneer Corporation agent Patent attorney M4 - Motohiko Hiroshi 72 drawings (a) Book 732 14 drawings 1 (c) ←---------□・・□- (b) Spontaneous writing of procedural amendments) November 1980 21st

Claims (1)

[Claims] a housing having a slot into which a disc to be played is inserted; a playing means provided within the housing; and a disc transport mechanism that transports the disc to a playing position, including a disc carrying part that supports the disc at a predetermined position. The playing means includes a carriage carrying an optical pickup means, a guide means for guiding the carriage, and a drive mechanism for driving the carriage, and the guide means is arranged on both sides with respect to the moving direction of the carriage. The driving mechanism includes a pair of guide shafts arranged parallel to each other so as to sandwich the carriage, and the drive mechanism includes a screw shaft extending in the moving direction of the carriage, a drive source for rotationally driving the screw shaft, and a drive mechanism fixed to the carriage. and a half nut fixed to a predetermined position of the leaf spring and screwed onto the screw shaft, one of the pair of guide shafts being tightly fitted into the carriage on the screw shaft side. and the other is in contact with the carriage to support the carriage, and is fixed to the housing so that when the carriage reaches a movement limit position, the guide shaft is in the vicinity of at least one of the one and the other guide shafts. An autoloading disc player characterized in that an engaging member is provided that engages with an end surface of a carriage in a moving direction.