JPS60214460A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To improve the vibration proof performance in excellent way by fitting a playing means including a turntable and an optical pickup means to a disc carrying mechanism via a vibration proof member. CONSTITUTION:A disc carrying mechanism carrying a disc loaded from a slot of a housing to the playing position, that is, onto the turntable 45 is constituted of a lock/release means, a chassis 7, a tray 10, a container 22, mobile members 13, 14, and the said driving torque providing means comprising a power transmission mechanism 19 and a motor 20 or the like, a support member 28 formed nearly into a channel shape as a whole is arranged to the lower face of the chassis 7 being a part of the said disc carrying mechanism and fitted to the chassis 7 via four vibration proof members 29 made of soft and flexible rubber. Then the playing means is not susceptible to the effect of external vibration such as vibration of a car body, smooth playing is attained and also a fault of the disc playing means due to the vibration is prevented.

Description

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

111 Disc players for playing information recording discs such as digital audio discs have already been developed and have recently become widespread in general 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.

&1 Tragedy 11 The object of the present invention is suitable for outdoor use,
It is an object of the present invention to provide a disc player having particularly good vibration resistance.

The autoloading disc player according to the present invention comprises:
a housing having a slot into which a disc to be played is inserted; a playing means provided within the housing; and a disc transport mechanism that transports the disc to a playing position, including a disc carrying part that supports the disc at a predetermined position. The performance means includes a carriage carrying an optical pickup means, a guide means for guiding the carriage, a drive mechanism for driving the carriage, a turntable, and a drive source for rotationally driving the turntable. The present invention is characterized in that it has a support member that supports the carriage, the guide means, the drive mechanism, the turntable, and the drive source, and the support member is attached to the disk transport mechanism via a vibration isolating member.

Embodiments 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 12c+i. 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 supporting member is electrically installed within the housing 2. As shown in FIGS. The chassis 7 includes a main body 7a and a sub-chassis 7b fixed to the front end of the main body. As shown in FIGS. 1 and 12, the shaft 11 is supported by the housing 2 via four vibration isolating members 8 made of rubber or the like.

However, only the two vibration isolating members 8 on the left side are shown in FIG. A tray 10 is provided on the chassis 7 so as to be movable in a direction parallel to a rotating surface of a turntable, which will be described later, in this case, in a front-back direction (direction of arrow Y and the opposite direction thereof). As is particularly clear in FIG.
0 is composed of an L-shaped main body 10a and a side wall member 10b screwed to the right end of the main body. A bracket 12 is fixed to the left end of the chassis 7, and a bin 10C protruding from the left end of the tray 10 slides into a long hole 12a formed in the bracket 12 by extending in the front-rear direction. It is supported by freely engaging.

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

Specifically, the movable member 14 is supported by a long hole 14a formed in the movable member extending in the front-rear direction and slidably engaged with a bin 10e protruding from the right end of the tray 10. There is. Further, the left moving member 13 is located between the tray 10 and the bracket 12, and a long hole 13a extending in the front-rear direction is formed in the moving member, and a bin is provided at the left end of the tray 10. 100). Note that the right end of the tray 10 is connected to the guide bar 1-5 in the tray movement direction.
That is, they are slidably engaged and supported at two support points spaced apart in the front-rear direction. At the rear end of the tray 10 is an interlocking shaft 1 having arms 17a and 17b fixed to both ends.
7 is provided extending in the left-right direction, and the tray 1
It is rotatably supported at 0. Arms 17a, 17b
Bottles 17c and 17d are largely protruded from the inner surface of the distal end of the movable member 13.14, and the bins are respectively inserted into elongated holes 13b and 14b formed in the rear end of the movable member 13.14 and extending in the vertical direction. Actively engaged. A power transmission mechanism 19 consisting of a plurality of gears is rotatably supported at the right end of the chassis 7.
is provided. A motor 20 is fixedly installed in front of the power transmission mechanism 19, and as is particularly clear in FIG. are doing.

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

The container 22, the tray 10, and the moving members 13 and 14 constitute a disk holding section. It should be noted that a protective film 23 made of felt or the like is attached to the disk supporting surface of the container 22 in order to avoid direct contact between the disk supporting surface and the disk 5. A total of four bins 22a, one pair each at both left and right ends of the container 22, are provided extending in the left and right direction. Each of the bins 22a of the container 22 is slidably engaged with four elongated holes 10f formed in the tray 10 to extend in the vertical direction, so that the container 22 can be moved to the tray 1o in a direction perpendicular to the tray movement direction, that is, in the vertical direction. It is supported so as to be movable within a predetermined range.

After passing through the elongated hole 10f, the bin 22a of the container 22 is also slidably engaged with cam holes 13d and 14d formed in the moving member 13.14, respectively.

The cam holes 13d and 14d have tapered portions that are inclined upward in the disk insertion direction, that is, from the front to the rear, that is, in the direction in which the container 22 moves away from the turntable, which will be described later.
It is comprised of a horizontal part that extends rearward and continuous with the end of the tapered part in the disk insertion direction, that is, the rear end, and a tapered part that extends parallel to the tapered part and continues with the rear end of the horizontal part. That is, the container 22 is configured to move up and down as the moving members 13 and 14 move back and forth.

Next, the 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 container 22 is locked with the tray 10. A lock for releasing the tray 10 and locking the tray 10 against the housing 2.
The release means will be explained.

As shown in FIGS. 4 and 6, a recess 7c is formed at the right end of the main body 7a of the chassis 7. 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 recess 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 pin 26 selectively engages with the recess 7c and the cam groove 14e. In addition, the moving member 14
is formed so as to extend forward continuously from the cam groove 14e, and is slidably engaged with the bin 26, allowing movement of the movable member 14 after the tray 10 reaches the predetermined position on the turntable. A long hole 14f is formed.

These recesses 7c, cam grooves 14e, 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. A locking/unlocking means for locking the tray 10 to the housing 2 is also provided.

Further, the lock/release means, the chassis 7, and the tray 1
0, the container 22, the movable members 13, 14, etc., the driving force applying means consisting of the power transmission mechanism 19, the motor 20, etc., move the disc 5 inserted through the slot 3a of the housing 2 to the playing position, that is, the above-mentioned 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. On the guide shafts 30a and 30b, a slider 31 formed in a substantially square shape is movably supported at both sides rounded 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 moving direction of the slider, that is, in the front-back 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 33au is not shown) for reading information from the disk is carried. Further, the slider 31 and the case 33 are collectively referred to as a carriage 34.

Here, as shown in FIG. 2, for example, in the tray 10 without a part of the disk transport mechanism, the disk transport am is in the pre-disk transport position (the state shown in FIG. 2) and the key is in the tray 10. A circular opening 10d is formed which faces the objective lens 33a when the 17-stage lens 34 is at its home position, that is, at a rest position before playing. This opening 10d is provided to wipe off dust and the like adhering to the surface of the objective lens 33a without removing the disk transport mechanism. 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. Similar to the above-mentioned opening 10d, this frontage part 2a also has an objective lens 33a when the disc transport A11l and the carriage 34 are in the above-mentioned stationary position before playing.
It is positioned so as to face the housing 2
Also, a lid body 2b that closes 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, 28, etc.

However, as shown in FIGS. 9 and 10, the end of the slider 31 in the moving direction has a long hole 31 extending in the left-right direction in a plane perpendicular to the slider moving direction.
b is formed. The elongated hole 31b is provided corresponding to one end of rotation of the case 33, and the elongated hole has a threaded portion 35.
a is a biased screw 350 that is screwed into the case 33; a circular head 35;
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.
Adjustment means for adjusting the rotational angular position of the case 33, that is, adjusting the so-called tangential direction of the optical pickup means (not shown) provided in the case, by the fitted elongated hole 31b. is configured. In addition, after this adjustment is completed, it is fixed with the screw 31c.

As shown in FIGS. 6 and 11, a screw shaft 37 is rotatably attached to both ends of the support member 28 and is arranged parallel to the guide shafts 30a and 30b. A motor 38 is disposed in front of the screw shaft 37, and the screw shaft 37 is rotationally driven by the motor via a power transmission means including a pulley 39 and the like. As is particularly clear in FIG. 11, the slider 31 has a leaf spring 41
is fixed in the form of a cantilever beam, and a half nut 42 screwed onto the screw shaft 37 is fixed at the free end of the leaf spring.

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

A turn daple 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 close contact means for bringing the output shaft 46a and the bearing portion 46b that supports it into close contact. Output shaft 46a and bearing section 4
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, 30
b, the carriage 34, and the drive m including the motor 38.
The above-mentioned close contact means consisting of a mechanism (driving the carriage 34), a turntable 45, a spindle motor 46, an idler 47b, etc., and peripheral small members related to 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 7, that is, the positions where the vibration isolating member 29 is arranged are centered on the midpoint between the movement trajectory of the center of gravity of the carriage 34 and the rotation axis of the turntable 45. They are placed at equal distances on the arc.

The vibration isolating member 29 is installed to protect the playing means from external vibrations such as body vibrations of the car on which the in-vehicle autoloading disc player is mounted. By arranging as described above and providing the vibration isolating member 29 at the support point, the vibration isolating effect is significantly improved. The reason why the support point of the support member 28 is set as described above is to take into consideration the change in the center of gravity of the playing means due to the movement of the carriage 34.
For simplicity, for example, a support point of the support member 28 is provided on a circular arc centered on the center of gravity of the playing means when the carriage 34 is at the midpoint of the movement trajectory, and at equal distances from each other, and a vibration isolating member 29 is provided at the support point. A great vibration-proofing effect can be obtained even if it is provided.

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

As shown in FIGS. 2, 3, and 6, a plate-shaped support member 51 is provided above the container 22 at a position sandwiched between the moving members 13 and 14. There are a total of four bottles 51a, one pair each at both left and right ends of the support member 51.
are provided extending in the left and right direction. The support member 51 allows each of the bins 51a to slideably engage four elongated holes 10g formed in the tray 10 to extend in the vertical direction, thereby allowing the support member 51 to move the tray 10 in a direction perpendicular to the tray movement direction, i.e. It is supported so as to be movable within a predetermined range in the vertical direction. The bin 51a of the support member 51 is also attached to the tray 1.
0 is inserted into the elongated hole 10 (l), and the movable member 1
They are slidably engaged with cam holes 13g and 1417 formed at 3.14, respectively. The cam holes 13 (I and 14CI) are linearly inclined upward in the direction in which the support member 51 leaves the turntable 45, that is, from the front to the rear. The support member 51 is configured to move up and down relative to the turntable 45.

Note that the cam holes 13d formed in the moving members 13 and 14
, 13g and 146 and 14 (), container 2
The cam holes 13d and 14d that engage with the second bottle 22a are
This is called a cam hole, and the pin 51a of the support member 51 is called a cam hole.
The cam holes 130 and 14g that engage with the second cam hole are referred to as second cam holes. Note that the total length of the first cam holes 13d and 14d in the disk insertion direction is approximately equal to the total length of the second cam holes 13g and 14g in the disk insertion direction.

The support member 51 is rotatably provided with a pressing member 52 that cooperates with the turntable 45 to perform a disc clamping action.
Being beaten. Note that the position shown in FIG. 3 is referred to as the unclamped position of the support member 51. 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. The support member 51 moves between the clamp position and the non-clamp position. Also shown in FIG. 3, the pressing member 52 is a magnet l-528 formed in an annular shape.
The disk is clamped by the magnetic force of the magnet. Further, the suppressing member 52 and the supporting member 51 that rotatably supports the suppressing member 52 are made of a magnetic material such as a steel plate.
1 is in the non-clamped position, the pressing member 52 is attracted to the supporting member 51 by the magnetic force of the magnet 52a. Further, as shown in FIG. 6, a buffer member 52b made of felt or the like is attached to the upper surface of the pressing member 52, and vibrations of the supporting member 51 when the supporting member 51 is in the non-clamped position are suppressed. This prevents the upper surface of the suppressing member 52 and the housing 2 from coming into direct contact. However, this loose! ! The i 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 pressing member 52 when the supporting member 51 is in the non-clamped 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. Arc parts 54b and 55b, which are fitted into circumferential grooves 520 (shown in the third figure) formed on the outer periphery of the pressing member 52, are formed on each opposing part of the clamping plates 54 and 55. Circumferential groove 520 of pressing member 52
Two protruding claws 54c and 55C that can be engaged with the bottom surface of the holder are provided.

A pair of left and right synchronizing plates 57 and 58 are also provided on the lower surface of the support member 51 behind the holding plates 54 and 55, and pins 57a and 58. A is rotatably attached to the support member 51 by one inch, respectively. Each synchronization plate 57.58 has 3 each
Book arm parts 570.57d, 57e and 58c,
58d and 58e. A long hole 57f is formed at the tip of the arm portion 57c, and a pin 58f protruding from the tip of the arm portion 580 is slidably engaged therein. Further, elongated holes 57a and 58o are also formed at the tip ends of the arm portions 57d and 58d that protrude approximately forward, and both elongated holes are connected to pins 54e that are protruded from the clamping plates 54 and 55, respectively.
and 55e, respectively, in a slidable manner. That is,
The synchronizing plates 57 and 58 are configured to synchronize the operation of the clamping plates 54,55. Note that the clamping plate 54 and the synchronizing plate 57 are collectively referred to as a first positioning member 61, whereas the clamping plate 55 and the synchronizing plate 58 are collectively referred to as a second positioning member 62. That is, these pair of positioning members 61 and 62 are provided movably in a plane substantially perpendicular to the rotation axis of the pressing member 52, and each of them is provided at two points (for example,
The claws 54c and 55(i) can engage with the outer periphery of the pressing member 52.

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

The above-described positioning members 61 and 62 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 for positioning.As is clear in FIGS. 2 and 6, the positioning members 61 and 62 are arranged on both sides of the disk insertion slot, It is movable in a plane substantially parallel to the disk holding surface of the disk holding section (which together with .14 constitutes the disk holding section).

The clamping plate 54 is a component of each positioning member 61, 62.
．． Pin members 54f, 55f, 57h and 58h are provided protruding from the lower surfaces of 55 and synchronizing plates 57 and 58, respectively. These pin members 54f.

55'', 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. Note that the coil spring 6
4 urges positioning members 61 and 62 in a direction in which each of the bin members 54f, 55f, 57h, and 58h approaches the outer periphery of the disk.

Here, as shown in FIG. 6, each pin member 5tr
, 55r, 57h, and 58h are formed with tapers that reduce in diameter toward the disk holding portion of the container 22. However, the pin member 57h is not shown.

When loading or ejecting the disc, the disc 5 is held between the pin members mentioned above.
At the same time as the disk 5 is being held, the disk 5 is pressed toward the disk supporting surface of the container 22 by the component force generated by the action of the taper of each bin member.

Next, mfI for releasing the disc clamping state by the above-mentioned positioning means will be explained.

As shown in FIGS. 2 and 6, an L-shaped small bracket 71 is fixed to the upper end of the right moving member 14, and a bin member 71 is fixed to the small bracket.
2 is provided protrudingly. This bin member 72 extends in the vertical direction, and the tray 10 is at a predetermined position on the turntable 45, that is, the rotation center of the disk 5 supported by the container 22 that moves together with the tray is the rotational center of the turntable 45. It is arranged so as to engage with the front end of a pawl 73 screwed to the tip of the arm portion 58e of the synchronizing plate 58, which is a component of the positioning means, when it reaches a position that substantially coincides with the axis.

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

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

As is clear from FIG. 6, the container 22 is attached to the turntable 4 on the bin member 72 provided on the moving member 14
A taper is formed in which the diameter decreases in a direction approaching 5, that is, downward. The positioning means (positioning member 6
1.62, etc.) slides in contact with the bin member 72 and reciprocates together with the container 22 in a direction substantially perpendicular to the direction of tray movement, but as described above, the bin member 72 has a taper. Due to this formation, the contact between the bottle member and the positioning means is a point contact. Therefore, the resistance caused by mutual contact becomes extremely small, and disc loading and ejecting operations become smooth. Further, the positioning means is pushed by a component force generated by the taper action of the bottle member 72.

Next, each mechanism that operates when the disk 5 is inserted into 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 one end in the hand direction faces each other and closes the slot 3a at the τ main surface. Each of the flexible longitudinal members 76 and 77 is attached to the front panel 3 at the other end in the lateral direction, that is, at the non-opposing end thereof, by a pair of fixing members 78 and 79 having an angular cross-section.

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

Each of the opposing ends of the flexible longitudinal members 76 and 77 is chamfered in an arc shape, so that the sliding contact between the respective flexible longitudinal parts and the disk 5 is smooth. In addition, thin flexible parts 76a and 77a, which are particularly easy to bend, are provided in the vicinity of each opposing end of the flexible longitudinal members 76 and 77, respectively.

Incidentally, the flexible longitudinal members 76 and 77 are electrically conductive and are grounded, for example, via fixing members 78 and 79, respectively. By doing so, 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 and 77 is, for example, rubber, an effective method for imparting S-electricity to the material is to mix carbon particles or the like.

As shown in FIGS. 2, 5, and 6, a lever 85 extending approximately in the front-rear direction is disposed on the right side of the bracket 12 fixed to the left end of the chassis 7, and a lever 85 is arranged on the right side of the bracket 12 fixed to the left end of the chassis 7.
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 8G is provided in front of the lever 85 so as to be movable in the vertical direction (the direction of the arrow 2 and the opposite direction). A bottle 86 is attached to the left end of the prevention member 86.
A is provided in a protruding manner, and the bottle is slidably engaged with an elongated hole 85b formed at the front end of the lever 85. These lever 85 and prevention member 86 constitute a disk double insertion prevention means for preventing double insertion of disks from the slot 3a. That is, lever 8
As the prevention member 86 moves up and down with the rotation of the slot 3, the prevention part 86b provided on the prevention member
3a to prevent the insertion of a disk from the slot 3a.

By the way, the lever 85 is designed to be linked to the movement of the moving member 13, which is a component of the disk transport mechanism described above, and in this way, a part of the power for transporting the disk is transferred to the disk double insertion prevention means. By using this as the power for driving the disk double insertion prevention means, a special drive mta for driving the disk double insertion prevention means is no longer necessary. Therefore, it is easier to downsize and reduce the cost of the entire player.

As shown in FIGS. 2, 6, and 14 (ω, (C), the disk 5 inserted from the throwers 1 to 3a is placed on the container 22 in 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 discs to a predetermined position, is disposed to face the disk supporting surface of the container 22, and is fixed, for example, to the lower surface of the tray 10.The guide member 91 is made by bending a steel plate, for example. A tapered portion 91a is formed at the front end thereof and is inclined toward 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 on 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 has an intermediate member 94 (also shown in FIG. 14) which is provided in front of the play start switch so as to be movable in the front-back direction and is provided with a forward piston. It engages with the outer periphery of the disk through.

As shown in FIG. 2, a support shaft 96 extending in the vertical direction is fixed to the lower surface of the right end of the main body 1Qa of the tray 10. As shown in FIG. 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. A switch holding member 99 that holds the detection switch 98 so as to be able to engage with the left end portion of the arm 97 is also swingably attached to the support shaft 96 . This switch holding member 99 is held in place by a coil spring (not shown).
A pie spacing is applied in the clockwise direction in the figure. The arm 97 engaged with the switch holding member 99 via the detection switch 98 is also given a repulsive force in the same direction as the switch holding member 99 by this coil spring (not shown).

The above-mentioned support shaft 96, arm 97, detection switch 98,
The switch holding member 99 and the peripheral small members associated therewith constitute a mechanical detection means for detecting that the disk 5 is positioned on the container 22.

Furthermore, when the flywheel 10 moves a predetermined distance rearward from the position shown in FIG. It is made to abut on the cut and raised portion 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.
When a protrusion 31e protruding from the detection switch 1 engages with an actuator 101a of the detection switch, a detection signal is emitted.

As shown in FIG. 4, a detection switch 1 is provided at the right end of the seat 17-7 for detecting that the tray 10 has reached the forward movement limit position by engaging with a part of the tray 10.
03 is fixedly installed.

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 and is numbered.

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

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

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

First, as shown in FIG.
3a into the housing 2. At the same time as the disk 5 is inserted through the slot 3a, it engages with the bin members 54f and 55f provided on the positioning members 61.62 shown in FIG.
Proceed while pushing 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 54 and 55f, both bin members 54f and 55f are biased toward the outer periphery of the disc, so even if you release your hands, they will not move. The disc 5 is drawn into the housing 2. Moreover, at this time, the guide member 91 effectively guides the disk 5,
The disk 5 is positioned at a predetermined position on the container 22. Note that the disc 5 has four nohin members 54f and 55.
Since the disks are positioned while being held by f, 57h, and 1F58h, once positioned, the disks will not shift due to external vibrations such as vehicle body vibrations.

As shown in FIG. 15(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 counterclockwise at ω. Therefore, the left end of the arm 97 engages with the detection switch 98 and operates the detection switch (No. 15). Then, The motor 20 starts rotating from t7i1 to the moving member 14 via the power transmission mechanism 19.
is driven backwards. However, as is clear from FIGS. 4 and 6, the bin 26 protruding from the swinging end of the lever 25 swingably provided on the tray 10 is attached to the movable member 14.
Since the moving member 14 is engaged with the cam groove 14e formed in the tray 10, the moving member 14 does not move relative to the tray 10.
Container 22 is therefore locked relative to tray 10. Therefore, the rotation of the motor 20 only causes the moving member 14.13, the tray 10, and the container 22 to move rearward. Note that the bottle 26 has a cam groove 14e.
slide over the right end of the chassis 7 while being engaged with.

When the tray 10 and the container 22 are moved backward a predetermined distance and the disk 5 is housed in the housing 2, the right end of the arm 97 protrudes in substantially the same piece as shown in FIG. 15(C). The provided bin 97b comes into contact with the cut-and-raised portion 7[ of the chassis 7. As the bottle 971) comes into contact with the cut and raised portion 7[, the engaged state between the arm 97 and the detection switch 98 is maintained. Therefore, motor 20
continues to rotate, and the disk 5 is conveyed further backward. Accordingly, the arm 97 is rotated counterclockwise in FIG. 15(C) by the cut and raised portion 7f, and the engagement state of the arm 97 with the disk 5 is released. In this state, the rotation center of the disk 5 substantially coincides with the rotation axis of the turntable 450.

At the same time as the engagement between the arm 97 and the disk 5 is released, the bin 26 leaves the cam groove 14e and enters the four portions 7C formed in the chassis 7, as shown in FIG. This locks the t-ray 10 against the chassis 7 and therefore the housing 2, and at the same time locks the t-ray 10 against the moving member 1.
4 and the locked state of the container 22 with respect to the tray 10 are 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 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 13u and 14(l) 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. The vertical movement stroke of the support member 51 is approximately 8.5+u++, and the vertical movement stroke of the container 22 is approximately 6°51. The movement stroke of the container 22 is 2 mm smaller than the movement stroke of the support member 51, but this is because the cam holes 13d and 14d with which the pin 22a protruding from the container 22 is slidably engaged are This is a result of having a horizontal portion in the middle of the .

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

Of the operation button group 6 arranged on the front panel 3,
When the play start switch 6a is pressed and an operation signal for performance is issued, the turntable 45 rotates and at the same time the 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. 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 played once, the play start switch 93 is activated by slightly pushing the disc in the disc insertion direction, and the play is performed again.

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

Effects As detailed above, in the A-loading disc player according to the present invention, the slot-in type facilitates disc loading, and the overall compactness makes it suitable for outdoor use. be.

In particular, in the autoloading disc player according to the present invention, the performance means including the turntable (45) and the optical pickup means are provided with the vibration isolating member (29).
) is attached to the disk transport mechanism (including the chassis 7, etc.).

Therefore, the playing means is hardly affected by external vibrations such as car body vibrations, and smooth playing is possible.
This prevents failure or damage to the disk playing means due to vibrations. In other words, the vibration resistance of the disc playing means is good.

[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 (ω. mountain), +C) is a partially detailed view of the internal structure, Figure 15 (a
). (b>, (C) to Fig. 18 are diagrams for explaining the operation of the autoloading disc player. Explanation of symbols of main parts 2...Housing 2a, 10d...・Opening 2b...Lid 3...Front panel 3a...Slot 5...Disk 6
......Operation button group 6a...Play start switch 7...
・Shi V-shi 7a...Main body 7b...Sub-chassis 7G...Four parts 7f...Cut and raised portion 8...Vibration isolating member 10...Tray 10
a...Body 10t)...Side wall member 1
0c, 10e, 17c, 17d, 22a. 26.518, 54a, 54e, 55a. 55e, 57a, 58a, 58f, 85a. 86a, 97a, 97b---Pin 10f, 10(J, 13a, 13b, 14a. 14b, 14f, 31b, 57f, 57g. 580.85b---Long hole 12.105---Bracket 13.14...Moving members 13d, 13o, 14d, 14G...Cam hole 1
4G... Rack part 14e... Cam groove 15... Guide bar 17... Interlocking shafts 17a, 17b... Arm 19... ... Power transmission mechanism 19a ... First stage gear 19b ... Last stage gear 20 ... Motor 20a ... Worm 22 ... Container 23 ...Protective discipline 2
5.85... Lever 28.51... Support member 29... Vibration isolating members 30a, 30b... Guide shaft 31...
...Sliders 31a, 31c...Screws 31e...Protrusions 33...Case 33
a... Objective lens 33b... Notch 34... Carriage 35... Offset screw 35a... Threaded portion 35b...・Circular head 37...Screw shaft 38...Motor 39...Pulley 41...
...Plate spring 42 ... Half nut 45 ... Turntable 46 ... Spindle motor 46a ... Output shaft 46b ... Bearing section 47a ······Retention! 3+ia 47b...
- Idler 52... Pressing member 52a... Magnet 52b... Buffer member 52C... Circumferential groove 54.55... Holding plate 54b , 55b...Circular parts 54C, 55c...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 bracket 76.77...Flexible longitudinal members 76a, 77a
...Flexible portion 78,79...Fixing member 86...Preventing member 86b...Preventing portion 91...Guiding member 91a... ...Taber section 93...Play start switch 94...
...Intermediate member 96...Support shaft 97...
・Arms 98, 101, 103, 104...Detection switch 99...Switch holding member 101a...Actuator Applicant: Pioneer Co., Ltd. Representative Patent attorney Motohiko Fujimura Page 1 Continuation of 0 Invention Author: Toshiyuki Kimoto Tokorozawa Jikaen Garden

Claims (3)

[Claims] (1) A disc 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 provided within the housing, and a disc carrier 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, a drive mechanism for driving the carriage, a turntable, and a drive for rotationally driving the turntable. a source, said carriage, a guide means, a drive mechanism,
An autoloading disc player comprising: a support member that supports a turntable and a drive source, the support member being attached to the disc transport mechanism via a vibration isolating member. (2) Support points of the support member are provided at equal distances on an arc centered on the center of gravity of the performance means, and the vibration isolating member is provided at the support points. Autoloading disc player as described. (3) The drive mechanism is disposed together with the carriage at a position sandwiching the turntable, and is arranged on an arc centered on the midpoint of the movement locus of the center of gravity of the carriage and the rotation axis of the turntable. 3. The autoloading disc player according to claim 1, wherein a support point of said support member is provided equidistantly from said support member, and said vibration isolating member is provided at said support point.