JPS60214455A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To improve the vibration resistance performance by providing a buffer member to at least any face of counter face with a pressing member and a part of housing opposed to the pressing member when the support member supporting freely turnably the pressing member acting like disclamping is in the disclamping position. CONSTITUTION:The pressing member 52 has a magnet 52a formed in a ring form and applies disclamping with the magnetic force of the magnet. Moreover, the pressing member 52 and the support member 51 supporting freely turnably it are made of a magnetic substance such as a steel plate and when the support member 51 is in the disclamping position, the pressing member 52 is adsorbed to the support member 51 by the magnetic force of the magnet 52a. Further, a buffer member 52b made of felt is adhered to the upper face of the pressing member 52 so as to prevent the upper face of the pressing member 52 from being contacted directly with the housing 2 because of vibration of the support member when the support member 51 is in the disclamping position.

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.

Disc players for playing information recording discs such as i1L digital audio discs have already been developed and have recently become widely used in ordinary households.

However, since such conventional disc players are designed to be installed indoors in a quiet place, they are not suitable for outdoor use. Requirements for a disc player used outdoors include ease of loading discs, overall compactness, and good vibration resistance and dust resistance.

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

The A-loading 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 disposed within the housing including a turntable, and a disc carrier for holding the disc in a predetermined position and transporting the disc to the playing position. including a disc transport mechanism and a clamp mechanism that clamps the disc transported to the performance position,
5. The clamping mechanism includes a suppressing member that cooperates with the turntable to perform a disk clamping action, and a suppressing member that is movable between a clamp position and a non-clamping position with respect to the turntable, and rotates the suppressing member. a support member that freely supports the support member, and a buffer is provided on at least one of the opposing surfaces of the pressing member and a portion of the housing that faces the suppressing member when the supporting member is in the non-clamping position. It is characterized in that a member is provided.

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-right direction referred to here refers to the direction toward the front indicated by arrow Y. Therefore, the direction of arrow X in the figure indicates the left side, and the direction of arrow 2 indicates upward. In addition,
The disk 5 uses a laser beam to record and read signals, and has an outer diameter of about 12 CIll. The front panel 3 is also provided with a group of operation buttons 6 for operating the disc player, such as play start and eject.

As shown in FIGS. 2 to 6, a chassis 7 serving as a support member is provided within the housing 2. As shown in FIGS. In addition,
The chassis 7 consists of a main body 7a and a sub-chassis 7b fixed to the front end of the main body. As shown in FIGS. 1 and 12, the chassis 7 is supported by the housing 2 via four 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. 6, the tray 10 is composed of a main body 10a formed in a straight line shape and a side wall member 10b screwed to the right end of the main body. A bracket 12 is fixed to the left end of the chassis 7, and a bin 10G protruding from the left end of the tray 10 slides into a long hole 12a formed in the bracket 12 by extending in the front-rear direction. It is supported by freely engaging.

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

Specifically, the movable member 14 is supported by a long hole 14a formed in the movable member extending in the front-rear direction and slidably engaged with a bin 10e protruding from the right end of the tray 10. There is. Further, the left moving member 13 is located between the tray 10 and the bracket 12, and a long hole 13a extending in the front-rear direction is formed in the moving member, and a bin is provided at the left end of the tray 10. It is supported by slidably engaging with 10C. In addition, tray 1
0 is slidably engaged with and supported by a guide bar 15 at two support points spaced apart in the tray movement direction, that is, the front-rear direction. An interlocking shaft 17 having arms 17a and 17b fixed to both ends thereof is provided at the rear end of the tray 10 and extends in the left-right direction, and is rotatably supported by the tray 10. Tips 92 of the arms 17a and 17b; bins 17c and 17d are respectively protruded from the inner surfaces of the arms 17a and 17b; They are slidably engaged with the holes 13b and 14b, respectively. At the right end of the chassis 7 is a power transmission mechanism 1 consisting of a plurality of gears rotatably supported.
9 is provided. A motor 2o is fixedly installed in front of the power transmission mechanism 19, and as is particularly clear in FIG. 4, an INI? A-me 2
0a meshes with the first stage gear 19a of the power transmission 11 mechanism 19.

Also,? ) The final stage gear 19b of the lever transmission mechanism 19 is meshed with a rack portion 14d formed at the lower end of the left side surface of the movable member 14 in the moving direction of the movable member, that is, in the front-rear direction. In addition, the final stage gear 19b and the rack part 14
The engagement position with d 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. Note that a protective IH [t23 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. container 2
A total of four bins 22a, one pair each, are provided at both left and right ends of the bins 22a, extending in the left-right direction. The container 22 is configured such that each of the bins 22a is slidably engaged with four elongated holes 10f formed in the tray 10 to extend in the vertical direction. It is supported so as to be movable within a predetermined range. The bin 22a of the container 22 also has the long hole 10f.
After passing through, it is slidably engaged with cam holes 13d and 14d formed in the moving part IJ13.14, respectively. The cam holes 13d and 14d have a tapered portion that slopes upward in the disk insertion direction, that is, from the front to the rear, that is, in a direction in which the container 22 moves away from the turntable, which will be described later, and an end of the tapered portion in the disk insertion direction, that is, the rear end. It is composed of a horizontal portion that continues and extends rearward, and a tapered portion that continues from the rear end of the horizontal portion and extends parallel to the tapered portion. That is, the container 22 is configured to move up and down as the moving members 13 and 14 move back and forth.

Next, the container 22 is placed on the tray 10 until the tray 10 reaches a predetermined position on the turntable that will be covered later, that is, a position where the center of rotation of the disk 5 held in the container 22 substantially coincides with the rotation axis of the turntable. A lock/release means for locking the container 22 against the tray 10 and releasing the locked state of the container 22 with the tray 10 when the tray 10 reaches the predetermined position and locking the trays 1 to 10 to the housing 2 will be described.

As shown in FIGS. 4 and 6, a four part 7C is formed at the right end of the main body 7a of the chassis 7. As shown in FIGS. On the other hand, a cam groove 14e is formed in the right moving member 14 so that the position in the tray movement direction coincides with the position of the 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 14e projects from the swinging end of the lever. That is, the pin 26 is adapted to selectively engage with the recess 7C and the cam groove 14e. In addition, the moving member 14
is formed to extend forward continuously from the cam groove 140 and is slidably engaged with the eyelet pin 26 to prevent movement of the moving member 14 after the tray 10 reaches the predetermined position on the turntable. A long hole 14f is formed to allow this.

These recessed portions 7c, cam grooves 14e1, elongated holes 14f, and bins 2
6 locks the container 22 to the tray 10 until the tray 10 reaches a predetermined position on the turntable, and releases the lock state of the container 22 with the tray 10 when the tray 10 reaches the predetermined position. A lock that locks the tray 10 to the housing 2.
A release means is configured.

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

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

As shown in FIG. 6, a support member 28 having a substantially U-shape as a whole is disposed on the lower surface of the chassis 7, which is a part of the disk transport mechanism, and is made of flexible rubber or the like. The chassis 7 is
is attached to. Two guide shafts 30a and 30b are fixed to the support member 28 and extend in parallel to the rotating portion of the turntable, in this case in the front-rear direction, and serve as guide means. A slider 31 formed in a substantially U-shape is movably supported on the guide shafts 30a and 30b at both sides in the direction of movement, that is, at both left and right ends.

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

Here, as shown in FIG. 2, for example, in the tray 10 forming a part of the disk transport mechanism, the disk transport mechanism is in the disk transport front position fffi (the state shown in FIG. 2) and the carriage is 34 is home position,
That is, when the objective lens 33 is in the rest position before playing,
A circular opening [1 part 10d] is formed opposite to a.

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 and covers 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 the carriage 34 are in the above-mentioned pre-performance position. Needless to say, an opening similar to the opening 10d is formed in the opening 10d. Further, as shown in FIG. 1, there is also a circular opening 2 on the top surface of the housing 2.
a is formed. Similar to the above-mentioned opening 10d, this opening 2a is also used when the objective lens 33
It is positioned opposite to a. The housing 2 also includes a lid 2 that can close the 17i10 section 2a.
b is fixed with a screw. By providing such an opening in the housing 2, the objective lens 33a can be cleaned without removing the housing. Although not described in detail, it is also possible to adjust the light irradiation power of the optical pickup means through the openings 10d, 2a, etc.

However, as shown in FIGS. 9 and 10, the end of the slider 31 in the moving direction has a long hole 31 extending in the left-right direction in a plane perpendicular to the slider moving direction.
b is formed. . The elongated hole 31b is provided corresponding to one end of the 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 the biasing screw 35, the case 33 is rotated slightly around the support screw 31a.The biasing screw 35 and the circular head 35b of the biasing screw are fitted together. The matching elongated hole 31b constitutes an adjusting means for adjusting the rotation angle position of the case 33, that is, adjusting the so-called tangential direction of the optical pickup means (not shown) provided in the case. has been done. In addition,
After this adjustment is completed, it is fixed with the screw 31c.

As shown in FIGS. 6 and 11, a screw shaft 37 is rotatably attached to both ends of the support member 28 and is arranged parallel to the guide shafts 30a and 30b. A motor 38 is arranged in front of the screw shaft 37.
is configured to be rotationally driven by the motor via 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 4
1 is fixed in the form of a cantilever beam, and a half nut 42 screwed onto the screw shaft 37 is attached to the free end of the leaf spring.
is permanently installed.

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 turntable 45 is disposed on an extension of the movement trajectory of the carriage 34 at a position sandwiched between the carriage and the drive mechanism that drives the carriage, and is fixed to the supporting member 28. ing. 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? g
A gap of about 10 μm normally occurs between the output shaft 46a and the turntable 46b, but by providing the above contact means, this gap is corrected and the output shaft 46a, and thus the turntable 45, can rotate accurately and smoothly. It becomes.

The above-mentioned support member 28 and guide shafts 30a, 3
0b, the carriage 34, the drive mechanism including the motor 38 (driving the key 1ν ridge 34), and the turntable 4.
5, the spindle motor 46, the idler 47b, etc., and the peripheral small members related thereto constitute a playing means for playing a disc.

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

The four support points of the support member 28 with respect to the chassis 7, that is, the positions where the vibration isolating member 29 is arranged are centered on the midpoint between the movement trajectory of the center of gravity of the carriage 34 and the rotation axis of the turntable 45. They are placed at equal distances on the arc.

The vibration isolating member 29 is provided to protect the performance means from external vibrations such as body vibrations of the automobile in which the in-vehicle autoloading disc player is mounted, and the supporting point of the supporting member 28 is as described above. By arranging the vibration isolating member 29 at the support point, the vibration isolating effect is significantly improved. The support point of the support member 28 is set as described above in consideration of the change in the center of gravity of the playing means as the carriage 34 moves. Even if the support points of the support member 28 are provided on an arc centered on the center of gravity of the playing means at the midpoint and equidistant from each other, and the vibration isolating member 29 is provided at the support points, a large vibration damping effect can be obtained. can get.

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

As shown in FIGS. 2, 3, and 6, a plate-shaped support member 51 is provided above the container 22 at a position sandwiched between the moving members 13 and 14. A total of four wooden bins 51a are provided at both left and right ends of the support member 51.
are provided extending in the left and right direction. The support member 51 is configured such that each of the bins 51a is slidably engaged with four long holes 10g formed in the tray 10 extending in the vertical direction, so that the support member 51 can move the tray 10 in a direction perpendicular to the tray movement direction.
That is, it is supported so as to be movable within a predetermined range in the vertical direction. The bin 51a of the support member 51 also supports the tray 10.
The movable member 13 is inserted into the elongated hole 10 ( ) of
．． It is slidably engaged with cam holes 130 and 14G formed in 14, respectively. Cam holes 13o and 141
] is linearly inclined upward in the direction in which the support member 51 moves away from the turntable 45, that is, from the front to the rear. In other words, the support member 51 moves up and down with respect to the turntable 45 as the moving members 13 and 14 move back and forth.

Note that the cam holes 13d formed in the moving members 13 and 14
, 13o 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 13 (+ and 14 (l) that engage with the cam holes 13 (+ and 14) are referred to as second cam holes.
o is approximately equal to the total length in the disk insertion direction.

The support member 51 is rotatably provided with a pressing member 52 that cooperates with the turntable 45 to perform a disk clamping action. Note that the position shown in FIG.
1 unclamped position. Further, the position of the support member 51 when the support member 51 moves downward by a predetermined amount and the suppression member 52 comes into contact with the surface of the disk placed on the turntable 45 is referred to as a clamp position. Support member 5
1 moves between the clamped position and the unclamped position. As also shown in FIG. 3, the pressing member 52 has annularly formed magnets 1 to 528, and the magnetic force of the magnets forms a disk clamp. Further, the pressing member 52 and the supporting member 51 that rotatably supports the pressing member 52 are made of a magnetic material such as a steel plate, and when the supporting member 51 is in the non-clamped position, the suppressing member 52 is moved by the magnetic force of the magnet 1-52a. It is adapted to be attracted to the support member 51. Also, as shown in Figure 6,
The upper surface of the pressing member 52 has a loose WtJ made of felt or the like.
A member 5211 is attached to prevent the top surface of the pressing member 52 from coming into direct contact with the housing 2 due to vibrations of the supporting member when the supporting member 51 is in the non-clamped position. However, this buffer member 52 is not limited to the -L 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-clamping position.

As is particularly clear in FIG. 2, a pair of left and right holding plates 54 and 55 are arranged on the lower surface of the support member 51, sandwiching the pressing member 52, and each holding three bottles 54a and 55.
Support member 51 is movable in the left and right direction via 5a.
is attached to. Each opposing portion of the clamping plates 54, 55 is formed with circular arc portions 54b and 55b that are fitted into a circumferential groove 52c (shown in the third figure) formed on the outer periphery of the suppressing member 52. 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 57.58 are also disposed on the lower surface of the support member 51 behind the clamping plates 54.55, and are rotatable to the support member 51 by touching the bins 57a and 58a, respectively. installed. Each synchronization plate 57, 58 has three arm portions 57c, 57d, 57e and 58c, 58.
d and 58e. A long hole 57f is formed at the tip of the arm portion 57c, and a bottle 58r protruding from the tip of the arm portion 58c is slidably engaged therein.

Furthermore, elongated holes 57(+', 58(+) are formed at the tips of the arm portions 57d and 58d that protrude approximately forward.
The cylindrical elongated holes are provided with bottles 54 protruding from the holding plates 54 and 55, respectively.
e and 55e, respectively, in a slidable manner. In other words, the synchronizing plates 57 and 58 are configured to synchronize the operations of the clamping plates 54 and 55. Note that the clamping plate 54 and the synchronizing plate 57 are collectively referred to as the first positioning member 61, whereas the clamping plate 55 and the synchronizing plate 58 are referred to as the second positioning member 61.
They are collectively referred to as positioning members 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 suppressing member 52, and each engages with the outer periphery of the pressing member 52 at two points (claws 54c, 55C), for example. You get it.

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 the positioning members, with the outer periphery of the pressing member, that is, the claws 54c and 55G approach the outer periphery of the suppressing member. It is biased by a coil spring 64 as a means.

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

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

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

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

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

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

However, the bottle member 5711 is not shown. When loading or ejecting a disc, the disc 5 is clamped by each of the bin members, and at the same time as the disc 5 is clamped, the disc 5 is pushed into the container 22 by a component force generated by the action of the taper of each bin member. It is pressed toward the disk supporting surface.

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

As shown in FIGS. 2 and 6, a small bracket 71 shaped like a single character is fixed to the upper end of the right moving member 14, and the small bracket 71 has a bin member 71 fixed thereto.
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, 62 are operated, and the bin members 54f, 55f, 57h provided on the positioning members 61, 62 are moved.

The engagement state between the disc 5811 and the outer periphery of the disc, that is, the disc 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 receives thrust from a component force generated by the taper action of the bottle member 72.

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

As shown in FIG. 13, inside the disk insertion slot 3a formed in the front panel 3 constituting the front part of the housing, a flexible material such as rubber is formed into a plate shape. A pair of flexible longitudinal members 76 and 77 are provided, which are arranged such that one end thereof in the hand direction faces each other and close the slot 3a at the main surface. Each of the flexible longitudinal members 76 and 77 has a pair of fixed portions 'JtA7B, 7' each having an L-shaped cross section at its other end in the transverse direction, that is, at its non-opposing end.
9 is attached to the front panel 3.

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

Each of the opposing ends of the flexible elongated members 76 and 77 is chamfered in an arcuate shape, so that the contact between each of the flexible elongated members and the disk 5 is smooth. In addition, flexible portions 76a and 77a, which are formed thinly and are particularly easy to bend, are provided near each opposing end portion of the flexible longitudinal portions 4476.77, respectively.

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

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

As shown in FIGS. 2, 5, and 6, a lever 85 extending approximately in the front-rear direction is arranged 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 a substantially central portion in the direction of the arm. This lever 85
is adapted to rotate in conjunction with the moving member 13. On the other hand, a prevention member 86 is provided in front of the lever 85 so as to be movable in the vertical direction (in the direction of arrow Z and the opposite direction). A bottle 86a is attached to the left end of the prevention member 86.
is provided protrudingly, and the bottle is slidably engaged with a long hole 85b formed in the front end of the lever 85.

The L bar 85 and the prevention member 86 constitute a disk double insertion prevention means for preventing double insertion of disks from the slot 3a. That is, the lever 85
As the prevention member 86 moves up and down in accordance with the rotation of
Insertion of a disk from the slot 3a is blocked by crossing the slot 3a.

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

As shown in FIG. 2, FIG. 6, FIG. 14(a), and (C), the disk 5 inserted through the slot 3a is placed on the container 22 at the deep part of the housing 2 and on the disk insertion path. A guide member 91, which acts as a guide means for guiding to a predetermined position, is arranged to face the disk supporting surface of the container 22, and is fixed to the lower surface of the tray 10, for example. The guide member 91 is formed by bending a steel plate, for example, and has a tapered portion 91a that slopes toward the disk supporting surface of the container 22 in the disk insertion direction at its front end.

As shown in FIGS. 2, 6, and 14(a), the disc 5 inserted through the slot 3a and positioned at the predetermined position is inserted into the rear end of the tray 10. A play start switch 93 is provided so as to engage the outer periphery of the disc when pushed slightly in the direction. However, this play start switch 93 is provided with an intermediate member 94 (also shown in FIG. 14(b)) which is provided in front of the play start switch so as to be movable in the front-rear direction and is provided with a forward bias. It engages with the outer periphery of the disk via.

As shown in FIG. 2, a support shaft 96 extending in the vertical direction is fixed to the lower surface of the right end of the main body 10a of the tray 1o. 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 for holding 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 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).

The above-mentioned support shaft 96, arm 97, detection switch 98,
The switch holding member 99 and the peripheral small members related thereto constitute a mechanical detection means for detecting that the disk 5 is positioned on the container 22. Further, when the tray 10 moves a predetermined distance backward from the position shown in FIG. 2 and reaches a predetermined position, the arm 97
A bottle 97b protruding from the right end of the chassis 7 is arranged so as to come into contact with the cut-and-raised portion 7'' near the rear end of the chassis 7.

J shown in Figures 6 and 11: Sea urchin, carriage 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 fixed to a support member 28 that supports a carriage 34, etc., and when a protrusion 31e protruding from a slider 31, which is a component of the carriage 34, engages with an actuator 101a of the detection switch, a detection signal is generated. It is designed to emit.

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

Further, as shown in FIG. 6, a movable member 14 is located at the right end of the chassis 7 and behind the detection switch 103.
A detection switch 1 detects that the movable member has reached the rearward movement limit position by engaging with a portion of the movable member, and therefore that disc loading and clamping have been completed.
04 is fixedly installed. However, this detection switch 104
is attached to the chassis 7 via a bracket 105.

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

Next, the operation of the above-mentioned automatic loading disc player 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.
38 into the housing 2. At the same time as the disk 5 is inserted from the throwers 1 to 3a, it engages with the bin members 5/If and 55f, which are arranged in the positioning members 61 and 62 shown in FIG.
Proceed while pushing 62 to the left and right. Left and right pin members 5
When the H rotation center of the disk 5 crosses the line connecting the axial centers of /H and 55f, both pin members 54t and 55f are biased toward the outer circumference of the disk, so even if you release your hand, the disk 5 will not move. It is drawn into the housing 2. Also,
At this time, the guide member 91 effectively guides the disk 5, and the disk 5 is positioned at a predetermined position on the container 22. Note that the disk 5 has four pin members 541.55.
Since the disks are positioned while being held by f, 57h and 58h, once positioned, the disks will not be displaced by external vibrations such as vehicle body vibrations.

As shown in FIG. 15 +a>, +b>, the disk 5
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 pin 97a of the arm 97, and the arm is rotated, for example, counterclockwise in FIG. 15(a). . Therefore, the left end of the arm 97 engages with the detection switch 98 and operates the detection switch (state of the song in Figure 15). Then, the motor 20 starts rotating and the moving member 14 is driven backward via the power transmission mechanism 19. However, it is clear from Figures 4 and 6 that 4
A lever 2 is swingably provided on the tray 10.
5 is engaged with a cam groove 148 formed in the moving member 14,
The moving member 14 cannot be moved relative to the tray 10, so the container 22 is locked relative to the tray 10. Therefore, due to the rotation of the motor 20, the moving member 14
．． 13, tray 10, and container 22 are only moved rearward. Note that the bin 26 slides on the right end of the chassis 7 while being engaged with the cam groove 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 stored in the housing 2, the bin protruding from the right end of the arm 97 opens as shown in FIG. 15(C). 97b is the cut-and-raised portion 7 of the chassis 7
Abuts on f. In this way, the bottle 97b is cut and raised at the part 7.
By coming into contact with [, the engagement state between the arm 97 and the detection switch 98 is maintained. Therefore, the motor 20 continues to rotate, and the disk 5 is further transported rearward. Along with this, the arm 97 is moved by the cut-and-raised portion 7r if!
The arm 97 is rotated counterclockwise in FIG. 15(C), 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 45.

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

In this way, only the movable members 14 and 13 continue to move backward until the state shown in FIG. 17 is reached. That is, the bottle 22a protruding from the container 22 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 13 (+ and 14 (I) formed in the moving members 13 and 14, respectively, the suppressing member 52 approaches the disk 5 together with the supporting member 51 as shown in FIG. 18, and the disk 5 The movement stroke of the support member 51 in the vertical direction is approximately 8.5 mm+, and the movement stroke of the container 22 in the vertical direction is approximately 6°5 mm. Although the movement stroke is only 2+nm smaller than the movement stroke of
This is a result of having a horizontal portion in the middle of the cam hole.

When the movable member 14 reaches the rear limit position at the same time as the disk 5 is clamped, a part of the movable member engages with the detection switch 104 to operate the detection switch, as shown in FIG. Motor 20 is stopped. Performance is possible in this state. Note that the moving member 13
The lever 85 is rotated in conjunction with the rearward movement of the 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 ends and the carriage 34 reaches the limit position of movement, the carriage 34 and turntable 45 are stopped, and at the same time, the motor 20 starts a reversing operation. Therefore, the tray 10, the movable 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 during disk loading described above. Further, the carriage 34 is also returned to its home position.

The disk 5 is thus recovered.

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

Although the autoloading disc player is shown as being 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 autoloading disc player according to the present invention, the slot-in type makes it easy to load discs, and the overall size is small, making it suitable for outdoor use. That's why.

Particularly, in the autoloading disc player according to the present invention, the support member (51) that rotatably supports the pressing member (52) without performing a disc clamping action in cooperation with the turntable (45) is in the non-clamping position. A buffer member (52b) is provided on at least one of the opposing surfaces of the pressing member and a portion of the housing (2) facing the suppressing member. Therefore, noise caused by direct collision between the suppressing member and the housing due to external vibrations or the like is prevented. In other words, the clamp mechanism has good choreography resistance.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view showing the entire in-vehicle autoloading disc player according to the present invention, FIG. 2, FIG.
4 and 5 are a plan view, a front view, a left side view, and a right side view of the internal structure of the autoloading disc player, FIG. 6 is a perspective view of the main parts of the internal structure, and FIGS. Figure 14(a). +b3+c+ is a partially detailed diagram of the internal structure, FIG.
). +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 part 2b... Lid body 3... Front panel 3a... Slot 5... Disc 6
......Operation button group 6a...Play start switch 7...
・Chassis 7a...Main body 7b...Zub chassis. 7C...Four parts 7f...Cut and raised portion 8...Vibration isolating member 10...Tray 10
a...Main body 10b...Side wall member 10
c, 10e, 17c, 17d, 22a. 26.51a, 54a, 54e, 55a. 55e, 57a, 58a, 58f, 85a. 86a, 97a, 97b-=-・Bin 10f, 100, 134, 13b, 14a. 14b, 14f, 31b, 57f, 57Q. 58 Q,, 85 b...Long hole 12.105...Bracket 13.14...Moving member 13d, 13C1, 14d, 14G...Cam hole 14c... ... Rack part 14e ... Cam groove 15 ... Guide bar 17 ... Interlocking shafts 17a, 17b ... Arm 19 ... Power transmission mechanism 19a... First stage gear 19b... Last stage gear 20... Motor 20a... Worm 22... Container 23... ...Protective film 2
5.85... Lever 28.51... Support member 29... Vibration isolating members 30a, 30b... Guide shaft 31...
...Slider 31a, 31C...Screw 31e...Protrusion 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 / 17a... Holding mechanism 47b... Idler 52... Pressing member 52a... Magnet 52b... Buffer member 52c... Circumferential groove 54.55... Clipping plates 54b, 55b... Arc portion 540.55G... Claws 54f, 55f, 5711.5811.72...
- Pin members 57c, 57d, 57e, 58c, 58d. 58e... Arm portion 57.58... Synchronization plate 61... First position determining 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...
・Arm 98, 101, 103, 101...Detection switch 99...Switch holding member 101a...Actuator Applicant Pioneer Corporation 21 Agent Patent attorney Motohiko Fujimura Page 1 Continuation of 0 Inventor: Toshiyuki Kimoto Hanazono, Tokorozawa City. Inside

Claims (1)

[Claims] A housing having a slot into which a disc to be played is inserted, a playing means disposed within the housing including a turntable, and a disc carrier for holding the disc in a predetermined position and transporting the disc to the playing position. The clamp mechanism includes a disc transport iM mechanism and a clamp ml that clamps the disc transported to the performance position, and the clamp mechanism includes a suppressing member that performs a disc clamping action in cooperation with the turntable, and a clamp ml that clamps the disc transported to the performance position. a support member that is provided movably between a clamp position and an unclamped position and rotatably supports the suppressing member, and faces the suppressing member when the supporting member is in the unclamped position. 1. A loading disc player characterized in that a buffer member is provided on at least one of opposing surfaces of a portion of the housing and the pressing member.