JPS60214472A - Automatic loading disc player - Google Patents

Abstract

PURPOSE:To attain miniaturization of the entire player and cost reduction by connecting directly a moving member of a container storing a disc and a support member of a clamp mechanism. CONSTITUTION:The tray 10 and the moving members 13, 14 constitute a disc storage section. A plate form support member 51 positioned above the container 22 has four pins 51a and the support member 51 is supported by engaging the pins 51a freely slidably to an oblong hole 10g of the tray 10. The pins 51a are engaged freely slidably to cam holes 13g, 14g of the moving members 13, 14. The pin 51a is slided along cam holes 13g, 14g through the backward movement of the moving members 13, 14, and the pressing member 52 approaches the disc together with the support member 51 so as to clamp the disc.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field - 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 digital audio discs have already been developed and have recently become widespread in ordinary households.

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

1" L The object of the present invention is suitable for outdoor use,
In particular, it is an object of the present invention to provide a disc player that is easy to downsize and reduce costs.

The autoloading disc player according to the present invention comprises:
A housing including a float I~ into which a disc to be played is inserted, a playing means including a turntable and provided in the housing, a disc transport mechanism for transporting the disc to a playing position, and a disc transporting mechanism for transporting the disc to the playing position. a clamping mechanism for clamping the disc;
The disk transport mechanism includes a support member fixed to the housing, a tray stacked on the support member so as to be movable in a direction substantially parallel to the rotating surface of the turntable, and a tray mounted on the tray. a container that is movable in a direction substantially perpendicular to the direction of movement and supports the disk; and a container that is movable in the tray movement direction with respect to the support member and engages with the container through a first cam hole. The clamping mechanism includes a moving member in which a rack portion is formed in the active movement direction, and a driving force applying means that includes a tooth width that meshes with the rack portion and applies a driving force to the moving member, and the clamp mechanism is connected to the turntable. comprising a suppressing member that cooperates to perform a disk clamping action, and a supporting member that is movably provided with respect to the turntable between a clamped position and a non-clamped position and rotatably supports the pressing member, The support member of the clamp mechanism engages with the movable member through a second cam hole, and the lengths of the first cam hole and the second cam hole in the disk insertion direction are approximately equal, and the length of the first cam hole and the second cam hole are approximately equal. a tapered portion that slopes in the disk insertion direction in a direction in which the container moves away from the turntable; a horizontal portion that continues from the end of the tapered portion in the disk insertion direction and extends in the disk insertion direction; and the horizontal portion in the disk insertion direction. and a tapered portion extending parallel to the tapered portion continuously at the end, and the second cam hole is sloped linearly toward the disc insertion direction in the direction in which the support member of the clamp mechanism moves away from the turntable. It is characterized by

1-1-9 Hereinafter, a vehicle-mounted autoloading disc player as an embodiment of the present invention will be described with reference to the accompanying drawings.

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

As shown in FIG. 1, a front panel 3 forming a part of the housing 2 is provided with a slot 3a extending in the left-right direction into which a disc 5 to be played is inserted. However, the left and right direction referred to herein refers to the front direction indicated by arrow Y. Therefore, the direction of the arrow X in the figure indicates the left side, and the direction of the arrow Z indicates the upward direction. In addition,
The disk 5 uses a laser beam to record and read signals, and has an outer diameter of about 12 CI. The front panel 3 is also provided with a group of operation buttons 6 for operating the disc player, such as play start and eject.

As shown in FIGS. 2 to 6, a chassis 7 serving as a support member is provided within the housing 2. As shown in FIGS. In addition,
The shifter 11 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.
0 is composed of a main body 10a formed in a single character 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 sill-shift, and a bin 10c protruding from the left end of the tray 10 is inserted into an elongated hole 12a formed by extending in the front and rear direction of the bracket 12. Supported by slidable engagement.

On the other hand, a pair of moving parts U13 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. The left moving member 13 is located between the tray 10 and the bracket 12, and the moving member has a long hole 13a extending in the front-rear direction and a bin provided at the left end of the tray 10. 10c and is supported by slidably engaging it. In addition, tray 1
0 is slidably engaged with and supported by a guide bar 15 at two supporting points separated from each other in the tray movement direction, that is, in the front-rear direction. An interlocking shaft 17 with arms 17a and 17b fixed to both ends is provided at the rear end of the tray 10 and extends in the left-right direction.
It is rotatably supported. Bottles 170 and σ17d are protruded from the inner surfaces of the distal ends of the arms 17a and 17b, respectively, and each of the bins has an elongated hole 13b formed in the rear end of each of the movable members 13 and 14 to extend in the vertical direction; 14b in a slidable manner. A power transmission 119 consisting of a plurality of rotatably supported gears is mounted on the right end of the chassis 7 in stages. A motor 2o is fixedly installed in front of the power transmission mechanism 19, and as is particularly clear in FIG. ing.

Further, the final stage gear 19b of the power transmission m mechanism 19 is moved BB.
It is engaged with a rack portion 14d formed at the lower fN portion of the left side surface of the member '14 in the moving direction of the moving member, that is, in the front-rear direction. In addition, the final stage gear 19b and the rack part 1
The engagement position with 4d 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.

As described above, by the 1c motor 2o and the power transmission (the horizontal 19 and the interlocking shaft 17 including the arms 17a, 17b, etc.
A driving force applying means is configured to apply a driving force of 4=J 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 1°, 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. In the container 22, each of these bins 22a is slidably engaged with four elongated holes 1 (H) formed by vertically extending in the tray 1o. That is, the bottle 22a of the container 22 is supported movably within a predetermined range in the vertical direction.After passing through the elongated hole 10f, the bottle 22a of the container 22 is inserted into the 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 composed of a horizontal portion that extends rearward and continuous with the end of the tapered portion in the disk insertion direction, that is, the rear end, and a tapered portion that extends parallel to the tapered portion and continues with the rear end of the horizontal portion. The container 22 is configured to move up and down as the moving members 13 and 14 move back and forth.

Next, the tray 10 is placed at a predetermined position on the turntable which will be described later, that is, the disc 5 supported by the container 22.
The container 22 is locked to the tray 10 until the center of rotation of the turntable reaches a position where it substantially coincides with the rotation axis of the turntable, and when the tray 10 reaches the predetermined position, the locked state of the container 22 with the tray 10 is locked. A lock for removing S and locking the tray 10 to the housing 2.
The release means will be explained.

As shown in FIGS. 4 and 6, a four part 7C is formed at the right end of the main body 7a of the chassis 7. As shown in FIGS. On the other hand, a cam groove 14e is formed in the right moving member 14 so that when the tray 10 is at a predetermined position on the turntable, the position () in the tray movement direction coincides with the position of the recess 7o. ing.

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, moving member 1
4 is formed to extend forward continuously from the cam groove 140 and is movably engaged with the pin 26 to prevent the movement of the moving member 14 after the tray 10 reaches the predetermined position on the turntable. A long hole 14 is formed to allow this.

These recesses 7c, cams 1l114e, elongated holes 14f, and pins 26 lock the container 22 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 A lock/release means is configured to release the locked state of the tray 10 from the tray 22 and to lock the tray 10 to the housing 2.

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, there is a J included in the housing 2 for playing the disc.
The means of performance will be explained.

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

As shown in FIGS. 9 and 10, the slider 31 has a screw 31 extending in the direction of movement of the slider, that is, in the front-rear direction.
a is installed), and a rectangular parallelepiped case 33 is rotatably held by the screw. That is, the case 33 rotates in a plane perpendicular to the slider movement direction. Note that, inside the case 33, there is an objective lens 33 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. Further, the slider 31 and the case 33 are collectively referred to as a carriage 34.

Here, for example, as shown in FIG. 2, the tray 10 forming a part of the disk transport is has the disk transport mechanism in the pre-disk transport position (the state shown in FIG. m2) and the carriage 34. A circular opening 10d is formed which faces the objective lens 33a when the instrument is at the home position, that is, the rest position before playing. This n0 section 10d removes dust etc. attached to the surface of the objective lens 33a.
This is provided for wiping the disk transport mechanism without removing it. Therefore, although not described in detail, this is a member that constitutes a part of the disc transport mechanism, and is a member that is interposed between the tray 10 and the objective lens 33a when the disc transport mechanism and carriage 34 are in the pre-performance position described above. Needless to say, an opening similar to the frontage portion 10d is formed in the frontage portion 10d. Further, as shown in FIG. 1, a circular opening 2a is also formed on the upper surface of the housing 2. Like the above-mentioned frontage section 10d, this opening section 2a is also positioned at J: which faces the objective lens 33a when the disk transport mechanism and carriage 34 are in the above-described rest position before playing. A lid 2b that can close the opening 2a is also screwed to the housing 2. By providing such an opening in the housing 2, the objective lens 33a can be cleaned without removing the housing. 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 rotating end of the case 33, and the elongated hole 31b is provided with 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 provides adjustment means for adjusting g1 of 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. It 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 arranged in front of the screw shaft 37.
is configured to be rotationally driven by the motor via power transmission means including a pulley 39 and the like. As is particularly clear in FIG. 11, the slider 31 has a leaf spring 4
1 is fixed in the form of a cantilever beam, and a half nut 42 screwed onto the screw shaft 37 is attached to the free end of the leaf spring.
is permanently installed.

A drive 1llll13 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 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, a notch 33b is formed in the case 33, which is a part of the carriage 34, into which a part of the turntable 45 and the spindle motor 46 facing the case 33 can be inserted. has been done. 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 holder 41tl[j47a is brought into contact with the output shaft 46a of the spindle motor 46. These holding mechanism 478 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
A gap of about 10 μm normally occurs between the bearing portion 46b and the bearing portion 46b, but by providing the above-mentioned close 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 shaft V-lifts 30a, 30
b, a carriage 34, and a motor 38.
14fa (driving the carriage 34), a turntable 45, a spindle motor 46, an idler 47b, etc., and 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. . -1.The support point of the support member 28 is set as above in consideration of the change in the center of gravity of the playing means due to the movement of the xyridge 34. Even if a support point of the support member 28 is provided on an arc equidistant from the center of gravity of the playing means at the midpoint of the movement trajectory, and a vibration isolator 29 is provided at the support point, great vibration isolation can be achieved. Effects can be obtained.

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 stacked in layers at a position above the container 22 and sandwiched between the moving members 13 and 14. There are a total of four bottles 51, one pair each at both left and right ends of the support member 51.
a is provided extending in the left-right direction. Support member 51
The bins 51a are movably engaged with four elongated holes 10g formed in the tray 10 to extend in the vertical direction, so that the tray 10 is provided with a predetermined position in the direction perpendicular to the tray movement direction, that is, in the vertical direction. It is supported so that it can move freely within the range. The bin 518 of the support member 51 is also
0 elongated hole 10 (+), and the movable member 1
3. Cam holes 13fl and 14 (] formed in 14, respectively)
is slidably engaged with. The cam holes 13o and 14g are 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. However, as the movable members 13 and 14 move back and forth, the support member 51 moves up and down with respect to the turntable 45.

Note that the cam holes 13d formed in the moving members 13 and 14
, 13g and 146 and 111, container 22
The cam holes 13d and 14d that engage with the bin 22a of the support member 51 are called first cam holes, and the cam holes 130 and 14 (+ are called second cam holes) that engage with the bin 51a of the support member 51. 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 13 (+ and 14g) in the disk insertion direction.

A pressing member 52 is rotatably provided on the support member 51 and cooperates with the turntable 45 to perform a disk clamping action. 83, 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 Figure 3,
The pressing member 52 has a ring-shaped magnet 52a, and forms a disk clamp that uses 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.
When in the non-clamped position, the suppressing member 52 is attracted to the supporting member 51 by the magnetic force of the magnet 52a. Also, as shown in Figure 6,
An am member 52b made of Fells 1 and the like is attached to the upper surface of the pressing member 52, and the vibration of the supporting member when the supporting member 51 is in the non-clamping position causes the upper surface of the suppressing member 52 and the housing 2 to are designed so that they do not come into direct contact with each other. However, the buffer member 52 is not limited to the upper surface of the pressing member 52, and may be provided on a part of the housing 2 that faces the suppressing member 52 when the supporting member 51 is in the non-clamping position.

As is particularly clear in FIG. 2, a pair of left and right holding plates 54 and 55 are arranged on the lower surface of the support member 51, sandwiching the pressing member 52, and each holding three bottles 54a and 55.
Support member 51 is movable in the left and right direction via 5a.
is attached to. Each opposing portion of the clamping plates 54 and 55 has a circumferential groove 52C (third
Circular arc portions 54b and 551) are formed to be inserted into the circumferential groove 52C of the suppressing member 52.
Two protruding claws 54c and 55C that can be engaged with the bottom surface of the holder are provided.

A pair of left and right synchronization plates 57.58 are also arranged on the lower surface of the support member 51 behind the clamping plates 54.55, and are rotatably attached to the support member 51 via bins 57a and 58a, respectively. It is being taken. Each synchronization plate 57.58 has three arm parts 57c, 57d, 57e and 580.58d.
and 58e. An elongated hole 57'' is formed at the tip of the arm portion 57C, and a bottle 58f protruding from the tip of the arm portion 58c is slidably engaged therein. Elongated holes 571J and 58111 are also formed at the tips of the parts 57d and 58d,
Both holes are provided with bottles 54 protruding from the clamping plates 54 and 55, respectively.
e and 55e, respectively, in a slidable manner. That is, 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, the pair of positioning members 61 and 62 are movably installed in a plane substantially perpendicular to the rotation axis of the suppressing member 52, and each of them has, for example, two positions.
They engage the outer periphery of the suppressing member 52 at the points (claws 54c, 55c).

Moreover, each positioning part '4A61 and 62 is attached to the engagement part with the outer periphery of the pressing member of the clamping plates 54 and 55 which are a part of the two positioning members, that is, in the direction in which the claws 54C and 55c approach the outer periphery of the pressing member. It is biased by a coil spring 64 which is a biasing 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 suppressing 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-described positioning members 61, 62, etc. not only positions the pressing member 52 on the support member 51, but also positions the disk 5 inserted through the slot 3a of the housing 2 at a predetermined position on the container 22. It also acts as a positioning means. As is clear from FIGS. 2 and 6, the positioning members 61 and 62 are arranged on both sides of the disk insertion path, and the container 22 (which together with the tray 10 and the moving section 4413.14 constitutes a disk carrying section) It is movable in a plane substantially parallel to the disk supporting surface of the disk.

The clamping plate 54 is a component of each positioning member 61, 62.
．． T and T bin portions u54r, 55f, 57h and 58h are protruded from the lower surfaces of the synchronizing plates 55 and 57 and 58, respectively. These bin portions U34f.

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 is each bottle member 5. H, 55f, 57h, and 58h urge the positioning members 61 and 62 in the direction toward the outer circumference 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 57h is not shown. Disc 5 when loading or ejecting the disc.
is held between the respective bin members, and at the same time as the disk 5 is held, the disk 5 is pressed toward the disk supporting surface of the container 22 by a component force generated by the taper action of each of the bin members. It is.

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

As shown in FIGS. 2 and 6, a small bracket 71 shaped like a letter is fixed to the upper end of the right moving member 14, and a bin member 72 is attached to the small bracket. It is installed 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 the component I 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 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.) moves around while contacting 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 longitudinal direction faces each other and which close the slot 38' at the 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 members and the disk 5 is smooth. In addition, flexible portions 76a and 77a, which are formed thin and are particularly easy to bend, are provided in the vicinity of each opposing end of the flexible longitudinal members 76, 77, respectively.

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

In addition, when the material of the flexible longitudinal members 76 and 77 is rubber, for example, mixing carbon particles or the like is an effective method for imparting electrical properties to the material.

As shown in FIGS. 2, 5, and 6, on the right side of the bracket 12 fixed to the left end of the chassis 7, a lever 85 extending approximately in the front-rear direction is arranged. 85a, it is rotatably attached to the bracket 12 at a substantially central portion in the longitudinal direction. This lever 8
5 is configured to rotate in conjunction with the moving member 13. On the other hand, a prevention member 86 is provided in front of the lever 85 so as to be movable in the vertical direction (in the direction of arrow Z and in 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's 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 above-mentioned disk transport IN structure, and in this way, a part of the power for transporting the disc is used to prevent double insertion of the disc. The disc double insertion prevention means is driven by using f as the power for driving the means.

This eliminates the need for a special drive mechanism.

Therefore, it is easy to reduce the size and cost of the entire play 17.

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 fa), the disk 5 inserted through the slot 3a and positioned at the predetermined position on the container 22 is inserted into the rear end of the tray 10 in the disk insertion direction. A play start switch 93 is provided so as to engage the outer periphery of the disc when pressed slightly. However, this play start switch 93 has an intermediate member 94 (also shown in the 14th appearance) which is provided in front of the play start switch so as to be movable in the front and back direction and is provided with a forward direction. 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 1Oa 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 @96. This switch holding member 99 is held in place by a second spring (not shown).
A pie spacing is applied in the clockwise direction in the figure. The arm 97 engaged with the switch holding member 99 via the detection switch 98 is also given a repulsive force in the same direction as the switch holding member 99 by this coil spring (not shown).

The above-mentioned support shaft 96, arm 97, detection switch 98,
The switch holding member 99 and the peripheral small members related thereto constitute a mechanical detection means for detecting that the disk 5 is positioned on the container 22. Further, when the tray 10 moves backward by a predetermined amount from the position shown in FIG. 2 and reaches a predetermined position, the arm 1
A bottle 97b protruding from the right end of the chassis 7 comes into contact with a cut-and-raised portion 7f provided near the sharp end of the chassis 7.

As shown in FIGS. 6 and 11, the carriage 34
A detection switch 101 for detecting that the carriage has returned to its home position, that is, the rest position before the performance starts, is mounted on the right side of the stage. 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, at the right end of the chassis 7 and behind the detection switch 103, there is a moving part
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.

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. In response to these signals, the motors 20 and 38 and the spindle motor 46 are
It operates at the timing described later.

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

In addition, Figures 1 to 5 @' are the disk play 17 concerned.
This shows the initial state before the performance.

First, insert the disk 5 into the slot 3 as shown in FIG.
Insert into the housing 2 from a. At the same time as the disk 5 is inserted through the slot 3a, the disk 5 is inserted into the bin member 54 provided on the positioning member 61, 62 shown in FIG. 2, for example.
f and 55f, and moves forward while pushing both positioning members 61 and 62 left and right. When the center of rotation of the disc 5 crosses the line connecting the axes of the left and right bin members 54f and 55f, both bin members 54t and 55f are biased toward the outer periphery of the disc, so even if you release your hand, the disc will not move. 5 is drawn into the housing 2. Further, at this time, the guide member 91 effectively guides the disk 5, and the disk 5 is positioned at a predetermined position on the container 22.

Note that the disk 5 has four bin members 54f and 55f.
, 5N+, and 58h, the disk once positioned will not be displaced by external vibrations such as vehicle body vibrations.

As shown in FIG. 15 (ω, peak), 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 For example, it can be rotated counterclockwise as shown in Figure 15. Therefore, the left end of the arm 97 engages with the detection switch 98 to operate the detection switch (the state shown in FIG. 15(b)). Then, the motor 20 starts rotating and the moving member 14 is driven backward via the power transmission 4R19. 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
By engaging with the cam groove 14e formed in the cam groove 14e, the moving member 14 cannot move relative to the tray 10, and therefore the container 22 is locked relative to the tray 10. Therefore, due to the rotation of the motor 20, the moving member 1
4.13, only the tray 10 and container 22 are moved rearward. Note that the bin 26 slides on the right end of the chassis 7 while being engaged with the cam groove 14e.

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

At the same time as the engagement between the arm 97 and the disc 5 is released, the bin 26 leaves the cam groove 14e and enters the recess 7c formed in the shifter 1r, as shown in FIG. . This locks the tray 10 with respect to the chassis 7 and thus the housing 2, and at the same time locks the tray 10 with respect to the moving member 1.
The locked state of the container 22 with respect to the tray 10 and therefore the locked state of the container 22 with respect to the trays 1 to 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 disk 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 can no longer rotate 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 13a and 14 (+) formed in the moving members 13 and 14, respectively, the pressing member 52 approaches the disk 5 together with the supporting member 51 as shown in FIG.
Disk 5 is clamped. Note that the movement stroke of the support member 51 in the vertical direction is approximately 8.5fflIIl.
Further, the vertical movement stroke of the container 22 at 83 is approximately 6°5Illll. container 22
The movement stroke of the support member 51 is 2IllI11 smaller than the movement stroke of the support member 51. This is because the cam holes 13d and 14d, in which the bottle 22a protruding from the container 22 is slidably engaged, are located in the middle of the cam hole. This is a result of having a horizontal section.

When the movable member 14 reaches the rear limit position at the same time as the disk 5 is clamped, a part of the movable member engages with the detection switch 104 to operate the detection switch, as shown in FIG. Motor 20 is stopped. Performance is possible in this state. Note that the moving member 13
The lever 85 is rotated in conjunction with the rearward movement of the disk, and therefore, the prevention member 86 prevents double insertion of disks from the disk insertion floats 1 to 38.

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, 1 to ray 10, moving member 13, 14, container 22,
The suppressing member 52 is returned to its rest position before playing by following a process that is completely opposite to the operation at the time of disc loading described above. In addition, Killeridge 34 is also returned to the Bohm position.

In this way, the disk 5 is recovered.

J5. When the player wants to play the disc 5 again after it has been played, the player presses the disc slightly in the disc insertion direction to operate the play start switch 93 and perform the play again.

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

As described in detail above, the loading disc play 17 according to the present invention has a slot-in type, which makes it easy to load discs, and since the overall size is small, it can be used outdoors. It is suitable for use.

In particular, in the J'-1-loading disc player according to the present invention, the moving member (1) engages with the container (22) through the first cam holes (13d, 14d).
3, 14), the support member (51) of the clamp mechanism is
They are engaged through cam holes (13o, 11+). That is, by reciprocating the moving member, not only the container but also the clamp mechanism is driven. Although it is not a slot-in type disc player, the front rope ink disc player (7) proposed by the applicant as U.S. Pat. A cam member (35) and a support member (128) corresponding to each of the above are interlocked through the operation of a relatively large member called a cam body (139). By directly engaging the movable members (13, 14) with the support member (51) of the clamp mechanism, members such as the cam body are eliminated.Therefore, the overall size of the player can be reduced. This also makes it easier to reduce costs.

Further, in the autoloading disc brake 17 according to the present invention, the first cam hole and the second cam hole are formed to have substantially the same length in the disc insertion direction, and the first cam holes (13d, 14d) are arranged so that the container is connected to the turntable. a tapered part that slopes away from the tapered part in the disc insertion direction; a horizontal part that extends in the disc insertion direction and continues from the end of the tapered part in the disc insertion direction; The second cam hole (130,
14o), the support member of the clamp mechanism is inclined linearly in the direction away from the turntable toward the disk insertion direction.

In this way, by providing the horizontal portion at the intermediate portion of the first cam hole, the movement stroke of the container (22), which is reciprocated as the moving members (13, 14) move, can be controlled together with the container. This makes it possible to make the movement stroke smaller than the movement stroke of the support member of the clamp mechanism that is reciprocated by the moving member. Therefore,
This makes it easier to make the player as a whole smaller, especially thinner.

[Brief explanation of the drawing]

FIG. 1 is a TI schematic perspective view showing the entirety of an in-vehicle autoloading disc player according to the present invention, and FIGS. 2, 3, 4, and 5 are internal structures of the A-1 to loading disc players. are respectively a plan view, a front view, a left side view, and a right side view, FIG. 6 is a perspective view of the main part of the internal structure, FIGS. 7 to 14 (al. Detailed view of the part, Fig. 15 (ω
. 18) to 18 are diagrams for explaining the operation of the J'-loading disc player. Explanation of symbols of main parts 2...Housing 2a, 10d...Front area 2b...Swallow body 3...Front panel 3a... Slot 5・Old・・Disk 6・・
...Operation button group 6a...Play start switch 7...
- Chassis 7a... Main body 7b... Rib chassis 7C... Concave portion 7f... Cut and raised portion 8... Vibration isolating member 10... ...Tray 10
a...Main body 10b...Side wall member 1o
c, 10e, 17c, 17d, 22a. 26.51a, 5/1a, 54e, 55a. 55e, 57a, 58a, 58f, 85a. 86a, 97a, 97b...---L'/10f, 1
0G, 13a, 13b, 14a. 14b, 14f, 31b, 57f, 57Q. 58g, 85b... Long hole 12.105... Bracket 13.14... Moving member 13d, 130.14d, 14Q... Cam hole 1
4c... Rack part 14e... Cam groove 15... Guide bar 17... Interlocking shafts 17a, 17b... Arm 19... ...Power transmission m structure 19a...First stage gear 19b...Final stage gear 20...Motor 20a...A-memory 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 47a ...Holding mechanism 47b...Idler 52...Press member 52a...Magnet 52b...Buffer member 52c...Yen Circumferential grooves 54, 55... Holding plates 54b, 55b... Arc parts 54G, 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... ... Taper part 93 ... Play start switch 94 ...
...Intermediate member 96...Support shaft 97...
・Arm 98.101, 103.104...Detection switch 99...Switch holding member 101a...Actuator hair/1 illustration/2 closed 1 #/, 5 times, (a [b) Continuation of East 18, page 1 @ Inventor Shimoda, Kasuri style Tokorozawa City Hanadan @ Inventor Back 1) Kenji Tokorozawa City Hanadan

Claims (1)

[Claims] a housing provided with a slot into which a disc to be played is inserted; a playing means that includes a turntable and is provided in the housing; a disc transport mechanism that transports the disc to a playing position; a clamping mechanism for clamping a disc, and the disc transport mechanism is provided with a support member fixed to the housing and movable with respect to the support member in a direction substantially parallel to a rotational surface of the turntable. a tray that is movably provided on the tray in a direction substantially perpendicular to the tray movement direction and supports the disk; A moving member that engages through a cam hole and is formed with a rack portion in the moving direction, and a driving force applying means that includes a gear that meshes with the rack portion and applies a driving force to the moving member, The clamping mechanism includes a suppressing member that cooperates with the turntable to perform a disc clamping action, and a suppressing member that is movable between a clamped position and a non-clamped position with respect to the turntable, and rotatably supports the pressing member. a support member of the clamp mechanism, the support member of the clamp mechanism engages the movable member through a second cam hole, and
The lengths of the cam hole and the second cam hole in the disk insertion direction are approximately equal, and the first cam hole has a tapered portion that is inclined toward the disk insertion direction in a direction in which the container moves away from the turntable, and a tapered portion of the tapered portion. The second cam hole is made up of a horizontal part that extends in the disk insertion direction and continues from the disk insertion direction, and a tapered part that extends parallel to the tapered part and continues to the disk insertion direction north end of the horizontal part, and the second cam hole is connected to the clamp mechanism. An autoloading disc player characterized in that the supporting member is linearly inclined in a direction away from the turntable toward a disc insertion direction.