JPH0756724B2 - Multi magazine disc player - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player that plays by mounting a plurality of magazines in which a plurality of discs can be taken out one by one.

BACKGROUND ART An example of a disc player which stores a plurality of discs in advance and selectively plays them is disclosed in JP-A-60-40563.

In such a disc player, the discs are arranged at narrow intervals, and the disc replacement work is not always easy. Further, it is necessary to cover the disc storage portion with a housing for the protection of the disc, and it is also necessary to open and close the disc for replacing the disc. Therefore, if you partially replace the disc after storing it once,
It is troublesome because you have to remove the housing and check the disc labels one by one to replace them.

In particular, when such a disc player is used for karaoke, the range of requests is wide, and there is no storage space for satisfying all requests, and discs with high frequency of requests are stored in advance in the storage part of the player. Incidentally, when a piece of music that is not stored in the pre-stored disc is requested, the spare disc must be taken out and replaced. However, there is no time to spare and the replacement work is extremely difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a magazine disc player which achieves automatic playing of many discs and has good operability especially for disc replacement, and is low in cost and easy to miniaturize. Is.

The magazine disc player according to the present invention includes a mounting portion capable of holding a plurality of magazines each capable of accommodating a plurality of discs, a positioning means for guiding and positioning the playing means in the direction in which the magazines are arranged, and the magazine. Disk moving means for moving the disk between the playing means, the positioning means for stopping the playing means upon detecting that the playing means has reached a position corresponding to the storage position of the selected disk. Playing means position detecting means, the playing means position detecting means is provided in parallel with the magazine number markers provided corresponding to the respective mounting positions of the magazines, and the playing means is provided in juxtaposition with the magazine number markers. A group of disc position markers arranged in order along the moving direction of the disc and corresponding to the storage positions of the discs in the magazine, and the magazine number. A magazine number detecting means for detecting the label is characterized by comprising a disk label detecting means for detecting the disc position indicator group.

EXAMPLES Hereinafter, a magazine disc player as an example of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the player housing of the magazine disc player comprises a main housing 1 and a sub-housing 2 which is removably inserted and mounted in the main housing. Main housing 1 front panel
1a is provided with an opening 1b extending in the horizontal direction for inserting the sub-housing 2 and an operating portion 3 for operating the magazine disc player. In the figure, the arrow Y indicates the front of the magazine disc player, and the arrows X and Z indicate the left and the upper, respectively. Further, the magazine disc player is suitable for so-called karaoke, and the front panel 1a of the main housing 1 has a coin slot 1c into which coins are inserted to enable the operation of the magazine disc player, and the inserted coins. And a coin collecting case 4 for collecting the coins.

As shown in FIGS. 2 to 4, the front panel 2a of the sub-housing 2 is formed with a plurality of openings 2b for inserting and mounting the magazine 5, for example, at 10 positions. The openings 2b extend in the vertical direction and are arranged in a line in the horizontal direction.

As shown in FIGS. 5 (a) and 5 (b), the magazine 5 is a rectangular parallelepiped case 9 as a whole, and two kinds of three kinds each capable of carrying a disk 10 on its main surface, a total of six rectangular shapes. It has a plate-like tray A11 and a tray B12. Tray A11
The tray B12, and hence the disks 10, are sequentially arranged and stored at a predetermined pitch in the left-right direction (the arrow X direction and the opposite direction) so that the recording surface thereof is vertical, that is, the direction of gravity. The tray A11 and the tray B12 are rotatably provided around a rotation support shaft 9a provided at a corner portion of the case 9 so as to extend in the arrangement direction of the trays.
The case 9 can be housed so as to project along each main surface.

The configuration of the magazine 5 will be described in more detail.

The case 9 of the magazine 5 is provided with seven partition walls 9b, and the tray A11 and the tray B12 are arranged between the respective partition walls. As is clear from FIG. 6, small circular openings 9c are concentrically formed in the respective partition walls 9b in the vicinity of the rotation support shaft 9a. Openings 11a and 12a are also formed in the trays 11 and 12 so that they can face the openings 9c. Five spherical movable pieces 13a capable of moving along the arrangement direction of the partition walls 9b are fitted in the respective openings 9c, 11a and 12a. The diameter of each spherical movable piece 13a is equal to the arrangement pitch dimension of the trays 11 and 12 arranged alternately. The spherical movable pieces are urged toward each other by a pair of leaf springs 13b arranged at the end of the case 9.

As shown in FIG. 5B, a pressing lever 14 is provided at the end of the case 9 and is swingably attached to the case 9 via a pin 14a at one end thereof. The free end of the push lever 14 can smoothly engage with the free end of each tray 11 and 12. The spring member 14 is attached to the pressing lever 14.
b is engaged. The spring member 14b urges the pressing lever 14 in the counterclockwise direction in FIG. 5 (b), thereby applying a tray pressing force to the pressing lever.

As is clear from FIG. 5 (b), the tray 11 and
Reference numeral 12 is substantially the same shape, and the only difference is the shape and position of the claw portions 11b and 12b on which the listener puts his / her fingertips when pulling out the trays from the case 9.

As shown in FIGS. 2 to 4, a movable chassis 16 is provided in the sub-housing 2, and a guide shaft is provided.
The magazines 17 are guided by 17 in the horizontal direction. Playing means and disk moving means, which will be described later, are mounted on the movable chassis 16. As shown in FIG. 7, a boss 18 is fixedly provided on the lower portion of the front end of the movable chassis 16, and the boss is smoothly fitted on the guide shaft 17. A rail 19 is provided in the sub-housing 2 in parallel with the guide shaft 17, and a roller 20 provided at the lower rear end of the movable chassis 16 rolls on the rail 19. As shown in FIGS. 2, 3, and 7, a wire 22 is stretched in the sub-housing 2 in the moving direction of the movable chassis 16. As shown in FIG. 3, the wire 22 is attached to the sub-housing 2 by a hook 22a, is tensioned by a coil spring 22b at one end, and is wound around a pulley 22c near the coil spring. And is bent. A small pulley 23 is provided under the rear end of the movable chassis 16,
The wire 22 is wound around the small pulley. The small pulley 23 is rotationally driven by a motor 24 via a gear transmission mechanism 25, whereby the movable chassis 16 is guided by a guide shaft.
Move along 17 and rails 19.

The guide shaft 17, the boss 18, the rail 19 described above,
A roller 20, a wire 22, a hook 22a, a coil spring 22b, a pulley 22c, a small pulley 23, a motor 24,
The gear transmission mechanism 25 constitutes guide driving means for movably carrying and driving a movable chassis 16 supporting a performance means (described later) in the direction in which the magazines 5 are arranged.

Next, a locking means for locking each magazine 5 at the insertion position in the sub housing 2 and an ejecting means for releasing the magazine locking state by the locking means will be described. The engaging means is individually provided for each of the ten magazines 5.

As shown in FIGS. 4 and 5 (b), a concave portion 5a having a rectangular cross section is formed on the side surface of the case 9 of the magazine 5. As shown in FIGS. 4 and 7, the sub-housing 2
The front panel 2a has a bulge 2a formed inwardly of the housing. The bulge 2a of the case 9 of the magazine 5 engages at its free end on the bulge 2a. A locking claw member 27 that locks at the insertion position is swingably attached via a support pin 27a. Further, a spring member 27b is provided as an urging means for urging the locking claw member 27 to engage with the concave portion of the magazine 5. The locking claw member 27 is also shown in FIG.

As shown in FIGS. 2 to 4, a movable case 28 is provided in the sub-housing 2 and below the locking claw members 27, and the magazines 5 are arranged in a horizontal direction by the guide shaft 29a. Is being guided in. The movable case 28 has a load 30a on the free end of each locking claw member 27.
Solenoid plunger as an ejecting means for engaging with and disengaging the locking claw member from the magazine 5.
30 is installed. The boss 28a at the front end of the movable case 28
Is fixed, and the boss is smoothly fitted on the guide shaft 29. Also, at the rear end of the movable case 28, the roller 28
b is provided, and the roller rolls on the bottom surface of the sub-housing 2. Sub panel 2a of sub housing 2a
An elongated opening is formed in the lower part of the movable case 28 in the moving direction.
2c is formed, and a manual knob 29 connected to the movable case 28 projects to the outside from this elongated opening.

That is, the movable case 28, and thus the solenoid plunger 30, is configured to move by manually operating the manual knob 29.

As shown in FIGS. 3 and 4, ten block members 29e are provided in front of the movable case 28 along the moving direction of the movable case and corresponding to the locking claw members 27 described above. ing. As is apparent from FIG. 4, a spherical piece 28d and a coil spring 28e for urging the spherical piece 28d are provided at the front end of the movable case 28. The block member 29e is formed with a spherical concave portion to which the spherical piece 28d can be engaged, and the spherical plunger 28d and the spherical concave portion are engaged with each other, so that the solenoid plunger 30 is engaged with each locking claw member 27. Is accurately positioned at the engageable position of.

The above-mentioned manual knob 29, the block member 29e, and the spherical piece 2
8d and the coil spring 28e constitute an ejecting means manual positioning means for manually positioning the solenoid plunger 30, which is an ejecting means for ejecting the magazine 5, from the outside of the sub-housing 2.

As shown in FIGS. 4 and 7, in the vicinity of the locking claw member 27, a projecting plate 31 for projecting the magazine 5 inserted into the sub-housing 2 to the outside is arranged, and The front panel 2a is movably mounted on the overhanging portion 2d (shown in FIG. 4) in the front-rear direction (the arrow Y direction and the opposite direction). The protruding plate 31 is provided separately for each of the ten magazines 5 together with the locking claw member 27. A projecting portion 31a extending upward is formed at the rear end of the projecting plate 31, and the projecting plate 31 contacts the rear end of the magazine 5 at this projecting portion 31a. Further, the rack portion 31 is provided at the right end of the protruding plate 31.
b is formed, and the braking gear 32a of the damper 32 meshes with this rack portion. The damper 32 applies a braking force by viscous resistance of a viscous agent such as grease held therein. The projecting plate 31 is given a magazine projecting force by the coil spring 31c.

As shown in FIG. 4, a light emitting diode 35a and a lens 35b for focusing the light emitted from the light emitting diode are attached to the upper front end of the movable chassis 16 through a columnar longitudinal intermediate member 34. Also, as shown in FIGS. 1 to 3, an elongated opening 2e is formed in the upper portion of the front panel 2a of the sub-housing 2 along the moving direction of the movable chassis 16, that is, the direction in which the magazines 5 are arranged. Therefore, the light emitting diode 35a faces the opening, and the light emitted from the light emitting diode can be visually observed through the opening 2e. Further, the opening 2e is closed by the light transmitting member 2f, and there is no possibility that dust or the like will enter the sub housing 2 through the opening. In addition to the light emitting diode 35a, it is also possible to use a normal light bulb or liquid crystal as a display element.

As shown in FIGS. 2, 4, and 7, the movable chassis
The lower part of the front end of 16 is engaged with one of the trays 11 or 12 in the magazine 5 to attach each tray to the case 9 of the magazine 5.
An extruding member 41 that pushes out is provided. Extruding member 41
Is formed in an L shape and has two arc-shaped guide grooves 41a, 41b having different radii, and the arc-shaped guide grooves 41a, 41b are slidably mounted on a pair of pins 16a protruding from the movable chassis 16. Guided by engaging. That is, the pushing member 41 rotates about the center of curvature of each arc-shaped guide groove 41a, 41b,
The trays 11 and 12 are pushed by the claw portions at both ends thereof to be projected and stored in the case 9. In addition, extruded member
Virtual rotation center axis of 41 (center of curvature of each arcuate guide groove 41a, 41b) and rotation center axis of each tray 11 and 12 (Fig. 5 (a),
The rotation support shafts 9a) shown in (b) coincide. The trays 11 and 12 are pushed by the pushing member 91 in the vicinity of the rotation support shaft 9a.

As shown in FIGS. 2 and 7, the longitudinal moving member 43 is arranged in the vicinity of the pushing member 41, and the movable chassis 16 is reciprocally movable in the front-rear direction (the arrow Y direction and the opposite direction). It is installed. A long hole 43a extending in the vertical direction is formed at the front end of the moving member 43, and a pin 41c planted in the pushing member 41 is slidably engaged with the long hole 43a. A rack portion 43b is formed at a lower end portion of the moving member 43, and a gear transmission mechanism 44 including a pinion 44a meshing with the rack portion, a large pulley 45 integrated with a first stage gear of the gear transmission mechanism, and the large pulley. The moving member 43 is driven by a motor 48 via a small pulley 47 around which a belt 46 is wound.
Can be reciprocated. That is, the pushing member 41 is configured to be driven by the forward or reverse rotation of the motor 48. Incidentally, FIG. 2, FIG. 4 and FIG.
As shown in the figure, the movable chassis 16 has trays 11 and 1 which are projected and stored in the case 9 of the magazine 5.
A tray guide member 50 is provided which slides on the tray 2 and guides the tray. In addition, the tray guide member 50 and the tray 1
A pad 50a made of felt or the like is attached to the contact surface with 1,12.

The pushing member 41, the moving member 43, and the gear transmission mechanism 44 described above.
, Large pulley 45, belt 46, small pulley 47, motor
The disk 48 constitutes a disk moving means for moving the disk 10 between each magazine 5 and the playing means described later.

The above-mentioned movable chassis 16 is provided with a playing means for playing the disc 10 projected from each magazine 5, and each playing means includes a turntable, an optical pickup and a disc clamp mechanism which will be described later. Move in the horizontal direction. As shown in FIG. 2, the movable chassis 16 has four elevation views arranged in parallel in the horizontal direction.
It has 16c, 16d, 16e and 16f. Rightmost elevation 16
A spindle motor 53 for directly rotating the turntable 52 (see FIG. 3) is attached to c. Also,
This elevation view 16c is provided with an optical pickup (not shown) for reading the recorded information on the disc 10 and a pickup driving means (not shown) for moving the optical pickup along the recording surface of the disc 10. Has been.

A disc clamp mechanism is provided on the upright portions 16d and 16e. As shown in FIGS. 2 to 4 and FIGS. 7 to 8B, the disc clamp mechanism directs the disc 10 protruding from the magazine 5 toward the disc carrying surface of the turntable 52 (see FIG. 3). A disk-shaped pressing member 55 to be pressed by pressing, clamper plates 56 and 57 that rotatably support the pressing member on both front and back surfaces of the pressing member, and are formed in an arc shape and are in sliding contact with both clamper plates. And a clamper cam member 58 for driving both the clamper plates. One clamper plate 56 is swingably attached to the upright portion 16e via the support shaft 56a, and the other clamper plate 57 is swingably attached to the upright portion 16d via the support shaft 57a. The both clamper plates are in sliding contact with the outer peripheral portion of the pressing member 55 at the protrusions 56b, 57b formed at their free ends. The swinging of both clamper plates 56, 57 is carried out in a plane perpendicular to the disk carrying surface of the turntable 52.

The clamper cam member 58 has three elongated holes 58 along its arc.
a is formed, and the long holes slidably engage with the three support pins 60 that are planted in the upright portion 16d, so that the long radius can be rotated about the center of the bending radius. ing. The clamper cam member 58 has cam portions 58b and 58c around two of the above-mentioned three long holes 58a, and the protrusions 56d and 57d formed on the clamper plates 56 and 57 are formed on the cam surfaces of the respective cam portions. The sliding contact is smooth. Although not shown, a spring member is provided as a biasing means for biasing the clamper plates 56, 57 toward the clamper cam member 58. As is apparent from FIG. 7, the cam surface of the cam portion 58b of the clamper cam member 58 is formed by sequentially connecting three surfaces, that is, the middle surface, the low surface, and the high surface, and the cam surface of the cam portion 58c is sequentially arranged in the high position. The surface, the low-order surface, and the middle-order surface are formed continuously.

The above-mentioned both clamper plates 56 and 57 are referred to as a pressing member support mechanism. That is, the disc-shaped pressing member 55 is rotatably supported by the pressing member supporting mechanism and movably in the direction perpendicular to the disk carrying surface of the turntable 52 (shown in FIG. 3). Also,
The pressing member support mechanism, the pressing member 55 and the clamper cam member
The disk clamp mechanism is constituted by 58.

On the other hand, the upright portion 16 that holds the disc clamp mechanism described above.
Disc holding and mounting means for holding the disc 10 projecting outside the magazine 5 and mounting it on the turntable is attached to the other two upright portions 16c and 16f extending in parallel with d and 16e. The disc gripping and mounting means will be described below.

As shown in FIGS. 2, 7, and 9 (a) to 9 (c), the disc gripping and mounting means includes a rotary moving member 66 formed in an arc shape like the clamper cam member 58, and It has three gripping members 67, 68 and 69 which are driven by the rotation moving member to grip the disk 10 protruding outside the magazine 5. The gripping member 67 is a plate-like member whose disc gripping surface is formed to match the curvature of the outer circumference of the disc, and the remaining two gripping members 68 and 69 are both reduced in diameter at the tip thereof. It has a columnar shape that engages with the outer periphery of the disk 10 at its part. 9 (b) and (c)
As shown in, each gripping member 67, 68 and 69 (68 for 68
Has a disc-shaped soft flexible portion 67a, 68a integrally, and is supported by the upright portion 16f through the flexible portion, and each of the turntable 52 (shown in FIG. 3). It is movable in a direction parallel to the disk carrying surface and in a direction perpendicular to it.

As is particularly clear from FIG. 9, the rotation moving member 66 has three elongated holes 66a formed along the arc thereof, and
The long holes are slidably engaged with the three support pins 70 planted in 6c so that they can rotate about the center of the radius of curvature. A cam portion 66b is formed in the rotation moving member 66 in the vicinity of each of the three long holes 66a. Further, a cam groove 66c is formed in the rotation moving member 66 so as to be surrounded by the cam portion, and the above-mentioned gripping members 67, 68, 69 have their pin portions 67b, 68b and 69b formed in the cam groove 66c. It is slidably fitted to. Also, the respective pin portions 67
The head portions of b, 68b, 69b are in sliding contact with the cam surface of the cam portion 66b.
As is clear from FIGS. 7 and 9 (b) and (c), the cam surface of each cam portion 66b is formed by sequentially connecting the high-level surface, the low-level surface and the high-level surface. That is, the cam surface is formed so that each of the gripping members 67, 68, 69 reciprocates in a direction perpendicular to the disk carrying surface of the turntable at a predetermined timing by the rotation of the rotation moving member 66. is there. Further, the cam groove 66c is formed by the rotation moving member 6
The gripping members 67, 68, and 69 are formed so as to approach and separate from the outer circumference of the disk 10 at a predetermined timing as the 6 rotates.

As shown in FIGS. 2, 7 and 9 (a), the moving member 43 for rotating the pushing member 41 for pushing out the trays 11 and 12 of the magazine 5 has not only the lower end portion but also the upper end portion. Also, a rack portion 43c is formed, and the pinion 75 located near the rotation moving member 66 is meshed with the rack portion 43c. The pinion 75 meshes with the gear portion 76a of the gear cam 76. The gear cam has an overhanging portion 76b on the outer peripheral portion, and a long hole 76c formed in the overhanging portion slidably engages with a pin 71 planted in the rotation moving member 66. That is, the rotational movement member 66 is rotated by the movement of the movement member 43 by the rotation of the motor 48.

The rotation moving member 66 described above, a driving force applying means for applying a driving force to the rotation moving member 66 and a peripheral member related thereto, which is composed of a series of members from the motor 48 to the gear cam 76, and the peripheral members related thereto A gripping member driving means for moving each of the gripping members 67, 68 and 69 in a direction parallel to the disk carrying surface of the turntable 52 and a direction perpendicular thereto is constituted. Further, the gripping member driving means and the gripping members 67, 68, 69 carry the disk 10 projected outside the magazine 5, convey the disk 10 in the rotational axis direction of the turntable, and mount it on the turntable. Disk gripping and mounting means is configured.

As shown in FIG. 2, FIG. 4, FIG. 7 and FIG. 8 (b), an overhanging portion 58e is formed on the outer peripheral portion of the clamper cam member 58 formed in an arc shape. A shaft 58f extending horizontally is planted in the. On the other hand, an overhanging portion is formed on the outer peripheral portion of the above-mentioned rotation moving member 66 which is also formed in an arc shape.
66e is formed, and the shaft 58f is smoothly engaged with the U-shaped notch 66f formed in the projecting portion 66e.
That is, the rotary moving member 66 is configured to be given a rotary driving force by the above-mentioned gripping member driving means, and thereby the pressing member 55 can be moved. In this way, the pressing member 55 and the gripping members 67, 6 are driven by one driving source.
The drive source is reduced because of the configuration that drives both 8 and 69.

As shown in FIGS. 4, 7, and 10, each magazine 5
The plate-like detected members extending rearward are provided at the rear ends of the projecting plates 31 for projecting the outside of the sub-housing 2.
83 is integrally formed. As is clear from Fig. 10,
Light-shielding portions 83a and 83b are formed at the tip of the detected member 83. As shown in FIG. 11, the photocouplers 84a, 84b, 84 as three sensors are provided corresponding to the light shielding portions 83a, 83b.
c is arranged and is attached to the movable chassis 16 and moves together with the movable chassis. Since each member to be detected 83 is fixed to the projecting plate 31, it is not at a position detectable by the photocouplers 84a to 84c when the magazine 5 is not inserted into the sub housing 2.
It is in a non-detectable position in front of the detectable position.

As shown in FIG. 10, the light-shielding portions 83a and 83b of the detected member 83 are detected.
Are formed so as to be aligned along the moving direction of the movable chassis 16, that is, along the horizontal direction in which the magazines 5 are lined up, and to accommodate the storage positions of the disks 10 arranged in the mounted magazines 5. That is, each of the light shielding portions 83a and 8
Reference numeral 3b serves as a disc position indicator which indicates the position of each disc in the mounted magazine 5 with 3 bits, and the photocouplers 84a to 84c serve as disc mark detecting means for detecting this. Needless to say, the disc position marker and the disc marker detecting means are not limited to this configuration but various types can be applied. However, the disc position indicator is preferably an optical pattern.

Here, as shown in FIG. 11, the storage positions of the six discs in a certain magazine 5, that is, the positions of the trays 11 and 12 are set in order from the left to the right concave. Then, the detection signals obtained by the three photocouplers 84a to 84c are obtained as 001 for and are sequentially obtained as 010, 101, 011, 110, and 100 for. This detection signal is sent to the control unit (described later). In addition,
Since each detected member 83 is interlocked with the projecting plate 31 that reciprocates when the magazine 5 is attached or detached, it is a detection signal 001 indicating the storage position of the first disc in the magazine 5, for example.
In particular, can be used as a magazine presence / absence detection signal for knowing whether or not the magazine 5 is mounted.

FIG. 12 shows a modification of the detected member 83 described above. As shown in FIG. 12, the detected member 83 having light-shielding portions 83a and 83b.
In addition, a slit 83c is formed corresponding to the intermediate position of each disc storage position in the magazine 5. As shown in FIG. 13, two photo couplers 87a are provided corresponding to the slits 83c.
And 87b are arranged, and another photocoupler 84a is arranged.
It is attached to the movable chassis 16 together with No. 84c. That is, when the optical axis centers of the two photocouplers 87a and 87b respectively coincide with the slit 83c, the position of the disc is determined, and by this, the storage position of the disc can be searched with high accuracy.

As shown in FIGS. 4 and 14, ten magazine number marking plates 91 to 91 for detecting the numbers of the respective magazines 5 are provided below the detected member 83 for detecting the disk storage position.
100 are provided. Each magazine number marking plate 91
~ 100 is a light passage hole that indicates the number of each magazine by 4 bits 9
Each of the sub housings 1a to 100a is fixed to the sub housing 2. Four photocouplers 101a to 101d are provided as magazine number detecting means for detecting the magazine number by each of the magazine number marking plates, and are attached to the movable chassis 16.

In this embodiment, circular light passage holes 91a to 100a are formed in the magazine number marking plates 91 to 100, but they may be slits.

The above-mentioned photocouplers 84a to 84c and the detected member 83
By using the photo couplers 101a to 101d and the magazine number indicator plates 91 to 100, it is detected that the movable chassis 16 supporting the above-mentioned playing means has reached a position corresponding to the selected storage position of the disk 10. Playing means position detecting means for stopping the movable chassis is configured. Further, the guide driving means for moving the movable chassis 16 and the playing means position detecting means constitute a positioning means for positioning the playing means in the direction in which the magazines 5 are arranged.

Next, the operation of the magazine disc player having the above-mentioned configuration will be briefly described in accordance with the operation procedure with reference to FIGS. 15 to 19 (c).

First, when a disc to be played is designated by operating the operation unit 3 shown in FIGS. 1 and 15, a drive voltage is supplied to the motor 24 by the CPU (control unit) shown in FIG. The movable chassis 16 having the playing means starts to move to the left (forward) or right (backward). And
As shown in FIG. 16, first, the magazine number to which the designated disc belongs is searched by the magazine number indicator plates 91 to 100 and the photocouplers 101a to 101d shown in FIG. The movable chassis 16 is moved to the desired position. Next, the detected member 83 and the photocouplers 84a to 84c shown in FIGS. 10 and 11 are shown.
The position of the target disc is detected by, the position of the movable chassis 16 is finely adjusted to correspond to this, and the pushing member 41 provided on the movable chassis is connected to the tray 11 or 12 carrying the disc 10 to be played. Reach the engagement position.

In this way, when the pushing member 41 reaches the engagement position with the tray carrying the disk 10 to be played, the motor 48 is rotated and the pushing member 41 is rotated via the moving member 43. Therefore, as shown in FIGS. 5 (b) and 7,
A tray (for example, tray B12) carrying the disk 10 to be played protrudes from the case 9 of the magazine 5, and the disk 10 is held against the disk carrying surface 52a of the turntable 52 as shown in FIGS. 17 (a) and 17 (b). Move to a concentric position, that is, right beside the disk carrying surface.

Subsequent to the disk ejecting operation by the operation of the moving member 43, the further movement of the moving member causes the clamper cam member 58 and the rotation moving member 66 to rotate, respectively.
After the tray 12 is pushed out of the magazine 5, the engagement state between the pushing member 41 and the moving member 43 is released by a release mechanism (not shown).

The rotation of the rotary moving member 66 causes the cam portion of the rotary moving member to act, and as shown in FIGS. 18 (a), (b), 19 (a) and (b), the gripping members 67, 68 are shown. And 69 grip the disc and mount it on the disc-bearing surface of the turntable 52. At the same time, the action of the cam portion of the clamper cam member 58 causes the pressing member 55 to clamp. After this, the gripping members 67, 68, 69 are separated from the disc 10.

Thus, the performance becomes possible, and the turntable 52 and the optical pickup (not shown) operate to start the performance.

When the performance is completed, the disc 10 is stored in the magazine 5. However, this disc storing operation is performed only in the reverse process of the above-mentioned disc loading operation, and will not be described in detail. Thereafter, the above operation is repeated according to the designated number of songs.

The ejecting of the magazine 5 to the outside of the player is performed by pressing the eject button included in the operation unit 3 shown in FIG. 1 to operate the solenoid plunger 30. At this time, the solenoid plunger 30 is moved so as to correspond to the magazine to be ejected by operating the manual knob 29 shown in FIG.

As described in detail above, in the magazine disc player according to the present invention, a mounting portion capable of holding a plurality of magazines each capable of accommodating a plurality of discs and guiding the playing means in the direction in which the respective magazines are arranged. And positioning means for positioning and disk moving means for moving the disk between the magazine and the playing means, the positioning means confirming that the playing means has reached a position corresponding to the selected disk storage position. There is a performance means position detection means for detecting and stopping the calculation means, the performance means position detection means comprising a magazine number mark provided corresponding to each mounting position of the magazine, and the magazine number mark. Are arranged side by side and are arranged in order along the moving direction of the playing means and corresponding to the storage positions of the disks in the magazine. And a disc number detecting means for detecting the magazine number indicator, and a disc indicator detecting means for detecting the disc position indicator group.

In this way, a plurality of magazines are arranged side by side and the playing means is moved in the direction in which they are arranged, so that selective automatic performance of many discs can be achieved, and discs should be exchanged when they are exchanged. The operability is good because only the magazine that contains the disks needs to be attached and detached.

Further, in the magazine disc player according to the present invention, the magazine number detecting means detects the magazine number marker, and the calculating means is positioned in the vicinity of the magazine in accordance with the detection signal, and thereafter, each of the magazines in the magazine is detected. Since the disk position indicator group indicating the disk storage position is detected by the disk mark detecting means and the position of the playing means is finely adjusted according to the detection signal to correspond to the disk to be played, the selected disk is selected. It is possible to position the playing means with high accuracy at a position corresponding to.

On the other hand, as another configuration for driving and positioning the playing means so as to correspond to the selected disc, an absolute address indicating the storage positions of all the discs stored in each magazine by a plurality of bits A code group and a code reading means for reading the absolute address code group are conceivable. Specifically, they extend along the moving direction of the playing means and over all the storage positions of the discs. An address plate is provided to form an absolute address code group consisting of a plurality of bit slit groups, and a sensor consisting of a plurality of photocouplers corresponding to each slit group is attached to the playing means as the code reading means and together with the playing means. It is conceivable that it is configured to move. However, in such a configuration, it is necessary to form the slit group of the address plate with extremely high precision, which is expensive, and a large storage capacity of the control circuit is also required, resulting in an increase in cost.

In the magazine disc player according to the present invention, since the playing means is positioned to correspond to the desired disc by the above-mentioned construction, the cost is reduced without the need for such expensive members and large-capacity storage means. .

Further, in the magazine disc player according to the present invention, the magazine number detecting means and the disc indicator, which are provided for each magazine as described above, or the disc position indicator groups, are inserted together with the corresponding magazines. By moving from the position that cannot be detected by the detection means to the position that can be detected, this makes it possible to determine whether the performance means corresponds to the mounting position of the magazine as soon as the magazine containing the disc to be played is mounted. You can know before moving to. Therefore, it is possible to prevent waste of time due to moving the playing means to that position despite the fact that the magazine is not mounted, and the operator is freed from unnecessary operations, further improving operability. It is good. Further, as described above, the presence or absence of the magazine is detected by using the magazine number indicator indicating the magazine number or the disc position indicator group indicating the storage position of the disc as a detected object for knowing the presence or absence of the magazine. As a result, the number of parts is greatly reduced as compared with the configuration in which the detected object is provided separately, and the player as a whole can be easily downsized.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire magazine disc player as an embodiment of the present invention, and FIGS. 2 and 3 are main parts of the magazine disc player shown in FIG. A front view and a plan view each including a partial cross section of the built-in sub-housing, FIG. 4 is a view taken along the line IV-IV of FIG. 2, and FIGS. 5 (a) to 6 are detailed views of the magazine and FIG. FIGS. 1 to 14 are diagrams showing details of the internal structure provided in the sub-housing shown in FIGS. 1 to 4, and FIG. 15 is a control of the magazine disc player shown in FIGS. 1 to 14. A block diagram of the system, FIGS. 16 to 19 (b) is a diagram for explaining the operation of the magazine disc player. Explanation of symbols of main parts 1 …… Main housing 2 …… Sub housing 2e …… Opening 2f …… Light transmitting member 3 …… Operating section 5 …… Magazine 9 …… Case 10 …… Disk 11,12 …… Tray 16 …… Movable chassis 17 …… Guide shaft 19 …… Rail 22 …… Wire 24,48 …… Motor 25,44 …… Gear transmission mechanism 27 …… Locking pawl member 29 …… Dial 30 …… Solenoid plunger 31… … Projection plate 35 …… Light emitting diode 41 …… Extrusion member 43 …… Movement member 50 …… Tray guide member 52 …… Turn table 53 …… Spindle motor 55 …… Pressing member 56,57 …… Clamper plate 58 …… Clamper cam Member 58b, 66b ...... Cam part 66 ...... Rotary moving member 67,68,69 ...... Grip member 84a, 84b, 84c, 87a, 87b, 101a, 101b, 101c, 101d ...... Photo coupler

Claims (4)

[Claims] 1. A mounting portion capable of holding a plurality of magazines each capable of accommodating and storing a plurality of discs, positioning means for positioning a playing means in a direction in which the magazines are arranged, and a disc between the magazine and the playing means. And a disc moving means for moving the disc. The positioning means detects the fact that the playing means has reached a position corresponding to the storage position of the selected disc and stops the playing means by detecting the playing means. The playing means position detecting means is provided alongside the magazine number marker provided corresponding to each mounting position of the magazine, and the magazine number marker is provided along the moving direction of the playing means. In addition, a group of disc position markers sequentially arranged corresponding to the storage positions of the respective discs in the magazine and the magazine number mark are detected. Gajin number detecting means and the magazine disk player characterized by comprising a disk label detecting means for detecting the disc position indicator group. 2. The at least one of the magazine number detecting means and the disc mark detecting means comprises a single sensor attached to the playing means.
The described magazine disc player. 3. The magazine disc player according to claim 1 or 2, wherein at least one of the magazine number mark and the disc position mark group comprises an optical pattern. 4. The magazine disc player according to claim 2, wherein the sensor comprises a plurality of photocouplers.