JPH0721921B2 - Multi-disc player - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player, and more particularly to a multi-disc player capable of accommodating a plurality of discs and sequentially selecting any of the discs contained therein for continuous performance.

BACKGROUND ART A jukebox is generally known as a disc player capable of continuously playing a plurality of discs.
However, the conventional jukebox itself is so large that it is not suitable for home use.

In recent years, it has been called a digital audio disc (hereinafter abbreviated as DAD), and by recording a digital signal, it is possible to increase the amount of information to be stored and to reproduce it as compared with a conventional analog audio disc that has a signal. Several types of discs have been developed and are widely used, which generate less noise. Among them, especially a method of recording and reading a signal by using a laser beam, a disk generally called a compact disk having an outer diameter of about 12 cm is easy to handle and enables downsizing of the entire disk player. Is. Recently, a multi-disc player has been developed, which is suitable as a home jukebox that can store multiple small DADs at all times and can play them continuously. By the way, a small DAD can hold about 1 hour of playing time, and can store about 1.5 times as much information as a conventional analog audio disc. Therefore, for example, three discs can accommodate about 60 songs if the playing time is about 3 minutes, and it is easy to cover favorite songs by genre such as jazz or enka.

A multi-disc player is basically a playing means including a turntable, a pickup, etc., a magazine that accommodates a plurality of discs in order at a predetermined pitch, and is detachably attached to a predetermined attachment portion in a player housing.
A disc transport mechanism for sequentially selecting arbitrary discs in the magazine and transporting the discs onto the disc-carrying face of the turntable, and returning the discs from the disc-carrying face into the magazine, and a disc transported on the turntable. And a clamping mechanism for clamping. More specifically, the clamp mechanism includes a disc-shaped pressing member that abuts on a surface of a disc to be played, which is opposite to the turntable, and that cooperates with the turntable to perform a disc clamping action, and the pressing member. And a support arm that rotatably supports it. The support arm has a clamp position (in order to avoid contact between the disk being conveyed by the disk transfer mechanism and the pressing member, and contact between the disk and the support arm itself, that is, the support position of the support arm. The pressing member moves appropriately between a position where the pressing member can abut the disk on the turntable) and a non-clamping position.

In the already developed multi-disc player,
The support arm is largely moved in a direction substantially perpendicular to the disk carrying surface of the turntable. Therefore, it is not always easy to reduce the size of the entire disc player in the height direction (the direction perpendicular to the disc carrying surface of the turntable) in order to secure the space required for the movement of the support arm.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to reduce the size of a disc player as a whole, particularly to reduce the size in the height direction, and to perform a disc clamping operation. It is to provide a multi-disc player that can be smoothly operated.

A multi-disc player according to the present invention comprises a magazine for sequentially storing a plurality of discs, an arbitrary disc in the magazine is sequentially selected, and the disc is carried on a disc-carrying surface of a turntable. A disc transport mechanism that returns the disc inside,
A clamp mechanism for clamping the disc conveyed on the turntable, the clamp mechanism abutting against a surface of the disc to be played opposite to the turntable, cooperating with the turntable and magnetic force of the magnet. And a supporting arm for rotatably supporting the pressing member rotatably between the clamp position and the non-clamping position with respect to the turntable. It is characterized in that the magnetic member is rotated along a plane parallel to the disk carrying surface of the table, and the magnetic member is arranged in the vicinity of the passage portion of the pressing member.

Embodiment Hereinafter, a multi-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 multi-disc player. The multi-disc player is mounted on a vehicle and is attached to the dashboard or console box of the automobile.

As shown in FIG. 1, the front panel 3 of the housing 2 is provided with a rectangular magazine insertion opening 3a for inserting the magazine 5 into a predetermined mounting portion provided in the housing. This magazine insertion slot 3a extends in the left-right direction. However, the arrow X direction is to the left. The arrow Y indicates the front and the arrow Z indicates the upper side. The magazine insertion slot 3a is closed by the lid 6 swingably attached to the front panel 3 swinging in the arrow F direction. On the front panel 3, there are also groups of operation buttons 7 and 8 for operating the multi-disc player.
And 10, and a display unit 11 are provided. Each of these operation button groups 7 to 10 and the display unit 11 is a front panel 3
Are collectively arranged on the left side of the vehicle so that the driver of the automobile can easily operate them.

As shown in FIGS. 2 (a) to 2 (f), the magazine 5 has a flat rectangular parallelepiped shape as a whole, and two rectangular plate-shaped disk carrying units formed in exactly the same shape and stacked on each other. It has a top plate 14 and a bottom plate 15, which are formed to have the same outer diameter dimension as that of each of the disk carrying units. Each disk carrying unit 13, upper plate
The bottom plate 15 and the bottom plate 15 are connected to each other by a plurality of studs 16a and a screw 16b that is screwed into a female screw portion formed at the tip of each stud. The bottom plate 15 is formed in substantially the same shape as the disc carrying unit 13 except for the lower surface part thereof. Each disk carrier unit 13 and the bottom plate 15 respectively carry a disk 17 so as to be movable along the main surface of the disk.
Therefore, the number of disks 17 that can be stored in the magazine 5 is three. It should be noted that when the magazine 5 is mounted in a predetermined mounting portion in the housing 2, the array direction of these disks coincides with the vertical direction (the arrow Z direction and the opposite direction).

As shown in FIGS. 1 and 2 (b), the magazine 5
On the front surface of the label, a label 20 indicating the title of the music recorded on the disc stored in the magazine is attached.

As shown in FIG. 3, a plate-like projecting arm 21 made of a steel plate is provided in the disk carrying unit 13 and in the vicinity of the deepest part thereof, and the disk carrying unit 13 is swingable by a pin 21a. Is attached to. This projecting arm 21 engages with the outer peripheral portion of the disc 17 at one end of the swing arm, in this case, the front end, so that the disc is placed outside the disc carrying unit, that is, outside the magazine 5 along the main surface of the disc. It acts as a projecting mechanism for projecting to.
The protruding arm 21 is an arcuate portion extending along the outer periphery of the disk 17.
21b and a linear portion 21c continuous with the arcuate portion. A resin-made disc engaging member 22 that is separate from the main body of the protruding arm is attached to the tip of the linear portion 21c. As is particularly apparent from FIG. 4, the tip of the disc engaging member is A groove 22a capable of holding the main surface of the disk 17 is formed therein.

As shown in FIG. 3 and FIG. 5, a taper portion 13a is formed at the left end portion of the disc carrying unit 13, that is, the end portion in the direction in which the disc 17 protrudes.
The 7's can be stored in the magazine 5 smoothly.

A holding arm 24 is provided so as to rotate about a stud 16a located in the vicinity of a pin 21a which is a swing support shaft of the protruding arm 21. The holding arm 24 is for engaging the outer peripheral portion of the disc 17 at one end portion of its rotation, in this case, the left end portion, and biasing the disc 17 toward the storage position in the disc carrying unit 13. However, the holding arm 24
A roller 24a is attached to the engaging portion with the outer peripheral portion of the disc. A coil spring 25 as an urging force applying means for applying a disk urging force to the holding arm 24 is connected to the other end of the rotation of the holding arm 24, that is, the right end. One end of the coil spring 25 is connected to the stud 16a. These holding arms 24 and coil springs 25
Thus, a holding mechanism for holding the disk 17 at the storage position in the disk carrying unit 13 is configured.

At the rear end of the disk carrying unit 13, the left-right direction (arrow X
The trigger lever 26 is disposed so as to extend in the direction (and the opposite direction) and is reciprocally movable in the left-right direction. The trigger lever 26 is for actuating the above-mentioned holding mechanism (holding arm 24 etc.) and the projecting arm 21 from the outside of the magazine 5, and the left end portion 26a of the trigger lever is outside the disk carrying unit 13. Exposed. The trigger lever 26 is connected to the swinging other end portion, that is, the rear end portion of the projecting arm 21 via the intermediate lever 27a and the pins 27b and 27c, and the projecting arm 21 swings according to the reciprocating motion of the trigger lever 26. . Further, the holding arm 24 is moved forward (moved in the direction opposite to the arrow X) together with the trigger lever 26 such that the intermediate lever 27a is a part of the other end of the rotation of the holding arm.
By engaging with 4b, it rotates counterclockwise in FIG. 3, thereby releasing the disc urging state by the holding arm. As is apparent from FIG. 3, the trigger lever 26 is biased to one side in the projecting and storing direction of the disc 17 with respect to the disc carrying unit 13, and thus the magazine 5 (see FIG. 1, etc.), in this case, the rear side. Is provided. Further, a coil spring 29 for applying a biasing force to the trigger lever and the projecting arm 21 is connected to the trigger lever 26.

The disk carrying unit 13 carries the main surface of the disk 17, but as shown in FIGS. 3 and 6, the disk carrying unit 13 has a left-right direction (arrow X
Direction and the opposite direction) disk-carrying protrusions 13c,
13d and 13e are provided so as to project, and the disk 17 is adapted to be supported on its outer peripheral portion by the respective disk carrying projections.

In addition, as in the case of each disk carrying unit 13, the above-mentioned protruding arm is also provided in the bottom plate 15 carrying the lowest disk 17.
21, members such as a holding arm 24, coil springs 25 and 29, and a trigger lever 26 are provided.

As shown in FIG. 1, in the lower portion of the housing 2, two substantially rectangular plate-shaped chassis 32 and 33 are arranged in the left-right direction (arrow X
Direction and the opposite direction).

As shown in FIGS. 7 to 9, two guides extending in the front-rear direction (the arrow Y direction and the opposite direction) are provided on both left and right sides of the chassis 33 arranged on the right side in the housing 2. Shafts 34 and 35 are provided. Between the two guide shafts 34 and 35, a substantially rectangular carrier plate 37 that directly carries the magazine 5 inserted from the magazine insertion port 3a (first shown) is arranged. The right end of the carrier plate 37 is slidably attached to the right guide shaft 35 via a slider 38 made of resin. The slider 38 is smoothly fitted to the guide shaft 35 by U-shaped grooves 38a formed at the front and rear ends thereof. Further, the left end portion of the carrier plate 37 is slidably attached to the left guide shaft 34 via a pair of front and rear boss members 39. These carrying plates 37, sliders
The magazine carrying portion is constituted by the 38 and the boss member 39. A moving member 41 made of resin is slidably attached at both front and rear ends of the guide shaft 34 that supports the left end of the carrying plate 37. As is particularly clear from FIG. 9, a protrusion 41a protruding upward is formed at the center of the moving member 41, and the protrusion 41a has a slit 41b in the left-right direction (the arrow X direction and the opposite direction). Are formed. A leaf spring 42 attached to the lower surface of the carrier plate 37 is fitted in the slit 41b. That is, the carrier plate 37
The moving member 41 is elastically coupled. As shown in FIG. 7, a rack portion 41d is formed on the right surface of the moving member 41 over substantially the entire length of the moving member. The rack portion 41d has a gear 44 provided on the chassis 37.
Are in mesh. The gear 44 is a double gear 45 in which a small gear part meshing with the gear and a worm wheel are integrally formed.
A worm 46 that meshes with the worm wheel, a large pulley 47 formed integrally with the worm, and a belt 48,
It is connected to the output shaft of the motor 50 via the small pulley 49. The gear 44, the double gear 45, the worm 46, the large pulley 47, the belt 48, the small pulley 49, and the motor 50 constitute a driving unit that drives the moving member 41. Also,
The driving means, the moving member 41, the magazine carrying portion composed of the carrying plate 37 and the like, and the peripheral small members associated therewith, allow the magazine 5 to be mounted in a predetermined mounting portion in the housing 2.
A magazine attaching / detaching mechanism for mounting and ejecting (see FIG. 1 etc.) is configured.

As shown in FIG. 7, a carrier plate 37 that directly carries the magazine 5 inserted from the magazine insertion port 3a (shown in FIG. 1).
For example, four circular magazine guide members 53 are attached on the magazine carrying surface of the. On the other hand, FIG. 2 (f)
As shown in FIG. 2, the bottom surface of the bottom plate 15 of the magazine 5 has two guide grooves 15 that can be smoothly engaged with the magazine guide member 53.
a is formed. The magazine 5 inserted from the magazine insertion port 3a is accurately guided and positioned on the carrier plate 37 by the action of the magazine guide member 53 and the guide groove 15a. Further, when the magazine 5 is inserted upside down from the magazine insertion port 3a, the rear edge of the upper plate 14 of the magazine 5 contacts the magazine guide member 53, and the insertion of the magazine 5 becomes impossible. That is, the reverse insertion of the magazine 5 is prevented.

As shown in FIG. 7 and FIG. 8, the left front end portion of the carrier plate 37 is brought into contact with the lower surface of the magazine 5 to hold the magazine.
A lateral roller 55 is provided on the 37 for smooth guidance. A pair of vertical rollers 56 for guiding the magazine 5 onto the carrier plate 37 is also provided at the right end of the carrier plate 37 so as to be spaced apart in the front-rear direction. Further, a guide plate 57 that guides the magazine 5 and that restricts the upward separation of the magazine 5 from the carrying plate 37 is disposed at a position sandwiched by the vertical rollers 56.

As shown in FIGS. 7 and 8, the lower surface of the right side portion of the carrier plate 37 is slidably movable within a predetermined range in the moving direction of the carrier plate, that is, the front-back direction (the arrow Y direction and the opposite direction). Plate 58 is attached. Specifically, the slide plate 58 is formed with three elongated holes 58a extending in the front-rear direction, and three pins 37a projecting from the lower surface of the carrier plate 37 are slidably fitted in the elongated holes. They are in agreement. A coil spring 59 for urging the slide plate 58 forward is connected to the slide plate 58. A leaf spring 60 whose tip is bent in a dogleg shape is attached to the rear end of the slide plate 58.
As shown in the figure, the leaf spring 60 can engage with the notch 13g formed at the right rear end of each disk carrying unit 13 constituting the magazine 5. In this way, the leaf spring 60 is engaged with the cutout portion 13g, whereby the carrying plate 37 of the magazine 5 is
The departure from the front (in the direction of the arrow Y) is restricted.

As shown in FIGS. 7 and 8, a slide plate
A rectangular resin plate 62 is attached to the lower surface of the right end portion of 58, and two detection switches 63 and 64 are arranged so that the plate and its actuator can engage with each other. Both detection switches 63 and 64 are attached to the chassis 33. Further, as shown in FIG. 7, the detection switch 65 is fixedly mounted on the upper surface of the left rear end portion of the chassis 33, and the rear end portion of the moving member 41 can engage with the operator of this detection switch. .

As shown in FIGS. 7 and 8, three photosensors 67, 68, and 69 are provided on the upper surface of the right end portion of the carrier plate 37 side by side in an example in the up-down direction (the arrow Z direction and the opposite direction). ing. Each of these photo sensors 67 to 69 is
This is for detecting the movement of the right end surface 24d of the holding arm 24 shown in FIG. As shown in FIG. 3, the right end surface 24d of the holding arm 24 has openings 13i and 15c (see FIG. 2 (c)) formed in each disk carrying unit 13 and the bottom plate 15 (see FIG. 2 (c)).
Exposed to the outside of 15. Photo sensor 67 to 69
Uses the right end surface of the holding arm 24 as a reflection plate to detect the movement of the right end surface. Each of the photosensors 67, 68 and 69 and the holding arm 24 as a detected object constitutes a disk presence / absence detecting means for detecting the presence / absence of each disk in the magazine 5.

As shown in FIGS. 10, 11 and 13, a sub-chassis 75 in the form of a rectangular plate, which is slightly smaller than the chassis, is fixed on the chassis 32 arranged on the left side in the housing 2. . As shown in FIG. 12 in part, a rectangular frame-shaped support member 77 is attached to the lower surface of the sub-chassis 75 via a plurality of vibration damping members 76 made of rubber or the like. The support member 77 includes a turntable 79 and a carriage 80.
Is installed. Carriage 80 is objective lens 81
The optical pickup means including the above is internally mounted, and is movable along a plane parallel to the disc carrying surface 79a of the turntable 79. Further, on the supporting member 77, a carriage 80 including a motor 82 and the like is provided.
Carriage drive means for driving is provided.

The above-mentioned carriage driving means, the turntable 79,
The carriage 80 including the optical pickup means and the peripheral members related to them constitute a playing means for playing a disk.

As shown in FIG. 11, FIG. 12, FIG. 14 and FIG. 15, a rectangular plate-shaped disk carrying portion 85 made of a steel plate is arranged at a position sandwiching the chassis 32 and the sub-chassis 75. However, the chassis 32 is not shown in FIG. The disk carrying portion 85 carries the disks 17 protruding from the magazine 5 (see FIG. 1, etc.), and is arranged in the direction in which the disks are arranged in the magazine, that is, the vertical direction (the arrow Z direction and the opposite direction). It is freely movable in. Further, as shown in FIGS. 11 and 14, on the disc carrying portion 85, the disc 17 protruding from the magazine 5 is slidably contacted at the lower surface to guide the disc onto the disc carrying portion 85. A rectangular plate-shaped disc guide member 86 is arranged, and is swingably attached to the disc carrying portion 85 at the left end thereof via a pin 87. Further, as shown in FIG. 15, a roller 88 is provided at the right end of the disc carrying portion 85 so as to contact the lower surface of the disc 17 and guide the disc. The disc guide member 86 is swung in a plane including the vertical direction (the arrow Z direction and the opposite direction). FIG. 17 shows details of the disc guide member 86.

As shown in FIGS. 11 and 14, the disc carrier 85
Is supported by a pair of support mechanisms 89 and 90 on the front side and the rear side of the disk carrier. The pair of support mechanisms 89, 90 move the disk carrying portion 85 in a direction perpendicular to the disk carrying surface 79a of the turntable 79 (see FIG. 13, etc.), that is, in the vertical direction (the arrow Z direction and the opposite direction). The disk carrying portion 85 is supported freely so that the disk carrying surface of the disk carrying portion is always parallel to the disk carrying surface 79a of the turntable 79. As shown in FIG. 11, the support mechanism 89 for supporting the front side portion of the disk carrying portion 85 is composed of two support levers 89b and 89c which intersect with each other and are pivotally attached by a pin 89a at the intersection. One supporting lever 89b is pivotally attached to the chassis 32 by a pin 89d at one end thereof. Further, a pin 89e is also provided at the other end of the support lever 89b, and the pin 89e is formed in a long hole 85a formed by extending in the left-right direction (the arrow X direction and the opposite direction) of the disk carrying portion 85.
Is slidably fitted. The other supporting lever 89c is pivotally attached to the disc carrying portion 85 by a pin 89f at one end thereof. Further, a pin 89g is provided to project from the other end of the support lever 89c, and the pin is slidably fitted in an elongated hole 32a formed by extending the chassis 32 in the left-right direction.

As shown in FIG. 14, the support mechanism 90 for supporting the rear side of the disk carrying portion 85 includes two support levers 90b and 90 which intersect each other and are pivotally mounted by a pin 90a at the intersection.
Composed of c. One end of the support lever 90b is pivotally attached to the chassis 32 by a pin 90d, and the other end of the support lever 90b is provided with a pin 90b.
e is slidably fitted in a long hole 85b formed by extending in the left-right direction in the disk carrying portion 85. Further, the other support lever 90c is pivotally attached to the disc carrying portion 85 by a pin 90f at one end thereof. Further, a pin 90g is also provided at the other end of the support lever 90c so as to slide in a long hole 32b formed by extending in the left-right direction (arrow X direction and the opposite direction) of the chassis 32. It fits freely.

The support lever 89c and the support lever 90c, which are the respective constituent members of the two support mechanisms 89 and 90, are connected by an intermediate member (not shown), and the movements of the two support mechanisms are synchronized. This intermediate member is used for each support lever 89c,
The right end portion of 90c, that is, the pin 89f and the pin 90f, is interposed between the respective vicinities.

As shown in FIG. 12, the right end of the chassis 32 is provided with two drive levers 94 and 95 which intersect with each other and are connected to each other by a pin 93 so as to be rotatable relative to each other. There is. A pin 94a is projectingly provided on one end portion of one drive lever 94, in this case, a lower end portion thereof, and is formed in a long hole 32d formed in the chassis 32 by extending in the front-rear direction (the arrow Y direction and the opposite direction). This pin 94a is slidably fitted.
A resin roller 94b is attached to the other end of the drive lever 94, and the roller is the above-mentioned intermediate member (support mechanism).
(Provided to interlock 89 and 90: not shown)
Can abut the lower surface of the. One end (lower end) of the other drive lever 95 is pivotally attached to the chassis 32 by a pin 95a. A roller 95b is also provided at the other end of the drive lever 95, and the roller can also contact the intermediate member. That is, the pin 94a protruding from the one drive lever 94 is attached to the long hole 32d.
By moving the drive levers 94 and 95 upwards by moving them backward (in the direction opposite to the arrow Y), the intermediate member (not shown), and hence the disk carrying portion 85, moves upwards. It is designed to do so.

As shown in FIGS. 10 and 12, a guide shaft 98 is provided on the right side of the chassis 32 so as to extend in the front-rear direction, and a movable body 99 is slidably attached to the guide shaft. ing. At the front end of the moving body 99, the drive lever
A protrusion 99a that can be engaged with the front edge of a pin 94a that is provided so as to protrude from 94 is formed. A rack portion 99b is formed on the upper surface of the moving body 99 over substantially the entire length of the moving body.
00 meshes. The gear 100 includes a gear 101 and a gear 101.
A worm wheel 102 formed integrally with the worm wheel, a worm 103 meshing with the worm wheel, a gear 104 integrally formed with the worm, a gear 105 meshing with the gear 104, and a gear 1
The output shaft of the motor 108 is connected via a gear 106 integrally formed with the gear 05 and a gear 107 meshing with the gear 106.

The above-mentioned drive levers 94, 95, pins 93, guide shafts 98, moving bodies 99, and gears 100, 101, 104, 105, 106, 107.
, Worm wheel 102, worm 103, motor 10
8 and the peripheral small members related thereto are provided for interlocking the above-mentioned intermediate member (two support mechanisms 89 and 90 provided to support both front and rear sides of the disk carrying portion 85: FIG. A driving force applying means for applying a driving force to a disk carrying portion 85 by applying a driving force to a disk drive (not shown) is configured. Further, the drive force applying means, the intermediate member (not shown), the support mechanisms 89 and 90, and the disk carrying portion 85 turn the disk 17 protruding from the magazine 5 (see FIG. 1) into a turntable. The disk moving means is configured to move the disk 79 in a direction perpendicular to the disk carrying surface 79a (see FIGS. 10 and 13), that is, in the vertical direction (the arrow Z direction and the opposite direction).

Next, description will be given of a disk projecting / storing means for projecting the disk 17 into the magazine 5 and storing the projected disk 17 in the magazine 5.

As shown in FIGS. 14 and 15, the disc carrier 85
An operating rod 112 made of round steel is arranged on the upper surface of the rear end portion so as to extend in the left-right direction (the arrow X direction and the opposite direction), and is reciprocally movable in the extending direction via the bearing members 113 and 114. It is attached to the disk carrier 85. This actuating rod 112 is moved forward (moving to the right = counter arrow X direction) and the trigger lever in the magazine 5 is moved.
A member for pushing the left end portion 26a of 26 to operate the trigger lever. A movable piece 115 is attached to a substantially central portion of the operating rod 112 so as to be movable within a predetermined range (about 3 mm) along the operating rod. A stopper 116 is fixed near the movable piece 115 at the center of the operating rod 112, and a coil spring 117 is contracted between the stopper and the movable piece 115. A coil spring 118 is connected to the left end of the movable piece 115 to urge the operating rod 112 together with the movable piece in the returning direction of the operating rod (leftward = arrow X direction).

On the disc carrying portion 85 and in the vicinity of the operating rod 112, the outer peripheral portion of the disc 17 is pressed by the free end to push the disc out of the disc carrying portion 85, and the magazine 5
(See FIG. 1 and the like) A push-out arm 121 for accommodating inside is mounted swingably around the pin 122 and along the disk carrying surface of the disk carrying portion. In FIG. 15, the position of the pushing arm 121 shown by the chain double-dashed line is called the pushing position (which pushes out the disk 17), and the position of the pushing arm 121 shown by the solid line is called the non- pushing position. The push-out arm 121 is biased toward the non-push-out position by a spring member 123 fitted into a pin 122 that is a swing support shaft thereof.

The push-out arm 121 includes an arm body 124 that swings around a pin 122, and a sub-arm 126 that is rotatably attached to a free end portion of the arm body via a pin 125 within a predetermined range.
And have. The pin 125 extends in parallel with the pin 122 which is the swing support shaft of the arm body 124, so that the swing of the arm body 124 and the rotation of the sub arm 126 are performed in substantially the same plane. That is, the pushing arm 121 can be bent as a whole, and the connecting portion between the arm body 124 and the sub arm 126 is the bending portion. As shown in FIG. 15, the pushing arm 121 is bent at an angle of about 90 ° in the non-pushing position.

The sub-arm 126 is further attached to an arm A126a which rotates about a pin 125, and a swing end attached to a free end portion of the arm A126a via a pin 126b, and a disk at the free end portion.
It is composed of an arm B126c that engages with the outer periphery of the armature 17. The pin 126b extends at a right angle to the pin 125, and therefore, the swing of the arm B126c is performed in a plane perpendicular to the disc carrying surface of the disc carrying portion 85. In addition,
A roller 126 is provided at the engaging portion of the arm B126c with the outer peripheral portion of the disk.
d is provided, and the engagement between the arm B and the outer peripheral portion of the disk is smoothly performed. 18 (a) and 18 (b) show the details of the arm body 124, and FIGS. 19 (a) to 19 (c).
20 (a) to 20 (c) show the details of the arm A126a, the arm B126c, and the like.

As shown in FIG. 15, a drive arm 129 is arranged below the push-out arm 121, and is rotatably attached to the disc carrier 85 by a pin 129a.
Details of the drive arm 129 are shown in FIGS. 21 (a) and 21 (b). The drive arm 129 is a member for engaging the free end portion of the pushing arm 121 at its pivoting one end and swinging the pushing arm to the pushing position. Drive arm 12
A roller 129b is provided at an engaging portion with the pushing arm 121 of 9, and the driving arm and the pushing arm are smoothly engaged with each other.

An L-shaped slide plate 131 is provided behind the pushing arm 121 and the drive arm 129 so as to be movable in the left-right direction (the arrow X direction and the opposite direction). Specifically, three pins 131a are provided on the lower surface of the slide plate 131 so as to project, and the respective pins 131 are provided in three long holes 85d formed in the disk carrying portion 85 so as to extend in the left-right direction.
a is slidably fitted. The right end portion of the slide plate 131 is connected to the other rotational end portion of the drive arm 129 by three pins 132a, 132b, 132c and two relay levers 133a, 133b. Ie slide plate
The movement of 132 causes the drive arm 129 to rotate, whereby the pushing arm 121 swings. The other end of the coil spring 118 for biasing the actuating rod 112 to the left has a slide plate 131.
The slide plate 131 is biased by this coil spring.

A guide shaft 136 shown in FIGS. 10, 12, and 14 extends below the operating rod 112 and the slide plate 131 in the disk carrying portion 85 in the left-right direction (the arrow X direction and the opposite direction). The movable body 137 shown in FIG. 15 is slidably attached to the guide shaft. The moving body 137 engages with the lower portion of the movable piece 115 at its right end, and thereby moves the operating rod 112 forward (rightward = movement in the opposite arrow X direction). Further, the moving body 137 engages with the slide plate 131 at the left end portion thereof, and thus swings the push-out arm 121 to the push-out position (to push out the disc 17 from the disc carrying portion 85).

On the rear surface of the moving body 137, a rack portion 137 extending over the entire length of the moving body
a is formed, and the gear 138 meshes with the rack portion. The gear 138 includes three double gears 139, 140, 141 each having two large and small gears integrally formed, and a double gear.
It is connected to the output shaft of the motor 143 via a worm 142 that meshes with a worm wheel 141a that is a large gear portion of 141.

The gear 138, the double gears 139, 140, 141, the worm 142, and the motor 143 described above constitute a moving force applying unit that applies a moving force to the moving body 137. Further, by the moving force applying means, the moving body 137, and the coil spring 118 and the spring member 123 as the biasing means, the operating rod 11
A drive source that drives the 2 and the pushing arm 121 is configured. Further, the drive source, the operating rod 112, and the pushing arm 1
21 and 21 constitute a disc projecting and storing means for projecting the disc 17 into the magazine 5 and storing the projecting disc 17 in the magazine 5.

Next, a positioning means for positioning the disc 17 projected from the magazine 5 at a predetermined position on the disc carrying portion 85 will be described.

As shown in FIG. 15, two rocking levers are provided near the magazine 5 at the front and rear ends of the disc carrying portion 85.
147 and 148 are arranged, and they are swingably attached to the disk carrying portion 85 by pins 147a and 148a. The swing lever 148 is shown in detail in FIG. Each free end of the rocking levers 147, 148 has a disc 17
Pins 147b and 148b that engage with the outer peripheral portion of each of the two are projected. FIG. 23 shows a cross section of the pin 148b. The pin 147b is formed exactly like the pin 148b. Both swing levers 147 and 148 are connected via a pin 149a by an interlocking lever 149 for interlocking the both swing levers. Details of the interlocking lever 149 are shown in FIG.
As shown in FIG. 22, a coil spring 150 is connected to the rocking lever 148 as an engaging force applying means for applying an engaging force to the rocking levers 147 and 148 with the disk outer peripheral portion.

As shown in FIGS. 15 and 22, an intermediate plate 151 is rotatably attached to the free end of the swing lever 148 via a pin 151a. The details of the intermediate plate 151 are shown in FIGS. 25 (a) and 25 (b). Intermediate plate 151
A pin 151b extending upward (in the direction of arrow Z) is projectingly provided at the free end of the movable piece 1 that moves together with the operating rod 112.
An overhanging portion 115a protruding from 15 can be engaged with this pin 151b. A claw portion 151c is formed on the intermediate plate 151, and a protrusion 148d protruding from the swing plate 148 is formed.
By engaging the claw portion with, the rotation of the intermediate plate 151 about the pin 151a in the clockwise direction (for example, in FIG. 22) is restricted. However, the intermediate plate 15
The counterclockwise rotation of 1 is allowed within a predetermined range.
A coil spring 152 for urging the intermediate plate 151 in the clockwise direction is connected to the intermediate plate 151.

As shown in FIG. 15, another L-shaped swing lever 155 is arranged near the left end of the disc carrying portion 85. However, this swing lever is swingably attached to the disc guide member 86 (see FIG. 17, etc.) via a pin 155a. A pin 155b that engages with the outer peripheral portion of the disk 17 is provided at the free end of the swing lever 155 so as to project. A coil spring 156 is connected to the rocking lever 155 as an engaging force applying means for applying an engaging force with the outer peripheral portion of the disk to the rocking lever.

A pivoting lever 157 which is rotatable around a pin 157a is arranged near the pivoting lever 155, and one pivoting end of the pivoting lever is pivoted to a free end of the pivoting lever 155 by a pin 157b. It is worn. On the right side of the rotating lever 157, there is arranged an L-shaped slide plate 158 which can reciprocate in the left-right direction (the arrow X direction and the opposite direction),
Moreover, the left end portion of the slide plate is engaged with the other rotation end portion of the rotation lever 157. That is, if the slide plate 158 moves to the left (direction of arrow X), the swing lever 1
The pin 157b of 55 is adapted to be detached from the outer peripheral portion of the disc.

The swing levers 147, 148, 155 described above and the interlocking lever 149
And the coil springs 150, 156 and peripheral small members such as pins associated therewith, position the disc 17 projected from the magazine 5 at a predetermined position on the disc carrier 85, in this case, directly above the turntable 79. The positioning means for doing so is configured.

The disk 17 protruding from the magazine 5 includes the above-described three swing levers 147, 148, 155 and coil springs 150, 156.
By the action of, the positioning is accurately performed on the disk carrying portion 85. However, there is a case where the disk 17 is caught by some member and cannot be drawn into a predetermined position on the disk carrying portion 85 (a position directly above the turntable 79) only by the urging force of the coil spring 150. To be In such a situation, the swing lever 14
It is assumed that 7 and 148 are at the positions shown by the chain double-dashed lines in FIGS. 15 and 22, for example. Then, as shown in FIG. 22, the movable piece 115 is moved to the right (opposite arrow X direction) together with the operating rod 112, and the movable piece is positioned to the right of the intermediate plate 151. While the movable piece 115 is moving, the overhanging portion 115a of the movable piece 115 contacts the pin 151b of the intermediate plate 151, but the intermediate plate 151 is rotatable in the direction of arrow G. Intermediate plate with moving to 1
The pin 51 is rotated counterclockwise about the pin 151a, and when the intermediate plate 151 is rotated counterclockwise by a predetermined angle, the pin 151b is separated from the projecting portion 115a, and the movable piece is moved.
The 115 move is complete. Also, from the protruding portion 115a to the pin 151b.
Is released, the intermediate plate 151 is replaced by the coil spring 152.
It can be instantly returned clockwise by the urging force of. Next, the movable piece 115 is moved to the left (the direction of the arrow X), and the protruding portion 115a of the movable piece abuts the pin 151b of the intermediate plate 151. As described above, since the intermediate plate 151 cannot rotate in the clockwise direction, the swing lever 148 is moved around the pin 148 together with the intermediate plate when the movable piece 115 is moved to the right (in FIG. 22). Rocks in the direction. The other swing lever 147, which is linked by the interlocking lever 149 to interlock with the swing lever 148, is swung counterclockwise (in FIG. 15) about the pin 147a. As a result, the pins 147b and 148b attached to the free ends of the swing levers 147 and 148 press the outer peripheral portion of the disc 17, and the disc 17 is forcibly positioned immediately above the turntable 79. That is, the movable piece 115
By the disk projecting means (including the above), the swing levers 147, 148 are swung so that the free ends of the swing levers press the outer circumference of the disc.

Next, the above-mentioned disc carrier 85 moves to move the magazine 5
A disc 17 protruding from the magazine 5 and a position detecting means for detecting that the disc holding portion has reached a position capable of holding an arbitrary disc 17 protruding from the magazine.
A detection means for detecting that the disk has been carried at a predetermined position on the disk carrying portion 85 (position immediately above the turntable 79) will be described.

As shown in FIG. 2 (d), FIG. 3 and FIG. 15, at the rear end of the left side surface of the magazine 5, along the arrangement direction of the three disks 17 accommodated in the magazine, namely, , And reflectors 161a, 161b, and 161c as three marks are provided in the up-down direction (the arrow Z direction and the opposite direction). More specifically, each of these reflectors is provided on each of the two disk carrying units 13 and the bottom plate 15 that form the main body of the magazine 5. On the other hand, as shown in FIG. 15, a photo sensor 162 for detecting each of the reflection plates 161a to 161c is provided at the right rear end portion of the disc carrying portion 85.
As is clear from FIG. 15, the photo sensor 162 is arranged in the vicinity of the actuation rod 112. Further, the bearing member 114 that reciprocally supports the operation rod 112 is also used as an attachment member for attaching the photosensor 162 to the disk carrying portion 85. Therefore, the photo sensor 16
Compared to a case where a mounting member for mounting 2 on the disk carrying portion 85 is separately provided separately from the bearing member 114, the number of parts is reduced and the cost can be easily reduced. In addition, since the operating rod 112 and the photosensor 162 are supported by one integral member which is the bearing member 114, the accuracy of the relative position dimensions of the operating rod and the photosensor is extremely improved.

Each of the reflection plates 161a, 161b and 161c described above and the photo sensor 1
The disc carrier 85 is moved by 62 and the magazine 5 is moved.
Position detecting means is provided for detecting that the disc holding portion has reached a position capable of holding an arbitrary disc 17 protruding from the disc and stops the disc holding portion.

As shown in FIG. 15, a swing plate 165 is swingably attached by a pin 165a to the upper surface of the left front end of the disk carrying portion 85. A pin 165b is projectingly provided on a free end of the swing plate 165, and the pin 165b is engageable with the outer peripheral portion of the disk 17. A coil spring 166 is connected to the rocking plate 165 to apply an engaging force to the disk 17 to the rocking plate. Above the rocking plate 165 is a photo sensor 167 operated by the rocking plate.
Are arranged and are attached to the disk carrying portion 85 by the attaching member 167a. These swing plates
165 and the photo sensor 167 constitute detection means for detecting that the disk 17 protruding from the magazine 5 is carried and positioned at a predetermined position (position directly above the turntable 79) on the disk carrying portion 85. There is.

As shown in FIG. 15, a movable plate 170 is arranged on the right side of the swing plate 165 so as to extend in the left-right direction (the arrow X direction and the opposite direction), and via a pin 170a. And is attached to the disk carrying portion 85 so as to be reciprocally movable in the left-right direction. This moving plate 170
Is given a driving force to reciprocate, and the 11th
The disc guide member 86 is lifted upward through the lifting lever 171 shown in FIGS. 15 and 15, and the disc guide member is moved from the disc guide position to a predetermined distance (described above) with respect to the playing means including the turntable 79 (described above). About 4mm) is separated. As shown in FIG. 11, the lifting lever 171 is formed in a substantially triangular shape, and is rotatably attached to a substantially triangular bracket 173 protruding from the disc carrying portion 85 by a pin 171a. One end of the rotation of the lifting lever 171 is pivotally attached to the moving plate 170 via a pin 171b. Further, the other rotating end portion 171c of the lifting lever 171 is engaged with the lower surface of the projecting portion 86a (also shown in FIG. 17) formed at the front end portion of the disc guide member 86.

As is apparent from FIG. 15, the left end portion 170c of the moving plate 170 for operating the disc guide member 86 can be engaged with a part 165d of the free end portion of the swing plate 165. As a result, the swing plate 165 is swung in the clockwise direction in FIG. 15 about the pin 165a by the moving plate 170 during disc playing, and the pin 165b of the swing plate is disengaged from the outer peripheral portion of the disc 17. It is like this.

Here, a means for applying a driving force to the above-mentioned moving plate 170 will be described.

As shown in FIG. 10, at the right front end of the chassis 32,
A lever member A176 formed in a dogleg shape is attached rotatably around a pin 176a. The details of the lever member A176 are shown in FIGS. 26 (a) and 26 (b).
A small relay lever 17 is attached to one end of the rotation of the lever member A176.
The one end of the relay lever 7 is pivotally attached by a pin 177a, and the other end of the relay lever is provided with a pin 177b. Similarly, as shown in FIG. 10, at the front end of the moving body 99 driven by the motor 108, a projection 99d extending in the opposite direction to the projection 99a, in this case, the left side (arrow X direction).
Is formed, and the pin 177 provided on the relay lever 177 is formed.
The protrusion 99d can be engaged with b.

As shown in FIG. 11, on the front surface of the sub-chassis 75 provided on the upper surface of the chassis 32, a slide plate 179 extending in the left-right direction (the arrow X direction and the opposite direction) is arranged, and It is attached to the chassis 32 via a pin 179a so as to be capable of reciprocating in the extension direction, that is, the left-right direction. Details of the slide plate 179 are shown in FIGS. 27 (a) and 27 (b). Slide plate 179
Is to the right by coil spring 180 (counter arrow X direction)
Is urged by. A protruding portion 179c extending rearward (in the direction opposite to the arrow Y) is formed at the right end of the slide plate 179, and a long hole 179a extending in the front-rear direction is formed in the protruding portion 179c. A pin 176c is provided so as to project from the rotating end of the lever member A176, and the pin 176c is smoothly fitted and inserted into an elongated hole 179d formed in the slide plate 179. That is, when the moving body 99 moves forward (direction of arrow Y), the lever member A176 rotates about the pin 176a in the counterclockwise direction in FIG.
The 179 is adapted to move to the left (direction of arrow X).

A lever member B183 is arranged in the vicinity of the lever member A176 and is rotatably attached to the sub chassis 75 by a pin 183a at a substantially central portion thereof. The details of the lever member B183 are shown in FIGS. 28 (a) and 28 (b). One end of the rotation of the lever member B183 is a cam portion 183b, and a pin 179f protruding on the protruding portion 179c of the slide plate 179 can be engaged with the cam portion 183b.
That is, the slide plate 179 is on the left side (direction of arrow X)
The lever member B183 is rotated in the counterclockwise direction in FIG. 10 about the pin 183a by moving the lever member B183.

A projecting portion 183c extending upward (in the direction of arrow Z) is formed at the other end of the rotation of the lever member B183, and as shown in FIG. 15, a pin protruding from the right end portion of the moving plate 170. 170
The protruding portion 183c can be engaged with e. That is, since the moving plate 170 is given a driving force by the motor 108 or the like that gives a driving force to the moving body 99 (shown in FIG. 10) and sequentially via the lever member A176, the slide plate 179 and the lever member B183. is there.

As shown in FIG. 10, FIG. 15 and FIG. 28 (a), (b), a pin 183e is projectingly provided at the free end of the lever member B183. As shown in FIG. 15, this pin 183e is
The front end portion of the interlocking lever 149 is engaged with the rear edge portion of the protruding portion 149c formed to protrude leftward (in the direction of arrow X). That is, as described above, the lever member B183 is rotated in the counterclockwise direction in FIG. 10 or FIG. 15 about the pin 183a, whereby the interlocking lever 149 moves forward (direction of arrow Y), and Thus, the two rocking levers 147 and 148 are adapted to be disengaged from the outer peripheral portion of the disk.

Further, as shown in FIG. 15, the moving plate 170 is connected to the slide plate 158 by a pin 158a near the left end portion thereof. Therefore, when the lever member B183 rotates counterclockwise, the slide plate 158 moves leftward (in the direction of arrow X) together with the moving plate 170, which causes the other rocking lever 155 to separate from the disk outer peripheral portion. To be

In addition, the above-mentioned disk protruding storage means (operating rod 11
2, consisting of the pushing arm 121, etc.) and the disk moving means (including the disk carrying portion 85, the supporting mechanisms 89, 90, etc.)
A positioning means including the swing levers 147 and 148; a position detecting means including the photo sensor 162; a disc guide member 86; a sensing means including the swing plate 165 and the photo sensor 167; a moving plate 170; Depending on the peripheral members related to the
Select 17 sequentially and turntable 79 disk holding surface 79
A disc transport mechanism is configured to transport the disc 17 onto the disc a and return the disc 17 into the magazine 5 from the disc carrying surface.

Next, a clamp mechanism for clamping the disc 17 conveyed on the turntable 79 will be described.

As shown in FIG. 10 and FIG. 13, a bracket 186 is provided at the left front end of the subchassis 75, and the bracket 186 is provided at a substantially central portion in the vertical direction (the arrow Z direction and the opposite direction). A rotating support shaft 187 that extends is attached. The above-mentioned disk protrusion storage means (operating rod 112,
(Consisting of the pushing arm 121, etc.) is arranged in the housing 2 in the vicinity of the deepest part of the magazine mounting portion,
The rotation support shaft 187 is arranged on the magazine insertion port 3a (first shown) side which is the entrance of the magazine mounting portion.

As is especially clear from FIG. 16, a longitudinal arm body 189 is rotatably attached to the rotation support shaft 187. No. 2
9 (a) to (c) show the details of the arm main body 189. As shown in FIG. Since the rotation support shaft 187 extends in the vertical direction (the arrow Z direction and the opposite direction), the arm body 189
Rotation of the turntable 79 is carried on the disk carrying surface 79a (10th
(See the figure). Arm body 189
A sub-arm 190 is swingably provided within a predetermined range through a pin 190a at one end of the rotation. Details of the sub-arm 190 are shown in FIGS. 30 (a) to 30 (c). The pin 190a extends parallel to the disk carrying surface 79a of the turntable 79, so that the sub-arm 190 swings in a plane perpendicular to the disk carrying surface.
At the free end of the subarm 190, a disc 1 to be played
A disk-shaped pressing member 192 that is in contact with the surface of the turntable 70 opposite to the turntable 79 and cooperates with the turntable to perform a disk clamping action is rotatably attached. The sub arm 190 swings between a first position where the pressing member forms a clamp and a second position where the clamp is released. The pressing member 192 performs a disk clamping action by the magnetic force of the magnet housed inside the pressing member 192, and thus the turntable 79 is made of a magnetic material. As shown in Figure 17,
A notch portion 86c is formed in the main surface of the disc guide member 86 made of a steel plate and near the passage portion of the pressing member 192. Although not shown, a member other than the disc guide member, a part of which is located in the vicinity of the passage portion of the pressing member 192, is formed of a nonmagnetic material, or The part is used as a notch. That is, the magnetic member is arranged in the vicinity of the passing portion of the pressing member 192.

As shown in FIGS. 13 and 16, a slide plate 194 is attached to the upper part of the arm body 189 so as to be reciprocally movable in the longitudinal direction of the arm body. Details of the slide plate 194 are shown in FIGS. 31 (a) and 31 (b). An engaging portion 194 is provided at one end of the slide plate 194.
a is formed, and the engaging portion 194a is engaged with a pin 190c protruding from the free end of the sub arm 190. A coil spring 195 is connected to the slide plate 194 as a biasing means for biasing the slide arm to move the sub arm 190 to the second position (the position where the pressing member 192 is released from the clamped state). .

On the other end of the rotation of the arm body 189, a rotation lever 196 formed in a substantially V shape is rotatably provided via a pin 196a. The rotation lever 196 is shown in FIGS. 32 (a) to 32 (c).
Details are shown. The rotating lever 196 rotates along a plane parallel to the disk carrying surface 79a of the turntable 79. One end of rotation of the rotation lever 196 is pivotally attached to the other end of the slide plate 194 by a pin 196b.

The arm body 189, the sub arm 190, the slide plate 194, the coil spring 195, and the rotating lever 196, which are described above,
Collectively referred to as support arm 198. The position of the support arm 198 indicated by the chain double-dashed line in FIG. 16, that is, the pressing member 1
The position where 92 reaches directly above the turntable 79 is called the clamp position of the support arm. Against this,
The position of the support arm 198 shown by the solid line in FIG. 16 is called the unclamped position. The support arm 198 rotates between the clamped position and the non-clamped position, and along a plane parallel to the disk carrying surface 79a of the turntable 79.

As shown in FIGS. 16 and 29 (a) to (c), an arm body 189 which is a main constituent member of the support arm 198.
An adjusting screw 201 is screwed onto the side portion of so that its axial center is parallel to the longitudinal direction of the arm body. On the other hand, as shown in FIG. 10 and FIG. 16, on the bracket 186 supporting the rotation support shaft 187, a circular pin 202 with which the tip of the screw portion of the adjusting screw can be engaged is projected. ing. However, the bracket 186 is not shown in FIG. 16, but only the pin 202 is shown.

With these adjusting screws 201 and pins 202, the support arm 198
Adjusting means for adjusting the stop position in the clamp position. Further, the adjusting means, a support arm 198, a rotation support shaft 187 for supporting the support arm,
The pressing member 192 constitutes a clamp mechanism that clamps the disk 17 conveyed on the turntable 79. In addition, the adjustment screw described above is included in the clamp mechanism.
In addition to 201, an adjusting screw 204 shown in FIG. 16 is provided. The adjusting screw 204 is screwed into the arm main body 189 in the vertical direction, and the tip of the screw portion is attached to the sub arm 190.
The free angle of the sub arm 190 can be freely adjusted by tightening or loosening the adjusting screw.

As shown in FIGS. 10 and 16, a pin 196 is provided at the other end of the rotation of the rotation lever 196 which is a constituent member of the support arm 198.
c is projectingly provided, and the pin 19 is provided in a long hole 179i formed by extending in a front-back direction (arrow Y direction and the opposite direction) on an overhanging portion 179h provided at the left end of the slide plate 179.
6c is fitted smoothly. That is, by moving the slide plate 179 to the left (direction of arrow X),
The support arm 198 is adapted to rotate toward the clamp position. The slide plate 17
The movement of 9, that is, the rotation of the support arm 198 is performed by the lever member A176.
This is done by the moving body 99 via the, and this moving body 99 also controls the vertical movement of the disk carrying portion 85.
After the movement (rotation of the support arm 198) of either one of the disc carrying portion 85 and the support arm 198 is completed, the other is moved.

As shown in FIGS. 10 and 12, a pair of detection switches 206 and 207 are provided in the front and rear of the right end portion of the chassis 32 so that the moving body 99 can come into contact therewith. Further, a photo sensor 208 is provided corresponding to the main surface of the gear 106 for applying a driving force to the moving body 99. A reflection plate detected by the photo sensor 208 is attached to the main surface of the gear 106.

As shown in FIG. 15, two photosensors 211 and 212 for detecting the moving position of the moving body 137 (also shown in FIG. 10) and one detection switch 213 are provided at the rear end of the disk carrying portion 85. Is provided. On the moving body 137, a reflection plate to be detected by the photosensors 211 and 212 is attached.

As shown in FIG. 15, at a predetermined position of the supporting member 77 that supports the turntable 79 and the like, it is detected that the carriage 80 carrying the optical pickup means is at its home position, that is, the pre-playing rest position. A detection switch 214 for that is provided.

A control unit (not shown) is provided at a predetermined position in the housing 2, and the above-mentioned playing means (comprising a turntable 79 and the like), magazine attaching / detaching mechanism (carrying plate 37 and motor 50).
Etc.) and the disc transport mechanism are controlled by the controller. Each detection switch 63, 64, 65, 206, 207, 2 mentioned above
13 and 214, and each photo sensor 67, 68, 69, 162, 167,
The detection signals respectively emitted from 208, 211 and 212 are transmitted to the control unit. The motors 50, 82, 108, 143 are driven by operation signals sent from the control unit in response to the respective detection signals.
Also, the turntable 79 operates at a predetermined timing described later.

Further, the above-mentioned control section stores ejecting means for issuing a magazine eject actuating command in response to the manual ejecting command even when the disc is playing, and stores the disc when the disc is returned from the disc carrying portion 85 into the magazine 5. A storage unit confirmation means for confirming whether or not the storage unit is in the magazine 5, and another disc is carried on the disc carrying unit when the disc projects from the magazine 5 and is conveyed to the disc carrying unit 85. And a confirmation unit for confirming whether or not there is a storage portion for storing the other disk in the magazine 5.

In addition, the control section includes automatic playing means for automatically playing a performance sequence including at least two disks unless there is a stop command, and disk presence / absence for checking whether or not the designated disk is accommodated in the magazine 5. It is provided with a confirming means and a music head detecting means for sequentially detecting the music head of each music recorded on the disc and successively detecting a plurality of (for example, three) discs.

Next, the operation of the multi-disc player having the above-mentioned configuration will be briefly described along the playing procedure with reference to FIGS. 33 to 38.

First, as shown in FIG. 1, the magazine 5 is inserted from the magazine insertion port 3a (step S _{1 in} FIG. 33).
Then, first, the magazine 5 is carried on the carrier plate 37 shown in FIGS. 7 to 9. In this state, press the magazine 5 a little hard. When the magazine 5 is pushed, the slide plate 58 provided on the lower surface of the carrier plate 37 moves rearward (in the direction of the arrow Y) by about 3 mm against the biasing force of the coil spring 59 together with the magazine. As a result, the detection switches 63 and 64 are operated, the motor 50 is rotated, and the magazine 5 starts moving backward together with the moving member 41 and the carrier plate 37. When the moving member 41 moves rearward along the guide shaft 34 by a predetermined distance, the rear end of the moving member contacts the detection switch 65, and the detection switch operates, the motor 50 moves.
Stops, and the mounting of the magazine 5 is completed (step S ₂ shown in FIG. 33).

Then, when a predetermined button of the operation button groups 7 to 10 shown in FIG. 1 is operated to specify a disc and a music piece to be played (step S ₃ ), a control unit (not shown) Confirms whether or not the designated disc is stored in the magazine 5 (step S ₄ ). This confirmation is performed by the photo sensors 67 to 69. If, when the specified disk is not in the magazine 5, this is made known to the listener by an alarm, said magazine to prompt replacement of the magazine 5 is ejected (Step S _5). When it is confirmed that the specified disc is stored in the magazine 5, the control unit
The photo sensor 167 confirms whether another disk is carried on the disk carrying section 85 (the disk carrying section is called a tray in the flowchart) (step
S ₆ ), and it is confirmed by the photosensors 67 to 69 whether or not there is a storage portion for storing the other disk in the magazine 5 (step S ₇ ). Disk carrying part 85 (tray)
If there is another disc on the top and there is no storage part for storing this disc in the magazine 5, the magazine is ejected to prompt the exchange of the magazine 5 and the listener is notified by an alarm ( step S _8). When the magazine 5 has an accommodating part capable of accommodating the other disc or is exchanged for a magazine having the accommodating part, the other disc is accommodated in the magazine 5 by the pushing arm 121 (see FIG. 15). It is (step S _9).

If it the other disk is not on the disk carrying section 85 is confirmed, the disk carrying section 85 is moved to the storage position of the specified disk 17 (step S _10). The stop of the disc carrying portion 85 with respect to the designated disc storage position is performed by the photo sensors 162 and 212. When the disk carrying portion 85 stops, the operating rod 112 (see FIG. 15 and the like) is projected to the right (counter arrow X direction), and thereby the trigger lever 26 (shown in FIG. 3) in the magazine 5 is operated. The disc 17 to be played as a projecting piece projects out of the magazine 5 and moves onto the disc carrying portion 85 (step
S ₁₁ ).

The discs protruding from the magazine 5 are swing levers 147, 14
Predetermined position on the disk carrying portion 85 (position immediately above the turntable 79) by the positioning means including 8 etc. (shown in fifteenth)
When the photo sensor 167 confirms this, the motor 108 (see FIG. 10) rotates and the moving body 9 moves.
9 is moved forward (arrow Y), the disc carrying portion 85 carrying the disk is brought down (step S _12). During the process in which the disc carrier 85 moves to its lowest position, the disc 17 on the disc carrier 85 turns the turntable 79.
Disk carrying surface 79a of the is placed (10 shown) on (step S _13).

Even after the disk carrier 85 reaches its lowest position, the moving body
The movement of 99 in the forward direction is continued, whereby the lever member A176 shown in FIG. 10 is rotated for the first time in the counterclockwise direction in FIG. Therefore, this lever member A176
The slide plate 179 connected to the slider moves to the left (direction of arrow X), and the clamp mechanism is operated.

The operation of this clamp mechanism will be described in some detail.

When the slide plate 179 moves to the left (direction of arrow X), the support arm 198 of the clamp mechanism first rotates about the rotation support shaft 187 in the counterclockwise direction in FIG. 16, for example. When the support arm 198 rotates by a predetermined angle and the pressing member 192 reaches directly above the turntable 79,
The adjustment screw 201 provided on the support arm (the arm body 189 that is a constituent member of the support arm) is engaged with the pin 202, and the rotation of the support arm is stopped. After this, slide plate 179
Is further driven to the left, which causes support arm 198
The rotation lever 196, which is a component of the above, rotates about the pin 196a, so that the slide plate 194 connected to the rotation lever moves along the arm body 189. Therefore,
As is clear from FIG. 13, the sub-arm 190 swings downward, the pressing member 192 comes into contact with the main surface of the disc 17, and the disc is clamped (step S ₁₄ ).

On the other hand, by moving the slide plate 179 to the left (direction of arrow X), the lever member shown in FIGS. 10 and 15 is shown.
The B183 rotates about the pin 183a counterclockwise in both figures. Then, as is apparent from FIG. 15, the pin 183e of the lever member B183 engages with the interlocking lever 149 to move the interlocking lever forward (direction of arrow Y). Therefore,
The swing levers 147 and 148, which have positioned the disc 17 on the disc carrying portion 85, are released from the outer peripheral portion of the disc 17. When the lever member B183 rotates counterclockwise, the overhanging portion 183c of the lever member B183 moves the moving plate 170 (the tenth portion).
Push (shown) to the left (direction of arrow X). Therefore, the other swing lever 155 shown in FIG. 15 separates from the disk outer peripheral portion. By moving the moving plate 170 to the left, the lifting lever 171 shown in FIGS. 11 and 15 pivots about the pin 171a in the counterclockwise direction in FIG. 11, whereby the disc guide The member 86 is swung upward by a predetermined angle. Thus it is possible to play the disc, playback is started turntable 79 and the carriage 80 (such as FIG. 10 shown) is operated (step S _15).

When playing is finished disc is being returned into the magazine 5 (step S ₁₆₎ is, are not described in detail since the disk return operation to the magazine 5 is made by tracing the substantially reverse process of the disk loading operation described above . However, the operation of pushing the disc 17 into the magazine 5 from above the disc carrying portion 85 is performed by the pushing arm 121 shown in FIG. Further, the control unit checks whether or not the magazine 5 has a storage unit for storing the disc to be returned in the magazine 5 by using the photosensors 67 to 69. As shown in FIG. 15, when the push-out arm 121 is in the push-out position for pushing out the disc 17, the tip portion of the push-out arm seems to come into contact with the magazine 5. The magazine 5 has a cutout 5b at this portion. Since it is formed, the operation of the extrusion arm is not hindered. 2 (a), (d)
This cutout 5b is also shown in (f) and (f), but a listener can grasp the disk 17 with his nail and take it out of the magazine 5 through the cutout. However, the notch is quite small, and the listener can grip only the outer peripheral portion of the disc 17, and therefore the recording surface of the disc is not damaged by the listener's nail.

Thereafter, the above operation is repeated according to the designated disc. Also, to replace the magazine 5, the magazine 5
Is ejected, the lid 6 of the magazine insertion opening 3a is opened in a form of being pushed by the ejected magazine.

Next, an automatic performance means for automatically performing a performance sequence including at least two discs unless there is a stop command will be described. FIG. 34 shows a case where this automatic performance means is operated by a manual.
First, the disk should leave play is designated (Step S _20), the designated disk is conveyed onto the turntable 79 (Step S _21). Then, playback from the head of the disk is started (step S _22), it is exchanged when the player has finished the next disk. When the disk are sequentially switched (step S ₂₆₎ has been played last specified disk is completed, it starts playing from the first disk again. When the performance stop button is pressed during the continuous performance, the performance ends.

Note that FIG. 35 shows the operation of the automatic performance means when programming the music.

FIG. 36 illustrates a music head detecting means for detecting the music head of each music recorded on each disk in the magazine 5 sequentially and continuously for a plurality of disks. First, when the index scan button (one of the operation button groups 7 to 10) which is a so-called lock button is pressed, the button is locked in the pressed state. Then, the number X of the disc to leave the index scan is 1 and the set, the first track of the song head of the first disc is played (step S ₄₁ ~S _44). If left index scanning button in this state is depressed, the first sheet of the second music following song head of each song disks are sequentially played (S ₄₅ ~). After the beginning performance of each song recorded on the first disc,
The beginning performance of each song is performed on the second and subsequent discs. When the beginning performance of each song on all the discs is completed, the normal performance from the first disc is started. Also, if the RELEASE button is pressed during the beginning of each song, it will move to the normal performance.

FIG. 37 and FIG. 38 are for explaining the modification of the music beginning detecting means. FIG. 37 shows that when the index scan button is pressed immediately after the beginning of a certain piece of music on a given disc is played, the beginning of the beginning of the next piece of music is immediately started. Further, FIG. 38 shows that when the index scan button is pressed immediately after the beginning of the music of a certain disc is played, the beginning performance of each song of this disc is canceled and It indicates that the beginning performance of the tune is sequentially performed.

39 to 42 show a modified example of the internal structure of the magazine 5.

In the magazine 5 shown in FIG. 39, the trigger lever
By pushing 26 in the direction of arrow J, the protruding arm 21
Swings around the pin 21a against the biasing force of the coil spring 29, and the disc 17 is pushed out of the magazine 5.

In the magazine 5 shown in FIG. 40, the trigger lever
By pushing 26 in the direction of arrow J, the intermediate lever 22
1 pin against the biasing force of the coil spring 222
It rotates around 221a, which allows coil sprinkling.
The projecting arm 21 urged by 223 swings around the pin 21a and the disk 17 projects to the outside of the magazine 5.

Further, in the magazine 5 shown in FIG. 41, by pulling the wire 226 as the trigger lever in the direction of arrow K, the protruding arm 21 swings around the pin 21a against the biasing force of the coil spring 227. , The disk 17 projects out of the magazine 5.

In the magazine 5 shown in FIG. 42, the wire 227 is pulled in the direction of arrow K against the urging force of the coil spring 228, whereby the disk 17 is projected out of the magazine 5.

In the multi-disc player described above, the 16th
As shown in the figure, the clamp mechanism is used to
Although the pressing member 192 is configured to move in parallel with the disc carrying surface of the turntable 79 by the rotation of 8, the configuration is not limited to this. 43 and 44 show another embodiment of the clamp mechanism. As shown in the figure, a guide shaft 231 extending parallel to the disk carrying surface 79a of the turntable 79 is provided, and the support arm 232 is an arm body 233 that slides on the guide shaft.
And is attached to the tip of the arm body via a pin 233a so as to be swingable in a plane including the vertical direction (the arrow Z direction and the opposite direction), and the pressing member 192 is attached at its free end.
And a sub-arm 235 that rotatably supports the. A rack portion 233b is formed on the arm body 233 along the moving direction thereof, and the arm body is driven by a drive source including a gear 236 meshing with the rack portion 233b. A coil that urges the sub-arm between the arm body 233 and the sub-arm 235 toward the non-clamping position (the position of the sub-arm where the pressing member 192 attached to the sub-arm separates from the main surface of the disk 17). The spring 237 is interposed. The sub arm 235 is a pin 23 on the arm body 233.
By rotating the operation lever 239 rotatably provided by 9a, the slider 240 is swung.

Effects of the Invention As described in detail above, in the multi-disc player according to the present invention, the magazine (5) in which a plurality of discs (17) are sequentially arranged and housed, and an arbitrary disc in the magazine are sequentially selected to form a turntable. A disc transport mechanism for transporting the disc onto the disc-carrying face and returning the disc from the disc-carrying face into the magazine, and a clamp mechanism for clamping the disc transported on the turntable are provided. A pressing member (192) that abuts on a surface of the disc to be opposed opposite to the turntable and cooperates with the turntable and performs a disc clamping action by the magnetic force of a magnet; A support arm that is rotatable between the clamp positions and rotatably supports the pressing member, Lifting arm rotates along the disk carrying surface parallel to the plane of the turntable.

Therefore, the size of the disc player as a whole is smaller than that of the type that has been developed, such as a multi-disc player in which the support arm moves in a direction substantially perpendicular to the disc-carrying surface of the turntable. It is easy to reduce the dimension in the vertical direction (direction perpendicular to the disk carrying surface of the turntable).

Further, in the multi-disc player according to the present invention, the non-magnetic material is arranged in the vicinity of the passage portion of the above-mentioned pressing member, or nothing is arranged. Therefore, the attraction force of the magnet provided on the pressing member against the magnetic member does not act during the movement of the pressing member, and the disc clamping operation is smoothly performed.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a multi-disc player according to the present invention, and FIGS. 2 (a) to 2 (f) are plan views, front views, left side views, right side views, rear views and bottom views of magazines, respectively.
FIG. 3 is a view showing the internal structure of the magazine, and FIGS. 4 to 6 are IV-IV cross-sectional views, V-V cross-sectional views, VI-VI cross-sectional views, and FIGS. 7 to 9 shown in FIG. Is a plan view, a left side view and a right side view of the magazine attaching / detaching mechanism, and FIG. 10 is a plan view of the disc transporting mechanism and the playing means.
Figure 14 is a XI-XI arrow view, XII-XII arrow view, XIII-XIII arrow view, XIV-XIV arrow view of FIG. 10, and FIG. 15 is an XV-XV arrow view of FIG. 11. , Figure 16 is XVI-XVI for Figure 13.
FIG. 17 to FIG. 32 are partial detailed views of the internal structure of the multi-disc player, and FIGS. 33 to 38 are views for explaining the operation of the multi-disc player.
39 to 44 are views showing a partial modification of the multi-disc player. Explanation of main part code 2 …… Housing 5 …… Magazine 13 …… Disk carrying unit 17 …… Disk 24 …… Holding arm 26 …… Trigger lever 32,33 …… Chassis 50,82,108,143 …… Motor 63.64.65.206. 207.213.214 …… Detection switch 67.68.69.162.167.208.211.212 …… Photo sensor 79 …… Turntable 80 …… Carriage 85 …… Disk carrier 86 …… Disk guide member 89,90 …… Support mechanism 99,137 …… Move Body 112 …… Actuating rod 121 …… Extrusion arm 147,148,155 …… Swing lever 192 …… Pressing member 198 …… Support arm

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Norihiro Yoshitake 25 Nishimachi, Yamada, Kawagoe City, Saitama Prefecture 1 1 Pioneer Co., Ltd. Kawagoe Plant (72) Yoichi Yamazaki 25, Nishimachi, Yamada, Kawagoe City, Saitama Prefecture Address 1 Pioneer Corporation Kawagoe Factory

Claims (1)

[Claims] 1. A housing, a playing means including a turntable and provided in the housing, a magazine for accommodating a plurality of discs in order and removably mounted in a predetermined mounting portion in the housing, A disc transport mechanism that sequentially selects arbitrary discs in the magazine and transports the discs onto the disc-carrying face of the turntable, and transports the discs from the disc-carrying face into the magazine, and onto the turntable. A clamp mechanism for clamping the disc, the clamp mechanism abutting against a surface of the disc to be played, which is opposite to the turntable, and cooperating with the turntable, and pressing force for performing the disc clamping action by the magnetic force of the magnet. Between the member and the clamped and unclamped position with respect to the turntable A supporting arm that is movable and rotatably supports the pressing member, the supporting arm moves along a plane parallel to the disk carrier, and a magnetic member is disposed in the vicinity of the passage of the pressing member. A multi-disc player characterized by being played.