JPH0150024B2 - - Google Patents

Description

TECHNICAL FIELD The present invention relates to a disc player, and more particularly to a multi-disc player that can accommodate a plurality of discs and can sequentially select any of the stored discs for continuous performance.

BACKGROUND ART As such a disk player, a joke box is generally known. However, conventional juice boxes were originally very large, making them unsuitable for home use.

In recent years, digital audio discs (hereinafter referred to as
(abbreviated as DAD), by recording digital signals, it can accommodate a larger amount of information than conventional audio disks that record analog signals, and generates less noise during playback. Several types of disks have been developed and are widely used.
Among these, disks with an outer diameter of approximately 12 cm, which are generally called compact disks and which record and read signals using laser light, are easy to handle and allow the overall size of the disk player to be made smaller. It is. Recently, this small DAD
A multi-disc player has been developed that is ideal for use as a home joke box that can store a plurality of discs (for example, 5 to 6 discs) at any time and play these discs continuously. By the way, the playback time of a small DAD is one hour, which is about the same as a conventional analog audio disk.
It can accommodate 1.5 times the amount of information. Therefore, for example, six discs can store approximately 120 songs with a performance time of around 3 minutes, making it easy to cover songs by genre of your choice, such as Jiyaz or Enka.

A multi-disc player basically includes a performance means including a turntable, a pickup, etc.
It is equipped with a magazine that sequentially arranges and stores a plurality of disks at a predetermined pitch, and a disk ejecting and transporting mechanism that sequentially selects arbitrary disks in the magazine and transports them to the performance position, that is, onto the turntable.

In a multi-disc player, when transporting the selected disc to the playing position, that is, onto the turntable, there are two directions, for example, one parallel to the disc supporting surface of the turntable and the other substantially perpendicular to it.
Moving the disk in the direction is performed. However, in the multi-disc player that has already been developed, the disk ejecting and conveying mechanism for carrying out this conveyance directly picks up the desired disk in the magazine, the end of the disk in the direction of protrusion from the magazine, or almost the entire disk. It is of the type that is gripped and pulled out of the magazine, and the structure of the disk ejecting and transporting mechanism, including the holding mechanism that grips the disk, is large and complicated.Moreover, the space required for its operation is large, and the entire player is It is difficult to miniaturize the device as well as increase the cost.

Summary of the Invention The present invention has been made in view of the above points, and its purpose is to easily downsize and reduce the cost of the player as a whole, and to
An object of the present invention is to provide a multi-disc player in which disks are transported with high precision.

A housing, a playing means provided in the housing including a pickup and a turntable, and a plurality of plate-shaped trays each capable of supporting a disk on its main surface and arranged so as to protrude and store along each main surface. a magazine that is detachably mounted on a predetermined mounting portion in the housing; and a disk ejecting and transporting mechanism that sequentially selects arbitrary trays in the magazine and transports them onto the disk supporting surface of the turntable; The disk ejecting and conveying mechanism includes a movable member that is movable along the arrangement direction of each of the trays, and a movable member that is disposed on the movable member and engages with each of the trays to eject the trays from the magazine. and positioning means for positioning the moving member so that the tray driving means faces a tray carrying a disk to be played, and the playing means is also mounted on the moving member. It is characterized by being supported.

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 previous generation of the multi-disc player.

As shown in FIG. 1, the front panel 3 of the housing 2 is provided with a rectangular opening 3a for accommodating the magazine 5 within the housing. The opening 3a extends in the left-right direction. However, the left-right direction referred to herein refers to the front direction indicated by arrow Y, and the direction of arrow X is to the left. Further, arrow Z indicates upward. Also provided on the front panel 3 are a group of operation buttons 6 and a display section 7 for operating the multi-disc player.

As shown in FIGS. 2 and 3, the magazine 5 has a flat rectangular parallelepiped magazine body 8 as a whole.
It consists of a total of six rectangular plate-shaped trays A11 and trays B12, two types of three trays each carrying a disk 10 on its main surface. The tray A11 and the tray B12, and hence the disk 10, are arranged and stored in order at a predetermined pitch in a direction perpendicular to the disk supporting surface of the turntable, which will be described later, in this case, in the vertical direction (arrow Z direction and the opposite direction). has been done. Tray A11 and tray B12 are
A rotating shaft 8a is provided at the right rear end of the magazine body 8 and extends in the arrangement direction (vertical direction) of each tray.
It is provided rotatably around the magazine body 8, and can be protruded from the magazine main body 8 along each main surface and stored therein. The details of tray A11 are shown in FIG. 4, and the details of tray B11 are shown in FIG. The only difference is the shape and position of the hanging portions 11a and 12a. Note that the trays A11 and trays B12 are arranged alternately. The magazine body 8 also includes a plate spring 13a near the rotating shaft 8a, and small openings 11b and 12 arranged in alignment in the arrangement direction of the trays and formed in each tray.
Five spherical members 13b which are movably fitted into the spherical members 13b are provided. The diameter of each spherical member 13b is equal to the pitch dimension of each tray 11, 12, and a bias force in the direction of movement is applied by a leaf spring 13a. The leaf spring 13a and the spherical member 13b are used to prevent other trays from protruding when one tray protrudes from the magazine body 8.

As shown in FIG. 1, a chassis 16 as a support member is attached to a bottom plate 15 fixedly provided within the housing 2. As shown in FIG. The chassis 16 includes a flat part 16a extending in the front-rear direction (arrow Y direction and the opposite direction) and the left-right direction (arrow It consists of a pair of vertical surfaces 16b and 16c extending in the direction of arrow Z (direction of arrow Z and the opposite direction thereof, that is, the direction in which the trays are arranged).

As shown in FIGS. 6 to 10, a pair of vertical surfaces 16b and 16 of the chassis 16 described above
A movable member 18 is disposed between the rear end portions of the trays c, and is attached to each vertical surface so as to be movable in the vertical direction, that is, in the arrangement direction of the trays 11 and 12. In detail, this moving member 18 is
A movable chassis A19 made of resin shown in FIGS. 11a and 11b and a flat movable chassis B20 made of a steel plate shown in FIG. 12 are connected by screws or the like. However, the movable chassis A19 is fixed to the upper surface of the movable chassis B20.

Here, as is particularly clear from Figure 11b,
A support plate 22 is attached to the upper surface of the movable chassis A19 made of resin via a vibration isolating member 21 made of rubber or the like, and a turntable 23 is attached to the support plate. A carriage 24 carrying an optical pickup means is also arranged on the carrier plate 22, and the carriage 24 is arranged along a plane including the disk carrying surface 23a of the turntable 23, in this case in the left-right direction (in the direction of the arrow X and It is attached to the carrier plate 22 so as to be movable in the opposite direction). Further, a screw shaft 26 is screwed into a part of the carriage 24, and a motor 2 is provided for applying rotational force to the screw shaft.
A carriage drive means for driving the carriage 24 is provided.

The above turntable 23, the carriage 24 including an optical pickup means, and the carriage driving means constitute a playing means for performing a disc performance. That is, the playing means is supported on the moving member 18 and moves in the up and down direction (in the direction of arrow Z and the opposite direction) together with the moving member.

As shown in FIGS. 11a and 11b, an arcuate guide surface 19a is formed on the lower surface of the movable chassis A19, on which the rotating ends of the trays 11 and 12 protruding from the magazine body 8 can slide. Also, the first
As shown in FIG. 2, the arcuate guide surface 19a faces the upper surface of the movable chassis B20 with a distance slightly larger than the thickness of each tray 11 and 12, and the rotating end of each tray slides into contact with the upper surface of the movable chassis B20. An arcuate guide protrusion 20a is formed. These arcuate guide surfaces 19a and arcuate guide protrusions 20a constitute a tray guide section that guides one tray protruding from the magazine body 8.

As shown in FIGS. 6, 9, and 10, a pair of vertical surfaces 16b, 16c of the chassis 16
A plate-shaped guide holding member 29 is arranged between the front ends of the magazine 5 to guide and hold the magazine by slidingly contacting the lower surface of the magazine 5. 16a. FIG. 13 shows details of the guide holding member 29. A tray guide member 30 is provided on the upper surface of the left end portion of the guide holding member 29 . The tray guide member 30 includes a plurality of arcuate tray guides located between the above-described tray guide portion (consisting of the arcuate guide surface 19a and the arcuate guide protrusion 20a) and the tray guide path of the magazine body 8 and continuous therewith. A groove 30a is formed. That is, each tray 11, 12 protruding from the magazine body 8 engages with this tray guide groove 30a, slides along this, and is then guided into the tray guide portion (described above) of the moving member 18. . Note that the tray guide path of the magazine body 8 consists of 8c and 8b in FIG.
Although not shown, a plurality of guide grooves are formed like the guide groove 30a.

Here, as shown in FIGS. 10, 13, and 14, a pair of push levers 32 and 33 are installed in the deepest part of the magazine mounting part in the vertical direction (arrows) by a distance corresponding to the thickness of the magazine 5. They are provided spaced apart in the Z direction and the opposite direction). Each push lever 32, 33 has a pin 32a, 33a.
It can swing freely around the center. The upper push lever 32 is attached to the tray guide member 30 described above, and the lower push lever 33 is attached to the guide holding member 29. Each of the push levers 32, 33 engages with the rear end of the magazine 5 at each swing end 32b and 33b, thereby causing each push lever to swing counterclockwise in FIG. There is. A pair of detection switches 34 and 35 are arranged in front of each of the push levers 32 and 33 so that the other swinging ends 32c and 33c of the push levers actuate their actuators. Each of these push levers 32, 33,
The detection switches 34 and 35 constitute magazine attachment detection means for detecting that the magazine 5 is attached to the magazine attachment portion in the housing 2.

Next, the moving member 18 consisting of the movable chassis A19 and the movable chassis B20 is moved in the vertical direction (arrow Z
The moving member moving means for moving the moving member in the opposite direction will be explained.

As shown in FIGS. 6 to 10, longitudinal moving plates 37 and 38, which are a pair of moving members extending in the front-rear direction, are provided on the outer surfaces of the left and right vertical surfaces 16b and 16c of the chassis 16. .
As is particularly clear from FIGS. 7 and 8, each moving plate 37, 38 has guide grooves 37a, 37b and 38 extending in the direction of extension of each moving plate.
a, 38b are formed, and each moving plate 3
7 and 38 are attached to the chassis 16, which is a supporting member, by movably fitting the respective guide grooves onto pins 16d protruding from the outer surfaces of the vertical surfaces 16b and 16c. That is, the movable plates 37 and 38 are capable of reciprocating in the front and rear directions.

Here, the moving member 18 consisting of the movable chassis A19 and the movable chassis B20 will be referred to as a first moving member, and the moving plates 37 and 38 will be referred to as a second moving member. Furthermore, as is clear from FIGS. 7 and 8, the movable plate 3 serving as the second movable member
Guide grooves 37a, 37b, 3 formed in 7, 38
Some of the guide grooves 37b, 38b among 8a, 38b
is provided offset to one side with respect to the moving direction of each moving plate, in this case, to the lower side. The other guide grooves 37a, 38a are not provided so offset.

The movable chassis B20, which is a component of the moving member 18 that is the first moving member, has three pins 20c protruding from it, one on the left side and two on the right side. As is clear from FIG. 7 and FIG.
The movable chassis B20 is movably fitted into guide grooves 16e formed in vertically extending portions 6b and 16c, thereby guiding the movable chassis B20 in the vertical direction.

Note that the guide groove 16e formed in the chassis 16
are referred to as first guide grooves, and on the other hand, guide grooves 37b and 38b formed in the moving plates 37 and 38, which are the second moving members, are referred to as second guide grooves.

Pins 20c protruding from both left and right sides of the movable chassis B20 protrude to the outside of the chassis 16 through a guide groove 16e, and cam grooves 37d formed on the inner surfaces of movable plates 37, 38, which are second movable members. , 38d are movably engaged with this pin 20c. The cam groove 37d formed in the movable plate 37 as a whole is formed so as to be inclined downward (counter to the direction of arrow Z) toward the front (direction of arrow Y). Further, the cam groove 38d formed in the movable plate 38 is formed so as to be inclined upwardly toward the front as a whole. That is, the moving plates 37 and 38 which are the second moving members
When the moving members 18 (movable chassis A19 and movable chassis B2), which are the first moving members, move relative to each other,
Each cam groove 3
7d and 38d are formed.

The cam grooves 37d and 38d are connected to the moving plate 37,
They are formed between guide grooves 37b and 38b formed on one side (lower side) of the movable plates 38 in the moving direction and the other side (upper side) of each moving plate.
Each of the cam grooves 37d, 38d has six linear portions 37e, 38e extending in the moving direction (front-back direction) of the movable plates 37, 38, and six linear portions 37e, 38e that are continuous with the linear portions and are inclined with respect to the linear portions. diagonal portion 37
f, 38f, and the whole has a step-like cam groove. Further, as shown in FIGS. 7 and 8, the ends of the cam grooves 37d and 38d and the guide groove (second guide groove) 16e formed in the chassis 16
The ends of are matched.

As is clear from the above configuration, the moving member 18
(The movable chassis B20, which is a constituent member of the movable chassis B20) is supported at three points on the chassis 16, which is a supporting member, via a pin 20c and moving plates 37 and 38, and as is clear from FIG. One of the points (that is, the position of the pin 20c) is determined by the tray guide groove 30a of the tray guide member 30 and the tray guide portion of the moving member 18 (the arcuate guide surface 19 of the movable chassis A19 and the arcuate guide protrusion 20a of the movable chassis B20). (configured) near the connection part.

By arranging one of the support points of the movable member 18 at this position, the tray guide section provided on the movable movable member 18 can be positioned with high precision with respect to the tray guide groove 30a, and therefore, The disk is transported smoothly and with high precision.

As shown in FIGS. 6 and 9, a rack portion 37h is formed at the right front end of the left movable plate 37 along the direction in which the movable plate extends. A small gear portion 40a of a double gear 40 provided on the flat surface portion 16a of the chassis 16 meshes with the rack portion 37h. The large gear 40b of the double gear 40 is connected to the output shaft of the motor 45 by a gear 41, a pulley 42 integrally formed with the gear 41, a belt 43, and a small pulley 44. In addition, left and right moving plates 37 and 38
A rotary lever 47 is rotatably attached to the flat surface portion 16a of the chassis 16 at approximately the center thereof via a rotary support shaft 47a extending in the vertical direction (arrow Z direction and the opposite direction thereof). is provided, and both ends of the rotary lever 47 are engaged with the left and right movable plates 37, 38 in a U-shape, respectively.

The second moving member is constructed by the above-mentioned double gear 40, gear 41, pulley 42, belt 43, small pulley 44, motor 45, rotary lever 47, and peripheral small members related thereto. A driving force applying means for applying driving force to the barrel moving plates 37 and 38 is configured. Further, the movable member 18 consisting of the movable chassis A19 and the movable chassis B20 is moved in the vertical direction (arrow Z
and the opposite direction).

As shown in FIG. 7, a detection switch 4 is provided on the inner surface of the left side vertical surface portion 16b of the chassis 16.
9 is provided. This detection switch 49 is
This is for detecting that the movable plate 37, which is a second movable member that reciprocates in the front-back direction, is at the most backward movement position (forward movement limit position), and is an engagement protruding from the left side of the movable plate 37. It operates when the protrusion 37i engages with its actuator. Six slits 50a are arranged on the right side of the front end of the movable plate 37 along the moving direction of the movable plate.
An address plate 50 having an address plate 50 is provided. Further, behind the detection switch 49, a photo sensor 51 is provided corresponding to the slit 50 of the address plate for detecting the slit. Note that the detection switch 49 will be referred to as a first sensor, and the photo sensor 51 will be referred to as a second sensor. The slit detection signal obtained from the second sensor is sent to a counter (not shown) that counts the slit detection signal. Further, a control unit (not shown) that automatically controls the multi-disc player is disposed at a predetermined position within the housing 2, and the control unit determines the stop position of the movable plate 37 based on the count value of the counter. know.

The detection switch 49, which is the first sensor described above,
The address plate 50, the photo sensor 51 as the second sensor, the counter, and the control section constitute a positioning mechanism that moves the movable plate 37 to a desired address position and positions it at the desired address position. The positioning mechanism moves the moving plate 37 by a distance corresponding to the difference between the current address and the desired address when a movement command is received while the second sensor, the photo sensor 51, is emitting a slit detection signal. If a movement command is received when no detection signal is being generated, the moving plate 37 is moved (backwards) until a detection signal is obtained from the detection switch 49, which is the first sensor, and then moved to the desired address position. There is.

As shown in FIGS. 6 and 10, each tray 11, 1 in the magazine 5 is provided at the front right end of the upper surface of the movable chassis B20, which is a component of the moving member 18.
A tray push-out member 53 is provided for engaging one of the two trays and causing each tray to protrude to the outside of the magazine body 8. FIG. 15 shows details of the tray pushing member 53. As is clear from FIG. 15, the tray push-out member 53 is formed in a generally L-shape as a whole, and two arc-shaped guide grooves 20 of different radii are formed in the movable chassis B20.
A pair of pins 53a protruding from the tray pushing member e and 20f are movably engaged and guided, and at the same time, the pin 53a is slightly longer than the guide grooves 20e and 20f. The tray pushing member 53 has a small gap in the tray stacking direction. That is, the tray pushing member 53 rotates about the center of curvature of each arcuate guide groove 20e, 20f as a rotation axis, and pushes the tray 11, 1 at its rotating end 53b.
2 to make it protrude from the magazine body 8. Note that, as is clear from FIGS. 3 and 6, the virtual axis of rotation of the tray pushing member 53 (the guide groove 2
0e, 20f center of curvature) and each tray 11, 1
The two rotating shafts 8a are made to coincide with each other. Also,
Each tray 11 and 12 is located near its rotation axis 8a.
1c and 12c (see FIGS. 3 to 5) are pushed by the tray ejecting member 53 to protrude to the outside of the magazine body 8.

The tray pushing member 53 is made of a relatively soft resin, and the rotating end portion 53b of the tray pushing member is flexible in the vertical direction, that is, in the arrangement direction of each tray 11, 12, and as described above, is flexible in the vertical direction. has a small amount of play. Therefore, when a part of the rotating end 53b of the tray ejecting member 53 fits into the tray guide path (described above) of the magazine main body 8, this flexibility allows the rotating end to follow the tray guide path. It's starting to move. Further, when the rotating end portion 53b of the tray pushing member 53 is not in operation,
It engages with the Y-shaped groove 20g of the chassis B20 to restrict movement in the Z direction (upward).

Note that since the tray pushing member 53 is provided on the movable chassis B20, which is a component of the moving member 18, it includes the above-mentioned moving member moving means (consisting of the moving plates 37, 38, etc.), the address plate 50, etc. The tray pushing member 53 is moved to a position where it engages with the tray (11 or 12) carrying the disc 10 to be played by the positioning mechanism.
A tray pushing member moving means is configured to move the tray together with the moving member 18.

Next, a tray pushing member 53 is used to make each of the trays 11 and 12 mentioned above protrude from the magazine body 8.
The tray pushing member driving means for rotationally driving the tray pushing member will be explained.

As shown in FIGS. 6, 9, and 10, a moving body 56 extending in the front-rear direction is disposed on the right side of the chassis 16, and the chassis 16 is movable in the extending direction. is attached to. Details of the mobile body 56 are shown in FIGS. 16a and 16b. A rack portion 56a is formed at the front left end of the movable body 56 along the direction of extension of the movable body. A small gear portion 57a of a double gear 57 provided on the flat surface portion 16a of the chassis 16 meshes with this rack portion 56a. The large gear portion 57b of the double gear 57 includes a gear 58, a pulley 59 formed integrally with the gear 58, and a belt 6.
0, the small pulley 61, the motor 62, and peripheral small members related thereto constitute a driving force applying means for applying a driving force to the movable body 56. In addition to the functions described below, the movable body 56 also functions to move forward in response to a magazine eject signal to cause the magazine 5 to protrude outside the housing 2. However, the protruding operation of the magazine 5 by the movable body 56 is caused by the engagement of a part of the movable body with the rocking lever 64 shown in FIG. The swinging end of the swinging lever swings clockwise in FIG. 6 from the center and engages with the rear end of the magazine 5.
This is done by pushing out. Note that the swing lever 64 is applied with a bias force in the counterclockwise direction in FIG. 6 by a spring member 65.

Moreover, as shown in FIGS. 6 and 10,
Near the right end of the chassis 16 is one rotating end 6.
7a is the locking recess 5a of the magazine 5 (see Figure 3)
a locking member 6 that locks the magazine in the mounting position relative to the housing 2 by engaging with the magazine;
7 is rotatably provided around a pin 67b. This locking member 67 is connected to the one end 6 of rotation.
7a is biased by a spring member 68 so as to fit into the locking recess 5a of the magazine 5. 1st
As shown in FIG. 6a, a pin 67d protruding from the other rotating end 67c of the locking member 67 is connected to the movable body 56.
It is slidably engaged with a cam groove 56c formed at the front end of the cam groove 56c. That is, the magazine 5 is operated by a locking mechanism consisting of a locking member 67 and a spring member 68.
The locked state is released by the movement of the moving body 56.

As shown in FIGS. 6, 9, and 10, there is a pin 70a on the lower surface of the moving member 18 (the movable chassis B20, which is a component thereof) that moves in the vertical direction (arrow Z direction and the opposite direction). An intermediate lever 70 is rotatably attached via the .
At one end of the rotation of the intermediate lever 70, there is a U-shaped notch 70 that can smoothly engage with a cylindrical engagement part 56d formed at the rear end of the movable body 56 and extending in the vertical direction.
b is formed. As shown in FIGS. 17 and 18, a first lever member 71 extending in the left-right direction is located at the front end of the lower surface of the movable chassis B20.
and a second lever member 72 are arranged, and the movable chassis B20 is connected to the movable chassis B20 via a plurality of pins 73.
is attached to the shaft so as to be able to reciprocate in each direction of extension. Details of the first lever member 71 and the second lever member 72 are shown in FIGS. 19a and 19b. A pin 70c is attached to the other rotating end of the intermediate lever 70.
is provided protrudingly, and the pin is connected to the second lever member 7.
It is slidably fitted into an elongated hole 72a formed at the right end of 2 and extending in the front-rear direction. In other words, the moving body 56 is moving forward and backward (in the direction of arrow Y and the opposite direction).
When the intermediate lever 70 reciprocates, the intermediate lever 70 rotates around the pin 70a, and thereby the second lever member 7
2 is configured to reciprocate left and right (in the direction of arrow X and in the opposite direction). The second lever is operated by the above-mentioned moving body 56, the driving force applying means (described above) that includes the motor 62 and the like and applies a driving force to the moving body 56, the intermediate lever 70, and peripheral small members related thereto. A drive mechanism for driving the member 72 is configured. Note that the first lever member 71 is engaged with the tray pushing member 53 at the right end,
Its forward movement (movement to the right) serves to rotate the tray pushing member. Further, the second lever member 72 is for moving a support body (described later) which is a component of a clamp mechanism described later.

As shown in FIGS. 10, 17, and 18, the first lever member 71 has a mechanism for biasing the first lever member in its forward movement direction, that is, to the right (counter to the direction of arrow X). A coil spring 75 serving as a biasing means is interposed between the first and second lever members 71 and 72, and the other end of the coil spring is connected to the second lever member 72. There is.

As shown in FIG. 17, the movable chassis B2
A first recess 20h extending in the left-right direction (direction of arrow is formed. The first lever member 7 is located so as to be sandwiched between the movable chassis B20 and the second lever part 72.
1 is provided with an opening 71a that can face the first and second recesses 20h and 72c. Inside the opening 71a, there are a first recess 20h and a second recess 7.
A spherical movable piece 76 that can be engaged with 2c is arranged. Here, the dimension indicated by da in FIG. 17, that is, the distance between opposing surfaces within the range of relative movement between the movable chassis B20 and the second lever member 72, is smaller than the outer diameter dimension of the movable piece 76.
Also, the dimensions indicated by db in FIG.
The distance between the second recessed portion 72c and the bottom surface of the recessed portion facing the one surface is slightly larger than the outer diameter of the movable piece 76.

The first and second recesses 20h and 72c described above,
The opening 71a, the movable piece 76, etc.
Then, the second lever members 71 and 72 are locked, and in this locked state, the first and second lever members move forward (rightward = counter-arrow X direction) to move the first lever member 7
1 is the most forward position (i.e., the tray pushing member 53
A lock/release means is provided which releases the locked state when the trays 11, 12 are completely protruded from the magazine body 8. It should be noted that the slight movement of the first lever member 71 to the forwardmost position after the locking state with the second lever member 72 is released is performed by the biasing force of the coil spring 75 mentioned above. During the slight movement of the first lever member, the arcuate portions 11d and 12d of the trays 11 and 12 (see FIG. 4, FIG. 5, etc.)
comes into contact with a predetermined arc-shaped contact portion 19c (see FIGS. 6 and 10) formed on the movable chassis A19,
The disk 10 supported on the tray is placed on the disk supporting surface 23a of the turntable 23 (FIG. 11b).
ie directly below the disk carrying surface.

The locking/releasing means described above (consisting of the movable piece 76 etc.) and the first and second lever members 71 and 72
A second lever member 7 includes a coil spring 75 as a biasing means, a moving body 56, a motor 62, etc.
The drive mechanism (described above) for driving the trays 2 constitutes a tray pushing member driving means that rotationally drives the tray projecting member 53 to project the trays 11 and 12 from the magazine body 8.

Further, the tray pushing member driving means, a chassis 16 as a supporting member, and a moving member 18 as a first moving member (a movable chassis A19 and a movable chassis B2
0), a tray pushing member 53, and a tray pushing member moving means consisting of moving plates 37, 38, etc., move the tray 11 or 12 carrying the disc 10 to be played to the magazine main body 8.
A tray projecting means is configured to project from the tray.

As shown in FIG. 10, the left side of the lower surface of the movable member 18 (the movable chassis B20, which is a constituent member of the movable member 18) is
A support body 79 is provided that extends to, and
It is swingably attached to the movable chassis B20 at its left end via a pin 79a. pin 7
9a is the front and back direction (arrow Y direction and the opposite direction)
Therefore, the swinging direction of the support body 79 is in a plane perpendicular to the disk supporting surface 23a of the turntable 23 (see FIG. 11b). A disc-shaped pressing member 80 is rotatably attached to the free end of the support body 79, and the disc-shaped pressing member 80 comes into contact with the surface of the disc 10 opposite to the turntable 23 and cooperates with the turntable to perform a disc clamping action. There is. Further, although not shown, the pressing member 80 is connected to the disk supporting surface 2 of the turntable 23.
A coil spring is provided that biases the support body 79 in the direction approaching 3a.

The above-mentioned support body 79, pressing member 80, etc. constitute a clamp mechanism that clamps the disk.

As shown in FIG. 10, a pin 79c extending forward is protruded from the free end of the support body 79, and the pin engages with the planar guide portion 72e at the rear edge of the upper surface of the second lever member 72. It matches. A tapered portion 72f is formed on the left end portion of the second lever member 72 on an extension of the planar guide portion 72e so as to be engageable with a pin 79c of the support body 79. As is particularly clear from FIG. 17, the tapered portion 72f is inclined toward the left (in the direction of arrow X) and upward (in the direction of arrow Z). That is, as the second lever member 72 moves forward (movement to the right = in the opposite direction of arrow The pin 7 is held in the released position and is pushed along the tapered portion 72f.
By lowering 9c, the pressing member 80 is moved to the clamp position.

The above-described clamp mechanism and the second lever member 72
and the drive mechanism (described above) that drives the second lever member, the disk 10 carried on the tray 11 or 12 that is protruded outside the magazine body 8 by the tray protrusion means described above is moved onto the turntable 23. A disk moving means is constructed which moves in a direction perpendicular to the disk carrying surface (see FIG. 11b). Further, the disk moving means,
The tray projecting means constitutes a disk ejecting and conveying mechanism that sequentially selects arbitrary disks 10 in the magazine 5 and conveys them onto the disk holding surface 23a of the turntable 23. In addition,
The second lever member 72 and the drive mechanism (described above) for driving the second lever member serve as both the tray projecting means and the disk moving means.

As shown in FIGS. 6, 9, and 10, a movable chassis A19 constituting the moving member 18
A plate-shaped disk holding member 83 is disposed so as to be sandwiched between the movable chassis A19 and a plurality of pins 83a protruding from the disk holding member. It is attached to the movable chassis A by movably engaging the groove 19e. As shown in FIG. 11b, the cam groove 19e is formed to be inclined, for example, toward the left (in the direction of arrow X) and upward (in the direction of arrow Z). That is, the cam groove 19e is formed so that when the disc pressing member 83 moves left and right, the disc pressing member 83 moves up and down. As is clear from FIGS. 9 and 10, a projection 83b extending downward is formed on the lower surface of the right rear end of the disk holding member 83, and one end 70e of the rotating intermediate lever 70 (see FIG. 10) ) pushes the right edge of this protrusion 83b, thereby moving the disk holding member to the left (in the direction of arrow X). Incidentally, the disk holding member 83 is applied with a bias force toward the right (in the direction opposite to the arrow X) by a coil spring 84 shown in FIG. 9, for example.

The above-mentioned disk holding member 83 is connected to the disk-supporting surface of a disk that is moved in a direction (vertical direction) perpendicular to the disk-supporting surface 23a (see FIG. 11b) of the turntable 23 by the disk moving means described above. The lower surface thereof is in contact with the opposing surface of the disk, thereby maintaining the parallelism of the disk with respect to the disk supporting surface.

The story goes back and forth, but as shown in FIGS. 6 and 8, a pair of front and rear detection switches 86 and 87 are attached to the inner surface (left surface) of the right elevational portion 16c, which is a part of the chassis 16. It is being Both detection switches 86 and 87 are for detecting the moving position of the moving body 56 driven by the motor 62. As is particularly clear from FIG. 8, each detection switch 86, 87 has actuators 86a, 87a that protrude obliquely from the switch body and swing. A pair of rollers 88 and 89 that are movable only in the vertical direction (in the direction of arrow Z and the opposite direction) with respect to the chassis 16 are engaged with the free ends of these actuators 86a and 87a. 1st
As shown in Figures 6a and 6b, each roller 88, 8
9 engages with a protrusion 56f having a trapezoidal cross section and formed on the lower surface of the front end of the movable body 56 and extending in the front-rear direction. That is, when the movable body 56 moves back and forth by a predetermined distance, the respective rollers 88 and 89 are appropriately moved up and down by the action of the protrusion 56f, thereby operating the respective detection switches 86 and 87. That's what I do. However, the upward movement of the rollers 88, 89 is controlled by the bias force applying means provided in each detection switch 86, 87.
This is done by the bias force applied to a and 87a.

In addition, each of the above-mentioned detection switches 34, 35, 4
Detection signals emitted from the photo sensors 9, 86, and 87 and the photo sensor 51 are transmitted to the aforementioned control unit (not shown), and the motors 27, 45, 6
2 and turntable 23 operate at predetermined timings to be described later.

20 and 21 show a single adapter 90 that is detachable from the magazine mounting portion of the multi-disc player 1 and that accommodates one disk 10 (see FIG. 3) in a replaceable manner. be. Single adapter 9 as shown
0 are a first member 91 and a second member 92 that are movable relative to each other within a predetermined range in a predetermined direction, in this case, the front-rear direction (arrow Y direction and the opposite direction).
and a third member 93. A gear 94 is provided approximately at the center of the second member 92, and
It engages with a rack portion 91a formed on the first member 91 and extending in the front-rear direction. In addition, the third member 9
3 is also formed with a rack part (not shown) that faces the rack part 91a of the first member 91, and the gear 9
4 also meshes with the rack part. First member 91
A lever member 95 is attached to the rear end via a pin 95a.
is swingably attached, and the lever member is biased by a coil spring 96 so that its free end 95b is pressed against the rear end surface of the second member 92. Further, the second member 92 itself is also urged forward (in the direction of arrow Y) by another coil spring 97. That is, the second member 92 is caused to protrude forward with respect to the first member 91 by the actions of the coil springs 96, 97 and the lever member 95, and therefore, the third member 93 is caused to project forward by the actions of the gear 94, the rack portion 91a, etc. It is designed so that it can protrude forward. however,
The protrusion speed of the third member 93 is twice that of the second member 92. As shown in FIG. 21, a locking recess 93a, which is locked by, for example, the locking member 67 shown in FIG. It is formed.

A pin 93c extending upward is provided on the upper surface of the right rear end of the third member 93, and a plate-like tray C98 supporting the disk 10 is attached to the pin hole 93c.
It is swingably attached at point a. Tray C
98 is formed in approximately the same shape as the tray A11 shown in FIG. 4, for example, and the single adapter 9
It is made to protrude from the main body of 0. Note that a cover member 100 is provided on the upper surface of the third member 93 to cover the tray C98.

Here, the single adapter 90 is inserted into the player main body by the detection switches 34 and 35 shown in FIG. It is also detected that the device is attached. However, as shown in FIG. 20, a portion 100a of the cover member 100 that should be engaged with the other swinging end 32b of the push lever 32 (see FIG. 14) for operating the detection switch 35 has been cut off. , the push lever 32 does not swing, and therefore the detection switch 35 does not operate. Therefore, when the left rear end corner of the first member 91 engages with the push lever 33, only the detection switch 34 is operated, and the aforementioned control section considers this to be the completion of the installation of the single adapter.

Although not shown, the single adapter 90 includes a locking mechanism that locks the third member 93 and the second member 92 to the first member 91 when the single adapter is not installed in the player body. is provided. The locked state by this locking mechanism is released when the single adapter 90 is installed in the player body.

Next, the operation of the multi-disc player having the above-mentioned structure will be briefly explained along with the playing procedure with reference to FIGS. 22 to 24.

First, when the disc to be played is designated by operating the operation button group 6 shown in FIG. Start moving backwards (counter to arrow Y direction). Therefore, by the action of the stepped cam grooves 37d, 38d formed in the movable plates 37, 38 and the guide groove 16e formed in the chassis 16, the pin 20c is movably fitted into each groove. Movable chassis B2 that can be moved up and down and has the pin 20c protruding from it.
The moving member 18 including 0 moves up and down. Therefore, the tray pushing member 53 provided on the moving member 18
is the tray 11 carrying the disc to be played.
Alternatively, the engagement position with 12 is reached.

Here, the longitudinal movement and positioning of the movable plate 37, and therefore the vertical movement and positioning of the tray pushing member 53, will be described in detail.

The DCNT signal shown in FIGS. 22 and 23 is a slit detection signal emitted from the photo sensor 51. Further, the DCHM signal is a detection signal emitted from the detection switch 49 that detects that the movable plate 37 is at its most backward movement position (forward movement limit position), that is, the home position.
As shown in FIG. 22, the photo sensor 51
If a movement command is issued while the DCNT signal is being issued, the moving plate 37 is moved by a distance corresponding to the difference between the current address (current DISC) and the desired address (search DISC). Furthermore, if a movement command is received while the photo sensor 51 is not emitting the DCNT signal, the movement plate 37 will be activated by the detection switch 4.
The desired address (search
DISC) position.

In this manner, when the tray pushing member 53 is positioned in the engagement position with the tray carrying the disc to be played, the motor 62 then begins to rotate.
The moving body 56 is driven backward (in the direction opposite to the arrow Y). Therefore, the intermediate lever 70 is rotated counterclockwise in FIG. 10, and the second lever member 72 connected to the intermediate lever is rotated to the right (counterclockwise in FIG.
direction). As shown in Figure 17,
The second lever member 72 is locked with the first lever member 71 by a locking/releasing means comprising a movable piece 76 or the like. Therefore, the first lever member 71 also
It moves to the right together with the lever member 72, thereby rotating the tray pushing member 53, for example, clockwise in FIG. 10. Therefore, as shown in FIG. 24, the tray (for example, tray A11) carrying the disk to be played protrudes from the magazine body 8, and the disk is placed on the disk supporting surface 23a of the turntable 23 (see FIG. 11b). It moves to a concentric position with respect to the disc support surface, that is, to a position directly below the disc carrying surface. However, just before the rotation of the tray push-out member 53 and, therefore, the rightward movement of the first lever member 71 is completed, the locking state of the first and second lever members 71 and 72 by the locking/releasing means is changed. After being released, the slight rightward movement of the first lever member 71 is performed by the biasing force of the coil spring 75, and the arcuate portion 11d (see FIG. 4) of the tray A11 pushed by the biasing force Movable chassis A19
The positioning of the tray is completed by contacting the predetermined arc-shaped contact portion of the tray. The completion of ejection of the tray from the magazine body 8 is detected by a detection signal from a detection switch 87 (see FIG. 8, etc.) which is activated by the movement of the movable body 56.

The second lever member 72, which has been released from the locked state with the first lever member 71, is further driven to the right (in the opposite direction of arrow X), and the tapered portion 72 of the second lever member
Support 7 engaged with 2f by pin 79c
9 swings upward (in the direction of arrow Z). Therefore, the disc is lifted upwards and the turntable 23
clamped against. Note that this upward movement of the disk is shown as DISC/Load in FIG. Further, as the disk moves upward, the disk pressing member 83 also rises together with the disk due to the rotation of the intermediate lever 70.
However, when the loading of the disk onto the turntable is completed, the disk holding member 83 is slightly separated from the disk, and the disk holding member does not interfere with the rotation of the disk.

In this way, it becomes possible to play, and the turntable 23
Then, the carriage 24 (see FIG. 9, etc.) operates to start playing.

When the performance is finished, the disc is stored in the magazine main body 8, but the disc storage operation is performed by following the reverse process of the disc loading operation described above, so a detailed description thereof will not be given. Thereafter, the above operation is repeated according to the designated number of songs.

Incidentally, the ejecting operation of the magazine 5 to the outside of the player body is performed by pressing the button for magazine ejecting among the operation button group 6. When the magazine eject button is pressed, the movable body 56 (for example, see FIG. 16) is moved forward (in the direction of arrow Y) by a predetermined amount, thereby releasing the locked state of the magazine 5 by the locking member 67. be done. Thereafter, the movable body 56 moves further forward, and as a result, the swinging lever 64 shown in FIG. 6 swings about the swinging support 64a and engages with the free end of the swinging lever. The magazine 5 is pushed out of the player body.

Furthermore, the method of using the single adapter 90 is similar to that of the previous embodiment, except that the magazine 5 and the single adapter are replaced. That is, the single adapter 90 is inserted into the insertion port 3a. At this time,
A locking mechanism (not shown) that locks the second member 92 with respect to the first member 91 is released. Here, it is pushed in further against the urging force of the coil springs 96 and 97. Then, the locking member 67 engages with the locking recess 93a provided in the third member 93.

Here, when a performance is instructed, the tray C98 is rotated and the performance is performed as in the case of the magazine 5. Here, when the listener wants to change the disk, he or she operates the same magazine eject button as when using the magazine. As a result, tray C98 is rotated in the opposite direction in the same way as magazine 5,
Subsequently, the locking member 67 is disengaged.
Then, the third member 93 is activated by the coil spring 96,
Tray C is moved forward (in the direction of arrow Y) by the action of 97.
98 protrudes until it is completely exposed to the outside of the main body.
Since the listener completes the disk exchange by simply replacing the disk on the tray with a desired one and pushing in the third member 93, there is no need to remove the single adapter 90 again. In addition, by further pulling out the third member 93 in the protruding state, the single adapter 90 can be removed and replaced with the magazine 5.

Effects of the Invention A housing, a playing means provided in the housing including a pickup and a turntable, and a plurality of plates each capable of supporting a disk on its main surface and arranged so as to protrude and store along each main surface. The magazine includes a magazine having a shaped tray and detachably attached to a predetermined attachment part in the housing, and a disk ejecting and conveying mechanism that sequentially selects arbitrary trays in the magazine and conveys them onto the disk supporting surface of the turntable. , the disk ejecting and conveying mechanism includes a moving member that is movable along the arrangement direction of each of the trays, and a moving member that is disposed on the moving member and engages with each of the trays to move the trays. The tray driving means is configured to protrude from the magazine and to be stored in the magazine, and the positioning means is configured to position the movable member so that the tray driving means faces the tray carrying the disc to be played. It is carried by the moving member.

In other words, the structure is such that the disks can be conveyed in one direction (the disks are conveyed in a direction parallel to the disk-carrying surface of the turntable) by simply protruding the trays each carrying a disk from the magazine body. be. Therefore, a magazine such as an already developed multi-disc player that directly grips a desired disk stored in the magazine by a complicated gripping mechanism at the end or substantially the entire disk in the direction in which the disk projects from the magazine. The structure is simpler than that provided with a disk ejecting and transporting mechanism that can be pulled out, making it easier to downsize the player as a whole and reducing costs.

Further, in the multi-disc player according to the present invention, since the magazine is removably attached to the player housing, the discs can be easily replaced.

Further, in the multi-disc player according to the present invention, playing means including a turntable and a pickup are also mounted on a moving member that carries the tray driving means and moves in the tray arrangement direction. Due to this configuration, the disk can be quickly loaded into the playing means. If anything,
If the playing means is provided on the stationary side rather than on the movable member, in order to convey the disc to be played onto the turntable, the tray carrying the disc can be moved in one direction by protruding out of the magazine. After the disk is moved, it is necessary to move the disk further in the tray arrangement direction perpendicular to the protrusion direction, and moving the disk in two directions like this increases the disk transport time. However, the moving distance of the disks in the tray arrangement direction becomes longer for the disks on the trays located farther from the playing means among the arranged trays. In the multi-disc player according to the present invention, as described above, the playing means is mounted on the moving member together with the tray driving means and moves in the tray arrangement direction, so that the conveyance of the disc to be played onto the turntable is performed by moving the disc to be played onto the turntable. The process is completed simply by protruding the tray holding the disk out of the magazine, which shortens the disk transport time.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the entire multi-disc player according to the present invention, FIGS. 2 to 5 are diagrams for explaining the magazine, FIG. 6 is a plan view of the internal structure of the multi-disc player, and FIG. Figures to Figures 9 and 9 are arrow views, respectively, related to Figure 6.
A view in the direction of the arrows and a view in the direction of the arrows, FIG. 10 is a view in the direction of the arrows related to FIG. 9, and FIGS. 11a to 19b
20 and 21 are partial detailed views of the internal structure.
The figure is for explaining a single adapter, the second
2 and 23 are diagrams for explaining the operation of the multi-disc player, and FIG. 24 is a conceptual diagram of the main parts conceptually showing the main parts of the present invention. Explanation of symbols of main parts, 2...Housing, 3
... Front panel, 5 ... Magazine, 8 ... Magazine body, 10 ... Disk, 11 ... Tray A, 12 ... Tray B, 16 ... Chassis, 16
e... Guide groove, 18... Moving member, 19... Movable chassis A, 19a... Arc-shaped guide surface, 19c...
Arc-shaped predetermined contact portion, 20...Movable chassis B, 20
a...Arc-shaped guide portion, 20e, 20f...Arc-shaped guide groove, 23...Turntable, 23a...Disk supporting surface, 24...Carriage, 27, 45, 6
2...Motor, 30...Tray guide member, 30a
... Tray guide groove, 32, 33 ... Push lever, 34, 35, 49, 86, 87 ... Detection switch, 37, 38 ... Moving plate, 37a, 3
7b, 38a, 38b...Guide groove, 37d, 38
d...Cam groove, 37c, 38e...Straight portion, 3
7f, 38e... Slanted part, 37h... Rack part,
47... Rotating lever, 50... Address plate, 50a... Slit, 51... Photo sensor, 53... Tray pushing member, 53b... Rotating end portion, 56... Moving body, 56a... Rack portion, 64
... Swing lever, 67 ... Lock member, 70 ...
Intermediate lever, 71... First lever member, 72...
Second lever member, 79... Support body, 80... Pressing member, 83... Disk holding member, 90... Single adapter.

Claims (1)

[Scope of Claims] 1. A housing, a playing means provided in the housing including a pickup and a turntable, each of which is capable of supporting a disk on its main surface and arranged so as to protrude and store along each main surface. a magazine having a plurality of plate-shaped trays and detachably mounted on a predetermined mounting portion in the housing; and a disk ejector for sequentially selecting arbitrary trays in the magazine and conveying them onto the disk supporting surface of the turntable. a conveyance mechanism, the disk take-out conveyance mechanism includes a movable member movable along the arrangement direction of each of the trays, and a movable member disposed on the movable member and engaged with one of the trays one by one. tray driving means for causing the tray to protrude from the magazine and storing it in the magazine; and positioning means for positioning the moving member so that the tray driving means faces a tray carrying a disc to be played. . A multi-disc player, wherein the playing means is also carried by the movable member. 2. Claim 1, wherein the positioning means includes a cam member having a stepped cam portion that engages with the moving member, and a driving force applying means that applies a driving force to the cam member. Multi-disc player as described.