JPH039171Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION 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 A joke box is generally known as a disc player that can play a plurality of discs in succession. However, conventional juice boxes were 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. be. Recently, a multi-disc player has been developed that can store a plurality of small DADs (for example, 5 to 6 discs) at any time and is suitable as a home-use joke box for playing these discs continuously. By the way, the playing time of a small DAD is 1 hour, which is about 1.5 hours longer than a conventional analog audio disk.
It can accommodate twice the amount of information. Therefore,
For example, 6 discs can hold approximately 120 songs with a playing time of around 3 minutes.
It is also easy to cover your favorite genres, such as Jiyaz or Enka.

A multi-disc player basically has a performance means including a turntable, a pickup, etc.
The player includes a disk holder that holds a disk and is inserted into a mounting portion in the player housing, and a disk ejecting and conveying mechanism that conveys the disk in the disk holder to a performance position, that is, onto a turntable.

Figures 31 to 34 show multi-disc players that have already been developed.

As shown in FIG. 31, the front panel 203 of the player housing 202 is provided with a rectangular insertion opening 203a for mounting the disc holder 205 into the player housing. Although not shown, the player housing 202 includes performance means including a turntable, a pickup, etc., and a disk holder 20.
A disk ejecting and conveying mechanism is provided for conveying the disks (described later) in 5 to the performance position, that is, onto the turntable.

The insertion port 203a described above 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. The front panel 203 is also provided with a group of operation buttons 206 and a display section 207 for operating the multi-disc player.

As shown in FIGS. 32 and 33a and 33b, the disk holder 205 is generally formed in the shape of a flat rectangular parallelepiped, and holds, for example, six disks 208. The disks 208 are sequentially arranged and housed at predetermined pitches in a direction perpendicular to the disk supporting surface of the turntable, in this case, in the vertical direction (direction of arrow Z and the opposite direction).

A linear guide groove 205a is formed at the right end of the lower surface of the disc holder 205 along the mounting direction to the disc holder mounting portion within the player housing 202. On the other hand, as shown in FIGS. 31 and 32, the linear guide groove 205 is provided in the disc holder mounting portion in the player housing 202
A linear protrusion 202a is provided which engages with a. As shown in FIG. 32, a tongue-shaped guide plate 210 is provided inside the player housing 202 so as to face the linear protrusion 202a. The front end of the guide plate 210 is formed with an inclined portion 210a that is inclined toward the linear protrusion 202a in the mounting direction of the disk holder 205 to the disk holder mounting portion (backward = direction opposite to arrow Y). ing.

The above-described linear guide groove 205a, linear protrusion 202a, and tongue-shaped guide plate 210 constitute a guide means for guiding the disk holder 205 to the mounting position.

As described above, the disk holder 205 is formed in the shape of a rectangular parallelepiped, and can be attached to the disk holder attachment portion even if the attachment posture is incorrect, such as upside down. The linear guide groove 205a and the linear protrusion 202a described above serve to prevent mounting when the mounting posture is incorrect. That is, when the disk holder 205 is upside down, the rear upper edge 205b (illustrated in FIG. 32) of the disk holder is aligned with the linear projection 20.
It comes into contact with the front end of 2a and is prevented from being attached.

However, even if the mounting posture of the disk holder 205 is incorrect, if the mounting force is abnormally large, the third
As shown in FIG. 4, a bottom plate 202b and a tongue-shaped guide plate 21 are provided with linear protrusions 202a.
0 are bent in the directions of arrows F and G, respectively, and can be attached with difficulty. In this way, the disk holder 205
If the disk ejecting and transporting mechanism is operated with the disk not being installed in the correct posture, not only will disk loading be impossible, but there is also concern that various parts of the mechanism may be damaged.

Summary of the invention The present invention has been made in view of the above points, and its purpose is to provide a multi-disc player that can prevent the disc holder from being erroneously attached to the player body.

The multi-disc player according to the present invention has a linear guide groove formed on one main surface of a disk holder formed in a substantially rectangular parallelepiped shape along the direction of attachment to the disk holder attachment part, and a linear guide groove provided in the player housing. The disk holder includes a disk holder guide means consisting of a linear protrusion that engages with the linear guide groove, and the other main surface of the disk holder includes a disk holder guide means that can engage with the linear protrusion and has a total length that is longer than the overall length of the guide groove. Another feature is that another linear guide groove, which is also smaller, is formed.

Embodiments 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.

As shown in FIG. 1, the front panel 3 of the player housing 2 is provided with a rectangular opening 3a for mounting a magazine 5 as a disk holder inside the player 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. 2a to 2c, the magazine 5 includes a magazine body 8 as a generally flat rectangular parallelepiped housing, and a disk 1 on each main surface.
It has a total of six rectangular plate-shaped trays A11 and tray B12, two types of three trays each carrying 0. Tray A11 and tray B12, and therefore each disk 10, are arranged in order at a predetermined pitch in a direction perpendicular to a disk supporting surface of a turntable, which will be described later, in this case, in an up-down direction (arrow Z direction and the opposite direction). It is stored. Tray A
11 and tray B12 are provided rotatably around a rotation support shaft 8a provided at the right rear end of the magazine main body 8 and extending in the arrangement direction (vertical direction) of the respective trays. It can be protruded and stored along each main surface.

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

The magazine body 8 has seven partition walls 8 arranged in the vertical direction (arrow Z direction and the opposite direction).
b is provided, and tray A11 and tray B
12 is arranged between each partition wall. Figure 3a
As is clear from the figure, small circular openings 8c are concentrically formed in each partition wall 8b in the vicinity of the rotation support shaft 8a. Figures 4a, b and 5
Figures a and b show details of tray A11 and tray B12, and as shown in both figures, each tray also has an opening that can face the opening 8c formed in each partition wall 8b. Portions 11a and 12a are formed. Here, the opening 8c formed in the partition wall 8b is referred to as a first opening, and on the other hand,
Openings 11a and 12a provided in tray A11 and tray B12 are referred to as second openings. Inside each of these openings 8c, 11a and 12a, each partition wall 8b is arranged side by side (arrow Z direction and the opposite direction).
Five spherical movable pieces 13a that can move along are inserted. The diameter of each spherical movable piece 13a is equal to the arrangement pitch dimension of each tray 11, 12 arranged alternately. Each of the spherical movable pieces is connected to a pair of leaf springs 13b disposed at the upper and lower ends of the magazine body 8.
are urged toward each other by the

As shown in FIG. 2b, a press lever 14 is provided at the front left end of the magazine body 8 and extends substantially in the front-rear direction (in the direction of arrow Y and the opposite direction), and one end thereof In this case, the front end portion is swingably attached to the magazine body 8 via a pin 14a. However, the pin 14a extends in the vertical direction (arrow Z direction and the opposite direction). The other end, ie, the rear end, of the pressing lever 14 can smoothly engage the free end of each tray 11 and 12. A spring member 14 is attached to the pressing lever 14.
b is engaged. This spring member 14b urges the pressing lever 14 in the counterclockwise direction in FIG. 2b, thereby applying a tray pressing force to the pressing lever. The pressing lever 14 is formed with a protrusion 14c that can come into contact with the edge 3b of the opening 3a of the player housing 2 when the magazine 5 is removed from the magazine mounting portion in the player housing 2. This protrusion 14c comes into contact with the edge 3b of the opening 3a, so that each tray 11 and 1
The main body of the pressing lever 14 is swung so as to bias the magazine 2 toward the storage position within the magazine main body 8.

The above-mentioned pressing lever 14 and spring member 14b push each tray 11 and 12 into the magazine main body 8.
A pressing means for pressing toward the storage position inside and the rotation support shaft 8a is configured. Further, the pressing means, the openings 8c (first openings) formed in each partition wall of the magazine main body 8, and the respective trays 11 and 12
openings 11a and 12a (second openings) formed respectively in , each spherical movable piece 13a, and a leaf spring 13b.
A holding mechanism for holding each of the trays 11 and 12 at a storage position within the magazine body 8 is configured.

As is clear from FIGS. 4 a, b and 5 a, b, the tray A11 and the tray B12 have almost the same shape, and there is a claw portion on which the listener puts his or her fingertip when pulling out each tray from the magazine body 8. 11b, 12
The only difference is the shape of b and its position. The free ends of each tray 11 and 12 have notches 11c and 12c in which the above-described pressing lever 14 engages, and a pair of jig insertion holes 11d, 11e, 12d, and 12e.
is formed.

Furthermore, flexible members 11f and 12f made of synthetic leather or the like are provided at predetermined positions on the main surfaces of adjacent trays that can face the disk supporting surfaces of each tray 11 and 12 so as to protrude beyond the main surfaces. Also,
Each of the trays 11 and 12 is provided with arcuate recesses 11h, 11i, 12h, and 12i along the movement locus of the flexible members 11f and 12f provided in the adjacent trays. These recesses 11h, 11i, 12h
By providing the trays 11 and 12i, the size of the total of six trays 11 and 12 stacked on top of each other in the stacking direction can be kept small. That is, magazine 5
The overall design is designed to be thinner.

As shown in FIG. 2c, an engaging pawl 5a is provided approximately at the center of the right side of the magazine 5, and the engaging pawl 5a is attached to the magazine body 8 by a pin 5b so that it can freely swing within a predetermined range at one end. is attached to. In addition, another engaging pawl 5 is provided at the front end of the right side of the magazine 5.
c is provided at one end so as to be swingable within a predetermined range via a pin 5d. This engaging claw 5c has its free end urged outward by a coil spring 5e. Each of these engaging claws 5a and 5c
can engage with its free end an edge 3b of the opening 3a (see FIGS. 1 and 2b).

The player housing 2
A mounting prevention means is configured to prevent the magazine 5 from being mounted when the mounting position of the magazine 5 with respect to the mounting portion inside the magazine 5 is incorrect. That is, when trying to attach the magazine 5 to the mounting part in an upside-down state, the engaging claw 5a swings due to its own weight and protrudes outward from the magazine 5, and the free end of the engaging claw opens. Part 3a
It engages with the edge 3b (described above) and prevents the magazine 5 from being mounted. In addition, when trying to attach the magazine 5 to the above mounting part with the front and back reversed,
The engaging pawl 5c projected outward by the coil spring 5e engages with the edge 3b of the opening 3a, thereby preventing the magazine 5 from being installed.

Furthermore, by constructing the mounting prevention means using extremely simple members such as the engaging claws 5a, 5c and the coil spring 5e, the construction is simple and costs can be easily reduced.

As shown in FIGS. 2b and 3b, a circular opening 14e is formed in the protrusion 14c of the pressing lever 14, which is swingably provided in the magazine 5. On the other hand, as shown in FIG. 3b, the magazine body 8, which is the housing of the magazine 5, is provided with a projecting portion 8d extending along the lower surface of the pressing lever 14, and a columnar projection 8d is provided on the projecting portion. 8e is formed. A circular recess 8f is formed at the upper end of the protrusion 8d, and a spherical movable piece 8g is mounted in the recess in the vertical direction (the direction of arrow Z and the opposite direction).
It is movably inserted in the The opening 14e formed in the protrusion 14c of the pressing lever 14 can face the recess 8f when the pressing lever is in the position shown by the solid line in FIG. 2b, and the spherical movable piece 8g
A portion thereof can fit into this opening 14e.

The above-mentioned pressing lever 14 and movable piece 8g constitute a protrusion regulating means for regulating the protrusion of each tray 11 and 12 from the magazine body 8 when the magazine 5, which is a disk holder, is in an upside-down position. ing. That is, when the magazine 5 is in an upside-down state, the spherical movable piece 8g moves due to its own weight and a part of the movable piece fits into the opening 14e of the press lever.
4 is regulated, so that each tray 11, 12
The protrusion of the magazine body 8 to the outside of the magazine body 8 is restricted.

Note that by configuring the protrusion regulating means with members having simple shapes such as the pressing lever 14 and the movable piece 8g, the structure is simple and costs can be easily reduced. Furthermore, regarding the 8 g of spherical movable pieces, commercially available ones can be used without specially manufacturing them.

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 A pair of vertical surfaces 16b and 1 extending in the direction (arrow Z direction and the opposite direction, that is, the arrangement direction of the trays)
It consists of 6c.

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, 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 paths of the magazine body 8 are 8i and 8j in FIG. 2b,
Although not shown, a plurality of guide grooves are formed similarly to the above-mentioned guide groove 30a.

As shown in FIGS. 6, 10, and 14, a support body 32 made of resin is arranged near the magazine mounting section in the player housing 2, in this case, on the right side of the magazine mounting section. and is fixed to the lower surface of the flat portion 16a of the chassis 16 with screws or the like. Details of this support 32 are shown in FIGS. 15a to 15c. As shown in FIG. 14, a moving lever 33 made of a steel plate is attached to the upper surface of the support 32 so as to be movable along the magazine mounting direction, that is, the front-rear direction (arrow Y direction and the opposite direction). . Details of the moving lever 33 are shown in FIGS. 16a and 16b. As is clear from FIGS. 15a to 15c and FIGS. 16a and 16b, the movable lever 33 has a pair of linear openings 33a formed in the movable lever extending in the front-rear direction. Letter-shaped protrusion 32a
The support is attached to the support by a slidable fit. As shown in Figure 17,
A projection 32b is provided on the upper surface of the support body 32 for smoothly abutting against the lower surface of the moving lever 33 to support the moving lever.
is installed protrudingly.

1 extending downward at the left rear end of the moving lever 33
Two overhanging portions 33b are formed, and the support body 32
The projecting portion is slidably engaged in a linear groove 32c extending in the front-rear direction and formed on the upper surface of the left rear end portion of the vehicle. However, there is a protrusion 3 on the left side of the overhang 33b.
3c is formed, and the protrusion forms a linear groove 32c.
It is in smooth contact with the left wall inside. Furthermore, two protruding parts 33d and 33e are formed at the right front end of the moving lever 33 and extend downward and are spaced apart in the front-rear direction (arrow Y direction and the opposite direction), and the right front end of the support body 32 The projecting portions 33d and 33e are slidably engaged with two linear openings 32d and 32e extending in the front-rear direction. A projection 33f is formed on the right side surface of the projecting portion 33d, and smoothly contacts the right wall surface within the linear opening 32d.

As is clear from FIGS. 16a and 16b, the rear end of the moving lever 33 has a magazine 5 extending downwardly.
A projecting portion 33g is provided to which the rear end portion can engage. That is, when the rear end of the magazine 5 engages with the projecting portion 33g, the moving lever 33 is moved rearward. Further, a coil spring 33h is connected to the movable plate 33 to apply a bias force toward the front (in the direction of arrow Y) to the movable plate.

As shown in FIGS. 14 and 16a and b, below the movable lever 33, projecting portions 33d and 33e of the movable lever that move back and forth engage with actuators 34a and 35a thereof. A pair of detection switches 34 and 35 are provided to operate each actuator.
is located.

The above-described moving lever 33 and the detection switch 34
and 35 constitute a magazine attachment detection means for detecting that the magazine 5 is attached to the magazine attachment portion in the player housing 2.

As shown in FIG. 17, burrs 33i generated when forming the linear openings by punching remain on the edges of the pair of linear openings 33a formed in the moving lever 33. However, since the moving lever 33 is attached to the support body 32 as described above, the burr does not come into contact with the support body 32.

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 in 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.
Further, each cam groove 37d, 38d has six linear portions 37e, 38e extending in the moving direction (front-back direction) of the moving plates 37, 38, and is continuous with and relative to each linear portion. Slanted 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 portion 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, the left and right moving plates 37 and 3
Between 8 and 8 is a rotary lever rotatably attached to the flat part 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). 47, and both ends of the rotating lever 47 are pivotally attached to left and right moving plates 37, 38.

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 in the player 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 photo sensor 51, which is the second sensor, 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 protruding member 53 is provided for engaging one of the two trays and protruding each tray to the outside of the magazine body 8. FIG. 18 shows details of the tray protruding member 53. As is clear from FIG. 18, the tray protrusion member 53 is formed in a generally L-shape as a whole, and two arcuate guide grooves 20 of different radii are formed in the movable chassis B20.
e and 20f (for example, see FIG. 12), a pair of pins 53a protruding from the tray protruding member are movably engaged and guided. That is,
The tray protruding member 53 is connected to each arcuate guide groove 20e, 20.
It rotates about the center of curvature f as a rotation axis, and pushes the trays 11 and 12 with its rotating end 53b to make them protrude from the magazine body 8. In addition, the second
As is clear from FIG. 6 and FIG.
The positions of a are made to match. In addition, each tray 11 and 12 has an area 11 near its rotation support shaft 8a.
k and 12k (see FIG. 2b, FIG. 4a, and FIG. 5a) are pushed by the tray protruding member 53 to protrude to the outside of the magazine body 8.

The tray protruding member 53 is made of relatively soft resin, and the rotating end 53b of the tray protruding member is flexible in the vertical direction, that is, in the arrangement direction of each tray 11, 12, and has a small amount of play in the vertical direction. is held. Therefore, when a portion of the rotating end 53b of the tray protruding member 53 fits into the tray guide path (described above) of the magazine body 8, the rotating end moves along the tray guide path due to its flexibility. I'm starting to do that. In addition, the tray protruding member 53
When the rotating end portion 53b is not in operation, it engages with the Y-shaped groove 20g (shown in FIG. 10) of the movable chassis B20, and its movement in the Z direction (upward) is restricted.

In addition, since the tray protrusion member 53 is provided on the movable chassis B20, which is a component of the moving member 18, the above-mentioned moving member moving means (consisting of the moving plates 37, 38, etc.) and the address plate 50, etc. The tray (11) carrying the disc 10 to be played is
or 12) in a position where it engages with the tray protruding member 5.
A tray protruding member moving means for moving the tray protruding member 3 together with the moving member 18 is configured.

Next, a tray protrusion member 53 is used to make each of the trays 11 and 12 protrude from the magazine body 8.
The tray protruding member driving means for rotationally driving the tray protruding 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. 19a and 19b. 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 and a small pulley 61 to the output shaft of a motor 62 which is a torque generating means. These double gears 57, gears 58, and pulleys 59
, belt 60 , small pulley 61 , and motor 62
A driving force applying means for applying a driving force to the movable body 56 is constituted by these and related peripheral small members.

As shown in FIGS. 10 and 13, near the deepest part of the magazine mounting part in the player housing 2, there is a hole for allowing the magazine 5 mounted in the magazine mounting part to protrude outside the magazine mounting part. The swing lever 64 is arranged to extend substantially in the left-right direction, and is swingably attached to the lower surface of the guide holding member 29 via a pin 64a at a substantially central portion thereof. However, the pin 64a extends in the vertical direction (arrow Z direction and the opposite direction).
As is clear from FIG. 13, the right end of the swing lever 64 is provided with a projecting portion 64b extending upward, and the swing lever 64 is attached to the rear end of the magazine 5 at the projecting portion. come into contact with Further, a gear portion 64c having the pin 64a as the center of curvature is formed at the left end portion of the swing lever 64, and a braking gear 65a of the damper 65 meshes with this gear portion 64c. The damper 65 applies braking force using the viscous resistance of a viscous agent such as grease held therein. Note that the swing lever 64 is given magazine protruding force by a coil spring 64d.

The above-mentioned swing lever 64, damper 65, and coil spring 64d constitute a protruding means for protruding the magazine 5 from the magazine mounting portion in the player housing 2 to the outside. In addition, as is clear from FIG. 13, the swing lever 6
θ is the angle between a straight line 66a connecting the pivot center (pin 64a) of the pivot lever 4 and the engagement point (projection 64b) of the pivot lever with the magazine 5, and a straight line 66b passing through the center of the coil spring 64d. Then, the coil spring 64d is stretched so that θ is always an acute angle regardless of the swing angle position of the swing lever 64. With this configuration, the magazine protrusion force that the coil spring 64d applies to the swing lever 64 is always approximately constant regardless of the swing angle position of the swing lever 64.

As shown in FIG. 19a, near the movable body 56, one end 67a of the rotating body engages with the locking recess 5g of the magazine 5 (see FIGS. 2b and 2c), thereby locking the magazine. A locking member 67 for locking the player housing 2 in the installed position is rotatably provided around a pin 67b.
The position of the locking member 67 shown in FIG.
The position where the rotating end 67a is released from the locking recess 5g of the magazine 5 by rotating by a predetermined angle in the counterclockwise direction in FIG. . The locking member 67 is biased by a spring member (not shown) so that the rotating end 67a fits into the locking recess 5g of the magazine 5. 19th
As shown in FIG. b, a pin 56b is protruded from a predetermined position on the upper surface of the moving body 56, and a tapered portion 67d is formed at the other rotating end of the locking member 67.
can be engaged with this pin. That is,
The locked state of the magazine 5 by the lock mechanism consisting of the lock member 67 and the spring member (not shown) is released by the forward movement of the movable body 56. Lock member 6
7 has a bent portion 67e extending substantially to the left at the other end of rotation.
is provided, and the locking member is connected to the above-mentioned second
When at or near the position, the bent portion 67e engages with the pin 56b of the movable body 56, thereby restricting the backward movement of the movable member.

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. 20 and 21, a first lever member 71 extending in the left-right direction is provided 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. 22a and 22b. For example, as shown in FIG. 10, a pin 70c is protruded from the other rotating end of the intermediate lever 70, and the pin is formed at the right end of the second lever member 72 and extends in the front-rear direction. It is slidably fitted into the elongated hole 72a. That is, when the movable body 56 reciprocates back and forth (in the direction of arrow Y and the opposite direction), the intermediate lever 70 rotates about the pin 70a, thereby causing the second lever member 72 to move left and right (in the direction of arrow X and the opposite direction). It is designed to reciprocate in the opposite direction. The above-mentioned moving body 56,
A driving force applying means (described above) that applies driving force to the movable body 56 including the motor 62 and the like, and an intermediate lever 70
A drive mechanism for driving the second lever member 72 is constituted by these and related small peripheral members. The first lever member 71 engages with the tray protrusion member 53 at its right end, and its forward movement (movement to the right) rotates the tray protrusion member. In addition, the second lever member 72
is for moving a support body (described later) which is a component of a clamp mechanism to be described later.

As shown in FIGS. 10, 20, and 21, the first lever member 71 has a mechanism for urging the first lever member in its forward movement direction, that is, to the right (counter to the direction of arrow X). One end of a coil spring 75 serving as a biasing means is connected. The coil spring 75 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.

As shown in FIG. 20, movable chassis B2
A first recess 20h extending in the left-right direction (direction of arrow is formed. The first lever member 7 is positioned 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. 20, 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 dimension indicated by db in FIG.
h and the bottom of the second recess 72c that faces 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 reaches the vicinity of the most forward position (that is, the position where the tray protruding member 53 rotated by the first lever member completely protrudes the trays 11 and 12 from the magazine body 8), the locked state is released. A lock/release means is configured. 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 11 of the trays 11 and 12
m, 12 m (see Fig. 4 a, Fig. 5 a, etc.) is an arc-shaped predetermined contact portion 19 formed on the movable chassis A19.
c (see FIGS. 6 and 10), and the disk 10 supported on the tray is brought into contact with the disk supporting surface 23a of the turntable 23 (see FIG. 11b).
ie, positioned 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) that drives the trays 2 constitutes a tray protrusion member driving means that rotationally drives the tray protrusion member 53 (shown in FIG. 18) to cause the trays 11 and 12 to protrude from the magazine body 8.

Further, the tray protruding 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 protrusion member 53, and a tray protrusion member moving means consisting of moving plates 37, 38, etc., to cause the tray 11 or 12 carrying the disc 10 to be played to protrude from the magazine body 8. A protruding means is configured.

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 plate-shaped support body 79 is provided that extends to
Further, it is swingably attached to the movable chassis B20 at its left end via a pin 79a.
The pin 79a extends in the front-rear direction (arrow Y direction and the opposite direction), and therefore, the swing direction of the support body 79 is aligned with the disk supporting surface 23 of the turntable 23.
a (see FIG. 11b) in a plane perpendicular to point a (see FIG. 11b). At the free end of the support 79 is a disk 10.
A disc-shaped pressing member 80 is rotatably attached to the surface opposite to the turntable 23 and cooperates with the turntable to perform a disk clamping action. Although not shown, a coil spring is provided that biases the support body 79 in a direction in which the pressing member 80 approaches the disk supporting surface 23a of the turntable 23.

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. 20, 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 79 is held in the release position and is pushed along the tapered portion 72f.
By lowering c, the pressing member 80 is moved to the clamp position.

Here, the shapes of the turntable 23 and the pressing member 80 will be described in detail.

As shown in FIG. 23, an annular projection 23c is formed on the outer periphery of the disc-shaped turntable 23 and extends around the entire circumference of the turntable.
It carries 0. On the other hand, an annular projection 80a that contacts the main surface of the disk 10 is also formed on the outer periphery of a disk-shaped pressing member 80, which is a main member of the clamp mechanism and performs a disk clamping action in cooperation with the turntable 23. Annular protrusion 80a of pressing member 80
The diameter of the annular projection 23c of the turntable 23 is smaller than that of the annular projection 23c. As described above, the pressing member 80 is rotatably supported by the support member 79 which is movable with respect to the turntable 23 via the spherical bearing member 80b. A cylindrical guide portion 23d protrudes from the center of rotation of the turntable 23 and fits into the center hole of the disk 10 to position the disk relative to the turntable. Further, a projection 80c is formed at the center of rotation of the pressing member 80 to fit into the guide portion 23d and to center the pressing member 80 with respect to the turntable 23.

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. in a direction perpendicular to the disk supporting surface 23a (see FIG. 11b), in this case upward (arrow Z
A disk moving means is configured to move the disk in the direction (direction). Further, the disk moving means and the tray projecting means constitute a disk ejecting and conveying mechanism that sequentially selects any disk 10 in the magazine 5 and conveys it onto the disk supporting surface 23a of the turntable 23. . 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 of the disk 1 is brought into contact with the opposing surface of the disk 1, so that the disk 1
This is to maintain parallelism of 0.

A rear end portion of the disk holding member 83 is disposed near the movement locus of each tray 11, 12 protruding from the magazine body 8, and is arranged to hold the disk 1 from the tray.
A disk detachment prevention portion 83d is provided to prevent the disk 0 from detaching.

The story goes back and forth, but for example, as shown in FIGS. 6 and 8, there is a pair of front and rear detection switches 86, 87 on the inner surface (left surface) of the right elevational portion 16c, which is a part of the chassis 16. is installed. 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 with respect to the switch body and swing.
have. A pair of rollers 88 and 89 are provided on a support 32 (see FIG. 15, etc.) fixed to the chassis 16 so as to be movable only in the vertical direction (in the direction of arrow Z and the opposite direction). , 87a.
As shown in FIGS. 19a and 19b, each roller 8
8 and 89 are engaged 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, by moving the movable body 56 back and forth by a predetermined distance, the protrusion 56f
The rollers 88 and 89 are moved up and down as appropriate, thereby operating the detection switches 86 and 87. However, rollers 88, 8
9 is moved upward by each detection switch 86, 87.
This is achieved by a bias force applied to each actuator 86a, 87a by a bias force applying means such as a spring provided therein.

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.

24 to 26 show a single adapter 90, which is a disk holder for one disk, which is detachable from the magazine mounting portion of the multi-disc player 1 and stores one disk 10 in a replaceable manner. It is something. As shown in the figure, the single adapter 90 is formed into a rectangular parallelepiped shape as a whole, and includes a first member 91 that is directly mounted in the magazine mounting section, and a magazine mounting section of the first member to the first member. The second member 92 is slidable within a predetermined range along the direction of attachment to the disk and supports the disk. The first member 91 includes a rectangular plate-shaped bottom plate 93 and a second member 9 together with the bottom plate.
2 and a top plate 94 having a semicircular notch 94a formed at the front end with a radius of curvature slightly larger than the radius of the disk 10. Further, the second member 92 is the first member 91
A sliding plate 95 that is slidably attached to the bottom plate 93 of the sliding plate, and a tray C96 that supports the disk 10 and is rotatable around a pin 95a protruding from the right rear end of the sliding plate. Become.

A circular disk supporting surface 10a having a diameter slightly larger than the diameter of the disk 10 is formed on the tray C96, which is a component of the second member 92. As is clear from FIG. 24, the second member 92 is attached to the first
When moving relative to member 91, the arcs of circular disk carrying surface 96a and semicircular notch 94a coincide. Note that the dimension indicated by dc in FIG. 24, that is, the circular disk supporting surface 96
The gap between a and the top plate 94 is larger than the thickness of the disk 10 and smaller than twice the thickness. This configuration prevents double insertion of disks into the single adapter 90.

As shown in FIG. 27, a projecting portion 9 formed on a sliding plate 95 that is a component of the second member 92
A plurality of steel balls 95c attached to the first member 91 are in smooth contact with the upper surface of the bottom plate 93, which is a component of the first member 91. A linear guide groove 93c extending in the front-rear direction is formed in the center of the bottom plate 93, and a pin 95 protruding from the lower surface of the sliding plate 95 is formed in the center of the bottom plate 93.
The sliding plate is guided by sliding in the guide groove.

A plate spring 93d made of a steel plate is disposed at a position sandwiching the above-mentioned overhang 95b together with the steel ball 95c, and is attached to the main body of the bottom plate 93 with screws 93e. This plate spring 93d is the bottom plate 93
form part of Note that the bottom plate 93 is made of resin except for the plate spring 93d, and the sliding plate 95 is made of steel balls 9.
All parts except 5c are made of resin. That is, one of the sliding contact portions of the first and second members 91 and 92 is made of resin, and the other is made of metal.

As shown in FIG. 25, a rail portion 93g extending parallel to the linear guide groove 93c is formed on the bottom plate 93, and a slider 97a made of a steel plate is movably attached to this rail portion 93g. A coil spring 97b is installed between the rear end of the slider 97a and the front end of the bottom plate 93. This coil spring 97b applies a forward moving force to the second member 92 including the sliding plate 95. A damper 98 having a braking gear 98a is attached to the slider 97a with a screw, and a rack portion 95e formed on the sliding plate 95 extending in the front-rear direction is connected to the braking gear 98a.
It meshes with. The braking gear 98a also includes a rack portion 9 formed on the bottom plate 93 and extending in the front-rear direction.
It meshes with 3h. The damper 98 applies braking force by utilizing the viscous resistance of a viscous agent such as grease held therein.

As shown in FIG. 25, a pressing lever 101 is provided at the front left end of the sliding plate 95 in the approximately front-back direction (arrow Y
and the opposite direction), and is swingably attached to the sliding plate 95 via a pin 95f at its front end.
However, the pin 95f extends in the vertical direction (arrow Z direction and the opposite direction). Press lever 1
The rear end of the tray C96 can be smoothly engaged with a notch 96b formed in the free end of the tray C96. A spring member 101a is engaged with the pressing lever 101 to apply a tray pressing force to the pressing lever. By these pressing lever 101 and spring member 101a,
A holding mechanism is configured to hold the tray C96 at the storage position within the sliding plate 95.

As shown in FIG. 25, a locking member 103 is arranged at the right end of the bottom plate 93, and a substantially central portion of the locking member is arranged to protrude in the left-right direction (in the direction of arrow X and the opposite direction). A pair of pins 103a formed in the bottom plate 93 are swingably attached to the bottom plate by fitting smoothly into the bearing portion 93j of the bottom plate 93. One swinging end of the locking member 103, in this case the rear end 103b, is connected to the lower surface of a linear guide portion 95h extending in the front-rear direction on the lower surface of the sliding plate 95, and to the front end 95i of the locking member 103.
can be engaged with. The locking member 103 is biased by a coil spring 104 so that the rear end 103b of the locking member approaches this linear guide.

The lock member 103 and coil spring 104 described above allow the second member 92 including the sliding plate 95 to
A locking means for locking the first member 91 including the bottom plate 93 is configured. That is, the rear end portion 103b of the locking member 103 biased by the coil spring 104 is connected to the linear guide portion 95.
The forward movement of the second member 92 relative to the first member 91 is restricted by engaging with the front end 95i of the second member 95i.

A lever member 103c for releasing the locked state is integrally provided at the other swinging end of the lock member 103, that is, the front end. As shown in FIG. 26, this lever member 103c is made to protrude outward from the single adapter 90, and when the single adapter is attached to the attachment part in the player housing 2, the lever member 103c It is adapted to engage with the front end of a guide rail 2a (shown in the first diagram) provided within the mounting section. By engaging the lever member 103c with the front end of the guide rail 2a,
The locking member 103 is swung so that the rear end 103b is separated from the front end 95i of the guide portion 95h of the sliding plate 95, thereby releasing the locked state by the locking means.

As shown in FIG. 26, a linear guide groove 93l that engages with the guide rail 2a (shown in the first figure) and guides the single adapter 90 is formed on the lower surface of the bottom plate 93, and a lever member 103c is formed.
is positioned within this guide groove 93l.
That is, the lever member 103c is provided inward from the surface of the bottom plate 93, which is the housing of the single adapter 90. By doing so, even if the listener carelessly places the single adapter on a desk or the like, the lever member 103c will not engage with the placing surface, and the locking means will not engage the single adapter. The locked state of the second member 92 relative to the first member 91 is maintained.

As shown in FIG. 25, locking member 103
A manual release button 103e for manually releasing the locked state of the second member 92 to the first member 91 by the locking means is provided integrally with the lever member 103c at the front end of the lever member 103c. Second
As shown in Figure 6, the manual release button 103e
is exposed outside the single adapter through an opening formed in the bottom plate 93, so that the manual release button can be pressed with a finger or the like. Further, the pressed surface of the manual release button 103e is aligned with the surface of the bottom plate 93 or is positioned inward from this surface. By doing so, even if the listener carelessly places the single adapter 90 on a desk or the like, the manual release button 103e will not be pressed by the placement surface, and the locking means will not be pressed. Therefore, the locked state of the second member 92 with respect to the first member 91 is maintained.

As shown in FIGS. 24 and 25, the aforementioned guide rail 2a (shown in the first figure) is attached to the left rear end of the top plate 94, which is a component of the single adapter 90.
The entire length of the guide groove 93l is linear and can be engaged with the guide groove 93l.
Another linear guide groove 94c is formed which is smaller than the full length of (shown in Figure 26). That is, the single adapter 9 is attached to the mounting part inside the player housing 2.
When the single adapter 90 is inserted and installed in the correct position, it engages with the longer linear guide groove 93l and the single adapter is installed smoothly. If this is not correct, the linear guide groove 94c in the above-mentioned manner will engage with the guide rail 2a, and the insertion and mounting of the single adapter will be blocked midway.

As shown in FIG. 25, the right side surface of the sliding plate 95, which is a component of the single adapter 90, has an engagement into which the rotating end 67a of the locking member 67 shown in FIG. 19a can be fitted. A locking recess 95k is formed.

As shown in FIG.
When the second member 91 is moved relative to the first member 91 in order to place the player housing 2, the first member 91 is also made to protrude outside the magazine mounting section in the player housing 2. However, the movement of the second member 92 relative to the first member 91 is performed by a coil spring 97b, and the protrusion of the first member 91 from the mounting portion is caused by the swing lever 64 and coil spring 64d shown in FIG. 10, for example. It will be done. In addition, the first
The locking of the member 91 and the second member 92 within the magazine mounting portion is performed by a locking member 67 shown in FIG. 19a.

As is clear from FIG. 28, the amount by which the first member 91 is made to protrude from the mounting portion (for example, 50
mm) and the amount of movement of the second member 92 relative to the first member 91 (for example, 75 mm) (125 mm) is slightly larger (5 mm) than the diameter of the disk 10 (120 mm). With this configuration, the dimension indicated by U in FIG. 28, that is, the second member protrudes from the mounting portion in order to attach and detach the disk 10 to and from the second member 92 (tray C96 thereof). 1st time when
The overlapping dimension of the member 91 and the second member 92 is relatively large.

Note that the storage position of one disk 10 in the single adapter 90 described above corresponds to the position of the approximately central disk among the six disks stored in the magazine 5 (see FIGS. 1 to 5). It is being done as much as possible. As a result, the disk loading state for the single adapter 90 is stabilized, and
A beautiful appearance can be obtained when the first and second members 91 and 92 protrude outside the magazine mounting portion.

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. Specifically, an overhang 33g formed on the moving lever 33 for operating the detection switches 34, 35
A recess is formed in the portion of the single adapter 90 that is to be brought into contact with the magazine 5 (the rear end of the magazine 5 is brought into contact with this). With this configuration, when the single adapter 90 is attached and when the magazine 5 is attached, the amount of movement of the moving lever 33 changes, and the on/off state of each detection switch 34, 35 changes. It is determined which of the adapter 90 and the magazine 5 is attached.

Next, the operation of the multi-disc player configured as described above will be briefly explained along with the playing procedure with reference to FIGS. 29 and 30.

First, when the disc to be played is designated by operating the operation button group 6 shown in FIG. Alternatively, it starts moving backward (in the opposite direction of arrow Y). 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 protruding member 53 provided on the moving member 18
is tray 1 carrying the disc to be played.
1 or 12 is reached.

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

The DCNT signal shown in FIGS. 29 and 30 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. 29, 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 way, when the tray projecting member 53 is positioned at the engagement position with the tray carrying the disc to be played, the motor 62 then starts rotating and the movable body 56 is driven backward (in the direction opposite to the arrow Y direction). be done. Therefore, the intermediate lever 70 is rotated counterclockwise in FIG. 10, and the second lever member 72 connected to the intermediate lever moves rightward (counterclockwise in the direction of arrow X). As shown in FIG. 20, the second lever member 72 is in a locked state with the first lever member 71 by a locking/releasing means comprising a movable piece 76 and the like. Therefore, the first lever member 71 also moves to the right together with the second lever member 72, thereby rotating the tray protruding member 53, for example, clockwise in FIG. 10. Therefore, as shown in FIG. 2b, a tray carrying a disc to be played (for example, tray B12)
The disk protrudes from the turntable 23 and moves to a position concentric with the disk carrying surface 23a of the turntable 23 (see FIG. 11b), that is, to a position directly below the disk carrying surface. However, just before the rotation of the tray protruding 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 (see FIG. 20, etc.), and the arc-shaped portion 12m of the tray B12 pushed by the biasing force (See Figure 2b)
The positioning of the tray is completed when the tray contacts the arcuate predetermined contact portion 19c of the movable chassis A19. 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
2f (shown in the 20th drawing) of the clamping mechanism by a pin 79c (shown in the 10th drawing)
swings upward (in the direction of arrow Z). The disc is thus lifted upwards and clamped against the turntable 23. 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 disc onto the turntable is completed, the disc holding member 8
3 is slightly separated from the disk, and the disk pressing member does not hinder 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 specified 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. 19) 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. As a result, the swing lever 64 shown in FIG. 10 etc. swings about the pin 64a, and the magazine 5 engaged with the free end of the swing lever is pushed out of the player body.

Further, the method of using the single adapter 90 is the same as that 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,
The locking means (described above) for locking the second member 92 with respect to the first member 91 is released. At this point, it is pushed in further against the biasing force of the coil spring 97. Then, the locking member 67 engages with the locking recess 95k provided in the sliding plate 95, which is a component of the second member 91.

Here, when a performance is instructed, the tray C96 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 C96 is rotated in the opposite direction as in the case of magazine 5,
Subsequently, the locking member 67 is disengaged.
Then, the first and second members 91 and 92 protrude until the tray C96 is completely exposed to the outside of the main body, as shown in FIG. The listener now completes the disk exchange by simply replacing the disk on the tray with the desired one and pushing the second member 92 together with the first member 91, so there is no need to remove the single adapter 90 again. . Moreover, by further pulling out the first and second members 91 and 92 in the protruding state, the single adapter 90 can be removed and replaced with the magazine 5.

Effects of the Invention As detailed above, in the multi-disc player according to the present invention, one main surface of the disk holder (single adapter 90) formed in the shape of a substantially rectangular parallelepiped is attached along the direction of attachment to the disk holder attachment part. and a linear protrusion (guide rail 2a) provided in the player housing that engages with the linear guide groove 93l; Another linear guide groove 94c that can engage with the linear protrusion and has a total length smaller than the overall length of the guide groove 93l is formed on the main surface of the guide groove 93l.

That is, when the disk holder (single adapter 90) is inserted into the disk holder mounting portion in the player housing 2 in the correct posture, the longer linear guide groove 93l is aligned with the linear protrusion (guide rail 2a). When engaged, the disk holder is installed smoothly, but if the disk holder is upside down and the installation posture is not correct, the short linear guide groove 94c is connected to the linear protrusion (guide rail 2a). engage with
Inserting and mounting the disk holder is blocked midway through.

Therefore, incorrect attachment of the disk holder to the disk holder mounting portion is prevented, disk loading is always performed reliably, and the mechanisms of each part are not damaged.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the entire multi-disc player according to the present invention, Figs. 2a to 5b are views for explaining the magazine, and Fig. 6 is a plan view of the internal structure of the multi-disc player. , FIGS. 7 to 9 are views in the direction of FIG. 6, respectively;
- Arrow view and - arrow view, Figure 10 is 9th
Regarding the figures - arrow views, Figures 11a to 2
3 is a partial detailed view of the internal structure, FIGS. 24 to 28 are diagrams for explaining the single adapter, and FIGS. 29 and 30 are diagrams for explaining the operation of the multi-disc player. FIGS. 31 to 34 are diagrams for explaining a multi-disc player that has already been developed. Explanation of symbols of main parts, 2...Player housing, 3...Front panel, 5...Magazine,
8... Magazine body, 10... Disc, 11...
... Tray A, 12 ... Tray B, 16 ... Chassis, 18 ... Moving member, 19 ... Movable chassis A, 20 ... Movable chassis B, 23 ... Turntable, 23a ... Disk carrying surface, 24 ... ...Carriage, 27, 45, 62...Motor, 30...
...Tray guide member, 33...Movement lever, 34,
35, 49, 86, 87...detection switch, 3
7, 38... Moving plate, 47... Rotating lever, 50... Address plate, 51... Photo sensor, 53... Tray protruding member, 56... Moving body, 64... Rocking lever, 67... Lock Element,
70... intermediate lever, 71... first lever member,
72... Second lever member, 79... Support body, 80
... Pressing member, 83 ... Disc holding member, 90
...Single adapter.

Claims (1)

[Scope of utility model registration request] a player housing, a playing means provided in the player housing, a substantially rectangular parallelepiped-shaped disk holder that holds a disk and is inserted into a mounting portion in the player housing, and a disk in the disk holder that is placed in a playing position. and a guide means for guiding the disk holder to a mounting position, the guide means being formed on one main surface of the disk holder along the mounting direction to the mounting section. and a linear protrusion provided in the player housing to engage with the guide groove, the other main surface of the disc holder being capable of engaging with the linear protrusion. A multi-disc player characterized in that another linear guide groove is formed whose total length is smaller than the total length of the guide groove.