JPH0346908B2 - - 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 As such a disk player, a joke box is generally known. 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. 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 has 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. A locking mechanism is also provided for locking the magazine in the installed position relative to the player housing. Already developed multi-disc players are equipped with unlocking means, such as an electromagnetic solenoid, for releasing the locked state of the magazine caused by the locking mechanism in response to a magazine eject signal, which contributes to miniaturization and cost reduction of the player. This was an issue that needed to be resolved in order to achieve this goal. Summary of the Invention [Object of the Invention] The present invention has been made in view of the above points, and its object is to eliminate the special means for releasing the locking mechanism that locks the magazine to the player housing. Therefore, it is an object of the present invention to provide a multi-disc player that allows the player to be made smaller and to reduce costs. [Structure of the Invention] The multi-disc player according to the present invention has a second
As is clear from the conceptual diagrams of the mechanism shown in FIGS. 0 to 24, a housing, a playing means provided in the housing including a turntable, and a plurality of disks are arranged approximately relative to the disk supporting surface of the turntable. A magazine that can be arranged and stored in order in a right angle direction and that is detachably attached to the housing, a lock mechanism that locks the magazine in the mounting position with respect to the housing, and sequentially selects an arbitrary disk in the magazine. the magazine includes a disk ejecting and conveying mechanism for transporting the disk onto the disk holding surface, and the magazine includes a plurality of disks each capable of supporting a disk on its main surface and protruding from the magazine body along each main surface and capable of being stored therein. The disc ejecting and transporting mechanism includes a tray projecting means for projecting the tray carrying a disc to be played from the magazine body, and a tray projecting means for projecting the tray carrying a disc to be played from the magazine body, and a tray projecting means for projecting the disc carried on the protruding tray at a substantially right angle to the disc carrying surface. a pressing member that cooperates with the turntable to clamp the disk; and a pressing member that is movable in a plane substantially perpendicular to the disk supporting surface. a support that rotatably supports the pressing member; and a third position that is movable between a first position and a second position and is intermediate between the first and second positions. a moving body for moving the support body by doing so, and a driving force applying means for applying a driving force to the moving body,
It is characterized in that when the movable body moves from the third position to the second position, the lock mechanism is activated to release the fixed state of the magazine. 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 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 here 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 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, 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 paths of the magazine body 8 are 8c and 8b in FIG. 3, and 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 is able to 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 push lever 32, 33 engages the rear end of the magazine 5 at its respective swing end 32b and 33b, thereby causing the respective push lever to swing counterclockwise in FIG. ing. In front of each push lever 32, 33, a pair of detection switches 34 and 35 are arranged so that the swinging other end 32c, 33c of each push lever engages with its actuator 34a, 35a to operate the actuator. is placed. These push levers 32, 33 and detection switches 34, 35 cause the magazine 5 to move into the housing 2.
A magazine attachment detection means is configured to detect that the magazine is attached to the magazine attachment portion inside the magazine. 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 described. 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.
Further, each cam groove 37d, 38d is continuous with six straight parts 37e, 38e extending in the moving direction (front-back direction) of the moving plates 37, 38, and each outer straight part, and is connected to the straight parts. 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 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
In between, a rotary lever 47 is 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 (in the direction of arrow Z 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.
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 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. 15 shows details of the tray protruding member 53. As is clear from FIG. 15, 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 on the movable chassis B20.
A pair of pins 53a protruding from the tray protruding member are movably engaged with e and 20f to be guided, and at the same time, the pin 53a is slightly longer than the guide grooves 20e and 20f. The tray protruding member 53 has a small gap in the tray stacking direction. That is, the tray protruding member 53 rotates about the center of curvature of each arcuate guide groove 20e, 20f as a rotation axis, and the tray protruding member 53 rotates at the rotating end 53b of the tray 11, 1.
2 to make it protrude from the magazine body 8. Note that, as is clear from FIGS. 3 and 6, the virtual rotation axis of the tray protruding 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 protruding member 53 to protrude to the outside of the magazine body 8. The tray protrusion member 53 is made of relatively soft resin, and the rotating end portion 53b of the tray protrusion 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 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. Further, when the rotating end portion 53b of the tray protruding 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 protruding 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 positioning mechanism constitutes a tray protruding member moving means for moving the tray protruding member 53 together with the moving member 18 to a position where it engages with the tray 11 or 12 carrying the disc 10 to be played. 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 movable 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 the 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 and 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 as the center and engages 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 a 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 rotating end 6.
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 .
The pivoting end of the intermediate lever 70 has a U-shaped notch 70 that can smoothly engage with a cylindrical engaging portion 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 protrusion member 53 at the right end,
The forward movement (movement to the right) serves to rotate the tray protruding 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). 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. 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 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. 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.
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 is the most forward position (i.e., the tray protruding 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 protrusion member driving means that rotationally drives the tray protrusion member 53 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 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). The free end of the support body 79 comes into contact with the surface of the disk 10 opposite to the surface facing the turntable 23, and cooperates with the turntable to clamp the disk. A disk-shaped pressing member 80 that functions as a disk clamp is rotatably attached. 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. 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 the 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. 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 B20 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 pressing 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 each actuator 86 by 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. It should be noted that the mechanism of the above-described embodiment is conceptually shown in abbreviated form using wirework in the conceptual diagrams of the mechanism in FIGS. 20 to 24. These conceptual diagrams of mechanisms are drawn based on the following conceptual abbreviation rules. Rules for conceptual abbreviation (a) As a general rule, the diagram should be viewed from a single viewpoint. However, the boundaries between diagrams at different viewpoint positions are indicated by two-dot chain lines. (b) A single member or group of members is indicated by a single solid line. However, portions that act as relatively wide force acting surfaces and portions that perform different functions even though they are on the same member are shown in solid line frames as necessary. (c) Entry of reference marks and component names is permitted. (d) Write a number indicating the order of movement near the arrow indicating the movement form. (e) Characteristics, conditions, vertical directions, mutual relationships between members, forms of movement, etc. of members are expressed using symbols as shown in the attached table. Please pay attention to consistency with existing symbols. (f) The ability to restore (reversibility) from a schematic drawing to a projected or perspective view is not required. (g) Allow abstraction and omission of parts related to the inventive concept with an emphasis on function.

[Table] Next, the operation of the multi-disc player having the above structure will be briefly explained along with the playing means, with reference to FIGS. 25 to 28. The multi-disc player performs a disk loading operation according to the operational flow shown in FIG. 25a, and performs an unloading operation according to the operational flow shown in FIG. 25b. Further, the locking operation and ejecting operation of the magazine 5 with respect to the magazine mounting portion are performed in accordance with the operation flow shown in FIGS. 26a and 26b. In the mechanical conceptual diagrams shown in FIGS. 20 to 24, the operations of each part of the multi-disc player are indicated by ○ in the order of operation.
It is shown with . Further, in the flowcharts shown in FIGS. 25a to 26b, numbers for each of these operations are assigned to the corresponding steps. First, when the disc to be played is designated by operating the operation button group 6 shown in FIG.
As shown in FIG. 0, the moving plates 37 and 38 start moving forward (in the direction of arrow Y) or backward (in the direction of arrow Y). Therefore, the moving plate 37,3
The pin 20 is movably fitted into each groove by the action of the stepped cam grooves 37d and 38d formed in the grooves 8 and the guide groove 16e formed in the chassis 16.
c is moved up and down, and the moving member 18 including the movable chassis B20 on which the pin 20c is protruded moves up and down. The tray projecting member 53 provided on the moving member 18 thus reaches a position of engagement with the tray 11 or 12 carrying the disc to be played. 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. 27 and 28 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. 27, 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. When the tray projecting member 53 is thus positioned in the engagement position with the tray carrying the disc to be played, the motor 62 then begins to rotate.
As also shown in FIG. 20, the movable body 56 is driven from the third position shown in FIGS. 6 and 9 toward the first position rearward (in the opposite direction to the direction of arrow Y). Therefore, the intermediate lever 70 is rotated counterclockwise in FIG. 10, that is, clockwise in FIG. Moving.
As shown in FIGS. 17 and 21a, the second
The lever member 72 is a lock consisting of a movable piece 76, etc.
It is in a locked state with the first lever member 71 by the release means. 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, that is, counterclockwise in FIG. 20. Therefore, as shown in FIGS. 3 and 20, a tray carrying a disk to be played (for example, tray B12) protrudes from the magazine body 8, and the disk is placed on the disk carrying surface 23a of the turntable 23 (FIG. 11). b) to a concentric position, that is, directly below the disk carrying surface. However, as shown in FIG. 21a, immediately before the rotation of the tray protruding member 53 and the rightward movement of the first lever member 71 are completed, the locking/releasing means locks the first and second levers. Lever members 71, 72
The locked state of the tray B12 is released, and the subsequent slight rightward movement of the first lever member 71 is performed by the biasing force of the coil spring 75, and the arc-shaped portion 12d (the third The positioning of the tray is completed when the movable chassis A19 comes into contact with a predetermined arc-shaped contact portion (stopper 19c in FIG. 20). Note that the completion of ejection of the tray from the magazine body 8 is detected by the detection switch 8 which is activated by the movement of the movable body 56.
7 (see FIG. 8, etc.). 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 the arrow X), as shown in FIG.
As shown in Figure 0, the tapered portion 7 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. 27. 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 detached 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, that is, the unloading operation is performed according to the flowchart shown in FIG. 25b, and will not be described in detail. Thereafter, the above operation is repeated according to the designated number of songs. By the way, when the magazine 5 is to be installed into the player body, this is done in accordance with the operational flow shown in FIG. 26a. That is, as shown in FIG. 22, by inserting the magazine 5 halfway into the mounting portion, the locking member 67 is pushed by the magazine and swings counterclockwise in the figure against the biasing force of the spring member 68. As shown in FIG. 23, the locking member 67 returns clockwise due to the biasing force of the spring member 68 at the same time as the installation is completed, thereby locking the magazine 5 against the mounting portion. . 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, as shown in FIG. 24, the moving body 56 (for example, see FIG. 16) moves to the third position shown in FIGS. 6 and 9.
The magazine 5 is moved forward (in the direction of arrow Y) by a predetermined distance toward the second position from the position, thereby releasing the locked state of the magazine 5 by the locking member 67. Thereafter, the movable body 56 further moves forward, whereby 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 that is currently in use is pushed out of the player body. Effects of the Invention As detailed above, in the multi-disc player according to the present invention, there are 10 discs to be played.
A predetermined moving body 5 for conveying the disk in a direction perpendicular to the disk carrying surface 23a of the turntable 23.
6 to a second position outside its normal travel stroke, the magazine is unlocked from the player housing. Therefore, the need for special unlocking means, such as an electromagnetic solenoid, for unlocking the magazine is eliminated, making it easier to downsize the player and reduce costs.

[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. 9 to 9 are arrow views, respectively, with respect to FIG. 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 to 2 are partial detailed views of the internal structure.
FIG. 4 is a conceptual diagram of the internal mechanism of a multi-disc player according to an embodiment of the present invention conceptually and wire-worked, and FIGS. 25a to 27 are flowcharts showing the operation flow of the multi-disc player. , FIG. 28 is a diagram showing the signal generation timing of the sensors and switches included in the multi-disc player. 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, 37e, 38e...Straight portion, 3
7f, 38e... Slanted part, 37h... Rack part,
47...Rotating lever, 50...Address plate, 50a...Slit, 51...Photo sensor, 53...Tray protruding 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)

[Claims] 1 A housing, a performance means provided in the housing including a turntable, and a plurality of discs that can be arranged and housed in order in a direction substantially perpendicular to the disc supporting surface of the turntable, and that can be detached from the housing. a freely disposed magazine; a locking mechanism that locks the magazine in the mounting position with respect to the housing; and a disk ejecting and conveying mechanism that sequentially selects arbitrary disks in the magazine and conveys them onto the disk holding surface. , the magazine has a plurality of plate-shaped trays each capable of supporting a disk on its main surface and protruding from the magazine body along each main surface and capable of being freely stored, and the disk ejecting and conveying mechanism is operated. tray protruding means for causing a tray carrying a disk to be protruded from the magazine main body; and disk moving means for moving a disk carried on the protruding tray in a direction substantially perpendicular to the disk carrying surface; The moving means includes a pressing member that cooperates with the turntable to clamp the disk, and a support that is movably provided in a plane substantially perpendicular to the disk supporting surface and rotatably supports the pressing member. a moving body that is movable between a first position and a second position and is configured to move the support body by moving between a third position intermediate the first and second positions; a driving force applying means for applying a driving force to the movable body, and the locking mechanism releases the fixed state of the magazine when the movable body moves from the third position to the second position. A multi-disc player characterized by: