JP2679072B2 - Multi-disc player - Google Patents

Description

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

2. Description of the Related Art In recent years, various types of digital audio discs have been put on the market and the usage thereof has been rapidly increasing, and various types of multi-disc players capable of successively playing 6 to 10 discs have been developed. Many of these multi-disc players are of a type that continuously plays while moving the entire optical pickup block that reads a signal by using laser light. A mechanism for driving a heavy optical pickup block is driven up and down. Was complicated and expensive.

The conventional multi-disc player described above will be described below.

 FIG. 13 shows a conventional multi-disc player.

In FIG. 13, the discs 102 placed on the disc carrying portion 101a of the tray 101 are arranged and stored in order on the shelves 103a formed in six stages of the magazine 103, and can be pulled out and stored respectively.

Reference numeral 104 denotes a mechanism main body of the multi-disc player, and the magazine base 105 for accommodating a magazine formed in a U shape always accommodates the magazine 103 at a fixed position.

106 is a magazine push-out lever and is always a magazine 103
Although it is pushed in the direction B by the insertion of, the pulling spring 107 pushes it in the direction B.

Reference numeral 108 denotes a magazine lock lever for holding the magazine 103 on the magazine base 105, which is engaged with a recess 103b formed on the side wall of the magazine 103 by a pulling spring 109 so as to prevent the magazine 103 from being pushed out in the direction B. It is configured.

Reference numeral 110 denotes a plunger, which is configured to release the engagement between the lock lever 108 and the recess 103b formed in the side wall of the magazine 103 when the magazine 103 is taken out, and the magazine 103 is pushed out by the magazine pushing lever 106. ing.

Reference numeral 111 denotes a speed control device for controlling the pushing speed of the magazine, which is configured to press the magazine pushing lever 106 and to control the pushing speed of the magazine 103.

Reference numeral 112 denotes a tray hook, which is configured to slide in the arrow direction by being guided by a guide shaft 114 provided on a loading base 113 for supplying the tray 101 to a performance start position. Reference numeral 115 is a tray hook drive motor provided on the loading base. The pulley 116 and the belt 117 drive the tray hook 112 in the direction of the arrow, and the recess 101b provided in the tray 101 has the recess 101b.
The tray 101 is configured to be pulled out from the magazine 103 by engaging with 12, and to be stored.

118 is provided on the loading base 113, and the tray 101
Is a tray guide for guiding the disk 102 onto the turntable 120 of the optical pickup block 119 to start playing the disk 102.

Reference numeral 121 denotes a screw screw, which vertically moves up and down while holding the loading base 113 horizontally, so that it is fitted with the female screw portions 122 provided at three places around the loading base 113 so that the loading base 113 can be vertically moved up and down. It is configured.

A timing belt 123 is a timing belt for driving the three screw screws by engaging with a small gear 124 provided under the three screw screws 121, and is configured to be driven by a lifting drive motor 125.

The operation of the multi-disc player configured as above will be described below.

Magazine containing 6 discs 102 and tray 101
When 103 is inserted into the magazine base 105, the pushing force of the magazine push-out lever 106 and the magazine lock lever 108 hold it in place. Then loading base 11
3 moves up and down by the rotation of the lifting drive motor 125, and stops at the height at which the tray hook 112 and the recess 101b of the tray 101 are engaged.

Then, the tray hook drive motor 115 rotates forward, the tray hook 112 pulls out the tray 101 in the direction a,
When the center of the disc 102 comes to the center of the turntable 120, the disc 102 is stopped and the performance is started.

When the performance ends, the tray hook drive motor 115 reverses and the tray hook 112 pushes the tray 101 back in the arrow B direction and stores it in the magazine 103.

Magazine lock lever 1 when the plunger 110 is energized
The engagement between 08 and the recess 103b of the magazine 103 is released, and the magazine 103 is pushed out by the magazine push-out lever 106 in the B direction so that it can be taken out from the multi-disc player main body 104.

SUMMARY OF THE INVENTION However, the above-described configuration requires a strong lifting structure in order to raise and lower the loading base 113 incorporating the heavy optical pickup block 119, tray hook drive motor, etc. by the three screw screws 121. In addition, the entire structure was complicated and expensive.
Further, since the entire weight of the loading base 113 is heavy, it is difficult to increase the lifting speed.

Further, since the pushing-out structure of the magazine is constituted by the combination of the plunger, the pushing-out of the magazine, the lever, the speed control device and the like, there are problems such as generation of a plunger sound and stabilization of the pushing speed.

Furthermore, since the lock mechanism for preventing tray ejection from the magazine when carrying the magazine is released when the magazine is inserted, a separate member is required to prevent the tray ejection from the magazine when inserting the magazine. It was also.

In view of the above problems, the present invention configures a heavy optical pickup lock, a tray hook drive motor, etc. on the main body side,
The entire loading base is made lighter, the lifting speed is increased and the lifting structure is simplified, and the tray hook drive motor is shared to push out the magazine and prevent the tray from jumping out from the magazine. It is intended to provide a multi-disc player which does not require a separate member or the like.

Means for Solving the Problems And, the technical means of the present invention for solving the above-mentioned problems are a plurality of trays carrying a disk and reciprocating in a single direction, and a magazine accommodating the plurality of trays. , A lock lever for attaching the tray to the magazine by engaging one end with the tray by attaching to the magazine, a drive rack for pulling out the tray from the magazine, and a drive rack for the drive rack. A differential rack that moves in the same direction and moves in the same direction before pulling out the tray from the magazine, and is pushed by a part of the differential rack provided between the lock lever and the differential rack, The lock lever for holding the magazine and the tray by the lock lever is provided only when the tray is pulled out.

Operation The operation of this technical means is as follows.

That is, the drive rack moves in one direction to pull out the tray from the magazine, but before that (drawing the tray out of the magazine), the pushing portion of the differential rack configured to move in the same direction has a plurality of disk-carrying push parts. By pushing the convex inclined part of the lock release lever provided between the lock lever that holds the tray of the magazine in the magazine and the differential rack, the holding by the lock lever of the magazine and the tray is performed.
The tray can be pulled out from the magazine only by releasing it when pulling out the tray from the magazine.

Embodiment A multi-disc player according to an embodiment of the present invention will be described below with reference to the drawings of FIGS.

Mainly in FIG. 1, the discs 2 placed on the disc carrying portion 1a of the tray 1 are arranged and stored in order on the shelves 3a formed in 6 stages of the magazine 3, and are respectively drawn out,
It can be stored freely.

Reference numeral 4 denotes a mechanism main body of the multi-disc player of the present invention, which has a magazine base 5 for accommodating a magazine formed in a U shape, up to a position where the magazine 3 contacts a stopper 5a formed on the magazine base 5. Has been inserted.

Reference numeral 6 denotes a magazine lock lever for preventing the magazine 3 inserted in the magazine base 5 from protruding in the direction of B. The magazine lock lever 6 rotates about a mounting shaft 8 on a magazine base substrate 7 provided below the magazine base 5. It is structured so that it can be done.

Reference numeral 9 is a lock lever pulling spring for rotating the magazine lock lever 6, and is biased between a spring hooking pin 6a provided on the upper portion of the magazine lock lever 6 and a spring hooking portion 7a provided on the magazine base substrate 7. ing.

Reference numeral 6b denotes a hook portion formed at the tip of the magazine lock lever 6, which penetrates through an opening 5d provided in the magazine base 5 and engages with a concave portion 3b formed in the side wall of the magazine 3 to move the magazine 3 in the direction b. It is configured to prevent jumping out.

Reference numeral 10 denotes a tray hook, which engages with the concave portion 1b of the tray 1 housed in the magazine 3 and pulls out the tray 1. The bent portion of the loading base 12 is provided with tray guides 11 for guiding the tray 1 at both ends. Tray hook block configured to slide in the air direction along 12a
It is provided in 13.

Numeral 14 is a drive rack for driving the tray hook block 13 in the ero direction for driving the tray 1 in the ero direction and taking it out from the magazine 3 and storing it. The guide parts 14a and 14b provided at the lower part are a mechanism. It is constructed so that it can be engaged with the bent portion 4a of the body 4 and can slide in the direction of the arrow.

Reference numeral 14c denotes a pillar portion provided at one end of the drive rack 14 and having a concave cross section facing upward, and is a convex portion of the tray hook block 13.
It is configured so that 13a is fitted and can slide up and down.

FIG. 2 is an exploded view of the multi-disc player of the present invention, in which 15 is rotated about a shaft 16 provided on the mechanism main body 4 and meshes with teeth 14g (FIG. 3) of the drive rack 14 to drive the drive rack. It is a drive gear that drives 14 in the direction of the arrow.

Reference numeral 17 is an intermediate gear configured to engage with the drive gear 15 and the drive pulley 18 for deceleration, and is configured to rotate about a shaft 19.

20 is a drive pulley provided so as to rotate around a shaft 21.
A belt provided between 18 and a pulley 23 provided above the motor 22 for transmitting the rotation of the motor 22 to the drive pulley 18.

Reference numeral 24 denotes a gear set lever, which is provided so as to be rotatable around the shaft 25, and has a recess 24a at one end and the mechanism body 4
Gear set spring 26 between the spring hook 4b
Has been energized.

24b is a convex portion provided on the other end of the gear set lever 24, and the drive rack 14 is driven by the drive gear 15 as shown in FIG. 3 (A).
When it is sent in the direction of the
By pushing the slope 14e of the convex portion 14d of 4 by the action of the spring 26, the drive rack 14 further advances in the direction of B, and the tooth missing portion 14 of the drive rack 14
The drive gear 15 is separated from f.

At this position, the tray hook 10 is fitted in the concave portion 1b of the tray 1 housed in the magazine 3 with a constant gap so that the tray hook 10 can move in the honey direction.

27 is a differential rack which pushes out the magazine 3 in the direction of B, and is slidably provided under the drive rack 14.
Since it engages with the drive gear 15 and is driven in the arrow direction, the center line of the teeth 14g of the drive rack 14 and the center line of the teeth 27a of the differential rack 27 are configured to be flush with each other.

27b is a push-out portion that pushes out the surface of the elongated hole 14h of the drive rack 14 and the magazine 3 protruding upward, and is configured to be constantly pulled up to the end 14h 'of the elongated hole of the drive rack 14 by the pulling spring 28. At this time, the teeth 14g of the drive rack 14 and the teeth 27a of the differential rack 27 are configured so that the peaks and valleys are aligned.

FIG. 3 (A) shows a state in which the tray hook 10 stores the tray 1 in the magazine 3, and the switch 29 provided on the mechanism main body 4 has a switch pushing portion 27c provided on the differential rack 27. The switch 30 is in the ON state and the switch 30 is in the OFF state.

When the drive gear 15 rotates in the direction of the arrow in FIG. 3 (B), the differential rack 27 is first driven in the A direction, and then the drive rack 14 and the differential rack 27 engage with the drive gear 15 and proceed in the B direction. When the engagement with the differential rack 27 is completed and the drive rack 14 is further driven in the direction a, the end portion 27d of the differential rack 27 comes into contact with the stopper portion 4c of the mechanism body 4 and stops, and the drive rack 14 is moved further. Differential rack 27
Slides on the drive rack 14, and when the state shown in FIG. 3 (B) is reached, the tray hook 10 pulls out the tray 1 from the magazine 3 in the direction of B, and the center of the disk 2 placed on the tray 1 moves to the first position. The turntable of the known optical pickup block 31 provided on the mechanism body 4 as shown in FIG.
It shows a state of stopping at the center of 32.

At this time, the switch 29 is in the OFF state, and the switch 30 is pushed by the convex portion 14d of the drive rack 14 to be in the ON state.

Next, when the drive gear 15 rotates in the reverse direction as shown by the arrow in FIG. 3 (C), the drive rack 14 is driven in the B direction, and the push-out portion 27b of the differential rack 27 is pulled by the pulling spring 28 to drive the drive rack 1.
It comes into contact with the long hole end portion 14i of 4.

Further, when the drive rack 14 is driven in the direction B, both the differential rack 27 and the drive rack 14 mesh with the drive gear 15,
As shown in FIG. 3 (A), when the drive gear 15 and the drive rack 14 are disengaged from each other and the gear set lever 24 pushes the drive rack 14 further in the B direction, the end portion 14j of the drive rack 14 is moved to the mechanism main body 4 Stop by contacting the stopper 4d.

When the drive gear 15 further rotates in the direction of the arrow in FIG. 3 (C), only the differential rack 27 is driven in the B direction, and as shown in FIG. 4, a pushing portion having an inclined surface on one side of the pushing portion 27b. 2
7b 'pushes the curved rib portion 6c formed below the magazine lock lever 6 and rotates the magazine lock lever 6 in the direction of the arrow to move from the recess 3b formed in the side wall of the magazine 3 to the magazine lock lever 6. When the hook portion 6b formed at the tip of 6 is unlocked and the differential rack 27 is further driven in the B direction, the pushing portion 33a of the eject lever 33 provided on the magazine base substrate 7 causes the differential rack 27 to move. The magazine 3 is pushed out in the direction B by being pushed by the pushing portion 27b of FIG. 3 and the state shown in FIG.

The eject lever 33 is configured so that the shaft 34 provided on the magazine base substrate 7 and the long hole 33b can be fitted together and slid in a certain amount in the direction of the arrow.
It is configured to push out the lower part of.

At this time, the switch 29 is the switch pushing portion 27 of the differential rack 27.
The switch 30 is configured to be turned on by e and the switch 30 is turned on by the switch pushing portion 27f of the differential rack 27.

When the magazine 3 is inserted into the magazine base 5 as shown in FIGS. 3 (D) and 4, the magazine lock lever 6 is rotated in the direction of arrow E by the pulling spring 9 into the concave portion 3b provided on the side wall of the magazine 3. The hook portion 6b is engaged and the magazine 3 is held so as not to come out in the direction B.

The eject lever 33 is pushed in the direction of
The pushing portion 27b of 27 is driven in the direction a.

At this time, the switch 30 is the switch pushing portion 27 of the differential rack 27.
It is turned off by moving away from f, and the switch 29 is also turned off by moving away from the switch pushing part 27e of the differential rack 27, and the motor 22
Rotates, the drive gear 15 is rotated in the direction of the arrow in FIG. 3 (D), and only the differential rack 27 is driven in the direction a.
It is configured to stop in the state of FIG. 3 (A).

When the differential rack 27 is driven by the motor 22 and moves in the direction a, the pushing portion 27 having an inclined surface as shown in FIG.
The slanted surface of b ′ pushes up the rib portion 6c of the magazine lock lever 6 in the T direction and passes it.

The magazine lock lever 6 is made of a springy resin material such as boriacetal resin and has a thin spring portion 6d.
When the pushing portion 27b 'passes through the rib portion 6c of the magazine lock lever 6, the rib portion 6c bends when pushing up the rib portion 6c in the direction T, and the rib portion 6c returns to the direction C again.

35 is a lifting motor, which is a pulley installed at the top
A belt 39 is provided between 36 and a pulley gear 38 configured to rotate around a shaft 37 provided in the mechanism body 4.

The intermediate gear 41, which is provided so as to rotate about the shaft 40, is configured to mesh with the gear portion 43a of the elevating cam 43, which is provided so as to rotate around the shaft 42, and the pulley gear 38.

In FIG. 5, reference numeral 44 is an elevating rack provided below the loading base 12, and is configured to engage with the elevating cam 43 to elevate the loading base 12 in the honey direction.

Reference numeral 43b denotes a sensor wall portion formed in a ring shape on the lower portion of the elevating cam 43, and has a slit portion 43b '.

A photoelectric switch 45 is configured to count the number of rotations of the elevating cam by passing through the slit portion 43b '.

The spacing between the teeth of the lifting rack 44 is the shelf 3a of the magazine 3.
It has the same space between the shelves and the shelves, and the lifting cams 43 and 1
It is configured to feed one tooth by rotation.

Reference numeral 46 denotes a limit switch, and when the elevating rack 44 descends in two directions and the tray hook 10 falls below the position of the lowermost shelf of the magazine 3, the convex portion 44a formed on the elevating rack 44 turns on the limit switch 46. It is configured like this.

Reference numeral 47 is a timing gear for preventing the loading base 12 from tilting, and is fixed to both ends of a gear shaft 48 that penetrates through holes 12b provided on both sides of the loading base 12.

Reference numeral 5b denotes tooth portions provided at both ends of the magazine base 5, which are configured to engage with the timing gear 47, and guide portions 48a formed at both ends of the gear shaft 48 so as to project out from the timing gear 47 are The timing gear 47 is configured so as not to be disengaged from the tooth portion 5b of the magazine base by being fitted into the guide grooves 5c formed at both ends of the magazine 5.

49 and 50 are an elevating lever and an elevating assist lever for elevating the loading base 12 while holding it horizontally.
One pair is provided on each of the left and right sides of the loading base 12.

A shaft 51 provided on the loading base 12 is fitted and supported in a hole 49a provided at one end of the elevating lever 49, and a shaft 52 provided at a central portion of the elevating lever 49 is provided at a central portion of the elevating auxiliary lever 50. A shaft 53 provided at the other end of the elevating lever 49, which is fitted in the elongated hole 50a, is attached to the mechanism main body 4 by attaching portions 54 and 5.
4'is inserted into the long holes 54a and 54a ', and the shafts 55a and 55a' of the supporting portions 55 and 55 'provided on the mechanism main body 4 are inserted into the holes 50b provided at one end of the lift assist lever 50 to support the shaft. Then, the shaft 56 provided on the loading base 12 is inserted into the elongated hole 50c provided at the other end of the lifting assist lever 50, so that when the shaft 51 is driven in the direction C, the shaft 52 of the lifting lever 49 is moved.
Lifts the upper part of the long hole 50a of the lift assist lever 50,
Is only driven in the direction of c.
c drives the shaft 56 provided on the loading base 12 in the direction of C, so that the loading base 12 is held horizontally.

FIG. 6 shows an embodiment of the present invention as a whole of a multi-disc player, in which a front panel 58 of the player housing 57 has a mounting opening 58a for a magazine 3 for storing discs in the player housing 57. It is provided.

Further, an operation button group 59 for operating the multi-disc player and a display section 60 are provided on the front panel 58. Incidentally, 61 is a disc display portion.

Reference numeral 4 denotes a mechanism main body of the multi-disc player according to the embodiment of the present invention, which is formed in the player housing 57.

6 to 9 will be described with reference to the drawings with respect to another embodiment of the multi-disc player of the present invention.

In FIG. 6, reference numeral 61 denotes a disc display portion provided on the front panel 58, and when the magazine 3 is mounted in the player housing 57, only the place where the discs of the six shelves 3a of the magazine 3 are turned on. The six contacts 62a of the six-switch 62 are arranged at positions corresponding to the six shelves 3a of the magazine 3, respectively.

Reference numeral 63 is a disk switch lever configured to be rotatable about a shaft 64 provided on the magazine base substrate 7, and is configured to insert and fix the six-switch 62 into a recess 63a provided at one end.

Reference numeral 65 is a disk switch auxiliary lever, and a shaft 64 is attached so as to be rotatable about a center, and a spring spring portion 65a formed in the central portion is pulled to a spring spring portion 63b of the disk switch lever 63 so as to be pulled toward each other. 66 are urged.

Reference numeral 65b denotes a push portion provided at one end of the disc switch auxiliary lever 65, and when the magazine 3 is inserted into the magazine base 5, the push portion 65b is pushed by the inclined portion 33d formed at the tip of the eject lever 33, and the disc switch auxiliary lever 65b is pushed. It is configured to rotate 65 in the arrow direction. At this time, the disc switch lever 63 is pivoted together in the redirection by a tension spring 66 biased between the disc switch auxiliary lever and the disc switch auxiliary lever, and one end of the disc switch lever 63 is pivotally supported by the switch shaft 62b so that the disc switch lever 63 can pivot. When the tip portions 62c 'of the six switch pieces 62c provided like this come into contact with the disk 2 and stop, and when the disk switch lever 63 further rotates in the redirection,
The other end 62c ″ of the switch piece 62c is configured to push the contact 62a to turn it off.

Reference numeral 67 is a tension spring urged between a spring hook portion 65c provided on the disk switch auxiliary lever 65 and a spring hook portion 7b of the magazine base substrate 7, and when the magazine 3 is not always in the magazine base 5, The switch lever 63 is rotated in the direction n so that the six-series switch 62 is separated from the disc 2.

Reference numeral 14k denotes a cam portion formed on the upper part of the drive rack 14, and when the drive rack 14 is driven in the arrow A direction and the disc 2 is taken out from the magazine 3 and conveyed, the disc switch is started before the disc 2 starts moving in the A direction. The roller portion 63c provided at the other end of the lever 63 is provided on the slope 14 at one end of the cam portion 14k.
The k'rotates in the direction of arrow N to prevent the disc 2 from contacting the switch piece 62c.

At this time, as shown in FIG. 9, the tray hook block 13
The slide piece 68 provided with a convex portion 68a that slides a predetermined amount into the concave portion 13a provided in the drive rack 14 and fits into the columnar portion 14c of the drive rack 14 has a stopper screw 69 at one end to prevent it from coming off and the other end to be a compression spring. When the slide piece 68 configured to be always pressed in the direction a by 70 is driven in the arrow B direction by the column portion 14c having a concave cross section of the drive rack 14, and the tray 1 is returned and stored in the magazine 3 by the tray hook 10, One end 13b of the tray hook block 13 comes into contact with a stopper portion 12c provided on the bending portion 12a of the loading base 12 to stop, and the drive rack 14 slides in a certain amount in the direction b.
Since the compression spring 70 is compressed by a certain amount and stopped by driving the 68, the tray 1 is prevented from moving in the a direction even if the drive rack 14 is driven by the certain amount in the a direction. While the drive rack 14 is being driven for a certain amount, the roller portion 63c of the disk switch lever 63 is rotated in the direction of the arrow by the inclined surface 14k 'at one end of the cam portion 14k of the drive rack 14 and the disk 2 and the switch piece 62c. When the disc 2 is pulled out in the direction of arrow A and moved to a position where it does not come into contact with the switch piece 62c, the roller portion 63c moves along the inclined surface 14k ″ at the other end of the cam portion 14k, and the disc switch lever 63 Is configured to rotate and return in the redirection.

FIG. 10 shows another embodiment of the multi-disc player of the present invention, which will be described with reference to the drawings.

In FIG. 10, 71 is the eject lever A, and 2
Two shafts 34 provided on the lower surface so as to be caulked and fixed in each hole 71a.
Is slidably fitted in the elongated hole 7'a of the magazine base substrate 7'in the arrow arrow direction.

72 is an eject lever B, which is configured so that the shaft 34 that fits in the two elongated holes 72a is caulked and fixed in the two holes 71b of the eject lever A71 so that the eject lever B72 can slide on the eject lever A71 by a certain amount. ing.

Reference numeral 73 denotes a pulling spring, which is biased between a spring hooking portion 71c provided on the eject lever A71 and a spring hooking portion 72b of the eject lever B72 so as to pull each other.

Reference numeral 71d is an L-bent portion provided at one end of the eject lever A71. When the magazine 3 is inserted into the magazine base 5, the lower portion of the magazine 3 is pushed to eject the eject lever A71.
And the eject lever B72 are both configured to move in the arrow A direction, and the inclined portion 71e provided on the eject lever A71 rotates the disc switch auxiliary lever 65 in the arrow direction and is provided at one end of the eject lever B72. The pushing portion 72c is configured to push the pushing portion 27b of the differential rack 27 in the direction of arrow a.

74 is a magazine pushing spring, which is urged between the spring-loaded parts 7'b, 7'c, 7'd of the magazine base substrate 7 '
74a is configured to push back a certain amount of the pushing portion 71f of the eject lever A71 in the B direction. When the magazine 3 is inserted into the magazine base 5 by this spring force and the magazine 3 is held by the magazine lock lever 6. The recess 3b formed on the side wall of the magazine 3 and the magazine lock lever 6
It is configured so as to eliminate play between the hook portion 6b and the hook portion 6b.

Also, when the magazine 3 is inserted into the magazine base 5 at a rapid speed, the tension spring 73 is extended by the load of the differential rack 27, the insertion speed of the magazine 3 is moderated, and it is transmitted to the pushing portion 27 of the differential rack. It is configured.

11 to 12 show another embodiment of the multi-disc player of the present invention, which will be described with reference to the drawings.

In the figure, the magazine 3 has a flat box-shaped magazine case 3-1, a bottom plate 3-2, and a tray lock base block 75 for locking and clamping the tray 1.

To explain the configuration of the magazine 3 in more detail, the lock base block 75 prevents the tray 1 from popping out when the tray 1 is stored along the shelf 3a of the magazine 3.
A lock lever 78 is attached to a lock lever shaft 77 provided on the lock base 76 so that the lock lever 78 can rotate.
One end 78a of 78 is a lock portion 1c formed in a convex shape of the tray 1.
The other end 78b is pushed by a finger from the outside of the magazine 3 to prevent the tray 1 from moving in the arrow A direction by engaging with the one end 78a of the lock lever 78 and the tray 1. The lock base 76, which is a lock releasing piece for releasing the holding with the lock portion 1c and corresponds to the position of the hole 3c of the magazine 3, is attached to the magazine case 3-1 and the bottom plate 3-2.

The magazine case 3-1 and the bottom plate 3-2 are fixed by welding to form the magazine 3.

Reference numeral 79 is a lock spring, and in order to always rotate the lock lever 78 in the arrow E direction, the central portion is inserted into the lower portion of the lock lever shaft 77, one end 79a is brought into contact with the bent portion 76a of the lock base 76, and the other end 79b is locked lever. The spring pressure is applied to the convex portion 78c formed on the lower portion of the 78 to urge the spring pressure.

Reference numeral 80 denotes a tray set lever, which is used when the six trays 1 stored in the magazine 3 are taken in and out one by one,
Recesses formed on the tray 1 to correctly determine the storage position
It is configured so that the convex portion 80a formed on the tray set lever 80 pushes 1d, and locks the pushing portion 80b of the tray set lever 80 that is attached to the tray set lever shaft 81 provided on the lock base 76 so as to be rotatable. The L-shaped leaf spring 82 attached to the L-shaped bent portion 76b formed on the base 76 is configured to push.

The leaf spring 82 is formed by pressing one leaf spring into a comb shape,
The central portion 82a is bent into an L shape, and the six tray set levers 80 provided so as to correspond to the six trays 1 one by one are provided with the six comb-shaped portions 82b of the leaf spring 82.
Are configured to be pushed individually.

Reference numeral 76c is a detent portion that is bent upward on the lock base 76, and is configured so that one end 80c of the tray set lever 80 abuts on it to deter the detent.

Reference numeral 3d is a rib provided in the inner portion of the magazine case 3-1, and is a stopper when the tray 1 is inserted into the magazine 3.

Reference numeral 83 denotes a push portion 27b of the differential rack 27 and the lock lever 78.
It is a lock release lever provided between and, and is configured to be rotatable in a predetermined amount in the arrow worker direction about a shaft 84 provided on the magazine base substrate 7.

Reference numeral 83a denotes a convex portion provided at one end of the lock release lever 83, and a convex inclined portion 83b provided at the other end of the lock release lever 83 causes a push portion 27b of the differential rack 27 due to movement of the differential rack 27 in the direction a. When it is pushed by and is rotated in the arrow w direction, the lock release piece 78b of the lock lever 78 is pushed to release the holding of the tray 1 and the tray 1 can be pulled out from the magazine 3 in the direction a.

Reference numeral 85 is a pulling spring which is a spring hook portion of the lock release lever 83
The lock release lever 83 is constantly urged between the 83c and the spring hooking portion 7'd of the magazine base substrate 7 so as to rotate the lock release lever 83 in a fixed direction by a certain amount.

Reference numeral 86 is a wire spring, and when the lock release lever 83 is rotated in the w direction, the thin portion 83d of the lock release lever 83 is formed of a spring-like resin material that bends to absorb the amount of rotation. In order to protect the permanent deformation of the thin-walled portion 83d, the thin-walled portion 83d is inserted into concave spring receiving portions 83e and 83f formed on the left and right sides.

The operation of the multi-disc player configured as described above will be described below with reference to FIGS. 1 to 12.

First, when a disk to be played is designated by operating the operation button group 59 shown in FIG. 6, a drive voltage is supplied to the lifting motor 35, and the lifting cam 43 and the lifting rack 44 are driven. , The loading base 12 rises in the direction of “c” and stops at the designated disc position. This position is determined by the count of the photoelectric switch 45 in combination with a known microcomputer.

Subsequently, the drive voltage is supplied to the motor 22, and the drive rack 14 and the differential rack 27 are driven in the direction a by the engagement with the drive gear 15 and the switch 30 in the state of FIG. 3 (B).
Turns on and stops.

At this time, the tray hook block 13 is driven in the direction a by the fitting of the convex portion 13a and the pillar portion of the drive rack 14, and the center of the turntable 32 of the optical pickup block 31 and the disc 2 on the tray 1 are driven. The tray hook 10 pulls out the tray 1 until the centers of the trays are almost aligned.

Next, the reverse voltage is supplied to the lifting motor 35, the loading base 12 descends in the two directions, and the limit switch 46
Press and then further drop a certain amount to stop. This lowering position is performed in combination with a known microcomputer by the count number of the photoelectric switch 45.

At this time, the disc 2 is supplied onto the turntable 32 of the optical pickup block 31, and the performance is started with a certain gap between the disc 2 and the tray 1.

When the performance ends, the driving voltage is supplied to the lifting motor 35 by the known combination of the end detection means and the microcomputer, and the loading base 12 moves up in the direction of "c" and is stored in the computer at the first extracted position. Stop.

Next, the reverse voltage is supplied to the motor 22, and the drive rack 14,
The differential rack 27 is driven in the direction B, stops at the position shown in FIG. 3 (A), and the switch 29 is turned on. At this time, the tray 1 and the disc 2 are stored in the magazine 3.

Then, the reverse voltage is supplied to the lifting motor 35, the loading base 12 descends in the two directions, and the limit switch
Turn ON 46 to stop and end the operation. Operation button group
By designating 59, the six discs in the magazine can be successively played, the programmed performance of only the favorite disc, the repeated performance of one disc, and the like can be performed in combination with a known microcomputer.

When the eject button of the operation button group 59 shown in FIG. 6 is operated when the magazine 3 is taken out from the player housing 57, only the operation rack 27 is driven in the direction B as shown in FIG. After the holding of the lever 6 and the magazine 3 is released, the eject lever 33 is pushed in the B direction so that the magazine 3 can be pushed out and taken out. At this time, the switches 29 and 30 are both turned on.

When the magazine 3 is inserted into the player housing 57, the magazine 3 pushes the eject lever 33 in the y direction as shown in FIG. 3 (D), and the eject lever 33 pushes the differential rack 27 in the y direction. It is turned off by being separated from the switch pushing portion 27f of the moving rack 27, and the switch 29 is turned off by the switch pushing portion 27c of the differential rack 27 as shown in FIG. 3 (A).
The differential rack 27 is driven in the B direction until N.

Furthermore, when the switch piece 62c of the 6-series switch 62 provided at a position corresponding to each shelf 3a of the magazine 3 in which the discs 2 are arranged and stored in order, when the magazine 3 is inserted into the player housing 57, the presence or absence of the discs 2 is approached. It is detected and the disc display portion 61 is illuminated.

Next, before the disc 2 is taken out from the magazine 3 and conveyed, the disc switch lever 63 is rotated by the cam portion 14k of the drive rack 14 so that the switch piece 62c does not come into contact with the disc 2, and then the disc 2 is ejected.
When the disk 2 is taken out and carried, and the switch piece 62c is taken out and carried to a position where the disk piece 2c does not touch the disk 2 due to the rotation return of the disk switch lever 63, the tension spring is pulled again.
The disc switch lever 63 can be pivotally returned by 66. Further, when the magazine 3 is rapidly inserted into the magazine base 5, the tension spring 73 is extended by the load of the differential rack 27 and the insertion speed of the magazine 3 is moderated. 14 slots 14
It is possible to prevent an erroneous operation of pulling out the tray due to the drive rack 14 advancing too much in the direction a by pushing h ′ too much.

The positional relationship between the drive rack 14 and the differential rack 27 in FIG. 11 is the position shown in FIG. 3 (A), and in this state the drive gear 15
When the differential rack 27 and the drive rack 14 are driven in this order in the direction of arrow A by the drive of, the pushing portion 27b of the differential rack 27 pushes the convex portion 83b of the lock release lever 83 to rotate in the arrow w direction. The holding of the tray 1 and the lock lever 78 is released.

At the initial stage when the drive rack 14 is driven in the direction a,
As described in FIG. 9, since the tray hook block 13 is pressed against the stopper portion 12c of the loading base 12 and the compression spring 70 is compressed, even if the drive rack 14 moves in the direction a, the tray hook 10 is Even if you proceed in the A direction, you will not proceed in the A direction. Therefore, the tray 1 is not pulled out in the direction a. At this timing, the holding of the tray 1 and the lock lever 78 is released, and when the drive rack is further driven in the a direction, the slide piece 68 pushes the stopper 69 to drive the tray hook block 13 in the a direction, and the tray 1 is moved. Withdraw. When the drive rack 14 is further driven in the direction a,
The pushing portion 27b of the differential rack shown in FIG. 11 passes in the direction a from the convex inclined portion 83b of the lock release lever 83, and the lock release lever 83 is returned by the pulling spring 85 in the direction of rotation. Again, the tray 1 in the magazine 3 is held by the lock lever 78.

When the playing is completed and the tray 1 is driven in the direction B to be stored in the magazine 3, the pushing portion 27b of the differential rack pushes the convex inclined portion 83b of the lock release lever 83 to rotate it in the w direction, It returns to the original position shown in FIG.

EFFECTS OF THE INVENTION As described above, according to the present invention, a lock lever for holding trays in a magazine is provided in a magazine in which a tray carrying a plurality of trays carrying a plurality of discs that reciprocate in a single direction are arranged and stored in order. Retaining the tray in the magazine by the lever is configured to be released only when the tray is pulled out from the magazine, so it is highly reliable without complicated movement of the tray, and the tray is retained in the magazine. By minimizing the release time, it is possible to provide a multi-disc player capable of preventing the tray and the disc placed on the magazine from falling out with a highly reliable configuration.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a mechanism of a multi-disc player according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the mechanism, and FIG. 3 is a plane for explaining a horizontal driving operation of the multi-disc player. 4 and 5 are perspective views for explaining the lock and unlock of the magazine, FIG. 5 is a perspective view showing a vertical drive structure of the loading base, and FIG. 6 is a perspective view showing the whole multi-disc player. FIG. 7 is a plan view, a front view and a right side view for explaining another embodiment of the present invention, FIGS. 8 to 9 are perspective views for explaining the details thereof, and FIGS. Is a perspective view and a plan view for explaining another embodiment, and FIG. 13 is a perspective view showing a conventional multi-disc player. 1,101,115 …… Tray, 2 …… Disk, 3 …… Magazine, 4 …… Mechanism body, 5,105 …… Magazine base, 6,108 …… Magazine lock lever, 6b …… Hook part, 7 …… Magazine base board, 8 …… Mounting shaft, 9 ...
Lock lever tension spring, 10 …… Tray hook, 11 …… Tray guide, 12 …… Loading base, 13 …… Tray hook block, 14 …… Drive rack, 15 …… Drive gear, 16,19,21,25, 37,40,42 …… Axis, 17 …… Intermediate gear,
18 …… Drive pulley, 20 …… Belt, 22 …… Motor,
23,36 …… Pulley, 24 …… Gear set lever, 26…
… Gear set spring, 27 …… Differential rack, 28 …… Pull spring, 29, 30 …… Switch, 31 …… Optical pickup block, 32 …… Turntable, 33 …… Eject lever,
34 …… axis, 35 …… elevating motor, 38 …… pulley gear, 39 …… belt, 41 …… intermediate gear, 43 …… elevating cam, 44 …… elevating rack, 78 …… lock lever.

Claims (1)

(57) [Claims] 1. A plurality of trays carrying a disk and reciprocating in a single direction, a magazine accommodating the plurality of trays, attached to the magazine, and having one end engaged with the tray, A lock lever for holding the tray in the magazine, a drive rack for pulling out the tray from the magazine, and a drive rack that moves in one direction to move the tray in the same direction before pulling out from the magazine. The movable rack is provided between the lock lever and the differential rack and is pushed by a part of the differential rack, so that the magazine and the tray are held by the lock lever only when the tray is pulled out. A multi-disc player having a lock release lever for releasing.