JP2563421B2 - 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. .

Conventional technology In recent years, various digital audio discs have been released,
The amount of use is also increasing rapidly, and various multi-disc players that can successively play 6 to 10 discs have been developed. For this multi-disc player,
Many of the types that continuously play while moving the entire optical pickup block that reads the signal using a laser beam move the heavy optical pickup block up and down, so the mechanism for driving this is complicated and expensive. Was becoming.

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

FIG. 13 shows a conventional multi-disc player. Thirteenth
In the figure, the discs 102 placed on the disc carrying portion 101a of the tray 101 are the shelves 10 formed in six stages of the magazine 103.
They are arranged and stored in order on 3a, and each can be pulled out and stored.

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

106 is a magazine push-out lever and is always a magazine 103
It is configured to be pushed out in the direction of B by the pulling spring 107 while being pushed in the direction of B by the insertion of.

Reference numeral 108 denotes a magazine lock lever for locking the magazine, and is configured to be engaged with a recess 103b formed in 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 B direction.

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 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 is a screw screw, which vertically moves up and down while holding the loading base 113 horizontally, so that it is fitted with three female screw portions 122 provided around the loading base 113 to vertically move the loading base 113 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 described above will be described below.

Magazine containing 6 discs 102 and tray 101
When 103 is inserted into the magazine base 105, it is locked in place by the pushing force of the magazine push-out lever 106 and the magazine lock lever 108. Then loading base
The 113 moves up and down by the rotation of the lifting drive motor 125, and stops at a 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, it stops and the performance starts.

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 concave portion 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 and 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 push-out structure of the magazine is composed of a combination of a plunger, a magazine push-out lever, a speed control device, etc., there are problems in generating a plunger sound and stabilizing the push-out speed.

Furthermore, when the magazine is pushed out, if the pushing force from the plunger is large, the magazine may overrun and jump out of the magazine base 105.

In view of the above problems, the present invention provides a multi-disc player that does not jump out of the magazine base when the magazine is pushed out.

Means for Solving the Problem And the technical means of the present invention for solving the above-mentioned problems are a magazine for arranging and storing a plurality of discs in order, a recess formed in an outer peripheral wall of the magazine, and a recess facing the recess. A magazine lock lever having a hook portion at a position is provided, and the hook portion is pressed against the recess to prevent the magazine from popping out.

Operation The effects of this technical means are as follows. That is, the push mechanism of the differential rack unlocks the magazine lock lever and the magazine, and then the eject lever pushes out the magazine.This push speed pushes the eject lever more than the amount pushed out the magazine. As a means for preventing the player from falling out of the player body, it can be achieved by arranging the hook portion of the magazine lock lever to push out a concave portion having an inclined surface provided on the outer peripheral wall portion of the magazine.

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

In FIG. 1, the discs 2 mounted on the disc carrying portion 1a of the tray 1 are shelves 3a formed in six stages of a magazine 3.
It is arranged and stored in order, and can be freely pulled out and stored. Reference numeral 3b is an engaging recess provided on the wall of the magazine 3, and 3d is a recess having an inclined surface provided on the rear side of the engaging recess 3b.

Reference numeral 4 is a mechanism main body of the multi-disc player of the present invention, and a magazine base 5 for accommodating a magazine formed in a U-shape always has a position where the magazine 3 comes into contact with a stopper 5a formed on the magazine base 5. Has been inserted up to.

Reference numeral 6 denotes a magazine lock lever for preventing the magazine 3 inserted in the magazine base 5 from protruding, and is configured so as to be rotatable around a mounting shaft 8 on a magazine base substrate 7 provided below the magazine base 5. ing.

Reference numeral 9 denotes a lock lever pulling spring for rotating the magazine lock lever 6, which is urged 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. Has been done.

Reference numeral 6b denotes a hook portion formed at the tip of the magazine lock lever 6, which penetrates the opening 5b provided in the magazine base 5 and engages with the recess 3b formed in the side wall of the magazine 3 to fix the magazine 3; It is configured so as to prevent the magazine 3 from popping out by engaging with the concave portion 3d having an inclined surface.

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 13 that can be slid along 12a in the air direction
It is provided in.

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 structured so that 13a can be combined and slid up and down. FIG. 2 is an exploded view of the multi-disc player of the present invention. 15 rotates about a shaft 16 provided on the mechanism main body 4 and engages with teeth 14c of the drive rack to drive the drive rack in the ero direction. It is a drive gear that

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
The gear set spring 26 between the spring hooking portion 4b provided on the
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).
14d of the drive rack 14 when sent in the direction of
Push the slope 14e of the
It is configured to separate the 4f and the drive gear 15.

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 magazine 3 protruding above the surface of the long hole 14h of the drive rack 14, and is configured to be constantly pulled up to the end 14h 'of the long 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 of the differential rack 27 is
When 27d abuts on the stopper portion 4c of the mechanism main body 4 and stops and the drive rack 14 further advances in the direction a, the differential rack 27 slides on the drive rack 14 and when the state shown in FIG. 10 pulls out the tray 1 from the magazine 3 in the direction B, and the center of the disk 2 placed on the tray 1 is the turntable of the known optical pickup block 31 provided on the mechanism body 4 as shown in FIG. 32
It shows a state of stopping at the center of.

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.

When the drive rack 14 is further driven in the B direction, both the differential rack 27 and the drive rack 14 engage with the drive gear 15, and the drive gear 15 and the drive rack 14 disengage as shown in FIG. 3 (A). Rack driven by set lever 24
When 14 is pushed further in the direction B, the end 14j of the drive rack 14 is
Comes into contact with the stopper 4d of the mechanism body 4 and stops.

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 the pushing portion 2 having the inclined surface formed on one side of the pushing portion 27b as shown in FIG.
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 such 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. The bent portion 33c at one end pushes out the lower portion of the magazine 3. ing.

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 FIG. 3 (D) and FIG. 5, the magazine lock lever 6 is rotated in the direction of arrow E by the pulling spring 9 to move into the recess 3d provided on the side wall of the magazine 3. The hook portion 6b is engaged so that the magazine 3 is locked 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 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
Is rotated to rotate the drive gear 15 in the direction of the arrow in FIG. 3 (D) and only the differential rack 27 is driven in the direction a 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 polyacetal resin and has a thin spring portion 6d.
Is bent when pushing up the rib portion 6c in the T direction, and when the pushing portion 27b 'passes through the rib portion 6c of the magazine lock lever 6, the rib portion 6c returns to the C direction again.

Reference numeral 35 is a lifting motor, and a belt 39 is provided between a pulley 36 provided on the upper portion and a pulley gear 38 configured to rotate around a shaft 37 provided on the mechanism body 4.

The intermediate gear 41, which is provided so as to rotate about the shaft 40, is configured to engage 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 denotes an elevating rack provided below the loading base 12, and is configured to engage with the elevating cam 43 to elevate the loading base 44 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 is formed with the same space between the shelves and the shelves, and it is 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.

Numeral 5b is a tooth portion provided at both ends of the magazine base 5, and is constituted so as to be meshed 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 provided on the magazine base 5. The timing gear 47 is configured to be fitted in the guide grooves 5c formed at both ends so as not to be disengaged from the tooth portion 5b of the magazine base.

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

A shaft 51 provided in the loading base 12 is supported by a hole 49a provided at one end of the elevating lever 49, and a shaft 52 provided at the center of the elevating lever 49 is provided at the center of the elevating assist lever 50. The shaft 53 provided at the other end of the elevating lever 49 is inserted into the elongate holes 54a and 54a 'of the mounting portions 54 and 54' provided on the mechanism main body 4, and the elevating assist lever 50 is fitted.
The shafts 55a and 55a 'of the supporting portions 65 and 55' provided on the mechanism main body 4 are inserted into the hole 50b provided at one end of the shaft to support the mechanism, and loaded into the long hole 50c provided at the other end of the lifting assistance lever 50. By configuring the shaft 56 provided on the base 12 to be inserted, the shaft 52 of the elevating lever 49 is driven when the shaft 51 is driven in the C direction.
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 the entire multi-disc player according to the embodiment of the present invention. The front panel 58 of the player housing 57 has an opening 58a for mounting a magazine 3 for storing a disc in the player housing 57. Is provided. Further, an operation button group 59 and a display section 60 for operating the multi-disc player are provided on the front panel 58.

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.

FIGS. 6 to 9 explain another embodiment of the multi-disc player of the present invention with reference to the drawings.

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 placed is turned on. The six contacts 62a of the six-series switch 62 are arranged at the corresponding positions of 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 denotes a disk switch auxiliary lever, which is attached so as to be rotatable around a shaft 64, and is pulled so that the spring hook portion 65a formed in the central portion is brought closer to the spring hook portion 63b of the disk switch lever 63. Spring 66 is biased.

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 disk switch lever 63 is rotated in the re-direction together by the tension spring 66 biased between the disk switch lever 63 and the auxiliary disk switch lever, and one end thereof is pivotally supported by the switch shaft 62b.
When the tip ends 62c 'of the six switch pieces 62c rotatably provided on the series switch 62 come into contact with the disk 2 and stop, and when the disk switch lever 63 further rotates in the redirection, the other end of the switch piece 62c. 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 2 is moved before the movement in the A direction. The roller portion 63c provided at the other end of the switch lever 63 is a sloped surface at one end of the cam portion 14k.
14k 'is configured to rotate in the direction of arrow N to prevent contact between the disk 2 and 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 on the drive rack 14 and fits into the column portion 14c having a concave cross section of the drive rack 14 has one end of the slide piece 68 retained by the seat of the stopper screw 69 to prevent the other end from coming off. The slide piece 68 configured to be constantly pressed in the direction a by
When the tray 1 is driven in the direction of arrow B by 14c 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 is loaded into the loading base 1.
It stops by hitting the stopper portion 12c provided on the second bent portion 12a, and the drive rack 14 slides a certain amount in the direction b.
The tray 1 is not started to move in the direction a, even if the drive rack 14 is driven in the direction a by a predetermined amount, by driving the drive spring 14 and compressing the compression spring 70 by a fixed amount. During a certain amount of drive of the drive rack 14, the roller portion 63c of the disc 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 to move the disc 2 and the switch piece 62c. When the disc 2 is pulled out in the direction of arrow A and moves to a position where it does not come into contact with the switch piece 62c, the roller portion 63c has the inclined surface 14k ″ at the other end of the cam portion 14k, and the disc switch lever 63 is It 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 an eject lever A, and two shafts 34 provided on the lower surface so as to be caulked and fixed in the two holes 71a slide in the elongated holes 7'a of the magazine base substrate 7'in the arrow arrow direction. Fitting is possible.

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 Y 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 arrow A direction.

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 direction of B. When the magazine 3 is inserted into the magazine base 5 by this spring force and the magazine 3 is locked by the magazine lock lever 6, Recess 3b formed on the side wall of 3 and magazine lock lever 6
It is configured so as to eliminate play between the hook portion 6b and the hook portion 6b.

Further, when the magazine 3 is inserted into the magazine base 5 at a rapid speed, the tension spring 73 is stretched 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. Has been done.

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 describe the configuration of the magazine 3 in more detail, the lock base block 75 has a lock lever shaft 77 provided on the lock base 76 to prevent the tray 1 from popping out when the tray 1 is stored along the shelf 3a of the magazine 3. The lock lever 78 is attached so that it can be rotated.
One end 78a is formed in a hook shape so as to prevent the tray 1 from moving in the direction of the arrow a by engaging with the convexly formed lock portion 1c of the tray 1, and the other end 78b is outside the magazine 3. The lock base 76 corresponds to the position of the hole 3c of the magazine 3 by pushing with a finger from the one end 78a of the lock lever 78 and the lock portion 1c of the tray 1 so as to correspond to the position of the hole 3c of the magazine 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, which constantly rotates the lock lever 78 in the direction of arrow E, so that 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, and when the 6 trays 1 stored in the magazine 3 are put in and taken out one by one, the recess 1d formed in the tray 1 is formed in the tray set lever 80 in order to correctly determine the storage position. The protruding portion 80a is configured to push, and the pushing portion 80b of the tray set lever 80, which is attached to the tray set lever shaft 81 provided on the lock base 76 so as to be rotatable, is formed in the lock base 76 in an L-shape. The L-shaped leaf spring 82 attached to the bent portion 76b of the is pressed.

The leaf spring 82 is formed by pressing one leaf spring into a comb shape,
The central part 82a is bent into an L shape. 6
The six tray set levers 80 provided so as to correspond to the respective trays 1 one by one are attached to the six comb-shaped portions 82 of the leaf spring 82.
Each b is 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 at the back 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 so as to be rotatable about a shaft 84 provided on the magazine base substrate 7 in the arrow work direction by a predetermined amount.

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 by moving the differential rack 27 in the direction a. When the tray 1 is pushed by and is rotated in the arrow w direction, the lock release piece 78b of the lock lever 78 is pushed to unlock 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 biased between 83c and the spring hooking portion 7'd of the magazine base substrate 7 so that the lock release lever 83 is rotated in a certain direction by a certain amount.

Reference numeral 86 is a wire spring, and the lock release lever 83 is formed by a spring-like resin material that is configured to bend as the lock release lever 83 rotates in the direction of the arrow and bend as shown by the 83 detailed view in FIG. 11. In order to protect the thin portion 83d from permanent deformation, the thin portion 83d is inserted into U-shaped spring receiving portions 83e and 83f formed on the left and right of the thin portion 83d.

Reference numeral 86a is a Z-shaped bent portion formed at one end of the wire spring 86, and is configured to be inserted into a small hole 83g provided in the lock release lever 83 so as not to come out upward.

Reference numeral 83f 'is an upward stopper for the wire spring 86 formed on the U-shaped spring receiving portion 83 of the lock release lever 83.

Fig. 11 3d shows the eject lever from the recess 3b of the magazine 3.
When the magazine 3 is pushed out in the B direction, the hook portion 6b of the magazine lock lever 6 shown in FIG. 1 is the recessed portion 3d. Press to prevent the overrun of the magazine 3 in the direction of B.
Reference numeral 3e is an opening provided on the side wall of the magazine 3 for detecting the presence or absence of the disk 2.

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 driving voltage is supplied to the lifting motor 35, and the lifting cam 43 and the lifting rack 44 are driven to load the disk. The 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 are switched in the state of FIG. 3 (B).
30 turns on and stops.

At this time, the tray hook block 13 is driven in the direction a together by fitting the protrusion 13a and the pillar of the drive rack 14,
The tray hook 10 pulls out the tray 1 until the center of the turntable 32 of the optical pickup block 31 and the sensor of the disk 2 on the tray 1 are substantially aligned.

Next, the reverse voltage is supplied to the lifting motor 35, the loading base 12 is lowered in the two directions, the limit switch 46 is pushed, and then further lowered by a certain amount and then stopped. 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 to the turn of the optical pickup block 31 and the table 32, and the disc 2 and the tray 1 are fed.
The performance will start with a certain amount of space between and.

When the performance ends, a driving voltage is supplied to the lifting motor 35 by a known combination of the end detection means and the microcomputer, and the loading base 12 moves upward in the direction of "c" and stops at the position where the loading base 12 is initially stored in the computer. .

Next, the reverse voltage is supplied to the motor 22, and the drive rack 14,
The differential rack 27 is driven in the B direction, and the stop switch 29 is turned on at the position shown in FIG. 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 46
Turn ON to stop and stop the operation. Operation button group 59
According to the designation, the six discs in the magazine can be successively played in sequence, the program performance of only the favorite disc, the repeated performance of one disc, etc. can be performed by the combination with the 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 lever 6 and the magazine 3 are unlocked, 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 when the eject lever 33 pushes the differential rack 27 in the i direction, the switch 30 operates differentially. Rack 27 switch pusher
The differential rack 27 is driven off in the direction a until the switch 29 is turned off by the switch pushing portion 27c of the differential rack 27 as shown in FIG.

Further, 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 sequentially arranged and stored, when the magazine 3 is inserted into the player housing 57, the presence or absence of the disc 2 is checked. 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 from the magazine 3. When the disc 2 is taken out and conveyed, and when the disc 2 is taken out and conveyed to a position where the switch piece 62c does not touch the disc 2 by the rotation return of the disc switch lever 63, the disc switch lever 63 can be returned by the pulling spring 66 again. . Further, when the magazine 3 is inserted into the magazine base 5 at a rapid speed, the load of the differential rack 27 causes a tension spring 73.
Since the insertion speed of the magazine 3 is relaxed and the pushing speed of the magazine 3 is moderated, the pushing portion 27b of the differential rack 27 pushes the oblong hole 14h ′ of the drive rack 14 too much, and the drive rack 14 advances too much in the direction a. It can be prevented.

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 driving rack 14 are driven in this order in the direction of arrow A by the drive of the, the pushing portion 27b of the differential rack 27 pushes the convex portion 83b of the lock release lever 83 and rotates it in the direction of the arrow w to move the tray. 1 and the lock lever 78 are unlocked.

At the initial stage when the drive rack 14 is driven in the direction a,
As described with reference to 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 will not move. Even if you proceed in the direction, it does not proceed in the direction y. Therefore, the tray 1 is not pulled out in the direction a. At this timing, tray 1 and lock lever
When the lock of 78 is released and the drive rack is further driven in the a direction, the slide piece 68 pushes the stopper 69, drives the tray hook block 13 in the a direction, and pulls out the tray 1. When the drive rack 14 is further driven in the direction a,
11 The push lever 27b of the differential rack
The lock release lever 83 is pivotally returned by the pulling spring 85 in the direction of "a" from the convex sloped portion 83b of 3 and the tray 1 in the magazine 3 is locked by the lock lever 78 again.

When the tray 1 is driven in the B direction and stored in the magazine 3 after the performance is finished, 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. , And returns to the original position shown in FIG.

When the lock release lever 83 is pushed by the push portion 27b of the differential rack and is rotated in the arrow w direction, the convex portion 83a at one end pushes the lock lever 78 and the thin portion 83d bends, but the U-shaped spring receiving portions 83e, 83f. By the wire spring 86 inserted in, the permanent deformation of the thin portion 83d can be prevented and the deterioration of the spring effect can be prevented.

Further, the hook portion 6b of the magazine lock lever 6 pushes the concave portion 3d, so that the overrun of the magazine 3 in the direction B can be prevented.

As described above, according to the present invention, a magazine for sequentially arranging and storing a plurality of disks, a concave portion having an inclined surface formed on the outer peripheral wall of the magazine, and a hook portion at a position facing the concave portion are provided. Since the magazine lock lever is provided, and the hook portion is pressed against the concave portion having the inclined surface to prevent the magazine from popping out, a multi-practice that can perform an accurate magazine pushing operation with a simple structure. A disc player can be provided.

[Brief description of 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 entire 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. FIG. 13 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 ... Disc, 3 ... Magazine, 3b ... Engaging recess, 3d ... Recess with inclined surface, 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, 16,19,21,2
5,37,40,42 …… 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 …… Pulling 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 …… Lift cam, 44 …… Lift rack.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Soichi Kimura 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Toshihiro Kaneo 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. In the company

Claims (1)

(57) [Claims] 1. A magazine lock having a magazine for accommodating a plurality of discs arranged in order, an engaging recess formed in an outer peripheral wall of the magazine and a recess having an inclined surface, and a hook portion at a position facing the recess. A lever, the hook is engaged with the engaging recess to fix the magazine, and the hook is pressed against the recess having the inclined surface to prevent the magazine from popping out. Multi-disc player.