JPH01204264A - Multidisk player - Google Patents

Abstract

PURPOSE:To prevent the spring effect from deteriorating by inserting a metal wire spring hard to become permanently deformed into U-shaped spring bracket parts formed on both ends of a thin wall part consisting of resin molded products. CONSTITUTION:An unlocking lever 83 provided between a pressing part 27b of a differential rack 27 and a locking lever is constituted to be turnable around a shaft 84 provided on a magazine base plate 7 in the directions of (c) and (d) to a fixed extent. The wire spring 86 is inserted into the U-shaped spring brackets 83e and 83f formed on the right and left of the thin wall part 83d for the purpose of protecting the thin wall part 83d of the unlocking lever 83 formed of a spring resin material in its bendable constitution from the permanent deformation. By this method, the spring effect of the thin wall part can be prevented from deteriorating.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a disc player, and more particularly to a multi-disc player that can store a plurality of discs and can sequentially select any stored disc for continuous play. Regarding Yah.

Conventional technology In recent years, various digital audio discs have been released.
Its usage is rapidly increasing, and various multi-disc players that can play 6 to 10 discs in sequence have been developed. Many of these multi-disc players are of the type that perform continuously while moving the entire optical pickup block, which reads signals using laser light, up and down. The mechanism used to do this was complicated and expensive.

The conventional multi-disc player mentioned above will be explained below.

FIG. 13 shows a conventional multi-disc player. 1st
In FIG. 3, the disk holding portion 101 & of the tray 101
The disks 1o2 placed on the disks 1o2 are arranged and stored in order on shelves 103a formed in six stages of the magazine 103, and can be pulled out and stored at will.

Reference numeral 104 denotes a mechanism body of the multi-disc player, and the magazine 103 is always stored in a fixed position in a magazine base 105 which is formed in a U-shape and is used to store a magazine.

106 is a magazine push lever, and the magazine 1 is always
The tension spring 1 is pushed in the A direction by the insertion of 03.
07 to push it out toward the mouth.

Reference numeral 108 denotes a magazine lock lever for locking the magazine, which is engaged with a recess 103b formed in the side wall of the magazine 103 by a pull spring 109 to lock the magazine 10.
3 is configured to prevent extrusion toward the mouth.

110 is a plunger, and when the magazine 103 is taken out, the lock lever 108 and the magazine 103 are connected by energization.
by releasing the engagement with the recess 103b formed in the side wall of the
The magazine 103 is configured to be pushed out by a magazine pushing lever 106.

Reference numeral 111 denotes a speed control device for controlling the extrusion speed of the magazine, and is configured to be in pressure contact with the magazine extrusion lever 106 to control the extrusion speed of the magazine 103.

Reference numeral 112 denotes a tray hook, which is configured to slide toward the e-mouth while being guided by a guide shaft 114 provided on a loading pace 113 for feeding the tray 101 to the performance start position.

115 is a tray footer drive motor provided on the loading pace, which includes a pulley 116° and a belt 117.
As a result, the tray hook 112 is driven in the e-port direction, and the recess 101b provided in the tray 101 engages with the tray hook 112, and the tray 101 is removed from the magazine 103.
It is structured so that it can be pulled out and stored.

A tray guide 118 is provided on the loading base 113 and is used to guide the tray 101 onto the turntable 120 of the optical pickup block 119 to start playing the disc 102.

121 is a screw, loading base 1
In order to raise and lower the loading base 113 vertically while holding it horizontally, the loading base 113 is engaged with female screw portions 122 provided at three places around the loading base 113 to raise and lower the loading base 113 up and down.

Reference numeral 123 is a timing belt for driving the three screws by meshing with a small gear 124 provided at the bottom of the three screws 121, and is configured to be driven by a lift drive motor 125.

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

When the magazine 103 containing the six disks 102 and the tray 101 is inserted into the magazine pace 106, it is locked in place by the pushing force of the magazine push lever 106 and the magazine lock lever 108.Next, the loading base 113 is the lifting drive motor 126
is raised and lowered by the rotation of the tray hook 112 and tray 1.
It stops at a height where the recess 101b of No. 01 engages.

Subsequently, the tray hook drive motor 116 rotates normally, the tray hook 112 pulls out the tray 101 in the A direction, and the center of the disk 102 is placed on the turntable 122.
When it reaches the center of the track, it will stop and start playing.

When the performance is finished, the tray hook drive motor 116 reverses, and the tray hook 112 pushes the tray 101 back in the direction of the arrow and stores it in the magazine 103.

When the plunger 110 is energized, the engagement between the magazine lock lever 108 and the recess 103b of the magazine 103 is released, and the magazine 103 is
06 toward the mouth, and can be taken out from the multi-disc player main body 104.

Problems to be Solved by the Invention However, in the above configuration, a strong lifting structure is required because the loading base 113 incorporating the heavy optical pickup block 119, tray hook drive motor, etc. is raised and lowered by the three screws 121. Moreover, the overall structure was complicated and expensive. Furthermore, since the loading pace 113 as a whole is heavy, it is difficult to increase the speed of elevation.

In addition, the extrusion structure of the magazine is a plunger.

Since it is composed of a combination of magazine ejector, lever, speed control device, etc., there is no pusher sound.
There were problems such as the stabilization of the extrusion speed being somewhat insufficient.

In view of the above problems, the present invention has a structure in which the tray lock lever is locked by pressing the lock release lever when the tray is pulled out from the magazine, so that the tray hook drive motor is shared and the magazine is pushed out. The objective is to provide a multi-disc player that is inexpensive and has little original sound.

Means for Solving the Problems and Technical Means of the present invention for solving the above problems is to form a thin part in a part of the resin molded part for unlocking the tray lock lever, and to have U-shaped parts at both ends of the part. A spring receiving portion is formed, and a wire spring is inserted through the U-shaped spring receiving portion to prevent deterioration of the spring effect of the thin portion.

action The effect of this technical means is as follows.

The U-shaped spring receivers formed at both ends of the thin-walled portion, which is made of resin molding that is easily permanently deformed, have a structure that absorbs variations in the amount of push by bending the thin-walled portion. By inserting a metal wire spring, it is possible to prevent deterioration of the spring effect of the thin part.

EXAMPLE A multi-disk brayer according to an example of the present invention will be described below with reference to the drawings.

In FIG. 2, the disk 2 placed on the disk holding portion 1a of the tray 1 is placed on a shelf 3 formed in six stages of the magazine 3.
They are arranged and stored in order in a, and can be pulled out and stored at will.

Reference numeral 4 denotes a mechanism main body of the multi-disc player of the present invention, and the magazine 3 is always in contact with a stopper 5a formed on the magazine base 5 in a magazine space 6 which is formed in a U-shape and is used to store a magazine. It is inserted up to the position.

Reference numeral 6 designates a magazine lock lever that prevents the magazine 3 inserted into the magazine base 5 from coming out, and is configured so that it can rotate around a mounting shaft 8 on the magazine pace board 7 provided at the bottom of the magazine base 5. has been done.

Reference numeral 9 denotes a lock lever pulling spring for rotating the magazine lock lever 6, which is provided between the spring hook 6a provided on the upper part of the magazine lock lever 6 and the spring hook portion 7a provided on the magazine pace board 7. is energized by

6b is a hook formed at the tip of the magazine lock lever 6, which passes through the opening 5b formed in the magazine base 5, engages with the recess 3b formed in the side wall of the magazine 3, and locks the magazine 3. It is constructed to prevent it from popping out.

1o is a tray hook that engages with the recess 1b of the tray 1 stored in the magazine 3 to pull out the tray 1, and is used to bend the loading space 12, which is provided with tray guides 11 at both ends to guide the tray 1. A tray hook is provided on the block 13 and is configured to be able to slide along the portion 121L in the direction of the e-mouth.

14 drives the tray 1 toward the e-port and loads the magazine 3.
Train block 13 for taking out and storing spiders.
This is a drive rack for driving the mechanism body 4 in the E-exit direction, and is configured such that guide parts 14a and 14b provided at the lower part engage with the bending part 4a of the mechanism main body 4 and can slide in the E-exit direction.

Reference numeral 140 denotes a column having an upwardly concave cross section and is provided at one end of the drive rack 14, and is a tray hook block 13.
Convex part 13! It is configured so that it can be slid up and down by engaging the L. FIG. 3 is an exploded view of the multi-disc player of the present invention. Reference numeral 16 rotates around a shaft 16 provided on the mechanism body 4, and engages with teeth 14C of the drive rack to drive the drive rack in the direction of the e-mouth. It is a drive gear that

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

2o is a drive pulley 18 provided to rotate around a shaft 21, and a pulley 2 provided above a motor 22.
3 is a belt for transmitting the rotation of the motor 22 to the drive pulley 18.

A gear set lever 24 is provided so as to be rotatable around a shaft 25, and a gear set spring 26 is biased between a concave portion 24a at one end and a spring hook portion 4b provided on the mechanism body 4. There is.

24b is a convex portion provided at the other end of the gear set lever 24, and the drive rack 14 is connected to the drive gear 1 as shown in FIG.
5, the slope 14e of the convex portion 14d of the drive rack 14 is pushed further toward the mouth, thereby separating the missing teeth 14b of the drive rack 14 from the drive gear 15.

In this position, the tray hook 10 is fitted into the recess 1b of the tray 1 housed in the magazine 3 with a certain gap, and is configured to be movable in the hone direction.

27 is a differential rack that pushes the magazine 3 toward the mouth. It is slidably provided at the bottom of the drive rack 14, and engages with the drive gear 15 to drive the magazine 3 toward the mouth, so that the teeth of the drive rack 14 The center line of the differential rack 1ag and the center line of the teeth 27a of the differential rack 2 are configured to be on the same line in a plane.

Reference numeral 27b is a push-out portion that pushes out the magazine 3 that protrudes upward from the surface of the elongated hole 14h of the drive rack 14, and the end portion 14h of the elongated hole of the drive rack 14 is constantly pressed by the tension spring 28.
It is structured so that it can be drawn up to '. At this time, the teeth 14g of the drive rack 14 and the teeth 27& of the differential rack 27 are configured so that their peaks and valleys match.

Figure 4 shows the state in which the tray hook 10 stores the tray 1 in the magazine 3, and the mechanism body 4.
The switch 29 provided above is pressed by a switch pusher 27C provided on the differential rack 27 and is turned on.
The switch 30 is configured to be in an OFF state during winter.

When the interlocking gear 15 rotates in the direction of the arrow in FIG.
4, the differential rack 27 engages with the drive gear 15 and advances toward the opening, and when the engagement with the differential rack 27 is completed and the drive rack 14 is further driven in the direction A, the end 27d of the differential rack 27 engages with the mechanism. Stopper part 4 of main body 4
When the drive rack 14 advances further in the direction A, the differential rack 27 slides on the drive rack 14, and when the state shown in FIG. When the center of the disk 2 placed on the tray 1 is pulled out, the center of the disk 2 placed on the tray 1 is placed on the known optical pickup block 3 provided on the mechanism body 4 as shown in FIG.
This shows a state where the turntable 32 of No. 1 is stopped at the center.

At this time, the switch 29 is in the OFF state, and the switch 3o
is configured in a positional relationship such that it is pressed by the convex portion 14d of the drive rack 14 and is in the ON state.

Next, when the drive gear 15 is reversed as shown by the arrow in FIG. 141.

Further, when the drive rack 14 is driven in the direction of the mouth, the differential rack 27 and the drive rack 14 are both engaged with the drive gear 15, so that the drive gear 15 and the drive rack 14 are engaged with each other as shown in FIG.
When the engagement is disengaged and the drive rack 14 is further pushed toward the mouth by the gear set lever 24, the end portion 14j of the drive rack 14 hits the stopper 4 of the mechanism body 4.
It stops when it comes into contact with d.

When the drive gear 15 further rotates in the direction of the arrow in FIG. 4C, only the differential rack 27 is driven in the opening direction, and as shown in FIG. , press the curved lip part 6C formed below the magazine lock lever 6, and press the magazine lock lever 6.
6 in the direction of the arrow, the hook part 6b formed at the tip of the magazine lock lever 6 is unlocked from the recess 3b formed in the side wall of the magazine 3, and the differential rack 27 is also opened. When the eject lever 33 is driven in the direction shown in FIG. Become.

The eject lever 33 is configured so that a shaft 34 provided on the magazine base board 7 and a long hole 33b fit together so that it can slide a certain amount in the direction of the earth, and a bent portion 33c at one end is configured so as to push out the lower part of the magazine 3. There is.

At this time, the switch 29 is turned on by the switch pusher 27e of the differential rack 27, and the switch 3o is turned on by the switch pusher 27b of the differential rack 27.

When the magazine 3 is inserted into the magazine base 5 as shown in Fig. 4 and Fig. 6, the magazine lock lever 6 is rotated in the direction of arrow H by the tension spring 9, and a hook portion is inserted into the recess 3b provided on the side wall of the magazine 3. 6b is engaged and the magazine 3 is locked so that it does not come out toward the mouth.

The eject lever 33 is pushed in the A direction and drives the push-out portion 27b of the differential rack 27 in the A direction.

At this time, the switch 3o separates from the switch push part 27b of the differential rack 2 and turns OFF, and the switch 29 also separates from the switch push part 275 of the differential rack 27 and turns OFF.
Then, the motor 22 rotates and the drive gear 15 is rotated in the direction of the arrow in Figure 4, so that only the differential rack 27 is driven in the direction of A and stops in the state shown in Figure 4.

When the differential rack 2 is driven by the motor 22 and moves in the A direction, the lip portion 6C of the magazine lock lever 6 is pressed against the slope of the push portion 27b' which has an inclined surface as shown in FIG.
Push up in the direction of G and pass.

The magazine lock lever 6 is made of a springy resin material such as polyacetal resin, and is made thin.
) 6d bends when pushing up the 011 rib portion 6C in the
After passing through the lip portion 6C, the lip portion 6C is configured to return to the direction of the arrow.

35 is a lifting motor, and a belt 39 is provided between a pulley 36 provided at the top and a pulley gear 38 configured to rotate around a shaft 3 provided in the mechanism body 4.

An intermediate gear 41 provided to rotate around a shaft 40 is a gear part 43 of an elevating cam 43 provided to rotate around a shaft 42! It is configured to mesh with L and the pulley gear 38.

In FIG. 6, reference numeral 44 denotes an elevating rack provided at the lower part of the loading base 12, and is configured to engage with the elevating cam 43 to move the loading base 44 up and down in the hone direction.

43b is a sensor wall portion formed in a ring shape at the lower part of the elevating cam 43, and has a slit portion 43b' formed therein.

Numeral 45 is a photoelectric switch configured to count the number of rotations of the elevating cam as it passes through the slit portion 43b'.

The gap between the teeth of the lifting rack 44 is the same as the gap between the shelves 3a of the magazine 3, and the structure is such that one revolution of the lifting cam 43 moves one tooth.

46 is a limit switch, and when the elevating rack 44 descends in two directions and the tray hook 1o falls below the position of the lowest shelf of the magazine 3, a convex portion 44IL formed on the elevating rack 44 turns on the limit switch 46. It is structured like this.

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

Reference numeral 6b denotes teeth provided at both ends of the magazine base 6, which are configured to mesh with the timing gear 47. Guide portions 482L, which are configured to protrude outside the timing gear 47 at both ends of the gear shaft 48, are provided at both ends of the magazine base 5. The timing gear 47 is configured to fit into guide grooves 5c formed at both ends of the magazine base so that the timing gear 47 does not come off the toothed portion 5b of the magazine base.

Reference numerals 49 and 50 designate a lifting lever for raising and lowering the loading base 12 while holding it horizontally, and a lifting auxiliary lever, which are provided in pairs on each side of the loading base 12.

A shaft 51 provided on the loading base 12 is fitted into a hole 49a provided at one end of the elevating lever 49 for pivotal support, and a shaft 52 provided at the center of the elevating lever 49 is provided at the center of the elevating auxiliary lever 5o. The shaft 53 fitted in the elongated hole 50& and provided at the other end of the elevating lever 49 is attached to the elongated hole 64 of the mounting portion 64 and 64' provided on the mechanism body 4! L and 54a
'The hole so inserted into the lifting assist lever 60
b, support portions 55 and 65' provided on the mechanism body 4;
By inserting and supporting the shafts 551L and 55a' and inserting the shaft 56 provided in the loading base 12 into the elongated hole SOC provided at the other end of the elevating auxiliary lever 50, the shaft 51 can be moved in the convex direction. When the lift lever 49 is
The shaft 52 lifts the upper part of the elongated hole 50a of the elevating auxiliary lever 50, and the elongated hole SOC of the elevating auxiliary lever 50 drives the shaft 56 provided in the loading base 12 in the convex direction by the amount that the shaft 61 is driven in the convex direction. By doing so, the loading base 12 is held horizontally.

FIG. 7 shows the entire multi-disc player of the present invention, and the front panel 58 of the player housing 57 has an opening 58a for mounting the magazine 3 for storing discs in the brake housing sink 5. is provided.

Furthermore, on the front panel 58 are a group of operation buttons 59 and a display section 6 for operating the multi-disc player.
0 is set.

Reference numeral 4 designates the mechanism body of the multi-disc player of the present invention, which is constructed within the pre-key housing 5.

7 to 10 will explain another embodiment of the multi-disc player of the present invention with reference to the drawings.

In FIG. 7, 61 is a disc display section provided on the front panel 58, and the magazine 3 is connected to the brake key housing 5.
When installed in the magazine 3, the six contacts 62a of the white switch 62 are configured to light up and display only the six shelves 3& of the magazine 3 where the disks are stored. It is configured at a position corresponding to the shelf 3a.

Reference numeral 63 denotes a disk switch lever configured to be able to rotate around a shaft 64 provided at the end of the magazine base board.
It is configured to be inserted and fixed.

Reference numeral 65 denotes a disc switch auxiliary lever, which is mounted so as to be able to rotate around a shaft 64, and is connected to the disc switch lever 63 from a spring-loaded portion 65a formed in the center.
A tension spring 66 is biased to draw the spring hooks 63b toward each other.

65b is a pushing part provided at one end of the disc switch auxiliary lever 65, and when the magazine 3 is inserted into the magazine base 5, it is pushed by the inclined part 33d formed at the tip of the eject lever 33, and the disc switch auxiliary lever 65 is pushed. 65 is configured to rotate in the direction of the arrow. At this time, the disc switch lever 63 and the disc switch auxiliary lever are rotated in the same direction by a tension spring 66, and one end is pivotally supported by the switch shaft 62b, so that the disc switch lever 63 can be rotated into the six-switch switch 62. The tips 620' of the six switch pieces 62C provided in the same manner come into contact with the disk 2 and stop, and the disk switch lever 6
When the switch piece 62c rotates in the 3-way direction, the other end 62 of the switch piece 62c
C' is configured to push the contact 62a to turn it off.

Reference numeral 67 denotes a spring hooking portion 65C provided on the disk switch auxiliary lever 65 and a spring hooking portion 7 of the magazine base board 7.
A tension spring is applied between the magazine 3 and b.
is not in the magazine base 5, the disk switch lever 63 is rotated in the N direction to keep the 6-switch switch 62 away from the disk 2.

14 is a cam portion formed on the upper part of the drive rack 14, and when the drive rack 14 is driven in the direction of the arrow A and the disk 2 is taken out from the magazine 3 and transported, the cam portion is provided before the disk 2 starts moving in the direction of the arrow A. disc switch lever 63
The roller portion 63C provided at the other end is connected to the cam portion 14.
The slope 14 at one end of the switch 620 is configured to rotate in the direction of the arrow N to prevent contact between the disk 2 and the switch piece 620.

At this time, as shown in Figure 10, the tray hook block 1
Slide the recess 13a provided in the drive rack 1 by a certain amount.
A slide piece 68 having a convex portion 68 & that fits into the column 14C having a concave cross-section of No. 4 is prevented from being pulled out by the seat of a stopper screw 69, and the other end is always pressed in the A direction by a compression spring 70. 68 is moved in the direction of the arrow by the pillar portion 14C having a concave cross section of the drive rack 14, and when the tray 1 is returned and stored in the magazine 3 by the tray hook 1o, the tray hook block 13
One end 13b is the bent portion 12a of the loading base 12.
The slide piece 68 is stopped by hitting a stopper part 120 provided in the drive rack 14 in the direction of the fixed amount opening,
Since the compression spring 7o is configured to be compressed by a certain amount and then stopped, even if the drive rack 14 is driven by the certain amount in the A direction, the tray 1 does not start moving in the A direction.
While the drive rack 14 is being driven by a certain amount, the roller portion 63C of the disk switch lever 63 is rotated in the direction of the arrow `` by'' on the inclined surface 14 at one end of the cam portion 14 of the drive rack 14, thereby rotating the disk 2 and the switch. When the disk 2 is pulled out in the direction of arrow A to prevent contact with the piece 620 and moves to a position where it does not come into contact with the switch piece 62C, the roller part 63C falls onto the inclined surface 14 at the other end of the cam part 14. , the disc switch lever 63 is configured to rotate back in the direction of the beam.

FIG. 11 shows another embodiment of the multi-disc player of the present invention, which will be explained with reference to the drawings.

In Fig. 11, Ryo 1 is the eject lever, which has two shafts 3 provided on the bottom surface so as to be fixed by caulking into the two holes 71a.
4 is slidably fitted into the elongated hole 7'5L of the magazine base board 7' in the direction of arrow E.

Reference numeral 72 is an eject lever B, and the shaft 34 that fits into the two elongated levers 72a is inserted into the two holes 71 of the eject lever 1.
The eject lever B72 is configured to be able to slide a certain amount on the eject lever 71 by caulking the eject lever B72 onto the eject lever B71.

Reference numeral 73 denotes a tension spring, which is biased so that the splashing portion 71C provided on the ejector lever member 71 and the springing portion 72b of the ejector lever B72 are attracted to each other.

Reference numeral 71d denotes an L-bent portion rj installed at one end of the eject lever 71, and when the magazine 3 is inserted into the magazine base 5, the lower part of the magazine 3 is pushed, and the eject lever 71 and the eject lever 872 are both moved in the direction of the arrow. The inclined portion 716 provided on the eject lever lever 71 rotates the disk switch auxiliary lever 65 in the direction indicated by the arrow, and the push portion 72c provided on one end of the eject lever BT2 moves in the direction indicated by the arrow. The pusher 27b of the movable rack 27 is pushed in the direction of arrow A.

74 is a magazine pressing spring, and the magazine base board 7
The spring-loaded parts 7'b, 7'0, and 7'd are biased so that one end 74a pushes back the pushing part 71b of the eject lever A71 by a certain amount toward the mouth, and this spring force pushes the magazine 3 to the magazine base 5 and the magazine 3 is locked by the magazine lock lever 6, to eliminate play that occurs between the recess 3b formed in the side wall of the magazine 3 and the hook part 6b of the magazine lock lever 6. It is configured.

Also, when the magazine 3 is inserted into the magazine base 5 at a rapid rate, the tension spring 73 is stretched by the load of the differential rack 27, and the insertion speed of the magazine 3 is relaxed, so that the speed is transmitted to the pushing part 27 of the differential rack. It is configured.

FIGS. 1, 11, and 12 are embodiments that best represent the features of the multi-disc player of the present invention, and will be described with reference to the drawings.

In the figure, magazine 3 is a flat box-shaped magazine case 3.
-1, the bottom plate 3-2, and a tray lock base block 76 for locking and clamping the tray 1.

To explain the structure of the magazine 3 in more detail, the lock base block 75 has a lock lever shaft 7 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. ``l:H'' The lock lever 78 is attached so as to be rotatable, and one end 78a of the lock lever 78 engages with the convexly formed lock portion 1C of the tray 1, causing the tray 1 to move in the direction of arrow A. The other end 78 is formed into a hook shape to prevent
Reference numeral b denotes a lock release piece that is pressed from outside the magazine 3 with a finger to release the lock between the one end 78a of the lock lever 78 and the lock portion 1C of the tray 1, and is a hole 3c of the magazine 3.
The lock base 76 is attached to the magazine case 3-1 and the bottom plate 3-2 so as to correspond to the position shown in FIG.

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

9 is a lock spring.In order to constantly rotate the lock lever 78 in the direction of the arrow O, the center part is inserted into the lower part of the lock lever shaft 77, and one end 79a is inserted into the bent part 76 of the lock base 76.
&, and the other end 79b is pressed against a convex portion 780 formed at the lower part of the lock lever 78 to apply spring pressure.

Reference numeral 80 is a tray set lever, which is used when loading and unloading the six trays 1 stored in the magazine 3 one by one.
In order to correctly determine the storage position, a convex portion SOa formed on the tray set lever 80 is configured to push a concave portion 1d formed on the tray 1. Pushing part 8ob of tray set lever 80 attached so that it can rotate
The L-shaped bent portion 76b formed on the lock base 76
An L-shaped leaf spring 82 attached to the holder is configured to push the holder.

The leaf spring 82 is a single leaf spring press-molded into a comb shape and its central portion 822L is bent into an L shape.6
The six comb-shaped portions 82b of the leaf spring 82 are configured to individually push six tray set levers 80, one for each tray 1.

Reference numeral 76c is a rotation preventing portion bent upward on the lock base 6, and is connected to one end 80 of the tray set lever 8o.
It is constructed so that the rotation is prevented by contacting the ring c.

3d is a lip provided at the back of the magazine case 3-1, and is a stopper when the tray 1 is inserted into the magazine 3.

83 is the pushing part 27b of the differential rack 27 and the lock L/
) It is a lock release lever provided between Z-78 and is configured so that it can be rotated by a certain amount in the direction of the arrow worker around a shaft 84 provided on the magazine base board 7.

83a is a convex portion provided at one end of the lock release lever 83; a convex inclined portion 83 provided at the other end of the lock release lever 83;
When b is pushed by the pushing part 27b of the differential rack 27 and rotated in the direction of the arrow W by the movement of the differential rack 27 in the A direction, the tray 1 is locked by pushing the lock release piece part 78b of the lock lever 78. Release and move tray 1 to magazine 3
It is configured so that it can be pulled out in the A direction.

Reference numeral 85 denotes a tension spring which is biased between the spring hooking portion 83c of the lock release lever 83 and the spring hooking portion 7'd of the magazine base board 7 so as to always rotate the lock release lever 83 by a certain amount in the force direction. has been done.

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

86a is a Z-shaped part 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' prevents the wire spring 86 formed in the U-shaped spring receiving portion 83 of the lock release lever 83 from being pulled out upward.

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

First, when the disc to be played is designated by operating the operation button group 59 shown in FIG.
By driving the elevating rack 44, the loading base 12 rises in the C direction and stops at the designated disk position. This position is determined by the count of the photoelectric switch 45 in combination with a known microcomputer.

Subsequently, a driving voltage is supplied to the motor 22, and the driving rack 14 and the differential rack 27 are driven in the A direction by engagement with the driving gear 15, and the switch 3o is turned on and stopped in the state shown in FIG. 4B. ' At this time, the tray hook block 13 is driven in the direction by the engagement of the convex part 13a with the pillar part of the drive rack 14, and the center of the turntable 32 of the optical pickup block 31 and the tray 1 are driven together.
, and upper disk 2, the tray hook 1o pulls out the tray 1 until the centers of the upper disk 2 are almost aligned.

Next, a reverse voltage is supplied to the lifting motor 35, and the loading base 12 is lowered in two directions, and after pressing the limit switch 46, it is further lowered by a certain amount and then stopped. This lowering position is determined by the count number of the photoelectric switch 45 in combination with a known microcomputer.

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

When the performance is finished, a drive voltage is supplied to the lifting motor 35 by a combination of a known end detection means and a microcomputer, and the loading base 12 rises in the direction C to remove the first one stored in the computer. Stop in position.

Next, a reverse voltage is supplied to the motor 22 and the drive rack 14
, the differential rack 27 is driven toward the mouth and stops at the position of the person in FIG. 4, and the switch 26 is turned on.

At this time, the tray 1 and the disk 2 are stored in the magazine 3.

Subsequently, a reverse voltage is supplied to the lifting motor 35, the loading base 12 is lowered in two directions, and the limit switch 46 is turned on to stop and complete the operation. By specifying the operation button group 59, it is possible to perform continuous playing of six discs in the magazine, program play of only a favorite disc, repeat play of one disc, etc. in combination with a known microcomputer. .

When the eject button of the operation button group 59 shown in FIG. 7 is operated when taking out the magazine 3 from the player housing 67, only the operating rack 27 is driven in the opening direction as shown in FIG. 4C, and then the magazine lock lever is activated. 6, after the lock of the magazine 3 is released, the eject lever 33 is pushed toward the mouth, and the magazine 3 can be pushed out toward the mouth and taken out. At this time, both switches 29 and 30 are in the ON state.

When inserting the magazine 3 into the player housing 67, the magazine 3 pushes the eject lever 33 in the A direction as shown in the fourth figure, and when the eject lever 33 pushes the differential rack 27 in the A direction, the switch 3o switches the differential rack 27 The switch 29 moves away from the switch push part 27f of the differential rack 27 and turns OFF, and the switch 29 moves away from the switch push part 27f of the differential rack 27, as shown in FIG.
The differential rack 27 is driven in the A direction until it is turned ON by the signal C.

Furthermore, when the magazine 3 is inserted into the pre-key housing 5, the switch piece 82C of the six-switch switch 62, which is provided at a position corresponding to each side 31L of the magazine 3 in which the disks 2 are sequentially arranged and stored, approaches the disk 2. Detects the presence of
A light is displayed on the disc display section 61.

Next, before taking out the disk 2 from the magazine 3 and transporting it, the disk switch lever 63 is rotated by the cam portion 14k of the drive rack 14 to a position where the switch piece 62c does not come into contact with the disk 2, and then the disk 2 is removed from the magazine 3. When the disc 2 is taken out and transported to a position where the switch piece 620 does not touch the disc 2 by the return of rotation of the disk switch lever 63, the tension spring 66 allows the disc switch lever 63 to return to rotation again. I can do it. Also, 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, and the insertion speed of the magazine 3 is relaxed, so that the pushing part 27b of the differential rack 27 is pushed into the drive rack. 14 elongated hole 14h' is pushed too far and the drive rack 1
4 can be prevented from moving too far in the A direction and causing the tray to be pulled out incorrectly.

The positional relationship between the drive rack 14 and the differential rack 27 in FIG. 1 is as shown in FIG. 4, and in this state, the drive gear 1
When the differential rack 2 and the drive rack 14 are driven in the direction of the arrow A in this order by the drive of the differential rack 27, the pushing part 27b of the differential rack 27 pushes the convex part 83b of the lock release lever 83.
Rotate in the direction of arrow W to unlock the tray 1 and the lock lever 78.

At the initial stage when the drive rack 14 is driven in the A direction,
As explained in FIG. 10, the tray hook block 1
3 is pressed against the stopper part 12c of the loading pace 12 and the compression spring 70 is compressed, so even if the drive rack 14 moves in the A direction, the tray hook 1o does not move in the A direction even if it moves in the A direction. Therefore, the tray 1 cannot be pulled out in the A direction. At this timing, tray 1
When the lock lever 78 is unlocked 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 A direction, the push portion 27b of the differential chic shown in FIG.
3, the lock release lever 83 is rotated back in the force direction by the tension spring 85, and the tray 1 in the magazine 3 is released again from the lock lever 78.
locked by

When the performance is finished and the tray 1 is driven toward the opening and stored in the magazine 3, the pushing section 2 of the differential swing presses the convex inclined section 83b of the lock release lever 83 and rotates toward the opening. Then, it returns to its original position as shown in Figure 4.

When the lock release L/bar 83 is pushed by the pushing part 27b of the differential thick and rotated in the direction of the arrow W, the convex part 83& at one end pushes the lock lever 78 and the thin part 83d bends, but the U-shaped spring receiving part 83e , 83f can prevent permanent deformation of the thin portion 83d and prevent deterioration of the spring effect.

Effects of the Invention As described above, according to the present invention, a thin part is formed in a part of the lock release lever formed of a resin molded part, and U-shaped parts are formed at both ends of the lock release lever.
To provide a multi-disc player with a simple structure in which a spring receiving part is formed in a shape of a letter and a wire spring is inserted into the spring receiving part in the shape of a letter U, thereby preventing deterioration of the spring effect of the thin part. I can do it.

[Brief explanation of the drawing]

1 and 2 are enlarged views and perspective views of main parts showing the mechanism of a multi-disc player according to an embodiment of the present invention, and FIG.
The figure is an exploded view of the mechanism, Figure 4 is a plan view of the mechanism to explain the horizontal drive operation of the multi-disc player, Figure 5 is a perspective view to explain magazine locking and release, and Figure 6 is a vertical view of the loading base. FIG. 7 is a perspective view showing the entire multi-disc player according to an embodiment of the present invention; FIG. 8 is a plan view illustrating another embodiment;
9 and 10 are perspective views for explaining the details of the present invention; FIGS. 11 and 12 are perspective views and plan views for explaining the invention in detail; FIG. 13 is a front view and a right side view; The figure is a perspective view showing a conventional multi-disc player. 1...Tray, 2...Disk, 3...-
... Magazine, 4 ... Mechanism body, 5 ...
・Magazine pace, 6...Magazine lock lever
17...Magazine base board, 8...
Mounting shaft, 71...Eject lever, 72...
...Eject lever B, 74...Magazine push spring, 75...Lock pace block, 78...
...Lock lever 180...Tray set lever 182...Plate spring, 83...Lock release lever, 86...Wire spring. Name of agent: Patent attorney Toshio Nakao and 1 other person14
-8 Kin Uzuku Figure 5 27-0 push, 5,1533a- push; 3 t-JL 4. Figure 58- Front panel Figure 7 Do-≠Isk 3-Magajin+4-J2 powder rack 33-・-Eject lever 62-6 tSwitch 8-Multiple issuance lever K- --'j-Inuk switch trace lever Figure 9

Claims (1)

[Claims] A thin-walled portion is formed in a part of the lock release lever that releases the locking operation of the tray lock lever, and U-shaped spring receiving portions are formed at both ends of the thin-walled portion, and a wire spring is inserted into the U-shaped spring receiving portion. A multi-disc player characterized in that the multi-disc player is configured to prevent deterioration of the spring effect of the thin wall portion.