JPH01204265A - Multidisk player - Google Patents

Abstract

PURPOSE:To obtain an inexpensive and noiseless multidisk player by starting a driving gear to be meshed with a differential rack upon completion of meshing of a driving rack with the driving gear and stoppage of them. CONSTITUTION:The player is provided with the driving rack 14 for taking out a disk 2 from a magazine 3 to transfer and for housing transfer of it by meshing with the driving gear 15, and the differential rack 27 provided slidably in the lengthwise direction of the driving rack 14 to a fixed extent. When the driving gear 15 is dismeshed from the driving rack 14, the latter is commenced to be meshed with the differential rack 27 to push out the magazine 3, thus constituting the player. By this method, the need for a plunger is eliminated, and hence the multidisk player having a quiet and simple structure without plunger noise can be formed at low cost.

Description

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

Conventional technology In recent years, various digital audio discs have been released.
As the usage of these discs has increased rapidly, various multi-disc players have been developed that can play 6 to 10 discs continuously. Many of these multi-disc players are of the type that performs 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 101a of the tray 101
The disks 102 placed on the magazine 103 are sequentially arranged and stored on shelves 103a formed in six stages of the magazine 103, and can be pulled out and stored at will.

104 is a mechanism main body of the multi-disc player, and the magazine 103 is always stored in a fixed position in a magazine base IQ5 formed in a U-shape for storing 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 designates a magazine lock lever for locking the magazine, which engages with a recess 103b formed in the side wall of the magazine 103 by a tension spring 109 to lock the magazine 1o.
3 is configured to prevent extrusion toward the mouth.

11Q is a plunger, and when removing the magazine 103, 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 IQ6.

A speed control device 111 is configured to control the extrusion speed of the magazine 103 by being pressed against the magazine extrusion lever 106 .

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 base 113 for feeding the tray 101 to the performance start position.

Reference numeral 115 is a tray hook drive motor provided on the loading base, and a sive saw 116. The belt 117 drives the tray hook 112 in the e-inlet direction, and the recess 101b provided in the tray 1o1 engages with the tray hook 112 to pull out the tray 1o1 from the magazine 103 and store it therein.

A tray guide 118 is provided on the loading base 113 and guides 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 denotes a timing belt for driving the three screws by meshing with a small gear 124 provided at the lower part 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 a magazine 103 containing six disks 102 and a tray 101 is inserted into a magazine base 105, it is locked in a fixed position by the push-back lever of the magazine push-out lever 106 and the magazine lock lever 108. Next, the loading base 113 is raised and lowered by the rotation of the lifting drive motor 125, and the tray hook 112 and the tray 101 are moved up and down.
It stops at the height at which the recess 101b engages.

Subsequently, the tray footer drive motor 116 rotates forward, the tray hook 112 pulls out the tray 101 in the A direction, and the center of the disc 102 is placed on the turntable 122.
When it reaches the center, it stops and begins playing.

When the performance ends, the tray hook drive motor 115 reverses, and the tray hook 112 pushes the tray 101 back in the direction of the arrow and stores it in the magazine 1o3.

When the plunger 11o is energized, the magazine lock lever
108 and the recess 103b of the magazine 103 are released, and the magazine 103 is moved to the magazine push lever 106.
is pushed out toward the mouth by the player, 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, the heavy optical pickup block 119. ) Since the loading base 113 incorporating the lay hook drive motor etc. is raised and lowered by the three screws 121, a strong lifting structure is required, and the structure as a whole is complicated and expensive. Moreover, since the entire weight of the opening pace 113 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., the generation of plunger noise,
There were problems such as the stabilization of the extrusion speed being somewhat insufficient.

Furthermore, it was difficult to tell which shelf in the magazine contained a disc.

In view of the above-mentioned problems, the present invention consists of a heavy optical pickup block, tray hook, tray hook drive motor, etc. on the main body side, thereby reducing the overall loading pace, increasing the lifting speed and simplifying the lifting structure. To provide an inexpensive multi-disc player that can push out a magazine by sharing a tray hook drive motor, does not require a separate member for preventing the tray from popping out, and is low in noise.

Means for Solving the Problems and the technical means of the present invention for solving the above problems are: a drive rack that engages with a drive gear to take out and transport disks from a magazine, and store and transport them; a differential rack provided to be slidable by a certain amount, and after the movement rack stores the disk in the magazine, the drive gear disengages from the engagement with the drive rack and starts engagement with the differential rack, and the drive gear disengages from the engagement with the drive rack and starts engagement with the differential rack. It is configured to push out.

action The effect of this technical means is as follows.

That is, a drive rack that engages with a drive gear to take out and transport disks from the magazine, and to store and transport the disks;
The differential rack is installed so that it can slide a certain amount in the longitudinal direction of the drive rack, and after the drive rack stores the disk in the magazine, it stops engaging with the drive gear, and the drive gear stops engaging with the differential rack. The differential rack can be started and the magazine can be pushed out by the differential rack.

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, a disk 2 placed on a disk holding portion 1a of a tray 1 is placed on a shelf 3 of a magazine 3, which has been expanded to six stages.
Arranged and stored in 1L in order, each drawer,
It can be stored freely.

4 is a mechanism main body of the multi-disc player of the present invention, and a magazine base 6 for storing a U-shaped magazine is always located at a position where the magazine 3 hits a stopper 5a formed on the magazine base 5. has been inserted up to.

Reference numeral 6 designates a magazine lock lever for preventing the magazine 3 inserted into the magazine base 5 from coming out, and is structured so that it can rotate around a mounting shaft 8 on the magazine base board 7 provided at the bottom of the magazine base 50. has been done.

Reference numeral 9 denotes a lock lever pulling spring for rotating the magazine lock lever e, which is provided between the spring hook pin 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. energized.

6b is 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 four portions 3b formed on the side wall of the magazine 3 to allow the magazine 3 to protrude. It is designed to prevent

Reference numeral 10 denotes a tray hook, which engages with the concave portion 1b of the tray 1 stored in the magazine 3 to pull out the tray 1, and is a bent portion of the loading base 12 provided with tray guides 11 at both ends to guide the tray 1. A tray hook configured to be able to slide in the direction of the e-port along the line 121L is provided on the block 13.

Reference numeral 14 denotes a drive rack that drives the tray hook block 13 in the direction of the e-port in order to drive the tray 1 in the direction of the e-port to take out and store the tray 1 from the magazine 3. It is configured so that it can be slid in the direction of the E-port by engaging with the bent portion 4a of.

Reference numeral 14C denotes a column having an upwardly concave cross section and is provided at one end of the drive rack 14, and is configured so that the convex portion 13'a- of the tray hook block 13 can fit therein and slide up and down. FIG. 2 is an exploded view of the multi-disk brayer of the present invention. The shaft 16 rotates around a shaft 16 provided on the mechanism body 4, and meshes with the teeth 14C of the drive rack to move the drive rack toward the e-mouth direction. This is the drive gear that drives the motor.

Reference numeral 17 is an intermediate gear configured to mesh with the drive gear 16 and the drive pulley 18 for deceleration; and a shaft 19.
It is configured to rotate around.

20 is a drive pulley 18 provided to rotate around a shaft 21, and a pulley 2 provided on the top of 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 26, and a gear set spring 26 is biased between a concave portion 241L at one end of the lever and a spring hook portion 4b provided on the mechanism body 4. ing.

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 146 of the convex portion 14d of the drive rack 14 is further pushed toward the mouth, thereby separating the missing teeth 14f of the drive rack 14 from the drive gear 15.

In this position, the tray hook 1o is configured to fit into the recess 1b of the tray 1 housed in the magazine 3 with a certain gap and to be movable in two directions.

Reference numeral 27 denotes a differential rack that pushes the magazine 3 toward the mouth, and is slidably provided at the bottom of the drive rack 14, and is engaged with the drive gear 15 and driven toward the mouth, so that the center of the teeth 14g of the drive rack 14 Line and differential rack 2
The center lines of the teeth 271L of No. 7 are configured to be on the same line on a plane.

27b is the surface of the elongated hole 14h of the drive rack 14.

This is a push-out part that pushes out the magazine 3 that projects upward, and is configured so that it is constantly drawn to the end 14h' of the elongated hole of the drive rack 14 by a tension spring 28. At this time, the tooth 14g of the drive rack 14 and the tooth 271 of the differential rack 27
is structured so that the peaks and valleys match.

Figure 3 shows the state in which the tray hook 1o stores the tray 1 in the magazine 3, and the mechanism body 4.
The switch 29 provided on the top is pressed by a switch pusher 270 provided on the differential rack 2 and turned on.
The switch 3o is configured in a positional relationship such that it is in an OFF state.

When the drive 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 further advances in the direction A, the differential rack 2 slides on the drive rack 14, and when the state shown in FIG. When pulled out toward the mouth, the center of the disc 2 placed on the tray 1 is placed on the known optical pickup block 3 provided on the mechanism main 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.

When the drive rack 14 is further driven in the opening direction, the differential rack 27 and the drive rack 14 are both engaged with the drive gear 15, and as shown in Figure 3, the drive gear 16 and the drive rack 14 are disengaged and the gear set lever is released. -241C When the drive rack 14 is further pushed toward the mouth, the end 14j of the drive rack 14 hits the stopper ad of the mechanism body 4.
It stops when it comes into contact with.

When the drive gear 15 further rotates in the direction of the arrow in FIG. 3C, 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 to unlock the hook portion 6b formed at the tip of the magazine lock lever 6 from the recess 3b formed on the side wall of the magazine 3, and then move the differential rack 27 toward the opening. When driven, the magazine pace board 7
The pushing part 33a of the eject lever 33 provided in the magazine 3 is pushed by the pushing part 27b of the differential rack 27 to push out the magazine 3 toward the mouth, resulting in the state shown in FIG. 3C.

The eject lever 33 is configured so that a shaft 34 provided on the magazine pace board 7 and a long hole 33b fit together so that the eject lever 33 can slide by a certain amount in the E-ro direction, and a bent portion 330 at one end is configured 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 276 of the differential rack 27, and the switch 3o is turned on by the switch pusher 27f' of the differential rack 27.

When the magazine 3 is inserted into the magazine pace 5 as shown in the third drawing and FIG.
The magazine 3 is rotated in the direction indicated by the arrow small, and the hook portion 6b engages with the four portions 3b provided on the side wall of the magazine 3, thereby locking the magazine 3 so that it does not come out toward the mouth.

The eject lever 33 is pushed in the direction A and the differential rack 2
The extrusion section 27b of No. 7 is driven in the A direction.

At this time, the switch 30 is turned off by moving away from the switch push part 27f of the differential rack 2, and the switch 29 is also turned off by moving away from the switch push part 2Tel of the differential rack 27.
F and F, the motor 22 rotates to rotate the drive gear 15 in the direction of the arrow in Figure 3, and only the differential rack 27 is driven in the direction of A, stopping in the state shown in Figure 3A. .

When the differential rack 27 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 pushing 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 has a thin spring portion 6d.
When the lip portion 6C is pushed up in the direction, it bends, and the pushing portion 27b'
When passing through, the lip portion 6C is configured to return again in the direction.

36 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 37 provided in the mechanism body 4.

An intermediate gear 41 provided to rotate around the shaft 4o is connected to the shaft 4o.
A gear part 4 of an elevating cam 43 provided to rotate around 2
31L and the pulley gear 38.

In FIG. 5, reference numeral 44 denotes an elevating rack provided at the lower part of the loading pace 12, which is designed to engage with the elevating cam 43 to move the loading base 44 up and down in the direction of the harness.

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.

Reference numeral 46 denotes a photoelectric switch, which is configured to count the number of rotations of the elevating cam by passing through the slit portion 43b'.

The gaps between the teeth of the elevating rack 44 are the same as the gaps between the shelves 3a of the magazine 3, and each rotation of the elevating cam 43 moves one tooth.

This is a 46-piece limit switch, and when the elevating rack 44 descends in two directions and the tray hook 10 falls below the position of the lowest shelf of the magazine 3, the convex portion 441L formed on the elevating rack 44 turns on the limit switch 46. It's all over the place.

47 is 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 provided on both sides of the loading base 12.

Reference numeral 5b denotes teeth provided at both ends of the magazine base 5, 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 teeth provided at both ends of the magazine base 5. The timing gear 4 is fitted into the guide grooves 5c formed at both ends of the timing gear 4.
7 is configured so that it does not come off from the tooth portion 5b of the magazine base.

Reference numerals 49 and 50 designate lifting levers and lifting auxiliary levers for raising and lowering the loading base 12 while holding it horizontally, and one pair each is provided on the left and right sides of the loading base 12.

A shaft 51 provided on the loading base 12 is fitted into a hole 491L 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 mechanism body 4 is fitted with a shaft 53 provided at the other end of the elevating lever 49.
Elongated holes 541L and 54 of mounting parts 54 and 54' provided in
a' and provided at one end of the elevating auxiliary lever 50.
Support parts 55 and 55' provided on the mechanism body 4 at 0b
By inserting and supporting the shafts 552L and 55a', and inserting the shaft 56 provided on the loading base 12 into the long 5oC provided at the other end of the elevating auxiliary lever 60, the shaft 51 can be moved in the C direction. Lifting lever 49 when driven
The shaft 52 lifts the upper part of the elongated hole SOa of the elevating auxiliary lever 5°, and the elongated hole 5QC of the elevating auxiliary lever 50 lifts the upper part of the elongated hole SOa of the elevating auxiliary lever 5° by the amount that the shaft 61 is driven in the C direction. By driving K, the loading base 12 is held horizontally.

FIG. 6 shows the entire multi-disc player of the present invention, and the front panel 58 of the player housing 57 has an opening 5EIL for mounting the magazine 3 for storing discs in the pre-key housing 6. It is provided. Further, on the front panel 58, there are provided a group of operation buttons 59 and a display section 60 for operating the multi-disc player.

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

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

In FIG. 6, 61 is a disk display section provided on the front panel 58, and the magazine 3 is connected to the pre-key housing 5.
When the magazine 3 is installed in the magazine 3, the six contacts 62 & of the white switch 62 are configured to light up and display only the areas where the disks are stored on the six shelves 3a of the magazine 3. It is configured at a position corresponding to the six shelves 3&.

Reference numeral 63 denotes a disk switch lever configured to be able to rotate around a shaft 64 provided on the magazine base board 7, and the six-switch switch 62 is inserted into the recess 63& provided at one end.
It is configured to be inserted and fixed.

66 is a disk switch auxiliary lever, which is attached so that it can rotate around the shaft 64, and has a spring hook 65 formed in the center! Pull springs 66 are pulled together from L to the spring hook 63b of the disc switch lever 63.
is energized.

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 a switch shaft 62b so that the six-switch switch 62 can be rotated. The tips 620' of the six provided switch pieces 620 come into contact with the disk 2 and stop, and the disk switch lever 63
When the switch piece 620 is rotated in the downward direction, the other end 620 of the switch piece 620
' is configured to push the contact 621L to turn it off.

Reference numeral 67 denotes a spring hook 650 provided on the disk switch auxiliary lever 65 and a spring hook 7 on the magazine base board 7.
b is a tension spring biased between b and b, and is configured to rotate the disc switch lever 63 in the nu direction to keep the 6-switch switch 62 away from the disc 2 when the magazine 3 is not in the magazine space 5 at all times. has been done.

14 is a cam portion formed on the upper part of the drive rack 14. The drive rack 14 is driven in the direction of arrow A, and the magazine 3
When the disk 2 is taken out and transported, before the disk 2 starts moving in the A direction, a roller portion 630 provided at the other end of the disk switch lever 63 is pressed against the slope 14 at one end of the cam portion 14 by ''. It is configured to rotate in the direction of arrow N to prevent contact between the disk 2 and the switch piece 620.

At this time, as shown in FIG. 9, the tray hook block 13
Slide the recess 13a provided in the drive rack 14 by a certain amount.
A slide piece 68 is configured such that one end of the slide piece 68 is provided with a convex portion 682L that fits into the column 14C having a concave cross-section, and the seat of the stopper screw 69 prevents the removal and binding, and the other end is always pressed in the direction A by the compression spring 7o. is driven in the direction of the arrow by the pillar portion 140 of the drive rack 14 with a concave cross section, and the tray 1 is attached to the magazine 3 by the tray hook 10.
When returned and stored inside the tray hook pro, Tsuku 13
One end 13b is the bent portion 12 of the loading pace 12!
The structure is such that the drive rack 14 stops by hitting a stopper part 12Cj provided at L, further drives the slide piece 68 in the direction of the opening of the drive rack 14, compresses the compression spring 70 by a certain amount, and stops. Even if the tray 1 is driven by the certain amount in the A direction, the tray 1 does not start moving in the A direction, and while the drive rack 14 is being driven by the certain amount, the roller portion 630 of the disk switch lever 63 is moved toward the drive rack. 14
The inclined surface 14 at one end of the cam portion 14 rotates in the direction of arrow N by ' to prevent contact between the disk 2 and the switch piece 620, and the disk 2 is pulled out in the direction of arrow A to a position where it does not come into contact with the switch piece 62C. When it moves, the roller part 630 falls on the inclined surface 14 at the other end of the cam part 14, and the disc switch lever 63 is configured to rotate back in the direction of the beam.

FIG. 10 shows an embodiment of music for the multi-disc player of the present invention, which will be explained with reference to the drawings.

In Fig. 10, reference numeral 71 denotes an ejector lever, which has two shafts 3 provided on the bottom surface so as to be fixed by caulking into 92 holes 71&.
4 is slidably fitted into the elongated hole 7'a of the magazine pace board 7' in the direction of arrow E.

Reference numeral 72 denotes 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 71.
The eject lever B72 is configured to be able to slide a certain amount on the eject lever balm 71 by caulking it to the eject lever B71.

Reference numeral 73 denotes a tension spring, which is biased so that the spring hooking portion 71Cj provided on the ejector lever 71 and the spring hooking portion T2b of the ejector lever B72 are attracted to each other.

71d is an L provided at one end of the rigid balm 71.
When the magazine 3 is inserted into the magazine space 5 at the bent part, the lower part of the magazine 3 is pushed and the ejector lever 71 and the ejector lever 872 are both moved in the direction of arrow A. The inclined portion 71el provided at the end 1 rotates the disk switch auxiliary lever 65 in the direction of the arrow, and the eject lever BT
A pushing part 720 provided at one end of the differential rack 27 is configured to push the pushing part 27b of the differential rack 27 in the direction of arrow A.

74 is a magazine pressing spring, and the magazine base board 7
The spring-loaded portions 7'b, 7'0, and 7'clO are biased so that one end 74a pushes back the pushing portion 71f of the ejector lever 71 by a certain amount toward the mouth, and this spring force causes the magazine to 3 into the magazine pace 5 and the magazine 3 is locked by the magazine lock lever 6, the play that occurs between the recess 3b formed in the side wall of the magazine 3 and the hook portion 6b of the magazine lock lever 6 is eliminated. It is structured like this.

Also, when the magazine 3 is inserted into the magazine pace 5 at a rapid speed, the tension spring 73 is released due to the load of the differential rack 27.
is extended, and the insertion speed of the magazine 3 is relaxed and transmitted to the pushing part 27 of the differential rack.

11 and 12 show embodiments of a multi-disc player according to the present invention, which will be described with reference to the drawings.

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

To explain the structure of the magazine 3 in more detail, the lock base block 75 has an IO hook/bar installed on the lock base block 76 in order to prevent the tray 1 from popping out when it is stored along the shelf 3a of the magazine 3. A lock lever 7B is rotatably attached to the shaft 77, and one end 7B& of the lock lever 78 engages with the convex lock portion 1C of the tray 1, causing the tray 1 to move in the direction of arrow A. The other end 7 is formed into a hook shape to prevent
Reference numeral 8b 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;
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 C.

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

Reference numeral 79 denotes a lock spring, and 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 79& is inserted into the bent part 7 of the lock base 76.
6 & and the other end 79b is pressed against a convex portion 78C formed at the lower part of the lock lever 78 to apply spring pressure.

8o is a tray set lever, and when loading and unloading the six trays 1 stored in the magazine 3 one by one, the recess 1 formed in the tray 1 is used to correctly determine the storage position.
Convex portion 80 formed on the tray set lever 80! The pushing part 8ob of the tray set lever 80, which is attached so as to be rotatable on the tray set lever shaft 81 provided on the lock pace 76 at all times, is configured to be pushed by the L shape formed on the lock pace 76. The L-shaped plate spring 82 attached to the bent portion 76b is configured to push the L-shaped bent portion 76b.

The leaf spring 82 is made by pressing a single leaf spring into a comb shape and bending the central part 82a into an L shape. Tray set lever 804 - The six comb-shaped portions 82b of the leaf spring 82 are configured to push independently.

Reference numeral 76C denotes a rotation preventing portion bent upward on the lock base 76, and is connected to one end 80 of the tray set lever 80.
It is constructed so that the rotation is stopped when 0 hits it.

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

Reference numeral 83 designates a lock release lever provided between the pushing portion 27b of the differential rack 27 and the lock lever 78, which can be rotated by a certain amount in the direction of the arrow worker about a shaft 84 provided at the base of the magazine base. It is configured.

832L is a convex portion provided at one end of the lock release lever 83; a convex inclined portion 8 provided at the other end of the lock release lever 83;
3b is pushed by the pushing part 27b of the differential rack 27 as the differential rack 27 moves in the A direction, and rotates in the direction of the arrow W, pushing the lock release piece 78b of the lock lever 78 to lock the tray 1. It is configured so that it can be released and the tray 1 can be pulled out from the magazine 3 in the A direction.

Reference numeral 85 denotes a tension spring which is biased between the spring hooking portion 830 of the lock release lever 83 and the spring hooking portion 7'd of the magazine pace 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 is a wire spring, and the lock release lever is formed of a springy resin material and has a groove 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-walled portion 83d of 83 from permanent deformation, the 8-shaped spring receivers formed on the left and right sides of the thin-walled portion 83d are portions 83e.

It is inserted in 83f.

Reference numeral 86& is a Z soft white portion formed at one end of the wire spring 86, and is inserted into a small hole 83g provided in the lock release lever 83, so that it does not come out upwards.

83f' is the U-shaped spring holder of the lock release lever 83.
The wire spring 86 formed at 3 is prevented from being pulled out in the upward direction.

FIG. 11 3d shows a recess formed at a rear position at a distance from the recess 3b of the magazine 3 by which the magazine 3 is pushed out by the ejector levers 71, B, and 72;
When the magazine 3 is pushed out toward the mouth, the hook portion 6b of the magazine lock lever 6 shown in FIG. 1 pushes against the recess 3d to prevent the magazine 30 from overrunning toward the mouth. 3e is an opening provided in 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 explained below with reference to FIGS. 1 to 12.

First, when a disc 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 loading base 12
moves upward in the direction C and stops at the specified 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. 3B.

At this time, the tray hook block 13 is driven in the A direction by the engagement of the convex portion 13a with the pillar portion of the drive rack 14, and the turntable 32 of the optical pickup block 31 is
The tray hook 10 pulls out the tray 1 until the center of the disk 2 on the tray 1 almost coincides with the center of the disk 2 on the tray 1.

Next, a reverse voltage is supplied to the lifting motor 35, and the rotating pace 12 is lowered in two directions, and the limit switch 4
After pressing 6, it descends a certain amount further and stops. Note that the parallelism between the magazine and the loading pace is maintained by the meshing of the timing gear with the teeth of the magazine base. This lowering position is determined by the count of the photoelectric switch 45 in combination with a known microcomputer.

At this time, the two-disc optical pickup block 31 is turned and the two discs are supplied onto the table 32, and a certain amount of clearance is maintained between the disc 2 and the tray 1, and the performance is started.

When the performance is finished, a driving 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 is raised in the direction of 12, and is at the first retrieved position stored in the computer. Stop.

Next, a reverse voltage is supplied to the motor 22 and the motor 22 is driven.
4. The differential rack 27 is driven in the direction of the opening, and the stopper and switch 29 are turned on at the position shown in FIG. 3A.

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 pace 12 is lowered in two directions, and the limit switch 46 is turned on to stop and complete the operation. In addition, by specifying the operation button group 69, it is possible to sequentially play the six discs in the magazine, play a program of only the desired disc, or play one disc repeatedly, etc. in combination with a known microcomputer. Can be done.

When the eject button of the operation button group 59 shown in FIG. 6 is operated when taking out the magazine 3 from the player housing 57, only the operating rack 27 is driven in the opening direction as shown in FIG. 3C, 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, switches 29 and 3Q are both set to OFF.
It becomes N state.

When inserting the magazine 3 into the player housing 57, the magazine 3 pushes the eject lever 33 in the A direction as shown in the third diagram, and when the eject lever 33 pushes the differential rack 27 in the A direction, the switch 3o switches the differential rack 2 The switch 29 moves away from the switch push part 27f of the differential rack 27 and turns off, as shown in Figure 3.
The differential rack 27 is driven in the A direction until it is turned ON by the switch 70.

Furthermore, when the magazine 3 is inserted into the pre-key housing 5 frame, a switch piece 620 on the edge 62 of the 6-switch switch provided in a position corresponding to each column 3a of the magazine 3 in which the disks 2 are sequentially arranged and stored approaches the disk 2. to detect the presence or absence 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 part 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 is taken out from the magazine 3. When the disk 2 is taken out and conveyed to a position where the switch piece 620 does not touch the disk 2 by the return of the rotation of the disk switch lever 63, the tension spring 6 is released again.
6 allows the disk switch lever 63 to return to rotation. Also, replace magazine 3 with magazine base 5
When the magazine 3 is inserted into the interior 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. It is possible to prevent the drive rack 14 from moving too far in the A direction due to excessive pushing, thereby preventing a malfunction in pulling out the tray.

The positional relationship between the drive rack 14 and the differential rack 27 in FIG. 11 is the position shown in FIG.
When the differential rack 27.degree. drive rack 14 is sequentially driven in the direction of arrow A by the drive of No. Unlock tray 1 and lock lever 78.

At the initial stage when the drive rack 14 is driven in the A direction,
As explained in FIG. 9, the tray hook block 13
is pressed against the stopper part 120 of the loading pace 12 and the compression spring 7o 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 is not pulled out in the A direction. At this timing, the tray 1 and the lock lever 78 are unlocked, and when the drive rack is further driven in the A direction, the slide piece 68 pushes the stopper 69, and the tray hook block 13 is moved 1 in the A direction.
drive and pull out tray 1. When the drive arm 14 is further driven in the A direction, the pushing part 27b of the differential rack shown in FIG.
After passing in the A direction, 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 locked again by the lock lever 78.

When the performance is finished and the tray 1 is driven toward the mouth and 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 toward the mouth. , and return to the original position shown in Figure 3.

When the lock release lever 83 is pushed by the push portion 27b of the differential rack and rotated in the direction of the arrow W, the convex portion 83 at one end! When L pushes the lock lever 78, the thin part 83d bends, but the U-shaped spring receiver is the wire spring 86 inserted into the part 838.83f'.
Accordingly, permanent deformation of the thin wall portion 83d can be prevented and deterioration of the spring effect can be prevented.

Also, the hook portion 6b of the magazine lock lever 6 is located in the recessed portion 3d.
You can prevent the magazine 3 from overrunning toward the mouth by pressing .

Effects of the Invention As described above, the present invention includes a drive rack that engages with a drive gear to take out, transport, and store disks from a magazine, and a differential that is provided to be able to slide a certain amount in the longitudinal direction of the drive rack. By configuring the driving gear to disengage from the driving rack and start engaging the differential rack to push out the magazine, a plunger is not required. A multi-disc player that is silent, has no noise, and has a simple structure can be provided at low cost.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the mechanism of a multi-disc player according to an embodiment of the present invention, FIG. 2 is an exploded view of the mechanism, and FIG. 3 is a plan view for explaining the horizontal drive operation of the multi-disc player. Fig. 4 is a perspective view for explaining magazine locking and release, Fig. 5 is a perspective view showing the vertical drive structure of the loading base, and Fig. 6 is a perspective view showing the entire multi-disc brayer according to the embodiment of the present invention. Figure, M7 figure (
1) is a plan view for explaining another embodiment, ('B) is a front view thereof, (C) is a right side view, FIGS. 8 and 9 are perspective views for explaining details, and FIG. 11 is a perspective view for explaining an embodiment of the pond, FIG. 12 is an enlarged perspective view and a plan view of the tray section, and FIG. 13 is a perspective view showing a conventional multi-disc player. 3...Magazine, 5...Magazine base, 14...Drive rack, 15...Drive gear'-127...Differential rack , 28...
...Tension spring, 29.30...Switch. Name of agent: Patent attorney Toshio Nakao and one other person
Keyboard Figure 5 4-- Mechanism wood stock 68- Front panel 67- Pressing panel ≦0--~Disk display 6/--Disk display Figure 6 5B (160?-Disc 3---7j°dunggvIshiba--Figure 8----Tray Figure 9

Claims (1)

[Claims] The drive rack is equipped with a drive rack that engages with a drive gear to take out and transport disks from a magazine, and a differential rack that is slidable by a certain amount in the longitudinal direction of the drive rack, and the drive rack stores the disks in the magazine. The multi-disc player is characterized in that the drive gear is disengaged from the drive rack and starts to engage the differential rack to push out the magazine.