JPH01151058A - Multiple disk player - Google Patents

Abstract

PURPOSE:To quicken a lift speed and to simplify a lift structure by holding a loading base horizontally by both levers and moving the loading base by lifting it by a lift driving part as well. CONSTITUTION:The horizontal holding structure of the loading base consisting of a lift lever 49 and auxiliary lift lever 50 provided at the side part of the loading base is driven by vertically driving one lift rack provided at one end of the loading base by one lift cam 43 provided at the mechanism main body 4 side. The whole loading base is then driven vertically with holding the levelness of the loading base. The vertical driving can therefore be executed by one lift rack and lift cam 43 only. The lift driving load is thus lightened and the vertical driving can be done at high speed.

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 of the stored discs for continuous play. Regarding.

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 performs continuous play 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.

No.? The figure shows a conventional multi-disc player.

In FIG. 1, a disk holding portion 101 of a tray 101
The disks 102 placed on the disks 102a are arranged in order on the shelves 103a formed in six stages of the magazine 103.

It is stored in a drawer and can be stored freely.

Reference numeral 104 is 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 that always holds magazine 1.
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.

Reference numeral 110 is a plunger, and when the magazine 103 is taken out, the lock lever 108 and the magazine 10 are connected by energization.
By releasing the engagement of the recess 103b formed in the side wall of No.3,
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 come into 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 base 113 for feeding the tray 101 to the performance start position.

116 is a tray hook drive motor installed on the loading base; reeds, pulley 116, belt 117
As a result, the tray hook 112 is driven in the e-port direction, and the recess 1o1b provided in the tray 101 engages with the tray hook 112, and the tray 1 is removed from the magazine 103.
01 is pulled out and stored.

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 is a timing belt that meshes with a small gear 124 provided at the bottom of the three screw screws 121 and drives the three screw screws, and is configured to be driven by a lift drive motor 126.

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 1o1 is inserted into the magazine base 105, 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 raised and lowered by the rotation of the raising and lowering drive motor 126, and the tray hook 112 and the tray 10
It stops at the height where the first recess 101a engages.

Subsequently, the tray hook drive motor 115 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 120.
When it reaches the center of the line, it will stop and start playing.

When the performance ends, 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 moved to the magazine push lever 1.
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, the heavy optical pickup block 119. ) In order to raise and lower the loading base 113 incorporating the lay hook drive motor etc. using the three screws 121, a strong lifting structure is required, and the structure as a whole is complicated and expensive.

Also, since the entire loading base 113 is heavy,
It was also 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 a magazine ejection lever, a speed control device, etc., there are problems such as generation of plunger noise and a lack of stabilization of ejection speed.

In view of the above problems, the present invention consists of a heavy optical pickup block, tray hook, tray hook drive motor, etc. on the main body side, thereby making the entire loading base lighter, increasing the lifting speed and simplifying the lifting structure. To provide an inexpensive, low-noise, high-speed multi-disc player that can push out a magazine by using a common motor for driving a tray hook.

Means for Solving the Problems In order to solve the above problems, the multi-disc player of the present invention has (1) a magazine for sequentially arranging and storing a plurality of discs, and a magazine that moves up and down in the vertical direction facing the magazine. a loading base that sequentially selects arbitrary disks by using the loading base; a lifting drive unit for the loading base that transmits lifting driving force to a part of the loading base; an elevating lever movably supported; an elevating auxiliary lever having one end pivoted to the mechanism body and the other end slidably supporting the loading base; the elevating lever and the elevating auxiliary lever; A pin is provided approximately at the center of one of the two, and a long hole is provided approximately at the center of the other, and the elevating lever and the elevating auxiliary lever are held together by the pin and the elongated hole so that they intersect in a substantially X-shape. The loading base is held horizontally by both the levers, and the loading base is moved up and down by the lifting drive section.

(2) The elevating drive unit includes an elevating rack provided on a part of the loading base, an elevating cam provided on the mechanism body that drives the elevating rack, and a driving source for the elevating cam, and The elevating rack is configured to be driven in the vertical direction by rotating the elevating cam using a driving force from the elevating rack.

Operation According to the above configuration, one lifting rack provided at one end of the loading base is driven up and down by one lifting cam provided on the mechanism main body side, and the lifting rack provided at the side of the loading base is The horizontal holding structure of the loading base consisting of a lever and an elevating auxiliary lever is driven, and the entire loading base is driven up and down while maintaining the horizontality of the loading base.

As a result, since the vertical movement can be performed using only one elevating rack and elevating cam, the lifting load is light and the vertical movement can be performed at high speed.

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 formed in six stages of a 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 a magazine base 6 formed in a U-shape for storing a 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 denotes 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 a magazine base board 7 provided at the bottom of the magazine base 6. has been done.

Reference numeral 9 denotes a lock lever pulling spring for rotating the magazine lock lever 6, which is connected between the spring hook e& provided at the top of the magazine lock lever 6 and the spring hook 7a provided on the magazine base 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 provided 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.

Reference numeral 10 denotes a tray hook that engages with the recess 1b of the tray 1 stored in the magazine 3 and pulls out the tray 1, and bends a loading base 12 that is provided with tray guides 11 at both ends to guide the tray 1. The tray hook block 13 is provided on a tray hook block 13 configured to be able to slide along the portion 12a in the direction of the e-mouth.

14 drives the tray 1 toward the e-port and loads the magazine 3.
Tray hook block 13 for taking out and storing
The driving rack is configured such that guide portions 14a and 14b provided at the lower part of the mechanism body 4 can be engaged with the bent portion 4a of the mechanism body 4 to slide in the e-port direction.

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 a tray hook block 13.
The convex portions 13a are engaged with each other and are configured to be able to slide up and down. FIG. 2 is an exploded view of the multi-dinuk player of the present invention. The reference numeral 15 rotates around an axis 1θ provided on the mechanism main 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

17 is an intermediate gear for deceleration configured to mesh with the drive gear 15 and the drive pulley 18;
It is configured to rotate around 9.

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

A gear set lever 24 is provided so as to be rotatable around a shaft shaft 26, and a gear set spring 26 is biased between a recess 24a at one end of the shaft and a spring hook 4b provided on the mechanism body 4. has been done.

24b is a convex portion provided at the other end of the gear set lever 24, and as shown in FIG. 3A, the drive rack 14 is connected to the drive gear 1.
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 1o is configured to fit tightly into the recess 1b of the tray 1 housed in the magazine 3 with a certain clearance, and to be movable in two directions.

27 is a differential rack for pushing out the magazine 3 toward the mouth, and is slidably provided at the bottom of the drive rack 14.
, and the drive gear 15 to be driven in the E direction, so that 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 arranged to be the same line on a plane.

The end 1 of the elongated hole of the rack 14 is permanently driven by the spring 28.
It is configured to draw up to 4h'. At this time, the teeth 14g of the drive rack 14 and the teeth 27a of the differential rack 27 are peaks,
It is constructed so that the valleys match.

FIG. 3A 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 body 4 is pressed by the switch pusher 27c provided on the differential rack 27. When pressed, the switch 3o is in the ON state, and the switch 3o is in the 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 16 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 27 slides over the drive rack 14, and when the state shown in FIG. When the center of the disc 2 placed on the tray 1 is pulled out in the direction shown in FIG.
This shows a state where the turntable 32 is stopped at the center.

At this time, the switch 29 is in the OFF state, and the switch 30 is in the OFF state.
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, so that the drive gear 15 and the drive rack 14 are engaged with each other as shown in FIG. 3A.
When the engagement is disengaged and the drive rack 14 is further pushed toward the mouth by the gear set lever 24, the end 141 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 16 further rotates in the direction of the arrow shown in FIG. 3C, only the differential rack 27 is driven in the opening direction, and as shown in FIG. ' presses the curved lip part 6c formed below the magazine lock lever 6, and the magazine lock lever
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 further move the differential rack 27 toward the mouth. When the eject lever 33 is driven to the position shown in FIG. .

The eject lever 33 is configured so that a shaft 34 provided on the magazine base board 7 and a long hole 33b are engaged with each other so that the eject lever 33 can slide by a certain amount in the E-ro direction, 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 hook 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 pace 5 as shown in Fig. 3 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 in 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 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 separated from the switch push part 27b of the differential rack 27 and turned off, and the switch 29 is also moved away from the switch push part 27e of the differential rack 27 and turned off.
Then, the motor 22 rotates, causing the driving gear 16 to move in the direction of the arrow in the third figure, and only the differential rack 27 is driven in the direction A and is configured to stop in the state shown in FIG. 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 of
When passing through, the lip portion 6C is configured to return again in the direction.

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 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
3a and the pulley gear 38. - In FIG. 4, reference numeral 44 is 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 direction of the harness.

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

Reference numeral 45 denotes a photoelectric switch, which is configured to count the number of revolutions of the elevating cam as it passes through the slit portion 43b'.

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

Reference numeral 46 denotes a limit switch, and when the elevating rack 44 descends in two directions and the tray hook 10 descends below the position of the lowest shelf of the magazine 3, a convex portion 44a 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 sides of a gear shaft 48 passing through holes 12b provided on both sides of the loading base 12.

sb are teeth provided at both ends of the magazine base 5, and are configured to mesh with the timing gear 47;
Guide portions 48a formed at both ends of the gear shaft 48 so as to protrude beyond the timing gear 47 engage with guide grooves 5C formed at both ends of the magazine base 5, so that the timing gear 47 can be moved from the tooth portion 5b of the magazine base. It is constructed so that it will not come off.

Reference numerals 49 and 50 indicate lifting levers and lifting auxiliary levers for raising and lowering the loading base 12 while holding it horizontally, which are provided in pairs on the left and right sides of the loading base 12.

A shaft 51 provided on the loading base 12 is engaged with a hole 49a provided at one end of the elevating lever 49 for pivotal support, and a shaft 62 provided at the center of the elevating lever 49 is provided at the center of the elevating auxiliary lever 6o. The shaft 63 fitted in the elongated hole 50a and provided at the other end of the lifting lever 49 is connected to the mechanism main body 4.
Elongated holes 54a and 54a of mounting parts 64 and 64' provided in
', and the hole so provided at one end of the elevating assist lever 60.
b, the support parts 66 and 56 provided on the safe °7 body 4
By inserting and supporting the shafts 55a and 65a' and inserting the shaft 66 provided in the loading base 12 into the elongated hole 50c provided at the other end of the elevating auxiliary lever 60, the shaft 51 is When the lift lever 49 is driven in , the shaft 52 of the lift lever 49 lifts the upper part of the elongated hole Boa of the lift auxiliary lever 5°, and the elongated hole 50c of the lift auxiliary lever 6o is provided in the loading base 12 by the amount that the shaft 61 is driven in the C direction. The loading base 12 is held horizontally by driving the shaft 56 in the horizontal direction.

FIG. 7 shows the entire multi-disc player of the present invention, and the front spring/115B of the player housing 67 has an opening for mounting the magazine 3 for storing discs in the pre-key housing 5. 58a is provided.

Furthermore, a group of operation buttons 59 and a display section eo for operating the multi-disc player are provided on the front spring/L'58.

Reference numeral 4 designates the mechanism body of the multi-disc player of the present invention, which is constructed within the pre-key housing 6.

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

First, when a disc to be played is designated by operating the operation button group 69 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 46 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 30 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 turn tape/l of the optical pickup block 31 is driven.
The tray hook 1o pulls out the tray 1 until the center of /32 and the center of the Deinuk 2 on the tray 1 almost match.

Next, a reverse voltage is supplied to the lifting motor 36, 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 the disc 2 and tray 1 are
The performance begins with a certain amount of gap maintained between the two.

When the performance is finished, driving voltage is supplied to the lifting motor 36 by a combination of a known end detection means and a microcomputer, and the loading base 12 is raised in the direction to the first position stored in the computer. Stop.

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 third A position, and the switch 29 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, and the loading base 12 is lowered in two directions, and the limit switch 46 is turned on to stop and operate. By specifying the operation button group 59, six discs in the magazine can be played in sequence, a program can be played only with a favorite disc, a single disc can be played repeatedly, etc. in combination with a known microcomputer. be able to.

-q-) When the eject button of the operation button group 59 shown in FIG. 7 is operated when taking out the f-gin 3 from the player housing 67, only the operating rack 27 is driven in the mouth direction as shown in FIG. 3C. Next, magazine lock lever 6
Then, after the magazine 3 is unlocked, 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 switch 29.30
is in the ON state at #.

When inserting the manganese 3 into the player housing 57, the magazine 3 pushes the eject lever 33 in the A direction as shown in the third figure, and when the eject lever 33 pushes the differential rack 27 in the A direction, the switch 30 moves the differential rack 27. If the switch 29 is turned OFF by moving away from the switch push part 27b of the differential rack 27, the switch 29 should be turned OFF by moving away from the switch push part 27b of the differential rack 27.
c, the differential rack 27 is driven in the direction A until it is turned on.

Effects of the Invention As described above, according to the present invention, one elevating rack provided at one end of the loading base is driven up and down by one elevating cam provided on the mechanism main body side. In addition, the structure drives the horizontal holding structure of the loading base, which consists of a lifting lever and a lifting auxiliary lever, and drives the entire loading base up and down while maintaining the horizontality of the loading base, so the lifting load is light and the load can be increased at high speed. A multi-disc player capable of vertical driving can be provided.

[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 perspective view of the mechanism, Fig. 3 is a multi-disc perspective view, and Fig. 6 is a vertical drive of the loading base. A perspective view showing the structure; FIG. 7 is a perspective view showing the entire multi-disc player of the present invention;
FIG. 1 is a perspective view of a conventional multi-disc player. 1...Tray, 2...Disk, 3.
...magazine, 4...mechanism body,
5...Magazine base, 7...Magazine base board, 12...Loading base,
36... Lifting motor, 36... Pulley, 37... Shaft, 38... Pulley gear, 39... Pe/L' ), 40...
...Shaft, 41...Intermediate gear, 42...
・Shaft, 43... Elevating cam, 44... Elevating rack, 49... Elevating lever, 5o...
... Lifting assist lever, 51 ... shaft, 52 ...
... shaft, 53 ... shaft, 64 ... mounting part, 5
5...Support part, 66...Shaft. Name of agent: Patent attorney Toshio Nakao and 1 other person3-
Magazine 6---Machine log bar 7-Magazine base board 14-Drive rack Fig. 4 Z7-, pusher p3
3IL-Inkbase 12- Penetration Ink Base 4F-Kaikai Gear, U--Ichishojin Cam Department-Shoring Rack 45-Photoelectric Switch 46-Wamit Switch 4γ-Daoming Key 41)-- Giy lees Figure 6

Claims (2)

[Claims] (1) A magazine that sequentially arranges and stores a plurality of discs, a loading base that faces the magazine and moves up and down in the vertical direction to sequentially select any disc, and a part of the loading base that is provided with an up/down driving force. an elevator lever having one end pivotally supported by the loading base and the other end slidably pivotally supported by the mechanism body, and one end pivotally supported by the mechanism body, and The other end of the lifting auxiliary lever is pivotably supported to be slidable on the loading base, and a pin is provided at approximately the center of either the lifting lever or the lifting auxiliary lever, and a pin is provided at approximately the center of the other end. a hole is provided, the elevating lever and the elevating auxiliary lever are engaged by the pin and the elongated hole and arranged to intersect in a substantially X-shape, and both levers hold the loading base horizontally and the elevating drive unit A multi-disc player characterized by a structure in which a loading base is moved up and down. (2) The elevating drive unit includes an elevating rack provided on a part of the loading base, an elevating cam provided on the mechanism body that drives the elevating rack, and a driving source for the elevating cam, and the elevating cam is driven by the driving source. Claim 1, characterized in that the elevating rack is configured to be driven in the vertical direction by rotating the elevating cam with a force.
Multi-disc player as described in section.