JPS6315666B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevating mechanism in a compact disc auto player.

With the development of compact disc players, there is a strong demand for small auto players that can automatically select and set compact discs.

It is an object of the present invention to meet these demands and to provide an elevating mechanism that can be satisfactorily used in auto players.

Therefore, an elevator consisting of a lift box and a means for raising and lowering the lift box is provided, a disk box is removably stored in the lift box, and a plurality of disk trays are horizontally parallel to each other in the disk box. It is characterized by being configured such that the disk trays are accommodated in a manner that they can be inserted and removed, and that the elevator is electrically controlled to bring the disk trays to respective predetermined supply positions.

The illustrated embodiment will be described below.

FIG. 1 is an overall view showing the mechanical configuration of the compact disc auto player. In the figure, 1 is the player main body, 2 is the elevator adjacent to the right side of the player main body, and 3 is the main body of the player. A disk box 4, which is removably installed in the elevator and has a plurality of disk trays 31 inside which can be inserted and removed, is located adjacent to the back of the player body 1 and the elevator 2 at a predetermined height. This is a carrier that supplies one disk tray 31 to the player main body 1.

The player body 1 is equipped with a turntable 12 and a rack unit 13 on the upper part of a chassis 11 (Fig. 2), and a rectangular elevating frame 14 around these.
is arranged, and the elevating frame is raised and lowered by a lifter 16 provided at the lower part of the chassis 11. In addition, an elevating frame 14 is placed above the turntable 12.
It is equipped with a pressure ring 15 that moves up and down in accordance with the movement.

The elevating frame 14 has a horizontally long disk tray insertion opening 141 in the upper part of the right side wall 14a, and a pair of horizontally long disk tray guide grooves 142, 143 in the front wall 14b and rear wall 14c that are connected to the insertion hole. The carrier 4 opens a part of the guide groove 143 at the right end of the rear wall 14c so as to introduce the disk tray 31.
A window hole 144 is bored for the purpose.

The elevator 2 has a plurality of longitudinal guide rails 2.
2. Provides an elevator box 21 that is guided up and down by...
The elevator box is raised and lowered by a winder 23.

As shown in the exploded view of FIG. 3, the elevator box 21 has a plurality of bosses 2 on the right side wall 21a and the rear wall 21b.
11... are provided, and these bosses are connected to the guide rail 22.
A hanging ring 212 is provided at the center of the top wall 21c, and the hanging string 23 of the winder 23 is attached to the hanging ring 212.
1, a vertically long roller 21 having openings 213, 214 in the front and the left side of the player body side, and pivotally supported on a wide and short arm 215 on the left side of the front.
6, and its arms are connected to the top wall 21c and the bottom wall 21.
d, and a spring 218 is attached to the arm.
is applied to urge the roller 216 backward,
A vertically long window hole 219 is bored near the left side of the rear wall 21b. Further, an electrical position detecting means 5 for detecting the ascending and descending position of the elevator box 21 is provided at a suitable location.

As shown in the exploded view of FIG. 3, the disk box 3 is formed into a box 32 with an opening 321 on the left side, and is connected to the elevator box 21 through the front opening 21.
3 (at the time of insertion and removal, the roller 216 on the front of the elevator box is rotated to the left against the spring 218), and the front wall 32a and the rear wall 32
A plurality of horizontal structures 322..., corresponding to the inner surface of b.
323... are arranged side by side, and a plurality of disk receivers 31... are inserted and housed in these lateral grooves horizontally and in parallel so that they can be freely inserted and removed. In addition, the front wall 32a and the rear wall 3
Vertically long window holes 324 and 325 are bored near the left side of 2b, and the roller 216 on the front side of the elevator box is inserted into the window hole 3 on the front side.
24, and is brought into pressure contact with the disk receiving tray 31. Note that the horizontal grooves 322 on the front wall are made narrower than the mechanisms 323 on the rear wall, so that the disk receiving tray 31
... is adapted to this to ensure the directionality of the disk tray.

As shown in the exploded view of FIG. 3, the disc tray 31 is formed to have a square planar shape and to be thin, and has a large circular recess 311 formed on the top surface, in which a compact disc CD can be placed. A window hole 312 is formed from the center to the edge of the recess into which the turntable 12 of the player body 1 and the light pen 131 (FIG. 2) of the hook unit 13 are movably inserted.

The reversible motor 234 of the winder 23 has a fourth
As shown in the figure, the driver 54 is operated, the driver is electrically controlled by the control system 53, and the winder 23 (reversible motor) is operated based on the specification in the control system to move the elevator box 21 to a desired position. The position detecting means 5 detects the position of the elevating box 21 by detecting the position of the elevating box 21.
A plurality of photo sensors 51 corresponding to... are installed adjacent to the elevator car 21, and reading marks 52 are provided at appropriate locations on the elevator car facing these photo sensors, and the detection signals of each photo sensor are is sent to the control system 53 to perform feedback control of the control system.

5 to 8 show the position detection means 5, respectively.
Here are some other examples.

The position detection means 5 shown in FIG. 5 is provided with one photo sensor 51 adjacent to the elevator box 21, and has a plurality of read marks corresponding to the plurality of disk trays 31 on the elevator box, facing the photo sensor. 52
... are installed in parallel, and the control system 53 is controlled in a feedback manner by the photo sensor 51.
The control system 53 includes a counter for counting detection signals and a memory for storing the stop position of the elevator box 21.

The position detecting means 5 in FIG. 6 includes a variable resistor 55 disposed near the elevator box 21, mechanically linking the variable resistor and the elevator box with rack and pinions 551, 552, and The control system 5 is sent via the analog comparator 56 by the detection signal of the resistor 55
3, and the control system 53
The analog comparator 56 is comparatively controlled via the D/A converter 57 based on the output of the analog comparator 56 .

The position detecting means 5 in FIG. 7 uses both the one in FIG. 5 and the one in FIG. 6, and the counter and memory in the control system 53 are omitted. In this case, rough alignment is obtained on the variable resistor 55 side, and fine alignment is obtained on the photo sensor 51 side.

The position detection means 5 in FIG. 8 is the same as that in FIG.
Numerical marks 59 corresponding to the plurality of disk trays 31 are arranged on the elevator box so as to face the photo sensor 1, and the photo sensor 5 is provided adjacent to the photo sensor 5.
The control system 53 is subjected to feedback control using the detection signal No. 8, and the control system is provided with a memory for storing the stop position of the elevator box 21.

FIG. 9 shows another elevating means in the elevator 2. In this case, a stepping motor 24 is placed near the elevator box 21, and a rack and pinion 24 is connected between the stepping motor and the elevator box.
41 and 242, and the driver 60 of the stepping motor 24 is controlled by a control system 53 using the position detecting means 5 shown in FIG. 5 and others. In addition, elevating means using a screw may be used.

In addition, in the vicinity of the elevator 2, the disk tray 3 sent out from the disk box 3
It is also possible to provide a photo sensor for detecting whether or not there is a compact disc CD on the disc 1, and to return the disc tray directly to the disc box if there is no compact disc CD.

The carrier 4 is provided with a drive device 41 comprising two drive wheels 412, 412 which are rotated in forward and reverse directions by a reversible motor 411, and these drive wheels are connected to the lift box 21 and disk box 3 in the player body 1. It corresponds to the window holes 219 and 325, and is provided with a feeding device 42 for advancing and inserting the drive wheels into the window holes.

Next, the operation will be explained with reference to FIG.

First, in use, a compact disk CD is placed in each disk tray 31 of the disk box 3, and the disk box 3 is inserted into the elevator box 21 of the elevator 2.

Next, in the player main body 1, the lifter 16
is activated to raise the elevator frame 14, and
Raise the pressure ring 15 and operate the winder 23 etc. in the elevator 2,
The elevator box 21 is raised and lowered, and the disc tray 31 on which the required compact disc CD is placed is positioned at a predetermined height corresponding to the player body 1. The position at this time is detected by the position detecting means 5, and is subjected to feedback control to ensure electrical correctness.

The disk receiving tray 31 positioned at a predetermined height operates the carrier 4 to feed the disk into the player main body 1.
At this time, the carrier 4 advances the drive wheels 42 and 42 rotated by the reversible motor 41 using the feeding device 43, and opens the window holes 219 and 325 in the elevator box 21 and the disk box 3 of the elevator 2, as well as the player 1. It is inserted into the window hole 144 of the elevating frame 14, pressed against the edge of the disk tray 31, and the disk tray is transferred.

In the player main body 1, the disk tray 31 is inserted into the disk tray insertion slot 141 in the lifting frame 14.
After introduction, the lifter 16 is operated to lower the elevating frame 14, and the compact disc CD on the disc receiving tray 31 is transferred onto the turntable 12, and the compact disc CD is placed on the elevating frame. It is clamped by a pressure ring 15 that is driven down (FIG. 1).

Then, in the player body 1, the turntable 12 and the radio unit 13 are operated to obtain a performance from the inserted compact disc CD,
After the performance is over, the lifter 16 is operated again to raise the elevating frame 14 and the pressure ring 15, and the compact disc is placed back on the disc tray 31 by this lifting, and the carrier 4 is operated again to raise the compact disc. Return the loaded disk tray 31 to its original position in the disk box 3.

All of the above operations are performed fully automatically by electrical control.

Note that the configuration and operation of each part are not limited to those described above, and can of course be modified as necessary.

According to the present invention, an extremely good disc player can be used in a compact disc auto player.
In addition, it is possible to select a compact disc extremely easily, without causing stress or damage to the selected compact disc, and to configure the overall configuration of an auto player in a simple manner. By replacing the disk box, the range of music selection can be greatly expanded, and the melody etc. can be classified by disk box, allowing excellent song selection ability to be demonstrated. compact·
The disks can be accommodated in a fixed position without any strain, and when putting in and taking out the disk, the entire disk tray is taken in and out, so no force is directly applied to the compact disk, and the compact disk does not become distorted, making it easy to move. Therefore, no distortion or the like occurs in the reproduced sound supplied to the player main body and reproduced.

Therefore, a compact and high-performance auto player can be realized, and the intended purpose can be achieved.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention: Fig. 1 is a perspective view, Fig. 2 is a perspective view showing the operation, Fig. 3 is an exploded perspective view of the main parts, and Fig. 4 is the configuration of the main parts. FIGS. 5 to 9 are explanatory diagrams showing other examples of essential parts, respectively. 1... Player body, 2... Elevator, 3... Disk box, 4... Carrier, CD... Compact disk, 21... Elevating box, 31... Disc tray.

Claims (1)

[Claims] 1. An elevator consisting of a lifting car with an opening at a suitable place on its circumference and a means for raising and lowering the elevator car is provided, and a disk box with an open side is removably housed in the elevator car, and a A compact disk characterized in that a plurality of disk trays are housed horizontally and in parallel through openings so that they can be freely inserted and removed, and an elevator is electrically controlled to bring the disk trays to predetermined supply positions. - Elevating mechanism in auto player.