JPS58182175A - Disk loading device - Google Patents

Abstract

PURPOSE:To permit a single driving source to open and close a cover and also release it from being clamped securely by providing a means for displacing a disk clamping means in a clamping release direction when the cover is opened or closed and another means for driving the cover. CONSTITUTION:When a switch, etc., is operated for opening the cover, a motor 9 rotates to rotate a cam member 12 in a direction A. Consequently, the 1st and the 2nd lock levers 16 and 17 rotate in a direction B and a coupling lever 20 moves in a direction C. Therefore, a shaft 21 is moved in the direction C to allow a displacing member 22 to oscillate around a shaft 23 fixed to the cover, and the other end of the displacing member 22 abuts on a top plate 2a constituting the clamping device 2. The abutting allows the clamping device 2 to leave from a disk D.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a disc loading device.Recently, digital audio discs (DAD), which convert analog signals such as audio signals into digital signals and record them on a recording medium, have become popular. Compared with the traditional analog audio disc (AAD), such a digital e-audio disc (DAD) has been proposed
The diameter is 121 (in addition, the Combak B developed by Philips
It has excellent effects such as small size (disc), long playback time, and good sound quality. Furthermore, since the disk is small and easy to handle, it can be installed and removed in the same way as the cassette Q1.

Therefore, the purpose of the present invention is to open and close the l2N like a kayak tape to allow the disk to be installed and removed.
This is a disc mounting device that is designed to release the clamping of the disc by the clamping device when the C1 is opened.

Please refer to Figure 11 below for an embodiment of the present invention.
Explanation.

FIG. 1 is a diagram showing a disc loading device according to the present invention.
Dl is a disk, ... is fixed to the front plate 19 (S shown in the figure), (2; is a clamp device attached to the front plate 11) at a faceted groove, and the device main body side C: the turntable 12f provided. Clamp the disk IDI with the magnetic force.
Clamp disk ID+. C3) is the bottom chassis, and (4) is the drive unit chassis attached to the bottom chassis (3), which is the motor unit for driving the disk (T5+) and reading the information recorded on disk 1. A motor (61) and a pick-up feeder (7) are used to feed the big lug (not shown in the figure) equipped with an optical system in the radial direction of the disk (81 is the bottom chassis). On the loading unit chassis attached to (3), a loading motor (9), a reduction gear υO1 that decelerates the rotational driving force of the motor (91), and a cam member n3 that carries a cam Oυ are mounted on the loading unit chassis C.
There is. 031 is a lever that interlocks with the lid (not shown), one end of which is pivotally connected to the rotary shaft 1 of the mold, and a spring 051 attached to the rotary shaft 041 allows the full! The end is the cam member (1
It is pressed against the old cam 1 of No. 3. n61n71 is the first and second lever mounted on the loading unit chassis (8) and connected to the shaft 0! l°〔
There is a connection r゛C. Note that the 10th lever C1θ follows the second cam 1111 of the cam member, and the 20th lever C1θ follows the second cam 1111 of the cam member.
lη has a lock (1 (17a)).The handle is a connecting lever that moves according to the 1st and 20th levers tl fil On.
It is fixed to the connecting shaft 119 of the SAN, and the other end has a long hole (20a
) The shaft rl11 is loosely fitted into the shaft. + A displacement member that displaces the clamp device ■ in the clamp release direction when the clamping lever α1 moves.

One end is fixed to -1211, and the other end is attached to the g°C clamp device (
2) The operation of releasing the clamp when the lid is opened by such a device will be explained.

Fist diagram 2: When a switch (not shown) is operated to open the lid from the non-closed state, the motor (9) rotates, and this rotational force is transmitted to the cam member 03 via the worm and reducer αG.
is transmitted to rotate the cam member 02 in the A direction. Such cam member 0? When rotates T in the A direction, the tip end (11m) of the cam 01 presses in the direction of the tenth vine lever 061vB. Then, the 10th lever +161 and the connecting shaft Il
11! 20 lever o71b loading unit connected at l.111 installed in loading unit chassis +81
! (It is rotated in 8 directions around +81. In this way, when the first and $20 levers oea'n are rotated in the B direction,
The connecting lever ■ whose one end is fixed to the connecting shaft Og moves in the C direction. Therefore, the shaft C2D loosely fitted to the other end of the connecting lever ■ is also moved to the end of the elongated hole (20 m) in the -(C direction. When ll1l12D moves in the C direction in this way, the displacement member of the lid Seesawing around the 10 fixed on the
The other end of the displacement member (2) comes into contact with the upper plate (2 m) constituting the clamping device (2) (see Figure 3). Due to this contact, the clamping device (2+) is separated from the disk beam. (2) If a plastic knee made of elastic material is attached to the part that contacts the upper plate (2a), the displacement member and the upper plate (2a) can be attached.
1), the clamping device μ including the upper plate (2a)
) The rotation of the rotating part can be reliably stopped by applying a brake to the rotating part.

However, in reality, it is not possible to release the clamp of disk 1 due to the clamp Ml (2N=2) only by contact between the displacement member and the upper plate (2a) of the clamping device (21). The clamping device 1 (
The clamp of disk 1 by 21 can be released and the lid can be opened.

That is, when the cam member 03 continues to rotate in the A direction,
The lever 0 is rotated by the cam ant= of the cam member 03 in the D direction (that is, the direction in which the buds are opened in conjunction with the lever 03). In addition, the biasing force of the spring a wound around -041 is changed by a % displacement member, so that the turntable (2
), 11 tarans 1 device (2)
It is clear that the force is larger than the waiting clamp.

As described above in detail, according to the present invention, the disk re-tE,
An openable/closable lid provided on the main body of the device, a disk clamping means for clamping down the disk, a gap means for displacing the disk clamping means in the direction of unclamping during the opening operation, and a driving means for driving the IF and the displacement means. Therefore, the lid opening operation and the clamp release operation can be reliably performed using a single displacement source.

[Brief explanation of the drawing]

FIG. 1 is a T perspective view showing an embodiment of the present invention, FIG. 2 is a T view showing the lid closed state, and FIG. 3 is a T view showing the clamp released state. Kei...clamp device 1. 03 翰...Cam member and connection lever that constitute the driving means, 述...Displacement member.

Claims (1)

[Claims] ■ Disc retJl device main body (two openable and closable lids, a disc cod 21 means for clamping the disc, and a displacement for displacing the disc tarlamp means in the direction of unclamping when the clamp is operated) A disc mounting device comprising: means and a drive means for driving the lid warp displacement means.