JPS62209790A - Cd player - Google Patents

Abstract

PURPOSE:To protect a compact disc to reproduce it safely and stably by providing a disc protecting plate which can be taken into and out of an open/close cover covering the upper face of a CD player body whose width is set to a half of the diameter of the disc. CONSTITUTION:An about half of a disc 7 is projected from between a CD player body 1 and an open/close cover 2 and the disc 7 is rotated in this state. An engaging projecting part 11 having a wedge-shaped cross section which is formed on the rear face of the open/close cover 2 is fitted to a guide groove 9 for leading-out formed on the surface of a disc protecting plate 8, and a grip 10 for leading-out provided in a corner part of the protective plate 8 is fitted to a notched part 2a in a corner part of the open/close cover 2 when the protecting plate 8 is stored on the rear face of the open/close cover 2. An operator sets the disc 7 into a recessed part 4 and closes the open/close cover 2 and holds the grip 10 to lead out the protecting plate 8 along the guide groove 9, and leading-out is terminated when the end face of the guide groove 9 is brought into contact with a projecting part 11. Thus, the disc 7 is protected and is reproduced safely and stably.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is for PA in a compact and highly safe CD player (compact disc playback device).

[Prior Art 1] Fig. 4 shows a conventional CD player that sought the ultimate in miniaturization. In the figure, (1) is the main body of the CD player, (2) is the opening/closing lid of the CD player, (3) is the turntable for rotating the disc, and (4) is the area around the turntable (3) for storing the disc. (5) is a pickup for reproducing information from the disc; (6) is a recess formed in the disc for guiding an information reading beam (not shown) emitted from the pickup (5) to the disc; This is a notch made in the depression (4).

The above shows a general CD player, in which a disc is mounted in the recess (4) and a pickup (5) is installed.
) is moved in the direction of the arrow within the notch (6) and the information signal on the disc is reproduced.

Figure 5 shows an external view of the device during disk playback. In Figure 5, (7) is attached to the turntable (3).
This is an M disc. The disk (7) rotates with approximately half of it protruding from between the CD player main body (1) and the opening/closing lid (2).

By configuring the CD player in this way, the dimensions of the player can be reduced, for example, depth 125 m x width 80 m.
w, it becomes possible to hang to a height of about 30mtn. The dimensions in this case are determined by the following extrusion process, and further reduction is extremely difficult except in the height direction.

First, it has a depth of 125 mm, but since the diameter of the Convex 1 head disk is 120 mm, this is the limit for the depth of the device. Next, although the width of the turntable is 80 InIR, the radius of the turntable whose supporting position for the disk is determined by the standard must be 16 m. Therefore, the minimum required R1 in the width direction is 76 mm, which is 60#, which is half the disk diameter, plus the turn deple. Adding the design and the thickness of the casing, the limit is 80m.

In addition, in the thickness direction, the disk motor (not shown) that rotationally drives the turntable (3) or the pickup (
5), etc., so the current number is around 30, but there is still the possibility of reduction.

[Problems to be solved by the invention] Since the conventional compact CD player V is configured as described above, there are cases where a hand or an object touches the disc that protrudes between the CD player body and the opening/closing lid during playback. However, there are problems in that it is dangerous and may deteriorate playback performance.

The present invention has been made to solve the above-mentioned problems, and therefore, it is an object of the present invention to provide a small 1q CD player that is safe and has stable playback conditions.

[Means for Solving the Problems] The small CD player according to the present invention is provided with a disc protection plate that can be taken out and put in the opening/closing lid, and during playback, this disc protection plate allows the disc to be removed from between the CD player 17 main body and the UnO1 lid. The upper surface of the protruding disk is covered to prevent it from coming into contact with the nuclear disk.

[Function] The disc protection plate according to the present invention protects the nuclear disc by pulling it out from inside the lid during playback, covering the CD player body and the top surface of the disc that protrudes from the opening/closing lid, so that playback is safe. And it can be done stably.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. In FIG. 1, in which the same reference numerals are attached to the circumferential parts as in FIG. 3,
(8) is a disc protection plate, (9) is a disc protection plate (8)
) is formed on the surface of the drawer guide groove (9).As shown in FIG. ) are mated.

(10) is a drawer handle provided at the corner of the disc protection plate (8), which opens and closes the disc protection plate (8).
2) If you store it in the real part and cover it, open r! 1. It fits into a notch (2a) at a corner of the lid (2).

Next, the operation will be explained. As in the conventional disc device, the disc is mounted in the recess (4) and the opening/closing lid (2) is closed. After that, the operator grasps the handle (10) and pulls out the disc protection plate (8) along the guide S groove (9) in the direction of the arrow in FIG. Part (1
The drawer ends at the position where it touches 1).

The pulled-out disk protection plate (8) covers the top surface of the disk (7) as shown in Figure 2, and the disk (7) is exposed from the top surface.
Protect them so that they cannot come into contact with them. in this case,
A space is provided between the disk (7) and the disk protection plate (8) so that they do not come into contact with each other.

When the playback is completed, the disk protection plate (8) is housed in the R-closing lid (2) by reversing the above-mentioned operation.

In addition, in the above embodiment, the guide groove (9) and the engagement protrusion (11)
Because of the dovetail groove fitting, the pulled-out disk protection plate (8) is held so as not to fall off, and the pulled-out direction is guided. Furthermore, although the side surface of the disk is not protected in the illustrated example configuration, a downward edge may be provided on the side edge of the disk protection plate (8) in order to protect it.

The handle (10) does not need to be located at the corner of the disc protection plate (8), but may be located anywhere and may have any shape. Furthermore, although the disc protection plate (8) is provided on the back surface of the opening/closing lid (2) in the embodiment shown, it may be located on the front surface of the opening/closing lid (2).

[Effects of the Invention] As described above, according to the present invention, the opening/closing lid is provided with a disc protection plate that can be pulled out and protrudes to the outside, and the top surface of the nuclear disc is covered with the disc protection plate during playback of the disc. Therefore, it is possible to obtain a CD player that is compact when not playing, that is, when being carried around, but is stable during playing.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a CD player according to an embodiment of the present invention, FIG. 2 is a perspective view of this CD player V during playback,
Figure 3 is an enlarged sectional view of part of the lid, Figure 4 is a conventional CD
FIG. 5 is a perspective view showing the CD player 17 during playback. In the figure, (1) is the CD player body, (2) is the opening/closing lid, (8> is the disc protection plate, (9) is the guide groove, (10 is
) is a handle, and (11) is an engaging protrusion. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (3)

[Claims] (1) A CD player whose width in the width direction is set to about half the diameter of a compact disc, characterized in that the CD player is equipped with a disc protection plate that can be inserted into and taken out of an opening/closing lid that covers the top surface of the CD player main body. (2) The CD player according to claim 1, wherein the disc protection plate is provided with a pull-out handle. (3) A CD player according to claim 1, characterized in that a guide groove for relatively guiding insertion and removal and an engaging convex portion are provided on opposing surfaces of the opening/closing lid and the disc protection plate.