JPS63106980A - Compact disk player - Google Patents

Abstract

PURPOSE:To obtain a portable compact disk reproducing device being miniaturized and having high safety, by housing a player box in a player box cover at time of non-reproduction, and performing reproduction without exposing a disk to the outside after drawing out the player cabinet by sliding it from the player box cover. CONSTITUTION:The titled player is constituted of the player box 9 and the player box cover 10, and the player box 9 is constituted in a size value to form a volume capable of housing a reproduction mechanism, and incorporates the sliding mechanism of a compact disk player main body 1. At the time of non-reproducing, the player box 9 is housed in the player box cover 10, and the upper plane of the compact disk player main body 1 is protected by a disk player cover 2. When the disk 7 is mounted, firstly, the disk player cover 2 is raised, and the disk 7 is mounted on a turntable 3. Next, the disk player cover 2 is closed again, then a state goes to a reproduction state.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an audio device using an optical disk for optically detecting and reproducing information stored on the surface of a recording medium, and in particular to an audio device that is small and safe. This invention relates to a highly portable portable compact disc playback device.

[Conventional technology] In recent years, compact disc players, which are core models of audio equipment and have improved important elemental technologies such as optical pickup optical systems and ICs, and are designed to be mass-producible, are frequently installed in popular audio sets. .

FIG. 4 shows a conventional example of a compact disc player for such a popular audio set, and is an external perspective view showing a small compact disc playback device for playing back information stored on an information recording medium.

In the figure, a compact disc player lid (2) is disposed in a part of the compact disc player (1),
A turntable (3) for rotating a disk-shaped recording medium disk is disposed inside the center, and a recessed area (4) is formed around the turntable (3) for storing the disk. A notch (6) provided in the concave area (4) for an optical pickup device (5) for reproducing information from a disc-shaped disk.
is formed, and guides the information reading beam (not shown) emitted from the optical pickup device (5) to the disk-shaped recording medium disk. Further, operation buttons (8) such as a braining button and a stop button for operating the compact disc player (1) are arranged on the front surface of the player (1).

In the compact disc player (1) as described above, a disc-shaped recording medium disc is loaded in the four-part area (4), and the pickup device (5) is inserted into the notch part (6).
By moving within the recording medium disk in the direction of the arrow as shown in FIG. 4, the information signal within the recording medium disk is reproduced.

FIG. 5 shows a schematic perspective view of the apparatus during reproduction of disc information.

Conventionally, in order to miniaturize the device, the disc-shaped recording medium disk (7) rotates while protruding from the main body (1) and lid (2) of the compact disk player, and as a result, the size of the player main device is reduced. For example, as explained below, the depth is 80mm, the width is 125mm, and the height is 30i1.
1! It becomes possible to store almost all the component elements in a volume with a size of l.

First, the width is 125 mm, but since the diameter of a compact disc is 120 mm due to standards and other constraints, the width of the device is actually a little over 120+nm as long as the disk is placed inside the device. The limit value is approximately 125 m+s.

Next, the depth dimension value is 80 m+s, but since the position to support the disc-shaped recording medium disk is determined by the standard, the diameter dimension of the turntable must be 32 meters. Therefore, the required dimensions in the depth direction are 172 mm, which is the diameter of the circular disc, and 172 mm, which is the diameter of the turntable.
78 considering /2 (16mm)! The minimum amount for III is required. Furthermore, considering the practical design and the thickness of the casing, the limit value is approximately 80 mm.

As explained above, conventional compact disc players have been made smaller by protruding the disc to the outside during playback.

[Problems to be Solved by the Invention] Conventional small compact disc players have been constructed as described above, so there is a risk that hands or other objects may come into contact with the disc-shaped information recording medium disc during playback operation. At the same time, it had the drawback of deteriorating playback performance.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a small compact disc player that is safe and can maintain stable playback operation.

[Means for solving the problems and their effects] The handy compact disc player according to the present invention has the following features:
A player box for storing the compact disc player whose depth dimension value of the player body is approximately 1/2 of the diameter of the disk-shaped information recording medium disk as in the past, and a player box lid for storing the player box in a drawable manner. When reproducing information stored on a disk-shaped recording medium disk by optical means, the player box is pulled out from the player box lid to protect the disk and perform one-way playback. Sometimes the player box is pushed into the player box lid to make the device smaller.

[Example] A first embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1A-IC, a player box (9) houses a playback mechanism for a disc-shaped optical recording medium disk, and a player box f (10) is arranged to draw out the player box (9). It is set up.

Here, the same or equivalent parts as in the conventional example shown in FIG. 4 described above are given the same reference numerals.

Next, the operation of the embodiment of the present invention will be explained.

FIG. 1A is a perspective view illustrating the external appearance of the apparatus according to the embodiment when not reproducing, and FIG. FIG. 1C is a perspective view illustrating the external appearance of the optical recording disk (7) device when a disk is mounted.

An embodiment of the compact disc player according to the present invention is as follows:
It basically consists of a player box (9) and a player box lid (10). Compact disc player box (
9) is configured to have dimensions that form a volume capable of accommodating a playback mechanism, and also incorporates a slide mechanism (not shown) for the compact disc player main body (1). When not playing, the player box (9) is stored inside the player box lid (10), and the dimensions of the device are approximately 80 mm deep and 12 mm wide.
5 openings and a height of 30 mm. The top of the compact disc player body (1) is the disc player lid (2).
) is protected.

Next, a perspective view of the external appearance of the apparatus when the disc (7) is mounted on the compact disc player main body (1) will be explained with reference to FIG. 1C. The compact disc player main body (1) is moved along the compact disc player main body sliding mechanism (not shown) disposed inside the player box (9) and the player box lid (1).
0) Pulled out to form the expanded player body shown in FIG. 1C. A slide stop mechanism (not shown) is disposed at the end of the slide portion of the aforementioned compact disc player body slide mechanism, and the amount by which the player box (9) can be pulled out is determined by the position of this slide stop mechanism. By appropriately selecting the position of the slide stop mechanism, the expanded player body described above can be sized appropriately to efficiently accommodate one compact disc therein.

The present apparatus is constructed as described above, and the expanded outer diameter of the player body is approximately 125w x 125mm, which achieves the best efficiency in playing compact discs.

To install the disc (7), the disc player lid (2) is then lifted as shown in Figure 1C,
A disc (7) is mounted on the turntable (3). Next, by closing the disc player lid (2) again, the disc player enters the playback state.

FIG. 1B shows this state.

Figures 2A and 2B show m2 and a third embodiment of the compact disc playback device according to the present invention, which is provided with a disc protection plate. The same parts as in the conventional example shown in FIG. 4 are given the same reference numerals. In the second embodiment, the player box lid (10) is provided with a disc protection plate (11) or (14), and these disc protection plates (11) and (14) are exposed and rotated during disc playback. This is to protect the disk (7) from being inadvertently touched from above by objects, and in the second embodiment shown in FIGS. 2A and 2B, a rotary pull-out type disk protection plate (11) is Figures 3A and 3B show the slide-out type disc protection plate (14) separately for when the player is stored and when the disc is played.

FIG. 2A shows an example in which a semicircular disk protection plate (11) is housed in the player box lid (10), and the disk protection plate (11) is rotated about a rotation axis (12).

The operation of rotating and pulling out the disk protection plate (11) is performed, for example, by the operator holding the handle (13) and rotating it in the direction of the arrow in FIG. 2B. The disc protection plate (11) is attached to the player box lid (10) and is placed at a sufficient distance from the disc (7), so that the top surface of the disc can be protected with sufficient margin. Also, the handle (1
3) has a function as a stopper against the rotation of the disk protection plate (11).

FIG. 2B shows the player with the disc protection plate (11) applied and the player in the playback state.

FIG. 3A shows a second example of the disk protection plate.

The figure shows a slide-out type disk protection plate (14
) is stored on the back side of the player box lid (10). When protecting the disc during playback, the disc protection plate (14) is pulled out along a slide mechanism (not shown). FIG. 3B shows the state at this time. For example, if nine handles (15) are provided in this drawer operation,
This drawing operation is easy. Furthermore, a handle like this (
15), it can also serve as a stopper when the disc protection plate (14) is stored.

[Effects of the invention] As explained above, according to the present invention, since the player box is retractably housed inside the player box lid, the volume becomes smaller than the disc size when not playing, and although it is a small portable device, it has a small volume during playback. The disc-shaped optical disc is not exposed outside the compact disc player main unit, and a safe and convenient compact disc player can be obtained.

[Brief explanation of the drawing]

1A, IB, and IC diagrams are diagrams showing a compact disc player according to a first embodiment of the present invention, FIG. 1A is an external perspective view of the compact disc player when the main body is stored, and FIG. 1B is a diagram showing a disc player according to a first embodiment of the present invention. FIG. 1C is a perspective view of the player's appearance during playback of optical disc information; FIG.
, 2B are diagrams showing a second embodiment of the present invention in which an optical disk protection plate is added, FIG. 2A is an external perspective view of a player housing a rotating optical disk protection plate, and FIG. 2B is a rotating type optical disk protection plate. FIG. 3A is an external perspective view of a player that uses an optical disk protection plate to play back an optical disk. FIG. , FIG. 4 is an external perspective view of a conventional small compact disc player, and FIG. 5 is a conventional FIG. 2 is an external perspective view of an example of a small compact disc player that plays back an optical disc. In the figure, (1) is the compact disc player body, (9) is the player box, (1o) is the player box lid, (1
1) and (14) are optical disk protection plates, and (12) is a rotating shaft. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Patent attorney Masuo Oiwa (and 2 others) Figure 2A Figure 2B Figure 11: Disc protection plate Figure 3A Figure 38

Claims (3)

[Claims] (1) In a compact disc player main unit in which the depth dimension of the audio player is set to a length equivalent to a radius of approximately 1/2 of the diameter of a disc-shaped compact information recording medium disc, the player box housing the playback function and the above-mentioned player box are provided. A player box lid that stores the player box in a drawable manner is provided, and when not playing, the player box is stored inside the player box lid to make the device smaller. During playback, the player box can be slid out from the player box lid and the disc can be pulled out. A compact disc player characterized by being able to play without being exposed to the outside. (2) A semicircular disk protection plate is disposed within the audio player box lid and is rotatable in parallel to the plane of the player box lid, and is rotatable about a rotation axis within the player box lid. A compact disc player according to claim 1. (3) A disc protection plate that can be slid out is disposed inside the audio player box lid, and the disc protection plate is pulled out to cover the top surface of the disc during disc playback. The compact disc player described in item 1.