JPH0135327Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a pull-out type disc player that can automatically store discs.

[Background technology and its problems]

As a disk player for reproducing information recorded on a rotating disk, there are two types: a type in which the disk is placed on a turntable and the top cover A is closed, as shown in Figure 1a, and a pull-out type as shown in Figure 1b. There is a method in which a disk is placed on a disk tray B and stored in a disk player.

The method shown in FIG. 1a is not preferable because the top surface of the disc player cannot be used to open and close the top cover A, and the storage space becomes large.

The method shown in Fig. 1b allows the disks placed on the disk tray B to be accommodated in the disk player, so the storage space for the disk player is small, and it is especially suitable from the viewpoint of safety as an optical disk playback device. However, in order to have a mechanism to pull out the disk tray B in the horizontal direction and to hold it at the point where it is pulled out, the depth L of the disk player must be at least 1.5 to 2 times the diameter of the disk, which is an obstacle to compactness. . However, if the length of the drawer of the disk tray B is reduced, the disk will have to be inserted and set diagonally, which has the disadvantage of easily damaging the disk.

[Purpose of invention]

In order to solve this problem, this invention provides a disc player in which the disc tray has a two-layer drawer structure and the depth of the disc player is reduced.

[Summary of the idea]

In order to achieve the above object, this invention uses an intermediate moving support member (first rack member) that slidably supports the disk tray, and the intermediate moving support member is connected by a first gear. Since the disc tray is configured to be reciprocated and driven by a second gear that rotates with the reciprocation, the depth of the disc player and the moving distance of the pulled out disc tray are approximately the same. This allows the disc player to be made compact.

〔Example〕

Figures 2a and 2b show the principle of the pull-out type disc player of this invention, in which 1 shows the base of the disc player, 2 shows the intermediate moving support member, and 3 shows the disc tray on which the disc is mounted. 4 is a space in which the disk tray 3 is accommodated, and 5 is a top plate of the disk player.

The base 1 of the disc player has four rollers 1
a, 1b, 1c, and 1d hold the intermediate moving support member 2 movably in the horizontal direction, and the disk tray 3 is further supported by four rollers 3a, 3b, 3c, and 3.
d is held movably in the horizontal direction by the intermediate movable support member 2. The intermediate moving support member 2 has an intermediate gear 2 that meshes with both a rack 1A provided on the base 1 of the disk player and a rack 3A provided on the disk tray 3.
It supports A.

The principle of the pull-out type disk player of this invention is as described above, and now in the state shown in FIG. When pulled out, the disk tray 3 resting on the intermediate moving support member 2 is also pulled out. At this time, the intermediate gear 2A, which is pivotally supported by the intermediate movement support member 2, is
The rotating force of this intermediate gear 2A is transmitted to the rack 3A of the disk tray 3, so the moving speed of the disk tray 3 is twice the moving speed of the intermediate moving support member 2. Become.

Therefore, as shown in FIG. 1b, when the intermediate movable support member 2 is about half pulled out from the disk player, almost the entire disk tray 3 is pulled out from the disk player.

As shown in FIG. 2b, since the disk tray 3 is horizontally supported by at least a distance ₁ , the horizontal holding force is sufficient even when the disk tray 3 is completely pulled out.

In addition, when the disc player is stored, the distance ₁ mentioned above converges to almost 0, so the depth L of the disc player
can be made comparable to the dimensions of the disk tray 3.

FIG. 3 shows a specific embodiment of this invention, in which a drawer-type disc player is used.
FIG. 3 is a cross-sectional view of the disk tray drive section. In this figure, 10 is the housing of the disk player,
11 is a chassis serving as a base; 12 is a motor fixed to the chassis 11; 13 is a drive gear; 14 is a roller that supports the first rack member 15 so as to be movable in the horizontal direction; This intermediate gear is pivotally supported by one rack member 15, and this intermediate gear 16 meshes with a rack 17 provided on the chassis 11. 18 is a second rack member supporting the disk tray 20;
A rack 19 that meshes with the intermediate gear 16 is provided at one end, and the other end is slidably supported by the first rack member 15 by implanted rollers 21 and 22. ing.

With this structure, when the motor 12 is rotated, the first rack member 15 is moved to the roller 14 by the drive gear 13.
You will be guided and pulled out. At this time, intermediate gear 1
6 engages with the rack 17 and rotates, so the second rack member 18 is pushed forward at twice the moving speed of the first rack member 15, and the disk tray 20 is pulled out. . The motor 12 is stopped by a limit switch (not shown) which operates when the disk tray 20 is fully pulled out (FIG. 2b).

After the disk is set on the disk tray 20, it can be pulled into the housing 10 of the disk player by rotating the motor 12 in the reverse direction (FIG. 2a).

FIG. 4 shows the main part of another embodiment of this invention in which three small gears 16A, 16B, and 16C are provided in place of the intermediate gear 16.

In this embodiment, the end portion 11 of the chassis 11
a and the end 18a of the second rack member 18 connect the three small gears 16A, 16B, 16C so that they can be separated by a distance ₂ .

Therefore, the position of the second rack member 18, that is, the position of the disk tray 20, is pushed further forward when the disk is set, so that the disk tray 20 can be made even smaller. .

[Effect of idea]

As explained above, the pull-out type disk player of this invention has a structure in which the disk tray on which the disks are set is protruded through the first rack member, so that the disk player can be placed at a depth that is approximately the same as the length of the disk tray. It has the advantage that it can be configured and the player can be made compact. Furthermore, since the disk tray can be used widely when it is pulled out, it has the effect of making it easier to set disks.

[Brief explanation of the drawing]

Figures 1a and b are diagrams for explaining the setting method of a disc player, Figures 2a and b are principle diagrams of the pull-out type disc player of this invention, and Figure 3 is a disc that is an embodiment of this invention. FIG. 4 is a cross-sectional perspective view showing the tray drawer structure, and a schematic view showing another embodiment of the intermediate gear. In the figure, 11 is the chassis, 12 is the motor, and 13
15 is a drive gear, 15 is a first rack member, 16 is an intermediate gear, 18 is a second rack member, and 20 is a disk tray.

Claims (1)

[Scope of utility model registration request] A first gear rotatably driven by a motor, a first rack member that is moved horizontally by the first gear, and a rack member provided on the first rack member that engages with a stationary rack member. A drawer type, characterized in that the disc tray is provided with a second gear and a second rack member that is slidably supported by the fixed side rack member and meshes with the second gear. disk player.