JPH04137542U - Overloading prevention mechanism for disc players, etc. - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to more easily prevent overloading in a disc player, etc., and also to control loading. [Structure] A friction member is provided to prevent overloading of the disk, and at the same time, a control device operated by the friction member is provided.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to an overloading prevention mechanism in disc players, etc. .

0002

[Conventional technology]

If you accidentally place two discs on the tray of a conventional disc player, etc. When the disc is stored in a set and put into playback mode, the force supporting the disc weakens, causing it to become eccentric. There is a risk of rotation. As a result, the disc may become damaged inside the set or the disc may become damaged inside the set. There was a problem with surrounding parts being damaged and malfunctions occurring.

0003 Therefore, as a solution to the above-mentioned conventional problems, Japanese Patent Application Laid-Open No. 53-81103 Some of these are disclosed in Japanese Patent Publication No. 63-53627. However, according to the above, it is not possible to use a tray with an autoloading disc player. Instead, double loading is prevented with a pin. When transporting the disc, the disc is placed in a predetermined position approximately parallel to its recording surface. a transport mechanism that transports the disc to the predetermined position, and a transport mechanism that transports the disc to the recording surface at approximately right angles to the recording surface. and a disc playing means that plays the disc while being held and rotated in a certain direction. In conjunction with the clamping operation of the disc clamping member of the playing means, the disc is transported by the transport mechanism. The disc is transported by protruding in the same direction as the clamping operation direction of the disc clamping member. This is a mechanism to prevent this from happening.

0004

[Problem that the idea aims to solve]

Therefore, the present invention has been devised in consideration of the above circumstances, and has a simple structure that allows for overload loading. The purpose of this is to provide a mechanism that can prevent this from occurring.

[0005]

[Means to solve the problem]

This invention has a friction part such as a rubber plate at the entrance and exit of the tray to achieve the above purpose. If there is only one disc on the tray, the frictional force of the friction member is If there are two or more discs on the tray, the ejection resistance of the The feature is that the frictional force of the material is set to be greater than the ejection resistance of the disc. It is something.

[0006]

【Example】

Below is a drawing of an embodiment of the disc overloading prevention structure of the present invention. Refer to and explain.

[0007] Figure 1 is an overall perspective view of the disc player according to the present invention, and Figures 2 and 3 are the disc player according to the present invention. FIG. 1 is an overall perspective view of a disc player showing a disc overloading prevention structure. moreover, 4 and 5 show a structure for preventing overloading of discs in the disc player. FIG.

[0008] This disc player (1) has a tray (2) that can be moved in and out. (2) is formed into a circular recess (4) so that the disk (3) can be placed therein. and The disc player (1) is provided with a friction member (6).

[0009] The friction member (6) is installed inside the entrance/exit (7) of the tray (2) of the disc player (1). This friction member (6) is attached to the housing so that it hangs down from above. It is.

0010 Furthermore, a leaf spring (5) is provided to apply a load to this friction member (6). . The relationship between the frictional forces of the friction member (6), disk (3), and tray (2) is as follows. be.

[0011] When one disc (3) is placed on the tray (2), the disc ( 3) discharge force (friction coefficient between friction member (6) and disk (3) x load due to leaf spring) The force that keeps the disc (3) on the tray (2) (friction coefficient between the disc (3) and the tray (2) x (Load due to leaf spring + disc weight)).

0012 Furthermore, when two discs (3) are placed on the tray (2), the friction member (6) Discharge force of disk (3) (friction coefficient between friction member (6) and disk (3) x leaf spring (5)) The force that keeps the disc (3) on the tray (2) (the friction coefficient between the discs x ( The load due to the leaf spring + disc weight))

[0013] Next, the operation of the present invention will be explained using FIGS. 4 and 5. When using only one disk (3), the force with which the disk (3) stays on the tray (2) Because it is large, it can be used without any problems. Also, even if you accidentally place two discs (3) on top of each other on the tray (2), The second disc (3) is ejected from the set by the friction member (6).

[0014] Furthermore, a disc player (1) equipped with a control function will be explained. 6 and 7 are longitudinal sectional side views of the disc player (1).

[0015] This disc player (1) is provided with a control device (8) inside the main body. the control device (8) can be operated by the friction member (6) and the leaf spring (5) that applies a load to the friction member (6). .

[0016] The contact point A (9) and the leaf spring (5) are connected, and the disk overload load explained earlier can be avoided. The control device is activated by contact between the leaf spring and contact B (10) due to the anti-friction structure. move. In the above control device (8), when there is only one disc (3), the load applied to the leaf spring (5) is small. Therefore, the contact B (10) and the leaf spring (5) are in a state where they do not contact each other (OFF state). Furthermore, when there are two discs (3), at the same time as the disc (3) contacts the friction member (6), , the load on the leaf spring also increases, and the contact point B (10) and the leaf spring (5) are in contact ( ON state). Then, the loading of the tray (2) is controlled by operating the control device (8). It can be controlled to stop or stopped and reversed.

[0017]

[Effect of the idea]

As explained above in detail, according to the present invention, the length and length of friction members such as rubber plates The strength of the leaf spring is appropriate, and the simple structure prevents heavy loading of discs, etc. can be prevented. Furthermore, problems such as damage to the disc can be solved and convenience for the user can be improved.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view of a disc player according to the present invention.

FIG. 2 is an overall perspective view of a disc player showing the disc overloading prevention structure of the present invention.

[Figure 3] Overall perspective view of a disc player showing the disc overloading prevention structure of the present invention (during ejection)

FIG. 4 is a vertical sectional side view of a disc player showing the disc overloading prevention structure of the present invention. (When using one disc)

FIG. 5 is a longitudinal sectional side view of a disc player showing the disc overloading prevention structure of the present invention. (at the time of discharge)

[Fig. 6] Vertical side view of a disc player equipped with the control device of the present invention (OFF state)

[Fig. 7] Vertical side view of a disc player equipped with the control device of the present invention (ON state)

[Explanation of symbols]

(1) Disc player (2) Tray (3) Disc (6) Prevention member (8) Control device

Claims (1)

[Scope of utility model registration request] [Claim 1] A tray on which a disc can be placed,
In a disc player equipped with a tray that can be taken in and out of the disc player body, a friction member such as a rubber plate is provided at the entrance and exit of the tray, and when there is only one disc on the tray, the frictional force of the friction member is used to eject the disc. An overloading prevention mechanism for a disc player, etc., characterized in that the frictional force of the member is set to be smaller than the resistance, and when two or more discs are stacked on the tray, the frictional force of the member is larger than the ejection resistance of the discs. .