JPH06131770A - Damper device - Google Patents

Abstract

PURPOSE:To eliminate the need of oil or grease, etc., and also to perform good opening operation of a lid body by bringing a cassette holder into slide contact with a damper main body formed of a gell-state material at the time of the opening operation. CONSTITUTION:The damper main body 4 having a friction surface is formed of the gell-state material, and this damper main body 4 is fitted to an equipment main body 24, so that a damper function is proved by sliding contact of the lid body on the friction surface of the damper main body 4 at the time of the opening operation of the lid body. Thus, since the damper function can be proved in sliding contact of the cassette holder with the damper main body formed of the gell-state material, it is not necessary to use oil or grease, and the damper function can be prevented from deteriorating due to a secular change.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper device used in a lid opening / closing mechanism for audio equipment and the like.

[0002]

2. Description of the Related Art Conventionally, some damper devices use a gear, and the structure thereof will be described with reference to FIGS.

In FIGS. 5 and 6, the cassette holder 21 is provided with a rack 22 on the arm, and the fulcrum shaft 2
3 is rotatably attached to the device body 24 and is constantly urged in the opening direction by a spring. Also, the device body 2
A gear 26 is rotatably attached to the rack 4 through a gap 25 filled with oil or grease.

The cassette holder 21 is rotated about the fulcrum shaft 23 in the opening direction by the urging force in the opening direction. As a result, the rack 22 provided on the arm portion also rotates, and the gear 26 meshing with the rack 22 rotates. On the other hand, since oil, grease, or the like is injected into the gap 25 between the gear 26 and the device body 24, a resistance due to viscosity acts on the rotation of the gear 26, and opening / closing operation of the cassette holder 21 provided with the rack 22 meshing with the resistance is performed. It had a damper function.

[0005]

However, in the above-mentioned conventional device, the oil or grease injected into the gap between the base portion and the gear portion of the damper body leaks or evaporates due to aging. However, there was a problem that the damper function was not exhibited.

An object of the present invention is to provide a damper device capable of preventing deterioration of the damper function caused by aging by molding a damper body having a damper function with a gel material.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a damper device which exhibits a damper function against the opening operation by a spring of a lid pivotally supported on a device body, wherein the damper body having a friction surface is made of a gel material. This damper body is molded and attached to the main body of the device, and when the lid body is opened, the lid body slides on the friction surface of the damper body to exert a damper function.

Further, the friction surface is formed in a tapered shape so that the frictional resistance of the cassette holder increases with the opening operation of the lid.

[0009]

Therefore, when the lid is opened by the spring, the lid comes into sliding contact with the friction surface formed on the damper body, so that contact resistance is applied to the lid, and the damper function is exerted by the contact resistance. .

Further, since the friction surface is formed in a tapered shape, a damper function suitable for the open state is exhibited.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view of a damper device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is an exploded perspective view of a damper device according to an embodiment of the present invention. Is.

1, 2 and 3, the cabinet 1 is provided with a hole 3 for rotatably mounting a cassette holder (lid) 2 and a groove 5 for mounting a damper body 4. An eject lever 6 for fixing and holding the cassette holder 2 when the cassette holder 2 is closed is provided.

A lock member 8 for fixing and holding the cassette holder 2 in a closed position by engaging a fulcrum shaft 7 for pivotally attaching to the cabinet 1 and an eject lever 6 provided in the cabinet 1 on the cassette holder 2. And a boss 10 for attaching the torsion spring 9 to the cassette holder 2 by abutting the boss 10 for attaching the torsion spring 9 on the cassette holder 2.
1 and are provided.

Further, the damper body 4 is formed of a gel-like substance, and has a friction surface 12 that allows the cassette holder 2 to exert a damper function by sliding contact with the cassette holder 2 and a groove 5 provided in the cabinet 1. The ribs 13 provided to face each other are provided. The friction surface 1
Reference numeral 2 is formed in a tapered shape so that the frictional resistance increases with the opening operation of the cassette holder 2.

The cassette holder 2 is pivotally attached to the cabinet 1 by inserting the fulcrum shaft 7 into the hole 5, and is constantly urged in the opening direction by the torsion spring 9, and the damper body 4 has the rib 13 and the groove 5 in the opening direction. The cabinet 1 is fitted into the cabinet 1 by fitting it into the cabinet 1. The rib 13
Is formed to be larger than the groove 5 and compressed so that it does not come off after fitting.

Next, the operation of the device of the present invention having the above configuration will be described. When the eject button (not shown) is operated in the closed state of the cassette holder 2, the engagement between the eject lever 6 and the lock member 8 is released, and the urging force of the torsion spring 9 causes the cassette holder 2 to open and close around the fulcrum shaft 7. Move.

Along with this, the arm portion of the cassette holder 2 is brought into sliding contact with the friction surface 12 of the damper body 4, so that frictional resistance and elastic deformation occur, and the cassette holder 2 exhibits a damper function. Further, since the friction surface is formed in a tapered shape, the friction resistance increases as the cassette holder 2 opens. As a result, the frictional resistance is small in the initial stage of cassette holder opening, which does not require much frictional resistance.
Since the frictional resistance can be increased in the latter stage of opening the cassette holder that requires frictional resistance, the opening operation can be reliably started, and then the damper function can be exerted.
A better opening operation can be obtained.

[0019]

As described above, according to the present invention, when the cassette holder is opened, the damper function can be exerted by the cassette holder slidingly contacting the damper body formed of the gel-like substance. Since it is not necessary to use, it is possible to prevent the deterioration of the damper function caused by the change over time.

Further, by forming the friction surface in a tapered shape, the frictional resistance can be changed according to the opening angle of the cassette holder, so that the cassette holder can exhibit a damper function suitable for the opened state.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a damper device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an exploded perspective view of a damper device according to an embodiment of the present invention.

FIG. 4 is a structural explanatory view of a damper device which is a conventional example.

FIG. 5 is a structural explanatory view showing an operating state of a damper device which is a conventional example.

[Explanation of symbols]

 1 Cabinet 2,21 Cassette Holder (Lid) 3 Hole 4 Damper Main Body 5 Groove 6 Inject Lever 7,23 Support Shaft 8 Lock Member 9 Torsion Spring 10 Boss 11 Protrusion 12 Friction Surface 13 Rib 22 Rack 24 Equipment Main Body 25 Gap 26 Gear

Claims (2)

[Claims] 1. A damper device for exhibiting a damper function against opening operation by a spring of a lid pivotally supported on a device body, wherein the damper body having a friction surface is molded from a gel material, and the damper body is formed on the device body. A damper device, which is mounted on a main body and is configured to exert a damper function by sliding contact with the friction surface of the damper main body when the lid body is opened. 2. The damper device according to claim 1, wherein the friction surface is formed in a tapered shape so that the frictional resistance of the cassette holder increases with the opening operation of the lid.