JPH0548280Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a disk clamper device that includes a clamper that holds a disk.

BACKGROUND OF THE INVENTION In recent years, compact disc players have used a clamper device with magnetic attraction to hold the disc.

An example of a conventional disk clamper device will be described below with reference to the drawings.

FIG. 4 shows the structure of a conventional disk clamper device.

In FIG. 4, reference numeral 1 denotes a turntable made of magnetic material, which rotates on a support member 2 in a compact disc player. Reference numeral 3 designates a door as a clamper support, which is configured to be openable and closable so that it can be moved to a position close to the turntable. The disk clamper movably held on the support body 3 includes a clamper body 4 having a substantially U-shaped cross section and a flange around the periphery, and a scratch-preventing rubber 5 provided on the flange portion of the clamper body 4. A ring-shaped magnet 7 fixed with adhesive 6, a centering shaft 8 for inserting into the turntable fixed by caulking, and a mounting body 10 having a flange around the periphery attached with screws 9. The disc clamper is configured to be rotatably and axially movable and is held by the support body 3.

With a clamper device configured like this, disk 1
1 is placed on the turntable 1, and by closing the door 3 serving as a support, the rubber 5 hits the disk 11 due to the attraction force of the magnet 7, and is centered on the turntable 1 by the centering shaft 8. is performed and held in close contact. In this state, the disk clamper device is in a state where it can freely rotate relative to the support body 3 and rotates together with the disk 11.

Problems to be Solved by the Invention However, the means for fixing the magnet 7 to the clamper body 4 with the adhesive 6 in the conventional device configuration as described above has problems due to insufficient adhesive strength depending on the amount of the adhesive 6 applied. There is a problem in that the magnet 7 is misaligned or the parallelism of the magnet 7 becomes unstable, resulting in large variations in the attraction force and uneven rotation of the disk 11.

In addition, the adhesive requires time to dry, and screws 9 are used in several locations to attach the clamper body 4 and the mounting body 10, making the work difficult and costly. Was.

The present invention solves the above problems and provides a disk clamper device that is inexpensive, improves workability, and securely holds a magnet.

Means for Solving the Problems In order to solve the above problems, the disk clamper device of the present invention uses integral parts of the clamper body, the mounting body, and the centering shaft as molded parts, and uses elastic hook claws of the molded parts. A magnet is sandwiched between the molded products using the above molding, and an elastic piece is further provided to hold down the magnet.

Function The present invention has the above-mentioned configuration, and when a disk is pressed by a clamper means that uses the attraction force of a magnet, the magnet is sandwiched between the clamper body and the mounting body by a hook claw having elasticity of a molded product. By integrally molding an elastic piece that holds the magnet in place with the clamper body and the mounting body, it is possible to suppress the magnet's dislodgement and variations in the attraction force.

Embodiment Hereinafter, a disk clamper device according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of the clamper device, FIG. 2 is an exploded perspective view thereof, and FIG. 3 is a perspective view showing the lid including the clamper device in an open state.

In the figure, numeral 21 is a turntable for rotating a compact disk, which is supported by a support member 22 together with an optical pick. Reference numeral 24 denotes a disk clamper body, which is supported by a support body 23, and a lid body 19 attached to the cabinet 18 so as to be openable and closable.
The lid body 19 is provided with an open spring 20.
At that time, it acts to separate the disc clamper main body 24 from the turntable 21.

The disk clamper main body 24 is formed of a molded product, has a rubber 25 on its flange portion for abutting against and pressing against the compact disk 28, and has an elastic hook claw 24a formed by integral molding. There is. A magnet 26 is fitted and held between the disk clamper main body 24 and the mounting body 27. The mounting body 27 includes an elastic piece 27a having a convex portion that elastically presses against the magnet 26.
A locking square hole 27b is provided for inserting and locking the hook claw 24a of the clamper main body 24, and a shaft portion 27c protrudes toward the turntable 21 for centering.

When assembling the disk clamper device described above, as shown in FIG.
The elastic hook claws 24a formed on the clamper body 24 are fitted into the square holes 27b of the mounting body 27 through the clamp body 27a, and assembled into the support body 23. The magnet 26 is elastically fixed by contacting the protrusion of the elastic piece 27a formed on the mounting body 23 during assembly.

Effects of the invention As described above, the present invention sandwiches a magnet between the clamper body in which an elastic hook is formed and the mounting body in which an elastic piece is formed with a convex part.
By fixing using the above-mentioned elasticity, it is possible to improve the work variations and work time required by conventional adhesives, and also to prevent the magnet from coming off, thereby providing a stable rotational state of the disk. This is a very useful idea.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of essential parts of a disk clamper device which is an embodiment of the present invention, Fig. 2 is an exploded perspective view of the same when assembled, Fig. 3 is a perspective view of the overall configuration, and Fig. 4
The figure is a sectional view of a main part of a conventional disk clamper device. 21... Turntable, 22... Support member,
24... Clamper body, 24a... Hook claw,
26... Magnet, 27... Mounting body, 27a... Elastic piece, 28... Disc, 23... Support body.

Claims (1)

[Scope of utility model registration request] This is a clamper device that presses and fixes a disc against a turntable using the attraction force of a magnet, in which the magnet is sandwiched between two molded pieces, a clamper and a mounting body, and an elastic hook claw formed on the clamper is formed on the mounting body. What is claimed is: 1. A disk clamper device comprising: an elastic piece having a convex portion, which is held in place by a locking portion of the magnet;