JPS6235174Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a brake mechanism for a disc player.

As digital audio systems, photoelectric type, electrostatic type, and various other types of disk players have been developed.

This disk player is equipped with a small turntable, on which a disk is placed and rotated, and various information recorded on the disk in the form of concave and convex "1" and "0" is reproduced into electrical signals by a reading means. However, in this case, the disk rotates at a fairly high speed, so even if you want to stop it suddenly for some reason, it will not stop suddenly, and it is dangerous to touch it while it is still spinning. There is also.

The present invention attempts to solve such problems.

The illustrated embodiment will be described below.

In the illustrated player, a player main body 2 is housed in a part of a casing 1 so as to be freely drawn out. In addition,
The player body can be pulled out manually or electrically.

The casing 1 has an entrance/exit 11 at a suitable position on the front surface, and chassis 12 are installed on the left and right inside the entrance/exit.
A plurality of guide rollers 13..., 13...
are arranged.

The player body 2 is provided with longitudinal guide rails 22, 22 on both sides of the housing 21, and the guide rails are connected to the guide rollers 13..., 13...
By engaging with the housing 21, the housing 21
A door 23 that closes the entrance/exit 11 is pivoted to the front end of the
are doing.

The player main body 2 has a turntable 24 disposed on the upper surface of the front half of a housing 21, which is rotated by a motor (not shown) in the housing, and a pressure ring that presses the disk A onto the turntable. 25 to correspond,
The pressure ring is rotatably supported by an arm 26 that is pivoted 261 on the upper surface of the rear half of the housing 21, and the arm is further provided with a push-up means 26a that acts as it is pulled forward, and the pressure ring is It is equipped with a brake 27 that brakes the rotation of 25.

A ring 241 made of a magnetic material is fitted on the turntable 24, and a magnet ring 251 corresponding to the magnetic ring 241 is fitted on the lower surface of the pressure ring 25.
The disk A is held on the turntable 24 by the adsorption force between both rings.

The arm 26 is hollow to form a chamber 262 therein, and a through hole 264 is provided at the tip of the lower wall 263, and the pressure ring 25 is loosely inserted into the through hole, and a presser ring 25 is inserted into the hole edge. The upper part of the pressure ring is movably housed in a chamber 262 so that the flange 252 on the upper edge of the shear ring abuts against it.

The push-up means 26a of the arm 26 has a protruding piece 267 protruding from the base of the arm, and a stopper 268 corresponding to the protruding piece 267 is provided on the top wall of the casing 1 near the entrance/exit 11 of the casing 1. When the protruding piece 267 abuts against the stopper 268 as it is pulled out, the arm 26 is pushed up.

The brake 27 is provided with a sliding plate 271 that slides in the front-back direction in the middle part of the lower wall 263 of the arm 26,
The tip of the sliding plate is formed into an arcuate surface and a brake shoe 272 is attached thereto, and the brake shoe is made to face the flange 252 of the pressure ring 25 at an appropriate interval. Further, an upright piece 273 is provided at the rear end of the sliding plate 271, and the rear end of an operating lever 274 arranged perpendicularly to the upright piece is abutted from the front.
An upright piece 275 facing the upright piece 273 is provided at the rear end of the operation lever, a tension spring 276 is applied between the two upright pieces, and the middle part of the operation lever 274 is pivoted 277 to the lower wall 263 to allow the tip to be operated. end 27
8 is movably protruded out of the arm through a window hole 265 on the side surface of the arm 26, and a tension spring 279 is applied to the operating lever 274 in a direction to move the sliding plate 271 backward.

In front of the operating end 278 of the operating lever, when the housing 21 moves forward, the operating end 278
A stopper 280 made of a plate spring is arranged, and this is fixed to the chassis 12 inside the casing 1.

Note that FIG. 5 shows another example regarding the brake 27, and in this case, the operating lever 27
The tension spring 279 applied to the sliding plate 27
1, the operating lever 274 is made up of two bodies a and b that can be bent forward at the pivot point 277, and both a and b
A spring 281 is applied between them to maintain the straight state, and the stopper 280 is formed of a rigid body.

In FIG. 3, 211 is an arm holder.

With the above structure, when the player main body 2 is pulled out, the operating end 278 of the brake 27 hits the stopper 280, the operating lever 274 rotates against the spring 279, and the sliding plate 271 is moved via the spring 276. The brake shoe 272 is pulled forward and the brake shoe 272 hits the flange 2 of the pressure ring 25.
52, and rotation of the pressure ring 25 and hence the disk A due to inertia is stopped.

When the player body 2 is pulled out further, the brake 2
The operating end 278 of No. 7 climbs over the stopper 280,
Next, the protruding piece 267 at the base of the arm 26 abuts against the stopper 268, and this pushing-up means 2
6a works, the arm 26 is pushed up, and the pressure ring 25 is automatically pulled up.
Therefore, all you have to do is remove disk A or replace it.

Thereafter, when the player main body 2 is pushed into the casing 1, the arm 26 returns, the pressure ring 25 returns, and if the disc A is on the turntable 24, it is clamped again. Further, the operating end 278 of the brake 27 climbs over the stopper 280 and returns to its original state.

According to the present invention, the brake 27 is automatically activated as the player body 2 is pulled out, and the disk A rotating in an elliptical manner is stopped. Therefore, the player body 2 can be pulled out in a stopped state at all times, and the danger caused by rotation is avoided. Not accompanied. In addition, since the pressure ring 25 is peeled off, the brake 27 can be configured simply.
It is easy to manufacture and can be provided at low cost.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the main parts of a disc player, FIG. 2 is a perspective view of the main parts in a pulled out state, and FIG. FIG. 4 is an enlarged side view, FIG. 4 is an enlarged cross-sectional plan view of the same essential parts, and FIG. 5 is a plan view showing another example related to the brake. 1...Casing, 2...Player body, 24
... Turntable, 25 ... Pressure ring, 26 ... Arm, 27 ... Brake, A ...
disc.

Claims (1)

[Scope of utility model registration request] The player main body 2 is equipped in a casing 1 so as to be freely drawn out, and the turntable 24 of the player main body 2
A pressure ring 25, which is removably equipped to press the disk A on top, is rotatably supported by an arm 26 which is pivoted at a proper position on the player body, and is driven by the arm to pull out the player body 2. A brake mechanism for a disk player characterized by being equipped with a brake 27 for braking the rotation of the pressure ring 25.