JPS5830302Y2 - Record player brake mechanism - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of the brake mechanism of a record player.

FIG. 1 shows an overall diagram of the base brake mechanism in a conventional record player.

1 is a Kuun table, 2 is a shaft, 3 is a support plate of a panel or cabinet, etc., 4 is a bearing attached to the support plate 3, 5 is a stop rod pivotally supported by the bearing 4, and 6 is a stop rod of the stop rod 5. Stop button fixed on top edge.

7 is a spring interposed between the stop button 6 and the bearing 4; 8 is a stopper provided at the bottom of the stop rod 5; 9 is a brake lever rotatably supported approximately in the middle by a pin 9; 10 is a bearing attached to the lower surface of the support plate 3 located near the outer periphery of the turntable 1; 11 is a brake shaft pivotally supported by the bearing 10; the lower end thereof is provided at the tip of the brake lever 9; It is inserted into the hole.

12 is a stopper provided on the brake shaft 11, and 13 is a brake pad made of felt, urethane, etc. provided on the upper end surface of the brake shaft 11.

To explain the operation in the above configuration, when the stop button 6 is moved against the spring force of the spring 7 and the stop lever 5 is lowered, the brake lever 9 is rotated counterclockwise as shown by the two-dot chain line.

Therefore, the brake shaft 11 is raised and the brake pad 13
is brought into sliding contact with the turntable 1 to stop the turntable 1.

By the way, in this structure, the depressing force of the stop button 6 acts on the turntable 1 via the brake pad 13, so if the depressing amount of the stop button 6 is large, the brake force applied to the turntable 1 will also be large. Conversely, if the amount of depression is small, the braking force will also be small.

Therefore, if the braking force is large, brake noise may be heard or the turntable 1 may knock.

Moreover, if the braking force is small, there is a drawback that the stop time of the turntable 1 becomes long.

This idea was inspired by the Imperial Prince.

The object is to provide a brake mechanism for a record player that allows the brake pad to contact the turntable with an appropriate sliding force and prevents vibrations caused by sliding noise from being directly transmitted to the support plate.

Next, an embodiment of this invention will be described with reference to FIG.

Note that the same symbols as in FIG. 1 indicate the same parts. 14 is bearing 1
A spring interposed between the brake shaft 11 and the brake shaft 11 acts to constantly push the brake shaft 11 upward.

Reference numeral 15 is an elastic material such as rubber fitted to the stepped portion of the bearing 10.

This elastic body 15 is attached to the support plate 3 via a mounting plate 16.

There is an appropriate amount of play between the brake shaft 11 and the brake lever 9, and after the brake lever 9 rotates, the brake shaft 11 is moved around the turntable 1 by the spring force of the spring 14.
It is designed to be pressed against the

In the figure, the brake butt 13 is the brake shaft 110.
Although the brake pad 13 is attached directly to the head, it may also be attached via an elastic material.

The spring 14 is weaker than the spring force of the spring 7 shown in FIG. It is supposed to be done.

Next, the operation will be explained based on the structure of the above embodiment. When the stop button 6 is pressed and the brake lever 9 is rotated, the brake shaft 11 is pushed up and the brake shaft 11 is rotated.
Since it is loosely fitted to the brake lever 9, the brake pad 13 is pressed against the lower surface of the turntable 1 by the spring force of the spring 14.

Therefore, the turntable 1 is stopped, but at this time, the vibrations and sliding noise generated by the friction between the brake pad 13 and the turntable 1 are absorbed by the elastic material 15.

This prevents vibrations and vibration sounds from being directly transmitted to the support plate 3, resulting in a quiet stop.

And after turntable 1 stops. By releasing your hand from the stop button 6, the original state is restored.

In this embodiment, the upper surface of the brake pad 13 is inclined so that the front end side of the brake pad 13 in the direction of rotation comes into contact with the turntable 1 at an appropriate angle, so that the sliding noise is reduced.

As mentioned above, this idea is based on the fact that a ring-shaped elastic body is attached to a mounting plate fixed to a support plate, and a bearing is fitted to this elastic body to reduce the vibration generated between the turntable and the brake pad. By absorbing sliding noise with elastic material and preventing it from being transmitted to support plates such as panels and cabinets, the turntable can be stopped quietly and no knocking will occur.In addition, the elastic material is ring-shaped. Since the bearing is fitted into this, the structure is simple, easy to manufacture, and can be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is an overall view showing a conventional brake mechanism for a record player, and FIG. 2 is a sectional view of essential parts showing an embodiment of the brake mechanism for a record player according to this invention. 1... Turntable, 3... Support plate, 10... Brake bearing, 11... Brake shaft, 13... Brake pad, 15 ...
...Elastic material.

Claims (1)

[Scope of utility model registration request] A turntable, a support plate supporting the turntable, a mounting plate fixed to the support plate, a ring-shaped elastic material fitted into a hole formed in the mounting plate, and a ring-shaped elastic material fitted into the elastic material. It consists of a bearing mounted on the shaft, a brake shaft slidably supported on the bearing, and a brake pad attached to the head of the brake shaft, and by pushing up the brake shaft, the brake pad or the turntable is A brake mechanism for a record player that comes into sliding contact and stops and removes the turntable.