JPS5818351Y2 - Support mechanism for rolling crank in push-button tuner - Google Patents

Description

[Detailed Description of the Invention] The present invention has been made with the aim of solving problems that occur when a transfer crank of a push-button type tuner is assembled into a device frame.

Conventionally, as shown in FIG. 1, a V-shaped through hole 2 is bored on both sides of a picture frame 1 of a push-button tuner so that the tip of the V-shaped part faces in the pressing direction of a push-button piece 3. Due to the suppression of the push button piece 3, the tuning frequency regulating plate 4 provided on the push button piece 3 collides with the parallel rod 8, and the shaft rod 6 of the transfer crank 5, which rotates at a certain angle, hits the through hole 2 with a bullet. It was installed by 1.

8 is the parallel rod of the transfer crank, and 9 and 9' are the drawing portions of the bullet I.

Note that 10 is the top plate of the picture frame, and 11 is a sliding groove for the pointer device.

By the way, this bullet 7 must be able to more reliably and stably press against the through hole 2 of the shaft rod 6 so that it does not float up when the transfer crank rotates.

However, during the process of hooking and passing the bullet 7, the bullet 7 may be bent excessively against the hook 9 or 9' and may become damaged, resulting in so-called sagging in the bullet 7. There were times when they lost their repressive power.

The present invention relates to a mechanism for disposing of bullets without causing fatigue.

The structure of the present invention will be explained based on FIG. 2 which shows an embodiment of the invention. Reference numeral 12 denotes a piece of cinnamon provided at the bent part of the top plate 10 which is separate from the side plate and is added to the side plate 1.

To attach the bullet to the side plate of the top plate, first slide the bullet 1 over the hook part 9' and the shaft rod 6 as shown by the dotted line in Figure 2, and then attach the other end of the bullet to the top plate. It is hooked onto the Katsura piece 12 and moved in the direction of the arrow to fix the top plate in a predetermined fixed position.

With this structure, it is not necessary to excessively bend the bullet 7 that presses the shaft rod 6 of the transfer crank 5 into the through hole 2 as in the conventional method, and it is possible to prevent the rod from becoming sagging, making it stable and reliable. This makes it possible to add more.

[Brief explanation of drawings]

FIG. 1 shows how a transfer crank is installed in a conventional push-button tuner, and FIG. 2 is a side view showing the main parts of the present invention. In the figure, 1 is a side plate, 2 is a through hole, 5 is a rolling crank, 7 is a bullet, and 10 is a top plate (other members).

Claims (1)

[Scope of utility model registration request] One end of the bullet that brings the shaft rod 6 of the transfer crank into elastic contact with the through hole in the side plate of the picture frame is locked to the side plate, and the other end is connected to the side plate.
A support mechanism for a transfer crank for a push button type tuner, characterized in that it is locked to another member of a picture frame provided on an A1 body.