JPS6117552Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a push piece priority operation determining device, and more specifically, it
It is devised so that other push pieces cannot be pushed.

Traditionally, this type of device has used a complicated hook mechanism or ratchet mechanism, but all of these have drawbacks such as being complicated, taking up space, being expensive, and being prone to malfunctions. It was hot.

This invention was made to eliminate these drawbacks, and its features include first and second push pieces that move from the non-operating position to the operating position, and the non-operating movement of these push pieces. It consists of a first and a second rotating piece that rotates when moving from the position to the operating position, and when the first and second push pieces are both in the non-operating position, the first rotating piece rotates. A movable piece locks the rotation of the second rotary piece, and the rotation of the first rotary piece due to the movement of the first push piece causes the second rotary piece to rotate. That is, it is in a new push piece priority operation determination position where the second push piece can be operated and the operation of the first push piece is always prioritized.

This will now be explained in detail with reference to the illustrated embodiment.

In Figures 1 to 3, 1 and 2 are first and second rotating pieces, respectively, and these rotating pieces are arranged side by side on a fixed plate (not shown) so as to be rotatable about pivots (fulcrums) 1A and 2A. However, as shown in FIG. 1, these rotating pieces 1 and 2 are
The rotating tips 1B and 2B of 2 and 2 are arranged in parallel in a state where 1B is in the movement locus of 2B and 2B is in a position outside of the movement locus of 1B, in close proximity to each other.

Also, the first rotating piece 1 of each rotating piece 1 and 2
The first pushing piece 3 is attached to the front edge 1C passing through the pivot 1A from the tip 1B, and the rotating piece 2 is attached to the tip 2B.
A second push piece 4 is disposed on the front edge 2C between the front edge and the pivot 2A.

Since this invention has the above-described configuration, the rotating tips 1B and 2 of each rotating piece 1 and 2 shown in FIG.
In the close state of B, even if an attempt is made to push the second pusher piece 4, the tip 2B of the second rotating piece 2 will not touch the first rotating piece tip 1.
In this case, the second rotating piece 2 cannot be rotated, so in the state shown in FIG. Piece 4 cannot be pushed.

In addition, in the state shown in FIG. 1, when the first pusher piece 3 is pushed, the first rotating piece 1 pivots about its pivot 1A in the direction of escaping from the close state as shown in FIG. Therefore, in the case of FIG. 1, the first push piece 3 can be pressed, but as mentioned above, the second push piece 4
cannot be pressed.

Next, the first push piece 3 shown in FIG.
When the rotating pieces 1 are rotating as shown in the figure, that is, each rotating piece 1 and its tips 1B, 2B
When the above-mentioned close state is released, the second rotating piece 2 is naturally rotated as shown in FIG. 3 by the pressure of the second pressing piece 4. 2 push pieces 4 can be pushed.

In addition, as mentioned above, the rotating piece 1 moves in the direction of escaping from the close state, and the rotating piece 2 moves in the direction of colliding with each other. They may be operated at the same time.

As described above, this invention has the following features: first and second push pieces that move from a non-operating position to an operating position, and first and second pivot pieces that rotate respectively due to the movement of these push pieces. It consists of a piece,
When the first and second push pieces are both in the non-operating position, the first rotation piece locks the rotation of the second rotation piece, and the movement of the first push piece stops the rotation of the second rotation piece. The rotation of the first rotation piece enables the rotation of the second rotation piece, that is, the operation of the second push piece, and the operation of the first push piece is always prioritized. For example, the second push piece can be used to enter the recording mode only after the first push piece has been used to perform a play operation, and this makes it possible to perform tape rewinding or forward fast forwarding. This has the effect of preventing the accident of rapid tape erasing.

[Brief explanation of the drawing]

The drawings all show embodiments of this invention; FIG. 1 is a plan view of the essential parts of the invention, and FIGS. 2 and 3 are plan views that are different from FIG. 1. 1...First rotating piece, 2...Second rotating piece, 3
...First push piece, 4...Second push piece, 1A, 2A
...Pivot (fulcrum), 1B, 2B... Rotating tip.

Claims (1)

[Scope of utility model registration request] first and second push pieces that move from the non-operating position to the operating position, and first and second push pieces that are rotated by the movement of these push pieces from the non-operating position to the operating position, respectively.
and a second rotating piece, the first and second rotating pieces are arranged such that the rotating trajectories of the engaging portions formed at the free ends intersect with each other, and both of the pushing pieces are in the non-operating position. , a part of the first rotating piece is placed close to the second rotating piece so as to be on the rotational locus, and both the first and second pushing pieces are in the non-position position. When in the operating position, the second rotating piece collides with the first rotating piece and is prevented from rotating, making it impossible for the second pushing piece to move; When the first rotary piece is moved to the operating position, the first rotary piece rotates out of the rotation locus of the second rotary piece, so that the second rotary piece becomes rotatable. A push piece priority operation determining device configured to enable operation of a second push piece.