JPS5915378Y2 - Push button operation mechanism - Google Patents

Description

[Detailed description of the invention] The present invention relates to a push button operation mechanism, and in particular, the first push operation and its automatic return operation turn on and maintain the - switching mode, and the next push operation immediately switches on the above switching mode. The mode is now turned off.
This invention relates to a centrifugal push button operation mechanism.

Conventionally, the first push-in operation and automatic return operation turns on and maintains the - switching mode, and the next push-in operation and automatic return operation turns off the above-mentioned - switching mode for the first time. Button-on and button-off push button mechanisms are widely used.

However, according to such a conventional push button mechanism, the on state of the - switching mode is obtained by the first push operation with a finger, etc., and the on state is maintained by releasing the finger, whereas the next push button The on-state of the switching mode is not immediately canceled by the operation, but the on-state is automatically canceled only when the user releases the finger and releases the push after the switch is once biased to the on-state.

For this reason, when this is used, for example, as a pause mechanism in a tape recorder or a button-on/button-off switch in other devices, there is a drawback that the switching of the operations of these mechanisms and switches is delayed.

The present invention improves these conventional drawbacks, and in particular, maintains the on state during the first push-in operation and the subsequent release of the finger, and even without removing the finger during the next push-in operation. It is an object of the present invention to provide a centrifugal push button operation mechanism that can immediately turn off the button.

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 are a plan view and a front view showing the basic structure of a push button operation mechanism according to the present invention.

Reference numeral 1 denotes a mounting board, on which guide pins 2, 3 and a locking pin 4 serving as a locking fixing member are planted, and elongated holes 5, 6, 7 are provided for guiding or escaping from these. A sliding plate 8 is slidably mounted on the mounting board 1.

Reference numerals 9 and 10 denote first and second locking pieces protruding from the left and right side edges of the sliding plate 8, and the first locking piece 9 and the guide pin 3
A first return spring 11 is stretched between the
The sliding plate 8 is always urged toward the backward movement position, which is the downward position in FIG.

Reference numeral 12 denotes a shaft mounted on the sliding plate 8, and a long hole 14 of a locked member 13 placed on the sliding plate 8 is loosely fitted into the shaft 12.

This elongated hole 14 is provided obliquely so as to rise as shown in the figure with respect to the sliding direction of the slide 8.

A locking notch 15 is provided at a portion of the locked member 13 facing the lock pin 4 on the distal end side.

Reference numeral 16 denotes a locking pin projecting on the locked member 13, and the shaft 1 is connected to the locking pin 16 and the second locking piece 10.
Both ends of the second spring 17 fitted into the second spring 17 are respectively locked, and this constantly urges the locked plate 13 to rotate clockwise.

This second spring 17 is the first return spring 11
The repulsive force is assumed to be smaller than that.

Reference numeral 18 denotes a locking protrusion having a U-shaped recess provided on the proximal end side of the locked member 13, and a guide piece 19 is provided continuously thereto.

Further, 20 is an inclined guide piece protruding from the left side of the locking protrusion 18 in FIG. The operating lever 23, which is biased counterclockwise by a third return spring 22, is attached to the supporting shaft 21 and is movable on its tip side between a forward position and a backward position. It can be freely attached to suit your needs.

A retaining pin 24 is hung from the lower surface of the operating lever 23 on the distal end thereof, and extends into the locking protrusion 18 having four U-shaped parts.

Numerals 25 and 26 are regulating pins that regulate the amount of rotation of the operating lever 23.

Next, the operation of the above mechanism will be explained.

First, the state before operating the operating lever 23 is as shown in FIGS. 1 and 2, and at this time, the locked member 13 is urged to rotate clockwise by the second spring 17, and as shown in FIG. 3. It is in the state shown.

Further, at this time, the side edge 15a on the tip side of the locked member 13 is in contact with the lock pin 4, which is a locking fixing member that locks the sliding plate 8 in the forward movement position.

Therefore, when the operating lever 23 is pushed in with a finger in the direction of arrow C in FIG. 5, the operating lever 23 rotates clockwise against the third return spring 22, and the engagement pin 24 moves to the forward movement position. do.

At this time, since the engagement pin 24 is engaged with the locking protrusion 18, the forward movement of the engagement pin 24 causes the locked member to
3 is pushed upward in the figure, but since the elongated hole 14 bored in the locked member 13 is inclined upward with respect to the forward movement direction of the locked member 13, The force applied in the forward movement direction of the locked member 13 is converted into a force that guides the elongated hole 14 in the rising direction with respect to the shaft 12 thereof.

Therefore, the locked member 13 attempts to gradually rotate clockwise in the direction of arrow C in FIG. 5 about the engagement pin 24.

That is, the locked member 13 is pushed in the upward direction by the operating lever 23 while a clockwise rotational force is applied, and finally the lock pin 4 has the locking notch 15 in the fourth position.
They will be engaged as shown in the figure.

When the operating lever 23 is pushed in to the maximum pushing position where it contacts the regulating pin 25 and released, the engagement pin 24 moves to the overstroke position, and then the third return spring 22 returns to the initial state, which is the backward movement. Return to position.

At this time, a force acts on the shaft 12 in the downward direction of the elongated hole 14, and the locked member 13 rotates counterclockwise in the direction of arrow C in FIG. 5 around the lock pin 4 in the locking notch 15. The state shown in FIG. 5 is then reached, and the button-on operation is completed.

In this case, since the second spring 17 urges the locked member 13 to rotate clockwise around the engagement pin 24, the force of the second spring 17 is greater than the force of the first return spring 11. is also set weakly.

Next, to release the above-mentioned button-on state, the algae cultivation lever 23 is pushed again against the third return spring 22.

Then, the retaining pin 24 moves forward, and as shown in FIG. Contacting the outer surface of the inclined guide piece 20, the locked member 13 rotates counterclockwise around the shaft 12 in the direction indicated by the arrow in FIG. It is released as shown in Figure 6.

Then, due to the bias of the first return spring 11, the seventh
As shown in the figure, the sliding plate 8 having the shaft 12 and the locked member 13 both move in the backward direction of arrow C in FIG.

At this time, the engagement pin 24 moves to the overstroke position, receives the force of the second spring 17, and the above-mentioned guide piece 1
9, and then moves in the backward movement direction along this while maintaining this contact state.

At this time, the second spring 17 urges the locked member 13 clockwise in the figure, so this locked member 13
As the engaging pin 24 moves in the forward direction, it dries in the direction of the arrow F in FIG. 8 as shown in FIG. Move forward to the desired position and stop.

That is, the state returns to the same state as shown in FIG.
The bush-off operation is completed.

In this way, in the push-off operation, the operating lever 23
When the slide plate 8 is moved to the overstroke position, the sliding plate 8 immediately returns to its original position at high speed, and the process in which the operating lever 23 returns after releasing the finger from the overstroke position is an idle operation.

Therefore, if this is adopted in the pause mechanism of a tape recorder, the pause mechanism can be immediately released by simply moving the control lever forward, and even when used in combination with other switches, the switching return switching operation can be speeded up. There is an advantage.

As described above, the present invention includes a sliding plate that is urged to the return position by the first return spring, and a shaft that is swingably supported on the sliding plate by engaging the elongated hole and the shaft. a second spring that rotationally biases the locked member; and a second spring that engages with the locked member and locks the sliding plate in a forward position against the first return spring. a locking fixing member, and a reciprocating operation lever that has a retaining pin that contacts the locked member and is biased by a third return spring, and engages with the engaging pin. The locked member includes a locking protrusion in which a recess is formed for moving the sliding plate to the forward position, and the locking member releases the locked state of the sliding plate via the locked member. Depending on the forward or backward movement position of the sliding plate, the engagement pin of the operating lever in the backward movement position is provided with either the locking protrusion piece or the inclined guide piece. By arranging them to face each other, it is possible to speed up the switching of various mode mechanisms and switches in a tape recorder, etc., and the handling and operation of a device using these devices becomes clear and easy.

In addition, since the configuration for obtaining such effects is relatively simple and inexpensive as described above, it will be of great benefit if put into practical use.

[Brief explanation of the drawing]

The drawing shows an embodiment of the push button operation mechanism according to the present invention,
Figure 1 is a plan view, Figure 2 is a front view, Figures 3 to 8.
The figure is a plan view showing changes in the operation of the locked portion. 4...Lock pin, 8...Sliding plate, 1
1...First return spring, 12...
・Shaft, 13...Locked member, 14...
・Long hole, 15... Locking notch, 17...
Second spring, 18... Locking protrusion piece having a recess, 20... Inclined guide piece, 22...
- Second return spring, 23...operation lever, 24...engaging pin.

Claims (1)

[Scope of utility model registration request] A sliding plate urged to the return position by a first return spring, a locked member slidably supported on the sliding plate by engagement of an elongated hole and a shaft, and a locked member. a second spring that rotationally biases the locking member; a locking fixing member that engages with the locked member and locks it in a forward position against the sliding plate and the first return spring; The locking member that engages with the engagement pin includes a reciprocating operation lever that has an engagement pin that comes into contact with the locking member and is biased by a third return spring. A locking projection piece formed with four parts for moving the sliding plate to the forward movement position, and an inclined guide piece for releasing the locked state of the sliding plate via the locked member by the locking member. The retaining pin of the operation lever in the backward movement position is provided to face either the locking protrusion piece or the inclined guide piece, depending on the forward movement or backward movement of the first cover of the sliding plate. Features a push button operation mechanism.