JPS5838496Y2 - Push lock device for push switch attached to lever - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bush lock device for a bush switch mounted on a lever.

A conventional bushing locking device for a bushing switch, for example, as shown in FIGS. 1 and 2, has a bar-shaped cam 2 bored in the movable platen 1 of the bushing switch, and a pin 4 in the switch case 3. It is supported to be able to swing vertically and horizontally, and the pin 4
The lower end of the cam 2 slides from the A position to the B position of the cam 2 as the movable platen 1 moves as a bushing, and is engaged with the B position to lock the bushing state of the movable platen 1.

The pin 4 is removed from the B position of the cam 2 by the re-buttoning movement of the movable platen 1, and then slides back from the B position to the A position of the cam 2 when the re-buttoning operation of the movable platen is released several times.
The movable platen 1 is moved to its original state by the elastic restoring force of the spring 5.

Incidentally, the switch case 3 is equipped with a switch mechanism (not shown) that performs switching by repeated push movements of the movable platen 1.

In the above-mentioned conventional bush locking device, the pin 4 swings in a complicated manner vertically and horizontally, so when the bushing locking device is used for a bushing switch attached to a lever that is easily affected by vibrations. However, there is a risk that a smooth locking action may not be achieved.

In addition, it is difficult to install it inside the lever because of the large space required, so it is not possible to construct a small and suitable button locking device for a button switch that is installed in the lever. There wasn't.

The present invention solves the above-mentioned conventional drawbacks and provides a suitable button locking device for a button switch mounted on a lever.A preferred embodiment of the present invention is shown in Figs. This will be explained in detail based on FIG.

First, one embodiment of the present invention will be described based on FIGS. 3, 4, and 5.

6 is a lever.

The lever is composed of, for example, a hollow round bar, and the tip side thereof forms a groove 6a having a predetermined groove width in the diametrical direction.

7 is a lock cam.

The lock cam 7 is a substantially rectangular flat plate with a thickness that allows it to move within the width of the groove 6a of the lever 6, and has a hook-shaped stopper 7a on the side surface of one end, for example, as shown in FIG.
A shaft hole is formed in the central part of the lever 6 so as to be swingably supported by a shaft 18 inserted in a direction perpendicular to the groove 6a at the tip of the lever 6.

A torsion spring 8 rotates the lock cam 7 supported by the shaft 18 in the direction in which the stopper 7a of the lock cam 7 is formed, and causes the shaft 1 to protrude outward from the groove 6a of the lever 6.
8--Thus, one end of the torsion spring 8 is inserted through the
The other end of the lock cam 7 is engaged with a concave groove 6b on the end surface of the lever 6 to bias it.

9 is a ring. The ring 9 is loosely engaged at its outer periphery with a gap a forming a predetermined push stroke in an opening 10C opened at the other end of the large diameter portion of the push button 10, and is engaged with the lever 6 at its outer periphery. To the end of the lever 6 is the push button 10
A mounting hole 9a is formed in the center, into which the mounting hole 9a is inserted with sliding resistance so as to be swung by a predetermined pressure.

10 is a push button. The push button 10 has a generally cylindrical shape with a small diameter portion on the tip side, a stepped portion 10b in the middle portion, and a large diameter portion on the other side, and an opening 10C on the end face of the large diameter portion. Further, a shaft hole 10d is drilled on the small diameter portion side, into which the tip of the lever 6 is fitted so as to be able to move forward and backward with a predetermined stroke.

Furthermore, a stopper 7a of the lock cam 7 is fitted into a predetermined position on the circumference of the small diameter portion, and a hole 10a is formed so as to face the groove 6a of the lever 6 in order to lock the push button 10 in a predetermined position. It is bored in communication with the shaft hole 10d.

Furthermore, the ring 9 is located at a predetermined position on the periphery of the large diameter portion.
The hole 10e is connected to the opening 1 so that the lever 6 is loosely engaged within a predetermined bushing stroke in the axial direction of the lever 6.
It is drilled in communication with 0C.

Furthermore, a connecting plate 17 is fixed to the end face of the opening of the large diameter portion, and the operating rod 11 is connected via the connecting plate 17. ) allows for opening and closing operations.

Reference numeral 11 denotes an operating rod, which is made of, for example, a steel wire rod of a predetermined thickness, one end of which is locked to a connecting plate 17 fixed to the push button 10, and the other end of which is engaged with a button switch. .

12 is a lever.

The cover 12 is fixed at a predetermined position on the tip of the lever 6, and causes the small diameter portion of the push button 10 to protrude outward from the tip, while holding the large diameter portion inside.

Thus, the cover 12 has an opening 12a formed on the front end side thereof, and a mounting hole 1 which communicates with the lever 6 and fits into the lever 6.
2b, and after inserting the push button 10 into the end face of the opening 12a, only the small-diameter portion protrudes, and the large-diameter step portion 10b is inserted into the end surface of the opening 12a.
A restraining plate 12C is fixed to hold the plate.

13 is a spring.

The spring 13 is for urging the push button 10 to return to a predetermined new 1 helix position N against the push button 10. For example, as shown in FIG. The bullet is loaded between the bottom surface and the end surface side of the large diameter portion of the push button 10.

17 is a connecting plate.

The connecting plate 17 is fixed to the end surface of the large-diameter side of the push button 10, and is engaged with the groove 6a of the lever 6 to prevent the push button 10 from being rotated.The connecting plate 17 has a button in the center for opening and closing a button switch. One of the operating rods 11 is locked.

Next, the operation will be explained.

FIG. 3 shows the state when the push button 10 is not operated, and the lock cam 7 is biased by the torsion spring 8 so that the stopper 7a of the lock cam 7 is pushed into the shaft hole 1 of the push button 10.
It is pressed against the inner peripheral surface of 0d.

Now, if the push button 10 is operated from the neutral position N, the result will be as shown in FIG.

That is, when the push button 10 is pushed by a stroke a1 in the direction of the arrow, the push button 10 slides and the push button 11 is operated via the operating rod 11.

Here, the stroke a1 is approximately equal to the gap a, and a1≧a.

At this time, since the hole 10a of the push button 10 moves to a position facing the stopper 7a of the lock cam 7, the torsion spring 8
The stopper 7a is swung by the force of the stopper 7a, and the stopper 7a is fitted into the hole 10a at the position shown in FIG.

At the same time, a portion of the other end of the lock cam 7 is inserted into the groove 6 of the lever 6.
It is projected outside the outer periphery of a.

For this reason, a change occurs in which the operating force of the push button 10 is increased, which can be perceived as a click feeling.

When the push button 10 is released, the lock cam 7 is locked to the push button 10 by the torsion spring 8 more strongly than the push button 10 is pressed by the spring 13, so the push button 10 is locked at the position where the button is operated. The state shown in FIG. 4 is reached, and the operating state of the bushing switch is maintained.

Next, when the push button 10 is operated again, the result becomes as shown in FIG.

That is, when the push button 10 is pressed again from the position in the arrow direction to the position U, the ring 9 is pressed by the push button 10.
slide together, and the end surface of the inner circumferential surface of the ring 9 presses the other end of the lock cam 7, so that the lock cam 7 is swung back to its original position against the bias of the torsion spring 8 and restored. , the stopper 7a is disengaged from the hole 10a of the push button 10 and is pressed against the inner peripheral surface of the shaft hole 10d of the push button 10.

Further, the other end side is brought into contact with the inner circumferential surface of the ring 9.

That is, the state shown in FIG. 5 is reached. When the user releases the push button 10, the push button 10 is returned to its original position N as shown in FIG. 3 by the pressure of the spring 13.

That is, in the process of the push button 10 moving from the state shown in FIG. 5 to the state shown in FIG. Since the ring 9 is not pressed by the push button 10 and the ring 9 is held in the position shown in FIG. 5, the lock cam 7 is held in the position shown in FIG. Since the other end side is held in contact with the inner circumferential surface of the ring 9, the stopper 7a is not inserted into the hole 10a but passes through.

In this way, the push button 10 is locked when the button is operated from the neutral position N to the position of the predetermined button stroke a1, and returned to the original neutral position N when the button is operated again.
This is a bushing locking mechanism that opens and closes the bushing switch.

The present invention has the above-mentioned configuration 9 and has the following effects.

That is, a lock cam biased in one direction is swingably installed inside the lever, and a ring and a push button are slidably inserted into the lever, so that the lock cam swings only when the button of the push button is operated. When the push button is returned to its original position, the ring suppresses the rocking of the lock cam to prevent the lock cam from locking the push button, so it can be attached to an extremely small and simple lever. It is possible to provide a bush locking device for a bush switch.

For example, the present invention can be applied to a wiper washer that is attached to the operating lever of an automobile turn signal switch.
The present invention can be applied not only as a bushing locking device for a bushing switch for various automobile electrical devices, but also as a bushing locking device for a bushing switch attached to various levers.

[Brief explanation of drawings]

FIG. 1 shows a conventional bushing locking device for a bushing switch, and FIG. 2 is an explanatory diagram of a main part of the bushing locking device shown in FIG. Fig. 3 is an explanatory diagram of the push button of the bush lock device according to the first embodiment of the present invention when the push button is not pressed; Fig. 4 is an explanatory diagram of the locked state of the push button of the bush lock device of Fig. 3;
This figure is an explanatory view of the push button of the bush locking device shown in FIG. 3 when it is unlocked. 6...Lever, 7...Lock cam, 7
a...stopper, 7b...elastic piece,
7C...Protrusion, 8...Spring, 9...
...Ring, 10...Push button, 10 a...
...hole, 11...operation rod, 12...
Cover, 13...Spring, 17...
・Communication board.

Claims (1)

[Scope of utility model registration request] In a push-button bush locking device that is attached to the tip of a lever and opens and closes a bushing switch, there is a hollow lever with a groove formed at a predetermined depth in the diametrical direction at the tip, and a hollow lever that is grooved at a predetermined depth in the diametrical direction at the tip, and a hole inside the tip of the lever. A lock cam is formed with a hook-shaped stopper on one end, is swingably supported by the lever, and is biased in a predetermined direction, and is engaged and locked with the stopper of the lock cam with a predetermined bushing stroke. a push button that is slidably inserted into the outer periphery of the lever with a predetermined pressure in order to release the lock of the push button by colliding with the other end of the lock cam, and a push button that is engaged with the push button by a predetermined push stroke; A bushing locking device for a bushing switch, comprising a ring that is engaged in a loosely fitted state.