JPS594406Y2 - switch - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a slide type switch equipped with a lock button.

In such a switch, the lock button is resiliently biased by a lock spring in the direction of engagement with the lock hole on the side, and the lock button automatically engages with the lock hole and locks by operating the switch handle. If you do this, you will need a member to attach the lock spring, but for relatively small switches, you may need to use other members in addition to the switch handle, lock button, and lock spring. When installing a lock spring, the workability during assembly is significantly reduced, causing problems in terms of productivity and cost.In addition, the direction of the spring biasing force of the lock spring is fixed, resulting in poor locking action. There is a problem with stability.

The present invention was devised in view of these points, and its purpose is to make it easy to assemble the lock button to the switch handle, and to eliminate the need for other parts for attaching the lock spring. To provide a switch that can reliably perform an automatic locking action.

The present invention will be described in detail below based on illustrated embodiments.

In the figure, reference numeral 9 denotes a switch base, on which terminal fittings 19 and 19 are fixed to mounting holes 23 at intervals, and protrusions 20 are formed on a pair of opposing inner wall surfaces.

The rectangular switch handle 4 is slidable in one direction with respect to the switch base 9, and the tip of the boss 14 protruding from the lower surface is inserted into the hole provided in the plate-shaped switch spring 8. By inserting and fixing into 18, the switch spring 8 is attached to the lower surface.

In addition, a plurality of legs 15.15 are suspended from both sides of the end of the switch handle 4, and are connected to the elongated holes 2 of the switch base 9.
1 in a slidable manner, and furthermore, by engaging the tips of a pair of elastic protrusions 16 extending from both side edges of the switch handle 4 with the protrusions 20 of the switch base 9. A click feeling is given to the sliding operation of the switch handle 4.

A substantially square hole 5 provided in the center of the switch handle 4
is for mounting the lock nail 1, and has a substantially U-shaped surrounding wall 17 with an open side surface in one direction orthogonal to the sliding direction of the switch handle 4 around the upper surface.

On the other hand, the lock button 1 has a pair of hanging pieces 2, 2 hanging opposite each other, each hanging piece 2 has a claw part 3 at the lower end, and the rain hanging piece 2.2 is pushed into the hole part 5. The lock button 1 is attached to the switch handle 4 by locking the claw portion 3 to the bottom edge of the hole portion 5, and the step portion 2 formed on the inner periphery of the surrounding wall 17 is attached to the switch handle 4.
The lower surface of the button 1 locks the upper part of the hole 5, and the claw part 3
Since the upper surfaces are in sliding contact with each other, the lock button 1 is slidable relative to the switch handle 4 in a direction perpendicular to the sliding direction of the switch handle 4.

Reference numeral 6 shown in FIGS. 3 and 4 is a spring receiver provided integrally on the side of the hole 5 on the lower surface of the switch handle 1, and between this spring receiver 6 and both claws 3, 3 of the lock button 1. A lock spring 7 disposed in the lock spring 7 resiliently biases the lock button 1 in the direction of protruding from the opening of the surrounding wall 17.

Since the switch spring 8 is located below the lock spring 7, the switch spring 8 prevents the lock spring 7 from falling off.

During assembly, the lock button 1 and lock spring 7 are assembled into the switch handle 4, and the switch spring 8 is attached to form a movable block A, which is then attached to a switch base 9 to form a switch body B.

The switch body B is then attached to the housing C of a device such as an electric shaver, and the surrounding wall 17 of the switch handle 4 and the lock button 1 are inserted into the housing C as shown in FIGS. 5 and 6. In addition, an elongated hole 11 is provided to allow the switch handle 4 to slide freely.
The lock button 1 is pressed by a lock spring 7 on one side edge of the lock button 1.
A lock hole 10 is provided in which the lock hole 10 is engaged.

5 and 7 show a state in which the switch spring 8 is not in contact with the terminal fitting 19 and is in the OFF state. At this time, the lock button 1 engages with the lock hole 10 and the switch handle 4 slides. Preventing operation.

To turn it on, slide the lock button 1 left and right against the lock spring 7 to remove it from the lock hole 10. In this state, slide the handle 4 up and down as shown in Figures 6 and 8. In this way, the switch spring 8 short-circuits the pair of terminal fittings 19 and 19.

When the switch handle 4 is returned to the off position, the lock button 1 is automatically reattached to the lock hole 10 by the lock spring 7 and locked.

This reliably prevents careless on-manufacturing.

As described above, in the present invention, the lock button can be attached to the switch handle by simply inserting the hanging piece of the lock button into the hole of the switch handle, and the lock button can be attached to the switch handle by the claw at the tip of the hanging piece. The lock spring for elastically biasing the lock button is held between a spring holder provided on the switch handle, and the lock spring does not require any other parts to attach. Since the lock spring directly biases the sliding engagement part against the switch handle, the lock spring can reliably perform the automatic locking action even if the spring force is weak, reducing the operating force for unlocking and automatically This makes it possible to achieve both reliability of locking action.

Furthermore, since a flat switch spring is located below the lock spring, the lock spring is prevented from falling off.
Although the lock spring was installed using the spring holder on the switch handle and the claw on the lock button,
It has the advantage that the lock spring does not fall off and is easy to assemble.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the present invention - an embodiment, Fig. 2 is a bottom view of the switch handle, lock button, and lock spring, Fig. 3 is a sectional view taken along the line X--X in Fig. 2, and Fig. 4 is Y- in Figure 2
A Y-line sectional view, FIGS. 5 and 6 are broken plan views of the same as above, and FIGS. 7 and 8 are sectional views of the same as above, 1 is a lock button, 2 is a hanging piece, 3 is a claw part, 4 is a switch handle, 5 is a hole, 6 is a spring receiver, 7 is a lock spring, 8 is a switch spring, 9 is a switch base, and 10 is a lock hole.

Claims (1)

[Scope of utility model registration request] In a slide-type switch, a flat switch spring that comes into contact with and separates from a terminal fitting fixed to the switch base is attached to the lower center surface of the switch handle, which is attached to the switch base so as to be able to slide in one direction. Insert the opposing hanging piece that hangs down from the lock button into the hole provided in the center of the switch handle, and lock the claw at the tip of the hanging piece to the rim of the hole, and connect the lock button to the surface of the switch base. It is slidable in the same plane and in a direction perpendicular to the sliding direction of the switch handle, and is arranged above the switch spring between the spring receiver provided on the side of the hole in the switch handle and the claw of the lock button. A switch in which a lock button is elastically biased by a lock spring in the direction of engagement with a lock hole, which is one of the sliding directions of the lock button.