JPS5826431Y2 - slide switch - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a slide switch.

Conventionally, in multi-contact slide switches that change various modes, such as from a clock switch to a timer switch or a stopwatch switch, there is a dustproof plate on the inside of the hole for the switch knob provided in the case that moves with the switch knob. The body is stretched out.

The length of this dustproof plate was approximately twice the length of the hole because it needed to be long enough to cover the hole even when the knobs were located at both ends of the hole.

Since the length of the dustproof plate is quite long, it requires a long space for movement, and the length of each hole is set on the back of the case on both sides of the hole so as not to interfere with the movement of the dustproof plate. A large space for moving the dustproof plate must be provided.

Therefore, various mechanisms such as other switches cannot be incorporated around the hole for the slide switch.

Therefore, an object of the present invention is to provide a slide switch which can incorporate various mechanisms around the hole for the slide switch and is space efficient.

The feature of this invention is that a flexible dust-proof band is attached to the slide switch knob with a length sufficient to seal the hole for the switch knob, and the dust-proof band is wrapped around the hole. It is located in a place with a holding hole for storing the contents.

One embodiment will be described below with reference to the drawings.

A hole 2 for a switch knob is bored in the case 1, and a slide switch knob 3 is movable within this hole.

The upper end of the switch knob 3 protrudes from the hole 2 to the upper surface of the case 1, and a contact piece 4 is fixed to the lower surface thereof.

The lower end of the contact piece 4 is capable of sliding on the upper surface of the circuit board 5,
It can be selectively brought into contact with and separated from a plurality of (six in the drawings) electrode portions 6a, 6b, 6C, 6d, 6e, and 6f mounted on this substrate.

Further, inside the case 1, in the vicinity of both sides of the hole portion 2, holding holes 7 and 8 are respectively formed in a direction perpendicular to the moving direction of the switch knob 3 (perpendicular to the plane of the paper).

Each holding hole 7, 8 has a guide surface 7a, B with an arcuate inner surface.
It has a.

Guide grooves 9 and 1 are provided in the tangential direction above the holding holes 7 and 8.
0 is formed, and the holding hole is connected to hole part 2 by this guide groove.
It communicates with

Furthermore, a dustproof band 11 is stretched on the inner surface of the hole 2 to seal it.

The dustproof band 11 is a flexible band made of a plastic band plate or the like.

Both ends of the dustproof band 11 are held so as to be rolled into the holding hole 7.8 through guide grooves 9 and 10, and are wound along the holding hole guide surfaces 7a and 8a as the switch knob 3 moves. It is something.

Therefore, the space required on both sides of the hole 2 for the movement of the dustproof belt 11 is only the very small range L2 required for wrapping the belt, and even when combined with the length of the hole, the space required as a whole is It is L1 and requires extremely little space.

Next, the operation of the present invention will be explained.

When the switch knob 3 is moved in the direction of the arrow from the position shown by the solid line located at the left end of the hole 2, the contact piece 4 slides on the circuit board 5 and connects to any electrode part of the electrode parts 6a to 6f. The switch is switched when it comes into contact with the

At the same time, the dustproof belt 11 also moves to the right, so that its right end is inserted into the guide surface 8a in one of the holding holes 8, as shown by the chain line.
It gets caught up along the way.

Naturally, the left end portion of the dustproof band 11 is unwound within the holding hole 7.

As explained above, according to the present invention, both ends of the dust-proof strip can be rolled into the holding hole, so less space is required for the dust-proof strip, and therefore, it is possible to close the dust-proof strip near the hole for the switch knob. Mechanisms such as other switches can be incorporated into the device, space efficiency can be improved, and the entire device can be made more compact.

[Brief explanation of the drawing]

The drawing is a sectional view showing an embodiment of the present invention. 1...Case, 2...Switch knob hole, 3...Slide switch knob, 7,
8... Holding hole, 7a, 8a... Guide surface, 11... Dust-proof belt.

Claims (1)

[Scope of Claim for Utility Model Registration] A case, a hole for a switch knob drilled in the case, a slide switch knob movably provided in the hole, and at least the above-mentioned hole that is movable together with the slide switch knob. a flexible dust-proof band having a length to seal the area; and an arc-shaped flexible dust-proof band provided near both sides of the hole so as to communicate with the hole, and for storing the flexible dust-proof band around the hole. A slide switch equipped with a holding hole with a guide groove formed on the inner surface, and.