JPH07114855A - Slide switch - Google Patents

Abstract

PURPOSE:To provide one step connection by integrally forming a fixed contact and plug contact into squared shape with one side open positioned and fixed by a base unit protruding groove, and protecting the plug contact by a cover. CONSTITUTION:When a knob 4 of a slider 5 moves along a groove 3 of an insulating base unit 1, a moving contact 7 of the slider 5 comes into contact with one fixed contact 8 brought into contact with an insulating plate 9 provided with a fixed contact burying groove 9b. This contact 8 is integrally formed respectively with a plug part 8b into a squared shape with one side open and surely fixedly positioned by a protruding groove 1a of the base unit 1. A cover 10 is provided in the plate 9, to protect the plug part 8b, and one touch connection can be performed to a power supply, grounding point, etc., by the plug part 8b and a jack.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a fixed contact piece of a slide switch which can be used for a vehicle interior light and the like and its external connection means.

[0002]

2. Description of the Related Art As a slide switch of this type, there is a slide switch disclosed in, for example, Japanese Utility Model Laid-Open No. 3-8833.
In this conventional technology, in a slide switch having a movable contact piece on a sliding body, an insulating base body having a substantially U-shaped cross section, a long hole connected to a recess of the insulating base body, and a knob 4 from the long hole to the outside are provided. An insulative sliding body provided so as to project so as to be movable in the recess of the insulating base body, a locking hole (recess) communicating with a pair of holes cut in the lower part of the sliding body, and this locking A movable contact piece having a substantially U-shaped cross section having a locking portion inserted and locked in the hole (recess) through the hole, and an elastic spring which is interposed between the upper surface of the movable contact piece and the sliding body. And an insulating plate for disposing a plurality of fixed contact pieces slidingly contacting the movable contact piece under the insulating base body.

[0003]

In the above-mentioned conventional technique, the bus bar, which is a fixed contact piece for the power source and other circuit parts, must be directly wired on the insulator.
The application place is greatly limited, and the accidental contact with other members occurs due to the pulling out part of the fixed contact piece, and the exposed part of the fixed contact piece is firmly supported while maintaining the insulation state. There are many problems that it is necessary to prevent short-circuiting accidents, which is troublesome and costly.

In order to eliminate the above-mentioned problems, the present invention enables one-touch connection between the power line and the load by a slide switch operation via a plug-in jack, and the plug is integrally formed on an insulating plate which is a switch lid. The purpose is to securely support the plug base while protecting it with the plug cover.

[0005]

SUMMARY OF THE INVENTION The above-mentioned object of the present invention is provided with a slider movably provided in the recess of the insulating base by projecting a knob from an elongated hole connected to the recess of the insulating base to the outside. In forming a slide switch in which a plurality of fixed contact pieces slidingly contacting a movable contact piece elastically provided through an elastic spring through the elastic body are arranged below the sliding body, and the outer surface of which is covered with an insulating plate, At least one of the fixed contact pieces is bent into a U-shape, the rising support piece is supported by the projecting piece groove of the base body, and the plug portion at the tip thereof is integrally formed with the insulating plate. It was achieved by protecting with a plug cover.

[0006]

[Operation] The fixed contact piece and the plug piece are positioned by inserting the rising support pieces into the groove of the base body projection piece, and the fixed contact piece is the inner surface groove of the base plate or the insulating plate that is the switch lid or the base body. The upper edge groove of the recess can be positioned, and the plug piece can be protected by the plug cover.

Therefore, the fixed contact piece does not indiscriminately move due to a disturbance such as sliding friction caused by the movable contact piece, and the plug piece does not stick to the insertion and removal of the separately provided multi-jack.

[0008] For example, one plug piece is connected to the power source positive pole, and the other plug piece is connected to the power source negative pole through a door switch and a load such as a lamp in series.
By moving the sliding body and controlling the conduction between the fixed contact pieces by the movable contact pieces, for example, the in-vehicle lamp can be manually turned off or turned on when the door is opened.

[0009]

EXAMPLES Examples will be described with reference to the drawings. First, as shown in FIG. 1, the basic structure of the present invention is such that a knob 4 is projected to the outside from a long hole 3 connected to a recess 2 of an insulating substrate 1 formed of plastic into a hollow rectangular parallelepiped shape as shown in FIG. A slide body 5 made of plastic or the like is movably provided in the recess 2 of the insulating base 1. And this sliding body 5
As shown in FIG. 2, a pair of temporary fixing legs 7a are elastically mounted in the recess 5a opened on the outer surface of the elastic member 6 through an elastic spring 6 such as a coil spring.
And a movable contact piece 7 having.

Further, a plurality of metal strip fixed contact pieces 8, 8 slidingly contacting the outer surface of the movable contact piece 7 are formed on the upper edge of the insulating base recess 2 through a positioning groove 2a and a pin 2b, as shown in FIG. As shown in FIGS. 3 and 5, the slide switch can be constructed by arranging them in parallel as described above, and covering the outer surface of the base plate 1 with the insulating plate 9 screwed in the screw holes n as shown in FIGS.

In the present invention, as shown in FIG. 1, the fixed contact pieces 8 and 8 or at least one of the fixed contact pieces 8 is bent in a U-shape upward in advance. Then, as shown in FIG. 3 and FIG.
A plug cover which is inserted and supported in a T-shaped projecting piece groove 1a vertically formed in the projecting piece 1A of 1, and the periphery of a plug portion 8b at the tip thereof is integrally formed with a hole 9a penetrating the insulating plate 9.
The slide switch according to the present invention can be constructed by covering and protecting with 10 as shown in FIGS.

Further, each fixed contact piece 8, 8 has an inner surface groove 9 of the insulating plate 9.
The position of the insulating plate 9 is regulated within b, and the fixing means for fixing the insulating plate 9 to the base body 1 is to hook the hook-shaped bullet piece 9c shown by the one-dot chain line in FIG. It can be fixed by any known fixing means such as fixing.

In order to hide the entire outer surfaces of the fixed contact pieces 8 and 8 with the insulating plate 9, as shown in FIG. 6 and FIG.
A protruding portion 1c is provided on the side of, and the U-shaped rising portion of the extended portion of the rear portion of the fixed contact piece 8 is placed on this portion,
As shown in FIG. 7, by covering the fixing contact piece 8 with a slightly wider insulating plate 9, the plug portion 8b can be covered and protected by the plug cover 10, and the entire outer surface of the fixing contact piece 8 can be covered with the insulating plate 9. Can be protected.

Further, one of the fixed contact pieces 8 and 8 is directly or directly connected via a lamp to the ground of an automobile chassis or the like at a short distance, and only the other fixed contact piece 8 has a U-shaped rising support piece 8a. After that, the plug portion 8b is formed and the plug cover 10
Alternatively, the other fixed contact piece 8 may be dropped to the body ground at a close distance as described above by connecting the circuit with a known plug-in jack J (see FIG. 3).

Further, as shown in FIG. 8, the shape of the rising support piece 8a of the fixed contact piece 8 is such that it projects to one side, and this rising support piece 8a is inserted into the base piece projection groove 1a as shown in FIG. The rising portion can be supported.

Furthermore, if three or more fixed contact pieces 8 and 8 are arranged side by side, two adjacent fixed contact pieces 8 and 8 can be sequentially turned on and off by the fixed contact piece 7, and the switching type Can be used as a slide switch.

The portion indicated by reference numeral 8c in FIG. 1 is a V-shaped notch or hole, and by engaging this with the pin 1b of the base 1, the positioning and orientation of the fixed contact piece 8 can be ensured.

Next, the operation of this slide switch will be described. First, as shown in FIG. 10, when the movable contact piece 7 is in the left-moving state, the fixed contact pieces 8 and 8 can be electrically connected across the two contact portions of the movable contact piece 7.

Next, as shown in FIG. 11, when the knob 4 is moved to the right, the right contact of one movable contact piece comes into contact with the inner surface of the insulating plate 9 to cut off the conduction between the fixed contact pieces 8 and 8 and switch off. Can be

Then, for example, one plug piece 8b is connected to the power source positive pole, and the other plug piece 8b is connected to the power source negative pole through a door switch and a load such as a lamp in series. Move the movable contact piece 7 to the fixed contact piece 8,8
By controlling the continuity between the two, it is possible to manually turn off the in-vehicle lamp or turn it on when the door is opened.

The guide leg 7a of the movable contact piece 7 is shown in FIG.
By making it short together with the resilient spring 6, the slide switch as a whole can be made flat. Further, the slide body 5 is formed with a molding pin removal hole 5b for expanding the depth of the recess 2 as shown in FIGS. 2 and 3, as shown in FIGS.

[0022]

Since the present invention is constructed as described above, it has the following effects. The fixed contact piece 8 and the plug piece 8b are positioned and fixed by inserting the rising support pieces 8a into the body projecting piece groove 1a, respectively. Moreover, the fixed contact piece 8 has the inner surface groove 9a of the insulating plate 9 serving as a switch lid or the base body concave portion. Place 2
The upper edge groove 2a can be oriented, and the plug piece 8b can be protected by the plug cover.

Therefore, the fixed contact piece 8 does not indiscriminately move due to a disturbance such as sliding contact friction by the movable contact piece 7, and the plug piece 8b does not come into contact with the plug-in jack or the like when it is inserted or removed. Therefore, good contact condition can be maintained for a long time, and the fixed contact piece 8 can be connected to another place with one-touch via the jack J. It is convenient and can be assembled by matching all the members from one direction. In addition, there are many effects that automatic production can be promoted and high quality uniform products can be provided in large quantities at low cost.

According to the second aspect of the present invention, since the movable contact piece 8 is provided with the rising support piece 8a formed by the U-shaped bending extending to the side of the base body recess 2, the whole base body recess 2 is fixed. The effect of concealing protection can be added with the insulating plate 9 including all outer surfaces of 8,8.

According to the third aspect, it is possible to add the effect that the insulating plate 9 can be fixed to the insulating substrate 1 with one touch without using screws.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention.

FIG. 2 is an exploded sectional view of an embodiment of the present invention.

FIG. 3 is a cross-sectional view of FIG. 2 and an assembled structure.

FIG. 4 is a sectional view taken along the line of FIG.

FIG. 5 is a cutaway perspective view of an essential part of FIG. 1 after assembly.

FIG. 6 is an exploded sectional view showing another example of the present invention.

FIG. 7 is a sectional view showing another example of the present invention.

FIG. 8 is a perspective view showing another example of the rising support piece according to the present invention.

FIG. 9 is a perspective view showing another example of the protruding groove according to the present invention.

FIG. 10 is a vertical sectional view showing an example of use of the product of the present invention.

11 is a vertical cross-sectional view showing a state different from that shown in FIG.

FIG. 12 is a cross-sectional view of an assembly example in which the temporary fixing leg of the movable contact piece is shortened.

[Explanation of symbols]

 1 Insulating base 1a Projecting piece groove 2 Recess 3 Long hole 4 Knob 5 Sliding body 6 Resilient spring 7 Movable contact piece 8 Fixed contact piece 8a Rise support piece 8b Plug piece 9 Insulation plate 9a Through hole 9b Fixed contact piece Embedded groove 10 Plug cover

Claims (3)

[Claims] 1. A recess 2 of the insulating base 1 is formed by projecting a knob 4 to the outside from a long hole 3 connected to the recess 2 of the insulating base 1.
A slide body 5 is movably provided inside the slide body, and
5 is provided with a plurality of fixed contact pieces 8 and 8 slidably contacting a movable contact piece 7 elastically provided through an elastic spring 6 and the outer surface of which is an insulating plate 9
In the slide switch covered with, each fixed contact piece 8,
At least one of the fixed contact pieces 8 among 8 is bent in a U shape, and the rising support piece 8a is supported by the protruding piece groove 1a of the base body 1, and the plug portion 8b at the tip thereof is attached to the insulating plate 9. A slide switch protected by an integrally formed plug cover 10. 2. The rising support piece 8a of the fixed contact piece 8 is provided in the recess.
The slide switch according to claim 1, wherein the fixed contact piece (8) extending to the side of (2) is formed at a U-shaped bent portion. 3. The insulating base plate 9 is insulated with its hook-shaped bullet pieces 9c.
3. The slide switch according to claim 1, wherein the slide switch is elastically contacted with and fixed to the edge of the side wall recess 1b.