JPH0887928A - Slide switch - Google Patents

Abstract

(57) [Abstract] [Purpose] A slide switch operation allows a one-touch connection via a plug-in jack with a plug integrally formed on a fixed contact between a power line and a load, and prevents the plug part from moving. [Structure] A sliding body 5 is movably provided in the recess 2 of the insulating base 1 by directing a knob 4 from a long hole 3 connected to the recess 2 of the insulating base 1 to the outside, and an elastic force is applied to the sliding body 5. In a slide switch in which a plurality of fixed contact pieces 8 and 8 slidably contacting a movable contact piece 7 elastically provided through a spring-repellent spring 6 are arranged, and the outer surface of which is covered with an insulating plate 9, the fixed contact pieces 8 and 8 are provided. The rear side portion of at least one of the fixed contact pieces 8 is bent in a U-shape in the thickness direction thereof to integrally form a rising support piece 8a and a plug portion 8b connected to the upper portion thereof. A guide frame 10 for guiding the plug-in jack J fitted in the plug portion 8b is provided on the outer surface of the insulating plate 9 so that the rising support piece 8a is inserted into the rear longitudinal groove 10a. The positioning was reinforced.

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 technique, 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 from the long hole to the outside are provided. 4 is projected and is provided in the recess of the insulating base body so as to be movable therein, and an insulative slide body, and a locking hole (recess) which communicates with a pair of holes formed in the lower portion of the slide body.
And a movable contact piece having a substantially U-shaped cross section having a locking portion inserted and locked in the locking hole (recess) through the hole, and interposed between the upper surface of the movable contact piece and the sliding body. The slide switch is provided with the elastic repellent spring and an insulating plate for disposing a plurality of fixed contact pieces which slide over the movable contact piece and are in sliding contact with the movable contact piece.

[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 a one-touch connection via a plug-in jack by a plug portion integrally formed on a fixed contact piece between a power supply line and a load by a slide switch operation, and The purpose is to prevent the fixed contact plug part from moving.

[0005]

SUMMARY OF THE INVENTION The above-mentioned object of the present invention is provided with a sliding body movably provided in the recess of the insulating base by directing a knob from the elongated hole connected to the recess of the insulating base to the outside. In order to construct a slide switch in which a plurality of fixed contact pieces that slidably contact a movable contact piece that is elastically provided via an elastic spring on this slide body and whose outer surface is covered with an insulating plate are used, The rear side portion of at least one of the fixed contact pieces is folded in a U-shape in the thickness direction thereof to integrally form a wide rising support piece and a plug portion connected to the upper part thereof, and Achieved by positioning and reinforcing the base of the plug part by projecting a guide piece for guiding a plug-in jack that is fitted into the outer surface of the insulating plate and inserting the rising support piece 8a in the rear longitudinal groove. did it.

[0006]

The plug portion integrally projecting on the fixed contact piece can be reinforced by the rising support piece inserted in the vertical groove of the projecting jack guide frame on the insulating plate covered with the insulating base. The plug part does not inadvertently bulge or warp due to insertion and removal of external parts, and the base part of the plug part can be positioned by the edge of the vertical groove of the guide frame for insertion guide of the plug-in jack, and it is reinforced in the thickness direction. it can. Further, the fixed contact piece itself can be embedded in a fixed contact piece positioning groove formed on the facing surface of the base projection or the base or the insulating plate, or can be positioned strictly by a screw or other well-known localization means.

Therefore, the fixed contact piece does not move unintentionally due to a disturbance such as sliding friction caused by the movable contact piece, and the plug portion does not move when the separate plug-in jack is inserted or removed. Then, for example, one plug part is connected to the power source positive electrode, and the other plug part is connected to the power source negative electrode through the door switch and a load such as a lamp in series, and the sliding member is moved and fixed by the movable contact piece. By controlling the conduction between the contact pieces, for example, the in-vehicle lamp can be manually turned off or turned on when the door is opened.

[0008]

EXAMPLES Examples will be described with reference to the drawings. First, as shown in FIG. 1, the basic structure of the present invention is 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 a plastic in the shape of a hollow rectangular parallelepiped 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. A movable contact piece 7 having a pair of temporary fixing legs 7a elastically as shown in FIG. 2 is provided in a recess 5a opening to the outer surface of the sliding body 5 via an elastic spring 6 such as a coil spring.

Further, well-known positioning grooves 2a, pins 2b, etc., which are formed by cutting a plurality of metal band fixed contact pieces 8, 8 slidably in contact with the outer surface of the movable contact piece 7 on the upper edge of the insulating base recess 2 are known. As shown in FIG. 4, the insulating plates 9 are arranged side by side in parallel via the positioning means, and the outer surfaces of the insulating plates 9 are screwed to the base body 1 with the screw holes n.
A slide switch can be configured by covering and positioning as shown in FIG.

According to the present invention, as shown in FIG. 1, the rear side portion of each of the fixed contact pieces 8 and 8 or at least one of the fixed contact pieces 8 is formed in a U-shape in the thickness direction thereof. By bending and standing up, a wide upright supporting piece 8a is formed, and the tip of the upstanding supporting piece 8a is extended forward to form a plug portion 8b.

Next, the plug portion 8 is inserted into the hole 9a of the insulating plate 9.
The insulating plate 9 is covered from above the fixed contact piece 8 on the opening edge of the base body 1 through b and is fixed to the base body 1 with a screw or the like. In this fixing, the insulating plate at a position corresponding to the plug portion 8b is used. For example, a planar U-shaped guide frame 10 for inserting and guiding the plug-in jack J (FIG. 3) is provided around the hole 9a formed through the plate 9, and the rear surface thereof is cut substantially as shown in FIG. A wide upright supporting piece 8a in the L-shaped vertical groove 10a
By inserting the vertical groove 10a, the rising portion 8
Around the most part of a as shown in FIGS. 3 and 5, the base of the plug portion 8b is satisfactorily positioned and reinforced from the thickness direction thereof, and the insulating plate 9 is fixed to the base 1 to form the slide switch according to the present invention. To do.

That is, the rising support piece 8a integrally provided on the fixed contact piece 8 and the plug portion 8b in the slide switch of the present invention become solid by the above-mentioned positioning and reinforcing action, and the plug portion 8b is removed by the insertion and removal of the jack or the disturbance. The base portion of the plug portion 8b can be positioned by the edge of the vertical groove 10a of the insertion guide frame 10 of the plug-in jack (FIG. 3) and can be reinforced in the wall thickness direction without being fooled by a delusion or warped up. Further, the fixed contact piece 8 itself is embedded in a fixed contact piece positioning groove 9b formed on the opposing surface of the base body protruding piece 2b, the base body 1 or the insulating plate 9 or is positioned strictly by screws or other well-known localization means. There is. The lower protrusion 8c (see FIG. 1) of the rising support piece 8a is connected to the insulating base 1
By press-fitting the fixing contact piece 8 into the vertical groove 1a as shown in FIG. 3 through the state of FIG. 2, the fixing contact piece 8 can be temporarily fixed to the insulating base 1 against the elastic force of the spring-repellent spring 6. The contact insulating plate 9 can be easily covered.

Further, the fixing means of the insulating plate 9 to the substrate 1 is not limited to the screwing, but a hook-shaped bullet piece 9c shown by a one-dot chain line in FIG.
Can be fixed by any known fixing means such as hooking and fixing to the upper edge of the side wall recess 1b of the substrate 1 by its elasticity.

In addition, all outer surfaces of the fixed contact pieces 8 and 8 are insulated by an insulating plate 9.
In order to conceal with, the side of the insulating substrate 1 is partially overhanged, the vicinity of the U-shaped rising portion at the rear of the fixed contact piece 8 is placed on this overhanging portion, and the guide frame 10 is placed on the overhanging portion.
By covering the formed insulating plate 9 from above the fixed contact piece 8 via the plug piece 8b in the same manner as described above, the base recess 2 of the fixed contact piece 8 is formed.
The entire outer surface facing to can be hidden and protected by the insulating plate 9.

Furthermore, one of the fixed contact pieces 8 and 8 is directly or via a lamp connected to an automobile chassis or the like at a close distance to ground, and only the other fixed contact piece 8 has a wide rising support piece 8a. After that, the plug portion 8b is formed and the guide frame 10 is formed.
A known plug-in jack J (see FIG. 3) is inserted into the plug portion 8b by using this guide frame side as a guide to connect the plaque portion 8b and the jack J to the circuit, and the other fixed contact piece 8 is the above-mentioned. It may be dropped onto the body ground by screwing at a close distance.

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 / off by the fixed contact piece 7, and the switching type slide can be used. Can be used as a switch. In addition, in FIG. 1, a portion indicated by reference numeral 8d is a V-shaped notch or a hole, which is a pin 1 of the base body 1.
By engaging with b, the fixed contact piece 8 can be reliably positioned and oriented.

Next, the operation of this slide switch will be described. First, as shown in FIG. 6, when the movable contact piece 7 is moved to the left, the two contact portions of the movable contact piece 7 can be electrically connected between the fixed contact pieces 8 and 8.

Next, as shown in FIG. 7, 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 disconnect the conduction between the fixed contact pieces 8, 8. Can be switched off. Then, for example, a power source positive pole is connected to one plug piece 8b, 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, and the sliding member 5 is moved to move the movable conductor. By controlling the conduction between the fixed contact pieces 8 and 8 by 7, it is possible to, for example, manually turn off the in-vehicle lamp or turn it on when the door is open.

The length of the movable contact piece 7 is determined by the guide leg 7 thereof.
By shortening a together with the elastic spring 6, the slide switch as a whole can be made flat. Further, the slide body 5 is formed with a molding pin extraction hole 5b as shown in FIGS. 1 and 3 in order to widen the depth of the recess 2 as shown in FIGS. 2 and 3, and the guide frame 10 itself is It may be a two-sided open frame.

[0020]

Since the present invention is configured as described above, it has the following effects. The wide plug portion 8b integrally provided on the fixed contact piece 8 of the slide switch is reinforced by the rising support piece 8a inserted into the rear vertical groove 10a of the jack insertion guide frame 10 of the insulating plate 9, so that the jack The plug portion 8b does not unknowingly warp or warp due to insertion and removal or disturbance, and the base portion of the plug portion 8b is positioned by the edge of the vertical groove 10a of the guide frame 10 for insertion guide of the plug-in jack J (Fig. 3) Therefore, the fixed contact piece 8 can be mounted accurately, the electrical reliability can be improved, and the yield of non-defective products in the automatic assembly of the entire slide switch can be improved.

Further, the fixed contact piece 8 itself is the base projection 2b.
Since the fixed contact piece 8 can be embedded in the fixed contact piece positioning groove 9b formed on the opposite surface of the base body 1 or the insulating plate 9 or can be strictly positioned and reinforced by screws or other well-known localization means, the fixed contact piece 8 is formed by the movable contact piece 7. There is also a third effect that it is possible to always perform a good insertion / removal operation and to maintain an electrical contact state for a long period of time without involuntarily moving due to a disturbance such as sliding contact friction.

Further, according to the present invention, the plug-in jack J is attached to the plug portion 8b of the fixed contact piece 8 and the guide frame 10 of the insulating plate 9 is provided.
With this, it is possible to insert and connect randomly and it is easy to use, and it is possible to assemble it by matching all the members from one direction. There is also the effect of 5.

According to the second aspect, the fixed contact piece 8 can be temporarily fixed to the base body 1 against the elastic force of the resilient spring 6, so that the base body of the fixed contact piece can be arranged more easily. Was able to be added.

According to the third aspect, it is possible to add the industrial effect that the insulating plate 9 can be quickly fixed to the insulating substrate 1 with the hook-shaped bullet piece 9c 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 sectional view of the structure shown in FIG. 2 after assembly.

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

FIG. 7 is a vertical cross-sectional view showing a state different from that shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Insulating base 1a Vertical groove 1b Side wall recess 2 Recess 3 Long hole 4 Knob 5 Sliding body 6 Elastic spring 7 Removable contact piece 8 Fixed contact piece 8a Wide rising support piece 8b Plug part 8c Lower protrusion 9 Insulation plate 9a hole 9b Fixed contact piece embedded groove 9c Hook bullet 10 Guide frame for plug-in jack insertion guide 10a Rear vertical groove J plug-in jack

Claims (3)

[Claims] 1. A slide body 5 is movably provided in the recess 2 of the insulating base 1 by directing a knob 4 to the outside from a long hole 3 connected to the recess 2 of the insulating base 1, and the slide body 5 is also provided. In the slide switch, a plurality of fixed contact pieces 8, 8 which are slidably in contact with a movable contact piece 7 elastically provided via an elastic spring 6 are provided side by side, and the outer surface of the fixed contact pieces 8 is covered with an insulating plate 9. 8,
The rear side portion of at least one of the fixed contact pieces 8 is folded in a U-shape in the thickness direction to integrally form a wide upright supporting piece 8a and a plug portion 8b connected to the upper part thereof. , Plug-in jack J to be inserted into this plug portion 8b
A slide switch formed by projecting a guide frame 10 that guides the outer surface of the insulating plate 9 and inserting the rising support piece 8a into the rear longitudinal groove 10a to position and reinforce the base portion of the plug portion 8b. 2. The fixed contact piece 8 can be temporarily fixed to the insulating base 1 against the elastic force of the elastic spring 6 by press-fitting the lower protrusion 8c of the rising support piece 8a into the vertical groove 1a of the insulating base 1. The slide switch according to claim 1, 3. The slide switch according to claim 1, wherein the insulating plate 9 is fixed by elastically contacting the edge of the side wall recess 1b of the insulating base 1 with the hook-shaped bullet piece 9c.