JPH0887929A - Slide switch - Google Patents

Abstract

PURPOSE: To perform one-touch connection through a plug-in jack by a plug, integrally formed with a fixed contact piece between a power supply line and a load, through slide switch operation, and further to prevent a plug part from randomly acting. CONSTITUTION: A slider 5 is movably provided in a recessed part 2 of an insulating base unit 1 toward a knob 4 in the outside from a slot 3 successively connected in line with the recessed part 2 of the insulating base unit 1, also to juxtapose a plurality of fixed contact pieces 8, 8 brought into slide contact with a movable contact piece 7 elastically provided through an elastic spring 6 in this slider 5, and an external surface of these fixed contact pieces is covered with an insulating plate 9. A rear side part of at least the one fixed contact piece 8 of each fixed contact piece 8, 8 is raised to fold in its thickness direction to an L shape, to form a rising support piece 8a, and by connecting to continue to its upper part, a plug part 8b is integrally formed in a front surface vertical straight line. A guide frame 10 guiding a plug-in jack J, fitted to this plug part 8b, is protrusively provided in an external surface of the insulating plate 9, to insert the rising support piece 8a to a rear part vertical groove 10a of this insulating plate, so as to position a base part of the plug part 8b 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 of at least one of the fixed contact pieces is folded up in an L-shape in the thickness direction to form a rising support piece, which is connected to the upper part to integrate the plug part into one vertical character on the front. The base portion of the plug portion is formed by forming a guide piece that is formed on the outer surface of the insulating plate and inserts the rising support piece 8a into the rear longitudinal groove of the insulating plate. This was achieved by positioning reinforcement.

[0006]

The plug portion integrally projecting with 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. Combined with the fact that it is a letter, the plug part will not inadvertently go up or warp due to insertion and removal of the jack or disturbance, and the base of the plug part will be the edge of the vertical groove of the guide frame for insertion guide of the plug-in jack. Can be positioned and can be reinforced in the thickness direction. 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.

In the present invention, as shown in FIG. 1, the fixed contact pieces 8, 8 or at least one of the fixed contact pieces 8 has a rear side portion formed in an L shape in the thickness direction thereof. A bending upright is formed to form a rising support piece 8a, a side edge portion of the tip upper part thereof is bent, and a plug portion 8b of a front vertical character having a shape which extends to the front and does not bend indefinitely is made in advance. .

Then, the insulating plate 9 is covered from above the fixed contact piece 8 on the opening edge of the base 1 through the plug portion 8b in the long hole 9a of the insulating plate 9 and fixed to the base 1 with a screw or the like. In this case, for example, a flat U-shaped guide frame 10 for guiding the insertion of the plug-in jack J (FIG. 3) is provided around the hole 9a formed through the insulating plate 9 at a position corresponding to the plug portion 8b. In addition, by inserting the rising support piece 8a into the vertical groove 10a having a substantially L-shaped plane cut in the rear portion thereof as shown in FIG. 1, the periphery of the most part of the rising portion 8a is drawn at the edge of the vertical groove 10a. 3. As shown in FIG. 5, the slide switch according to the present invention is constructed by surrounding and reinforcing the base of the plug portion 8b in the direction of the thickness of the plug portion and fixing the insulating plate 9 to the base 1.

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 of the plug portion 8b can be positioned by the edge of the vertical groove 10a of the guide frame 10 for inserting and guiding the plug-in jack J (FIG. 3), and can be reinforced in the thickness direction without being fooled by a delusion. . Further, the fixed contact piece 8 itself is embedded in the 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 into the vertical groove 1a as shown in FIG. 3 through the state of FIG. 2, it is possible to temporarily fix the fixed contact piece 8 to the insulating base 1 against the elastic force of the spring-repellent spring 6, and to perform automatic assembly. 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 hide it, the side of the insulating base 1 is partially overhanged, and the vicinity of the rising support piece at the rear of the fixed contact piece 8 is placed on this overhanging portion, and the insulating plate with the guide frame 10 formed on the overhanging portion. By covering 9 from above the fixed contact piece 8 via the plug piece 8b in the same manner as described above, the entire outer surface of the fixed contact piece 8 facing the base recess 2 can be covered and protected by the insulating plate 9.

Further, one of the fixed contact pieces 8 and 8 is directly or directly connected to the ground via a lamp and is grounded to an automobile chassis or the like, and only the other fixed contact piece 8 is connected via the rising support piece 8a to the plug. The portion 8b is formed and covered with the guide frame 10, and a well-known plug-in jack J (see FIG. 3) is inserted into the plug portion 8b using this guide frame side as a guide to connect the plug portion 8b and the jack J to a circuit. The other fixed contact piece 8 may be dropped onto the body earth by screwing or the like at a close distance as described above.

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 plug portion 8b integrally projecting on the fixed contact piece 8 of the slide switch is one character in the vertical direction and is reinforced by the rising support piece 8a inserted in the rear vertical groove 10a of the jack insertion guide frame 10 of the insulating plate 9. Therefore, the plug portion 8b does not unknowingly warp or warp due to the insertion or removal of the jack or disturbance, and 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 J (FIG. 3), the fixed contact piece 8 can be mounted accurately, and the electrical reliability can be improved. There are first and second effects that 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 Repellent spring 7 Moving contact piece 8 Fixed contact piece 8a Standing support piece 8b Plug part 8c Lower protrusion 9 Insulating plate 9a Long 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 of 8 is folded up in an L-shape in the thickness direction thereof to form a rising support piece 8a,
The plug portion 8b is integrally formed on the upper part of the front portion so as to be formed in a single vertical character, and a guide frame 10 for guiding the plug-in jack J fitted into the plug portion 8b is provided on the outer surface of the insulating plate 9 so as to project therefrom. A slide switch in which the base of the plug portion 8b is positioned and reinforced by inserting the rising support piece 8a into the rear longitudinal groove 10a. 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.