JPH08138489A - Slide switch - Google Patents

Abstract

PURPOSE: To enable connection by one touch operation via a plug-in jack by means of plug part molded in one body with a fixed contact and prevent uncontrolled motion of the plug, by inserting a standing supporting piece into a rear longitudinal groove of a guide frame. CONSTITUTION: A plug part 8b which is projectingly-arranged in one body with a fixed contact 8 of a slide switch is reinforced by means of a standing support piece 8a which is inserted into a rear longitudinal groove 10a of a plug-in jack J insertion/extraction introducing guide frame 10 of an electric insulating board 9. Thereby, the plug part does not uncontrolledly bow nor warp by the insertion/extraction of the jack or disturbance and is always kept in good using condition. Also, the base part of the part 8b is positioned by a rim circumference of the groove 10a of the guide frame 10 and mounting of the contact 8 can be performed precisly and electrical reliability can be improved as well, yield rate of automatic assembly of whole the slide switch can be improved.

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, a conventional slide switch has been proposed by, for example, the applicant of the present invention.
There was one described in Japanese Patent No. 12. In this conventional technique, in a slide switch provided with a movable contact piece on a sliding body, a knob is projected outside from a hole of an upper plate of an insulating base formed into a substantially U-shaped cross section, and is inserted into a recess of the insulating base. A plurality of small-width conductive members provided with an insulative slidable body movably, a movable conductor projecting with a spring disposed under the slidable body, and a bump contact portion slidably contacting the movable conductor. A slide switch in which plates are fixed in parallel to the lower part of the insulating base.

[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.
Since the place of application is greatly limited and accidental contact with other members occurs due to the protruding part of the fixed contact piece, it is easy to cause accidental contact with other members, and the extended exposed part of the fixed contact piece remains insulated over the entire length. There are many problems that it is troublesome and costly because it is necessary to prevent concealment due to concealment and short-circuiting.

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 forming a slide switch in which a movable conductor self-projecting is provided in the lower part of the sliding body, a plurality of fixed contact pieces straddling the movable conductor are provided in parallel, and the outer surface of which is covered with an insulating plate. , The rear side of at least one of the fixed contact pieces is folded up in an L-shape in the thickness direction thereof, and the rising support piece and its upper side are concatenated in a front vertical single letter shape. A bent plug portion is integrally formed, and a guide frame for guiding a plug-in jack fitted into the plug portion is projected on the outer surface of the insulating plate, and the rising support piece is inserted into the rear longitudinal groove. By doing so, by positioning and reinforcing the base of the plug part It could be formed.

[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. Combined with the vertical character, the plug part does not inadvertently warp or warp due to the insertion or removal of the jack or disturbance, and the base of the plug part is the vertical guide frame for inserting the plug-in jack. It can be positioned by the edge of the groove 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 opposing 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 disturbance such as sliding friction caused by the movable conductor, and the plug portion does not move in the case of inserting / removing the separately-installed plug-in jack or the like.

Then, for example, a power source positive pole is connected to one plug portion, and the other plug portion 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 is moved to make a movable contact. By controlling the conduction between the fixed contact pieces with one piece, for example, the in-vehicle lamp can be manually turned off or turned on when the door is opened.

Further, as a fixed contact piece of the slide switch, a part of a strip-shaped narrow conductive plate for wiring called a so-called bus bar is used, and a plurality of them are fixed in parallel to form a valley or a fixed portion between these fixed contact pieces. The movable conductor, which is moved by a knob in the valley between the bump contact portions formed on the contact piece, elastically snaps down, and the fixed contact pieces on both sides of the movable conductor can be short-circuited to be turned on.

The movable conductor operated by the above-mentioned knob is elastically slid into the gap between the fixed contact pieces (conductive plates for wiring) or the valleys between these curved projections, thereby operating the knob as a slide switch. Click action or snap action occurs.

Further, by sliding the sliding body by a knob operation, the movable conductor is ejected from each of the above-mentioned valleys against the self-projecting elastic force to switch off or drop the movable conductor in another valley. This serves as a single-pole double-throw / double-pole double-throw selector switch.

[0012]

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. Then, as shown in FIG. 2, a movable conductor 7 such as a steel ball 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 strip fixed contact pieces 8 on the outer surface of the movable conductor 7 on the upper edge of the insulating base recess 2, are well known. By arranging them in parallel through the positioning means as shown in FIGS. 4 and 5, the outer surface of which is covered with the insulating plate 9 screwed to the base body 1 with the screw holes n as shown in FIGS. The movable conductor 7 is partially dropped as shown in FIG. 6 in the valley between the two fixed contact pieces 8 and 8 or in the valley between the curved projections 8A of the fixed contact pieces 8 and 8 as shown in FIGS. As a result, a slide switch for electrically connecting the fixed contact pieces 8, 8 can be configured.

Incidentally, when the movable conductor 7 is dropped between the two fixed contact pieces 8 and 8 to be turned on without forming the curved projection 8A on the fixed contact pieces 8 and 8, it is natural. Meanwhile, a gap in which the movable conductor 7 partially falls is formed between the two fixed contact pieces.

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 which is L-shaped in the thickness direction thereof. By bending and standing up, a rising support piece 8a is formed, and the upper part of the front side edge is bent and extended toward you to form a plug portion 8b having one character in the vertical direction.

Next, the plug portion 8 is placed in 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 the position corresponding to the plug portion 8b is used. A guide frame 10, which is, for example, a one-sided open frame shape and which inserts and guides the plug-in jack J (FIG. 3), is provided around the hole 9a that is transparently provided on the plate 9.

Then, 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 edge of the vertical groove 10a surrounds most of the rising portion 8a. The plug portion 8b by surrounding it as shown in FIGS.
The base portion of (1) is firmly positioned and reinforced from its thickness direction, and the insulating plate 9 is fixed to the base body 1 to form the slide switch according to the present invention.

That is, the rising support piece 8a and the plug portion 8b, which are integrally projected on the fixed contact piece 8 in the slide switch of the present invention, become firm due to 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 the base projection 2b.
Alternatively, it is embedded in a fixed contact piece positioning groove 9b formed in the facing surface of the base body 1 or the insulating plate 9 or is positioned strictly by a screw or other known positioning means.

The lower protrusion 8c of the rising support 8a
By pressing (see FIG. 1) into the vertical groove 1a of the insulating base 1 through the state of FIG. 2 as shown in FIG. 3, the fixed contact piece 8 is temporarily attached to the insulating base 1 against the elastic force of the elastic spring 6. Can be fixed,
The insulating plate 9 can be easily covered during automatic assembly.

Further, the fixing means of the insulating plate 9 to the base body 1 is a hook-shaped bullet piece 9c shown by a 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 covered with an insulating plate 9.
In order to conceal with, the side of the insulating base 1 is partially overhanged, and the vicinity of the L-shaped rising portion at the rear of the fixed contact piece 8 is placed on this overhanging portion, and the perforated guide frame 10 is formed on the overhanging portion. By covering the insulating plate 9 via the plug portion 8b from above the fixed contact piece 8 in the same manner as described above, the entire outer surface of the fixed contact piece 8 facing the base recess 2 can be concealed and protected by the insulating plate 9.

Further, one of the fixed contact pieces 8 and 8 is grounded directly or via a lamp to an automobile chassis or the like at a short distance, and only the other fixed contact piece 8 is provided with 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 plug portion 8b and the jack J with a circuit, and the other fixed contact piece 8 is the above-mentioned. It may be dropped onto the body earth by screwing at a close distance.

Further, 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 movable conductor 7, and the slide switch can be changed over. Can be used as 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, when the movable conductor 7 is moved to the left, for example, the valley between the fixed contact pieces 8 or 8 or the curved projections 8A and 8A as shown in FIG.
The fixed contact pieces can be electrically connected to each other in a state where the movable conductor 7 partially falls in the valley.

Next, when the knob 4 is moved to the right, the movable conductor escapes from the above-mentioned valleys against the self-projecting elastic force, and then abuts on the inner surface of the insulating plate 9 as shown in FIG. The connection between the pieces 8, 8 can be cut off and switched off. Then, for example, one plug portion 8b is connected to the positive electrode of the power source, and the other plug portion 8b or the fixed contact piece 8 is connected to the negative electrode of the power source through a door switch and a load such as a lamp in series to form a sliding member. By moving 5 to drop the movable conductor 7 between the fixed contact pieces 8 and 8 to control the conduction between these, it is possible to manually turn off the in-vehicle lamp or turn it on when the door is opened.

The guide frame 10 itself may be a double-sided open frame other than the one-sided open frame shape shown in the figure. The point is that the guide frame 10 guides the insertion position of the plug-in jack J into the plug portion 8b. I wish I had it.

[0028]

Since the present invention is configured as described above, it has the following effects. The plug portion 8b integrally provided on the fixed contact piece 8 of the slide switch 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, and the plug portion 8b. Combined with the fact that it is one character vertically on the front, the plug portion 8b is
There is the first effect that a good use condition can be maintained at all times without causing a delirious dent or warping due to the insertion or removal of a jack or a disturbance.

Moreover, according to the present invention, the base 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 J (FIG. 3), so that the fixed contact piece 8 can be mounted accurately. The second effect is that 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 piece 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.

In 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.

Furthermore, the movable conductor 7 for operating the knob is a valley between the fixed contact pieces 8 and 8 which are integrated with the narrow-width conductive plate, and the curved portion 8 is formed.
By elastically snapping into the valley between A and 8A,
Since the click operation, that is, the snap action can be applied to the knob operation as the slide switch, there is the sixth effect that the control operation as the switch is improved while the knob operation with a snap and snap can be performed.

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 spring-repellent 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 base 1 by 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 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 Resilient spring 7 Moving conductor 8 Fixed contact piece 8A Fixed contact piece Curvature protrusion (curve contact portion) 8a Rise support piece 8b Plug part 8c Lower protrusion 9 Insulation plate 9a Hole 9b Fixed contact piece embedded groove 9c Hook bullet 10 Plug-in jack guide frame for insertion / removal 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. The movable conductor 7 self-projecting is provided at the bottom of the
In a slide switch in which a plurality of fixed contact pieces 8 that are elastically contacted over and are arranged in parallel and whose outer surface is covered with an insulating plate 9,
The rear side portion of at least one of the fixed contact pieces 8 and 8 is folded up in an L-shape in the thickness direction so that the upright support piece 8a and its upper side are one character in the vertical direction. And a plug portion 8b that is bent and connected in a circular shape are integrally formed, and a guide frame 10 that guides a 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 from the rear longitudinal groove. A slide switch in which the base of the plug portion 8b is positioned and reinforced by inserting the rising support piece 8a into 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.