JPS633062Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a slide short circuit for a switch.

As a switch that employs a slide switching type contact structure, a movable member movably provided in the switch case holds a slide short circuit that movably comes into elastic contact with a fixed contact, and the movement of the movable member causes the By moving the short circuit, two of the plurality of fixed contacts arranged in the switch case in the direction of movement of the movable member are selectively short-circuited by the short circuit. There is.

FIG. 1 shows a conventionally known switch of this type. In the figure, 1 is a switch case, 2 is a movable member movably provided in the switch case 1, and this movable member 2 is pushed down by a pressing operation of an operating portion 2a protruding from the switch case 1, and is returned to its original position by a return spring 3. Numerals 4 and 4 are a plurality of fixed contacts arranged on both sides of the switch case 1 in the moving direction of the movable member 2, and 5 and 5 are slide short circuits held on both sides of the movable member 2, This short circuit 5 moves together with the movable member 2, and when the movable member 2 is pressed down, it short-circuits the two fixed contacts 4, 4 on the middle and lower side as shown in the figure, and when the movable member 2 returns, the two fixed contacts 4, 4 on the middle and upper side are short-circuited. The two fixed contacts 4, 4 are short-circuited.

By the way, the slide short circuit 5 conventionally used has a shape as shown in FIG. 2, in which a flat H-shaped metal plate is bent into a chevron shape so that both side pieces 5a, 5a have elasticity. This short circuit 5 is constructed by fitting a hole 6 provided in a connecting piece 5b that connects the tops of both side pieces 5a to a protrusion 7 protruding from the side surface of the movable member 2. It is fixed to the movable member 2 by means such as melting and crushing, and is in slidable elastic contact with the fixed contacts 4 at both ends of the side pieces 5a, 5a. The reason why the short circuit 5 is formed into an H-shape is to reduce the width of the mountain-shaped slope portion that becomes the elastic piece to provide flexible elasticity. , a and the other ends b, b are adapted to contact the same fixed contacts 4, 4, respectively.

However, the above conventional slide short circuit
Because it is H-shaped, it does not twist when sliding in the length direction shown by arrow A in Figure 2, but when sliding in the width direction shown by arrow B. has the disadvantage that the side pieces 5a, 5a cannot withstand the frictional resistance with the fixed contact 4 and are twisted and deformed.For this reason, the conventional slide short circuit is Since the only way to use the switch is to slide it down, the switches that use this slide short circuit are the ones that use a flexible elastic short circuit with longer lengths on both sides 5a, 5a. The length (the length in the moving direction of the moving member 2) had to be increased.

This idea was created in view of the above-mentioned circumstances, and its purpose is to prevent twisting and deformation even when sliding in the width direction. To provide a slide short circuit for a switch capable of reducing the length of the switch.

An embodiment of this invention will be described below with reference to the drawings.

As shown in FIG. 3, the slide short circuit of this embodiment has two side pieces 15a, 15a bent in a chevron shape with the top at the center, and two side pieces 15a, 15a.
Both side pieces 15b, 1 connecting both ends of 15a
5b, and a central connecting piece 15c that connects the tops of the side pieces 15a, 15a. The contact portions 16, 16 are formed protruding from the tops of the side pieces 15a, 15a, respectively, to contact the fixed contacts. The side pieces 15b, 15b are curved in an arc shape.

The slide short circuit of this embodiment is used by sliding in the width direction, that is, the direction perpendicular to the side pieces 15a, 15a, and a switch using this short circuit has the following construction, for example.

That is, in FIG. 4, reference numeral 11 is a switch case, 12 is a moving member, 12a is an operating portion thereof, 13 is a return spring, 14 is a fixed contact, and on both sides of the moving member 12 are movable parts. Short circuit holding grooves 17, 17 each having a U-shaped cross section are formed along a direction perpendicular to the moving direction of the member 12. The short circuit has both side pieces 15.
a, 15a are held in the holding groove 17 with the outer edges of the short circuit holding groove 17 facing the side wall surfaces of the shunt holding groove 17, and both side pieces 15b, 15b facing the bottom surface of the holding groove, and are held in the holding groove 17, and the movement of the moving member 12 is Holding groove 1
The moving member 12 is pushed by the outer edge of the side piece by the wall surface of 7.
It has begun to move as one. Further, the contact portions 16, 16 of the short circuit are brought into elastic contact with the fixed contacts 14, 14 by the elasticity of the side portions 15a, 15a bent in a chevron shape, and the movable member 12
By moving the two fixed contacts 14, 14, the two fixed contacts 14, 14 are selectively short-circuited.

Therefore, in the slide short circuit of this embodiment, the side pieces 15a, 15a are the side pieces 15b, 1.
5b and the central connecting piece 15c, the width direction (both side pieces 15a, 1
5a), the pushing force applied to one side piece 15a acts equally on the other side piece 15a over its entire length, Also, both side pieces 15a, 1
There is no possibility that 5a is twisted or deformed. Therefore, since this slide short circuit can be used in a form in which it slides in the width direction as shown in FIG. 4, the length of the switch can be reduced by using this slide short circuit.

The slide short circuit of this invention includes two side pieces bent into a chevron shape, a side piece connecting the two ends of the two side pieces, and a central connecting piece connecting the tops of the two side pieces. , and has a contact point protruding from the top of each side piece, so it can be slid in the width direction (direction perpendicular to the length direction of both side pieces). There is no twisting deformation, and therefore, with this slide short circuit, the length of the switch can be reduced by sliding it in the width direction.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view of a switch using a conventional slide short circuit, Fig. 2 is a perspective view showing a conventional slide short circuit, and Fig. 3 is a perspective view showing an embodiment of this invention. FIG. 4 is a longitudinal sectional front view showing an example of a switch using the slide short circuit of this invention. 15a... Side piece part, 15b... End piece part, 15c
...Central connecting piece part, 16...Contact part.

Claims (1)

[Scope of utility model registration request] A slide shunt that is held by a movable member and moves together with the movable member to selectively short-circuit two of a plurality of fixed contacts; It has a sun-shaped shape consisting of both end pieces that connect the both ends of the pieces, and a central connecting piece that connects the tops of the both side pieces,
A slide short circuit for a switch, characterized in that a contact portion that comes into contact with the fixed contact is formed protrudingly on the top of each of the side pieces.