JPS60232620A - Switch - Google Patents

Abstract

1. A switch having two pin-shaped fixed contacts (6a, 6b), which pass through a housing base plate (1) at a predetermined distance from one another and a contact bridge (7) made of spring sheet metal and consisting of a strip of flat material which extends between the fixed contacts (6a, 6b) and, in the region of a first end section (8a), has a tab (12) bent out of the strip and is braced by means of the tab (12) between one wall (10) of the housing and one of the fixed contacts (6a), and in which an operating body (17) guided in the switch housing, is provided with at least one projection (18) which interacts with at least one suitably bent section of the contact bridge (7) to operate or lock the operating body as the case may be, characterised in that the strip of flat material (7) is arranged in the switch housing with its flat faces (9) at right angles to the direction of the housing base plate (1) ; that the strip (7) is fixed at its first end section (8a) obliquely to the connecting line (26) of the two fixed contacts (6a, 6b), between a supporting wall (10) of the housing similarly obliquely positioned, and a first one (6a) of the two fixed contacts (6a, 6b) by means of the tab (12), and with a prestress so produced, is resiliently supported at its other, second end section (8b), on the other, second (6b) of the two fixed contacts (6a, 6b) ; and that the operating body is a contact slide (17) guided in the housing parallel to the connecting line (26) between the two fixed contacts (6a, 6b).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides two
and a connecting bridge made from a flat plate and extending between the fixed contacts, the connecting bridge being formed from a flat plate strip in a first end region. the actuating body inserted into the switch case has at least one protrusion; The projection relates to a switch in which actuation of the switch or locking of the actuating body is effected in cooperation with at least one correspondingly curved connecting bridge part.

The prior art homologous Nosisochiha is known from DE-OS 2621864. In the case of the known switch, the connecting bridge, which is made of a spring plate and consists of a flat strip, exerts a force on the actuating body, which is pivotably supported thereon, to move it away from the floor plate, so that the force is It must be received by the upper case member.

Problems to be Solved by the Invention As a result, the work of attaching the upper case member to the lower case member or the case floor plate must be relatively expensive. It is therefore an object of the invention to make a switch of the type mentioned at the outset as simple and easy to assemble as possible, while at the same time ensuring that no force is exerted on any position of the actuating body from the connecting bolt in a direction opposite to the floor plate. The purpose is to configure it so that it does not apply any force to the operating body. According to the present invention, this object is solved as follows. That is, a flat strip of material is arranged in the switch case with its flat side at right angles to the direction of extension of the case floor plate, the first end of which lies against the connecting line between the two rotating contacts. A lug is tightened between the supporting wall of the case provided on the body in the direction of the stabbing and the first of the two fixed contacts, and the nonoiasuka generated thereby The other second end portion is elastically supported by a second fixed contact of both fixed contacts, and the actuating body is provided in the case parallel to a line connecting both fixed contacts. It is a contact slider.

A special effect obtained with this switch configuration is that the connection lines (flat strips) that are pushed toward the second fixed contact automatically move when the switch is assembled due to the angle that the support wall forms with the connection line. regulated, so that a constant contact pressure is always guaranteed for any switch.

According to an embodiment, the strip is curved in a central region towards the free end of the first end in an approximately trapezoidal manner, and the contact slide has a plate-shaped projection in the direction of the floor plate, which projection is arranged in the on position of the switch. into the curvature of the central strip region and having a projection transversely to the connecting line at its end facing towards the second fixed contact; A locking lock is obtained behind the bend in the strip acting on the barrel part and in front of the second fixed contact.

From the above, in the on position of the switch, the contact slider is firmly held by the trapezoidal bulge in this position without using any other auxiliary means, while in the on position of the switch, the protrusion of the protrusion is held in the flat strip. The strip (connection bridge) protrudes behind the bend in the direction of the second fixed contact, thus holding the contact slider firmly in this position and removing the flat strip (connection bridge) from its second fixed contact. It appears to hold firmly in place. Furthermore, according to a further embodiment of the invention, the contact slides are arranged on the one hand on a high platform opposite the floorboard and on the other hand on the force
It is supported along with its protrusions by the bases. By supporting the contact slider via its projection on a platform that is higher than the rest of the floorboard, the projection has a relatively greater dimensional stability despite its slender construction. This is because it is dimensioned relatively short in the direction of the floorboard.

According to a further embodiment of the invention, a two-plate is provided as an end stop of the contact slider and is inserted between two case side walls integral with the floor plate, in which case the two-plate is inserted between two case side walls integral with the floor plate. are further placed on the two side walls forming the guide walls of the contact slider, and are also
The plate has an actuation cam guide thrust projecting from the contact slider.

This switch arrangement is advantageous because it allows the counter-contact slider to be provided without applying force into the housing. In other words, power
This is because it is sufficient to provide a plastically deformable rib on the edge of the case (-). The lip arrangement makes it possible to fix the ζ-plate sufficiently securely on the switch casing if the ζ-plate is pushed in between the side walls of the casing forming the stop for the contact slide.

Furthermore, according to another embodiment of the invention, a plurality of integrally connected switch cases having a common force S-plate and arranged parallel to each other and separated from each other by guide side walls, each having a pair of stationary contacts, It has a connecting bridge and a contact slider.

Embodiments of the switch according to the invention will be explained in detail with reference to the following three drawings.

The following can be seen from each drawing. That is, the switch case has a bottom plate 1, from which side walls 2 and 3, which are integrally connected to the bottom plate 1, protrude at right angles to the bottom plate. At this time, the side walls 2 and 3 form a substantially long rectangular parallelepiped-shaped hollow space or cavity 28 together with the bottom plate l, into which the bottom plate l is penetrated, and the bottle 4 fixed inside this bottom plate is inserted. There is. These bins are each assigned to the narrow side 29 of the hollow space 28 and, together with their ends projecting parallel into the side wall 2.3 into this hollow space (or into the cavity 28), respectively form a fixed contact 5a, 5b of the switch. ing.

On the outer surface of the base plate 1, a connecting element (not shown) is formed which can be inserted into a reference locking hole of a printed circuit board. In order to electrically connect both rotational constant contacts 6a and 6b to each other, 1. A connecting bridge 7 is provided which is made from a S-plate strip and consists of a flat plate strip. The bridge strip 7 is permanently electrically connected to the first contact 6a of the two rotating contacts 6a, 6b. This takes place in the following way: the strip 7, which is arranged with its flat side 9 at right angles to the direction of extension of the base plate 1 in the housing cavity 28, has a first end belonging to the first fixed contact 68. This lug has a lug 12 bent out from the strip 7, forming a window 11 obliquely in the direction of extension of the strip 7 in the area of the portion 8a, the free end of which is separated from the bottom plate 1. This is done by elastically abutting the first fixed contact 6a together with the first fixed contact 6a.

The elastic abutment of the lug 12 on the first fixed contact 6a is caused by the strip 7
is composed of a first end 8a and an actuating body 3o that is integrally connected to the floor plate 1 by the screw action of the lug 12 on the side facing away from the first fixed contact 6a and projects into the cavity 28. This is done by being pressed against the support wall 10. Furthermore, the lug 12 can be fixed to the stationary contact by a welded connection, for example created by a sensor. The supporting wall 10 extends perpendicularly to the floor plate l and at a distance from the connecting line 26 between the two rotary contacts 6a, 6b. As a result, the first end 8a of the strip 7 also connects to the connecting line 26.
You will be driving diagonally to the For this reason, when mounting the strip 7, this strip has its second end 8b, which belongs to the other second fixed contact 6b, connected to this fixed contact 6b.
At the rear, it must be bent back to the same side as the first end 8a lies with respect to the first fixed contact 6a. Therefore, the strip 7 has a narrow spacing due to the first end 8a being located at the waist with respect to the connecting line, and the strip 7 has a narrow spacing due to which the first end 8a is located at the waist with respect to the connecting line, and the strip 7 has a narrow spacing due to which the first end 8a is located at the waist with respect to the connecting line. and comes into contact with the second fixed contact 6b. In order to easily attach the strip 7 between the support wall 10 and the first fixed contact 6a, the first fixed contact 6a
The actuating body 30, which forms the support wall 10 with its side facing a, is provided with an inclined portion 31. Furthermore, the actuating body 30 and the first end 8ad of the strip 7 protrude from the first fixed contact 6a, which has a width of approximately the width of the edge 13, which edge is connected to the strip at the first end 8a of the strip 7. A window 11 is formed on the upper side of the piece, thus on the side remote from the floorboard 1. A recessed part 14 is provided in the actuating body 30 within the region of this edge part 13, and the first end part 8a is connected to the supporting wall 1.
0 and the first fixed contact 6a so that the edge can be inserted without being disturbed by the installation tool.

Second end 8b where contact connection is made with second fixed contact 6b
and the first end 8a, the strip 7 in the central region
The free end 27 of the first end 8a is formed into a substantially trapezoidal shape.
A curved portion 32 facing the side is provided. The plate-like projection 16 of the contact slider 17 projects into the region of the curved portion 32 from above.

In the on position of the switch, the protrusion 16 is located in the area of the bend 32 without any force applied thereto.

The contact slider 17 is provided parallel to the connection line 26 through the side wall 3 extending parallel to the connection line 26 . In contrast, the side wall 2 running transversely constitutes the end section of the contact slide 17. When the contact slider is moved in the direction of the second fixed contact 6b, the projection 16 is moved into the path of extension of the strip 7 with a camp-like projection 18 projecting from the projection 16 transversely to the direction of movement of the contact slider. The curved portion 32 abuts against a part of the strip 7 formed on the side of the second fixed contact 6b. Second end 8 of strip 7
b is therefore pulled off from the second fixed contact, thereby breaking the electrical connection between the first and second fixed contacts. The bend 2o provided in the extension path of the strip 7 between the central region 15 and the second end 8b is designed as follows, i.e. the protrusion 16 is secured to the second fixation by means of the protrusion 18. Contact 6b
on the side of the flexure 20, so that the contact slider 17 is locked in the off position of the switch on the one hand with the side wall 2
0, and on the other hand, it is designed to be held firmly by a protrusion supported on the bend 2o. To turn on the switch, the contact slider only needs to be moved briefly in the direction of the first fixed contact 6b. Because, as soon as the projection 18 overcomes the bend 20, the contact slide 17 is automatically moved again by the diagonal section 19 of the strip 7.
This is because the switch returns to its other end position, which belongs to the OFF position of the switch. The protrusions 16 are located on both side walls 3 of the case.
on one side facing away from the strip 7, and against this wall,
Therefore, the force acting on the protrusion 16 from the strip 7 can be received. Block-shaped contact slider 17
is supported in the direction of the floor plate via a protrusion 16 on a plant form, which has a higher horizontal surface than the rest of the floor plate 1, so that the protrusion 1
The length of the protrusion 16 can be limited to a size that ensures sufficient stability of the protrusion 16 toward the floor plate 1.

At the same time, the first fixing part 19 and the second end 8b of the strip 7 can be pivoted into the area of the plant platform 21. Contact 6a
The strip is dimensioned to be fairly wide in the region of the first end 8a and relatively narrow in the region of the second end 8b, in order to allow stable positioning of the strip 7 against the floor plate 1. The upper part of the strip 7 runs approximately parallel to the floorboard l, but the edge of the strip 7 facing towards the floorboard 1 is connected to the peg 19 and the first end 8a of the strip 7. In between, there is a transition part 33 directed upward from the floorboard 1 to the trunk.

On the side of the case separated from the floor plate 1, there is a force
22 closes the cavity 28, the plate 22 comprising:
It is inserted between its case side walls 2 forming an end stop for the contact slider 17. Ka ζ-plate 22
The contact slider 17 is held firmly in the cavity 28 in a direction away from the floor plate 1.

The actuating cam 24 of the contact slider 17 projects through the cummer plate 220 guide slit so that it is flush with the free end of the side wall 2.

22 forms a conical recess 34 on the side facing away from the floor plate 1 that surrounds the actuating cam 24 on at least three sides so that it can be gripped securely by the actuating tool. Make it. The operating plate 22 is provided with a plastically deformable rib on its edge, and when the operating plate 22 is pressurized, the rib flexes between the side walls 2, resulting in a force ζ-
V-) 22 firmly in the installed state. The cup ζ plate 22 then rests on the guide side wall 3 which extends parallel to the connecting line 26. The through switch shown in FIG. 3 is installed according to the dual in-line circuit/ξ socketage method, and has a switch device configuration in which the outlets 5 are arranged in two rows parallel to each other and protrude from the case into the lead wire space of the hole in the printed circuit board. It is best suited as a component. Each switch can be operated independently of the other switches of the switching device.

The side walls 2 and 3 of the case are constructed integrally with the floor plate 1, and the pin 4
Since the switch can be fixed airtightly and watertightly into the floorboard l by soldering, harmful substances cannot enter the interior of the switch unless it passes through the guide slit 23. However, by designing the actuating cam 24 coplanar with the side walls 2 and end walls 3 of the switch array, the upper side of the switch or switch device consisting of a number of such switches is connected to a common force plate 22. The switch case, which is integrally formed with the floor plate 1 and the side walls 2, 3, and the printed circuit board connected to the switch can be sealed with adhesive foil 25, which is pulled out only after the switch is completely adjusted. During operation of the switch, it is sufficient that the guide slit is sealed by the square contact slider 7 at any position of the contact slider.

[Brief explanation of the drawing]

Figure 1 is a side view of the switch, Figure 2 is the force/ζ-zo v-)
Figure 3 is a side view of the switch with the switch case partially cut away and the connecting bridge and fixed contacts omitted, showing that the switch is integrated into one piece. FIG. 2 shows, together with the connected switch case, a component of a switch device consisting of a large number of parallel switches; 1... Floor board, 2... Entostono ξ-side wall, 3...
...Guide side wall, 4...Bin, 5...Terminal, 6a...
- No. 1 fixed contact, 6b...Second fixed contact, 7.. Flat plate strip (connection preso), 8a... First end, 8b...
・Second end, 9... Child side part, 10... Support wall, 11.
...Window, 12...Punch, 13...Edge, 14.
... Recess, 15 ... Central region, 16 ... Projection material,
17...Contact slider, 18...Protrusion, 19...
Trunk part, 20... Bent part, 21... Plant phonium, 22... Force/ζ-plate, 23... Guide slit, 24... Operating cam, 25... Adhesive foil, 26...
・Connection line, 27...Free end, 28...Cavity, 29・
... Narrow side, 30... Actuating body, 31... Tilting body part, 3
2...Curved part.

Claims (1)

[Scope of Claims] 1. Two bottle-shaped fixed contacts passing through the case floor plate at a predetermined distance from each other, and a connection made from a flat plate strip and extending between the fixed contacts. a bridge, the connecting bridge having in its first end region a lug bent out of the strip and clamped between the case wall and one of the two fixed contacts; , the actuating body inserted into the switch case has at least one protrusion;
In a switch in which the projection cooperates with at least one correspondingly curved connecting bridge part to effect activation of the switch or locking of the actuating body, a flat strip of material (7) is formed on its flat side (9). ) and are arranged in the switch case at right angles to the extending direction of the case floor plate (1), and the first end (8a) of this piece
) and both fixed contacts (6a
, 6b) between the first fixed contact (6a) and the lug (
12), and the other second end (6b
) is the second fixed contact (6a, 6b) of both fixed contacts (6a, 6b)
6b), and the actuating body is a contact slider (17) provided in the case parallel to the line (26) connecting both fixed contacts (6a, 6b). Features a switch. 2. The strip (7) has a central region (15) and a first end (8
a) is curved into a substantially trapezoidal shape toward the free end (27), and the contact slider has a plate-shaped protrusion (16) toward the floor plate (1), and the protrusion (16) is centered in the on position of the switch. Part area (
15), and has a protrusion (18) oriented transversely to the connection line (26) at its end facing toward the second fixed contact (6b). action on the oblique portion (19) of the central strip region (15) and the bent portion (20) of the strip (7) provided in front of the second fixed contact (6b).
A switch according to claim 1, wherein a locking catch is obtained behind the switch. 3. The contact slider (17) is mounted on the high platform (21) opposite the floorboard (1) on the one hand and on the cupboard (22) of the case on the other hand with its protrusion (16).
A switch as claimed in claim 2 supported together. 4. Force/ζ-play) (22,) is the contact slider (
The contact slider (17) is inserted between the two case side walls (2) that are integrated with the floor plate (1), and is inserted between the two case side walls (2) that are integrated with the floor plate (1). 4. A switch according to claim 3, wherein the switch is placed on two side walls (3) forming guide walls of the switch. 5) (22) is the contact slider (17)
The guide sling of the operating cam (24) protruding from
A switch according to claim 1, having: 6. A lug (12) is bent out of the strip forming a window (11) obliquely in the direction of extension of the strip (7), said strip (7) being bent at its first end; (8a) has a width large enough to project the first fixed contact (8a) together with the edge (13) of the window (11), and has a concave opening upward in the support wall (10). Switch according to claim 1, characterized in that the inlet (14) is provided in the region of this edge (13). 7. A number of integrally connected switch cases having a common power plate (22), parallel to each other and separated from each other by guide side walls (3), and each pair of fixed contacts (6a, 6b), a switch according to any one of claims 1 to 6, comprising a connecting bridge (7) and a contact slider (17).