DE1012353B - Electric toggle switch - Google Patents

Description

GERMAN

The invention relates to an electrical toggle switch with a guided in the actuator, against a spring force movable switching body which carries the contact element, and one Cam-like elevation provided in the base, over which the switch body moves when switching is, whereby the switching spring tensions up to the highest point of the elevation and after exceeding this point is partially relaxed and the switch body abruptly in the corresponding Brings final position.

In such known switches, the contact bridge is directly over the cam-like elevation moves, which has the disadvantage that the movable contacts other than an electrical Stress are also exposed to mechanical stress. As the contact parts slide directly on the cam-like elevation made of insulating material, is caused by the frictional stress after a few switching movements, a metal deposit of the relevant contact material appears of the slideway. This metal deposit can be the cause of leakage currents or flashovers be.

To now such an arrangement, which has few individual parts and a simple structure, essentially to be able to maintain, however, without having to accept the disadvantages described, is proposed according to the invention, the switch body next to or between the contact points with a To provide approach approach, which is led away when switching over the cam-like elevation and the moving contact points lifts up floating freely and brings them into the other switching position. in the In contrast to the known devices, the contacts are in the switch according to the invention always moves freely with each switching movement, d. that is, they do not grind on the surface of the cam-like Elevation.

An advantageous embodiment of the invention is that the switching body with a in its central part U-shaped contact member consists of one piece and this U-shaped part as a bearing point for a roller serving as a run-on surface or a similarly acting means, e.g. B. a ball serves.

In the drawing, an embodiment according to the invention is shown.

Figure 1 shows the elevation,

Figure 2 shows the side view along the line AB and

Figure 3 shows the plan of a toggle switch along the line CD ;

Figure 4 shows the special design of the switch body with a built-in roller and

Figure 5 shows the corresponding side view.

Electric toggle switch

Applicant:

Voigt & Haeffner Aktiengesellschaft,
Frankfurt / M., Hanauer Landstr. 142-172

Ludwig Kohl, book blades (Odenw.),
has been named as the inventor

The actuator 1 is provided with a protruding into the control room 2 approach 3, in which Cavity 4 a switch body 6 movable against the pressure of the spring 5 is arranged. The switch body 6 is provided at the lower end with, for example, a semicircular approach extension 7, which during the switching process as a result of the spring force against the cam-like arranged on the bottom of the switch base 8 Elevation 9 is pressed. Until the highest point is reached, the under one Certain preload standing spring 5 is even more tensioned, and the switch body 6 performs an inevitable Movement in the cavity 4 and at the same time lifts the contact member 10, for example in Form a contact bridge, so that the movable contact points 11 to meet the neighboring fixed contact are guided freely floating. As soon as the approach approach 7 of the switch body 6 has reached the highest point 12 of the cam-like elevation 9, the spring 5 and relaxes brings the contact member 10 into the opposite switching position.

The spring 5 therefore has the task of triggering the switching moment when the tipping point 12 is reached and to ensure the necessary contact pressure, which is achieved by preloading the spring during installation can be set arbitrarily in the actuator 1.

In the pictures 4 and 5, the switching body 6 is shown on an enlarged scale, which with the U-shaped bent contact member 10 forms a structural unit. So that the friction between the Switching body 6 and the cam-like elevation 9 is reduced, is in the U-shaped contact member 10 A roller 13 is arranged as a casserole approach. The roller 13 does not need, as shown, with lateral bearing

709 588/189

but can be stored in some other way.

Claims (2)

Patent claims: 1. Electric toggle switch with one in the actuator guided, against a spring force movable switch body, which the contact member carries, and a cam-like elevation provided in the base bottom over which when switching the switch body is moved away, with the switch spring up to the highest point of the Elevation tenses and, after this point is exceeded, partially relaxes and the switch body suddenly brings into the corresponding end position, characterized in that on the Switching body (6) next to or between the contact points (11) a run-up attachment (7) is provided is, which is passed away when switching over the cam-like elevation (9) and lifts the movable contact points (11) floating freely and brings it to the other switch position. 2. Electrical toggle switch according to claim 1, characterized in that the switch body (6) besif | ijt with a U-shaped contact member (10) in its middle part made of one piece and this U-shaped part as a bearing point for a «roll (13) or a] similar acting agent is used. - Considered publications:
German Patent No. 580 865;
British Patent Nos. 530,622, 608,820;
U.S. Patents Nos. 2,399,462, 1,882,857, 400,849, 2,625,620. 1 sheet of drawings © 709 588/189 7.57