Abstract: An operating structure of an electrical switch is an assembly comprising a contact arm part, a fixed contact part and an insulating part preferably sandwiched therebetween. The contact arm part and the fixed contact arm are made of electrically conducting material. The insulating part is preferably of a thermoplastic material. The contact arm part and the fixed contact part are provided each with two securing holes. To assemble the three parts, the material of the insulating part in its portions associated with the securing holes is locally brought into a plastic state and bulged out through the securing holes. Then, the bulges are flattened, clinched or the like, at the other side to form a structure which is joined by quasi-rivets of plastic. The manufacture of this structure takes place in a timed sequence with suitable stamping and forming tools.

Abstract: An electrical switch, comprises, a casing of a nonconductive material, having first and second spaced apart upstanding supports, with a contact plate of an electrically conductive material having an intermediate spring portion, with an outwardly extending arcuate bulge portion intermediate its length and a bridging member on each side of the spring portion, and an end portion on each end interconnecting the spring portion with at least one end of each bridging member and supported on respective spaced apart supports. The intermediate spring portion is held in an outwardly biased position extending in the direction of the arcuate portion by the contact plate construction, and it bears against an actuating member which may move it in a direction opposite to the bias direction.

Abstract: A switch construction comprises a housing which has a base wall and an upstanding side wall with first and second contact terminals arranged in spaced locations in the housing and with one of them bent over on its top so as to form a contact making portion. A spring member has an upper part with one end engaged in a V-shaped bearing on the one contact terminal and has a lower part with a contact arm which is engageable with the contact portion of the other terminal. The upper and lower parts of the spring member are interconnected by a curved bearing portion which is engaged and supported in the housing sidewall. In addition the spring member has an intermediate part of the upper portion which is substantially straight and which is engageable by an extension of an actuation member which is engaged on the housing and confined for movement upwardly and downwardly within predetermined limits.