Push-button switches

Details Push-button switches Push-button switches

H - Electricity

01

H

H01H 3/12 (2006.01) H01H 13/02 (2006.01) H01H 13/10 (2006.01) H01H 13/12 (2006.01)

Patent

CA 2102392

Push-button switches include a housing which defines an interior space and an opposed pair of longitudinally oriented recessed channels. At least upper regions of the recessed channels are open to said defined interior space. A pair of elongate fixed contact strips are each positioned within a respective one of the defined recessed channels, the fixed contact strips being of a sufficient length so that a terminal end portion thereof is disposed in the open upper region of the recessed channel to thereby be exposed to the interior space of the housing. In this regard, the housing preferably includes interior cover walls covering a major extent of the recessed channels so that the terminal end portions of the fixed contact strips positioned therewithin are exposed to the defined housing interior space. A push-button assembly is received within the interior space of the housing for reciprocal movements between extended and retracted position, with a spring urging the push-button assembly into the extended position. The push button assembly includes a slide contact member which is movable with the push-button assembly between the extended and retracted positions thereof. The slide contact member has a pair of resilient contact legs each contacting a respective one of the exposed terminal end portions of the fixed contact strips when the push-button assembly is in the extended position, whereby an electrical circuit is made, and is spaced from the respective one of the fixed contact strips when the push-button assembly is in the retracted position, whereby an electrical circuit is broken.

Interrupteur à bouton-poussoir comportant un boîtier définissant un espace intérieur et une paire de cavités longitudinales opposées dont la partie supérieure au moins communique avec ledit espace intérieur. € cet égard, le boîtier est de préférence muni de cloisons intérieures refermant la majeure partie desdites cavités, n'en laissant que la partie supérieure ouverte. Un contact fixe est logé dans chacune desdites cavités. Ces contacts sont de forme allongée et de longueur suffisante pour que leur extrémité atteigne la partie supérieure ouverte desdites cavités et se trouve exposée. Le boîtier renferme un mécanisme à bouton-poussoir avec ressort de rappel à la position de repos, auquel est fixé un contact mobile qui se déplace en translation lorsqu'on appuie sur le bouton-poussoir pour l'enfoncer ou le rappeler à sa position de repos. Ce contact mobile comporte une paire de lamelles souples qui entrent en contact chacune avec l'extrémité exposée d'un des contacts fixes lorsque le bouton-poussoir est enfoncé, établissant ainsi la fermeture du circuit électrique, et qui se séparent des contacts fixes lorsque le bouton-poussoir est rappelé à la position de repos, établissant ainsi l'ouverture du circuit.

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