Push-push switch
US4463231A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1982 |
| Grant date | Jul 31, 1984 |
| Priority date | — |
| Expiry date | Aug 26, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/58
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An improved push-push switch (10) suitable for complete automatic assembly is disclosed. The push-push switch (10) contains essentially two moving parts comprising an actuator (50) and a cam (60), the cam (60) coupled by keyway connections (63) for rotation with the actuator (50). Switch contacts (43, 47, 49) are located adjacent the moving switch parts in order to effect a make and break type of switch operation. The actuator (50) has interior (56) and exterior (54) gear teeth which mesh with cover gear teeth (36) and housing gear teeth (14), respectively, to effect rotation of the actuator (50) and the cam (60). The configuration of the cover gear teeth (36) and the associated interior actuator gear teeth (56) provide an axial over-travel of the actuator (50) without effecting any appreciable rotational movement of the actuator (50), thereby compensating for accumulated manufacturing tolerances without affecting switching functions relative to axial displacement of the actuator (50). Rounded and shape edged cam surfaces (64, 65, and 66, 67) produce the same tactile "feel" during the inward axial movements of the actuator (50), whether the switch contacts (47, 49) are being opened…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.