Safety edge switch for detection of obstructions encountered by a moving object
US5296658A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1992 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Sep 25, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2900/55
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A safety edge switch which may be utilized to sense an obstruction present in a window opening upon closure of the respective window of an automotive vehicle. The switch may be secured to a window opening by adhesive attachment. The switch includes an outer peripheral portion preferably shaped as an oval and constructed of a resilient material which defines a central aperture. A second smaller structure constructed of conductive elastomer is located in the central aperture and secured to an internal wall thereof. A portion of the outer peripheral member opposite the second smaller oval shaped structure features a conductive elastomeric portion extending parallel thereto and maintained separate therefrom by the resilient physical properties of the outer peripheral portion. The assembly provides a switch which may be actuated upon displacement of a first dimension A which preferably interrupts application of power to the actuator causing window closure and, in addition, permits a second displacement which accommodates any overtravel such as dimension B which may occur subsequent to removal of power from the actuator closing the referenced window. The conductive elastomeric portions i…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.