E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
E05F 15/00 (2006.01)
Patent
CA 2110035
ABSTRACT A safety system for a passage closure member, such as a gate, door, window, sliding roof or the like, has a drive whose maximal admissible strain value is adjustable and a control device by means of which the drive can be switched off. When the drive is switched off because the maximal admissible strain value has been attained, a signal S2 at the moment in time T2 is transmitted to the control device. In the area of the pressing and/or closing edge of the closure member is arranged a sensor that transmits a signal S1 at the moment in time T1 when an obstacle occurs. The control device calculates, when the maximal admissible strain value is attained, the differential value between the moments in time .DELTA. Treal = T2-T1. The control device compares the value .DELTA. Treal with a predetermined value Tprede., and when .DELTA. Treal is higher than .DELTA. Tpredet., the direction of movement of the closure member is changed.
Sommer Frank-Uwe
Swabey Ogilvy Renault
LandOfFree
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