Displacement sensor for an actuating drive in particular in a vehicle

US5359884A · kind A · utility

Assignee

• Fichtel & Sachs · DE

Inventors

• Rainer Fey · Schweinfurt, DE
• Albert Thein · Haßfurt, DE

Key dates

• Filing date: Oct 15, 1992
• Grant date: Nov 1, 1994
• Expiry date: Oct 15, 2012

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E05B2047/003
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

A displacement sensor for an actuating drive, particularly in a vehicle, having an actuating motor and an especially power takeoff member of the actuating drive, comprising a sensor housing having an axis, a drive member drivable by the actuating motor and rotatably supported coaxially to said sensor housing, an intermediate member, rotatably supported coaxially with respect to said drive member, which intermediate member engages the power take-off member and is connected to the drive member via at least one of an overload clutch and a return stroke clutch and a rotary displacement pick-up means, arranged in said sensor housing and adapted to detect the instantaneous rotary position of the intermediate member and to output a signal indicating this rotary position. This displacement sensor is distinguished by a compact, robust embodiment and high-precision displacement detection.