Patent ID: 9310196
Filing Date: 2016-04-12
CPC Classification: G01B

Claim Text:
1. A displacement detection device for detecting a change amount of relative positions of two parts as an angle displacement amount, the displacement detection device comprising: a link mechanism configured to connect the two parts, the link mechanism including at least one joint part; and a rotation angle detector connected to one end of the link mechanism, wherein a spring is used as the at least one joint part of the link mechanism, the spring is a torsion coil spring, the link mechanism includes two of the torsion coil springs, the link mechanism includes an intermediate connection part configured to connect the two of the torsion coil springs, a detector connection part extending from one of the two of the torsion coil springs, and a detection object connection part extending from another one of the two of the torsion coil springs, and the two of the torsion coil springs are formed by processing a single metal wire.