Patent ID: 8365608
Filing Date: 2013-02-05
Classification: B25J,Y10T

Abstract:
1. A tension detection mechanism comprising: a linear member which extends in a longitudinal direction, and which is configured to transmit power; a restraining member including a restraining portion through which the linear member extends and which is configured to restrain movement of the linear member in the longitudinal direction partially; and a detection member which is provided to the restraining member and which is configured to detect tension of the linear member, wherein a length of a portion of the linear member restrained by the restraining portion is larger than a distance between two ends of the restraining member in the longitudinal direction of the linear member, the restraining portion includes a hole which extends through the two ends of the restraining member in the longitudinal direction and through which the linear member extends, and the hole is formed in a nonlinear shape deviating from a straight line connecting the two ends of the restraining member in the longitudinal direction.