Patent ID: 8021071
Filing Date: 2011-09-20
Classification: B25J,Y10T

Abstract:
1. A compliant joint comprising: a housing having an inner annular wall; a cam member rotatably mounted in the housing to non-rotatably drive the housing and to rotate about a rotation axis within the housing when a torque which exceeds a predetermined value is applied to one of the housing and the cam member, the cam member including a radially extending mounting hole; a roller spring device mounted to the cam member to be compressed and extended, the roller spring device including a roller body supporting a roller and a spring member connected to the roller body mounted in the mounting hole to bias the roller radially outward so that the roller is moved in accordance with compression and extension of the spring member; and a substantially circular guiding member defined by the inner annular wall of the housing to guide compression and extension of the roller spring device in accordance with rotation of the cam member, wherein the guiding member includes