Patent ID: 8875860
Filing Date: 2014-11-04
Classification: F16D,Y10T

Abstract:
1. A torque limiter comprising: a shaft member; and a cylindrical member which is fitted rotatably on the shaft member, the shaft member including: the cylindrical member including a circumferentially extended portion which faces axially the axial end face of the main body portion of the shaft member and which is extended circumferentially a predetermined dimension about a center axis of the shaft member, the circumferentially extended portion including: a cap member which is screwed in the threaded hole, wherein the cap member is adapted such that, when the cylindrical member stays still relative to the shaft member, the other end portion of the oil release passage is accommodated within the cap member which is screwed to be fixed in the threaded hole, such that when the cylindrical member rotates relative to the shaft member, the other end portion of the oil release passage is broken by the cap member, whereby the oil release passage is opened to the outside; and wherein the circumferentially extending groove is adapted such that, when the cylindrical member is rotated relative to the shaft member in such a state that the cap member is not screwed in the threaded hole and in such a state that the oil release passage is not opened to the outside, the other end portion of the oil release passage circumferentially moves within the circumferentially extended groove while being spaced apart from the circumferentially extended groove.