Patent ID: 7311625

Claim:
A rotating apparatus with a torque limiter function, comprising: an input side rotating member which is rotated in accordance with a drive force produced by a drive source; and an output side rotating member which is connected to the input side rotating member through a screw engagement and is rotated integrally with the input side rotating member; wherein: the screw engagement portion, between the input side rotating member and the output side rotating member, is provided with threads so as to increase a tightening torque when the input side rotating member is powered by the drive source; the output side rotating member is provided with a breakable part which is fractured due to a tensile axial force produced by the tightening torque when the tightening torque acting on the screw engagement portion is above a predetermined value; the output side rotating member includes a shaft having a stepped portion defined by a small diameter part and a large diameter part; the male screw part and the breakable part are provided on the small diameter part; and the input side rotating member is pressed against the stepped portion by the axial tension produced by the tightening torque.