| 摘要 |
PROBLEM TO BE SOLVED: To provide a torque limiter in which abrasion of the tip surface of a cam projection is suppressed and which has high durability.SOLUTION: A torque limiter 15 is mounted to the inside of a housing 23 so as to freely relatively rotate a hub 24; a piston member 28 is mounted to a cylinder chamber 26 of the hub 24; a pair of ring bodies 36 biased in a direction of approaching each other by a dish spring set 35 are arranged in the axial center of the hub 24; a wedge-shaped projection 30 of the piston member 28 is supported by the ring bodies 36 to hold the piston member 28 at a power transmission position; a lubricant supply part is penetrated through the piston member 28 in the radial direction of the housing 23; and a lubrication hole 31 is opened to a tip surface 29c of a cam projection 29 and a tip surface 30b of the wedge-shaped projection 30 is provided. |
