To provide a chain for a bicycle capable of attaining both low drive resistance and high structural strength, that is having high slidability, and excellent in refraction resistance.SOLUTION: A surface of a pin 4 has a hardened layer 4a, and an inner peripheral surface 2a and both end surfaces of a bush 2 have a high slide layer containing a solid lubricant on the surface. An outer peripheral surface 23 of the bush 2 has a portion that is fitted into a bush fitting hole 1a of an inner link 10 and is formed of a base material surface. Further, a portion of the pin 4 to be fitted to a pin fitting hole 5a of the hardened layer 4a and the surface of the base material of the bush 2 are polished.SELECTED DRAWING: Figure 1
自転車用チェーン、これを備えた自転車、及び自転車用チェーンの製造方法
2024-03-26
Patent
Elektronische Ressource
Japanisch
IPC: | F16G Riemen, Kabel oder Seile, vorwiegend für Antriebszwecke , BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / C23C Beschichten metallischer Werkstoffe , COATING METALLIC MATERIAL |