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
【課題】低い駆動抵抗と高い構造強度を両立する、すなわち高い摺動性を有し、かつ耐屈折性に優れる自転車用チェーンを提供する。【解決手段】ピン4の表面が硬化処理層4aを有し、ブシュ2の内周面2a及び両端面は、表面に固体潤滑剤を含む高摺動層を有し、ブシュ2の外周面23は、内リンク10のブシュ嵌合孔1aに嵌合する部分が母材表面からなる。更にピン4の硬化処理層4aのピン嵌合孔5aに嵌合する部分、及びブシュ2の母材表面を研磨する。【選択図】図1
CHAIN FOR BICYCLE, BICYCLE COMPRISING THE SAME, AND MANUFACTURING METHOD OF CHAIN FOR BICYCLE
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
2022-03-04
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 |