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1. (WO2015115392) ROLLER CHAIN

Pub. No.:    WO/2015/115392    International Application No.:    PCT/JP2015/052102
Publication Date: Fri Aug 07 01:59:59 CEST 2015 International Filing Date: Wed Jan 28 00:59:59 CET 2015
IPC: F16G 13/06
Applicants: TSUBAKIMOTO CHAIN CO.
株式会社椿本チエイン
Inventors: NIKAIDO, Sachio
二階堂 祥雄
Title: ROLLER CHAIN
Abstract:
A roller chain (11) is provided with rollers (20); pairs of pins (18, 19), the pins (18, 19) of each of the pairs respectively having protruding curved surfaces (21, 22) on the peripheral surfaces thereof; and link plates (12, 14) longitudinally adjacent to each other. A pair of pins (18, 19) connects adjacent link plates (12, 14) in a bendable manner while the pins (18, 19) are inserted through a roller (20) with the protruding curved surfaces (21, 22) in linear contact with each other. Each of the pins has, on the peripheral surface portion thereof which is located on one side of the protruding curved surface in the circumferential direction of the pin, a first contact section (25a, 26a) in contact with the inner peripheral surface (20a) of the roller. Each of the pins also has, on the peripheral surface portion thereof which is located on the other side of the protruding curved surface in the circumferential direction of the pin, a second contact section (25b, 26b) in contact with the inner peripheral surface of the roller.