US 11,988,267 B2
Chain
Tatsuya Hidaka, Osaka (JP); and Masahiro Koyama, Osaka (JP)
Assigned to TSUBAKIMOTO CHAIN CO., Osaka (JP)
Filed by TSUBAKIMOTO CHAIN CO., Osaka (JP)
Filed on Oct. 13, 2022, as Appl. No. 17/965,492.
Claims priority of application No. 2021-170368 (JP), filed on Oct. 18, 2021.
Prior Publication US 2023/0117839 A1, Apr. 20, 2023
Int. Cl. F16G 13/06 (2006.01)
CPC F16G 13/06 (2013.01) 4 Claims
OG exemplary drawing
 
1. A chain comprising:
a multiplicity of pairs of left and right inner link plates; and
a multiplicity of pairs of left and right outer link plates each disposed on both outer sides of the pairs of left and right inner link plates, the inner link plates and the outer link plates being alternately coupled together by connecting pins along a longitudinal direction of the chain,
the plurality of inner link plates having a height from a pitch line to a highest point on a backside thereof that is different from a height from a pitch line to a highest point on a backside of the plurality of outer link plates by more than 0 and not greater than 0.5 mm, wherein
one of the plurality of inner link plates and the plurality of outer link plates has a curved backside that is convex toward a height direction of the chain at a middle in a longitudinal direction of the chain, and
the other of the plurality of inner link plates and the plurality of outer link plates has a flat backside having a constant height along the longitudinal direction of the chain.