公开(公告)号：US12000457B2

公开(公告)日：2024-06-04

申请号：US18127117

申请日：2023-03-28

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yusuke Saito

IPC: F16G13/06

CPC classification number: F16G13/06

Abstract: An object of the present invention is to provide a chain that is easy to assemble, has a longer life and smaller size, and allows larger tolerance for misalignment. The object is achieved by a chain including a plurality of outer links each having a pair of outer plates and pins, and a plurality of inner links each having a pair of inner plates and bushings, alternately and pivotably coupled together in the longitudinal direction of the chain by the pins rotatably inserted into the bushings, with a position restricting part positioned between each pair of the inner plates to restrict inward movement of each pair of inner plates in the chain width direction. The bushings are rotatably inserted in respective bushing holes of each pair of inner plates.

公开(公告)号：US20230313863A1

公开(公告)日：2023-10-05

申请号：US18127117

申请日：2023-03-28

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yusuke Saito

IPC: F16G13/06

CPC classification number: F16G13/06

Abstract: An object of the present invention is to provide a chain that is easy to assemble, has a longer life and smaller size, and allows larger tolerance for misalignment. The object is achieved by a chain including a plurality of outer links each having a pair of outer plates and pins, and a plurality of inner links each having a pair of inner plates and bushings, alternately and pivotably coupled together in the longitudinal direction of the chain by the pins rotatably inserted into the bushings, with a position restricting part positioned between each pair of the inner plates to restrict inward movement of each pair of inner plates in the chain width direction. The bushings are rotatably inserted in respective bushing holes of each pair of inner plates.

公开(公告)号：US20220196115A1

公开(公告)日：2022-06-23

申请号：US17546849

申请日：2021-12-09

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yusuke Saito ,  Toyonaga Saitoh ,  Sota Yamaguchi ,  Shota Suyama

IPC: F16G13/07

Abstract: An object is to prevent a loss in sprocket drive efficiency and chain slacking. The chain includes a plurality of inner link plates, a plurality of outer link plates, and a plurality of pins. At least any of the plurality of inner link plates, outer link plates, or pins include a hardened surface layer on part or all of sliding surfaces that slide against other components, the hardened surface layer containing one of Cr carbide, Ti carbide, V carbide, Nb carbide, Cr nitride, Ti nitride, V nitride, and Nb nitride.