公开(公告)号：US20180245673A1

公开(公告)日：2018-08-30

申请号：US15889618

申请日：2018-02-06

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yohei Nakata ,  Toshitaka Ogo

IPC: F16H7/18

Abstract: A chain guide is provided which has a simple structure and improved durability, and which enables reduction in weight and in material cost, and moreover which does not inhibit smooth flow of resin inside a metal mold, and with which dimension errors, contour errors, internal distortion, defects and the like are reduced and concentration of internal stresses or repeatedly applied bending stresses can be prevented. A reinforcing rib of a body part includes a lateral rib that has an independent zone not connected to other parts of the reinforcing rib over a length of 20% or more of a distance between support portions at two locations of the rib. The independent zone is provided on a side further away from a guide surface than a midpoint of the height of the support wall.

公开(公告)号：US10670118B2

公开(公告)日：2020-06-02

申请号：US15798987

申请日：2017-10-31

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yohei Nakata ,  Yuji Kurematsu ,  Toshitaka Ogo

IPC: F16H7/08

Abstract: A tensioner with a simple structure is provided, which is capable of keeping oil pressure in a first high oil-pressure chamber stable and holding a chain favorably. The tensioner includes a plunger, a housing, a check valve, an inner sleeve, and a biasing member. In the housing, a second high oil-pressure chamber and a unit setting part are formed. In the unit setting part, a relief valve unit is set. A gap between an inner circumferential surface of a plunger hole and an outer circumferential surface of the inner sleeve functions as part of an oil flow passage that connects the first high oil-pressure chamber and the second high oil-pressure chamber.

公开(公告)号：US10753437B2

公开(公告)日：2020-08-25

申请号：US15889618

申请日：2018-02-06

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yohei Nakata ,  Toshitaka Ogo

IPC: F16H7/18 ,  F16H7/08

Abstract: A chain guide is provided which has a simple structure and improved durability, and which enables reduction in weight and in material cost, and moreover which does not inhibit smooth flow of resin inside a metal mold, and with which dimension errors, contour errors, internal distortion, defects and the like are reduced and concentration of internal stresses or repeatedly applied bending stresses can be prevented. A reinforcing rib of a body part includes a lateral rib that has an independent zone not connected to other parts of the reinforcing rib over a length of 20% or more of a distance between support portions at two locations of the rib. The independent zone is provided on a side further away from a guide surface than a midpoint of the height of the support wall.

公开(公告)号：US20180128355A1

公开(公告)日：2018-05-10

申请号：US15798987

申请日：2017-10-31

Applicant: TSUBAKIMOTO CHAIN CO.

Inventor： Yohei Nakata ,  Yuji Kurematsu ,  Toshitaka Ogo

IPC: F16H7/08

Abstract: A tensioner with a simple structure is provided, which is capable of keeping oil pressure in a first high oil-pressure chamber stable and holding a chain favorably. The tensioner includes a plunger, a housing, a check valve, an inner sleeve, and a biasing member. In the housing, a second high oil-pressure chamber and a unit setting part are formed. In the unit setting part, a relief valve unit is set. A gap between an inner circumferential surface of a plunger hole and an outer circumferential surface of the inner sleeve functions as part of an oil flow passage that connects the first high oil-pressure chamber and the second high oil-pressure chamber.