公开(公告)号：US12077207B2

公开(公告)日：2024-09-03

申请号：US17772779

申请日：2020-11-05

Applicant: NSK LTD.

Inventor： Seiichi Moriyama ,  Keisuke Nakao ,  Kaname Yasuda ,  Naofumi Fujita

IPC: B62D1/20 ,  F16J15/52

CPC classification number: B62D1/20 ,  F16J15/52

Abstract: Provided is an outer tube including a solid-shaped male-shaft portion and a bottomed cylindrical female-tube portion integrally formed with the male shaft portion. A hole cover is externally fitted to the female-tube portion and closes a gap between a dash panel separating the vehicle cabin interior and the vehicle cabin exterior of a vehicle body and the outer tube. In an assembled state in the vehicle body, the solid male-shaft portion is arranged in the vehicle cabin exterior, and an opening portion of a slide hole provided in the female-tube portion is arranged in the vehicle cabin interior.

公开(公告)号：US11982319B2

公开(公告)日：2024-05-14

申请号：US17296017

申请日：2019-11-18

Applicant: NSK Ltd.

Inventor： Seiichi Moriyama ,  Keisuke Nakao

IPC: F16D1/04 ,  F16C3/02 ,  F16D3/44 ,  B62D1/20

CPC classification number: F16D1/04 ,  F16C3/02 ,  F16D3/44 ,  B62D1/20 ,  F16C2326/24 ,  Y10T403/535 ,  Y10T403/5786 ,  Y10T403/7188

Abstract: The torque transmission shaft has a shaft having a hollow tubular shape and a clamp. The shaft has a connecting portion integral with the shaft at one axial end portion, a slit extending in the axial direction in a portion on the other axial end side and opens on the other side in the axial direction, and a female serration on the inner circumferential surface of the other axial end portion. The clamp is separate from the shaft and has a non-continuous portion at one location in the circumferential direction, a pair of flange portions on both sides of the non-continuous portion, and a connecting portion connecting the pair of flange portions in the circumferential direction. The clamp is externally fitted and fixed to the other axial end portion of the shaft and reduces the diameter of the other axial end side portion of the shaft.

公开(公告)号：US12110927B2

公开(公告)日：2024-10-08

申请号：US17425163

申请日：2020-01-22

Applicant: NSK Ltd.

Inventor： Seiichi Moriyama ,  Keisuke Nakao

IPC: F16D1/08 ,  F16D1/068 ,  F16D1/072

CPC classification number: F16D1/0864 ,  F16D1/068 ,  F16D1/072

Abstract: A torque transmission shaft includes a shaft and a clamp. The shaft includes: a male serration in one axial end portion; a slit in the other axial end portion, the slit axially extending and having a closed end on one side and an open end on the other side; a fitting cylinder portion in the other axial end portion; and a female serration provided in of the other axial end portion. The clamp includes: a discontinuous portion arranged at one place in the circumferential direction; a pair of flange portions arranged on both sides of the discontinuous portion; a connecting portion connecting the flange portions; and an insertion hole for fitting cylinder portion. The clamp is fitted onto the fitting cylinder portion to reduce the diameter of the fitting cylinder portion by narrowing the width dimension of the discontinuous portion.

公开(公告)号：US11035414B2

公开(公告)日：2021-06-15

申请号：US16644865

申请日：2018-09-05

Applicant: NSK Ltd.

Inventor： Seiichi Moriyama ,  Keisuke Nakao

IPC: F16D1/04 ,  F16C3/02 ,  B62D1/20

Abstract: The torque transmission shaft includes: a shaft that is integrally formed and that has a yoke provided at one end portion in the axial direction and a female serration provided on the inner peripheral surface at the other end in the axial direction; and a clamp that is separate from the shaft and that is capable of reducing the diameter of the other end portion of the shaft in the axial direction; wherein the shaft and the clamp are fixed together.

公开(公告)号：US11022179B2

公开(公告)日：2021-06-01

申请号：US16636163

申请日：2018-08-02

Applicant: NSK Ltd.

Inventor： Seiichi Moriyama ,  Keisuke Nakao

IPC: F16D1/027 ,  B62D1/19 ,  B62D1/20 ,  F16C3/03 ,  F16C3/035 ,  F16D3/06

Abstract: The shaft coupling structure includes: a male joint, and a female shaft that is coupled to male joint. The outer peripheral surface of the male joint has an outer peripheral side concave-convex portion having a concave-convex shape in the circumferential direction and an annular concave groove, and the inner peripheral surface of the female shaft has an inner peripheral side concave-convex portion having a concave-convex shape in the circumferential direction. The outer peripheral side concave-convex portion and the inner peripheral side concave-convex portion engage with a concave-convex engagement. The outer peripheral surface of the male joint and an end portion on one side of the female shaft in the axial direction are welded and fixed together, and an embossed portion provided on the inner peripheral surface of the female shaft is arranged on the inner side of the annular concave groove.