Steering device

Patent metadata

Field	Value
Publication number	US-10875567-B2
Application number	US-201916296689-A
Country	US
Kind code	B2
Filing date	Mar 8, 2019
Priority date	Mar 12, 2018
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

An inner shaft of a steering device and an outer shaft thereof are provided so as to be movable relative to each other via a movement mechanism along an axial line. The inner shaft includes a first abutting member and a second abutting member which are disposed along the axial line and which have different hardness. The outer shaft includes a torque transmitting portion which abuts either the first abutting member or the second abutting member only upon operation given to the movement mechanism, and which is capable of transmitting torque with either the one abutting member only. The movement mechanism includes a movement mechanism main body which is provided on the main pipe and which moves along the axial line.

First claim

What is claimed is:

1. A steering device comprising:
a main pipe formed in a cylindrical shape;
an inner shaft which is rotatably supported by the main pipe and which has one end to which a steering wheel is fastened; and
an outer shaft which partially covers the inner shaft and which is rotatable together with the inner shaft,
wherein the inner shaft and the outer shaft are provided so as to be movable relative to each other via a movement mechanism along an axial line,
wherein the inner shaft comprises a first abutting member and a second abutting member which are disposed along the axial line and which have different hardness,
wherein the outer shaft comprises a torque transmitting portion which abuts either the first abutting member or the second abutting member only upon operation given to the movement mechanism, and which is capable of transmitting torque with either the one abutting member only, and
wherein the movement mechanism comprises a movement mechanism main body which is provided on the main pipe and which moves along the axial line.

2. The steering device according to claim 1 , wherein the movement mechanism comprises a lock mechanism that prevents the relative movement of the inner shaft and the outer shaft in a direction of the axial line when the torque transmitting portion abuts either the first abutting member or the second abutting member.

3. The steering device according to claim 1 ,
wherein an elongated hole opened in an elongated circular shape along the axial line is formed in the main pipe,
wherein the movement mechanism further comprises a coupling member which is provided on the movement mechanism main body and which is coupled to the outer shaft, and
wherein the coupling member passes completely through the elongated hole.

Assignees

• Yamada Mfg Co Ltd

Inventors

• Sekiguchi Toru

Classifications

• B62D1/185 Primary

  adjustable by axial displacement, e.g. telescopically (B62D1/183, B62D1/187, B62D1/19 take precedence) · CPC title

• F16F1/373

  characterised by having a particular shape {(F16F9/58 takes precedence)} · CPC title

• B62D1/184

  Mechanisms for locking columns at selected positions · CPC title

• B62D1/16 Primary

  Steering columns · CPC title

• B62D7/224

  acting between the steering wheel and the steering gear, e.g. on the steering column · CPC title