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US 11,554,806 B2Granted
Steering device
AssigneeHitachi Astemo, Ltd.
InventorKazuya Terashima
Life of this patent
Estimating the term…
Abstract
A steering device of the present invention has a steered shaft rotation stopper (100) having a contact member (101) and a forcing member (102). The forcing member (102) forces at least either one of a steered shaft (6) or the contact member (101) in a direction in which the steered shaft (6) and the contact member (101) push against each other. In a state in which the contact member (101) contacts a contact portion (6D) of the steered shaft (6), the contact member (101) stops a rotation of the steered shaft (6).
Claims24
A steering device comprising:
- a steered shaft housing having a steered shaft accommodating section and a steered shaft rotation stopper holder, wherein the steered shaft accommodating section has a tubular shape;
- a steered shaft having a steered shaft main body and a contact portion, wherein at least a part of the steered shaft is accommodated in the steered shaft accommodating section, the steered shaft main body has a rod-shape, and the contact portion is provided at an outer peripheral side of the steered shaft main body;
- an actuator structured to move the steered shaft with respect to the steered shaft housing in a longitudinal direction of the steered shaft;
- and
- a steered shaft rotation stopper having a contact member and a forcing member, wherein the contact member and the forcing member are provided at the steered shaft rotation stopper holder, and wherein
- when defining an axial line that passes through a center of the steered shaft main body on a cross section orthogonal to the longitudinal direction of the steered shaft and that is parallel to the longitudinal direction of the steered shaft as a reference axial line,
- the forcing member forces at least either one of the steered shaft or the contact member in a direction in which the steered shaft and the contact member push against each other, and
- the contact member is provided so as to be able to contact the contact portion, and in a state in which the contact member contacts the contact portion, the contact member stops a rotation of the steered shaft relative to the steered shaft housing about the reference axial line as an axis of the rotation,
- wherein the forcing member is a spring, and
- wherein the contact member and the contact portion are set so as to overlap each other in a radial direction with the reference axial line being a center of the radial direction such that their overlap amount is greater than a stroke length from compression to expansion of the forcing member.
7 more elements
A steering device comprising:
- a steered shaft housing having a steered shaft accommodating section and a steered shaft rotation stopper holder, wherein the steered shaft accommodating section has a tubular shape;
- a steered shaft having a steered shaft main body and a contact portion, wherein at least a part of the steered shaft is accommodated in the steered shaft accommodating section, the steered shaft main body has a rod-shape, and the contact portion is provided at an outer peripheral side of the steered shaft main body;
- an actuator configured to move the steered shaft with respect to the steered shaft housing in a longitudinal direction of the steered shaft;
- and
- a steered shaft rotation stopper having a contact member and a forcing member, wherein the contact member and the forcing member are provided at the steered shaft rotation stopper holder, and wherein
- when defining an axial line that passes through a center of the steered shaft main body on a cross section orthogonal to the longitudinal direction of the steered shaft and that is parallel to the longitudinal direction of the steered shaft as a reference axial line,
- the forcing member forces at least either one of the steered shaft or the contact member in a direction in which the steered shaft and the contact member push against each other, and
- the contact member is provided so as to be able to contact the contact portion, and in a state in which the contact member contacts the contact portion, the contact member stops a rotation of the steered shaft relative to the steered shaft housing about the reference axial line as an axis of the rotation,
- wherein the contact member is provided such that the contact member is rotatable with respect to the steered shaft, and
- wherein the steered shaft rotation stopper has, between the forcing member and the contact member, a low friction member whose coefficient of friction is smaller than those of the forcing member and the contact member.
7 more elements
Dependencies are inferred from the claim text.