Patent ID: 9545943
Date: 2017-01-17
CPC Classifications: B62D

Claim:
1. A steering device comprising: a steering member; a steering shaft which is expandable and contractible in an axial direction and to one end of which the steering member is coupled; a column jacket including an upper jacket adjacent to the steering member and a lower jacket on the opposite side of the upper jacket from the steering member, the column jacket being expandable and contractible in the axial direction together with the steering shaft through movement of the upper jacket with respect to the lower jacket in the axial direction; a bracket fixed to a vehicle body to support the lower jacket; a rotary shaft supported by the bracket to extend in a direction that is orthogonal to the axial direction, the rotary shaft being configured to rotate in accordance with an operation of an operation member attached to one end of the rotary shaft; a plurality of engaged teeth fixed to the upper jacket, the engaged teeth being arranged side by side in the axial direction; a lock member supported by the rotary shaft and having an outer peripheral surface formed with an engaging tooth that meshes with the engaged teeth in order to lock the upper jacket in position in the axial direction, the lock member being relatively rotatable with respect to the rotary shaft between a meshing position at which the engaging tooth and the engaged teeth mesh with each other and a disengaged position at which meshing between the engaging tooth and the engaged teeth is canceled; a support shaft provided separately from the rotary shaft to extend in parallel with the rotary shaft, the support shaft being supported by the lower jacket at a position farther away from the engaged teeth than the rotary shaft; a first rotary member supported by the rotary shaft so as to rotate in synchronization with the rotary shaft; a second rotary member supported by the support shaft and configured to rotate about the support shaft in conjunction with rotation of the first rotary member to abut against the lock member to move the lock member to the disengaged position; and an urging member supported by the second rotary member to urge the lock member toward the meshing position, wherein the first rotary member has a cylindrical surface that extends along a circumferential direction of an outer peripheral surface of the rotary shaft; and the urging member contacts the cylindrical surface from a direction of a normal to the cylindrical surface.