Patent ID: 8607663

Claim:
A shift knob of a driving mode switching device allowing switching of a plurality of driving modes by rotation of a lever member having a holding unit on an upper end of the lever member, wherein a first curved surface, on a rear side of the holding unit in a vehicle front-rear direction, or on an upper side of the holding unit, a distance of the first curved surface from an axis of the lever member increases as a distance of the first curved surface to a bottom surface of the holding unit decreases, and a bulging portion, a curvature surface, and a radially-expanding portion are formed from a front side of the holding unit in the vehicle front-rear direction to lateral sides of the holding unit, or from a lower side of the holding unit in the vehicle vertical direction to lateral sides of the holding unit when the holding unit is disposed on the instrument panel, the bulging portion curving outward in a radial direction from the axis, the curvature surface curving inward in the radial direction and disposed at a position lower than the bulging portion in the direction of the axis, the radially-expanding portion being disposed at a position lower than the curvature surface in the direction of the axis, a distance of a surface of the radially-expanding portion from the axis increases as a distance of the surface of the radially-expanding portion to a bottom surface of the holding unit decreases.