Abstract: The electric steering wheel position adjustment apparatus of the present invention is constructed so as to improve the support rigidity of a portion that constitutes a steering column apparatus thereof, such that the steering shaft 2b and the steering column 5b have non-expandable construction, but are able to be displaced in the axial direction; holding holes are provided in at least two locations on the top side of the column holder 31 that supports the steering column 5b; and in each of the holding holes, a sliding plate 35, an elastic member 37 and a cover 38 are assembled such that the sliding plate 35 is elastically compressed by the elastic member 37 and pushes the outer circumferential surface of the steering column 5b.

Abstract: The electric steering wheel position adjustment apparatus of the present invention comprises: a non-expandable steering shaft 2b; a non-expandable steering column 5b; a column holder 31 that supports the steering column 5b so as to be able to move in the axial direction; a pair of left and right tilt shafts 33 that support the column holder 31 so as to be able to pivotally move around the center axis thereof; and an expandable intermediate shaft 28 that is connected to the steering shaft 2b by way of a universal joint 27b; and a tilt shafts 33 that are arranged so that the center axis thereof is orthogonal to the center axis of the steering shaft 2b. The center axis OC of the pair of left and right tilt shafts 33 is located in a range between the position OF of the center of displacement of the front-end section and the position OB of the center of displacement of the rear-end section of the universal joint 27b.

Abstract: The electric steering wheel position adjustment apparatus of the present invention is constructed so as to improve the support rigidity of a portion that constitutes a steering column apparatus thereof, such that the steering shaft 2b and the steering column 5b have non-expandable construction, but are able to be displaced in the axial direction; holding holes are provided in at least two locations on the top side of the column holder 31 that supports the steering column 5b; and in each of the holding holes, a sliding plate 35, an elastic member 37 and a cover 38 are assembled such that the sliding plate 35 is elastically compressed by the elastic member 37 and pushes the outer circumferential surface of the steering column 5b.

Abstract: In order to make it possible to stably and smoothly perform the operation of position adjustment of a steering wheel 1, the electric position adjustment apparatus for a steering wheel of the present invention is such that: a concave engaging section 19a of a moving piece 16a that moves in the forward/backward direction with an electric motor 56 as a driving source has a cylindrical concave-shaped inner-circumferential surface; a cylindrical column section 65 of a transmission member 17a that transmits the movement of the moving piece 16a to a steering column 5b is inserted into the concave engaging section 19a by way of cylindrical spacer 72 and has a cylindrical convex-shaped outer-circumferential surface; and a cylindrical spacer 72 has a cylindrical convex-shaped outer-circumferential surface and a cylindrical concave-shaped inner-circumferential surface.

Abstract: The electric steering wheel position adjustment apparatus of the present invention comprises: a non-expandable steering shaft 2b; a non-expandable steering column 5b; a column holder 31 that supports the steering column 5b so as to be able to move in the axial direction; a pair of left and right tilt shafts 33 that support the column holder 31 so as to be able to pivotally move around the center axis thereof; and an expandable intermediate shaft 28 that is connected to the steering shaft 2b by way of a universal joint 27b; and a tilt shafts 33 that are arranged so that the center axis thereof is orthogonal to the center axis of the steering shaft 2b. The center axis OC of the pair of left and right tilt shafts 33 is located in a range between the position OF of the center of displacement of the front-end section and the position OB of the center of displacement of the rear-end section of the universal joint 27b.

Abstract: In order to make it possible to stably and smoothly perform the operation of position adjustment of a steering wheel 1, the electric position adjustment apparatus for a steering wheel of the present invention is such that: a concave engaging section 19a of a moving piece 16a that moves in the forward/backward direction with an electric motor 56 as a driving source has a cylindrical concave-shaped inner-circumferential surface; a cylindrical column section 65 of a transmission member 17a that transmits the movement of the moving piece 16a to a steering column 5b is inserted into the concave engaging section 19a by way of cylindrical spacer 72 and has a cylindrical convex-shaped outer-circumferential surface; and a cylindrical spacer 72 has a cylindrical convex-shaped outer-circumferential surface and a cylindrical concave-shaped inner-circumferential surface.

Abstract: A telescopic adjusting electric power steering apparatus has a steering column 12 having an outer column 12a and an inner column 12b connected so as to be relatively extended and contracted, and rotatably supporting a steering shaft attaching a steering wheel 13 thereto; and an electric actuator 50 having one end portion attached to the outer column 12a and the other end portion attached to the inner column 12b, and extending and contracting the outer column 12a and the inner column 12b; wherein the electric actuator 50 has a rotation obstructing member 59 for obstructing relative rotation of the outer column 12a and the inner column 12b.

Abstract: There is provided a steering device which allows the telescopic position of a movable column member to be steplessly adjusted, does not require a large force to operate a control lever for clamping, and prevents the movable column member from moving toward the vehicle front when a large impact force of a secondary collision is applied. The column clamp clamps by friction using wedges, making the movable column member position steplessly adjustable. The positive column clamp having the first and second toothed members clamps in steps defined by the engagement tooth pitch, so that the engagement between the first and second toothed members may be displaced. The swing lever attached to the second toothed member slides, guided by the swing center shaft, a distance equal to the engagement displacement along the axis of the first toothed member, enabling the second toothed member to correctly engage the first toothed member.