Abstract: A steering device according to an aspect of the present disclosure includes a column unit, a front bracket, a rear bracket, and a lock mechanism. The lock mechanism includes a rod supported by the column unit so as to be movable in a vertical direction in tilt guide holes in an unlocked state, and an operation portion that is fixed to a first side end portion of a rod in a right-left direction and that is used to operate of the rod. The first through-hole includes a first straight portion and a first tapered portion. The second through-hole includes a second straight portion and a second tapered portion.

Abstract: A steering device according to an aspect of the present disclosure includes a column unit, a front bracket, a rear bracket, and a lock mechanism. The lock mechanism includes a rod supported by the column unit so as to be movable in a vertical direction in tilt guide holes in an unlocked state, and an operation portion that is fixed to a first side end portion of a rod in a right-left direction and that is used to operate of the rod. The first through-hole includes a first straight portion and a first tapered portion. The second through-hole includes a second straight portion and a second tapered portion.

Abstract: In a steering device according to an aspect of the present disclosure, a holding portion of a driven cam that is held in a tilt guide hole includes a lock contact portion that faces one side in a bolt circumferential direction and comes into contact with an inner peripheral edge of the tilt guide hole in a locked state to restrict the driven cam from rotating toward the one side in the bolt circumferential direction with respect to a rear side plate portion and a release contact portion that faces the other side in the bolt circumferential direction and comes into contact with the inner peripheral edge of the tilt guide hole in an unlocked state to restrict the driven cam from rotating toward the other side in the bolt circumferential direction with respect to the rear side plate portion.

Abstract: In a steering device according to an aspect of the present disclosure, a driven cam includes a lock position restriction surface with which a cam portion of a drive cam engages in a locked state and a release position restriction surface that is provided to be separated front the lock position restriction surface in a bolt circumferential direction and that engages with the drive cam in the bolt circumferential direction in an unlocked state. The cam portion includes a sliding surface that faces the driven cam in the unlocked state and a flank surface that faces the release position restriction surface in the bolt circumferential direction. The angle of the flank surface with respect to the bolt circumferential direction is smaller than the angle of the release position restriction surface with respect to the bolt circumferential direction.

Abstract: In a steering device according to an aspect of the present disclosure, a holding portion of a driven cam that is held in a tilt guide hole includes a lock contact portion that faces one side in a bolt circumferential direction and comes into contact with an inner peripheral edge of the tilt guide hole in a locked state to restrict the driven cam from rotating toward the one side in the bolt circumferential direction with respect to a rear side plate portion and a release contact portion that faces the other side in the bolt circumferential direction and comes into contact with the inner peripheral edge of the tilt guide hole in an unlocked state to restrict the driven cam from rotating toward the other side in the bolt circumferential direction with respect to the rear side plate portion.

Abstract: In a steering device according to an aspect of the present disclosure, a driven cam includes a lock position restriction surface with which a cam portion of a drive cam engages in a locked state and a release position restriction surface that is provided to be separated front the lock position restriction surface in a bolt circumferential direction and that engages with the drive cam in the bolt circumferential direction in an unlocked state. The cam portion includes a sliding surface that faces the driven cam in the unlocked state and a flank surface that faces the release position restriction surface in the bolt circumferential direction. The angle of the flank surface with respect to the bolt circumferential direction is smaller than the angle of the release position restriction surface with respect to the bolt circumferential direction.

Abstract: The object of the present invention is realized by providing a steering device having: a column pipe for supporting a shaft; an outer column; a fixing bracket, and a tightening tool, wherein the outer column includes an embracing main body portion that holds the column pipe so that the column pipe can move in a front-rear direction, and clamp portions for widening and narrowing a slit formed in the embracing main body portion in a width direction, and an inner peripheral recessed portion is formed on an inner peripheral side of the embracing main body portion opposite the slit so as to extend from a rear end of the embracing main body.

Abstract: The object of the present invention is realized by providing a steering device having: a column pipe for supporting a shaft; an outer column; a fixing bracket, and a tightening tool, wherein the outer column includes an embracing main body portion that holds the column pipe so that the column pipe can move in a front-rear direction, and clamp portions for widening and narrowing a slit formed in the embracing main body portion in a width direction, and an inner peripheral recessed portion is formed on an inner peripheral side of the embracing main body portion opposite the slit so as to extend from a rear end of the embracing main body.