Abstract: A steering device includes a fixed bracket, a movable bracket, a friction plate, a first friction washer, a pressing plate, engagement units, a second friction washer, and a fastening tool. The friction plate is attached to face, with an appropriate gap, at least one of both fixed side portions of the fixed bracket. The first washer is inserted between the fixed side portion and the friction plate. The pressing plate is attached to an outer surface of the friction plate. The engagement unit causes the pressing plate to be detachably attached and be immovable at least in a vertical direction. The second friction washer is clamped between the pressing plate and the friction plate. The fixed bracket, the friction plate, the first friction washer, the second friction washer, and the pressing plate are connected by penetrating therethrough a lock bolt of the fastening tool.

Abstract: A steering apparatus includes a fixed bracket, a fastener, a primary cam that rotates with a rotation operation of the fastener, and a secondary cam that is non-rotatably attached to a fixed side portion and is in contact with the primary cam. Cam operating portions each including an inclined surface portion, a high level surface, and a contact protrusion are formed at regular intervals along a circumferential direction on a base flat surface of each of the primary cam and the secondary cam, and the inclined surface portion is constituted by a low gradually inclined surface, a middle sharply inclined surface, and a high gradually inclined surface arranged in this order from the base flat surface toward the high level surface.

Abstract: A steering apparatus of the present invention includes a fixed bracket, a fastener, a primary cam that rotates with a rotation operation of the fastener, and a secondary cam that is non-rotatably attached to a fixed side portion and is in contact with the primary cam. Cam operating portions each including an inclined surface portion, a high level surface, and a contact protrusion are formed at regular intervals along a circumferential direction on a base flat surface of each of the primary cam and the secondary cam, and the inclined surface portion is constituted by a low gradually inclined surface, a middle sharply inclined surface, and a high gradually inclined surface arranged in this order from the base flat surface toward the high level surface. With the arrangement, operability of an operating lever in locking and unlocking is improved.

Abstract: The present invention provides a steering apparatus that can provide good operation feeling in telescopic adjustment and can have a very simple configuration. The steering apparatus has a fixed bracket, a movable bracket, a sliding shaft support member, and a tightening tool. The sliding shaft support member is constituted by a main sliding unit made of an inelastic resin and buffer portions made of a rubber or an elastic resin. The buffer portions are fixedly attached to both sides of the main sliding unit in the front-rear direction, the upper and lower surfaces of the main sliding unit are in a state of sliding contact with both guide edges of a long hole for telescopic adjustment of the movable bracket, and the buffer portions can abut only on both stop end edges and do not come into contact with the two guide edges.

Abstract: An operation lever includes a lever main body A having a tapered insertion portion which has locking portions and in which the size in the up-down direction decreases gradually and an operation knob having a tapered insertion hole in which a size in the up-down direction decreases gradually from an opening toward a deep end wall surface. The insertion hole includes tapered reference surface facing each other in the up-down direction. Grooves are formed from the opening and along the deep end wall surface so as to protrude outward from the respective tapered reference surfaces and the inner side surfaces in the insertion hole of the operation knob. The insertion portion is inserted into the insertion hole and the locking portions bite in outward through the respective tapered reference surfaces.

Abstract: The present invention provides a steering apparatus that can provide good operation feeling in telescopic adjustment and can have a very simple configuration. The steering apparatus has a fixed bracket, a movable bracket, a sliding shaft support member, and a tightening tool. The sliding shaft support member is constituted by a main sliding unit made of an inelastic resin and buffer portions made of a rubber or an elastic resin. The buffer portions are fixedly attached to both sides of the main sliding unit in the front-rear direction, the upper and lower surfaces of the main sliding unit are in a state of sliding contact with both guide edges of a long hole for telescopic adjustment of the movable bracket, and the buffer portions can abut only on both stop end edges and do not come into contact with the two guide edges.

Abstract: To provide a fixing device for a steering device capable of tilt adjustment and having a very simple cam structure. The fixing device includes a fixed bracket; a movable bracket; a lock bolt that passes through the fixed bracket and the movable bracket; a main drive cam, through which the lock bolt passes, and that is fitted to rotate freely; and a driven cam, through which the lock bolt passes, and that is fitted unrotatably. Cam operation parts are formed on the main drive cam and the driven cam respectively. Cam operation parts on both sides are always in contact with the other side while the main drive cam and the driven cam separate and come close in the axial direction, and the diameter of the driven cam is larger than the diameter of the main drive cam.

Abstract: To provide a steering device from which good operation feeling can be obtained in tilt and telescoping adjustments, and whose configuration is very simple. The cylindrical part formed in a pair of shock absorber members is inserted in the two end openings of an axial through hole formed in the axial direction of a collar member, flanges of the shock absorber members are slidably inserted into adjustment elongated holes formed on both sides in the width direction of a movable bracket, the movable bracket is arranged between fixed support side plates formed on both sides in the width direction of a fixed bracket. A bolt is passed through adjustment holes formed in the fixed support side plates, the adjustment elongated holes, the collar member, and the shock absorber members to be freely tightened as required.

Abstract: To provide a steering device from which good operation feeling can be obtained in tilt and telescoping adjustments, and whose configuration is very simple. The cylindrical part formed in a pair of shock absorber members is inserted in the two end openings of an axial through hole formed in the axial direction of a collar member, flanges of the shock absorber members are slidably inserted into adjustment elongated holes formed on both sides in the width direction of a movable bracket, the movable bracket is arranged between fixed support side plates formed on both sides in the width direction of a fixed bracket. A bolt is passed through adjustment holes formed in the fixed support side plates, the adjustment elongated holes, the collar member, and the shock absorber members to be freely tightened as required.

Abstract: To provide a fixing device for a steering device capable of tilt adjustment and having a very simple cam structure. The fixing device includes a fixed bracket; a movable bracket; a lock bolt that passes through the fixed bracket and the movable bracket; a main drive cam, through which the lockbolt passes, and that is fitted to rotate freely; and a driven cam, through which the lock bolt passes, and that is fitted unrotatably. Cam operation parts are formed on the main drive cam and the driven cam respectively. Cam operation parts on both sides are always in contact with the other side while the main drive cam and the driven cam separate and come close in the axial direction, and the diameter of the driven cam is larger than the diameter of the main drive cam.