A steering column device includes: a steering shaft; a steering column; a vehicle body mounting bracket; one of the pair of the clamping pieces including a slit which has a substantially U-shape, and which surrounds one of a front side and a rear side of the tilt hole, and an upper side and a lower side of the tilt hole, and a tongue piece portion which is surrounded by the slit, the tilt hole being positioned at a tip end side of the tongue piece portion, and at least the one of the clamping pieces including the slit, including a reinforcement portion which surrounds an outside of the slit, and which is integrally provided with the one of the clamping pieces including the slit.

According to the present embodiments, locking and unlocking can be smoothly performed even when gears for fixing a steering column during a telescoping operation of the steering column are not properly engaged, a collapse motion for absorbing impact can be smoothly performed even when a vehicle collision occurs in a state in which the gears are not properly engaged, impact is absorbed at the minimum and maximum of strokes so as to enable the prevention of noise generation during the telescoping operation, and the number of components can be reduced and assembly process can be simplified.

On the outer peripheral surface of a part of a tilt operation shaft between sidewalls of a steering column, a pair of left and right protrusions are disposed opposite to each other which protrude outward in the radial direction. The pair of protrusions include mutually facing side surfaces formed as slanted parts defining a truncated V shape in a plan view such that the slanted parts get closer to each other as extending in the circumferential direction of the tilt operation shaft. When the tilt operation shaft is rotated, parts of a spring come into contact with the slanted parts of the protrusions and become elastically deformed, thereby pulling hold end parts of the spring out of tilt holes in wall surface parts of a tilt bracket.

On the outer peripheral surface of a part of a tilt operation shaft between sidewalls of a steering column, a pair of left and right protrusions are disposed opposite to each other which protrude outward in the radial direction. The pair of protrusions include mutually facing side surfaces formed as slanted parts defining a truncated V shape in a plan view such that the slanted parts get closer to each other as extending in the circumferential direction of the tilt operation shaft. When the tilt operation shaft is rotated, parts of a spring come into contact with the slanted parts of the protrusions and become elastically deformed, thereby pulling hold end parts of the spring out of tilt holes in wall surface parts of a tilt bracket.

A steering column may include a casing unit with a steering spindle that is rotatable about a longitudinal axis and a bracket unit that is fixable on the motor vehicle. The casing unit may be secured to the bracket unit such that the casing unit is adjustable in at least one direction. The casing unit may be fixable in different positions by a fixing mechanism. The fixing mechanism may have a fixing element that is rotatable about a pivot axis. The casing unit may be fixed in position in or on the bracket unit in a locked position of the fixing element, and adjusted relative to the bracket unit in a released position of the fixing element. A movably mounted stop body may interact with the fixing element and, in the released position of the fixing element, is disposed in a first position where it limits adjustability of the casing unit relative to the bracket unit. In the locked position of the fixing element, the stop body may be disposed in a second position where it disengages with the casing unit. The stop body may include a stop face, the spacing of which from the pivot axis is greater in the released position than in the locked position.

A steering column may include a casing unit with a steering spindle that is rotatable about a longitudinal axis and a bracket unit that is fixable on the motor vehicle. The casing unit may be secured to the bracket unit such that the casing unit is adjustable in at least one direction. The casing unit may be fixable in different positions by a fixing mechanism. The fixing mechanism may have a fixing element that is rotatable about a pivot axis. The casing unit may be fixed in position in or on the bracket unit in a locked position of the fixing element, and adjusted relative to the bracket unit in a released position of the fixing element. A movably mounted stop body may interact with the fixing element and, in the released position of the fixing element, is disposed in a first position where it limits adjustability of the casing unit relative to the bracket unit. In the locked position of the fixing element, the stop body may be disposed in a second position where it disengages with the casing unit. The stop body may include a stop face, the spacing of which from the pivot axis is greater in the released position than in the locked position.

An energy absorption module subassembly for a steering column assembly comprising; an energy absorption device; and a retainer assembled with the energy absorption device configured for i) installation into at least a portion of a column housing of the steering column assembly at a first location; ii) supportively carrying the energy absorption device at least partially within the retainer; and enabling the retainer to at least partially deform in response to a load occasioned during an impact collapse stroke of an inner column tube of the steering column assembly that forces the retainer to translate in a forward direction to a second location that is forward in a vehicle relative to the first location.

An energy absorption module subassembly for a steering column assembly comprising; an energy absorption device; and a retainer assembled with the energy absorption device configured for i) installation into at least a portion of a column housing of the steering column assembly at a first location; ii) supportively carrying the energy absorption device at least partially within the retainer; and enabling the retainer to at least partially deform in response to a load occasioned during an impact collapse stroke of an inner column tube of the steering column assembly that forces the retainer to translate in a forward direction to a second location that is forward in a vehicle relative to the first location.

Construction is achieved that makes it possible to easily determine whether or not a combination of a drive-side cam and driven-side cam is suitable. Driven-side concave grooves 47 that are depressed inward in the radial direction and extend along the axial direction are formed in the outer-circumferential surface of the driven-side cam 30a at two locations on opposite sides in the radial direction. First drive-side concave grooves 45 that are depressed inward in the radial direction and extend along the axial direction are formed in portions of the outer-circumferential surface of the drive-side cam 29a such that the phase thereof in the circumferential direction in the locked state coincides with that of the driven-side concave grooves 47, and second drive-side concave grooves 46 that are depressed inward in the radial direction and extend along the axial direction are formed in portions of the outer-circumferential surface of the drive-side cam 29a such that the phase thereof in the circumferential direction in the unlocked state coincides with that of the driven-side concave grooves 47.

Construction is achieved that makes it possible to easily determine whether or not a combination of a drive-side cam and driven-side cam is suitable. Driven-side concave grooves 47 that are depressed inward in the radial direction and extend along the axial direction are formed in the outer-circumferential surface of the driven-side cam 30a at two locations on opposite sides in the radial direction. First drive-side concave grooves 45 that are depressed inward in the radial direction and extend along the axial direction are formed in portions of the outer-circumferential surface of the drive-side cam 29a such that the phase thereof in the circumferential direction in the locked state coincides with that of the driven-side concave grooves 47, and second drive-side concave grooves 46 that are depressed inward in the radial direction and extend along the axial direction are formed in portions of the outer-circumferential surface of the drive-side cam 29a such that the phase thereof in the circumferential direction in the unlocked state coincides with that of the driven-side concave grooves 47.