Abstract: A steering apparatus includes a steering shaft, a steering column rotatably supporting the steering shaft, a bracket supporting the steering column to a vehicle body, a fixing mechanism for fixing a position of the steering column and releasing the steering column, and an operation lever fitted to the fixing mechanism to switch over by a sway thereof the fixing and releasing of the steering column, the steering apparatus being thus capable of adjusting the position of the steering column, wherein the operation lever is provided with an operating portion disposed on a more rear side of a vehicle than a swaying center of the operation lever, and an extended portion extending on a more front side of the vehicle than the swaying center of the operation lever and being provided with a weight member. The configuration can prevent the fixed steering column from being released by an impact load.

Abstract: A steering apparatus 1 includes a steering shaft 2 for transferring a steering force, a steering column 3 for rotatably supporting the steering shaft 2, a vehicle body-sided bracket 4 for supporting the steering column 3 to a vehicle body, a fixing mechanism 5 for fixing a position of the steering column 3 and releasing steering column from being fixed, and an operation lever 9 fitted to the fixing mechanism 5 to switch over by a sway thereof fixing the position of the steering column 3 and releasing the steering column from being fixed, the steering apparatus 1 being thus capable of adjusting the position of the steering column, wherein the operation lever 9 is provided with an operating portion 8 disposed on a more rear side of a vehicle than a swaying center of the operation lever 9, and an extended portion 9b extending on a more front side of the vehicle than the swaying center of the operation lever 9 and being provided with a weight member 10.

Abstract: In an impact absorbing type steering column apparatus for a vehicle in which two columns are fitted to each other in such a manner that an upper column, while being moved to the front part of the vehicle with respect to a lower column, absorbs the impact energy at a secondary collision of the vehicle, a bush is fixedly fitted to at least one of the outer peripheral side of the upper column and the inner peripheral side of the lower column in the fitting portion between the two columns.

Abstract: An impact absorption type steering column apparatus for a vehicle is constructed such that a steering column is moved forwardly of the vehicle with respect to a car body sided member when a secondary collision happens. An outer peripheral surface of the steering column is fitted with a metallic ring that engages with the car body sided member to absorb impact energy while frictionally sliding on the steering column moving forwardly of the vehicle, when the secondary collision happens.

Abstract: An automotive steering column apparatus has an inner column rotatably supporting a steering shaft, an outer column holding the inner column while rotatably embracing the inner column, a vehicle body side bracket having a vehicle body mount portion which can be mounted on a vehicle body and a pair of left and right facing flat plate portions which extend substantially vertically and disposed in such a manner as to surround the outer column, a clamping mechanism for changing a width of the pair of facing flat plate portions and changing a width of an inner circumferential surface of the outer column in connection with a change in the width of the pair of facing flat portions, and a shear ring mounted on at least either the inner circumferential surface of the outer column or an outer circumferential surface of the inner column. A shear permissive projection is provided on the shear ring.

Abstract: A vehicular steering column system includes an outer column and an inner column which fits slidably in the outer column, whereby a relative position between the inner column and the outer column is adjusted by expanding and contracting the diameter of an inner circumferential surface of the outer column. An iron bush is provided between the inner circumferential surface of the outer column and an outer circumferential surface of the inner column in such a manner as to fit in or on at least the inner circumferential surface of the outer column or the outer circumferential surface of the inner column.

Abstract: An electric power steering apparatus includes a steering shaft having its upper end to which a steering wheel is fitted, a steering column rotatably supporting the steering shaft, tilting about a pivot as a fulcrum and moving telescopically together the steering shaft in axis-directions, an electric assist motor unit attached to the steering column and serving for a steering assist of the steering wheel, and a tilt/telescopic adjustment means for fixing the steering column in a predetermined angular position and fixing the steering column in a predetermined axis-directional position, wherein the pivot is disposed between the electric motor unit and the tilt/telescopic adjustment means.

Abstract: A steering apparatus excellent in the assembling efficiency and capable of controlling trouble such as loosening. As a supporting portion 13s and a shank portion 13k are integrated, even in a case where prying or the like with respect to a bracket portion 12a has occurred, there is no possibility of the occurrence of the loosening or the like of the bolt, which has been a problem in the conventional construction. Hence, it is possible to ensure higher reliability.

Abstract: A steering system for supporting a steering shaft to which a steering wheel attaches so as to be adjustable of axial displacement, has an inner column for rotatably supporting the steering shaft, an outer jacket taking, when pressed in a facing direction, a first state in which an outer circumferential surface of the inner column is held so as to disable the adjustment of the axial displacement or a second state in which the outer circumferential surface of the inner column is held so as to enable the adjustment of the axial displacement, a bracket portion for fixing the outer jacket to a vehicle body, and a fixing member for connecting the outer jacket with the bracket portion. When the outer jacket is shifted from the second state to the first state, the inner column receives pressures by the outer jacket in directions different from at least the facing direction.

Abstract: An impact absorption type steering column apparatus for a vehicle is constructed such that a steering column is moved forwardly of the vehicle with respect to a car body sided member when a secondary collision happens. An outer peripheral surface of the steering column is fitted with a metallic ring that engages with the car body sided member to absorb impact energy while frictionally sliding on the steering column moving forwardly of the vehicle, when the secondary collision happens.

Abstract: A vehicular steering column system includes an outer column and an inner column which fits slidably in the outer column, whereby a relative position between the inner column and the outer column is adjusted by expanding and contracting the diameter of an inner circumferential surface of the outer column. An iron bush is provided between the inner circumferential surface of the outer column and an outer circumferential surface of the inner column in such a manner as to fit in or on at least the inner circumferential surface of the outer column or the outer circumferential surface of the inner column.

Abstract: In an impact absorbing type steering column apparatus for a vehicle in which two columns are fitted to each other in such a manner that an upper column; while being moved to the front part of the vehicle with respect to a lower column, absorbs the impact energy at a secondary collision of the vehicle, a bush is fixedly fitted to at least one of the outer peripheral side of the upper column and the inner peripheral side of the lower column in the fitting portion between the two columns.

Abstract: An automotive steering column apparatus has an inner column rotatably supporting a steering shaft, an outer column holding the inner column while rotatably embracing the inner column, a vehicle body side bracket having a vehicle body mount portion which can be mounted on a vehicle body and a pair of left and right facing flat plate portions which extend substantially vertically and disposed in such a manner as to surround the outer column, a clamping mechanism for changing a width of the pair of facing flat plate portions and changing a width of an inner circumferential surface of the outer column in connection with a change in the width of the pair of facing flat portions, and a shear ring mounted on at least either the inner circumferential surface of the outer column or an outer circumferential surface of the inner column. A shear permissive projection is provided on the shear ring.

Abstract: An electric power steering apparatus includes a steering shaft having its upper end to which a steering wheel is fitted, a steering column rotatably supporting the steering shaft, tilting about a pivot as a fulcrum and moving telescopically together the steering shaft in axis-directions, an electric assist motor unit attached to the steering column and serving for a steering assist of the steering wheel, and a tilt/telescopic adjustment means for fixing the steering column in a predetermined angular position and fixing the steering column in a predetermined axis-directional position, wherein the pivot is disposed between the electric motor unit and the tilt/telescopic adjustment means.

Abstract: In an impact absorbing type steering column apparatus for an automotive vehicle in which an upper column is fitted to a lower column fixed to a car body so as to absorb an impact energy upon a secondary collision while moving the upper column along the lower column towards a front side of the automotive vehicle, a low-friction material treatment is effected on one or both of slide surfaces of fitting portions of the two columns, or a sleeve subjected to the low-friction material treatment is interposed between the fitting portions thereof.

Abstract: A coupling structure of a variable length shaft, comprises a pipe member having an end formed with a plurality of slits elongated in the axial direction to be capable of expanding and diminishing in diameter, an intermediate shaft spline-fitted in the end of the pipe member, and a ring member fitted on an outer periphery of the end of the pipe member, the intermediate shaft being fastened by the end of the pipe member. A holder is releasably attached to an end of the ring member to expand a diameter thereof and thereby reduce a slide frictional resistance of the pipe member against the intermediate shaft. When the holder is released, the ring member diminishes in diameter, and a fastening force of the pipe member on the intermediate shaft is increased.

Abstract: An apparatus for supporting a steering column has a cross member spanned over two right-and-left walls of a car body at a portion just anterior to a driver's seat, a support bracket integrally fixedly connected to a portion, aligned with the driver's seat, of an intermediate portion of the cross member, a supported bracket fixedly connected to an intermediate portion of the steering column, and a connecting member for connecting the support bracket and the supported bracket to each other with no intermediary of other brackets.

Abstract: A steering joint device for a car comprises a first universal joint coupled to a steering shaft, a second universal joint connected to the steering gear device side, and an anti-vibration device connected between the first universal joint and the second universal joint.

Abstract: A steering intermediate shaft has an inner shaft member and an outer tube member so engaged with each other as to be capable of transmitting rotation and to be slidable in an axial direction. The outer tube member includes slits so formed at one end as to extend in the axial direction. An annular fastening member is provided at a portion of the outer tube member formed with the slits to exert a fastening action inwards in a radial direction. The fastening member includes a disengagement preventing member for preventing the outer tube member from disengaging from the inner shaft member against an axial force within a predetermined value by engaging with the inner shaft member.

Abstract: A column mounting assembly for a tilt-type steering device comprises a supporting bracket with a pair of vertical plate portions to be secured to an automobile body, tilt adjusting bolt integrated with a steering column disposed between the vertical plate portions, and held by the vertical plate portions raisably and lowerably, an operation lever rotatably operable between a first angle position and a second angle position, and tilt adjusting for fastening the tilt adjusting bolt to the bracket when the operation lever is located in the first angle position, and unfastening the tilt adjusting bolt to make the tilt adjusting bolt raisable and lowerable when the operation lever is located in the second angle position. A serration engagement section is provided between the operation lever and adjusting nut to transmit rotation of the operation lever to the adjusting nut.