摘要:
A telescope lock mechanism for a steering column includes a plurality of column teeth operably connected to the steering column and an adjustment lever operably connected to the steering column to allow user adjustment of a position of the steering column. A locking bolt extends from the adjustment lever, and a cam is located at the locking bolt and rotatable thereon. The cam includes one or more tab features interactive with the locking bolt such that rotation of the locking bolt engages the tab features with the locking bolt to drive rotation of the cam between a locked and unlocked position. The tab further includes a plurality of cam teeth meshable with the plurality of column teeth when the cam is in a locked position. A spring is operably connected to the cam to maintain the cam position in the locked and/or unlocked position when the cam is rotated thereto.
摘要:
A steering column assembly of a vehicle has a releasable push/pull lock device for selectably locking an adjustable steering housing and co-extending steering shaft to a stationary bracket or chassis. For driver convenience and comfort, the steering housing and shaft are together adjustable with respect to the bracket. The lock device has a toggle apparatus having a push/pull lever that may extend substantially parallel to a rotating axis of the steering shaft and move in a first direction along its length and between locked and unlocked positions. A carrier of the device connects to the toggle apparatus and moves along its length in a second direction that may be perpendicular to the first direction and as the lever moves between the locked and unlocked positions. Preferably, an indexing apparatus is generally carried between the carrier and at least one of the housing and the bracket for selecting adjustment of the steering column assembly when the device is in the unlocked position.
摘要:
A steering column assembly includes a column jacket having a jacket portion and a compression bracket attached thereto. The compression bracket includes a planar wall spaced from the column portion and a sidewall extending between the planar wall and the jacket portion. The sidewall defines a telescope slot extending along a longitudinal axis. A shaft extends through the telescope slot of the sidewall. A roller is supported on and rotatable about the shaft, and in rolling engagement with the planar wall. The roller positions the shaft within the telescope slot to prevent sliding frictional engagement between the shaft and the sidewall. The rolling coefficient of friction between the roller and the planar wall is less than the sliding coefficient of friction between the shaft and the sidewall to reduce a frictional load produced during longitudinal collapse of the steering column assembly.
摘要:
A steering column assembly includes a steering column having a selectively collapsible structure that enables said column to collapse in the event of an impact force resulting from a vehicle crash. An adaptive energy absorbing device is associated with said column and operates in a first condition to absorb a first level of energy of the collapsing column and in a second condition to absorb a second level of energy of the collapsing column. The assembly includes a telltale detection device that is associated with the adaptive energy absorbing device and is responsive to a change in condition of the energy absorbing device prior to a collapse event to provide a signal to a user of the condition of the energy absorbing device.
摘要:
An adjustable steering column assembly of a vehicle has a central lock device for selectably locking an adjustable steering housing and co-extending steering shaft to a stationary bracket or chassis. For driver convenience and comfort, the steering housing and shaft are together adjustable with respect to the bracket. The lock device has an actuator preferably having an outer member supported operably by a guide feature carried between the outer member and the bracket for movement along a first centerline traverse to the steering shaft. The bracket also supports a lever of the actuator for movement along a second centerline that intersects the first centerline. At least one roller is located in a raceway defined between the outer member and the lever. Because the raceway is angled with respect to both the first and second centerlines, motion of the lever along the second centerline is converted to motion of the second member along the traversing first centerline.
摘要:
A vehicular steering column assembly (16) comprises a support bracket (26) which is joined to an outer, non-rotating sleeve (22). A release capsule (30) is releasably joined to a mounting surface (28) of the support bracket (26) via a plurality of spherical bodies (56) whose protruding crowns (52) are seated in corresponding longitudinally-extending furrows (54) in the release capsule (30). Upon the application of sufficient force to the steering column (16), such as during a collision, the support bracket (26) is urged out of engagement with the release capsule (30) with the respective furrows (54) sliding over the crowns (52). The sliding engagement between the crowns (52) and the furrows (54) can be adjusted to establish a highly predictable and consistent release force and which is capable of increasing the frequency value for the steering column (16).
摘要:
The present invention provides an apparatus for supporting a steering wheel in a vehicle during normal vehicle handling and is breakable in response to an impact situation. The apparatus includes a member attachable to a vehicle and a steering column connected to the member for sliding movement. The apparatus also includes a capsule for connecting the member and the steering column to one another to prevent the sliding movement during normal vehicle handling. The capsule maintains the member and the steering column relative to one another, overcoming forces urging movement between the member and the steering column relative to one another, up to a first predetermined level of force. When the forces reach the first predetermined level, such as in an impact situation, the capsule breaks and releases the member and the steering column relative to one another. The apparatus of the present invention also includes an adjusting device associated with the capsule for adjusting the capsule to break in response to a second predetermined level of force lower than the first predetermined level of force.
摘要:
An apparatus for absorbing energy includes first and second steering column members connected for sliding movement. A first anvil is associated with one of the first and second steering column members and an energy absorbing member is provided having a first portion that extends around and operable to be drawn over the first anvil in response to the sliding movement between the first and second steering column members. A dead loop is formed in the energy absorbing member between its mounting location and the first anvil and is operative to enable the dead loop to straighten in response to application of an applied force prior to movement of the energy absorbing member across the first anvil.
摘要:
An adjustable steering column for a vehicle and a bushing for the adjustable steering column are provided. The adjustable steering column includes a column jacket having a lower jacket extending along a first axis and an upper jacket telescopically coupled to and extending with the lower jacket. The lower and upper shafts are configured to selectively move telescopically relative to one another for telescope adjustment of the steering column. The adjustable steering column also includes a bushing positioned between the lower jacket and the upper jacket, the bushing including a support portion extending along a length between the lower jacket and upper jacket, the support portion including a first seating area, and a roller portion positioned in the first seating area, the roller portion configured to engage at least one of an outer surface of the lower jacket and an inner surface of the upper jacket.
摘要:
A steering column assembly has an outer jacket extending, an inner jacket is slideably disposed in the outer jacket for telescoping movement relative to the outer jacket, and a sleeve disposed between the inner and outer jackets. The sleeve exerts a predetermined frictional force on the inner jacket opposing the telescoping movement. A filler formed from a liquid thermosetting composition is disposed between the sleeve and the outer jacket for securing the sleeve to the outer jacket. Furthermore, a method of forming the steering column assembly includes disposing the inner jacket into the outer jacket and disposing the sleeve between the inner and outer jackets. The method further includes inserting the liquid thermosetting composition into the outer jacket between the outer jacket and the sleeve and curing the liquid thermosetting composition to form the filler.