Dual on-center column lock mechanism
First Claim
1. A steering column assembly for a vehicle, said assembly comprising:
- a mounting bracket configured for attachment to the vehicle;
a column jacket coupled to said mounting bracket and longitudinally moveable along a longitudinal axis relative to said mounting bracket;
a compression bracket mounted to said column jacket and defining a telescope slot having a plurality of telescope slot teeth extending along said longitudinal axis;
a shaft coupled to said column jacket and extending along a shaft axis intersecting said column jacket and transverse to said longitudinal axis with said shaft rotatable between a lock position and a release position;
a pawl coupled to said shaft for engagement with said telescope slot teeth; and
a transverse cam mechanism coupled to said shaft for moving said pawl transverse to said shaft axis into interlocking engagement with said telescope slot teeth in response to rotation of said shaft into said lock position to prevent said longitudinal movement of said column jacket and out of interlocking engagement with said telescope slot teeth in response to rotation of said shaft into said release position to permit said longitudinal movement of said column jacket;
wherein said transverse cam mechanism includes a head portion mounted on said shaft and defining a cam profile, and a block disposed between said head portion and said compression bracket and engaging said cam profile of said head portion.
9 Assignments
0 Petitions
Accused Products
Abstract
An adjustable steering column assembly includes a column jacket extending along a longitudinal axis. The column jacket includes a compression bracket mounted thereto, and is supported by a mounting bracket. A pawl engages a telescope slot defined by the compression bracket in interlocking engagement to mechanically lock the longitudinal position of the column jacket relative to the mounting bracket. A transverse cam mechanism moves the pawl generally vertically into and out of engagement with the telescope slot. An axial cam mechanism compresses the compression bracket against the mounting bracket. The transverse cam mechanism and the axial cam mechanism are operated by shaft extending along a shaft axis intersecting the column jacket. The transverse cam mechanism and the axial cam mechanism each include first and second cam mechanism disposed on opposing sides of the column jacket and simultaneously operable by a lever.
45 Citations
23 Claims
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1. A steering column assembly for a vehicle, said assembly comprising:
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a mounting bracket configured for attachment to the vehicle; a column jacket coupled to said mounting bracket and longitudinally moveable along a longitudinal axis relative to said mounting bracket; a compression bracket mounted to said column jacket and defining a telescope slot having a plurality of telescope slot teeth extending along said longitudinal axis; a shaft coupled to said column jacket and extending along a shaft axis intersecting said column jacket and transverse to said longitudinal axis with said shaft rotatable between a lock position and a release position; a pawl coupled to said shaft for engagement with said telescope slot teeth; and a transverse cam mechanism coupled to said shaft for moving said pawl transverse to said shaft axis into interlocking engagement with said telescope slot teeth in response to rotation of said shaft into said lock position to prevent said longitudinal movement of said column jacket and out of interlocking engagement with said telescope slot teeth in response to rotation of said shaft into said release position to permit said longitudinal movement of said column jacket; wherein said transverse cam mechanism includes a head portion mounted on said shaft and defining a cam profile, and a block disposed between said head portion and said compression bracket and engaging said cam profile of said head portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A steering column assembly for a vehicle, said assembly comprising:
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a mounting bracket configured for attachment to the vehicle; a column jacket coupled to said mounting bracket and longitudinally moveable along a longitudinal axis relative to said mounting bracket; a compression bracket mounted to said column jacket; a first shaft coupled to said column jacket and extending along a shaft axis intersecting said column jacket and transverse to said longitudinal axis and a second shaft coupled to said column jacket and extending along said shaft axis and disposed on an opposing side of said column jacket with said first shaft and said second shaft simultaneously rotatable between a lock position and a release position; a first pawl coupled to said first shaft for engagement with said telescope slot teeth of said first telescope slot and a second pawl coupled to said second shaft for engagement with said telescope slot teeth of said second telescope slot; a first transverse cam mechanism coupled to said first shaft for moving said first pawl transverse to said shaft axis in response to rotation of said first shaft, said first transverse cam mechanism including a first head portion mounted on said first shaft and defining a first cam profile, and a first block disposed between said first head portion and said compression bracket and engaging said first cam profile; a second transverse cam mechanism coupled to said second shaft for moving said second pawl transverse to said shaft axis in response to rotation of said second shaft, said second transverse cam mechanism including a second head portion mounted on said second shaft and defining a second cam profile, and a second block disposed between said second head portion and said compression bracket and engaging said second cam profile; and a lever attached to said first shaft and said second shaft for simultaneously rotating said first shaft and said second shaft between said lock position and said release position to simultaneously operate said first transverse cam and said second transverse cam. - View Dependent Claims (21, 22, 23)
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Specification