Joints and connections – Rotarily connected – differentially translatable members,... – Externally threaded actuator
Patent
1998-08-10
1999-09-28
Reichard, Lynne
Joints and connections
Rotarily connected, differentially translatable members,...
Externally threaded actuator
280775, F16B 706
Patent
active
059576138
ABSTRACT:
A turnbuckle actuator between a mast jacket of a motor vehicle steering column and a tilt housing pivotally supported on the mast jacket. The turnbuckle actuator includes a first turnbuckle yoke, a second turnbuckle yoke, and a turnbuckle shaft. The first and the second turnbuckle yokes are supported on respective ones of the mast jacket and the tilt housing for rotation about parallel lateral centerlines of the mast jacket and the tilt housing. The first turnbuckle yoke has a transverse bore therein eccentric relative to the lateral centerline of the mast jacket. The second turnbuckle yoke has a transverse bore therein eccentric relative to the lateral centerline of the tilt housing. Opposite hand screw threads on the turnbuckle shaft mesh with matching screw threads in the transverse bores. Rotation of the turnbuckle shaft thrusts the turnbuckle yokes in opposite directions to pivot the tilt housing. The thrust of the turnbuckle shaft also pivots the first and the second turnbuckle yokes in opposite directions about the lateral centerlines of the mast jacket and the tilt housing to eliminate lash by tipping the transverse bores endwise and wedging the screw threads therein against the screw threads on the turnbuckle shaft.
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Bochna David E.
Ellis Dean L.
General Motors Corporation
Reichard Lynne
LandOfFree
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