Telescopic helm

Details Telescopic helm Telescopic helm

1989-01-23

1990-03-20

Brittain, James R.

Machine element or mechanism

Control lever and linkage systems

Hand operated

74531, B62D 118

Patent

active

049090950

ABSTRACT:
A telescopic helm (10) having a steering drive shaft (12) and a steering wheel shaft (14) separated by a collet (32) to axially adjust the position of a steering wheel hub (18) of a vehicle. The steering wheel shaft (14) has an inner wedged surface (20) and the collet (32) has an outer wedged surface (22) which, when in contact with each other, produce a radially, inwardly directed force that grips the steering drive shaft (12) preventing axial movement of the steering wheel shaft (14). When the wedged surfaces (20,22) are moved out of contact with each other, the radially inwardly directed force is relieved allowing the steering wheel shaft (14) to move axially relative to the support structure (24). The assembly is characterized by the collet (32) having fingers defining the wedged surfaces (22) for clamping engagement inwardly about the steering wheel shaft (14).

REFERENCES:
patent: 614944 (1918-11-01), Gaylor
patent: 973806 (1910-10-01), Noble
patent: 2676811 (1954-04-01), Kindley
patent: 3369925 (1968-02-01), Runkle et al.
patent: 3444753 (1969-05-01), Runkle
patent: 3962931 (1976-06-01), Moneta
patent: 4263903 (1981-04-01), Griggs
patent: 4347757 (1982-09-01), Martin
patent: 4418582 (1983-12-01), Martin
patent: 4572023 (1986-02-01), Euler
patent: 4813910 (1989-03-01), Stone

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