Tilting and telescope traveling steering column arrangement

Details Tilting and telescope traveling steering column arrangement Tilting and telescope traveling steering column arrangement

1988-10-25

1990-02-13

Marmor, Charles A.

Land vehicles

Wheeled

Running gear

74493, 744248NA, 74409, 74459, B62D 118

Patent

active

049000594

ABSTRACT:
A tilting and telescope traveling steering column arrangement for an automotive vehicle. The telescope traveling mechanism of the steering column arrangement includes a pluarlity of balls which are rotatably fixed on the peripheral surface of a ring member which is fixedly mounted on a steering shaft provided with a steering wheel. The balls are positioned along an imaginary helical line on the peripheral surface of the ring member. The ring member with the balls are fitted in a sleeve formed at its inner peripheral surface with a helical groove, in such a manner that the balls are movably fitted in the helical groove. The sleeve is axially fixed to a movable bracket. The ring member is driven through a gear mechanism by an electric motor, thus axially displacing the steering shaft relative to the sleeve. The tilt mechanism of the steering column arrangement includes a tilt screw movably connecting the movable bracket and a fixed bracket fixed to a vehicle body. The tilt screw is threaded inserted in a nut structure rotatably fixed relative to the fixed bracket. The nut structure is driven through a gear mechanism by an electric motor, thereby axially displacing the tilt screw and push up the movable bracket. The nut structure is formed with a threaded hole in which a seat member is fitted in such a manner as to be brought into press contact with the peripheral surface of the tilt screw, thereby to omit a play between the tilt screw and the nut structure.

REFERENCES:
patent: 2380662 (1945-07-01), Means, Jr.
patent: 2768532 (1956-10-01), Russell
patent: 3252350 (1966-05-01), Zeigler
patent: 3396600 (1968-08-01), Zeigler et al.
patent: 4503504 (1985-03-01), Suzumura et al.
patent: 4602520 (1986-07-01), Nishikawa et al.
patent: 4691587 (1987-09-01), Farrand

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