Adjustable steering column for motor vehicle

Details Adjustable steering column for motor vehicle Adjustable steering column for motor vehicle

1997-12-15

1999-11-09

Culbreth, Eric

Land vehicles

Wheeled

Running gear

74493, B62D 118

Patent

active

059799382

ABSTRACT:
An adjustable motor vehicle steering column including a stationary element, an adjustable element supported on the stationary element for relative linear translation, a steering wheel on the adjustable element, an infinitely adjustable primary clamp, and a secondary clamp for preventing relative linear translation of the adjustable element in a collapse direction in the event that the primary clamp is overpowered. The primary clamp includes a pair of depending levers on the stationary element, a pair of bosses on the depending levers, a control shaft spanning the depending levers and rotatable by a control lever, a cam on one of the depending levers, and a follower on the control shaft. The cam and follower flex the depending levers to thrust the bosses against the adjustable element to capture by friction the position of the latter relative to the stationary element. The secondary clamp includes a tubular sleeve on the control shaft having an eccentric lobe which is spring biased against a planar race on the adjustable element. When the primary clamp is overpowered, the onset of relative linear translation of the planar race rotates the sleeve in a direction which progressively more tightly wedges the eccentric lobe against the planar race.

REFERENCES:
patent: 5199319 (1993-04-01), Fujiu
patent: 5527068 (1996-06-01), Schneider
patent: 5570610 (1996-11-01), Cymbal
patent: 5769453 (1998-06-01), Peitsmeier et al.

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