Land vehicles – Wheeled – Running gear
Patent
1996-11-14
2000-07-11
Culbreth, Eric D.
Land vehicles
Wheeled
Running gear
280 89, 280 891, B62D 1500
Patent
active
06086074&
ABSTRACT:
A steering lock mechanism for a steerable axle assembly. The mechanism includes a fluid-actuated pin mounted within a cylinder. The cylinder is carried by a plate attached to a steerable wheel end. The pin carried by the cylinder has a tapered end which engages a tapered hole. When these tapered components are in engagement, steering motion of the steerable wheel end is prevented. The mechanism has several significant features, one of which is a fail-safe design in which a mechanical spring urges the pin to assume an extended or locking position in the event of failure of the pneumatic actuating system. The mechanism is designed so that the pin will find the hole as the steered wheels sweep past the straight ahead position, in the event of a failure of the fluid actuation system used to retract the pin. A second feature is an adjustability afforded by 1) the pin being eccentrically mounted within a rotatable supporting cylinder; and 2) the tapered hole for receiving the pin being mounted in a slidable block which can be brought into alignment with the pin after the steerable wheels have been put into a straight ahead position.
REFERENCES:
patent: 693962 (1902-02-01), Fox et al.
patent: 1449907 (1923-03-01), Lumley
patent: 1750599 (1930-03-01), Holmes et al.
patent: 1760935 (1930-06-01), Burdette
patent: 2182596 (1939-12-01), Olsen
patent: 2448468 (1948-08-01), Ross
patent: 4958845 (1990-09-01), Parks
patent: 5111901 (1992-05-01), Bachhuber et al.
patent: 5417299 (1995-05-01), Pillar et al.
Culbreth Eric D.
Oshkosh Truck Corporation
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