Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1977-05-03
1978-11-28
Pekar, John A.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
74498, 92165R, 92167, B62D 510
Patent
active
041271866
ABSTRACT:
An oil hydraulic power steering device of the rack and pinion type which includes a rack rod supported for lateral oscillation about a fulcrum adjacent one end thereof and a power actuator comprised of a piston secured to the rack rod, an outer cylinder, and an inner cylinder in which the piston is slidably fitted and which is floatingly supported in the outer cylinder. The device further includes a spring for normally biasing the rack rod against the pinion and a mechanism for engaging the normally free end of the rack rod while laterally displacing the rod end to increase the backlash in the rack and pinion gearing as the rack rod approaches the end of its stroke. There is no excessive pressure of contact occurring between the meshing gear teeth and the backlash is self-adjustable as the teeth wear down. The inner cylinder of the actuator is laterally movable to follow the rack rod when the latter is forced to bend while maintaining the concentric relation to the rack rod to enable the latter at all times to operate smoothly.
REFERENCES:
patent: 2825610 (1958-03-01), Jakowchuk
patent: 2955667 (1960-10-01), Cota
patent: 3103986 (1963-09-01), Barton
Koyano Kimio
Toshimitsu Yoshihiko
Honda Giken Kogyo Kabushiki Kaisha
Pekar John A.
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