Rack and pinion steering device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Oct 28, 1986
Grant Date -
N/A
app pub date -
Apr 15, 1983
filing date -
Apr 15, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rack and pinion steering device which comprises a pinion operatively connected to a steering shaft of a vehicle, a long rod-like rack operatively connected to a steering lever mechanism of wheels of the vehicle, said rack having a group of rack teeth meshed with said pinion, and a spring device in contact with the back of said rack on the side opposite said pinion to resiliently bias said rack against said pinion. Said group of rack teeth includes a first portion close to and a second portion away from a center of said rack lengthwise which portions are defined symmetrically on opposite sides of said center, and said both second portions have a reference pitch line which inclines so as to approach the axis of said rack as it is away from said first portion adjacent thereto, whereby said rack gives rise to a flexure displacement under bending pressure caused by said spring device in connection with the meshed position between the rack and the pinion on said group of rack teeth.
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