Rack and pinion steering device

Machine element or mechanism – Control lever and linkage systems – Hand operated

Patent

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Details

74422, 180148, F16H 104, B62D 120, B62D 506

Patent

active

046191550

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.

REFERENCES:
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patent: 4008627 (1977-02-01), Bradshaw et al.
patent: 4016774 (1977-04-01), Baker et al.
patent: 4095482 (1978-01-01), Kirschner
patent: 4106363 (1978-08-01), Buckingham
patent: 4116085 (1978-09-01), Bishop
patent: 4127186 (1978-11-01), Koyano et al.
patent: 4187736 (1980-02-01), Haegele
patent: 4189955 (1980-02-01), Bishop
patent: 4299302 (1981-11-01), Nishikawa et al.
patent: 4322986 (1982-04-01), Adams et al.
patent: 4400991 (1983-08-01), Breitweg et al.
patent: 4444070 (1984-04-01), Yanai
patent: 4475413 (1984-10-01), Higuchi

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