Land vehicles – Wheeled – Running gear
Patent
1989-09-07
1991-02-05
Bertsch, Richard A.
Land vehicles
Wheeled
Running gear
74492, B62D 119
Patent
active
049898981
ABSTRACT:
An energy absorption type steering apparatus, which comprises a steering shaft with a steering wheel mounted on its rear end, a steering column rotatably supporting the steering shaft, a column bracket mounting said steering column for axially forward movement on a vehicle portion, an energy absorption box secured to the vehicle portion, and a deformable member having one end secured to the energy absorption box and another end extending from the energy absorption box and engaging, with an axial play, a projection formed on the steering column, the deformation member having a U-shaped folding portion and also having a flaring plastic deformation portion accommodated in the energy absorption box and flaring toward the aforementioned one end. The plastic deformation portion of the deformable member is restrained between upper and lower walls of the energy absorption box such that the load on the plastic deformation portion is gradually increased as a U-shaped folding portion is progressively shifted with constant radius of curvature.
REFERENCES:
patent: 3600971 (1971-08-01), Scarvelis
patent: 3740068 (1973-06-01), Arata
patent: 3944244 (1976-03-01), Albrecht
patent: 4102217 (1978-07-01), Yamamoto
patent: 4330139 (1982-05-01), Katayama
patent: 4630716 (1986-12-01), Faust
patent: 4632424 (1986-12-01), Morris
patent: 4786076 (1988-11-01), Wierschem
patent: 4838576 (1989-06-01), Hamasaki et al.
patent: 4901592 (1990-02-01), Ito et al.
Matsumoto Sakae
Yamaguchi Mikio
Bertsch Richard A.
Nippon Seiko Kabushiki Kaisha
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