The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 1991
Filed:
Sep. 07, 1989
Mikio Yamaguchi, Takasaki, JP;
Sakae Matsumoto, Takasaki, JP;
Nippon Seiko Kabushiki Kaisha, Tokyo, JP;
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.