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:
Sep. 24, 1991
Filed:
Jun. 11, 1990
Hidemi Sugiura, Aichi, JP;
Mikio Ukai, Nagoya, JP;
Toyoda Gosei Co., Ltd., Nishikasugai, JP;
Abstract
A rack boot which is installed at the steering rack portion of an automobile comprises a small-diameter ring portion, a large-diameter ring portion, and a bellows portion interposed between the small-diameter portion and the large-diameter portion. An angle to an axial line of the boot of a slanted wall of a first crest in the bellows portion is arranged to be 70.degree. to 85.degree., whereby the slanted wall is turned in when the boot contracts to an extreme extent. As a result, the shrinkage ratio of the boot in the axial direction can be increased without any necessity to enlarge the outer diameter of the crest portion of the boot or to increase the number of crests. Consequently, the size of the rack boot can be reduced.