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:
Nov. 06, 2006
Filed:
Mar. 16, 1995
Yoshio Kumada, Toyota, JP;
Katsuyuki Hashizume, Toyota, JP;
Soji Kamiya, Toyota, JP;
Taiho Kogyo Co., Ltd., Toyota, JP;
Abstract
A helical grooveB is formed in the sliding surfaceA of a sliding bearingover the entire axial region thereof. To establish the height of a peaka defined by the helical grooveB, an imaginary reference line L extending parallel to the axis is formed which is determined such that the total cross-sectional area of all the peaksa is equal to the total cross-sectional area of all the valleysb when the helical grooveB is considered in axial section. A height, as measured from the reference line L to the topa' of the peaka is chosen in the range of from 1 to 8 μm. The space created by forming the valleysb allows the supply of lubricant oil to be increased, thereby simultaneously achieving a reduction in the frictional resistance and the occurrence of an impact sound.