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. 01, 2011
Filed:
Mar. 24, 2009
Yasuhiro Suzuki, Kawaguchi, JP;
Issei Sato, Kawaguchi, JP;
Yasuhiro Suzuki, Kawaguchi, JP;
Issei Sato, Kawaguchi, JP;
Enplas Corporation, Saitama, JP;
Abstract
In a spiral bevel gear, a contact area between tooth flanks that mesh with each other is increased, thereby reducing teeth knocking noise and strengthening tooth sections. A shape of a tooth form on a normal plane T of a tooth sectionof a spiral bevel gear becomes gradually larger as the normal plane moves from a small-diameter end section side towards a large-diameter end section side along a tooth trace H, as indicated by (a), (b), and (c). In correspondence, a tooth crest arc section S is provided in a connecting sectionbetween a tooth flankon a meshing side and a tooth crest. The tooth crest arc section S is formed such that a curvature radius r gradually increases within a range that does not exceed a radius R of an inscribed circle inscribed within two tooth flanksandand the tooth creston the normal plane T. The tooth crest arc section S can increase contact area when contact is made with a tooth flank of a partner gear and elastic deformation occurs.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile