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:
Jul. 14, 2015
Filed:
Apr. 16, 2013
Nsk Ltd., Tokyo, JP;
NSK Ltd., , JP;
Abstract
Characteristics of joint sections using rivetsthat join flat sectionsof a pair of cage elements are improved regardless of differences in the volumes of the rivets. A head sectionand a crimped sectionof a rivetcomprise flange sectionsand convex sections. The inside surfaces of the flange sectionspress against the outside surfaces of the flat sections. The convex sectionshave a truncated cone shape with the maximum diameter being on the flange sectionside. The diameter dof the apex of the convex sectionsis equal to or less than the inner diameter Rof circular holes, and the outer diameter Dof the flange sectionsis equal to or greater than the outer diameter Dof the bottom section of the convex sections. Furthermore, the amount of protrusion Lthat the flange sectionsprotrude from the convex sectionsis equal to or less than two times the thickness Tin the axial direction of the flange sections