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:
Jan. 14, 2020
Filed:
May. 13, 2015
Nsk Ltd., Tokyo, JP;
Toshikazu Murata, Kanagawa, JP;
Yasutomo Shikanai, Kanagawa, JP;
NSK LTD., Tokyo, JP;
Abstract
In order to attach cup bearingswith good precision in portions between circular holesthat are formed in joining-arm sectionsof yokesof a cross shaft universal jointand the tip-end sections of a shaft sectionof a cross shaftregardless of variation in the dimensions of the joining-arm sections, the circular holesin the tip-end sections thereof, and the cup bearings, and elastic deformation of the joining-arm sectionsof the yokeduring press-fitting work, press-fitting punchesare used to pressure fit the cup bearingsto a preset reference position inside the circular holes, and the value of the pressure that is applied to the press-fitting punches at that instant is set as a reference pressure, and at the instant when the pressure applied to the press-fitting punches becomes larger than the reference pressure by a preset specified value, the cup bearingsare determined to have reached positions where press-fitting is complete.