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. 20, 2022
Filed:
Sep. 25, 2018
Kabushiki Kaisha Riken, Tokyo, JP;
KABUSHIKI KAISHA RIKEN, Tokyo, JP;
Abstract
Provided is a side railhaving an outer peripheral surface, an inner peripheral surface, a first axial side surface, and a second axial side surfaceparallel to the first axial side surface, in which, a beveled portionis provided between the outer peripheral surfaceand the second axial side surface, the beveled portionis formed in a tapered surface having a diameter gradually decreasing from the first axial side surfacetoward the second axial side surface in an axial direction; a tapered surfaceis provided between a first tapered surface portionwith an angle of 10° or more to the axial direction and a second tapered surface portionprovided between the first tapered surface portionand the outer peripheral surfaceand having a smaller angle of inclination to the axial direction than that of the first tapered surface portion.