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. 19, 2019
Filed:
Aug. 11, 2017
Fanuc Corporation, Yamanashi, JP;
Hidenori Kurebayashi, Yamanashi, JP;
FANUC CORPORATION, Yamanashi, JP;
Abstract
An object is to exhibit a higher sealing performance against an external pressure, to more reliably prevent breakage of a sealed state established by an inner seal member, and to maintain the soundness of inner mechanical components. Provided is a joint structure including two joint members, a driving mechanism that rotationally drives the two joint members about a predetermined axis relative to each other, two seal members forming a seal between the joint members at positions doubly surrounding the outside of a lubricant storing part in the driving mechanism, and a pressure-applying means that makes the air pressure in a space provided between the two seal members, higher than the pressure of the outside air.