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:
May. 26, 2020
Filed:
Mar. 16, 2018
Ntn Corporation, Osaka, JP;
NTN CORPORATION, Osaka, JP;
Abstract
A link actuator includes a proximal end side link hub, a distal end side link hub, and link mechanisms which connect the distal end side link hub to the proximal end side link hub. Each of the link mechanisms includes a proximal side end link member, a distal side end link member, and an intermediate link member. Each of the proximal end side link hub and the distal end side link hub is provided with a through-hole which allows an origin positioning shaft to be inserted therethrough. The distal end posture of the link actuator is set to a specified posture by inserting the origin positioning shaft through the through-holes. An amount of operation of actuators in a state where preload is applied to the link actuator is set as a position of an origin of the actuator.