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:
Feb. 28, 2017
Filed:
Oct. 29, 2015
Applicant:
Quanta Storage Inc., Taoyuan, TW;
Inventors:
Yao-Ching Tsai, Taoyuan, TW;
Jen-Chen Wu, Taoyuan, TW;
Assignee:
QUANTA STORAGE INC., Taoyuan, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B25J 19/00 (2006.01);
U.S. Cl.
CPC ...
B25J 19/0004 (2013.01);
Abstract
A brake device of a robot arm utilizes a brake disc whose diameter is much larger than a diameter of a ratchet for increasing a contacting area of the brake disc, so as to generate a greater friction force. The brake device further utilizes a combining pin, a combining plate, and a plurality of guiding pins for transferring a rotating torque to the brake device having a larger diameter, so as to extend a moment arm of the friction force and generate a greater moment, which reduces a prepressing force and extends life of the brake device.