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. 31, 2022
Filed:
Apr. 24, 2019
Life Robotics Inc., Tokyo, JP;
Woo-Keun Yoon, Tokyo, JP;
LIFE ROBOTICS INC., Tokyo, JP;
Abstract
A robot arm mechanism has a plurality of link sections. The plurality of link sections are connected by a plurality of joints. Each of the link sections is provided with a plurality of photoelectric sensors. The photoelectric sensor is constituted of a light projecting section and a light receiving section. The light projecting section is installed at one end of the link section. The light receiving section is installed at the other end of the link section. On an outside of the link section, an optical path reaching the light receiving section from the light projecting section is positioned. Approach of a worker to the link section can be detected by the optical path of any of the photoelectric sensors being cut off.