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:
Dec. 27, 2022
Filed:
Dec. 14, 2016
Ricoh Company, Ltd., Tokyo, JP;
Junichiro Natori, Kanagawa, JP;
Tsuneaki Kondoh, Kanagawa, JP;
Tomoaki Sugawara, Kanagawa, JP;
Mayuka Araumi, Tokyo, JP;
Takahiro Imai, Tokyo, JP;
Hideyuki Miyazawa, Kanagawa, JP;
Mizuki Otagiri, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
Emergency stop pressure sensorsare installed on both side surfaces of a movable linkof a robot armof an assembly robot. When a worker S unintentionally walks in a swing range Ra of the robot armand contacts the emergency stop pressure sensor, a detection signal is transmitted to a control unit, and the control unitshuts power transmission to a driving source swinging the robot arm. The emergency stop pressure sensorhas a first electrode and a second electrode constituting a pair of electrodes and an intermediate layer formed of rubber or a rubber composition, which is disposed between the pair of electrodes, the intermediate layer generating power upon deformation caused by contact with a contacted body (the worker). A side of the intermediate layer in a laminate direction undergoes surface modification treatment and/or inactivation treatment. With this treatment, the one side and the other side of the intermediate layer have different degrees of deformation to the same deformation adding force.