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:
Aug. 06, 2024
Filed:
Aug. 01, 2019
Thk Co., Ltd., Tokyo, JP;
Katsuya Fukushima, Tokyo, JP;
Masashi Ishii, Tokyo, JP;
Hiroki Niwa, Tokyo, JP;
Shigeki Hayashi, Kawasaki, JP;
Akira Suzuki, Tokyo, JP;
Kazuto Oga, Tokyo, JP;
Shogo Wakuta, Tokyo, JP;
Satoshi Hara, Tokyo, JP;
Tomofumi Mizuno, Tokyo, JP;
THK CO., LTD., Tokyo, JP;
Abstract
Provided is a sensing device to be applied to an actuator including a shaft that is movable in an axial direction, the shaft including a hollow part formed on at least a tip side of the shaft such that an interior of the shaft is hollow, the actuator being configured to generate a negative pressure in the hollow part to suction a workpiece to a tip of the shaft, thereby picking up the workpiece. The sensing device includes a flow sensor provided in a middle of an air passage to detect a flow rate of air flowing through the air passage, the air passage being a passage through which air sucked out from the hollow part flows when the negative pressure is applied to the hollow part, and a pressure sensor provided in a middle of the air passage, to detect a pressure in the air passage.