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.

Date of Patent:
Jun. 02, 2020

Filed:

Jun. 01, 2016
Applicant:

Smc Corporation, Chiyoda-ku, JP;

Inventors:

Yasunaga Suzuki, Kasukabe, JP;

Chiaki Fukui, Abiko, JP;

Makoto Yaegashi, Tsukubamirai, JP;

Assignee:

SMC CORPORATION, Chiyoda-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 15/28 (2006.01); F15B 15/14 (2006.01); G01D 5/12 (2006.01);
U.S. Cl.
CPC ...
F15B 15/1414 (2013.01); F15B 15/2807 (2013.01); F15B 15/2861 (2013.01); F15B 2211/7054 (2013.01); F15B 2211/7056 (2013.01); G01D 5/12 (2013.01);
Abstract

In a piston unit of a fluid pressure cylinder a plurality of magnets are disposed through holes provided in a ring body. The magnets are disposed in facing relation to detection sensors that are mounted on connecting rods, and are provided in the same quantity as the connecting rods. Further, a guide rod extending from a head cover to a rod cover is inserted through the interior of the ring body. When the piston unit is displaced along the cylinder tube, rotational displacement is restricted by the piston unit being displaced along the guide rod, whereby the magnets are retained to face toward the connecting rods at all times. Therefore, the position of the piston unit is detected by the detection sensors through the magnets.


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