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:
Nov. 28, 2017

Filed:

Aug. 23, 2012
Applicant:

Takuya Higurashi, Abiko, JP;

Inventor:

Takuya Higurashi, Abiko, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23Q 3/00 (2006.01); B23Q 17/00 (2006.01); B25B 5/12 (2006.01); B25B 5/16 (2006.01); G01B 7/00 (2006.01); B23Q 3/08 (2006.01);
U.S. Cl.
CPC ...
B23Q 17/002 (2013.01); B23Q 3/08 (2013.01); B25B 5/122 (2013.01); B25B 5/16 (2013.01); G01B 7/003 (2013.01);
Abstract

In a clamping device, a detection mechanism detects a state of clamping/unclamping and includes: a detected body that moves together with a piston and a piston rod; a circuit board disposed to face the detected body and capable of detecting the position of the detected body; and an indicator lamp that is connected to the circuit board and is lit/extinguished depending on the state of clamping/unclamping. By pressing a setting button provided on the detection mechanism when the rotation angle of the arm is changed, the second detection position of the circuit board for detecting the unclamped state is changed, making it possible to detect the detected body at a newly set detection position.


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