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:
May. 04, 2021

Filed:

Aug. 28, 2018
Applicant:

Kyoto Tool Co., Ltd., Kyoto, JP;

Inventors:

Yoshiyuki Yamaguchi, Kyoto, JP;

Yuki Okawa, Kyoto, JP;

Yoshiharu Matsumoto, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B 23/142 (2006.01);
U.S. Cl.
CPC ...
B25B 23/1425 (2013.01); B25B 23/1427 (2013.01);
Abstract

The tightening tool includes: a main body configured to be able to be held by a worker and including a turn detector; a head having an approximately rod shape and provided in the main body, which can engage with a tightened member; a head pin configured to pivotally support the head in the main body to turn the main body with respect to the head; and a spring configured to restrict the main body from turning with respect to the head by a compressive force in a longitudinal direction of the head. When a tightening torque reaches a preset torque value, the turn detector is released from restriction by the spring to turn around the head pin in a first direction and then turn in a second direction, and therefore detects turns of the main body with respect to the head in the first direction and the second direction.


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