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:
Jul. 12, 2016

Filed:

Aug. 05, 2014
Applicant:

Fanuc Corporation, Yamanashi, JP;

Inventor:

Toshimichi Yoshinaga, Yamanashi, JP;

Assignee:

Fanuc Corporation, Yamanashi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P 19/06 (2006.01); B25H 1/00 (2006.01); B25B 21/00 (2006.01);
U.S. Cl.
CPC ...
B23P 19/06 (2013.01); B25B 21/00 (2013.01); B25H 1/0021 (2013.01); Y10S 901/41 (2013.01); Y10S 901/46 (2013.01);
Abstract

A screw fastening device () includes a base part (), an extended part () with one end () which is attached to the base part in a pivotable manner, a tool part () which is fastened to another end () of the extended part and makes a screw which is engaged with its front end rotate, a pushing mechanism () which pushes the tool part against the screw () through the extended part in an axial direction of the screw, a guide part () which is fastened to the base part and has an arc shaped part, a torque generating part () which generates a torque which makes the extended part rotate along the arc shaped part in a fastening direction of the screw, and a first detection part () which detects when a reaction force of a predetermined value or more acts against the torque generating part.


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