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:
Feb. 23, 2010
Filed:
Aug. 27, 2008
Tadashi Akita, Kawasaki, JP;
Tadashi Akita, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The screw tightening control system includes plural screw tightening apparatuses, and a control apparatus that sets a synchronization point after completion of changing tightening torques of the plural screw tightening apparatuses in a current step, and starts changing of the tightening torques of the plural screw tightening apparatuses in a next step, step by step from the synchronization point. The control apparatus causes a timing to start the changing of the tightening torque of at least one of the plural screw tightening apparatuses from the synchronization point to differ from a timing to start the changing of the tightening torque of at least another one of the plural screw tightening apparatuses. The system controls the plural screw tightening apparatuses while synchronizing them so as to avoid the inconveniences in a conventional art by a simple method.