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:
Aug. 14, 2018
Filed:
May. 20, 2014
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Sanyo Machine Works, Ltd., Kitanagoya-shi, Aichi, JP;
Shiro Ando, Nissin, JP;
Makoto Ashikaga, Nissin, JP;
Masahiro Tasaka, Nissin, JP;
Hisashi Ryota, Owariasahi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, Aichi-Ken, JP;
SANYO MACHINE WORKS, LTD., Kitanagoya-shi, Aichi, JP;
Abstract
A control method according to an aspect of the invention includes a process for setting target fastening torque, a pulse interval of neighboring pulses, and an elevated value of torque per pulse, detecting last fastening torque at an Nth pulse (N is a natural number of 1 or more) after seating of a fastening member, setting pulse loading time at an N+1th pulse and pulse strength at the N+1th pulse based on the last fastening torque at the Nth pulse so that fastening torque at the N+1th pulse coincides with a multiple of the elevated value, controlling a fastening tool based on the pulse interval, the pulse loading time, and the pulse strength so that last fastening torque at an N+Mth pulse (M is a natural number of 1 or more) reaches target fastening torque.