B - Operations – Transporting – 25 – B
Patent
B - Operations, Transporting
25
B
81/23, 81/25, 34
B25B 23/151 (2006.01) B25B 21/00 (2006.01) B25B 23/147 (2006.01) G05D 17/02 (2006.01)
Patent
CA 1302127
ABSTRACT OF THE DISCLOSURE The output shaft of a nut runner for tightening a fastener such as a bolt is first rotated with a lower torque at a higher speed. When the tightening torque of the output shaft reaches a preset switching torque, torque. When the tightening torque reaches the switching the lower-torque higher-speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a medium torque at a medium speed. When the tightening torque then reaches a preset snug torque, the medium-torque medium-speed rotation of the output shaft is interrupted, and thereafter the output shaft is rotated with a higher torque at a higher speed. When the tightening torque reaches a preset final torque, the higher-torque lower-speed rotation of the output shaft is stopped, thus completing the tightening of the fastener.
585646
Asakura Toshikazu
Hayashi Shoichi
Kobayashi Shigeo
Takahashi Akihiko
Takeshima Akira
Honda Giken Kogyo Kabushiki Kaisha (also Trading As Honda Motor Ltd .)
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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