OPENTECHNICAL PUBLICATION
OT-2026-000002918

Impact tool and electric tool

Published: 2026-09-15T19:16:08.088092Z
Permanent URL: https://opentechnical.org/p/OT-2026-000002918
Categories: Tools & Tooling > Clamping Tools

------------------------------------------------------------------------

ABSTRACT

Provided is an impact tool capable of stopping or decelerating a motor even if
seating has occurred before impacting starts. An electric tool, which is an
impact tool, includes: a motor; an impact mechanism driven by the motor; a
current measuring means for measuring a motor current; a rotation speed
measuring means for detecting a motor rotation speed; and a control unit for
controlling the motor. The control unit includes a seating determination mode
configured to determine whether a screw is seated, in accordance with the
measured motor current and motor rotation speed, at any time point before or
after impacting by the impact mechanism is started in a screw tightening
operation having multiple different work conditions, and to stop or decelerate
the motor after it has been determined that the screw is seated.

------------------------------------------------------------------------

OpenTechnical publication OT-2026-000002918
Published 2026-09-15T19:16:08.088092Z
https://opentechnical.org/p/OT-2026-000002918