OPENTECHNICAL PUBLICATION
OT-2026-000000357

Electric power tool

Published: 2026-09-15T19:02:47.293902Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000357
Categories: Tools & Tooling > Fastening Tools

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ABSTRACT

An electric power tool includes an electric motor and a rotation direction
restriction mechanism. The rotation direction restriction mechanism includes
an outer ring, an inner circumferential member, cam surfaces, lock members,
and a protrusion (eccentric mechanism). The inner circumferential member is
located on an inner circumferential side of the outer ring. The cam surfaces
are recessed on an outer circumferential surface of the inner circumferential
member. The inner circumferential member rotates relatively to the outer ring
in a first direction and is restricted from rotating in a second direction
when the lock member moves within the corresponding cam surface.

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OpenTechnical publication OT-2026-000000357
Published 2026-09-15T19:02:47.293902Z
https://opentechnical.org/p/OT-2026-000000357