OPENTECHNICAL PUBLICATION
OT-2026-000001963

Extension/contraction device and wire tensioning device

Published: 2026-09-15T19:09:47.917802Z
Permanent URL: https://opentechnical.org/p/OT-2026-000001963
Categories: Tools & Tooling > Clamping Tools

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ABSTRACT

An extension/contraction device that is used when tensioning a wire is
provided. This extension/contraction device comprises an extension/contraction
device body and a power unit. The extension/contraction device body has: an
outside tubular part; an inside tubular part inserted into the outside tubular
part from one axial end thereof; a moving part that has a threaded shaft that
passes through the outside tubular part and the inside tubular part, and a nut
that is fixed to the other axial end of the inside tubular part and is screwed
onto the threaded shaft; and an operating part that rotates the threaded shaft
about the center axis to move the nut along the threaded shaft. The power unit
is detachably attached to the extension/contraction device body. An engagement
part that engages with the operating part, and a motor for rotating the
engagement part, are also provided.

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OpenTechnical publication OT-2026-000001963
Published 2026-09-15T19:09:47.917802Z
https://opentechnical.org/p/OT-2026-000001963