OPENTECHNICAL PUBLICATION
OT-2026-000002756

Torsion spring tensioning tool

Published: 2026-09-15T19:15:08.878107Z
Permanent URL: https://opentechnical.org/p/OT-2026-000002756
Categories: Tools & Tooling > Clamping Tools

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ABSTRACT

Torsion spring tensioning tool ( 100 ) for tensioning a torsion spring of a
counterbalancing mechanism of an overhead door, wherein the torsion spring
tensioning tool ( 100 ) comprises a housing ( 80 ), a gear wheel arrangement (
20 ) adapted to be mounted on a shaft of the counterbalancing mechanism, said
gear wheel arrangement ( 20 ) comprising a gear wheel ( 21 ) rotatably
arranged in the housing ( 80 ), the torsion spring tensioning tool ( 100 )
further comprising a gear mechanism ( 54 ) coupled to the gear wheel ( 21 )
for rotating said gear wheel ( 21 ). The gear wheel arrangement ( 20 )
comprises a first and second engaging arrangement ( 32 , 60 ) arranged to be
fixed relative to the gear wheel ( 21 ).

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OpenTechnical publication OT-2026-000002756
Published 2026-09-15T19:15:08.878107Z
https://opentechnical.org/p/OT-2026-000002756