---
publication_id: "OT-2026-000002756"
title: "Torsion spring tensioning tool"
published_at: "2026-09-15T19:15:08.878107Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000002756"
categories:
  - "tools-tooling/clamping-tools"
keywords:
  - "b25b27/306"
  - "b25b27/306"
  - "b25b27/306"
  - "b25b27/30"
  - "e05d13/00"
  - "e05d13/1261"
---

# Torsion spring tensioning tool

## 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 ).