Ratcheting mechanism
US7413065B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2006 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Dec 27, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D41/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ratcheting mechanism for a hand-held tool is provided. The mechanism includes a housing having a central opening and a pair of slots disposed on opposite sides of the opening. Each slot has an arcuate or circular end portion opposite the central opening which circumscribes an arc of greater than 180° in order to pivotally retain a generally circular stem of a pawl therein. Due to the presence of a pair of biasing members within the housing, each pawl is biased inwardly towards the central opening and into engagement with teeth located on the exterior of a gear rotatably disposed within the central opening. A cap rotatably connected to the housing over the pawls and the central opening is able to selectively disengage one of the pawls to allow the rotation of the gear within the central opening in a specified direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.