Rotary feed mechanism for driving a shaft in response to turn of a lever
US6702392B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2001 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Feb 14, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotary feed mechanism includes a ratcheting mechanism intervening between an operating lever and a brake drum and operable to permit rotation of an input shaft only when the operating lever is angularly moved from the neutral position in any one of the first and second directions, but to lock the input shaft during angular movement of the operating shaft back to the neutral position. The ratcheting mechanism includes a lock gear having gear teeth and mounted on the input shaft for rotation together therewith, an indexing plate movable angularly between an engaged position, in which the indexing plate is engaged with some of the gear teeth of the lock gear, and a disengaged position, in which the indexing plate is disengaged from some of the gear teeth of the lock gear, about an axis lying substantially perpendicular to a longitudinal axis of the input shaft, and a release mechanism carried by the brake drum for releasing the indexing plate from the engaged position to allow the operating lever to be returned to the neutral position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.