Cam actuated control for material unloader
US4480735A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1982 |
| Grant date | Nov 6, 1984 |
| Priority date | — |
| Expiry date | Sep 27, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20012
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A material unloader is presented having a cargo box structure with front and side walls. There is a beater mechanism rotatively mounted transversely at the rear of the cargo box and an endless apron conveyor disposed along the bottom for conveying material rearwardly to the beater. A main drive shaft powered from the PTO of the towing vehicle extends along one side of the cargo box where it interconnects with gear boxes for both the beater and the conveyor. The interconnection includes clutches and levers to actuate the clutches, together with drive coupling means. The positioning of the levers is simultaneously affected by a cam actuated control assembly mounted on the front wall of the cargo box. The control assembly comprises a rotatably mounted control shaft on which there is secured a multilobe cam plus a pawl and ratchet mechanism indexed by a pull rope for sequentially establishing a multiplicity of conveyor and beater unit drive conditions using a cam follower to relay commands via a control cable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.