Patent ID: 6941737
Filing Date: 2005-09-13
Classification: A01D

Abstract:
1. In combination with a harvesting machine including an engine, a crop processing arrangement mounted for being driven in rotation, a driveline coupled between said engine and said crop processing arrangement and containing a main drive clutch, a safety arrangement, comprising: a brake being mounted for being selectively applied for stopping rotation of said crop processing arrangement, a control arrangement including a sensor for detecting an operator safety condition; said control arrangement being coupled to said brake and being operable for controlling said brake in such a way that it applies a braking effect to stop rotation of said crop processing arrangement in response to receiving a signal from said sensor, which indicates that a safe condition for said operator does not exist; an operating switch connected to said control arrangement for selectively controlling said main clutch for selectively coupling said engine to said driveline for driving said crop processing arrangement; said sensor being an operator presence sensor located at an operator station; and an ignition switch for selectively turning the engine on and off also being connected to said control arrangement; said brake being spring-applied and hydraulically-released; an engine-driven pump coupled for supplying pressurized fluid to said brake, whereby said brake is automatically engaged upon a loss of pressure caused by turning off said engine.