Patent ID: 7313905
Filing Date: 2008-01-01
Classification: A01D

Abstract:
1. A toolbar including a fold arm comprising: (a) a first section, including an inner end operatively, pivotally connected at a substantially vertical first pivot axis to a main frame, and an outer end; (b) a second section, including a first pivot joint, operatively, pivotally attached to the outer end of the first section at a second substantially vertical pivot axis, a second pivot joint, pivotal about a substantially horizontal third pivot axis, and a third pivot joint; (c) a third section including a fixed length element operatively, pivotally attached at a first end to the third pivot joint of the second section, said third pivot joint pivotal about a substantially horizontal fourth pivot axis oriented in alignment with a longitudinal axis of said third section; (d) a tool frame to which a second end of the third section is operatively pivotally attached at a substantially horizontal fifth pivot axis, said tool frame comprising a substantially vertical fifth pivot joint, a top end, and a bottom end; and (e) a variable length fourth section, operatively, pivotally attached at an inner end to the third section and at an outer end to the top end to the tool frame.