Patent Number: 6,305,154

Title: High speed sickle cutting system

Abstract: A sickle cutting system of the type used in mowers, other harvesting machines and the like. A sickle is shown consisting of 13/4 to 21/4 inch knife sections, a knifeback bar, a plurality of sickle guards with fingers spaced to match the knife sections. The knife and sickle guard fingers may be of any number. The sickle cutting system provides a cutting surface for the sickle, adjustable hold-down clips that hold the knife sections down to the cutting surface. The clips also provide a rear wear bar for the sickle. A driving mechanism is provided with a stroke complimentary to the spacing of the knife sections. The driving mechanism may be a wobble joint, a pitman type, or other device which can convert rotary motion to reciprocating motion. The sickle is driven at a speed of between 2200 to 2700, and ideally at approximately 2475 strokes per minute.

Inventors: Yang; Xinzham (Indianola, IA), Bloom; Max R. (St. Charles, IA), Schwenke; Gail I. (Indianola, IA)

Assignee: Alamo Group Inc.

International Classification: A01D 34/02 (20060101); A01D 34/13 (20060101); A01D 034/13 ()

Expiration Date: 10/23/2018