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US 2021/0120733 A1Published application
Inertia compensation for a reciprocating mowing sickle
AssigneeAGCO Interntional GmbH
InventorJonas Toft Andersen
Life of this patent
Estimating the term…
Abstract
A mowing sickle drive system comprises a knife bar supported by a frame and drive apparatus operable to drive the knife bar in a reciprocating linear motion at a variable drive frequency. A spring is coupled to the knife bar for applying a restoring force to the knife bar toward a neutral position when in motion. The spring has a variable modulus of elasticity that is controlled dependent upon the drive frequency.
Claims20
A mowing sickle drive system comprising:
- a knife bar supported by a frame;
- a drive apparatus operable to drive the knife bar in a reciprocating linear motion at a variable drive frequency;
- and
- at least one gas spring coupled to the knife bar and configured to apply a restoring force to the knife bar toward a neutral position when the knife bar is in motion, wherein the at least one gas spring has a variable modulus of elasticity that is dependent upon the drive frequency.
1 more element
A harvesting header, the header comprising a mowing sickle drive system comprising:
- a knife bar supported by a frame;
- a drive apparatus operable to drive the knife bar in a reciprocating linear motion at a variable drive frequency;
- and
- at least one gas spring coupled to the knife bar for applying a restoring force to the knife bar toward a neutral position when in motion, wherein the at least one gas spring has a variable modulus of elasticity that is dependent upon the drive frequency.
1 more element
An agricultural machine comprising:
- a knife bar supported by a frame;
- a drive apparatus operable to drive the knife bar in a reciprocating linear motion at a variable drive frequency;
- and
- at least one gas spring coupled to the knife bar for applying a restoring force to the knife bar toward a neutral position when in motion, wherein the at least one gas spring has a variable modulus of elasticity that is dependent upon the drive frequency.
1 more element
Dependencies are inferred from the claim text.