Spring mounted blade assembly and tillage implement therewith

Details Spring mounted blade assembly and tillage implement therewith Spring mounted blade assembly and tillage implement therewith

A - Human Necessities

01

B

A01B 21/08 (2006.01)

Patent

CA 2688846

Disclosed are tillage blade assemblies comprising a coil spring with a horizontal spring axis to permit upward deflection of a concave tillage blade in response to impact with obstacles. The mounting assembly provides for mounting the tillage blades in a particular orientation relative to the ground and the direction of travel of the implement in order that forces acting on the assembly due to movement of the blade through the soil are balanced such that there is little or no distortion of the coil spring relative to its spring axis. This prevents an off-axis load from acting on the spring when the assembly is in use and allows the blade to track through the soil at a desired angle. Impact with obstacles, such as rocks, is absorbed by deflection of the coil spring, thereby mitigating damage to the assembly. Tillage implements comprising the blade assemblies are able to operate at higher speeds than can usually be obtained for tillage implements, due to the absorption of impact energy by the spring.

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