SPRING TRIP STANDARD ASSEMBLY

摘要

SPRING TRIP STANDARD ASSEMBLY A spring trip standard assembly for a chisel plow or the like, the standard assembly having a compact single coil spring structure with a trip geometery producing a high initial trip force and a reduced maximum to initial trip force ratio. The horizontal trip force remains above the initial trip force through greater than half the trip height and then the trip force decreases. By reduction of the ratio of maximum to initial trip force, a heavy duty standard assembly is provided which may be used on lightweight tool frames originally designed for high trip force ratio standards having lower initial spring trip forces.