Rake arm assembly
AssigneeOgden Metalworks, Inc.
InventorsCharles Michael Wright, Jeffrey Lee Mohr
Life of this patent
Estimating the term…
Abstract
A rake arm assembly for supporting a finger wheel on a side delivery rake such as a V-rake. The rake arm assembly has a shaft journaled under a support frame for the finger wheels. One end of the shaft is attached to a rake arm and the other end to a crank arm. A torsion spring on the shaft applies a torque to the rake arm reducing the weight of the finger wheel on the ground over a wide vertical range so that the finger wheel stays in contact with the ground and rides over mounds without bending the fingers.
Claims10
A rake arm assembly for mounting a finger wheel on a support frame at an angle to a direction of travel, said rake arm assembly comprising a shaft journaled to the frame, said shaft having first and second ends, said first end attached to a rake arm and said second end attached to a crank arm, said frame positioned between said rake arm and said crank arm;
- said rake arm angled away from the frame and having a free end adapted for mounting the finger wheel;
- and,
- a torsion coil spring surrounding the shaft between the crank arm and the frame, said torsion spring having first and second ends, said first end attached to the frame and said second end attached to the crank arm, said torsion spring wound such that it applies a torque to the rake arm reducing the weight of the finger wheel on the ground over a wide vertical range
- whereby the finger wheel stays in contact with the ground and rides over mounds without bending the fingers.
A rake arm assembly for mounting a finger wheel on a support frame, said rake arm assembly comprising a shaft journaled in a spindle tube attached under the frame, said spindle tube set at an angle to a long axis of the frame and sloped in the direction of travel, said shaft having first and second ends, said first end attached to a rake arm and said second end attached to a crank arm, said frame positioned between said rake arm and said crank arm;
- said rake arm angled away from the frame and having a free end adapted for mounting the finger wheel so that the shaft and a wheel axle of the finger wheel are parallel;
- and,
- a torsion coil spring surrounding the shaft between the crank arm and the frame, said torsion spring having first and second ends, said first end attached to the frame and said second end attached to the crank arm, said torsion spring wound such that it applies a torque to the rake arm reducing the weight of the finger wheel on the ground over a wide vertical range
- whereby the finger wheel stays in contact with the ground and rides over mounds without bending the fingers.
Dependencies are inferred from the claim text.