Title: Sensor for automatic steering system for row-crop harvester

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Claims: We claim:

1. A sensor for an automatic steering system of a standing-crop harvester having a chassis adapted to travel in a transport direction along the ground, said sensor comprising:

a support on said chassis;

a flexible and arcuate rod having one end secured to said support and another end extending horizontally backwardly in said direction toward said chassis; and

a strain gauge bonded to said rod adjacent said one end.

2. The sensor defined in claim 1, further comprising another such support, rod, and strain gauge on said chassis next to the first mentioned support, rod and strain gauge.

3. The sensor defined in claim 1, further comprising a second such strain gauge on said rod opposite the first-mentioned strain gauge.

4. The sensor defined in claim 1, further comprising a cover plate on said rod overlying said gauge.

Other info:

Inventors: Stampfer, Michael (Gottmadingen, DT)
Graeber, Ewald (Weiterdingen, DT)
Oni, Helmut (Gottmadingen, DT)
Ruede, Ernst (Bietingen, DT)

Application Number: 629148
Filing Date: 1975-11-05
Publication_date: 1976-11-16
Assignee: Maschinenfabrik Fahr Aktiengesellschaft (Gottmadingen, DT)
Primary Class(es): 73/865.9 33/DIG13, 56/DIG15, 338/2
Other Classes:
US Patent Ref:

2981355	Apr, 1961	Rabuse	180/79.
3797208	Mar, 1974	Strubbe	56/10.

Other Refs:
Primary Examiner: Gill, James J.
Assistant Examiner:
Attorney: Ross; Karl F., Dubno; Herbert