Load sensing pin
First Claim
Patent Images
1. A load sensing pin, comprising:
- a pin pivotally supporting a depth adjusting mechanism of a row unit of an agricultural planter, whereby pivotal movement of the depth adjusting mechanism about said pin positionally adjusts a gauge wheel with respect to an opening disc to control penetration depth of the opening disc into a ground surface, said pin receiving an applied load from the depth adjusting mechanism resulting from loading on the gauge wheel;
said pin having a load sensor substantially fixedly oriented with respect to said applied load, said load sensor generating a load signal corresponding to strain of said pin resulting from said applied load.
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Abstract
A load sensing pin disposed to receive a load applied in a direction substantially transverse to a longitudinal axis of the pin. A load sensor is substantially fixedly oriented with respect to the applied load or alternatively with respect to the pin which is rotationally restrained with respect to a support structure. The load sensor is disposed to generate a load signal corresponding to strain of the pin resulting from the applied load.
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Citations
32 Claims
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1. A load sensing pin, comprising:
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a pin pivotally supporting a depth adjusting mechanism of a row unit of an agricultural planter, whereby pivotal movement of the depth adjusting mechanism about said pin positionally adjusts a gauge wheel with respect to an opening disc to control penetration depth of the opening disc into a ground surface, said pin receiving an applied load from the depth adjusting mechanism resulting from loading on the gauge wheel; said pin having a load sensor substantially fixedly oriented with respect to said applied load, said load sensor generating a load signal corresponding to strain of said pin resulting from said applied load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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- 9. On a row-unit of an agricultural planter, wherein said row unit includes a gauge wheel, an opening disc and a depth adjusting mechanism pivotally movable about a pin, whereby pivotal movement of the depth adjusting mechanism about said pin positionally adjusts the gauge wheel with respect to the opening disc to control penetration depth of the opening disc into a ground surface, said pin receiving an applied load from the depth adjusting mechanism resulting from loading on the gauge wheel, said pin having a load sensor substantially fixedly oriented with respect to said applied load, said load sensor generating a load signal corresponding to strain of said pin resulting from said applied load.
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17. On a row-unit of an agricultural planter, wherein the row-unit includes a gauge wheel, an opening disc and a depth adjusting mechanism pivotally movable about a load sensing pin, whereby pivotal movement of the depth adjusting mechanism about said load sensing pin adjusts the gauge wheel with respect to the opening disc to control penetration depth of the opening disc into a ground surface, said load sensing pin, comprising:
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a pin substantially rotationally restrained in relation to the depth adjusting mechanism, said load sensing pin disposed to receive a load applied in a direction substantially transverse to a longitudinal axis of said load sensing pin, said applied load resulting from loading on the gauge wheel; and a load sensor disposed to generate a load signal corresponding to strain of said load sensing pin resulting from said applied load. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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- 24. On a row-unit of an agricultural planter, wherein said row unit includes a gauge wheel, an opening disc and a depth adjusting mechanism pivotally movable about a pin, whereby pivotal movement of the depth adjusting mechanism about said pin positionally adjusts the gauge wheel with respect to the opening disc to control penetration depth of the opening disc into a ground surface, said pin receiving an applied load from the depth adjusting mechanism resulting from loading on the gauge wheel, said pin having a load sensor substantially fixedly oriented with respect to said depth adjusting mechanism, said load sensor generating a load signal corresponding to strain of said pin resulting from said applied load.
Specification