Cab suspension linkage system
First Claim
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1. A suspension system for carrying a cab, the suspension system comprising:
- a chassis assembly comprising a first chassis section and a second chassis section;
a linkage assembly comprising a first fore-aft linkage and a second fore-aft linkage for restraining movement of the first or second chassis sections, both the first and second fore-aft linkages coupled at a first end to the first chassis section and at a second end to the second chassis section;
a lateral linkage for restraining rotational movement of the cab, the lateral linkage coupled laterally at a first end to the second chassis section and at a second end to the cab; and
a dampener for damping motion between the cab and the chassis;
wherein the distance between the first ends of the fore-aft linkages is substantially less that the distance between the second ends of the fore-aft linkages.
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Abstract
An agricultural vehicle is described having a chassis and a cab mounted on the chassis. A suspension system for reducing the accelerations transmitted from the vehicles tires or tracks through the frame, into the cab, and ultimately through to the operator is provided. By reducing the accelerations, the ride quality is greatly improved, allowing operators to operate a vehicle for longer periods of time without excessive fatigue.
60 Citations
16 Claims
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1. A suspension system for carrying a cab, the suspension system comprising:
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a chassis assembly comprising a first chassis section and a second chassis section; a linkage assembly comprising a first fore-aft linkage and a second fore-aft linkage for restraining movement of the first or second chassis sections, both the first and second fore-aft linkages coupled at a first end to the first chassis section and at a second end to the second chassis section; a lateral linkage for restraining rotational movement of the cab, the lateral linkage coupled laterally at a first end to the second chassis section and at a second end to the cab; and a dampener for damping motion between the cab and the chassis; wherein the distance between the first ends of the fore-aft linkages is substantially less that the distance between the second ends of the fore-aft linkages. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An agricultural machine comprising:
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a cab sized to receive a user; a suspension system carrying the cab comprising; a chassis assembly comprising a first chassis section and a second chassis section; a linkage assembly comprising a first fore-aft linkage and a second fore-aft linkage for restraining movement of the first or second chassis sections, both the first and second fore-aft linkages coupled at a first end to the first chassis section and at a second end to the second chassis section; and a lateral linkage for restraining rotational movement of the cab, the lateral linkage coupled laterally at a first end to the second chassis section and at a second end to the cab; and a dampener for damping motion between the cab and the chassis; wherein the distance between the first ends of the fore-aft linkages is substantially less that the distance between the second ends of the fore-aft linkages. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification