Aircart manifold lift

Details Aircart manifold lift Aircart manifold lift

A - Human Necessities

01

C

A01C 7/00 (2006.01) A01C 7/06 (2006.01) A01C 7/08 (2006.01) A01C 7/20 (2006.01) A01C 15/00 (2006.01) A01C 15/04 (2006.01) F15B 15/26 (2006.01)

Patent

CA 2221395

The present invention relates to an automatic lift mechanism for a manifold in a pneumatic delivery system of an agricultural air cart for seed and fertilizer delivery. The unitary manifold is composed of a plurality of pneumatic passages and mixing valves for conducting metered product from to delivery tubes in a delivery tool. The lift mechanism includes a hydraulic cylinder for rotating a pivotal support rod and pivotal linkages connected to the manifold to lower and disengage the manifold from the meters and to position it to one side of the cart in a service position exposing the under carriage for access. A guide is provided to cooperate with the cylinder and pivotal linkages to guide substantially vertical movement of the manifold for disengaging and engaging the meters for sealing contact. The lift mechanism further includes a lock for maintaining the manifold in sealing contact in an operational position under tension once the actuating cylinder is depressurized. Advantageously the present invention provides an automated single operation to position a manifold, replacing manual systems which are more awkward and difficult to operate.

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