초록 ▼

A system for delivering particulate material from a common hopper to row units mounted on each of first and second pivotally interconnected frame sections of an agricultural implement. The delivery system includes a first series of conduits for directing particulate material from the hopper to the r

A system for delivering particulate material from a common hopper to row units mounted on each of first and second pivotally interconnected frame sections of an agricultural implement. The delivery system includes a first series of conduits for directing particulate material from the hopper to the row units mounted on the first frame section of the implement and a second series of conduits. Each conduit in the second series of conduits includes a first tube leading from the hopper, a second tube leading from a particular row unit on the second frame section of the implement, and a split manifold coupling for connecting free ends of the tubes in the second series of conduits thereby defining enclosed passages leading from the hopper to each row unit on the second frame section of the implement which is adapted to receive material from the hopper.

대표청구항 ▼

An agricultural implement comprising: an elongated frame assembly including first and second frame sections, said frame sections being joined to each other for movement about a pivotal connection between an operational position whereat said frame sections are in general axial alignment relative to e

An agricultural implement comprising: an elongated frame assembly including first and second frame sections, said frame sections being joined to each other for movement about a pivotal connection between an operational position whereat said frame sections are in general axial alignment relative to each other and a folded position wherein the frame sections are folded away from each other to promote transportation of the implement; a material hopper mounted on at least one of said frame sections of the frame assembly; a plurality of row units being mounted on said frame assembly, with at least one row unit being mounted on said first frame section and at least one row unit being mounted on said second frame section; and a pneumatic system for delivering materials to each of said row units on the first and second frame sections, said system comprising a first one-piece conduit for pneumatically delivering materials from said hopper to said at least one row unit on the frame section on which said hopper is mounted and a second multipiece conduit for pneumatically delivering material from said hopper to said at least one row unit on the other frame section, said second conduit comprising a first tube leading from said hopper, a second tube leading from said at least one row unit on said other frame section, and a split manifold mounted proximate to the pivotal connection on the frame assembly and including a first and second manifolds which, when brought together, define an enclosed passage through which materials are transferred between said first and second tubes, said first manifold being fixedly connected to the frame section on which said hopper is mounted and having a free end of the first tube leading to an opening defining a portion of the passage of said split manifold, said second manifold being connected to the other frame section for movement therewith and having a free end of said second tube leading to an opening defining a remaining portion of the passage of said split manifold, said first and second manifolds further including cooperative cam surfaces for effecting alignment between said first and second openings when the frame sections are moved into an operative position relative to each other thereby facilitating the passage of materials from said hopper to said at least one row unit mounted on said second frame section and through said passage in the split manifold.