Unloader for the grain bin of a combine

Claim 2

An unloader for the grain bin of a combine having a casing, comprising a vertical auger conveyor, a boom assembly including a substantially horizontally disposed auger conveyor and a turret providing a connection with said vertical auger conveyor, said auger conveyors including first and second auger shafts respectively, said first auger shaft extending upwardly through and beyond said turret, shaft means disposed externally of said substantially horizontal auger conveyor and extending for substantially the full length thereof, means providing a driving connection between the remote end of said external shaft means and said second auger shaft, and bevel gear means located above said turret and connecting said first auger shaft and said external shaft means so that the driving mechanism for said second auger shaft is located externally of the path of the grain flow through said conveyors, said turret providing a chamber for receiving grain from said vertical auger conveyor, the axes of said first and second auger shafts being disposed in a common vertical plane so that grain elevated by said vertical auger conveyor into said turret can move directly into said horizontal auger conveyor.

Claim 3

An unloader as claimed in claim 1 in which said boom assembly is movable between a transport position in which it is disposed parallel to the side wall of said casing, and a delivery position in which it extends outwardly from said casing, a third auger conveyor disposed substantially horizontally and having its front end located to receive grain from said second mentioned auger conveyor when in its transport position, and having its rear end extending rearwardly beyond said casing for delivery of grain to a trailing wagon.

Claim 4

An unloader for the grain bin of a combine having a casing, comprising a vertical pipe having its lower end extending into said grain bin to receive grain therein, an auger within said pipe having an auger shaft, a boom assembly located at the upper end of said vertical pipe, said boom assembly comprising a turret located at the upper end of said vertical pipe and supported thereby, a second pipe disposed at an angle to said vertical pipe for conveying grain in a generally horizontal direction having an inner end communicating with said turret and an outlet at its outer end, a second auger located within said second pipe and having an auger shaft, and means for supporting the outer portion of said second pipe, drive means for said augers comprising shaft means disposed externally of said second pipe and extending for substantially the full length thereof, means providing a driving connection between the remote end of said external shaft means and said second auger shaft, said first auger shaft extending upwardly through and beyond said turret, a power shaft, and a gear set located above said turret and providing a driving connection between said power shaft and said vertical auger shaft and said external shaft means, said turret providing a chamber for receiving grain from said vertical auger, and said second auger removing from said chamber the grain supplied by said vertical auger, the axes of said first and second auger shafts being disposed in a common vertical plane so that said grain moves directly from said chamber into said second pipe.

Claim 5

An unloader for the grain bin of a combine having a casing, comprising a vertical pipe having its lower end extending into said grain bin to receive grain therein, an auger within said pipe having an auger shaft, a boom assembly located at the upper end of said vertical pipe, said boom assembly comprising a turret located at the upper end of said vertical pipe and supported thereby, a second pipe disposed at an angle to said vertical pipe for conveying grain in a generally horizontal direction having an inner end communicating with said turret and an outlet at its outer end, a second auger located within said second pipe and having an auger shaft, and means for supporting the outer portion of said second pipe, drive means for said augers comprising shaft means disposed externally of said second pipe and extending for substantially the full length thereof, means providing a driving connection between the remote end of said external shaft means and said second auger shaft, said first auger shaft extending upwardly through and beyond said turret, a power shaft, and a gear set located above said turret and providing a driving connection between said power shaft and said vertical auger shaft and said external shaft means, said turret providing a chamber for receiving grain from said vertical auger, and said second auger removing from said chamber the grain supplied by said vertical auger, the axes of said first and second auger shafts being disposed in a common vertical plane so that said grain moves directly from said chamber into said second pipe.

Claim 6

An unloader as claimed in claim 3 in which said turret is rotatably mounted on said vertical pipe, said outer pipe portion supporting means comprising a bracket removably mounted on said casing and having a pivot, a bracket secured to the outer portion of said second pipe, and a tension member exteNding between said pipe bracket and said pivot, said pivot being aligned with the axis of said vertical auger whereby said boom assembly is rotatably mounted with respect to the vertical axis of said vertical auger.

Claim 7

An unloader as claimed in claim 3 in which said boom assembly is rotatably mounted, link means connecting said casing and said boom assembly, and a hydraulic cylinder extending between said casing and said link means for swinging said boom assembly toward and away from said casing.

Claim 8

An unloader as claimed in claim 3 which includes a plate mounted at the outer end of said second pipe and closing the end thereof, a bearing mounted in said plate for the outer end of said second auger, said means providing a driving connection between the remote end of said shaft means and said auger shaft comprising chain and sprocket means mounted on said plate, said outlet comprising an opening in the undersurface of said second pipe adjoint to said plate.

Claim 9

An unloader for the grain bin of a combine having a casing, comprising a vertical pipe having its lower end extending into said grain bin to receive grain therein, an auger within said pipe having an auger shaft, a boom assembly located at the upper end of said vertical pipe, said boom assembly comprising a turret located at the upper end of said vertical pipe and supported thereby, a second pipe disposed at an angle to said vertical pipe for conveying grain in a generally horizontal direction having an inner end communicating with said turret and an outlet at its outer end, a second auger located within said second pipe and having an auger shaft, and means for supporting the outer portion of said second pipe, drive means for said augers comprising shaft means disposed externally of said second pipe and extending for substantially the full length thereof, means providing a driving connection between the remote end of said external shaft means and said second auger shaft, said first auger shaft extending upwardly through and beyond said turret, a power shaft, a gear set located above said turret and providing a driving connection between said power shaft and said vertical auger shaft and said external shaft means, said turret providing a chamber for receiving grain from said vertical auger, and said second auger removing from said chamber the grain supplied by said vertical auger, said boom assembly being rotatably mounted, bracket means secured to said casing and having their outer ends terminating short of said turret, said gear set having a base secured to said brackets, bearing means for said power shaft mounted on said base, a first bevel gear secured to said power shaft, a second bevel gear secured to said vertical auger shaft and meshing with said first bevel gear, said external shaft means including a propeller shaft, bearing means for the inner end of said propeller shaft, said bearing means being mounted on said turret, a third bevel gear secured to said propeller shaft and meshing with said second bevel gear whereby the angular movement of said boom assembly is concentric with the axis of said second bevel gear so that the meshed relationship of said second and third bevel gears is maintained for different angular positions of said boom assembly.

Claim 10

An unloader for the grain bin of a combine having a casing, comprising a vertical pipe having its lower end extending into said grain bin to receive grain therein, an auger within said pipe having an auger shaft, a boom assembly located at the upper end of said vertical pipe, said boom assembly comprising a turret located at the upper end of said vertical pipe and supported thereby, a second pipe disposed at an angle to said vertical pipe for conveying grain in a generally horizontal direction having an inner end communicating with said turret and an outlet at its outer end, a second auger located within said second pipe and having an auger shaft, and means for supporting the outer portion of said second pipe, drive means for said augers comprising shaft means disposed externally of said second pipe and extending for substantially the full length thereof, means providing a driving connection between the remote end of said external shaft means and said second auger shaft, said first auger shaft extending upwardly through and beyond said turret, a power shaft, a gear set located above said turret and providing a driving connection between said power shaft and said vertical auger shaft and said external shaft means, said turret providing a chamber for receiving grain from said vertical auger, and said second auger removing from said chamber the grain supplied by said vertical auger, said boom assembly being rotatably mounted, bracket means secured to said casing and having their outer ends terminating short of said turret, said gear set having a base secured to said brackets, bearing means for said power shaft mounted on said base, a first bevel gear secured to said power shaft, a second bevel gear secured to said vertical auger shaft and meshing with said first bevel gear, said external shaft means including a propeller shaft, bearing means for the inner end of said propeller shaft, said bearing means being mounted on said turret, a third bevel gear secured to said propeller shaft and meshing with said second bevel gear whereby the angular movement of said boom assembly is concentric with the axis of said second bevel gear so that the meshed relationship of said second and third bevel gears is maintained for different angular positions of said boom assembly.

Claim 11

An unloader as claimed in claim 7 in which said base is removably secured to said brackets, whereby said boom assembly, said vertical auger, and said gear set may be elevated so that the vertical auger is removed from said vertical pipe.

Claim 12

An unloader for the grain bin of a combine having a casing, comprising a vertical pipe having its lower end extending into said grain bin to receive grain therein, an auger within said pipe having an auger shaft, a boom assembly located at the upper end of said vertical pipe, said boom assembly comprising a turret located at the upper end of said vertical pipe and supported thereby, a second pipe disposed at an angle to said vertical pipe for conveying grain in a generally horizontal direction having an inner end communicAting with said turret and an outlet at its outer end, a second auger located within said second pipe and having an auger shaft, and means for supporting the outer portion of said second pipe, drive means for said augers comprising shaft means disposed externally of said second pipe and extending for substantially the full length thereof, means providing a driving connection between the remote end of said external shaft means and said second auger shaft, said first auger shaft extending upwardly through and beyond said turret, a power shaft, a gear set located above said turret and providing a driving connection between said power shaft and said vertical auger shaft and said external shaft means, said turret providing a chamber for receiving grain from said vertical auger, and said second auger removing from said chamber the grain supplied by said vertical auger, a plate mounted at the outer end of said second pipe and closing the end thereof, a bearing mounted in said plate for the outer end of said second auger, said means providing a driving connection between the remote end of said shaft means and said auger shaft comprising chain and sprocket means mounted on said plate, said outlet comprising an opening in the undersurface of said second pipe adjoint to said plate, said shaft means comprising a propeller shaft and a fixed axis shaft, universal joint means connecting said propeller shaft and said fixed axis shaft, a bracket secured to said second pipe toward the outer end thereof, bearing means carried by said bracket, the inner end of said fixed axis shaft being journalled in said bearing means, and a bracket mounted on said turret and carrying a second bearing, the inner end of said propeller shaft being journalled in said second bearing, and the outer end being supported by said universal joint means.

Claim 13

An unloader for the grain bin of a combine having a casing, comprising a vertical pipe having its lower end extending into said grain bin to receive grain therein, an auger within said pipe having an auger shaft, a boom assembly located at the upper end of said vertical pipe, said boom assembly comprising a turret located at the upper end of said vertical pipe and supported thereby, a second pipe disposed at an angle to said vertical pipe for conveying grain in a generally horizontal direction having an inner end communicAting with said turret and an outlet at its outer end, a second auger located within said second pipe and having an auger shaft, and means for supporting the outer portion of said second pipe, drive means for said augers comprising shaft means disposed externally of said second pipe and extending for substantially the full length thereof, means providing a driving connection between the remote end of said external shaft means and said second auger shaft, said first auger shaft extending upwardly through and beyond said turret, a power shaft, a gear set located above said turret and providing a driving connection between said power shaft and said vertical auger shaft and said external shaft means, said turret providing a chamber for receiving grain from said vertical auger, and said second auger removing from said chamber the grain supplied by said vertical auger, a plate mounted at the outer end of said second pipe and closing the end thereof, a bearing mounted in said plate for the outer end of said second auger, said means providing a driving connection between the remote end of said shaft means and said auger shaft comprising chain and sprocket means mounted on said plate, said outlet comprising an opening in the undersurface of said second pipe adjoint to said plate, said shaft means comprising a propeller shaft and a fixed axis shaft, universal joint means connecting said propeller shaft and said fixed axis shaft, a bracket secured to said second pipe toward the outer end thereof, bearing means carried by said bracket, the inner end of said fixed axis shaft being journalled in said bearing means, and a bracket mounted on said turret and carrying a second bearing, the inner end of said propeller shaft being journalled in said second bearing, and the outer end being supported by said universal joint means.

Claim 14

An unloader for the grain bin of a combine having a casing, comprising a vertical pipe having its lower end extending into said grain bin to receive grain therein, an auger within said pipe having an auger shaft, a boom assembly located at the upper end of said vertical pipe, said boom assembly comprising a turret rotatably mounted on the upper end of said vertical pipe and supported thereby, a second pipe disposed at an angle to said vertical pipe for conveying grain in a generally horizontal direction and having an inner end communicating with said turret, a second auger located within said second pipe and having an auger shaft, and swinging support means for supporting the outer portion of said second pipe, shaft means disposed externally of said second pipe and extending for substantially the full length thereof, means providing a driving connection between the remote end of said external shaft means and said second-mentioned auger shaft, said first auger shaft extending upwardly through and beyond said turret, said external shaft means and said first-mentioned auger shaft being arranged with intersecting axes, and bevel gear means connecting the upper end of said first auger shaft and the inner end of said external shaft means whereby the meshed relationship of said bevel gear means is maintained for different angular positions of said boom assembly, the vertical axes of said vertical pipe, said first auger shaft, and said swinging support means being substantially coincident with each other to permit swinging movement of said boom assembly toward and away from said casing.

Claim 15

An unloader for the grain bin of a combine having a casing, comprising a vertical pipe having its lower end extending into said grain bin to receive grain therein, an auger within said pipe having an auger shaft, a boom assembly located at the upper end of said vertical pipe, said boom assembly comprising a turret rotatably mounted on the upper end of said vertical pipe and supported thereby, a second pipe disposed at an angle to said vertical pipe for conveying grain in a generally horizontal direction and having an inner end communicating with said turret, a second auger located within said second pipe and having an auger shaft, and swinging support means for supporting the outer portion of said second pipe, shaft means disposed externally of said second pipe and extending for substantially the full length thereof, means providing a driving connection between the remote end of said external shaft means and said second-mentioned auger shaft, said first auger shaft extending upwardly through and beyond said turret, said external shaft means and said first-mentioned auger shaft being arranged with intersecting axes, and bevel gear means connecting the upper end of said first auger shaft and the inner end of said external shaft means whereby the meshed relationship of said bevel gear means is maintained for different angular positions of said boom assembly, the vertical axes of said vertical pipe, said first auger shaft, and said swinging support means being substantially coincident with each other to permit swinging movement of said boom assembly toward and away from said casing.