A harvester reel for an agricultural harvester. The harvester reel includes a central rotatable shaft, and a plurality of reel tine bars extending widthwise across the reel and connected to the central rotatable shaft for rotation therewith. Each of the plurality of reel tine bars includes a biasing member for biasing the reel tine bar to rotate about its central longitudinal axis, and a plurality of tines. A cam assembly guides rotation of the plurality of reel tine bars. The cam assembly includes a primary cam for guiding rotation of the tine bars during rotation of the central rotatable shaft, and a moveable or stationary secondary cam. The moveable secondary cam pivots the tine bars about their longitudinal axes away from a cutterbar. Alternatively, a moveable diverter cooperates with the stationary secondary cam to pivot the reel tine bars about their longitudinal axes away from the cutterbar.

A harvesting reel assembly for a header of an agricultural harvester is disclosed. The harvesting reel assembly includes a central rotatable shaft, a plurality of support members, a cam assembly and an extendable reel arm. The plurality of support members extend widthwise across the reel assembly and connect to the central rotatable shaft for rotation therewith. The cam assembly guides rotation of the plurality of support members. The extendable reel arm includes a first end engaged with the central rotatable shaft for rotation therewith. The extendable reel arm also includes a distal end opposite the first end connected to one of the plurality of support members.

A harvesting reel assembly for a header of an agricultural harvester is disclosed. The harvesting reel assembly includes a central rotatable shaft, a plurality of support members, a cam assembly and an extendable reel arm. The plurality of support members extend widthwise across the reel assembly and connect to the central rotatable shaft for rotation therewith. The cam assembly guides rotation of the plurality of support members. The extendable reel arm includes a first end engaged with the central rotatable shaft for rotation therewith. The extendable reel arm also includes a distal end opposite the first end connected to one of the plurality of support members.

A dual-cam linkage system controls the orientation of tines on a reel of a crop harvesting header. The dual-cam linkage system includes a stationary, substantially circular first cam track that has a rotational center that is offset from the rotational axis of the reel. A second cam track is located in a support plate on which a tine-supporting member is mounted. The dual-cam linkage system also includes a pivoting linkage having a crank, an arm. The crank has a first end fixedly attached to the tine-supporting member. The arm has an outer end attached to a second end of the crank. The first cam follower is attached at an inner end of the arm and engages the first cam track. The second cam follower is attached to the arm at a position between the first cam follower and the crank and engages the second cam track.

A dual-cam linkage system controls the orientation of tines on a reel of a crop harvesting header. The dual-cam linkage system includes a stationary, substantially circular first cam track that has a rotational center that is offset from the rotational axis of the reel. A second cam track is located in a support plate on which a tine-supporting member is mounted. The dual-cam linkage system also includes a pivoting linkage having a crank, an arm. The crank has a first end fixedly attached to the tine-supporting member. The arm has an outer end attached to a second end of the crank. The first cam follower is attached at an inner end of the arm and engages the first cam track. The second cam follower is attached to the arm at a position between the first cam follower and the crank and engages the second cam track.

A split reel assembly for a header of a combine harvester is provided. The split reel has two reel assemblies driven by a central support assembly. A pivotable reel finger assembly is incorporated into a medial end of each reel assembly to deflect crop material away from the central support assembly.

A split reel assembly for a header of a combine harvester is provided. The split reel has two reel assemblies driven by a central support assembly. A pivotable reel finger assembly is incorporated into a medial end of each reel assembly to deflect crop material away from the central support assembly.

A reel arm for a header of an agricultural harvester comprising a rotatable coupler, a first linkage assembly and a second linkage assembly is disclosed. The rotatable coupler has a central rotational axis and includes a control shaft extending therethrough parallel to the central rotational axis. The first linkage assembly includes a first end connected to the control shaft about a first lateral side of the rotatable coupler and a second end opposite the first end for connection to a reel tine bar of a first reel assembly of the header. The second linkage assembly includes a first end connected to the control shaft about a second lateral side of the rotatable coupler and a second end opposite the first end for connection to a reel tine bar of a second reel assembly of the header.

A reel arm for a header of an agricultural harvester comprising a rotatable coupler, a first linkage assembly and a second linkage assembly is disclosed. The rotatable coupler has a central rotational axis and includes a control shaft extending therethrough parallel to the central rotational axis. The first linkage assembly includes a first end connected to the control shaft about a first lateral side of the rotatable coupler and a second end opposite the first end for connection to a reel tine bar of a first reel assembly of the header. The second linkage assembly includes a first end connected to the control shaft about a second lateral side of the rotatable coupler and a second end opposite the first end for connection to a reel tine bar of a second reel assembly of the header.

A crop harvesting header including a pickup reel mounted for rotation about a reel axis is disclosed and includes a plurality of reel bats peripherally disposed on the reel each having a plurality of outwardly extending fingers and being rotatable about a bat axis. A cam track adjacent to and surrounding the reel axis is immobilized w.r.t. the header and includes a cam surface and a guide surface. A linkage associated with each reel bat has first and second spaced apart cam followers that engage the cam surface at respective points of contact. The cam surface causes displacement of the linkage while traversing the cam track during rotation of the reel, the linkage being coupled to cause rotation of the reel bat about the bat axis for changing an angle of attack of the fingers. A guide follower disposed for engagement of the guide surface at a third point of contact between the first and second points of contact has an offset between the guide surface and the cam surface along the cam track selected to cause each of the first and second cam followers to maintain contact with the cam surface and the guide follower to maintain contact with the guide surface while traversing the cam track.