Grain threshing device

A portable grain thresher comprising:

• a receptacle arranged to receive a portion of crop head, the receptacle having a cylindrical inner face, the inner face of the receptacle having a plurality of axial ribs spaced around inner face;
• a shaft rotatably mounted within the receptacle, the shaft having an end external of the receptacle which in use is able to be engaged with a portable drive means;
• and
• one or more flexible arm members extending from the shaft, the arm members being dimensioned to extend from the shaft to the inner face such that their outer ends are to be able to strike the axial ribs upon rotation of the shaft;
• wherein in use the portable drive means causes rotation of the shaft and the arm members such that the arm members strike the crop head in the receptacle to separate the grain from the crop head.

A grain threshing device comprising:

• a receptacle arranged to receive a portion of crop head, the receptacle being dimensioned to enable the grain threshing device when in use to be held by a person;
• the receptacle having a cylindrical inner face, the inner face of the receptacle having a plurality of axial ribs;
• a shaft rotatably mounted within the receptacle;
• the shaft supporting a plurality of flexible arm members extending substantially radially from the shaft;
• the arm members being dimensioned to extend from the shaft to the inner face such that their outer ends are to be able to strike the axial ribs upon rotation of the shaft;
• wherein flexible arm members comprise flat elongate strips wherein the outer ends of the elongate strips are arranged to strike the axial ribs in use;
• and the axial ribs are arranged at regular angular intervals around the inner face of the receptacle.

A portable grain thresher comprising:

• a receptacle arranged to receive a portion of crop head;
• the receptacle having a cylindrical inner face, the inner face of the receptacle having a plurality of axial ribs spaced around inner face;
• a shaft rotatably mounted within the receptacle, the shaft having an end external of the receptacle which in use is able to be engaged with a portable drive means;
• and one or more flexible arm members extending from the shaft, the arm members being dimensioned to extend from the shaft to the inner face such that their outer ends are to be able to strike the axial ribs upon rotation of the shaft;
• a removable lid is provided at one end of the receptacle, through which in use the crop head is to be introduced into the receptacle, and a mesh is provided across the other end of the receptacle, through which the threshed grain exits the receptacle;
• and the axial ribs are arranged at regular angular intervals around the inner face of the receptacle wherein in use the portable drive means causes rotation of the shaft and the arm members such that the arm members strike the crop head in the receptacle to separate the grain from the crop head.