Grain threshing device
OwnerJohn Kinginventor
Life of this patent
Estimating the term…
Abstract
A grain threshing device (10) comprising a receptacle (12) or receiving a portion of crop head. The receptacle (12) has a plurality of longitudinal ribs (30) on inner surfaces. One or more flexible arm members (28) are arranged on a rotating shaft (22) within the receptacle (12) such that the flexible arm members (28) strike the ribs (30) during rotation. The action of the flexible arm members (28) and ribs (30) on the crop head within the receptacle (12) separates the grain from the crop head.
Claims25
A grain threshing device characterised by comprising:
- a receptacle arranged to receive a portion of crop head, the receptacle having a plurality of longitudinal ribs on inner surfaces thereof;
- a shaft rotatably mounted within the receptacle;
- and
- one or more flexible arm members extending from the shaft, the arm members being arranged to strike the longitudinal ribs upon rotation of the shaft;
- wherein rotation of the shaft and the flexible arm members causes the arm members to strike the crop head in the receptacle to separate the grain from the crop head.
A grain threshing device as claimed in any one of the preceding claims, characterised in that a removable lid is provided at a first end of the receptacle, through which the crop head is inserted into the receptacle, and a mesh is provided across an open second end of the receptacle, through which the threshed grain exits the receptacle.
A grain threshing device as claimed in any one of the preceding claims, characterised in that a mounting means is provided having a longitudinal bore within which the shaft is received, the flexible arm members being secured to the mounting means.
A grain threshing device as claimed in 7, characterised in that the mounting means comprises a rectangular plate member, the flexible arm members being secured to a surface of the rectangular plate member.
A grain threshing device as claimed in any one of the preceding claims, characterised in that the ribs are arranged at regular angular intervals around the inner surface of the receptacle.
A grain threshing device as claimed in any one of the preceding claims, characterised in that the ribs have a generally triangular transverse cross section.
A portable grain thresher characterised by comprising:
- a portable receptacle arranged to receive a portion of crop head, the receptacle having a plurality of longitudinal ribs on inner surfaces thereof;
- a shaft rotatably mounted within the receptacle, the shaft having an end thereof engageable with a portable drive means;
- and
- one or more flexible arm members extending from the shaft, the arm members being arranged to strike the longitudinal ribs upon rotation of the shaft;
- wherein 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 portable grain thresher as claimed in 21, characterised in that the mounting means comprises a rectangular plate member, the flexible arm members being secured to a surface of the rectangular plate member.
Dependencies are inferred from the claim text.