A - Human Necessities – 01 – D
Patent
A - Human Necessities
01
D
A01D 34/52 (2006.01) A01F 29/09 (2010.01) A01B 33/14 (2006.01) A01F 29/00 (2006.01)
Patent
CA 2066431
2066431 9103925 PCTABS00003 There is disclosed a rotary agricultural tool which may be incorporated in a number of different types of agricultural equipment, such as in a device for chopping-up bulk material. The rotary tool comprises an elongate cutter body (170) mounted in a frame for rotation about a substantially horizontal axis and carrying on its outer periphery pivotally mounted cutter blades (169), a housing (115, 160) extending partly around the cutter body (170), and feed rollers (120) for feeding the bulk material to the cutter body (170). The baldes (169) are arranged in pairs of blades (171), and each blade is mounted in position on the cutter body in such a way that: the blade is pivotable relative to its mounting (172) between an outwardly extending operative chopping position and an inoperative position; the radially inner end (175) of the blade is engageable with a stop in order to define the operative position; the general axis (178) of the blade extends through the pivotal mounting (172) and in a direction which is rearwardly inclined to a radius (179) passing from the centre (180) of the elongate body (170) and through the pivotal mounting (172) with respect to the normal direction of rotation of the cutter body (170); and a retading device (172, 173, 174) is coupled with the blade and which tens to maintain the blade in any particular angular position about its pivotal mounting (172) unless the balde is acted upon by a turning moment about its pivotal mounting which is in excess of a predetermined minimum turning moment determined by the retarding device. This arrangement of the baldes provides for quiet operation, and storage of rotational energy in the blades which is effective to carry out efficient chopping operations on the bulk material.
Roynberg Erling
Kverneland Underhaug As
Roynberg Erling
Sim & Mcburney
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