Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01D—HARVESTING; MOWING
  • A01D25/00—Lifters for beet or like crops
  • A01D25/04—Machines with moving or rotating tools
  • A01D25/042—Machines with moving or rotating tools with driven tools
  • A01D25/044—Machines with moving or rotating tools with driven tools with driven rotating tools
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01D—HARVESTING; MOWING
  • A01D25/00—Lifters for beet or like crops
  • A01D25/005—Auxiliary devices for the lifters
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01D—HARVESTING; MOWING
  • A01D25/00—Lifters for beet or like crops
  • A01D25/04—Machines with moving or rotating tools
  • A01D25/042—Machines with moving or rotating tools with driven tools
  • A01D25/046—Machines with moving or rotating tools with driven tools with oscillating tools

Definitions

• This invention relates to the type of beet harvester which has dig ⁇ ging as well as lifting members.
• Beet harvesters are known which are equipped with a wheel which pushes the soil underneath and upwards in relation to a number of beets in a row, so as to permit the lifting members connected thereto to lift the beets in a facilitated and less energy-consum ⁇ ing way.
• a wheel which pushes the soil underneath and upwards in relation to a number of beets in a row, so as to permit the lifting members connected thereto to lift the beets in a facilitated and less energy-consum ⁇ ing way.
• Such a construction is shown in FR 2443.194 (1980).
• FIG. 5 shows part of a beet harvester with lifting members consisting of curved guiding rods in combination with a spider wheel (sometimes termed "oppel" wheel) , being disposed directly over the guiding rods.
• Claim 2 indicates an advantageous embodiment of a digging member with a view to passage through the soil.
• Claim 3 indicates an advantageous embodiment of a digging member in accordance with the present invention with a view to removing soil from a beet.
• Claim 4 indicates an advantageous embodiment of a digging member in accordance with the present invention with a view to a further re- moving of soil from a beet.
• Claims 5 and 6 indicate means for the reduction of the resistance to movement through the soil.
• Claim 7 indicates an advantageous carrying member for the digging members as set forth in the previous claims.
• Claim 8 indicates an advantageous embodiment of a carrying member with a view to reducing the soil pressure against a beet.
• Claim 9 indicates an embodiment of a carrying member which consti ⁇ tutes a compromise between the resistance to movement through the soil and the reduction of soil pressure against a beet.
• Claim 10 indicates an embodiment of a carrying member which is ad ⁇ vantageous because the amount of soil compacted has been mini ⁇ mized.
• Claim 11 indicates an advantageous pattern of motion of a digging member with a view to loosening a beet.
• Claim 12 indicates a further improvement of the loosening ability of a digging member by its moving at an appropriate frequency.
• Claim 13 indicates an advantageous lifting member as set forth in the present invention.
• Claim 14 indicates an advantageous embodiment of a lifting member as set forth in claim 13.
• Claim 15 indicates an appropriate propulsion of the lifting member which does not necessitate any particular propelling means.
• Claim 16 indicates an appropriate rotation of the lifting member by only a limited contribution of specific propelling means.
• Claim 17 indicates a manner of bringing about rotation of the lift ⁇ ing member which is advantageous when used in loose soil.
• FIG. 1 shows those members that are essential for a beet harvester in accordance with the present invention, shown in operation while lifting beets, and
• FIG. 2 shows a front view of the digging and the carrying members surrounding a beet
• FIG. 3 shows an isometric representation of the digging and carry ⁇ ing members in accordance with an embodiment of the invention.
• digging members (1) and a succeeding lifting member (2) are shown.
• the digging members (1) are carried by support members (3) in such a way that the rear part (6) is located higher in the ground (E) than the front part (7) .
• the lifting of a beet (5) is succeeded by it being grasped by a lifting member which is consti ⁇ tuted by a pair of spider wheels (2) .
• each beet is thus retained by means of four fingers (9) ; two from each wheel.
• the wheels are mounted in an oblique fashion with an acute angle opposite the direction of motion (B) , and at the point where the grasp of a beet is loosening, because the peripheries of the two wheels separate again, the beet is acted on by a rubber beater, disposed on a horizontal shaft (11) .
• the function of the rubber beater is that of throwing the beet onto a carousel wheel (12) which forms part of beet transportation means which may per se be generally known.
• FIG. 1 it is furthermore shown that the support members (3) are firmly mounted onto an arm (13) which in the shown embodiment has been mounted onto a horizontal shaft (14) .
• a reciprocating member (15) is connected to the arm (13) so as to make the digging member oscillate vertically during operation.
• Such cyclic movement during lifting has proved to be highly effective as to increasing the action of the digging member (1) in loosening and disengaging a beet from soil. Tests have proved that frequencies between 3 and 15 Hz are effective.
• FIG. 2 shows a front illustration of digging members (4) and sup ⁇ port members (3a, 3b) surrounding a beet (5) .
• the embodiment shows the support members approaching the shape of a beet so as to mini- mize the quantity of soil adhering to the beet.
• One object of the invention is to avoid soil compacting around the beet during loosening and lifting, and this is obtained by allowing both dig ⁇ ging and lifting members to push away soil from the beet during operation, with the result that the soil next to the beet is ex ⁇ posed to tensile stress which will loosen it.
• FIG. 3 shows the details of an embodiment of digging and carrying members in accordance with the present invention.
• the digging members (4) as well as the support members (3a, 3b) are pointed anteriorly in the direction of motion so as to most efficiently push away the soil on the outsides and underside rather than between the members where a beet will be.
• the distance between the two surfaces (8) , facing each other, of the digging members (4) is least at the front edge (7) , however so large as to permit the tip of a beet to pass through.
• This posterior increase of width contributes to reducing the soil pressure against the tip of the beet so as to avoid damage and a subsequent loss of beet ma ⁇ terial.
• the actual rounding on those edges facing forward in the direction of motion will be dependant on the acceptable amount of resistance to the digging and carrying members, and from an energy viewpoint this must be balanced against the advantage of reduced work in removing soil from the beets.

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• Life Sciences & Earth Sciences (AREA)
• Environmental Sciences (AREA)
• Harvesting Machines For Root Crops (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8097494

Family Applications (1)

Country Status (3)

Families Citing this family (4)

Family Cites Families (9)

• 1988
  • 1988-02-16 DK DK78288A patent/DK78288A/da not_active Application Discontinuation
• 1989
  • 1989-02-16 WO PCT/DK1989/000034 patent/WO1989007387A1/en not_active Application Discontinuation
  • 1989-02-16 EP EP19890902938 patent/EP0427720A1/en not_active Withdrawn

Non-Patent Citations (1)

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