Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
  • A01G23/00—Forestry
  • A01G23/02—Transplanting, uprooting, felling or delimbing trees
  • A01G23/08—Felling trees
• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
  • A01G23/00—Forestry
  • A01G23/003—Collecting felled trees
  • A01G23/006—Log skidders

Definitions

• the present invention relates to a combination of a loader and a tree handling unit, which combination can be mounted on an agricultural tractor, its lifting gear or body.
• the handling unit (lopper, cutter) is fitted to the end of the boom mechanism to replace a clamp or grab. Then, however, the weight of a handling unit and the forces created by timber handling burden the load ⁇ er.
• the arrangement in a loader and tree handling unit combination of the in ⁇ vention is such that the tree handling unit is secured to the loader fastening member, the latter in turn being secured to the lifting means or body of an agricultural tractor.
• a conventional type load ⁇ er is fastened to the conventional three-point lifting mechanisms of an agricultural tractor or by means of a fitting mounted on the body of a machine.
• a tree handl ⁇ ing unit (lopper, cutter or the like) is fastened with bayonet catches to the loader fastening means in a manner that the operating range of a loader facilitates the use of a loader for delivering timber to said handling unit.
• the weight of a handl ⁇ ing unit and timber being handled acts near the work ⁇ ing machine and, thus, the handling forces do not burden the loader boom mechanism.
• Working can be further accelerated by using a loader with increased reach.
• a loader can be freely used for picking up the next tree for handling.
• FIG. 1 shows a diagrammatic view of a combination of a loader and a tree handling unit of the invention fastened to the rear end of an agricultural tractor.
• the loader sect ⁇ ion of a combination of loader and tree handling unit fastened to the rear end of an agricultural tractor is generally designated with reference numeral 1 and the tree handling unit generally with reference numeral 2.
• Loader 1 is fastened to the rear end of tractor 3 and to its conventional three-point lifting mechanisms 4.
• a fitting to the tractor body is also plausible.
• the fastening techniques are known as such in this field, so a detailed description thereof is not necessary in this context.
• the fastening member 5 of loader 1 is removably and as such conventionally, e.g. by means of suitable bayonet catches 6, fitted with a bracket beam 7.
• the tree handling unit 2 is by means of a support arm 8 pivotably mounted on the free end of bracket beam 7.
• the tree handling unit 2 carried by support arm 8 can be swung freely either around a vertical axis at the end of bracket beam 7 designated with reference numeral 9 or it can be swung hydraulically to a desired posit ⁇ ion and locked therein by means of conventional hydraul ⁇ ic means (not shown) .
• the tree handling unit 2 comprises a base designated by reference numeral 10, on which are adjustably mount ⁇ ed lopping tools 11 on either side of and surrounding a tree for carrying out the lopping.
• Base 10 is further fitted in a similar adjustable manner with two drive gears 12 for squeezing a tree trunk therebetween and pulling it in axial direction, said lopping tools 11 cutting off the branches of a tree trunk.
• a cutoff unit 13 chops the tree into logs of desired length.
• said tree handling unit 2 is pre ⁇ ferably swung circa 90 * from the position shown in the figure, a line of traction defined by lopping and pull ⁇ ing equipment 11, 12 extending crosswise relative to the lengthwise direction of tractor 3.
• a line of traction defined by lopping and pull ⁇ ing equipment 11, 12 extending crosswise relative to the lengthwise direction of tractor 3.

Landscapes

• Life Sciences & Earth Sciences (AREA)
• Biodiversity & Conservation Biology (AREA)
• Ecology (AREA)
• Forests & Forestry (AREA)
• Environmental Sciences (AREA)
• Shovels (AREA)
• Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8520059

Family Applications (1)

Country Status (3)

Families Citing this family (1)

• 1984
  • 1984-12-14 FI FI844947A patent/FI73570C/fi not_active IP Right Cessation
• 1985
  • 1985-12-13 EP EP19860900149 patent/EP0203983A1/en not_active Withdrawn
  • 1985-12-13 WO PCT/FI1985/000100 patent/WO1986003709A1/en unknown

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