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EP1313645B1 - Vorrichtung und verfahren zum verpacken von bäumen in einem netz - Google Patents

Vorrichtung und verfahren zum verpacken von bäumen in einem netz Download PDF

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Publication number
EP1313645B1
EP1313645B1 EP01960194A EP01960194A EP1313645B1 EP 1313645 B1 EP1313645 B1 EP 1313645B1 EP 01960194 A EP01960194 A EP 01960194A EP 01960194 A EP01960194 A EP 01960194A EP 1313645 B1 EP1313645 B1 EP 1313645B1
Authority
EP
European Patent Office
Prior art keywords
tree
net
netting
netting tube
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01960194A
Other languages
English (en)
French (fr)
Other versions
EP1313645A1 (de
Inventor
Claus Thomsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1313645A1 publication Critical patent/EP1313645A1/de
Application granted granted Critical
Publication of EP1313645B1 publication Critical patent/EP1313645B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B67/00Apparatus or devices facilitating manual packaging operations; Sack holders
    • B65B67/12Sack holders, i.e. stands or frames with means for supporting sacks in the open condition to facilitate filling with articles or materials
    • B65B67/1266Sack holders, i.e. stands or frames with means for supporting sacks in the open condition to facilitate filling with articles or materials specially adapted for storing or dispensing sacks from a supply
    • B65B67/1277Sack holders, i.e. stands or frames with means for supporting sacks in the open condition to facilitate filling with articles or materials specially adapted for storing or dispensing sacks from a supply for dispensing flexible tubular material gathered up in the shape of a ring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00Packaging other articles presenting special problems
    • B65B25/02Packaging agricultural or horticultural products

Definitions

  • the invention relates to a device and a method for the netting of trees as featured in the preamble to claim 1 and claim 13.
  • Such devices comprise a supply opening that is configured at the end of a funnel-shape tube being, at its opposite end, connected to a cylindrical tube.
  • the device is positioned horizontally, the tree to be netted being pressed with its cut-off end first into the wide end of the funnel-shaped tube and continuing into the cylindrical tube.
  • a gripper claw or hook can be provided for pulling the tree through the cylindrical tube.
  • a sleeving or hose-shaped net has been pushed over the cylindrical tube, the end of the net being suspended beyond the end thereof.
  • the free end of the net is secured to the tree - either by a knot being tied at the end of the net or by the net being secured relative to the tree in any other manner, and the net is subsequently pulled off the cylindrical tube as the tree is pulled there through.
  • the net is cut off, which is preferably performed manually - and the tree is netted.
  • this device is associated with the drawback that - when used for large scale operation where a large number of trees are netted - three persons are usually required to complete the operation: one for feeding trees to the device, one for cutting off the sleeving, and one for discharging the netted trees from the device.
  • this prior art device is fairly long, partly due to the protracted length of the funnel-shaped tube and the cylindrical tube, and partly because the trees to be netted are pulled all the way through the funnel-shaped tube by means of a pulling device.
  • the friction that occurs between the tree to be netted and the inside of the cylindrical tube is also of a significant magnitude, in particular when the cylindrical tube is long as is the case with the prior art device.
  • the dependent claims feature particularly preferred embodiments that further improve the device according to the invention.
  • a preferred explanatory embodiment of a device for the netting of trees in accordance with the invention comprises a supply opening 1 provided, in the embodiment shown, in a plate 2 in the form of a circular opening having an inclined edge 3, whereby the supply opening 1 is caused to have a larger diameter on the forwardly oriented side of the plate 2 than on the opposite side.
  • a netting tube 4 is provided that consists of a circular tube having an internal diameter that corresponds essentially to the smallest diameter of the supply opening 1, ie corresponds to the dimension of the supply opening 1 in the plate 2 at the side that faces towards the netting tube 4.
  • the netting tube 4 is provided with a sleeve- or hose-shaped net 5 that is compressed in the longitudinal direction, as shown, which means that - as a starting point - it fills the netting tube 4 along the entire longitudinal expanse thereof.
  • Such compression of the net 5 enables positioning of many metres of net sleeving 5 on the comparatively short netting tube 4.
  • the netting tube 4 is provided with a flange 6 that constitutes an end stop for the net 5, whereby it is kept on the netting tube 4.
  • the end stop of the net 5 is constituted by the plate 2 with the supply opening 1, the plate 2 being, however, located a short distance from the netting tube 4 to allow the net 5 to be pulled around the front end 7 of the netting tube 4, whereby this end of the net 5 can be bent into the netting tube 4, as shown in Figure 2.
  • the distance between the front edge 7 of the netting tube 4 and the plate 2 has exactly such expanse that there is room for the net 5 to be located there between. If a-commonly used net 5 of nylon is used, the distance between the netting tube 4 and the plate 2 needs only be about 1 mm.
  • the netting tube 4 is, at the front edge 7 provided with an outwardly protruding bead 8 that causes the net 5 to be stretched when it is pulled across the bead 8.
  • an outwardly protruding bead 8 that causes the net 5 to be stretched when it is pulled across the bead 8.
  • a pull device is provided for pulling a tree to be netted through the supply opening 1 and the netting tube 4.
  • the pulling device comprises two gripper claws 9, each of which being securely attached to a rotatable tube 10 via a lever 11.
  • a pull bar 12 is pivotally mounted that is, at its opposite end, connected to a hydraulic cylinder 13 via a connector element 14.
  • this construction causes the gripper claws 9 to first be pulled towards each other, optionally around the cut-off end of a tree, following which the entire pull device will be displaced to the right in Figures 1 and 2.
  • a cutter device 15 is provided immediately after the netting tube 4, said cutter device 15 comprising, in the embodiment shown, two rotatably mounted and partially overlapping cutter blades 16 that efficiently cut the net 5 off when they are conveyed downwards through an empty net 5 after a tree has been pulled through the device. Underneath the cutter blades 16, two conical rollers 17,18 are mounted that have between them a narrow slot. These rollers 17,18 rest against the netted tree as it leaves the netting tube 4, and the moment the top of the tree has travelled past the rollers and there remains only net 5, the cutter device drops downwards due to its weight, the net 5 penetrating upwards between the rollers 17 and 18, and the cutter blades 16 cutting off the net 5.
  • the cutter device is rotatably mounted about an axis parallel with the longitudinal axis of the netting tube, which is not, however, shown in further detail.
  • a cutter device configured in this manner is of course not restricted to use in connection with a device for the netting of trees according to the present invention, but it may just as well be useful in connection with other devices for the netting of trees.
  • a conveyor belt 19 is provided that is able to transport the netted tree away from the netting device as such.
  • the device for the netting of trees is adjusted as shown in Figure 2, ie with the front end of the net 5 within the netting tube 4 and the gripper jaws 9 also within the netting tube 4, they being preferably located at the inner face thereof.
  • the cut-off end of a tree to be netted is now conveyed into the supply opening 1 and further into the netting tube 4, where it is enclosed by the net 5, whose end is loosely suspended within the netting tube 4.
  • the hydraulic cylinder 13 is activated whereby the gripper jaws 9 are caused to engage with the cut-off end of the tree as explained above.
  • the pull device is able to pull the entire tree through the netting tube 4, but preferably the pull device stops when the thickest portion of the tree has been pulled through, since it is possible to pull the remainder of the tree through by use of less force.
  • the device according to the invention can be made significantly shorter than the known devices where a pull device pulls the entire tree through the funnel-shaped tube and the cylindrical tube.
  • a second conveyor belt may be provided above the conveyor belt 19, whereby it is possible to sandwich the tree between the two conveyor belts, thereby generating more friction between the conveyor belts and the tree.
  • This additional conveyor belt may be vertically displaceable, which means that it is able to engage with trees of varying thicknesses.
  • the rate of the conveyor belt 19 corresponds to the rate of the pull device whereby the conveyor belt 19 cooperates with the pull device when the tree drops thereon.
  • the conveyor belt 19 may be configured such that it runs at an increased rate, eg 2.5 times faster, when the pull device has let go of the cut-off end of the tree and is moved back to its starting position, whereby the tree is removed from the netting tube 4 more quickly.
  • the netting tube 4 is, in the preferred embodiment, provided, at the front edge 7, with an outwardly protruding bead 8 that causes the net 5 to be stretched when pulled across the bead 8.
  • the bead 8 has an outer diameter that corresponds essentially to the maximum diameter of the net sleeving 5, whereby additional resistance against the net 5 being pulled over the edge 7 is generated, with the result that the net 5 within the netting tube 4 is further tightened in the longitudinal direction when a tree along with the net 5 is pulled through the netting tube 4.
  • tight netting of the tree is accomplished.
  • the shown and described device for the netting of trees is provided with a hydraulic pull device for pulling trees through the device.
  • a hydraulic pull device for pulling trees through the device.
  • pull devices eg a mechanical device, or to altogether omit same and pull the trees through the device manually.
  • the shown and described device can be constructed as a separate unit or it may be constructed for mounting on eg a tractor or other forestry machinery. Likewise, it may be combined with other units, such as eg a palleting unit to which the conveyor belt may convey the netted trees.
  • the netting tube can be configured as a replaceable cassette, which means that it can readily be replaced when the net on the first netting tube has been used up.
  • a winding device can be mounted instead of the netting tube, whereby the same device can also be used for tying trees.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Catching Or Destruction (AREA)
  • Harvesting Machines For Specific Crops (AREA)
  • Housing For Livestock And Birds (AREA)
  • Wire Processing (AREA)
  • Basic Packing Technique (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Claims (17)

  1. Vorrichtung zum Verpacken von Bäumen in Netze, wobei die Vorrichtung eine Zuführöffnung (1) und eine Einrichtung zum Anlegen einer Netzhülle oder eines -wickels (5) um einen Baum umfasst, wenn der Baum durch die Vorrichtung hindurchgefördert wird, dadurch gekennzeichnet, dass die Vorrichtung für das Anlegen einer Netzhülle (5) um den Baum von der Zuführöffnung (1) getrennt angeordnet ist und ein Netzrohr (4) aufweist, an dessen Außenseite das Netz (5) angeordnet ist, wobei das Ende des Netzes (5) um das auf die Zuführöffnung (1) hinzeigende Ende (7) des Netzrohrs (4) gelegt ist und sich in das Netzrohr (4) hineinerstreckt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Netzrohr (4) eine Innenabmessung hat, die im Wesentlichen der Abmessung des kleineren Endes der Zuführöffnung (1) entspricht.
  3. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass das Netzrohr (4) an demjenigen Ende (7), das in Richtung auf die Zuführöffnung (1) hinzeigt, mit einem nach außen gerichteten Rand (8) ausgebildet ist, dessen Außendurchmesser im Wesentlichen der größtmöglichen gestreckten Abmessung der Netzhülle (5) entspricht.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass eine Zugeinrichtung zum Ziehen eines Baumes durch die Vorrichtung hindurch vorgesehen ist, wobei diese wenigstens eine Greiferklaue (9) aufweist, die das abgeschnittene Ende des Baums innerhalb des Netzrohres (4) erfassen kann und durch das Netzrohr (4) hindurch verschiebbar ist.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Zugeinrichtung einen Antriebsmechanismus aufweist, der, wenn eine Kraft angelegt wird, zunächst sicherstellt, dass die Greiferklaue (9) mit dem abgeschnittenen Ende des Baums in Eingriff tritt, woraufhin dieser die Greiferklaue (9) zusammen mit dem Baum durch das Netzrohr (4) schiebt bzw. bewegt.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass der Antriebsmechanismus einen Hydraulikzylinder (13) umfasst.
  7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass ein Schneidgerät vorgesehen ist, um das Netz (5) abzuschneiden, wenn ein Baum durch die Vorrichtung hindurch gezogen worden ist.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die Schneideinrichtung zwei drehbar angeordnete und sich teilweise überlappende Schneidklingen (16) aufweist.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass die Schneideinrichtung um einen Schaft drehbar angeordnet ist, der zum Netzrohr (4) parallel ausgerichtet ist und dass sie mit konischen Rollen (17, 18) versehen ist, die auf dem im Netz verpackten Baum ruhen, wobei ein Schlitz zwischen den Rollen (17, 18) vorgesehen ist, der ermöglicht, dass ein leeres Netz (5) zwischen den Rollen (17, 18) hindurchgelangen kann, wodurch die Schneideinrichtung abgesenkt werden und das Netz (5) abschneiden kann.
  10. Vorrichtung nach irgendeinem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass ein Förderband (19) hinter dem Ende des Netzrohres (4) angeordnet ist, welches von der Zuführöffnung (1) wegzeigt, wobei das Förderband (19) zum Abtransportieren des Baumes von dem Netzrohr (4) weg ausgebildet ist.
  11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass das Förderband (19) so ausgestaltet ist, dass es mit einer Geschwindigkeit arbeitet, die der Geschwindigkeit der Zugeinrichtung bei ihrer vom Netzrohr (4) weggerichteten Bewegung entspricht.
  12. Vorrichtung nach Anspruch 11, dadurch gekennzeichnet, dass die Geschwindigkeit des Förderbandes (19) vorzugsweise auf die 2,5 -fache Größe erhöht wird, wenn die Zugeinrichtung zum Netzrohr (4) hin transportiert wird.
  13. Verfahren zum Verpacken von Bäumen in Netze, wobei dieses Verfahren die folgenden Stufen aufweist:
    - Anordnung eines Baums am weiten Ende einer Zuführöffnung (1);
    - Verschieben des Baumes durch die Zuführöffnung (1);
    - Anbringen eines Netzwickels (5) um den Baum;
    - Abschneiden des Netzes (5),
    dadurch gekennzeichnet, dass das Netz (5) innerhalb eines Netzrohrs (4) angelegt wird, welches unmittelbar hinter der Zuführöffnung (1) angeordnet ist.
  14. Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass der Hauptteil des Netzes (5) außerhalb des Netzrohres (4) angeordnet ist, wobei das Ende, welches zur Zuführöffnung (1) hinzeigt, um die Kante (7) des Netzrohrs (4) gelegt ist und während des Vorgangs des Verpackens durch das Netzrohr (4) zusammen mit dem Baum durch das Netzrohr (4) bewegt wird, während ein weiteres Netz (5) über die Kante (7) des Netzrohrs (4) hinausgezogen wird.
  15. Verfahren nach einem der Ansprüche 13 oder 14, dadurch gekennzeichnet, dass die Zugeinrichtung um das abgeschnittene Ende des Baums im Inneren des Netzrohrs (4) in Eingriff tritt und diesen dort hindurch zieht.
  16. Verfahren nach Anspruch 15, dadurch gekennzeichnet, dass die Zugeinrichtung den Baum durch das Netzrohr (4) zieht, und zwar lediglich bis der dickste Teil des im Netz verpackten Baumes durch das Netzrohr (4) hindurchgegangen ist, woraufhin folgend er durch Einsatz geringerer Kräfte weiter gezogen wird.
  17. Verfahren nach Anspruch 16, dadurch gekennzeichnet, dass wenigstens ein Förderband (19) den Baum weiterzieht, wenn der dickste Teil des Baumes durch das Netzrohr (4) hindurchgegangen ist.
EP01960194A 2000-08-16 2001-08-16 Vorrichtung und verfahren zum verpacken von bäumen in einem netz Expired - Lifetime EP1313645B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK200001222A DK174177B1 (da) 2000-08-16 2000-08-16 Indretning og fremgangsmåde til netning af træer
DK200001222 2000-08-16
PCT/DK2001/000543 WO2002014155A1 (en) 2000-08-16 2001-08-16 A device and a method for the netting of trees

Publications (2)

Publication Number Publication Date
EP1313645A1 EP1313645A1 (de) 2003-05-28
EP1313645B1 true EP1313645B1 (de) 2007-02-14

Family

ID=8159655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01960194A Expired - Lifetime EP1313645B1 (de) 2000-08-16 2001-08-16 Vorrichtung und verfahren zum verpacken von bäumen in einem netz

Country Status (8)

Country Link
US (1) US20040035090A1 (de)
EP (1) EP1313645B1 (de)
AT (1) ATE353821T1 (de)
AU (1) AU2001281750A1 (de)
CA (1) CA2424862A1 (de)
DE (1) DE60126623T2 (de)
DK (2) DK174177B1 (de)
WO (1) WO2002014155A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2578497A1 (de) 2011-10-05 2013-04-10 Bredsgaard A/S Vorrichtung zum Verpacken von Weihnachtsbäumen in Netzabdeckungen

Families Citing this family (6)

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US7581369B2 (en) 2006-06-29 2009-09-01 Tipper Tie, Inc. Automated clipping packaging apparatus and associated devices, methods, systems and computer program products suitable for packaging whole muscle
DE102008061530A1 (de) * 2008-12-10 2010-06-17 Wincor Nixdorf International Gmbh Verfahren zum Befüllen mindestens eines dünnwandigen Transportbehälters mit mindestens einem Wertgegenstand und Vorrichtung zur Aufbewahrung mindestens eines Wertgegenstandes
CN108408116A (zh) * 2018-05-14 2018-08-17 福建钜闽机械有限公司 一种花束包装机
NL1044603B1 (nl) * 2023-05-09 2024-11-25 Devoma Machines B V Verpakking voor het verpakken van een wortelkluit
NL1044601B1 (nl) * 2023-05-09 2024-11-25 Devoma Machines B V Inrichting en werkwijze voor het verpakken van een wortelkluit
NL1044874A (nl) * 2023-05-09 2024-11-25 Devoma Machines B V Verpakking, inrichting en werkwijze voor het inpakken van een wortelkluit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2578497A1 (de) 2011-10-05 2013-04-10 Bredsgaard A/S Vorrichtung zum Verpacken von Weihnachtsbäumen in Netzabdeckungen

Also Published As

Publication number Publication date
ATE353821T1 (de) 2007-03-15
WO2002014155A1 (en) 2002-02-21
DE60126623T2 (de) 2007-06-06
CA2424862A1 (en) 2002-02-21
US20040035090A1 (en) 2004-02-26
DK174177B1 (da) 2002-08-12
DK1313645T3 (da) 2007-06-04
AU2001281750A1 (en) 2002-02-25
EP1313645A1 (de) 2003-05-28
DE60126623D1 (de) 2007-03-29
DK200001222A (da) 2002-02-17

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