WO1991003155A1 - Tuyaux d'irrigation et procede ainsi que dispositif pour leur fabrication - Google Patents

Tuyaux d'irrigation et procede ainsi que dispositif pour leur fabrication Download PDF

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Publication number
WO1991003155A1
WO1991003155A1 PCT/AT1990/000089 AT9000089W WO9103155A1 WO 1991003155 A1 WO1991003155 A1 WO 1991003155A1 AT 9000089 W AT9000089 W AT 9000089W WO 9103155 A1 WO9103155 A1 WO 9103155A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
filter material
lips
filter
pipe
Prior art date
Application number
PCT/AT1990/000089
Other languages
German (de)
English (en)
Inventor
Alfred Van Der Meulen
Original Assignee
Meulen Alfred V D
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meulen Alfred V D filed Critical Meulen Alfred V D
Publication of WO1991003155A1 publication Critical patent/WO1991003155A1/fr

Links

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
    • A01G25/00—Watering gardens, fields, sports grounds or the like
    • A01G25/06—Watering arrangements making use of perforated pipe-lines located in the soil

Definitions

  • the invention relates to irrigation pipes for watering plants, in particular for root irrigation.
  • Such tubes have an essentially circular cross section and are provided with through-openings, the through-openings being covered with filter material to regulate the water outlet and to prevent roots from growing in.
  • Irrigation pipes of this type are known in various forms.
  • the object of the invention is to create a simply constructed and easy to manufacture tube that can be used in a reliable manner, i.e. can be damaged as little as possible during operation, the irrigation water can escape with a good dose and prevents roots from growing in.
  • a pipe for watering plants in particular for root irrigation, with an essentially circular cross section and with at least one passage opening, the passage opening (s) being equipped with filter material, e.g. from tissue, mineral fibers or the like. are covered, which is located on the outside of the tube and is delimited on both sides by longitudinal lips, the opposite longitudinal sides of which delimit a space within which the through-openings are located, according to the invention achieved in that the lips extend from the outer surface of the tube at an acute angle this go towards each other and that the filter material formed by a filter belt and / or its support protrudes between the outer surface of the tube and the lips.
  • filter material e.g. from tissue, mineral fibers or the like.
  • the filter band covering the diaphragm opening is firmly held by the lips or welded or glued to them, secured against slipping and damage both during handling and in the ground, and enables the pipe to be manufactured very simply.
  • the lips facing each other extend from a circumferential half of the tube and the area of the filter belt in the space between the lips in front of the through-openings is preferably thickened.
  • the thickened area of the filter band located in front of the through-openings consists of filter material and the parts of the filter band protruding between the lips and the tube of possibly self-adhesive or stickable, in particular water-impermeable shark strips, for example made of plastic. are formed. - 2 -
  • a method for producing this tube which tube is extruded from an extruder and is provided in a subsequent station with passage openings, which are then advantageously covered with filter material when the tube moves in the longitudinal direction, is characterized in that the tube with molded lips ext ' is ruddered and that a filter belt is inserted between the lips and the tube, preferably simultaneously with the extrusion, as the filter material covering the through openings.
  • the tube with the molded lips is thus quickly and easily extruded, in particular from thermoplastic material, and during the extrusion the passage openings are made and the filter band is inserted between the lips. It can be provided that the filter band is welded or glued to the tube and / or the lips during insertion or immediately afterwards.
  • the area of the filter belt lying between the lips in front of the passage openings remains free; the lips are pressed against the lateral areas of the filter belt and, if necessary, glued or welded to the filter belt.
  • the lips can be pivotably connected to the tube via thin webs.
  • a device for the production of such pipes is characterized in that the ⁇ extruder head has a shaped head for extruding pipes with molded lips, that the perforation device is followed by a feed or contact device for a band of filter material and that this device is a Device for pressing and / or welding or gluing the lips and / or the tube with the filter band is assigned or arranged downstream.
  • a tube of the type mentioned at the outset is characterized in that the passage openings are arranged in a recessed manner relative to the outer surface of the tube and are each covered with a piece of filter material. It is also expedient if the through-openings in the bottom region of recesses, in particular circular-cylindrical recesses formed in the tube, for example by pressing lie and that the filter material pieces are adapted to the shape of the depressions and are inserted or inserted into them.
  • the recessed mounting of the through openings ensures that the filter material does not protrude or does not protrude too much beyond the outer surface of the tube and is therefore less exposed to damage. Moreover, it is not necessary to provide filter material over the entire length of the tube, but only locally in front of or around the passage openings.
  • the depressions can have different shapes.
  • the cross-sectional shape of the depressions in plan view can be circular, elliptical, rectangular or the like.
  • the cross section of the depressions perpendicular to the Rohrlangs ⁇ axis can be rectangular, trapezoidal, triangular or the like. his.
  • at least the inner surface or the surface of the filter material lying against the outer tube wall is adapted to the shape of the recess, so that a good contact is achieved.
  • the pieces of filter material are advantageously glued or welded to the outer tube wall or to the outer wall of the depression.
  • the adhesive can already be attached to the filter material pieces and a connection can be made by pressing the filter material pieces against the pipe outer surface.
  • a method for producing this embodiment of a tube, which tube is extruded from an extruder and is provided in a subsequent station with passage openings, which are then advantageously covered with filter material when the tube moves in the longitudinal direction, is characterized according to the invention in that preferably at the same time as the passage openings are formed, the tube region lying around the passage openings is deepened and pieces of filter material covering or covering the passage openings are inserted or applied. It is particularly advantageous if the formation of the depression and the through-opening is carried out in one work step, for example by means of an appropriately shaped stamp.
  • the passage opening is then covered with a piece of filter material, it being possible in particular to deliver the pieces of filter material glued to a carrier tape, in particular glued on, and to remove the carrier tape after the filter material pieces have been attached to the pipe. With this procedure, pipe production can be carried out extremely quickly without fear of damage to the filter material on the finished pipe.
  • a device for carrying out this method is characterized in accordance with the invention in that the perforation device is assigned an attention for the formation of depressions in the tube around the passage openings, that the feed device for the filter material has a storage for arranged on a carrier tape
  • Pieces of filter material include that a device for controlling the synchronism between the carrier tape and the pipe extruded from the extruder head is provided, that a pressing device for the pieces of filter material is provided on the pipe or the depressions formed in the pipe and that a take-off device for the carrier film is advantageously provided.
  • a further tube is arranged in the interior of the tube, which is connected via holes to the interior of the tube and into which the passage openings open. It is expedient if, with the formation of the passage openings, holes are also made to connect the interior of the further tube with the interior of the tube.
  • Fig. 3 shows a tube 1 which is formed with two mutually opposite lips 10. 5 shows, such a tube 1 can be formed with an extruder head 19 with a corresponding extruder insert.
  • 1 perforations 3 are formed in the tube 1 by means of a perforation device 4 with a suitable punch or mandrel 4.
  • the filter tape 7 drawn off from a roller 23 is inserted between the lips 10, whereupon the lips 10, which are still flexible or have been made flexible again after further heating, Attention 9 bent or pressed against the tube, so that there is a tube, as shown in Fig.
  • the lips 10 carried by webs or thinners 20 can be seen in particular in FIG. 3, which preferably terminate flatly with or protrude above the outer surface of the filter belt 7. It is preferred if the angle is less than 25, preferably less than 20, or if the curvature of the lips 10 essentially follows the tube circumference.
  • the filter belt shown in Fig. 1 consists e.g. from glass fiber fabric, mineral fibers, scrims, felt, etc; filter materials of this type are known to the person skilled in the art. Filter tapes can be used which have the same thickness over their width or have a thickening 11, in particular in the middle, as shown in FIGS. 1 and 2.
  • Fig. 2 shows a filter belt which consists of filter material in the middle, while the edge parts 11 'e.g. consist of plastic material or are formed by adhesive tapes which are connected to the filter material 11 in the region 12.
  • the edge regions 11 ' can carry adhesive layers 22 or be designed to be weldable.
  • the device 10 presses the lips 10 onto the tube 1 and the filter tape 7 is welded to the lips 10 and / or the tube 1 or bonded by pressure.
  • thermoplastic any extrudable plastics can be used as the material for the tube; thermoplastic is used in particular.
  • the device shown in FIG. 5 for producing the tube comprises corresponding devices 23 for supplying the filter band 7, for pressing the lips 10 and for perforation 4, the creation of which is reasonable for the person skilled in the art.
  • the finished pipe can be rolled up or, if it is manufactured as a bar, can be bundled and transported accordingly.
  • the shape of the passage openings 3 formed in the tubes or of the openings 31 mentioned later can be chosen as desired; Corresponding stamps 4 'on the perforation device 4 can be exchanged. It is also advantageous if a control device (not shown) is provided which coordinates the movement of the tube 1 from the extrusion head 19 and the movement of the supplied filter belt 7.
  • tubes 1 according to the invention in the interior of which a further tube 30 has been arranged or co-extruded.
  • Enormous pressure losses occur in all of the irrigation pipes, particularly in the case of large pipe lengths. The longer the pipes are, the lower the water pressure and thus the amount of water outlet compared to the outlet at the beginning of the pipes.
  • the second pipe 30 with a relatively small diameter is integrated in the irrigation pipe 1.
  • This pressure compensation tube 30 is integrated so that the water first flows in the irrigation tube 1 and then passes through outlet openings 31 into the compensation tube 30. Only from there can the water pass through the openings 3 into the filter belt 11 and then into the earth.
  • the hollow space in the compensation tube 30 acts as a thickening condenser and, due to the different ratio of the tubes of the tube 1.31 and the different ratio of the number of bores 3.31, as a vortex compensating means, and thus primarily compensating for the Longitudinal pressure loss »n in the tube 1.
  • the holes 31 are produced simultaneously with the opening opening Tg 3 with the perforation device 4 or 4 '. However, only through openings 3 can be produced with the perforation device. It is advantageous to whom holes are formed in a predetermined alternation or sequence, or only passage openings, where appropriate at least part, preferably all, of which passage openings which have been produced at the same time are closed again.
  • a closure device 32 is provided, which e.g.
  • the tube 1 extruded from the extrusion head 19 is perforated with a particularly heatable punch or mandrel 4 'of a perforation device 4 and with a punch 4 " ⁇ * • Provide a depression 2.
  • the punches 4 'and 4 " can be in one piece.
  • Such a tube 1, provided with a passage opening 3 in a depression 2, is shown schematically in FIG. 8.
  • This tube 1 can also, as already described 15 are provided with pieces of filter material which are delivered on a carrier tape 5 from a storage roll 18 to the depressions 2.
  • the carrier tape 5 with the filter pieces 6 arranged thereon is shown in plan view in FIGS With a take-off device 16, in particular a take-off roller, the carrier tape 5 can be removed from the tube 1 or from the filter pieces 6 after their connection with the 5 pipe 1 are withdrawn.
  • the filter pieces 6 already carry an appropriate adhesive, so that they e.g. can be glued by pressure to the tube 1 or in the recess 2.
  • the distances and / or diameters of the perforations 3 or of the openings 31 along the tubes 1 can be varied or adapted to the desired distances which have proven useful for irrigating various plant crops.
  • FIG. 11 shows schematically in section a filter piece 6 in a depression 2, which is connected to the base area of the depression 2 at points 13 by gluing or welding. It is entirely possible to provide further welding or gluing points 13 or, except for the passage opening 3, to glue the filter material to the recess 2 over the entire surface.
  • FIG. 12 shows an embodiment in which a filter material piece 6, which is triangular in section, is introduced into a recess 2, which is likewise triangular in section.
  • FIG. 13 shows a depression in which the tube wall is pressed in and a piece of filter material 6 corresponding to the shape of the depression is inserted.
  • FIG. 14 shows a tube with a longitudinal groove 15, which connects the depressions 2, so that, if necessary, also of a filter material or carrier strip or the like. existing connection 14 connected Pieces of filter material 6 can be inserted into the depressions 2.
  • the tubes 1 and 30 are formed with a correspondingly selectable wall thickness and can also have a cross-section deviating from a circular shape. The thickness and porosity of the filter material can also be freely selected.
  • the recesses 2 in the tube 1 can also be formed after or before the openings 3 are made, or the openings 3 and 31 can also have different area dimensions.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

La présente invention se rapporte à un tuyau pour l'irrigation de plantes, en particulier pour l'irrigation de racines, comportant une section sensiblement circulaire et des ouvertures de passage, ces dernières étant recouvertes de matière filtrante fixée sur la face externe du tuyau, caractérisé en ce que le tuyau (1) porte des lèvres longitudinales (10) dont les grands côtés opposés forment un interstice à l'intérieur duquel se trouvent les ouvertures de passage (3), et en ce que les lèvres (10) renferment ou retiennent une bande filtrante (7, 11), par exemple en tissu, fibres minérales ou similaire, ou en ce que les ouvertures de passage (3) sont disposées en retrait par rapport à la surface externe du tuyau (1) et recouvertes chaque fois d'un élément (6) en matière filtrante.
PCT/AT1990/000089 1989-09-08 1990-09-07 Tuyaux d'irrigation et procede ainsi que dispositif pour leur fabrication WO1991003155A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT210689 1989-09-08
ATA2106/89 1989-09-08

Publications (1)

Publication Number Publication Date
WO1991003155A1 true WO1991003155A1 (fr) 1991-03-21

Family

ID=3527889

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1990/000089 WO1991003155A1 (fr) 1989-09-08 1990-09-07 Tuyaux d'irrigation et procede ainsi que dispositif pour leur fabrication

Country Status (4)

Country Link
AU (1) AU6291690A (fr)
IL (1) IL95589A0 (fr)
WO (1) WO1991003155A1 (fr)
ZA (1) ZA907095B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816742A (en) * 1996-09-30 1998-10-06 Cordewener; Charles H. Permeable conduits for disbursing fluids
WO2018014055A1 (fr) * 2016-07-21 2018-01-25 Thomas Eichenauer Natte d'irrigation pour la distribution d'eau
US10182535B2 (en) * 2016-01-05 2019-01-22 Amir Cohen Mesh based irrigation system
WO2019207455A1 (fr) * 2018-04-23 2019-10-31 Netafim Ltd Tuyau d'irrigation

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798768A (en) * 1955-12-23 1957-07-09 Babin Benton Paul Soil moistening apparatus
GB903304A (en) * 1959-01-14 1962-08-15 Windolite Ltd Improvements in or relating to devices for the spraying of water or other fluids
FR1305083A (fr) * 1961-11-07 1962-09-28 Nobel Bozel Tuyau souple avec des orifices dans sa paroi, par exemple pour arroser des cultures jardinières
US3860179A (en) * 1971-02-17 1975-01-14 Erminio Natale Costa Drip irrigation
US3903929A (en) * 1971-11-10 1975-09-09 Anjac Plastics Irrigation conduit
US4061272A (en) * 1975-06-20 1977-12-06 Winston Emanuel A Irrigation device
US4094466A (en) * 1976-01-15 1978-06-13 Deromano Oscar Irrigation apparatus
FR2400836A1 (fr) * 1977-08-23 1979-03-23 Cellsystem Ag Installation pour irriguer et assecher le sol et applications de celle-ci

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798768A (en) * 1955-12-23 1957-07-09 Babin Benton Paul Soil moistening apparatus
GB903304A (en) * 1959-01-14 1962-08-15 Windolite Ltd Improvements in or relating to devices for the spraying of water or other fluids
FR1305083A (fr) * 1961-11-07 1962-09-28 Nobel Bozel Tuyau souple avec des orifices dans sa paroi, par exemple pour arroser des cultures jardinières
US3860179A (en) * 1971-02-17 1975-01-14 Erminio Natale Costa Drip irrigation
US3903929A (en) * 1971-11-10 1975-09-09 Anjac Plastics Irrigation conduit
US4061272A (en) * 1975-06-20 1977-12-06 Winston Emanuel A Irrigation device
US4094466A (en) * 1976-01-15 1978-06-13 Deromano Oscar Irrigation apparatus
FR2400836A1 (fr) * 1977-08-23 1979-03-23 Cellsystem Ag Installation pour irriguer et assecher le sol et applications de celle-ci

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5816742A (en) * 1996-09-30 1998-10-06 Cordewener; Charles H. Permeable conduits for disbursing fluids
US10182535B2 (en) * 2016-01-05 2019-01-22 Amir Cohen Mesh based irrigation system
WO2018014055A1 (fr) * 2016-07-21 2018-01-25 Thomas Eichenauer Natte d'irrigation pour la distribution d'eau
US11350580B2 (en) 2016-07-21 2022-06-07 Thomas Eichenauer Ground mats for water distribution
WO2019207455A1 (fr) * 2018-04-23 2019-10-31 Netafim Ltd Tuyau d'irrigation
CN112004409A (zh) * 2018-04-23 2020-11-27 耐特菲姆有限公司 灌溉管
US11193621B2 (en) 2018-04-23 2021-12-07 Netafim, Ltd. Irrigation pipe having tensile strip

Also Published As

Publication number Publication date
ZA907095B (en) 1991-06-26
IL95589A0 (en) 1991-06-30
AU6291690A (en) 1991-04-08

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