EP0463703A1 - Procédé de montage d'un tube à partir d'une feuille pliable et ensemble de tube apte à être utilisé pour ce procédé - Google Patents

Procédé de montage d'un tube à partir d'une feuille pliable et ensemble de tube apte à être utilisé pour ce procédé Download PDF

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Publication number
EP0463703A1
EP0463703A1 EP91201622A EP91201622A EP0463703A1 EP 0463703 A1 EP0463703 A1 EP 0463703A1 EP 91201622 A EP91201622 A EP 91201622A EP 91201622 A EP91201622 A EP 91201622A EP 0463703 A1 EP0463703 A1 EP 0463703A1
Authority
EP
European Patent Office
Prior art keywords
tube
compressed
foil
foil material
shrink
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.)
Ceased
Application number
EP91201622A
Other languages
German (de)
English (en)
Inventor
Manfred Pikula
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.)
DEC Holding BV
Original Assignee
DEC Holding BV
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 DEC Holding BV filed Critical DEC Holding BV
Publication of EP0463703A1 publication Critical patent/EP0463703A1/fr
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B19/00—Packaging rod-shaped or tubular articles susceptible to damage by abrasion or pressure, e.g. cigarettes, cigars, macaroni, spaghetti, drinking straws or welding electrodes
    • B65B19/34—Packaging other rod-shaped articles, e.g. sausages, macaroni, spaghetti, drinking straws, welding electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/07—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles
    • B65D85/08—Containers, packaging elements or packages, specially adapted for particular articles or materials for compressible or flexible articles rod-shaped or tubular

Definitions

  • the invention relates to a method for arranging on location a tube from pliable foil material which is held in a tubular shape by one or more curved ribbings, for example in the form of a spirally wound wire, which tube is compressed in axial sense for transporting and storage.
  • Such tubes are typically manufactured from aluminium foil material which is very sensitive to deformation as a result of localized pressure. Since for transport purposes such a tube is compressed beforehand in axial sense in the factory where it is manufactured so that a small packet is obtained, this must be stretched to the normal operational length on site.
  • Such tubes serve for example for transporting gases, in particular hot gases, whereby the tube is usually also insulated by means of an additional, external second tube of insulating material, for example foam material or rock wool and the like. It has been usual up until now to stretch the tube manually, which always leads to damage of the tube periphery, which damage is almost impossible to repair.
  • the invention has for its object to improve a method of the type described in the preamble such that such damage no longer occurs.
  • the method is distinguished in that, prior to expanding, at least one annular body is arranged in or round the tube such that at a determined cross-section of the tube a radial pressure is exerted on the foil material on all sides, and the body is then moved along the tube in axial sense while a friction is applied by means of a pulling element in order to expand the tube.
  • the annular body is formed by a shrink foil which is arranged around the tube and which is arranged around the compressed tube by supplying heat. Arranging of the foil can take place easily because of the over-dimensioning but by supplying heat the shrink foil uniformly and closely envelopes the periphery of the tube. By connecting the shrink foil to the pulling element the desired radial pressure on all sides of the foil material can thus be exerted with the pulling element.
  • the shrink foil is arranged around the whole compressed tube as a sleeve. This simplifies arranging of the pulling element, since this can be fixed to the portion of the sleeve protruding outside the compressed tube.
  • the sleeve can moreover be provided with weak points so that, when the sleeve is simultaneously pulled to both sides, it can tear at the weak spots whereby the tube can be expanded to both sides.
  • the method lends itself particularly effectively for arranging the compressed tube with the annular body or the shrink foil sleeve in a second tube of insulating material prior to the expansion of the compressed tube.
  • the second tube of insulating material can be arranged in advance on site, wherein the pulling element only needs to be pulled at both ends to uniformly expand the sleeve, and therewith the tube of foil material, in the tube of foam material or the like. In this manner an insulated tube is obtained without damage which can moreover be laid very quickly.
  • the obtained packet can be delivered as a unit on site and be expanded there in the sequence: insulated tube and then the tube of foil material.
  • Designated with the numeral 1 is the tube of foil material which is made for example of aluminium material.
  • the aluminium foil is for instance 0.2 mm thick, which makes the tube very sensitive to external forces.
  • the tube is provided for this purpose inter alia with a spirally wound wire 2 which holds the foil material in a tubular form.
  • the tube of foil material has to be protected by a tube of insulating material 3 which is arranged therearound and which serves for instance to prevent heat loss from hot gases guided through the tube 1.
  • This can for example be a gas for a hot air heating system.
  • Such assemblies are coupled to each other in the usual manner and therefore form a pipe system.
  • the tube 1 For transportation from the factory to the location where the tubes must be placed, at least the tube 1 is compressed in axial sense, which is indicated by 4 in fig. 2. Since the foil material is easily pliable, the spirally wound wire 2 can easily be compressed into a packet of much smaller axial length.
  • this tube 3 which is designated by 5 in fig. 2, is held fixedly at either end by a pressure plate 6 against the head ends which can be mutually joined.
  • These plates 6 form for instance a part of a packing box 7, which can consist of any random material, for example cardboard, and be of sufficient strength to resist the compression forces on the insulating tube 5.
  • the invention therefore proposes to arrange a sleeve of shrink foil 10 around the compressed tube 4.
  • This shrink foil is tied together at both ends into a knot 11, to which a pulling cord 12 is arranged.
  • the shrink sleeve 10 which is provided beforehand with a weakened point between the knots 11, can be respectively cut through and pulled into two parts, wherein the left-hand portion in fig. 4 remains fastened to the fixed point 13 via cord 12, and the right-hand portion is pulled by the cord 12 in the direction of the arrow P1. Because of the friction forces occurring along the whole periphery of the tube 4 this is expanded without damage to the length of tube 3.
  • a following section of insulated tube can then be arranged.
  • the tube of foil material 1 can also be expanded without the insulating tube 3 by means of a sleeve 10.
  • the sleeve 10 does not need to have the form of a closed bag, but can also consist of one single annular body provided with means for tying on a pulling cord 12. Only one annular body may therein be sufficient but it is also possible to use two bodies which are pulled to either side in accordance with the method described with reference to figure 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
EP91201622A 1990-06-22 1991-06-24 Procédé de montage d'un tube à partir d'une feuille pliable et ensemble de tube apte à être utilisé pour ce procédé Ceased EP0463703A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9001433A NL9001433A (nl) 1990-06-22 1990-06-22 Werkwijze voor het aanbrengen respectievelijk verpakken van een buis uit plooibaar foliemateriaal.
NL9001433 1990-06-22

Publications (1)

Publication Number Publication Date
EP0463703A1 true EP0463703A1 (fr) 1992-01-02

Family

ID=19857298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91201622A Ceased EP0463703A1 (fr) 1990-06-22 1991-06-24 Procédé de montage d'un tube à partir d'une feuille pliable et ensemble de tube apte à être utilisé pour ce procédé

Country Status (2)

Country Link
EP (1) EP0463703A1 (fr)
NL (1) NL9001433A (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401075A1 (fr) * 1977-08-25 1979-03-23 Union Carbide Corp Troncon autoportant d'enveloppe plissee et comprimee et son procede de preparation
FR2623474A1 (fr) * 1987-11-25 1989-05-26 Spiragaine Sa Perfectionnement au dispositif pour le conditionnement de gaines tubulaires souples

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401075A1 (fr) * 1977-08-25 1979-03-23 Union Carbide Corp Troncon autoportant d'enveloppe plissee et comprimee et son procede de preparation
FR2623474A1 (fr) * 1987-11-25 1989-05-26 Spiragaine Sa Perfectionnement au dispositif pour le conditionnement de gaines tubulaires souples

Also Published As

Publication number Publication date
NL9001433A (nl) 1992-01-16

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