WO2018228650A1 - Tube flexible et élastique pour raccords mobiles de ventilation - Google Patents

Tube flexible et élastique pour raccords mobiles de ventilation Download PDF

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Publication number
WO2018228650A1
WO2018228650A1 PCT/DK2018/050136 DK2018050136W WO2018228650A1 WO 2018228650 A1 WO2018228650 A1 WO 2018228650A1 DK 2018050136 W DK2018050136 W DK 2018050136W WO 2018228650 A1 WO2018228650 A1 WO 2018228650A1
Authority
WO
WIPO (PCT)
Prior art keywords
tubing
flexible
textile
corrugations
create
Prior art date
Application number
PCT/DK2018/050136
Other languages
English (en)
Inventor
Mathilde Ridder-Nielsen
Original Assignee
Ridder Nielsen Mathilde
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 Ridder Nielsen Mathilde filed Critical Ridder Nielsen Mathilde
Publication of WO2018228650A1 publication Critical patent/WO2018228650A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/02—Hoses, i.e. flexible pipes made of fibres or threads, e.g. of textile which may or may not be impregnated, or provided with an impermeable layer, e.g. fire-hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/112—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements embedded in the wall

Definitions

  • the invention relates to a flexible, soft, axially collapsible and stretchable tubing consisting of a full length element with corrugations (K) internally and externally along the tubing, which at specific deformations, such as bending or compression of the tubing, are compressed and cause a constant aperture to be upheld in the cross-section of the tubing.
  • K corrugations
  • a flexible tubing of said kind is known from a number of products, for example GB 709,055A, being easily foldable longitudinally, and a bendable tubing system comprising a flexible, tubular wall formed from at least two soft layers of, for example, rubber, and a reinforcing strand of hard material, for example metal.
  • the reinforcing strand constitutes the supporting structure and forms an axial helix, disposed and fixated between the layers, such that the soft layers constitute a continuous expanse between the coils of the helix.
  • this type of flexible tubing exhibits an axial section with corrugations internally and externally along the tubing, controlled by the supporting structure.
  • a flexible tubing of said kind is also known from US 2,011,277,865A1, said tubing consisting of an element of one elastic material, for example rubber, with internally as well as externally corrugated walls in both relaxed and impacted state.
  • the flexible tubing construction in one elastic material necessitates a comparatively thick structure relatively to its diameter in the aperture in order to avoid collapse in the aperture at bending.
  • the sturdy structure imparts a certain rigidity to the material, causing the flexibility and softness of the tubing at bending or other types of impacts to be restricted.
  • air systems in the fields of ventilation, air conditioning, and suction.
  • a flexible tubing without evaporations from, for example, plasticizers.
  • Said object is achieved by constructing the flexible tubing with a soft structure of textile (T).
  • the textile is processed and shaped to form a tubing with internal and external corrugations (K) along the tubing in relaxed as well as impacted state, creating controlled bending, stretching (U) and compression (Z) of the tubing.
  • By folding the textile such as to obtain corrugations (K) along the tubing, the rigidity of the textile is strengthened, thereby enabling it to function as supporting structure in the tubing walls.
  • the textile is treated with an elastic material such as, for example, latex (L) or silicone.
  • an elastic material such as, for example, latex (L) or silicone.
  • the stiffer material such as latex (L) or silicone.
  • the structure per se with the textile (T) is sturdier than the elastic treatment (L), since for example latex gets stiffer with thicker layers.
  • a tubing By constructing a flexible tubing with a soft supporting structure (T) and a strengthening, elastic treatment (L), a tubing is obtained having great flexibility both at bending, stretching and compressing. Also, the tubing can stand deformation without occurrence of fractures, and in most cases by far it will reassume its original shape upon end of impact.
  • the construction offers the possibility of forming tubing for the ventilation trade exclusively from natural materials, such as wool (T) and latex (L), both beinglOO % biodegradable and without harmful evaporations.
  • natural materials such as wool (T) and latex (L)
  • T wool
  • L latex
  • the uneven surface of the wool textile will create a natural sound-absorbing effect, which is advantageous for ventilation products.
  • the tubing folding may be shaped to form a helix (S) and will exhibit, in axial section, two sides with convex (E) and concave (A) arches disposed mutually off-set, as set forth in claim 2.
  • S helix
  • E convex
  • A concave
  • the tubing folding may be shaped to form unbroken rings (R) transversely to the tubing axis which will exhibit, in axial section, two sides with convex (E) and concave (A) arches in a symmetrical, parallel pattern, as set forth in claim 3.
  • R unbroken rings
  • E convex
  • A concave
  • the tubing folding may be in a uniform, corrugated (K) pattern axially to the tubing, where the distances between the concave (A) and the convex (E) arches will be uniform, as set forth in claim 4.
  • the tubing folding may be in an uneven, corrugated pattern axially to the tubing, where the distances between the concave (A) and the convex (E) arches will be different, as set forth in claim 5.
  • the tubing aperture and external diameter may be constant axially to the tubing, as set forth in claim 6. This is optimal, for example at mounting, where mounting sockets at either end of the tubing have uniform dimensions.
  • the tubing aperture and external diameter may be decreasing or increasing axially to the tubing, as set forth in claim 7. This is optimal, for example at mounting, where mounting sockets at either end of the tubing have different dimensions.
  • the textile (T) of the flexible tubing may be shaped to form a tubing at the actual processing, as set forth in claim 8. It may, for example, be wool felt felted over a rod.
  • the textile (T) of the flexible tubing (T) may be shaped to form a tubing by taking a finished processed plate length of the textile and subsequently joining it to form a tubing, as set forth in claim 9. Said joining may be effected by sowing, gluing, or other usable methods.
  • Figure 1 is a perspective view of the flexible tubing with uniform, ring-shaped corrugations.
  • Figure 2 is an axial section through a side of the flexible tubing, showing the composition of the materials.
  • Figure 3 is an axial section through the flexible tubing, showing a helical solution (S) and a ring-shaped solution (R), respectively.
  • Figure 4 is an axial section through the flexible tubing, showing the flexible tubing at bending.
  • the flexible tubing functions in that it has corrugations (K) controlling the tubing movements, and avoids center-wise collapse at acceptable bending. At bending, this functions in that the corrugations (K) in one side of the tubing are compressed (Z), and that in the opposite side the corrugations (U) are unfolded, and thus it is avoided that the force impact compresses the aperture. At folding, the corrugations (K) of the entire tubing are compressed, and at unfolding, the corrugations (K) of the entire tubing are likewise unfolded.
  • the tubing aperture Upon force impact along the tubing, the tubing aperture will collapse, but due to the soft structure (T) the tubing will get no fractures, and in case of shorter impacts it will easily be able to reassume its original shape upon end of impact. It may be necessary to press the tubing back to its original shape, depending on how strong the impact was.
  • the soft structure (T) of the flexible tubing makes it fully compressible from all sides, without occurrence of fractures.
  • the flexible tubing is made from textile (T), shaped to form a tubing either from the actual textile processing, or by joining a cut-out length of textile plate to form a tubing. Said joining may be by way of stitching with thread, gluing, or other usable joining methods, depending on the intended use of the finished tubing.
  • the textile tubing (T) is disposed on a rod having dimensions matching the internal dimensions of the textile tubing.
  • Method is chosen depending on whether the corrugations (K) of the tubing are to be uniform, helical (S), unbroken rings (R), or are to have an uneven pattern along the tubing. In the case of controlled corrugations (K), it will be necessary to dispose a strand or the like at the individual foldings.
  • the textile is subsequently folded over the rod by pressing it together along the rod, the textile alternatingly being folded towards and away from the axial center of the tubing, thereby creating corrugations (K) internally and externally axially to the tubing.
  • the textile (T) is either boiled or steamed so as to retain its shape after removal of any strands from tubing.
  • the textile is treated, for example by dipping it into liquid latex (L), such that the entire textile gets soaked with the latex, after which it is remounted on the rod until dry.
  • L liquid latex
  • the tubing may have many different degrees of softness that may be useful for different types of application.
  • the tubing has optimally a soft structure of a relatively thin wool-textile (T) with a latex (L) and/or silicone treatment, which affects the flexibility minimally, but which imparts extra strength to the flexible tubing structure, encapsulates loose fibers, and increases air density and the air flow in the tubing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)

Abstract

L'invention concerne un tube flexible, élastique, souple, bien adapté mais non exclusivement à des raccords mobiles dans le domaine de la ventilation, où il existe des exigences rigoureuses quant aux propriétés flexibles du tube, et le tube devant être pliable sans apparition de fractures. Le tube flexible est construit avec une structure continue de soutien de textile (T) ou similaire, par exemple un textile en laine, qui, par impact avec de la vapeur d'eau, conserve une forme donnée. Le textile est façonné pour former un tube, puis plié de façon à présenter des ondulations (K) le long du tube, de sorte que des compressions (Z) et des dépliages commandés (U) soient créés lors du pliage du tube. Le tube textile souple est traité avec du latex (L) ou avec d'autres matériaux présentant des propriétés élastomères, afin de créer une plus grande résistance de structure, d'encapsuler des fibres et de créer une étanchéité améliorée à l'air. Lorsqu'un pliage est nécessaire, le textile souple (T) présent dans la structure et le traitement élastique (L) le permettent sans risque de fracturation.
PCT/DK2018/050136 2017-06-14 2018-06-13 Tube flexible et élastique pour raccords mobiles de ventilation WO2018228650A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201700348 2017-06-14
DKPA201700348 2017-06-14

Publications (1)

Publication Number Publication Date
WO2018228650A1 true WO2018228650A1 (fr) 2018-12-20

Family

ID=63014299

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2018/050136 WO2018228650A1 (fr) 2017-06-14 2018-06-13 Tube flexible et élastique pour raccords mobiles de ventilation

Country Status (1)

Country Link
WO (1) WO2018228650A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB593068A (en) * 1944-10-03 1947-10-07 Us Rubber Co Improvements in corrugated tube
GB709055A (en) 1946-04-29 1954-05-12 William Emil Meissner Flexible tubing
FR1569715A (fr) * 1968-03-01 1969-06-06
DE102004022337A1 (de) * 2004-05-06 2005-12-01 Polfin Ltd. Schutzvorrichtung für langgestreckte Gegenstände
US20110277865A1 (en) 2010-05-12 2011-11-17 Crushproof Tubing Company Axially compressible flexible tubing and method for making same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB593068A (en) * 1944-10-03 1947-10-07 Us Rubber Co Improvements in corrugated tube
GB709055A (en) 1946-04-29 1954-05-12 William Emil Meissner Flexible tubing
FR1569715A (fr) * 1968-03-01 1969-06-06
DE102004022337A1 (de) * 2004-05-06 2005-12-01 Polfin Ltd. Schutzvorrichtung für langgestreckte Gegenstände
US20110277865A1 (en) 2010-05-12 2011-11-17 Crushproof Tubing Company Axially compressible flexible tubing and method for making same

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