EP1606478A1 - Support de type arc, a base d'un element constitutif pneumatique - Google Patents

Support de type arc, a base d'un element constitutif pneumatique

Info

Publication number
EP1606478A1
EP1606478A1 EP04716192A EP04716192A EP1606478A1 EP 1606478 A1 EP1606478 A1 EP 1606478A1 EP 04716192 A EP04716192 A EP 04716192A EP 04716192 A EP04716192 A EP 04716192A EP 1606478 A1 EP1606478 A1 EP 1606478A1
Authority
EP
European Patent Office
Prior art keywords
sheet
flexible
pneumatic component
pneumatic
arch
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.)
Granted
Application number
EP04716192A
Other languages
German (de)
English (en)
Other versions
EP1606478B1 (fr
Inventor
Mauro Pedretti
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.)
Prospective Concepts AG
Original Assignee
Prospective Concepts AG
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 Prospective Concepts AG filed Critical Prospective Concepts AG
Publication of EP1606478A1 publication Critical patent/EP1606478A1/fr
Application granted granted Critical
Publication of EP1606478B1 publication Critical patent/EP1606478B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/20—Tents or canopies, in general inflatable, e.g. shaped, strengthened or supported by fluid pressure

Definitions

  • Sheet-like carrier made of a pneumatic component
  • the present invention relates to structures which are built from or with pneumatic components, according to the preamble of claim 1.
  • structures or structures are known, for example from US 3,894,307 (DI) with regard to bridge structures, and FR 2 741 373 (D2) and EP 1 191 168 (D3) regarding more tent-like structures.
  • WO 01/73245 (D4) represents the closest prior art.
  • the bridge disclosed in Dl like every structure of this type, has a bridge plate that is subjected to compressive forces and tension bands that are subjected to tensile forces; pneumatic elements are also present. However, the latter only perform support functions without being further stabilized.
  • pressurizable, expandable pipes are disclosed, which are limited in their extensibility by means of a band applied on one side along a surface line and subjected to tensile forces. When pressurized, a circle segment results due to the resulting bending moment per unit length. This is to be used to manufacture support elements for tent sheeting.
  • With the mentioned bands however, only the shape of the desired arches is defined, without the rigidity and load capacity of the pneumatic elements described being able to be increased.
  • D3 describes a framework made of inflatable tubes, the load capacity and rigidity of which is defined only by the properties of the framework. Apart from textile technology considerations, no measures are described to increase the bending stiffness and the transverse load-bearing capacities of the pipes described. It is known from D4 that the pneumatic elements disclosed therein can be designed to be curved to a limited extent. However, it remains open how strongly curved elements can be made.
  • the object of the present invention is to create pneumatic components which are rigid in the pressurized state, can be designed in a variety of ways in an arc shape and are capable of absorbing large buckling loads.
  • FIG. 1 is a side view of a first embodiment of a supporting arch-like carrier
  • FIG. 1 shows a first exemplary embodiment of the pneumatic component according to the invention. It consists of an airtight envelope 1 made of textile material. This can either be sealed by a preferably inner coating (not shown) or, in the sense of functional separation, be constructed in multiple layers; for example is in the textile Envelope 1 inserted a flexible or elastic and gas-tight hose (also not shown), as known from D4.
  • a pressure rod 2 is fastened to the outer arch of the pneumatic component, which is curved here, preferably in such a way that it is glued or welded to the material of the casing 1 over its entire length and width or is connected by other measures in such a way that it has the circulating voltage ⁇ u can take over.
  • the compression rod 2 ends in two node elements 3, with which it is non-positively connected. At least one pair of drawstrings 4 is also non-positively fastened in the node elements 3.
  • the drawstrings 4 are shown by different signatures only for better visibility. If the arcuate pneumatic component is loaded by a force - symbolized in FIG. 1 by a vector arrow F - the outside of the arch is additionally subjected to pressure, with the pressure rod 2 absorbing this pressure and through the pressure medium-loaded casing 1 and the tension bands exerting tensile forces 4 is stabilized in its bending and buckling behavior.
  • FIG. 1 can be used as a supporting arch for a roof with suitable support or foot elements fastened to the node elements 3 and known per se, as is known per se.
  • suitable elements to the pressure rod for this purpose, which allow such a roofing according to the invention to be extended practically without restriction in a direction perpendicular to the plane of the arch according to FIG. 1.
  • a large number of arcuate pneumatic components according to FIG. 1 are to be connected either parallel to one another or in an otherwise suitable arrangement and to be covered with a suitably cut tarpaulin.
  • 2a, b are cross-sectional representations of the flexible pneumatic component according to the invention; Fig. 2a shows it in limp, Fig. 2b in the compressed air state.
  • the pneumatic component consists of the flexible sleeve 1, to which the pressure rod 2 is glued over the entire surface, for example, in the form of a flexible plate made of a pressure-resistant material.
  • the pressure rod 2 In the uninflated state, the pressure rod 2 is flat, which allows the pneumatic component to be rolled up and transported in the rolled up state. If the empty and limp - and possibly rolled-up - pneumatic component is now acted upon by compressed air via a valve 6, it first unrolls and then slowly assumes the cross-sectional shape shown in FIG. 2b in the rolled-out but still limp state.
  • the compression rod 2 is bent into the shape of a cylinder segment shown. At the same time, a tangential circulating stress ⁇ u is built up on the shell, where
  • This tensile stress ⁇ u is transmitted via the connection of the compression rod 2 with the sheath 1 to the compression rod 2 in such a way that this is also tensioned by ⁇ u .
  • This increases the moment of inertia of the compression rod and increases the buckling load.
  • the procedure is, for example, as described with reference to FIGS. 3a-e. 1 is designed as a flexible component which can be folded or rolled to save space when empty - that is to say without pressure. Further it is in the inventive concept to be able to deliver such a component ready for use on a construction site. This is possible with a compression rod 2, which changes its area moment of inertia due to the bending due to the deformation of the casing 1 from the empty to the pressurized state.
  • the airtight envelope 1 is brought to the intended operating pressure, whereby its length increases by an amount M due to the stretching of the textile material (Fig. 3a, b).
  • the pressurized sleeve 1 is brought into the intended shape - here a semicircle - via a template 5 and fixed with means known per se.
  • Diverse arch shapes can of course be formed with different templates 5. For example, bends with variable bending radii, with straight legs as in FIG. 7, but also asymmetrical bends, the legs of which are not mirror-symmetrical.
  • the pre-bent pressure rod 2 is glued or welded to the casing 1 and connected to the provided node elements 3.
  • the drawstrings 4 are then also fastened to the node elements, placed around the sheath 1 and tensioned, as a result of which the shape of the support, which is bow-shaped here, is fixed.
  • the tension bands 4 can be firmly connected to the casing 1 and / or the pressure rod 2 at least at certain points on the opposite side. The casing 1 can then be relieved of pressure again.
  • the sheet-like support the manufacture of which is shown in FIGS. 3a-e
  • a pressure rod 2 on the inside of the sheet, as shown in FIG. 4, the method steps of FIGS. 3c, d can be interchanged accordingly. First the pre-bent pressure rod 2 is placed on the brought blone 5 and then glued the pressurized sleeve 1 to the pressure rod 2.
  • FIG. 5 A further variant of the manufacturing process of an arch-like carrier shown in FIGS. 3a-e is shown in FIG. 5.
  • a pressure rod 2 is arranged both outside and inside on the arcuate pneumatic component and connected to the node elements 3.
  • the outer drawstring 8 can therefore be omitted. 5 can withstand both positive and negative bending moments.
  • FIG. 6 is a schematic representation of a bridge arch according to the invention.
  • a functional bridge consisting of pneumatic components, depending on the required payload
  • two to more such arch-like supports are placed next to one another and secured against one another by known means.
  • an outer tension band 8 is indicated in order to keep the forces in the pneumatic component in a frame that is manageable in terms of material.
  • the Tension band 8 is prestressed and the compression rod is subsequently subjected to pressure.
  • the arch-like supports jointly carry a roadway plate in such a way that the weight forces of a load crossing the bridge are introduced into the pressure rods and thus relieve them, and further load the outer tension band 8 with tension.
  • FIG. 6 shows a further exemplary embodiment of a component according to the invention, in a detail from a side view.
  • Two sleeves 1, each with two drawstrings 4 are connected by a pipe bend 9, which simultaneously serves as a knot and connecting element.
  • the compression rod 2 extends from one casing 1 over the pipe bend 9 to the next casing 1.
  • the individual casings 1 can be designed to communicate with one another with respect to the compressed gas and then together form a single pressure vessel.
  • the other solution according to the invention is based on sealing off each casing 1 with respect to the compressed gas from the neighboring one, for example by pulling in a partition (not shown) ) in the pipe bend 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Tents Or Canopies (AREA)

Abstract

L'invention concerne un support de type arc, comprenant une enveloppe (1) étanche aux gaz, sollicitée par un milieu de pression, sur laquelle une barre de compression (2) sous forme de plaque et flexible en soi est fixée sur toute la surface. Cette barre de compression est reliée par liaison de force, dans chaque cas, à un élément nodal (3), à chacune de ses extrémités. Au moins une paire de bandes de traction (4) sont également reliées par liaison de force aux deux éléments nodaux (3) et sont enroulées au moins une fois autour de l'enveloppe (1) et contraintes, dans le sens inverse au sens de vissage. Sous l'effet de sollicitations exercées par une force F, la barre de compression (2) stabilisée par l'enveloppe (1) et sollicitée en tension de compression et les bandes de traction (4) sont sollicitées en tension de traction.
EP04716192A 2003-03-21 2004-03-02 Support de type arc, a base d'un element constitutif pneumatique Expired - Lifetime EP1606478B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH4932003 2003-03-21
CH4932003 2003-03-21
PCT/CH2004/000112 WO2004083569A1 (fr) 2003-03-21 2004-03-02 Support de type arc, a base d'un element constitutif pneumatique

Publications (2)

Publication Number Publication Date
EP1606478A1 true EP1606478A1 (fr) 2005-12-21
EP1606478B1 EP1606478B1 (fr) 2009-07-15

Family

ID=32996996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04716192A Expired - Lifetime EP1606478B1 (fr) 2003-03-21 2004-03-02 Support de type arc, a base d'un element constitutif pneumatique

Country Status (3)

Country Link
EP (1) EP1606478B1 (fr)
DE (1) DE502004009751D1 (fr)
WO (1) WO2004083569A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11815304B2 (en) 2019-04-15 2023-11-14 Samsung Electronics Co., Ltd. Refrigerator

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8820000B2 (en) 2003-07-18 2014-09-02 Prospective Concepts Ag Pneumatic support
CA2543798C (fr) * 2003-11-04 2012-09-25 Prospective Concepts Ag Structure pneumatique plane
FR2927347B1 (fr) * 2008-02-13 2013-04-26 Jean Pierre Stenzel "structure gonflable utilisant un tirant"
CH712565A1 (de) * 2016-06-08 2017-12-15 Pibridge Ltd Pneumatischer Träger.
KR20210125379A (ko) 2020-04-08 2021-10-18 삼성전자주식회사 냉장고

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9304048L (sv) * 1993-12-06 1995-03-06 Stefenson Bananordning för nödevakuering
US5421128A (en) * 1994-01-14 1995-06-06 Sharpless; Garrett C. Curved, inflated, tubular beam
FR2741373B1 (fr) * 1995-11-17 1998-01-30 Bachmann Sa Poutre gonflable destinee notamment a la realisation d'une armature d'un abri
US6543730B2 (en) * 2000-03-27 2003-04-08 Mauro Pedretti Pneumatic structural element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004083569A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11815304B2 (en) 2019-04-15 2023-11-14 Samsung Electronics Co., Ltd. Refrigerator

Also Published As

Publication number Publication date
EP1606478B1 (fr) 2009-07-15
WO2004083569A1 (fr) 2004-09-30
DE502004009751D1 (de) 2009-08-27

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