WO1995000729A1 - Film-support - Google Patents

Film-support Download PDF

Info

Publication number
WO1995000729A1
WO1995000729A1 PCT/CH1994/000121 CH9400121W WO9500729A1 WO 1995000729 A1 WO1995000729 A1 WO 1995000729A1 CH 9400121 W CH9400121 W CH 9400121W WO 9500729 A1 WO9500729 A1 WO 9500729A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
support film
film according
foils
feet
Prior art date
Application number
PCT/CH1994/000121
Other languages
German (de)
English (en)
Inventor
Hans-Peter RÜFENACHT
Original Assignee
Ruefenacht Hans Peter
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 Ruefenacht Hans Peter filed Critical Ruefenacht Hans Peter
Priority to AU69230/94A priority Critical patent/AU6923094A/en
Publication of WO1995000729A1 publication Critical patent/WO1995000729A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/024—Sectional false floors, e.g. computer floors
    • E04F15/02405—Floor panels
    • E04F15/02417—Floor panels made of box-like elements
    • E04F15/02423—Floor panels made of box-like elements filled with core material
    • E04F15/02429—Floor panels made of box-like elements filled with core material the core material hardening after application
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
    • E04F15/123—Lost formworks for producing hollow floor screed layers, e.g. for receiving installations, ducts, cables

Definitions

  • the present invention relates to a support film according to the preamble of claim 1.
  • support foils are used, which in themselves consist of a flexible blen, adapting to the subfloor material, wherein a thermoplastic is preferably used here.
  • These supporting foils which are preferably of a square or rectangular shape on the circumference and are offered with a side length in the order of magnitude of approximately 1 m, are superficial in order to ensure a sensible palletizing for transport, usually manufactured in deep-drawing processes, downwardly shaped and tightly sealing depressions which, supported on an underbody, assume the function of support feet.
  • the flexibility of the support film is transferred to the support feet, so that they can adapt to any unevenness in the subfloor.
  • the support feet provided at regular intervals in the longitudinal and transverse directions result in a uniform support structure and load distribution after a screed material has been applied to the support film. Since the final purpose of these cavity floors, among other things, is also a
  • REPLACEMENT LEAF partial installation of cables and pipes it must be ensured that the alignment of the recesses serving as support feet in the x- and y-axes of a surface composed of many support foils remains uniform, ie the regular arrangement of the support feet at ei ⁇ A single support film must be retained in the composite of all installed support films.
  • One solution for realizing this postulate is to design the laying so that the transitions of two adjacent supporting foils into a bond is created by the supporting feet of two neighboring supporting foils, by using the supporting feet of the already laid supporting foil as matrices to the supporting feet of the additional supporting foil.
  • this method has the advantage that the alignment of the depressions with one another remains a uniform, regular one over the entire composite of all the laid support foils;
  • this type of solution has the major disadvantage that there is a relatively large overlap between two adjacent support foils, which results in up to 20% material loss, i.e. in other words, the gross supporting surface required for laying a certain area for a cavity floor must be over 20% larger.
  • the invention seeks to remedy this.
  • the invention as characterized in the claims, is based on the object of eliminating the aforementioned disadvantages in a support film of the type mentioned at the outset.
  • the essential advantage of the invention can be seen in the fact that the butting or overlapping zones of the support foils, which are already present for reasons of production and strength, are expanded with means which allow the support foils to interlock.
  • REPLACEMENT LEAF enable each other, always in accordance with the prerequisite for the laying of the support film, according to which the alignment in the xy direction of the recesses, ie the support feet, is maintained, with which a maximized saving of the support film area can be achieved.
  • Another essential advantage of the invention is that the means enable the individual supporting foils to be easily laid to form a composite: this laying is just as simple as that described for the prior art, in which the individual supporting feet operate the radio a male and female die.
  • REPLACEMENT LEAF 4 shows a further possibility of joining support foils via a further variant of connecting means
  • Fig. 5 The design of the connecting means according to Fig. 4;
  • 17, 18, 19 further support foils with connecting means according to the principle of a self-locking angle and a labyrinth seal.
  • FIG. 1 shows a composite of support foils, for the sake of understanding the active connection shown between two support foils 1, 2 is entirely sufficient.
  • the individual support foils are covering with regard to the outer dimensions and the inner design
  • the stackability is achieved in that the individual depressions 3 serving as support feet alternately assume the function of male and female molds.
  • the ability to palletize is a function of the outer dimensions of the support foils, which, preferably, are to be aligned with the international pallet standards. However, this is not an essential requirement.
  • the geometric shape of the support feet 3 is discussed in more detail below.
  • the support films 1 and 2 have butt or overlap zones la, lb and. 2a, 2b, the width of which is a measure that results from manufacturing and strength considerations and in which minimization is sought. Along their length, these zones have la, lb and.
  • connecting means 4, 5 make it possible to form support foils 1, 2 over large areas, in such a way that the axis orientations of the support feet 3 of all support foils run in the same planes over the entire floor area to be installed.
  • the described maintenance of the axial alignment of the support feet 3 of all the support foils is an essential prerequisite for achieving the one final purpose of the cavity floor, namely the subsequent unrestricted, problem-free laying of cables and pipes, which would be extremely at risk if individual depressions 3 would be shifted, and so the continuous tunnel path formed for this purpose had the same closures.
  • these connecting means 4, 5 have the task of designing the composite formation of support foils in such a way that they can be easily installed. This results in the conditions that the connection between the means 4, 5 of the support foils 1, 2 to be laid is to be designed as a detachable assembly, to name just one reason, when laying them at any time to have a corrective effect. On the other hand, the connection between the individual
  • REPLACEMENT LEAF Support foils 1, 2 experience a certain fixation, that is, they can be created by means 4, 5, which require a certain adhesion.
  • the degree of frictional connection between the connecting means of two support foils essentially depends on the physical stability of the support foil material used. In the case of very structurally unstable support foils, that is to say foils with a minimal material thickness, the frictional connection and the number of active connecting means along the abutment or overlap zones of two support foils will increase so that there is tightness with respect to the screed mass can, ie the screed mass must not under any circumstances go down through the overlap zones.
  • the frictional connection of this releasable connection can be created by friction or by mechanical locking, for example by means of a push button-like structure (cf.
  • FIGS. 13-15 Of course, what has been said does not exclude that a non-detachable connection between the individual support foils can also be provided for certain applications.
  • the connecting means in this regard can be provided, for example, by an adhesive process, or can also be produced by a chemical, mechanical or welding process.
  • the support feet 3 are spaced from one another in such a way that the support film can adapt to an uneven contour of the subfloor when the screed composition, preferably cement or a flowable composition, for example anhydride, is applied.
  • FIG. 2 is a view along the sectional plane II-II in FIG. 1.
  • the overlap of the two support foils 1, 2 and the connection 6 resulting from the interlocking of the two connecting means 4, 5 are clearly visible, here the one Bulge 4 in the butt or overlap zone la fulfills the function of a matrix, while the other bulge 5 in the butt and overlap zone 2a takes on the function of a male.
  • This figure furthermore shows that the depressions 3 serving as support feet have the shape of a truncated cone, the cone angle relating to the
  • REPLACEMENT LEAF the support film configuration ie depends on the services to be performed.
  • the side surfaces of the support foot 3 shown can, which also applies to other support feet, run at a fixed angle, they can also create the shape of the support feet at a progressive or degressive angle.
  • connection 6 created via the bulges 4 and 5.
  • These bulges 4, 5 can be frustoconical, truncated pyramid-shaped with a square or rectangular cross-section, or how the shape of the support feet 3 can be designed.
  • the connection 6 shown here is inherently a detachable connection without frictional connection. Such a connection does not become detachable if, for example, an adhesive process is provided in the area of the connecting means 4, 5 and / or the intermediate spaces on the butt or overlap zones 1 a, 1 b, 2 a, 2 b.
  • the support film preferably consists of a thermoplastic, in particular of polyvinyl chloride (PVC), polyolefins such as polyethylene (PE) or polypropylene (PP), or polyanomatics such as polystyrene (PS).
  • PVC polyvinyl chloride
  • PE polyethylene
  • PP polypropylene
  • PS polyanomatics
  • Support foils made of thermoplastic are manufactured using conventional spraying methods.
  • the support foils can, however, also be made of a metal that can be deeply drawn.
  • REPLACEMENT LEAF stand for example made of aluminum or aluminum alloys or other non-combustible materials.
  • the support foils in the form of plates are preferred, as the exemplary embodiments show; however, if the thickness is appropriate, they can also be produced in the form of rolls. If necessary and justifiable from an economic point of view, the support foils can be supplemented by the installation or formation of reinforcing agents.
  • connection 6a shows the same support films 1 (2) as in FIG. 1, the butting or overlapping zones la, lb and not shown 2a, 2b, by uniformly distributed, elongated or semicircular depressions 4a, 5a, 5, which lead to a connection 6a similar to connection 6 described above.
  • FIGS. 9 and 10 show a further variant of a composite formation of support foils, the variant shown here producing a releasable connection that can be created with a force fit. This connection takes place with the aid of a lockable plug-in pin 9 which connects the support foils 12, 13.
  • the support films 15 and 16 shown in FIGS. 11 and Ha and 12 have similar abutment or overlap zones as the previous embodiments. As far as the connection is concerned, one of the previous variants or the variants described below can be provided here, which is why, for the sake of simplicity, the corresponding description is not repeated here.
  • the support feet 17 shown are square in cross section.
  • the overlap zones 1a, 1b, 2a, 2b lie in the film plane.
  • a horizontally circumferential zone 17a separates the depression 17 into two truncated pyramids, the side surfaces 18 of the upper truncated pyramid 19 being flatter than the side surfaces 20 of the lower truncated pyramid 21.
  • reinforcing beads 22 are formed, which have a trapezoidal cross-sectional shape that tapers downwards.
  • the reinforcing beads 22 begin in the area of the overlap zones and end in the area of the four side edges 23 of the lower truncated pyramid 21.
  • the bottom surface 24 of the support feet 17 is octagonal in the present case.
  • the support feet 17 according to FIG. 12 are indicated with different, high lower truncated pyramids 21, but only the lowest area of the depression, which serves as a support foot in the finished hollow floor, is shown.
  • the inclination of the side surfaces can be seen particularly well from this figure.
  • the side surfaces 18 of the upper truncated pyramid 19 have the angle of inclination, which is substantially smaller than the angle of inclination of the side surfaces 20 of the lower truncated pyramids 21.
  • the angle of inclination ⁇ is in the range from 30-80 °. It can also be seen from FIG. 12 that the depth of the reinforcing beads 22 increases from top to bottom and that the bottom thereof is tangent to the flat areas in a curved curve.
  • 13-15 show a connection between two support foils 15, 16, the shape of which was borrowed from FIG. 11, using a push-button-like structure. It is a question here of coupling the individual foils 15, 16 to one another, without the use of additional aids, to form an assembly-friendly area-wide support foil composite, and this by means of a connection that can be created with a force fit.
  • the design proposed here in the sense and function of a push button consists of a number of rectangular bulges 25, 26 which extend along the peripheral edges la, lb; 2a, 2b of each support film 15, 16 are evenly distributed.
  • a preferred use of these bulges is to arrange them in the x and y directions of the support foils 15, 16 in the planes of the central axes of the individual support feet 17, these bulges 25, 26 both functioning as a matrix as well as that of a patrix: the bulge 26 of a first support film 15 serves as the matrix, the bulge 25 of a support film 16 placed next to it, the latter bulge directly fulfilling the function of a patrix.
  • the strength of the frictional connection, that is the jamming, must be chosen in such a way that the circumferential edges 1a, 2a of two adjacent support foils lying one on top of the other are forced into a preferred position, that is to say they close tightly, so that the screed mass, in particular if it is a thin liquid, is not caused by leaking zoo can eat down along the overlaps.
  • REPLACEMENT LEAF half in order to do justice to this final purpose, it is just as important, in addition to the short division between the individual bulges mentioned, that the matrix and the patrix engage securely. After the connection has been made, the two circumferential edges lying one on top of the other must run tightly and snugly over their entire length.
  • One design that meets all the requirements consists in initially designing the bulges of all the support foils to be geometrically the same size.
  • the frictional connection that is to say the jamming between two bulges, is a measure of the changes in the geometry of the two, the male part will be a contraction, the male part will be an elongation, corresponding to the modulus of elasticity of the supporting film material. In terms of contribution, this is about overcoming the support film thickness in the circumferential direction of the push button-like structure.
  • the shape of the bulge here consists of a rectangular truncated pyramid that tapers downwards regularly and irregularly.
  • the longitudinal surfaces 25a, 26a taper at a fixed angle to the base of the bulge.
  • the wide areas 25b, 26b have a double offset: up to about half the wide areas 25b, 26b diverge, similar to a dovetail, at a small angle, then they form a curve and taper from here they extend at a larger angle to the base of the bulge.
  • the rounding at the transition between the two diverging angles in operative connection with the upper course of the broad surfaces 25b, 26b causes a locking mechanism between the die and the patrix.
  • FIG. 17 shows essentially the same support films as in FIG. 13.
  • the adhesion i.e. the jamming along the overlap zones 1a, 2a takes place here according to the suggestions of FIGS. 18 and 19, which can be used either individually, in combination with one another or in combination with other configurations of depressions and bulges.
  • This depression 30 should advantageously cover the entire active length of the overlap zones 1a, 2a.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Floor Finish (AREA)

Abstract

L'invention concerne un film-support (1, 2) formé de zones d'aboutement et de recouvrement (1a, 1b, 2a, 2b) et de pieds de support (3). Ce film-support sert à recevoir une matière coulante auto-durcissable, pour former un plafond. Au moins deux des zones de recouvrement opposées sont pourvues d'éléments (4, 5) qui établissent une jonction (6) amovible qui n'est pas réalisée par liaison de force et les films-supports (1, 2) sont réunis pour former un composite. Les éléments d'assemblage (4, 5) sont placés localement de manière à ce que la configuration des pieds de support prédéfinie régulièrement par le premier film-support (1) soit transférée aux autres films-supports (2) du composite et y soit maintenue.
PCT/CH1994/000121 1993-06-20 1994-06-20 Film-support WO1995000729A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU69230/94A AU6923094A (en) 1993-06-20 1994-06-20 Supporting film

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH181693 1993-06-20
CH1816/93-3 1993-06-20

Publications (1)

Publication Number Publication Date
WO1995000729A1 true WO1995000729A1 (fr) 1995-01-05

Family

ID=4219274

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1994/000121 WO1995000729A1 (fr) 1993-06-20 1994-06-20 Film-support

Country Status (2)

Country Link
AU (1) AU6923094A (fr)
WO (1) WO1995000729A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7997027B1 (en) * 2009-01-07 2011-08-16 American Builders & Contractors Supply Co., Inc. Modular roof system with border secured without fastener

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3352079A (en) * 1965-04-30 1967-11-14 John G Strong Floor form structure
DE3924648A1 (de) * 1989-07-26 1991-01-31 Wolfgang Dietrich Di Machowetz Flaechiges formelement zur herstellung von estrich-fussboeden
DE9104855U1 (de) * 1991-04-20 1991-06-27 Höllfritsch, Hanno, Dipl.-Ing., 8130 Starnberg Verlorene Schalung zur Herstellung eines Hohlraumbodens
DE9110290U1 (de) * 1991-08-20 1992-12-17 Nöltner, Hans, 7587 Rheinmünster Folienelement zum Aufbau eines Hohlraumbodens
WO1993014286A1 (fr) * 1992-01-20 1993-07-22 Ruefenacht Hans Peter Feuille-support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3352079A (en) * 1965-04-30 1967-11-14 John G Strong Floor form structure
DE3924648A1 (de) * 1989-07-26 1991-01-31 Wolfgang Dietrich Di Machowetz Flaechiges formelement zur herstellung von estrich-fussboeden
DE9104855U1 (de) * 1991-04-20 1991-06-27 Höllfritsch, Hanno, Dipl.-Ing., 8130 Starnberg Verlorene Schalung zur Herstellung eines Hohlraumbodens
DE9110290U1 (de) * 1991-08-20 1992-12-17 Nöltner, Hans, 7587 Rheinmünster Folienelement zum Aufbau eines Hohlraumbodens
WO1993014286A1 (fr) * 1992-01-20 1993-07-22 Ruefenacht Hans Peter Feuille-support

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7997027B1 (en) * 2009-01-07 2011-08-16 American Builders & Contractors Supply Co., Inc. Modular roof system with border secured without fastener

Also Published As

Publication number Publication date
AU6923094A (en) 1995-01-17

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