EP0679780A2 - Elément de coffrage pour structures de plancher creux - Google Patents

Elément de coffrage pour structures de plancher creux Download PDF

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Publication number
EP0679780A2
EP0679780A2 EP95108455A EP95108455A EP0679780A2 EP 0679780 A2 EP0679780 A2 EP 0679780A2 EP 95108455 A EP95108455 A EP 95108455A EP 95108455 A EP95108455 A EP 95108455A EP 0679780 A2 EP0679780 A2 EP 0679780A2
Authority
EP
European Patent Office
Prior art keywords
pots
plate
formwork element
element according
cutouts
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
EP95108455A
Other languages
German (de)
English (en)
Other versions
EP0679780A3 (fr
EP0679780B1 (fr
Inventor
Peter Weissenberger
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.)
Fischer Irma
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0679780A2 publication Critical patent/EP0679780A2/fr
Publication of EP0679780A3 publication Critical patent/EP0679780A3/fr
Application granted granted Critical
Publication of EP0679780B1 publication Critical patent/EP0679780B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a formwork element for hollow floor constructions according to the preamble of claim 1.
  • Raised floors are used as industrial floors in order to be able to lay pipes, cables and the like in the floor. Hollow floors are also used for hypocaust heating.
  • the hollow floors consist of a sub-floor and a screed supported by supporting elements with an upper floor.
  • a formwork element which consists of a deep-drawn plate with bulges to form the supports.
  • the board which is preferably made of cardboard, is likewise not accessible, so that the same difficulties arise during installation.
  • a formwork element is known from EP 0 133 556 A2 which consists of a dimensionally stable plate, e.g. Plasterboard, exists and can be walked on to pour the screed material. Conical cutouts are provided in a grid in the plate, into which massive support feet are cast and held in a form-fitting manner. The transportation of the formwork elements provided with the support feet at the factory is complex.
  • a formwork element for hollow floor constructions which consists of a dimensionally stable plate with cutouts, in which support elements are inserted.
  • the support elements are designed as dimensionally stable pots which rest on the underside of the plate with an outer flange which projects beyond the circumference of the cutout in order to support the plate.
  • the pots are fitted with their upper edge into the cutouts and are held in these cutouts by friction.
  • the fit of the pots in the cutouts of the plate requires extremely high machining accuracy of the cutouts and the top edge of the pots. Deformations of the plate or pots, which are unavoidable under the rough conditions of the construction site, make it difficult or prevent the pots from being inserted into the cutouts. In practice, therefore, the pots can only be inserted into the plate at the factory.
  • a prefabricated plastic plate is known as a wall or floor covering. Pot-shaped, dimensionally stable support elements are attached to the wall or floor to secure the plate. The plates are snapped onto these support elements, whereby they engage with a flange projecting outwards at the upper edge of the pot behind the tabs of the plates. Since the support elements are first fastened to the wall or the floor and the plates are only snapped onto the fastened support elements, a high degree of accuracy is necessary when fastening the support elements to the wall or the floor, which makes the installation of the plates difficult. It is no longer possible to detach the plates from the support elements without destroying them.
  • the invention has for its object to provide a walk-in formwork element for hollow floor constructions, which is inexpensive to manufacture, can be transported in a space-saving manner and can be adapted to the floor plan in a simple manner.
  • dimensionally stable pots are attached to the cutouts of the dimensionally stable plate.
  • the plates and the pots can be transported separately to the construction site, the pots being inserted into the plate only on the spot.
  • the pots can also be attached to the plate at the factory.
  • a space-saving, inexpensive transport is possible in particular if the pots are frustoconical in shape with a circular, oval or polygonal cross section, so that the pots or the plates provided with the pots can be stacked one inside the other.
  • Laying the formwork is also easy because the panels can be cut to fit the floor plan. If the pots are only used at the construction site, only the cut plate parts need to be filled with pots and not the resulting plate waste, which results in a cost saving.
  • the pots can be produced inexpensively from plastic, preferably a recyclable plastic, or from biological or synthetic fiber material or cardboard.
  • a wood chipboard, hardboard, cardboard, fiber or plastic board or the like is preferably used for the board, which is inexpensive and stable and can also meet all ecological requirements.
  • the pots are detachably attached with dowel pins or with snap fasteners on or in the cutouts of the plate, which on the one hand enables the pots to be quickly attached with a single movement and on the other hand results in a stable, captive, but detachable attachment. If the pots are attached at the factory, the pots can be removed from the waste pieces generated when the plates are cut and reused. A simple attachment in the factory is also possible by gluing in the pots.
  • the plates are expediently connected to one another at their butt joints by means of double groove strips. This results in a tight connection of the panels for pouring with the liquid screed material. In this way, overlapping of the abutting plates can be avoided, which would lead to the formation of steps and additional material requirements. It is also possible to connect the panels using milled slots on the butt edges.
  • a lost formwork 12 is placed on a sub-floor or insulation 10, which is described in more detail below.
  • the lost formwork 12 is poured out with a liquid screed 14. After the screed has hardened, the top floor 16 is laid.
  • the lost formwork 12 is composed of individual formwork elements, one of which is shown in FIG. 1.
  • the formwork element consists of a rectangular plate 18, which is preferably a chipboard, wood fiber, cellulose, biological, synthetic or plastic plate.
  • the plate 18 has circular cutouts 20 arranged in a grid.
  • Pots 22 made of dimensionally stable plastic or cardboard or biological or synthetic fiber material are inserted into the cutouts 20.
  • the pots 22 have a frustoconical shape, are open on the upper surface with the larger diameter and closed on the bottom surface with the smaller diameter.
  • the diameter of the pots 22 at their upper edge 32 corresponds to the diameter of the cutouts 20, so that the pots 22 can be inserted into the cutouts 20 with little radial play.
  • the pots 22 have a horizontally outwardly extending outer flange 24. If the pots 22 are inserted into the cutouts 20, the plate 18 is supported on the outer flange 24 of the pots 22.
  • the edge 32 engaging in the cutout 20 of the plate 18 covers the inner edge of the cutout 20 with the liquid screed 14 during the later pouring.
  • Pins 34 which protrude vertically upward from the outer flange 24, are formed on the outer flange 24 of the pot 22 at an angle to one another. Outside the cutouts 20, fitting holes 36 are made in the plate 18 in the same angular arrangement as the pins 34.
  • the pots 22 are pressed against the plate 18 from below, the upper edge 32 of the pot 22 engaging in the cutout 20 and the pins 34 being pressed into these fitting bores 36 of the plate 18.
  • the pins 34 are non-positively held in the fitting holes 36 so that the pots 22 are attached to the plate 18. By pressure or impact on the inside of the bottom of the pots 22, they can be removed again from the plate 18.
  • the pins 34 are used to fasten the pots 22 to the plate 18, while the upper edge 32 of the pot 22 engaging in the cutout 20 plays no or only a minor role in the fastening.
  • the upper edge 32 essentially has the task of covering the inner edge of the plate 18 at the cutout 20 against the penetrating moisture of the screed 14, and facilitates the positioning of the pot 22 when it is inserted.
  • the pins 34 can, if necessary, be designed to be radially resiliently spread apart in the manner of a snap fastener. Likewise, it is also possible to use 36 metallic bushings in the fitting bores, which increase the frictional engagement.
  • the pot 22 can have any cross-sectional shape.
  • Double groove strips 30 made of plastic or the like are provided for the seamless connection of abutting formwork elements.
  • the abutting plates 18 are pushed from both sides into the grooves of the double groove strip 30, so that this double groove strip 30 holds the plates 18 together and covers the butt joint sealingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Floor Finish (AREA)
  • Insertion Pins And Rivets (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
EP95108455A 1991-03-22 1992-03-20 Elément de coffrage pour structures de plancher creux Expired - Lifetime EP0679780B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9103515U 1991-03-22
DE9103515U DE9103515U1 (de) 1991-03-22 1991-03-22 Schalungselement für Hohlbodenkonstruktionen
EP92907029A EP0575446B1 (fr) 1991-03-22 1992-03-20 Element de coffrage pour structures de plancher creux

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP92907029A Division EP0575446B1 (fr) 1991-03-22 1992-03-20 Element de coffrage pour structures de plancher creux
EP92907029.0 Division 1992-03-20

Publications (3)

Publication Number Publication Date
EP0679780A2 true EP0679780A2 (fr) 1995-11-02
EP0679780A3 EP0679780A3 (fr) 1995-11-15
EP0679780B1 EP0679780B1 (fr) 1998-05-27

Family

ID=6865558

Family Applications (2)

Application Number Title Priority Date Filing Date
EP92907029A Expired - Lifetime EP0575446B1 (fr) 1991-03-22 1992-03-20 Element de coffrage pour structures de plancher creux
EP95108455A Expired - Lifetime EP0679780B1 (fr) 1991-03-22 1992-03-20 Elément de coffrage pour structures de plancher creux

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP92907029A Expired - Lifetime EP0575446B1 (fr) 1991-03-22 1992-03-20 Element de coffrage pour structures de plancher creux

Country Status (4)

Country Link
EP (2) EP0575446B1 (fr)
AT (2) ATE131897T1 (fr)
DE (3) DE9103515U1 (fr)
WO (1) WO1992016705A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4201710A1 (de) * 1991-09-27 1993-04-08 Ibotec Beschichtungen Gmbh Wand- oder bodenplatte mit gittertraeger
DE4330308C2 (de) * 1993-09-07 1999-03-25 Rauscher Helmuth Verfahren zum Herstellen eines Hohlraumbodens und Schalungselement zu seiner Durchführung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930426A1 (de) 1979-07-26 1981-02-12 Weitz Betonwerk Kleinwallstadt Fussbodenelement fuer eine fussbodenheizung
FR2483990A1 (fr) 1980-06-06 1981-12-11 Bolle Jean Pierre Dalle composee de plaques prefabriquees en matiere plastique
EP0057372A1 (fr) 1981-02-04 1982-08-11 Schmidt Reuter Ingenieurgesellschaft mbH & Co. KG Plancher creux
DE3326622A1 (de) 1983-07-23 1985-02-07 Mainbau Estrich- und Fußboden GmbH, 8500 Nürnberg Folie als verlorene schalung fuer die herstellung eines hohlraumbodens sowie hilfsvorrichtung hierfuer
EP0133556A2 (fr) 1983-08-10 1985-02-27 Goldbach GmbH Holz-, Kunststoff-und Metallverarbeitung Elément préfabriquée de coffrage pour constructions de plancher cellulaire
DE8503850U1 (de) 1985-02-13 1985-05-09 Machowetz, Wolfgang Dietrich, Dipl.-Ing., 8504 Stein Stuetzelement zur herstellung von mit warmluft beheizbaren decken, boeden und waenden
EP0416411A2 (fr) 1989-09-07 1991-03-13 Gebr. Knauf Westdeutsche Gipswerke Plaque porteuse pour un faux plancher sur-élevé

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1193407A (fr) * 1958-03-18 1959-11-03 Bull Sa Machines Perfectionnements aux planchers en éléments amovibles
GB1425977A (en) * 1972-08-07 1976-02-25 Tate Architectural Products Floor panel and elevated floor assembly using same
FR2482994A2 (fr) * 1980-05-23 1981-11-27 Delattre Jean Plancher ou dallage sureleve demontable
EP0368804A1 (fr) * 1988-11-07 1990-05-16 Balz Vogt Ag Elément de support tabulaire pour constructions de bâtiments et de génie civil

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930426A1 (de) 1979-07-26 1981-02-12 Weitz Betonwerk Kleinwallstadt Fussbodenelement fuer eine fussbodenheizung
FR2483990A1 (fr) 1980-06-06 1981-12-11 Bolle Jean Pierre Dalle composee de plaques prefabriquees en matiere plastique
EP0057372A1 (fr) 1981-02-04 1982-08-11 Schmidt Reuter Ingenieurgesellschaft mbH & Co. KG Plancher creux
DE3326622A1 (de) 1983-07-23 1985-02-07 Mainbau Estrich- und Fußboden GmbH, 8500 Nürnberg Folie als verlorene schalung fuer die herstellung eines hohlraumbodens sowie hilfsvorrichtung hierfuer
EP0133556A2 (fr) 1983-08-10 1985-02-27 Goldbach GmbH Holz-, Kunststoff-und Metallverarbeitung Elément préfabriquée de coffrage pour constructions de plancher cellulaire
DE8503850U1 (de) 1985-02-13 1985-05-09 Machowetz, Wolfgang Dietrich, Dipl.-Ing., 8504 Stein Stuetzelement zur herstellung von mit warmluft beheizbaren decken, boeden und waenden
EP0416411A2 (fr) 1989-09-07 1991-03-13 Gebr. Knauf Westdeutsche Gipswerke Plaque porteuse pour un faux plancher sur-élevé

Also Published As

Publication number Publication date
DE59209353D1 (de) 1998-07-02
ATE166687T1 (de) 1998-06-15
WO1992016705A1 (fr) 1992-10-01
EP0575446B1 (fr) 1995-12-20
EP0679780A3 (fr) 1995-11-15
DE9103515U1 (de) 1991-05-29
EP0575446A1 (fr) 1993-12-29
ATE131897T1 (de) 1996-01-15
DE59204769D1 (de) 1996-02-01
EP0679780B1 (fr) 1998-05-27

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