EP0307415B1 - Hohlraumboden - Google Patents

Hohlraumboden Download PDF

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Publication number
EP0307415B1
EP0307415B1 EP87905432A EP87905432A EP0307415B1 EP 0307415 B1 EP0307415 B1 EP 0307415B1 EP 87905432 A EP87905432 A EP 87905432A EP 87905432 A EP87905432 A EP 87905432A EP 0307415 B1 EP0307415 B1 EP 0307415B1
Authority
EP
European Patent Office
Prior art keywords
support feet
cavity floor
ribs
floor according
floor
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.)
Expired - Lifetime
Application number
EP87905432A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0307415A1 (de
Inventor
Dieter Thiel
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.)
Schmidt Reuter Ingenieurgesellschaft mbH and Co KG
Original Assignee
Schmidt Reuter Ingenieurgesellschaft mbH and Co KG
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 Schmidt Reuter Ingenieurgesellschaft mbH and Co KG filed Critical Schmidt Reuter Ingenieurgesellschaft mbH and Co KG
Priority to AT87905432T priority Critical patent/ATE65280T1/de
Publication of EP0307415A1 publication Critical patent/EP0307415A1/de
Application granted granted Critical
Publication of EP0307415B1 publication Critical patent/EP0307415B1/de
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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D5/00—Hot-air central heating systems; Exhaust gas central heating systems
    • F24D5/06—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated
    • F24D5/10—Hot-air central heating systems; Exhaust gas central heating systems operating without discharge of hot air into the space or area to be heated with hot air led through heat-exchange ducts in the walls, floor or ceiling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628—Nonplanar uniform thickness material
    • Y10T428/24669—Aligned or parallel nonplanarities
    • Y10T428/24678—Waffle-form
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/2481—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including layer of mechanically interengaged strands, strand-portions or strand-like strips
    • Y10T428/24818—Knitted, with particular or differential bond sites or intersections

Definitions

  • the invention relates to a cavity floor according to the preamble of claim 1.
  • Raised floors are known with a profiled floor film, which is placed with its support feet on the subfloor or on an insulation layer and forms a formwork for the screed material to be applied, from which the top floor is made EP-A-0 057 372. Below the floor film is formed the trusses around a cavity, which for laying cables, hoses and the like. and can be used as a warm air room for underfloor heating.
  • the well-known floor film consists of a flexible, soft plastic material that cannot be walked on.
  • the screed is applied to the flooring film as a thin, liquid screed and is evenly distributed. The feet adapt to any unevenness in the sub-floor.
  • This flooring film has the disadvantage that it cannot be walked on because of its low load-bearing capacity and therefore does not allow the liquid screed material to be smoothed out manually.
  • the support film In another known cavity floor (WO-A-8602120), the support film consists of square fields which taper in the support feet, but whose square structure is retained in the support feet. The fields run at right angles and parallel to one another, so that a grid of webs crossing at right angles remains between the fields.
  • the support feet each have a lower truncated pyramid and an adjoining upper truncated pyramid with different apex angles. Both truncated pyramids are separated from each other by a horizontal crease line.
  • the upper truncated pyramids have ribs that bulge outwards.
  • the support film In the known cavity floor, the support film is only stiffened by the ribs so that it can withstand the weight of the screed mass.
  • the ribs only have the function of reinforcing the laterally protruding upper truncated pyramid so that it has approximately the same load-bearing capacity as the unreinforced lower truncated pyramid.
  • Such a support sheet the thickness of which is less than 1 mm, has no load-bearing capacity which allows people to walk on the support sheet before the screed is filled.
  • the invention has for its object to provide a cavity floor of the type specified in the preamble of claim 1, the film is accessible before applying the screed and yet adapts to any unevenness in the sub-floor and can be filled with screed-like consistency.
  • the horizontal areas of the floor film between the support feet are soft and flexible, while the support feet themselves are so stiff on the one hand due to the material thickness and on the other hand through their profiling that they have a high degree of load-bearing capacity.
  • the floor film is therefore flexible in the deformation areas, while the support feet are stiffened by ribs so that they can be called rigid both in the vertical direction and against lateral forces.
  • the rigid deformation feet are immediately followed by the horizontal deformation area, so that the film can deform freely in the entire distance between two support feet and adapt to the local conditions.
  • the base feet of the floor film form non-deformable blocks, while the upper deformation area is flexible.
  • the feet are of such a shape and size that a foot cannot sink into them, i.e. the diameter of their inner circle at the open end should be less than 75 mm. Furthermore, due to their shape and the shape of the ribs and the steepness of their lateral surface, the support feet have such a high internal stiffness that deformations are neither possible under the weight of a person nor by lateral pressure.
  • a high dimensional stability of the support feet can be achieved in that the edge of a support foot at the open end has no straight sections that are longer than 20 mm, and preferably none at all rectilinear sections.
  • the forces from the horizontal upper area of the floor foil are introduced without deformation into the outer surface and into the ribs via curved folding lines. At the lower ends of the ribs there are at most short horizontal straight crease lines.
  • the flooring film has a low weight, is easy to cut due to the large area of the horizontal deformation areas and enables quick and easy installation and adaptation to the building floor plan.
  • a particular advantage is that the floor covering can be walked on without a load-distributing cover.
  • the wall thickness of the support feet is at least about 1 mm and at most about 2 mm, preferably at most about 1.2 mm. This wall thickness is dimensioned on the one hand so that the floor film has a high load-bearing capacity in the vertical direction on the support feet, taking into account the stiffening shape, but on the other hand so thin that adjacent film plates or film strips can be placed on top of one another at their edges without steps in the screed layer arise.
  • edges of foil plates or foil strips can be placed loosely on one another without the need for gluing or sealing between them.
  • the screed applied in a pulp-like consistency does not penetrate between the loose edge areas.
  • support feet can also be placed in one another in the overlap regions without significant height deviations of the top of the film-like formwork.
  • the low wall thickness of the film material is that when the floor cavity is used for the distribution of heating air, the top floor has a low thermal conductivity, so that the heat from the heating air is well transferred to the top floor and is radiated or derived therefrom.
  • the wall thickness of the film should therefore be as small as possible. The lower limit of this wall thickness is determined by the mechanical strength and load capacity.
  • the ribs form inwardly directed channels. These channels increase the section modulus or the rigidity of the support feet, they reduce the volume of the support feet and thereby also the amount of screed required for filling, they cause turbulence if the floor cavity is used for the distribution of heating air and increase the surface area by one to achieve better heat transfer from the warm air to the screed.
  • At least five ribs are preferably distributed over the circumference of the support feet.
  • the floor film according to the invention is preferably supplied in plate form, which is always a film web of a defined width and limited length.
  • the floor film according to FIGS. 1 and 2 consists of plastic material of uniform thickness, which is at least about 1 mm and at most 2 mm, preferably at most about 1.2 mm.
  • the film has a web or plate-shaped flat area 10, from which the support feet 11 are formed by deep drawing.
  • the support feet 11 generally have a frustoconical shape and a circular horizontal cross section, with inwardly frustum-shaped channel-shaped ribs 13 being formed in the frustoconical surface 12, which are round and have an approximately semicircular cross section.
  • the support feet extend from the horizontal region 10 with a constant cross-section to the bottom surface 14.
  • the ribs 13 form longitudinal channels, which (in a view from below according to FIG.
  • ribs 13 are star-shaped to the upper end of the support foot 11 extend.
  • the ends of the inwardly directed ribs 13 are filled at the top by the material of the region 10 and open towards the bottom, so that the bottom surface 14 has approximately the shape of a gear wheel.
  • six ribs 13 are arranged at regular intervals around the circumference of the supporting foot 11.
  • the diameter of the circumferential circle of a support foot 11 on the lower closed end face of the support foot is designated D c .
  • This circumferential circle is the circle that envelops all contours of the end face.
  • the diameter of the inner circle of the support foot at the open end is designated D o .
  • the circles with the diameters D c and D o lie on a cone jacket, the cone angle " ⁇ " of which is relatively small and is a maximum of 50 °, preferably a maximum of 40 °.
  • the support feet 11 are arranged at the crossing points of a network of intersecting lines, so that they form longitudinal and transverse rows.
  • the distance a between the open ends of neighboring feet is nowhere greater than 75 mm.
  • the adjacent support feet include both the support feet arranged in the same rectangular rows as the support foot in question and the support feet arranged in a diagonal row with the support foot in question.
  • the distance a refers to two supporting feet in a diagonal row.
  • This distance a is at least equal to the diameter D o of the inner circle on the open support foot, so that the deformation areas 10 have a surface area that is large enough to allow deformations of these deformation areas to adjust the height of the support feet to an uneven sub-floor.
  • the distance a must not exceed 75 mm, because otherwise there is a risk that a person walking on the floor foil can sink between two support feet.
  • the width of an adult's heel is about 80 mm. Such a heel cannot sink into the supporting foot 11.
  • a thermal insulation layer 17 is arranged on the sub-floor 16, for example a raw concrete ceiling, and the floor film 15 of FIGS. 1 and 2.
  • the screed 18 is applied to the floor film 15 to form the top floor. This screed fills the support feet 13 completely and forms a continuous layer over the horizontal area 10.
  • the floor film 15 previously placed loosely on the thermal insulation layer 17 can be walked on without load-distributing aids.
  • the floor film can also be reversed, i.e. can be used with the support feet pointing upwards. It is also not necessary to use the floor film as formwork for a screed material, but the floor film can be used as a load-bearing element of a cavity floor, with a load-distributing layer being arranged over it.
  • the stiffening of the support feet 11 can also be achieved by means of ribs which are directed outwards, but this results in a greater material requirement for screed and a lower load-bearing capacity.
  • each support foot 11 has outwardly directed ribs 13, which in turn are reinforced by narrower ribs 20, which are also directed outwards.
  • Each support foot 11 has four radial ribs 13, which are arranged in a cross shape and extend over the entire height of the support foot. The radial width of the ribs 13 increases from the end wall 14 towards the open end.
  • the horizontal fold line 21, in which the lateral surface 12 of the support foot merges into the horizontal surface 10, has an arc-shaped concave region 21a in the area between two support feet 13 - with respect to the central axis of the support foot - and an arcuate-convex area 21b on the support feet 13. The arcuate areas 21a and 21b smoothly merge.
  • the horizontal fold line 21 has no straight sections, the ability to transfer load from the region 10 to the support foot 11 is improved and the stability of the support feet is increased.
  • the circumferential circle 22 of the support foot, on its end face 14 has the diameter D c and the inner circle 23 of the support foot at the open end has the diameter D o .
  • the imaginary circles 22 and 23 lie on an (imaginary) cone jacket, the cone angle of which is denoted by ⁇ .
  • FIGS. 4 and 5 is the maximum distance a of adjacent support feet at no point greater than 75 mm and further at no point smaller than the diameter D c of the circumferential circle 22 of the end face 14. This ensures that a shoe heel in area 10 cannot collapse that but on the other hand the flat area 10 can perform its function as a deformation area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Floor Finish (AREA)
EP87905432A 1986-07-31 1987-07-29 Hohlraumboden Expired - Lifetime EP0307415B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87905432T ATE65280T1 (de) 1986-07-31 1987-07-29 Hohlraumboden.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE8620530 1986-07-31
DE8620530U 1986-07-31
DE19863637987 DE3637987A1 (de) 1986-07-31 1986-11-07 Hohlraumboden
DE3637987 1986-11-07

Publications (2)

Publication Number Publication Date
EP0307415A1 EP0307415A1 (de) 1989-03-22
EP0307415B1 true EP0307415B1 (de) 1991-07-17

Family

ID=25849145

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87905432A Expired - Lifetime EP0307415B1 (de) 1986-07-31 1987-07-29 Hohlraumboden

Country Status (5)

Country Link
US (1) US4993202A (enrdf_load_stackoverflow)
EP (1) EP0307415B1 (enrdf_load_stackoverflow)
JP (1) JPH02500376A (enrdf_load_stackoverflow)
DE (2) DE3637987A1 (enrdf_load_stackoverflow)
WO (1) WO1988000997A1 (enrdf_load_stackoverflow)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE35369E (en) * 1989-02-03 1996-11-05 Guilford (Delaware) Inc. Flooring system especially designed for facilities which house data processing equipment
GB2258792B (en) * 1991-06-04 1996-03-13 Alan Bamforth Improvements in or relating to drainage elements or the like and meth od of manufacturing same
US5489462A (en) * 1993-02-04 1996-02-06 Sieber; Werner Distance plate building component with a protective, ventilating, heat-insulating and drainage function
US5499476A (en) * 1993-08-31 1996-03-19 Interface, Inc. Low profile raised panel flooring with metal support structure
US5673522A (en) * 1994-03-25 1997-10-07 Guilford, Inc. Junction box forlow profile raised panel flooring
USRE39097E1 (en) 1994-03-25 2006-05-23 Guildford (Delaware), Inc. Metal support framework for low profile raised panel flooring
US5675950A (en) * 1994-03-25 1997-10-14 Guilford (Delaware), Inc. Metal support framework for low profile raised panel flooring
US5713168A (en) * 1994-03-25 1998-02-03 Guilford (Delaware), Inc. Junction box for low profile raised panel flooring
DE4435895C2 (de) * 1994-10-07 2001-09-20 Freudenberg Carl Fa Hohlraumboden
US5828001A (en) * 1995-02-15 1998-10-27 Guilford (Delaware), Inc. Plastic junction box with receptacle boxes
FR2777829B1 (fr) * 1998-04-28 2000-07-21 Listel Facade Sarl Procede de realisation d'enduit a motifs decoratifs et outils permettant la mise en oeuvre du procede
DE29916642U1 (de) * 1999-09-21 2000-01-05 Siegmund, Helmut, 53604 Bad Honnef Distanzplatte für einen Hohlraumboden und Hohlraumboden
IT249421Y1 (it) * 2000-09-25 2003-05-07 Geoplast Srl Elemento modulare per la realizzazione di solai aerati e/o isolati.
JP4448938B1 (ja) * 2009-05-22 2010-04-14 株式会社ホワイトインパクト 樹脂シートの成形品
US9188348B2 (en) 2009-08-28 2015-11-17 Progress Profiles Spa Method and apparatus for positioning heating elements
FR2994667B1 (fr) * 2012-08-24 2019-12-13 Frederic Brun Feuille d'ame de materiau structural, ame et materiau structural comportant une telle feuille
US8950141B2 (en) 2012-09-12 2015-02-10 Schluter Systems L.P. Veneer underlayment
US9016018B2 (en) * 2013-01-22 2015-04-28 Laticrete International, Inc. Support plate for installing tile
CN107076428B (zh) * 2014-07-03 2020-08-25 泰尔太阳能有限责任公司 太阳能系统
US10215423B2 (en) 2014-08-18 2019-02-26 Progress Profiles S.P.A. Method and apparatus for positioning heating elements
PL3183505T3 (pl) 2014-08-18 2019-11-29 Progress Profiles Spa Podkład do układania elementów grzewczych i montażu podłogi
CA2992744C (en) * 2015-07-31 2023-08-01 Skydex Technologies, Inc. Void cells with outwardly curved surfaces
US9726383B1 (en) 2016-06-17 2017-08-08 Progress Profiles S.P.A. Support for radiant covering and floor heating elements
US10859274B2 (en) 2016-04-01 2020-12-08 Progress Profiles S.P.A. Support for radiant covering and floor heating elements
USD971449S1 (en) 2016-04-13 2022-11-29 Progress Profiles S.P.A. Floor underlayment
DE202017101349U1 (de) 2017-03-09 2018-06-12 Werner Schlüter Entkopplungsmatte
US11283400B2 (en) 2018-08-11 2022-03-22 Tyll Solar, Llc Solar energy system
JP1669842S (enrdf_load_stackoverflow) * 2019-09-03 2020-10-12
USD1036979S1 (en) 2020-04-06 2024-07-30 Progress Profiles S.P.A. Floor underlayment
USD1036242S1 (en) 2020-04-22 2024-07-23 Progress Profiles S.P.A. Floor underlayment
USD1036243S1 (en) 2020-10-09 2024-07-23 Progress Profiles S.P.A. Floor underlayment

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Publication number Priority date Publication date Assignee Title
CA750096A (en) * 1967-01-10 A. Baumann John Composite panel
GB709279A (en) * 1951-04-30 1954-05-19 W A Barclay Patentees Ltd Improvements in or relating to constructional units
BE549944A (enrdf_load_stackoverflow) * 1955-08-01
GB996807A (en) * 1960-07-20 1965-06-30 George Mountford Adie Improvements in and relating to a method of making constructional slabs or floors
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CA1181215A (en) * 1981-02-04 1985-01-22 Wolfgang Radtke Hollow floor
CH654059A5 (de) * 1984-10-04 1986-01-31 Bta Boden Technik Ag Tragfaehige, biegbare stuetzfolie und deren verwendung fuer oberboeden.

Also Published As

Publication number Publication date
DE3637987C2 (enrdf_load_stackoverflow) 1988-09-29
WO1988000997A1 (en) 1988-02-11
US4993202A (en) 1991-02-19
DE3771500D1 (de) 1991-08-22
DE3637987A1 (de) 1988-02-04
JPH02500376A (ja) 1990-02-08
EP0307415A1 (de) 1989-03-22

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