EP0077873A1 - Panneau léger de construction - Google Patents

Panneau léger de construction Download PDF

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Publication number
EP0077873A1
EP0077873A1 EP82103018A EP82103018A EP0077873A1 EP 0077873 A1 EP0077873 A1 EP 0077873A1 EP 82103018 A EP82103018 A EP 82103018A EP 82103018 A EP82103018 A EP 82103018A EP 0077873 A1 EP0077873 A1 EP 0077873A1
Authority
EP
European Patent Office
Prior art keywords
lightweight
base body
underlay
board according
reinforcing insert
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
EP82103018A
Other languages
German (de)
English (en)
Other versions
EP0077873B1 (fr
Inventor
Gerhard Dr. Graab
Hans-Michael Kühl
Wolfgang Winkler
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.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg 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 Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0077873A1 publication Critical patent/EP0077873A1/fr
Application granted granted Critical
Publication of EP0077873B1 publication Critical patent/EP0077873B1/fr
Expired 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
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials

Definitions

  • DE-AS 23 14 463 refers to a lightweight building board of this type.
  • the laying is carried out on support feet at a great distance from the subsurface, and it is therefore necessary to stiffen the lightweight building board in itself in such a way that undesired deformations are avoided.
  • the dimensioning is to be based on the maximum load in question. Even occasionally large ones. Individual loads therefore inevitably result in a large weight of the plate, and thus difficulties in assembly.
  • the invention has for its object to develop a lightweight board that can withstand the normal load without noticeable deformation, and no permanent damage remain after a strong overload.
  • the proposed lightweight board is not usually laid on supports, but directly on the hard-to-walk underground, for example leveled earth or a concrete hall floor. She has just been trained and, in this respect, is also able to relocate within the association to compensate for the irregularities in general to such an extent that good accessibility is guaranteed.
  • the training is regularly rectangular or square, with edge lengths of 0.5 to 2.1 m being preferred.
  • the base body can consist of any relevant polymeric material, as long as there is sufficient flexibility.
  • PVC and rubber have proven their worth.
  • foamed or otherwise voided materials often allows a significant reduction in weight with good properties, which is easy Assembly is of great importance.
  • the entire body is supported by a reinforcement insert or underlay made of an elastic material.
  • This is dimensioned and matched to the elastic properties of the base body so that the deflection of a 0.5 m wide strip under a uniformly distributed surface load of 3000 N / m 2 at a distance of the support points of at least one meter at least 10 mm and at a distance of Support points of 0.5 m are at most 1.0 mm.
  • a deflection of at least 5 mm in the first-mentioned load case and at most 0.5 mm in the last-mentioned load case is preferred.
  • the proposed reinforcement insert or underlay does not therefore have the task of avoiding any clearly visible deflections under all circumstances even when large loads occur, but rather, on the contrary, the reinforcement insert or underlay is intended in these cases, give way elastically and support yourself on the uneven surface.
  • An overload, i.e. Exceeding the elastic formability is reliably avoided in this way, and the lightweight panel immediately returns to its original, flat shape following such a violent deformation.
  • the proposed lightweight board is excellently suited for furnishing trade fair or other exhibition areas.
  • a relocation is often necessary here, and the proposed lightweight board not only enables particularly simple assembly, but it can be driven over without the risk of damage by fork-lift trucks, enables a precise appearance of the installation to be achieved without great effort and is easy to walk at the same time.
  • the anchoring must be carried out in such a way that the resilient resilience of the lightweight building board does not affect itself is pregnant. For this reason, dowel anchoring along a longitudinal edge is preferred, while the remaining areas lie more or less loosely on the raised areas of the substrate.
  • a smooth joint joint can be achieved by overlapping the reinforcement inserts or underlays.
  • the butt joint formed can also be bridged on the underside by a tab which is screwed on both sides to the reinforcing inserts or underlays, which are highly stable from a mechanical point of view.
  • the adaptability to the subsurface, and in some respects also the accessibility, can be improved by backing the lightweight board with an open-pore foamed, cross-linked plastic.
  • the interior of the pore structure must be able to communicate with the environment, which is why a surface covering with a film is not possible.
  • the use of a suitably designed lightweight board is therefore restricted to the area of dry rooms.
  • the base body has good inherent stability
  • the reinforcing insert or underlay is connected to the base body in a shear-resistant manner.
  • the result is an increase in the bending elasticity of the lightweight board.
  • a corresponding mutual anchoring can be achieved by gluing or positive locking, for example by columnar projections of the base body, which engage in appropriately designed recesses in the reinforcement insert or underlay.
  • a permanent connection between the two parts has the further advantage of being easy to assemble. In cases where the reinforcement insert or underlay is enclosed on all sides by the polymeric material of the base body, additional corrosion protection results.
  • the reinforcement insert or underlay can be made from any resilient materials. Steel, especially spring steel, is preferred because of its high modulus of elasticity and because of its easy and inexpensive availability.
  • glass fiber-reinforced plastics enable a reduction in the total weight with complete protection against corrosion, which is advantageous in terms of simplified installation.
  • a firm connection with the material of the base body by gluing can easily be achieved in both cases.
  • the reinforcement insert or underlay can consist of a plate which covers the entire surface of the base body and which connects the opposite side edges.
  • a correspondingly designed lightweight board can be used universally and is capable of covering any irregularities in the surface that are assigned to one another.
  • the adaptability to uneven surfaces can be improved by using a reinforcing insert or underlay with at least one opening. Good torsional elasticity is achieved if it is slit-shaped and almost reaches the marginal edges on both sides with a straight line.
  • the width of the slot must not be greater than the smallest layer thickness of the base body arranged above.
  • a still further adaptability of the lightweight building board to unevenness of the subsurface results from the use of reinforcement inserts or underlays which contain a plurality of slots of this type extending parallel to one another. In a direction transverse to the extension of the slots, there is an increased compensation for uneven floors. For this reason, appropriately equipped lightweight building boards should be laid in such a way that the slots extend as parallel as possible to their course.
  • the reinforcement insert or underlay can also consist of a plurality of rods and / or strips attached at regular intervals and connecting the opposite side edges of the base body. These can optionally be connected to one another, for example by secondary strips or rods, or also interwoven with one another.
  • a particularly reliable anchoring in or on the base body can be achieved if the polymeric mass used for its production is pressed directly onto or into the existing cavities before it hardens.
  • the mutual connection and the connection to the subsurface can be made considerably easier if cutouts for receiving the required anchoring means are already made during manufacture.
  • Such recesses are expediently made in the area of all 4 side edges and are sealed by the remaining surface of harmoniously adapted rubber plugs.
  • the cavity between the underside of the rubber plugs and the base of the recesses is dimensioned sufficiently large to accommodate the required anchoring aids, for example a screw head or a clamp. In this respect, these can appear just as annoyingly as the recesses themselves.
  • a base body made of a rubber-elastic material, which is square and has a minimum thickness of 6 mm with an edge length of one meter.
  • Above the surface rise from the base body shaped truncated cone-shaped projections, which have a minimum diameter of 27 mm at a height of 3 mm, as well as a constant, mutual center-to-center distance of 33 mm.
  • a stiffening insert 6 is vulcanized into the base body at a distance of 1 mm from the lower boundary surface, consisting of a perforated plate made of mild steel.
  • the edge length is 990 mm and the assignment to the base body is symmetrical, as a result of which the edge edges are padded on all sides by an approximately 5 mm wide rubber layer 13.
  • the perforated plate has a multiplicity of cylindrical openings 7 of equal size, arranged at regular intervals from one another.
  • the diameter is 12 mm with a mutual center distance in the longitudinal and transverse directions of 20 mm.
  • FIG. 1 shows a bandage of several light-weight building boards designed in this way, which are held together by clips 2 and which are laid on an uneven surface 5.
  • the surface irregularities were reproduced in a highly exaggerated manner to clarify the function of the object of the application.
  • the composite of several lightweight building boards is supported along the butt joints, of which the middle one is deposited with a thin sheet metal strip 4 to compensate for a considerable deviation of the subsoil from the normal profile.
  • the column spacing on which the static calculation is based is therefore identical to the edge length of the lightweight panels, i.e. dimension A.
  • the present invention is based on the knowledge that the dimension A when laying floor panels with a resilient property on a surface with only slight surface irregularities, for example a concrete floor produced with customary manufacturing tolerances, is generally not to be understood as a constant size, but rather that it is common Even with a small, load-related deflection, additional support points or areas result that lie within the ur originally assumed column spacing. The situation is illustrated by the distance B entered. A corresponding reduction in the column spacing is of great practical importance in that, for example, halving is synonymous with quadrupling the load capacity achieved with the same cross-section. In practical cases, this means an increase in stiffness, ie the resistance to further deformations with the same load. In this way, it is not possible to guarantee a completely flat surface, which is desirable in terms of good accessibility, but the deformations that arise when walking on do not appear to be a nuisance and become many times as a result of the low weight, which makes installation easy weighed.
  • FIG. 3 shows the butt joint 3 from FIG. 2 in an enlarged view in order to clarify the details.
  • two lightweight building boards 1 of the type described above abut one another along an edge extending perpendicular to the plane of the drawing. They each contain an elastic reinforcement insert 6 made of a perforated plate and completely embedded in the base body 14 made of elastomeric material.
  • the base body has on the upper side arranged in a regular grid, frusto-conical elevations 8. Rubber layers 9 and 13 are present between the reinforcement insert and the underside and between the reinforcement insert and the edge.
  • the butt joint is underlaid by a metal sheet 4 and is supported by this on the base 5.
  • the base body and the reinforcement inserts 6 of both lightweight building boards 1 contain, in mutually opposite zones, a recess 10 for receiving the clamp 2 inserted loosely from above.
  • the recess 10 and the clamp 2 used are covered on both sides on the visible side by plugs 11, the outer area of which is frustoconical and fits harmoniously into the pattern formed by the projections 8.
  • the recess 10 has a diameter 3.5 mm larger than the pin 12. This ensures good mobility of the lightweight panels on both sides in the event of an overload. Such mobility is important in relation to the change in length resulting from deflection.
  • a good anchoring to the ground can be achieved by attaching a dowel screw, which can also be attached in a not shown recess of the bracket 2.
EP82103018A 1981-10-27 1982-04-08 Panneau léger de construction Expired EP0077873B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813142538 DE3142538A1 (de) 1981-10-27 1981-10-27 "leichtbauplatte"
DE3142538 1981-10-27

Publications (2)

Publication Number Publication Date
EP0077873A1 true EP0077873A1 (fr) 1983-05-04
EP0077873B1 EP0077873B1 (fr) 1984-12-12

Family

ID=6144916

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103018A Expired EP0077873B1 (fr) 1981-10-27 1982-04-08 Panneau léger de construction

Country Status (2)

Country Link
EP (1) EP0077873B1 (fr)
DE (2) DE3142538A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594870A1 (fr) * 1986-02-21 1987-08-28 Desjoyaux Catherine Dalle autoporteuse perfectionnee pour couverture et reparations de sols et procede pour sa mise en oeuvre
WO1997025480A1 (fr) * 1996-01-08 1997-07-17 Knoebel Gerd Franz Revetement de sol
WO1998046830A1 (fr) * 1997-04-16 1998-10-22 Variform Oy Systeme de joint

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339553A1 (de) * 1983-11-02 1985-05-15 Walter 6053 Obertshausen Kempe Bodenbelag fuer tennisplaetze u.dgl.
DE4420867C2 (de) * 1994-06-15 1998-07-02 Stahlgruber Gruber & Co Otto Plattenkonstruktion für Fahrbahnen
DE19720006C2 (de) * 1997-05-13 2002-06-13 Willibald Hergeth Bodenbelag und Decke für Sportplätze

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR758144A (fr) * 1933-07-08 1934-01-11 Dalle de pavage ou de carrelage rigide, en caoutchouc souple
DE2314463B2 (de) * 1973-03-23 1976-10-14 Bodenbelag
DE2927425A1 (de) * 1979-07-06 1981-01-08 Gabler Martin Waermegedaemmter fertigbauteil zum herstellen von boeden

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7203116U (de) * 1972-05-18 Berleburger Schaumstoffwerk GmbH, 5920 Berleburg Bodenbelagplatte
GB229551A (en) * 1924-06-18 1925-02-26 Charles Washington Read Improvements in or relating to rubber surfaced roads or flooring
FR1139003A (fr) * 1955-12-21 1957-06-24 L M Doittau Ets Perfectionnements aux procédés de préassemblage et pose d'éléments de revêtement pour sols et murs
DE1937468C3 (de) * 1966-12-03 1975-03-20 Verton & Wellensiek Fussbodenbelag Bad Godesberg, 5300 Bonn Elastische, wasserdurchlässige Bodenbelagplatte

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR758144A (fr) * 1933-07-08 1934-01-11 Dalle de pavage ou de carrelage rigide, en caoutchouc souple
DE2314463B2 (de) * 1973-03-23 1976-10-14 Bodenbelag
DE2927425A1 (de) * 1979-07-06 1981-01-08 Gabler Martin Waermegedaemmter fertigbauteil zum herstellen von boeden

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2594870A1 (fr) * 1986-02-21 1987-08-28 Desjoyaux Catherine Dalle autoporteuse perfectionnee pour couverture et reparations de sols et procede pour sa mise en oeuvre
WO1997025480A1 (fr) * 1996-01-08 1997-07-17 Knoebel Gerd Franz Revetement de sol
WO1998046830A1 (fr) * 1997-04-16 1998-10-22 Variform Oy Systeme de joint

Also Published As

Publication number Publication date
DE3142538A1 (de) 1983-05-11
EP0077873B1 (fr) 1984-12-12
DE3261510D1 (en) 1985-01-24

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