EP4127347B1 - Liaison languette-rainure - Google Patents

Liaison languette-rainure Download PDF

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Publication number
EP4127347B1
EP4127347B1 EP21718069.4A EP21718069A EP4127347B1 EP 4127347 B1 EP4127347 B1 EP 4127347B1 EP 21718069 A EP21718069 A EP 21718069A EP 4127347 B1 EP4127347 B1 EP 4127347B1
Authority
EP
European Patent Office
Prior art keywords
tongue
groove
length
section
trapezoidal cross
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.)
Active
Application number
EP21718069.4A
Other languages
German (de)
English (en)
Other versions
EP4127347C0 (fr
EP4127347A1 (fr
Inventor
Daniel Neubauer
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.)
Neubauer Holztechnik GmbH
Original Assignee
Neubauer Holztechnik GmbH
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 Neubauer Holztechnik GmbH filed Critical Neubauer Holztechnik GmbH
Publication of EP4127347A1 publication Critical patent/EP4127347A1/fr
Application granted granted Critical
Publication of EP4127347C0 publication Critical patent/EP4127347C0/fr
Publication of EP4127347B1 publication Critical patent/EP4127347B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/40—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of a number of smaller components rigidly or movably connected together, e.g. interlocking, hingedly connected of particular shape, e.g. not rectangular of variable shape or size, e.g. flexible or telescopic panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/12—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of solid wood
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202—Details of connections
    • E04B2002/0232—Undercut connections, e.g. using undercut tongues and grooves
    • E04B2002/0234—Angular dovetails
    • E04B2002/0236—Angular dovetails tapered, i.e. dovetail narrows in the direction of tongue or groove
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202—Details of connections
    • E04B2002/0243—Separate connectors or inserts, e.g. pegs, pins or keys
    • E04B2002/0252—Dovetail keys

Definitions

  • the invention relates to a tongue for a tongue-and-groove connection, a component with a groove for a tongue-and-groove connection and an at least two-part component with at least one tongue-and-groove connection of its parts.
  • the main area of application of the invention is building elements made of wood, especially for the construction industry, e.g. the provision of wall, roof and ceiling panels that are composed of wooden profiles using tongue-and-groove connections.
  • Such components are, for example, from DE 10 2014 006 621 A1 already known.
  • the panel-shaped components are composed of solid wood profiles. Their wooden tongue and groove connections are glue and metal free. The wind and airtightness expected in the construction industry requires a correspondingly high surface pressure at the interfaces of the tongue and groove connection.
  • the grooves of the tongue and groove connections according to DE 10 2014 006 621 A1 are undercut. This results in increased strength through positive locking transversely to the groove in the plane of the plate formed.
  • undercut grooves or limited space during production require that the tongues be inserted into the grooves in the longitudinal direction. If an appropriate surface pressure between the tongue and groove is to be achieved, the effort required to overcome the friction between the tongue and groove when inserting the tongue into the groove is very large and increases with the length of the tongue, which can be several meters in the construction industry.
  • the invention is based on the object of providing a tongue-and-groove connection that requires less effort than in the prior art can be assembled, does not require any auxiliary material such as adhesive or sealant in addition to the actual material for the tongue and groove, and meets the construction industry's requirements for tightness and strength.
  • the spring can be formed in one piece with the component that it is intended to connect. Alternatively, it can be a separate component that interacts with a groove in two components to be connected.
  • the cross section of the spring in the sense of this description is always that of the actual spring without the component to be connected.
  • the invention is particularly suitable for wooden tongue-and-groove connections in which the tongue is made of wood and the groove is formed in wood.
  • the feature of the accuracy of fit means that it is present at the end of the assembly of a tongue-and-groove connection according to the invention.
  • the spring is inserted with the end with the smaller cross-section in the longitudinal direction into the groove at the end with the larger cross-section. Therefore there is initially play between the tongue and the groove. As you continue to push in, this play becomes smaller until the walls (surfaces) of the tongue and groove nestle together. There is permanent surface contact on the walls and ultimately surface pressure between the tongue and groove along the entire length of the connection. In this final phase of inserting the spring, the friction of the surface pressure must now be overcome, but only over a distance that is a fraction of the length of the spring. At the end of assembly, the tongue sits snugly and tightly in its groove over its entire length.
  • the length of the one parallel side of the trapezoidal cross section of the tongue or groove, which decreases over the length of the tongue or groove, is selected so that it is the distance between the walls of the tongue and groove in areas of the cross section, in which there should be surface pressure at the end of assembly, at least co-determined.
  • the aspect ratio of the two parallel sides with different lengths of the trapezoidal cross section of the tongue or groove is in the range from 1:1.05 to 1:1.7; preferably in the range of 1:1.1 to 1:1.5; particularly preferably from 1:1.21 to 1:1.44.
  • the ratio of the height of the trapezoidal cross-section to the length of the longer side of the two parallel sides of the trapezoidal cross-section of the tongue or groove is in the range from 1:1 to 1:5; preferably in the range from 1:2 to 1:4; particularly preferably from 1:1.2 to 1:3.
  • FIG. 1 There are two identical profiles 1 made of solid wood next to each other, each with a rectangular cross section and a comparatively large longitudinal extent of, for example, three meters.
  • the two profiles 1 are to be connected to one another using a tongue-and-groove connection according to the invention.
  • a continuous groove 2 is milled out in one of the two narrow sides of both profiles 1 of the same design.
  • the groove 2 is undercut and has one trapezoidal cross section, the longer side 3 of which forms the base of the groove 2.
  • the dimension of the cross section on its longer side 3 is not constant. She is at the in Figure 1 visible front end 4 of the solid wood profile 1 is largest and increases in the longitudinal direction of the groove 2 to the other, in Figure 1 towards the rear end 5 of the profile.
  • the remaining cross-sectional dimensions of the groove 2 are constant over the entire length of the solid wood profile 1. But since the length of the long side 3 of the trapezoidal cross section decreases towards the rear end 5 of the groove 2, in other words the groove at the base 3 becomes narrower, the inclination of the two side walls of the groove relative to the base also decreases.
  • the two solid wood profiles 1 lie next to each other so that their grooved narrow sides abut each other, compare Figure 2 .
  • the two grooves 2 form a channel-like double groove 22 with a symmetrical cross section corresponding to the two grooves, i.e. in the form of two identical trapezoids mirrored to one another on the shorter of their two parallel sides, see also Figure 3 .
  • a spring 11 made of solid wood of the same length as the profiles 1 and with a cross section that corresponds exactly to the cross section of the double groove 22 in the two profiles is used to create the connection Figure 3 .
  • the spring 11 is inserted with the end 15, which has a smaller cross section, into the double groove of the adjacent profiles, from the end face 4 of the two profiles, on which their two grooves 2 have the larger cross section.
  • Figure 2 shows the two profiles 1 with the spring 11 largely pushed in.
  • the spring 11 has play in the double groove 22. Since sections of the tongue with an increasingly larger cross-section enter the double groove as you push it in further, the play increasingly decreases until the groove 22 and tongue 11 touch and finally surface pressure occurs between the tongue and groove along the entire length of the same. Only in this final stage of assembly does the spring have to be pushed in with great force in order to overcome the friction between the double groove and the spring.
  • the dimension of the two long sides of the cross section of the double spring increases in the longitudinal direction of the spring from the rear end in the insertion direction front end by 3 mm. That's a decrease from 100% to 92%. Accordingly, in the opposite direction, the dimension of the angle between the long and inclined sides of the trapezoid decreases by 6 degrees.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Joining Of Building Structures In Genera (AREA)

Claims (12)

  1. Languette (11) pour un assemblage à rainure et languette à ajustement précis,
    dans laquelle la languette ressort (11) présente une section transversale trapézoïdale;
    la section transversale trapézoïdale présente deux côtés parallèles de longueur différente;
    la section transversale trapézoïdale présente la forme d'un trapèze isocèle;
    la hauteur de la section transversale trapézoïdale est constante sur la longueur de la languette (11); et
    la longueur de l'un des côtés parallèles de la section transversale trapézoïdale de la languette (11) diminue de manière continue sur la longueur de la languette (11);
    caractérisé en ce que
    la longueur de l'autre des côtés parallèles de la section transversale trapézoïdale de la languette (11) reste constante sur la longueur de la languette (11).
  2. Languette (11) selon la revendication 1, dans laquelle la longueur du plus long des deux côtés parallèles (13) de la section transversale trapézoïdale diminue de manière continue sur la longueur de la languette (11).
  3. Languette (11) selon la revendication 1, dans laquelle la longueur du plus petit des deux côtés parallèles de la section trapézoïdale diminue de manière continue sur la longueur de la languette (11).
  4. Languette (11) selon la revendication 1, 2 ou 3, dans laquelle la longueur du côté parallèle de la section trapézoïdale, dont la longueur diminue sur la longueur de la languette (11), représente à une extrémité de la languette (11) de 80% à 98%, de préférence de 90% à 95%, et plus préférentiellement de 92% à 94% de sa longueur à l'autre extrémité de la languette (11).
  5. Languette (11) selon la revendication 1, 2, 3 ou 4, qui présente à l'une de ses deux extrémités un repère servant d'aide au montage.
  6. Languette (11) selon la revendication 1, 2, 3, 4 ou 5 en bois pour une rainure (2) formée dans du bois, dans laquelle le bois de la languette (11) a des propriétés hygroscopiques et/ou une humidité résiduelle au montage différente de celle du bois formant la rainure (2), de préférence de telle sorte que la pression de surface entre la rainure (2) et la languette (11) augmente avec le temps après le montage.
  7. Elément de construction comprenant deux languettes (11) selon l'une des revendications précédentes, caractérisé en ce que l'élément de construction présente une section transversale (14, 15) sous la forme de deux trapèzes identiques, réfléchis l'un par rapport à l'autre sur le plus court de leurs deux côtés parallèles.
  8. Elément de construction (1) avec une rainure (2) pour recevoir de manière ajustée
    la languette (11) d'un assemblage à rainure et languette, dans lequel
    la rainure (2) présente une section transversale trapézoïdale;
    la section transversale trapézoïdale présente deux côtés parallèles de longueur différente ;
    la section transversale trapézoïdale a la forme d'un trapèze isocèle ;
    le plus court des côtés parallèles de la section trapézoïdale se trouve sur le côté ouvert de la rainure (2) ;
    la hauteur de la section trapézoïdale est constante sur la longueur de la rainure (2); et
    la longueur de l'un des côtés parallèles de la section transversale trapézoïdale de la rainure (2) diminue de manière continue sur la longueur de la rainure (2);
    caractérisé en ce que
    la longueur de l'autre des côtés parallèles de la section transversale trapézoïdale de la rainure (2) reste constante sur la longueur de la rainure (2).
  9. Élément de construction (1) avec une rainure (2) selon la revendication 8, dans lequel la longueur du plus long des deux côtés parallèles (3) de la section transversale trapézoïdale diminue de manière continue sur la longueur de la rainure (2).
  10. Élément de construction (1) avec une rainure (2) selon la revendication 8, dans lequel la longueur du plus court des deux côtés parallèles de la section transversale trapézoïdale diminue de manière continue sur la longueur de la rainure (2).
  11. Élément de construction (1) avec une rainure (2) selon la revendication 8, 9 ou 10, dans lequel la longueur du côté parallèle de la section trapézoïdale, dont la longueur diminue sur la longueur de la rainure (2), est de 85% à 95% à une extrémité de la rainure (2), de préférence de 90% à 95% et de manière plus préférée de 92% à 94% de sa longueur à l'autre extrémité de la rainure (2).
  12. Elément de construction avec une rainure (2) selon la revendication 8, 9, 10 ou 11, comprenant deux parties et au moins une liaison rainure-languette des parties avec une languette (11) selon l'une des revendications 1 à 7, dans lequel chaque languette (11) est de forme complémentaire à la rainure (2) qui le reçoit.
EP21718069.4A 2020-04-02 2021-04-06 Liaison languette-rainure Active EP4127347B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020109273.3A DE102020109273A1 (de) 2020-04-02 2020-04-02 Nut-Feder-Verbindung
PCT/EP2021/058932 WO2021198531A1 (fr) 2020-04-02 2021-04-06 Liaison languette-rainure

Publications (3)

Publication Number Publication Date
EP4127347A1 EP4127347A1 (fr) 2023-02-08
EP4127347C0 EP4127347C0 (fr) 2024-02-21
EP4127347B1 true EP4127347B1 (fr) 2024-02-21

Family

ID=75478026

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21718069.4A Active EP4127347B1 (fr) 2020-04-02 2021-04-06 Liaison languette-rainure

Country Status (3)

Country Link
EP (1) EP4127347B1 (fr)
DE (1) DE102020109273A1 (fr)
WO (1) WO2021198531A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL30547C (nl) * 1931-03-24 1933-08-15 Duchateau Joseph Charles Hubert Zwaluwstaartvormige verbinding van twee delen
DE1093073B (de) * 1954-06-14 1960-11-17 Jannes Hogeboom Formstein mit profilierten Stossflaechen
US3090086A (en) 1958-07-07 1963-05-21 Fata Bernard Tapered dove-tail joints
GB1087401A (en) * 1963-07-03 1967-10-18 Beta Aluminium Products Ltd Improvements in or relating to structural joints
FR1427575A (fr) * 1965-04-03 1966-02-04 Dispositif d'assemblage pour éléments constitutifs de meubles tels que panneaux ainsi que les meubles ou éléments de meubles pourvus de ce dispositif
AT348729B (de) 1976-10-14 1979-02-26 Berger Werner Verbindungsorgan fuer mindestens zwei platten- elemente, mit zwei kupplungsgliedern
DE2646432C2 (de) 1976-10-14 1985-08-01 John J. Albuquerque N.Mex. Johnson IV Verbindung eines Balkens mit einem Stützbalken
US5664793A (en) * 1996-02-21 1997-09-09 Engibarov; Eddy Quick-change chuck jaws
DE102014006621B4 (de) 2014-05-08 2018-12-20 Daniel Neubauer Leim- und metallfreies Vollholzflächenelement
US20170268226A1 (en) * 2016-03-15 2017-09-21 Pompeo Graniglia Modular interlocking blocks

Also Published As

Publication number Publication date
EP4127347C0 (fr) 2024-02-21
WO2021198531A1 (fr) 2021-10-07
DE102020109273A1 (de) 2021-10-07
EP4127347A1 (fr) 2023-02-08

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