EP0398785A1 - Connecting element for pieces of wood - Google Patents

Connecting element for pieces of wood Download PDF

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Publication number
EP0398785A1
EP0398785A1 EP19900401227 EP90401227A EP0398785A1 EP 0398785 A1 EP0398785 A1 EP 0398785A1 EP 19900401227 EP19900401227 EP 19900401227 EP 90401227 A EP90401227 A EP 90401227A EP 0398785 A1 EP0398785 A1 EP 0398785A1
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EP
European Patent Office
Prior art keywords
teeth
element according
directed
profile
wood
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
EP19900401227
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German (de)
French (fr)
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EP0398785B1 (en
Inventor
Christian Preziosa
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/48—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses
    • E04B1/49—Dowels, i.e. members adapted to penetrate the surfaces of two parts and to take the shear stresses with self-penetrating parts, e.g. claw dowels

Definitions

  • the present invention relates to an assembly element of two wooden parts.
  • This element which has teeth directed one on one side and the others on the opposite side, is characterized in that the teeth are trapezoidal, their small base adjoining the profile and their oblique leading edge.
  • the connecting element can have the shape of a U, being intended to assemble a first part in a groove of the other.
  • each side of the element may have teeth, some of which face inward and the others outward.
  • the bottom of the element may also have teeth turned one inward and the other outward.
  • the assembly element can also be constituted by a simple plate, in which case it is intended to assemble two parts arranged side by side.
  • the joining profile 1 is intended for assembling a piece of wood 2 in a groove 3 of a piece of wood 4.
  • Profile 1 has a U-section and its wings 1 a and 1 b have teeth 5 a and 5 b cut and folded the first inwards and the second outwards.
  • the teeth 5 a folded inward are provided in the vicinity of the bottom 1 c of the profile while the teeth 5 b folded outward are provided in the vicinity of the upper edge of the wings 1 a and 1 b ; these teeth are in the shape of a rectangular trapezoid, their small base being adjacent to the wing and their leading edge 6 a or 6 b oblique.
  • the force f1 exerted by a tooth 5 b on the part 4 corresponds to a reaction f2 in the opposite direction; this reaction is broken down into a force f3 directed in the direction of the free edge 6b and a force f4 perpendicular to the wing and directed towards the inside of the profile ( Figure 3); this force therefore tends to tighten the corresponding wing 1 a or 1 b on the part 2.
  • a reaction whose component perpendicular to the wing is directed towards the exterior; this force thus tends to clamp the profile against the wall of the groove 3.
  • the bottom 1 c of the profile may also include teeth 7 a and 7 b directed one towards the outside and the other towards the inside, as seen in Figure 4.
  • the profile 8 is reduced to a simple dish in which are cut teeth 9 a and 9 b folded one on one side and the other on the other.
  • teeth 9 a and 9 b are trapezoidal, their small base adjoining the profile and their leading edge 10 a or 10 b oblique.
  • the profile is introduced between two pieces of wood 11 and 12 and pressed between them. Under the effect of the thrust force F, the teeth 9 a and 9 b sink into the parts 11 and 12 at the same time as the profile 8 is tightened both against the part 11 and against the part 12.
  • the teeth 9 a and 9 b have their points directed in the same direction; but these points could also be directed in opposite directions, the teeth being offset in height, like the teeth 5 a and 5 b .
  • These same elements could then be used to assemble the two parts 1 and 2 of FIG. 1, an element being engaged between each face of the part 2 and the adjacent wall of the groove 3.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

Element (1) for assembling two pieces of wood (2, 3), which comprises sets of teeth (5a-5b or 9a-9b) which are directed with one set on one side and the other set on the opposite side. The sets of teeth (5a-5b or 9a-9b) are trapezoidal, their small base being adjacent to the profiled section (1) and their leading edge (6a, 6b) being oblique. <IMAGE>

Description

La présente invention a pour objet un élément d'assemblage de deux pièces en bois.The present invention relates to an assembly element of two wooden parts.

Cet élément qui comporte des dents dirigées les unes d'un côté et les autres du côté opposé, est caractérisé en ce que les dents sont trapézoïdales, leur petite base étant attenante au profilé et leur bord d'attaque oblique.This element which has teeth directed one on one side and the others on the opposite side, is characterized in that the teeth are trapezoidal, their small base adjoining the profile and their oblique leading edge.

L'élément d'assemblage peut avoir la forme d'un U, en étant destiné à assembler une première pièce dans une rainure de l'autre. Dans ce cas, chaque côté de l'élément peut comporter des dents dont certaines sont tournées vers l'intérieur et les autres vers l'extérieur. Le fond de l'élément peut également comporter des dents tournées les unes vers l'intérieur et les autres vers l'extérieur.The connecting element can have the shape of a U, being intended to assemble a first part in a groove of the other. In this case, each side of the element may have teeth, some of which face inward and the others outward. The bottom of the element may also have teeth turned one inward and the other outward.

L'élément d'assemblage peut également être constitué par un simple plat, auquel cas il est destiné à assembler deux pièces disposées côte à côte.The assembly element can also be constituted by a simple plate, in which case it is intended to assemble two parts arranged side by side.

On a décrit ci-après, à titre d'exemples non limitatifs, divers modes de réalisation de l'élément d'assemblage selon l'invention, avec référence aux dessins annexés dans lesquels

  • La Figure 1 est une vue en coupe montrant deux pièces de bois assemblées avec un premier mode de réalisation de l'élément;
  • La Figure 2 est une vue en élévation de l'élément d'assemblage de la Figure 1;
  • La Figure 3 est un schéma des forces exercées par une dent lors du pressage du profilé;
  • La Figure 4 est une vue en perspective d'un second mode de réalisation de l'élément d'assemblage;
  • La Figure 5 est une vue en coupe montrant deux pièces de bois assemblées avec un troisième mode de réalisation de l'élément.
Various embodiments of the assembly element according to the invention have been described below, by way of non-limiting examples, with reference to the appended drawings in which
  • Figure 1 is a sectional view showing two pieces of wood assembled with a first embodiment of the element;
  • Figure 2 is an elevational view of the assembly member of Figure 1;
  • Figure 3 is a diagram of the forces exerted by a tooth during the pressing of the profile;
  • Figure 4 is a perspective view of a second embodiment of the assembly element;
  • Figure 5 is a sectional view showing two pieces of wood assembled with a third embodiment of the element.

Tel qu'il est représenté aux Figures 1 et 2, le profilé d'assemblage 1 est destiné à l'assemblage d'une pièce de bois 2 dans une rainure 3 d'une pièce de bois 4.As shown in Figures 1 and 2, the joining profile 1 is intended for assembling a piece of wood 2 in a groove 3 of a piece of wood 4.

Le profilé 1 a une section en U et ses ailes 1a et 1b présentent des dents 5a et 5b découpées et repliées les premières vers l'intérieur et les secondes vers l'extérieur. Les dents 5a repliées vers l'intérieur sont prévues au voisinage du fond 1c du profilé alors que les dents 5b repliées vers l'extérieur sont ménagées au voisinage du bord supérieur des ailes 1a et 1b; ces dents sont en forme de trapèze rectangle, leur petite base étant attenante à l'aile et leur bord d'attaque 6a ou 6b oblique. Pour assembler les pièces 2 et 4 on engage partiellement le profilé 1 dans la rainure 3 de la pièce 4 et on engage partiellement la pièce 2 dans le profilé 1; on presse alors la pièce 2 dans la rainure 3, comme indiqué par la flèche F. A la force f1 exercée par une dent 5b sur la pièce 4 correspond une réaction f2 de sens contraire; cette réaction se décomposé en une force f3 dirigée dans le sens du bord libre 6b et une force f4 perpendiculaire à l'aile et dirigée vers l'intérieur du profilé (Figure 3); cette force tend donc à serrer l'aile correspondante 1a ou 1b sur la pièce 2. De même, à la force exercée par la pièce 2 sur une dent 5a correspond une réaction dont la composante perpendiculaire à l'aile est dirigée vers l'extérieur; cette force tend ainsi à serrer le profilé contre la paroi de la rainure 3. Il y a donc un auto-blocage de la pièce 2 dans la pièce 4.Profile 1 has a U-section and its wings 1 a and 1 b have teeth 5 a and 5 b cut and folded the first inwards and the second outwards. The teeth 5 a folded inward are provided in the vicinity of the bottom 1 c of the profile while the teeth 5 b folded outward are provided in the vicinity of the upper edge of the wings 1 a and 1 b ; these teeth are in the shape of a rectangular trapezoid, their small base being adjacent to the wing and their leading edge 6 a or 6 b oblique. To assemble the parts 2 and 4, the profile 1 is partially engaged in the groove 3 of the part 4 and the part 2 is partially engaged in the profile 1; the part 2 is then pressed in the groove 3, as indicated by the arrow F. The force f1 exerted by a tooth 5 b on the part 4 corresponds to a reaction f2 in the opposite direction; this reaction is broken down into a force f3 directed in the direction of the free edge 6b and a force f4 perpendicular to the wing and directed towards the inside of the profile (Figure 3); this force therefore tends to tighten the corresponding wing 1 a or 1 b on the part 2. Similarly, to the force exerted by the part 2 on a tooth 5 a corresponds a reaction whose component perpendicular to the wing is directed towards the exterior; this force thus tends to clamp the profile against the wall of the groove 3. There is therefore a self-locking of the part 2 in the part 4.

Le fond 1c du profilé peut également comporter des dents 7a et 7b dirigées les unes vers l'extérieur et les autres vers l'intérieur, comme on le voit à la Figure 4.The bottom 1 c of the profile may also include teeth 7 a and 7 b directed one towards the outside and the other towards the inside, as seen in Figure 4.

Dans le mode de réalisation de la Figure 5, le profilé 8 est réduit à un simple plat dans lequel sont découpées des dents 9a et 9b repliées les unes d'un côté et les autres de l'autre. Comme les dents 5a et 5b, les dents 9a et 9b sont trapézoïdales, leur petite base étant attenante au profilé et leur bord d'attaque 10a ou 10b oblique. Dans ce cas, le profilé est introduit entre deux pièces de bois 11 et 12 et pressé entre elles. Sous l'effet de l'effort de poussée F, les dents 9a et 9b s'enfoncent dans les pièces 11 et 12 en même temps que le profilé 8 est serré à la fois contre la pièce 11 et contre la pièce 12.In the embodiment of Figure 5, the profile 8 is reduced to a simple dish in which are cut teeth 9 a and 9 b folded one on one side and the other on the other. Like teeth 5 a and 5 b , teeth 9 a and 9 b are trapezoidal, their small base adjoining the profile and their leading edge 10 a or 10 b oblique. In this case, the profile is introduced between two pieces of wood 11 and 12 and pressed between them. Under the effect of the thrust force F, the teeth 9 a and 9 b sink into the parts 11 and 12 at the same time as the profile 8 is tightened both against the part 11 and against the part 12.

Il va de soi que la présente invention ne doit pas être considérée comme limitée aux divers modes de réalisation décrits et représentés, mais en couvre, au contraire, toutes les variantes. C'est ainsi que, dans le mode de réalisation de la Figure 5, les dents 9a et 9b ont leurs pointes dirigées dans le même sens; mais ces pointes pourraient également être dirigées dans des sens opposés, les dents étant décalées en hauteur, comme les dents 5a et 5b. On pourrait alors utiliser ces mêmes éléments pour assembler les deux pièces 1 et 2 de la Figure 1, un élément étant engagé entre chaque face de la pièce 2 et la paroi adjacente de la rainure 3.It goes without saying that the present invention should not be considered as limited to the various embodiments described and shown, but on the contrary covers all variants thereof. Thus, in the embodiment of Figure 5, the teeth 9 a and 9 b have their points directed in the same direction; but these points could also be directed in opposite directions, the teeth being offset in height, like the teeth 5 a and 5 b . These same elements could then be used to assemble the two parts 1 and 2 of FIG. 1, an element being engaged between each face of the part 2 and the adjacent wall of the groove 3.

Claims (8)

1. Elément d'assemblage de deux pièces en bois, qui comporte des dents ( 5a-5b ou 9a-9b) dirigées les unes d'un côté et les autres du côté opposé, caractérisé en ce que les dents sont trapézoïdales, leur petite base étant attenante au profilé et leur bord d'attaque oblique.1. Joining element of two wooden parts, which has teeth (5 a -5 b or 9 a -9 b ) directed one on one side and the others on the opposite side, characterized in that the teeth are trapezoidal, their small base adjoining the profile and their oblique leading edge. 2. Elément d'assemblage selon la revendication 1, caractérisé en ce que les dents sont en forme de trapèze rectangle.2. An assembly element according to claim 1, characterized in that the teeth are in the form of a rectangular trapezoid. 3. Elément d'assemblage selon la revendication 1 ou 2,
caractérisé en ce qu'il a la forme d'un U, les dents (5a et 5b) étant ménagées dans ses ailes (1a et 1b).3. assembly element according to claim 1 or 2,
characterized in that it has the shape of a U, the teeth (5 a and 5 b ) being formed in its wings (1 a and 1 b ). 4. Elément d'assemblage selon la revendication 3, caractérisé en ce que les dents (5b) dirigées vers l'extérieur de l'élément sont ménagées à proximité du bord extérieur des ailes (1a et 1b) alors que les dents (5a) dirigées vers l'intérieur sont ménagées au voisinage du fond (1c).4. Connecting element according to claim 3, characterized in that the teeth (5 b ) directed towards the outside of the element are formed near the outer edge of the wings (1 a and 1 b ) while the teeth (5 a ) directed inwards are formed in the vicinity of the bottom (1c). 5. Elément d'assemblage selon la revendication 3 ou 4,
caractérisé en ce que le fond (1c) de l'élément comporte des dents (7a et 7b) tournées les unes vers l'intérieur et les autres vers l'extérieur.5. Joining element according to claim 3 or 4,
characterized in that the bottom (1 c ) of the element has teeth (7 a and 7 b ) turned one inward and the other outward. 6. Elément d'assemblage selon la revendication 1 ou 2,
caractérisé en ce qu'il est constitué par un simple plat (8).6. Connecting element according to claim 1 or 2,
characterized in that it consists of a simple dish (8). 7. Elément d'assemblage selon la revendication 6,
caractérisé en ce que les dents (9a et 9b) ont leurs pointes dirigées dans le même sens.7. An assembly element according to claim 6,
characterized in that the teeth (9 a and 9 b ) have their points pointing in the same direction. 8. Elément d'assemblage selon la revendication 6,
caractérisé en ce que les dents (9a et 9b) ont leurs pointes dirigées en sens contraire et sont décalées en hauteur.8. An assembly element according to claim 6,
characterized in that the teeth (9 a and 9 b ) have their points directed in opposite directions and are offset in height.
EP19900401227 1989-05-17 1990-05-09 Connecting element for pieces of wood Expired - Lifetime EP0398785B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8906881 1989-05-17
FR8906881A FR2647164B1 (en) 1989-05-17 1989-05-17 WOOD PIECES ASSEMBLY ELEMENT

Publications (2)

Publication Number Publication Date
EP0398785A1 true EP0398785A1 (en) 1990-11-22
EP0398785B1 EP0398785B1 (en) 1992-12-23

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EP19900401227 Expired - Lifetime EP0398785B1 (en) 1989-05-17 1990-05-09 Connecting element for pieces of wood

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EP (1) EP0398785B1 (en)
DE (1) DE69000638T2 (en)
FR (1) FR2647164B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0527671A1 (en) * 1991-08-12 1993-02-17 Christian Preziosa Connecting element for pieces of wood

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3098871B1 (en) * 2019-07-16 2022-10-14 Christian Paul Victor Preziosa Improvement of a device for assembling wooden parts.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR390687A (en) * 1908-05-30 1908-10-12 Gustave Kuranda Staple intended to prevent wood from splitting
CH108643A (en) * 1924-02-09 1925-02-02 Ind Belieferungs Aktiengesells Clamp for pulling together and connecting timber and the like.
DE815280C (en) * 1939-06-03 1951-10-01 Internat Conitor Company As U-shaped insert made of sheet metal to join boards or rods that are connected with tongue and groove
US2715730A (en) * 1952-03-10 1955-08-23 E B Packard Co Inc Fastener inserting tool
DE1909820A1 (en) * 1969-02-27 1970-10-08 Herbert Lehmann Device for attaching a door lining to a door lining

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR390687A (en) * 1908-05-30 1908-10-12 Gustave Kuranda Staple intended to prevent wood from splitting
CH108643A (en) * 1924-02-09 1925-02-02 Ind Belieferungs Aktiengesells Clamp for pulling together and connecting timber and the like.
DE815280C (en) * 1939-06-03 1951-10-01 Internat Conitor Company As U-shaped insert made of sheet metal to join boards or rods that are connected with tongue and groove
US2715730A (en) * 1952-03-10 1955-08-23 E B Packard Co Inc Fastener inserting tool
DE1909820A1 (en) * 1969-02-27 1970-10-08 Herbert Lehmann Device for attaching a door lining to a door lining

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0527671A1 (en) * 1991-08-12 1993-02-17 Christian Preziosa Connecting element for pieces of wood

Also Published As

Publication number Publication date
FR2647164A1 (en) 1990-11-23
DE69000638D1 (en) 1993-02-04
FR2647164B1 (en) 1991-08-16
EP0398785B1 (en) 1992-12-23
DE69000638T2 (en) 1993-06-03

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