EP1391273A1 - Trestle and method of producing a trestle - Google Patents

Trestle and method of producing a trestle Download PDF

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Publication number
EP1391273A1
EP1391273A1 EP03291873A EP03291873A EP1391273A1 EP 1391273 A1 EP1391273 A1 EP 1391273A1 EP 03291873 A EP03291873 A EP 03291873A EP 03291873 A EP03291873 A EP 03291873A EP 1391273 A1 EP1391273 A1 EP 1391273A1
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EP
European Patent Office
Prior art keywords
trestle
frame
plate
leg
trestle according
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Granted
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EP03291873A
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German (de)
French (fr)
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EP1391273B1 (en
Inventor
Pascal Godeau
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P.G.M.
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P.G.M.
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/06—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby of trestle type

Definitions

  • the present invention relates to a method of manufacturing a trestle and the trestle obtained by the process.
  • the object of the invention is to propose a method for manufacturing trestle which is robust and which lasts well over time, and the trestle obtained by the process.
  • the method comprises a step of recovery of waste and its reprocessing to reform a woody material plate.
  • the method comprises a step immersion of each leg in an anti-humidity treatment.
  • Another object of the invention is to allow trestles to be produced robust, in an economical material obtained from wood products.
  • the trestle is cut in the mass a plate of material incorporating woody material, the trestle being consisting of two legs hinged together by at least one hinge and a compass device for limiting the opening angle of the legs, said leg hinge being attached to both legs, characterized in that each leg consists of at least one single piece frame extending over the lateral sides perpendicular to the sides articulated by feet.
  • the frame incorporates one or more sleepers formed in one piece with the frame.
  • angles formed by the sides of the reinforcement frame and cross members are rounded.
  • the minimum rounding radius is 10 mm.
  • the radius of the roundings is at the maximum 100 mm.
  • the plate is of a thickness included between 16 and 22 mm.
  • the width of the uprights of the frame, sleepers and rounding are determined based on resistance desired.
  • the uprights of the frame have a width of 60 mm, rounding a radius of 100 mm to obtain a resistance of minus 500 kilos with 22 mm thick plates.
  • each leg is formed of several adjacent frames each having one side merged with the adjacent frame.
  • the woody retaining plate is medium obtained from wood fibers mixed with a binder and compressed.
  • the woody retaining plate is in OSB obtained from large wood chips mixed with a binder and compressed.
  • the woody material plate is in chipboard obtained from fine crushed chips mixed with a binder and compressed.
  • the woody material plate is in plywood made of unrolled, crossed and glued sheets of wood between them.
  • Figure 1 shows a perspective view of a trestle made of two legs (1, 2) connected to each other by one of the sides said to be greater than using, for example, three hinges (31, 32, 33) fixed on the faces inner legs, the opening angle of the legs being limited by two compass (41, 42) connected to the vertical uprights (13, 23, 11, 21) opposite each of the legs.
  • Each leg (1, respectively 2) is made up a frame formed by two lower horizontal crosspieces (10, respectively 20), upper (12, 22) and left vertical uprights (11, 21), straight (13, 23 looking at the figure).
  • the vertical uprights are each extend downwards by feet (respectively 111, 131, 231, 211).
  • the upper crosspiece (12) can extend laterally towards the outside on each side of the vertical uprights (11, 13), likewise for the upper crosspiece (22) of the second leg (2). These extensions (121, 123, 221, 223) make it possible to increase the bearing surface on the trestle.
  • the frame can be reinforced with cross beams, for example at an angle (14, 24, Figure 1) connecting each opposite angle of a frame or horizontal (14, 24, Figure 2a) and the connection of these sleepers with the frame being done by rounded (R), as well as the corners of the frames being rounded.
  • the rounded can be replaced by cut sides to form angles where possible obtuse angles.
  • the frame can be reinforced by a horizontal crosspiece (not shown) roughly connecting the midpoints of the opposite lateral sides (11, 13) and respectively (23, 21), or by sleepers in various directions (Figures 12 and 14 for example).
  • each leg can be consisting of two adjacent frames (1a, 1b) joined together by one side common (13a, 13b).
  • Rounding can be between a minimum rounding of 10 mm. and a maximum rounding of 100 mm. and are determined by calculation for allow good resistance of the structure at the junction geometric between two directions meeting at an angle.
  • the thickness of the panel is also chosen according to the resistance wanted for the structure and, for example, for a width of the uprights of 60 mm. and rounds of 100 mm. cut from a 22mm panel. we obtain trestles which largely support loads greater than 500 kilos.
  • the panels are made either of plywood which we recall is made of unrolled, crossed and glued sheets of wood, or mediums made of wood fibers mixed with binder and compressed.
  • the panels can also consist of either agglomerates made of fine crushed chips, mixed with a binder and compressed, i.e. still OSB consisting of large wood chips mixed with a binder and compress.
  • Frame shapes can be varied and made up of shapes trapezoidal with rounded or shaped transverse uprights angular, as shown in figures 3 to 5. Some of the uprights horizontal can be provided with cutouts to lighten them, without however reducing the solidity of the lyre-shaped structure (Figure 6), by X shape (Figures 9 and 11), or letter ⁇ shape (Figure 10), or Z shape (Figure 13), or finally inverted U shape (Figure 15). In this last case the frame is open on one side and it is certain that such a trestle will bear lighter loads as the feet may step aside.
  • One of the advantages of the method according to the invention is to allow the production of frames with very different shapes from a plate of dense woody material, simply by removing from the matter to this plate.
  • the mechanical properties of the frames remain analogues for variant embodiments, for example those illustrated in Figures 3 to 5, made from the same type of plate.
  • the only cutting in the mass of the plate allows the production of two legs (1, 2) identical without additional operation.
  • the trestle can then be obtained simply after fixing hinges (31, 32, 33) and compass (41, 42) standard type to connect these two legs (1, 2).
  • Another advantage of the invention is to use a material woody that can be compacted with a high density, which allows the trestle to directly support loads of several hundred kilograms.

Abstract

The trestle is constituted from two legs (1,2) connected by their upper sides by hinges (31,32,33) fixed on the leg internal faces. The opening angle of the legs is limited by two compasses (41,42) connected to uprights (13,23,11,21) opposite each leg. Each leg is constituted from a frame formed from two lower (10,20) and upper (12,22) horizontal crosspieces. An independent claim is included for a trestle manufacturing method.

Description

La présente invention concerne un procédé de fabrication de tréteau et le tréteau obtenu par le procédé.The present invention relates to a method of manufacturing a trestle and the trestle obtained by the process.

Il est connu de fabriquer des tréteaux en assemblant des bouts de bois par des procédés à tenon mortaise de façon à constituer un cadre formant une jambe du tréteau et se prolongeant vers le bas par des pieds. La partie supérieure du cadre d'une jambe étant liée à la partie supérieure du cadre d'une autre jambe par une articulation et l'écartement angulaire des deux jambes étant limité par un compas fixé vers le bas des deux jambes. Dans ce type de tréteau fabriqué à partir de bois, les liaisons des morceaux de bois assemblés se détériorent dans le temps sous la charge et la déformation provoquée par la charge et petit à petit le tréteau n'est plus utilisable.It is known to make trestles by assembling pieces of wood by mortise tenon processes so as to constitute a frame forming a leg of the trestle and extending downward by feet. The upper part of the frame of a leg being linked to the upper part of the frame of another leg by a joint and the angular spacing of two legs being limited by a compass fixed down the two legs. In this type of trestle made from wood, the connections of the pieces of assembled wood deteriorate over time under load and deformation caused by the load and gradually the trestle is no longer usable.

Le but de l'invention est de proposer un procédé de fabrication de tréteau qui soit robuste et qui tienne bien dans le temps, et le tréteau obtenu par le procédé.The object of the invention is to propose a method for manufacturing trestle which is robust and which lasts well over time, and the trestle obtained by the process.

Ce but est atteint par le fait que le procédé de fabrication de tréteau dans la masse d'une plaque de matériau incorporant de la matière ligneuse comporte :

  • une étape de découpe des formes et de perçage dans une plaque de dimension suffisante pour sortir par la découpe chaque jambe formée d'au moins un cadre monobloc et constituant la moitié du tréteau en formant à chaque angle du cadre de la découpe un arrondi ou un pan coupé ;
  • une étape de perçage des points de fixation des charnières et une étape de défonçage des points d'insertion des compas ;
  • une étape de montage de l'articulation des compas.
This object is achieved by the fact that the method of manufacturing a trestle in the mass of a plate of material incorporating woody material comprises:
  • a step of cutting the shapes and drilling in a plate of sufficient size to leave by cutting each leg formed of at least one monobloc frame and constituting half of the trestle by forming at each angle of the frame of the cut a rounded or a cutaway;
  • a step of drilling the hinge fixing points and a step of knocking out the compass insertion points;
  • a step of assembling the articulation of the compasses.

Selon une autre particularité, le procédé comporte une étape de récupération des déchets et de retraitement de ceux-ci pour reformer une plaque de matière ligneuse. According to another particularity, the method comprises a step of recovery of waste and its reprocessing to reform a woody material plate.

Selon une autre particularité, le procédé comporte une étape d'immersion de chaque jambe dans un traitement anti-humidité.According to another particularity, the method comprises a step immersion of each leg in an anti-humidity treatment.

Un autre but de l'invention est de permettre de réaliser des tréteaux robustes, dans une matière économique obtenue à partir de produits ligneux.Another object of the invention is to allow trestles to be produced robust, in an economical material obtained from wood products.

Ce but est atteint par le fait que le tréteau est taillé dans la masse d'une plaque de matériau incorporant de la matière ligneuse, le tréteau étant constitué de deux jambes articulées entre elles par au moins une charnière et un dispositif à compas pour limiter l'angle d'ouverture des jambes, ladite charnière étant fixée aux deux jambes, caractérisé en ce que chaque jambe est constituée d'au moins un cadre d'une seule pièce se prolongeant sur les côtés latéraux perpendiculaires aux côtés articulés par des pieds.This goal is achieved by the fact that the trestle is cut in the mass a plate of material incorporating woody material, the trestle being consisting of two legs hinged together by at least one hinge and a compass device for limiting the opening angle of the legs, said leg hinge being attached to both legs, characterized in that each leg consists of at least one single piece frame extending over the lateral sides perpendicular to the sides articulated by feet.

Selon une autre particularité, le cadre incorpore une ou plusieurs traverses formées d'une seule pièce avec le cadre.In another feature, the frame incorporates one or more sleepers formed in one piece with the frame.

Selon une autre particularité, les angles formés par les côtés du cadre et les traverses de renfort sont arrondis.According to another particular feature, the angles formed by the sides of the reinforcement frame and cross members are rounded.

Selon une autre particularité, le rayon des arrondis minimum est de 10 mm.According to another particular feature, the minimum rounding radius is 10 mm.

Selon une autre particularité, le rayon des arrondis est au maximum de 100 mm.According to another particularity, the radius of the roundings is at the maximum 100 mm.

Selon une autre particularité, la plaque est d'une épaisseur comprise entre 16 et 22 mm.According to another particular feature, the plate is of a thickness included between 16 and 22 mm.

Selon une autre particularité, la largeur des montants du cadre, des traverses et les arrondis sont déterminés en fonction de la résistance souhaitée.According to another particular feature, the width of the uprights of the frame, sleepers and rounding are determined based on resistance desired.

Selon une autre particularité, les montants du cadre ont une largeur de 60 mm, les arrondis un rayon de 100 mm pour obtenir une résistance d'au moins 500 kilos avec des plaques d'une épaisseur de 22 mm.According to another particularity, the uprights of the frame have a width of 60 mm, rounding a radius of 100 mm to obtain a resistance of minus 500 kilos with 22 mm thick plates.

Selon une autre particularité, chaque jambe est formée de plusieurs cadres adjacents ayant chacun un côté confondu avec le cadre adjacent.According to another feature, each leg is formed of several adjacent frames each having one side merged with the adjacent frame.

Selon une autre particularité, la plaque de maintien ligneuse est du medium obtenu à partir de fibres de bois mélangées avec un liant et comprimées. According to another particular feature, the woody retaining plate is medium obtained from wood fibers mixed with a binder and compressed.

Selon une autre particularité, la plaque de maintien ligneuse est en OSB obtenue à partir de gros copeaux de bois mélangés avec un liant et compressés.According to another particularity, the woody retaining plate is in OSB obtained from large wood chips mixed with a binder and compressed.

Selon une autre particularité, la plaque de matière ligneuse est en aggloméré obtenu à partir de copeaux broyés fins mélangés à un liant et compressés.In another feature, the woody material plate is in chipboard obtained from fine crushed chips mixed with a binder and compressed.

Selon une autre particularité, la plaque de matière ligneuse est en contreplaqué constitué de feuilles de bois déroulées, croisées et collées entre elles.In another feature, the woody material plate is in plywood made of unrolled, crossed and glued sheets of wood between them.

D'autres particularités et avantages de la présente invention apparaítront plus clairement à la lecture de la description ci-après faite en référence aux dessins annexés dans lesquels :

  • la figure 1 représente une vue en perspective d'un exemple de réalisation d'un tréteau selon l'invention ;
  • la figure 2a représente une vue en perspective d'un deuxième mode de réalisation d'un tréteau selon l'invention ;
  • la figure 2b représente une vue de dessus d'un troisième mode de réalisation d'un tréteau selon l'invention ;
  • les figures 3 à 17 représentent diverses formes de réalisation des jambes constituant chacune des moitiés d'un tréteau.
Other features and advantages of the present invention will appear more clearly on reading the description below made with reference to the accompanying drawings in which:
  • Figure 1 shows a perspective view of an embodiment of a trestle according to the invention;
  • FIG. 2a represents a perspective view of a second embodiment of a trestle according to the invention;
  • FIG. 2b represents a top view of a third embodiment of a trestle according to the invention;
  • Figures 3 to 17 show various embodiments of the legs constituting each of the halves of a trestle.

L'invention va à présente être décrite en liaison avec les figures 1 à 17.The invention will now be described in conjunction with Figures 1 to 17.

La figure 1 représente une vue en perspective d'un tréteau constitué de deux jambes (1, 2) reliées entre elles par un des côtés dits supérieurs à l'aide de, par exemple, trois charnières (31, 32, 33) fixées sur les faces intérieures des jambes, l'angle d'ouverture des jambes étant limité par deux compas (41, 42) reliés aux montants verticaux (13, 23, 11, 21) en vis-à-vis de chacune des jambes. Chaque jambe (1, respectivement 2) est constituée d'un cadre formé de deux traverses horizontales inférieures (10, respectivement 20), supérieures (12, 22) et de montants verticaux gauches (11, 21), droits (13, 23 en regardant la figure). Les montants verticaux se prolongent chacun vers le bas par des pieds (respectivement 111, 131, 231, 211). La traverse supérieure (12) peut se prolonger latéralement vers l'extérieur de chaque côté des montants verticaux (11, 13), de même pour la traverse supérieure (22) de la deuxième jambe (2). Ces prolongements (121, 123, 221, 223) permettent d'augmenter la surface d'appui sur le tréteau. Le cadre peut être renforcé par des traverses par exemple en biais (14, 24, figure 1) reliant chaque angle opposé d'un cadre ou horizontales (14, 24, figure 2a) et la liaison de ces traverses avec le cadre se faisant par des arrondis (R), de même que les angles des cadres étant arrondis. Les arrondis peuvent être remplacés par des pans coupés de façon à former aux angles ou cela est possible des angles obtus.Figure 1 shows a perspective view of a trestle made of two legs (1, 2) connected to each other by one of the sides said to be greater than using, for example, three hinges (31, 32, 33) fixed on the faces inner legs, the opening angle of the legs being limited by two compass (41, 42) connected to the vertical uprights (13, 23, 11, 21) opposite each of the legs. Each leg (1, respectively 2) is made up a frame formed by two lower horizontal crosspieces (10, respectively 20), upper (12, 22) and left vertical uprights (11, 21), straight (13, 23 looking at the figure). The vertical uprights are each extend downwards by feet (respectively 111, 131, 231, 211). The upper crosspiece (12) can extend laterally towards the outside on each side of the vertical uprights (11, 13), likewise for the upper crosspiece (22) of the second leg (2). These extensions (121, 123, 221, 223) make it possible to increase the bearing surface on the trestle. The frame can be reinforced with cross beams, for example at an angle (14, 24, Figure 1) connecting each opposite angle of a frame or horizontal (14, 24, Figure 2a) and the connection of these sleepers with the frame being done by rounded (R), as well as the corners of the frames being rounded. The rounded can be replaced by cut sides to form angles where possible obtuse angles.

Dans une autre forme de réalisation, le cadre peut être renforcé par une traverse horizontale (non représentée) reliant à peu près les milieux des côtés latéraux opposés (11, 13) et respectivement (23, 21), ou encore par des traverses selon des directions diverses (figures 12 et 14 par exemple).In another embodiment, the frame can be reinforced by a horizontal crosspiece (not shown) roughly connecting the midpoints of the opposite lateral sides (11, 13) and respectively (23, 21), or by sleepers in various directions (Figures 12 and 14 for example).

Dans une autre forme de réalisation, chaque jambe peut être constituée de deux cadres adjacents (1a, 1b) solidaires entre eux par un côté commun (13a, 13b).In another embodiment, each leg can be consisting of two adjacent frames (1a, 1b) joined together by one side common (13a, 13b).

Sur la figure 2a on peut voir les logements (212, 232, 112, 132;) des compas formés sur la surface intérieure de chacun des montants verticaux disposés à l'extrémité de chacune des jambes et sur la figure 2b les perçages (122) destinés à recevoir les moyens de fixation des charnières.In Figure 2a we can see the housing (212, 232, 112, 132;) of the compasses formed on the inner surface of each of the vertical uprights arranged at the end of each of the legs and in Figure 2b the holes (122) intended to receive the means for fixing the hinges.

Les arrondis peuvent être compris entre un arrondi minimum de 10 mm. et un arrondi maximal de 100 mm. et sont déterminés par calcul pour permettre une bonne résistance de la structure au niveau de la jonction géométrique entre deux directions se rejoignant en formant un angle. L'épaisseur du panneau est également choisie en fonction de la résistance voulue pour la structure et, par exemple, pour une largeur des montants de 60 mm. et des arrondis de 100 mm. découpés dans un panneau de 22 mm. on obtient des tréteaux qui supportent largement des charges supérieures à 500 kilos.Rounding can be between a minimum rounding of 10 mm. and a maximum rounding of 100 mm. and are determined by calculation for allow good resistance of the structure at the junction geometric between two directions meeting at an angle. The thickness of the panel is also chosen according to the resistance wanted for the structure and, for example, for a width of the uprights of 60 mm. and rounds of 100 mm. cut from a 22mm panel. we obtain trestles which largely support loads greater than 500 kilos.

Les panneaux sont constitués soit de contreplaqué qui rappelons-le est formé de feuilles de bois déroulées, croisées et collées entre elles, soit de mediums constitués de fibres de bois mélangées à liant et comprimées. Les panneaux peuvent être également constitués soit d'agglomérés constitués de copeaux broyés fin, mélangés à un liant et compressés, soit encore OSB constitué de gros copeaux de bois mélangés à un liant et compressé.The panels are made either of plywood which we recall is made of unrolled, crossed and glued sheets of wood, or mediums made of wood fibers mixed with binder and compressed. The panels can also consist of either agglomerates made of fine crushed chips, mixed with a binder and compressed, i.e. still OSB consisting of large wood chips mixed with a binder and compress.

Les formes de cadres peuvent être variées et constituées de formes trapézoïdales avec des montants transversaux arrondis ou à forme angulaire, comme représentées sur les figures 3 à 5. Certains des montants horizontaux peuvent être pourvus de découpes destinées à les alléger, sans pour autant réduire la solidité de la structure, en forme de lyre (figure 6), en forme de X (figures 9 et 11), ou en forme de lettre π (figure 10), ou encore en forme de Z (figure 13), ou enfin forme de U inversé (figure 15). Dans ce dernier cas le cadre est ouvert sur un côté et il certain qu'un tel tréteau supportera des charges moins lourdes étant donné que les pieds risquent de s'écarter.Frame shapes can be varied and made up of shapes trapezoidal with rounded or shaped transverse uprights angular, as shown in figures 3 to 5. Some of the uprights horizontal can be provided with cutouts to lighten them, without however reducing the solidity of the lyre-shaped structure (Figure 6), by X shape (Figures 9 and 11), or letter π shape (Figure 10), or Z shape (Figure 13), or finally inverted U shape (Figure 15). In this last case the frame is open on one side and it is certain that such a trestle will bear lighter loads as the feet may step aside.

Un des avantages du procédé selon l'invention est de permettre la réalisation de cadres ayant des formes très différentes à partir d'une plaque de matériau à base de matière ligneuse dense, simplement en retirant de la matière à cette plaque. Les propriétés mécaniques des cadres restent analogues pour des variantes de réalisation, par exemple celles illustrées aux figures 3 à 5, fabriquées à partir d'un même type de plaque. Le seul taillage dans la masse de la plaque permet l'obtention de deux jambes (1, 2) identiques sans opération supplémentaire. Le tréteau peut alors être obtenu simplement après fixation de charnières (31, 32, 33) et de compas (41, 42) de type standard pour relier ces deux jambes (1, 2).One of the advantages of the method according to the invention is to allow the production of frames with very different shapes from a plate of dense woody material, simply by removing from the matter to this plate. The mechanical properties of the frames remain analogues for variant embodiments, for example those illustrated in Figures 3 to 5, made from the same type of plate. The only cutting in the mass of the plate allows the production of two legs (1, 2) identical without additional operation. The trestle can then be obtained simply after fixing hinges (31, 32, 33) and compass (41, 42) standard type to connect these two legs (1, 2).

Un autre des avantages de l'invention est d'utiliser une matière ligneuse que l'on peut compacter avec une haute densité, ce qui permet au tréteau de supporter directement des charges de plusieurs centaines de kilogrammes.Another advantage of the invention is to use a material woody that can be compacted with a high density, which allows the trestle to directly support loads of several hundred kilograms.

Il doit être évident pour les personnes versées dans l'art que la présente invention permet des modes de réalisation sous de nombreuses autres formes spécifiques sans l'éloigner du domaine d'application de l'invention comme revendiqué. Par conséquent, les présents modes de réalisation doivent être considérés à titre d'illustration mais peuvent être modifiés dans le domaine défini par la portée des revendications jointes.It should be obvious to those skilled in the art that the present invention allows embodiments under many other specific forms without departing from the scope of the invention as claimed. Therefore, the present modes of realization must be considered as illustration but can be modified in the field defined by the scope of the appended claims.

Claims (16)

Procédé de fabrication de tréteau dans la masse d'une plaque de matériau incorporant de la matière ligneuse comporte une étape de découpe des formes et de perçage dans une plaque de dimension suffisante pour sortir par la découpe chaque jambe (1, 2) formée d'au moins un cadre monobloc et constituant la moitié du tréteau en formant à chaque angle du cadre de la découpe un arrondi ou un pan coupé ; une étape de perçage des points de fixation des charnières (31, 32, 33) et une étape de défonçage des points d'insertion des compas (41, 42) ; une étape de montage de l'articulation des compas (41, 42). Method for manufacturing a trestle in the mass of a plate of material incorporating woody material comprises a step of cutting the shapes and drilling in a plate of sufficient size to exit by cutting each leg (1, 2) formed of at least one monobloc frame and constituting half of the trestle by forming at each angle of the frame of the cut a round or cut; a step of drilling the hinge fixing points (31, 32, 33) and a step of knocking out the compass insertion points (41, 42); a step of mounting the articulation of the compasses (41, 42). Procédé selon la revendication 1 ou 2, caractérisé en ce qu'il comporte une étape de récupération des déchets et de retraitement de ceux-ci pour reformer une plaque de matière ligneuse.Method according to claim 1 or 2, characterized in that it includes a step of recovering the waste and reprocessing it to reform a plate of woody material. Procédé selon la revendication 1, caractérisé en ce qu'il comporte une étape d'immersion de chaque jambe (1, 2) dans un traitement anti-humidité.Method according to claim 1, characterized in that it comprises a step of immersing each leg (1, 2) in an anti-humidity treatment. Tréteau taillé dans la masse d'une plaque de matériau incorporant de la matière ligneuse, le tréteau étant constitué de deux jambes (1, 2) articulées entre elles par au moins une charnière (31, 32, 33) et un dispositif à compas (41, 42) pour limiter l'angle d'ouverture des jambes (1, 2), ladite charnière (31, 32, 33) étant fixée aux deux jambes (1, 2), caractérisé en ce que chaque jambe est constituée d'au moins un cadre d'une seule pièce se prolongeant sur les côtés latéraux perpendiculaires aux côtés articulés par des pieds (111, 211, 131, 231).Trestle cut from the mass of a plate of material incorporating woody material, the trestle being made up of two legs (1, 2) articulated together by at least one hinge (31, 32, 33) and a compass device ( 41, 42) to limit the opening angle of the legs (1, 2), said hinge (31, 32, 33) being fixed to the two legs (1, 2), characterized in that each leg consists of at least one frame in one piece extending on the lateral sides perpendicular to the sides articulated by feet (111, 211, 131, 231). Tréteau selon la revendication 4, caractérisé en ce que le cadre incorpore une ou plusieurs traverses (14, 24) formées d'une seule pièce avec le cadre. Trestle according to claim 4, characterized in that the frame incorporates one or more crosspieces (14, 24) formed in one piece with the frame. Tréteau selon les revendications 4 ou 5, caractérisé en ce que les angles formés par les côtés du cadre et les traverses de renfort sont arrondis.Trestle according to claims 4 or 5, characterized in that the angles formed by the sides of the frame and the reinforcing crosspieces are rounded. Tréteau selon les revendications 4 à 6, caractérisé en ce que le rayon des arrondis minimum est de 10 mm.Trestle according to Claims 4 to 6, characterized in that the minimum rounding radius is 10 mm. Tréteau selon les revendications 4 à 6, caractérisé en ce que le rayon des arrondis est au maximum de 100 mm.Trestle according to Claims 4 to 6, characterized in that the radius of the rounding is at most 100 mm. Tréteau selon la revendication 4, caractérisé en ce que la plaque est d'une épaisseur comprise entre 16 et 22 mm.Trestle according to claim 4, characterized in that the plate is between 16 and 22 mm thick. Tréteau selon les revendications 4 à 6, caractérisé en ce que la largeur des montants du cadre, des traverses et les arrondis sont déterminés en fonction de la résistance souhaitée.Trestle according to claims 4 to 6, characterized in that the width of the uprights of the frame, crosspieces and rounding are determined according to the desired resistance. Tréteau selon les revendications 4, 5, 6 et 10, caractérisé en ce que les montants du cadre ont une largeur de 60 mm, les arrondis un rayon de 100 mm pour obtenir une résistance d'au moins 500 kilos avec des plaques d'une épaisseur de 22 mm.Trestle according to claims 4, 5, 6 and 10, characterized in that the uprights of the frame have a width of 60 mm, the rounded radius of 100 mm to obtain a resistance of at least 500 kilos with plates of a thickness of 22 mm. Tréteau selon la revendication 4, caractérisé en ce que chaque jambe est formée de plusieurs cadres adjacents ayant chacun un côté confondu avec le cadre adjacent.Trestle according to claim 4, characterized in that each leg is formed from several adjacent frames each having one side merging with the adjacent frame. Tréteau selon les revendications 4 et 9, caractérisé en ce que la plaque de maintien ligneuse est du medium obtenu à partir de fibres de bois mélangées avec un liant et comprimées.Trestle according to claims 4 and 9, characterized in that the woody holding plate is of medium obtained from wood fibers mixed with a binder and compressed. Tréteau selon les revendications 4 et 9, caractérisé en ce que la plaque de maintien ligneuse est en OSB obtenue à partir de gros copeaux de bois mélangés avec un liant et compressés.Trestle according to claims 4 and 9, characterized in that the woody holding plate is made of OSB obtained from large wood chips mixed with a binder and compressed. Tréteau selon les revendications 4 et 9, caractérisé en ce que la plaque de matière ligneuse est en aggloméré obtenu à partir de copeaux broyés fins mélangés à un liant et compressés. Trestle according to claims 4 and 9, characterized in that the woody material plate is made of agglomerate obtained from fine crushed chips mixed with a binder and compressed. Tréteau selon les revendications 4 et 9, caractérisé en ce que la plaque de matière ligneuse est en contreplaqué constitué de feuilles de bois déroulées, croisées et collées entre elles.Trestle according to claims 4 and 9, characterized in that the woody material plate is made of plywood consisting of unrolled, crossed and glued sheets of wood.
EP03291873A 2002-07-29 2003-07-29 Trestle and method of producing a trestle Expired - Lifetime EP1391273B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0209695A FR2842757B1 (en) 2002-07-29 2002-07-29 PROCESS FOR PRODUCING TREEAU AND TREE
FR0209695 2002-07-29

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EP1391273A1 true EP1391273A1 (en) 2004-02-25
EP1391273B1 EP1391273B1 (en) 2006-12-27

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EP03291873A Expired - Lifetime EP1391273B1 (en) 2002-07-29 2003-07-29 Trestle and method of producing a trestle

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EP (1) EP1391273B1 (en)
AT (1) ATE349301T1 (en)
DE (1) DE60310654D1 (en)
FR (1) FR2842757B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109648533A (en) * 2018-08-21 2019-04-19 重庆长安工业(集团)有限责任公司 Double gun turret laying rack with energization debugging function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1604254A (en) * 1923-07-30 1926-10-26 Warwick G Bate Collapsible trestle
US4113056A (en) * 1977-01-28 1978-09-12 Delorenzo Mario M Foldable saw horse
US4756385A (en) * 1987-07-30 1988-07-12 Deitz Robert L Fold together saw benches
US6131320A (en) * 1997-10-14 2000-10-17 American Allsafe Company Floor sign
US6142256A (en) * 1998-11-09 2000-11-07 II Henry E. Dirk Folding sawhorse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1604254A (en) * 1923-07-30 1926-10-26 Warwick G Bate Collapsible trestle
US4113056A (en) * 1977-01-28 1978-09-12 Delorenzo Mario M Foldable saw horse
US4756385A (en) * 1987-07-30 1988-07-12 Deitz Robert L Fold together saw benches
US6131320A (en) * 1997-10-14 2000-10-17 American Allsafe Company Floor sign
US6142256A (en) * 1998-11-09 2000-11-07 II Henry E. Dirk Folding sawhorse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109648533A (en) * 2018-08-21 2019-04-19 重庆长安工业(集团)有限责任公司 Double gun turret laying rack with energization debugging function

Also Published As

Publication number Publication date
DE60310654D1 (en) 2007-02-08
FR2842757A1 (en) 2004-01-30
ATE349301T1 (en) 2007-01-15
EP1391273B1 (en) 2006-12-27
FR2842757B1 (en) 2005-02-11

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