EP1391273B1 - Trestle and method of producing a trestle - Google Patents

Trestle and method of producing a trestle Download PDF

Info

Publication number
EP1391273B1
EP1391273B1 EP03291873A EP03291873A EP1391273B1 EP 1391273 B1 EP1391273 B1 EP 1391273B1 EP 03291873 A EP03291873 A EP 03291873A EP 03291873 A EP03291873 A EP 03291873A EP 1391273 B1 EP1391273 B1 EP 1391273B1
Authority
EP
European Patent Office
Prior art keywords
trestle
frame
sheet
wood
legs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03291873A
Other languages
German (de)
French (fr)
Other versions
EP1391273A1 (en
Inventor
Pascal Godeau
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.)
P.G.M.
Original Assignee
P.G.M.
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 P.G.M. filed Critical P.G.M.
Publication of EP1391273A1 publication Critical patent/EP1391273A1/en
Application granted granted Critical
Publication of EP1391273B1 publication Critical patent/EP1391273B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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 method.
  • the object of the invention is to provide a trestle making method which is robust and which holds well in time, and the trestle obtained by the method.
  • the method comprises a waste recovery step and reprocessing them to reform a woody material plate.
  • the method comprises a step of immersing each leg in an anti-humidity treatment.
  • Another object of the invention is to make it possible to produce robust trestles in an economic material obtained from wood products.
  • the trestle is cut into the mass of a plate of material incorporating woody material, the trestle consisting of two legs hinged together by at least one hinge and a compass device to limit the angle of opening of the legs, said hinge being attached to both legs, 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.
  • the frame incorporates one or more sleepers formed integrally with the frame.
  • angles formed by the sides of the frame and the reinforcing rails are rounded.
  • the radius of rounding minimum is 10 mm.
  • the radius of rounding is at most 100 mm.
  • the plate is of a thickness between 16 and 22 mm.
  • the width of the frame uprights, sleepers and roundings are determined according to the desired resistance.
  • the amounts of the frame have a width of 60 mm, rounded a radius of 100 mm to obtain a strength of at least 500 kilos with plates with a thickness of 22 mm.
  • each leg is formed of several adjacent frames each having a side confused with the adjacent frame.
  • the woody support plate is medium obtained from wood fibers mixed with a binder and compressed.
  • the woody support plate is made of OSB obtained from large wood chips mixed with a binder and compressed.
  • the woody material plate is in agglomerated obtained from fine crushed chips mixed with a binder and compressed.
  • the woody material plate is plywood consisting of wood sheets unrolled, crossed and glued together.
  • FIG. 1 represents a perspective view of a trestle consisting of two legs (1, 2) interconnected by one of the so-called upper sides by means of, for example, three hinges (31, 32, 33) fixed on the inner faces of the legs, the opening angle of the legs being limited by two compasses (41, 42) connected to the vertical uprights (13, 23, 11, 21) vis-à-vis each of the legs.
  • Each leg (1, respectively 2) consists of a frame formed of two lower horizontal struts (10, respectively 20), upper (12, 22) and left vertical uprights (11, 21), straight (13, 23 in looking at the figure).
  • the vertical uprights each extend downwards by feet (respectively 111, 131, 231, 211).
  • the upper cross member (12) can extend laterally outwardly on each side of the uprights (11, 13), as well as the upper cross member (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 may be reinforced by means of for example angled cross members (14, 24, FIG. 1) connecting each opposite corner of a frame or horizontals (14, 24, FIG. 2a) and the connection of these cross members with the frame being made by roundings (R), as well as the angles of the frames being rounded.
  • the roundings can be replaced by cut edges so as to form at the corners where possible obtuse angles.
  • the frame may be reinforced by a horizontal cross member (not shown) approximately connecting the media of the opposite lateral sides (11, 13) and respectively (23, 21), or by cross members according to various directions ( Figures 12 and 14 for example).
  • each leg may consist of two adjacent frames (1a, 1b) integral with each other by a common side (13a, 13b).
  • FIG 2a can be seen the housings (212, 232, 112, 132;) of the compass formed on the inner surface of each of the vertical uprights disposed at the end of each of the legs and in Figure 2b the holes (122). intended to receive the fastening means of the hinges.
  • the roundings can be between a rounding of at least 10 mm. and a maximum rounding of 100 mm. and are determined by calculation to allow good strength of the structure at the geometric junction between two directions joining at an angle.
  • the thickness of the panel is also chosen according to the desired strength for the structure and, for example, for a width of the uprights of 60 mm. and rounds of 100 mm. cut into a 22 mm panel. Trestles are obtained which largely support loads exceeding 500 kilos.
  • the panels consist either of plywood which remember it is formed of wooden sheets unrolled, crossed and glued together, or mediums made of wood fibers mixed with binder and compressed.
  • the panels may also consist of agglomerates consisting of fine crushed chips, mixed with a binder and compressed, or OSB consisting of large wood chips mixed with a binder and compressed.
  • the frame shapes may be varied and consist of trapezoidal shapes with rounded or angularly shaped transverse uprights, as shown in FIGS. 3 to 5. Some of the horizontal uprights may be provided with cutouts for lightening them, without reducing the solidity of the structure, in the form of a lyre (FIG. 6), in the shape of X (FIGS. 9 and 11), or in the form of a letter ⁇ (FIG. 10), or in the form of Z (FIG. 13), or finally in form U reversed ( Figure 15). In the latter case the frame is open on one side and it is certain that such a trestle bear lighter loads since the feet may depart.
  • One of the advantages of the method according to the invention is to allow the realization of frames having very different shapes from a plate of material based on dense ligneous material, simply by removing material from this plate.
  • the mechanical properties of the frames are similar for alternative 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 makes it possible to obtain 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) of standard type to connect these two legs (1, 2).
  • Another advantage of the invention is to use a woody material that can be compacted with a high density, which allows the trestle to directly support loads of several hundred kilograms.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Fertilizers (AREA)
  • Aerials With Secondary Devices (AREA)
  • Tents Or Canopies (AREA)
  • Ventilation (AREA)

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 method.

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 manufacture trestles by assembling pieces of wood by mortise tenon methods so as to form a frame forming a leg of the trestle and extending downwards by feet. The upper part of the frame of one leg being linked to the upper part of the frame of another leg by a hinge and the angular spacing of the two legs being limited by a compass fixed downwards of the two legs. In this type of trestle made from wood, the connections of the assembled pieces of wood deteriorate in time under the load and the deformation caused by the load and little by little the trestle is no longer usable.

Il est également connu, par le document US-A-4113056, des tréteaux pliables métalliques constitués par l'assemblage de jambes rigides.It is also known, from US-A-4113056, foldable metal trestles constituted by the assembly of rigid legs.

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 provide a trestle making method which is robust and which holds well in time, and the trestle obtained by the method.

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 material plate incorporating woody material comprises:
  • a step of cutting the shapes and drilling in a plate of sufficient size to exit by cutting each leg formed of at least one monobloc frame and constituting half of the trestle forming at each corner of the frame of the cut a rounded or a cutaway;
  • a step of drilling the attachment points of the hinges and a step of cutting off the insertion points of the compasses;
  • a stage of assembly of 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.In another feature, the method comprises a waste recovery step and reprocessing them 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 feature, the method comprises a step of immersing 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 make it possible to produce robust trestles in an economic 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 object is achieved by the fact that the trestle is cut into the mass of a plate of material incorporating woody material, the trestle consisting of two legs hinged together by at least one hinge and a compass device to limit the angle of opening of the legs, said hinge being attached to both legs, 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.

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 integrally 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 feature, the angles formed by the sides of the frame and the reinforcing rails are rounded.

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

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

Selon une autre particularité, la plaque est d'une épaisseur comprise entre 16 et 22 mm.According to another feature, the plate is of a thickness 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 particularity, the width of the frame uprights, sleepers and roundings are determined according to the desired resistance.

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 feature, the amounts of the frame have a width of 60 mm, rounded a radius of 100 mm to obtain a strength of at least 500 kilos with plates with a thickness of 22 mm.

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 a side confused 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 feature, the woody support 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.In another feature, the woody support plate is made of 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.According to another feature, the woody material plate is in agglomerated 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.According to another feature, the woody material plate is plywood consisting of wood sheets unrolled, crossed and glued together.

D'autres particularités et avantages de la présente invention apparaîtront 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 following description made with reference to the accompanying drawings in which:
  • FIG. 1 represents a perspective view of an exemplary embodiment of a trestle according to the invention;
  • Figure 2a shows a perspective view of a second embodiment of a trestle according to the invention;
  • FIG. 2b represents a view from above of a third embodiment of a trestle according to the invention;
  • Figures 3 to 17 show various embodiments of the legs constituting each half of a trestle.

L'invention va à présente être décrite en liaison avec les figures 1 à 17.The invention will now be described with reference to FIGS. 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.FIG. 1 represents a perspective view of a trestle consisting of two legs (1, 2) interconnected by one of the so-called upper sides by means of, for example, three hinges (31, 32, 33) fixed on the inner faces of the legs, the opening angle of the legs being limited by two compasses (41, 42) connected to the vertical uprights (13, 23, 11, 21) vis-à-vis each of the legs. Each leg (1, respectively 2) consists of a frame formed of two lower horizontal struts (10, respectively 20), upper (12, 22) and left vertical uprights (11, 21), straight (13, 23 in looking at the figure). The vertical uprights each extend downwards by feet (respectively 111, 131, 231, 211). The upper cross member (12) can extend laterally outwardly on each side of the uprights (11, 13), as well as the upper cross member (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 may be reinforced by means of for example angled cross members (14, 24, FIG. 1) connecting each opposite corner of a frame or horizontals (14, 24, FIG. 2a) and the connection of these cross members with the frame being made by roundings (R), as well as the angles of the frames being rounded. The roundings can be replaced by cut edges so as to form at the corners 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 may be reinforced by a horizontal cross member (not shown) approximately connecting the media of the opposite lateral sides (11, 13) and respectively (23, 21), or by cross members according to 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 may consist of two adjacent frames (1a, 1b) integral with each other by a common side (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 can be seen the housings (212, 232, 112, 132;) of the compass formed on the inner surface of each of the vertical uprights disposed at the end of each of the legs and in Figure 2b the holes (122). intended to receive the fastening means of 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.The roundings can be between a rounding of at least 10 mm. and a maximum rounding of 100 mm. and are determined by calculation to allow good strength of the structure at the geometric junction between two directions joining at an angle. The thickness of the panel is also chosen according to the desired strength for the structure and, for example, for a width of the uprights of 60 mm. and rounds of 100 mm. cut into a 22 mm panel. Trestles are obtained which largely support loads exceeding 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 consist either of plywood which remember it is formed of wooden sheets unrolled, crossed and glued together, or mediums made of wood fibers mixed with binder and compressed. The panels may also consist of agglomerates consisting of fine crushed chips, mixed with a binder and compressed, or OSB consisting of large wood chips mixed with a binder and compressed.

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.The frame shapes may be varied and consist of trapezoidal shapes with rounded or angularly shaped transverse uprights, as shown in FIGS. 3 to 5. Some of the horizontal uprights may be provided with cutouts for lightening them, without reducing the solidity of the structure, in the form of a lyre (FIG. 6), in the shape of X (FIGS. 9 and 11), or in the form of a letter π (FIG. 10), or in the form of Z (FIG. 13), or finally in form U reversed (Figure 15). In the latter case the frame is open on one side and it is certain that such a trestle bear lighter loads since the feet may depart.

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 realization of frames having very different shapes from a plate of material based on dense ligneous material, simply by removing material from this plate. The mechanical properties of the frames are similar for alternative 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 makes it possible to obtain 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) of 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 woody material that can be compacted with a high density, which allows the trestle to directly support loads of several hundred kilograms.

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.The present embodiments should be considered by way of illustration but may be modified in the field defined by the scope of the appended claims.

Claims (16)

  1. Method of producing a trestle from a sheet of material incorporating wood matter includes:
    - a step involving cutting out shapes and boring a sufficiently large sheet to remove by cutting each leg (1, 2) formed from at least one one-piece frame and constituting half of the trestle by forming at each angle of the frame of the incision a rounded portion or a cut-off region;
    - a step involving boring points for fixing hinges (31, 32, 33) and a step involving routing of the points for insertion of compasses (41, 42);
    - a step involving mounting the joint of the compasses.
  2. Method according to claim 1, characterised in that it includes a step involving the recovery of waste and reprocessing thereof in order to form a sheet of wood matter.
  3. Method according to claim 1, characterised in that it includes a step in which each leg is subjected to an anti-moisture treatment.
  4. Trestle cut from a sheet of material incorporating wood matter, the trestle consisting of two legs (1, 2) mutually articulated by at least one hinge (31, 32, 33) and a compass device for limiting the angle of opening of the legs (1, 2), said hinge (31, 32, 33) being fixed to the two legs (1, 2), characterised in that each leg (1, 2), formed from the sheet of material incorporating said wood matter, consists of at least one one-piece frame extending over the lateral sides perpendicular to the sides articulated by feet (111, 211, 131, 231), each of the two legs comprising fixing points formed by boring in order to fix said hinge (31, 32, 33).
  5. Trestle according to claim 4, characterised in that the frame incorporates one or more cross members (14, 24) formed in one piece with the frame.
  6. Trestle according to either claim 4 or claim 5, characterised in that the angles formed by the sides of the frame and the reinforcing cross members are rounded.
  7. Trestle according to claims 4 to 6, characterised in that the minimum radius of the rounded portions is 10 mm.
  8. Trestle according to claims 4 to 6, characterised in that the radius of the rounded portions is at most 100 mm.
  9. Trestle according to claim 4, characterised in that the sheet has a thickness of between 16 and 22 mm.
  10. Trestle according to claims 4 to 6, characterised in that the widths of the frame uprights, the cross members and the rounded portions are determined as a function of the desired strength.
  11. Trestle according to claims 4, 5, 6 and 10, characterised in that the frame uprights have a width of 60 mm and the rounded portions a radius of 100 mm in order to obtain a strength able to withstand at least 500 kilos with sheets having a thickness of 22 mm.
  12. Trestle according to claim 4, characterised in that each leg is formed from a plurality of adjacent frames, each having a combined side with the adjacent frame.
  13. Trestle according to claims 4 and 9, characterised in that the sheet of wood matter consists of material obtained from wood fibres mixed with a binder and compressed.
  14. Trestle according to claims 4 and 9, characterised in that the sheet of wood matter consists of OSB obtained from coarse wood chips mixed with a binder and compressed.
  15. Trestle according to claims 4 and 9, characterised in that the sheet of wood matter consists of chipboard obtained from finely ground wood chips mixed with a binder and compressed.
  16. Trestle according to claims 4 and 9, characterised in that the sheet of wood matter consists of plywood consisting of layers of wood which are rolled out, crossed and glued together.
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

Publications (2)

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

Family

ID=30011601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03291873A Expired - Lifetime EP1391273B1 (en) 2002-07-29 2003-07-29 Trestle and method of producing a trestle

Country Status (4)

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

Families Citing this family (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

Family Cites Families (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

Also Published As

Publication number Publication date
EP1391273A1 (en) 2004-02-25
DE60310654D1 (en) 2007-02-08
FR2842757B1 (en) 2005-02-11
FR2842757A1 (en) 2004-01-30
ATE349301T1 (en) 2007-01-15

Similar Documents

Publication Publication Date Title
EP0174257B1 (en) System of wooden elements for modular furniture
EP1674003A1 (en) Bed base structure and method for fabricating the same
FR2583802A1 (en) Assembly of timber elements intended for the construction of buildings
EP1391273B1 (en) Trestle and method of producing a trestle
EP0123614B1 (en) Filing device with inclined dividers
EP0504533B1 (en) Modular, structural office system
EP0259223A1 (en) Wooden construction panel, especially for buildings, structures and furniture
EP0152145A1 (en) Panel for the modular construction of a building
FR2801066A1 (en) FIRE RESISTANT SANDWICH PANEL
EP3762621B1 (en) Table particularly for playing table tennis
EP0013649A1 (en) Folding furniture
FR2788202A3 (en) Endless add-on shelving system
FR2672917A1 (en) Construction device for the production of flat surfaces and/or of grating stairs
FR2634259A1 (en) ASSEMBLY SYSTEM FOR PRODUCING VARIOUS OBJECTS OF THE FURNITURE TYPE IN PARTICULAR
FR3140252A1 (en) Furniture module
WO1999017638A1 (en) Furniture piece made up of constructible elements
FR2573824A3 (en) Device for producing furniture to be assembled by the user
EP0511136B1 (en) Improvement in seats
FR2773568A1 (en) Assembly bracket for frame members
FR2575136A1 (en) Element for making pallets for handling loads
FR2668524A1 (en) Method for manufacture of formworks, and formworks for the erection of walls having a curvilinear or angular profile
BE1006113A3 (en) Assembled wall
WO2010023404A2 (en) Modular construction assembly
FR2705412A1 (en) Device for joining two sheet metal components together
EP4260837A1 (en) Coffin with composite structure

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20040817

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20041215

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20061227

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REF Corresponds to:

Ref document number: 60310654

Country of ref document: DE

Date of ref document: 20070208

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070327

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070327

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070407

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070528

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20061227

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

26N No opposition filed

Effective date: 20070928

BERE Be: lapsed

Owner name: P.G.M.

Effective date: 20070731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070731

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070731

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070328

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070628

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061227

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140724

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150731