EP2174756A1 - Pair of foldable trestles - Google Patents

Pair of foldable trestles Download PDF

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Publication number
EP2174756A1
EP2174756A1 EP08017592A EP08017592A EP2174756A1 EP 2174756 A1 EP2174756 A1 EP 2174756A1 EP 08017592 A EP08017592 A EP 08017592A EP 08017592 A EP08017592 A EP 08017592A EP 2174756 A1 EP2174756 A1 EP 2174756A1
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EP
European Patent Office
Prior art keywords
feet
pair
joints
folding
crossbar
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Granted
Application number
EP08017592A
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German (de)
French (fr)
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EP2174756B1 (en
Inventor
Bertrand Cupif
Teddy Sannier
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Macc SA
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Macc SA
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Priority to PT08017592T priority Critical patent/PT2174756E/en
Priority to DE602008006734T priority patent/DE602008006734D1/en
Priority to ES08017592T priority patent/ES2365364T3/en
Priority to EP08017592A priority patent/EP2174756B1/en
Priority to AT08017592T priority patent/ATE507940T1/en
Publication of EP2174756A1 publication Critical patent/EP2174756A1/en
Application granted granted Critical
Publication of EP2174756B1 publication Critical patent/EP2174756B1/en
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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 object of the present invention is to provide improvements to various models of trestle-type trestle-type trestle supports or supports, as described in the MACC patent. FR No. 87 09601 so as to simplify the deployment, make it automatic and catch up with lock games. This invention also makes it possible to assemble two independent trestles in a very safe and automatic manner.
  • the first improvement lies in the locking device of the joints that support the four feet and which fold inside the cross U which forms the horizontal part of the trestle. This arrangement makes it possible, during the deployment of the feet, to automatically lock the joints while catching the operating clearances when the joint reaches the stop when the feet are then deployed and creates an irreversible immobilization.
  • the second improvement lies in the shape, the offset of one relative to the other of the two joints for superimposing the folded feet inside the cross.
  • Another improvement relates to one of the two joints having a cut shape allowing the joint to rotate and come into locking abutment without performing specific welding.
  • Another improvement relates to the binding of the feet in the two joints which, thanks to the position of their axis of rotation, allows the two feet to be superimposed completely when they are folded; the set of two feet fits perfectly in the extension of the joint to obtain an ideal folded compactness.
  • Another improvement lies in the beveled shape of the upper end of the feet which, housed in the joint, provides a very solid stop without play when the feet are deployed and the bridge loaded.
  • Another improvement relates to the opening of these four feet which is made by a spring through the feet and is sized to retract completely into the feet when they fold and to avoid a thickening.
  • the last improvement relates to the fastening system of the two sleepers together side by side by means of the combination of two forms cooperating at one end of the sleepers and a nipple penetrating into the second cross at the other end; the whole being locked very safely by the use one of the two joint locks to which a hook has been added.
  • the bridge is composed of a crossbar (1), two joints (2) (3), two pairs of feet (4) (4 ') and (5) (5').
  • the two joints (2) (3) pivot about the axes of rotation (7) (7 ') perpendicular to the crossbar (1).
  • the pairs of legs (4) (4 ') and (5) (5') pivot about the axes (9) (9 ') integral perpendicular to the joints (2) (3).
  • the figures 2 and 3 also show the difference between the two joints (2) (3).
  • one of the articulations here the articulation (2), has its axis of rotation (7). ) offset from the horizontal plane formed by the junction of the two feet (4) (4 ') but remains aligned with the second axis of rotation (7') to ensure locking.
  • the wall of the joint (2) in contact with the latch (6) in the open state is at the same horizontal level as the same wall of the joint (3).
  • the user can deploy the hinge (3) by pressing on the pin (22) integral with the hinge (3).
  • the two joints (2) (3) and the pairs of legs (4) (4 ') and (5) (5') pivot about the axes of rotation (7) (7 ') by their own weight and come into stop respectively on (17) (17 ').
  • Locking is then performed by locks (6) (6 ') which were housed and immobilized under the joints (2) (3) in the folded position and which are released during the rotation of the joints (2) (3).
  • This rotation of the latches (6) (6 ') around the axes (12) (12') is caused by the two springs (19) (19 ') which bear on the inner and upper side of the cross member (1). ) and push the two locks (6) (6 ').
  • FIGS. 2 and 3 show that, to achieve the stop end of the stroke of the joint (2), a cutout (16) is cut with the center of rotation, the axis of rotation (7). The end of this cutout (16) comes to rest on the stop (17) in the unfolded position.
  • the deployment of the feet (4) (4 ') and (5) (5') is around the axes (9) (9 ') integral with the joints (2) (3).
  • the joints (2) (3) unfold outside the crossbar (1)
  • the feet (4) (4 ') (5) (5') are deployed by pivoting about the axes (9) (9 ') under the action of the springs (8) (8 ').
  • the final position is obtained by the upper ends (25) (25 ') beveled feet (4) (4') and (5) (5 ') are supported on the inner wall of the joints (2) (3) .
  • the figure 7 shows the sleepers (1) (1 ') assembled side by side.
  • the figures 8 , 9 10 and 11 describe the ends of the sleepers (1) (1 ').
  • the user inserts the cutout (15) of the crossbar (1 ') in the channel (14) of the crossbar (1). After having assembled in this way these two ends of the crosspieces (1) (1 ') and after lifting the hook (11) of the latch (6'), the user locks the other two ends of said crosspieces (1) (1). ') by engaging the stud (13) of the axle (12') of the latch (6 ') of the crossbar (1) in a housing (18) of the crossbar (1).
  • the latch (6 ') is raised so that the hook (11) connected to this latch does not interfere with the two cross members (1) (1').
  • the latch (6 ') is released and pushed by the spring (19') which will cause the hook (11), will immobilize the two sleepers preventing the stud (13) out of the housing (18) .
  • the pair of sleepers thus becomes solidary.
  • the figures 1 , 7 , 12 and 13 allow to show the automatic release system of the joints (2) (3).
  • a stud (22) integral with a spring (26) and sliding in the articulation (3) comes into a cutout (23) of the crossbar (1).
  • the user maintains the horizontal cross member open side to the ground and then presses on the pin (22) which sinks into the joint (3) and allows the latter to rotate around the axis of rotation (7 ') by gravity.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The pair has a crossbar (1) whose end includes a gutter and a bolt, where the other end of the crossbar includes a cut (23) and another bolt. Another crossbar includes an end with a cut in which the gutter is inserted, and another end with a pin integrated to an axle of the latter crossbar and inserted in a housing of the former crossbar. The former bolt is released to integrate the pair and to facilitate transport of the pair. Each crossbar includes two articulations (2, 3) in which beveled upper ends of feet (4, 4', 5, 5') are housed, where the articulations are articulated.

Description

La présente invention a pour but d'apporter des perfectionnements à différents modèles de chevalets ou supports de structure de type tréteaux à pieds pliants, comme décrit dans le brevet MACC FR n° 87 09601 de façon à simplifier le déploiement, le rendre automatique et de rattraper les jeux de verrouillage. Cette invention permet aussi d'assurer un assemblage de deux chevalets indépendants de façon très sûre et automatique.The object of the present invention is to provide improvements to various models of trestle-type trestle-type trestle supports or supports, as described in the MACC patent. FR No. 87 09601 so as to simplify the deployment, make it automatic and catch up with lock games. This invention also makes it possible to assemble two independent trestles in a very safe and automatic manner.

La première amélioration réside dans le dispositif de verrouillage des articulations qui supportent les quatre pieds et qui se replient à l'intérieur de la traverse en U qui forme la partie horizontale du tréteau. Cette disposition permet, lors du déploiement des pieds, de verrouiller automatiquement les articulations tout en rattrapant les jeux de fonctionnement lorsque l'articulation arrive en butée quand les pieds sont alors déployés et crée une immobilisation irréversible.The first improvement lies in the locking device of the joints that support the four feet and which fold inside the cross U which forms the horizontal part of the trestle. This arrangement makes it possible, during the deployment of the feet, to automatically lock the joints while catching the operating clearances when the joint reaches the stop when the feet are then deployed and creates an irreversible immobilization.

La seconde amélioration réside dans la forme, le décalage de l'une par rapport à l'autre des deux articulations permettant de superposer les pieds repliés à l'intérieur de la traverse.The second improvement lies in the shape, the offset of one relative to the other of the two joints for superimposing the folded feet inside the cross.

Une autre amélioration concerne une des deux articulations présentant une forme découpée permettant à l'articulation de tourner et venir en butée de verrouillage sans réalisation de soudure spécifique.Another improvement relates to one of the two joints having a cut shape allowing the joint to rotate and come into locking abutment without performing specific welding.

Une autre amélioration concerne la liaison des pieds dans les deux articulations qui, grâce à la position de leur axe de rotation, permet aux deux pieds de se superposer complètement quand ils sont repliés ; l'ensemble des deux pieds s'inscrivant parfaitement dans le prolongement de l'articulation afin d'obtenir une compacité repliée idéale.Another improvement relates to the binding of the feet in the two joints which, thanks to the position of their axis of rotation, allows the two feet to be superimposed completely when they are folded; the set of two feet fits perfectly in the extension of the joint to obtain an ideal folded compactness.

Une autre amélioration réside dans la forme en biseau de l'extrémité supérieure des pieds qui, logés dans l'articulation, permet d'obtenir une butée très solide et sans jeu quand les pieds sont déployés et le chevalet chargé.Another improvement lies in the beveled shape of the upper end of the feet which, housed in the joint, provides a very solid stop without play when the feet are deployed and the bridge loaded.

Une autre amélioration concerne l'ouverture de ces quatre pieds qui est réalisée par un ressort traversant les pieds et qui est dimensionné pour s'escamoter complètement dans les pieds lorsque ceux-ci se replient et afin d'éviter ainsi une surépaisseur.Another improvement relates to the opening of these four feet which is made by a spring through the feet and is sized to retract completely into the feet when they fold and to avoid a thickening.

La dernière amélioration concerne le système de solidarisation des deux traverses ensemble côte à côte au moyen de la combinaison de deux formes coopérantes à une extrémité des traverses et un téton pénétrant dans la seconde traverse à l'autre extrémité ; l'ensemble étant verrouillé de façon très sûre par l'utilisation d'un des deux verrous d'articulations auquel on a ajouté un crochet.The last improvement relates to the fastening system of the two sleepers together side by side by means of the combination of two forms cooperating at one end of the sleepers and a nipple penetrating into the second cross at the other end; the whole being locked very safely by the use one of the two joint locks to which a hook has been added.

L'invention est exposée ci-après plus en détail à l'aide de dessins représentant seulement un mode d'exécution.

  • La figure 1 représente en perspective le chevalet en position dépliée.
  • La figure 2 représente le chevalet en position repliée
  • La figure 3 représente en perspective l'une des deux articulations en position dépliée
  • La figure 4 représente en perspective l'autre articulation en position dépliée
  • La figure 5 représente les pieds en position dépliée
  • La figure 6 représente les pieds en position superposée
  • La figure 7 représente la paire de traverses assemblées
  • La figure 8 représente la première extrémité des traverses avant l'assemblage.
  • La figure 9 représente la première extrémité des traverses après l'assemblage
  • La figure 10 représente la seconde extrémité des traverses avant l'assemblage.
  • La figure 11 représente la deuxième extrémité des traverses après l'assemblage
  • La figure 12 représente une vue latérale des chevalets assemblés afin de montrer le système de libération des chevalets.
  • La figure 13 représente une vue de l'intérieur d'un chevalet replié.
The invention is explained below in more detail using drawings representing only one embodiment.
  • The figure 1 represents in perspective the easel in unfolded position.
  • The figure 2 represents the easel in the folded position
  • The figure 3 represents in perspective one of the two joints in the unfolded position
  • The figure 4 represents in perspective the other articulation in unfolded position
  • The figure 5 represents the feet in the unfolded position
  • The figure 6 represents the feet in superimposed position
  • The figure 7 represents the pair of ties assembled
  • The figure 8 represents the first end of the sleepers before assembly.
  • The figure 9 represents the first end of the sleepers after assembly
  • The figure 10 represents the second end of the sleepers before assembly.
  • The figure 11 is the second end of the sleepers after assembly
  • The figure 12 represents a side view of the easels assembled to show the easel release system.
  • The figure 13 represents a view of the interior of a folded easel.

Selon la figure 1, le chevalet est composé d'une traverse (1), de deux articulations (2) (3), de deux paires de pieds (4) (4') et (5) (5'). Les deux articulations (2) (3) pivotent autour des axes de rotation (7) (7') perpendiculaires à la traverse (1). Les paires de pieds (4) (4') et (5) (5') pivotent autour des axes (9) (9') solidaires perpendiculairement aux articulations (2) (3).According to figure 1 , the bridge is composed of a crossbar (1), two joints (2) (3), two pairs of feet (4) (4 ') and (5) (5'). The two joints (2) (3) pivot about the axes of rotation (7) (7 ') perpendicular to the crossbar (1). The pairs of legs (4) (4 ') and (5) (5') pivot about the axes (9) (9 ') integral perpendicular to the joints (2) (3).

Selon la figure 2, les articulations (2) (3) et les pieds (4) (4') et (5) (5') sont totalement escamotés dans le profil de la traverse (1). L'ensemble forme un profil rectangulaire et compactAccording to figure 2 , the joints (2) (3) and the feet (4) (4 ') and (5) (5') are completely retracted in the profile of the crossbar (1). The whole forms a rectangular and compact profile

Les figures 2 et 3 montrent aussi la différence entre les deux articulations (2) (3). Pour permettre une compacité accrue et la superposition des deux paires de pieds (4) (4') et (5) (5'), l'une des articulations, ici l'articulation (2), a son axe de rotation (7) désaxé par rapport au plan horizontal formé par la jonction des deux pieds (4) (4') mais reste aligné avec le second axe de rotation (7') pour garantir un verrouillage. Pour cela, la paroi de l'articulation (2) en contact avec le verrou (6) lors de l'état ouvert se situe au même niveau horizontal que la même paroi de l'articulation (3).The figures 2 and 3 also show the difference between the two joints (2) (3). To allow increased compactness and the superposition of the two pairs of legs (4) (4 ') and (5) (5'), one of the articulations, here the articulation (2), has its axis of rotation (7). ) offset from the horizontal plane formed by the junction of the two feet (4) (4 ') but remains aligned with the second axis of rotation (7') to ensure locking. For this, the wall of the joint (2) in contact with the latch (6) in the open state is at the same horizontal level as the same wall of the joint (3).

Selon les figures 1, 2, 3 et 4, l'utilisateur peut déployer l'articulation (3) en appuyant sur le téton (22) solidaire de l'articulation (3). Les deux articulations (2) (3) et les paires de pieds (4) (4') et (5) (5') pivotent autour des axes de rotation (7) (7') grâce à leur propre poids et viennent en butée respectivement sur (17) (17'). Le verrouillage se réalise alors par des verrous (6) (6') qui étaient logés et immobilisés sous les articulations (2) (3) en position repliée et qui sont libérés lors de la rotation des articulations (2) (3). Ce mouvement de rotation des verrous (6) (6') autour des axes (12) (12') est provoqué par les deux ressorts (19) (19') qui prennent appui sur la face intérieure et supérieure de la traverse (1) et poussent les deux verrous (6) (6'). Les points d'appuis (27) (27') des verrous (6) (6') sur les articulations (2) (3) s'alignent sur les droites horizontales symbolisées à leurs extrémités par les butées (17) (17') et les axes (12) (12'). Ces alignements confèrent aux articulations un verrouillage irréversible. Pour replier les ensembles articulations (2) (3) avec leurs pieds (4) (4') et (5) (5'), il faut alors appuyer sur les verrous (6) (6') au niveau de leurs extrémités respectives (24) (24') pour faire pivoter ces verrous (6) (6') autour de leurs axes (12) (12'). Cela permet alors la libération des articulations et leur repliage dans la traverse (1).According to figures 1 , 2 , 3 and 4 , the user can deploy the hinge (3) by pressing on the pin (22) integral with the hinge (3). The two joints (2) (3) and the pairs of legs (4) (4 ') and (5) (5') pivot about the axes of rotation (7) (7 ') by their own weight and come into stop respectively on (17) (17 '). Locking is then performed by locks (6) (6 ') which were housed and immobilized under the joints (2) (3) in the folded position and which are released during the rotation of the joints (2) (3). This rotation of the latches (6) (6 ') around the axes (12) (12') is caused by the two springs (19) (19 ') which bear on the inner and upper side of the cross member (1). ) and push the two locks (6) (6 '). The bearing points (27) (27 ') of the bolts (6) (6') on the joints (2) (3) are aligned with the horizontal lines symbolized at their ends by the stops (17) (17 ' ) and the axes (12) (12 '). These alignments give the joints irreversible locking. To fold the hinge assemblies (2) (3) with their feet (4) (4 ') and (5) (5'), it is then necessary to press the latches (6) (6 ') at their respective ends. (24) (24 ') for pivoting these latches (6) (6') about their axes (12) (12 '). This then allows the release of the joints and their folding in the crossbar (1).

Les figures 2 et 3 montrent que, pour réaliser la butée en fin de course de l'articulation (2), une découpe (16) est découpée avec pour centre, l'axe de rotation (7). La fin de cette découpe (16) vient s'appuyer sur la butée (17) en position dépliée.The figures 2 and 3 show that, to achieve the stop end of the stroke of the joint (2), a cutout (16) is cut with the center of rotation, the axis of rotation (7). The end of this cutout (16) comes to rest on the stop (17) in the unfolded position.

Selon les figures 5 et 6, le déploiement des pieds (4) (4') et (5) (5') se fait autour des axes (9) (9') solidaires des articulations (2) (3). Quand les articulations (2) (3) se déploient en dehors de la traverse (1), les pieds (4) (4') (5) (5') se déploient en pivotant autour des axes (9) (9') sous l'action des ressorts (8) (8'). La position finale est obtenue par les extrémités supérieures (25) (25') biseautée des pieds (4) (4') et (5) (5') viennent s'appuyer sur la paroi intérieure des articulations (2) (3). Lors du repliage, les ressorts (8) (8') s'escamotent complètement dans les pieds (4) (4') et (5) (5') permettant d'obtenir une superposition de ces derniers qui forment alors une section (20) s'inscrivant dans la section (21) définie par les articulations (2) (3). Ceci confère une compacité permettant de replier les articulations (2) (3) et les pieds (4) (4') et (5) (5') dans le profil de la traverse (1).According to Figures 5 and 6 , the deployment of the feet (4) (4 ') and (5) (5') is around the axes (9) (9 ') integral with the joints (2) (3). When the joints (2) (3) unfold outside the crossbar (1), the feet (4) (4 ') (5) (5') are deployed by pivoting about the axes (9) (9 ') under the action of the springs (8) (8 '). The final position is obtained by the upper ends (25) (25 ') beveled feet (4) (4') and (5) (5 ') are supported on the inner wall of the joints (2) (3) . During folding, the springs (8) (8 ') retract completely into the feet (4) (4') and (5) (5 ') making it possible to obtain a superposition of the latter which then form a section ( 20) falling within the section (21) defined by the articulations (2) (3). This provides a compactness for folding the joints (2) (3) and the feet (4) (4 ') and (5) (5') in the profile of the crossbar (1).

La figure 7 montre les traverses (1) (1') assemblées côte à côte.The figure 7 shows the sleepers (1) (1 ') assembled side by side.

Les figures 8, 9 10 et 11 décrivent les extrémités des traverses (1) (1'). Pour réaliser l'assemblage, l'utilisateur insère la découpe (15) de la traverse (1') dans la gouttière (14) de la traverse (1). Après avoir assemblé de la sorte ces deux extrémités des traverses (1) (1') et après avoir soulevé le crochet (11) du verrou (6'), l'utilisateur verrouille les deux autres extrémités des dites traverses (1) (1') en engageant le téton (13) de l'axe (12') du verrou (6') de la traverse (1) dans un logement (18) de la traverse (1).The figures 8 , 9 10 and 11 describe the ends of the sleepers (1) (1 '). To achieve the assembly, the user inserts the cutout (15) of the crossbar (1 ') in the channel (14) of the crossbar (1). After having assembled in this way these two ends of the crosspieces (1) (1 ') and after lifting the hook (11) of the latch (6'), the user locks the other two ends of said crosspieces (1) (1). ') by engaging the stud (13) of the axle (12') of the latch (6 ') of the crossbar (1) in a housing (18) of the crossbar (1).

Selon les figures 2, 10 et 11, le verrou (6') est relevé pour que le crochet (11) lié à ce verrou ne gène pas l'adossement des deux traverses (1) (1'). Quand elles arrivent en contact, le verrou (6') est relâché et poussé par le ressort (19') qui va entraîner le crochet (11), va immobiliser les deux traverses empêchant le téton (13) de ressortir du logement (18). La paire de traverses devient donc solidaire.According to figures 2 , 10 and 11 , the latch (6 ') is raised so that the hook (11) connected to this latch does not interfere with the two cross members (1) (1'). When they come into contact, the latch (6 ') is released and pushed by the spring (19') which will cause the hook (11), will immobilize the two sleepers preventing the stud (13) out of the housing (18) . The pair of sleepers thus becomes solidary.

Les figures 1, 7, 12 et 13 permettent de montrer le système de libération automatique des articulations (2) (3). Un téton (22) solidaire d'un ressort (26) et coulissant dans l'articulation (3) vient dans une découpe (23) de la traverse (1). Pour libérer les pieds, l'utilisateur maintient la traverse horizontale côté ouvert vers le sol puis appuie sur le téton (22) qui s'enfonce dans l'articulation (3) et permet à cette dernière de tourner autour de l'axe de rotation (7') par la gravité.The figures 1 , 7 , 12 and 13 allow to show the automatic release system of the joints (2) (3). A stud (22) integral with a spring (26) and sliding in the articulation (3) comes into a cutout (23) of the crossbar (1). To release the feet, the user maintains the horizontal cross member open side to the ground and then presses on the pin (22) which sinks into the joint (3) and allows the latter to rotate around the axis of rotation (7 ') by gravity.

Claims (8)

Paire de chevalets pliants composée de deux traverses (1) (1') en forme de U qui peuvent être appariées pour former un ensemble compact et dans lesquelles sont repliés les pieds des chevalets pliants et dont l'une est munie d'une poignée pour faciliter son transport, caractérisée en ce que la traverse (1) comporte à l'une de ses extrémités une gouttière (14), un verrou (6) et à l'autre extrémité une découpe (23), un verrou (6') pourvu d'un crochet (11) et la traverse (1') comporte à l'une de ses extrémités une découpe (15) et un verrou (6') et à l'autre extrémité un téton (13) et un verrou (6) ; les traverses (1) (1') sont équipées chacune de deux articulations (2) (3) articulés en (7) (7') et dans lesquelles sont logées les extrémités supérieures (25) (25') biseautées des pieds (4) (4') et (5) (5').A pair of folding trestles consisting of two U-shaped cross members (1 ') which can be paired to form a compact assembly and in which the folding trestle feet are folded and one of which is provided with a handle for facilitate its transport, characterized in that the cross member (1) has at one end a gutter (14), a latch (6) and at the other end a cutout (23), a latch (6 ') provided with a hook (11) and the crossbar (1 ') has at one of its ends a cutout (15) and a lock (6') and at the other end a pin (13) and a lock ( 6); the sleepers (1) (1 ') are each equipped with two articulations (2) (3) hinged at (7) (7') and in which are housed the upper ends (25) (25 ') beveled feet (4) ) (4 ') and (5) (5'). Paire de chevalets pliants selon la revendication 1 caractérisée en ce que les articulations (2) (3) pivotent chacune autour d'axes de rotation (7) (7') perpendiculaires aux traverses (1) (1').Pair of folding easels according to claim 1 characterized in that the joints (2) (3) each pivot about axes of rotation (7) (7 ') perpendicular to the cross members (1) (1'). Paire de chevalets pliants selon les revendications 1 et 2 caractérisée en ce que, lors de son déploiement, l'articulation (3) est libérée au moyen d'un téton (22) solidaire d'un ressort (26) pendant que l'articulation (2) est libérée simultanément et automatiquement par gravité.Pair of folding easels according to claims 1 and 2 characterized in that , during its deployment, the joint (3) is released by means of a pin (22) integral with a spring (26) while the joint (2) is released simultaneously and automatically by gravity. Paire de chevalets pliants selon les revendications 1, 2 et 3, caractérisée en ce que les deux articulations (2) (3) comportent chacune respectivement un axe (9) (9'), perpendiculaire aux dites articulations (2) (3), autour desquels pivotent automatiquement par gravité les pieds (4) (4') et (5) (5') lors du déploiement des articulations.Pair of folding easels according to claims 1, 2 and 3, characterized in that the two joints (2) (3) each comprise respectively an axis (9) (9 '), perpendicular to said joints (2) (3), around which the feet (4) (4 ') and (5) (5') automatically pivot by gravity during the deployment of the joints. Paire de chevalets pliants selon les revendications 1, 2 et 3 caractérisée en ce que les deux articulations (2) (3) en position déployée sont automatiquement verrouillées d'une façon irréversible au moyen de ressorts (19) (19') qui entraînent des verrous (6) (6') qui pivotent autour d'axes (12) (12') de façon, d'une part à ce que les verrous (6) (6') viennent prendre appui sur les articulations (2) (3) en (27) (27') et d'autre part, en ce que les dits ressorts (19) (19') prennent appui sur la face intérieure supérieure de la traverse (1) et au moyen d'une butée (17') sur laquelle l'articulation (3) vient en appui pendant que l'articulation (2) présente une découpe (16) qui vient en appui sur la butée (17).Folding trestle pair according to claims 1, 2 and 3 characterized in that the two joints (2) (3) in the deployed position are automatically locked irreversibly by means of springs (19) (19 ') which cause latches (6) (6 ') which pivot about axes (12) (12') so that, on the one hand, the latches (6) (6 ') bear on the joints (2) ( 3) in (27) (27 ') and secondly, in that said springs (19) (19') bear on the upper inner face of the crossmember (1) and by means of a stop ( 17 ') on which the hinge (3) abuts while the hinge (2) has a cutout (16) which bears on the abutment (17). Paire de chevalets pliants selon la revendication 1, caractérisée par un décalage entre le point de rotation de l'articulation (2) autour de l'axe de rotation (7) et le plan de jonction des pieds (4) (4') alors que sur l'articulation (3) ce point de rotation autour de l'axe de rotation (7') et le plan de jonction des pieds (5) (5') sont alignés horizontalement en position repliée, permettant ainsi une superposition des deux jeux de pieds (4) (4') (5) (5') et un gain de place au repliage ; chaque jeu de pieds (4) (4') et (5') (5') se superposant du fait que les axes (9) (9') intersectent l'axe de symétrie longitudinal des pieds.Pair of folding easels according to claim 1, characterized by an offset between the point of rotation of the hinge (2) about the axis of rotation (7) and the junction plane of the feet (4) (4 ') then that on the articulation (3) this point of rotation about the axis of rotation (7 ') and the junction plane of the feet (5) (5') are aligned horizontally in the folded position, thus allowing a superposition of the two set of feet (4) (4 ') (5) (5') and space saving when folding; each set of feet (4) (4 ') and (5') (5 ') being superimposed because the axes (9) (9') intersect the longitudinal axis of symmetry of the feet. Paire de chevalets pliants selon la revendication 1, caractérisée en ce que les extrémités supérieures (25) (25') en forme biseautée des pieds (4) (4') et (5) (5') de façon à obtenir une plus grande surface d'appui des pieds sur les parois internes des articulations (2) (3) en position dépliée tout en assurant la compacité dans la position repliée.Folding trestle pair according to claim 1, characterized in that the upper ends (25) (25 ') beveled feet (4) (4') and (5) (5 ') so as to obtain a larger foot support surface on the inner walls of the joints (2) (3) in the unfolded position while ensuring compactness in the folded position. Paire de chevalets pliants selon la revendication 1 caractérisée en ce que les traverses (1) (1') sont appariées par l'insertion d'une découpe (15) située à l'extrémité de la traverse (1') dans une gouttière (14) solidaire de la traverse (1) et en relevant le crochet (11) solidaire du verrou (6') de la traverse (1) lorsque les traverses sont en contact, un téton (13) solidaire de l'axe (12') de la traverse (1) vient s'insérer dans un logement (18) de la traverse (1') et le verrou (6') relâché vont ensemble solidariser la paire de chevalets et faciliter son transport.Folding trestle pair according to claim 1, characterized in that the crosspieces (1) (1 ') are matched by the insertion of a cut-out (15) at the end of the crossmember (1') into a trough ( 14) integral with the crossbar (1) and by raising the hook (11) integral with the latch (6 ') of the crossbar (1) when the crosspieces are in contact, a pin (13) integral with the axis (12'). ) of the crossbar (1) is inserted into a housing (18) of the crossbar (1 ') and the latch (6') released together will secure the pair of trestles and facilitate its transport.
EP08017592A 2008-10-07 2008-10-07 Pair of foldable trestles Active EP2174756B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PT08017592T PT2174756E (en) 2008-10-07 2008-10-07 Pair of foldable trestles
DE602008006734T DE602008006734D1 (en) 2008-10-07 2008-10-07 Pair of collapsible trestles
ES08017592T ES2365364T3 (en) 2008-10-07 2008-10-07 PAIR OF FOLDING HORSES.
EP08017592A EP2174756B1 (en) 2008-10-07 2008-10-07 Pair of foldable trestles
AT08017592T ATE507940T1 (en) 2008-10-07 2008-10-07 PAIR OF COLLAPSIBLE SUPPORT STANDS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08017592A EP2174756B1 (en) 2008-10-07 2008-10-07 Pair of foldable trestles

Publications (2)

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EP2174756A1 true EP2174756A1 (en) 2010-04-14
EP2174756B1 EP2174756B1 (en) 2011-05-04

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EP08017592A Active EP2174756B1 (en) 2008-10-07 2008-10-07 Pair of foldable trestles

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EP (1) EP2174756B1 (en)
AT (1) ATE507940T1 (en)
DE (1) DE602008006734D1 (en)
ES (1) ES2365364T3 (en)
PT (1) PT2174756E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11104554B2 (en) * 2011-05-18 2021-08-31 Reid Lifting Limited Foldable gantry

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617944A1 (en) * 1987-07-06 1989-01-13 Macc Sa IMPROVEMENT ON THE BRIDGES
DE202006003121U1 (en) * 2006-02-24 2007-07-12 Portuleiter - Produtos Metalicos S.A. Foldable stand for table assembly e.g. decoration table, has two tilting legs, where shanks are connected together by connecting strut with hinged point, and pivoted in U-profile part and other ends are connected with U-profile part

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2617944A1 (en) * 1987-07-06 1989-01-13 Macc Sa IMPROVEMENT ON THE BRIDGES
DE202006003121U1 (en) * 2006-02-24 2007-07-12 Portuleiter - Produtos Metalicos S.A. Foldable stand for table assembly e.g. decoration table, has two tilting legs, where shanks are connected together by connecting strut with hinged point, and pivoted in U-profile part and other ends are connected with U-profile part

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11104554B2 (en) * 2011-05-18 2021-08-31 Reid Lifting Limited Foldable gantry

Also Published As

Publication number Publication date
ES2365364T3 (en) 2011-09-30
PT2174756E (en) 2011-07-18
ATE507940T1 (en) 2011-05-15
EP2174756B1 (en) 2011-05-04
DE602008006734D1 (en) 2011-06-16

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