EP3228793A1 - Method for implementing a frame and frame thus obtained - Google Patents

Abstract

The invention relates to a method for producing a chassis 1 having an opening AA'-BB 'and reservations for mounting operating accessories, the chassis 1 being formed by two complementary half-shells 2, 3 , respectively inner INT and outer EXT, monoblocs, arranged vis-à-vis and held against each other by fixing means, delimiting between them a closed volume space, the method comprising the following steps: Cutting from a metal sheet of a developed of each of the two half-shells 2, 3; - Realization on the developed of each of the two half-shells of micro-breaks lines delimiting the opening A-B and reservations; - Folding the lateral edges of the developed of each of the half-shells, - Assembling the two half-shells by contacting the thus folded side edges of the two half-shells 2, 3 by interlocking to define the volume space.

Description

Technical area

The present invention relates to a method of producing a frame and a frame made by this method.

State of the art

At present, the frames consist of frames of wood, aluminum, steel or plastic such as PVC in which are integrated panels. A frame can be mobile in which case it is called opening and it is housed in a frame. But this frame can also be fixed.

The frames are in a known manner made of wooden frames, aluminum or plastic inside which are integrated panels, for the realization for example of doors.

But for greater strength, are also known, in the industrial or collective housing, doors obtained from metal tubular sections cut into sections to be assembled to form the uprights and crosses of the chassis which will later be dressed with the form of openings, called in the rest of the description "glass clear", which include by way of non-limiting example bars, windows or grilles ,.

Such frames are made from steel profiles, so as to give them robustness, good weldability, while being recyclable.

However, the implementation of steel profiles has the disadvantage of limiting the dimensions of the amounts, sleepers and siding, so to customize, the latter being reported after making a frame from the uprights and sleepers by welding operations.

This also has the disadvantage not only of multiplying the assembly operations but also, because of the cutting of the profiles and then of their welding, to create rough areas and unsightly weld seams to be ground afterwards.

Once the frame thus produced, it must be treated against corrosion and finally painted, knowing that given the number of machining operations and recoveries, the elements can not be painted beforehand.

It is the same with regard to the attachment on an opening frame of accessories such as hinges, locks, handles, door closers, or mounting screws in the case of a fixed frame, etc. which require machining operations such as drilling, milling, which can be carried out only after forming the frame of the frame, whether for use as a door or window, or at least after cutting the profile, this profile, according to its definition, is manufactured in a linear manner, without the possibility of mechanical interventions.

Description of the invention

• Découpe à partir d'une feuille métallique d'un développé de chacune des deux demi coques;
• Réalisation sur le développé de chacune des deux demi coques de lignes de micro-ruptures délimitant l'ouverture dite clair de vitre et des réservations;
• Pliage des bords latéraux du développé de chacune des demi coques,
• Assemblage des deux demi coques par mise en contact des bords latéraux ainsi pliés des deux demi-coques par emboitement pour définir l'espace volumique.

The purpose of the present invention is to remedy these various drawbacks and concerns for this purpose a method for producing a chassis comprising a so-called clear window aperture and reservations for mounting operating accessories, the chassis being formed by two complementary half-shells, respectively inner and outer, monoblocs, arranged vis-à-vis and held against each other by fixing means, delimiting between them a closed volume space, the method comprising the following steps:

• Cutting from a metal sheet of a developed of each of the two half-shells;
• Realization on the developed of each of the two half-shells of micro-ruptures lines delimiting the so-called clear opening of glass and reservations;
• Folding the lateral edges of the developed of each of the half-shells,
• Assembling the two half-shells by contacting the thus folded side edges of the two half-shells by interlocking to define the volume space.

• Avantageusement mais facultativement, les bords latéraux du développé de chacune des demi-coques sont pliés selon un angle compris entre 70° et 110°,
• Selon un mode de mise en ouvre illustré ici, les bords latéraux du développé de chacune des demi-coques sont pliés selon un angle approximativement de 90°.

The present invention also relates to the following features, which should be considered in isolation or in all their possible technical combinations:

• Advantageously but optionally, the lateral edges of the developed of each of the half-shells are folded at an angle of between 70 ° and 110 °,
• According to an implementation mode illustrated here, the lateral edges of the developed of each of the half-shells are bent at an angle of approximately 90 °.

According to a first variant, the method comprises, beyond the lines of the microcracks, the realization on one of the half-shells of caterpillars along fold lines towards the inside of the edges of the glass pane (AB), in such a way that to make a rabbet. This rabbet has a thickness of part of the thickness of the frame, preferably but optionally this rabbet has the same thickness as the frame. These rabbets serve to assemble the elements intended to fill the so-called clear opening of glass. The assembly on the rabbet makes it possible to reduce or hide the assembly means, limiting their impact on the overall aesthetics of the chassis. This rebate is performed on the inner half shell preferably but optionally to prevent access to the assembly means by the outside of the wall on which the frame is mounted, thus limiting the break-ins.

Advantageously but optionally, the step of folding the caterpillars is performed at an angle of between 70 ° and 110 ° towards the inside of the edges of the glass pane (AB).
According to an embodiment illustrated here, the folding step of the tracks is carried out at an angle of approximately 90 ° to the inside of the edges of the window clear (AB).

According to a second variant, the method comprises a step of placing in the volume space of an insulating material.

According to an embodiment illustrated here, the insulating material enclosed in the volume space is cork. Preferentially but optionally, cork is a treated cork known as expanded cork.

According to a third variant, the method comprises a step where faces of the insulating material enclosed in the volumetric space formed by the two half-shells are assembled against opposite faces of the two half-shells by gluing. This allows to secure the walls and insulation and thus improve the structural strength of the frame.

According to a fourth variant, the method comprises a step where the two half-shells are interconnected by peripheral welds at peripheral junction planes of the two half-shells. This makes it possible to hide the welds on the slices of the chassis, thus improving the aesthetics of this one. Also during grinding operations and polishing welds, the coating of the two main faces of the chassis remain intact and therefore do not require an expensive operation of recovery for the deposition of a new anticorrosive layer and a new topcoat.
Bonding the insulation and welding on the slices of the frame provides a cheap door aesthetic improvement.

An opening frame is obtained by a method comprising one or more of the preceding features. This allows for an opening such as a door for example with all the above features.

A fixed frame is obtained by a method comprising one or more of the preceding features. This makes it possible to provide chassis homogeneity and improved aesthetics for, for example, the same building comprising fixed frames and opening frames.

This description given by way of nonlimiting example, will better understand how the invention can be made with reference to the accompanying drawings in which:

Brief description of the figures

• The figure 1 represents a plan view of an opening frame according to the invention.
• The figure 2 represents a side view of the opening frame according to the figure 1 .
• The figure 3 represents a view from above of the opening frame according to the figure 1 .
• The figure 4 is a plan view of the inner facing (INT) after cutting the reservations and before folding for the realization of an opening frame according to the figure 1 .
• The figure 5 is an enlarged view of detail Z according to the figure 4 .
• The figure 6 is a view according to the figure 4 inside facing (INT), after folding.
• The figure 7 is a plan view of the exterior facing (EXT), after cutting and before folding.
• The figure 8 is a view according to the figure 7 exterior facing (EXT), after folding.
• The figure 9 is a sectional view along line AA of figures 6 and 8 , respectively inner (INT) and outer (EXT) facing, before assembly, by interposed insulation.
• The figure 10 is a sectional view along line BB of figures 6 and 8 , respectively inner (INT) and outer (EXT) facing, before assembly, by interposed insulation.
• The figure 11 is a sectional view along line AA of figures 6 and 8 respectively inner (INT) and outer (EXT) facings, after assembly, by interposed insulation.
• The figure 12 is a sectional view along line BB of figures 6 and 8 , respectively inner (INT) and outer (EXT) facing, before assembly, by interposed insulation.
• The figure 13 represents a plan view of a fixed frame according to the invention.
• The figure 14 represents a top view of the fixed frame according to the figure 13 .
• The figure 15 represents a side view of the opening frame according to the figure 13 .

detailed description

The chassis 1 generally designated on the figure 1 is an opening frame designated in the rest of the description by the term "door" cited by way of example, on which are reported operating accessories (not shown).
The door 1 is formed by two complementary half-shells 2,3, respectively inner INT and outer EXT, monoblocks, arranged vis-à-vis and held against each other by fixing means, defining between them a volume space "V" closed.
According to the invention, the two complementary half-shells 2,3 include the reservations of the operating accessories.
Advantageously, the volume space contains an insulating material 4. Preferably, the insulating material 4 enclosed in the volume space "V" is cork.
According to the method of producing such a door 1, each of the two half-shells 2, 3 the forming one is obtained distinctly from the other from a flat metal sheet corresponding to its own development, on which are successively practiced a cutting operation, by laser or by punching, reservations 117-124 operating accessories, then a folding operation, preferably but optionally at an angle of between 70 ° and 110 °, preferably but optionally at an angle of about 90 ° from its lateral edges towards the inside, then brought into contact with each other by interlocking to define the volume space "V".
The opening 1 being glazed, the half-shells 2,3 comprise at least one aperture A, A ', B, B' so-called clear glass, delimited on each developed by lines formed of micro-breaks 101-108 in view of their subsequent cuts.
Beyond the lines of micro-breaks 101-108, are made on one of the hulls of the tracks 109-116 along fold lines, preferably but optionally at an angle of between 70 ° and 110 °, preferably but optionally at an angle of about 90 ° to the inside of the edges of the glass pane AB, so as to make a rabbet thereon.
The insulating material 4 enclosed in the volumetric space "V" formed by the two half-shells 2, 3 has its faces facing the internal faces of the two half-shells 2,3 bonded.
In this way, the planar blank metal sheet may be pre-coated and protected by a peelable plastic film, on the face of the flat metal sheet which must constitute one of the visible faces of the door, which allows all the folding operations, and which allows to deliver, at the end of the process, facings ready to be assembled without degreasing, without complex painting operation and without handling.

According to another embodiment, the two half-shells 2,3 are interconnected by peripheral welds at their peripheral junction planes g, u-r, s-h, t.

The operations for producing a frame such as a door according to the aforementioned method are for example the following:

I- Cutting operation

• réalisation par découpe laser des micro attaches 101,102,103,104, délimitant le clair de vitre « A » et 105,106,107,108 du clair de vitre « B » ;
• réalisation par découpe laser des chenilles 109,110,111,112 du clair de vitre « A » et 113,114,115,116 du clair de vitre « B » ;
• réalisation par découpe laser de réservations 142 tel que des lumières permettant à travers celles-ci de souder dans une étape ultérieure des pièces de tôle de forte épaisseur (non représentées ici) destinées à supporter les moyens de rotation de l'ouvrant 1 (non représentés ici);

• réalisation par découpe laser des réservations 121 et 122 permettant le passage et la fixation de contreplaques de ventouses électromagnétiques, éléments du verrouillage de l'ouvrant ;
• réalisation par perçage des réservations 123 et 124 pour la fixation d'une poignée (non représentée) ;
• réalisation par découpe laser des réservations 117,118,119,120 sur l'un des côtés des clairs de vitre « A » et « B » pour permettant l'accès ultérieur à l'intérieur de l'ouvrant aux moyens de fixation d'une poignée et de contreplaques de ventouses électromagnétiques
• réalisation par découpe laser des amorces de pliage 133,134,135,136 et 137,138,139,140 autour des clairs de vitre « A » et « B ».

Cutting operation on the inner half shell 2 INT:

• laser cutting of the micro-fasteners 101,102,103,104, delimiting the window pane "A" and 105,106,107,108 of the window pane "B";
• laser cutting of the tracks 109,110,111,112 of the window pane "A" and 113,114,115,116 of the window pane "B";
• embodiment by laser cutting reservations 142 such as lights allowing through them to weld in a subsequent step of thick sheet metal parts (not shown) here) intended to support the means of rotation of the opening 1 (not shown here);

• embodiment by laser cutting reservations 121 and 122 for the passage and the attachment of electromagnetic vacuum plywood plates, elements of the locking of the opening;
• drilling by making reservations 123 and 124 for fixing a handle (not shown);
• embodiment by laser cutting reservations 117,118,119,120 on one of the sides of the glass clears "A" and "B" for allowing subsequent access to the interior of the opening to the means for fixing a handle and counterplates of electromagnetic cupping
• laser cutting of the folding primers 133,134,135,136 and 137,138,139,140 around the glass clears "A" and "B".

• réalisation par découpe laser des micro attaches 125,126,127,128 délimitant le clair de vitre « A' » et 129,130,131,132 du clair de vitre « B' » ;
• réalisation par découpe laser de réservations 143 tel que des lumières permettant à travers celles-ci de souder dans une étape ultérieure des pièces de tôle de forte épaisseur (non représentées ici) destinées à supporter les moyens de rotation de l'ouvrant 1 (non représentés ici);
• réalisation par perçage des réservations 133 et 134 pour la fixation de la poignée (non représentée) correspondant aux réservations 123 et 124 de la demi coque intérieure (INT).

Cutting operation on the outer half-shell 3 EXT:

• laser cutting of the micro-fasteners 125,126,127,128 delimiting the glass pane "A '" and 129,130,131,132 of the glass pane "B'";
• embodiment by laser cutting of reservations 143 such as lights allowing through them to weld in a subsequent step thick sheet metal parts (not shown here) intended to support the means of rotation of the opening 1 (not shown) right here);
• drilling by making reservations 133 and 134 for fixing the handle (not shown) corresponding to the reservations 123 and 124 of the inner half-shell (INT).

• élimination par découpe des micro attaches 101,102,103,104 et 105,106,107,108 des panneaux correspondant aux clairs de vitre « A » et « B » de la demi-coque intérieure INT ;
• élimination par découpe laser des micro attaches 125,126,127,128 et 129,130,131,132 correspondant aux clairs de vitre « A' » et « B' » de la demi-coque extérieure EXT.

Cutting operation on the half-shells 2 inner (INT) and 3 outer (EXT):

• removing by cutting micro-fasteners 101,102,103,104 and 105,106,107,108 panels corresponding to clear glass "A" and "B" of the inner half-shell INT;
• elimination by laser cutting of the micro-fasteners 125,126,127,128 and 129,130,131,132 corresponding to the glass clearances "A '" and "B'" of the outer half-shell EXT.

II- Folding operation, always directed inwardly, that is to say opposite to the face of the flat metal sheet which must constitute one of the visible faces of the door

• pliage à 90° des parties périphériques a,b,c,d ;
• pliage à 90° de la partie « e » autour de la ligne « f » ;
• contre-pliage g,h,i à 90° des parties b,c,d ;
• pliage à 90° des parties k,l,m,n entourant le clair de vitre « A » et k',l',m',n' entourant le clair de vitre « B ».

Folding operation on the inner half shell 2 INT:

• 90 ° folding of the peripheral parts a, b, c, d;
• 90 ° folding of the "e" part around the "f"line;
• backcracking g, h, i at 90 ° of parts b, c, d;
• 90 ° bending of the parts k, l, m, n surrounding the glass pane "A" and k ', the, m', n 'surrounding the glass pane "B".

• pliage successif à 90° des parties périphériques o,p,q,r ;
• contre-pliage s,t,u à 90° des parties o,p,q.

Folding operation on the outer half shell 3 EXT:

• successive folding at 90 ° of the peripheral parts o, p, q, r;
• bending s, t, u at 90 ° of the parts o, p, q.

III- Assembly operation

• In the volume space "V", around the glass clearances "AA'-BB '", half-shells 2 and 3, the insulator 4, in this case cork, is placed after gluing on its faces, preferentially on the opposite faces of the faces of the two half-shells.
• The half-shells 2 and 3 are joined together by means of glue.
• Sizing can also be done in two stages, face to face. There is then a first gluing step between the insulator 4 and a first half-shell, followed by a drying time, then by a second gluing step between the insulator 4 and the second half-shell.
• Optionally, weld peripheral junction planes g, u-r, s-h, t half-shells 2 and 3.
• Mounting accessories.

• Moins de pièces mises en oeuvre, donc moins de reprises, et conséquemment plus économique.
• Intégration directe au découpage laser des réservations pour les accessoires.
• Repérage des pièces par marquage laser (évite les erreurs d'identification des pièces).
• Possibilité d'intégrer des décors par découpe laser.
• Plus de robustesse car deux coques monobloc.
• Moins de reprises anti-corrosion car moins de soudures dans le cas de parements soudés.
• Pas de reprises anti-corrosion dans le cas de parements collés.
• Intégration d'isolants entre les deux parements par collage direct à la colle polyuréthane.
• Temps de mise en oeuvre considérablement réduit de par le process automatisé de découpe et pliage - plus économique.
• Conception des portes selon des dimensions standards pour maximiser la répétabilité.
• Programmation paramétrique de la machine permettant d'évoluer automatiquement vers des dimensions sur mesures.
• Possibilité de fabriquer les portes avec des tôles de différentes épaisseurs (1mm - 1,2mm - 1,5mm - 2mm), et différentes matières (acier brut, acier électrozingué, acier inoxydable, cuivre, laiton, etc.).
• Possibilité de travailler la tôle peinte directement d'origine.
• Possibilité de faire varier l'épaisseur du châssis avec ce concept pour permettre l'adjonction d'isolant plus épais, donc plus performant, ainsi que des vitrages isolants plus épais également.
• Intégration d'un isolant - liège expansé - ayant les caractéristiques suivantes :
  • Bonne stabilité dimensionnelle : tenue au flambage - résistance à la déformation, dilatation, flexion.
  • Bonne tenue à la compression : tenue aux agressions extérieures : effraction - vandalisme.
  • Excellent isolant thermique et phonique.
  • Excellent isolant vibratoire : non propagation des vibrations dans un châssis et limitation des phénomènes de caisse de résonnance dus aux fermetures et claquements dans le cas de châssis ouvrants.
  • Absorbe les vibrations et les bruits générés par le claquement des électro-aimants dans le cas d'une utilisation pour la réalisation d'un châssis ouvrant.
  • Limitation de la propagation de la flamme en cas d'incendie.
  • Ne dégage pas de toxicité en se consumant.
  • Résiste à l'eau et empêche les phénomènes de condensation à l'intérieur des portes et de par le fait de corrosion.
  • Mise en oeuvre de cet isolant aisée car découpage très facile.
  • Collage de cet isolant facile.
  • Très léger, ne pénalise pas le poids du châssis, et plus particulièrement dans le cas de la fermeture de châssis ouvrants, ce qui préserve les organes de fermeture comme les ferme-portes hydrauliques.
  • Imputrescible, hydrofuge.
  • Amélioration de l'étanchéité
  • ne gonfle pas sous atmosphère humide.
  • Bonne tenue aux brouillards salins.
  • 100% recyclable, biodégradable, très longue tenue dans le temps.
  • Bonne résistance aux parasites, aux acides, aux rongeurs.

A chassis thus designed has the following advantages:

• Less parts implemented, so fewer times, and consequently more economical.
• Direct integration with laser cutting of reservations for accessories.
• Marking parts by laser marking (avoids misidentification of parts).
• Possibility to integrate decorations by laser cutting.
• More robustness because two monobloc shells.
• Fewer anti-corrosion recoveries because fewer welds in welded siding.
• No anti-corrosion recovery in the case of bonded siding.
• Integration of insulation between the two facings by direct gluing with polyurethane glue.
• Implementation time considerably reduced by the automated cutting and bending process - more economical.
• Door design to standard dimensions to maximize repeatability.
• Parametric programming of the machine allowing to evolve automatically to customized dimensions.
• Possibility to manufacture the doors with sheets of different thicknesses (1mm - 1,2mm - 1,5mm - 2mm), and different materials (raw steel, galvanized steel, stainless steel, copper, brass, etc.).
• Possibility of working directly painted original sheet metal.
• Possibility to vary the thickness of the chassis with this concept to allow the addition of thicker insulation, so more efficient, and thicker insulating glass also.
• Integration of an insulator - expanded cork - with the following characteristics:
  • Good dimensional stability: buckling behavior - resistance to deformation, expansion, flexion.
  • Good resistance to compression: resistance to external aggressions: burglary - vandalism.
  • Excellent thermal and sound insulation.
  • Excellent vibratory insulation: no propagation of vibrations in a chassis and limitation of sound box phenomena due to closures and slamming in the case of opening frames.
  • Absorbs the vibrations and noises generated by the slamming of the electromagnets in the case of use for the realization of an opening frame.
  • Limitation of the propagation of the flame in case of fire.
  • Does not release toxicity by burning.
  • Resists water and prevents condensation inside the doors and corrosion.
  • Implementation of this easy insulation because cutting very easy.
  • Bonding this easy insulation.
  • Very light, does not penalize the weight of the chassis, and more particularly in the case of the closing of opening sashes, which preserves the closing devices like the hydraulic door closers.
  • Impotent, water repellent.
  • Improved sealing
  • does not swell in a humid atmosphere.
  • Good resistance to salty fogs.
  • 100% recyclable, biodegradable, very long lasting.
  • Good resistance to parasites, acids, rodents.

According to another embodiment, a fixed frame 1 'as illustrated in FIGS. Figures 13 to 15 can be made in the same way as the opening frame 1 of the figure 1 . The operating accessories are then retaining screws for hanging the frame 1 'to the rest of the peripheral structure to the frame 1'. These accessories require reservations in the form of lights 141 to be made during the steps preceding the folding of the metal sheet, instead of the step of making reservations for the opening frames 1 as described above.

In the example shown on the Figures 13 to 15 , reservations 141 are lights and are on the inner shell 2 INT.

Claims (10)

Process for the production of a chassis (1) comprising an aperture (AA'-BB '), said clear glass, and reservations for the mounting of operating accessories, the chassis (1) being formed by two complementary half-shells (2, 3), respectively inner (INT) and outer (EXT), monoblocks, arranged vis-à-vis and held against each other by fixing means, delimiting between them a volume space (V) closed, characterized in that the method comprises the following steps: ∘ Cutting from a metal sheet of a developed of each of the two half-shells (2,3); ∘ Realization on the developed of each of the two half-shells of micro-breaks lines (101-108) delimiting the opening (AB) so-called window clear and reservations; ∘ Folding the lateral edges of the developed of each of the half-shells, ∘ Assembly of the two half-shells by contacting the thus folded side edges of the two half-shells (2, 3) by interlocking to define the volume space (V). A method for producing a frame (1) according to claim 1, characterized in that the lateral edges of the developed of each of the half-shells are bent at an angle of between 70 ° and 110 °. Process for producing a frame (1) according to Claim 1 or 2, characterized in that , beyond the lines of the micro-breaks (101-108), are formed on one of the half-shells caterpillars (109-116) along fold lines inwardly of the edges of the window pane (AB), so as to provide a rebate. Process for the production of a frame (1) according to Claim 3, characterized in that the step of folding the tracks is carried out at an angle of between 70 ° and 110 ° towards the inside of the edges of the glass pane ( AB). Process for the production of a frame (1) according to one of Claims 1 to 4, characterized in that it comprises a step of placing in the volume space (V) formed by the half-shells (2, 3) an insulating material (4). Process for the production of a frame (1) according to claim 5, characterized in that the insulating material (4) enclosed in the volume space (V) formed by the half-shells (2, 3) is cork. Process for the production of a frame (1) according to one of Claims 5 or 6, characterized in that faces of the insulating material (4) enclosed in the volumetric space (V) formed by the two half-shells (2, 3) are assembled against opposite faces of the two half-shells (2, 3) by gluing. Process for the production of a frame (1) according to one of Claims 1 to 7, characterized in that the two half-shells (2, 3) are interconnected by peripheral welds at peripheral junction planes. (g, ur, sh, t) of the two half-shells (2, 3). Opening frame (1) characterized in that it is obtained by a method according to one of claims 1 to 8. Fixed frame (1) characterized in that it is obtained by a method according to one of claims 1 to 8.

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