FR2514394A1 - Shuttering panel for forming opening in cast walls - comprises telescopically adjustable diagonal arms pivotally attached to support plate - Google Patents

Shuttering panel for forming opening in cast walls - comprises telescopically adjustable diagonal arms pivotally attached to support plate Download PDF

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Publication number
FR2514394A1
FR2514394A1 FR8119204A FR8119204A FR2514394A1 FR 2514394 A1 FR2514394 A1 FR 2514394A1 FR 8119204 A FR8119204 A FR 8119204A FR 8119204 A FR8119204 A FR 8119204A FR 2514394 A1 FR2514394 A1 FR 2514394A1
Authority
FR
France
Prior art keywords
formwork
support plate
elements
diagonals
panel
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.)
Withdrawn
Application number
FR8119204A
Other languages
French (fr)
Inventor
Victor Lorenzi
Andre Accetta
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.)
RENAUDIER CONSTRUCTION
Original Assignee
RENAUDIER CONSTRUCTION
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 RENAUDIER CONSTRUCTION filed Critical RENAUDIER CONSTRUCTION
Priority to FR8119204A priority Critical patent/FR2514394A1/en
Publication of FR2514394A1 publication Critical patent/FR2514394A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/02—Forms or shutterings for making openings, cavities, slits, or channels for windows, doors, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/063—Re-usable forms
    • E04G15/065—Re-usable forms with mechanical means to modify the section

Abstract

The adjustable shuttering panel for forming openings for windows in cast concrete walls, comprises a support plate (2) carrying a transverse axis (6) at its centre to which diagonal telescopic arms (3) are pivoted. The ends of the arms carry pivoting corner brackets (4) whilst the arms themselves are adjustable in length. The reverse side of the support plate carries attachments, allowing the panel to be correctly positioned between shuttering partitions. The perimeter of the panel is made up of removable straight sections (11a,11b) extending between right-angled corners (10) attached to the corner brackets.

Description

L'invention est relative à un coffrage extensible pour la réservation d'ouverture dans les murs banchés. The invention relates to an extensible formwork for the opening reservation in the tiled walls.

les murs banchés sont réalisés au moyen de panneaux de coffrage intérieurs et extérieurs se faisant vis-à-vis en ménageant entre eux un espace correspondant à l'épaisseur du mur.leurs faces en vis-à-vis sont celles de plaques métalliques ou en bois appelées banches,
Lorsque le béton est coulé entre coffrages,il remplit totalement l'intervalle formé par ceux-ci.De la sorte, lorsque le pan de mur comporte une ouverture ,il est nécessaire de mettre en place,lors de la réalisation du coffrage,des coffrages de réservation remplissant localement l'intervalle entre les panneaux intérieurs et extérieurs pour empêcher que le béton remplisse l'espace correspondant à l'ouverture0
Traditionnellement,ces coffrages de réservation sont réalisés à la demande sur les chantiers et exigent donc du personnel qualifié.Il nécessite aussi du temps pour eA tre fabriqué et positionné entre les panneaux de coffrage.the joined walls are made by means of interior and exterior formwork panels facing each other, leaving between them a space corresponding to the thickness of the wall. Their opposite faces are those of metal plates or woods called planks,
When the concrete is poured between forms, it completely fills the gap formed by them. So, when the wall section has an opening, it is necessary to put in place, when making the formwork, locally filling the space between the interior and exterior panels to prevent the concrete filling the space corresponding to the opening0
Traditionally, these reservation forms are made on demand on construction sites and therefore require qualified personnel. It also requires time to be manufactured and positioned between the formwork panels.

La présente invention a pour but de fournir un coffrage extensible qui,tout en étant récupérable,permette de réaliser des réserves pour des ouvertures de formes et de dimensions variables et soit facile à mettre en oeuvre et à coffrer
A cet effet,le coffrage selon l'invention est constitué par une plaque support portant,en son centre,un axe transversal,par plusieurs diagonales télescopiques articulées par l'une de leurs extrémités sur l'axe précité ,par des pièces d'angle dont chacune est articulée au niveau de son angle sur l'extrémité libre de la diagonale télescopique correspondante,par des moyens amovibles de calage angulaire des diagonales sur la plaque support,par des moyens de fixation de la plaque support sur la banche d'un panneau de coffrage et par des éléments de cadre formant la périphérie du coffrage et composés,d'une part,d'éléments coudés ,liés aux pièces d'angle et,d'autre part,d'éléments rectilignes et amovibles constituant clés de raccord. The object of the present invention is to provide an extensible formwork which, while being recoverable, makes it possible to make reserves for openings of variable shape and size and is easy to implement and formwork
To this end, the formwork according to the invention consists of a support plate carrying, in its center, a transverse axis, by several telescopic diagonals articulated by one of their ends on the aforementioned axis, by corner pieces. each of which is articulated at its angle on the free end of the corresponding telescopic diagonal, by removable means of angular setting of the diagonals on the support plate, by means of fixing the support plate on the panel of a panel formwork and by frame elements forming the periphery of the formwork and composed, on the one hand, of bent elements, linked to the corner pieces and, on the other hand, rectilinear and removable elements constituting connection keys.

Pour réaliser un coffrage de réservation,il suffit donc,après avoir réglé les diagonales télescopiques,tant angulairement que longitudinalement,de caler ces dernières sur la plaque support ,puis de rapporter,entre les éléments coudés du cadre ,des éléments rectilignes ayant la longueur désirée et,comme ces éléments coudés,une épaisseur correspondant à la largeur intérieure du coffrage. To make a reservation formwork, it is therefore sufficient, after adjusting the telescopic diagonals, both angularly and longitudinally, to wedge the latter on the support plate, then to add, between the bent elements of the frame, rectilinear elements having the desired length and, like these bent elements, a thickness corresponding to the interior width of the formwork.

Ce coffrage extensible peut être utilisé de nombreuses fois sur un même chantier pour assurer la réservation d'ouverture de même dimension,mais il peut aussi être très facilement modifié en fonction de la nécessité du chantier. This extendable formwork can be used many times on the same site to ensure the reservation of opening of the same size, but it can also be very easily modified according to the need of the site.

D'autres caractéristiques et avantages ressortiront de la description qui suit en référence au dessin schématique annexé représentant un type d'exemple non limitatif d'une forme d'exécution de ce coffrage de réservation. Other characteristics and advantages will emerge from the description which follows with reference to the appended schematic drawing representing a type of non-limiting example of an embodiment of this reservation formwork.

Figure 1 en est une vue de face en élévation,
Figure 2 en est une vue en coupe suivant 2-2 de figure 1.Figure 1 is a front view in elevation,
Figure 2 is a sectional view along 2-2 of Figure 1.

Le coffrage est constitué par une plaque support 2, réalisée en bois ou en tôle,par des diagonales télescopiques j et par des pièces d'angle 4. The formwork consists of a support plate 2, made of wood or sheet metal, by telescopic diagonals j and by corner pieces 4.

Chacune des quatre diagonales télescopiques 3 est composée d'un élément tubulaire 3a dans lequel peut coulisser un autre élément 3b.Les différents éléments 3b sont munis,à leur extrémité,d'un oeillet 5 traversé par un axe transversal 6 lui-même lié au centre de la plaque support 2.Chaque élément 3a comporte,à son extrémité libre,un oeillet 6 traversé par un axe 7 traversant également un fourreau non representé disposé dans l'angle intérieur de la pièce d'angle 4,ayant ici la forme d'un coude à 900.  Each of the four telescopic diagonals 3 is composed of a tubular element 3a in which another element 3b can slide. The different elements 3b are provided, at their end, with an eyelet 5 crossed by a transverse axis 6 itself linked to the center of the support plate 2.Each element 3a comprises, at its free end, an eyelet 6 crossed by an axis 7 also passing through an unrepresented sheath disposed in the interior corner of the corner piece 4, here having the form d '' a bend at 900.

les différentes diagonales 3 sont calees angulairement sur la plaque support 2 par des moyens qui,dans cette forme d'exécution, sont constitués par des pattes 8. Rapportées par soudure sur les éléments ~ ,ces pattes font saillie de ces éléments et sont munies de perçages pour le passage de vis 9 permettant leur fixation sur la plaque support 2. the different diagonals 3 are angularly wedged on the support plate 2 by means which, in this embodiment, are constituted by lugs 8. Reported by welding on the elements ~, these lugs protrude from these elements and are provided with holes for the passage of screws 9 allowing their attachment to the support plate 2.

Pour réaliser un coffrage de réservation,avec le dis positif,ltopérateur règle d'abord la position angulaire des différentes diagonales 3 , puis leur longueur,de manière que les pièces d'angle 4 délimitent un rectangle ou un carré ayant les dimensions recherchées .Cette opération terminée,les diagonales sont calées au moyen des vis 9 traversant les pattes 8 et se fixant dans la plaque support 2. Ensuite ,l'opérateur découpe,aux dimensions ,les quatre éléments de cadre rectilignes 1 et 11b qui sont glissés entre les éléments de cadre coudés 10 fixés à demeure sur les pièces d'angle 4. Ces élémentsîîa-Iibet les éléments coudés 10 peuvent être métalliques ou en bois. To make a reservation formwork, with the positive saying, the operator first sets the angular position of the different diagonals 3, then their length, so that the corner pieces 4 delimit a rectangle or a square having the desired dimensions. operation completed, the diagonals are wedged by means of the screws 9 passing through the legs 8 and fixing themselves in the support plate 2. Then, the operator cuts, to dimensions, the four rectilinear frame elements 1 and 11b which are slid between the elements bent frame 10 permanently fixed to the corner pieces 4. These elementsîîa-Iibet bent elements 10 may be metallic or wooden.

Il ressort de ce qui précède,que pour former le coffrage selon l'invention,l'opérateur n'a à découper que les éléments rectilignes1 a et11b du cadre et,en d'autres termes,ne doit procéder à des opérations de découpage que sur quelques éléments au lieu d'avoir à découper tous les éléments et à les assembler ,comme c'est le cas avec les solutions actuelles. It appears from the above, that to form the formwork according to the invention, the operator has to cut only the straight elements 1a and 11b of the frame and, in other words, should only carry out cutting operations that on a few elements instead of having to cut out all the elements and assemble them, as is the case with current solutions.

Avantageusement,et comme montré à la figure 1,les éléments 11a et 11b ,constituant clé de raccord,ont leurs extrémités coupées en sifflet,de manière à être facilement introduites entre les extrémités coupées également en sifflet des pièces coudées 10,mais aussi à pouvoir en être facilement extraites au moment du décoffrage .Dans le même but,et comme montré à la figure 2,chacune des pièces d'angle 4 présente également des faces inclinées transversalement sur leSquelles s'appuient des faces inclinées des éléments rectilignes lIa et llbdu cadre présentant ainsi, en section transfersale,une forme de coin. Advantageously, and as shown in FIG. 1, the elements 11a and 11b, constituting the connection key, have their ends cut into a whistle, so as to be easily introduced between the ends also cut into a whistle of the bent pieces 10, but also able to be easily extracted from it at the time of formwork. For the same purpose, and as shown in FIG. 2, each of the corner pieces 4 also has faces inclined transversely on the which are supported by inclined faces of the rectilinear elements lIa and llbdu frame thus presenting, in the transfer section, a wedge shape.

Lorsque ce coffrage est utilisé,il est fixé sur la face interne de l'un des deux panneaux de coffrage 12 et 13 ,comme montré à la figure 2.Cette fixation est assurée par des tiges filetées 14 traversant des trous 15 de la plaque support 2 et le panneau de coffrage correspondant , pour recevoir un écrou 16 accessible à l'extérieur du coffrage 12. When this formwork is used, it is fixed on the internal face of one of the two formwork panels 12 and 13, as shown in Figure 2. This fixing is ensured by threaded rods 14 passing through holes 15 in the support plate 2 and the corresponding formwork panel, to receive a nut 16 accessible outside the formwork 12.

Dès que le coffrage de réservation est mis en place et fixé,l'autre panneau de coffrage 13 est rappliqué contre lui o
Il est à noter que les éléments de cadre11a,11bet 10 ont une épaisseur 1 qui est sensiblement égale à la largeur d de l'intervalle séparant les deux panneaux 12 et JI. As soon as the reservation formwork is put in place and fixed, the other formwork panel 13 is pressed against it o
It should be noted that the frame elements 11a, 11bet 10 have a thickness 1 which is substantially equal to the width d of the gap separating the two panels 12 and JI.

Lors du décoffrage,après retrait du panneau de coffrage 13, les éléments rectilignes Il a et 11b sont facilement retirés gA grâce à leur section en forme de coin et à leur extrémité en biseau. During formwork, after removal of the formwork panel 13, the rectilinear elements 11a and 11b are easily removed gA thanks to their wedge-shaped section and their beveled end.

Après retrait-des éléments rectilignes 11a-11b, les éléments coudés 10 du cadre possèdent une liberté de mouvement qui facilite le décoffrage total du coffrage de réservation après dévissage des écrous 16.  After removal of the rectilinear elements 11a-11b, the bent elements 10 of the frame have a freedom of movement which facilitates the total formwork of the reservation formwork after unscrewing the nuts 16.

Claims (5)

-REYENDICAXIONS--REYENDICAXIONS- 1-Coffrage extensible pour la réservation d'ouvertu 1-Extensible formwork for opening reservation res dans les murs banchés ,caractérisé en ce qu'il est res in timbered walls, characterized in that it is constitué par une plaque support (2) portant en son cen consisting of a support plate (2) bearing in its center tre un axe transversal (6),par plusieurs diagonales té be a transverse axis (6), by several diagonals t lescopiques (3) articulées par l'une de leurs extrémités sur l'axe (6) précité,par des pièces d'angle (4)dont chacune est articulée au niveau de son angle sur l'extrémité libre de la diagonale télescopique correspondante,par des moyens amovibles (8) de calage angulaire des' diagonales,  lescopiques (3) articulated by one of their ends on the aforementioned axis (6), by corner pieces (4) each of which is articulated at its angle on the free end of the corresponding telescopic diagonal, by removable means (8) for angular setting of the 'diagonals, (3) sur la plaque support (2),par des moyens de fixation (3) on the support plate (2), by fixing means (14) de la plaque support sur la banche d'un panneau de coffrage (12) et par des éléments de cadre formant la périphérie du coffrage et composés,d'une part,d'éléments coudés (10),liés aux pièces d'angle (4) et,d'autre part, d'élements rectilignes et amovibles 01a-nNb)constituant clés de raccord. (14) of the support plate on the formwork of a formwork panel (12) and by frame elements forming the periphery of the formwork and composed, on the one hand, of bent elements (10), connected to the parts d 'angle (4) and, on the other hand, rectilinear and removable elements 01a-nNb) constituting connection keys. 2-Coffrage selon la revendication 1,caractérisé en ce que les diagonales télescopiques (3) sont au nombre de 2-Formwork according to claim 1, characterized in that the telescopic diagonals (3) are the number of quatre et sont munies chacune d'une pièce d'angle (4) formant un coude à 900.  four and are each provided with a corner piece (4) forming an elbow at 900. 3-Coffrage selon l'une quelconque des revendications 1 et 2,caractérisé en ce que chaque diagonale (3) est articulée sur un axe (6) disposé à l'intérieur du coude de la pièce d'angle (4) correspondante. 3-Formwork according to any one of claims 1 and 2, characterized in that each diagonal (3) is articulated on an axis (6) disposed inside the elbow of the corresponding corner piece (4). 4-Coffrage selon l'une quelconque des revendications 1 à 3,caractérisé en ce que les moyens de calage angulaires sur la plaque support (2) de chaque diagonale télescopique (3) sont constitués par des pattes (8) saillant de l'un des éléments de la diagonale télescopique et aptes à être fixés par une liaison démontable sur la plaque support. 4-Formwork according to any one of claims 1 to 3, characterized in that the angular wedging means on the support plate (2) of each telescopic diagonal (3) are constituted by lugs (8) projecting from one elements of the telescopic diagonal and able to be fixed by a removable link on the support plate. 5-Coffrage selon l'une quelconque des revendications 1 et 4,caractérisé en ce que les éléments rectilignes (?la-llb) du cadre présentent des extrémités coupées en sifflet aptes à s'insérer entre les extrémités des éléments coudés (10) du cadre,extrémités également coupées en sifflet ,mais en sens inverse et,d'autre part,sont en contact avec la face sous-jacente des pièces d'angle (4) par une face inclinée leur donnant une section transversale en coin facilitant leur décoffrage.  5-Formwork according to any one of claims 1 and 4, characterized in that the rectilinear elements (? La-llb) of the frame have ends cut in whistle capable of being inserted between the ends of the bent elements (10) of the frame, ends also cut as a whistle, but in the opposite direction and, on the other hand, are in contact with the underlying face of the corner pieces (4) by an inclined face giving them a corner cross section facilitating their formwork .
FR8119204A 1981-10-08 1981-10-08 Shuttering panel for forming opening in cast walls - comprises telescopically adjustable diagonal arms pivotally attached to support plate Withdrawn FR2514394A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8119204A FR2514394A1 (en) 1981-10-08 1981-10-08 Shuttering panel for forming opening in cast walls - comprises telescopically adjustable diagonal arms pivotally attached to support plate

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FR8119204A FR2514394A1 (en) 1981-10-08 1981-10-08 Shuttering panel for forming opening in cast walls - comprises telescopically adjustable diagonal arms pivotally attached to support plate

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2696203A1 (en) * 1992-09-30 1994-04-01 Vadala Pierrino Modular shutter fitting for leaving holes in concrete - comprises bolted sections in right angled triangle shape with hypotenuse as strut and other sides against concrete
EP0846816A1 (en) * 1996-12-04 1998-06-10 Gerd Rothweiler Form for window or door openings
GB2388149A (en) * 2002-05-03 2003-11-05 Peri Gmbh Adjustable formwork for producing a recess such as a door or window in a concrete structure
CN105113788A (en) * 2015-08-18 2015-12-02 西安建筑科技大学 Retractable door window hole mold and assembling method
US20180313098A1 (en) * 2017-04-26 2018-11-01 Norton Baum Power Assisted Stripping Corner For Forming Concrete Walls
CN108758221A (en) * 2018-07-05 2018-11-06 池州市德聚软件开发有限公司 A kind of communication equipment holder that can highly adjust
CN110259121A (en) * 2019-05-30 2019-09-20 中国一冶集团有限公司 A kind of reserved opening support mould tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1010974A (en) * 1948-11-16 1952-06-17 Thinning molds for the construction of flues, air vents, waterfalls, etc. for the building
US3476351A (en) * 1967-07-03 1969-11-04 Harold D Burdett Expandable form for hollow-core concrete construction
DE2148632A1 (en) * 1971-09-29 1973-05-10 Gerhard Kmoch FORMWORK FOR DOORS
FR2253900A1 (en) * 1975-01-03 1975-07-04 Compensation Ste Gle Wall shuttering producing wall voids - has void producing frames bolted to inner face of shuttering pane
CH620260A5 (en) * 1977-10-06 1980-11-14 Carmelo Albanese Assembled shuttering for blocking out openings

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1010974A (en) * 1948-11-16 1952-06-17 Thinning molds for the construction of flues, air vents, waterfalls, etc. for the building
US3476351A (en) * 1967-07-03 1969-11-04 Harold D Burdett Expandable form for hollow-core concrete construction
DE2148632A1 (en) * 1971-09-29 1973-05-10 Gerhard Kmoch FORMWORK FOR DOORS
FR2253900A1 (en) * 1975-01-03 1975-07-04 Compensation Ste Gle Wall shuttering producing wall voids - has void producing frames bolted to inner face of shuttering pane
CH620260A5 (en) * 1977-10-06 1980-11-14 Carmelo Albanese Assembled shuttering for blocking out openings

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2696203A1 (en) * 1992-09-30 1994-04-01 Vadala Pierrino Modular shutter fitting for leaving holes in concrete - comprises bolted sections in right angled triangle shape with hypotenuse as strut and other sides against concrete
EP0846816A1 (en) * 1996-12-04 1998-06-10 Gerd Rothweiler Form for window or door openings
GB2388149A (en) * 2002-05-03 2003-11-05 Peri Gmbh Adjustable formwork for producing a recess such as a door or window in a concrete structure
FR2839528A1 (en) * 2002-05-03 2003-11-14 Peri Gmbh FORMWORK SYSTEM FOR CONCRETE BODY
GB2388149B (en) * 2002-05-03 2005-07-13 Peri Gmbh Formwork system for concrete bodies
US7073766B2 (en) 2002-05-03 2006-07-11 Peri Gmbh Formwork system for concrete bodies
CN105113788A (en) * 2015-08-18 2015-12-02 西安建筑科技大学 Retractable door window hole mold and assembling method
US20180313098A1 (en) * 2017-04-26 2018-11-01 Norton Baum Power Assisted Stripping Corner For Forming Concrete Walls
US10753108B2 (en) * 2017-04-26 2020-08-25 Forming Concepts, Inc. Power assisted stripping corner for forming concrete walls
CN108758221A (en) * 2018-07-05 2018-11-06 池州市德聚软件开发有限公司 A kind of communication equipment holder that can highly adjust
CN110259121A (en) * 2019-05-30 2019-09-20 中国一冶集团有限公司 A kind of reserved opening support mould tool

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