FR2488310A1 - PROCESS FOR MANUFACTURING TOOL FORMWORK - Google Patents

Abstract

THE INVENTION CONCERNS A PROCESS FOR MANUFACTURING TOOL FORMWORK SUCH AS: TUNNEL FORMWORK AND FORMWORK, USEFUL IN THE BUILDING. THESE FORMWORKS ARE COMPOSED BY RECTANGULAR OR SQUARE PROFILE TUBES FORMING A FRAME DESIGNED TO RECEIVE AN ADJUSTABLE AND TRANSFORMABLE COFFRETING FACE. THE MOST INTERESTING APPLICATIONS OF THIS FORMWORK ARE TUNNEL FORMWORK, EASY ADAPTABLE TO VARIOUS FLOOR SPACES AND A PRINCIPLE OF STABILIZATION OF BENCHES.

Description

- 1 - 24883 1 0

  The present invention relates to a method of manufacturing and

  formwork tool useful in the building and public works.

  generally applies to all forms and in particular to the manufacture of

  a formwork tool for the construction process of type cof-

  tunnel frage, allowing let us remember here, to form the walls at the same time

  and the floors of a building.It also applies to

  trenching boards that serve to form the walls or any other structure of a building.

  In known tunnel formwork processes, the vertical formwork panel

  cal is assembled at 900 with the horizontal shuttering panel. Such a device limits the use of the tunnel formwork to the execution of work, floors and walls forming at their intersection a right angle. In general the formwork skins

  sheet metal, so they are manufactured in the factory with precise dimensions

  Thus, standard panels must be combined to construct given works. If the work has special features, it is necessary to manufacture special panels specific to the work, panels which will no longer be usable because of their particular dimensions. .The sheet metal skins are fragile, in case of detonation, it is necessary to change the complete panel. For tunnel formwork known to date,

  it is obligatory in the event of transfer from one site to another of demons-

  ture and reassemble the formwork.It is also necessary, if the

  are different, and this is often the case, changing the ho-

  These different operations entail significant costs which

  can only be written off on a large scale.The use of

  these sheet metal shutters require that the structure to be built

  This maintenance of the metal formwork requires qualified training personnel different from that of the woodworkers who use it.

hence high management fees.

  The formwork system according to the invention makes it possible to avoid certain

  of these disadvantages.This formwork tool tunnel type conforms to the pre-

  This invention can be transported from one construction site to another without being dismantled. In fact, the overall width of a half shell at rest is 1.50 meters. The articulated arm makes it possible with the same tool busted

  floors of different litters, adapting only the side facing

  plywood and its support located above the link arm.

  The formwork principle according to the invention is a framework of

  bracing assembled in itself at an angle increases, supporting

  This system allows you to adjust the vertical

  and the horizontality of the formwork faces. This principle suggests

  As a result, there is a wider range of materials and therefore a better assortment.

  The formwork tool of the iniention envisages a skin formante against

  plated on a wooden frame, itself fixed on a metal support-

  2. This solution offers more valuable advantages.The wood is the noble material = u bdiseur.Il know the characteristics and implementation.In case dtorietion skin formante, its user can

  i immediately make the repairer sre change the damaged plate.

  It also makes it possible to adapt to the structure to be built.

  This formwork tool consists of structural tubes profiled, assem-

  Whenever possible, a part can be easily changed by its user. It is to be noted that this dismounted formwork is a reduced volume, which is appreciable, especially for the export. The flexibility of this formwork system, both for tunnel formwork and for the use of the bench and in general for all forms, will contribute

  to ininute the cost price of a construction.

  To do well co: -to take the invention, we will give by way of example,

  a description of the types of formwork tool according to the invention during

  of which will appear other characteristics. The dimensions are given only as an indication to better fix the ideas. Reference is made to the annexed drawings in which: Figure 1 shows one of: i straight tunnel, composed of several elements

  forming a framework and G'jn complex dressing.Each element of carpentry

  consists of two posts 6 bracing formed by structural tubes

  square profiles 60 X 60 X 3.20 mm. Between these two posts comes

  insert a horizontal bracing beam 7 formed of a tube profi-

  The arm is assembled at right angles to the posts 6 by means of a reinforcing plate 9. The arm 7 is assembled to the vertical support posts 2 by a stud 82 The vertical supports 2 are rectangular profiled structural tubes of 100 X 80 X 5. The horizontal support 3 formed by a rectangular shaped pipe of 180 X 80 X 5 m is assembled with the two vertical support columns 2 by a dowel

  82 threaded at each end.It is attached to the two posts of counter-

  6 This horizontal beam 3 receives at its end a right horizontal connecting arm 4, consisting of a rectangular profiled tube of 1 CX 8C X 5 mm.They are connected to each other by ur, Plujon% 32. Thus, the frame is formed forming the base of the formwork tool. Accessories are added to it. For the operation of the linkage arm hor-zcntalil was designed either a winch system 15 -3- with pulley 17, of which the cable 16 actuates a tube 14 of diameter 40 X 49 whose base slides on a guide 13, the tube 14 is replaced by a

  double-acting hydraulic cylinder with manual or electrically operated

  The tube 14 can also be replaced by a metal stay pulling or pushing to refine the adjustment of the bras.On can replace the winch 159 16, 17 by a double-acting cylinder that will control the arm 14. This cylinder will be

  parallel to the tube 13. The various posts 2 are interconnected, in part

  lower part by a 1 UPN iron of 100 X 50 X 6 serving as low stiffener.

  They are made with a 12 X UP X 80 X 45 X 6 high stiffening. The bracing posts 6 are interconnected by boards of 200 X 40 mm forming a tool box reinforced by

  8. On the stiffener arm 1 and at the foot of the posts of contravention

  6 are arranged bolts 10 of diameter 26- X 34 making office

  screw jack to allow adjustment at altitude and in line with the

  looks formant.An angle iron 11 of 150 X 150 X 15mm of 100 width

  allows the assembly of the vertical support post 2 on the bottom stiffener1.

  The horizontal link arm 4 is pierced with a hole 21 in order to allow the attachment

  between the right and left half-tunnels.These frame elements, once assembled, receive woods 19 with 80 x 80 mm section of formwork face support.Then the assembly is covered by a plastic plywood or plywood 15 to 20 mm thick. 20. The woods 19 and the skin 20 can

  be replaced by a 3 mm thick plate and omega irons

  strong.At the angle of the vertical skin and the horizontal skin, the vertical skin stops at the finished naked floor and the horizontal panel comes to stop against 22.On the top we put a flat iron running 50 X 2mm

  leaving a light smashed in the concrete. This smashed is easily reboucha -

  After the demoulding, the half-tunnel thus formed will be assembled with the other formwork wall on the other side of the wall to be built by threaded rods.

  23.On the right of these clamping rods it will be placed on a plate of

  24. It should be noted that the arm 4 will be dressed up to its end by the woods 19 and over 5 cm by the formwork face 20. The arm 5 will be dressed from the arm of the arm 4 to the half tunnel. At the formwork we put

  first the arm 4 in place.The arm 5 comes to fit on the 4.

  Figure II is a horizontal section from above of the lower part of

  of a frame element for half tunnel.

  frame consisting of the two bracing posts 6, the two

  2.On can see the adjustment cylinders 10, the swivel wheels 48 and in particular a wing of the same angle

  11 asser'blage between the vertical support 2 and the stiffener bas1.

  FIG. III is a horizontal section, viewed from above of the same structural member showing the principle of the winch. A tube welded to the part.

  holding the arm 14 slides from bottom to top or top to bottom on the guide 13.

  Figure IV is a horizontal section seen from below of a dressed structural element. Figure V shows the meeting of the right horizontal link arm 4

  and the left horizontal link arm 5.

  FIG. VI shows a view from above of a right horizontal linkage arm 4 with at its right end the system allowing assembly on the horizontal support 3.These are two angle irons of 180 X 80 X 6

  welded on the connecting arm 4 and coming from each side of the beam 3.

  Figure VII shows two half-tunnels assembled in a posi-

  formwork before concreting.We will notice the marriage of

  right horizontal 4 and left 5 connections with the hole 21 in which a gou-

  I will maintain the two arms. To fix the ideas, on the drawing the reach of the floor is 4.00 meters and the height of the wall of 2, 50meter. It should be noted that there are two holes 21 in the arm 4 and two in the arm 5 have different diameters in decreasing order in order to set up a stud having a conical shape which will ensure the blocking

  or the automatic unlocking of both arms.

  Figure VIII shows the two half-tunnels after concrete-

  26 walls and floors 25.The tool is in formwork position. The

  horizontal link arms right 4 and left 5 are uncoupled.

  Figure IX is a section on the left horizontal link arm5

  formed of two unequal angle irons 180 X 80 X 6 mm.

  Figure X is a bottom view of a horizontal link arm

  left 5 with the flat irons bonding by welding the two angle irons.

  Figure XI shows the same half-tunnels as on the

  gures 7 and 8 but with sloped walls. The framing members are the same, with only displacement of the beam assembly 3 on the

  post 6 and a single link arm 5.

  In figure XII, it is always the same material to execute a floor with double slope with vertical walls. However, a material has been added to the material on the bracing feet 6. The woods 19 are notched 28 to allow the passage horizontal link arms 4 and

  5.Two holes will be drilled to maintain the position of the arms.

  FIG. XIII shows the device chosen to set up a riser 27 on a bracing piece 6 by equal angles 27.

6P X 60 X 10 mm.

  Figure XIV is a section on a rehau-se 27 set up on

a bracing foot 6.

  Figures XV and XVI always show the same formwork tool to run two walls of different height with a floor with a single slope.To achieve this result, we put in place a riser 29 on the

  vertical support posts 2 and a riser 27 on the violating post

  6. The junction at 900 of the bracing post 6 with the horizontal bracing arm 7 will be noted in FIG. XVI. The variable angle between the vertical support posts 2 and the vertical support posts 2 will also be noted.

horizontal beams 3.

  Figure XVII defines the fixing of the wood 1- on the vertical support posts 2.This fixation is provided by a bolt 30 head

  milled 25 mm long and 10 mm in diameter.

  Figure XVIII shows the attachment of wood 19 to a beam

  horizontal support 3.This is a bolt 31 with milled head 300 mm long.

  heel and diameter 10mm which ensures the maintenance of the wood.

  Figure XIX shows the assembly seen from above of a half tunnel

  right and half shell left, not dressed by the skin formante.

  Floor span 4.00 meters, length of half shells 3.00 meters.

  Note the axis 34, positioning of the frame elements all

  1.25meter. The assembly of the horizontal link arms is clearly visible.

rates 4 and 5.

  FIG. XX is a diagrammatic view from above of the different types of assemblies of the frame members between them according to the staves

floor.

  Reading from bottom to top: a) two beams 3 = minimum span 2.80 b) two beams 3, plus one arm 5 = variable span from 2.80 to 3.40 meters c) two beams 3 plus one arm 4 and 5 = minimum range 3.80 meters d) two beams 3 plus one arm 4 and 5 = variable range from 3.80 to 4.30 me) two beams 3 plus one arm 32 and a 33 = minimum range of 4.80 meters f) two beams 3 'read an arm 32 and a 33 = variable span of 4.80 b 6.00 We recall that the beam 3 is a rectangular profiled tube of

  X 80 X 5 of 1.30 in length. The connecting arm 4 or 5 is of one

meter of 1,00 meters.

  The right horizontal link arm 32 is constituted by a profiled tube

  rectangular 180 X 80 X 5 of 2.02 meters in length.

  The left horizontal link arm 33 is constituted by two irons cor-

  of 180 X 80 X 6 of 2,00O meters in length.

  -6 - -principle schemes highlight the flexibility of this tool

  by using the same basic material, form planing

  expensive, with variable spans of 2.80 meters' 6.0 C meters, changing sim-

  the horizontal connecting arms 4 and 5, or 32 and 33, and obviously the formwork skin disposed on these arms. This work can be performed by

  woodworkers without the help of specialists and with the minimum of expenses.

  Figure XXI shows us the same principle of arm adapted to a cof-

  frage different design tool of the present invention constituted

  by omegas 36 and a formwork side 35.0n will first place

  this an angle iron with unequal wings 37 of 100 X 80 mm at the end of the formante skin.The right horizontal linkage arm 38 is constituted by a tube of 100 X 1U0O X 3.2.This arm is fixed on the formwork part by a support 44 and a flat iron 39 welded reinforcement on the omegas.For the left horizontal link arm 42 consists of two angle irons wing equal 100 X 100 X 12 mm, there is a support 43 welded to a flat iron reinforcement 39, itself welded on omegas 36. On these two arms will be available wood 41, 80 mm wide by 100 imm high, on which we nail the skin formwork 40, ie a plywood of 20 mm thick.This device can be set up whatever

  omega.position.The reinforcements to be placed on the existing formwork

they are not limiting.

  FIG. XXII is a cross-sectional view of the two horizontal connecting arms, assembled together, adapted on a formwork principle

  different from that of the present invention.

  Figure XXIII is a side view of the left link arm fitted to a metal formwork different from the formwork of the present invention. Figure XXIV is a side view of the horizontal link arm

  right fitted on a metal formwork different from the principle of

of the present invention.

  Figure XXV is a top view of the supports 43 for the arm of

  link 42 with iron reinforcement 39 to weld on omegas.

  Figure XXVI is a top view of the brackets 44 for the arm

  link 38 with the flat iron 39 reinforcement to weld on omegas.

  Figure XXVII shows us from above the formwork principle

  of the present invention, with the two half tunnels right and left.

  The half tunnel on the right has a setback in the cof-

  floor and a recess in the wall at the end of the tunnel.

  -7 - These two half shells are equipped to form in addition to the side walls,

a transverse wall.

  Figure XXVIII presents a possibility of modifying the horizontal formwork face to obtain a decorative ceiling pattern. The wooden decking 46 will support the formwork face 20.A wooden piece 45 will complete the assembly.

  Figure XXIX represents the same possibility of modifying the cof-

  frante but for a vertical formwork side, with a wood in reinforcement 47.

  Figure XXX shows the position of the swivel wheels 48 fitted to a frame member 6 and 2 of the tool form. The swivel wheels have the advantage of being able to move half a tunnel in all directions, in particular to escape the holes left in reservation in the floors. Figure XXX1 shows the same shape as Figure 339 but at rest on a storage area.La banche is stabilized by an inclination to 60.This stabilization is made possible by the fact that the foot 83 is removable.La setting foot 83, either in the stabilization position or in the working position is via a cylinder 52 double effect.On known banquettes to date, the stabilization is done by the establishment of struts or The flat iron 58 bolted on the

  two bracing posts 49 limit the foot stroke 83.

  Figure XXXII represents the same box as in Figure 33, but

  with a tilted formwork side.To obtain this performance, we sim-

  replaced the horizontal beam 49 by the beam 53. The beam 53

  adjusts the inclination of the formwork face.

  Figure XXXIII always shows us the same principle to create a formwork.Il is a case of 2.50 meters high to form concrete walls.We find the stiffening iron 1 at the bottom, on which come s assemble vertical support posts 2.These supports will receive wood 19 and upholstery 20.At the back, 625 mm we find two

  49. These posts are structural tubes for

  80 x 80 x 3.20 mm square spun yarns. They are assembled at right angles to the horizontal bracing beam 50, section 100 X 80 X 5, and the stacking beam 49 of 80 X 80 X 3.2 mm. The framework of this form is stiffened

  at the foot by the UPN 1 iron and at the top by a flat iron 51.Following

  Banche, we can add other complementary stiffeners.

  Note the cylinders 10, to adjust the altitude and the plumb of

  These panels are equipped throughout their length with a platform.

  lage 55, formed by planks of 40 mm thick plaster and 8- 27 mm thick planks 54 forming the guardrail and stiffener.The bracing beam 50 is similar to the post 2, by a stud and at the bracing pole 49 by a bolt and nut and two

  flat irons 57 giving an exact angle of 900.The top of the face

  It is capped on its entire length by a right triangle 56, to implement the concrete faster.On the banches known to date, the top of the banche stops level, to put the concrete in

  work, we must pour it between the formwork faces of the two panels.

  The system of the present invention allows a faster casting of the concrete since the right triangles form a drain at the top of the wall to build.

  In figure XXXIV is drawn the drain placed at the top of a banche.

  This drain is composed of three parts made of sheet metal 4 mm thick.

  The assembly of this throat, the first part 62 is placed on the wood 19. Then the second element 63 is installed. These two elements are fixed by a screw 61 in the wood. Before placing the third element 64, a wooden spider 65 is placed in the element 63. This third element 64 and the second 63 are fastened together by a screw 61 on the wood 65. The holes 59 and 60 are of the

oblong holes.

  Figure 35 is an elevational view of a box, foot side of

  vertigo 49.0 recognizes the boards 54 forming the bodyguard

  on the work gangway.The flat iron 58 stroke limiter or standard foot

  biliser 83 is bolted to both bracing posts

  49.Note the stud 66 allowing the maneuvering of the stabilizing foot 83.

  Figure XXXVI is an elevation view of the inside face of a banche, highlighting a principle of framing. We will notice the face

  formwork 20 nailed to the support woods 19.The counter-beam

  50 is placed between the two posts 2 and the two posts 49, while

  that the beam 49 is placed between the two posts 2 and is fixed on the

  inner tee of the bracing posts 49, by a flat iron welded at its end, thus leaving a gap for the stabilizing foot 83 when the

banche is vertical.

  Figure XXXVII shows a top view, in section, of the principal

  eg assembly of two shuttering forms or tunnel formwork.We have at each end of a formwork a flat iron 67 going from bottom to top along the whole length. Between this flat iron 67 and the vertical support post 2, we will put place a square tube of 100 X 100 X3.2 mm, serving as reinforcement of the iron 67. Between this junction post 68 and the formwork side 20, we will put a wood of 80 X 80, 69 also serving as reinforcement. will be connected to each other by a bolt and nut set up in the holes provided for this purpose.1l is to be arched on the drawing that the flat irons, on the bottom drawing passes in front of the formwork face, while on the drawing

  from the top, it sarrAete against the face formante.

  Figure XXXVIII is an elevation view of a side where a banche.Cn will notice the holes 70, allowing by bolting to assemble two dams

  71 is an assembly guide.

  In figure XXXIX is drawn an assembly guide, on the left the part

  72 female, right male 73.These two parts are machined. The male piece 73 is a cone with a rounded head, fixed on the sheet 47 and 58 by a bolt. The inside of the female piece 72, matches the volume of the cone 73. It is not closed at its left end, leaving a hole.The base 84 of

  this room is square. The free space at each corner of the square makes it possible to

  the piece on the irons 67 and 68. This device facilitates the assembly

two boards by self guidance.

  In figure XXXX are drawn the different possibilities of cof-

  The forms 74 to 77 are standard elements of 2.50 meters in height and width in width.

  the ascending order of said landmarks: 1.25 mg 1, 50 m, 2, 50 m and 5 meters.

  Non-restrictive list. These stanchions will find mainly their use in the building. The block 78 is of 5.00 m or 6.00 meters of height, with the same dimensions of width as the preceding drawn ones. These formwork 78 will be

  mainly employed in Public Works. With the principle of

  In the formwork of the present invention, forms can be made with the inclined top 79 and 80. It should be noted that the material used to make one of these bancheo is recoverable after use, to construct

  other forms. It is an important economy that formwork

known do not allow.

  Figure XXXXI is a section on a formwork of the outer sails.

  The vertical support posts 2 are doubled by a post 81, consisting of a rectangular profiled tube 10O X 80 X5.This system makes it possible to execute concrete decorative works, at the top of a wall, at the same time as the the so-called wall is cast. In the formwork of banches known to date

  the wall must first be executed, and the decorative element must be done first.

  To fix ideas, FIG. 41 represents a formwork allowing to perform

  to cut a wall, with projecting, a cornice.Il -st to note that the same

- 10 -

  nateriel allows gaelament to form a straight wall on all its heights in

  Only remove the formant skin.

  figre XXXXII represents the formwork of a wall with a part

  salient pa 'example, garúe body with in the upper part a jardiniè-

  This drawing shows mainly the flexibility of the system

  formwork described above.The columns and beams composing the

  formwork slope, in accordance with the present invention,

  to carry out a multitude of types of formwork. This material being recovered

  can be transformed at will, provides these users of the building or public works with a certain profitability of the equipment.

  tunnel-type formwork due to its mobility and

  see adapting quickly to different floor ranges, will bring

  save time, also a significant saving in the price of revi-

  building or public works.

2 24883 10

- 11 -

Claims (7)

R E V E N D I C A T IO N S   1 - Method of manufacturing formwork equipment consisting in   create, using either rectangular profiled structural tubes   res or squares, another type of irons, a metal frame des-   to be dressed to form tooling forms.   The technical characteristics of this framework are that it is formed vertically -   mounting of one or more support poles and one or two   bridging beams horizontally connected to each other by a   beam at a given height or several beams for different   These beams are assembled on the support columns of the cof-   fringed by studs.These allow the orientation of poles or   beams supporting formwork faces.   the beam (s) are fixed at right angles, either by   bolts and nuts, either by welding. Such a system allows the manufacture of   several types of formwork tool.The first formwork allows   to simultaneously form the walls and floors of a building.   This formwork is characterized by the installation of swivel arm to   each of these ends thus making it possible to adjust the width of the plane   The second formwork tool is a formwork formwork   These side panels will be equipped with a stabilizer and both putting a concrete work.   2 - Tool formwork construction for simultaneous formwork   the walls and floors of a building following the process   manufacturing device according to claim 1.This formwork tool is divi-   two elements, a left and a right of small width,   2.5 setting of Atre transported on camion.Chaque element is characterized a that it is equipped complement horizontal formwork of a left pivoting arm fitting into a right swivel arm.This device   allows to form floors of different reach with the same ma-   by modifying only the formwork side or possibly the pivoting link arms.   3 - Manufacture of a formwork tool allowing to form in the same   walls and floors of a building, in accordance with   1 and 2 and the technical characteristics of which   try to form sloped walls or sloping floors.   4 - Creation of the swivel arm, floor formwork support, - 12 -   according to the manufacturing method according to claim 1,   tered by the assembly of a left arm in a right arm.The right arm is formed by a rectangular profiled tube or possibly another   type of iron.The left arm by two angle irons with unequal wing or   Be profiled #between them by welded flat irons.These flat irons   ensure the leveling of two arms.These two arms allow the extension   of the horizontal formwork part.This system can be adapted to   different wall and floor forms of the present invention.   These two arms are fixed together by a stud shaped like a cone   allowing the locking or unlocking of said arms.   - Stabilization system of a form built according to claim 1, characterized in that the foot of the bracing pole of this formwork is removable and allows tilting   the box at 600 thus ensuring its stability. This operation is   mandated by a double-acting cylinder.   6 - Inclined cover, fixed at the top of a compliant banche   in claim 1, facilitating the use of the concrete.   -stewing opening over the entire length of the form is composed of three parts assembled overlapping each other to form a right triangle.This device can be placed on   different from those of the present invention.   7 - System of assembly of two forms # in accordance with the   1, characterized by a device installed on the lateral faces   formwork or banches.This device consists of a part   protruding in the form of a round cone rounded on the other side.   a female piece conforming to the shape of the cone with a rounded head.The conical taper allows the assembly of two forms by auto guidance.   8 - shuttering system according to claim 1, for doubling the formwork face support posts, to obtain a re-entrant surface of a portion of the formwork side allowing   to execute in one go a decorative pattern such as niche, located at the top of a wall.