EP2211001A1 - Shuttering for forming a concrete wall, group of formworks assembled to each other - Google Patents

Shuttering for forming a concrete wall, group of formworks assembled to each other Download PDF

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Publication number
EP2211001A1
EP2211001A1 EP10151236A EP10151236A EP2211001A1 EP 2211001 A1 EP2211001 A1 EP 2211001A1 EP 10151236 A EP10151236 A EP 10151236A EP 10151236 A EP10151236 A EP 10151236A EP 2211001 A1 EP2211001 A1 EP 2211001A1
Authority
EP
European Patent Office
Prior art keywords
foot
translation
centering
banche
formwork
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.)
Granted
Application number
EP10151236A
Other languages
German (de)
French (fr)
Other versions
EP2211001B1 (en
Inventor
Jacques Buysschaert
Thierry Braud
Patrick Micheneau
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.)
Sateco SA
Original Assignee
Sateco SA
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
Priority claimed from FR0950368A external-priority patent/FR2941252B1/en
Application filed by Sateco SA filed Critical Sateco SA
Publication of EP2211001A1 publication Critical patent/EP2211001A1/en
Application granted granted Critical
Publication of EP2211001B1 publication Critical patent/EP2211001B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/10—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring of elements without beams which are mounted during erection of the shuttering to brace or couple the elements
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/04—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms
    • 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
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • 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
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G2011/067—Integrated forms comprising shuttering skin, bracing or strutting arrangements, workplatforms and railings

Definitions

  • the present invention relates to a mold molding a concrete veil, of the type comprising at least one foot jack comprising a movable ground support foot.
  • Concrete wall molding panels are generally assembled next to one another and on top of one another to form a continuous, continuous flat formwork surface, for example more than four meters in height and / or of width.
  • Each upper side includes centering means relative to the next lower part, and clamping means with the same form.
  • the formwork surfaces of the panels located one above the other are thus aligned vertically with respect to each other accurately.
  • each form includes horizontal centering means and clamping with the sidewall arranged to align horizontally, precisely, the formwork surfaces.
  • the known centering and clamping means comprise a movable screw in translation provided on the lower part of each wall, cooperating with a centralizer having a threaded hole complementary to the screw and provided on the upper part of each wall.
  • the screwing of the screw in the centering device ensures both the centering and the tightening of the panels between them.
  • each board also includes screw jacks each comprising a foot having a bearing surface on the ground.
  • the feet of the foot jacks are movable between a raised position, in which the foot is located above the lower edge of the form surface, and a lowered upward position in which the foot projects downwardly from the rim bottom of the formwork surface.
  • the boards which are arranged on a lower side have their feet in raised position.
  • the lower supports resting on the ground have their feet in lowered position of raising, according to the necessary enhancement relative to the bearing surface of the ground.
  • An object of the invention is to facilitate the assembly of the panels between them.
  • the invention relates to anadohe of the aforementioned type, characterized in that the foot jack comprises centering means of the formwork with respect to a lower form, and vertical clamping means of the form against the lower side.
  • the subject of the invention is also an assembly of at least two moldings of a concrete veil comprising an upper and a lower beaker capable of being assembled one above the other, characterized in that at least one of the banches is as described above.
  • the figure 1 illustrates a molding 2 molding a concrete veil according to the invention.
  • the panel 2 is able to be assembled with an identical lower panel 2A and / or with an identical side panel 2B, to form an assembly 4 (FIG. figure 2 ) of several banches assembled with each other.
  • the formwork 2 comprises a formwork body 6, an assembly system by superposing 8 of boards 2 one above the other, and a lateral assembly system 10 of panels 2 one next to the 'other.
  • the formwork body 6 has a flat formwork surface 12 ( figure 2 ), a plurality of vertical stiffeners 14 ( figure 1 ), and two upper horizontal stiffeners 16 and lower 16 '.
  • the body 6 has a rectangular contour substantially corresponding to the contour of the form surface 12.
  • the body 6 has a flat bottom edge 18, a flat upper edge 20, and two flat side edges 22 joining the lower edge 18 and the upper edge 20 at their ends.
  • the panel 2 is considered in its usual position of use, the lower edge 18 and the upper edge 20 of the panel 2 constituting a reference horizontality, while the lateral edges 22 constitute a reference verticality .
  • the superimposition assembly system 8 comprises two foot cylinders 26.
  • the foot cylinders 26 are spaced apart horizontally and arranged at the lower edge 18 of the body 6 of the panel 2.
  • the lateral assembly system 10 comprises two lateral cylinders 28.
  • the lateral cylinders 28 are vertically spaced apart and arranged at one of the lateral edges 22.
  • the lateral assembly system 10 will be described later.
  • the panel 2 further comprises means 30 for common hydraulic actuation of the foot cylinders 26 and lateral cylinders 28.
  • the foot cylinders 26 are arranged in the respective lower corners of the panel 2, near a respective lateral edge 22.
  • the foot cylinders 26 are identical. Only one of them will be described below.
  • each foot cylinder 26 is housed in a fixed sheath 34 of the shuttering body 6, and comprises a fixed piston 36 and a movable centering and clamping foot 38 forming a cylinder around the piston 36.
  • the foot 38 is movable in translation along a vertical axis A with respect to the body 6 of the panel 2 between a lowered position ( figure 2 ), a raised position ( figure 3 ), and a plurality of intermediate positions, including an intermediate clamping position of the panels 2 against each other.
  • the lowered position corresponds to a setting position of the board 2 on the lower branch 2A, and locking of the foot 38 on the lower branch 2A, while the raised position corresponds to an inactive position of the foot 38 in which the foot 38 is returned to the sheath 34.
  • the foot 38 will be described in more detail later.
  • the sleeve 34 is in the lower horizontal rim 39. It is welded on the stiffener 16 'and on the lower edge 39.
  • the sheath 34 has a substantially tubular shape and extends vertically. It delimits a portion of the lower edge 18 of the body 6 of the panel 2.
  • the sleeve 34 opens, at its lower end 40, opposite a centering bore 42 formed in the lower stiffener 16 'and guiding the foot 38 sliding along the vertical axis A.
  • the centering bore 42 is for this purpose cylindrical axis A and circular section.
  • the sleeve 34 also has, at its upper end 44, a fixing bore 46, of axis A, in which the piston 36 is received and fixedly secured to the sleeve 34.
  • the sheath 34 delimits an internal cylindrical duct 47 of axis A in which the piston 36 and the foot 38 are received.
  • the sleeve 34 and the foot jack 26 comprise complementary locking means 48 for rotation of the foot 38 around its translation axis A.
  • These means 48 comprise a slot 49 for locking the foot 38, provided on the sheath 34, slidably receiving along the axis A a pin 50, secured to the foot 38.
  • the sleeve 34 is also provided with a protective cover 51 of the slot 49.
  • the cover 51 is disposed outside the slot 49 and seals the sheath 34 at the slot 49.
  • the cover 51 has a transparent upper zone 52 for viewing the upper position of the pin 50, and thus of the raised position of the foot 38 of the jack 26.
  • the sheath 34 and in particular the cover 51, surround the foot cylinder 26 in a sealed manner to prevent the penetration of a large quantity of dust along the foot jack 26.
  • the piston 36 comprises a rod 54 received and fixed in the fixing bore 46 of the sleeve 34 and a double-acting piston head 55.
  • the rod 54 defines two actuating fluid supply conduits 56, 58 passing through the fixing bore 46.
  • the head 55 defines two opposite piston surfaces 62, 64. The jack 26 is thus double acting.
  • the foot 38 comprises, meanwhile, a body 70 forming cylinder cylinder around the piston 36, and a base 72 of support to the ground.
  • the body 70 is hermetically closed, at its upper end, by a bottom 73A penetrated with a seal by the rod 54, and closed at its lower end by a bottom 73B.
  • the pin 50 projects radially on the bottom 73A.
  • the body 70 of the foot 38 delimits an inner cylinder surface 73 of axis A in which the piston 36 is slidably mounted along the axis A.
  • the piston 38 provides, with the bore 42 of the stiffener 16 ', the guide in sliding of the foot 38 along the axis A, between the lowered position and the raised position.
  • the supply ducts 56 and 58 respectively open into the chambers 74 and 76.
  • the selective filling of the lifting chamber 74 and of the lowering chamber 76 determines the position of the foot 38 along the axis A.
  • the body 70 of the foot 38 is received in the internal cylindrical conduit 47 of the sheath 34.
  • the body 70 delimits an outer centering surface 80 whose contour has a shape complementary to the centering bore 42 to ensure sliding guidance of the foot 38 along the axis A, relative to the body 6 of the form 2, and this reliably.
  • the centering forces transverse to the axis A exerted on the foot 38 are taken up on the centering bore 42 of the stiffener 16.
  • the outer centering surface 80 is cylindrical. In the illustrated example, its cross section is circular. As a variant, however, the contour of the surface 80 is, for example, triangular, square, rectangular, hexagonal, etc., so as to achieve rotational locking by complementarity of shape with the sheath 34.
  • the lower bottom 73B of the body 70 has a through-locking bore 82 adapted to receive a locking pin 83 provided on the lower wall 2A to lock the foot 38 on the lower wall 2A.
  • the locking bore 82 extends radially to the axis A of the body 70. It passes through the foot 38.
  • the bottom 73B also has a cam follower surface 86 adapted to guide the foot 38 in the centering bore 42 and in the lower section 2A, more particularly in a further centering bore 91 provided on the lower branch 2A.
  • the bore 91 is formed in a reinforcing plate 91 A fixed under the upper stiffener 16 of the lower panel 2A.
  • the cam follower surface 86 is located between the base 72 and the outer centering surface 80. In the example illustrated, it is frustoconical with axis A and converging downwards.
  • the base 72 has a ground bearing surface 92 defining the lower end of the foot jack 26.
  • the lower panel 2A comprises an upper part 93 comprising the upper stiffener 16, the locking pin 83, and the reinforcing plate 91 defining the centering bore 91.
  • the stiffener 16 defines a continuous upper surface of support 100 against a lower surface 102 of the lower stiffener 16 'of the upper panel 2.
  • the support provided is sealed to the flow of concrete.
  • the centering bore 91 is through and opens onto the upper surface 100 defined by the upper stiffener 16.
  • the centering bore 91 defines a centering surface 110 with a vertical axis B cooperating with the outer centering surface 80 of the foot jack 26 to position the foot 38 relative to the body 6 of the bottom panel 2A.
  • the centering surface 110 is complementary in shape to the outer centering surface 80.
  • the upper portion 93 also has a horizontal abutment pin 111 forming a stop for the base 72 and extending across the axis B.
  • the stop axis 111 is fixed relative to the body 6 of the lower panel 2A.
  • the abutment pin 111 holds the foot 38 in a locking position in which the locking pin 83 is movable in the locking bore 82.
  • the locking pin 83 is slidably mounted in two coaxial holes 83A and 83B. the upper part 83, relative to the body 6 of the box 2, along a horizontal axis C perpendicular to the axis B and the formwork surface 12.
  • the pin 83 is thus movable between a locking position of the foot jack 26 , in which the pin 83 is inserted into the locking bore 82 and blocks the translation of the foot 38 along its axis of translation A relative to the lower limb 2A, and a retracted position, in which the foot 38 can be removed from the lower side 2A.
  • the locking pin 83 protrudes out of the casing 2, and has an external actuating handle 112.
  • the spindle 83 comprises an internal rod 114 for penetrating the locking bore 82, extending inside the body of the lower sleeve 2A. Thanks to the abutment pin 111 and the rotational locking means 48 of the foot 38, the pin 83 is insertable in the blind bore 82.
  • the hydraulic actuating means 30 comprise a single hand pump 118, disposed on the body 6 of the upper casing 2, and connected to the ducts 56 and 58 for simultaneous actuation of the foot cylinders 26.
  • the lateral joining system 10 will now be described.
  • the lateral cylinders 28 are illustrated in more detail on the Figures 4 to 6 . They are identical.
  • Each lateral assembly cylinder 28 is configured to clamp the panels 2, 2B towards each other and to center the panels 2, 2B relative to each other.
  • the lateral cylinders 28, which are, in the illustrated example, provided on the left side of the panel 2 (with reference to FIG. figure 1 ), are adapted to receive a locking pin 122 secured to the other board 2B.
  • a centralizer 124 is arranged on the jack 28 so that a pull of the jack on the pin 122 ensures the insertion of the centering device 124 into two orifices or sleeves 126, 126B respectively for centering the two panels 2, 2B, up to a centered configuration of the panels 2, 2B in which the centering orifices 126, 126B are coaxial.
  • Each cylinder 28 comprises a body 128 and a rod 130 for clamping the two panels 2, 2B towards one another.
  • the rod 130 is provided for this purpose with a locking head 132 having a hole 134 for receiving the pin 122.
  • the locking head 132 is screwed to the "distal" end of the rod 130.
  • the clamping rod 130 is movable in translation along its axis D relative to the body 128 so as to clamp the panels 2, 2B towards one another.
  • the jack 28 is hooked to the box by a ring 131 threaded on the rod 130 between the centralizer 124 and the body 128, the ring 131 being hinged to a hook 131 'slidably mounted relative to the formwork body 6 along a parallel axis at the lower edge 18.
  • the cylinder 28 is thus “captive”.
  • the cylinder 28 according to the invention also has the particularity of being both screw and hydraulic.
  • the jack 28 comprises a tightening nut 136 screwed onto the rod 130 to move the rod 130 along the axis D with respect to the body 128, and comprises a piston 138 for hydraulic actuation of the rod 130.
  • the nut 136 is screwed onto a threaded portion 140 of the rod 130, at its "proximal" end.
  • the nut 136 is arranged outside the body 128.
  • the nut 136 has a bearing surface 142 on the body 128 to block the translation of the nut 136 and thus move the rod 128 in translation along the axis D when screwing the nut 136 in a direction determined.
  • the piston 138 is integral with the rod 130.
  • the body 128 defines an internal cylinder 144 of axis D forming with the piston 138 a chamber 146 for hydraulic actuation.
  • the body 128 is threaded onto the rod 130 along the axis D, sealingly to the actuating fluid.
  • the body 128 comprises at each of its ends a respective ring 147A, 147B.
  • the proximal ring 147A has a through hole 147A 'of the threaded portion 140 of the stem 130.
  • the proximal ring 147A is provided, within the port 147A', with a dirt holding member 147A " of the rod 130.
  • the distal ring 147B has a hole 147B 'for guiding the smooth part of the rod 130.
  • the distal ring 147B is provided, inside the orifice 147B', with a seal 147B "ensuring the sealing to the operating fluid of the chamber 146.
  • the chamber 146 is connected to the hydraulic actuation means 30 common to the foot cylinders 26.
  • the body 128 delimits indeed an actuating fluid supply conduit 146A opening on the chamber 146 and connected to the hand pump 118.
  • the pump 118 supplies, for example simultaneously, the chambers 146 of the two lateral cylinders 28.
  • the filling of the chamber 146 with the fluid moves the piston 138 and the rod 130 along the axis D relative to the body 128, towards the inside of the body 2.
  • the cylinder 28 is single-acting.
  • the filling of the chamber 146 moves the rod 130 in the same direction as the screwing of the nut 136, namely the clamping direction of the panels 2, 2B.
  • the centering is obtained by the penetration of the centralizer 124 in the two orifices 126, 126B corresponding.
  • the centering device 124 is threaded onto the rod 130 along the axis D. It is retained along the axis D on one side by the body 128 with the interposition of the ring 131, and on the other side by the locking head 132.
  • the tightening of the clamping rod 130 brings the head 132 closer to the body 128, and wedges the centralizer 124 between the head 132 and the ring 131.
  • the centralizer 124 is wedged between the head 132 and the body 128.
  • the centralizer 124 has two centering cylindrical surfaces 148, 148B of complementary shapes of the respective centering orifices 126, 126B.
  • the centraliser 124 has a convergent shape contour along the D axis toward the lock head 132, i.e. towards the proximal end of the stem 130, for easier penetration through the bores 126. , 126B.
  • the most distal surface 148B has a diameter smaller than the diameter of the other centering surface 148.
  • the centering surfaces 148, 148B are coaxial, so that the clamping of the rod 130 and the insertion of the centering device 124 into the resulting orifices 126, 126B provide a coaxial alignment of the centering orifices 126, 126B.
  • the latter are previously arranged horizontally on the ground, but the orientations are considered with respect to the vertical position of the board, illustrated on the figure 2 .
  • the feet 38 of the foot cylinders 26 are previously moved to their lowered position by the operation of the hand pump 118. In the lowered position, the foot 38 passes through the centering bore 42 and projects downwardly through relative to the lower edge 18 of the panel 2.
  • each foot cylinder 26 When lowering the upper branch to the lower branch, the base 72 of each foot cylinder 26 penetrates the corresponding centering bore 91 of the lower branch 2, and abuts against the abutment axis 111, as illustrated on the figure 2 .
  • the spacing between the two panels 2 is then for example between 0 and 20 mm, advantageously about 15 mm.
  • the locking pin 83 is then inserted into the locking bore 82.
  • the foot 38 is thus fixed rigidly, removably, on the lower wall 2.
  • the panel 2 and the lower panel 2A are placed against each other along their lower edge 18 and upper 20 respectively.
  • the upper and lower panels 2, 2A together define a continuous formwork surface 12.
  • the lateral edges 22 of the two panels 2, 2A are aligned.
  • the panels 2, 2A delimit a continuous formwork surface having a width and / or a height greater than or equal to 4 m.
  • the form surface 12 of each panel 2 has, for example, a width of between 2m and 3m, and a height of between 2.5m and 3.2m.
  • the jack 28 Prior to assembly, the jack 28 is in its position of the Figure 4 .
  • the rod 130 is at the end of stroke relative to the body 128, on the proximal side.
  • the operator moves the cylinder 28 to the distal side, that is to say to the other side 2B.
  • the displacement of the jack 28 is allowed by the sliding of the hook 131 'to the left ( Figure 5 ).
  • the centering device 124 passes through the centering orifice 126 and the locking head 132 enters the opposite orifice 126B of the other panel 2B.
  • a last step ( Figure 7 ) the operator actuates the pump 118 so as to fill the chamber 146 and move the rod 130 towards its distal end.
  • the displacement of the rod 130 is obtained by screwing the nut 136 against the body 128.
  • the displacement of the rod 130 blocks, in a first step, the translation of the body 128 in the opposite direction.
  • the body 128 is in fact bearing against the ring 131, itself bearing against the periphery of the centering orifice 126.
  • the two panels 2, 2B are clamped against each other and the centering device 124 inserted into the corresponding centering orifices 126, 126B so that the orifices 126 and 126B are coaxial.
  • the centerings made by the two lateral cylinders 28 ensure the centering of the two panels 2, 2B relative to each other, that is to say in particular the approximation of the edges 22 opposite contiguously and the alignment of the lower edges 18 and upper 20 respectively.
  • the panels 2, 2A, 2B delimit a continuous formwork surface having a width and / or height greater than or equal to 4 m.
  • the panels according to the invention have the advantage of allowing rapid assembly of the panels 2 between them.
  • the manufacturing cost is relatively low.
  • the foot jack 26 combines the raising functions of the panel 2 relative to the ground and the centering and clamping functions against a lower panel 2A. It is thus unnecessary to provide centralizers in addition to the foot cylinders 26.
  • the choice of having a fixed piston 36 and a movable cylinder body 70 limits the bulk of the foot jack 26 for the same centering surface.
  • the piston 36 is integral with the foot 38, the cylinder being secured to the sleeve.
  • the hydraulic actuation of the cylinders 28 facilitates the horizontal assembly of two boards 2 next to each other.
  • the time required for this assembly is reduced, compared to screw jacks without hydraulic actuation.
  • the screw jack function of the side cylinder 28 allows to actuate it in case of hydraulic failure. Its reliability is thus guaranteed.
  • the board 2 comprises in addition centering 152 specific to another type of board 2, so as to ensure compatibility with this other type of board 2.
  • centering screws 154 movably mounted in translation in a sleeve 155 fixed to the body 6 of the panel 2.
  • the translation direction E of the screws 154 is vertical and corresponds to the axis screws 154.
  • Each centering screw 154 is movable in the direction E between a high storage positon, and a low screwing position in the centraliser 152 provided on the upper part 93 of the lower panel 2A.
  • the nut 156 holds the screw 154 in its high storage position when the screw is screwed into the nut 156.
  • the sheath 155 is attached at its lower end to the lower stiffener 16 '.
  • the sheath 155 opens, at its lower end, a through bore 158 centering formed in the stiffener 16 '.
  • the bore 158 is complementary contour of the centraliser 152.
  • the bore 158 is coaxial with the screw 154 and receives the screw 154 in the low position.
  • the upper part 93 of the lower panel 2A comprises a reinforcing plate 160 arranged under the upper stiffener 16 and provided with a second centering bore 162, through, and complementary contour of the centralizer 152.
  • the centralizer 152 is able to align the two centering bores 158 and 162 and comprises for this purpose two stepped centering portions each penetrating a respective bore 158, 162, the centering portions having a complementary contour to the associated bore.
  • the centralizer 152 delimits an internal thread 152A and forms a nut with the screw 154. It is thus movable by rotation of the screw 154, between a low position set back from the centering bores 158, 162, and a high position in which the centralizer 152 enters the two bores 158 and 162 and aligns them as well.
  • the centraliser 152 is locked in rotation around the axis of its internal threading to allow its screwing with the screw 154. This locking in rotation is provided by two flats 163 bearing on the form surface 12 and the body 6 of box 2A.
  • the screw 154 is provided with a stop collar 164 adapted to bear on the sleeve 155, more particularly on the nut 156 disposed at the upper end of the sleeve 155, while that the centralizer 152 is provided with an enlarged abutment base 166 capable of resting on the reinforcing plate 160 to tighten the side panels towards one another.
  • the base 166 of the centraliser 152 also serves as a stop for the centraliser 152 in its lower position by pressing on a horizontal abutment axis 168 secured to the body 6 of the lower formwork 2A.
  • the screw 154 Before assembly of the panels 2, the screw 154 is initially in its high storage position, in the fixed nut 156.
  • the centralizer 152 is in its low position, bearing against the horizontal axis 168, and set back from the upper edge 20.
  • the screw 154 is screwed to its lower position. It comes out of the nut 156, down into the sheath 155, and is screwed into the centralizer 152 nut. Once the flange 164 bears on the nut 156 of the sleeve 155, the rotation of the screw 154 moves the centralizer 152 upwards, namely towards its insertion position in the two centering bores 158 and 162.
  • the disassembly is of course achieved by unscrewing the screw of the centering device 152, translation upwards in the sleeve 155, then screwing upwards in the nut 156 holding in the high position.
  • the centraliser 152 Once released from the screw 154, the centraliser 152 returns to its low position by the action of gravity.
  • the upper portion 93 of the panel 2 is also provided with the centralizers 152 so as to be assembled below a panel provided with screws 154.
  • FIGS. 9 and 10 illustrate a second embodiment of the Figures 1 to 7 , in which only the differences with respect to the Figures 1 to 7 will be described below, and on which like reference numerals designate like elements.
  • the foot jack 26 differs essentially from the foot jack of the figures 2 and 3 in that it is to screw.
  • the foot jack 26 comprises a threaded actuating rod 160 screwed along the axis A in a nut 162 integral with the sleeve 34.
  • the rod 160 is linked in translation to the foot 38 along the axis A and thus moves the foot 38.
  • the rod 160 is received freely in rotation and fixed in translation in a cage 164 formed by the foot 38.
  • the rod 160 has for this purpose a connecting head 166 of complementary shape of the cage 164.
  • the rod 160 comprises, outside the sheath 34, an operating head 168 for rotating the rod 160 by means of a tool.
  • Screwing and unscrewing the shaft 160 moves the foot 38 along its axis A between its lowered position and its raised position.
  • the foot jack Figures 9 and 10 has the advantage of high reliability and a relatively low manufacturing cost.
  • FIGS 11 to 16 illustrate a third embodiment of the foot jack, in which only the differences with respect to the foot jack of the Figures 9 and 10 will be described below and to which like reference numerals designate like elements.
  • the foot jack 26 according to the third embodiment essentially differs in that it comprises a centralizer 170 screwed onto the foot 38.
  • the centralizer 170 is mounted to move in translation relative to the foot 38 so that the foot 38, and in particular the base 72, can be inserted into the lower branch 2A and locked in translation in the lower section. 2A before insertion of the centering device 170 into the centering hole 91.
  • the foot 38 more particularly comprises a threaded rod 160 slidably received in the sleeve 34 along its axis A.
  • the rod 160 is, in the illustrated example, guided in sliding manner by a ring 174 fixed to the upper end 34B of the sleeve 34.
  • the rod 160 passes through the ring 174.
  • the centralizer 170 is a nut screwed onto the rod 160 along the axis A. The screwing and unscrewing of the rod 160 thus displaces the centraliser 170 in translation along the axis A with respect to the rod 160.
  • the centralizer 170 is freely mounted in translation along its axis A in the sleeve 34. It is locked in translation upwards by the ring 174, in a retracted position inside the sleeve 34 ( Figures 11 to 13 ) and locked in translation downwards by an internal shoulder 180 of the sheath 34, in a centering position ( figures 15 and 16 ).
  • the centralizer 170 is further locked in rotation in the sleeve 34, for example by complementarity of shape, for example hexagonal.
  • the centralizer 170 comprises for this purpose a rotational locking head 175, projecting radially through relative to the lower part of the centralizer 170, and housed in the sleeve 34.
  • the rotational locking is, however, alternatively obtained by other means of any suitable type. Because of this locking in rotation, the screwing and unscrewing of the rod 160 in the centralizer 170 ensures the translation of the rod 160 relative to the centralizer 170.
  • the direction of the pitch of the thread is, in the example shown, chosen so that the screwing of the rod 160 ensures the translation of the rod 160 downwards relative to the centralizer 170, and that the unscrewing of the rod 160 ensures the translation of the rod 160 upwards with respect to the centralizer 170.
  • the lower part of the centralizer 170 is provided to penetrate the bores 42 and 91 of centering and thus achieve the centering of the panels 2 and 2A relative to each other.
  • the outer surface of the lower part of the centralizer 170 is thus preferably selected cylindrical, for example circular, and of complementary shape to the bores 42 and 91.
  • the rod 160 is retained in translation along the axis A by an elastomer member 177 acting radially on the foot 38.
  • the elastomeric member 177 is arranged to press the rod 160 along part of its periphery. It has a shape of any type suitable for a radial support on the rod 160, for example a rectangular parallelepiped shape.
  • a screw 178 presses on the elastomer member 177 and thus allows, by more or less deforming the member 177, the adjustment of the friction generated by the elastomer member 177 on the foot 38.
  • the elastomeric member 177 is provided to provide sufficient friction against the action of gravity on the foot 38 and thus ensures the maintenance of the foot 38 in the raised position.
  • the translation force transmitted to the rod 160 by the centralizer 170 must be greater than the friction force applied by the elastomer member 177.
  • the tightening torque must thus be greater than a predetermined value. to ensure the relative displacement of the rod 160 and the centralizer 170.
  • the rod 160 is provided, at its upper end 160B, with an operating head 168 projecting outside the sleeve 34.
  • the friction means are provided by a member of any suitable type, for example metallic.
  • the screw 178 is replaced by a compression means of any type adapted to act on the elastomeric member 177.
  • the ground support base 72 is mounted captive and crazy at the lower end 160A of the rod 160. In a general manner, the base 72 is mounted integral in translation and free in rotation about the axis A relative to the rod 160.
  • the base 72 is mounted integral with the rod 160.
  • the foot jack 26 according to the third embodiment also differs essentially in that the blocking in translation along the axis B in the lower panel 2A is formed by a fork 190 provided for gripping the foot 38 between its branches 192 ( see figure 12 bis).
  • the fork 190 is movable between a position of insertion and withdrawal of the foot 38 ( Figures 12a and 13bis ), in which the foot 38 can be inserted freely into the lower wall 2A, and a locking position, in which the fork 190 holds the translation of the foot 38 upwards along the axis B relative to the body 6 of the wall lower 2A ( Figures 14 to 15 ).
  • the base 72 forms a shoulder 193 against the branches 192.
  • the fork 190 can be replaced by a retaining member of any suitable type cooperating with the shoulder 193.
  • the branches 192 preferably each grind a cam surface 192A cooperating with the rod 160 to guide the rod 160 between the two branches 192 (see FIG. figures 13a and 14 bis).
  • the fork 190 is, in a similar manner to the locking pin 83, mounted to move in translation in a radial direction C to the rod 160.
  • the fork 190 is, in the illustrated example, resiliently biased by a spring 194 towards the rod 160.
  • the fork 190 comprises for example a plate 196 forming the two branches 192 and delimiting between them a slot 197 whose width is substantially equal to the diameter of the rod 160.
  • the fork 190 also comprises a rod 198 slidably mounted in the body 6 of the lower panel 2A and integrally connected to the plate 196.
  • the plate 196 is housed inside the shuttering body 6 while the rod 198 is received through the body 6 and protrudes outside the body 6, so as to allow the fork 190 to be actuated by a operator, for example by means of a handle attached to the rod 198.
  • the figure 11 illustrates the foot 38 and the centralizer 170 of each of the two foot cylinders 26 in their respective raised positions.
  • the upper side 2 is close to the lower side 2A.
  • the panels 2 and 2A are for example arranged flat on the floor.
  • the centraliser 170 being in the raised position, locked in abutment against the ring 174, its translation relative to the body 6 is prevented. As a result, the foot 38 is displaced in translation relative to the body 6 towards and to the lowered position of the figure 13 .
  • the fork 190 has been moved to its position of insertion and withdrawal of the foot illustrated on the Figures 12a and 13bis by actuating the rod 198.
  • the rod 198 is, once the foot 38 introduced, released by the operator and the fork 190 moved by the spring 194 in its locking position of the foot 38 ( Figures 14 and 14bis ).
  • the fork 190 being fixed in translation along the axis B, the fork 190 blocks the translation of the foot 38 upwardly relative to the body 6 of the lower panel 2B.
  • the foot jack 26 according to the third embodiment thus has the particular advantage of allowing the locking of the foot 38 prior to the centering of the panels 2 and 2A. As a result, the spacing forces of the panels resulting from the penetration of the centering device 170 into the lower panel 2A are counteracted by the blocking of the foot 38 in the lower panels 2A.
  • the assembly instructions are also particularly simple for the operator because the foot jack 26 can be configured so that the operator must first screw the foot 38 fully and then unscrew the foot 38 to a predetermined torque Clamping.
  • the crazy assembly of the base 72 reduces the friction forces on the ground and against the fork 190.
  • the elastomer member 177 is particularly simple to manufacture and facilitates the actuation of the jack 26. It also allows more tolerance than to provide a thread in the ring 174 to retain the foot 38.
  • the fork 190 ensures, particularly thanks to the cams 192A, easy movement to its locking position. Unlike the locking pin 83, the fork 190 does not require precise positioning of the foot 38 relative to the fork 190.
  • the foot cylinder 26 according to the third embodiment is hydraulic.

Abstract

The upper form panel (2) has a foot cylinder (26) i.e. screw cylinder, with a movable foot (38) supported on ground. The cylinder has a centering unit centering the upper panel with respect to a lower form panel (2A), and a locking bore (82) locking the upper panel against the lower panel. The foot is movable in translation with respect to a body of the upper panel along a translation axis (A). The centering unit has a cylindrical outer centering surface (80) co-operating with a centering bore (91) of the lower panel and an additional centering bore (42) co-operating with the surface.

Description

La présente invention concerne une banche de moulage d'un voile en béton, du type comprenant au moins un vérin de pied comprenant un pied mobile d'appui au sol.The present invention relates to a mold molding a concrete veil, of the type comprising at least one foot jack comprising a movable ground support foot.

Les banches de moulage de voiles en béton sont généralement assemblées l'une à côté de l'autre et l'une sur l'autre pour former une surface de coffrage plane continue importante, par exemple de plus de quatre mètres de hauteur et/ou de largeur.Concrete wall molding panels are generally assembled next to one another and on top of one another to form a continuous, continuous flat formwork surface, for example more than four meters in height and / or of width.

Chaque banche supérieure comprend des moyens de centrage par rapport à la banche immédiatement inférieure, ainsi que des moyens de serrage avec cette même banche. Les surfaces de coffrage des banches situées l'une au-dessus de l'autre sont ainsi alignées verticalement l'une par rapport à l'autre de façon précise.Each upper side includes centering means relative to the next lower part, and clamping means with the same form. The formwork surfaces of the panels located one above the other are thus aligned vertically with respect to each other accurately.

De la même façon, chaque banche comprend des moyens de centrage horizontal et de serrage avec la banche disposée à côté, pour aligner horizontalement, de façon précise, les surfaces de coffrage.In the same way, each form includes horizontal centering means and clamping with the sidewall arranged to align horizontally, precisely, the formwork surfaces.

Le centrage et le serrage des banches entre elles assurent la continuité de la surface de coffrage formée.The centering and clamping of the panels together ensure the continuity of the formwork surface formed.

Les moyens de centrage et de serrage connus comprennent une vis mobile en translation prévue sur la partie inférieure de chaque banche, coopérant avec un centreur présentant un orifice fileté complémentaire de la vis et prévu sur la partie supérieure de chaque banche. Le vissage de la vis dans le centreur assure à la fois le centrage et le serrage des banches entre elles.The known centering and clamping means comprise a movable screw in translation provided on the lower part of each wall, cooperating with a centralizer having a threaded hole complementary to the screw and provided on the upper part of each wall. The screwing of the screw in the centering device ensures both the centering and the tightening of the panels between them.

De façon à rehausser les banches inférieures par rapport au sol, chaque banche comprend également des vérins de pied à vis comprenant chacun un pied présentant une surface d'appui au sol.In order to raise the lower panels to the ground, each board also includes screw jacks each comprising a foot having a bearing surface on the ground.

Les pieds des vérins de pied sont mobiles entre une position relevée, dans laquelle le pied est situé au-dessus du bord inférieur de la surface de coffrage, et une position abaissée de rehaussement dans laquelle le pied fait saillie vers le bas par rapport au bord inférieur de la surface de coffrage.The feet of the foot jacks are movable between a raised position, in which the foot is located above the lower edge of the form surface, and a lowered upward position in which the foot projects downwardly from the rim bottom of the formwork surface.

Les banches qui sont disposées sur une banche inférieure ont leurs pieds en position relevée. Les banches inférieures en appui au sol ont leurs pieds en position abaissée de rehaussement, en fonction du rehaussement nécessaire par rapport à la surface d'appui du sol.The boards which are arranged on a lower side have their feet in raised position. The lower supports resting on the ground have their feet in lowered position of raising, according to the necessary enhancement relative to the bearing surface of the ground.

Néanmoins, le centrage et le serrage des banches entre elles sont relativement longs et fastidieux.Nevertheless, the centering and tightening of the panels between them are relatively long and tedious.

Un but de l'invention est de faciliter l'assemblage des banches entre elles.An object of the invention is to facilitate the assembly of the panels between them.

A cet effet, l'invention a pour objet une banche du type précité, caractérisée en ce que le vérin de pied comprend des moyens de centrage de la banche par rapport à une banche inférieure, et des moyens de serrage vertical de la banche contre la banche inférieure.For this purpose, the invention relates to a banche of the aforementioned type, characterized in that the foot jack comprises centering means of the formwork with respect to a lower form, and vertical clamping means of the form against the lower side.

Suivant des modes particuliers de réalisation, la banche selon l'invention comporte l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou suivant l'une quelconque des combinaisons techniquement possibles :

  • le pied est mobile en translation par rapport au corps de la banche le long d'un axe de translation entre une position abaissée, une position relevée, et une position intermédiaire de serrage de la banche contre la banche inférieure, le vérin de pied comprenant également des moyens d'actionnement aptes à déplacer le pied entre la position abaissée, la position relevée et la position intermédiaire ;
  • les moyens de centrage comprennent une surface externe de centrage prévue sur le pied, la surface externe de centrage étant apte à coopérer avec un alésage de centrage prévu sur la banche inférieure pour positionner le pied par rapport à la banche inférieure ;
  • la banche comporte un alésage supplémentaire de centrage apte à coopérer avec la surface externe de centrage pour guider le pied en coulissement le long de l'axe de translation par rapport au corps de la banche, les deux alésages de centrage étant coaxiaux lorsqu'ils reçoivent la surface externe de centrage du pied ;
  • des moyens de guidage du pied dans la banche inférieure, les moyens de guidage comprenant une surface de came prévue sur l'un du pied et de la banche inférieure, apte à coopérer avec une surface de suiveur de came prévue sur l'autre du pied et de la banche inférieure pour guider le pied dans la banche inférieure ;
  • les moyens de serrage comprennent un alésage de verrouillage prévu sur le pied, l'alésage de verrouillage étant apte à recevoir une broche de verrouillage prévue sur la banche inférieure, la broche de verrouillage étant mobile entre une position d'insertion dans l'alésage de verrouillage, dans laquelle le pied est verrouillé sur la banche inférieure, et une position de retrait, dans laquelle le pied peut être retiré de la banche inférieure ;
  • le vérin de pied comprend des moyens de blocage en rotation du pied autour de son axe de translation ;
  • le pied comprend une embase d'appui au sol présentant une surface d'appui au sol, la banche inférieure comprenant une butée apte à coopérer avec la surface d'appui au sol de l'embase pour bloquer le pied par rapport à la banche inférieure dans une position de verrouillage dans laquelle la broche de verrouillage est déplaçable vers et jusqu'à la position d'insertion dans l'alésage de verrouillage ;
  • le vérin de pied est un vérin à vis ;
  • le vérin de pied est un vérin au moins partiellement hydraulique, la banche comportant des moyens d'actionnement hydraulique comprenant un actionneur hydraulique, de préférence une pompe à main, et un circuit hydraulique d'alimentation, le pied formant de préférence un cylindre de vérin hydraulique coopérant avec un piston de vérin, le vérin étant de préférence à double effet ; et
  • la banche comporte un vérin d'assemblage latéral de la banche avec une banche latérale disposée à côté, le vérin d'assemblage latéral étant de préférence actionné par le même actionneur hydraulique que le ou chaque vérin de pied ;
  • le pied est mobile en translation par rapport au corps de la banche le long d'un axe de translation entre une position abaissée, une position relevée, et une position intermédiaire de serrage de la banche contre la banche inférieure ;
  • les moyens de centrage comprennent un centreur monté mobile en translation par rapport au pied le long dudit axe de translation ;
  • le centreur est vissé sur le pied et ainsi mobile en translation par rapport au pied le long dudit axe de translation ;
  • le vérin de pied comprend des moyens de blocage en rotation du centreur autour dudit axe de translation et par rapport au corps de la banche ;
  • le centreur et le pied sont configurés de telle sorte que la rotation du pied dans un premier sens déplace le pied de la position relevée vers et jusqu'à la position abaissée et en ce que la rotation du pied dans un deuxième sens opposé assure le déplacement du centreur jusqu'à une position abaissée d'insertion dans un orifice de centrage de la banche inférieure ;
  • le centreur et le pied sont également configurés de telle sorte qu'une fois le centreur dans la position abaissée, une rotation supplémentaire du pied dans ledit deuxième sens assure le déplacement du pied en translation le long dudit axe de translation par rapport au corps de la banche, vers la position relevée et jusqu'à la position intermédiaire de serrage ;
  • le pied est monté coulissant suivant ladite direction de translation par rapport au corps de la branche ;
  • le vérin de pied comprend des moyens de frottement contre le pied pour maintenir le pied dans la position relevée à l'encontre de la gravité tout en permettant la translation du pied au-delà d'un couple prédéterminé de vissage du pied dans le centreur ;
  • la banche comporte des moyens de retenue pour permettre d'empêcher le retrait du pied d'une banche supérieure une fois inséré le pied dans la banche ; et
  • les moyens de retenue comprennent un organe de butée monté mobile en translation suivant une direction radiale à la direction d'insertion du pied, ledit organe de butée coopérant avec un épaulement du pied pour retenir le pied.
According to particular embodiments, the formwork according to the invention comprises one or more of the following characteristics, taken separately or according to any one of the technically possible combinations:
  • the foot is movable in translation relative to the body of the box along an axis of translation between a lowered position, a raised position, and an intermediate clamping position of the blade against the lower side, the foot cylinder also comprising actuating means adapted to move the foot between the lowered position, the raised position and the intermediate position;
  • the centering means comprise an outer centering surface provided on the foot, the outer centering surface being adapted to cooperate with a centering bore provided on the lower side to position the foot relative to the lower side;
  • the board has an additional centering bore adapted to cooperate with the outer centering surface for guiding the sliding foot along the axis of translation relative to the body of the box, the two centering bores being coaxial when they receive the outer centering surface of the foot;
  • foot guiding means in the lower body, the guiding means comprising a cam surface provided on one of the foot and the lower form, adapted to cooperate with a cam follower surface provided on the other of the foot and the inferior form to guide the foot in the lower part;
  • the clamping means comprise a locking bore provided on the foot, the locking bore being adapted to receive a locking pin provided on the lower form, the locking pin being movable between an insertion position in the bore of locking, in which the foot is locked on the lower side, and a retracted position, in which the foot can be removed from the lower side;
  • the foot jack comprises means for locking in rotation of the foot about its axis of translation;
  • the foot comprises a ground support base having a bearing surface on the ground, the lower side comprising a stop adapted to cooperate with the base bearing surface of the base to lock the foot relative to the lower side in a locking position in which the locking pin is movable towards and to the insertion position in the locking bore;
  • the foot cylinder is a screw jack;
  • the foot cylinder is an at least partially hydraulic jack, the board having hydraulic actuation means comprising a hydraulic actuator, preferably a hand pump, and a hydraulic supply circuit, the foot preferably forming a jack cylinder hydraulic cooperating with a piston cylinder, the cylinder being preferably double-acting; and
  • the formwork comprises a lateral assembly cylinder of the formwork with a lateral sidewall arranged next, the lateral assembly cylinder being preferably actuated by the same hydraulic actuator as the or each foot jack;
  • the foot is movable in translation relative to the body of the box along an axis of translation between a lowered position, a raised position, and an intermediate clamping position of the box against the lower side;
  • the centering means comprise a centraliser mounted movable in translation relative to the foot along said axis of translation;
  • the centralizer is screwed on the foot and thus movable in translation relative to the foot along said translation axis;
  • the foot jack comprises locking means in rotation of the centering device about said translation axis and relative to the body of the formwork;
  • the centraliser and the foot are configured so that the rotation of the foot in a first direction moves the foot from the raised position to and to the lowered position and in that the rotation of the foot in a second opposite direction ensures the movement from the centraliser to a lowered insertion position in a centering hole of the lower form;
  • the centraliser and the foot are also configured so that once the centraliser in the lowered position, an additional rotation of the foot in said second direction ensures the translation of the foot along said translation axis relative to the body of the closed, towards the raised position and to the intermediate clamping position;
  • the foot is slidably mounted in said direction of translation relative to the body of the branch;
  • the foot cylinder comprises friction means against the foot to maintain the foot in the raised position against the gravity while allowing the translation of the foot beyond a predetermined torque of screwing the foot in the centering device;
  • the banche comprises retaining means to prevent the removal of the foot of a superior banche once inserted the foot in the banche; and
  • the retaining means comprise an abutment member movable in translation in a direction radial to the direction of insertion of the foot, said stop member cooperating with a shoulder of the foot to retain the foot.

L'invention a également pour objet un ensemble d'au moins deux banches de moulage d'un voile en béton comprenant une banche supérieure et une banche inférieure aptes à être assemblées l'une au-dessus de l'autre, caractérisé en ce que au moins l'une des banches est telle que décrite ci-dessus.The subject of the invention is also an assembly of at least two moldings of a concrete veil comprising an upper and a lower beaker capable of being assembled one above the other, characterized in that at least one of the banches is as described above.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins, sur lesquels :

  • la figure 1 est une vue schématique de la face arrière d'une banche selon l'invention ;
  • la figure 2 est une vue schématique en coupe verticale d'une partie d'un ensemble comprenant deux banches selon l'invention assemblées l'une au-dessus de l'autre au moyen d'un vérin de pied, selon un premier mode de réalisation de l'invention ;
  • la figure 3 est une vue du vérin de pied en position relevée ;
  • la figure 4 est une vue schématique en coupe horizontale d'un ensemble comprenant deux banches selon l'invention disposées l'une à côté de l'autre, et un vérin de centrage et de serrage des banches adjacentes l'une contre l'autre ;
  • la figure 5 est une vue analogue à la figure 4 dans une position préalable au verrouillage du vérin latéral sur la banche adjacente ;
  • la figure 6 est une vue analogue aux figures 4 et 5 dans une position de verrouillage du vérin latéral sur la banche adjacente, préalable au centrage et au serrage des banches entre elles ;
  • la figure 7 est une vue analogue aux figures 4 à 6 illustrant les banches dans leur configuration serrée et centrée ;
  • la figure 8 est une vue schématique en coupe d'un centreur supplémentaire optionnel, selon un deuxième mode de réalisation de l'invention ;
  • la figure 9 est une vue analogue à la figure 2 d'un vérin de pied selon une variante de réalisation de l'invention ;
  • la figure 10 est une vue analogue à la figure 9 illustrant le vérin de la figure 9 en appui sur le sol ;
  • la figure 11 est une vue analogue à la figure 2 d'un vérin de pied selon un troisième mode de réalisation de l'invention ; et
  • les figures 12 à 16 sont des vues analogues à la figure 11 illustrant le centrage et le serrage des banches par le vérin de pied de la figure 11.
The invention will be better understood on reading the description which follows, given solely by way of example, and with reference to the drawings, in which:
  • the figure 1 is a schematic view of the rear face of a formwork according to the invention;
  • the figure 2 is a schematic vertical sectional view of a part of an assembly comprising two panels according to the invention assembled one above the other by means of a foot cylinder, according to a first embodiment of the invention. invention;
  • the figure 3 is a view of the foot jack in raised position;
  • the figure 4 is a schematic view in horizontal section of an assembly comprising two panels according to the invention disposed next to each other, and a jack for centering and clamping adjoining panels adjacent to each other;
  • the figure 5 is a view similar to the figure 4 in a position prior to the locking of the lateral jack on the adjacent board;
  • the figure 6 is a view similar to figures 4 and 5 in a locking position of the lateral cylinder on the adjacent side, prior to centering and tightening the panels between them;
  • the figure 7 is a view similar to Figures 4 to 6 illustrating banches in their tight and centered configuration;
  • the figure 8 is a schematic sectional view of an optional additional centralizer, according to a second embodiment of the invention;
  • the figure 9 is a view similar to the figure 2 a foot jack according to an alternative embodiment of the invention;
  • the figure 10 is a view similar to the figure 9 illustrating the cylinder of the figure 9 resting on the ground;
  • the figure 11 is a view similar to the figure 2 a foot cylinder according to a third embodiment of the invention; and
  • the Figures 12 to 16 are similar views to the figure 11 illustrating the centering and tightening of the panels by the foot cylinder of the figure 11 .

La figure 1 illustre une banche 2 de moulage d'un voile en béton selon l'invention.The figure 1 illustrates a molding 2 molding a concrete veil according to the invention.

La banche 2 est apte à être assemblée avec une banche inférieure identique 2A et/ou avec une banche latérale identique 2B, pour former un ensemble 4 (figure 2) de plusieurs banches assemblées les unes avec les autres.The panel 2 is able to be assembled with an identical lower panel 2A and / or with an identical side panel 2B, to form an assembly 4 (FIG. figure 2 ) of several banches assembled with each other.

Dans cet exemple, toutes les banches constituant cet ensemble 4 étant identiques, seule l'une d'entre elles est décrite ci-dessous. Toutes les caractéristiques décrites sont donc présentes sur chacune des banches 2, 2A et 2B.In this example, all the panels forming this set 4 being identical, only one of them is described below. All the characteristics described are therefore present on each of the panels 2, 2A and 2B.

La banche 2 comporte un corps de coffrage 6, un système d'assemblage par superposition 8 de banches 2 l'une au-dessus de l'autre, et un système d'assemblage latéral 10 de banches 2 l'une à côté de l'autre.The formwork 2 comprises a formwork body 6, an assembly system by superposing 8 of boards 2 one above the other, and a lateral assembly system 10 of panels 2 one next to the 'other.

Le corps de coffrage 6 présente une surface de coffrage plane 12 (figure 2), une pluralité de raidisseurs verticaux 14 (figure 1), et deux raidisseurs horizontaux supérieur 16 et inférieur 16'.The formwork body 6 has a flat formwork surface 12 ( figure 2 ), a plurality of vertical stiffeners 14 ( figure 1 ), and two upper horizontal stiffeners 16 and lower 16 '.

Le corps 6 a un contour rectangulaire correspondant sensiblement au contour de la surface de coffrage 12.The body 6 has a rectangular contour substantially corresponding to the contour of the form surface 12.

Le corps 6 présente un bord inférieur plat 18, un bord supérieur plat 20, et deux bords latéraux plats 22 joignant le bord inférieur 18 et le bord supérieur 20 à leurs extrémités.The body 6 has a flat bottom edge 18, a flat upper edge 20, and two flat side edges 22 joining the lower edge 18 and the upper edge 20 at their ends.

Dans tout ce qui suit, la banche 2 est considérée dans sa position usuelle d'utilisation, le bord inférieur 18 et le bord supérieur 20 de la banche 2 constituant une référence d'horizontalité, tandis que les bords latéraux 22 constituent une référence de verticalité.In all that follows, the panel 2 is considered in its usual position of use, the lower edge 18 and the upper edge 20 of the panel 2 constituting a reference horizontality, while the lateral edges 22 constitute a reference verticality .

Le système d'assemblage par superposition 8 comprend deux vérins de pied 26. Les vérins de pied 26 sont espacés entre eux horizontalement et disposés au niveau du bord inférieur 18 du corps 6 de la banche 2.The superimposition assembly system 8 comprises two foot cylinders 26. The foot cylinders 26 are spaced apart horizontally and arranged at the lower edge 18 of the body 6 of the panel 2.

Le système d'assemblage latéral 10 comprend quant à lui deux vérins latéraux 28. Les vérins latéraux 28 sont espacés entre eux verticalement et disposés au niveau de l'un des bords latéraux 22. Le système d'assemblage latéral 10 sera décrit plus loin.The lateral assembly system 10 comprises two lateral cylinders 28. The lateral cylinders 28 are vertically spaced apart and arranged at one of the lateral edges 22. The lateral assembly system 10 will be described later.

La banche 2 comprend en outre des moyens 30 d'actionnement hydraulique commun des vérins de pied 26 et des vérins latéraux 28.The panel 2 further comprises means 30 for common hydraulic actuation of the foot cylinders 26 and lateral cylinders 28.

Les vérins de pied 26 sont disposés dans les coins inférieurs respectifs de la banche 2, à proximité d'un bord latéral respectif 22.The foot cylinders 26 are arranged in the respective lower corners of the panel 2, near a respective lateral edge 22.

Les vérins de pied 26 sont identiques. Seul l'un d'entre eux sera décrit ci-dessous.The foot cylinders 26 are identical. Only one of them will be described below.

Comme illustré sur la figure 2, chaque vérin de pied 26 est logé dans un fourreau fixe 34 du corps de coffrage 6, et comprend un piston fixe 36 ainsi qu'un pied mobile 38 de centrage et de serrage formant cylindre autour du piston 36.As illustrated on the figure 2 each foot cylinder 26 is housed in a fixed sheath 34 of the shuttering body 6, and comprises a fixed piston 36 and a movable centering and clamping foot 38 forming a cylinder around the piston 36.

Le pied 38 est mobile en translation le long d'un axe vertical A par rapport au corps 6 de la banche 2 entre une position abaissée (figure 2), une position relevée (figure 3), et une pluralité de positions intermédiaires, dont une position intermédiaire de serrage des banches 2 l'une contre l'autre.The foot 38 is movable in translation along a vertical axis A with respect to the body 6 of the panel 2 between a lowered position ( figure 2 ), a raised position ( figure 3 ), and a plurality of intermediate positions, including an intermediate clamping position of the panels 2 against each other.

La position abaissée correspond à une position de mise en place de la banche 2 sur la banche inférieure 2A, et de verrouillage du pied 38 sur la banche inférieure 2A, tandis que la position relevée correspond à une position inactive du pied 38 dans laquelle le pied 38 est rentré dans le fourreau 34.The lowered position corresponds to a setting position of the board 2 on the lower branch 2A, and locking of the foot 38 on the lower branch 2A, while the raised position corresponds to an inactive position of the foot 38 in which the foot 38 is returned to the sheath 34.

Le pied 38 sera décrit plus en détail plus loin.The foot 38 will be described in more detail later.

Le fourreau 34 est dans la rive horizontale inférieure 39. Il est soudé sur le raidisseur 16' et sur la rive inférieure 39.The sleeve 34 is in the lower horizontal rim 39. It is welded on the stiffener 16 'and on the lower edge 39.

Le fourreau 34 a une forme sensiblement tubulaire et s'étend verticalement. Il délimite une partie du bord inférieur 18 du corps 6 de la banche 2.The sheath 34 has a substantially tubular shape and extends vertically. It delimits a portion of the lower edge 18 of the body 6 of the panel 2.

En outre, le fourreau 34 débouche, à son extrémité inférieure 40, en regard d'un alésage de centrage 42 ménagé dans le raidisseur inférieur 16' et guidant le pied 38 en coulissement suivant l'axe vertical A. L'alésage de centrage 42 est à cet effet cylindrique d'axe A et de section circulaire.In addition, the sleeve 34 opens, at its lower end 40, opposite a centering bore 42 formed in the lower stiffener 16 'and guiding the foot 38 sliding along the vertical axis A. The centering bore 42 is for this purpose cylindrical axis A and circular section.

Le fourreau 34 présente également, à son extrémité supérieure 44, un alésage de fixation 46, d'axe A, dans lequel le piston 36 est reçu et fixé de façon solidaire du fourreau 34.The sleeve 34 also has, at its upper end 44, a fixing bore 46, of axis A, in which the piston 36 is received and fixedly secured to the sleeve 34.

Entre les alésages 42 et 46, le fourreau 34 délimite un conduit cylindrique interne 47 d'axe A dans lequel le piston 36 et le pied 38 sont reçus.Between the bores 42 and 46, the sheath 34 delimits an internal cylindrical duct 47 of axis A in which the piston 36 and the foot 38 are received.

En outre, le fourreau 34 et le vérin de pied 26 comprennent des moyens complémentaires de blocage en rotation 48 du pied 38 autour de son axe de translation A. Ces moyens 48 comprennent une fente 49 de blocage en rotation du pied 38, prévue sur le fourreau 34, recevant en coulissement le long de l'axe A un pion 50, solidaire du pied 38.In addition, the sleeve 34 and the foot jack 26 comprise complementary locking means 48 for rotation of the foot 38 around its translation axis A. These means 48 comprise a slot 49 for locking the foot 38, provided on the sheath 34, slidably receiving along the axis A a pin 50, secured to the foot 38.

Le fourreau 34 est également muni d'un cache de protection 51 de la fente 49.The sleeve 34 is also provided with a protective cover 51 of the slot 49.

Le cache 51 est disposé à l'extérieur de la fente 49 et assure l'étanchéité du fourreau 34 au niveau de la fente 49. Le cache 51 présente une zone supérieure transparente 52 de visualisation de la position haute du pion 50, et ainsi de la position relevée du pied 38 du vérin 26.The cover 51 is disposed outside the slot 49 and seals the sheath 34 at the slot 49. The cover 51 has a transparent upper zone 52 for viewing the upper position of the pin 50, and thus of the raised position of the foot 38 of the jack 26.

Le fourreau 34, et notamment le cache 51, enveloppent le vérin de pied 26 de façon étanche pour empêcher la pénétration d'une quantité importante de poussières le long du vérin de pied 26.The sheath 34, and in particular the cover 51, surround the foot cylinder 26 in a sealed manner to prevent the penetration of a large quantity of dust along the foot jack 26.

Le piston 36 comprend une tige 54 reçue et fixée dans l'alésage de fixation 46 du fourreau 34 et une tête 55 de piston à double effet.The piston 36 comprises a rod 54 received and fixed in the fixing bore 46 of the sleeve 34 and a double-acting piston head 55.

La tige 54 délimite deux conduits d'alimentation en fluide d'actionnement 56, 58 traversant l'alésage de fixation 46. La tête 55 délimite deux surfaces opposées de piston 62, 64. Le vérin 26 est ainsi à double effet.The rod 54 defines two actuating fluid supply conduits 56, 58 passing through the fixing bore 46. The head 55 defines two opposite piston surfaces 62, 64. The jack 26 is thus double acting.

Le pied 38 comprend, quant à lui, un corps 70 formant cylindre de vérin autour du piston 36, et une embase 72 d'appui au sol. Le corps 70 est fermé hermétiquement, à son extrémité supérieure, par un fond 73A traversé à joint étanche par la tige 54, et fermé à son extrémité inférieure par un fond 73B. Le pion 50 fait saillie radialement sur le fond 73A.The foot 38 comprises, meanwhile, a body 70 forming cylinder cylinder around the piston 36, and a base 72 of support to the ground. The body 70 is hermetically closed, at its upper end, by a bottom 73A penetrated with a seal by the rod 54, and closed at its lower end by a bottom 73B. The pin 50 projects radially on the bottom 73A.

Le corps 70 du pied 38 délimite une surface interne de cylindre 73 d'axe A dans laquelle le piston 36 est monté coulissant le long de l'axe A. Le piston 38 assure, avec l'alésage 42 du raidisseur 16', le guidage en coulissement du pied 38 le long de l'axe A, entre la position abaissée et la position relevée.The body 70 of the foot 38 delimits an inner cylinder surface 73 of axis A in which the piston 36 is slidably mounted along the axis A. The piston 38 provides, with the bore 42 of the stiffener 16 ', the guide in sliding of the foot 38 along the axis A, between the lowered position and the raised position.

Le corps 70 et le piston 36 définissent ensemble deux chambres opposées de levage 74 et d'abaissement 76 du pied 38 par rapport au corps 6 de la banche 2.The body 70 and the piston 36 together define two opposite hoisting chambers 74 and lowering 76 of the foot 38 relative to the body 6 of the block 2.

Les conduits d'alimentation 56 et 58 débouchent respectivement dans les chambres 74 et 76. Le remplissage sélectif de la chambre de levage 74 et de la chambre d'abaissement 76 détermine la position du pied 38 le long de l'axe A.The supply ducts 56 and 58 respectively open into the chambers 74 and 76. The selective filling of the lifting chamber 74 and of the lowering chamber 76 determines the position of the foot 38 along the axis A.

Le corps 70 du pied 38 est reçu dans le conduit cylindrique interne 47 du fourreau 34.The body 70 of the foot 38 is received in the internal cylindrical conduit 47 of the sheath 34.

Le corps 70 délimite une surface externe de centrage 80 dont le contour a une forme complémentaire de l'alésage de centrage 42 pour assurer le guidage en coulissement du pied 38 le long de l'axe A, par rapport au corps 6 de la banche 2, et ce de façon fiable. Les efforts de centrage transversaux à l'axe A s'exerçant sur le pied 38 sont repris sur l'alésage de centrage 42 du raidisseur 16.The body 70 delimits an outer centering surface 80 whose contour has a shape complementary to the centering bore 42 to ensure sliding guidance of the foot 38 along the axis A, relative to the body 6 of the form 2, and this reliably. The centering forces transverse to the axis A exerted on the foot 38 are taken up on the centering bore 42 of the stiffener 16.

La surface externe de centrage 80 est cylindrique. Dans l'exemple illustré, sa section transversale est circulaire. En variante, cependant, le contour de la surface 80 est, par exemple, triangulaire, carré, rectangulaire, hexagonal, etc., de façon à réaliser un blocage en rotation par complémentarité de forme avec le fourreau 34.The outer centering surface 80 is cylindrical. In the illustrated example, its cross section is circular. As a variant, however, the contour of the surface 80 is, for example, triangular, square, rectangular, hexagonal, etc., so as to achieve rotational locking by complementarity of shape with the sheath 34.

En outre, le fond inférieur 73B du corps 70 présente un alésage de verrouillage traversant 82 apte à recevoir une broche de verrouillage 83 prévue sur la banche inférieure 2A pour verrouiller le pied 38 sur la banche inférieure 2A. L'alésage de verrouillage 82 s'étend radialement à l'axe A du corps 70. Il traverse le pied 38.In addition, the lower bottom 73B of the body 70 has a through-locking bore 82 adapted to receive a locking pin 83 provided on the lower wall 2A to lock the foot 38 on the lower wall 2A. The locking bore 82 extends radially to the axis A of the body 70. It passes through the foot 38.

Le fond 73B présente également une surface de suiveur de came 86 adaptée pour assurer le guidage du pied 38 dans l'alésage de centrage 42 et dans la banche inférieure 2A, plus particulièrement dans un alésage supplémentaire de centrage 91 prévu sur la banche inférieure 2A. L'alésage 91 est ménagé dans une plaque de renfort 91 A fixée sous le raidisseur supérieur 16 de la banche inférieure 2A.The bottom 73B also has a cam follower surface 86 adapted to guide the foot 38 in the centering bore 42 and in the lower section 2A, more particularly in a further centering bore 91 provided on the lower branch 2A. The bore 91 is formed in a reinforcing plate 91 A fixed under the upper stiffener 16 of the lower panel 2A.

La surface de suiveur de came 86 est située entre l'embase 72 et la surface externe de centrage 80. Dans l'exemple illustré, elle est tronconique d'axe A et convergente vers le bas.The cam follower surface 86 is located between the base 72 and the outer centering surface 80. In the example illustrated, it is frustoconical with axis A and converging downwards.

L'embase 72 présente une surface d'appui au sol 92 définissant l'extrémité inférieure du vérin de pied 26.The base 72 has a ground bearing surface 92 defining the lower end of the foot jack 26.

La banche inférieure 2A comprend une partie supérieure 93 comprenant le raidisseur supérieur 16, la broche de verrouillage 83, et la plaque de renfort 91 A délimitant l'alésage de centrage 91.The lower panel 2A comprises an upper part 93 comprising the upper stiffener 16, the locking pin 83, and the reinforcing plate 91 defining the centering bore 91.

Le raidisseur 16 définit une surface supérieure d'appui continu 100 contre une surface inférieure 102 du raidisseur inférieur 16' de la banche supérieure 2. L'appui réalisé est étanche à l'écoulement de béton.The stiffener 16 defines a continuous upper surface of support 100 against a lower surface 102 of the lower stiffener 16 'of the upper panel 2. The support provided is sealed to the flow of concrete.

L'alésage de centrage 91 est traversant et débouche sur la surface supérieure 100 définie par le raidisseur supérieur 16.The centering bore 91 is through and opens onto the upper surface 100 defined by the upper stiffener 16.

L'alésage de centrage 91 définit une surface de centrage 110 d'axe vertical B coopérant avec la surface externe de centrage 80 du vérin de pied 26 pour positionner le pied 38 par rapport au corps 6 de la banche inférieure 2A.The centering bore 91 defines a centering surface 110 with a vertical axis B cooperating with the outer centering surface 80 of the foot jack 26 to position the foot 38 relative to the body 6 of the bottom panel 2A.

La surface de centrage 110 est de forme complémentaire à la surface externe de centrage 80.The centering surface 110 is complementary in shape to the outer centering surface 80.

La partie supérieure 93 comporte également un axe de butée horizontal 111 formant butée pour l'embase 72 et s'étendant en travers de l'axe B. L'axe de butée 111 est fixe par rapport au corps 6 de la banche inférieure 2A.The upper portion 93 also has a horizontal abutment pin 111 forming a stop for the base 72 and extending across the axis B. The stop axis 111 is fixed relative to the body 6 of the lower panel 2A.

L'axe de butée 111 retient le pied 38 dans une position de verrouillage dans laquelle la broche de verrouillage 83 est déplaçable dans l'alésage de verrouillage 82. La broche de verrouillage 83 est en effet montée coulissante dans deux trous coaxiaux 83A et 83B de la partie supérieure 83, par rapport au corps 6 de la banche 2, suivant un axe horizontal C perpendiculaire à l'axe B et à la surface de coffrage 12. La broche 83 est ainsi mobile entre une position de verrouillage du vérin de pied 26, dans laquelle la broche 83 est insérée dans l'alésage de verrouillage 82 et bloque la translation du pied 38 le long de son axe de translation A par rapport à la banche inférieure 2A, et une position de retrait, dans laquelle le pied 38 peut être retiré de la banche inférieure 2A.The abutment pin 111 holds the foot 38 in a locking position in which the locking pin 83 is movable in the locking bore 82. The locking pin 83 is slidably mounted in two coaxial holes 83A and 83B. the upper part 83, relative to the body 6 of the box 2, along a horizontal axis C perpendicular to the axis B and the formwork surface 12. The pin 83 is thus movable between a locking position of the foot jack 26 , in which the pin 83 is inserted into the locking bore 82 and blocks the translation of the foot 38 along its axis of translation A relative to the lower limb 2A, and a retracted position, in which the foot 38 can be removed from the lower side 2A.

La broche de verrouillage 83 fait saillie à l'extérieur de la banche 2, et présente une poignée externe d'actionnement 112. En outre, la broche 83 comprend une tige interne 114 de pénétration de l'alésage de verrouillage 82, s'étendant à l'intérieur du corps de la banche inférieure 2A. Grâce à l'axe de butée 111 et aux moyens de blocage en rotation 48 du pied 38, la broche 83 est insérable dans l'alésage de verrouillage 82 en aveugle.The locking pin 83 protrudes out of the casing 2, and has an external actuating handle 112. In addition, the spindle 83 comprises an internal rod 114 for penetrating the locking bore 82, extending inside the body of the lower sleeve 2A. Thanks to the abutment pin 111 and the rotational locking means 48 of the foot 38, the pin 83 is insertable in the blind bore 82.

Les moyens d'actionnement hydraulique 30 comprennent une unique pompe à main 118, disposée sur le corps 6 de la banche supérieure 2, et reliée aux conduits 56 et 58 pour un actionnement simultané des vérins de pied 26.The hydraulic actuating means 30 comprise a single hand pump 118, disposed on the body 6 of the upper casing 2, and connected to the ducts 56 and 58 for simultaneous actuation of the foot cylinders 26.

Le système d'assemblage latéral 10 va maintenant être décrit.The lateral joining system 10 will now be described.

Les vérins latéraux 28 sont illustrés plus en détail sur les figures 4 à 6. Ils sont identiques.The lateral cylinders 28 are illustrated in more detail on the Figures 4 to 6 . They are identical.

Chaque vérin 28 d'assemblage latéral est configuré pour serrer les banches 2, 2B l'une vers l'autre et pour centrer les banches 2, 2B l'une par rapport à l'autre.Each lateral assembly cylinder 28 is configured to clamp the panels 2, 2B towards each other and to center the panels 2, 2B relative to each other.

Les vérins latéraux 28, qui sont, dans l'exemple illustré, prévus sur le côté gauche de la banche 2 (en référence à la figure 1), sont adaptés pour recevoir une goupille 122 de verrouillage solidaire de l'autre banche 2B.The lateral cylinders 28, which are, in the illustrated example, provided on the left side of the panel 2 (with reference to FIG. figure 1 ), are adapted to receive a locking pin 122 secured to the other board 2B.

Un centreur 124 est agencé sur le vérin 28 de telle sorte qu'une traction du vérin sur la goupille 122 assure l'insertion du centreur 124 dans deux orifices ou manchons 126, 126B respectifs de centrage des deux banches 2, 2B, jusqu'à une configuration centrée des banches 2, 2B dans laquelle les orifices 126, 126B de centrage sont coaxiaux.A centralizer 124 is arranged on the jack 28 so that a pull of the jack on the pin 122 ensures the insertion of the centering device 124 into two orifices or sleeves 126, 126B respectively for centering the two panels 2, 2B, up to a centered configuration of the panels 2, 2B in which the centering orifices 126, 126B are coaxial.

Chaque vérin 28 comporte un corps 128 et une tige 130 de serrage des deux banches 2, 2B l'une vers l'autre. La tige 130 est à cet effet munie d'une tête 132 de verrouillage présentant un orifice 134 de réception de la goupille 122.Each cylinder 28 comprises a body 128 and a rod 130 for clamping the two panels 2, 2B towards one another. The rod 130 is provided for this purpose with a locking head 132 having a hole 134 for receiving the pin 122.

La tête 132 de verrouillage est vissée à l'extrémité « distale » de la tige 130.The locking head 132 is screwed to the "distal" end of the rod 130.

La tige 130 de serrage est mobile en translation le long de son axe D par rapport au corps 128 de façon à serrer les banches 2, 2B l'une vers l'autre.The clamping rod 130 is movable in translation along its axis D relative to the body 128 so as to clamp the panels 2, 2B towards one another.

Le vérin 28 est accroché à la banche par un anneau 131 enfilé sur la tige 130 entre le centreur 124 et le corps 128, l'anneau 131 étant articulé à un crochet 131' monté coulissant par rapport au corps de coffrage 6 suivant un axe parallèle au bord inférieur 18. Le vérin 28 est ainsi « imperdable ».The jack 28 is hooked to the box by a ring 131 threaded on the rod 130 between the centralizer 124 and the body 128, the ring 131 being hinged to a hook 131 'slidably mounted relative to the formwork body 6 along a parallel axis at the lower edge 18. The cylinder 28 is thus "captive".

Le vérin 28 selon l'invention présente en outre la particularité d'être à la fois à vis et hydraulique.The cylinder 28 according to the invention also has the particularity of being both screw and hydraulic.

Le vérin 28 comprend un écrou 136 de serrage vissé sur la tige 130 pour déplacer la tige 130 le long de l'axe D par rapport au corps 128, et comprend un piston 138 d'actionnement hydraulique de la tige 130.The jack 28 comprises a tightening nut 136 screwed onto the rod 130 to move the rod 130 along the axis D with respect to the body 128, and comprises a piston 138 for hydraulic actuation of the rod 130.

L'écrou 136 est vissé sur une partie filetée 140 de la tige 130, à son extrémité « proximale ». L'écrou 136 est agencé à l'extérieur du corps 128.The nut 136 is screwed onto a threaded portion 140 of the rod 130, at its "proximal" end. The nut 136 is arranged outside the body 128.

L'écrou 136 présente une surface 142 d'appui sur le corps 128 pour bloquer la translation de l'écrou 136 et déplacer ainsi la tige 128 en translation le long de l'axe D lors du vissage de l'écrou 136 dans un sens déterminé.The nut 136 has a bearing surface 142 on the body 128 to block the translation of the nut 136 and thus move the rod 128 in translation along the axis D when screwing the nut 136 in a direction determined.

Le dévissage de l'écrou 136 dans le sens opposé espace l'écrou 136 du corps 128 et libère ainsi la translation de la tige 130.Unscrewing the nut 136 in the opposite direction space the nut 136 of the body 128 and thus releases the translation of the rod 130.

Le piston 138 est solidaire de la tige 130.The piston 138 is integral with the rod 130.

Le corps 128 définit un cylindre interne 144 d'axe D formant avec le piston 138 une chambre 146 d'actionnement hydraulique. Le corps 128 est enfilé sur la tige 130 le long de l'axe D, de façon étanche au fluide d'actionnement.The body 128 defines an internal cylinder 144 of axis D forming with the piston 138 a chamber 146 for hydraulic actuation. The body 128 is threaded onto the rod 130 along the axis D, sealingly to the actuating fluid.

Le corps 128 comprend à chacune de ses extrémités une bague 147A, 147B respective.The body 128 comprises at each of its ends a respective ring 147A, 147B.

La bague proximale 147A présente un orifice de passage 147A' de la partie filetée 140 de la tige 130. La bague proximale 147A est munie, à l'intérieur de l'orifice 147A', d'un organe 147A" de retenue de saletés autour de la tige 130.The proximal ring 147A has a through hole 147A 'of the threaded portion 140 of the stem 130. The proximal ring 147A is provided, within the port 147A', with a dirt holding member 147A " of the rod 130.

La bague distale 147B présente un orifice 147B' de guidage de la partie lisse de la tige 130. La bague distale 147B est munie, à l'intérieur de l'orifice 147B', d'un joint d'étanchéité 147B" assurant l'étanchéité au fluide d'actionnement de la chambre 146.The distal ring 147B has a hole 147B 'for guiding the smooth part of the rod 130. The distal ring 147B is provided, inside the orifice 147B', with a seal 147B "ensuring the sealing to the operating fluid of the chamber 146.

La chambre 146 est reliée aux moyens d'actionnement hydraulique 30 communs aux vérins de pied 26. Le corps 128 délimite en effet un conduit 146A d'alimentation en fluide d'actionnement débouchant sur la chambre 146 et relié à la pompe à main 118.The chamber 146 is connected to the hydraulic actuation means 30 common to the foot cylinders 26. The body 128 delimits indeed an actuating fluid supply conduit 146A opening on the chamber 146 and connected to the hand pump 118.

La pompe 118 alimente par exemple de façon simultanée les chambres 146 des deux vérins latéraux 28.The pump 118 supplies, for example simultaneously, the chambers 146 of the two lateral cylinders 28.

Le remplissage de la chambre 146 par le fluide déplace le piston 138 et la tige 130 le long de l'axe D par rapport au corps 128, vers l'intérieur de la banche 2.The filling of the chamber 146 with the fluid moves the piston 138 and the rod 130 along the axis D relative to the body 128, towards the inside of the body 2.

Dans l'exemple illustré, le vérin 28 est à simple effet. Le remplissage de la chambre 146 déplace la tige 130 dans le même sens que le vissage de l'écrou 136, à savoir le sens de serrage des banches 2, 2B.In the example shown, the cylinder 28 is single-acting. The filling of the chamber 146 moves the rod 130 in the same direction as the screwing of the nut 136, namely the clamping direction of the panels 2, 2B.

Le centrage est obtenu par la pénétration du centreur 124 dans les deux orifices 126, 126B correspondants.The centering is obtained by the penetration of the centralizer 124 in the two orifices 126, 126B corresponding.

Le centreur 124 est enfilé sur la tige 130 le long de l'axe D. Il est retenu le long de l'axe D d'un côté par le corps 128 avec interposition de l'anneau 131, et de l'autre côté par la tête 132 de verrouillage.The centering device 124 is threaded onto the rod 130 along the axis D. It is retained along the axis D on one side by the body 128 with the interposition of the ring 131, and on the other side by the locking head 132.

Le serrage de la tige de serrage 130 rapproche la tête 132 du corps 128, et coince le centreur 124 entre la tête 132 et l'anneau 131. Dans une variante où l'anneau 131 et le crochet 131' sont absents ou disposés de l'autre côté du corps 128, le centreur 124 est coincé entre la tête 132 et le corps 128.The tightening of the clamping rod 130 brings the head 132 closer to the body 128, and wedges the centralizer 124 between the head 132 and the ring 131. In a variant where the ring 131 and the hook 131 'are absent or arranged on the other side of the body 128, the centralizer 124 is wedged between the head 132 and the body 128.

Le centreur 124 présente deux surfaces cylindriques 148, 148B de centrage, de formes complémentaires des orifices respectifs 126, 126B de centrage.The centralizer 124 has two centering cylindrical surfaces 148, 148B of complementary shapes of the respective centering orifices 126, 126B.

Le centreur 124 a un contour de forme convergente le long de l'axe D vers la tête de verrouillage 132, c'est-à-dire vers l'extrémité proximale de la tige 130, pour une pénétration plus facile à travers les alésages 126, 126B.The centraliser 124 has a convergent shape contour along the D axis toward the lock head 132, i.e. towards the proximal end of the stem 130, for easier penetration through the bores 126. , 126B.

La surface 148B la plus distale a un diamètre inférieur au diamètre de l'autre surface de centrage 148.The most distal surface 148B has a diameter smaller than the diameter of the other centering surface 148.

Les surfaces de centrage 148, 148B sont coaxiales, de telle sorte que le serrage de la tige 130 et l'insertion du centreur 124 dans les orifices 126, 126B qui en résulte, assurent un alignement coaxial des orifices de centrage 126, 126B.The centering surfaces 148, 148B are coaxial, so that the clamping of the rod 130 and the insertion of the centering device 124 into the resulting orifices 126, 126B provide a coaxial alignment of the centering orifices 126, 126B.

L'assemblage de banches 2 selon l'invention entre elles va maintenant être décrit.The assembly of panels 2 according to the invention between them will now be described.

Pour un assemblage facile des banches 2, ces dernières sont préalablement disposées à l'horizontale sur le sol, mais les orientations sont considérées par rapport à la position verticale de la banche, illustrée sur la figure 2.For an easy assembly of the boards 2, the latter are previously arranged horizontally on the ground, but the orientations are considered with respect to the vertical position of the board, illustrated on the figure 2 .

Les pieds 38 des vérins de pied 26 sont préalablement déplacés jusqu'à leur position abaissée par l'actionnement de la pompe à main 118. Dans la position abaissée, le pied 38 traverse l'alésage de centrage 42 et fait saillie vers le bas par rapport au bord inférieur 18 de la banche 2.The feet 38 of the foot cylinders 26 are previously moved to their lowered position by the operation of the hand pump 118. In the lowered position, the foot 38 passes through the centering bore 42 and projects downwardly through relative to the lower edge 18 of the panel 2.

Lors de l'abaissement de la banche supérieure vers la banche inférieure, l'embase 72 de chaque vérin de pied 26 pénètre l'alésage de centrage 91 correspondant de la banche inférieure 2, et vient en butée contre l'axe de butée 111, comme illustré sur la figure 2.When lowering the upper branch to the lower branch, the base 72 of each foot cylinder 26 penetrates the corresponding centering bore 91 of the lower branch 2, and abuts against the abutment axis 111, as illustrated on the figure 2 .

L'espacement entre les deux banches 2 est alors par exemple compris entre 0 et 20 mm, avantageusement environ 15 mm.The spacing between the two panels 2 is then for example between 0 and 20 mm, advantageously about 15 mm.

Dans cette position, le centrage des deux banches 2 l'une par rapport à l'autre est obtenu par l'alignement, au moyen de la surface externe de centrage 80, de l'alésage de centrage 42 du fourreau 34 avec l'alésage de centrage 91 de la banche inférieure 2.In this position, the centering of the two panels 2 relative to each other is obtained by alignment, by means of the outer surface of centering 80, of the centering bore 42 of the sleeve 34 with the centering bore 91 of the lower panel 2.

La broche de verrouillage 83 est ensuite insérée dans l'alésage de verrouillage 82.The locking pin 83 is then inserted into the locking bore 82.

Tout mouvement du pied 38 par rapport à la banche inférieure 2 est alors empêché. Le pied 38 est ainsi fixé rigidement, de façon amovible, sur la banche inférieure 2.Any movement of the foot 38 relative to the lower branch 2 is then prevented. The foot 38 is thus fixed rigidly, removably, on the lower wall 2.

L'utilisateur actionne à nouveau la pompe à main 118 pour déplacer le pied 38 vers et jusqu'à la position intermédiaire de serrage.The user again actuates the hand pump 118 to move the foot 38 to and to the intermediate clamping position.

Dans la position intermédiaire de serrage, la banche 2 et la banche inférieure 2A sont accolées l'une contre l'autre le long de leur bord inférieur 18 et supérieur 20 respectif.In the intermediate clamping position, the panel 2 and the lower panel 2A are placed against each other along their lower edge 18 and upper 20 respectively.

Une fois le centrage et le serrage assurés par les deux vérins de pied 26, les banches inférieure et supérieure 2, 2A délimitent ensemble une surface de coffrage continue 12. Les bords latéraux 22 des deux banches 2, 2A sont alignés.Once centering and tightening ensured by the two foot cylinders 26, the upper and lower panels 2, 2A together define a continuous formwork surface 12. The lateral edges 22 of the two panels 2, 2A are aligned.

Ainsi assemblées entre elles, les banches 2, 2A délimitent une surface continue de coffrage ayant une largeur et/ou une hauteur supérieure ou égale à 4 m. La surface de coffrage 12 de chaque banche 2 a, par exemple, une largeur comprise entre 2m et 3m, et une hauteur comprise entre 2,5m et 3,2m.Thus assembled together, the panels 2, 2A delimit a continuous formwork surface having a width and / or a height greater than or equal to 4 m. The form surface 12 of each panel 2 has, for example, a width of between 2m and 3m, and a height of between 2.5m and 3.2m.

L'assemblage latéral des banches 2, 2B va maintenant être décrit, en référence aux Figures 4 à 7.The lateral assembly of the panels 2, 2B will now be described, with reference to the Figures 4 to 7 .

Préalablement à l'assemblage, le vérin 28 est dans sa position de la Figure 4. La tige 130 est en fin de course par rapport au corps 128, du côté proximal.Prior to assembly, the jack 28 is in its position of the Figure 4 . The rod 130 is at the end of stroke relative to the body 128, on the proximal side.

Pour l'assemblage, l'opérateur déplace le vérin 28 vers le côté distal, c'est-à-dire vers l'autre banche 2B. Le déplacement du vérin 28 est permis par le coulissement du crochet 131' vers la gauche (Figure 5). Lors de cette opération, le centreur 124 traverse l'orifice de centrage 126 et la tête de verrouillage 132 pénètre dans l'orifice opposé 126B de l'autre banche 2B.For assembly, the operator moves the cylinder 28 to the distal side, that is to say to the other side 2B. The displacement of the jack 28 is allowed by the sliding of the hook 131 'to the left ( Figure 5 ). During this operation, the centering device 124 passes through the centering orifice 126 and the locking head 132 enters the opposite orifice 126B of the other panel 2B.

L'opérateur pousse ensuite la tige 130 de serrage vers la gauche, c'est-à-dire vers son extrémité distale, de façon à pouvoir faire pénétrer la goupille 122 dans l'orifice de réception 134 de la tête 132. La goupille 122, une fois insérée, bloque alors la translation de la tige 130 par rapport à l'autre banche 2B (Figure 6).The operator then pushes the clamping rod 130 to the left, that is to say towards its distal end, so that the pin 122 can penetrate into the receiving orifice 134 of the head 132. The pin 122 once inserted, then blocks the translation of the rod 130 relative to the other wall 2B ( Figure 6 ).

Lors d'une dernière étape (Figure 7), l'opérateur actionne la pompe 118 de façon à remplir la chambre 146 et à déplacer la tige 130 vers son extrémité distale. En variante, notamment en cas de panne hydraulique, le déplacement de la tige 130 est obtenu par vissage de l'écrou 136 contre le corps 128.In a last step ( Figure 7 ), the operator actuates the pump 118 so as to fill the chamber 146 and move the rod 130 towards its distal end. As a variant, especially in the event of a hydraulic failure, the displacement of the rod 130 is obtained by screwing the nut 136 against the body 128.

Le déplacement de la tige 130 bloque, dans un premier temps, la translation du corps 128 dans le sens opposé. Le corps 128 vient en effet en appui contre l'anneau 131, lui-même en appui contre le pourtour de l'orifice de centrage 126.The displacement of the rod 130 blocks, in a first step, the translation of the body 128 in the opposite direction. The body 128 is in fact bearing against the ring 131, itself bearing against the periphery of the centering orifice 126.

A ce stade, la translation le long de l'axe D de la tige 130 par rapport à l'autre banche 2B est bloquée et la translation du corps 128 le long de l'axe D vers ladite autre banche 2B par rapport à la banche 2 est bloquée, si bien qu'un déplacement supplémentaire de la tige 130 vers son extrémité proximale entraîne le serrage des deux banches 2, 2B l'une vers l'autre jusqu'à la configuration centrée illustrée sur la Figure 7.At this stage, the translation along the axis D of the rod 130 relative to the other wall 2B is blocked and the translation of the body 128 along the axis D to said other wall 2B relative to the form 2 is blocked, so that an additional displacement of the rod 130 towards its proximal end causes the two ribs 2, 2B to be clamped towards each other until the centered configuration illustrated on FIG. Figure 7 .

Dans la configuration centrée, les deux banches 2, 2B sont serrées l'une contre l'autre et le centreur 124 inséré dans les orifices 126, 126B correspondants de centrage de telle sorte que les orifices 126 et 126B sont coaxiaux. Les centrages réalisées par les deux vérins latéraux 28 assurent le centrage des deux banches 2, 2B l'une par rapport à l'autre, c'est-à-dire notamment le rapprochement des bords 22 opposés de façon jointive et l'alignement des bords inférieurs 18 et supérieurs 20 respectifs.In the centered configuration, the two panels 2, 2B are clamped against each other and the centering device 124 inserted into the corresponding centering orifices 126, 126B so that the orifices 126 and 126B are coaxial. The centerings made by the two lateral cylinders 28 ensure the centering of the two panels 2, 2B relative to each other, that is to say in particular the approximation of the edges 22 opposite contiguously and the alignment of the lower edges 18 and upper 20 respectively.

Ainsi assemblées entre elles, les banches 2, 2A, 2B délimitent une surface continue de coffrage ayant une largeur et/ou une hauteur supérieure ou égale à 4 m.Thus assembled together, the panels 2, 2A, 2B delimit a continuous formwork surface having a width and / or height greater than or equal to 4 m.

Les banches selon l'invention présentent l'avantage de permettre un assemblage rapide des banches 2 entre elles.The panels according to the invention have the advantage of allowing rapid assembly of the panels 2 between them.

En outre, le coût de fabrication est relativement faible. En effet, le vérin de pied 26 combine les fonctions de rehaussement de la banche 2 par rapport au sol et les fonctions de centrage et de serrage contre une banche inférieure 2A. Il est ainsi inutile de prévoir des centreurs en supplément des vérins de pied 26.In addition, the manufacturing cost is relatively low. Indeed, the foot jack 26 combines the raising functions of the panel 2 relative to the ground and the centering and clamping functions against a lower panel 2A. It is thus unnecessary to provide centralizers in addition to the foot cylinders 26.

Le choix d'avoir un piston 36 fixe et un corps de cylindre 70 mobile limite l'encombrement du vérin de pied 26 pour une même surface de centrage. En variante, le piston 36 est solidaire du pied 38, le cylindre étant solidaire du fourreau.The choice of having a fixed piston 36 and a movable cylinder body 70 limits the bulk of the foot jack 26 for the same centering surface. Alternatively, the piston 36 is integral with the foot 38, the cylinder being secured to the sleeve.

Pour ce qui concerne les vérins latéraux 28, l'actionnement hydraulique des vérins 28 facilite l'assemblage horizontal de deux banches 2 l'une à côté de l'autre. En outre, le temps nécessaire à cet assemblage est réduit, par rapport à des vérins à vis dépourvus d'actionnement hydraulique.With regard to the lateral cylinders 28, the hydraulic actuation of the cylinders 28 facilitates the horizontal assembly of two boards 2 next to each other. In addition, the time required for this assembly is reduced, compared to screw jacks without hydraulic actuation.

La fonction de vérin à vis du vérin latéral 28 permet de l'actionner en cas de panne hydraulique. Sa fiabilité est ainsi garantie.The screw jack function of the side cylinder 28 allows to actuate it in case of hydraulic failure. Its reliability is thus guaranteed.

L'alimentation des vérins de pied 26 et des vérins latéraux 28 par des mêmes moyens d'actionnement hydraulique 30, et notamment par une même pompe à main 118, réduit le coût de fabrication et le poids de la banche.Feeding foot cylinders 26 and side cylinders 28 by the same hydraulic actuating means 30, and in particular by the same hand pump 118, reduces the manufacturing cost and the weight of the formwork.

Il est à noter que la banche selon l'invention est prévue pour être assemblée avec une banche identique, étant entendu que la banche est également propre à être assemblée avec d'autres types de banches compatibles.It should be noted that the formwork according to the invention is intended to be assembled with an identical form, it being understood that the form is also suitable for being assembled with other types of compatible boards.

Dans une variante de réalisation illustrée sur la figure 8, la banche 2 comporte en supplément des centreurs 152 spécifiques à un autre type de banche 2, de façon à assurer la compatibilité avec cet autre type de banche 2.In an embodiment variant illustrated on the figure 8 , the board 2 comprises in addition centering 152 specific to another type of board 2, so as to ensure compatibility with this other type of board 2.

Sur la partie inférieure des banches 2, il est alors prévu des vis de centrage 154 montées mobiles en translation dans un fourreau 155 fixé au corps 6 de la banche 2. La direction de translation E des vis 154 est verticale et correspond à l'axe des vis 154.On the lower part of the panels 2, it is then provided with centering screws 154 movably mounted in translation in a sleeve 155 fixed to the body 6 of the panel 2. The translation direction E of the screws 154 is vertical and corresponds to the axis screws 154.

Chaque vis de centrage 154 est mobile suivant la direction E entre une positon haute de rangement, et une position basse de vissage dans le centreur 152 prévu sur la partie supérieure 93 de la banche inférieure 2A.Each centering screw 154 is movable in the direction E between a high storage positon, and a low screwing position in the centraliser 152 provided on the upper part 93 of the lower panel 2A.

Le fourreau 155 à son extrémité supérieure, un écrou fixe 156 de filetage complémentaire de la vis 154. L'écrou 156 maintient la vis 154 dans sa position haute de rangement lorsque la vis est vissée dans l'écrou 156.The sheath 155 at its upper end, a fixed nut 156 of additional thread of the screw 154. The nut 156 holds the screw 154 in its high storage position when the screw is screwed into the nut 156.

Le fourreau 155 est fixé, à son extrémité inférieure, sur le raidisseur inférieur 16'. Le fourreau 155 débouche, à son extrémité inférieure, sur un alésage traversant 158 de centrage, ménagé dans le raidisseur 16'. L'alésage 158 est de contour complémentaire du centreur 152. L'alésage 158 est coaxial à la vis 154 et reçoit la vis 154 en position basse.The sheath 155 is attached at its lower end to the lower stiffener 16 '. The sheath 155 opens, at its lower end, a through bore 158 centering formed in the stiffener 16 '. The bore 158 is complementary contour of the centraliser 152. The bore 158 is coaxial with the screw 154 and receives the screw 154 in the low position.

La partie supérieure 93 de la banche inférieure 2A comprend quant à elle une plaque de renfort 160 agencée sous le raidisseur supérieur 16 et munie d'un deuxième alésage de centrage 162, traversant, et de contour complémentaire du centreur 152.The upper part 93 of the lower panel 2A comprises a reinforcing plate 160 arranged under the upper stiffener 16 and provided with a second centering bore 162, through, and complementary contour of the centralizer 152.

Le centreur 152 est apte à aligner les deux alésages de centrage 158 et 162 et comprend à cet effet deux portions de centrage étagées pénétrant chacune un alésage respectif 158, 162, les portions de centrage ayant un contour complémentaire à l'alésage associé.The centralizer 152 is able to align the two centering bores 158 and 162 and comprises for this purpose two stepped centering portions each penetrating a respective bore 158, 162, the centering portions having a complementary contour to the associated bore.

Le centreur 152 délimite un filetage interne 152A et forme écrou avec la vis 154. Il est ainsi déplaçable par rotation de la vis 154, entre une position basse en retrait des alésages de centrage 158, 162, et une position haute dans laquelle le centreur 152 pénètre dans les deux alésages 158 et 162 et les aligne ainsi.The centralizer 152 delimits an internal thread 152A and forms a nut with the screw 154. It is thus movable by rotation of the screw 154, between a low position set back from the centering bores 158, 162, and a high position in which the centralizer 152 enters the two bores 158 and 162 and aligns them as well.

Le centreur 152 est bloqué en rotation autour de l'axe de son filetage interne pour permettre son vissage avec la vis 154. Ce blocage en rotation est assuré par deux méplats 163 d'appui sur la surface de coffrage 12 et sur le corps 6 de la banche 2A.The centraliser 152 is locked in rotation around the axis of its internal threading to allow its screwing with the screw 154. This locking in rotation is provided by two flats 163 bearing on the form surface 12 and the body 6 of box 2A.

Pour le serrage des banches 2 et 2A entre elles, la vis 154 est munie d'une collerette de butée 164 propre à prendre appui sur le fourreau 155, plus particulièrement sur l'écrou 156 disposé à l'extrémité supérieure du fourreau 155, tandis que le centreur 152 est muni d'une base élargie de butée 166 propre à prendre appui sur la plaque de renfort 160 pour serrer les banches l'une vers l'autre.For the tightening of the panels 2 and 2A together, the screw 154 is provided with a stop collar 164 adapted to bear on the sleeve 155, more particularly on the nut 156 disposed at the upper end of the sleeve 155, while that the centralizer 152 is provided with an enlarged abutment base 166 capable of resting on the reinforcing plate 160 to tighten the side panels towards one another.

La base 166 du centreur 152 sert également de butée du centreur 152 dans sa position basse par appui sur un axe horizontal de butée 168 solidaire du corps 6 de la banche inférieure 2A.The base 166 of the centraliser 152 also serves as a stop for the centraliser 152 in its lower position by pressing on a horizontal abutment axis 168 secured to the body 6 of the lower formwork 2A.

Le fonctionnement de l'ensemble vis 154 / centreur 152 va maintenant être décrit.The operation of the screw 154 / centraliser 152 will now be described.

Avant assemblage des banches 2, la vis 154 est initialement dans sa position haute de rangement, dans l'écrou fixe 156. Le centreur 152 est dans sa position basse, en appui contre l'axe horizontal 168, et en retrait par rapport au bord supérieur 20.Before assembly of the panels 2, the screw 154 is initially in its high storage position, in the fixed nut 156. The centralizer 152 is in its low position, bearing against the horizontal axis 168, and set back from the upper edge 20.

Une fois les banches disposées l'une au dessus de l'autre, la vis 154 est vissée vers sa position basse. Elle sort de l'écrou 156, descend dans le fourreau 155, puis se visse dans le centreur 152 formant écrou. Une fois la collerette 164 en appui sur l'écrou 156 de fourreau 155, la rotation de la vis 154 déplace le centreur 152 vers le haut, à savoir vers sa position d'insertion dans les deux alésages de centrage 158 et 162.Once the panels arranged one above the other, the screw 154 is screwed to its lower position. It comes out of the nut 156, down into the sheath 155, and is screwed into the centralizer 152 nut. Once the flange 164 bears on the nut 156 of the sleeve 155, the rotation of the screw 154 moves the centralizer 152 upwards, namely towards its insertion position in the two centering bores 158 and 162.

Une fois la base 166 en butée contre la plaque 160, les deux alésages 158 et 162 sont coaxiaux. Le centrage est réalisé. Le vissage supplémentaire de la vis 154 induit un serrage supplémentaire des banches 2, pour une bonne étanchéité de la surface de coffrage 12 à l'écoulement de béton.Once the base 166 abuts against the plate 160, the two bores 158 and 162 are coaxial. The centering is achieved. The additional screwing of the screw 154 induces additional tightening of the panels 2, for a good seal of the shuttering surface 12 to the concrete flow.

Le désassemblage est bien entendu réalisé par dévissage de la vis du centreur 152, translation vers le haut dans le fourreau 155, puis vissage vers le haut dans l'écrou 156 de maintien en position haute.The disassembly is of course achieved by unscrewing the screw of the centering device 152, translation upwards in the sleeve 155, then screwing upwards in the nut 156 holding in the high position.

Une fois libéré de la vis 154, le centreur 152 revient dans sa position basse par l'action de la gravité.Once released from the screw 154, the centraliser 152 returns to its low position by the action of gravity.

Il est à noter que la partie supérieure 93 de la banche 2 est également munie des centreurs 152 de façon à pouvoir être assemblée en dessous d'une banche munie des vis 154.It should be noted that the upper portion 93 of the panel 2 is also provided with the centralizers 152 so as to be assembled below a panel provided with screws 154.

Les figures 9 et 10 illustrent un deuxième mode de réalisation de la banche des figures 1 à 7, dans lequel seules les différences par rapport à la banche des figures 1 à 7 seront décrites ci-dessous, et sur lesquelles des numéros de référence identiques désignent des éléments analogues.The Figures 9 and 10 illustrate a second embodiment of the Figures 1 to 7 , in which only the differences with respect to the Figures 1 to 7 will be described below, and on which like reference numerals designate like elements.

Le vérin de pied 26 diffère essentiellement du vérin de pied des figures 2 et 3 en ce qu'il est à vis.The foot jack 26 differs essentially from the foot jack of the figures 2 and 3 in that it is to screw.

Le vérin de pied 26 comprend une tige filetée d'actionnement 160 vissée suivant l'axe A dans un écrou 162 solidaire du fourreau 34. La tige 160 est liée en translation au pied 38 suivant l'axe A et déplace ainsi le pied 38.The foot jack 26 comprises a threaded actuating rod 160 screwed along the axis A in a nut 162 integral with the sleeve 34. The rod 160 is linked in translation to the foot 38 along the axis A and thus moves the foot 38.

La tige 160 est reçue libre en rotation et fixe en translation dans une cage 164 formée par le pied 38. La tige 160 comporte à cet effet une tête de connexion 166 de forme complémentaire de la cage 164.The rod 160 is received freely in rotation and fixed in translation in a cage 164 formed by the foot 38. The rod 160 has for this purpose a connecting head 166 of complementary shape of the cage 164.

La tige 160 comprend, à l'extérieur du fourreau 34, une tête de manoeuvre 168 permettant de faire tourner la tige 160 au moyen d'un outil.The rod 160 comprises, outside the sheath 34, an operating head 168 for rotating the rod 160 by means of a tool.

Le vissage et le dévissage de la tige 160 déplacent le pied 38 le long de son axe A entre sa position abaissée et sa position relevée.Screwing and unscrewing the shaft 160 moves the foot 38 along its axis A between its lowered position and its raised position.

Le vérin de pied des figures 9 et 10 présente l'avantage d'une grande fiabilité et d'un coût de fabrication relativement faible.The foot jack Figures 9 and 10 has the advantage of high reliability and a relatively low manufacturing cost.

Les figures 11 à 16 illustrent un troisième mode de réalisation du vérin de pied, dans laquelle seules les différences par rapport au vérin de pied des figures 9 et 10 seront décrites ci-dessous et sur lesquelles des numéros de référence identiques désignent des éléments analogues.The Figures 11 to 16 illustrate a third embodiment of the foot jack, in which only the differences with respect to the foot jack of the Figures 9 and 10 will be described below and to which like reference numerals designate like elements.

Le vérin de pied 26 selon le troisième mode de réalisation se distingue essentiellement en ce qu'il comporte un centreur 170 vissé sur le pied 38.The foot jack 26 according to the third embodiment essentially differs in that it comprises a centralizer 170 screwed onto the foot 38.

D'une manière générale, le centreur 170 est monté mobile en translation par rapport au pied 38 de telle sorte que le pied 38, et notamment l'embase 72, puisse être insérée dans la banche inférieure 2A et bloquée en translation dans la banche inférieure 2A avant insertion du centreur 170 dans l'orifice de centrage 91.In general, the centralizer 170 is mounted to move in translation relative to the foot 38 so that the foot 38, and in particular the base 72, can be inserted into the lower branch 2A and locked in translation in the lower section. 2A before insertion of the centering device 170 into the centering hole 91.

Dans le mode de réalisation illustré, le pied 38 comprend plus particulièrement une tige filetée 160 reçue coulissante dans le fourreau 34 suivant son axe A. La tige 160 est, dans l'exemple illustré, guidée en coulissement par une bague 174 fixée à l'extrémité supérieure 34B du fourreau 34. La tige 160 traverse la bague 174.In the illustrated embodiment, the foot 38 more particularly comprises a threaded rod 160 slidably received in the sleeve 34 along its axis A. The rod 160 is, in the illustrated example, guided in sliding manner by a ring 174 fixed to the upper end 34B of the sleeve 34. The rod 160 passes through the ring 174.

Le centreur 170 est un écrou vissé sur la tige 160 le long de l'axe A. Le vissage et le dévissage de la tige 160 déplace ainsi le centreur 170 en translation le long de l'axe A par rapport à la tige 160.The centralizer 170 is a nut screwed onto the rod 160 along the axis A. The screwing and unscrewing of the rod 160 thus displaces the centraliser 170 in translation along the axis A with respect to the rod 160.

Le centreur 170 est monté libre en translation suivant son axe A dans le fourreau 34. Il est bloqué en translation vers le haut par la bague 174, dans une position escamotée à l'intérieur du fourreau 34 (figures 11 à 13) et bloqué en translation vers le bas par un épaulement interne 180 du fourreau 34, dans une position de centrage (figures 15 et 16).The centralizer 170 is freely mounted in translation along its axis A in the sleeve 34. It is locked in translation upwards by the ring 174, in a retracted position inside the sleeve 34 ( Figures 11 to 13 ) and locked in translation downwards by an internal shoulder 180 of the sheath 34, in a centering position ( figures 15 and 16 ).

Le centreur 170 est en outre bloqué en rotation dans le fourreau 34, par exemple par complémentarité de forme, par exemple hexagonale. Le centreur 170 comporte à cet effet une tête 175 de blocage en rotation, en saillie radiale par rapport à la partie inférieure du centreur 170, et logée dans le fourreau 34. Le blocage en rotation est cependant en variante obtenu par d'autres moyens de tout type adapté. Du fait de ce blocage en rotation, le vissage et le dévissage de la tige 160 dans le centreur 170 assure la translation de la tige 160 par rapport au centreur 170.The centralizer 170 is further locked in rotation in the sleeve 34, for example by complementarity of shape, for example hexagonal. The centralizer 170 comprises for this purpose a rotational locking head 175, projecting radially through relative to the lower part of the centralizer 170, and housed in the sleeve 34. The rotational locking is, however, alternatively obtained by other means of any suitable type. Because of this locking in rotation, the screwing and unscrewing of the rod 160 in the centralizer 170 ensures the translation of the rod 160 relative to the centralizer 170.

Le sens du pas du filetage est, dans l'exemple illustré, choisi pour que le vissage de la tige 160 assure la translation de la tige 160 vers le bas par rapport au centreur 170, et pour que le dévissage de la tige 160 assure la translation de la tige 160 vers le haut par rapport au centreur 170.The direction of the pitch of the thread is, in the example shown, chosen so that the screwing of the rod 160 ensures the translation of the rod 160 downwards relative to the centralizer 170, and that the unscrewing of the rod 160 ensures the translation of the rod 160 upwards with respect to the centralizer 170.

La partie inférieure du centreur 170 est prévue pour pénétrer les alésages 42 et 91 de centrage et réaliser ainsi le centrage des banches 2 et 2A l'une part rapport à l'autre.The lower part of the centralizer 170 is provided to penetrate the bores 42 and 91 of centering and thus achieve the centering of the panels 2 and 2A relative to each other.

La surface externe de la partie inférieure du centreur 170 est ainsi de préférence choisie cylindrique, par exemple circulaire, et de forme complémentaire des alésages 42 et 91.The outer surface of the lower part of the centralizer 170 is thus preferably selected cylindrical, for example circular, and of complementary shape to the bores 42 and 91.

Le pied 38 va maintenant être décrit plus en détail.The foot 38 will now be described in more detail.

La tige 160 est retenue en translation le long de l'axe A par un organe élastomère 177 agissant radialement sur le pied 38.The rod 160 is retained in translation along the axis A by an elastomer member 177 acting radially on the foot 38.

L'organe élastomère 177 est agencé pour appuyer sur la tige 160 suivant une partie de sa périphérie. Il a une forme de tout type adapté pour un appui radial sur la tige 160, par exemple une forme de parallélépipède rectangle.The elastomeric member 177 is arranged to press the rod 160 along part of its periphery. It has a shape of any type suitable for a radial support on the rod 160, for example a rectangular parallelepiped shape.

Une vis 178 appuie sur l'organe élastomère 177 et permet ainsi, en déformant plus ou moins l'organe 177, le réglage des frottements générés par l'organe élastomère 177 sur le pied 38.A screw 178 presses on the elastomer member 177 and thus allows, by more or less deforming the member 177, the adjustment of the friction generated by the elastomer member 177 on the foot 38.

L'organe élastomère 177 est prévu pour assurer un frottement suffisant contrant l'action de la gravité sur le pied 38 et assure ainsi le maintien du pied 38 dans la position relevée.The elastomeric member 177 is provided to provide sufficient friction against the action of gravity on the foot 38 and thus ensures the maintenance of the foot 38 in the raised position.

Lors du vissage de la tige 160, l'effort en translation transmis à la tige 160 par le centreur 170 devra être supérieur à la force de frottement appliquée par l'organe élastomère 177. Le couple de vissage doit ainsi être supérieur à une valeur prédéterminée pour assurer le déplacement relatif de la tige 160 et du centreur 170.When screwing the rod 160, the translation force transmitted to the rod 160 by the centralizer 170 must be greater than the friction force applied by the elastomer member 177. The tightening torque must thus be greater than a predetermined value. to ensure the relative displacement of the rod 160 and the centralizer 170.

A cet effet, la tige 160 est munie, à son extrémité supérieure 160B, d'une tête de manoeuvre 168 faisant saillie à l'extérieur du fourreau 34.For this purpose, the rod 160 is provided, at its upper end 160B, with an operating head 168 projecting outside the sleeve 34.

En variante, les moyens de frottement sont assurés par un organe de tout type adapté, par exemple métallique.Alternatively, the friction means are provided by a member of any suitable type, for example metallic.

En variante également, la vis 178 est remplacée par un moyen de compression de tout type adapté pour agir sur l'organe élastomère 177.Alternatively also, the screw 178 is replaced by a compression means of any type adapted to act on the elastomeric member 177.

L'embase 72 d'appui au sol est montée captive et folle à l'extrémité inférieure 160A de la tige 160. D'une manière générale, l'embase 72 est montée solidaire en translation et libre en rotation autour de l'axe A par rapport à la tige 160.The ground support base 72 is mounted captive and crazy at the lower end 160A of the rod 160. In a general manner, the base 72 is mounted integral in translation and free in rotation about the axis A relative to the rod 160.

En variante néanmoins, l'embase 72 est montée solidaire de la tige 160.As a variant, however, the base 72 is mounted integral with the rod 160.

Le vérin de pied 26 selon le troisième mode de réalisation diffère aussi essentiellement en ce que le blocage en translation le long de l'axe B dans la banche inférieure 2A est réalisé par une fourche 190 prévue pour enserrer le pied 38 entre ses branches 192 (voir figure 12 bis).The foot jack 26 according to the third embodiment also differs essentially in that the blocking in translation along the axis B in the lower panel 2A is formed by a fork 190 provided for gripping the foot 38 between its branches 192 ( see figure 12 bis).

La fourche 190 est mobile entre une position d'insertion et de retrait du pied 38 (figures 12bis et 13bis), dans laquelle le pied 38 peut être inséré librement dans la banche inférieure 2A, et une position de verrouillage, dans laquelle la fourche 190 retient la translation du pied 38 vers le haut suivant l'axe B par rapport au corps 6 de la banche inférieure 2A (figures 14 à 15).The fork 190 is movable between a position of insertion and withdrawal of the foot 38 ( Figures 12a and 13bis ), in which the foot 38 can be inserted freely into the lower wall 2A, and a locking position, in which the fork 190 holds the translation of the foot 38 upwards along the axis B relative to the body 6 of the wall lower 2A ( Figures 14 to 15 ).

A cet effet, l'embase 72 forme un épaulement 193 de butée contre les branches 192. D'une manière générale, la fourche 190 peut être remplacée par un organe de retenue de tout type adapté coopérant avec l'épaulement 193.For this purpose, the base 72 forms a shoulder 193 against the branches 192. In a general manner, the fork 190 can be replaced by a retaining member of any suitable type cooperating with the shoulder 193.

Les branches 192 froment de préférence chacune une surface de came 192A coopérant avec la tige 160 pour guider la tige 160 entre les deux branches 192 (voir figures 13bis et 14 bis).The branches 192 preferably each grind a cam surface 192A cooperating with the rod 160 to guide the rod 160 between the two branches 192 (see FIG. figures 13a and 14 bis).

La fourche 190 est, de façon analogue à la broche de verrouillage 83, montée mobile en translation suivant une direction radiale C à la tige 160.The fork 190 is, in a similar manner to the locking pin 83, mounted to move in translation in a radial direction C to the rod 160.

La fourche 190 est, dans l'exemple illustré, sollicitée élastiquement par un ressort 194 vers la tige 160.The fork 190 is, in the illustrated example, resiliently biased by a spring 194 towards the rod 160.

La fourche 190 comprend par exemple une plaque 196 formant les deux branches 192 et délimitant entre elles une fente 197 dont la largeur est sensiblement égale au diamètre de la tige 160.The fork 190 comprises for example a plate 196 forming the two branches 192 and delimiting between them a slot 197 whose width is substantially equal to the diameter of the rod 160.

La fourche 190 comprend également une tige 198 montée coulissante dans le corps 6 de la banche inférieure 2A et reliée de façon solidaire à la plaque 196.The fork 190 also comprises a rod 198 slidably mounted in the body 6 of the lower panel 2A and integrally connected to the plate 196.

La plaque 196 est logée à l'intérieur du corps de coffrage 6 tandis que la tige 198 est reçue traversante dans le corps 6 et fait saillie à l'extérieur du corps 6, de façon à permettre l'actionnement de la fourche 190 par un opérateur, par exemple au moyen d'une poignée rapportée sur la tige 198.The plate 196 is housed inside the shuttering body 6 while the rod 198 is received through the body 6 and protrudes outside the body 6, so as to allow the fork 190 to be actuated by a operator, for example by means of a handle attached to the rod 198.

Le fonctionnement du vérin de pied selon le troisième mode de réalisation va maintenant être décrit.The operation of the foot jack according to the third embodiment will now be described.

La figure 11 illustre le pied 38 et le centreur 170 de chacun des deux vérins de pied 26 dans leur positions relevées respectives. La banche supérieure 2 est rapprochée de la banche inférieure 2A. Pour ce faire avec plus de facilité, les banches 2 et 2A sont par exemple disposées à plat sur le sol.The figure 11 illustrates the foot 38 and the centralizer 170 of each of the two foot cylinders 26 in their respective raised positions. The upper side 2 is close to the lower side 2A. To do this with greater ease, the panels 2 and 2A are for example arranged flat on the floor.

L'opérateur visse alors le pied 38 de chaque vérin 26 pour déplacer le pied 38 vers la position abaissée et ainsi inséré le pied dans la banche inférieure 2A.The operator then screws the foot 38 of each cylinder 26 to move the foot 38 to the lowered position and thus inserted the foot in the lower panel 2A.

Du fait du blocage en rotation du centreur 170 dans le fourreau 34, le vissage du pied 38 déplace le pied 38 en translation le long de l'axe A par rapport au centreur 170.Due to the rotational locking of the centralizer 170 in the sleeve 34, the screwing of the foot 38 moves the foot 38 in translation along the axis A with respect to the centralizer 170.

Le centreur 170 étant dans la position relevée, bloqué en appui contre la bague 174, sa translation par rapport au corps 6 est empêchée. Il en résulte que le pied 38 est déplacé en translation par rapport au corps 6 vers et jusqu'à la position abaissée de la figure 13.The centraliser 170 being in the raised position, locked in abutment against the ring 174, its translation relative to the body 6 is prevented. As a result, the foot 38 is displaced in translation relative to the body 6 towards and to the lowered position of the figure 13 .

Préalablement, la fourche 190 a été déplacée dans sa position d'insertion et de retrait du pied illustrée sur les figures 12bis et 13bis, par actionnement de la tige 198.Previously, the fork 190 has been moved to its position of insertion and withdrawal of the foot illustrated on the Figures 12a and 13bis by actuating the rod 198.

La tige 198 est, une fois le pied 38 introduit, relâchée par l'opérateur et la fourche 190 déplacée par le ressort 194 dans sa position de verrouillage du pied 38 (figures 14 et 14bis).The rod 198 is, once the foot 38 introduced, released by the operator and the fork 190 moved by the spring 194 in its locking position of the foot 38 ( Figures 14 and 14bis ).

Dans cette position, le retrait du pied 38 est empêché. En effet, la fourche 190 étant fixe en translation le long de l'axe B, la fourche 190 bloque la translation du pied 38 vers le haut par rapport au corps 6 de la banche inférieure 2B.In this position, the withdrawal of the foot 38 is prevented. Indeed, the fork 190 being fixed in translation along the axis B, the fork 190 blocks the translation of the foot 38 upwardly relative to the body 6 of the lower panel 2B.

Une fois le pied 38 bloqué, l'opérateur dévisse le pied 38 pour déplacer le centreur 170 en translation le long de l'axe A vers et jusqu'à sa position abaissée, en butée contre l'épaulement interne 180 du fourreau 34. Le centreur est alors dans la position de la Figure 15. Il traverse l'alésage de centrage 42.Once the foot 38 is blocked, the operator unscrews the foot 38 to move the centraliser 170 in translation along the axis A towards and to its lowered position, abutting against the internal shoulder 180 of the sleeve 34. centraliser is then in the position of the Figure 15 . It passes through the centering bore 42.

Enfin, un fois le centreur 170 en butée contre l'épaulement 180, un dévissage supplémentaire du pied 38 déplace le pied vers et jusqu'à sa position intermédiaire de serrage illustrée sur la figure 16. La rotation du pied 38 assure ainsi le serrage des banches 2 et 2A l'une contre l'autre. En outre, lors du déplacement relatif du pied 38 et du centreur 170, ce dernier pénètre le deuxième alésage de centrage 91, ce qui réalise le centrage des banches 2 et 2A, comme illustré sur la figure 16.Finally, once the centralizer 170 abuts against the shoulder 180, an additional unscrewing of the foot 38 moves the foot towards and to its intermediate clamping position illustrated on FIG. figure 16 . The rotation of the foot 38 thus ensures the clamping of the panels 2 and 2A against each other. In addition, during the relative displacement of the foot 38 and the centering device 170, the latter penetrates the second centering bore 91, which realizes the centering of the panels 2 and 2A, as illustrated in FIG. figure 16 .

Le vérin de pied 26 selon le troisième mode de réalisation présente ainsi l'avantage particulier de permettre le verrouillage du pied 38 préalablement au centrage des banches 2 et 2A. Il en résulte que les efforts d'écartement des banches résultant de la pénétration du centreur 170 dans la banche inférieure 2A sont contrés par le blocage du pied 38 dans la banches inférieure 2A.The foot jack 26 according to the third embodiment thus has the particular advantage of allowing the locking of the foot 38 prior to the centering of the panels 2 and 2A. As a result, the spacing forces of the panels resulting from the penetration of the centering device 170 into the lower panel 2A are counteracted by the blocking of the foot 38 in the lower panels 2A.

Les instructions d'assemblage sont en outre particulièrement simples pour l'opérateur car le vérin de pied 26 peut être configuré pour que l'opérateur doive dans un premier temps visser le pied 38 à fond puis dévisser le pied 38 jusqu'à un couple prédéterminé de serrage.The assembly instructions are also particularly simple for the operator because the foot jack 26 can be configured so that the operator must first screw the foot 38 fully and then unscrew the foot 38 to a predetermined torque Clamping.

Le montage fou de l'embase 72 réduit les efforts de frottement au sol et contre la fourche 190.The crazy assembly of the base 72 reduces the friction forces on the ground and against the fork 190.

L'organe élastomère 177 est particulièrement simple à fabriquer et facilite l'actionnement du vérin 26. Il permet en outre davantage de tolérance que de prévoir un filetage dans la bague 174 pour retenir le pied 38.The elastomer member 177 is particularly simple to manufacture and facilitates the actuation of the jack 26. It also allows more tolerance than to provide a thread in the ring 174 to retain the foot 38.

La fourche 190 assure, notamment grâce aux cames 192A, un déplacement facile vers sa position de verrouillage. Contrairement à la broche de verrouillage 83, la fourche 190 ne requiert pas un positionnement précis du pied 38 par rapport à la fourche 190.The fork 190 ensures, particularly thanks to the cams 192A, easy movement to its locking position. Unlike the locking pin 83, the fork 190 does not require precise positioning of the foot 38 relative to the fork 190.

A noter qu'en variante, le vérin de pied 26 selon le troisième mode de réalisation est hydraulique.Note that alternatively, the foot cylinder 26 according to the third embodiment is hydraulic.

Claims (12)

Banche (2) de moulage d'un voile en béton, du type comprenant au moins un vérin de pied (26) comprenant un pied mobile (38) d'appui au sol,
caractérisée en ce que le vérin de pied (26) comprend des moyens de centrage (80, 42, 91 ;170) de la banche (2) par rapport à une banche inférieure (2A), et des moyens de serrage vertical (82) de la banche (2A) contre la banche inférieure (2A).Shaft (2) for molding a concrete web, of the type comprising at least one foot cylinder (26) comprising a movable foot (38) for supporting the ground,
characterized in that the foot cylinder (26) comprises centering means (80, 42, 91, 170) of the formwork (2) relative to a lower formwork (2A), and vertical clamping means (82). banche (2A) against the lower side (2A). Banche (2) selon la revendication 1, dans laquelle le pied (38) est mobile en translation par rapport au corps (6) de la banche (2) le long d'un axe de translation (A) entre une position abaissée, une position relevée, et une position intermédiaire de serrage de la banche (2) contre la banche inférieure (2A).Banche (2) according to claim 1, wherein the foot (38) is movable in translation relative to the body (6) of the formwork (2) along a translation axis (A) between a lowered position, a raised position, and an intermediate clamping position of the formwork (2) against the lower formwork (2A). Banche (2) selon la revendication 2, dans laquelle les moyens de centrage comprennent un centreur (170) monté mobile en translation par rapport au pied (38) le long dudit axe de translation (A).Banche (2) according to claim 2, wherein the centering means comprise a centralizer (170) mounted to move in translation relative to the foot (38) along said translation axis (A). Banche (2) selon la revendication 3, dans laquelle le centreur (170) est vissé sur le pied (38) et ainsi mobile en translation par rapport au pied (38) le long dudit axe de translation (A).Banche (2) according to claim 3, wherein the centralizer (170) is screwed on the foot (38) and thus movable in translation relative to the foot (38) along said translation axis (A). Banche (2) selon la revendication 4, dans laquelle le vérin de pied (26) comprend des moyens (34) de blocage en rotation du centreur (170) autour dudit axe de translation (A) et par rapport au corps (6) de la banche (2).Banche (2) according to claim 4, wherein the foot cylinder (26) comprises means (34) for locking in rotation of the centralizer (170) about said translation axis (A) and relative to the body (6) of the banche (2). Banche (2) selon la revendication 4 ou 5, dans laquelle le centreur (170) et le pied (38) sont configurés de telle sorte que la rotation du pied (38) dans un premier sens déplace le pied (38) de la position relevée vers et jusqu'à la position abaissée et en ce que la rotation du pied (38) dans un deuxième sens opposé assure le déplacement du centreur (170) jusqu'à une position abaissée d'insertion dans un orifice de centrage (91) de la banche inférieure (2A).Boot (2) according to claim 4 or 5, wherein the centralizer (170) and the foot (38) are configured so that the rotation of the foot (38) in a first direction moves the foot (38) of the position raised to and down to the lowered position and in that the rotation of the foot (38) in a second opposite direction causes the centering (170) to move to a lowered insertion position in a centering hole (91) the lower side (2A). Banche (2) selon la revendication 6, dans laquelle le centreur (170) et le pied (38) sont également configurés de telle sorte qu'une fois le centreur (170) dans la position abaissée, une rotation supplémentaire du pied (38) dans ledit deuxième sens assure le déplacement du pied (38) en translation le long dudit axe de translation (A) par rapport au corps (6) de la banche (2), vers la position relevée et jusqu'à la position intermédiaire de serrage.The handle (2) according to claim 6, wherein the centralizer (170) and the foot (38) are also configured so that once the centralizer (170) is in the lowered position, an additional rotation of the foot (38) in said second direction ensures displacement of the foot (38) in translation along said translation axis (A) relative to the body (6) of the formwork (2), towards the raised position and to the intermediate clamping position . Banche (2) selon l'une quelconque des revendications 3 à 7, dans laquelle le pied (38) est monté coulissant suivant ladite direction de translation (A) par rapport au corps (6) de la banche (2).Banche (2) according to any one of claims 3 to 7, wherein the foot (38) is slidably mounted in said direction of translation (A) relative to the body (6) of the formwork (2). Banche (2) selon la revendication 8 prise ensemble avec la revendication 4, dans laquelle le vérin de pied (26) comprend des moyens de frottement (178) contre le pied (38) pour maintenir le pied (38) dans la position relevée à l'encontre de la gravité tout en permettant la translation du pied (38) au-delà d'un couple prédéterminé de vissage du pied (38) dans le centreur (170).A handle (2) according to claim 8 taken together with claim 4, wherein the foot cylinder (26) comprises friction means (178) against the foot (38) to hold the foot (38) in the raised position at against the gravity while allowing the translation of the foot (38) beyond a predetermined torque screwing the foot (38) in the centralizer (170). Banche(2) selon l'une quelconque des revendications précédentes, dans laquelle la banche (2) comporte des moyens de retenue (190) pour permettre d'empêcher le retrait du pied (38) d'une banche supérieure une fois inséré le pied (38) dans la banche (2).Banche (2) according to any one of the preceding claims, wherein the formwork (2) comprises retaining means (190) to prevent the withdrawal of the foot (38) of a superior formwork once inserted the foot (38) in the box (2). Banche (2) selon la revendication 10, dans laquelle les moyens de retenue comprennent un organe de butée (190) monté mobile en translation suivant une direction radiale (C) à la direction d'insertion du pied (38), ledit organe de butée (190) coopérant avec un épaulement (193) du pied (38) pour retenir le pied (38).Shaft (2) according to claim 10, wherein the retaining means comprise an abutment member (190) movably mounted in translation in a radial direction (C) to the direction of insertion of the foot (38), said stop member (190) cooperating with a shoulder (193) of the foot (38) to retain the foot (38). Ensemble (14) d'au moins deux banches (2) de moulage d'un voile en béton comprenant une banche supérieure (2) et une banche inférieure (2A) aptes à être assemblées l'une au-dessus de l'autre, caractérisé en ce que au moins l'une des banches (2, 2A) est selon l'une quelconque des revendications précédentes.Assembly (14) of at least two molding boards (2) of a concrete web comprising an upper panel (2) and a lower panel (2A) capable of being assembled one above the other, characterized in that at least one of the panels (2, 2A) is according to any one of the preceding claims.
EP10151236A 2009-01-21 2010-01-20 Shuttering for forming a concrete wall, group of formworks assembled to each other Active EP2211001B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0950368A FR2941252B1 (en) 2009-01-21 2009-01-21 MOLDING BANK OF A CONCRETE SAIL, SET OF BANKS ASSEMBLED BETWEEN THEM.
FR0952467A FR2941253B1 (en) 2009-01-21 2009-04-15 MOLDING BANK OF A CONCRETE SAIL, SET OF BANKS ASSEMBLED BETWEEN THEM.

Publications (2)

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EP2211001A1 true EP2211001A1 (en) 2010-07-28
EP2211001B1 EP2211001B1 (en) 2011-08-24

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AT (1) ATE521766T1 (en)
FR (1) FR2941253B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3010723A1 (en) * 2013-09-13 2015-03-20 Sateco Sa FORMWORK BANK COMPRISING A SUPPORT MEMBER FOR AN AUXILIARY FORMWORK
FR3016382A1 (en) * 2014-01-14 2015-07-17 Outinord St Amand FORMWORK BANK.
FR3044337A1 (en) * 2015-11-30 2017-06-02 Sateco Sa BANK COMPRISING A CONFIRMATION DEVICE IN A BANK, A SET OF TWO BANKS AND A METHOD OF ASSEMBLY
FR3074205A1 (en) * 2017-11-24 2019-05-31 Outinord St Amand BANK, BANK ASSEMBLY, AND ASSEMBLY METHOD
EP4030019A1 (en) * 2021-01-14 2022-07-20 Sateco Form panel comprising at least one ridge linking device, assembly of two form panels and linking method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1413696A1 (en) * 2002-10-24 2004-04-28 Hussor S.A. Shuttering in composite material
EP1975338A1 (en) * 2007-03-19 2008-10-01 Hussor (Société par Actions Simplifiée) Device for stacking form panels

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1413696A1 (en) * 2002-10-24 2004-04-28 Hussor S.A. Shuttering in composite material
EP1975338A1 (en) * 2007-03-19 2008-10-01 Hussor (Société par Actions Simplifiée) Device for stacking form panels

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3010723A1 (en) * 2013-09-13 2015-03-20 Sateco Sa FORMWORK BANK COMPRISING A SUPPORT MEMBER FOR AN AUXILIARY FORMWORK
FR3016382A1 (en) * 2014-01-14 2015-07-17 Outinord St Amand FORMWORK BANK.
FR3044337A1 (en) * 2015-11-30 2017-06-02 Sateco Sa BANK COMPRISING A CONFIRMATION DEVICE IN A BANK, A SET OF TWO BANKS AND A METHOD OF ASSEMBLY
FR3074205A1 (en) * 2017-11-24 2019-05-31 Outinord St Amand BANK, BANK ASSEMBLY, AND ASSEMBLY METHOD
EP4030019A1 (en) * 2021-01-14 2022-07-20 Sateco Form panel comprising at least one ridge linking device, assembly of two form panels and linking method

Also Published As

Publication number Publication date
FR2941253B1 (en) 2011-02-18
EP2211001B1 (en) 2011-08-24
ATE521766T1 (en) 2011-09-15
FR2941253A1 (en) 2010-07-23

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