JPH0360645B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved adjustable formwork for producing concrete elements of stairs, for example.

An adjustable formwork for producing concrete stairs is known from French Patent No. 2,576,830. This conventional formwork includes, inter alia, an underframe on which a bottom part, two front and rear transverse partition plates (partition plates) connected to the underframe, and two longitudinal partition plates are provided. There is a partition board.

The bottom of the formwork is assembled into dihedral bodies each projecting into the formwork.

It consists of a number of juxtaposed molding elements and a continuous belt that is watertight and soft against the concrete which covers and conforms to the shape of the molding elements.

Each molding element consists of two length-adjustable partition plates that are connected to each other along the edges of the dihedron they form and that are connected to each other along the edges of the dihedron they form. It includes a telescoping arm fixed to both dividers so that the

Therefore, by varying the length of the partition plates and the angle they form, the geometry of the bottom of the formwork can be varied and different dimensional characteristics (tread height, tread length) can be changed. The same formwork can be used to produce a staircase with a tread angle and a non-slip angle of the treads.

The further elements of the molding are supported by carriages which ride on longitudinal guide rails of the formwork. More specifically, each trolley has two adjacent
Two adjacent partition plates, each belonging to one molding element, are arranged so as to be supported by a lower bridge of the partition plates.

Furthermore, each trolley is arranged in such a way that either of the lower ends of the partition plates supported by the trolley can be moved closer together or further apart, in which case a soft belt forms a loop between two adjacent elements. can be tightened between the two modules in order to wrap around rollers supported by a carriage, or loosened in order to move with respect to the partition of the molding element, especially when adjusting the formwork. The trolley supports the partition plate so that it can be used.

By using a soft continuous belt as a covering element for the molding element, problems due to the lack of water-tightness of the molding can be specifically solved.

However, in use, if this continuous belt tears, the inconvenience of having to replace the entire belt, even if the crack or deterioration is limited to one part of the belt, is In some cases, it has become clear.

Tensioning of conventional formwork belts was accomplished by tension rolls at the ends.

In use, it has become clear that this solution is not entirely satisfactory, apart from the fact that it is relatively complex to operate.

Conventional formwork had one beveled partition plate on the bottom that could produce a landing under the stairs.

This partition plate was connected to a device for adjusting its inclination.

This device as originally conceived does not allow for rapid and accurate adjustment of the inclination.

Moreover, the conventional formwork is not equipped with a molding device for the lower landing of the stairs.

By using an improved formwork, the invention allows rapid repair of the watertight element in case of deterioration by simply replacing the deteriorated part.
The purpose is to eliminate the above inconvenience.

Another object of the invention is to provide an improved formwork as described above, so that the watertight elements can be tensioned in a simple and effective manner.

Finally, another object of the invention is to provide an improved formwork as described above, so that the inclination of the molded partitions of the upper and lower landings of the stairs can be adjusted quickly and precisely.

To this end, the improved formwork according to the invention, for example for producing concrete elements of stairs, includes an underframe on which two partition plates, sometimes perpendicular in the longitudinal direction, are arranged. , a bottom part placed between these two partition plates rests, the contour of which can be varied geometrically and complements the contours of the row of treads and one or two landings of the staircase. The bottom of the staircase is constituted by juxtaposed molded elements, each of which has an associated tread, juxtaposed in a dihedral projecting into the formwork. Adjustable slopes respectively dedicated to the construction of the molded board module and the upper and lower landings of the staircase and connected to either module at the end of the row of molded tread modules. It includes two partition plates at the ends of the
The essential feature is that each molded element 4 or 5 is associated with a thin plate (foil) which is watertight and flexible with respect to the concrete and covers the entire element; At least between the elements adjacent to this element, it is arranged on both of these elements and the laminate is connected to both elements covered by a tensioning device.

Despite other characteristics, each watertight lamina is secured to the tensioning mechanism by a quick clip system.

Therefore, even if the bottom watertight covering is torn, it is not necessary to replace the entire covering, but only the torn area, which can be easily carried out by means of the quick clip system.

Other advantages and characteristics of the invention will be seen in the following description of a preferred embodiment of the embodiment, given by way of non-restrictive example based on the drawings.

As mentioned above, the improved formwork according to the invention, for example for producing concrete elements of stairs, includes an underframe 1 on which longitudinal vertical two partition walls and one bottom 3 placed between the two partition walls
, whose geometrically variable (bottom) contour complements the contours of the series of treads and one or two landings of the staircase.

The bottom part 3 is constituted by juxtaposed molded elements, which contain modules 4 and molded in juxtaposed treads, each assembled in a dihedral shape protruding into the formwork. two dividers at the ends of the adjustable slope for producing the upper and lower stair landings, respectively, and two dividers at the ends of the molded side-by-side modules of the tread. Each is connected to a module.

Between each molded module of the tread board, a core having a shape suitable to complement the non-slip shape of the tread board is arranged.

According to the invention, each formwork element has 6 flexible thin plates that are watertight and movable relative to the concrete.
are connected, and this thin plate covers the entire element with which the thin plate is combined, and between this element and at least an element adjacent to this element, the thin plate is located on both of this element, and is covered by the thin plate. Both elements are connected by a tensioning mechanism 7.

The two longitudinal partition plates of the formwork are preferably placed on the movable structure of the underframe 1 by being pressed against the bottom part away from or close to the bottom part 3, which is relative to the longitudinal axis of the formwork. This is due to translational movement along the lateral direction.

For this movable structure, an actuation method that is known per se is involved.

The modular formwork of the tread mold extends in a transverse manner into the formwork and is supported along its length by a carriage movably mounted on rails 10 fixed to the underframe of the formwork. and extends along a direction parallel to the longitudinal axis of the formwork.

Each molded module 4 has two partition plates 1
1 and 12 and are formed by these two partition plates fixed to each other along the edges of a dihedron supported by two carriages 9, one of the carriages being connected to the first partition. The plate 11 is supported by its lower end, and the other carriages always support other partition plates 12 by their lower ends.

The two partition plates of each module are adjustable in length so that the contour of the bottom of the formwork matches the contour of the lined treads of the staircase to be manufactured.
By changing the length, each module of the mold insert 4 can be matched to the height and length of the stair tread to be manufactured.

Furthermore, these two partition plates are connected to each other along the edges of the dihedron they form,
Each partition plate is connected to a truck 9 that supports it. Furthermore, the two carts 9 supporting the same molded module are connected to each other by a mechanism 13 that can at least extend and contract.

With this device, it is possible to adjust the plane angle of the dihedral formed by the two partition plates, and as a result, this angle can be adjusted to the size of the angle of the corner tread non-slip of the staircase to be manufactured. I can do it.

With this arrangement, each molded module 4 can be
It is interesting to note that it can be adjusted independently of other modules.

The resulting staircase can therefore be manufactured with treads of different dimensions if required.

The mechanism 13, according to a first form of embodiment, is constituted by at least a telescoping arm constituted by two threaded rods 37 and 38, one of which supports the module. 2
The rods are connected to one of the two trolleys, and the other rods are connected to other trolleys that support this same module.

Each threaded rod exhibits a thread pitch opposite to that of the other rods.

The threaded rod mates with a sleeve 39 which has two internal taps each mating with the thread pitch of one threaded rod.

This sleeve is attached by rotational driving.

By rotating the sleeve, the length of the arm 13 can be increased depending on the direction of rotation.
It can also be made shorter.

Advantageously, each molded module has a number of telescopic arms connected to it which can be moved simultaneously by transmitting the same force.

By way of example, the transmission of this force can be achieved by using a number of toothed pinions 40, each wedged in a sleeve,
and a chain 41 that meshes with each toothed pinion. Furthermore, a manual handle 42 is attached to the sleeve 39 of the first extendable arm 13.
is attached.

According to another form of embodiment, the mechanism 13 is constituted by a manual spindle 43 parallel to the edge of the dihedral, which spindle has a section separating at least two screws, one of which is connected to the left pitch. Accordingly, the others are threaded according to the right pitch, each of which engages with a nut 44. This nut is connected to the ends of two symmetrical link rods 45 at two points of the diameter joint, respectively.
This link rod communicates by its other end with a cylindrical rod 46 parallel to the manual spindle and connected respectively to one of the carriages and to the other carriage.

Two link rods 4 connected to the same nut
5 is arranged in an opposite shape compared to the link rods of the other nuts, but their lengths are the same.
This is so that the two cylindrical rods can be moved simultaneously in parallel motion by rotating the manual spindle. This movement allows the threaded spindles to be moved apart or approached in a symmetrical manner.

More preferably, the left pitch screw and its second
The two groups respectively formed by the book link rod and the right pitch screw and its two link rods interlock with each other to form the same assembly. In the mechanism of the present invention, a large number of these aggregates are regularly arranged.

Advantageously, the two interdigitated groups have a common joint on the cylindrical rod.

The operating spindle 43 is advantageously mounted at the end of the operating landing.

The spindle can be moved manually using a manual handle, or it can be moved using a rotary drive motor arrangement.

As known from French Patent No. 2,576,830, each partition plate of each molded module of the tread is preferably constituted by a partition container in which partition plate pieces are slidably received; Each plate is joined to the previous plate by the same operating mechanism that slides the plate contained within the divider container in one direction or the other.

Such a mechanism is covered by French patent no.
It is also described in the specification of No. 2576830.

Each carriage 9 is connected to two adjacent molded elements.

The carriages, which are respectively connected to two molded modules, each support a partition plate of one module and a partition plate close to the previous partition plate of an adjacent module.

Each truck 9 has a horizontal base plate 14 equipped with a rotating device 15 that cooperates with the guide rail 10 to rotate, and two supports 1 mounted on this plate 14 so as to project upwardly.
It consists of 6.

Two adjacent partition plates, each belonging to an adjacent element supported by this carriage, are connected in each case to both supports 16 along an axis of articulation parallel to the edge of the dihedral.

The belt 6 of two adjacent molded elements supported by these two struts rests in part between these struts and also with the same tensioning mechanism arranged between these struts. It is designed to be joined.

The mechanism 13 associated with each molded module 4 and the two carriages 9 supporting this element is fixed via articulations to the struts 16 of one of the carriages and to the struts 16 of the other carriage.

More preferably, one of the two supports of each carriage is parallel to the edge of the dihedral formed by each molded module and is capable of some degree of rotational movement about a horizontal geometric axis. It means being on the same plate.

This arrangement allows the mold-filled modules to be pressed against each other by pushing or pulling along the length of the formwork, sandwiching the watertight lamina 6 and the inserts. In particular, this method ensures watertightness at the bottom of the mold, since no gaps are created between the modules in the mold. Alternatively, this arrangement also makes it possible to adjust the dimensions of each molded module of the tread and to separate the molded modules from each other by means of inserts.

According to a preferred form of embodiment, one of the molding devices at the ends is fixed to a rear structure 17 fixed to the underframe along the row of carriages, while the modules at the other end are , is connected to the push and pull device 19 by the rear truck of the row of trucks on which it is placed.

This pushing or pulling device consists of a structure 2 which rides movably on a guide rail 21 at the top of the underframe of the formwork, which extends parallel to the longitudinal direction of the formwork.
It consists of 0.

This structure 20 is equipped with a motor device for reliable movement in one direction or the other on the rails of the underframe of the formwork.

This motor device consists of a fixedly mounted reduction electric motor on the moving structure, operating via a suitable motion transmission device, in which two pinions are fixed to the frame of the formwork. It meshes with the teeth of the rack and transmits energy.

This electric motor is fitted with a control device which is itself known.

As already mentioned, each module 4 at the end
A molded partition plate 5 is attached to one of the two dance areas of the stairs.

According to a preferred form of embodiment, one of the dance halls
For example, the partition plates for the molding of the lower dance area are attached to fixed structures 17 at the ends of the rows of trolleys 9, while the other partition plates for the molding of the other dance areas on the stairs Reference numeral 5 is attached to a column corresponding to a cart at the end, and this cart is a cart connected to the moving structure 20 of the pushing and towing device.

The two partition plates are connected by an axis parallel to the ends of each dihedron formed by the molded modules of the tread.

Each partition plate 5 is further supported by a device for adjusting its inclination.

The device for adjusting the inclination of the mold-filling partition plate of the upper dance floor is supported by a moving structure, while the device for adjusting the inclination of the other partition plates is supported by the underframe of the formwork. There is.

These two devices extend under the respective partition plate 5 and are extendable and retractable devices, one fixed to the partition plate 5 and the other via joints connected to a part of the formwork supporting the so-called control device. 22, respectively.

This part of the formwork may be the movable structure 20 or the underframe of the formwork.

The movable structure 20 preferably comprises a movable pedestal slidably fixed to, for example, a tilt adjustment device.

This telescoping device is constituted by an actuating spindle 23 having at least two threads, one of which is threaded according to a left-hand pitch, the other is threaded according to a right-hand pitch; A nut 24 connects each, and two arms 25 which are tightly connected to the nut and engage with each other through two points of joints facing in opposite directions according to the diameter of the nut.
are arranged symmetrically with respect to the geometry of the working spindle and oppositely with respect to the arms of the other nuts and are of the same length, the four arms being of the same length and attached to the working spindle 23. Two parallel shafts 26 and two joints connected to the geometric axes of the joints of the partition plates are used. These geometric axes are attached to different parts of the spindle, and are connected to partition plates and
These control devices are immobilized via articulations in the part of the formwork that supports them.

It can thus be seen that the rotational actuation of the spindle facilitates the translational movement of the threaded nut and thus the simultaneous movement of the four arms 25.

As these arms widen the angle from the spindle's geometrical axis or conversely approach it, the 2
The spacing between the two axes 26 becomes larger or smaller, which results in one direction of the partition plate being
or rotation about an axis in the opposite direction is encouraged.

It should be noted that during operation of the spindle, the shaft 26 moves parallel to and symmetrically to the spindle. As a result, the spindle always occupies a position equidistant between these two axes.

Preferably, a left-handed threaded nut and its two arms also provide a right-handed threaded nut and its two arms.
The two glues, each formed by two arms 25, are connected to each other. That is, the two arms have a common point of articulation at the axis 26 and form the same mass, and as mentioned above, the telescoping device can be said to have many clusters fixed to the same spindle.

Each telescoping device has at least one protruding strut 27 connected thereto, according to the geometrical axis of the actuating spindle, by one of the ends of the protruding strut, and the other. connected by an end to a part of the formwork supporting the inclination control device (pedestal or underframe of the movable structure);
This inclination follows the geometrical axis of the articulation parallel to the geometrical axis of the articulation of the partition plate.

This geometric axis is the geometric articulation axis of the partition plate in the module to which it is connected, and the geometric articulation axis of the extension device in the part of the formwork supporting the inclination control device of the partition plate. and are arranged according to a geometrical plane containing the target axis and occupying equal distances between these two axes.

Furthermore, the distance separating the two joint points of the protruding struts is determined by the geometric axis of the joint of the partition plate 5 in the module of the corresponding tread and the geometric axis of the joint of the extendable device in this partition plate 5. Equal to the average of the distance values between.

According to a preferred form of embodiment, a number of parallel protruding columns of equal length are connected to a part of the formwork supporting this control device (the pedestal or frame of the movable structure) and to the extension device.

These projecting struts serve to maintain the working spindle according to the geometrical plane containing the articulation axis of the tensioning device in the structure of the partition plate 5 and the formwork, so that the working spindle is prevented by buckling. Prevents deformation.

Furthermore, these projecting struts also contribute to the translational positioning of the working spindle.

As previously mentioned, each element of the molding is covered by a lamella 6 of concrete-dense material which joins both of these elements together with a tensioning device 7.

The molding partition plate of the lower dance hall and the molding module connected to this partition plate for molding the lower stair treads are both covered by a single watertight thin plate, and this thin plate is It should be noted that a tension mechanism connects any of these elements.

According to the preferred form of implementation, each mechanism for tensioning the lamella covering the molded module is
They are each connected to the thin plates 6 of two adjacent molded elements connected to the same carriage 9.

Each of these tensioning mechanisms is preferably fixed to this carriage and located at a lower level compared to the level of the geometrical plane passing through the lower end of the partition plate constituting each module of the partition plate. .

Always in accordance with the preferred form of embodiment, the tension-generating mechanisms at the ends, i.e. the tension-generating mechanisms that are connected only to the thin plates covering the molded partitions 5 of the dance hall, are fixed to these partitions and are geometrically They are located below a geometric plane, and these partition plates unfold according to this geometric plane.

Each tension-generating mechanism has at least one watertight lamina of the molding element secured along its entire length.
Partition plate 28 with two upwardly protruding side plates 29
and at least two tension spindles 30, each of which has a beam 28 fixed at one end to the partition plate 28.
A, the spindles are inserted into the openings of the base plate,
Below this base plate, a compression spring device 32 is connected in each case, which spring device is arranged around the spindle 30 and compresses between the base plate and the plate 33. This dish-like body rests on the spindle and is engaged by a nut 3 cut on the spindle and tightened.
4 is axially attached to this spindle.

If the tension generating mechanism is fixed to the truck, the washer of this mechanism is attached to the base plate 14 of the truck.
Thus, two side edges are attached to the partition plate.

If the tension-generating mechanism is fixed to one of the end partition plates, the partition plate 28 may only have one
The washer 31 is provided with a side plate 35 fixed to this partition plate.

By moving the nut, the compression of the spring device is adjusted, so that the value of the tensile force is exerted by the spindle.

Preferably, the compression spring device 32 is a spiral spring.

According to a preferred form of implementation, beam 28A is made of metal, square in shape, and has a straight cross section. This beam 28A is fixed by the screw of the partition plate 28 and presses against the upper surface of this partition plate.

Depending on the preferred state of embodiment, beam 28A
It is longer than the partition plate 28 and is connected to the two spindles together with the partition plate.

Each watertight lamina 6 is secured with a quick clip system 36
This is advantageous because it is connected to the side plate of each tension generating mechanism by means of a screw.

This quick clip system, which is known per se, consists of two parts tightly connected together,
Each is fixed to the watertight thin plate and the side plate of the washer by rivets.

Each of the two parts may include a number of regularly spaced hinges along its joining zone to the other part, between which intervals the hinges of the other part are arranged in rows. I'm going to have a good time.

A spindle, normally movable axially, is inserted into the hinge in such a way as to connect the two parts to each other.

It is understood that the invention is susceptible to all modifications and changes without departing from the scope of the invention.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional front view of a formwork according to the invention. FIG. 2 is an enlarged cross-sectional view of the molding element and the two carriages supporting it. FIG. 3 is an explanatory view of the arm length adjustment mechanism of each device that adjusts the inclination of the partition plate at the end of the formwork. Figure 4 shows
1 schematically shows a new form of embodiment of a telescoping arm for supporting the same molded module by two adjacent carts; FIG.

Claims (1)

[Claims] 1. Includes an underframe 1, on which are mounted two vertical partition plates 2, in particular in the longitudinal direction, and a bottom part 3 arranged between these two partition plates. The variable geometric profile complements the profile of the rows of treads and one or two landings of the staircase, the base 3 of the staircase being constituted by juxtaposed molded elements, which The inset elements are juxtaposed in a dihedral manner protruding into the formwork, and are used for the production of the inset module 4 of the combined tread and the landing area at the top and bottom of the staircase, as well as columns. It features two adjustable sloped end dividers 5 each connected to either module at the end of the molded module of the tread. For inclusion element 4 or 5,
A laminate 6, which is watertight and flexible with respect to the concrete and covers the entire element, is associated with the laminate 6, which lamina 6 is arranged on both sides of the element, at least between adjacent elements. Improved formwork for producing concrete parts, for example of stairs, in which the sheet metal is connected with both covered elements by means of a tensioning device. 2 Each molded module is supported by two carriages, each carriage 2 supporting two adjacent molding elements and connected to the two adjacent molding elements by a watertight laminate 6. 2. A formwork according to claim 1, characterized in that it houses a tensioning device. 3. Each trolley 9 has a horizontal bail plate 14 with a rotation device 15 rotatably connected to the rail 10, and an upwardly projecting plate supporting each of two adjacent molding elements. Two pillars 1 on the base plate
6, between which a portion of the belt 6 of two adjacent molding elements supported by these supports is arranged, and with the same tensioning mechanism supported by a trolley. The formwork according to claim 1, characterized in that the formwork is joined. 4. Each tensioning mechanism comprises a partition plate 28 with at least one upwardly projecting side plate 29 securing the watertight lamina of the molding element along its entire length; It is constituted by at least two tension shafts 30, each of which is rigidly connected by one of its ends to a beam 28A, which is rigidly connected to the partition plate 28, and has a hole passing through the base plate. below the base plate, each is connected with a compression spring device 32, which is arranged around the shaft and compresses the space between the base plate and the dish 33. The dish is characterized in that it rests on the shaft and is axially attached to the spindle by means of a nut 34 which engages by screwing with a screw cut on the shaft. The formwork according to claim 1. 5 Partition plate 28 of each tension mechanism fixed to the trolley
Claim characterized in that the thin plates 6 of two adjacent elements each have two side plates to which they are fixed, and that the flat part of this tensioning mechanism is constituted by a bogie field base plate. Formwork in Section 4. 6. The partition plate 28 of each tension mechanism fixed to the partition plate 5 has only one side plate 29,
5. A formwork according to claim 4, characterized in that the base plate (31) of this mechanism is fixed to the partition plate via side plates (35). 7. Formwork according to claim 1 or 4, characterized in that each lamina (6) is connected to a side plate of each tensioning mechanism, the lamina being connected to the side plate of the tensioning mechanism by a quick clip system (36). 8. Each molded module of the tread consists of two partition plates 11 and 12 of adjustable length, which are connected to each other along the edges of the dihedron they form. , two partition plates adjacent to two adjacent molded modules supported by this trolley are connected to the pillars 16 of each trolley 9, and also support the same molded modules. 2. Formwork according to claim 1, characterized in that the two carriages (9) are connected to each other by the same mechanism (13) which is extendable and retractable. 9. One of the two supports 16 of each trolley is configured to allow a limited rotational movement around a geometrical axis horizontal and parallel to the edge of each dihedron formed by each molded module. Claim 1, characterized in that the device is mounted on the base plate 14.
Section formwork. 10 One of the two molded modules of the end tread is fixed to an end structure 17 fixed to the trolley to lengthen the row of trolleys, and the other module of the end is Device 1 for pushing and towing by the terminal truck of the row of trucks on which it is placed
9. The formwork according to claim 1, characterized in that the formwork is connected to 9. 11 The device 19 for pushing and pulling is constituted by a structure 20 assembled above the formwork so that it can move in engagement with the guide rail 21, and this structure also includes Claim 1 further comprising a motor device for ensuring movement in one direction or the other.
Formwork for term 0. 12 One of the partition plates 5, which is assigned to the molding of one of the staircase dances, is connected to the fixed structure 17, while the other partition plate is connected to the supports of the terminal carriage, which Any one of claims 1 and 11, characterized in that it is a truck connected to a movable structure 20 of a pushing/pulling device.
Section formwork. 13. Formwork according to claim 1, characterized in that each partition plate is supported by an adjustment device for its inclination. 14 The devices for adjusting the inclination of one of the partition plates 5 are supported by the movable structure 20, while the other partition plates are supported by the underframes of the formwork; Formwork according to any one of claims 1, 11 or 12, characterized in that it extends under each of the partition plates (5). 15 Each device is connected by a retractable device 22 fixed via joints to the partition plate 5 on the one hand and to a part of the formwork supporting this device (underframe 1 or pedestal of the movable structure 20) on the other hand. The extensible device is constituted by an actuating shaft 22 that includes at least two threaded sections, one of which follows a left-hand pitch and the other threads follow a right-hand pitch. It is cut according to
A bushing 24 is engaged with each of these bushings, which are arranged symmetrically with respect to the geometrical axis of the actuating axle via two points of diametrically opposed articulation fixed to the bushing and As for the arms of the other bushings, two of equal length are arranged oppositely.
A book arm 25 is connected, these four arms are of the same length and are located on each side of this shaft and are part of the module (movable It is characterized in that two shafts 26 parallel to the shaft rod 23 are each fixed to the pedestal or underframe 1) of the structure 20 via joints, and two shafts 26 are fixed to each other via joints. The formwork according to claim 13. 16 At least one support rod 27 is connected to each telescoping device, connected by one of its ends to the actuating shaft along the geometrical axis of this shaft, and The other end of the support rod is connected to the part of the formwork supporting the adjustment device (the base 20 or the underframe), and this support rod is connected to the part of the formwork supporting the adjustment device (the base 20 or the underframe), which supports the geometrical articulation of the partition plate 5. Formwork according to claim 15, characterized in that it lies along the geometrical axis of the joint parallel to the axis. 17 The geometric axis of the articulation of the support rod 27 in the part of the formwork supporting the device for adjusting the inclination of the partition plate 5 is the geometric axis of the articulation of this partition plate in the module to which the partition plate 5 is connected. target axis,
and in a geometric plane containing the geometric axis of the articulation of the extensible device 22 in the part of the formwork supporting the adjustment device (movable structure 20 or underframe 1). The formwork according to claim 16.