Accessory coupling sleeve integrated into a formwork wall

Abstract

The object of the present invention relates to an accessory attachment sleeve (1) characterized in that the sleeve (1) comprises: - an axial straight structure (2) with an outer surface and an inner surface defining a housing (3) with an opening at one end (21), - a cooperation interface (4) fixed to the straight structure (2) and whose end provides non-aligned support points (4c) for positioning the straight structure (2) parallel to the plane of the support points (4c) of the cooperation interface (4), and in that, in a plane comprising the axis of the straight structure (2) and perpendicular to the plane of the support points (4c) of the cooperation interface (4), the second end (22) of the straight structure (2) comprises a continuous inclination between the two portions of outer surface (23, 24) positioned on either side of the axis of the straight structure (2).

Description

[0001] The present invention relates to the field of guardrail installation devices and more particularly to devices allowing the positioning of guardrails on a wall structure with integrated formwork.

[0002] On construction sites, the elevation of buildings requires the joint installation of elements that contribute to the safety of people working on the site, particularly at high positions. Some of these elements include, among other things, guardrails arranged to be installed around platforms or along walkways. One of the constraints imposed by these safety elements is that they must be easy to install. In addition, in addition to their ease of assembly, these safety elements are often for temporary use, i.e., for the duration of the construction site or part of it, and therefore also require the ability to be dismantled.

[0003] One solution for creating guardrails consists of positioning successive vertical posts or uprights along a position to be secured and between which a railing, a mesh structure or a handrail is mounted. Easier assembly of the posts can then be achieved using a mechanism involving the insertion of the lower end of the posts at the level of sleeves of complementary shape configured to achieve a male-female interaction. These sleeves are thus strategically mounted on the periphery of the height position intended to be secured. One solution consists in particular of installing these sleeves on the structure to be secured by integrating them directly into the structure of vertical walls and in particular into the structure of walls intended for formwork, so that a part of each of these sleeves is positioned outside the wall in which they are integrated.

[0004] However, during the various interventions on the construction site, slings, cables or other flexible accessories are likely to be moved against the various walls of the building under construction. Also, the various sheaths such as proposed by publications US 6279880B1 and EP 3851613, although integrated into the walls of a building, form projecting reliefs likely to obstruct easy movement of the flexible accessories against the surfaces of the building. Furthermore, under the effect of handling these flexible accessories, in particular by construction machinery, the sheaths installed by forming projections relative to the surface of the wall are likely to be accidentally torn off, so that the stability of the installed guardrails and the quality of the safety of the construction site are impaired.

[0005] The present invention aims to overcome this drawback by proposing a solution which makes it possible to limit the effect of the movements of slings, cables or other flexible accessories against the walls of buildings on the guardrail sleeves integrated into these building walls, without altering the safety qualities provided by the installation of guardrail sleeves integrated into the walls of a building under construction.

[0006] The invention thus relates to a hanging sheath for an accessory as detailed in the statement of main claim 1

[0007] The invention also relates to an assembly for producing a formwork wall as defined by the statement of main claim 9.

[0008] The invention will be better understood from the following description, which relates to the preferred embodiments, given by way of non-limiting example, and explained with reference to the appended schematic drawings, in which: [ Fig. 1 ] represents a schematic illustration of a first example of a hanging sheath 1 according to the invention in a bird's eye view, [ Fig. 2 ] represents a schematic illustration according to a side view of the first example of attachment sheath 1 according to the invention, 1 [ Fig. 3 ] represents a schematic illustration according to a side view of a second example of a hanging sheath 1 according to the invention, [ Fig. 4 ] represents a schematic illustration according to a side view of a third example of a hanging sheath 1 according to the invention, [ Fig. 5 ] represents a schematic illustration of an example of a hanging sleeve 1 according to the invention integrated into an assembly for producing a formwork wall according to the invention according to a sectional view in a plane perpendicular to the axis of the rectilinear structure of the formwork sleeve, [ Fig. 6 ] represents a schematic illustration of an example of a hanging sleeve 1 according to the invention integrated into an assembly for producing a formwork wall according to the invention according to a sectional view in a plane comprising the axis of the rectilinear structure of the formwork sleeve and perpendicular to the plane of the formwork wall.

[0009] The present invention relates to a hanging sheath 1 for an accessory, the sheath 1 comprises: an axial rectilinear structure 2 comprising at least one outer surface and one inner surface, the inner surface defining a housing 3, this housing 3 comprising an orifice at at least one first end 21 of the rectilinear structure 2, at least one cooperation interface 4 comprising at least one first portion 4a fixed to the outer surface of the rectilinear structure 2 and a second portion 4b whose end forms at least three non-aligned support points 4c, the cooperation interface 4 being configured to position the axis of the rectilinear structure 2 in a plane parallel to the plane defined by the at least three non-aligned support points 4c of the cooperation interface 4, the center of gravity of the attachment sheath 1 being positioned so that the axis passing through this center of gravity and perpendicular to the plane defined by the at least three non-aligned support points 4c crosses this plane at the level of an area delimited by these at least three non-aligned support points 4c, and, in a sectional plane comprising the axis of the rectilinear structure 2 and perpendicular to the plane defined by the at least three non-aligned support points 4c of the interface of cooperation 4, at least the second end 22 of the rectilinear structure 2 comprises an arrangement providing a continuous inclination between, on the one hand, the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c and, on the other hand, the outer surface portion 24 of the rectilinear structure 2 which is opposite it with respect to the axis of the rectilinear structure 2 so that the distance between, on the one hand, the second end 22 of the rectilinear structure 2 and, on the other hand, the perpendicular P to the axis of the rectilinear structure 2 passing through the fixing of the cooperation interface 4 on the outer surface of the rectilinear structure 2 has a greater length at the level of the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c than at the level of the outer surface portion 24 of the rectilinear structure 2 which is opposite to it.

[0010] The attachment sleeve 1 according to the invention allows its integration directly into the structure of a vertical wall 7 and in particular into that of a wall 7 intended for formwork at the time of production of the formwork wall 7. The various non-aligned support points 4c are adapted for the positioning of the attachment sleeve 1 so as to be strategically integrated into a wall 7 arranged in a substantially horizontal manner and on which a layer of binder 6 is deposited, or even spread, over all or part of the surface of the wall 7. The strategic position of the positioning of the rectilinear structure 2 of the sleeve 1 against the surface of a wall 7 corresponds, for example, to a position of the attachment sleeve 1 near an edge of this wall 7, so that the orifice of the rectilinear structure 2 of the sleeve 1 is aligned with the edge of the wall 7.Furthermore, once the binder 6 has solidified, the attachment sheath 1 is fixed to the wall 7, so that positioning this wall 7 in a vertical plane with the edge which carries the sheath 1 in the upper part will then allow positioning of the attachment sheath 1 along a substantially vertical axis of its rectilinear structure 2.

[0011] In addition, the attachment sheath 1 according to the invention comprises a rectilinear structure 2, the second end 22 of which has an inclination relative to the axis of the rectilinear structure 2. This inclination is arranged so that, relative to a reference plane substantially perpendicular to the axis of the rectilinear structure 2 and passing between several support points 4c of the cooperation interface 4, the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c has a greater length along the axis of the rectilinear structure 2 than the outer surface portion 24 of the rectilinear structure 2 which is opposite it relative to the axis of the rectilinear structure 2.Under these conditions, the inclination is arranged so that the second end 22 of the axis of the rectilinear structure 2 has a surface at least essentially oriented towards a direction opposite to the support points 4c of the cooperation interface 4. The continuity of the inclination also makes it possible to achieve surface continuity at the end 22 of the axis of the rectilinear structure of the sheath 1 so as to limit, or even avoid, any relief likely to create a parasitic attachment point with a sling or a construction site accessory moving against this surface.

[0012] During the vertical positioning of a wall 7 in which a hanging sleeve 1 according to the invention is integrated, the sleeve 1 is also oriented along a substantially vertical axis so that this inclination of the second end 22 of the axis of the structure 2 of the sleeve 1 is positioned to form the lower end of the sleeve 1. Also, the inclination of the second end 22 in the lower part of the sleeve 1, producing a surface oriented towards a direction opposite to the support points 4c of the cooperation interface 4, that is to say towards a direction opposite to the wall 7 which integrates the sleeve 1, produces a sliding surface intended to limit, or even prevent the gripping of a sling or a construction site accessory at this end 22 of the sleeve 1.The inclination of the second lower end 22 of the sheath 1 thus makes it possible to move away the sling or the construction site accessory which, when raised along the surface of the wall 7, would come into contact with the lower end 22 of the sheath 1. This surface then moves the sling or the construction site accessory away from the surface of the wall 7.

[0013] According to an example relating to a construction variant of the attachment sleeve 1 according to the invention, in a sectional plane comprising the axis of the rectilinear structure 2 and perpendicular to the plane defined by the at least three non-aligned support points 4c of the cooperation interface 4, the continuous inclination corresponds to a beveled arrangement of the second end 22 of the rectilinear structure 2. The beveled construction of such an inclination makes it possible to reduce, or even eliminate, the thickness of the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c and which has a greater length along the axis of the rectilinear structure 2, so that any risk of retention or snagging of a sling or a construction site accessory at this level is reduced.The angle of the bevel arrangement at the second end 22 of the sheath 1, in particular at the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c and which has a greater length along the axis of the rectilinear structure 2, is preferably less than 70°, or even within an interval between 30° and 60°, ideally of the order of 45°.

[0014] According to an example relating to a specific variant of construction of the attachment sleeve 1 according to the invention, the continuous inclination corresponds to a substantially planar arrangement. The construction of such an inclination has the advantage of presenting a simplified design which facilitates the implementation of the production of a sleeve 1 according to the invention. This planar inclination has an angular constancy with respect to the axis of the rectilinear structure 2, from the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c and which has a greater length towards the outer surface portion 24 of the rectilinear structure 2 which is opposite it with respect to the axis of the rectilinear structure 2.

[0015] According to an example relating to another variant of construction of the attachment sheath 1 according to the invention and forming an alternative to the variant according to which the inclination has a substantially planar arrangement, in a sectional plane comprising the axis of the rectilinear structure 2 and perpendicular to the plane defined by the at least three non-aligned support points 4c of the cooperation interface 4, the continuous inclination corresponds to a convex or concave arrangement of the second end 22 of the rectilinear structure 2. Such an inclination construction corresponds to a more complex arrangement than an arrangement whose inclination is substantially planar.In the context of a convex arrangement of the inclination, the second end 22 has a greater inclination relative to the axis of the rectilinear structure 2 at the level of the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c than at the level of the outer surface portion 24 of the rectilinear structure 2 which is opposite it relative to the axis of the rectilinear structure 2. Also, this convex arrangement allows the deflection of a sling or a site accessory in sliding at the level of the second end 22 of the rectilinear structure 2 so that the sliding of the sling or the accessory is deflected against a portion of the length of the outer surface 24 of the rectilinear structure 2 on the side opposite the different support points 4c of the attachment sleeve 1.In the context of a concave arrangement of the inclination, the second end 22 has a less significant inclination relative to the axis of the rectilinear structure 2 at the level of the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c than at the level of the outer surface portion 24 of the rectilinear structure 2 which is opposite it relative to the axis of the rectilinear structure 2. Also, this concave arrangement allows the production of a ramp which accelerates the deflection of a sling or a site accessory in sliding at the level of the second end 22 of the rectilinear structure 2 so that the sliding of the sling or the accessory is deflected to move the sling or the accessory away from the sheath 1.It should be noted that a construction combining concave and convex arrangements is also likely to be envisaged so as to benefit from the technical advantages provided by each of these two arrangements, so that, on the one hand, a portion having a concave arrangement is positioned at the level of the portion of the inclination close to the outer surface 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c and that, on the other hand, a portion having a convex arrangement is positioned at the level of the portion of the inclination close to the outer surface 24 of the rectilinear structure 2 which is opposite it with respect to the axis of the rectilinear structure 2.

[0016] According to an example relating to a specific variant of construction of the attachment sleeve 1 according to the invention, the continuous inclination corresponds to a curved arrangement. By way of example, this curved arrangement is likely to have a construction corresponding to a continuous curvature with a constant or variable radius of curvature. Similarly, by way of example, this curved arrangement is likely to relate to a construction whose curvature forms a broken arc produced by a succession of portions, planes or curves, which have angles between them.

[0017] According to an example relating to another variant of construction of the attachment sheath 1 according to the invention and capable of being combined with one or other of the variants previously detailed, in a sectional plane comprising the axis of the rectilinear structure 2 and perpendicular to the plane defined by the at least three non-aligned support points 4c of the cooperation interface 4, the edge at the second end 22 of the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c carries at least one projecting structure 25 which comprises at least one component oriented in a direction away from the axis of the rectilinear structure 2.According to this construction variant, the sheath 1 of the invention carries, at its second end 22, a projecting structure 25 adapted to prevent accidental insertion of a sling or an accessory between, on the one hand, the external surface 23 of the rectilinear structure 2 positioned opposite the support points 4c of the sheath 1 and, on the other hand, the surface of the wall 7 into which this sheath 1 is integrated.This projecting structure 25 projects beyond the second end of the sheath 1 in a direction comprising at least one spacing component relative to the axis of the rectilinear structure 2 so as to be oriented in the direction of the wall 7 into which the sheath 1 is intended to be integrated to fill the gap likely to exist between, on the one hand, the outer surface 23 of the rectilinear structure 2 positioned opposite the support points 4c of the sheath 1 and, on the other hand, the surface of the wall 7 into which this sheath 1 is integrated and form an obstacle to the insertion of a sling or an accessory into this space.

[0018] According to an example relating to a specific variant of construction of the attachment sheath 1 according to the previously detailed variant, the structure forming a projection 25 is arranged in the continuity of the inclination of the second end 22 of the rectilinear structure 2. Thus, in a sectional plane comprising the axis of the rectilinear structure 2 and perpendicular to the plane defined by the at least three non-aligned support points 4c of the cooperation interface 4, this projection 25 is arranged in the extension of the inclination of the second end 22, in particular at the level of the external surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c and which has a greater length along the axis of the rectilinear structure 2.By virtue of such a construction, the projection 25 provides a ramp portion for guiding the sliding of a sling or a moving construction site accessory against the surface of a wall 7, so that this sling or this accessory is directed to slide against the surface of the second end 22 of the rectilinear structure 2 and bypass the sheath 1 of the invention without being accidentally or involuntarily caught or retained therein.

[0019] According to an example relating to a specific variant of construction of the structure forming a projection 25, this projecting structure 25 provides at least one non-aligned support point 4c of the cooperation interface 4. The orientation of the projecting structure 25 from the edge of the second end of the rectilinear structure 2 of the attachment sleeve 1 so that it integrates at least one component oriented in a direction away from the axis of the rectilinear structure 2, has at least one component similar to that of the different non-aligned support points 4c of the cooperation interface 4. Also, the positioning and integration of the attachment sleeve 1 into a formwork wall 7 is likely to take advantage of the end of the structure forming a projection 25 to provide a support point against the surface of the formwork wall 7.According to this construction variant, the length of the structure forming a projection 25 is thus preferably determined so that it is sufficient for its end to be able to bear against the surface of the formwork wall 7 without disturbing the operation of the other non-aligned support points 4c of the cooperation interface 4, so as to cooperate effectively with these other support points 4c of the interface 4.

[0020] The invention also relates to an assembly for producing a formwork wall 7 comprising: a binder layer 6, at least one attachment sleeve 1 according to the invention of which at least a part of the cooperation interface 4 is embedded in the thickness of the binder layer 6 and of which the rectilinear structure 2 is positioned outside the binder 6, the orifice of the first end 21 of the rectilinear structure 2 of the attachment sleeve 1 being positioned substantially aligned with an edge of the formwork wall 7, the outer surface portion 23 of the rectilinear structure 2 positioned opposite the end of the support points 4c being positioned opposite the surface of the binder layer 6.

[0021] The assembly according to the invention associates, at a minimum, the attachment sleeve 1 of the invention with a supporting structure formed by a wall 7 and a binder 6. It should be noted that in the context of implementation on construction sites, the binder 6 is a concrete or a cement or any binder of known type and having equivalent properties.

[0022] According to an example relating to a preferred construction of the assembly according to the invention, the rectilinear structure 2 is positioned outside the binder layer 6 on the wall 7 so that at least a part of the cooperation interface 4 interacts with the binder 6, in particular the second portion 4b of the interface 4, while the orifice of the housing 3 remains in a position spaced apart from the binder layer 6 in order to avoid any blockage by this binder 6.

[0023] According to an example relating to a construction variant of the assembly for producing a formwork wall 7 of the attachment sleeve 1 according to the invention, at least one attachment sleeve 1 of which incorporates a projecting structure 25 capable of producing a non-aligned support point 4c of the cooperation interface 4, this structure forming a projection 25 is at least partially embedded in the thickness of the binder layer 6.

[0024] According to an example relating to another construction variant of the assembly according to the invention capable of being combined with the previous variant, this assembly also comprises at least one reinforcement 5 at least partially embedded in the thickness of the binder layer 6. The support points 4c and / or the structure forming a projection 25 of at least one attachment sleeve 1 then have spacings between them sufficient to span one or more elements of the reinforcement 5 and are arranged in the binder layer 6 so as to be positioned between elements of the reinforcement 5. Also, according to a specific variant of this construction example, the spacing between two of the support points 4c of the attachment sleeve 1 and / or of the structure forming a projection 25 is greater than the thickness of an element of the reinforcement 5.

[0025] It should be noted that the construction of an assembly according to the invention forming a formwork wall 7 is carried out from a wall 7 arranged in a substantially horizontal manner on which a layer of binder 6 is deposited, or even spread, over all or part of the surface of the wall 7, and at least one attachment sleeve 1 according to the invention placed at least one strategic position on the surface of the wall 7. This strategic position corresponds to a position of the attachment sleeve 1 close to an edge of the wall 7, so that the orifice of the rectilinear structure 2 of the sleeve 1 is aligned with the edge of the wall 7.Once the binder 6 has solidified, the attachment sleeve 1 is fixed to the wall 7, so that positioning the wall in a vertical plane with the edge which carries the sleeve 1 in the upper part will jointly allow the positioning of the attachment sleeve 1 so that the axis of the rectilinear structure 2 is oriented along a substantially vertical axis.

[0026] According to an example relating to another construction variant of the assembly and compatible with the previous construction variants, several hanging sleeves 1 are capable of being positioned parallel to each other and spaced apart along the same edge of a wall 7 so that the tilting in the vertical position of the wall 7 allows the orientation of the rectilinear structures 2 of each of the sleeves 1 along vertical axes which correspond to the respective axes of the vertical posts or uprights intended to be positioned there.

[0027] When the assembly according to the invention also comprises a reinforcement 5 embedded in the thickness of the binder layer 6, this reinforcement 5 is positioned on the wall 7 prior to the deposit of binder 6 and the placement of one or more attachment sleeves 1. The support points 4c and / or the structure forming a projection 25 of each of the attachment sleeves 1 then have sufficient spacing between them to span one or more elements of the reinforcement 5 and are inserted into the binder layer 6 so as to be positioned between elements of the reinforcement 5.

[0028] Of course, the invention is not limited to the embodiments described and shown in the attached drawings. Modifications remain possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention as defined in the claims attached in the appendix.

Claims

1. Attachment sheath (1) for an accessory, the sheath (1) comprising: - an axial rectilinear structure (2) comprising at least an outer surface and an inner surface, the inner surface defining a housing (3), this housing (3) comprising an orifice at at least a first end (21) of the rectilinear structure (2), - at least one cooperation interface (4) comprising at least a first portion (4a) fastened to the outer surface of the rectilinear structure (2) and a second portion (4b), the end of which forms at least three non-aligned bearing points (4c), the cooperation interface (4) being configured to position the axis of the rectilinear structure (2) in a plane parallel to the plane defined by the at least three non-aligned bearing points (4c) of the cooperation interface (4), the centre of gravity of the attachment sheath (1) being positioned such that the axis passing through this centre of gravity and perpendicular to the plane defined by the at least three non-aligned bearing points (4c) passes through this plane in a region delimited by these at least three non-aligned bearing points (4c), said sheath (1) being characterized in that, in a cross-sectional plane comprising the axis of the rectilinear structure (2) and perpendicular to the plane defined by the at least three non-aligned bearing points (4c) of the cooperation interface (4), at least the second end (22) of the rectilinear structure (2) comprises an arrangement forming a continuous inclination between, on the one hand, the outer surface portion (23) of the rectilinear structure (2) positioned facing the end of the bearing points (4c) and, on the other hand, the outer surface portion (24) of the rectilinear structure (2) that is opposite thereto with respect to the axis of the rectilinear structure (2) such that the distance between, on the one hand, the second end (22) of the rectilinear structure (2) and, on the other hand, the perpendicular (P) to the axis of the rectilinear structure (2) passing through the fastening of the cooperation interface (4) on the outer surface of the rectilinear structure (2) has a greater length at the outer surface portion (23) of the rectilinear structure (2) positioned facing the end of the bearing points (4c) than at the outer surface portion (24) of the rectilinear structure (2) that is opposite thereto.

2. Attachment sheath (1) for an accessory according to Claim 1, characterized in that, in a cross-sectional plane comprising the axis of the rectilinear structure (2) and perpendicular to the plane defined by the at least three non-aligned bearing points (4c) of the cooperation interface (4), the continuous inclination corresponds to a bevelled arrangement of the second end (22) of the rectilinear structure (2).

3. Attachment sheath (1) for an accessory according to either of Claims 1 and 2, characterized in that the continuous inclination corresponds to a substantially planar arrangement.

4. Attachment sheath (1) for an accessory according to either of Claims 1 and 2, characterized in that, in a cross-sectional plane comprising the axis of the rectilinear structure (2) and perpendicular to the plane defined by the at least three non-aligned bearing points (4c) of the cooperation interface (4), the continuous inclination corresponds to a convex or concave arrangement of the second end (22) of the rectilinear structure (2).

5. Attachment sheath (1) for an accessory according to Claim 4, characterized in that the continuous inclination corresponds to a curved arrangement.

6. Attachment sheath (1) for an accessory according to one of Claims 1 to 5, characterized in that, in a cross-sectional plane comprising the axis of the rectilinear structure (2) and perpendicular to the plane defined by the at least three non-aligned bearing points (4c) of the cooperation interface (4), the edge at the second end (22) of the outer surface portion (23) of the rectilinear structure (2) positioned facing the end of the bearing points (4c) bears at least one protruding structure (25), which comprises at least one component oriented in a direction away from the axis of the rectilinear structure (2).

7. Attachment sheath (1) for an accessory according to Claim 6, characterized in that the structure forming a protrusion (25) is arranged in continuity with the inclination of the second end (22) of the rectilinear structure (2).

8. Attachment sheath (1) for an accessory according to Claim 6, characterized in that the structure forming a protrusion (25) forms at least one non-aligned bearing point (4c) of the cooperation interface (4).

9. Assembly for forming a formwork wall (7), characterized in that it comprises: - a binder layer (6), - at least one attachment sheath (1) according to one of Claims 1 to 8, at least one part of the cooperation interface (4) of which is embedded in the thickness of the binder layer (6) and the rectilinear structure (2) of which is positioned on the outside of the binder (6), the orifice of the first end (21) of the rectilinear structure (2) of the attachment sheath (1) being positioned so as to be substantially aligned with an edge of the formwork wall (7), the outer surface portion (23) of the rectilinear structure (2) positioned facing the end of the bearing points (4c) being positioned facing the surface of the binder layer (6).

10. Assembly for forming a formwork wall (7) according to Claim 9 comprising at least one attachment sheath (1) according to Claim 8, characterized in that the structure forming a protrusion (25) is at least partially embedded in the thickness of the binder layer (6).

11. Assembly for forming a formwork wall (7) according to either of Claims 9 and 10, characterized in that the assembly also comprises at least one reinforcement (5) at least partially embedded in the thickness of the binder layer (6).

12. Assembly for forming a formwork wall (7) according to Claim 11, characterized in that the spacing between two of the bearing points (4c) of the attachment sheath (1) is greater than the thickness of an element of the reinforcement (5).

Images