WO2012032238A2

WO2012032238A2 - Hinged insulating formwork block having a thickened portion

Info

Publication number: WO2012032238A2
Application number: PCT/FR2011/051846
Authority: WO
Inventors: Paul Schreer
Original assignee: EUROMAC 2 (Société à Responsabilité Limitée)
Priority date: 2010-09-09
Filing date: 2011-07-29
Publication date: 2012-03-15
Also published as: WO2012032238A3; EP2428624B1; EP2428624A1

Abstract

The present invention relates to an insulating formwork block (1), essentially consisting of an inner wall, an outer wall connected to the latter by means of braces (18), and an end portion which extends at one end of said block (1) while being connected to the corresponding ends of the inner wall and of the outer wall, and which comprises at least a portion of a means for mutually linking with another such block (1), such that the assembly thereof makes it possible to achieve various orientations relative to one another about an axis. The block (1) is characterised in that the outer wall and the end portion are provided with a thickened portion substantially delimited by the extension of the inner wall, and in that, when two such blocks (1) are assembled together, the outer wall and the thickened portion of one block (1) are substantially delimited by the thickened portion of the other block (1). The invention can be used for the production of insulating formwork for the construction of building walls.

Description

Articulated insulating formwork block with extra thickness

The field of the present invention is that of insulating shuttering blocks, used in particular for the construction of building walls. The invention more particularly relates to a block intended to form a joint when assembled with another similar block.

No. 2,629,503 discloses a block intended to cooperate with another similar block, in order not to be aligned, but to be angularly shifted, so as to create an angle more or less open between two walls. This block thus has a rounded convex portion, rotatable in a concave complementary area of the complementary block. Each block therefore has both a convex rounded portion, and, offset but aligned in the axis of this rounded convex portion, a concave rounded portion. The convex portion of a block cooperates with the concave portion of another such block and vice versa, to obtain a pair of blocks that can be angularly offset relative to each other. It is thus possible to form angular walls, and this, ensuring a continuity of surface by the rounded circular.

Nevertheless, the new insulation standards require a greater thickness of insulation on the outside of the wall than on the inside. Current articulated insulating blocks, because of their symmetry, are not adaptable to different thicknesses on either side of the concrete casting. The continuity of the surface and the tightness at all the opening angles as well as a large angular amplitude can not today be combined simply by adding an extra thickness on the outside of the block.

The present invention aims to overcome these disadvantages by proposing an insulating shuttering block, whose outer wall is thicker than the inner wall, which can cooperate with another such block so as to obtain a pair of formwork blocks, orientable l relative to each other, and regardless of the opening angle of the blocks, sealing for the cast material and creating continuous surfaces at least on the largest angle side between these blocks.

For this purpose, the subject of the invention is an insulating shuttering block, intended for the production of walls, essentially consisting of a wall an outer wall, connected to the latter by means of spacers, and an end portion, which extends at one end of said block being connected to the corresponding ends of the inner wall and the outer wall; and which comprises at least a part of a means of mutual connection with another such block, so that their assembly allows to obtain different orientations of one with respect to the other about an axis. This block is characterized in that the outer wall and the end portion are supplemented by an extra thickness substantially delimited by the extension of the inner wall, and in that, when two such blocks are assembled, the outer wall and the extra thickness of one block are substantially delimited by the extra thickness of the other block.

The invention will be better understood, thanks to the following description, which relates to a preferred embodiment, given by way of non-limiting example, and explained with reference to the attached schematic drawings, in which:

FIG. 1 schematizes a block according to the invention, in its so-called upper part;

FIG. 2 schematizes a block according to the invention, in its so-called lower part;

- Figure 3 shows a side view of a block according to the invention;

FIG. 4 is a front view of a block according to the invention;

- Figure 5 shows a pair of blocks according to the invention, assembled, slightly closed;

FIG. 6 shows a pair of blocks according to the invention assembled and aligned, and

FIG. 7 gives a profile view of a block according to the invention.

The invention therefore relates to a block 1 of insulating formwork, intended for the production of walls, consisting essentially of an inner wall 2, an outer wall 3, connected to the latter by means of spacers 18, and a part of end 19, which extends at one end 4 of said block 1 being connected to the corresponding ends of the inner wall 2 and the outer wall 3, and which comprises at least a part of a means of mutual connection with another such block 1, so that their assembly allows to obtain different orientations of the one by The spacers 18, which make it possible to fix the inner wall 2 to the outer wall 3, are metal spacers 18 which, during manufacture, are cast at each of their ends. in one of the two walls.

Such a block 1 is used for the production of walls, pouring concrete in the space created between the inner wall 2 and the outer wall 3. It aims to be assembled to another similar block 1, so that thus create a pair of blocks 1 which can be aligned or form an opening angle 13, measured on the inside of the wall, that is to say on the side of the inner walls 2, more or less large. A pair of blocks 1 thus forms a hinge which can be more or less open, the blocks 1 can take several positions relative to each other about the axis 6, by rotation around the latter. The mutual linking means participates in defining these positions, which may be in finite or infinite number.

The mutual connection means, described below, guides the rotational movement of a block 1 with respect to the other around the axis 6, and / or fixes a block 1 relative to the other in an angular position. relative. It can therefore be the cooperation of a male element and a female element, such as a groove and a rib, or the cooperation of surfaces in contact, such as planes leaning against each other when the blocks 1 have a particular opening angle 13.

It is thus possible to form forms for walls forming between them angles of opening 13 different from 180 degrees and, more precisely, non-flat angles between flat walls. The blocks 1 according to the invention thus make it possible to possibly produce left walls for a building. The inner wall 2 and the outer wall 3 are furthermore made of an insulating material, such as expanded polystyrene. The stack of an outer wall 3 of insulation, a layer of concrete, then an inner wall 2, provides a wall both solid and having good insulating capabilities.

In addition, in the illustrated embodiment, the block 1 has the shape of a parallelepiped presenting an advance 8 creating an interface plane 9 located approximately halfway up the block 1, that is to say at equidistance from an upper plane 1 1 and a lower plane 12 delimiting the block 1, so that when two such blocks 1 are assembled, their interface planes 9 are substantially common. The axis 6 is perpendicular to the upper planes 1 1 and lower 12. The interface plane 9 therefore separates the block 1, on the one hand, in an upper part 16, extending between the interface plane 9 and the upper plane 1 1, and, on the other hand, in a lower part 17, extending between the plane of 9 and the lower plane 12. The end 4 is located at the top 16 of the block 1 and forms the advanced 8.

The block 1 has, in addition, an assembly axis 21, perpendicular to the inner wall 2 of the latter, parallel and equidistant from its upper planes 1 1 and lower 12 and intersecting the axis 6. The assembly of two blocks 1 is then, from an imaginary configuration where they are both in the same place and in the same position, by subjecting one of the two blocks 1 a rotation of 180 ° around the axis of assembly 1 of the one or the other block 1. Thus, when two blocks 1 are assembled, the outer walls 3 are on the same side, the axes 6 are common, as well as the interface planes 9 and the assembly axes 21, the upper portion 16 of one being at the lower portion 17 of the other.

According to the invention, the outer wall 3 and the end portion 19 are supplemented by an excess thickness 7 substantially delimited by the extension of the inner wall 2, and when two such blocks 1 are assembled, the outer wall 3 and the extra thickness 7 of a block 1 are substantially delimited by the extra thickness 7 of the other block 1, in each angular relative position that can take the pair of assembled blocks 1. In the illustrated embodiment, the extra thickness 7 has a circular shape, which creates a rounded fillet that guarantees a surface continuity on the wide angle side when the opening angle 13 is less than 180 degrees. A polygonal shape can also be considered for the extra thickness 7, the wide angle of the joint being then decomposed into a finite number of facets.

As mentioned above, this extra thickness 7 is intended to further improve the insulation capabilities. In addition, in the illustrated embodiment, the end portion 19, located at the end 4 of said block 1, has the shape of a rounded portion 10 joining the inner wall 2 and the outer wall 3, the excess thickness 7 having it also has a rounded shape at the end 4.

FIG. 1 illustrates the upper part 16 of the block 1. This upper part 16 comprises a portion of the inner wall 2, the outer wall 3 and the end portion 19. In the embodiment of FIG. 1, the end portion 19 forms a rounded portion 10 thus presenting itself as a hollow tube half, centered on the axis 6 of the block 1, itself located equidistant from the inner wall 2 and the outer wall 3. In the upper part 16 of the block 1, the extra thickness 7 is present along the entire outer wall 3 and extends along the end portion 19, in a similar shape section to the latter. It thus takes the form of a portion of hollow tube in the embodiment of FIG. 1. The thickness of the excess thickness 7 is homogeneous.

The excess thickness 7 is, in the upper part 16 of the block 1 and at the end portion 19, delimited by the extension of the inner wall 2. In fact, the inner wall 2 is defined, on the one hand, by a first external plane 15 of the block 1, delimiting said block 1 on the side of the dwelling, that is to say on the inside of the wall formed by the formwork, and, on the other hand, by a first internal plane 20 located vis-à-vis. The excess thickness 7 is, among other things, arranged at the end portion 19, but is delimited by the first internal plane 20. Thus, when two blocks 1 are assembled, the extra thickness 7 of one is delimited, in its upper part 16, by the inner wall 2 of the other block 1. The fact that the extra thickness 7 thus extends to the inner wall 2 helps to ensure the tightness of the outer side of the wall when the block pair 1 has an opening angle 13 less than 180 degrees. In addition, in this case, the extra thickness 7 extending along the end portion 19 ensures the surface continuity of the outer side of the wall.

In the illustrated embodiment, the circular shape of the excess thickness 7 at the rounded portion 10 ensures a perfect surface continuity of the pair of assembled blocks 1. Thus, when the opening angle 13 is less than 180 degrees, the two walls created are connected, on the wide angle side separating them, by a regular and continuous circular fillet, this surface continuity being guaranteed by the allowance 7 s extending at the end portion 19. Nevertheless, the end portion 19 and the portion of the extra thickness 7 which extends along the latter may have a polygonal and non-circular shape, thus ensuring a continuity of satisfactory surface at predefined opening angles 13, thanks to a decomposition of the corner into several facets formed by said polygonal shape.

FIG. 2 illustrates the lower part 17 of the block 1, in which it comprises part of the outer wall 3 and the wall 2. In a non-illustrated embodiment, the inner wall 2 and the outer wall 3 are further connected at their end so as to prevent access, by the cast material, to the cavity formed by the hollow of the end portion 19. When two blocks 1 are assembled, the inner wall 2 of a block 1 is substantially delimited, at the lower portion 17 of the latter, by the end portion 19 of the other block 1, located in the upper part 16 of the latter. This means that, for the same block 1, its inner wall 2, at the bottom 17, is delimited by the contour obtained after a rotation of its end portion 19, located in the upper portion 16, of an angle of 180 degrees around the assembly axis 21, and also by the contour obtained after at least one possible additional rotation about the axis 6. The fact that, in a pair of blocks 1 assembled, the inner wall 2 of a block 1 extends to the end portion 19 of the other block 1 ensures the tightness of the inner side of the wall when the blocks 1 have an opening angle 13 less than 180 degrees, as 5. When necessary, for opening angles 13 much less than 180 degrees, the inner wall 2 of the lower part 17 of a block 1 is adjusted to reach the level of the inner wall 2 of FIG. the upper part 16 of the other block 1, which contributes ensure the amplitude of the movement and sealing.

Thus, in the embodiment illustrated in FIGS. 1 and 2 and in which the end portion 19 is circular, for the same block 1, the inner wall 2 is delimited, at its lower part 17, by a circle of the same radius than that in which is inscribed the outer shape of the rounded portion 10 forming the end portion 19.

In addition, as shown in FIG. 2, when two blocks 1 are assembled, the outer wall 3 and the extra thickness 7 of one are delimited, at its lower part 17, by the extra thickness 7 of the upper part 16 of the other block 1. This means that, for the same block 1, its outer wall 3 and its extra thickness 7 are delimited, at the bottom 17, by the contour obtained after a rotation of its extra thickness 7, located in its upper part 16, at an angle of 180 ° around the assembly axis 21, and also by the contour obtained after at least one additional rotation about the axis 6.

Thus, in the illustrated embodiment, where the end portion 19 is of circular shape and where the extra thickness 7 has, by therefore, at this location, a circular shape, for the same block 1, the outer wall 3 and the extra thickness 7 are delimited, at the lower part 17, by a circle of the same radius as that in which the shape outer of the excess thickness 7 at the rounding 10.

In general, the lower part 17 of a block 1 is thus delimited by the contour obtained after a rotation of its upper part 16 by an angle of 180 degrees around its assembly axis 21, and also by the contour obtained after at least one possible additional rotation about the axis 6. This rotation about the axis 6 corresponds to the angle between the alignment position of the assembled blocks 1 and another position in which the outer wall 3 and the extra thickness 7 of a block 1 are substantially delimited by the extra thickness 7 of the other block 1. FIG. 2 further shows that, in the lower part 17, neither the inner wall 2 nor the outer wall 3 extend beyond of axis 6.

According to an advantageous characteristic, the shuttering block 1 is provided at its interface plane 9 with at least one of the two parts of the mutual connection means, in particular a male element and / or a female element.

Thus, in a first embodiment, the block 1 is only provided with the male element of the mutual connection means. At the level of the interface plane 9, the block 1 then has a male protruding element, such as at least one rib or a stud, intended to cooperate with a complementary shape at the level of another block 1.

In a second embodiment, the block 1 is provided with the female element of the mutual connection means. It therefore has, at the interface plane 9, at least one female element forming a cavity, such as a hole for a pin, a groove or a groove. Such a block 1 is compatible with a block 1 of the previous embodiment. The cooperation of the male part and the female part can provide guidance in the rotational movement, around their common axis, of two assembled blocks 1, as is the case with the circular groove and rib of the realization of the figures. The cooperation can also create blocked angular positions, as in the case of a cooperation between a pin and cavities or between bearing planes parallel to the axis 6, for example, if the mutual connection means has a shape polygonal.

In a third embodiment, the block 1 is provided with both the male element and the female element of the connecting means. Mutual. The male element may be a circular rib portion, projecting from the interface plane 9, the female element then being a circular groove portion of the same diameter. The male element and the female element succeed each other in the interface plane 9, the male element being found, after symmetry of an angle of 180 ° around the assembly axis 21, in the element female.

In a non-illustrated embodiment, the mutual connection means has a polygonal shape, thus allowing, when two such blocks 1 are assembled to each other, a finite number of orientations between them. Preferably, the mutual connection means thus consists of a polygonal rib cooperating with a polygonal groove of similar shape. The use of a means of mutual connection of polygonal shape limits to the number of its sides the maximum number of angular position that can take a pair of assembled blocks 1.

In the illustrated embodiment, as shown in FIGS. 4 and 5, the mutual connection means has a circular shape, thus allowing, when two such blocks 1 are assembled to one another, an infinite number of orientations. between them. The mutual connection means thus takes the form of both a circular groove, arranged in the interface plane 9 of a block 1 and a circular rib, arranged in the interface plane 9 of another block 1 The circular rib and groove have the same radius and are both centered on the axis 6. The two blocks 1 can therefore freely rotate relative to each other about the axis 6, the connecting means mutual relationship forming a pivot connection between them.

In an embodiment not shown, the end portion 19 and the extra thickness 7 which covers it are circular, the means of mutual connection being of polygonal shape. The circular allowance 7 thus ensures a perfectly rounded and perfectly continuous fillet on the wide angle side, for all possible opening angles 13, while the mutual connection means limits the number of possible opening angles 13.

According to a possible characteristic of the invention, the excess thickness 7 has predetermined areas of weakness in order to facilitate breakage, thereby allowing a greater range of possible orientations between two blocks 1 assembled to one another. These zones of weakness are found in the upper part 16 and possibly also in the lower part 17 of the block 1. These areas of weakness facilitate the breaking of the excess thickness 7, thus making it possible to reach opening angles 13 greater than 180 ° between two blocks 1 assembled. During installation, the excess thickness 7, at the top 16 of a block 1 and for its part extending along the end portion 19, is therefore broken, or sawed, or otherwise, for contact the inner wall 2 at the lower portion 17 of the other block 1 in a configuration having a large opening angle 13. This contributes to the range of motion and the tightness of the inner side of the Wall. In addition, always for opening angles 13 greater than 180 degrees, the excess thickness 7 of the lower portion 17 of a block 1 is, if necessary, adjusted to lead to the extra thickness 7 of the upper portion 16 of the other block 1, extending along its outer wall 3, which contributes to both the amplitude and the tightness of the pair of blocks 1 assembled.

In addition, for such angles, the end portion 19 contributes to the surface continuity of the interior side of the wall.

In a complementary manner, in order to easily reach opening angles 13 less than 180 °, and according to one possible characteristic, the inner wall 2 has predetermined areas of weakness in order to facilitate breakage, thereby allowing greater amplitude. possible orientations between two blocks 1 assembled to one another. The inner wall 2, at the bottom 17, therefore has a predetermined breaking pattern, in order to come into contact with the inner wall 2 of the other block 1, at its upper portion 16. This contact contributes to the tightness of the inner side of the wall.

In order to facilitate the manufacture of the block 1, and according to a possible characteristic shown schematically in Figures 1 and 2, the extra thickness 7 is at least partially reported on the rest of the block 1. It is therefore an additional component, manufactured independently, fixed on the remainder of the block 1 at the outer wall 3. Alternatively, and as is the case in the illustrated embodiment, the extra thickness 7 is integral with the rest of the block 1. The extra thickness 7 is therefore part of the block 1 and is not manufactured separately.

The continuity of the surface, on the side of the largest angle formed by the articulation between the two blocks 1, is thus guaranteed, in the case of an opening angle 13 greater than 180 degrees, by the part d end 19, in the upper part 16, which comes to form a part of the inner side of the assembly of the two blocks 1, and, in the case of an opening angle 13 less than 180 degrees, by the part of the thickening 7 extending along of the end portion 19, in the upper part 16, which comes to form a part of the outer face of the block assembly 1.

The amplitude of the articulation is therefore preferably obtained, for an opening angle 13 greater than 180 degrees, on the one hand, by adjusting, if necessary, the extra thickness 7, extending along the end portion 19 in the upper part 16 of a block 1, to the inner wall 2 of the lower part 17 of the other block 1, and secondly, by adjusting, if necessary, the extra thickness 7 in the lower part 17 d a block 1 at the extra thickness 7 of the upper part 16 of the other block 1, and, for an opening angle 13 less than 180 degrees, by adjusting, if necessary, the inner wall 2 of the lower part 17 from one block 1 to the inner wall 2 of the upper part 16 of the other block 1.

Finally, the sealing at the different opening angles 13 possible is ensured by the fact that, on the one hand, in the upper part 16, the extra thickness 7 which extends around the end portion 19 continues until extension of the inner wall 2, and, secondly, in the lower portion 17, the inner wall 2 of a block 1 extends to the end portion 19 of the other block 1.

Of course, the invention is not limited to the embodiment described and shown in the accompanying drawings. Modifications are 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.

Claims

1. Block (1) of insulating formwork, intended for the production of walls, consisting essentially of an inner wall (2), an outer wall (3), connected to the latter by means of spacers (18), and a part end (19), which extends at one end (4) of said block (1) being connected to the corresponding ends of the inner wall (2) and the outer wall (3), and which comprises at least a part of a means of mutual connection with another such block (1), so that their assembly makes it possible to obtain different orientations of one with respect to the other around an axis (6), block (1) characterized in that the outer wall (3) and the end portion (19) are supplemented by an extra thickness (7) substantially delimited by the extension of the inner wall (2), and that, when two such blocks (1) are assembled, the outer wall (3) and the extra thickness (7) of a block (1) are substantially delimited by r the extra thickness (7) of the other block (1).

2. block (1) of insulating formwork according to claim 1, characterized in that the block (1) has the shape of a parallelepiped with an advance (8) creating an interface plane (9) located at approximately half height of the block (1), that is to say equidistant from an upper plane (1 1) and a lower plane (12) delimiting the block (1), so that when two such blocks (1) are assembled, their interface planes (9) are substantially common.

3. block (1) insulating formwork according to any one of claims 1 to 2, characterized in that the end portion (19), located at the end (4) of said block (1), has the shape a rounding (10) joining the inner wall (2) and the outer wall (3), the extra thickness (7) also having a rounded shape at the end (4).

4. Block (1) insulating formwork according to any one of claims 1 to 3, characterized in that the mutual connection means has a polygonal shape.

5. block (1) of insulating formwork according to any one of claims 1 to 3, characterized in that the mutual connection means has a circular shape.

Insulating shuttering block (1) according to one of Claims 2 to 5, characterized in that the shuttering block (1) is provided with at its interface plane (9), at least one of the two parts of the mutual connection means, in particular a male element and / or a female element.

7. block (1) insulating formwork according to any one of claims 1 to 6, characterized in that the extra thickness (7) has predetermined areas of weakness to facilitate breakage.

8. Block (1) of insulating formwork according to any one of claims 1 to 7, characterized in that the inner wall (2) has predetermined areas of weakness to facilitate breakage.

9. block (1) of insulating formwork according to any one of claims 1 to 8, characterized in that the extra thickness (7) is at least partially reported on the rest of the block (1).

10. Block (1) insulating formwork according to any one of claims 1 to 8, characterized in that the extra thickness (7) is integral with the rest of the block (1).