FR2883317A1 - Staircase`s step shuttering part for swimming pool, has hooks penetrating in windows of another shuttering part for hooking parts together, where pour volumes defined by walls of former part and by both parts extend over each other - Google Patents

Abstract

The part has longitudinal walls delimiting a pour volume. One wall has an extension extending below a plane of a base of the volume. Windows are arranged in the extension, and a series of hooks (11) is positioned above the base. The hooks penetrate in windows of another shuttering part for hooking the parts together, where the two parts delimit another pour volume. The pour volumes extend above each other so as to form pour volumes corresponding to two steps of a staircase.

Description

Room for bending an item of work such as steps of a staircase,

especially for a pool.

  The invention relates to the field of masonry.

  The invention is particularly applicable to the construction and construction of swimming pools. However, it will be understood that the invention may also be implemented for the realization of other types of constructions.

  The construction of pools involves the need to pour concrete blocks intended in particular to form the walls thereof. This operation, called banchage, is conventionally carried out using conventional formwork means of wood. These wooden structures must be removed after construction.

  Another formwork technique also conventionally used in the field of construction of swimming pools consists of using polystyrene binder blocks which remain in the construction after the concrete has been poured into them and is there solidified.

  These bunch blocks, however, have many disadvantages (positioning edge-to-edge guiding not securing their use, standard shapes do not allow to cast other elements than the walls themselves, risk of bursting under the pressure of concrete, risk of being parasitized by insects ...) Finally, it should also be stressed that such polystyrene blocks can be parasitized by different small animals, such as mainly insects, which are often discovered when changing the " liner "(lining element of pools).

  The patent document published under the number FR 2790777 describes a solution for overcoming the disadvantages of the bunching devices described above.

  According to this solution, a bancher assembly, in particular for the construction of swimming pools, comprises a plurality of plastic capping modules of substantially parallelepipedal or cubic shape open in their lower and upper parts, said modules being each constituted by the combination of two half-modules having male cooperation means and female cooperation means, said male and female cooperation means of each half-module being designed to be irreversibly associated with the female and male cooperation means of another half -module.

  Such a set to bancher thus has the advantage of including modules each made by assembling two half-modules that fit into each other permanently and can withstand significant internal pressures exerted by the concrete that flows there.

  Such modules are simple and fast to use. The half-modules can be made by plastic injection and thus have a low manufacturing cost.

  The object of the invention is in particular to propose a technique for the production of a workpiece that is compatible with a set of banners, such as that described in document FR-2,790,777 and which are part of the same general concept as this last.

  More specifically, the invention aims to provide a technique for the realization of a staircase, in particular for a pool.

  The invention also aims to provide such a technique that facilitates masonry tasks and is inexpensive to implement.

  The invention also aims to provide such a technique that allows the realization of steps in a flexible way, especially with regard to the dimensions and the number of steps.

  Another object of the invention is to provide such a technique which is simple in design and practical to use.

  These objectives, as well as others which will appear later, are achieved thanks to the invention which has for object a part to be fixed a workpiece, comprising at least one longitudinal wall intended to cooperate with another longitudinal wall for delimiting at least a first casting volume, characterized in that it comprises first attachment means extending along one side of said casting volume and second attachment means along the other side of said casting volume; casting volume, said binder part being intended to be associated with another binder part intended to delimit at least one second casting volume and having attachment means intended to cooperate with said first or second attachment means, said first attachment means and said second attachment means being positioned relative to one another so that said first and second volu casting channels extend one above the other so as to form casting volumes corresponding to at least two steps of a staircase.

  A part to bancher according to the invention makes it possible to simply and quickly make steps of stairs.

  In addition, the parts to bancher according to the invention can, like the bending modules with which they are intended to be associated, be manufactured by plastic injection and thus involve low manufacturing costs.

  Furthermore, it is understood that the number of parts assembled through their respective attachment means can vary as much as necessary, thus providing a modularity in the design and implementation of the corresponding stairs.

  According to an advantageous solution, this bending piece comprises two longitudinal walls intended to delimit said first casting volume.

  This gives a piece having a satisfactory rigidity vis-àvis including the pressure exerted by the concrete once it poured into the room.

  However, it should be noted that, without departing from the scope of the invention, one of the longitudinal walls delimiting the casting volume could be constituted by the wall of a second part, the two parts united, with their respective walls, delimiting together the casting volume.

  According to a preferred solution, one of said longitudinal walls has said first hooking means substantially at said first casting volume while the other longitudinal wall has an extension under said first casting volume, said extension having said second casting means hooking.

  This provides a simple and effective solution to allow the attachment of two parts according to the invention with each other, with a shift in height, from one casting volume to another.

  Advantageously, said first hooking means and said second hooking means are of the male type and the other of the female type.

  In this case, one of said longitudinal walls preferably has at least one hook, the other longitudinal wall having at least one window for receiving said hook of another part to be closed.

  The female male connection between the parts offers great simplicity and ease of assembly for the user.

  In addition, the hooks and windows are structural elements that can be obtained simply, in particular in the context of a plastic injection molding process of the part to bancher according to the invention.

  Advantageously, this bending piece has means for positioning at least one concrete reinforcing bar inside said casting volume.

  Thus, the reinforcing bars are correctly positioned to perform their function once poured into the concrete, the positioning means further contribute to maintaining them in position during the casting operation.

  According to an advantageous solution, this bending piece comprises at least one transverse stiffening rib extending in said casting volume. In this case, said positioning means are preferably formed in said transverse stiffening rib or ribs.

  The ribs thus have a dual function, that of stiffening and positioning. This tends to simplify the design of the part and, in the case of an injection molding, the corresponding mold.

  According to another characteristic., This piece to bancher includes cooperation means with at least one support element.

  In this way, it is possible to hang several pieces together, these being, according to the principle of the invention, offset in height relative to one another, the support being ensured reliably by means of elements Support.

  In this case, said cooperation means preferably comprise a housing which communicates with at least one recess opening into said casting volume.

  In some cases that will be explained in more detail later, it may indeed be desirable to pour concrete both above and below the part to be banchered.

  The recesses communicate with the accommodations allowing this.

  According to another characteristic, the bending piece comprises at least one longitudinal stiffening rib extending under said casting volume.

  Such a complementary casting volume can in particular be used in the case of the lowest step of the staircase, so as to pour a concrete base on which this step will rest.

  In this case, said at least one through opening preferably communicates with said complementary casting volume.

  According to yet another advantageous characteristic, said one or more longitudinal walls have interlocking means for coupling two pieces to be bent in the extension of one another.

  In this way, it is easy to increase the dimensions in width of the casting volume, and therefore of the corresponding step.

  Other characteristics and advantages of the invention will emerge more clearly on reading the following description of a preferred embodiment of the invention, given by way of illustrative and nonlimiting example, and the appended drawings among which: FIGS. 1 and 2 are perspective views of a bending piece according to the invention; - Figures 3, 4 and 5 are views of a bending part according to the invention, respectively from the side, from the front and from above; FIG 6 is an overall view of parts to bancher according to the invention assembled together.

  As mentioned above, the principle of the invention is to provide a part to be bowed having hooking means with another part to bancher of the same type, the attachment means being distributed to ensure a shift in height of the parts between they so as to be able to form stairs.

  This is illustrated by Figures 1 and 2 which show in perspective a part to be closed according to a preferred embodiment of the invention.

  As it appears in these figures, a part to bancher comprises two longitudinal walls 1, 2 delimiting between them and, with a bottom 3, a casting volume for receiving concrete (the part to be buried in the concrete to the concrete). after the pouring and remaining when the work is done).

  According to the principle of the invention, the part to be closed further includes fastening means distributed on the part according to two distinct heights (being considered the part oriented in its orientation of use, the bottom 3 being horizontal).

  According to the present embodiment, the wall 2 has an extension extending under the plane of the bottom 3, windows 21 being formed in this extension (Figures 1 and 4).

  The wall 1 carries for its part a series of hooks 11 positioned above the bottom 3 of the casting volume, these hooks being distributed and designed to penetrate the windows of another room to bancher of the same type and keep the two pieces hooked together. i7

  Two parts to bancher such as those illustrated in Figures 1 and 2 can be associated very quickly by simply engaging the hooks 11 of a room in the windows 21 of another room, thus forming a male-female connection.

  It is also conceivable that the hooks are carried by the extension 22 while lights are formed in the wall 1.

  Note that, according to another possible embodiment, the portion of the wall 2 extending above the bottom 3 can be replaced by an extension of the wall 1 upwards, the casting volume being then defined.

  by the wall 1 of a room and the extension of the wall 1 of another room once two pieces assembled.

  With reference to FIGS. 2 and 5, the bending piece according to a preferred embodiment of the invention furthermore has cylindrical housings 3 intended to each receive a supporting pile 4 (such as those illustrated in FIG. 6).

  These cylindrical housings 3 have an inner diameter corresponding substantially to the outer diameter of the piles 4, a flange 31 provided inside the housing 3 forming a stop against which the piles 4 come to bear to support the part to be closed.

  Note that a single housing 3 may be sufficient to support the room. However, several (in this case three) housing 3 of piles 4 are provided so that, in case of cutting the piece to shorten it in length, at least one housing is present.

  In addition, the cylindrical housings are opening into the casting volume delimited by the longitudinal walls 1 and 2 and are positioned between the extension 21 of the wall 2 and a longitudinal stiffening rib 5.

  This stiffening wall 5 extends over a height substantially equal to that, under the bottom 3, of the wall 2 and its extension 22 so as to define a complementary casting volume 51 (FIG. 3), under the bottom 3.

  This additional casting volume 51 can therefore be filled by filling the volume defined by the walls 1 and 2 with concrete, the concrete pouring through the through recesses 32 communicating with the housings 3.

  Conversely, if it is not desired to fill the complementary volume 51, plugs are reported on the necks 33 surmounting the housing 3.

  Furthermore, transverse stiffening ribs 6 (FIGS. 1 and 3) are provided for two of them (and for each according to the present embodiment) protrusions 61 in which cavities 611 are formed.

  intended to accommodate a concrete iron 7.

  According to a preferred embodiment of the invention, the bending piece has at one of its ends tabs 8 (FIGS. 1, 3 and 4) forming a recess with respect to the walls 1 and 2 and between these, each reducing the width of the end of the thickness of one of the walls 1, 2. Thus, it is possible to assemble at the end, and by interlocking, two parts to bancher.

  Referring to Figure 6, the main steps of implementation of a part to bancher are as follows: installation of support piles under a part to bancher; attachment of the part to be banbled on the walls of a work, and in particular on a module to bancher 9 such as those described by the patent document published under the number FR-2 790 777 (windows corresponding to the hooks of the room having been previously carried out in the module); hooking of a second part to bancher on the first part (via the male / female connection ensured by the hooks of one and the windows of the other room), then a third on the second and so on until a step is supported on the floor (the number of room can of course vary depending on the number of steps desired).

  2883317 9 It is noted that the establishment of piles is performed before hooking parts together for obvious practical reasons, and that the height of the piles of course decreases as the pieces approach the ground level.

  Concrete bars are then positioned in each of the pieces.

  Cover plugs of the recesses communicating with the pile housings are installed on each of the pieces, with the exception of the last piece, that is to say that resting at ground level.

  For this last piece, shutters are set up so as to plug the windows it has (so that the concrete is maintained in the complementary volume described above).

  The concrete is then poured into each of the rooms so as to fill the volume defined by the two longitudinal walls overlying the bottom of each room.

  For the room resting at ground level, pouring a quantity of concrete sufficient to fill, in addition, fill the complementary volume under it, the concrete pouring through the recesses communicating with the pile housing (the piles being not installed under this room). A concrete base is thus obtained for this last step.

The staircase is thus formed.

Claims (14)

  1. A workpiece bending piece, comprising at least one longitudinal wall (1) intended to cooperate with another longitudinal wall to define at least a first casting volume, characterized in that it comprises first means of hooking (11) extending along one side of said casting volume and second hooking means (21) along the other side of said casting volume, said bunk piece being intended to be associated with a another piece of shingle intended to delimit at least a second casting volume and having attachment means for cooperating with said first (11) or second (21) attachment means, said first attachment means (11) and said second hooking means (21) being positioned relative to one another so that said first and second casting volumes extend one above the other so as to form volumes of casting corresponding to at least two steps of a staircase.   2. part to bancher according to claim 1, characterized in that it comprises two longitudinal walls (1), (2) for defining said first casting volume.   3. A partition according to claim 2, characterized in that one of said longitudinal walls (1) has said first attachment means (11) substantially at said first casting volume while the other longitudinal wall (2). ) has an extension (22) under said first casting volume, said extension (22) having said second attachment means (21).   4. Banff member according to any one of claims 1 to 3, characterized in that said first attachment means (11) and said second attachment means (21) are of the male type and the others type female.   5. A partition according to claim 4, characterized in that one of said longitudinal walls (1) has at least one hook, the other longitudinal wall (2) having at least one window for receiving said hook of a another piece to bancher.   6. A partition according to any one of claims 1 to 5, characterized in that it has positioning means (611) of at least one concrete bar (7) within said casting volume.   7. Bezel piece according to any one of claims 1 to 6, characterized in that it comprises at least one transverse stiffening rib (6) extending in said casting volume.   8. Banff member according to claims 6 and 7, characterized in that said positioning means (611) are formed in said rib or ribs (6) of transverse stiffening.   9. Room to bancher according to any one of claims 1 to 8, characterized in that it comprises cooperation means (3) with at least one support element (4).   10. A partition member according to claim 9, characterized in that said means of cooperation (3) comprise: a housing which communicates with at least one recess (32) opening into said casting volume.   11. Bezel piece according to any one of claims 1 to 10, characterized in that it comprises at least one longitudinal stiffening rib (5) extending under said casting volume.   12. A partition according to claims 3 and 11, characterized in that said longitudinal stiffening rib (5) delimits with said extension (22) a complementary casting volume under said first casting volume.   13. The partition according to claims 10 and 12, characterized in that said or said recesses (32) open communicating with said complementary casting volume.   14. A partition member according to any one of claims 1 to 13, characterized in that said longitudinal wall or walls (1), (2) have interlocking means (8) for coupling two parts to bancher in the extension of one another.