DK2904171T3

DK2904171T3 - THINED HANGING IRON FOR HANGING A CONSTRUCTION ELEMENT ON A LOADING STRUCTURE

Info

Publication number: DK2904171T3
Application number: DK13767009.7T
Authority: DK
Inventors: Roger Arese
Original assignee: Etex Building Performance Int Sas
Priority date: 2012-10-04
Filing date: 2013-09-30
Publication date: 2017-02-27
Also published as: EP2904171A1; WO2014053441A1; ES2616065T3; FR2996570B1; PL2904171T3; EP2904171B1; FR2996570A1; AR092892A1

Description

DESCRIPTION

FIELD OF THE INVENTION

The present invention relates to the field of construction materials, in particular to a device for suspending a construction element, such as a hanging railing framework, from a supporting structure. The invention also relates to the construction of false ceilings involving the fitting of a framework using this hanger.

TECHNICAL BACKGROUND

The construction of a false ceiling generally comprises, in a first step, the fitting of a horizontal framework system (comprising hanging railings) and, in a second step, the fixing of a layer of an insulating material and/or panels, such as plasterboard panels, to the framework system. The framework system is generally held in place by a set of hangers which connect the hanging railings to bearing supports, such as beams or trusses.

The hangers customarily used in this context are essentially flat, monobloc elongate parts of which the thickness is generally about 1.0 mm and which comprise at one of their ends an element capable of supporting or of fixing hanging railings. These fixing means typically consist of slots which are complementary with rims situated on the hanging railings that make it possible to clip the said hanging railings onto the hangers. The other end of the hanger generally comprises orifices formed perpendicularly to the surface of the elongate part in order to receive means for fixing the hanger to its support, such as screws or pins.

For the installation of false ceilings, it is necessary to place a number of hangers on the support at regular intervals in order to support the framework system and, at the same time, the insulating material and/or the plasterboard panels.

It is also necessary to place the hangers at regular intervals in order to ensure that the plane of the false ceiling is straight and correctly supported while avoiding a situation in which the hanging railings bend under the weight of the insulating materials and/or plasterboard panels.

However, a considerable number of hangers becomes necessary if the surface to be constructed is large, thereby increasing the load bearing on the support. Weight is also an important element in the course of transport (for example on pallets) and handling of the hangers during the construction phase. Consequently, it is necessary to limit the mass of the hangers which are involved in the construction of this type of structure without thereby reducing the mechanical properties which make it possible to support with complete safety the framework, the insulating materials and also the plasterboard panels. There is therefore a real need for a new mechanically strong hanger which can be lighter. A reduction in the thickness of the hangers has not seemed conceivable hitherto given the fact that it would increase the risk that the end of the hangers or even the body would twist under the force associated with the parting of the hanging rail during the fixing of the frameworks by clipping. A reduction in the thickness was seemed even less conceivable when the hangers had to be long for the construction of a ceiling which is low with respect to the height of the structure .

Moreover, the body of the prior art hangers were usually reinforced along the plate as far as the end by ribs produced, for example, by stamping or else optionally by reinforcing rods fixed to the plate. These devices all require an additional quantity of material and are therefore disadvantageous in terms of weight and of costs.

Examples of hangers are described, for example, in patent application No. FR 2 623 541. Application FR 2 726 592 describes non-flat hangers comprising fins which form a rim on which the projections of the hanging railings bear. Nevertheless, the end of the body of the hangers which are used is not rounded, while the thickness of the plate used must be sufficiently large to allow the fins to part the edges of the hanging railing.

There are other complex hangers in the prior art which incorporate mechanical systems intended to adjust the orientation of the fixing, as in application FR 2 589 907. However, this type of hanger does not have a rounded edge capable of clipping directly onto hanging railings and are complex to produce, which has an impact on their manufacturing costs and their weight.

Thus, in application FR 2 623 541, the hanger is not sufficiently strong to be directly fixed to the hanging railing, this having to be done by means of a slide. FR 2 858 824 describes a device according to the preamble of Claim 1.

It has been possible to overcome these difficulties in an unexpected manner by means of the subject of the present invention.

SUMMARY OF THE INVENTION

The invention relates in the first instance to a device for suspending a construction element from a supporting structure according to Claim 1.

According to another embodiment of the invention, the end of the plate is adapted to receive a supporting element by clipping, the direction of which clipping is perpendicular to the plane of the cross section of the plate (11).

According to another embodiment of the invention, the end (2) is flanked on either side by two slots (22) for clipping along an axis which is perpendicular to the axis of the body (1) of the device.

According to another embodiment of the invention, the shoulder extends from the two slots (22) in the end (2) and covers the rounded area of the end.

According to another embodiment of the invention, the shoulder joins up with at least one of the two slots (22) when it extends over only a part of the end.

According to another embodiment, the shoulder has a width between 1 and 6 mm.

According to another embodiment of the invention, the device comprises one or more fixing holes in the body of the central plate (11), optionally along the axis of the body of the body (1) of the device.

According to another embodiment of the invention, the shoulder (21) is formed by folding about an angle between 10 and 140°, preferably between 70 and 110°, with respect to the surface of the end (12).

According to another embodiment of the invention, the shoulder is rounded.

According to another embodiment of the invention, the device takes the form of one and the same plate folded on itself one or more times.

According to another embodiment of the invention, the length is between 10 and 20 cm.

According to another embodiment of the invention, the device is produced from an optionally treated metallic material, preferably galvanized steel.

According to another embodiment of the invention, the plate of the body (1) has a thickness between 0.4 and 1 mm, preferably between 0.5 and 0.8 mm, and more preferably of about 0.6 mm.

Another aspect of the present invention relates to a method for manufacturing devices by folding one and the same plate.

According to another embodiment of the invention, the method concerns the fitting of construction elements, such as hanging railings, comprising a step of fixing a device according to the invention to a supporting structure.

According to another embodiment of the invention, the method comprises the subsequent step in which insulating materials and/or plasterboard panels are placed on the construction elements .

Another aspect of the present invention concerns a framework for false ceilings which is fixed to a supporting structure using the devices according to the invention.

The present invention makes it possible to overcome the disadvantages of the prior art. It provides, more particularly, a lightweight hanger which remains capable of withstanding the mechanical stresses associated with the weight of the framework system and with the insulating materials and/or plasterboard panels and considerably increases the breaking load, and hence the service load, of the hanger.

In addition, the present invention offers a real economic advantage since it makes it possible to reduce the quantity of material necessary for the manufacture of the hangers, namely of the order of about 20% of the manufacturing costs of the elements .

The devices according to the invention make it possible to lighten the hangers while increasing the breaking load, and hence the service load, while reducing the manufacturing costs .

BRIEF DESCRIPTION OF THE FIGURES

Figure la represents an example of a hanger according to the prior art.

Figure lb represents an example of a framework element of the hanging railing type.

Figure 2a represents in perspective a device according to the invention, showing the rounded end to be inserted into the construction elements to be suspended.

Figure 2b represents a device according to the invention in profile .

Figure 3 represents a metallic hanging railing supporting a false ceiling and fixed to a supporting structure using a hanger device.

DESCRIPTION OF EMBODIMENTS OF THE INVENTION

The invention is now described in more detail and in a nonlimiting manner in the description which follows.

With reference to Figures 2, the hangers of the invention essentially comprise an elongate body (1), in the form of a plate, comprising two ends. The main axis of the elongate body is illustrated by the axis of horizontal symmetry of the plate in Figure la.

The length of the hanger according to the invention can be between 10 and 40 cm, preferably between 10 and 20 cm, and more preferably of about 15 cm.

According to the present invention, the thickness of the body plate can be reduced in order to limit the quantity of material used in the manufacture. It is typically between 0.4 and 1 mm, preferably between 0.5 and 0.8, and more preferably of about 0.6 mm.

One of the ends (2) of the elongate body must make it possible to fix and to support a suspended construction element, such as a hanging railing.

With reference to Figure lb, representing an example of a framework element of the hanging railing type, and to Figure 3, representing the system for fixing a suspended ceiling, the hanging railings conventionally encountered in the field take the form of a C-shaped rectangular profile (4) of which the edges (41) are folded one or two times over the length to form a rim along the profile on each side of the open section (42).

In fact, the devices according to the present invention must make it possible to clip the hanging railings perpendicularly to the (directional) axis of the hanging railing. It is thus the case that each of the thin edges of the plate at the end (2) are flanked by a slot (22) in the end (2) in order to receive the rims of the projection of the hanging railing (41) .

The width of the end (2) must be sufficiently large to part the edges of the hanging railings during clipping and keep the rims (41) in the grooves (22). The width of the hangers according to the invention will depend on the size of the hanging railings to be used and will be determined by the operator. It is conventionally between 30 and 60 mm, preferably between 40 and 50 mm, and more preferably of about 4 5 mm.

The edging of the end (2) of the hangers of the invention is at least partially rounded, that is to say at least a part has the general aspect of a curve and is capable of parting an edge of the hanging railings when it is introduced into the plane of the cross section of the said hanging railings. This term also denotes successive flat sections which globally define a curve. Advantageously, the whole of the end of the hangers of the invention is rounded.

Advantageously, the end of the body of the hanger is wider than the body plate in order to make it possible to reduce the quantity of material to be used in the manufacture and the costs of raw material. A typical width of the body (1) of the hanger can be between 5 and 40 mm, preferably between 10 and 20 mm.

According to separate embodiments of the invention, the plane of the clipping head can be twisted relative to the plane of the body plate. That makes it possible to predetermine the orientation of the hangers as a function of the available surfaces on the supporting structure for fixing the hangers.

In order to allow them to be inserted into the hanging railings without the risk of twisting, the hangers of the present invention comprise, in place of a rib or of a reinforcement along the body, a fold forming a shoulder (21) on at least a part of the rounded edge of the end (2) . Typically, the shoulder can extend between the two grooves, but it can also extend over only a part of the end while covering at least a part of the rounded end. According to embodiments covered by the present invention, the shoulder extends from the two grooves and covers the rounded part of the end. The term "fold" is understood as the term conventionally used in the field.

According to variants of the present invention, the shoulder can be perpendicular to the surface of the plane of the end of the hanger, or else form an angle between 10 and 90 degrees with this plane. The shoulder can also be rounded in order to facilitate the clipping operation when mounting the hanging railings on the hangers.

Advantageously, this shoulder is produced by the end being singly folded or doubly folded on itself, thereby ensuring a sufficient area to exert a force on the rims of the hanging railings during clipping while maintaining a reduced thickness of the body plate constituting the hanger. Typically, such a shoulder makes it possible to have a width between 1 and 6 mm, preferably between 3 and 5 mm, and more preferably of about 4 mm, locally at the end of the hanger.

Advantageously, the edging extending between the slots (22) in the two edges of the end of the hanger is folded to form a shoulder. In this way, a part of the shoulder offers an additional surface for supporting a part of the hanging railing once the latter is fixed to the hanger. This area is represented in Figure 2b by the reference 23.

Advantageously, the elongate body (1) is traversed at one or more locations by orifices (23) , optionally along the central axis of the elongate body, in order to receive there a fixing means such as pins or the like (screws, nails, etc.) . These orifices are, for example, five or six in number and are arranged at a regular spacing from one another. The spacing in question can be, for example, about 1 cm.

One embodiment according to the present invention that offers greater mechanical properties pertains to a device in which the end is flanked on either side by two slots for clipping along an axis which is perpendicular to the axis of the body of the device and in which the shoulder extends over only a part of the rounded end and joins up with at least one of the two slots. In this embodiment, the width of the shoulder is between 1 and 6 mm.

The devices according to the invention are mounted in a conventional manner by fixing a part of the elongate body to the supporting structure (such as a beam or a truss for example, made of wood or other material) represented in Figure 3. The operator can drive pins through the orifices (23) into the bearing support, either manually or with the aid of a percussion means such as a hammer.

The orientation of the hangers depends on the inclination of the supporting structure with respect to the construction elements to be suspended. The fixing height depends on the thickness to be left between the support and the suspended structure, which optionally includes, in the case of suspended ceilings, the thickness of an insulating layer (glass wool, etc .) .

In any event, the rounded fixing end of each of the hangers must be oriented downward in order to receive there the construction elements to be suspended.

Once all the hangers have been completely fixed to the bearing support in the manner described above, the operator can clip the construction elements to be suspended and produce a framework which will allow said operator to fix there the suspended ceilings such as plasterboard panels.

Figure 3 gives an illustration of the final mounting between a bearing support of beam type, a hanger according to the invention and a hanging railing (4) (the folding of which does not appear in the figure and the bent-over rims (41) of which ensure the connection in the slots in the hanger) .

Claims

A device for suspending a structural member on a supporting structure comprising a body (1) formed by an elongated plate (11), one end (2) of which is intended to receive a supporting structural member by clipping, which is partially rounded to provide a rounded zone, the device being characterized in that its end comprises a projection (21) formed by bending on at least a portion of the rounded zone,

Device according to claim 1, the end (2) of which is arranged to receive a supporting element by clipping, the direction of which is perpendicular to the plane of the plate (11) cross-section.

Device according to claim 1 or 2, wherein the end (2) is flanked by two clipping grooves (22), one on each side, according to an axis perpendicular to the axis of the device (1).

Device according to claim 3, wherein the projection extends from the two grooves (22) of the end (2) and covers the rounded zone of the end.

Device according to claim 3, wherein the projection, when extending only over a portion of the end, reaches at least one of the two grooves (22).

Device according to one of claims 1 to 5, wherein the projection has a width of between 1 and 6 mm.

Device according to any one of claims 1 to 6, comprising one or more attachment holes in the body (11) of the central plate, possibly along the axis of the device (1).

Device according to one of claims 1 to 7, wherein the projection (21) is formed by bending at an angle of between 10 and 140 °, preferably between 70 and 110 ° relative to the surface of the end (12).

Device according to one of claims 1 to 8, wherein the projection is rounded.

Device according to one of claims 1 to 9, the length of which is between 10 and 20 cm.

Device according to one of claims 1 to 10, which device is made of a metallic material which may be optionally treated, preferably of galvanized steel.

Device according to any one of claims 1 to 11, wherein the plate (1) of the body has a thickness of between 0.4 and 1 mm, preferably between 0.5 and 0.8 mm, and even more preferably of approx. 0.6 mm.

A method of manufacturing devices according to any one of claims 1 to 12 by bending one and the same plate.

A method of mounting structural elements such as cladding, comprising a step of attaching a device according to any one of claims 1 to 12 to a supporting structure.

The recessed ceiling skeleton, which is secured to a supporting structure by means of devices as defined in any one of claims 1 to 12.