FR3140100A1 - Paneled guardrail and waterproofing kit - Google Patents

Abstract

The invention relates to a rail (10) for guardrail (100) with panels (P), comprising a profiled metal body having a sole (15) substantially flat at least in segments located, in the installed state, in support against a support (S), with tubular housings accommodating screws (11) or threaded rods (19) for fixing to the support (S), characterized in that it further comprises at least in segments, at the longitudinal level screws (11), a strip of closed-cell cellular polymer material (1), of width corresponding to that of the sole (15), located, in the installed state, between the sole (15) and the support (S ). Figure for abstract: [Fig. 2]

Description

PANELED GUARDRAIL AND WATERPROOFING KIT

The invention relates to a rail for panel guardrail. Panel railings use panels, particularly glass or cut stone, to materialize a facade. Their function is both aesthetic and security.

Prior art

The panel guardrail rails are fixed to a support, floor or slab, by means of fixing screws which pass through a sole of the rail resting against the support and enter into dowels arranged in holes in the support. The panels are then inserted and held in the rail by fixing devices.

Guardrail rails and their installation meet important safety requirements. Being installed at height, for example on a balcony railing, a failure of the rail releasing a panel can cause significant damage or even injure a passer-by below.

Even without releasing the panel, when the poorly fixed rail can tilt, even by a small angle, less than a degree or tenth of a degree, the deflection of the upper edge quickly becomes large enough to harm the quality required for a guard. body

The guardrails are in particular subjected to resistance tests, involving predetermined forces to verify their ability not to deform beyond predetermined limit values, and to return to the rest position with empty deformations of less than predetermined limit values.

In addition, guardrails are often installed outdoors, and therefore subject to weather and climatic effects. In particular, the guardrails are subject to moisture infiltration into the holes in the support, into which screws or other means of fixing the rail are inserted.

The holes represent weak points in terms of waterproofing, since said holes will pass through any external layers ensuring waterproofing (sealing coating, resin, varnish, etc.).

Water can then reach the core of the support material, and/or the interior of the building, potentially leading to damage such as rotting of a wooden support or water infiltration through porous concrete. masonry. Water freezing and thawing cycles can in particular lead to the formation of microcracks which can ultimately lead to the release of the screws and therefore the rail.

It is known to inject putty around the screws, possibly to coat the sole of the rail with putty or to create an offset rail support which can be covered with a waterproof covering. The application of putty is carried out by the technician in charge of installing the guardrail, using the usual tools. This application of putty is therefore long and complex. Any imperfection in said application will result in infiltration.

The addition of a simple rubber seal under the rails is also not indicated, in that said seal introduces tilting play around the axis of the rail. A minimal play, even of a few tenths of a millimeter, at the base of the rail will induce a significant movement at the upper edge of the guardrail, of several centimeters.

In order to overcome the above problem, the invention proposes a panel guardrail, comprising a rail with a profiled metal body having a substantially flat sole at least in segments located, in the installed state, resting against a support , with tubular housings accommodating screws or threaded rods for fixing to the support,
characterized in that it further comprises at least in segments, at the longitudinal level of the screws, a strip of closed-cell cellular polymer material, of width corresponding to that of the sole located, in the installed state, between the sole and the support.

The use of a strip of closed-cell honeycomb material allows you to obtain a quality joint at the base of the rail. The closed cells are further crushed under the rail flange.

When the closed cells were crushed, the tape became incompressible. When a gap is present between the base of the rail and the support, the closed cells will be little or not compressed, and the strip of honeycomb material will close the gap that may be present, while maintaining sufficient pressure to ensure sealing.

Watertightness at the base of the rail is thus ensured, with significantly reduced movement of the panels.

The guardrail according to the invention may also have one or more of the following characteristics.

The strip of polymer material can be made of ethylene-propylene-diene monomer (EPDM).

The strip of polymer material may have pre-drilled locations located, in the installed state, under the screws.

The strip of closed-cell cellular polymer material can be cut into segments with a length at least equal to the width of the strip and the sole, located or configured to be located, in the installed state, at the level of the tubular housings.

The guardrail may further comprise caps, configured to cover, in the installed state, the heads of the screws or a bolt and to form a housing for putty around the heads of the screws.

The plugs may have two holes on an upper face, located when installed at the top of the screw, one for the injection of the sealant and the other for the evacuation of air.

If the guardrail includes screws it may also include bi-material washers, located in the installed state between the screw heads and the rail, comprising a metal thickness and a polymer material thickness.

The screw heads can be arranged in tubular housings, which the caps close.

If the guardrail has threaded rods, the caps may include pre-cut covers, with a diameter corresponding to the diameter of the threaded rods.

The invention also relates to a sealing kit for panel guardrails, characterized in that it comprises a strip of closed-cell cellular polymer material, configured to be placed, in the installed state, between a sole a rail and a support.

The strip of polymer material may in particular have a face coated with glue, on at least one part in contact with the sole of the rail in the installed state.

The sealing kit may further comprise a plurality of plugs configured to cover, in the installed state, the heads of screws or bolts of threaded rods, said plugs having two holes on an upper face, located in the installed state at the top of the screw, one for the injection of a sealant and the other for the evacuation of air.

The sealing kit may also include bi-material washers configured to be placed, in the installed state, between screw heads and the rail.

Description of figures

An exemplary embodiment is explained more precisely from the drawings, other advantageous improvements of the invention and advantages thereof being described.

We see in:

a sectional view of an embodiment of guardrail with water infiltration passages,

a sectional view of an embodiment of guardrail with the sealing means according to the invention,

a sectional view of an embodiment with a vertical support,

a schematic perspective of one embodiment of a strip of cellular polymer material for sealing means,

a schematic perspective of an alternative embodiment of a strip made of cellular polymer material,

a front view of a guardrail with strips of honeycombed polymer material according to the ,

a sectional view of a rail with the honeycomb polymer strip before it is crushed,

a sectional view of the rail and the strip of the previous figure after crushing,

a schematic perspective of a bi-material washer for sealing means,

a schematic perspective of a cap for sealing means,

a sectional view of a screw, the bi-material washer and the cap before injection of putty,

a sectional view of the screw, the bi-material washer and the cap after injection of putty,

a schematic perspective of an alternative embodiment of a cap according to the invention,

a sectional view of a threaded rod, bolt, bi-material washer and cap from the previous figure with injected putty.

detailed description

There shows a rail 10 for guardrail, with a screw 11 anchoring it in a support S, here a concrete slab, a metal plate or a wooden surface. The screw 11 passes through a hole made in the bottom of a central housing of the rail 10, and extends into a hole in the support S.

For orientation, rail 10 is considered longitudinal. The screw 11, and in particular its axis of revolution, is considered vertical, and the third direction is considered transverse. According to a particular embodiment, the support S can be vertical and be for example a facade or a wall ( ).

The rail 10 is configured to receive, during the assembly of the guardrail, a panel, for example a glass panel, which will be inserted and held in the central housing of the rail 10. The screw 11 is in particular completely inserted in a drilling, so that it does not hinder the subsequent insertion of the panel, and cooperates with a washer 13. The washer 13 is arranged between the head of the screw 13 and a shoulder which is the bottom of a tubular housing in which the head of screw 11 is housed.

The rail 10 has a sole 15 forming a support surface. The sole 15 has in particular two support strips 15A, 15B, located transversely on either side of the rail 10, and form two longitudinal support surfaces. The sole 15 also includes a ring 15C located around the hole in which the screw 11 is inserted.

The support strips 15A, 15B and the ring 15C are in particular support surfaces, on which the rail 10, and therefore the guardrail, rests.

There shows the rail 10, the screw 11 and the washer 13 in the absence of elements ensuring sealing, that is to say without the object of the invention. Three paths of water and humidity infiltration are represented in , and numbered I , II and III .

The first path I for water infiltration is located under the sole 15, from the upper surface of the support S, and joins the hole in the support S where the screw 11 is inserted. This first path I corresponds for example to water having accumulated on the support S, and which seeps under the sole 15 of the rail 10.

The drilling in the support S notably passes through all the sealing layers of said support S. For example, if the support S is made of concrete covered with a sealing layer, such as a sheet metal, the drilling passes through the layer of waterproofing.

Water infiltration into the support S can in particular become problematic if the water freezes. The expansion of the water changing into ice can split the support S or at least enlarge the drilling and therefore increase the movement of the rail 10 and the panel. Water infiltration into the concrete and masonry under the panel can also be problematic.

The second infiltration path II passes between the screw head 11 and the washer 13, then follows the screw 11 in the bore of the support S. The third infiltration path III passes between the washer and the shoulder of the tubular housing housing the screw head 11.

These two infiltration paths II and III correspond to the path taken by water having accumulated at the level of the housing of the screw head 11. Again the water will eventually reach the hole in the support S in which is inserted screw 11, with the effects previously described.

The rail 10, the screw 11 and the support S are shown with elements ensuring sealing in and 3.

The elements ensuring sealing include in particular: a strip of polymer material 1, a bi-material washer 13 and a cap 3. These elements are shown in more detail in the following figures.

The strip of polymer material 1 is placed between the rail 10 and the support S. The bimaterial washer 13 is placed between the screw head 11 and the shoulder of the drilling housing the screw 11. The cap 3 is placed on the screw head 11 which it surrounds.

In , the rail 10 is attached by means of the screw 11 to a vertical support S, for example a wall. The screw 11 is therefore horizontal, and said screw 11 and the housing in which it is inserted are located in a side wall of the rail 10. The sole 15 of the rail 10 is here the exterior face of the side wall carrying the housing and the screw 11. The strip of polymer material 1 is therefore oriented vertically, between this exterior face and the support S.

Screw 11 also has a cap 5 and a bi-material washer 13.

A first embodiment of a strip made of polymer material 1 is shown in detail in .

According to this embodiment, the strip of polymer material 1 is a continuous strip, extending over the entire length of the rail 10. The strip of polymer material 1 is of width equal to or slightly greater than that of the rail 10, and in particular of its sole 15, which is visible in and 3.

The strip of polymer material 1 is therefore present under the support strips 15A, 15B.

The strip of polymer material 1 may include pre-drilled holes 7 arranged in locations located, in the installed state, under the holes in the rail 10 into which the screws 11 are inserted.

There shows an alternative embodiment in which the strip of polymer material 1 is produced in the form of rectangular or square segments. In particular, rectangular segments have a length greater than their width. Their width is in particular equal to that of the sole 15 of the rail 10.

The strip segments of polymer material 1 have at their center a pre-drilled hole 7 for the passage of the screw 11.

There illustrates a guardrail 100 using strip segments made of polymer material 1 like those of the , shown in side view, in the plane of the length of the rail 10.

The guardrail 100 has a rail 10 in which panels P are arranged. The rail 10 has arches 9 on its sole, forming a passage for example for flowing water.

Between the arches 9, soles 15 forming support on the ground are present, at the level of screws 11 shown in dotted lines because they are normally invisible from the outside.

The soles 15 are rectangular or square in shape, and under said soles 15 are arranged strip segments of polymer material 1.

According to a particular embodiment, the strip of polymer material 1 may include a face coated with glue, and in particular with glue covered with a layer to be removed to allow bonding to the rail 10, like a sticker.

Figures 7 and 8 show the phenomenon of crushing of the strip of polymer material 1 by the sole 15 of the rail 10.

The strip of polymer material 1 is made of honeycombed ethylene-propylene-diene monomer (EPDM), with closed cells. Other polymers that can be honeycombed with closed cells can of course be used.

Figures 7 and 8 are sectional views along the transverse plane of the rail 10 and the strip of polymer material 1. In , the strip of polymer material 1 is not yet crushed by tightening the screw (not shown), and in the strip of polymer material 1 is crushed by the rail 10.

The strip of polymer material 1, when not crushed ( ), presents cells shown as circular in section. When the rail 10 crushes said strip of polymer material 1 ( ), the cells are deformed into ovals, or even completely crushed, being then represented by horizontal lines.

Under the support strips 15A, 15B, the cells are completely crushed. The polymer of the strip of polymer material 1 then has almost zero compressibility, which implies less movement of the rail 10 and the panels P which are attached to said rail 10. Under the ring 15C the strip of polymer material 1 is also completely crushed .

The strip of polymer material 1 will expand outside the support strips 15A, 15B and the ring 15C, and under these elements when a hollow in the support S is present, for example the unevenness of a slab in concrete.

The strip of polymer material 1 therefore essentially protects the water infiltration path numbered I by .

Figures 9 and 10 show sealing elements rather directed towards infiltration paths II and III of the .

These additional elements include in particular a bi-material washer 13 ( ) and a cap 3 ( ).

The bimaterial washer 13 is a washer comprising two layers of material, one metallic 13A and the other made of polymer material.

The plug 5 is circular in shape, with on its upper surface two holes 51, 53, also circular. It is made of polymer material.

The first hole 51 is of sufficiently large diameter to allow the insertion of a putty injector tip. The second hole 53 is of smaller diameter, and is present to allow air to escape.

Figures 11 and 12 illustrate the use of the elements of Figures 9 and 10.

There shows the screw 11 considered outside its housing. The bimaterial washer 13 is in particular arranged under the screw head 11, between said screw head 11 and the shoulder of the housing of the screw 11. The layer of polymer material of said washer 13 is in particular at the bottom, in contact with the shoulder of the screw housing 11.

The use of a simple polymer annular seal should be avoided because the screw 11 would shear said annular seal. The metallic thickness 13A of the bimaterial washer 13 distributes the forces of the screw head 11 and prevents shearing of the polymer thickness 13B.

The cap 5 is placed on the screw head 11 which it covers. The plug 5 is advantageously of the same dimension as the tubular housing of the screw head 11. The plug 5 then closes said housing of the screw head 11.

The plug 5 is in particular slightly larger in size than the screw head 11 and therefore an empty space is present between said plug 5 and said screw head 11. Putty 17 is then injected into said empty space.

The putty 17 and the two-material washer 13 then enclose the screw head 11, in a watertight manner ( ).

The bimaterial washer 13, by being pressed against the shoulder of the screw housing, prevents the infiltration of water via the infiltration path III .

The cap 5, by allowing a controlled injection of mastic, prevents the infiltration of water via the infiltration path II .

According to an alternative embodiment, the plug 5 does not have holes 51, 53, and the putty is applied in the plug 5 directly then said plug 5 is placed on the head of the screw 11.

There is a representation analogous to the of a plug 5 according to another embodiment. There illustrates the use of this plug 5 in a guardrail presenting in place of the screws 11 a threaded rod 19 and a bolt 21.

Cap 5 of the presents in addition to the holes 51, 53 a pre-cut cover 55, of circular shape and of diameter corresponding to the diameter of the threaded rods 19.

The cover 55 can be detached from the plug 5, which releases a third hole 55, of diameter corresponding to that of the threaded rods 19. When the plug 5 is placed on the bolt 21 which it covers, the threaded rod 19 passes through said hole 55.

The sealing elements comprising the strip of polymer material 1, the bimaterial washer 13 and the plug 5 can be associated directly with the rail 10. Said sealing elements are then packaged and distributed with the rail 10, in particular by being packaged with the rail 10, in number corresponding to screws 11 or threaded rods 19.

Said sealing elements can otherwise be packaged and distributed separately in the form of a sealing kit.

Claims (10)

Guardrail (100) with panels (P), comprising a rail (10) with a profiled metal body having a sole (15) substantially flat at least in segments located, in the installed state, resting against a support (S ), with tubular housings accommodating screws (11) or threaded rods (19) for fixing to the support (S),
characterized in that it further comprises at least in segments, at the longitudinal level of the screws (11), a strip of closed-cell cellular polymer material (1), of width corresponding to that of the sole (15), located, in the installed state, between the sole (15) and the support (S). Guardrail according to claim 1, characterized in that the strip of polymer material (1) is made of ethylene-propylene-diene monomer (EPDM). Guardrail according to claim 1 or 2, characterized in that the strip of polymer material has pre-drilled holes (7) arranged at locations located, in the installed state, under the screws (11). Guardrail according to claim 1, 2 or 3, characterized in that the strip of closed-cell cellular polymer material (1) is cut into segments with a length at least equal to the width of the strip and of the sole (15). ), located or configured to be located, in the installed state, at the level of the tubular housings. Guardrail according to at least one of the preceding claims, characterized in that it further comprises plugs (5), configured to cover, in the installed state, the heads of the screws (11) or a bolt (21 ) and form a housing for putty (17) around the heads of the screws (11). Guardrail according to the preceding claim, characterized in that the plugs (5) have two holes (51, 53) on an upper face, located in the installed state at the top of the screw (11), one (51 ) for the injection of the sealant (17) and the other (53) for the evacuation of air. Guardrail according to the preceding claim, comprising screws (11), characterized in that it further comprises bimaterial washers (13), located in the installed state between the screw heads (11) and the rail, comprising a metallic thickness (13A) and a polymer material thickness (13B). Guardrail according to the preceding claim, characterized in that the screw heads (11) are arranged in tubular housings, and in that the plugs (5) close said tubular housings. Guardrail according to claim 5 comprising threaded rods (19), characterized in that the plugs (5) comprise pre-cut covers (55), of diameter corresponding to the diameter of the threaded rods (19). Sealing kit for guardrail (100) with panel (P), characterized in that it comprises a strip of honeycomb polymer material (1) with closed cells, configured to be arranged, in the installed state, between a sole (15) of a rail (10) of the guardrail (100) with panel (P) and a support (S) on which the guardrail (100) is installed.