西班牙专利ES2598172A1 Sealing system for sealing of dilatation joints and placement method of the same (Machine-translatio

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专利摘要:
Sealing system for the sealing of expansion joints, and method of placement thereof. The present invention concerns a sealing system provided with a self-expanding seal intended for the sealing of expansion joints in constructions, said seal consisting of a first body 11 and a second body 12 elongated and facing connected by an impermeable flexible body 30. And by means of expanders 20 that produce an elastic thrust of separation of said first and second bodies being imprisoned inside the expansion joint to be sealed, and said seal including retainers 40 that keep it in a pre-compressed position, allowing its easy placement within the seal to be sealed, and that can be released by producing an instantaneous expansion of the self-expanding seal. (Machine-translation by Google Translate, not legally binding)
公开号:ES2598172A1
申请号:ES201630674
申请日:2016-05-24
公开日:2017-01-25
发明作者:José Mª FINA SEGURA
申请人:José Mª FINA SEGURA；
IPC主号:

专利说明:

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DESCRIPTION
SYSTEM AND SEALING FOR SEALING DILATATION JOINTS AND METHOD OF
PLACEMENT OF THE SAME
Technique Field
The present invention concerns the field of sealing systems for sealing dilatation joints and method of placement thereof, said sealing system being the type that has a self-expanding seal that includes expanders that allow its widening and adaptation. inside the expansion joint to be sealed, so that the variations in width of said expansion joint due to changes in temperature, or the variations in the disposition of its lateral planes due to differential settlement or collapse of adjacent bodies that conform it, can be absorbed by said seal without the sealing of the seal being affected. Additionally, a tool is also described that collaborates with the placement of said self-expanding seal, and the method of placing said seal.
Within this field and more specifically, the present invention focuses on the subfield of seals that, through different solutions, solve their function by providing elements that are exclusively located inside the expansion joints to be treated, and even more specifically within the latter sub-category to those that resolve vertical or horizontal expansion joints but located or formed within substantially vertical adjacent planes, and if they are formed within substantially horizontal adjacent planes, they are only applicable in a maximum joint length of two meters and only in case you have free drain at one end.
On the other hand, the condition of this seal and others existing in the market that resolve its function inside the expansion joints in an immediate longitudinal strip to the exterior planes, allow them to be applied in finished work or in rehabilitation of existing joints, and this in expansion joints existing in facades or exterior walls composed of a single finishing material, work, concrete, solid stone, rolled steel profiles, glass, etc., as in façade joints or composite exterior walls, that is finished with plasters, plasters, or plated, made for example on a ceramic or prefabricated block base.
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State of the art
Seals for expansion joints are widely known, there are many different models on the market, and can be grouped into three families.
On the one hand there are the seals based exclusively on the use of polyurethane putties, silicones, resins, etc., packaged in cartridges, which manually by means of "applicator syringes" are poured into the interior space of the joint for filling, sealing and finishing, previous manual implantation as a bottom inside the joint of prefabricated longitudinal pockets of spongy and compressible material, with the function of limiting the depth from the outside of the sealant filler to a preset dimension depending on the width of the joint, prior to pouring a longitudinal primer of both lateral contact surfaces by compatible adhesives.
These types of seals have a limited elastic capacity on numerous occasions less than the actual movements of the joints require, which is why when they occur, they either detach from the sides or tear in the middle of their section, producing a visible fissure and with it the loss of the required tightness. Another serious drawback is its easy destruction by vandalic action in accessible areas.
On the other hand, there are the seals based on the insertion of a self-expanding material inside the joint so that its expansion keeps the seal fitted inside the expansion joint while adapting to the changes in size of the joint due to temperature variations without losing its sealing properties.
Within this family, for example, products based on plastic or rubbery alveolar cannulas or weathers are known, with also elastic elastic metal embedded in the dough or without it, which can be compressed, manually or by means of a specific tool, to facilitate its introduction into expansion joints, so that when they expand inside they press against both inner side walls, thereby obtaining their sealing function.
However, the elasticity of these bodies, and therefore their ability to adapt to changes in the size of the joints, is usually quite limited, which is why the manufacturers of these products advise their gluing to the lateral walls in anticipation, In case of exceeding its expansive capacity, to avoid, no longer the loss of its sealing function that, given the case, always occurs, but possible detachments.
Within this same category there are those constituted by alveolar weatherstrips, but in order to avoid their detachment in case of exceeding their low expansive capacity,
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they include stapling them to mechanical point springs that are located in the innermost part of the joint. Despite this precaution of mechanical Indole and that avoids its detachment, the problem of its limited expansive capacity and its consequent loss of tightness persists.
In general, all this category of stamps are also easily deteriorated by vandalism in accessible sectors.
Finally there are the seals that are based on mixed systems, composed on the one hand by a pair of longitudinal mechanical elements with basic function of coupling to the support and fastening to it, and by another rubbery elements or flexible bands that collaborate and longitudinally linking the two previous elements, allow to contribute to the set its contribution sealant. Some of these seals additionally contribute in their external part some element that contributes to protect the set of vandalism actions that could harm the existing flexible bands.
Within these are on the one hand those that achieve the fastening of the two mechanical parts on both sides of the support by screwing, which apart from that require a complex installation because the plugs must be placed inside both side walls and in a oblique direction open to the outside, tend to produce chipping of the construction bodies adjacent to the dilatation joint as the screws are necessarily arranged very close to the edges.
The products described in EP0427756, FR2503821, FR153690 and FR1292205 are also known. All of them cite the use of a folded plate as an expansion spring that separates two ends provided to be in close contact with the inner faces facing the expansion joint.
The main problem of these products is that if the expansion force of the spring is weak, its installation is facilitated, but the seal is weakly fixed inside the expansion joint, being able to easily produce its intentional or accidental extraction, and being able to produce leaks. On the contrary, if the expansion force of the spring is very large, the placement of the seal inside the expansion joint is greatly complicated.
Finally, it is known, for example through US4767655, the use of sealing bands formed by a foamy open-cell multilayer material, which is precompressed and released at the time of placement. Said material expands
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recovering its original size with a delay, which allows its placement inside the expansion joint after its release and before its total expansion.
Brief description of the invention
The present invention concerns a sealing system for sealing expansion joints, and method of placement thereof, the system being formed by a self-expanding seal, and optionally by a placement tooling.
In accordance with a first aspect of the present invention, the proposed self-expanding seal is intended for sealing expansion joints formed between two rigid joint faces facing two adjacent building bodies. Typically said expansion joints are a separation of few centimeters (from 1cm to 5cm) between two construction bodies or structures that allow the expansion movements of said construction bodies or structures to be absorbed. Therefore, the seal provided for the sealing of said expansion joint must have a size that allows its insertion into said expansion joint, and it must also be able to absorb said movements, ensuring at all times its tightness.
Ace! as the proposed self-expanding seal comprises:
• a first body and a second body arranged with respective inner faces facing each other and spaced apart, said first and second elongated bodies being in a longitudinal direction, and said first and second bodies being provided to be introduced into said expansion joint with respective faces remaining exteriors of said first and second bodies facing said rigid joint faces;
• elastic expanders connected to said first and second elongated bodies producing an elastic spacing thereof in a direction of transversal expansion;
• a flexible waterproof body that connects said first and second elongated bodies in a loose manner.
Said first and second bodies are two elongated bodies in a longitudinal direction and mutually facing each other, intended to be introduced into said expansion joint, leaving respective outer faces of said first and second bodies facing the aforementioned two rigid joint faces. that define the expansion joint to be sealed.
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Said elastic expanders will be understood to consist of elements that can be elastically deformed by their compression in a certain direction, overcoming an opposing force offered by said elements, and that in removing said compression they will recover their initial geometry.
Said expanders are connected to said first and second bodies, and are configured to produce an elastic force of separation of said first and second bodies from one another in a direction of transverse expansion (perpendicular to the longitudinal direction), pushing their respective outer faces against the said board faces.
Said flexible waterproof body is the one that prevents the entry of water through the dilatation joint. Being said loose waterproof flexible body allows the relative movement of said first and second bodies to which it is connected maintaining the continuity of the waterproof flexible body, this being more or less smooth.
In addition, and in a novel way, the proposed self-expanding seal comprises:
• a releasable retaining device that maintains said self-expanding seal in a pre-compressed position, said elastic expanders being held under tension and said first and second bodies in mutual proximity;
said elastic expanders being selected between springs, flexion strips and flexion bars.
It will be understood that said releasable retaining device is provided to retain the expansion of the expanders, these being subjected to elastic tension.
According to an alternative embodiment of said first aspect of the invention, said first and second bodies are:
• flexible and elastic; or
• flexible and elastic and of a metallic or plastic material; or
• flexible and elastic flat rectangular cross-section straps; or
• Straps, flat rectangular section, flexible and elastic and of a metallic or plastic material.
The aforementioned flexibility allows said first and second bodies to be adapted to some little pronounced irregularities present in the two rigid facing faces that define the expansion joint, allowing a better seal.
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Additionally or alternatively it is proposed that said outer faces of the first and second bodies include a coating of elastomeric material between 0.5 and 3 mm thick. Said elastomeric material will be a relatively soft and flexible material, deformable under the force exerted by the expanders. This allows, as the self-expanding seal inserted in the expansion joint and being the retaining device released, the outer face 14 of the first and second bodies coated with said elastomeric material is pressed against the two rigid facing faces facing each other. that define the expansion joint, in this position the expansive force created by the expanders deforms the elastomeric material allowing it to absorb small irregularities of the mentioned two faces of joint, ensuring a tight seal.
This construction allows the same seal, with the same dimensions, can be coupled to joints of very different sizes, since the proposed seal can expand in the transversal direction of expansion more than 400% or more than 500% from the position pre-compressed to an expanded working position, there being of course a maximum expansion limit from which the seal does not work properly, considering that this limit will be below approximately 850%.
It will be understood that a transverse direction is an address comprised in a plane that cross-section the proposed seal.
Therefore being, for example, the thickness in the transverse direction of expansion of the seal of approximately 0.7 cm in a pre-compressed position, said seal can be adapted and perform its function in joints between 1 cm and 5 cm wide without Their sealing capabilities are affected.
In a preferred embodiment, a first portion of the expanders will have an articulated end with respect to the inner face of the first body and an opposite end movablely supported on the inner face of the second body. The rest of the expanders constitute a second portion and will have an articulated end with respect to the inner face of the second body and an opposite end movablely supported on the inner face of the first body, the expanders of the second portion being interspersed between the expanders of The first portion.
Preferably said articulation between one end of the expanders and one of the first and second bodies is produced by means of arm anchors arranged in said first or second body.
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It is further contemplated that the first portion of expanders and the second portion of expanders are connected to each other allowing relative displacement in the longitudinal direction of the first portion of expanders, together with the first body to which they are articulated, relative to the second portion of expanders, along with the second body to which they are articulated.
In a contemplated embodiment, said connection between the first and the second portion of expanders is produced by an intermediate bar, on which said expanders can slide in the longitudinal direction.
This arrangement allows that, in case of a relative displacement in the longitudinal direction between the two facing faces facing each other, for example a vertical displacement due to a differential settlement of the construction, the first and second bodies may be displaced relative to each other. , the ends of the expanders supported on the inner faces will slide over them in the longitudinal direction while still exerting expansive force, and without undergoing deformations that could alter the direction or intensity of the expansive force applied on the first and second bodies.
Said intermediate bar may preferably be connected to each expander at an intermediate point between its two opposite ends that are in contact with the inner faces of the first and second bodies. In this way the intermediate bar will be equidistant from the two ends of the expanders, and therefore centered with respect to the first and second bodies when they are aligned and facing each other.
In the event of a misalignment of the facing joint faces, for example due to a collapse of the construction that integrates the seal to be sealed, there will be a displacement of the first body with respect to the second body in a transverse direction. In this case, the expanders will rotate at their two ends with respect to the first and second bodies, thanks to which said ends are respectively articulated and supported, but the unaltered expansive force will be maintained at all times, so that the proposed seal is able to absorb this type of deformations without suffering leaks or detachments. In the case that the expanders are not straight, for example two lever arms of equal length joined at an angle at the point where they are connected to the intermediate bar, forming a kind of triangle in which one of the sides is non-existent, this displacement will cause the intermediate bar to be offset from the first and second bodies, but the expansive force will remain unchanged and constant.
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Thus, the proposed invention provides a seal capable of absorbing relative movements between the joint faces in an expansive transverse direction, due to the dilations, but also a displacement in the longitudinal direction, due for example to a differential settlement, and is even capable of absorb a transverse displacement perpendicular to the expansive transverse direction, for example due to a different collapse between the two constructions that determine the two facing faces of the joint. Therefore the proposed seal has the capacity to absorb sensitive displacements in three orthogonal axes with each other without losing their sealing capabilities.
Preferably the two opposite ends of the expanders press the inner faces of the respective first and second bodies by their geometric center, in order to avoid generating or transmitting bending or eccentric forces on said first and second bodies.
The expanders will be sized and distributed to produce an expansion force equal to or greater than 25 kg or 35 kg per linear meter of seal, being preferable to reach 40 kg per linear meter.
According to a further embodiment, it is proposed that said elastic expanders be a plurality of torsion springs arranged at regular intervals along the longitudinal direction of the self-expanding seal, each producing a force of separation of the first body from the second body in the direction of transverse expansion. By way of example, it is proposed that each of said torsion springs be formed from a single folded torsion bar, forming a first lever arm connected at one end to a first helical spring, connected to a second arm. of lever which in turn is connected in continuity to a third lever arm, and said third lever arm being connected to a second helical spring, in turn connected to a fourth lever arm, said first and second coaxial helical springs being, and said second and third lever arms being parallel to each other together forming an intermediate lever arm , and said first and fourth lever arms being parallel to each other.
Preferably said first and fourth lever arms will be connected to one of the first and second bodies, and the intermediate lever arm will be connected to the other of the first and second bodies.
As the torsion spring described is symmetrical, with two helical springs and two lever arms connected to each of the first and second bodies, the expansive force is produced in the direction of transverse expansion, without asymmetries or turns.
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Said connection between the first and fourth lever arms and one of the first and second bodies is proposed to be produced by means of arm anchors arranged in said first or second body. Preferably it will be the free ends of the first and fourth lever arms which will be connected to said arm anchors.
According to a proposed embodiment, said plurality of torsion springs are arranged, along the longitudinal direction, alternated in reverse orientations, so that a first group of alternate torsion springs have their corresponding intermediate lever arm connected to the first body, and a second group of alternating torsion springs, sandwiched between said alternate tension springs of the first group, have their corresponding intermediate lever arms connected to the second bodies.
According to another embodiment, all helical springs of all torsion springs are strung in an intermediate bar.
Additionally, it is proposed to include a plurality of trim supports attached at regular intervals on said intermediate bar, said trim supports being provided for anchoring a self-expanding seal concealment cover.
According to another planned embodiment, the aforementioned retaining device may consist of a plurality of first anchors arranged in said first body, a plurality of second anchors arranged in said second body, and connectors simultaneously connected to said first anchors and said second anchors, fixing its relative position, and preventing its displacement in the direction of transversal expansion.
Said first and second anchors can be, by way of non-limiting example, eyelets provided for, being the first and second bodies in mutual proximity, being aligned, and wherein said connectors consist of pins provided to be inserted through said eyelets. in a transverse direction perpendicular to the direction of expansion of the self-expanding seal.
The said releasable retaining device is associated, in a proposed embodiment, with a release mechanism, intended to produce the release of said releasable connectors and to produce the consequent expansion of the expanders, said release mechanism being integrated in a detachable tooling of the self-expanding seal after placement. Thus, said tooling includes said release mechanism which allows, preferably simultaneously, to operate all the means of retention of the self-expanding seal, after which the tooling can be separated from said seal, and can even be reused in the placement of others. self-expanding seals
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Said release mechanism is proposed that, by way of example, produce the displacement of connectors in a transverse direction perpendicular to the direction of expansion of the self-expanding seal, producing its extraction of first and second anchors arranged respectively in the first and second bodies of the self-expanding seal, producing its liberation. Thus, said connectors and said first and second anchors will form an integral part of the retaining device.
Said tooling is capable of being connected to the self-expanding seal by means of releasable connectors, for example a bar terminated with an elastic pin connected to the intermediate bar, allowing that during the operation of release of the connectors, and before the fixing of the seal in the dilatation joint due to the elastic expansion of the expanders, the seal is correctly maintained in its relative position with respect to the joint and the tooling through said releasable connectors.
Additionally, the addition of a centering mechanism is proposed to produce a correct positioning of said self-expanding seal at a pre-defined depth, and in a centered position with respect to said two rigid facing faces of two adjacent joint construction bodies. of dilatation. Said centering mechanism will preferably be releasable from the self-expanding seal and / or will be integrated in said tooling and / or will be adjustable. Thus, in a preferred embodiment, said tooling will incorporate, in addition to the release mechanism described above, said centering mechanism that will be adjustable to adapt to different sizes of dilatation joint. After the placement of the self-expanding seal the tooling, with its attached mechanisms, will be released from the self-expanding seal by releasing the releasable connectors.
According to one embodiment, said centering mechanism consists of at least two opposing abutment bodies movable in a direction parallel to the direction of transverse expansion simultaneously and symmetrically. Said stop bodies will remain in contact with the two facing faces of the joint, and their regulation will allow separating or bringing together said stop bodies to adapt them to the distance between said two facing faces.
The self-expanding seal described allows the expanders to have a large expansion force, which favors a correct seal, without this having a negative impact on the insertion process, thanks to the pre-compressed position obtained by the retaining device. In addition, the proposed seal adapts to dilatation joints of many different widths, therefore having great versatility, and allowing large variations in the size of the dilatation joint to be absorbed, is to compromise the seal offered.
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The proposed self-expanding seal can also absorb collapses or differentiated displacements of the two sides of the expansion joint, without losing the seal tightness, thanks to the fact that the first and second bodies can move independently at the same time as it maintains the expansive force of the expanders, which can absorb said differentiated displacements of the first and second bodies without affecting their operation, and thanks to the flexible flexible body connecting said first and second bodies loosely, thus also allowing a displacement differentiated from them without generating tensions in said waterproof flexible body that could damage the tightness of the self-expanding seal.
In case of a differential settlement between both sides of the expansion joint to be sealed, the first and second bodies can move relative to each other in the longitudinal direction, within a range of up to 1 or 2 cm, without the expanders lose their effect, since each individual expander is only fixed on one of the two bodies, and its end resting on the other body can move longitudinally while maintaining the expansive force.
In the event of a differential collapse between both sides of the expansion joint to be sealed, the first and second bodies can move relative to each other in a transverse direction perpendicular to the direction of expansion, within a range of up to 1 or 2 cm, without the expanders losing their effect, since each individual expander can pivot on the mentioned first and second bodies at its two ends, maintaining the expansive strength.
It is also proposed, according to a second aspect of the invention, a method of placing a self-expanding seal, for sealing expansion joints formed between two rigid joint faces facing two adjacent building bodies, the method being applied to a self-expanding seal equipped with:
• a first body and a second body arranged with respective inner faces facing each other and spaced apart, said first and second elongated bodies being in a longitudinal direction, and said first and second bodies being provided to be introduced into said expansion joint with respective faces remaining exteriors of said first and second bodies facing said rigid joint faces;
• elastic expanders connected to said first and second elongated bodies producing an elastic distance thereof in a transverse direction;
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• a flexible waterproof body that connects said first and second elongated bodies in a loose manner.
The aforementioned method includes, in a novel way, the following manufacturing steps:
a) positioning said first and second bodies in mutual proximity by stressing said elastic expanders;
b) retaining said first and second bodies in mutual proximity and retaining said elastic expanders under tension by a releasable retaining device;
and the following stages of colocation:
c) insert the self-expanding seal inside the dilatation joint to be sealed;
d) releasing the releasable retaining device, producing the consequent expansion of the elastic expanders, the first and second bodies being pressed against the aforementioned two rigid joint faces facing the expansion joint.
The described method therefore proposes to pre-compress the self-expanding seal and retain the seal in a pre-compression position that facilitates the introduction of the seal inside the expansion joint to be sealed, after which it is only It is necessary to release the retention to produce the elastic expansion of the self-expanding seal causing its firm fixation inside the expansion joint, while allowing its expansion without affecting the waterproof seal that the seal offers.
Additionally, it is proposed, in a non-limiting way, that stage b) of manufacturing also includes:
• connecting said releasable retainer device to a release mechanism, said release mechanism being integrated into a tooling connected to said self-expanding seal;
and that stage d) of placement also includes:
• actuate the tool release mechanism causing the release of the releasable retaining device.
It is also proposed that step c) of the method also include positioning the self-expanding seal inside the expansion joint at a pre-defined depth and centered between the two rigid joint faces facing each other, by means of a centering mechanism integrated in said tooling.
According to a further embodiment, said release of the releasable retaining device from step d) occurs simultaneously throughout the seal.
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Said release of the releasable retaining device of step d) is further proposed to occur by a displacement, in a transverse direction perpendicular to the expansion direction of the self-expanding seal, of a plurality of integrating connectors of said releasable retaining device, being said connectors connected to the release mechanism.
The present description also contemplates a third aspect of the invention, in which a tool for the placement of a self-expanding seal is proposed. Said tooling will be provided to be connected to a self-expanding seal for sealing dilatation joints formed between two rigid facing faces of two adjacent building bodies, said tooling including a release mechanism connected to a releasable retaining device of a self-expanding seal attached to said tooling, said releasable retaining device being provided to maintain said self-expanding seal in pre-compressed position in which elastic expanders of the self-expanding seal are retained under tension, and in which some first and second bodies are maintained in mutual proximity, said first and second bodies being elongated in a longitudinal direction and said expanders producing a force of separation of said first and second bodies in a direction of transverse expansion.
Thus, said tooling is connected to a self-expanding seal as described in the first aspect of the invention, said self-expanding seal being in a pre-compressed position. Said tooling comprises a release mechanism connected to the self-expanding seal retaining device so that the actuation of said release mechanism releases said releasable retaining device producing expansion of the self-expanding seal, after which the tooling is released from the seal self-expanding
According to an alternative embodiment said release mechanism is connected to a plurality of connectors constituting said releasable retaining device of the self-expanding seal, and wherein said release mechanism produces simultaneous release of all said connectors.
Additionally, it is proposed that said release mechanism produces the displacement of said connectors in a transverse direction perpendicular to the direction of expansion of the self-expanding seal, producing its extraction of first and second anchors arranged respectively in the first and second bodies of the auto seal -expandible, producing its release.
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Preferably said tooling includes centering mechanisms that place said tooling in a relative position with respect to said two rigid joint faces facing two adjacent building bodies, the self-expanding seal connected to said tooling being inserted inside said gasket. dilatation at a pre-defined depth, and in a position centered with respect to the width of said expansion joint.
It is also proposed that said centering mechanisms be adjustable, for example by means of at least two opposing stop bodies movable in a transverse direction in a simultaneous and symmetrical manner. Said stop bodies can interact with the two rigid facing faces that define the expansion joint, allowing said tooling to be centered relative to the expansion joint, whatever the width of said joint.
Ace! because, thanks to the proposed solution, a modular seal for the treatment of expansion joints is obtained whose static and firm connection to the support and its capacity for correct actuation are based solely on the friction against both facing faces facing each other, differently from the Sustaining procedures used by the previous known systems, without resorting to the application of mechanical plugs, or adhesives, or through mixed systems of adhesion-compression on site of materials or profiles adaptable manually, but this ability to achieve adequate friction for your Sustainability is obtained by the instantaneous release, at the time of placement on site, of its own expansive mechanical capacity, which is previously obtained by compression and blockage in the factory, a differential characteristic that is not present in any of the known systems.
The proposed seal also describes a work placement system based on the use of a tool or tool specifically designed for it, whose mission apart from facilitating the work of the operator, is double, at first and before the instant release occurs of the internal energy of the section or module to be placed, it allows to place it and fix it provisionally inside the joint to be treated, in a way centered to its width and precisely in height, and in a second step, by means of a trigger mechanism, allows to release Instantly all the internal energy of the section, with which it is already definitively fixed to the support, and at this moment the tool can be disconnected. This instantaneous release of all the energy of the section is essential to achieve the correct positioning of the inner body in the joint, since without it, that is to say by releasing it manually and therefore gradually create differential tensions and torsions in the system between its components, incompatible with the achievement of adequate and precise placement.
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A characteristic of the proposed seal is its versatility, since with the use of the same base model it is possible to obtain adequate treatment both for very small joint thicknesses, of the order of 10 mm, and for joint thicknesses of up to 50 mm, very versatility superior to that of known systems.
The proposed seal system consists on the one hand of a body that solves the functions of stable support and adaptability of the system to the support and its movements, achieve adequate sealing of the assembly, and facilitate subsequent stapling to that of a trim cover, and by the on the other hand, said embellishing cover constituted by a single compressible element with functions of finishing trim and in turn protective of the inner body, separation of parts that is established in turn with the minimum possible mechanical link between them in order to preserve the correct actuation and conservation of the inner body with respect to the actions to which the embellishing lid can be subjected.
Finally, it is pointed out that the proposed seal is the only system for treating structural dilatation joints in the market in which the centered and homogeneous compression that it exerts, due to its specific configuration, on both facing faces, minimizes the tensions between each one of the first and second bodies of the proposed seal and the corresponding work surfaces that define the joint to be sealed, thus offering the additional possibility, for work supports with a certain degree of excessive roughness or lack of planimetric, of sealing longitudinal extension, absent of tensions that could deteriorate it, by applying between the outer edge of each strap and the corresponding face, of a double cord of polyurethane or silicone putties existing in the market, without exercising said cord any supporting function, but simply by performing an adaptation function of the contact surface of the proposed seal with the rough surface of the joint faces on which it is supported.
A plurality of the proposed seals can be placed in successive alignment, until any joint length can be sealed. It is contemplated that the flexible waterproof body be extended beyond the first and second bodies, thus producing an overlap with the next seal, giving continuity to the tightness. This feature is what allows the seal to be considered modular.
It will be understood that references to geometric positions, such as parallel, perpendicular, tangent, etc. they admit deviations of up to ± 5 ° with respect to the theoretical position defined by said nomenclature.
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Other features of the invention will appear in the following detailed description of an example of realization.
Brief description of the figures
The foregoing and other advantages and characteristics will be more fully understood from the following detailed description of an exemplary embodiment with reference to the accompanying drawings, which should be taken by way of illustration and not limitation, in which:
Figure 1 shows a perspective view of the proposed self-expanding seal in an expanded position, formed by two opposing strips spaced apart by a plurality of expanders, which in this embodiment consist of torsion springs;
Figure 2 shows a schematic cross-sectional view of the self-expanding seal proposed in a pre-compressed position and retained in said position by releasable connectors;
Figure 3 shows the same view as Figure 2, the self-expanding seal being in an expanded position, the releasable connectors having been released, the self-expanding seal being trapped between the joint faces of the dilatation joint, and including a trim cap;
Figure 4 shows a perspective view of a seal in pre-compressed position retained by means of said releasable connectors, in position facing a tooling provided to be connected to said seal to hold it, center it and release said releasable connectors during the operations of placement;
Figure 5 shows the same view as Figure 4, the seal being connected to the tooling and all the releasable connectors being connected to straps constituting a release mechanism integrated in the tooling;
Figures 6, 7, 8 and 9 show successive stages of the proposed seal placement process, according to a preferred embodiment, in which Figure 6 shows as the pre-compressed seal, held through the tooling shown in Figure 5, it is introduced into a seal to be sealed; Figure 7 shows how the actuation of a centering mechanism integrated in the tooling allows the seal to be positioned in the center of the seal to be sealed; Figure 8 shows how the actuation of a release mechanism integrated in the tooling allows the release of the releasable connectors producing the expansion of the seal, to subsequently proceed to actuate the centering mechanism to release the tooling from the
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meeting; and Figure 9 shows the seal placed in position within the joint ready to be covered with a trim cover;
Figures 10 and 11 show two bezel holders according to two different embodiments, each provided with a support to be connected to the intermediate bar, another support for holding the bezel cover, and two spring-like legs that allow said support to be maintained. of bezel centered with respect to the first and second bodies;
Fig. 12 shows a view equivalent to the view shown in Fig. 2, but after a displacement of one of the two joint faces in a transverse direction perpendicular to the direction of expansion, for example due to a crash, showing as the The proposed seal adapts to said displacement without losing the sealing capacity through a rotation of the expanders;
Fig. 13 shows a table where, for different widths of dilatation joint to be treated, the absorption capacity of dimensional variations of the proposed seal in the transverse direction of expansion indicated as X axis, product of expansion movements, is specified in a transverse direction perpendicular to the direction of expansion indicated as the Y axis, product of crashes, and in a longitudinal direction orthogonal to the previous two indicated as the Z axis, product of differential settlements, indicating in each case the range of variation admitted by the seal retaining its sealing capacities, both in millimeters and in percentage.
Detailed description of an example of realization
The present invention aims at a self-expanding seal for the sealing of expansion joints applicable in the field of construction and rehabilitation of buildings, specifically in what refers to the resolution of vertical exterior expansion joints, in buildings of All types and by dry application, that is, without the use of adhesives or cements.
The attached Figures show an exemplary embodiment with an illustrative non-limiting character, according to which it is proposed, according to a first aspect of the present invention, a self-expanding seal for sealing defined expansion joints between two facing faces 1 rigid faces , for example between two structures or two adjacent facades separated by 1 to 5 cm.
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In Fig. 1, the proposed seal is shown according to an embodiment in which said self-expanding seal consists of a first body 11 and a second body 12 facing their respective inner faces 13 and spaced apart.
Said first body 11 and second body 12 are proposed to be two metal strips with some elastic flexibility elongated in the longitudinal direction, each of rectangular cross section and its two largest opposite faces being an inner face 13 facing the other strap, and a face exterior 14 intended to face the faces of joint 1 that define the dilatation joint.
A flexible waterproof body 30 will loosely connect the first and second body 12. Preferably said flexible flexible body 30 will be a flexible sheet or membrane attached to the outer faces 14 of said first body 11 and second body 12, preventing passage of water through the proposed self-expanding seal.
Preferably an elastomeric material 15 will be arranged on the outer face 14 of the first and second bodies 11 and 12, either between said outer face 14 and said waterproof flexible body 30, either on said waterproof flexible body 30. Said elastomeric material 15 it will offer a tight seal and a better adaptation to small irregularities of the joint faces 1.
Both first body 11 and second body 12 are connected to expanders 20 which, in the present embodiment, consist of a plurality of torsion springs distributed at regular intervals along their length that produce an expansion force that separates the first body 11 and second body 12 in a direction of transverse expansion perpendicular to the longitudinal direction.
Each of said torsion springs consists of a pair of helical springs 26 and 27 arranged symmetrically with their ends connected to lever arms 21, 22, 23 and 24, although other embodiments would be possible.
Thus, each torsion spring has at least one lever arm connected to the inner face 13 of one of the two facing strips, and at least one other lever arm connected to the inner face 13 of the other strap, although preferably each spring of torsion will have two lever arms connected to each strap, said spring being symmetrical.
Preferably each of said torsion springs is formed, as shown in Figure 1, of a single folded torsion bar folded forming a first lever arm 21 connected at one end to a first helical spring 26, joined by a
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end distal to a second lever arm 22 which in turn is continuously connected to a third lever arm 23 that joins a second helical spring 27, which is connected to a fourth lever arm 24, said first and second coaxial helical springs 26 and 27, and said second and third lever arms 22 and 23 being parallel to each other together forming an intermediate lever arm 25, and said first and fourth lever arms 21 and 24 being parallel to each other.
In the present embodiment all the springs of all the torsion springs are coaxial and are strung on the same intermediate bar 10 arranged in the longitudinal direction.
The expansive force of said torsion springs produces a separation of the first body 11 and second body 12 in the direction of transverse expansion, causing the outer face 14 thereof to be pressed against the two facing faces 1 that define the joint of dilatation
It is proposed that the expansive force of the expanders 20 be high, to ensure a firm and durable fixation of the seal within the expansion joint, but this could make it difficult to place it, since it is difficult to handle a self-expanding seal of, for example, several meters in length in the longitudinal direction, the whole being expanded before insertion into the expansion joint. That is why it is proposed that said self-expanding seal include a retaining device 40 that allows the seal to be locked in a pre-compressed position in which the expanders 20 are retained under an elastic tension, the first body 11 and second body 12 being in proximity. In this context it will be understood that in proximity it means in a position opposite to the position of maximum expansion of the self-expanding seal.
In the present embodiment it is proposed that said retaining device 40, include first anchors 41 disposed on the inner face 13 of the first body 11, and second anchors 42 arranged on the inner face 13 of the second body 12, each of said anchors 41 and 42 being provided to be coupled to a connector 43. By way of example it is proposed that said first and second anchors be obtained by stamping directly from the first bodies 11 and second bodies 12.
In a preferred embodiment said first and second anchors 41 and 42 have holes or eyelets, and are arranged so that, by placing the seal in a pre-compressed position, said holes or eyelets of the first and second anchors 41 and 42 remain aligned, allowing the insertion of pins through them to perform the functions of connectors 43. Each of said pins will prevent the separation of the first and
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second anchors 41 and 42, and therefore the expansion of the self-expanding seal. The simultaneous removal of all connectors 43 will therefore result in the simultaneous expansion of the entire self-expanding seal.
To facilitate the task of positioning and releasing the proposed seal, the use of a tool 5 connected to said self-expanding seal is suggested, said tooling 5 being provided with a release mechanism 50 that allows simultaneous removal of all connectors 43.
An example of said release mechanism 50 is proposed to be, by way of example, a guided longitudinal bar that can move in a transverse direction perpendicular to the direction of transverse expansion, said bar being connected to all retainers 43. An operator can pulling said bar as a trigger producing simultaneous extraction of connectors 43. In another embodiment of said actuator mechanism 50, shown in Figs. 4 to 8, said bar 51 cannot move, but can rotate, and is connected to the retaining device 40 by means of a belt 52, or strip of flexible material that can be wound on said bar 51. The rotary actuation of said bar 51 will therefore result in the winding of said strips or belts 52, producing the removal of the aforementioned connectors 43 in the transverse direction perpendicular to the direction of transverse expansion.
Said tooling 5 can also have a centering mechanism 60 consisting, for example, of two movable stop bodies 63 that can be moved simultaneously and oppositely in the direction of transverse expansion. Said stop bodies 63 can be inserted inside a dilatation joint and, subsequently, produce their simultaneous displacement in opposite directions until they come into contact with the facing faces 1 that define the expansion joint. Said stop bodies 63 can therefore center the tooling 5 and the self-expanding seal attached thereto to the expansion joint, whatever its width, and can even temporarily fix the tooling 5 in said position to facilitate the task of the operator.
An example of said centering mechanism 60 may be, by way of example, a double spindle mechanism 61 which, when rotated, produces an identical displacement of the two arms 62 connected to the respective abutment bodies 63 but in opposite directions, being said guided displacement.
Other mechanisms are possible, such as a pulley or gear system that reproduces the displacement of one of the stop bodies 63 on the other opposite stop body 63, but in the opposite direction.
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By means of the proposed self-expanding seal, a method of installing a retained seal in a pre-compressed position can be implemented inside a expansion joint, and proceed to release said seal to produce its expansion inside the aforementioned expansion joint, producing its seal, which constitutes a second aspect of the present invention.
In the sequence of Figures 6 to 9, successive stages of the proposed method are shown, in which in Figure 6 a self-expanding seal appears in a pre-compressed position connected to a tooling. The tooling is located on the mouth of an expansion joint, and has a centering mechanism 60 provided with two stop bodies 63 which, in this Figure 6, appear separated from the joint faces 1, and therefore not yet doing his centering task.
In Figure 7, said two stop bodies 63 are already pressed against the joint faces 1, a position reached by turning the spindle mechanism 61 described above. Figure 8 shows the self-expanding seal in an expanded position, having removed the connectors 43 from the eyelets of the first and second anchors 41 and 42, and thus leaving the first and second bodies 11 and 12 pressed against the two seal faces 1.
The removal of said connectors 43 is achieved by activating the rotation of a bar 51 integrated in said tooling 5 constituting the actuator mechanism 50. Said bar 51 is connected to belts 52 attached to said connectors 43, whereby said The rotation of the bar 51 causes the winding of the belt 52 around it causing the displacement of the connectors 43 causing the release of the retaining device.
In Figure 9 it is shown how the tooling has been decoupled from the self-expanding seal, which is retained between said two faces of joint 1 thanks to the expansive force made by the expanders 20, and as a trim cover 70 of seal concealment Self-expanding is fixed to said seal by means of a bezel holder 71 connected to said intermediate bar 10.
A detailed description of the proposed seal is attached below, including the geometry and preferred dimensions of each of the elements that constitute it, as well as the materials of which they are formed, for purposes of greater clarity.
Each longitudinal section of the seal is composed, among other elements, by two flat strips of equal section 30 mm x 0.8 mm and 2,555 m in length, which constitute said first and second bodies 11 and 12. Said strips shall be composed of steel stainless or
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of any other material with similar resistant and flexible characteristics, preferably resistant to oxidation, said metal or synthetic material being.
Said strips will be faced by one of their flat faces, which constitute the aforementioned inner faces 13, with the other two flat faces of the opposite strips being the outer faces 14 of the first and second bodies 11 and 12 provided to face the faces of joint 1 of a expansion joint to be sealed.
The flat and thin geometry and the position of said straps with respect to the joint faces 1 allow said straps to have flexibility and therefore a good capacity for flexible adaptation against the two facing faces 1 facing the expansion joint, not necessarily perfectly linear or parallel, due to the effect of an expansive mechanical force sandwiched between said two facing strips.
Said expansive force is provided by torsion springs or springs of stainless steel or any other metallic or synthetic material of similar elastic characteristics, which will be arranged serially between and along both straps, said springs constituting said elastic expanders 20 .
Said springs or springs are compressed between the flat inner faces of both straps by applying an expansive pressure on the seal. Said springs or springs apply said expansive force on points of the central longitudinal axis of the inner faces 13 profusely and regularly distributed, being connected to said points by means of ball links. Said ball joints allow exerting forces only perpendicular to the inner face 13 of the strips on said central longitudinal axis.
Each of these springs are of double symmetrical spiral torsion of coinciding axis, previously described as helical spring 26 and 27, with the two extreme lever arms, corresponding to the first and fourth lever arms 21 and 24, both orthogonal to the axis of the turns, each of these extreme arms incorporating an orthogonal pin to be attached to one of the strips by means of a ball link and transmitting pressure, and an intermediate lever arm 25 of continuous orthogonal double thread also to the axis of the turns, to press only by contact in the opposite direction of the previous arms to the opposite strap. The diameter of the spring wire is approximately 1.4 or 1.5 mm, and the length of the lever arms is about 40 mm, the total size of the spring in the direction of the spiral axis is 40 mm, with a position at rest forming the extreme arms with respect to the central double arm at an angle of 180 °.
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The specific configuration described in the previous section of the springs allows them to be distributed successively by inserting them through the central empty axis of their turns, to a longitudinal stainless steel rod that forms the intermediate bar 10, or any other metallic or synthetic material of similar characteristics. Its diameter is foreseen of 3 mm and its length similar to that of the strips, at the rate of a spring every 55 mm in an inverted position each one with respect to the previous one, that is to say the two arms with end pins of the first spring being left on the right insert, on the left, the same elements as the following.
By means of stamped or superimposed housings obtained or arranged serially along the central longitudinal axes of the facing inner faces 13 of each of the two strips, these are attached to the springs in the condition of labeling as follows, the strap from the right to the pin pairs of the lever arms located in the same hand, and the strap from the left in reverse, that is to the pin pairs of the lever arms located to the left.
A factory pre-compression of all the springs of a section is achieved, once previously they have been inserted into the longitudinal rod at the rate of one every 55 mm alternated position and alternately crimped to one or the other strapping, moving against each other by means of a tool designed for this purpose and at the end maintaining their respective inner faces 13 parallel plans almost in contact position. In turn, this closed position of maximum compression is immobilized at will by means of a releasable retaining device 40 arranged along the inner faces 13 of the strips every 110 mm at the factory.
The releasable retaining device 40 is comprised at each level by a pair of die-cut housings or overlapping sheaths corresponding to first anchors 41 arranged on a first strap and a few second anchors 42 on a second strap respectively and a stainless steel rod with a diameter between 1.8 and 2.0 mm, to be introduced in both first and second anchors 41 and 42 by way of connector 43 according to the direction and coincident axis in which these have been arranged, preferably perpendicular to the intermediate bar 10.
A flexible waterproof body 30 of 0.15 m by 2.605 m, and with a thickness of between 0.8 and 1.00 mm is arranged as a glued waterproof sheet connecting the two opposite flat faces 14 of both strips surrounding the bar intermediate 10 and the expanders 20 strung thereon, optionally interspersing between this sheet and each outer face 14 of each strap two ribbons of spongy elastomeric material 15 of
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width 25 mm and thickness of 2 or 3 mm which, in this embodiment, is proposed to be ethylene propylene diene rubber, known as EPDM. Said ribbons of elastomeric material 15 will provide the assembly with sealing capacity and an improvement in its adaptability to the small imperfections of both joint faces 1.
As can be seen with the proposed dimensions, the waterproof flexible body 30 has a length 5 cm greater than that of the strips, with said protruding 5 cm being left behind by the upper end of the strips, in order to be able to give continuity to the system of waterproofing with the immediate upper section by simple physical overlap. The vertical placement on site of the different sections of the seal must therefore be done from the bottom up. Said flexible flexible body 30 is raised with a width of sufficient clearance so as not to interfere in the action of the mechanical part of the seal, avoiding tightness.
A tooling 5 forms a specific tool for the placement on site of each section of the seal once attached to said tooling 5, allowing at first to position the seal correctly in height, in a second moment proceed simultaneously both to its essential focus on the inside the joint thanks to a centering mechanism 60, to its correct depth calibration, as to the blocking of the tool-seal assembly to the work, at a third time it allows to proceed simultaneously and instantly to the release of the connector assembly 43 in the form of rods of the retaining device 40 thanks to the actuation of a release mechanism 50, whereby the outer faces of both straps and the end lips of the impermeable sheet, when the set of torsion springs are released, will be projected impelled by these violently against the seal faces 1 of the seal to be sealed. Once these operations have been carried out simply by unlocking the tooling 5, by means of a specific device thereof, it can be removed for use in an adjacent contiguous section.
The placement of a trim cover 70, of about 2,555 m in length, provides concealment and linear protection of the assembly when introduced with a certain dimensional tolerance inside the dilatation joint to be treated, adjacent to the exposed opening of said joint. Its fixation is obtained by means of its coupling to the rest of the seal already placed inside the joint, through its crimping to specific stainless steel bezel supports 71 specific for this purpose linked to the intermediate bar 10, concentric with the turns of the springs, distributed along the intermediate bar 10 approximately every 44 cm. Each of these trim supports 71 has a pair of symmetric centering springs in order to center the trim cover 70

权利要求:
Claims (28)
[1]
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1 Sealing system, for sealing expansion joints formed between two facing faces (1) facing each other of two adjacent building bodies, comprising a self-expanding seal that includes:
• a first body (11) and a second body (12) arranged with respective inner faces (13) facing and spaced apart, said first and second bodies (11 and 12) being elongated in a longitudinal direction, and said first and second being bodies (11, 12) provided to be introduced in said expansion joint with respective outer faces (14) of said first and second bodies (11 and 12) facing said joint faces (1);
• elastic expanders (20) connected to said first and second bodies (11 and 12) producing an elastic spacing thereof in a direction of transverse expansion;
• a flexible waterproof body (30) that connects said first and second bodies (11 and 12) loosely;
characterized in that said self-expanding seal also includes:
• a releasable retaining device (40) that maintains said self-expanding seal in a pre-compressed position, said expanders (20) being retained under elastic tension and said first and second bodies (11 and 12) in mutual proximity;
said expanders (20) being selected between springs, flexion strips and flexion bars.
[2]
2.- Sealing system according to claim 1 wherein the first and second bodies (11 and 12) are:
• flexible and elastic; or
• flexible and elastic and of a metallic or plastic material; or
• flexible and elastic flat rectangular cross section straps; or
• Flexible and elastic flat rectangular cross-section straps, and of a metallic or plastic material.
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[3]
3. - Sealing system according to claim 1 or 2 wherein said outer faces (14) of the first and second bodies (11 and 12) include a coating of elastomeric material (15) between 0.5 and 3 mm thick.
[4]
4. - Sealing system according to any one of the preceding claims wherein
a first portion of the expanders (20) have an articulated end with respect to the inner face of (13) first body (11) and an opposite end movablely supported on the inner face (13) of the second body (12);
the rest of the expanders (20) constitute a second portion and have an articulated end with respect to the inner face of the (13) second body (12) and an opposite end movablely supported on the inner face (13) of the first body ( 11), the expanders (20) of the second portion being interspersed between the expanders (20) of the first portion.
[5]
5. - Sealing system according to claim 4 wherein said articulation between one end of the expanders (20) and one of the first and second bodies (11 and 12) is produced by means of arm anchors arranged in said first or second body ( 11 and 12).
[6]
6. - Sealing system according to claim 4 or 5 wherein the first portion of expanders (20) and the second portion of expanders (20) are connected to each other allowing relative displacement in the longitudinal direction of the first portion of expanders ( 20), together with the first body (11), with respect to the second portion of expanders (20), together with the second body (12).
[7]
7. - Sealing system according to claim 6 wherein said connection between the first and second portion of expanders (20) is produced by an intermediate bar (10), on which said expanders (20) can slide in the longitudinal direction .
[8]
8. - Sealing system according to claim 7 wherein said intermediate bar (10) is connected to each expander (20) at an intermediate point between its two opposite ends that are in contact with the inner faces (13) of the first and second bodies (11 and 12).
[9]
9. - Sealing system according to any one of claims 4 to 8, wherein the two opposite ends of the expanders (20) press the inner faces (13) of the respective first and second bodies (11 and 12) through their center geometric.
[10]
10. - Sealing system according to any one of the preceding claims, wherein the expanders (20) are sized and distributed to produce an expansion force equal to or greater than 20 kg or 30 kg per linear meter of seal.
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[11]
11. - Sealing system according to any one of the preceding claims 4 to 10, wherein the elastic expanders (20) are a plurality of torsion springs arranged at regular intervals along the longitudinal direction of the self-expanding seal, producing each a separation force of the first body (11) with respect to the second body (12) in said transverse expansion direction.
[12]
12. - Sealing system according to claim 11 wherein each of said torsion springs is formed of a single folded torsion bar folded forming a first lever arm (21) connected at one end to a first helical spring (26), attached at a distal end to a second lever arm (22) which in turn is continuously connected to a third lever arm (23) that joins a second helical spring (27), which is connected to a fourth lever arm (24), said first and second helical springs (26 and 27) being coaxial, and said second and third lever arms (22 and 23) being parallel to each other together forming an intermediate lever arm (25), and said first and fourth lever arms (21 and 24) being parallel to each other.
[13]
13. - Sealing system according to claim 12 wherein the first and fourth lever arms (24) are articulated with respect to the inner face (13) of one of the first and second bodies (11 and 12), and where the arm The intermediate lever (25) is movable on the inner face (13) of another of the first and second bodies (11 and 12).
[14]
14. - Sealing system according to claim 12 or 13 wherein all the coil springs (26 and 27) of all the torsion springs are coaxial and are threaded into an intermediate bar (10).
[15]
15. - Sealing system according to claim 14, wherein a plurality of trim brackets (71) are attached at regular intervals on said intermediate bar (10), said trim brackets (71) being provided for anchoring a cover Trim (70) of concealment of the self-expanding seal.
[16]
16. - Sealing system according to any one of the preceding claims, wherein said retaining device (40) consists of a plurality of first anchors (41) disposed in said first body (11), a plurality of second anchors (42) arranged in said second body (12), and of connectors (43) connected simultaneously to said first anchors (41) and to said second anchors (42), fixing their relative position.
[17]
17. - Sealing system according to claim 16 wherein said first and second anchors (41 and 42) are eyelets provided for, the first and second bodies being (11
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and 12) in mutual proximity, to be aligned, and wherein said connectors (43) consist of pins provided to be inserted through said eyelets in a transverse direction perpendicular to the direction of expansion of the self-expanding seal.
[18]
18. - Sealing system according to any one of the preceding claims, wherein said releasable retaining device (40) is associated with a release mechanism (50), intended to produce the release of said releasable retaining device (40) and the consequent expansion of the expanders (20), said release mechanism (50) being integrated in a tooling (5) detachable from the self-expanding seal after placement.
[19]
19. - Sealing system according to claim 18 wherein said release mechanism (50) produces simultaneous release of the retaining device (40) throughout the seal.
[20]
20. - Sealing system according to claim 18 or 19 wherein said release mechanism causes the displacement of connectors (43) in a transverse direction perpendicular to the direction of expansion of the self-expanding seal, producing its extraction of first and second anchors arranged respectively in the first and second bodies (11 and 12) of the self-expanding seal, producing its release.
[21]
21. - Sealing system according to any one of the preceding claims 18 to 20, wherein a centering mechanism (60) positions said self-expanding seal at a pre-defined depth, and in a centered position with respect to said two faces of joint (1) facing rigid of two adjacent building bodies of the dilatation joint.
[22]
22. - Sealing system according to claim 21 wherein said centering mechanism (60) is releasable from the self-expanding seal and / or is integrated in said tooling (5) and / or is adjustable.
[23]
23. - Sealing system according to claim 22 wherein said centering mechanism (60) consists of at least two opposing stop bodies (63) movable in a direction parallel to the direction of transverse expansion simultaneously and symmetrically.
[24]
24. - Method of placing a self-expanding seal, for sealing expansion joints formed between two rigid joint faces (1) facing two adjacent building bodies, the method being applied to a self-expanding seal equipped with:
• a first body (11) and a second body (12) arranged with respective inner faces (13) facing and spaced apart, said first and second bodies (11 and 12) being elongated in a longitudinal direction, and said first and second being bodies (11 and 12) intended to be introduced into said gasket of
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dilatation being respective outer faces (14) of said first and second bodies (11 and 12) facing said rigid joint faces (1);
• elastic expanders (20) connected to said first and second elongated bodies (11 and 12) producing elastic spacing thereof in a transverse direction;
• a flexible waterproof body (30) connecting said first and second elongated bodies (11 and 12) loosely;
characterized in that said method includes the following steps:
a) positioning said first and second bodies (11 and 12) in mutual proximity by stressing said elastic expanders (20);
b) retaining said first and second bodies (11 and 12) in mutual proximity and retaining said elastic expanders (20) under tension by a releasable retaining device (40);
c) insert the self-expanding seal inside the expansion joint to be sealed;
d) releasing the releasable retaining device (40), producing the consequent expansion of the elastic expanders (20), the first and second bodies (11 and 12) being pressed against the said two joint faces (1) facing the joint dilatation
[25]
25. - Method according to claim 24 wherein step b) of manufacture also includes:
• connecting said releasable retainer device (40) to a release mechanism (50), said release mechanism (50) being integrated into a tooling (5) connected to said self-expanding seal;
and including said step d) of placement in addition:
• actuate the release mechanism (50) of the tooling (5) causing the release of the releasable retaining device (40).
[26]
26. - Method according to claim 24 wherein step c) further includes positioning the self-expanding seal inside the expansion joint at a pre-defined depth and centered between the two rigid joint faces (1) facing, by means of a centering mechanism (60) integrated in said tooling (5).
[27]
27. - Method according to claim 24 or 25 wherein said release of the retaining device (40) releasable from step d) occurs simultaneously throughout the seal.
[28]
28. - Method according to claim 25, 26 or 27 wherein said release of the retaining device (40) releasable from step d) is produced by a displacement, in a
5 transverse direction perpendicular to the expansion direction of the self-expanding seal, of a plurality of connectors (43) integrating said retaining device (40), said connectors (43) being connected to the release mechanism (50).

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US10935138B2|2021-03-02|

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US20200240521A1|2020-07-30|

WO2017203071A1|2017-11-30|

CA3025082A1|2017-11-30|

EP3467219A1|2019-04-10|

EP3467219A4|2019-07-03|

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US3504597A|1969-05-13|1970-04-07|Robert L Pare|Roadbed joint seal|

US3720142A|1971-09-07|1973-03-13|R Pare|Elastomer seal for modular roadbeds|

JPS57112505U|1980-12-29|1982-07-12|FR3074507A1|2017-12-04|2019-06-07|Gv2 International - Veda France|EXPANSION COVER FOR BUILDING INDUSTRY|

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ES201630674A|ES2598172B1|2016-05-24|2016-05-24|SEALING SYSTEM FOR SEALING DILATATION JOINTS AND PLACEMENT METHOD OF THE SAME|ES201630674A| ES2598172B1|2016-05-24|2016-05-24|SEALING SYSTEM FOR SEALING DILATATION JOINTS AND PLACEMENT METHOD OF THE SAME|

US16/303,721| US10935138B2|2016-05-24|2017-05-22|Sealing system for sealing expansion joints and method for placing the same|

EP17802245.5A| EP3467219B1|2016-05-24|2017-05-22|Sealing system for sealing expansion joints and method for placing the same|

CA3025082A| CA3025082A1|2016-05-24|2017-05-22|Sealing system for sealing expansion joints and method for placing same|

PCT/ES2017/000056| WO2017203071A1|2016-05-24|2017-05-22|Sealing system for sealing expansion joints and method for placing the same|

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