Profile cap for a swimming pool covering and assembly

Abstract

The invention relates to a profile cap for a swimming pool cover and assembly, a cap for hermetically closing the ends of the hollow profiles, or longitudinal slats, which, when coupled together in an articulated manner, define the safety covering cover to be deployed on the surface of the water in a swimming pool. The cap has a structural configuration mainly comprising an internal closure piece, which is inserted into the end of the profile and acts as an element that seals the longitudinal cavities of the profile so that it floats, and an external closure piece, with a variable width, which in addition to embellishing the end of the profile, acts as a protective element for protecting the profile against the edges of the swimming pool and between profiles. The invention also relates to an assembly consisting of the profile and a cap at each end of said profile.

Description

OBJECT OF THE INVENTION

[0001] The invention, which is a profile cap for a swimming pool covering and assembly, relates to a cap for hermetically closing the ends of the hollow profiles, or longitudinal slats, which, when coupled together in an articulated manner, define the safety covering cover to be deployed on the surface of the water in a swimming pool. The cap has a structural configuration mainly comprising an internal closure piece, which is inserted into the end of the profile and acts as an element that seals the longitudinal cavities of the profile so that it floats, and an external closure piece, with a variable width, which in addition to embellishing the end of the profile, acts as a protective element for protecting the profile against the edges of the swimming pool and between profiles. Optionally, depending on the application of the cover, the cap may comprise a pendulum piece, particularly for infinity pools, which acts as a stop to prevent the cover from going beyond the edge of the swimming pool, and also serves to guide the cover or covering panel in its path when wound up and unwound. The invention also relates to an assembly consisting of the profile and a cap at each end of said profile.

[0002] The field of application of the present invention falls within the swimming pool sector, focusing particularly on the field of industry dedicated to the manufacture of equipment and accessories for swimming pools, particularly floating covers or coverings made up of rigid elements, focusing specifically on the end caps of the profiles or slats that make up said coverings.BACKGROUND OF THE INVENTION

[0003] Different profiles or slats are known in the state of the art for covering swimming pools, consisting of a hollow longitudinal body made of plastic material that can float on the water by covering the ends of the same with closure caps and which at one end has a longitudinal opening or slot and at the opposite end has a protruding longitudinal member in the form of a hook, such that the hook of one profile is coupled to or inserted in the slot of the previous profile. By successively connecting several identical profiles, a swimming pool cover, or panel, is formed, taking into account that the connection between profiles allows mobility therebetween in order to be able to wind them up on a shaft at one end of the swimming pool. The swimming pool cover, or panel, covers the water surface, helping to maintain water temperature and prevent the water from getting dirty. To enable these profiles to float, hermetic closure caps are coupled to both sides of the profiles to create air chambers inside the profiles.

[0004] Different documents describing profiles for swimming pool covers are known in the prior art, such as, for example, patent application number EP2295676A2, patent number ES2878018T3 and utility model number ES1275771U, but none of them disclose or show a cap such as the one that is the subject of the present invention.

[0005] Although the caps in the prior art are designed to seal the slats or profiles, they have some shortcomings due to their configuration. For example, the fact that they are made up of a single piece, while achieving the water-tightness objective, does not allow the cap to be easily replaced when it is damaged by rubbing against the ends of the swimming pool, as removing the cap from the profile is complicated, especially if sealing materials, such as silicone, are used to guarantee water-tightness. The present invention is characterised in that is comprises a cap in two parts such that an external part that protects the internal part, which is coupled to the profile, can be replaced when damaged.

[0006] Another problem in the prior art is that when the covers are used on infinity pools, without an edge or with an edge at a different height, the profiles do abut and it is necessary to monitor the length of the deployed cover in order to cover the swimming pool. Thus, a variant of the cap that is the subject matter of the invention allows, by incorporating a pendulum piece or pendular piece on the external part of the cap, the use of covers equipped with the cap that is the subject matter of the invention in infinity pools without an edge or with edges at different heights. It also helps to prevent unwanted displacement of the cover caused by wind or the force of the water jets from the recirculation system of the swimming pool.

[0007] Another problem lies in the lack of adaptability of the covering panel or cover during installation, once said covering panel or cover has been manufactured, since during installation it is sometimes necessary to reduce or increase the total length of the profiles or slats of the cover if the dimensions are not correct, or also to adapt said cover or panel to the rounded shapes of the corners of some swimming pools where the real radius has not been accurately determined during the manufacturing process of the components of the cover or panel, it being very important to have accessories or interchangeable accessory parts that overcome these problems.DESCRIPTION OF THE INVENTION

[0008] The present invention, which is a profile cap for a swimming pool covering and assembly, relates to a cap intended for use in profiles which, when coupled together, form a cover of a swimming pool, as well as to an assembly consisting of a profile and the caps arranged at the ends of the profile.

[0009] A first subject matter of the invention is therefore a profile cap for a swimming pool covering according to claim 1. Said cap is incorporated into the two ends of each of the longitudinal profiles that make up a safety covering cover, or panel, for swimming pools, which profiles are coupled to each other in an articulated manner, from a first profile, followed by successive profiles, to a last profile connected to a winding shaft, said profiles being wound on a motorised shaft located at one end of the swimming pool, said cover or panel being deployed over the water surface to cover it. The cap essentially comprises an internal closure piece, which is inserted in each end of the profile to seal the longitudinal cavities of the profile allowing it to float, and, in addition, an external closure piece coupled to the internal closure piece which, apart from serving as an embellishment element, acts as a protector for protecting against the edges of the swimming pool and to prevent lateral displacements between the slats.

[0010] In particular, the cap which is the subject matter of the invention features: an internal closure piece, with an internal part on one side, to be inserted into a cavity at the end of the profile, and an external part on the opposite side, said external part being provided with at least one hole for the insertion of sealing material into the said internal closure piece, an external closure piece, and coupling means for coupling between the external part of the internal closure piece and the external closure piece.

[0011] The internal closure piece of the cap is a part, preferably made of polycarbonate, with a configuration in accordance with the configuration of the profile for which it is intended, such that it has as many independent bodies separated from each other as there are cavities in the profile. Said independent bodies are tightly inserted into each of the various interior cavities of the profile, serving to insulate and seal said cavities from the outside, such that no water can enter them and the profile can float. The internal closure piece may incorporate an independent body, but preferably four.

[0012] In order to achieve full water-tightness of the profile, once the internal closure piece of the cap is inserted into the end of the profile, the internal part of the closure piece has at least one perforation connected to the at least one hole in the internal closure piece, allowing a sealing material, preferably silicone, introduced through the hole to exit through other holes provided in the independent body or bodies to which it is connected. The sealing material exits through the holes in the independent body or bodies once they have been inserted into the cavities of the profile to seal any gaps that may exist between the cap and the wall of the profile. By performing this process using this internal closure piece of the cap, it is ensured that even if the external closure piece, which is coupled to the internal closure piece, is accidentally detached, the water-tightness is maintained. This internal closure piece may be internally fitted with a series of reinforcing partitions intended to improve its strength.

[0013] Moreover, the outer closure piece of the cap, preferably made of polycarbonate, is coupled with the internal closure piece by means of the coupling means. These coupling means for coupling between the internal closure piece and the external closure piece are preferably at least one tab which emerges from the external part thereof to couple in at least one recess in the external closure piece. Other coupling means can also be used. The external closure piece preferably comprises an inner face with a hollow configuration where the at least one recess is provided to receive the coupling means of the internal closure piece and also has an outer face that can incorporate different designs and aesthetic configurations.

[0014] The cap of the present invention has the following uses: As an embellishment element, to improve the finish of the ends of the profiles and the assembly of the panel of the pool liner. As a protective element, both for the ends of the profiles when they collide with the edges of the swimming pool and for handling by the user. As a blocking element to prevent lateral displacement between the slats that make up the panel.

[0015] The external closure piece has a housing, preferably in the form of a slot extending along the length of the external closure piece, and arranged between two walls of said external closure piece, incorporating a first coupling element. In certain constructions, said external closure piece may incorporate a second coupling element of the housing, located on the side opposite to where the first coupling element is located.

[0016] The length of the cap is similar to the length of the end of the profile, and therefore so are both the internal closure piece and the external closure piece.

[0017] The cap may include, coupled to the external piece, in particular, namely to the first coupling element located in the housing of said external piece, an accessory part with a first accessory piece coupling element. Additionally, the cap may include accessory pieces with a second coupling element, spaced away from the first coupling element, for coupling with the second coupling element of the housing of the external closure piece.

[0018] For the coupling of the accessory piece and the external part of the cap, both the first coupling elements and the second coupling means, when both are incorporated into the accessory piece and the external closure piece, are complementary to enable the press-fit coupling between the two.

[0019] In one possible construction, the first coupling element of the housing is a transverse shaft between the two walls of the housing and the first coupling element of an accessory piece is a hook or a curved construction, inside which the said transverse shaft is coupled. In other alternatives, the transverse shaft could be located in the accessory piece and the hook in the housing of the external closure piece. Likewise, in another alternative, the housing could include two opposing holes as the first coupling element of the housing and the accessory piece could include two pins that are inserted into the holes. A construction is also possible in which the pins and holes change position. Other constructions of press-fit coupling elements are possible as long as the first coupling elements allow the accessory piece to rotate relative to the housing of the external closure piece.

[0020] In another possible construction of an accessory piece, including, in addition to the first coupling element, a second coupling element, the second coupling element of the housing being a hole and the second coupling element of the accessory piece being a pin. In an alternative construction, the pin can be located in the housing and the hole in the accessory piece. Other constructions of second coupling elements are possible in order to prevent the accessory piece from rotating relative to the housing while allowing it to be press-fit coupled at the same time.

[0021] A possible accessory piece that can be coupled to the cap is a pendulum piece with two ends, one of said ends being coupled to the external closure piece. Said pendulum piece is coupled in a manner that is easily removable from the external closure piece and is especially useful in overflow or infinity pools, serving as a stop against the side wall of the swimming pool, while also serving as a guide for the movement of the cover or panel of the covering along its path as it is wound and unwound.

[0022] As mentioned above, for the coupling between the pendulum piece and the external closure piece, this external closure piece comprises a transverse shaft located in a housing of said external closure piece, preferably on one side of the housing. The transverse shaft allows the coupling of a hook, preferably press-fit, at one end of the pendulum piece with the said transverse shaft, enabling a pendulum movement of the pendulum piece relative to the external closure piece, which also allows the pendulum piece to be inserted into the housing of said external closure piece.

[0023] The pendulum piece, is preferably an elongate piece of metal, preferably steel, which is completely covered with polymer material, preferably polycarbonate, with a hook-shaped coupling element at one end that is coupled to the shaft provided for this purpose in the external closure piece, such that it hangs from the same swinging like a pendulum. The polycarbonate coating aims to increase resistance to the salt electrolysis and oxidation that the metal part, steel, may suffer when submerged in the water of the swimming pool. In addition, it is preferably a self-lubricating material, which in turn facilitates the sliding thereof in water, and comprises an inner metal core, preferably steel, and an outer coating (made of polymer material).

[0024] Another possible accessory piece is a keel piece with a body formed by a first section and a second section joined at one of the ends thereof, leaving the opposite ends free, both sections forming an angle greater than 90° and less than 180°, the first coupling element being at the free end of the first section and the second coupling element at the end of the first section opposite the free end, in line with the connection end for connecting to the second section.

[0025] Another accessory piece that is an alternative to the above is a flange piece comprising a first elongate section with two free ends, connected on one side to a body formed by a flat upper surface with two sides at 90° to each other and a partially curved side, the first coupling element being at one free end of the first elongate section and the second coupling element at the opposite free end. The partially curved side of the flange piece has a curve with a radius of between 5 cm and 50 cm, and there may be different flange pieces with curves of different radii, preferably a flange piece with a curve with a radius of 5 cm and a flange piece with a curve with a radius of 18 cm.

[0026] Both the keel piece and the flange piece are preferably made of polycarbonate.

[0027] The external closure piece is preferably of variable width, depending on whether or not the cap includes an accessory piece. Thus, preferably, when the cap comprises only the internal and external piece, without an accessory piece, the external closure piece has a preferred width of approximately 15 mm, while if the accessory piece, either pendulum, keel or flange, is included, to achieve different objectives, it preferably has a width of 25 mm or 35 mm. These objectives can be, for example, to allow a correct guiding of the cover in the case of infinity or overflowing pools, which do not have an edge or coping, in this case the external closure piece; and / or to allow the end of the covering panel or cover to adapt to corners of the swimming pool which do not form a right angle, usually with a curve.

[0028] It is important to note that the internal closure piece and the external closure piece, in addition to being designed to couple together, have a structural configuration designed by way of a keel to offer less opposition to the action of the wind or water jets of the swimming pool, such that the unwanted lateral movement of the cover is hindered, favouring the longitudinal movement thereof.

[0029] Therefore, the caps of the invention are configured as a system that can be made up of two or three of the pieces described above, depending on the type of swimming pool.

[0030] Thus, preferably, only the internal closure piece will be used with the external closure piece, without an accessory piece, when the cover must operate in swimming pools with an edge, such that in addition to establishing the lateral movement between the profiles and protecting the end thereof, the movement of the cover can be guided by collision with the walls of the swimming pool.

[0031] However, in the case of infinity or overflow pools, in which the path of the cover is not limited by any of the walls, which are side walls, since they are swimming pools that do not have an edge or coping in which the water overflows over the edges thereof, the cap preferably comprises the internal closure piece, the external closure piece and also the pendulum piece coupled to and hanging on the external closure piece. In this situation it is the pendulum piece that is responsible for guiding the cover. For this purpose, during the process of deploying the panel, the weight of the pendulum piece itself rotates the same until it hangs in a vertical position when the cover rests on the surface of the water. In this way, when the panel is retracted around the motorised shaft, the pendulum piece is retracted and housed in the housing provided for this purpose in the external closure piece, in particular in the lower part thereof, as the cover is raised when it is wound up. The rotation of the pendulum part is completely free, such that it is able to overcome obstacles and avoid snags during the process of winding or unwinding the cover.

[0032] It must be noted that it is not necessary to install the pendulum piece on all the caps of all the profiles of the covering cover swimming pool, but it is advisable to install it at intervals at certain distances on both sides of the covering cover.

[0033] The keel piece, which is complementary to the pendulum piece, has the task of preventing the panel or covering cover of the swimming pool from drifting, and is placed exclusively on the caps of the first profile or slat, opposite to the profile connected to the winding shaft. This anti-drift keel piece allows an initial guiding that greatly helps to correctly deploy the panel or cover along the aforementioned overflow or infinity pools.

[0034] Regardless of the radius of the curve of the partially curved side of its surface, the flange piece allows any gaps that may remain in the curved edges and corners of the swimming pool to be closed with the panel or cover. Preferably there are flange pieces with a curve with a radius of 5 cm and flange pieces with a curve with a radius of radius 18 cm, although other flange pieces with other radii are possible. The use of each flange piece, independently in a profile, or combined in continuous profiles, allows for a more precise fit than by using the standard external cap without any accessory piece as this only allows the effective closing of swimming pools with right-angled corners.

[0035] The assembly of the keel pieces and flange pieces in the housing of the external closure piece of the cap is preferably carried out by first coupling the second coupling element of the accessory piece in the second coupling element of the housing, preferably by inserting the pin of the accessory piece into the hole of the housing, and then coupling the first coupling element of the accessory piece in the first element of the housing, that is, the hook on the transverse shaft.

[0036] This ease of installation allows a quick installation adapted to the surfaces of the swimming pools to be covered, as well as facilitating the replacement of said accessory pieces in the event of breakage or damage.

[0037] There are several advantages provided by the cap of the invention, in particular the following: In the event of detachment or breakage of the external closure piece, the internal closure piece will continue to provide waterproofing to the profiles to ensure that they float and will continue to prevent the lateral displacement of the profiles, which is not currently the case with existing systems. The internal closure piece is internally reinforced with several ribs that improve its physical and mechanical characteristics. The cap as a whole has a hydrodynamic design that facilitates the sliding of the cover over the water surface. In addition, the keel-shaped design of the keel pieces it consists of provides less opposition to wind or water jets, making lateral movement of the cover more difficult. The cap offers the possibility of combining or interchanging different types of accessories depending on the need, as the external closure piece is available in different widths, while maintaining the same characteristics, in order to better adjust the assembly to the actual size of the swimming pool during installation. The cap offers the possibility of installing a pendulum piece on the external closure piece to help guide the panel along its path in infinity pools. This pendulum is made up of a metal core and a self-lubricating polymer coating to prevent rust and to facilitate sliding. Adaptation of the panel or covering cover to the shape of curved corners in swimming pools to better cover the swimming pool. The design of the external closure piece prevents possible harm to the user during use or handling of the system. The external closure piece is easily removable for replacement or maintenance.

[0038] According to the foregoing, a second subject matter of the invention is a profile assembly for a swimming pool covering, comprising a cap having any of the features of the cap described above and a cap for a swimming pool covering having a longitudinal hollow body with two ends defining at least one cavity, the shape of the at least one body of the internal part of the internal closure piece of the cap being complementary to the shape of the at least one cavity of the profile for the press-fit insertion of the cap into the cavity. Likewise, the profile comprises several cavities and the internal part comprises several bodies that are complementary to each other.DESCRIPTION OF THE DRAWINGS

[0039] To complete the description of the present specification and in order to facilitate the understanding of the features of the invention, the present specification includes, as an integral portion thereof, a set of figures of an illustrative and non-limiting nature. Figure 1 shows a perspective view of an exemplary embodiment of the cap for a safety profile for swimming pool covering as per the invention, specifically an example of this without an accessory piece, shown separately, without the profile for which it is intended, and in exploded view, that is, with the internal and external closure piece not coupled together, with the external part of both pieces being visible. Figure 2 shows a perspective view of the internal and external closure piece of the cap, according to the example shown in Figure 1, in this case also shown separately and without being coupled together, in this case showing the internal part thereof. Figure 3 shows a perspective view of one end of the profile and the internal closure piece of the cap, shown without being coupled together. Figure 4 shows a perspective view of the end of the profile with the two pieces of the cap, the internal closure piece and the external closure piece, once they have been coupled thereon. Figure 5 shows a perspective view of another example of the cap of the invention, in this case with a pendulum, being represented in exploded view, showing the external part of the internal and external closure pieces, as well as the configuration of the pendulum separately. Figure 6 shows a partial cross-sectional view of an example of a first accessory piece, a pendulum piece optionally comprising the cap of the invention, showing the internal metal configuration thereof, preferably steel, and the polymer coating. Figures 7-A, 7-B and 7-C show, in their respective perspective views, the way in which the pendulum piece is coupled by press-fitting onto the transverse shaft provided in the housing of the external closure piece by clipping between the hook of the pendulum piece and the shaft of the closure piece, without using any additional fastening element. Figure 8 shows a side elevation view of the assembly of the covering panel, or cover, in the winding phase around the shaft, showing the pendular movement and the vertical arrangement of the pendulum pieces of the caps of the profile until they are housed in the external closure piece thereof. Figures 9-A, 9-B and 9-C show three cross-sectional views of the detail view of three different types of overflow pool in which the cap of the invention includes the pendulum, showing the way in which it acts as a stop against the side wall of the swimming pool in each of them. Figures 10-A and 10-B show two perspective views, front and back, of an alternative accessory piece, namely a keel piece. Figures 11-A, 11-B and 11-C show three views, top perspective plan view and bottom perspective plan view, of an alternative accessory piece, namely a flange piece. Figures 12-A, 12-B and 12-C show three views, top perspective plan view and bottom perspective plan view, of another alternative accessory piece, namely a second shape for a flange piece. Figures 13-A, 13-B and 13-C show, in their respective perspective views, the manner in which the keel piece is coupled by press-fit into the housing of the external closure piece, in particular by inserting a pin of the keel piece into a hole in a wall of the housing of the external piece and then by clipping between the hook of the keel piece and the shaft of the closure piece, and without using any additional fastening element. Figure 14 shows a perspective view of a portion of a covering panel, or cover, for a swimming pool, in which several profiles can be seen connected to each other, with the first profile having a flange piece coupled to the cap and the profiles after the first profile having caps to which different accessory pieces can be coupled, preferably pendulum pieces. Figures 15-A to 15-D show different adaptations of the corners of a covering panel, or cover, of a swimming pool to the curved corners of different swimming pools. PREFERRED EMBODIMENT OF THE INVENTION

[0040] Two examples of the subject matter of the invention are described below. Thus, as can be seen in figures 1 to 4, the cap (1) of the invention, which can be applied for the incorporation thereof in the respective ends of each of the profiles (2) of a safety covering panel or cover (3) for swimming pools, comprises, at least, an internal closure piece (4), which is inserted tightly fitted into the cavities (5) of the end of the profile (2) and has holes (6) for the insertion of sealing material, for example silicone, and an external closure piece (7) which is coupled by means of press-fit through coupling means on the internal piece (4), this external closure piece (7) preferably being removable and interchangeable piece between at least two types of external closure piece (7) with at least two different widths (a, a').

[0041] In one embodiment option, the cap (1) further comprises an accessory piece, or pendulum accessory piece (8) that couples, also by means of press-fit and in an easily removable manner, in an external closure piece (7) of greater width (a) which is provided with a housing (10) or slot, arranged between two walls, and incorporating as a first coupling element (9) of the housing (10) a transverse shaft for fastening and housing said pendulum accessory piece (8) through a first coupling element (14) of the pendulum accessory piece (8), preferably in the form of a hook.

[0042] Preferably, the internal closure piece (4) of the cap is a polycarbonate piece comprising an internal piece (4a) where it has a series of bodies (4.1) separated from each other, each of which has a configuration in accordance with the configuration of each of the different cavities (5) of the profile (2), such that they fit tightly into said cavities (5), there being, on an external part (4b) of the piece, on the opposite side of the internal part (4a), a hole (6) for sealant entry located in line with each of the aforementioned bodies (4.1) which, in turn, are provided with perforations (4.2) in one or more of the walls thereof, for example the upper wall, so that the sealing material passes through the same and is distributed between the same and the cavities (5) of the profile, sealing the connection of the cap (1) to the profile (2).

[0043] Likewise, the interior closure piece (4) preferably also comprises one or more tabs (11) that emerge from the external part (4b) thereof for coupling same to the external closure piece (7).

[0044] Alternatively, the external part (4b) of the internal closure piece (4) internally has one or more reinforcing partitions (12).

[0045] The external closure piece (7) is preferably a polycarbonate piece with a hollow configuration on its inner face (7a) where, in addition to other internal reinforcement partitions (12), there are recesses (13) arranged such that the aforementioned tabs (11) of the external part (4b) of the internal closure piece (4) are coupled by press-fitting therein, while on the outer face (7b) it has a smooth finish.

[0046] Furthermore, when the cap (1) only includes the internal closure piece (4) and the external closure piece (7), as shown in the example in Figures 1 to 4, this option is particularly suitable in coverings (3) for swimming pools with an edge or coping, where the external closure piece (7) acts as a stop. Preferably, said external closure piece (7) has a smaller width (a') than the width of the external closure piece (7) with the housing (10) which has a different width (a). The width of the external closure piece (7) without a housing is preferably 15 mm wide.

[0047] Furthermore, when the cap (1) also includes the housing (10) to receive an accessory piece, for example, a pendulum accessory piece (8), which is a particularly suitable option in coverings (3) for infinity pools, without an edge or coping, as shown in Figures 5 to 9, the external closure piece (7) has a larger width (a), preferably 25 mm or 35 mm.

[0048] In any case, the internal closure piece (4) and the external closure piece (7) have a perimeter configuration similar to the configuration of the profile (2) in that, in addition to coupling together, it defines a keel shape that offers low resistance to the action of wind or water jets of the pool.

[0049] Figure 6 shows how, the pendulum accessory part (8) preferably consists of an elongate piece with an inner metal core (8.1), preferably steel, and an outer coating (8.2) made of polymer material, preferably polycarbonate and self-lubricating. The pendulum accessory piece (8) preferably comprises, at one end thereof, a first coupling element, in the form of a hook (14), which is fastened, by press-fitting, to the first coupling element (9) of the housing (10), in the form of the transverse shaft of the external closure piece (7) of greater width (a), as shown in figures 7-A, to 7-C.

[0050] Figure 6 shows how, during the winding and unwinding process of the covering (3), the weight of the pendulum accessory piece (8) of each cap (1) causes it to rotate until it hangs vertically when it rests on the surface of the water, and when it is wound up or remains retracted, it does so inside the housing (10) of the external closure piece (7).

[0051] Lastly, looking at Figures 9-A, 9-B and 9-C, we can see three examples of situations that can basically occur within the types of infinity pools: A first situation (Figure 9-A), where the walls (15) of the swimming pool are vertical up to the overflow area (16) of the water, in which case the pendulum accessory piece (8) of the cap (1) abuts against said walls of the swimming pool in the process of deploying and retracting the covering (3). A second situation (Figure 9-B), where the upper part of the wall (15) of the swimming pool has an overflow area (16) with a slight slope and the pendulum accessory piece (8) reaches the inner face of the said wall (15) where it can abut to guide the covering (3) in the deployment and retraction process. A third situation (figure 9-C), where, as in the previous case, the upper part of the wall (15) of the swimming pool has a sloped overflow area (16), but the sloped area increasing, and the pendulum accessory piece (8) acts in the same way, but the covering (3) considerably reduces its width.

[0052] The cap as per the invention with a housing (10) in the external closure piece (7), in addition to having a first coupling element (9), may have a second coupling element (18) which is arranged at a distance from the first coupling element (9), preferably at the opposite end of the housing (10) where said first coupling element (9) of the housing (10) is located. This second coupling element (18) of the housing (10) serves to receive other accessory pieces (20, 30, 40), other than the pendulum accessory piece (8), which must not rotate with respect to the first coupling element (9) of the housing (10) of the external closure piece (7). The second coupling element (18) of the housing (10) serves as a second fastening point for the accessory piece (20, 30, 40), and as a complement to the first coupling element (9) of the housing (10).

[0053] The accessory pieces (20, 30, 40) with two coupling elements (23, 24; 33, 34; 43, 44), a first coupling element (24, 34, 44) and a second coupling element (23, 33, 43) can have different shapes and functions when coupled to the external closure piece (7) of the cap (1). The first coupling element (24, 34, 44) of the accessory pieces (20, 30, 40) is coupled to the first coupling element (9) of the housing (10) and the second coupling element (23, 33, 43) of the accessory pieces (20, 30, 40) is coupled to the second coupling element (18) of the housing, thus securing the position of the accessory piece (20, 30, 40) in the cap by preventing movement of the accessory piece (20, 30, 40).

[0054] An example of an accessory piece, shown in Figure 10, with the two coupling elements (23, 24) is a keel accessory piece (20). This keel accessory piece (20) must be installed exclusively on the caps of the first profile of the safety covering panel, or cover, of the swimming pool, and other accessory pieces, such as, for example, the pendulum accessory piece (8) described above, can be arranged on the caps of the successive profiles. The function of the keel accessory piece (20) is to allow the initial guiding of the panel or cover which will greatly contribute to its correct deployment along overflow or infinity pools.

[0055] The keel accessory piece (20) comprises a body formed by a first section (22) and a second section (21) joined at one of the ends thereof, leaving the opposite ends free, both sections forming an angle greater than 90° and less than 180°, preferably between 100° and 135°, the first coupling element (24) being at the free end of the first section (22) and the second coupling element (23) at the end of the first section (22) opposite the free end, in line with the connection end for connecting to the second section (21). The keel accessory piece (20) is preferably made of polycarbonate.

[0056] For the installation of the keel accessory piece (20) on the cap (1) for coupling same to the profile, as shown in Figures 13-A to 13-C, the second coupling element (23), preferably a pin, of the keel accessory piece (20) is coupled to the second coupling element (18), preferably a hole, of the housing (10) of the external closure piece (7) of the cap (1). Subsequently, by rotating the keel accessory piece (20) with respect to the housing (10), the first coupling element (24), preferably a hook, of the keel accessory piece (20) is coupled, preferably by press-fitting, to the first coupling element (9), preferably a transverse shaft in the housing (10), and thus being connected by clipping. The cap with the keel accessory piece (20) is thus integrated in the same. This installation system, or coupling, is simple and quick, thus facilitating the replacement of pieces in case of breakage, damage or change of use.

[0057] Other examples of accessory pieces are shown in Figures 11-A to 11-C and 12-A to 12-C, which show a first flange accessory piece (30) (Figures 11-A, 11-B, 11-C) and a second flange accessory piece (40) (Figures 12-A, 12-B, 12-C). Both flange accessory pieces (30, 40) have two coupling elements (33, 34, 43, 44) for coupling to the external closure piece (7) of the cap (1). These flange accessory pieces (30, 40) serve to close any gaps that may exist between the edges and corners of swimming pools with curves and the covering panel, or cover, of the swimming pool.

[0058] The flange accessory piece (30, 40) comprises a first elongate section (32, 42) with two free ends, connected at one side to a body formed by a flat upper surface (31, 41) with two sides (35, 36; 45, 46) at 90° to each other and a partially curved side (37, 47), the first coupling element (34, 44) being at one free end of the first elongate section (32, 42) and the second coupling element (33, 43) at the opposite free end.

[0059] The partially curved side of the flange accessory piece (30, 40) has a curve with a radius of between 5 cm and 50 cm. Preferably, a first flange accessory piece (30) has a curve with a radius of 5 cm. In an alternative embodiment, another second flange accessory piece (40) has a curve with a radius of 18 cm. These flange accessory pieces (30, 40) are preferably made of polycarbonate.

[0060] The installation of the flange accessory piece (30, 40) on a cap (1) is similar to that already described for the keel piece (20). The second coupling element (33, 43), preferably a pin, of the flange accessory piece (30, 40) is coupled in the second coupling element (18), preferably a hole, of the housing (10) of the external closure piece (7) of the cap (1). Subsequently, by rotating the flange accessory piece (30, 40) with respect to the housing (10), the first coupling element (34, 44), preferably a hook, of the flange accessory piece (30, 40) is coupled, preferably by press-fitting, to the first coupling element (9), preferably a transverse shaft in the housing (10), and thus being connected by clipping. The cap with the flange accessory piece (30, 40) is thus integrated in the same.

[0061] The use of a flange accessory piece (30, 40) or the combination of two, allows a more precise fit than the use of straight caps as they do not incorporate accessory pieces that allow them to adapt to the different shapes of the swimming pool.

[0062] Figure 14 shows a portion of a covering panel, or cover, for a swimming pool formed by different profiles (2) connected together in an articulated manner and which deploys over the swimming pool in the direction of the arrow. This figure shows the first profile with a cap (1) with an external closure piece (7) incorporating a keel accessory piece (20), as well as caps (1) arranged in subsequent profiles ready to receive other accessory pieces, such as, for example, pendulum accessory pieces (8) on the coupling element (9) or flange accessory pieces (30, 40), although the use of the latter (30, 40) is usually limited to the first and / or second profile of the panel or cover, as their function is to adapt the shape of the front corners of the panel or cover to the shape of the corners of the swimming pool. Figures 15-A to 15-D show different adaptations of the covering panel with flange pieces to different corner curvatures of swimming pools.

[0063] For example, Figure 15-A shows a curved corner of a swimming pool (15) with a radius of 50 cm, and the first profile (2) of a covering panel of the swimming pool incorporating a cap with a first flange accessory piece (30) with a radius of 5 cm to adapt to said corner of the swimming pool and to close as much as possible the possible gaps between the panel and the walls (15) of the swimming pool, the caps of the profiles (2) following said first profile being preferably equipped with pendulum pieces (not shown).

[0064] Figure 15- shows a curved corner of a swimming pool (15) with a radius of 100 cm, having the first profile (2) of a covering panel of the swimming pool incorporating a cap with a second flange accessory piece (40) with a radius of 18 cm to adapt to said corner of the swimming pool and to close as much as possible the possible gaps between the panel and the walls (15) of the swimming pool, the caps of the profiles (2) following said first profile being preferably equipped with pendulum pieces (not shown).

[0065] Figure 15-C shows a curved corner of a swimming pool (15) with a radius of 150 cm, having the first profile (2) of a covering panel of the swimming pool incorporating a cap with a second flange accessory piece (40) with a radius of 18 cm followed by a profile (2) with a first flange accessory piece (30) with a radius of 5 cm to adapt to said corner of the swimming pool and to close as much as possible the possible gaps between the panel and the walls (15) of the swimming pool, the caps of the profiles (2) following said first profile being preferably equipped with pendulum pieces (not shown).

[0066] Figure 15-D shows a covering panel, or cover, as in the previous figure, but in a swimming pool (15) with a curved corner with a radius of 200 cm.

Examples

Embodiment Construction

[0040]Two examples of the subject matter of the invention are described below. Thus, as can be seen in figures 1 to 4, the cap (1) of the invention, which can be applied for the incorporation thereof in the respective ends of each of the profiles (2) of a safety covering panel or cover (3) for swimming pools, comprises, at least, an internal closure piece (4), which is inserted tightly fitted into the cavities (5) of the end of the profile (2) and has holes (6) for the insertion of sealing material, for example silicone, and an external closure piece (7) which is coupled by means of press-fit through coupling means on the internal piece (4), this external closure piece (7) preferably being removable and interchangeable piece between at least two types of external closure piece (7) with at least two different widths (a, a').

[0041]In one embodiment option, the cap (1) further comprises an accessory piece, or pendulum accessory piece (8) that couples, also by means of press-fit and in ...

OBJECT OF THE INVENTION

[0001] The invention, which is a profile cap for a swimming pool covering and assembly, relates to a cap for hermetically closing the ends of the hollow profiles, or longitudinal slats, which, when coupled together in an articulated manner, define the safety covering cover to be deployed on the surface of the water in a swimming pool. The cap has a structural configuration mainly comprising an internal closure piece, which is inserted into the end of the profile and acts as an element that seals the longitudinal cavities of the profile so that it floats, and an external closure piece, with a variable width, which in addition to embellishing the end of the profile, acts as a protective element for protecting the profile against the edges of the swimming pool and between profiles. Optionally, depending on the application of the cover, the cap may comprise a pendulum piece, particularly for infinity pools, which acts as a stop to prevent the cover from going beyond the edge of the swimming pool, and also serves to guide the cover or covering panel in its path when wound up and unwound. The invention also relates to an assembly consisting of the profile and a cap at each end of said profile.

[0002] The field of application of the present invention falls within the swimming pool sector, focusing particularly on the field of industry dedicated to the manufacture of equipment and accessories for swimming pools, particularly floating covers or coverings made up of rigid elements, focusing specifically on the end caps of the profiles or slats that make up said coverings.BACKGROUND OF THE INVENTION

[0003] Different profiles or slats are known in the state of the art for covering swimming pools, consisting of a hollow longitudinal body made of plastic material that can float on the water by covering the ends of the same with closure caps and which at one end has a longitudinal opening or slot and at the opposite end has a protruding longitudinal member in the form of a hook, such that the hook of one profile is coupled to or inserted in the slot of the previous profile. By successively connecting several identical profiles, a swimming pool cover, or panel, is formed, taking into account that the connection between profiles allows mobility therebetween in order to be able to wind them up on a shaft at one end of the swimming pool. The swimming pool cover, or panel, covers the water surface, helping to maintain water temperature and prevent the water from getting dirty. To enable these profiles to float, hermetic closure caps are coupled to both sides of the profiles to create air chambers inside the profiles.

[0004] Different documents describing profiles for swimming pool covers are known in the prior art, such as, for example, patent application number EP2295676A2, patent number ES2878018T3 and utility model number ES1275771U, but none of them disclose or show a cap such as the one that is the subject of the present invention.

[0005] Although the caps in the prior art are designed to seal the slats or profiles, they have some shortcomings due to their configuration. For example, the fact that they are made up of a single piece, while achieving the water-tightness objective, does not allow the cap to be easily replaced when it is damaged by rubbing against the ends of the swimming pool, as removing the cap from the profile is complicated, especially if sealing materials, such as silicone, are used to guarantee water-tightness. The present invention is characterised in that is comprises a cap in two parts such that an external part that protects the internal part, which is coupled to the profile, can be replaced when damaged.

[0006] Another problem in the prior art is that when the covers are used on infinity pools, without an edge or with an edge at a different height, the profiles do abut and it is necessary to monitor the length of the deployed cover in order to cover the swimming pool. Thus, a variant of the cap that is the subject matter of the invention allows, by incorporating a pendulum piece or pendular piece on the external part of the cap, the use of covers equipped with the cap that is the subject matter of the invention in infinity pools without an edge or with edges at different heights. It also helps to prevent unwanted displacement of the cover caused by wind or the force of the water jets from the recirculation system of the swimming pool.

[0007] Another problem lies in the lack of adaptability of the covering panel or cover during installation, once said covering panel or cover has been manufactured, since during installation it is sometimes necessary to reduce or increase the total length of the profiles or slats of the cover if the dimensions are not correct, or also to adapt said cover or panel to the rounded shapes of the corners of some swimming pools where the real radius has not been accurately determined during the manufacturing process of the components of the cover or panel, it being very important to have accessories or interchangeable accessory parts that overcome these problems.DESCRIPTION OF THE INVENTION

[0008] The present invention, which is a profile cap for a swimming pool covering and assembly, relates to a cap intended for use in profiles which, when coupled together, form a cover of a swimming pool, as well as to an assembly consisting of a profile and the caps arranged at the ends of the profile.

[0009] A first subject matter of the invention is therefore a profile cap for a swimming pool covering according to claim 1. Said cap is incorporated into the two ends of each of the longitudinal profiles that make up a safety covering cover, or panel, for swimming pools, which profiles are coupled to each other in an articulated manner, from a first profile, followed by successive profiles, to a last profile connected to a winding shaft, said profiles being wound on a motorised shaft located at one end of the swimming pool, said cover or panel being deployed over the water surface to cover it. The cap essentially comprises an internal closure piece, which is inserted in each end of the profile to seal the longitudinal cavities of the profile allowing it to float, and, in addition, an external closure piece coupled to the internal closure piece which, apart from serving as an embellishment element, acts as a protector for protecting against the edges of the swimming pool and to prevent lateral displacements between the slats.

[0010] In particular, the cap which is the subject matter of the invention features: an internal closure piece, with an internal part on one side, to be inserted into a cavity at the end of the profile, and an external part on the opposite side, said external part being provided with at least one hole for the insertion of sealing material into the said internal closure piece, an external closure piece, and coupling means for coupling between the external part of the internal closure piece and the external closure piece.

[0011] The internal closure piece of the cap is a part, preferably made of polycarbonate, with a configuration in accordance with the configuration of the profile for which it is intended, such that it has as many independent bodies separated from each other as there are cavities in the profile. Said independent bodies are tightly inserted into each of the various interior cavities of the profile, serving to insulate and seal said cavities from the outside, such that no water can enter them and the profile can float. The internal closure piece may incorporate an independent body, but preferably four.

[0012] In order to achieve full water-tightness of the profile, once the internal closure piece of the cap is inserted into the end of the profile, the internal part of the closure piece has at least one perforation connected to the at least one hole in the internal closure piece, allowing a sealing material, preferably silicone, introduced through the hole to exit through other holes provided in the independent body or bodies to which it is connected. The sealing material exits through the holes in the independent body or bodies once they have been inserted into the cavities of the profile to seal any gaps that may exist between the cap and the wall of the profile. By performing this process using this internal closure piece of the cap, it is ensured that even if the external closure piece, which is coupled to the internal closure piece, is accidentally detached, the water-tightness is maintained. This internal closure piece may be internally fitted with a series of reinforcing partitions intended to improve its strength.

[0013] Moreover, the outer closure piece of the cap, preferably made of polycarbonate, is coupled with the internal closure piece by means of the coupling means. These coupling means for coupling between the internal closure piece and the external closure piece are preferably at least one tab which emerges from the external part thereof to couple in at least one recess in the external closure piece. Other coupling means can also be used. The external closure piece preferably comprises an inner face with a hollow configuration where the at least one recess is provided to receive the coupling means of the internal closure piece and also has an outer face that can incorporate different designs and aesthetic configurations.

[0014] The cap of the present invention has the following uses: As an embellishment element, to improve the finish of the ends of the profiles and the assembly of the panel of the pool liner. As a protective element, both for the ends of the profiles when they collide with the edges of the swimming pool and for handling by the user. As a blocking element to prevent lateral displacement between the slats that make up the panel.

[0015] The external closure piece has a housing, preferably in the form of a slot extending along the length of the external closure piece, and arranged between two walls of said external closure piece, incorporating a first coupling element. In certain constructions, said external closure piece may incorporate a second coupling element of the housing, located on the side opposite to where the first coupling element is located.

[0016] The length of the cap is similar to the length of the end of the profile, and therefore so are both the internal closure piece and the external closure piece.

[0017] The cap may include, coupled to the external piece, in particular, namely to the first coupling element located in the housing of said external piece, an accessory part with a first accessory piece coupling element. Additionally, the cap may include accessory pieces with a second coupling element, spaced away from the first coupling element, for coupling with the second coupling element of the housing of the external closure piece.

[0018] For the coupling of the accessory piece and the external part of the cap, both the first coupling elements and the second coupling means, when both are incorporated into the accessory piece and the external closure piece, are complementary to enable the press-fit coupling between the two.

[0019] In one possible construction, the first coupling element of the housing is a transverse shaft between the two walls of the housing and the first coupling element of an accessory piece is a hook or a curved construction, inside which the said transverse shaft is coupled. In other alternatives, the transverse shaft could be located in the accessory piece and the hook in the housing of the external closure piece. Likewise, in another alternative, the housing could include two opposing holes as the first coupling element of the housing and the accessory piece could include two pins that are inserted into the holes. A construction is also possible in which the pins and holes change position. Other constructions of press-fit coupling elements are possible as long as the first coupling elements allow the accessory piece to rotate relative to the housing of the external closure piece.

[0020] In another possible construction of an accessory piece, including, in addition to the first coupling element, a second coupling element, the second coupling element of the housing being a hole and the second coupling element of the accessory piece being a pin. In an alternative construction, the pin can be located in the housing and the hole in the accessory piece. Other constructions of second coupling elements are possible in order to prevent the accessory piece from rotating relative to the housing while allowing it to be press-fit coupled at the same time.

[0021] A possible accessory piece that can be coupled to the cap is a pendulum piece with two ends, one of said ends being coupled to the external closure piece. Said pendulum piece is coupled in a manner that is easily removable from the external closure piece and is especially useful in overflow or infinity pools, serving as a stop against the side wall of the swimming pool, while also serving as a guide for the movement of the cover or panel of the covering along its path as it is wound and unwound.

[0022] As mentioned above, for the coupling between the pendulum piece and the external closure piece, this external closure piece comprises a transverse shaft located in a housing of said external closure piece, preferably on one side of the housing. The transverse shaft allows the coupling of a hook, preferably press-fit, at one end of the pendulum piece with the said transverse shaft, enabling a pendulum movement of the pendulum piece relative to the external closure piece, which also allows the pendulum piece to be inserted into the housing of said external closure piece.

[0023] The pendulum piece, is preferably an elongate piece of metal, preferably steel, which is completely covered with polymer material, preferably polycarbonate, with a hook-shaped coupling element at one end that is coupled to the shaft provided for this purpose in the external closure piece, such that it hangs from the same swinging like a pendulum. The polycarbonate coating aims to increase resistance to the salt electrolysis and oxidation that the metal part, steel, may suffer when submerged in the water of the swimming pool. In addition, it is preferably a self-lubricating material, which in turn facilitates the sliding thereof in water, and comprises an inner metal core, preferably steel, and an outer coating (made of polymer material).

[0024] Another possible accessory piece is a keel piece with a body formed by a first section and a second section joined at one of the ends thereof, leaving the opposite ends free, both sections forming an angle greater than 90° and less than 180°, the first coupling element being at the free end of the first section and the second coupling element at the end of the first section opposite the free end, in line with the connection end for connecting to the second section.

[0025] Another accessory piece that is an alternative to the above is a flange piece comprising a first elongate section with two free ends, connected on one side to a body formed by a flat upper surface with two sides at 90° to each other and a partially curved side, the first coupling element being at one free end of the first elongate section and the second coupling element at the opposite free end. The partially curved side of the flange piece has a curve with a radius of between 5 cm and 50 cm, and there may be different flange pieces with curves of different radii, preferably a flange piece with a curve with a radius of 5 cm and a flange piece with a curve with a radius of 18 cm.

[0026] Both the keel piece and the flange piece are preferably made of polycarbonate.

[0027] The external closure piece is preferably of variable width, depending on whether or not the cap includes an accessory piece. Thus, preferably, when the cap comprises only the internal and external piece, without an accessory piece, the external closure piece has a preferred width of approximately 15 mm, while if the accessory piece, either pendulum, keel or flange, is included, to achieve different objectives, it preferably has a width of 25 mm or 35 mm. These objectives can be, for example, to allow a correct guiding of the cover in the case of infinity or overflowing pools, which do not have an edge or coping, in this case the external closure piece; and / or to allow the end of the covering panel or cover to adapt to corners of the swimming pool which do not form a right angle, usually with a curve.

[0028] It is important to note that the internal closure piece and the external closure piece, in addition to being designed to couple together, have a structural configuration designed by way of a keel to offer less opposition to the action of the wind or water jets of the swimming pool, such that the unwanted lateral movement of the cover is hindered, favouring the longitudinal movement thereof.

[0029] Therefore, the caps of the invention are configured as a system that can be made up of two or three of the pieces described above, depending on the type of swimming pool.

[0030] Thus, preferably, only the internal closure piece will be used with the external closure piece, without an accessory piece, when the cover must operate in swimming pools with an edge, such that in addition to establishing the lateral movement between the profiles and protecting the end thereof, the movement of the cover can be guided by collision with the walls of the swimming pool.

[0031] However, in the case of infinity or overflow pools, in which the path of the cover is not limited by any of the walls, which are side walls, since they are swimming pools that do not have an edge or coping in which the water overflows over the edges thereof, the cap preferably comprises the internal closure piece, the external closure piece and also the pendulum piece coupled to and hanging on the external closure piece. In this situation it is the pendulum piece that is responsible for guiding the cover. For this purpose, during the process of deploying the panel, the weight of the pendulum piece itself rotates the same until it hangs in a vertical position when the cover rests on the surface of the water. In this way, when the panel is retracted around the motorised shaft, the pendulum piece is retracted and housed in the housing provided for this purpose in the external closure piece, in particular in the lower part thereof, as the cover is raised when it is wound up. The rotation of the pendulum part is completely free, such that it is able to overcome obstacles and avoid snags during the process of winding or unwinding the cover.

[0032] It must be noted that it is not necessary to install the pendulum piece on all the caps of all the profiles of the covering cover swimming pool, but it is advisable to install it at intervals at certain distances on both sides of the covering cover.

[0033] The keel piece, which is complementary to the pendulum piece, has the task of preventing the panel or covering cover of the swimming pool from drifting, and is placed exclusively on the caps of the first profile or slat, opposite to the profile connected to the winding shaft. This anti-drift keel piece allows an initial guiding that greatly helps to correctly deploy the panel or cover along the aforementioned overflow or infinity pools.

[0034] Regardless of the radius of the curve of the partially curved side of its surface, the flange piece allows any gaps that may remain in the curved edges and corners of the swimming pool to be closed with the panel or cover. Preferably there are flange pieces with a curve with a radius of 5 cm and flange pieces with a curve with a radius of radius 18 cm, although other flange pieces with other radii are possible. The use of each flange piece, independently in a profile, or combined in continuous profiles, allows for a more precise fit than by using the standard external cap without any accessory piece as this only allows the effective closing of swimming pools with right-angled corners.

[0035] The assembly of the keel pieces and flange pieces in the housing of the external closure piece of the cap is preferably carried out by first coupling the second coupling element of the accessory piece in the second coupling element of the housing, preferably by inserting the pin of the accessory piece into the hole of the housing, and then coupling the first coupling element of the accessory piece in the first element of the housing, that is, the hook on the transverse shaft.

[0036] This ease of installation allows a quick installation adapted to the surfaces of the swimming pools to be covered, as well as facilitating the replacement of said accessory pieces in the event of breakage or damage.

[0037] There are several advantages provided by the cap of the invention, in particular the following: In the event of detachment or breakage of the external closure piece, the internal closure piece will continue to provide waterproofing to the profiles to ensure that they float and will continue to prevent the lateral displacement of the profiles, which is not currently the case with existing systems. The internal closure piece is internally reinforced with several ribs that improve its physical and mechanical characteristics. The cap as a whole has a hydrodynamic design that facilitates the sliding of the cover over the water surface. In addition, the keel-shaped design of the keel pieces it consists of provides less opposition to wind or water jets, making lateral movement of the cover more difficult. The cap offers the possibility of combining or interchanging different types of accessories depending on the need, as the external closure piece is available in different widths, while maintaining the same characteristics, in order to better adjust the assembly to the actual size of the swimming pool during installation. The cap offers the possibility of installing a pendulum piece on the external closure piece to help guide the panel along its path in infinity pools. This pendulum is made up of a metal core and a self-lubricating polymer coating to prevent rust and to facilitate sliding. Adaptation of the panel or covering cover to the shape of curved corners in swimming pools to better cover the swimming pool. The design of the external closure piece prevents possible harm to the user during use or handling of the system. The external closure piece is easily removable for replacement or maintenance.

[0038] According to the foregoing, a second subject matter of the invention is a profile assembly for a swimming pool covering, comprising a cap having any of the features of the cap described above and a cap for a swimming pool covering having a longitudinal hollow body with two ends defining at least one cavity, the shape of the at least one body of the internal part of the internal closure piece of the cap being complementary to the shape of the at least one cavity of the profile for the press-fit insertion of the cap into the cavity. Likewise, the profile comprises several cavities and the internal part comprises several bodies that are complementary to each other.DESCRIPTION OF THE DRAWINGS

[0039] To complete the description of the present specification and in order to facilitate the understanding of the features of the invention, the present specification includes, as an integral portion thereof, a set of figures of an illustrative and non-limiting nature. Figure 1 shows a perspective view of an exemplary embodiment of the cap for a safety profile for swimming pool covering as per the invention, specifically an example of this without an accessory piece, shown separately, without the profile for which it is intended, and in exploded view, that is, with the internal and external closure piece not coupled together, with the external part of both pieces being visible. Figure 2 shows a perspective view of the internal and external closure piece of the cap, according to the example shown in Figure 1, in this case also shown separately and without being coupled together, in this case showing the internal part thereof. Figure 3 shows a perspective view of one end of the profile and the internal closure piece of the cap, shown without being coupled together. Figure 4 shows a perspective view of the end of the profile with the two pieces of the cap, the internal closure piece and the external closure piece, once they have been coupled thereon. Figure 5 shows a perspective view of another example of the cap of the invention, in this case with a pendulum, being represented in exploded view, showing the external part of the internal and external closure pieces, as well as the configuration of the pendulum separately. Figure 6 shows a partial cross-sectional view of an example of a first accessory piece, a pendulum piece optionally comprising the cap of the invention, showing the internal metal configuration thereof, preferably steel, and the polymer coating. Figures 7-A, 7-B and 7-C show, in their respective perspective views, the way in which the pendulum piece is coupled by press-fitting onto the transverse shaft provided in the housing of the external closure piece by clipping between the hook of the pendulum piece and the shaft of the closure piece, without using any additional fastening element. Figure 8 shows a side elevation view of the assembly of the covering panel, or cover, in the winding phase around the shaft, showing the pendular movement and the vertical arrangement of the pendulum pieces of the caps of the profile until they are housed in the external closure piece thereof. Figures 9-A, 9-B and 9-C show three cross-sectional views of the detail view of three different types of overflow pool in which the cap of the invention includes the pendulum, showing the way in which it acts as a stop against the side wall of the swimming pool in each of them. Figures 10-A and 10-B show two perspective views, front and back, of an alternative accessory piece, namely a keel piece. Figures 11-A, 11-B and 11-C show three views, top perspective plan view and bottom perspective plan view, of an alternative accessory piece, namely a flange piece. Figures 12-A, 12-B and 12-C show three views, top perspective plan view and bottom perspective plan view, of another alternative accessory piece, namely a second shape for a flange piece. Figures 13-A, 13-B and 13-C show, in their respective perspective views, the manner in which the keel piece is coupled by press-fit into the housing of the external closure piece, in particular by inserting a pin of the keel piece into a hole in a wall of the housing of the external piece and then by clipping between the hook of the keel piece and the shaft of the closure piece, and without using any additional fastening element. Figure 14 shows a perspective view of a portion of a covering panel, or cover, for a swimming pool, in which several profiles can be seen connected to each other, with the first profile having a flange piece coupled to the cap and the profiles after the first profile having caps to which different accessory pieces can be coupled, preferably pendulum pieces. Figures 15-A to 15-D show different adaptations of the corners of a covering panel, or cover, of a swimming pool to the curved corners of different swimming pools. PREFERRED EMBODIMENT OF THE INVENTION

[0040] Two examples of the subject matter of the invention are described below. Thus, as can be seen in figures 1 to 4, the cap (1) of the invention, which can be applied for the incorporation thereof in the respective ends of each of the profiles (2) of a safety covering panel or cover (3) for swimming pools, comprises, at least, an internal closure piece (4), which is inserted tightly fitted into the cavities (5) of the end of the profile (2) and has holes (6) for the insertion of sealing material, for example silicone, and an external closure piece (7) which is coupled by means of press-fit through coupling means on the internal piece (4), this external closure piece (7) preferably being removable and interchangeable piece between at least two types of external closure piece (7) with at least two different widths (a, a').

[0041] In one embodiment option, the cap (1) further comprises an accessory piece, or pendulum accessory piece (8) that couples, also by means of press-fit and in an easily removable manner, in an external closure piece (7) of greater width (a) which is provided with a housing (10) or slot, arranged between two walls, and incorporating as a first coupling element (9) of the housing (10) a transverse shaft for fastening and housing said pendulum accessory piece (8) through a first coupling element (14) of the pendulum accessory piece (8), preferably in the form of a hook.

[0042] Preferably, the internal closure piece (4) of the cap is a polycarbonate piece comprising an internal piece (4a) where it has a series of bodies (4.1) separated from each other, each of which has a configuration in accordance with the configuration of each of the different cavities (5) of the profile (2), such that they fit tightly into said cavities (5), there being, on an external part (4b) of the piece, on the opposite side of the internal part (4a), a hole (6) for sealant entry located in line with each of the aforementioned bodies (4.1) which, in turn, are provided with perforations (4.2) in one or more of the walls thereof, for example the upper wall, so that the sealing material passes through the same and is distributed between the same and the cavities (5) of the profile, sealing the connection of the cap (1) to the profile (2).

[0043] Likewise, the interior closure piece (4) preferably also comprises one or more tabs (11) that emerge from the external part (4b) thereof for coupling same to the external closure piece (7).

[0044] Alternatively, the external part (4b) of the internal closure piece (4) internally has one or more reinforcing partitions (12).

[0045] The external closure piece (7) is preferably a polycarbonate piece with a hollow configuration on its inner face (7a) where, in addition to other internal reinforcement partitions (12), there are recesses (13) arranged such that the aforementioned tabs (11) of the external part (4b) of the internal closure piece (4) are coupled by press-fitting therein, while on the outer face (7b) it has a smooth finish.

[0046] Furthermore, when the cap (1) only includes the internal closure piece (4) and the external closure piece (7), as shown in the example in Figures 1 to 4, this option is particularly suitable in coverings (3) for swimming pools with an edge or coping, where the external closure piece (7) acts as a stop. Preferably, said external closure piece (7) has a smaller width (a') than the width of the external closure piece (7) with the housing (10) which has a different width (a). The width of the external closure piece (7) without a housing is preferably 15 mm wide.

[0047] Furthermore, when the cap (1) also includes the housing (10) to receive an accessory piece, for example, a pendulum accessory piece (8), which is a particularly suitable option in coverings (3) for infinity pools, without an edge or coping, as shown in Figures 5 to 9, the external closure piece (7) has a larger width (a), preferably 25 mm or 35 mm.

[0048] In any case, the internal closure piece (4) and the external closure piece (7) have a perimeter configuration similar to the configuration of the profile (2) in that, in addition to coupling together, it defines a keel shape that offers low resistance to the action of wind or water jets of the pool.

[0049] Figure 6 shows how, the pendulum accessory part (8) preferably consists of an elongate piece with an inner metal core (8.1), preferably steel, and an outer coating (8.2) made of polymer material, preferably polycarbonate and self-lubricating. The pendulum accessory piece (8) preferably comprises, at one end thereof, a first coupling element, in the form of a hook (14), which is fastened, by press-fitting, to the first coupling element (9) of the housing (10), in the form of the transverse shaft of the external closure piece (7) of greater width (a), as shown in figures 7-A, to 7-C.

[0050] Figure 6 shows how, during the winding and unwinding process of the covering (3), the weight of the pendulum accessory piece (8) of each cap (1) causes it to rotate until it hangs vertically when it rests on the surface of the water, and when it is wound up or remains retracted, it does so inside the housing (10) of the external closure piece (7).

[0051] Lastly, looking at Figures 9-A, 9-B and 9-C, we can see three examples of situations that can basically occur within the types of infinity pools: A first situation (Figure 9-A), where the walls (15) of the swimming pool are vertical up to the overflow area (16) of the water, in which case the pendulum accessory piece (8) of the cap (1) abuts against said walls of the swimming pool in the process of deploying and retracting the covering (3). A second situation (Figure 9-B), where the upper part of the wall (15) of the swimming pool has an overflow area (16) with a slight slope and the pendulum accessory piece (8) reaches the inner face of the said wall (15) where it can abut to guide the covering (3) in the deployment and retraction process. A third situation (figure 9-C), where, as in the previous case, the upper part of the wall (15) of the swimming pool has a sloped overflow area (16), but the sloped area increasing, and the pendulum accessory piece (8) acts in the same way, but the covering (3) considerably reduces its width.

[0052] The cap as per the invention with a housing (10) in the external closure piece (7), in addition to having a first coupling element (9), may have a second coupling element (18) which is arranged at a distance from the first coupling element (9), preferably at the opposite end of the housing (10) where said first coupling element (9) of the housing (10) is located. This second coupling element (18) of the housing (10) serves to receive other accessory pieces (20, 30, 40), other than the pendulum accessory piece (8), which must not rotate with respect to the first coupling element (9) of the housing (10) of the external closure piece (7). The second coupling element (18) of the housing (10) serves as a second fastening point for the accessory piece (20, 30, 40), and as a complement to the first coupling element (9) of the housing (10).

[0053] The accessory pieces (20, 30, 40) with two coupling elements (23, 24; 33, 34; 43, 44), a first coupling element (24, 34, 44) and a second coupling element (23, 33, 43) can have different shapes and functions when coupled to the external closure piece (7) of the cap (1). The first coupling element (24, 34, 44) of the accessory pieces (20, 30, 40) is coupled to the first coupling element (9) of the housing (10) and the second coupling element (23, 33, 43) of the accessory pieces (20, 30, 40) is coupled to the second coupling element (18) of the housing, thus securing the position of the accessory piece (20, 30, 40) in the cap by preventing movement of the accessory piece (20, 30, 40).

[0054] An example of an accessory piece, shown in Figure 10, with the two coupling elements (23, 24) is a keel accessory piece (20). This keel accessory piece (20) must be installed exclusively on the caps of the first profile of the safety covering panel, or cover, of the swimming pool, and other accessory pieces, such as, for example, the pendulum accessory piece (8) described above, can be arranged on the caps of the successive profiles. The function of the keel accessory piece (20) is to allow the initial guiding of the panel or cover which will greatly contribute to its correct deployment along overflow or infinity pools.

[0055] The keel accessory piece (20) comprises a body formed by a first section (22) and a second section (21) joined at one of the ends thereof, leaving the opposite ends free, both sections forming an angle greater than 90° and less than 180°, preferably between 100° and 135°, the first coupling element (24) being at the free end of the first section (22) and the second coupling element (23) at the end of the first section (22) opposite the free end, in line with the connection end for connecting to the second section (21). The keel accessory piece (20) is preferably made of polycarbonate.

[0056] For the installation of the keel accessory piece (20) on the cap (1) for coupling same to the profile, as shown in Figures 13-A to 13-C, the second coupling element (23), preferably a pin, of the keel accessory piece (20) is coupled to the second coupling element (18), preferably a hole, of the housing (10) of the external closure piece (7) of the cap (1). Subsequently, by rotating the keel accessory piece (20) with respect to the housing (10), the first coupling element (24), preferably a hook, of the keel accessory piece (20) is coupled, preferably by press-fitting, to the first coupling element (9), preferably a transverse shaft in the housing (10), and thus being connected by clipping. The cap with the keel accessory piece (20) is thus integrated in the same. This installation system, or coupling, is simple and quick, thus facilitating the replacement of pieces in case of breakage, damage or change of use.

[0057] Other examples of accessory pieces are shown in Figures 11-A to 11-C and 12-A to 12-C, which show a first flange accessory piece (30) (Figures 11-A, 11-B, 11-C) and a second flange accessory piece (40) (Figures 12-A, 12-B, 12-C). Both flange accessory pieces (30, 40) have two coupling elements (33, 34, 43, 44) for coupling to the external closure piece (7) of the cap (1). These flange accessory pieces (30, 40) serve to close any gaps that may exist between the edges and corners of swimming pools with curves and the covering panel, or cover, of the swimming pool.

[0058] The flange accessory piece (30, 40) comprises a first elongate section (32, 42) with two free ends, connected at one side to a body formed by a flat upper surface (31, 41) with two sides (35, 36; 45, 46) at 90° to each other and a partially curved side (37, 47), the first coupling element (34, 44) being at one free end of the first elongate section (32, 42) and the second coupling element (33, 43) at the opposite free end.

[0059] The partially curved side of the flange accessory piece (30, 40) has a curve with a radius of between 5 cm and 50 cm. Preferably, a first flange accessory piece (30) has a curve with a radius of 5 cm. In an alternative embodiment, another second flange accessory piece (40) has a curve with a radius of 18 cm. These flange accessory pieces (30, 40) are preferably made of polycarbonate.

[0060] The installation of the flange accessory piece (30, 40) on a cap (1) is similar to that already described for the keel piece (20). The second coupling element (33, 43), preferably a pin, of the flange accessory piece (30, 40) is coupled in the second coupling element (18), preferably a hole, of the housing (10) of the external closure piece (7) of the cap (1). Subsequently, by rotating the flange accessory piece (30, 40) with respect to the housing (10), the first coupling element (34, 44), preferably a hook, of the flange accessory piece (30, 40) is coupled, preferably by press-fitting, to the first coupling element (9), preferably a transverse shaft in the housing (10), and thus being connected by clipping. The cap with the flange accessory piece (30, 40) is thus integrated in the same.

[0061] The use of a flange accessory piece (30, 40) or the combination of two, allows a more precise fit than the use of straight caps as they do not incorporate accessory pieces that allow them to adapt to the different shapes of the swimming pool.

[0062] Figure 14 shows a portion of a covering panel, or cover, for a swimming pool formed by different profiles (2) connected together in an articulated manner and which deploys over the swimming pool in the direction of the arrow. This figure shows the first profile with a cap (1) with an external closure piece (7) incorporating a keel accessory piece (20), as well as caps (1) arranged in subsequent profiles ready to receive other accessory pieces, such as, for example, pendulum accessory pieces (8) on the coupling element (9) or flange accessory pieces (30, 40), although the use of the latter (30, 40) is usually limited to the first and / or second profile of the panel or cover, as their function is to adapt the shape of the front corners of the panel or cover to the shape of the corners of the swimming pool. Figures 15-A to 15-D show different adaptations of the covering panel with flange pieces to different corner curvatures of swimming pools.

[0063] For example, Figure 15-A shows a curved corner of a swimming pool (15) with a radius of 50 cm, and the first profile (2) of a covering panel of the swimming pool incorporating a cap with a first flange accessory piece (30) with a radius of 5 cm to adapt to said corner of the swimming pool and to close as much as possible the possible gaps between the panel and the walls (15) of the swimming pool, the caps of the profiles (2) following said first profile being preferably equipped with pendulum pieces (not shown).

[0064] Figure 15- shows a curved corner of a swimming pool (15) with a radius of 100 cm, having the first profile (2) of a covering panel of the swimming pool incorporating a cap with a second flange accessory piece (40) with a radius of 18 cm to adapt to said corner of the swimming pool and to close as much as possible the possible gaps between the panel and the walls (15) of the swimming pool, the caps of the profiles (2) following said first profile being preferably equipped with pendulum pieces (not shown).

[0065] Figure 15-C shows a curved corner of a swimming pool (15) with a radius of 150 cm, having the first profile (2) of a covering panel of the swimming pool incorporating a cap with a second flange accessory piece (40) with a radius of 18 cm followed by a profile (2) with a first flange accessory piece (30) with a radius of 5 cm to adapt to said corner of the swimming pool and to close as much as possible the possible gaps between the panel and the walls (15) of the swimming pool, the caps of the profiles (2) following said first profile being preferably equipped with pendulum pieces (not shown).

[0066] Figure 15-D shows a covering panel, or cover, as in the previous figure, but in a swimming pool (15) with a curved corner with a radius of 200 cm.

Examples

Embodiment Construction

[0040]Two examples of the subject matter of the invention are described below. Thus, as can be seen in figures 1 to 4, the cap (1) of the invention, which can be applied for the incorporation thereof in the respective ends of each of the profiles (2) of a safety covering panel or cover (3) for swimming pools, comprises, at least, an internal closure piece (4), which is inserted tightly fitted into the cavities (5) of the end of the profile (2) and has holes (6) for the insertion of sealing material, for example silicone, and an external closure piece (7) which is coupled by means of press-fit through coupling means on the internal piece (4), this external closure piece (7) preferably being removable and interchangeable piece between at least two types of external closure piece (7) with at least two different widths (a, a').

[0041]In one embodiment option, the cap (1) further comprises an accessory piece, or pendulum accessory piece (8) that couples, also by means of press-fit and in ...

Claims

1. A profile (2) cap for a swimming pool covering, characterised in that it comprises at least: - an internal closure piece (4), with an internal part (4a) on one side, to be inserted into a cavity (5) at the end of the profile (2), and an external part (4b) on the opposite side, said external part (4b) being provided with at least one hole (6) for the insertion of sealing material into said internal closure piece (4), - an external closure piece (7), and - coupling means for coupling between the external part (4b) of the internal closure piece (4) and the external closure piece (7).

2. The cap according to claim 1, characterised in that the external closure piece (7) comprises a housing (10) between two walls and a first coupling element (9) in said housing (10).

3. The cap according to claim 2, characterised in that the external closure piece (7) comprises a second coupling element (18) of the housing (10) on the side opposite to where the first coupling element (9) is located.

4. The cap according to any of the preceding claims, characterised in that the internal part (4a) comprises at least one perforation (4.2) connected thereto, at least one, hole (6), for the sealing material to pass through the same.

5. The cap according to claim 1, characterised in that the coupling means for coupling between the internal closure piece (4) and the external closure piece (7) are at least one tab (11) emerging from the external part (4b) thereof for coupling in at least one recess (13) provided in the external closure piece (7).

6. The cap according to claim 1, characterised in that the internal part (4a) of the internal closure piece (4) is divided into at least two bodies (4.1).

7. The cap according to any of claims 2 to 6, characterised in that it comprises an accessory piece (8, 20, 30, 40) with a first coupling element (14, 24, 34, 44) for coupling to the first coupling element (9) of the housing (10) of the external closure piece (7).

8. The cap according to claim 7, characterised in that the accessory piece (20, 30, 40) comprises a second coupling element (23, 33, 43), distanced from the first coupling element (24, 34, 44), for coupling to the second coupling element (18) of the housing (10) of the external closure piece (7).

9. The cap according to claim 7, characterised in that the accessory piece is a pendulum accessory piece (8) with an elongate body with two ends, one of said ends having the first coupling element (14).

10. The cap according to claim 9, characterised in that the pendulum accessory piece (8) comprises an inner metal core (8.1) and an outer coating (8.2) made of polymer material to protect and prevent oxidation of the metal material.

11. The cap according to any of claims 7 to 10, characterised in that the first coupling element of the housing (10) is a transverse shaft between the two walls of the housing (10) and the first coupling element of the accessory piece (8, 20, 30, 40) is a hook to be coupled together by press-fit.

12. A profile assembly for a swimming pool covering, characterised in that it comprises a cap according to any of claims 1 to 11 and a profile (2) for a swimming pool covering, this profile (2) having at least one longitudinal hollow body with two ends defining at least one cavity (5), the shape of the at least one body (4.1) of the internal part of the internal closure part (4a) of the cap being complementary to the shape of the at least one cavity (5) of the profile (2) for the press-fit insertion of the cap (1) into the cavity (5).

13. The assembly according to claim 12, characterised in that the profile (2) comprises several cavities (5) and the internal part (4a) comprises several bodies (4.1) that are complementary to each other.

14. The assembly according to the preceding claims 12 and 13, characterised in that it comprises several profiles (2) connected together to form a covering cover (3) with a cap at each of the two ends of each profile (2), said covering cover (3) having several profiles connected together, arranged immediately behind a first free profile and between said first profile and a last profile, the latter is preferably connected to a winding shaft.

15. The assembly according to claim 14, characterised in that at least the first free profile has a cap with an accessory piece (8, 20, 30, 40).

Images