EP3305378B1 - Racquet, in particular structure of padel racquet - Google Patents
Racquet, in particular structure of padel racquet Download PDFInfo
- Publication number
- EP3305378B1 EP3305378B1 EP17194468.9A EP17194468A EP3305378B1 EP 3305378 B1 EP3305378 B1 EP 3305378B1 EP 17194468 A EP17194468 A EP 17194468A EP 3305378 B1 EP3305378 B1 EP 3305378B1
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- Prior art keywords
- racket
- edge element
- edge
- layers
- face
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Images
Classifications
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
- A63B59/40—Rackets or the like with flat striking surfaces for hitting a ball in the air, e.g. for table tennis
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B60/00—Details or accessories of golf clubs, bats, rackets or the like
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2102/00—Application of clubs, bats, rackets or the like to the sporting activity ; particular sports involving the use of balls and clubs, bats, rackets, or the like
- A63B2102/08—Paddle tennis, padel tennis or platform tennis
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
- A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
- A63B2225/01—Special aerodynamic features, e.g. airfoil shapes, wings or air passages
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B59/00—Bats, rackets, or the like, not covered by groups A63B49/00 - A63B57/00
- A63B59/40—Rackets or the like with flat striking surfaces for hitting a ball in the air, e.g. for table tennis
- A63B59/48—Rackets or the like with flat striking surfaces for hitting a ball in the air, e.g. for table tennis with perforated surfaces
Definitions
- the invention relates to a racket, for hitting a ball, for practicing Padel's game.
- Padel is a ball game that is played with a racket without ropes, whose striking zone is full or almost full as it may have holes crossing transversely the head of the racket. Padel's game is played on a separate field in two parts by a net and surrounded by walls, the ball being able to bounce on the ground and also on the walls.
- Padel's racket consists of three parts, which are the head, the heart and the neck.
- the head corresponds to the strike zone of the ball
- the neck is the part that is tightened by the player's hand
- the heart is the area that connects the head to the handle of the racket.
- the head of a padel racket consists of a core bordered on its periphery by a peripheral reinforcing tube, as described in the document ES 2,395,181 of the prior art.
- the lower and upper faces of the core are covered by one or more layers of composite fibers and a protective layer, all of these layers being intended to strengthen and form the striking surfaces of the racket.
- the protective layer also extends over the lateral periphery of the head of the racket and in particular the two protective layers forming the striking surfaces meet on the side face forming the periphery of the racket and form a connecting line.
- This embodiment has the disadvantage that this connecting line located on the periphery of the racket is fragile, unsightly. Also sanding, painting and long, thorough and expensive varnishing are necessary to obtain a completely finished and marketable racket.
- the edge of the racket can also accommodate elements with elastic or even viscoelastic properties, which separate the two striking surfaces, as described in document WO2012 / 089931 .
- padel rackets can have either a solid area at the heart of the racket, as in the patent US20150024879 , a hollow or recessed area in the area of the heart of the racket, as in the patent GB2445351 .
- the protective layer and possibly the reinforcement layers mentioned above and covering the striking surfaces extend in the central part of the racket to form the edges of the recess and join together forming a connecting line bordering the recess generally located in the main plane of symmetry of the racket.
- This embodiment has the disadvantage that this connecting line which borders the central recess of the racket is fragile, unsightly and difficult to access to achieve the sanding, painting and varnishing steps in the case of a racket. hollowed heart.
- the object of the invention is to provide a new padel racket structure which has a racket head circumference and / or the edge of the central recess racket reinforced, aesthetic and durable in time.
- Another object of the invention is to reduce the finishing steps of the racket especially after the exit of the mold.
- the invention relates to a racket for practicing the padel game which comprises a core covered on its underside by at least one lower layer and on its upper face by at least one upper layer forming the two opposite striking surfaces. of the racket, the two striking surfaces being connected to each other by substantially perpendicular surfaces forming the periphery and the heart of the racket, wherein the perpendicular surfaces comprise at least one edge element.
- this racket is characterized in that the upper and lower layers extend laterally to cover the substantially perpendicular surfaces and said edge element, said upper and lower layers having their outer contour at the outermost surface. said edge element.
- the vocal element forms a protruding zone laterally with respect to the striking face.
- the outer surface of the edge element that is to say the area farthest from the center of the racket forms the perimeter of the racket, when it is viewed perpendicular to the striking surface.
- This singing element is covered by the layers that extend from the striking surface to the outer face of the edge element, coming tangent to it, so that the edge of these layers is apparent at of the visible face of the singing element.
- the lower face of the upper layer rests, possibly indirectly, on the upper face of the edge element, while symmetrically, the upper face of the lower layer is facing the lower face of the singing element.
- the upper and lower layers are thus flush with the outer face of the edge element.
- the manufacture of the racket can thus include a finishing step by leveling the edge and upper and lower layers that appear superimposed on the edge of the racket.
- the racket according to the invention can incorporate one or more of the following characteristics.
- the edge element is an elongated reinforcing element, that is to say it has a certain thickness and a certain width and its length is much greater than its width and its thickness.
- This edge element comprises in particular a lower face located on the side of the lower striking surface and an upper face located on the side of the upper striking surface, the lower face being covered by an end portion of at least one of the lower layers and the upper face being covered by an end portion of at least one of the upper layers.
- the racket may include end portions that are formed by the end of the protective layer of the racket's striking surface.
- the racket may also comprise end portions which are formed by the ends of two superposed layers in the thickness of the racket, one of the layers being constituted by one of the reinforcing layers of the striking surface of the racket and the other layer being constituted by the outer protective layer of the racket.
- the edge element can be positioned in such a way that its median plane lies on the plane of symmetry of the head of the racket.
- the edge element may consist of several elements superimposed in the direction of the thickness of the racket, and / or may consist of several superimposed elements in the direction of its width in the direction x1.
- the inner face of the edge element can be connected to the core of the racket by means of at least one reinforcing element, this reinforcing element can be a hollow tube or a combination of a tube and a a layer of composite fibers and / or a metal layer.
- the edge element may be of varying thickness and / or width but the edge element may be of constant thickness and width.
- the thickness of the assembly formed by the edge element and the end portions from the lower and upper layers is less than the total thickness of the racket.
- the edge element is positioned on the outer periphery of the racket forming a surface substantially perpendicular to the striking surfaces.
- the lower face of this edge element located at the outer periphery of the racket is covered by an end portion of at least one of the lower layers from one of the striking surfaces and the upper face of this edge element. is covered by an end portion of at least one of the upper layers from the other striking surface.
- the edge element extends over at least the front rim of the racquet head. In other configurations, the edge element may extend around the front edge of the racquet head and extend to the top of the racquet handle.
- the racket may have a recess in the heart and the edge element is then positioned on the edges of this recess forming a surface substantially perpendicular to the striking surfaces of the racket.
- This edge element positioned on the edges of the recess can border on the one hand the core in the upper part of the recess and on the other hand the two branches in the side portions of the recess.
- the racket may have at least two edge elements located on surfaces substantially perpendicular to the striking surfaces of the racket, a edge element being positioned on the edges of this recess and the other edge element being positioned on the outer periphery of the racket.
- the profile of the outer face of the edge element is preferably obtained by machining, but other cutting methods are possible.
- the method of manufacturing a racket according to the invention can use a particular racket mold where the components of the racket are positioned in a mold having three parts, a lower part forming the bottom of the mold, an intermediate part receiving the edge element and an upper part forming the lid of the mold.
- Figures 1 to 9 illustrate the invention according to a first variant in which the padel racket is provided only with a singing element on its outer circumference
- Figures 10 to 13 illustrate the invention according to a second variant in which the padel racket is provided with a vocal element located on the edges of the central recess
- Figures 14 to 16 illustrate the invention according to a third variant in which the padel racket is provided with a singing element both on its outer periphery and on the edges of the central recess.
- the orthonormal coordinate system (O, x, y, z) is defined as illustrated.
- figure 1 the direction x corresponding to the transverse direction of the racket, that is to say in the direction of its width
- the direction y corresponding to the longitudinal direction of the racket, that is to say in the direction of its length , that is to say from the end of the handle towards the front end of the racket head
- the direction z corresponding to the direction oriented according to its thickness.
- the point O corresponds to the center of the head 1 of the racket.
- FIGS. Figures 1 to 9 The first variant of the invention in which the racket comprises a singing element at its outer periphery is illustrated in FIGS. Figures 1 to 9 and is explained below.
- Padel racket usually comprises a head 1 or sieve having two faces 4, 5 oriented parallel to the plane (x, y) of the racket, these two faces constituting the two striking surfaces of the racket which are intended to hit in the ball. These two surfaces are opposite each other, one face being used when performing a forehand and the other side being used when performing a backhand.
- the zone of the heart has a recess 15 limited by two lateral branches 14a and 14b.
- the upper and lower surfaces 4 and 5 are therefore also connected to one another by substantially perpendicular surfaces forming the edge of the recess 15.
- the head 1 of the racket is connected to the handle 3 which is intended to be taken in hand by the player.
- the connection between the head 1 and the handle 3 is called the heart 2 of the racket.
- the front of the racket is on the opposite side of the handle.
- the head 1 of the racket generally comprises holes 100 which cross the entire thickness of the racket in the z direction to lighten the racket and improve its behavior during play and typing.
- the lateral edge of the head 1 of the racket and the heart 2 of the racket called slice of the racket, forms the periphery 6 of the racket.
- This periphery 6 corresponds to the surface formed by the outer profile 60 of the section S located in the plane (x1, z) which describes a rotation of an angle ⁇ of zero to 360 degrees around the center O of the racket.
- This periphery 6 comprises according to the invention a set of edge 7 comprising a vocal element 8 which is here visible and visible on the edge of the racket which is formed by a surface substantially perpendicular to the striking surfaces or perpendicular to the plane (x , y).
- the edge assembly 7 consists on the one hand of the edge element 8 in its central part but also of two adjacent elements positioned on either side of the lower face 8d and upper face 8c of the edge element 8 These two adjacent elements are constituted in this first embodiment by the end portions of superimposed thin layers 12a, 13a and 12b, 13b which will be detailed later.
- This edge element 8 has a shape of elongated cord, of substantially square or rectangular section. On the other hand, other triangular or oval shaped shapes with rounded or straight sides can also be envisaged for this singing element 8.
- the structure of the head of the racket is composed in its central part of a core 9 formed by a layer of generally thermoplastic polymeric foam, formed for example of an ethylene foam vinyl acetal or EVA or optionally polyurethane.
- This light and deformable core 9 forms the central inner layer centered on the median plane or main plane of symmetry of the racket which is parallel to the striking planes and therefore parallel to the plane (x, y).
- This core 9 is bordered laterally by a tubular reinforcement 10 for reinforcing the periphery 6 or the edge of the racket.
- This reinforcement is composed of glass composite fibers and / or carbon impregnated with resin.
- this tube 10 is shaped by inflation during the molding of the racket and the inner portion 10a of the tube 10 is hollow.
- the lower and upper faces of the core 9 are covered with at least one reinforcing layer 11a, 11b, 12a, 12b, preferably made of composite materials formed of one or more fiber plies of glass fiber or fiberglass type. Carbon impregnated with a resin, epoxy type for example, these fibers can take various orientations. These reinforcing layers 11a, 12a, 11b, 12b are they even covered with a protective layer 13a or 13b.
- the upper and lower reinforcement layers 11a and 11b extend on the lateral sides of the racket forming the surfaces substantially perpendicular to the striking planes of the racket.
- the reinforcing layers extend on the outer face of the tube 10 to reinforce the internal structure of the edge of the racket, the ends of the layers 11a and 11b meeting on the plane of symmetry of the racket parallel to the plane (x, y).
- reinforcing layers 11a and 11b are not visible on the edge 6 of the racket because they are covered by other reinforcing layers 12a, 12b, and by the protective layers 13a, 13b and by the edge element 8, detailed below.
- the layers 12a and 12b are layers of resin-impregnated glass or carbon-based composite fibers which are superimposed respectively on the reinforcing layers 11a and 11b covering the core to reinforce the striking surfaces of the racket. These layers 12a and 12b reinforce not only the striking surfaces of the racket but also the edge of the racket as these layers 12a, 12b extend beyond the striking surfaces of the racket on the lateral sides of the racket. All the reinforcing layers 11a, 11b, 12a, 12b, as well as the tube 10 contribute to giving the racket the flexural and torsional stiffness properties necessary to obtain the proper behavior of the racket during the play and striking of the racket. ball.
- the protective layers 13a and 13b form the outer layers of the racket at the lower and upper sides of the racket and protect the racket. These protective layers 13a and 13b may carry the decoration on the outer or inner face and may be opaque or transparent.
- the material used for these protective layers is preferably polyurethane or Acrylonitrile Butadiene Styrene or ABS, low rigidity which contributes little to the total rigidity of the racket.
- the protective layers 13a and 13b cover the striking surfaces of the racket and also extend on the edge 6 of the racket.
- These protective layers 13a and 13b also extend in the area of the heart 2 of the racket, up to the handle 3.
- the perimeter 6 of the racket comprises a singing element 8 in the form of elongated cord, of substantially square or rectangular section, this edge element being an elongated reinforcing element around the racquet.
- this edge element 8 is curved in shape to fit the profile of the perimeter 6 of the racket.
- This edge element 8 has characteristic faces which are its lower faces 8d and 8c upper turned respectively to the lower faces 5 and upper 4 of the racket forming the striking surfaces, and its inner face 8a oriented towards the center O of the racket and its outer face 8d generally visible from the outside of the racket.
- the reinforcing layers 12a, 12b and the protective layers 13a and 13b extend to the outer lateral sides of the racket and are visible on the edge 6 of the racket on either side of the lower faces 8d and 8c of upper the singing element 8 of the racket. These layers cover the lower and upper faces of the edge element 8 by being bonded together and they make it possible to protect these faces of the edge element.
- the upper 8c and lower 8d faces of this edge element 8 are each covered by two layers.
- the end portion of the upper reinforcing layer 12a covers and comes into contact with the upper face 8c of the edge element 8, while the end portion of the lower reinforcing layer 12b covers and comes in contact with the lower face 8d of the edge element 8.
- the ends of the reinforcing or protective layers which can measure from 0 to 2 or 3 mm from the extreme edge of these layers, will be heard by end portions.
- These end portions of these layers 12a, 12b correspond to the portion of the layers 12a and 12b which are secured to the lower and upper faces of the edge element 8 by gluing.
- edge element 8 extends from the extreme edge of the layers 12a and 12b towards the center of the racket over a few millimeters, which may reach about 5 to 6 mm, but preferably over a distance of between 1 and 2mm.
- this bonding is performed during the molding of the racket and the glue is then constituted by the impregnating resin of the composite fibers forming the various composite layers of the racket.
- This outer zone consisting of the edge element 8 of thickness e8 and the upper end portions of thickness e1 and lower thickness e2 forms a tight zone provided by the glue used.
- the internal structure of the racket is protected from the external moisture.
- the end portion of the upper protective layer 13a indirectly covers the upper face 8c of the edge element 8, this end portion coming into contact with the end portion of the upper reinforcing layer 12a.
- the end portion of the lower protection layer 13b indirectly covers the lower face 8d of the edge element 8, this end portion coming into contact with the end portion of the lower reinforcing layer 12b .
- the end portions of the layers 12a, 12b, 13a, 13b have a radius of curvature whose center of curvature is located towards the outside of the padel racket, on the side of the upper face of the racket for the portions of the paddle. upper end and the side of the underside of the racket for the lower end portions.
- This radius of curvature can be modified according to the shape of the mold of the racket. In particular this radius of curvature could tend towards a right angle.
- the inner face 8a of this edge element 8 is bonded by bonding to the outer faces of the reinforcing layers 11a and 11b and this inner face 8a substantially matches the shape of the outer faces of the reinforcing layers 11a and 11b in the zone of junction of these two reinforcements.
- the outer face 8b of this element of song opens on the outside of the periphery 6 of the racket, this face 8b is therefore generally visible from the outside of the racket.
- edge element 8 is secured to the structure by three of its faces, that is to say by its inner, lower and upper faces.
- the edge element 8 can be made of different flexible materials to be able to be shaped when placing the oval shape of the head of the racket and follow the periphery 6 of the racket. These materials may be, for example, plastics, fiber filled plastics, polymers, natural or synthetic rubbers, thin layers of metallic material, or composite fiber layers. The choice of material makes it possible to adjust the stiffness of the racket head and even to give it damping properties.
- the material of the edge element 8 is also chosen so that it resists wear, friction and impact, to protect the racket at the level of the slice 6 which undergoes many strokes and impacts during its use during the game
- the edge element 8 may consist of a single material in its thickness e8 and in its width 18. But this edge element 8 may also be composed of several superimposed materials in its thickness e8 measured in the direction z in the direction the thickness of the racket or even in its width 18 measured in the direction x1. In the case of the superposition in the width of the edge element 8, the different materials then follow one another from the inner side 8a of the edge element 8 towards the outer side 8b of the edge element 8. In the in the case of the superposition of materials in the thickness of the edge element 8, different layers of materials are stacked on each other from the lower face 8d of the edge element 8 to the upper face 8c of the element 8. These superimpositions of materials, both in thickness and in width, make it possible to optimize the characteristics of stiffness and damping of the edge of the racket.
- This edge element 8 may also consist of several elements juxtaposed in the longitudinal direction of the edge element 8, that is to say along its length, which may be chosen of different colors and / or different materials. Moreover, this edge element is generally of thickness e8 and of width 18 constant throughout its length as illustrated in FIG. figure 7 , but its thickness e8 and / or its width 18 may be variable along its length. For example, as shown in figure 8 , the edge element 8 has a variable thickness e8 along its length which has zones 80 in which the thickness e8 is maximum and intermediate zones 81, 82, 83, 84 where the thickness e8 is lower.
- FIG. figure 9 Another embodiment concerning the edge element 8 is illustrated in FIG. figure 9 .
- the edge element 8 does not extend over the entire periphery of the racket head 1 but extends over an area of more limited length, and in particular only on the front part of the head 1 of the racket, this allowing to vary the inertia of the racket mainly racket head.
- the side face forming the periphery 6 of the racket comprises a vocal element 8 whose center plane is positioned on the plane of symmetry of the racket parallel to the plane (x, y).
- the thickness e8 of this edge element 8 is smaller than the total thickness E of the head of the racket.
- good results are obtained for a racket whose edge element 8 has a thickness less than half the total thickness E of the racket, or even preferably less than a quarter of the total thickness E of the racket. racket.
- a vocal element 8 of thickness e8 between 3mm and 4.5mm gives a good behavior.
- the thickness formed by the edge assembly constituted by the sum of the thickness e8 of the edge element 8 and the thicknesses e1 and e2 of the end portions of the lower and upper layers covering this element of edge 8 in the lower and upper part is less than or equal to the total thickness E of the head of the racket.
- the median plane of the edge element 8 could be shifted by a certain distance in the z direction of the plane of symmetry of the racket, this to obtain an asymmetrical behavior of the racket during the Strikes in forehand and backhand.
- the reinforcing layers 110a, 110b positioned directly on the upper and lower faces of the core 9 stop laterally at the inner face of the tube 10 and do not descend not on the side face of the racket as in the first embodiment.
- the reinforcing layers 12a and 12b as well as the protective layers 13a and 13b which extend on the upper and lower faces of the racket extend on the edge 6 of the racket by covering the outer face of the tube 10.
- the reinforcing layers 12a and 12b cover the outer face of the tube 10 and then extend by their end portions respectively on the top 8c and lower 8d of the edge element 8 to protect and ensure the cohesion of the structure snowshoeing, especially at the level of the slice 6 of the racket, this thanks to the collage.
- the protective layers 13a and 13b respectively cover the outer faces of the reinforcing layers 12a and 12b and extend indirectly through their end portions at the upper and lower faces of the edge element 8.
- the reinforcing layers 11a and 11b do not cover the upper 8c and lower 8d faces of the edge element 8 but extend inside the lateral sides and are positioned between the outer face of the tube 10 and the inner face 8a of the edge element 8. In this embodiment, only the end portions of the protective layers 13a and 13b respectively come into contact with the upper faces 8c and lower 8d of the edge element 8.
- all the components of the racket namely the protective layers 13a, 13b, the reinforcements 11a, 11b, 12a, 12b previously impregnated with resin, the core 9, the reinforcing tube 10 provided with an inner inflation liner, the edge element 8, are positioned in a mold.
- the mold is specifically adapted for the positioning of the edge element 8.
- the components of the racket are positioned in a mold having three parts, a lower part forming the bottom of the mold, an intermediate part receiving the element edge and an upper part forming the lid of the mold.
- the spacer part allows to space the lower and upper parts of the mold. It can be easily changed from one model of racket to another model and can be adapted to singing elements 8 different in thickness, width and even length.
- This intermediate element or third part of the mold is preferably made of two elements juxtaposed to facilitate the demolding of the racket. These two juxtaposed elements make it possible respectively to receive the left part of the edge element 8 forming the left part of the racket and the right part of the edge element 8 forming the right part of the racket, the edge element being him preferably in one piece. Each of these two left and right mold elements extend from the head 1 of the racket to the end of the handle 3. These two mold members also each have a bore which allows the reinforcing layers 12a, 12b and the protective layers 13a, 13b to be positioned above and below the edge member 8 protruding from the outer face 8b of the edge member. Furthermore, this third part or intermediate part may be composed of a single element, or more than two elements if necessary.
- an inflation phase can inflate the hollow tube and press against the core on the one hand and the walls of the mold. 'somewhere else.
- the molding phase is performed by applying the particular and known temperature and pressure conditions, this allowing the polymerization of the resin to obtain a semi-finished racket at the exit of the molding. After this molding phase, some finishing steps are necessary.
- the edge element 8 as well as the end portions of the reinforcing layers 12a, 12b and the end portions of the protective layers 13a, 13b bonded to the upper faces 8c and bottom 8d of the edge member 8 protrude in excess and excess impregnating resin flowed through the bonding areas between these different layers during molding. Also, this excess material and these burrs must be removed by a suitable cutting method.
- a machining is performed on the edge 6 of the racket, this in order to obtain the side B of the racket which comprises the outer face 8b of the edge element 8 and the end portions of the layers 13a , 13b, 12a, 12b. Machining makes it possible to obtain a clean cut, quickly and reproducibly from one racket to another. This is very advantageous compared to the long and delicate sanding operations that are often necessary in this area where usually the ends of the layers 13a, 13b, 12a, 12b come together end to end.
- This machining can be performed by any conventional method of machining, or by wire machining, or by laser cutting for example. Moreover, other cutting methods known from the prior art, such as, for example, punching or stamping could also be used.
- the outer face 8b of the edge element 8 thus obtained on the finished racket does not therefore require the application of an additional tape whose positioning is not easy to resume after molding and which is often fragile.
- This machining makes it possible to cut the edge element 8 provided on these lower and upper faces with end portions of one or more lower and upper layers, preferably at an angle of 90 degrees with respect to the planes formed by the striking, or with an inclined angle to the striking surfaces.
- FIGS. Figures 10 to 13 The second variant of the invention in which the racket comprises a singing element only at the edge of the central recess in the zone of the heart of the racket is illustrated in FIGS. Figures 10 to 13 and is explained below.
- the racket In the zone of the heart 2 of the racket, the racket has a recess 15 bordered laterally by two branches 14a and 14b. These two branches 14a, 14b connect the striking zones 4, 5 of the racket to the handle 3 of the racket.
- the inner surface of the branch 14a forms one of the lateral surfaces 15a of the recess 15, while the inner surface of the other branch 14b forms the other lateral surface 15b of the recess 15. These surfaces 15a and 15b join together at the upper part of the handle 3.
- the upper part of the recess is formed by the inner surface 15c positioned in the lower part of the striking surfaces 4, 5 below the core 9.
- the periphery of the recess 15 is formed by the surfaces 15a, 15b and 15c which constitute surfaces substantially perpendicular to the striking surfaces 4 and 5.
- This recess 15 is substantially triangular in shape, but other forms of the hexagonal, round or oval type could also be suitable.
- the edges of the recess 15 formed by the surfaces 15a, 15b, 15c oriented substantially perpendicularly to the striking surfaces 4,5 of the racket, in other words substantially perpendicular to the plane (x, y) comprise a singing element 80, in the form of curved elongated cord conforming to the shape of the contours of the recess 15.
- This edge element 80 is quite comparable to the edge element 8 described above.
- the mechanical and physical characteristics used for the edge element 80 are therefore similar to those described for the edge element 8.
- This singing element 80 appears in section on the figure 12 , the section being made at the side branch 14a located at the heart 2 of the racket.
- the section of the edge element 80 is a quadrilateral, in particular a rectangle composed of the sides 80a, 80b, 80c, and 80d.
- the outer side 80b is opening on the recess 15 and is therefore visible from the outside of the racket.
- the inner side 80a of the element 80 is secured by bonding with the reinforcing fibers 11a, 11b, themselves bonded to the reinforcing tube 10.
- the lower 80d and upper 80c sides of the edge element 80 are covered respectively by the ends of the reinforcing layers 12a, 12b or the end portions of these layers, these reinforcing layers 12a, 12b being themselves covered by the ends of the protective layers 13a, 13b.
- the upper 80c and lower 80d sides are protected by reinforcement layers.
- the three sides 80a, 80c, 80d of the edge element 80 are secured by gluing to the structure of the racket, this during molding.
- the surface formed by the outer side 80b of the edge 80 and the ends of the reinforcing layers 12a, 12b and 13a, 13b protection forms a surface oriented substantially perpendicular to the striking surfaces 4,5.
- This surface is planar preference and obtained by cutting as for example by machining after molding the racket, but other forms more rounded or angular could also be considered.
- the edge element 80 bears against the transverse face of the core 9 directly or indirectly via reinforcing fibers.
- This edge element 80 may not completely circle the edge of the recess 15, but in other embodiments, it could be located only on a portion of one of the edges, or it could be covered at least one of the edges. one of the edges of the recess 15.
- the median plane of the edge element 80 is located on the main plane of symmetry of the racket which is parallel to the plane (x, y).
- the edge element 80 makes it possible on the one hand to partially or completely stiffen the edges of the recess 15, and on the other hand, to ensure good bonding between the lower and upper layers and to obtain edges of the recess 15 clean and aesthetic on the finished racket.
- the racket has no edge element 8 at its outer periphery 6.
- the reinforcing layers 12a and 12b and the protective layers 13a and 13b are joined end to end on the connecting line L, as illustrated in FIGS. Figures 12 and 13 .
- the third variant of the invention in which the racket comprises not only a vocal element at its outer periphery but also a vocal element at the edge of the central recess in the zone of the heart of the racket, is illustrated the Figures 14 and 15 explained below.
- This third variant is a combination of the first and second variants described above.
- the racket has at the level of the surfaces oriented substantially perpendicular to the striking surfaces 4,5, not only an element 8 on the outside perimeter 6 of the racket, but also a vocal element 80 on the edges of the recess 15.
- the edge element 8 has the same characteristics as those described in the first variant, while the edge element 80 has the same characteristics as those described in the second variant.
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Description
L'invention concerne une raquette, permettant de frapper une balle, destinée à la pratique du jeu de Padel.The invention relates to a racket, for hitting a ball, for practicing Padel's game.
Le Padel est un jeu de balle qui se joue avec une raquette sans cordes, dont la zone de frappe est pleine ou quasiment pleine étant donné qu'elle peut comporter des trous traversant transversalement la tête de la raquette. Le jeu de Padel se joue sur un terrain séparé en deux parties par un filet et entouré de murs, la balle pouvant rebondir au sol et également sur les murs.Padel is a ball game that is played with a racket without ropes, whose striking zone is full or almost full as it may have holes crossing transversely the head of the racket. Padel's game is played on a separate field in two parts by a net and surrounded by walls, the ball being able to bounce on the ground and also on the walls.
La raquette de Padel est constituée de trois parties, qui sont la tête, le coeur et le manche. La tête correspond à la zone de frappe de la balle, le manche correspond à la partie qui est serrée par la main du joueur et le coeur est la zone qui relie la tête au manche de la raquette.Padel's racket consists of three parts, which are the head, the heart and the neck. The head corresponds to the strike zone of the ball, the neck is the part that is tightened by the player's hand and the heart is the area that connects the head to the handle of the racket.
D'une façon générale la tête d'une raquette de padel est constituée d'un noyau bordé sur son pourtour par un tube périphérique de renfort, comme décrit dans le document
Dans ce document, les faces inférieure et supérieure du noyau sont recouvertes par une ou plusieurs couches de fibres composites et par une couche de protection, toutes ces couches étant destinées à renforcer et à former les surfaces de frappe de la raquette. La couche de protection s'étend également sur le pourtour latéral de la tête de la raquette et en particulier les deux couches de protection formant les surfaces de frappe se rejoignent sur la face latérale formant le pourtour de la raquette et forment une ligne de liaison.In this document, the lower and upper faces of the core are covered by one or more layers of composite fibers and a protective layer, all of these layers being intended to strengthen and form the striking surfaces of the racket. The protective layer also extends over the lateral periphery of the head of the racket and in particular the two protective layers forming the striking surfaces meet on the side face forming the periphery of the racket and form a connecting line.
Cette réalisation présente l'inconvénient que cette ligne de liaison située sur le pourtour de la raquette est fragile, peu esthétique. Aussi des étapes de ponçage, de peinture et de vernissage longues, minutieuses et couteuses sont nécessaires pour obtenir une raquette totalement finie et commercialisable.This embodiment has the disadvantage that this connecting line located on the periphery of the racket is fragile, unsightly. Also sanding, painting and long, thorough and expensive varnishing are necessary to obtain a completely finished and marketable racket.
Pour éviter ces étapes fastidieuses, voire pour augmenter la protection de la tranche de la raquette, comme décrit dans le document
La tranche de la raquette peut aussi accueillir des éléments aux propriétés élastiques voire viscoélastiques, qui séparent les deux surfaces de frappe, comme décrit dans le document
Par ailleurs, les raquettes de Padel peuvent présenter soit une zone pleine au niveau du coeur de la raquette, comme dans le brevet
Cette réalisation présente l'inconvénient que cette ligne de liaison qui borde l'évidement central de la raquette est fragile, peu esthétique et difficile d'accès pour réaliser les étapes de ponçage, de peinture et de vernissage dans le cas d'une raquette à coeur évidé.This embodiment has the disadvantage that this connecting line which borders the central recess of the racket is fragile, unsightly and difficult to access to achieve the sanding, painting and varnishing steps in the case of a racket. hollowed heart.
Aussi, pour remédier à ses inconvénients, le but de l'invention est de proposer une nouvelle structure de raquette de padel qui présente un pourtour de tête de raquette et /ou le bord de l'évidement central de la raquette renforcés, esthétiques et durables dans le temps.Also, to overcome its disadvantages, the object of the invention is to provide a new padel racket structure which has a racket head circumference and / or the edge of the central recess racket reinforced, aesthetic and durable in time.
Un autre but de l'invention est de réduire les étapes de finition de la raquette en particulier après la sortie du moule.Another object of the invention is to reduce the finishing steps of the racket especially after the exit of the mold.
Plus précisément l'invention porte sur une raquette destinée à la pratique du jeu de padel qui comprend un noyau recouvert sur sa face inférieure par au moins une couche inférieure et sur sa face supérieure par au moins une couche supérieure formant les deux surfaces de frappe opposées de la raquette, les deux surfaces de frappe étant reliées l'une à l'autre par des surfaces sensiblement perpendiculaires formant le pourtour et le coeur de la raquette, dans laquelle les surfaces perpendiculaires comportent au moins un élément de chant.More specifically, the invention relates to a racket for practicing the padel game which comprises a core covered on its underside by at least one lower layer and on its upper face by at least one upper layer forming the two opposite striking surfaces. of the racket, the two striking surfaces being connected to each other by substantially perpendicular surfaces forming the periphery and the heart of the racket, wherein the perpendicular surfaces comprise at least one edge element.
Conformément à l'invention, cette raquette se caractérise en ce que les couches supérieure et inférieure se prolongent latéralement pour recouvrir les surfaces sensiblement perpendiculaires et ledit élément de chant, lesdites couches supérieur et inférieure ayant leur contour extérieur au niveau de la surface la plus extérieure dudit élément de chant.According to the invention, this racket is characterized in that the upper and lower layers extend laterally to cover the substantially perpendicular surfaces and said edge element, said upper and lower layers having their outer contour at the outermost surface. said edge element.
Autrement dit, l'élément de chant forme une zone proéminente latéralement par rapport à la face de frappe. La surface extérieure de l'élément de chant, c'est-à-dire la zone la plus éloignée du centre de la raquette forme le pourtour de la raquette, lorsque celle-ci est regardée perpendiculairement à la surface de frappe. Cet élément de chant est recouvert par les couches qui s'étendent depuis la surface de frappe, jusqu'à la face extérieure de l'élément de chant, en venant tangenter ce dernier, de sorte que la tranche de ces couches est apparente au niveau de la face visible de l'élément de chant.In other words, the vocal element forms a protruding zone laterally with respect to the striking face. The outer surface of the edge element, that is to say the area farthest from the center of the racket forms the perimeter of the racket, when it is viewed perpendicular to the striking surface. This singing element is covered by the layers that extend from the striking surface to the outer face of the edge element, coming tangent to it, so that the edge of these layers is apparent at of the visible face of the singing element.
En d'autres termes, la face inférieure de la couche supérieure repose, éventuellement indirectement, sur la face supérieure de l'élément de chant, tandis que symétriquement, la face supérieure de la couche inférieure vient au regard de la face inférieure de l'élément de chant. Les couches supérieure et inférieure viennent affleurer ainsi sur la face extérieure de l'élément de chant. La fabrication de la raquette peut ainsi inclure une étape de finition par arasement du chant et des couches supérieure et inférieures qui apparaissent superposées sur la tranche de la raquette.In other words, the lower face of the upper layer rests, possibly indirectly, on the upper face of the edge element, while symmetrically, the upper face of the lower layer is facing the lower face of the singing element. The upper and lower layers are thus flush with the outer face of the edge element. The manufacture of the racket can thus include a finishing step by leveling the edge and upper and lower layers that appear superimposed on the edge of the racket.
Selon les aspects avantageux mais non obligatoires de l'invention, la raquette selon l'invention peut incorporer une ou plusieurs des caractéristiques suivantes.According to the advantageous but not compulsory aspects of the invention, the racket according to the invention can incorporate one or more of the following characteristics.
L'élément de chant est un élément de renforcement longiligne, autrement dit il a une certaine épaisseur et une certaine largeur et sa longueur est beaucoup plus grande que sa largeur et son épaisseur.The edge element is an elongated reinforcing element, that is to say it has a certain thickness and a certain width and its length is much greater than its width and its thickness.
Cet élément de chant comporte en particulier une face inférieure située du côté de la surface de frappe inférieure et une face supérieure située du côté de la surface de frappe supérieure, la face inférieure étant recouverte par une portion d'extrémité d'au moins une des couches inférieures et la face supérieure étant recouverte par une portion d'extrémité d'au moins une des couches supérieures.This edge element comprises in particular a lower face located on the side of the lower striking surface and an upper face located on the side of the upper striking surface, the lower face being covered by an end portion of at least one of the lower layers and the upper face being covered by an end portion of at least one of the upper layers.
La raquette peut comprendre des portions d'extrémité qui sont formées par l'extrémité de la couche de protection de la surface de frappe de la raquette.The racket may include end portions that are formed by the end of the protective layer of the racket's striking surface.
La raquette peut également comprendre des portions d'extrémité qui sont formées par les extrémités de deux couches superposées dans l'épaisseur de la raquette, l'une des couches étant constituée par une des couches de renfort de la surface de frappe de la raquette et l'autre couche étant constituée par la couche de protection extérieure de la raquette.The racket may also comprise end portions which are formed by the ends of two superposed layers in the thickness of the racket, one of the layers being constituted by one of the reinforcing layers of the striking surface of the racket and the other layer being constituted by the outer protective layer of the racket.
L'élément de chant peut être positionné de telle façon que son plan médian se situe sur le plan de symétrie de la tête de la raquette.The edge element can be positioned in such a way that its median plane lies on the plane of symmetry of the head of the racket.
L'élément de chant peut être constitué de plusieurs éléments superposés dans le sens de l'épaisseur de la raquette, et/ou peut être constitué de plusieurs éléments superposés dans le sens de sa largeur selon la direction x1.The edge element may consist of several elements superimposed in the direction of the thickness of the racket, and / or may consist of several superimposed elements in the direction of its width in the direction x1.
La face interne de l'élément de chant peut être relié au noyau de la raquette par l'intermédiaire d'au moins un élément de renfort, cet élément de renfort peut être un tube creux ou encore un ensemble formé d'un tube et d'une couche de fibres composites et/ou d'une couche métallique.The inner face of the edge element can be connected to the core of the racket by means of at least one reinforcing element, this reinforcing element can be a hollow tube or a combination of a tube and a a layer of composite fibers and / or a metal layer.
L'élément de chant peut être d'épaisseur et/ou de largeur variables mais l'élément de chant peut être d'épaisseur et de largeur constante.The edge element may be of varying thickness and / or width but the edge element may be of constant thickness and width.
L'épaisseur de l'ensemble formé par l'élément de chant et les portions d'extrémité issues des couches inférieures et supérieures est inférieure à l'épaisseur totale de la raquette.The thickness of the assembly formed by the edge element and the end portions from the lower and upper layers is less than the total thickness of the racket.
L'élément de chant est positionné sur le pourtour extérieur de la raquette formant une surface sensiblement perpendiculaire aux surfaces de frappe.The edge element is positioned on the outer periphery of the racket forming a surface substantially perpendicular to the striking surfaces.
La face inférieure de cet élément de chant située au niveau du pourtour extérieur de la raquette est recouverte par une portion d'extrémité d'au moins une des couches inférieures issue d'une des surfaces de frappe et la face supérieure de cet élément de chant est recouverte par une portion d'extrémité d'au moins une des couches supérieures issue de l'autre surface de frappe.The lower face of this edge element located at the outer periphery of the racket is covered by an end portion of at least one of the lower layers from one of the striking surfaces and the upper face of this edge element. is covered by an end portion of at least one of the upper layers from the other striking surface.
Dans certaines configurations particulières, l'élément de chant s'étend sur au moins le pourtour avant de la tête de la raquette. Dans d'autres configurations, l'élément de chant peut s'étendre sur le pourtour avant de la tête de la raquette et se prolonger jusqu'à la partie supérieure du manche de la raquette.In certain particular configurations, the edge element extends over at least the front rim of the racquet head. In other configurations, the edge element may extend around the front edge of the racquet head and extend to the top of the racquet handle.
La raquette peut présenter un évidement au niveau du coeur et l'élément de chant est alors positionné sur les bords de cet évidement formant une surface sensiblement perpendiculaire aux surfaces de frappe de la raquette.The racket may have a recess in the heart and the edge element is then positioned on the edges of this recess forming a surface substantially perpendicular to the striking surfaces of the racket.
Cet élément de chant positionné sur les bords de l'évidement peut border d'une part le noyau dans la partie supérieure de l'évidement et d'autre part les deux branches dans les parties latérales de l'évidement.This edge element positioned on the edges of the recess can border on the one hand the core in the upper part of the recess and on the other hand the two branches in the side portions of the recess.
Dans le cas où la raquette présente un évidement au niveau du coeur, elle peut présenter au moins deux éléments de chant situés sur des surfaces sensiblement perpendiculaires aux surfaces de frappe de la raquette, un élément de chant étant positionné sur les bords de cet évidement et l'autre élément de chant étant positionné sur le pourtour extérieur de la raquette.In the case where the racket has a recess in the heart, it may have at least two edge elements located on surfaces substantially perpendicular to the striking surfaces of the racket, a edge element being positioned on the edges of this recess and the other edge element being positioned on the outer periphery of the racket.
Lors de la fabrication de la raquette et généralement après son moulage, le profil de la face externe de l'élément de chant est obtenu de préférence par usinage, mais d'autres procédés de découpage sont possibles.During the manufacture of the racket and generally after its molding, the profile of the outer face of the edge element is preferably obtained by machining, but other cutting methods are possible.
Le procédé de fabrication d'une raquette selon l'invention peut utiliser un moule de raquette particulier où les éléments constitutifs de la raquette sont positionnés dans un moule comportant trois parties, une partie inférieure formant le fond du moule, une partie intercalaire recevant l'élément de chant et une partie supérieure formant le couvercle du moule.The method of manufacturing a racket according to the invention can use a particular racket mold where the components of the racket are positioned in a mold having three parts, a lower part forming the bottom of the mold, an intermediate part receiving the edge element and an upper part forming the lid of the mold.
L'invention va être décrite ci-après, en référence aux dessins annexés, donnés uniquement à titre d'exemples, non limitatifs, dans lesquels les
Selon la première variante de l'invention,
- La
figure 1 est une vue en perspective d'une raquette de padel, - La
figure 2 est une vue de profil de la raquette, - La
figure 3 est une vue de face de la tête de la raquette, - La
figure 4 est une vue en coupe selon A.A d'une demie section de la tête de la raquette dans le plan x1, z selon un premier mode de réalisation de la raquette, - La
figure 5 est une vue en coupe selon A.A d'une demie section de la tête de la raquette dans le plan x1, z selon un deuxième mode de réalisation de la raquette, - La
figure 6 est une vue en coupe selon A.A d'une demie section de la tête de la raquette dans le plan x1, z selon un troisième mode de réalisation de la raquette, - La
figure 7 est une vue en perspective de l'élément de chant de la raquette, - Les
figures 8 et 9 sont des vues en perspective de deux réalisations différentes de l'élément de chant de la raquette.
- The
figure 1 is a perspective view of a paddle racket, - The
figure 2 is a side view of the racket, - The
figure 3 is a front view of the head of the racket, - The
figure 4 is a sectional view along AA of a half section of the head of the racket in the plane x1, z according to a first embodiment of the racket, - The
figure 5 is a sectional view along AA of a half section of the head of the racket in the plane x1, z according to a second embodiment of the racket, - The
figure 6 is a sectional view along AA of a half section of the head of the racket in the plane x1, z according to a third embodiment of the racket, - The
figure 7 is a perspective view of the singing element of the racket, - The
Figures 8 and 9 are perspective views of two different achievements of the racquet singing element.
Selon la deuxième variante de l'invention,
- La
figure 10 est une vue en perspective de la raquette de padel, - La
figure 11 est une vue de dessus de la raquette, - La
figure 12 est une vue en coupe selon B-B au niveau d'une des branches de la raquette - La
figure 13 est une vue en coupe selon C-C d'une demie section de la tête de la raquette
- The
figure 10 is a perspective view of the paddle racket, - The
figure 11 is a top view of the racket, - The
figure 12 is a sectional view along BB at one of the branches of the racket - The
figure 13 is a sectional view according to CC of a half section of the head of the racket
Selon la troisième variante de l'invention,
- La
figure 14 est une vue en perspective de la raquette de padel, - La
figure 15 est une vue en coupe selon D-D au niveau d'une des branches de la raquette
- The
figure 14 is a perspective view of the paddle racket, - The
figure 15 is a sectional view along DD at one of the branches of the racket
Pour une meilleure compréhension de la description et des figures, on définit le repère orthonormé (O, x, y, z), comme illustré
La première variante de l'invention dans laquelle la raquette comporte un élément de chant au niveau de son pourtour extérieur est illustrée aux
La raquette de padel comprend de manière habituelle une tête 1 ou tamis présentant deux faces 4, 5 orientées parallèlement au plan (x, y) de la raquette, ces deux faces constituant les deux surfaces de frappe de la raquette qui sont destinées à frapper dans la balle. Ces deux surfaces sont opposées l'une à l'autre, l'une des faces étant utilisée lors de l'exécution d'un coup droit et l'autre face étant utilisée lors de l'exécution d'un revers.Padel racket usually comprises a
Nous nommerons la face 4, face supérieure et la face 5, face inférieure de la tête de raquette, la raquette étant posée à plat par terre. Ces deux surfaces de frappe sont reliées l'une à l'autre par des surfaces sensiblement perpendiculaires formant le pourtour 6 extérieur de la raquette.We will name the
Dans le cas d'une raquette à coeur évidé comme illustré sur la
La tête 1 de la raquette est reliée au manche 3 qui est destiné à être pris en main par le joueur. La liaison entre la tête 1 et le manche 3 s'appelle le coeur 2 de la raquette. L'avant de la raquette se situe du côté opposé au manche.The
La tête 1 de la raquette comporte en général des trous 100 qui traversent toute l'épaisseur de la raquette selon la direction z pour alléger la raquette et améliorer son comportement lors du jeu et de la frappe. Dans son épaisseur, le bord latéral de la tête 1 de la raquette et du coeur 2 de la raquette, nommé tranche de la raquette, forme le pourtour 6 de la raquette. Ce pourtour 6 correspond à la surface formée par le profil extérieur 60 de la section S située dans le plan (x1, z) qui décrit une rotation d'un angle α de zéro à 360 degrés autour du centre O de la raquette. Ce pourtour 6 comprend selon l'invention un ensemble de chant 7 comprenant un élément de chant 8 qui est ici apparent et visible sur la tranche de la raquette qui est formée par une surface sensiblement perpendiculaire aux surfaces de frappe ou encore perpendiculaire au plan (x,y). L'ensemble de chant 7 est constitué d'une part de l'élément de chant 8 dans sa partie centrale mais également de deux éléments adjacents positionnés de part et d'autre des faces inférieure 8d et supérieure 8c de l'élément de chant 8. Ces deux éléments adjacents sont constitués dans ce premier mode de réalisation par les portions d'extrémité des couches fines superposées 12a, 13a et 12b, 13b qui seront détaillées par la suite. Cet élément de chant 8 présente une forme de cordon longiligne, de section sensiblement carrée ou rectangulaire. Par ailleurs, d'autres formes de type triangulaire ou ovale, aux côtés arrondis ou droits peuvent également être envisagées pour cet élément de chant 8.The
Dans le premier mode de réalisation, la structure de la tête de la raquette est composée dans sa partie centrale d'un noyau 9 formé par une couche de mousse polymérique généralement thermoplastique, formée par exemple d'une mousse d'Ethylène Vinyle d'acétal ou EVA ou éventuellement de polyuréthane.In the first embodiment, the structure of the head of the racket is composed in its central part of a
Ce noyau 9 léger et déformable forme la couche interne centrale centrée sur le plan médian ou plan de symétrie principal de la raquette qui est parallèle aux plans de frappe et donc parallèle au plan (x,y). Ce noyau 9 est bordé latéralement par un renfort tubulaire 10 destiné à renforcer le pourtour 6 ou la tranche de la raquette. Ce renfort est composé de fibres composites en verre et/ou en Carbone imprégnées de résine. En général ce tube 10 est mis en forme par gonflage lors du moulage de la raquette et la partie intérieure 10a du tube 10 est creuse. Il est également possible de réaliser la structure de la raquette conformément aux enseignements du document
Par ailleurs, les faces inférieure et supérieure du noyau 9 sont recouvertes d'au moins une couche de renfort 11a, 11b, 12a, 12b de préférence en matériaux composites formés d'un ou plusieurs plis de fibres de type fibres de verre ou fibres de Carbone imprégnées d'une résine, du type époxy par exemple, ces fibres pouvant prendre des orientations diverses. Ces couches de renfort 11a, 12a, 11b, 12b sont-elles même recouvertes d'une couche de protection 13a ou 13b.Furthermore, the lower and upper faces of the
Les couches de renfort supérieure 11a et inférieure 11b se prolongent sur les côtés latéraux de la raquette formant les surfaces sensiblement perpendiculaires aux plans de frappe de la raquette. En particulier les couches de renfort se prolongent sur la face externe du tube 10 pour renforcer la structure interne de la tranche de la raquette, les extrémités des couches 11a et 11b se rejoignant sur le plan de symétrie de la raquette parallèle au plan (x, y).The upper and
Ces couches de renfort 11a et 11b ne sont pas visibles sur la tranche 6 de la raquette car elles sont recouvertes par d'autres couches de renfort 12a, 12b, et par les couches de protection 13a, 13b ainsi que par l'élément de chant 8, détaillé ci-dessous.These reinforcing
Les couches 12a et 12b sont des couches de fibres composites à base de verre ou de Carbone imprégnées d'une résine qui sont superposées respectivement aux couches de renfort 11a et 11b recouvrant le noyau pour renforcer les surfaces de frappe de la raquette. Ces couches 12a et 12b renforcent non seulement les surfaces de frappe de la raquette mais aussi la tranche de la raquette étant donné que ces couches 12a, 12b se prolongent au-delà des surfaces de frappe de la raquette sur les côtés latéraux de la raquette. Toutes les couches de renfort 11a, 11b, 12a, 12b, ainsi que le tube 10 contribuent à donner à la raquette les propriétés de rigidité en flexion et en torsion nécessaires pour obtenir le comportement adéquat de la raquette pendant le jeu et la frappe de la balle. Les couches de protection 13a et 13b forment les couches extérieures de la raquette au niveau des faces inférieure et supérieure de la raquette et permettent de protéger la raquette. Ces couches de protection 13a et 13b peuvent porter la décoration en face externe ou interne et peuvent être opaques ou transparentes. Le matériau utilisé pour ces couches de protection est de préférence en polyuréthane ou en Acrylonitrile Butadiène Styrène ou ABS, de faible rigidité qui contribue peu à la rigidité totale de la raquette.The
Les couches de protection 13a et 13b recouvrent les surfaces de frappe de la raquette et se prolongent également sur la tranche 6 de la raquette.The
Ces couches de protection 13a et 13b s'étendent également dans la zone du coeur 2 de la raquette, jusqu'au manche 3.These
D'autre part, le pourtour 6 de la raquette comprend un élément de chant 8 en forme de cordon longiligne, de section sensiblement carrée ou rectangulaire, cet élément de chant étant un élément de renforcement longiligne du pourtour de la raquette. D'autres formes de section de type triangulaire ou ovale, aux côtés arrondis ou droits peuvent également être envisagées pour cet élément de chant 8 sans sortir du cadre de l'invention. Par ailleurs, cet élément de chant 8 longiligne est de forme courbe pour épouser le profil du pourtour 6 de la raquette.On the other hand, the
Cet élément de chant 8 présente des faces caractéristiques qui sont ses faces inférieure 8d et supérieure 8c tournées respectivement vers les faces inférieure 5 et supérieure 4 de la raquette formant les surfaces de frappe, ainsi que sa face interne 8a orientée vers le centre O de la raquette et sa face externe 8d généralement visible de l'extérieur de la raquette.This
Les couches de renfort 12a, 12b et les couches de protection 13a et 13b se prolongent jusqu'aux côtés latéraux extérieurs de la raquette et sont visibles sur la tranche 6 de la raquette de part et d'autre des faces inférieure 8d et supérieure 8c de l'élément de chant 8 de la raquette. Ces couches recouvrent les faces inférieure et supérieure de l'élément de chant 8 en étant solidarisées par collage et elles permettent de protéger ces faces de l'élément de chant.The reinforcing
Dans ce premier mode de réalisation, les faces supérieure 8c et inférieure 8d de cet élément de chant 8 sont recouvertes chacune par deux couches.In this first embodiment, the upper 8c and lower 8d faces of this
Plus précisément, la portion d'extrémité de la couche supérieure de renfort 12a recouvre et vient au contact de la face supérieure 8c de l'élément de chant 8, tandis que la portion d'extrémité de la couche inférieure de renfort 12b recouvre et vient au contact de la face inférieure 8d de l'élément de chant 8. On entendra par portions d'extrémités les extrémités des couches de renfort ou de protection qui peuvent mesurer de 0 à 2 ou 3 mm du bord extrême de ces couches. Ces portions d'extrémité de ces couches 12a, 12b correspondent à la portion des couches 12a et 12b qui sont solidarisées aux faces inférieure et supérieure de l'élément de chant 8 par collage. Ces portions d'extrémité collées à l'élément de chant 8 s'étendent depuis le bord extrême des couches 12a et 12b en direction du centre de la raquette sur quelques millimètres, pouvant atteindre 5 à 6mm environ, mais de préférence sur une distance comprise entre 1 et 2mm. De préférence, ce collage est effectué pendant le moulage de la raquette et la colle est alors constituée par la résine d'imprégnation des fibres composites formant les différentes couches composites de la raquette. Cette zone extérieure constituée de l'élément de chant 8 d'épaisseur e8 et des portions d'extrémité supérieure, d'épaisseur e1 et inférieure d'épaisseur e2 forme une zone étanche assurée par la colle utilisée. Ainsi la structure interne de la raquette est protégée de l'humidité extérieure.More specifically, the end portion of the upper reinforcing
Par ailleurs, la portion d'extrémité de la couche supérieure de protection 13a recouvre indirectement la face supérieure 8c de l'élément de chant 8, cette portion d'extrémité venant au contact de la portion d'extrémité de la couche de renfort supérieure 12a, tandis que la portion d'extrémité de la couche inférieure de protection 13b recouvre indirectement la face inférieure 8d de l'élément de chant 8, cette portion d'extrémité venant au contact de la portion d'extrémité de la couche de renfort inférieure 12b.Moreover, the end portion of the upper
Les portions d'extrémité des couches 12a, 12b, 13a, 13b présentent un rayon de courbure dont le centre de courbure est situé vers l'extérieur de la raquette de padel, du côté de la face supérieure de la raquette pour les portions d'extrémité supérieures et du côté de la face inférieure de la raquette pour les portions d'extrémité inférieures. Ce rayon de courbure peut être modifié en fonction de la forme du moule de la raquette. En particulier ce rayon de courbure pourrait tendre vers un angle droit.The end portions of the
Par ailleurs, la face interne 8a de cet élément de chant 8 est liée par collage aux faces externes des couches de renfort 11a et 11b et cette face interne 8a épouse sensiblement la forme des faces externes des couches de renforts 11a et 11b dans la zone de jonction de ces deux renforts. La face externe 8b de cet élément de chant débouche sur le côté extérieur du pourtour 6 de la raquette, cette face 8b étant donc généralement visible de l'extérieur de la raquette.Moreover, the
Autrement dit, l'élément de chant 8 est solidarisé à la structure par trois de ses faces, c'est-à-dire par ses faces interne, inférieure et supérieure.In other words, the
L'élément de chant 8 peut être réalisé en différents matériaux flexibles pour pouvoir être conformé lors de la mise en moule à la forme ovale de la tête de la raquette et suivre le pourtour 6 de la raquette. Ces matériaux peuvent être par exemple des plastiques, des plastiques chargés de fibres, des polymères, des caoutchoucs naturels ou synthétiques, de fines couches de matériau métallique, voir des couches de fibres composites. Le choix du matériau permet d'ajuster la rigidité de la tête de raquette et voire de lui donner des propriétés amortissantes.The
Le matériau de l'élément de chant 8 est choisi également de telle façon qu'il résiste à l'usure, aux frottements et aux chocs, pour protéger la raquette au niveau de la tranche 6 qui subit de nombreux coups et impacts lors de son utilisation pendant le jeu.The material of the
L'élément de chant 8 peut être constitué d'un seul matériau dans son épaisseur e8 et dans sa largeur 18. Mais cet élément de chant 8 pourra également être composé de plusieurs matériaux superposés dans son épaisseur e8 mesurée selon la direction z dans le sens de l'épaisseur de la raquette ou même dans sa largeur 18 mesurée suivant la direction x1. Dans le cas de la superposition dans la largeur de l'élément de chant 8, les différents matériaux se succèdent alors depuis le côté interne 8a de l'élément de chant 8 vers le côté externe 8b de l'élément de chant 8. Dans le cas de la superposition de matériaux dans l'épaisseur de l'élément de chant 8, différentes couches de matériaux sont empilées les unes sur les autres depuis la face inférieure 8d de l'élément de chant 8 vers la face supérieure 8c de l'élément de chant 8. Ces superpositions de matériaux, aussi bien dans l'épaisseur que dans la largeur permettent d'optimiser les caractéristiques de rigidité et d'amortissement de la tranche de la raquette.The
Ces différents matériaux pourraient être de la même couleur ou de couleurs différentes pour obtenir des esthétismes variés.These different materials could be the same color or different colors to obtain different aesthetics.
Cet élément de chant 8 peut également être constitué de plusieurs éléments juxtaposés selon la direction longitudinale de l'élément de chant 8 c'est-à-dire selon sa longueur, qui peuvent être choisis de couleurs différentes et/ou en matériaux différents. Par ailleurs cet élément de chant est généralement d'épaisseur e8 et de largeur 18 constantes sur toute sa longueur comme illustré à la
Une autre réalisation concernant l'élément de chant 8 est illustrée à la
Aussi il ressort de l'invention que les paramètres de longueur, d'épaisseur e8, de largeur 18, et les matériaux utilisés pour cet élément de chant 8 permettent d'optimiser le comportement final de la raquette de padel que l'on souhaite obtenir lors du jeu et de la frappe de la balle.Also, it is apparent from the invention that the parameters of length, thickness e8,
De façon la plus courante, la face latérale formant le pourtour 6 de la raquette comprend un élément de chant 8 dont son plan médian est positionné sur le plan de symétrie de la raquette parallèle au plan (x, y). L'épaisseur e8 de cet élément de chant 8 est inférieure à l'épaisseur totale E de la tête de la raquette. Par exemple, on obtient de bons résultats pour une raquette dont l'élément de chant 8 a une épaisseur inférieure à la moitié de l'épaisseur totale E de la raquette, voire de préférence inférieure à un quart de l'épaisseur totale E de la raquette. Par exemple, pour une raquette d'une épaisseur totale E de 38mm, un élément de chant 8 d'épaisseur e8 compris entre 3mm et 4.5mm donne un bon comportement. Plus précisément, l'épaisseur formée par l'ensemble de chant constitué par la somme de l'épaisseur e8 de l'élément de chant 8 et des épaisseurs el et e2 des portions d'extrémités des couches inférieures et supérieures recouvrant cet élément de chant 8 en partie inférieur et supérieure est inférieure ou égale à l'épaisseur totale E de la tête de la raquette. Dans une autre variante non représentée, le plan médian de l'élément de chant 8 pourrait être décalé d'une certaine distance selon la direction z, du plan de symétrie de la raquette, ceci pour obtenir un comportement asymétrique de la raquette lors de la frappe en coup droit et en revers.Most commonly, the side face forming the
La structure de la raquette et en particulier les couches de renfort peuvent être modifiées par rapport au premier mode de réalisation tout en restant dans le cadre de l'invention.The structure of the racket and in particular the reinforcing layers may be modified with respect to the first embodiment while remaining within the scope of the invention.
Par exemple dans le deuxième mode de réalisation illustrée à la
Dans le troisième mode de réalisation de la raquette illustré la
Au niveau du procédé de fabrication de la raquette, tous les constituants de la raquette, à savoir les couches de protection 13a, 13b, les renforts 11a, 11b, 12a, 12b préalablement imprégnés de résine, le noyau 9, le tube de renfort 10 muni d'une gaine intérieure de gonflage, l'élément de chant 8, sont positionnés dans un moule. Le moule est spécifiquement adapté pour le positionnement de l'élément de chant 8. En effet, les éléments constitutifs de la raquette sont positionnés dans un moule comportant trois parties, une partie inférieure formant le fond du moule, une partie intercalaire recevant l'élément de chant et une partie supérieure formant le couvercle du moule. La partie intercalaire permet d'espacer les parties inférieures et supérieures du moule. Elle peut être facilement changer pour passer d'un modèle de raquette à un autre modèle et permet de s'adapter à des éléments de chant 8 différents en épaisseur, en largeur et même en longueur.At the level of the manufacturing process of the racket, all the components of the racket, namely the
Cet élément intercalaire ou troisième partie du moule est de préférence constitué de deux éléments juxtaposés pour faciliter le démoulage de la raquette. Ces deux éléments juxtaposés permettent de recevoir respectivement la partie gauche de l'élément de chant 8 formant la partie gauche de la raquette et la partie droite de l'élément de chant 8 formant la partie droite de la raquette, l'élément de chant étant lui de préférence en un seul morceau. Chacun de ces deux éléments de moule gauche et droit, s'étendent de la tête 1 de la raquette jusqu'à l'extrémité du manche 3. Ces deux éléments de moule présentent également chacun un alésage qui permet aux couches de renfort 12a, 12b, et aux couches de protection 13a, 13b d'être positionnées au-dessus et au-dessous de l'élément de chant 8 en dépassant de la face externe 8b de l'élément de chant. Par ailleurs, cette troisième partie ou partie intercalaire peut être composée d'un seul élément, voire de plus de deux éléments si nécessaire.This intermediate element or third part of the mold is preferably made of two elements juxtaposed to facilitate the demolding of the racket. These two juxtaposed elements make it possible respectively to receive the left part of the
Aussi, après le positionnement de tous les éléments constitutifs de la raquette dans le moule, et après fermeture du moule, une phase de gonflage permet de gonfler le tube creux et de le plaquer contre le noyau d'une part et les parois du moule d'autre part. Puis la phase de moulage est réalisée par l'application des conditions de température et de pression particulières et connues, ceci permettant la polymérisation de la résine pour obtenir une raquette semi-finie à la sortie du moulage. Après cette phase de moulage, quelques étapes de finition sont nécessaires.Also, after the positioning of all the components of the racket in the mold, and after closing the mold, an inflation phase can inflate the hollow tube and press against the core on the one hand and the walls of the mold. 'somewhere else. Then the molding phase is performed by applying the particular and known temperature and pressure conditions, this allowing the polymerization of the resin to obtain a semi-finished racket at the exit of the molding. After this molding phase, some finishing steps are necessary.
Tout d'abord, il est nécessaire de terminer proprement la surface formant la tranche 6 de la raquette. En effet, sur le pourtour 6 de la raquette, l'élément de chant 8 ainsi que les portions d'extrémité des couches de renfort 12a,12b et les portions d'extrémité des couches de protection 13a,13b collées sur les faces supérieure 8c et inférieure 8d de l'élément de chant 8 dépassent en excès et des surplus de résine d'imprégnation ont flués par les zones de liaison entre ces différentes couches pendant le moulage. Aussi, cet excès de matière et ces bavures doivent être supprimés par un procédé de découpe approprié. De préférence, un usinage est effectué sur la tranche 6 de la raquette, ceci dans le but d'obtenir la face B de la raquette qui comprend la face externe 8b de l'élément de chant 8 et les portions d'extrémités des couches 13a, 13b, 12a, 12b. L'usinage permet d'obtenir une découpe nette, rapidement et de façon reproductible d'une raquette à l'autre. Ceci est très avantageux par rapport aux opérations de ponçage longues et délicates qui sont souvent nécessaires dans cette zone où habituellement, les extrémités des couches 13a, 13b, 12a, 12b viennent se joindre bout à bout. Cet usinage peut être effectué par tout procédé classique d'usinage, ou par usinage filaire, ou encore par découpe laser par exemple. Par ailleurs, d'autres procédés de découpe connus de l'art antérieur, comme par exemple, le poinçonnage ou l'emboutissage pourraient également être utilisés. La face externe 8b de l'élément de chant 8 ainsi obtenue sur la raquette finie ne nécessite donc pas l'application d'un ruban supplémentaire dont le positionnement n'est pas facile en reprise après le moulage et qui est souvent fragile. Cet usinage permet de découper l'élément de chant 8 muni sur ces faces inférieure et supérieure des portions d'extrémités d'une ou des couches inférieure et supérieure soit de préférence avec un angle de 90 degré par rapport aux plans formés par les surfaces de frappe, ou encore avec un angle incliné par rapport aux surfaces de frappe.First, it is necessary to cleanly finish the surface forming the
Pour finir totalement la fabrication de la raquette, des phases de décoration et/ou de vernissage peuvent être éventuellement nécessaires.To finish completely the manufacture of the racket, phases of decoration and / or varnishing may be necessary.
La deuxième variante de l'invention dans laquelle la raquette comporte un élément de chant uniquement au niveau du bord de l'évidement central dans la zone du coeur de la raquette est illustré aux
Dans la zone du coeur 2 de la raquette, la raquette présente un évidement 15 bordé latéralement par deux branches 14a et 14b. Ces deux branches 14a, 14b relient les zones de frappe 4, 5 de la raquette au manche 3 de la raquette.In the zone of the
La surface intérieure de la branche 14a forme une des surfaces latérales 15a de l'évidement 15, tandis que la surface intérieure de l'autre branche 14b forme l'autre surface latérale 15b de l'évidement 15. Ces surfaces 15a et 15b se rejoignent au niveau de la partie supérieure du manche 3. La partie supérieure de l'évidement est formée par la surface interne 15c positionnée dans la partie inférieure des surfaces de frappe 4, 5 en dessous du noyau 9.The inner surface of the
Ainsi le pourtour de l'évidement 15 est formé par les surfaces 15a, 15b et 15c qui constituent des surfaces sensiblement perpendiculaires aux surfaces de frappe 4 et 5.Thus the periphery of the
Cet évidement 15 est de forme sensiblement triangulaire mais d'autres formes du type hexagonales, rondes ou ovales pourraient également convenir.This
Selon la deuxième variante de l'invention, les bords de l'évidement 15 formé par les surfaces 15a, 15b, 15c orientées sensiblement perpendiculairement aux surfaces de frappe 4,5 de la raquette, autrement dit sensiblement perpendiculairement au plan (x,y), comportent un élément de chant 80, en forme de cordon longiligne incurvé épousant la forme des contours de l'évidement 15. Cet élément de chant 80 est tout à fait comparable à l'élément de chant 8 décrit précédemment. Les caractéristiques mécaniques et physiques utilisées pour l'élément de chant 80 sont donc similaires à celles décrites pour l'élément de chant 8.According to the second variant of the invention, the edges of the
Cet élément de chant 80 apparait en coupe sur la
Les côtés inférieur 80d et supérieur 80c de l'élément de chant 80 sont recouverts respectivement par les extrémités des couches de renfort 12a, 12b ou les portions d'extrémités de ces couches, ces couches de renfort 12a, 12b étant elles-mêmes recouvertes par les extrémités des couches de protection 13a, 13b. Les côtés supérieur 80c et inférieur 80d sont donc protégés par des couches de renfort. Ainsi, les trois côtés 80a, 80c, 80d de l'élément de chant 80 sont solidarisés par collage à la structure de la raquette, ceci lors du moulage.The lower 80d and upper 80c sides of the
Aussi, la surface formée par le côté externe 80b du chant 80 et par les extrémités des couches de renfort 12a, 12b et de protection 13a, 13b forme une surface orientée sensiblement perpendiculairement aux surfaces de frappe 4,5. Cette surface est de préférence plane et obtenue par découpe comme par exemple par usinage après le moulage de la raquette, mais d'autres formes plus arrondies ou anguleuses pourraient être également envisagées.Also, the surface formed by the
Au niveau du bord de la partie supérieure 15c de l'évidement, l'élément de chant 80 s'appuie contre la face transversale du noyau 9 directement ou indirectement par l'intermédiaire de fibres de renfort. Cet élément de chant 80 peut ne pas faire le tour complet du bord de l'évidement 15, mais dans d'autres réalisations, il pourrait être localisé uniquement sur une portion d'un des bords, ou il pourrait être recouvrir au moins l'un des bords de l'évidement 15.At the edge of the
Dans un mode préférentiel, le plan médian de l'élément de chant 80 est situé sur le plan de symétrie principal de la raquette qui est parallèle au plan (x,y).In a preferred embodiment, the median plane of the
Ainsi, l'élément de chant 80 permet d'une part de rigidifier partiellement ou totalement les bords de l'évidement 15, et d'autre part, d'assurer un bon collage entre les couches inférieure et supérieure et d'obtenir des bords de l'évidement 15 propres et esthétiques sur la raquette finie.Thus, the
Dans la deuxième variante selon l'invention, la raquette ne présente pas d'élément de chant 8 au niveau de son pourtour extérieur 6.In the second variant according to the invention, the racket has no
Aussi, au niveau du pourtour 6, les couches de renfort 12a et 12b ainsi que les couches de protection 13a et 13b viennent se rejoindre bout à bout sur la ligne de liaison L, comme illustré sur les
La troisième variante de l'invention dans laquelle la raquette comporte non seulement un élément de chant au niveau de son pourtour extérieur mais aussi un élément de chant au niveau du bord de l'évidement central dans la zone du coeur de la raquette, est illustré aux
Aussi selon cette troisième variante, la raquette présente au niveau des surfaces orientées sensiblement perpendiculairement aux surfaces de frappe 4,5, non seulement un élément de chant 8 sur le pourtour extérieur 6 de la raquette, mais aussi un élément de chant 80 sur les bords de l'évidement 15.Also according to this third variant, the racket has at the level of the surfaces oriented substantially perpendicular to the
L'élément de chant 8 présente les mêmes caractéristiques que celles décrites dans la première variante, tandis que l'élément de chant 80 présente les mêmes caractéristiques que celles décrites dans la deuxième variante.The
Finalement l'invention présente les avantages suivant :
- Proposer une raquette de padel dont la structure sur les faces sensiblement perpendiculaires aux surfaces de frappe peut être renforcée par un élément de chant ou un élément de renforcement mis au moulage et collé pendant le moulage avec les couches de renfort et/ou de protection de la raquette.
- Proposer différentes structures de raquette comportant un élément de chant soit sur le pourtour extérieur de la raquette, soit sur les bords de l'évidement central, soit deux éléments de chant situés dans ces deux zones.
- Permettre de nombreuses variantes de rigidité et d'esthétique des faces latérales ou perpendiculaires aux surfaces de frappe de la raquette en choisissant de façon adéquate les formes et les matériaux de ou des éléments de chant.
- Proposer une raquette étanche et résistante.
- Proposer un procédé de fabrication simple par l'utilisation d'un moule adapté au niveau de l'élément de chant.
- Simplifier les étapes de finition de la raquette à la sortie du moulage pour obtenir une raquette totalement finie, esthétique et solide.
- To propose a padel racket whose structure on the faces substantially perpendicular to the striking surfaces may be reinforced by a edge element or a reinforcement element molded and glued during the molding with the reinforcing and / or protective layers of the paddle. racket.
- To propose different racket structures comprising a singing element either on the outer periphery of the racket, or on the edges of the central recess, or two edge elements located in these two zones.
- Allow many variations of rigidity and aesthetics of the side faces or perpendicular to the striking surfaces of the racket by appropriately choosing shapes and materials of or edge elements.
- Offer a waterproof and resistant racket.
- Propose a simple manufacturing process by using a suitable mold at the level of the edge element.
- Simplify the finishing steps of the racket at the exit of the molding to obtain a completely finished racket, aesthetic and solid.
Claims (18)
- A racket for playing padel game comprising a core (9) covered on its lower face by at least one lower layer (11b, 12b, 13b, 110b) and on its upper face by at least one upper layer (11a, 12a , 13a, 110a) forming the two opposite striking surfaces of the racket: lower (5) and upper (4), the two striking surfaces being connected to each other by substantially perpendicular surfaces forming the rim and/or throat of the racquet, the said substantially perpendicular surfaces substantially perpendicular to the striking surfaces compromising at least one edge element (8, 80), characterized in that the underside of the upper layer rests on the upper face (8c) of the edge element and in that the upper face of the lower layer faces the lower face (8d) of the edge element.
- The racket according to claim 1, characterized in that all or part of the upper (12a, 13a) and lower (12b, 13b) layers extend laterally to cover the substantially perpendicular surfaces and said edge member (8, 80), said upper and lower layers having their outer contour located at the outer face (8b) of said edge member (8).
- The racket according to one of the preceding claims, characterized in that this edge element (8, 80) is a longilineal reinforcing element.
- The racket according to one of the preceding claims, characterized in that the end portions of the lower and upper layers are formed by the end of the protective layer (13a, 13b) of the striking surface of the racket bonded directly to the edge element (8, 80).
- The racket according to claims 1 to 3, characterized in that the end portions of the lower and upper layers are formed by the ends of two layers superposed in the thickness of the racket, one of the layers being constituted by one of the reinforcing layers (12a, 12b) of the striking surface of the racket and the other layer being constituted by the outer protective layer (13a, 13b) of the racket, the ends of the reinforcing layers being bonded directly to the edge element (8, 80).
- The racket according to one of the preceding claims, characterized in that the edge element (8, 80) consists of a plurality of elements superimposed in the direction of the thickness E of the racket and / or in the width direction thereof (ℓ8) in the direction x1.
- The racket according to one of the preceding claims, characterized in that the internal face (8a, 80a) of the edge element (8, 80) is connected to the core (9) of the racket by means of at least one reinforcing member (10, 11a, 11b).
- The racket according to the preceding claim, characterized in that the reinforcing element which borders the core (9) and which extends into the handle (3) of the racket is a hollow tube (10).
- The racket according to one of the preceding claims, characterized in that the reinforcing element adhered to the inner face of the edge element (8, 80) is an assembly formed by a tube (10) and a layer (11a, 11b) of composite fibers and/or of metal.
- The racket according to one of the preceding claims, characterized in that the edge element (8, 80) is of variable thickness (e8) and/or variable width (ℓ8).
- The racket according to one of the preceding claims, characterized in that the edge element (8, 80) is of constant thickness (e8) and width (ℓ8).
- The racket according to one of the preceding claims, characterized in that the thickness of the assembly formed by the edge element (8, 80) and the end portions of the lower (12b, 13b) and upper layers (12a, 13a) is smaller than the total thickness (E) of the racket.
- The racket according to one of the preceding claims, characterized in that the edge element (8) is positioned on the racket outer rim (6) forming a surface substantially perpendicular to the striking surfaces.
- The racket according to the preceding claim, characterized in that the edge element (8) extends over at least the front rim (6) of the head (1) of the racket.
- The racket according to one of the preceding claims, characterized in that the racket has a recess (15) at the throat and in that the edge element (80) is positioned on the edges (15a, 15b, 15c) of the recess forming a surface substantially perpendicular to the striking surfaces (4,5) of the racket.
- The racket according to the preceding claim, characterized in that the edge element, on the one hand, borders the core (9) in the upper part (15c) of the opening (15) and, on the other hand, the two segments (14a, 14b) in the side portions (15a, 15b) of the recess (15).
- The racket according to one of the preceding claims, characterized in that the racket has a recess (15) at the throat and at least two edge elements (8, 80) located on surfaces substantially perpendicular to the striking surfaces of the racket, one edge element (80) being positioned on the edges of this recess (15) and the other edge element (8) being positioned on the outer rim (6) of the racket.
- A method for manufacturing a racket according to one of the preceding claims, characterized in that the elements constituting the racket are positioned in a mold comprising three parts, a lower part forming the bottom of the mold, an intermediate part receiving the edge element (8, 80) and an upper part forming the lid of the mold.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1659546A FR3056918A1 (en) | 2016-10-04 | 2016-10-04 | RACKET, ESPECIALLY PADEL RACKET STRUCTURE |
FR1751138A FR3056919B1 (en) | 2016-10-04 | 2017-02-11 | RACKET, IN PARTICULAR PADEL RACKET STRUCTURE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3305378A1 EP3305378A1 (en) | 2018-04-11 |
EP3305378B1 true EP3305378B1 (en) | 2019-03-13 |
Family
ID=59955509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17194468.9A Active EP3305378B1 (en) | 2016-10-04 | 2017-10-02 | Racquet, in particular structure of padel racquet |
Country Status (1)
Country | Link |
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EP (1) | EP3305378B1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3117881B1 (en) | 2020-12-21 | 2023-04-07 | Babolat Vs | padel racket |
CA3239671A1 (en) * | 2021-12-16 | 2023-06-22 | Selkirk Sport, LLC | Open throat paddle |
USD1016196S1 (en) | 2021-12-16 | 2024-02-27 | Selkirk Sport, LLC | Sports equipment |
SK500132022A3 (en) | 2022-03-09 | 2023-09-27 | Casa de Padel j. s. a. | Padel racquet with an improved hitting area |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2506310Y (en) | 2001-10-10 | 2002-08-21 | 林书伟 | Racket with protective edge |
GB2445351A (en) | 2007-01-05 | 2008-07-09 | Dunlop Slazenger Group Ltd | Paddle racket having reduced air resistance |
WO2012089931A1 (en) | 2010-12-28 | 2012-07-05 | Decathlon | Ball game device |
ES2395181B1 (en) | 2011-08-11 | 2013-12-11 | Pedro Dominguez Escudero | PROCEDURE FOR MANUFACTURING PADEL SHOES AND PRODUCT OBTAINED |
US10864418B2 (en) | 2013-07-19 | 2020-12-15 | Wilson Sporting Goods Co. | Sports paddle with improved head portion |
FR3026016B1 (en) * | 2014-09-23 | 2018-03-16 | Decathlon Sa | RACKET FOR BALL SETS AND CORRESPONDING METHOD |
FR3042124B1 (en) | 2015-10-07 | 2018-04-06 | Skis Rossignol | RACKET, ESPECIALLY PADEL RACKET STRUCTURE |
-
2017
- 2017-10-02 EP EP17194468.9A patent/EP3305378B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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EP3305378A1 (en) | 2018-04-11 |
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