• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Flap for the breaststroke swimming training, which allows perfecting the technique, as well as improving the swimmer's performance. The fin is formed by a shoehorn, which adapts perfectly to the swimmer's foot, and two blades, first and second, which, being perpendicular to the surface of the water when the fin of the invention is used in the water, achieves momentum Optimum in the kick cycle of this swimming style. To achieve a perfect coupling of the blades to the footwear, female guides with a dovetail-shaped section and stops are used to prevent the blade from disassembling during swimming. Said coupling allows the user to disassemble the product being able to walk when it is not available for use. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2735314A1
    申请号:ES201930467
    申请日:2019-05-28
    公开日:2019-12-17
    发明作者:Roman Fernando Navarrete；Diaz María Del Mar Recio；Bobo Pedro Armisen
    申请人:Universidad Politecnica de Madrid；
    IPC主号:
    专利说明:

    [0001]
    [0002] Swim fin for breaststroke swimming training.
    [0003]
    [0004] TECHNICAL SECTOR
    [0005]
    [0006] The invention is in the design, manufacturing and development of products for swimming pool training. It is a fin designed to improve the swimming technique, more specifically in the breaststroke style, and increase the swimmer's performance.
    [0007]
    [0008] BACKGROUND OF THE INVENTION
    [0009]
    [0010] It is understood, as swimming fins, the instruments that fit on the feet in order to propel themselves more during the swimming cycle. Its name is because each fin is shaped like a fish fin.
    [0011]
    [0012] In the field of swimming in the pool, these instruments are used to improve the swimming technique, so that they help the swimmer to adopt the ideal posture for each style.
    [0013]
    [0014] The origin of the swimming fins dates back to the beginning of the Modern Age, when Leonardo Da Vinci realized the interest in the immersion that humanity was developing and designed, among other instruments for swimming, the first fins.
    [0015]
    [0016] The swimming fins, which we know today, were invented by the Frenchman Louis de Corlieu, captain of the French National Navy, in 1914. He demonstrated his invention in front of some Navy officers and in 1939 he was able to begin the Mass production of his product that, until that moment, he had been developing in his Paris apartment.
    [0017]
    [0018] That same year, the American Owen P. Churchill, bought the Corlieu license and began manufacturing them in the United States to the point that, in 1940, they were used by the United States Navy in historical events such as the Normandy landings in 1944
    [0019] On the other hand, underwater activities were booming, therefore, in 1958 the World Underwater Activities Confederation was created in which several finned activities are included, including swimming. These activities were developed and improved, thus awakening the interest among the population so that, in 1967, the first European fin swimming championship was held. That same year, the former Soviet Union, developed the concept of mono-fin, which consisted of an aluminum blade and a rubber shoe where the two feet were placed together.
    [0020]
    [0021] At present, the modifications with respect to the fins have not been very large. The most important modification is related to the material, since polymeric materials, carbon fibers and glass fibers began to be introduced. By way of example and not limitation, by way of example, the following invention patents for fins intended for swimming in the braza style are indicated:
    [0022]
    [0023] - US4521220: Swim fin for breaststroke swimmers
    [0024] - US2003148855: Apparatus and method for developing a suitable swimming whip kick and training in the competitive breaststroke style
    [0025] - KR20120017727: Swimming fin for breaststroke
    [0026]
    [0027] The fins, which have been developing during all these years, share a common base geometry because the movement of the lower train in the styles of crol, back and butterfly is similar and, therefore, this geometry is ideal for them. The difference is found in the breaststroke style, in which the movement is much more exaggerated and the impulse is done differently. It is at this point that the present invention is inscribed.
    [0028]
    [0029] DESCRIPTION OF THE INVENTION
    [0030]
    [0031] The object of the present invention is the design of a fin suitable for swimming pool training, more specifically the breaststroke style. For this, a change in the geometry with respect to conventional fins is proposed so that a greater impulse is achieved during the kick of this style.
    [0032] The use of swimming fins provides great benefits for the swimmer as set out below; where each of the fins fits on each of the feet of the swimmer or user.
    [0033]
    [0034] First, it helps improve and improve the swimming technique, as it helps the swimmer to adopt the correct posture in the kick cycle, thus avoiding muscle injuries.
    [0035]
    [0036] On the other hand, the swimming fins for the breaststroke style currently developed use short blades, so that the momentum is achieved without losing cycle rate.
    [0037]
    [0038] Finally, the use of swimming fins helps tone the muscles, therefore, when practicing swimming without fins, an improvement in both performance and endurance will be noticed.
    [0039]
    [0040] Currently existing models of swimming fins for the breaststroke style provide these benefits, but a number of aspects that can be included in the design have been detected to improve it in terms of ergonomics and functionality, which are described below.
    [0041]
    [0042] The fin for the breaststroke swimming training comprises a wrapping structure formed by a footwear that includes a cut and a floor that delimit a hole configured to fit inside a user's foot.
    [0043]
    [0044] The fin of the invention further comprises a first blade and a second blade which are arranged in opposition and centered in longitudinal planes along parts of the cut and the floor; where the first blade is configured to be anchored to the cut by a first tongue and groove coupling; and where the second blade is configured to anchor to the floor through a second tongue and groove coupling.
    [0045]
    [0046] The tongue and groove couplings comprise female guides and male elements in the shape of a dovetail; where the female guides are located in the cut and the floor of the footwear, while the male elements are located in the first blade and on the second blade; and where the male elements are immobilized along the female guides by means of retention devices.
    [0047]
    [0048] The retention devices comprise:
    [0049] - Layered tabs located at rear ends of the first blade and the second blade.
    [0050] - Front extensions located at the front ends of the first blade and the second blade; where the front and rear ends of the first blade and second blade are located in opposite areas of both blades.
    [0051] - A few first stops and a few second stops located in the footwear, on which the angled eyelashes and the front extensions of both blades contact and anchor.
    [0052]
    [0053] The female guide of the cut of the footwear has a length that goes from a corresponding front area with the toes of the user to an area that corresponds to the metatarsals of said foot of the user when it is housed within the hole of the footwear.
    [0054]
    [0055] The cut of the shoe includes two opposite sides that have two facing openings that are configured to circulate water during the use of the fin.
    [0056]
    [0057] The footwear floor includes a centered hole carved in the sole of said floor; wherein said centered hole is configured to accommodate the angled flange of the second blade.
    [0058]
    [0059] The first blade and the second blade comprise:
    [0060] - Ribs located at edges opposite to the edges where the male elements of said blades are located.
    [0061] - Some surfaces with decreasing cross sections from the area where the male elements are located to the opposite area where the ribs are located; where this configuration of the blade provides rigidity in the area closest to the footwear and greater elasticity in the area furthest from said footwear.
    [0062] It should be noted that conventional fins have a blade that is held substantially in a plane parallel to the surface of the water during the swimming of a user that fits the fin of the invention, so that the impulse during the user's kick cycle in the breaststroke style it is not ideal, since the surface of the fin does not cover enough water surface. In the present invention it is contemplated that the blades are perpendicular to the surface of the water thus achieving a much greater impulse. In addition, this new geometry avoids interference between the pair of fins that the user wears on both feet when the legs are fully stretched during the kick cycle.
    [0063]
    [0064] Said blade, in conventional fins, has a growing surface, so that the swimmer's ankle suffers too much effort that could cause muscle injuries. In this new design, a blade with a decreasing surface is proposed, so that we avoid these efforts and also help improve the hydrodynamics of swimming.
    [0065]
    [0066] On the other hand, the design of an interrupted female guide at the level of the metatarsals of the foot allows the blades to be disassembled so that the possibility of walking without problems is offered, as well as facilitating the transport of the product.
    [0067]
    [0068] The use of said female guides for the blades makes it necessary to design a particular floor with its sole, therefore, a non-adjustable footwear is proposed that adapts perfectly to the shape of the foot of the user or swimmer solving the problem of sizes with different sizes of said footwear.
    [0069]
    [0070] Finally, for the blades, a different type of polymeric material than conventional fins is proposed. These fins work with elastomeric materials, since they have an extraordinary recovery capacity, but, these materials suffer when they are exposed to the chemicals that are used for pool maintenance, such as chlorine. Therefore, a copolymer is proposed as the base material for the blades, so that the plastic polymer gives them resistance to the chemicals mentioned, and the certain amount of ethylene, which is added in these copolymers, provides the elastomeric properties. That plastic doesn't have. To improve the mechanical strength of the plastic polymer, a certain amount of fiberglass is added.
    [0071] BRIEF DESCRIPTION OF THE DRAWINGS
    [0072]
    [0073] To complete the description of this invention and help to better understand its characteristics, a series of drawings are presented that represent the following:
    [0074]
    [0075] Figure 1. Shows a perspective view of the fin for breaststroke swimming training, object of the invention. It basically comprises a shoehorn, a first blade and a second blade.
    [0076] Figure 2. Side view of the second blade.
    [0077] Figure 2a.- Shows a sectional view according to section A-A of Figure 2.
    [0078] Figure 3. Side view of the first blade.
    [0079] Figure 3a.- Shows a sectional view according to section B-B of Figure 3.
    [0080] Figure 4. Perspective view of the footwear.
    [0081] Figure 5. Perspective view of the sole.
    [0082] Figure 6. Perspective view of the coupling of the second blade on a floor that is part of the footwear.
    [0083] Figure 7. Perspective view of the coupling of the first blade on a cut that forms part of the footwear.
    [0084]
    [0085] DESCRIPTION OF A PREFERRED EMBODIMENT
    [0086]
    [0087] Each of the swimming fins, suitable for the breaststroke style, object of the present invention, each consists of a non-adjustable shoe (1), preferably made of polymeric material guaranteeing its adaptability to the shape of a foot of a user or swimmer; where said footwear (1) comprises in principle a floor (10) and a cut (10 ’). Two opposite sides of the cut (10 ’) of the foot pocket (1) have two openings (12) facing each other with the aim of circulating water between them.
    [0088]
    [0089] The shoe (1) has two female guides (8, 9) with a dove-shaped section to insert, respectively a first blade (2) and a second blade (5). The female guide (8) for the first upper blade (2) is interrupted at the height of the metatarsals to allow the swimmer to walk when the blades (2, 5) are not engaged in the shoe (1). The guide (9) for the second lower blade (5) is carved on a sole of the floor (10) of the shoe (1), where said floor (10) has in its sole some grooves (11) to lose weight and thus achieve greater performance.
    [0090]
    [0091] The geometry of the blades (2, 5), wide at the height of the instep and pointed at the toe, is optimal for achieving the ideal momentum during the kick in the breaststroke swimming cycle and prevent the swimmer's ankle suffer excessive efforts. The first (2) and the second (5) blades include ribs (3, 6).
    [0092]
    [0093] Both blades (2, 5) have a decreasing cross section as they move away from the shoehorn (1) (figures 2a and 3a) providing stiffness in the area closest to the shoehorn (1) and the elasticity we need for the impulse in the most away from said footwear (1); where said farthest zone meets the ribs (3, 6). Thus, the blades themselves (2, 5), work with a decreasing cross-sectional area as they move away from their tight fitting in the female guides (8, 9), so that the female guides (8, 9) and the respective blades (2, 5) are flush.
    [0094]
    [0095] The blades (2, 5) are perfectly coupled to the female guides (8, 9) of the footwear (1) by means of male elements (13, 15) in the form of a dovetail, to avoid transverse movements. In order to avoid longitudinal movements, angled tabs (14,16) are used to prevent forward movement, and front extensions (4, 7) that prevent backward movement and fit perfectly with the curvature of the footwear (1 ).
    [0096]
    [0097] Both the angled tabs (14, 16) and the front extensions (4, 7) are part of the blades themselves (2, 5) and are located in opposite extreme areas of said blades (2, 5).
    [0098]
    [0099] The shoe (1) includes a centered hole (17) carved in the sole of the floor (10) with the dimensions sufficient to allow the correct operation of the angled flange (16) of the second lower blade (5) and have space to decouple the mechanism manually.
    权利要求:
    Claims (7)
    [1]
    1. - Flap for swimming training in the breaststroke style, which comprises an enveloping structure formed by a footwear (1) that includes a cut (10 ') and a floor (10) that delimit a hole configured to fit inside a foot of a user; characterized in that it comprises a first blade (2) and a second blade (5) that are arranged in opposition and centered in longitudinal planes along parts of the cut (10 ') and the floor (10); where the first blade (2) is configured to anchor to the cut (10 ') by means of a first tongue and groove coupling; and where the second blade (5) is configured to anchor to the floor (10) by a second tongue and groove coupling.
    [2]
    2. - Swim fin for swimming style training, according to claim 1, characterized in that the tongue and groove couplings comprise female guides (8, 9) and male elements (13, 15) in the form of a dovetail; where the female guides (8, 9) are located in the cut (10 ') and the floor (10) of the footwear (1), while the male elements are located in the first blade (2) and in the second blade ( 5); and where the male elements (13, 15) are immobilized along the female guides (8, 9) by means of retention devices.
    [3]
    3. - Swim fin for swimming style training according to claim 2, characterized in that the retention devices comprise:
    - bent tabs (14, 16) located at rear ends of the first blade (2) and the second blade (5);
    - front extensions (4, 7) located at front ends of the first blade (2) and the second blade (5); where the front and rear ends of the first blade (2) and second blade (5) are located in opposite areas of both blades (2, 5);
    - First stops and a few second stops located in the footwear (1), on which the angled tabs (14, 16) and the front extensions (4, 7) of both blades (2, 5) contact and anchor.
    [4]
    4. - Swim fin for swimming style training, according to any one of the preceding claims 2 or 3, characterized in that the female guide (8) of the cut (10 ') of the shoe (1) has a length ranging from one front zone corresponding with the user's toes to an area that corresponds to the metatarsals of said user's foot when it is housed within the foot pocket (1).
    [5]
    5. Swim flap for swimming training , according to any one of the preceding claims, characterized in that two opposite sides of the cut (10 ') of the shoe (1) have two openings (12) facing each other that are configured to circulate water while using the fin ..
    [6]
    6. Swim flap for swimming training , according to claim 3, characterized in that the floor (10) of the shoe (1) includes a centered hole (17) carved in the sole of said floor (10); wherein said centered hole (17) is configured to accommodate the angled flange (16) of the second blade (5).
    [7]
    7. Swim fin for swimming style training , according to claim 2, characterized in that the first blade (2) and the second blade (5) comprise: - ribs (3, 6) located at edges opposite the edges in which the male elements (13, 15) of said blades (2, 5) are found;
    - surfaces with decreasing cross sections from the area where the male elements are located (13, 15) to the opposite area where the ribs are located (3, 6); where this configuration of the blades (2, 5) provides rigidity in the area closest to the footwear (1) and greater elasticity in the area furthest from said footwear (1).
    one
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    同族专利:
    公开号 | 公开日
    ES2735314B2|2021-07-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US5183424A|1991-09-05|1993-02-02|Field John D|Swimming flipper|
    FR2738493A1|1995-09-07|1997-03-14|Scott Dillon Surfing Products|Swimming flipper propulsion blade|
    US20110009244A1|2003-12-30|2011-01-13|Aqx, Inc.|Shoe for deep-water-running exercise|
    US20150196808A1|2014-01-16|2015-07-16|Kathleen Davis|Swimming Fin|
    US9375610B1|2014-12-16|2016-06-28|Henry H. Bilge|Swim fin|
    FR3044559A1|2016-06-24|2017-06-09|Didier Kehr|RIGID AXIAL SAILING PALM|
    法律状态:
    2019-12-17| BA2A| Patent application published|Ref document number: 2735314 Country of ref document: ES Kind code of ref document: A1 Effective date: 20191217 |
    2021-07-06| FG2A| Definitive protection|Ref document number: 2735314 Country of ref document: ES Kind code of ref document: B2 Effective date: 20210706 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201930467A|ES2735314B2|2019-05-28|2019-05-28|BRAZA STYLE SWIMMING TRAINING FIN|ES201930467A| ES2735314B2|2019-05-28|2019-05-28|BRAZA STYLE SWIMMING TRAINING FIN|
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