FR2480129A1 - Swimming fin with variable inclination - has reinforcing ribs extended under foot and pivoting around point under arch - Google Patents
Swimming fin with variable inclination - has reinforcing ribs extended under foot and pivoting around point under arch Download PDFInfo
- Publication number
- FR2480129A1 FR2480129A1 FR8008356A FR8008356A FR2480129A1 FR 2480129 A1 FR2480129 A1 FR 2480129A1 FR 8008356 A FR8008356 A FR 8008356A FR 8008356 A FR8008356 A FR 8008356A FR 2480129 A1 FR2480129 A1 FR 2480129A1
- Authority
- FR
- France
- Prior art keywords
- foot
- under
- rib
- arch
- heel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B31/00—Swimming aids
- A63B31/08—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs
- A63B31/10—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet
- A63B31/11—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs held by, or attachable to, the hands or feet attachable only to the feet
Abstract
Description
L'objet de l'invention concerne un dispositif de nervures axiales pour palme de natation. The object of the invention relates to a device of axial ribs for swimming fins.
Il concerne un perfectionnement fonctionnel diminuant la fatigue ressentie au niveau de l'avant pied et de la cheville de l'usager9 tout en augmentant le rende ment dynamique de propulsion0
Il a été constaté que dans les dispositifs connus, la voilure des palmes prolonge le dessus de pied, du fait que l'on visait à diminuer l'angle jambe pied, mais aucune palme ainsi conçue, ne parvenait à éviter la zone négative située immédiatement à l'extrémité du pied, ce qui rendait au moins un tiers de la voilure inéfficace.It concerns a functional improvement reducing the fatigue felt in the user's forefoot and ankle9 while increasing the dynamic propulsion efficiency.
It has been found that in the known devices, the fin of the fins extends the top of the foot, because the aim was to decrease the leg-foot angle, but no palm thus conceived, succeeded in avoiding the negative zone located immediately at the end of the foot, which made at least a third of the blade ineffective.
On a alors articulé la palme sous la voûte plantaire en ne lui faisant plus prolonger la poche de pied, et on a conforté la courbure souple par une nervure axiale de section lui conférant la rigidité désirée. We then articulated the palm under the arch of the foot, making it no longer extend the foot pocket, and we reinforced the flexible curvature by an axial rib of section giving it the desired rigidity.
L'ensemble articulé lorsqu'il atteignait le rayon de courbure maximale prévu devenait rigide et indé- formable, ce qui constituait déjà un progrès énorme pour donner à l'usager la possibilité d'exécuter une nage pis- ciforme, de développer plus d'énergie propulsive avec une moindre fatigue. The articulated unit when it reached the maximum radius of curvature became rigid and undeformable, which was already a huge step forward to give the user the possibility of performing a shallow stroke, to develop more propulsive energy with less fatigue.
On approche alors ainsi de la nage dite pisci- forme en supprimant l'angle jambe pied. Résultat qui n'a pas été atteint jusqu'à ce jour. We thus approach the so-called swimming pool by removing the leg-to-foot angle. Result that has not been achieved to date.
On a ensuite séparé la partie avant du pied do la voilure en créant sous le milieu de la voûte plantaire un point de flexion afin que l'avant pied ne soit pas seul A supporter l'effort du nageur. We then separated the front part of the foot from the wing by creating under the middle of the arch a point of flexion so that the forefoot is not alone to support the effort of the swimmer.
Le dispositif suivant l'invention supprime cet te iatigue et permet au nageur ou plongeur de transmettre sans effort prononcé, l'intégralité de sa force musculaire pour améliorer les conditions de propulsion tout en reposant le pied parfaitement maintenu de plus, le prolongement de la semelle et des nervures jusque sous le talon forme levier qui stabilise le pied au moment de l'effort. The device according to the invention eliminates this iatigue and allows the swimmer or diver to transmit, without pronounced effort, all of his muscular strength to improve the propulsion conditions while resting the perfectly maintained foot, the extension of the sole. and ribs up to the heel lever form which stabilizes the foot during effort.
Il se caractérise essentiellement par le prolongement de ou des nervures de renforcement sous le pied, c'est-à-dire jusqu'au talon telle une semelle intégrale. Ce prolongement de nervure se combine avec le point d'articu
Ration toujours maintenu sous la sottie plantaire.It is essentially characterized by the extension of reinforcement ribs under the foot, that is to say up to the heel like an integral sole. This rib extension combines with the articulation point
Ration always maintained under the sottie plantar.
Sur les dessins annexée, donnés à titre d'exemple non limitatif, d1une des formes de réalisation de lob- jet de l'invention. In the appended drawings, given by way of nonlimiting example, of one of the lobjet embodiments of the invention.
La figure 1 montre la palme vue en coupe longitu dinale et en élévation avec la nervure de renforcement se prolongeant jusqu'au $talon. Figure 1 shows the palm seen in longitudinal section and in elevation with the reinforcing rib extending to the heel.
Les figures 2 et 3 montrent le fonctionnement du dispositif. Figures 2 and 3 show the operation of the device.
La palme figure 1 est constituée par une poche chaussante t enveloppant le dessus du pied. The palm figure 1 is constituted by a foot pocket t enveloping the top of the foot.
La semelle 2 détachée de la palme se prolonge jusqu'au talon 3, mais est doublée ou confortée par le secteur 4 de la nervure ou des nervures qui se prolongent jusqu'au talon. The sole 2 detached from the palm extends to the heel 3, but is doubled or reinforced by the sector 4 of the rib or ribs which extend to the heel.
C'est ce qui caractérise l'invention avec la copibiaaison du point d'articulation 5. This is what characterizes the invention with the jointing of the articulation point 5.
La palme souple ou même rigide ou semai rigide est munie de la nervure 6 qui se prolonge avec profil diminuant progressivement sa section jusqu'à l'extrémité 7. The flexible or even rigid palm or rigid semai is provided with the rib 6 which is extended with a profile progressively reducing its section up to the end 7.
Maie lorsque l'effort de poussée atteint son maxiimm d'intensité, c'étaient les avant pied 13, et cheville 14 qui supportaient l'intégralité de l'effort sans aucun point d'appui. But when the pushing effort reaches its maximum intensity, it was the forefoot 13 and ankle 14 which supported the entire effort without any point of support.
Le nageur éprouvait alors rapidement une fatigue proportionnelle A l'effort qu'il réalisait. The swimmer then quickly experienced fatigue proportional to the effort he was making.
Le dispositif suivant l'invention attenue et supprime dans de très grandes proportions cette fatigue, permettant à l'usager de prolonger son effort et son temps d'avancement, tout en transmettant avec la mdme intensité la force musculaire propulsive, car le secteur 3, 4 forme levier et point d'appui stabilisé pour le pied. The device according to the invention attenuated and removes this fatigue in very large proportions, allowing the user to prolong his effort and his advancement time, while transmitting with the same intensity the propulsive muscular force, since sector 3, 4 lever shape and stabilized fulcrum for the foot.
La palme effectue ainsi un mouvement de gira tion autour de l'axe situé sous la voûte plantaire. Elle engendre les resultantes F 1 et F 2, de forces égales et directement opposées (Fif 2). La semelle forme alors levier appuyant contre le talon et la plante du pied, qui est ainsi stabilisé au moment de l'effort. The palm thus performs a gyration movement around the axis located under the arch of the foot. It generates the resultants F 1 and F 2, of equal and directly opposite forces (Fif 2). The sole then forms a lever pressing against the heel and the sole of the foot, which is thus stabilized during exercise.
Lorsque la voilure es sollicitée par les batte ments du pied du nageur, la palme vient se plaquer sous le talon suivant la resultante R 2 2, Fig 3. When the airfoil is stressed by the swings of the swimmer's foot, the palm comes to rest under the heel according to the resultant R 2 2, Fig 3.
Dès lors, aucune contrainte musculaire (crampes) n'est ressentie au niveau de la voûte plantaire, ce qui permet au nageur de développer plus d'énergie propulsive avec une moindre fatigue, cet appui sous le talon peut être réalisé sur toutes les palmes existantes dans le commerce en prolongeant les nervures, et s'il y a lieu la semelle jusqu'au talon afin de créer un point d'appui au moment de l'effort du nageur. Consequently, no muscular constraint (cramps) is felt at the level of the arch of the foot, which allows the swimmer to develop more propulsive energy with less fatigue, this support under the heel can be achieved on all existing fins. commercially by extending the ribs, and if necessary the sole to the heel to create a point of support at the time of the effort of the swimmer.
Toutefois les formes, dimensions et dispositions des différents éléments, pourront varier dans la limite des équivalents, comme d'ailleurs les matières utilisées sans changer pour cela la conception générale de l'inventi on qui vient d'être décrite. However, the shapes, dimensions and arrangements of the various elements may vary within the limit of the equivalents, like the materials used without changing the general conception of the inventi on which has just been described.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8008356A FR2480129A1 (en) | 1980-04-11 | 1980-04-11 | Swimming fin with variable inclination - has reinforcing ribs extended under foot and pivoting around point under arch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8008356A FR2480129A1 (en) | 1980-04-11 | 1980-04-11 | Swimming fin with variable inclination - has reinforcing ribs extended under foot and pivoting around point under arch |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2480129A1 true FR2480129A1 (en) | 1981-10-16 |
Family
ID=9240853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8008356A Withdrawn FR2480129A1 (en) | 1980-04-11 | 1980-04-11 | Swimming fin with variable inclination - has reinforcing ribs extended under foot and pivoting around point under arch |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2480129A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4887985A (en) * | 1984-05-03 | 1989-12-19 | Amf Incorporated | Swim fin provided with a self-shaping, fluid flow conveying and controlling canal-like member |
WO2007135550A1 (en) | 2006-05-16 | 2007-11-29 | Technisub S.P.A. | Flipper |
FR3044559A1 (en) * | 2016-06-24 | 2017-06-09 | Didier Kehr | RIGID AXIAL SAILING PALM |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB301702A (en) * | 1928-05-12 | 1928-12-06 | Max Pincus Brand | A swimming and walking shoe |
FR1386981A (en) * | 1963-04-04 | 1965-01-22 | Device for underwater or surface swimming | |
US3302223A (en) * | 1965-03-26 | 1967-02-07 | Ciccotelli Stephen Samuel | Swim-fin |
FR2149103A5 (en) * | 1971-07-30 | 1973-03-23 | Pirelli | Rubber swimming fins - with glass fibre polyester reinforcement |
FR2177260A5 (en) * | 1972-03-24 | 1973-11-02 | Beuchat Et Co Sa Ets | |
FR2355529A1 (en) * | 1976-06-23 | 1978-01-20 | Beuchat Georges | Flipper for underwater swimming - has side ribs and central channel to stabilise and guide water expelled by flexible flap valves |
-
1980
- 1980-04-11 FR FR8008356A patent/FR2480129A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB301702A (en) * | 1928-05-12 | 1928-12-06 | Max Pincus Brand | A swimming and walking shoe |
FR1386981A (en) * | 1963-04-04 | 1965-01-22 | Device for underwater or surface swimming | |
US3302223A (en) * | 1965-03-26 | 1967-02-07 | Ciccotelli Stephen Samuel | Swim-fin |
FR2149103A5 (en) * | 1971-07-30 | 1973-03-23 | Pirelli | Rubber swimming fins - with glass fibre polyester reinforcement |
FR2177260A5 (en) * | 1972-03-24 | 1973-11-02 | Beuchat Et Co Sa Ets | |
FR2355529A1 (en) * | 1976-06-23 | 1978-01-20 | Beuchat Georges | Flipper for underwater swimming - has side ribs and central channel to stabilise and guide water expelled by flexible flap valves |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4887985A (en) * | 1984-05-03 | 1989-12-19 | Amf Incorporated | Swim fin provided with a self-shaping, fluid flow conveying and controlling canal-like member |
WO2007135550A1 (en) | 2006-05-16 | 2007-11-29 | Technisub S.P.A. | Flipper |
US7988510B2 (en) | 2006-05-16 | 2011-08-02 | Technisub S.P.A. | Flipper |
FR3044559A1 (en) * | 2016-06-24 | 2017-06-09 | Didier Kehr | RIGID AXIAL SAILING PALM |
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ST | Notification of lapse |