FR2494588A1 - Stabiliser for swimming flipper - has double deflector fins on each side decreasing in height from front to back - Google Patents
Stabiliser for swimming flipper - has double deflector fins on each side decreasing in height from front to back Download PDFInfo
- Publication number
- FR2494588A1 FR2494588A1 FR8024934A FR8024934A FR2494588A1 FR 2494588 A1 FR2494588 A1 FR 2494588A1 FR 8024934 A FR8024934 A FR 8024934A FR 8024934 A FR8024934 A FR 8024934A FR 2494588 A1 FR2494588 A1 FR 2494588A1
- Authority
- FR
- France
- Prior art keywords
- fins
- height
- stabiliser
- double
- flipper
- 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- Withdrawn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
- 230000009182 swimming Effects 0.000 title claims abstract description 6
- 239000003381 stabilizer Substances 0.000 title abstract 2
- 230000003247 decreasing effect Effects 0.000 title 1
- 230000000087 stabilizing effect Effects 0.000 claims description 5
- 230000001141 propulsive effect Effects 0.000 claims 1
- 210000000006 pectoral fin Anatomy 0.000 abstract 4
- 241001417523 Plesiopidae Species 0.000 description 2
- 241000446313 Lamella Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Toys (AREA)
Abstract
Description
L'objet de l'invention concerne un dispositif stabilisateur pour palme de natation. The object of the invention relates to a stabilizing device for swimming fins.
I1 est destiné à équiper plus particulièrement les palmes à longue voilure rigide ou semi rigide afin de maintenir la surface flexible propulsée dans l'axe de poussée et d'augmenter leur rendement dynamique. I1 is intended to equip more particularly fins with long rigid or semi-rigid wings in order to maintain the flexible surface propelled in the thrust axis and to increase their dynamic efficiency.
Les palmes de natation de tous types ont généralement des profils de nervures situées à la partie antérieure et prolongeant la poche de pied. Swimming fins of all types generally have rib profiles located at the front and extending the foot pocket.
Les nervures latérales se prolongent sur les bord de la voilure et servent à structurer l'ensemble, tout en formant des sortes de dérives. The lateral ribs extend over the edges of the wing and serve to structure the whole, while forming sorts of daggerboards.
Ces profils sont insuffisants pour éviter les dérapages et glissements latéraux des palmes longues principalement surtout lors de la poussée assurant la propulsion de l'usager. These profiles are insufficient to avoid slippage and lateral slippage of the long fins, especially during the push ensuring the propulsion of the user.
Le dispositif suivant l'invention supprime cet inconvénient et permet d'assurer au moment de l'effort propulseur la stabilisation de la voilure dans l'axe de poussée évitant tout glissement latéral ou dérapage pendant sa course motrice. The device according to the invention eliminates this drawback and makes it possible to ensure, at the time of the propelling force, the stabilization of the airfoil in the thrust axis preventing any lateral sliding or slipping during its driving stroke.
Il est constitué par le positionnement à l'extrémité de la voilure, sur 1' arete terminale de son axe longitudinal ou sur les axes parallèles à celui-ci, d'une ou plusieurs doubles dérives implantées symétriquement sur ses faces opposées et de petite dimension surtout en longueur, afin de ne gêner en rien la flexibilité de la palme. It is constituted by the positioning at the end of the wing, on the terminal edge of its longitudinal axis or on the axes parallel to it, of one or more double fins installed symmetrically on its opposite faces and of small dimension especially in length, so as not to hinder in any way the flexibility of the palm.
Sur les dessins annexés, donnés à titre d'exemple non limitatif, d'une des formes de réalisation de l'objet de l'invention
La figure 1 représente le positionnement de la double dérive.In the accompanying drawings, given by way of nonlimiting example, of one of the embodiments of the subject of the invention
Figure 1 shows the positioning of the double fin.
La figure 2 montre vu en élévation le positionnement du dispostif et sa dimension. Figure 2 shows in elevation the positioning of the device and its size.
La figure 3 est une vue en perspective d'une palme courante pourvue du dispositif stabilisateur. Figure 3 is a perspective view of a common palm provided with the stabilizing device.
Le dispositif stabilisateur de poussée augmentant le rendement dynamique de la palme figures 1, 2, 3, est constitué par une double lamelle 1, 2 à profil dégréssif vers l'arrière, implantée symétriquement sur les faces opposées 3 et 4 de la voilure 5. The thrust stabilizing device increasing the dynamic efficiency of the palm FIGS. 1, 2, 3, is constituted by a double lamella 1, 2 with a degressive profile towards the rear, symmetrically installed on the opposite faces 3 and 4 of the blade 5.
Ces lamelles 1, 2 sont de dimensions réduites et implantées figure 2 sur I ' arête terminale de la voilure 5 et dans son axe longitudinal X Y ou sur des axes parallèles à celui-ci. These strips 1, 2 are of reduced dimensions and located in FIG. 2 on the terminal edge of the airfoil 5 and in its longitudinal axis X Y or on axes parallel thereto.
L ' effet stabilisateur est renforcé par les nervures formées par les bordures 7, 8 et les dérives courantes 9, 10 sont nettement insuffisantes pour éviter des dérapages ou le glissement latéral de la voilure 5 au moment de la poussée. The stabilizing effect is reinforced by the ribs formed by the edges 7, 8 and the current fins 9, 10 are clearly insufficient to avoid slippage or the lateral sliding of the wing 5 at the time of the push.
C'est précisément ce glissement qui fait perdre de la force de propulsion à la palme. It is precisely this sliding that causes the palm to lose propelling force.
Cette double dérive 1, 2 symétriquement opposée "ancre" 1' extrémité de la voilure au moment de sa déformation sous 1 'effort de poussée dans les filets d'eau qu'elle brasse. Elle atténue les turbulences anarchiques et les poussées latérales et de ce fait libère le pied moteur du problème des glissements latéraux à droite ou à gauche 11, 12 de l'axe de nage X Y. This double drift 1, 2 symmetrically opposite "anchors" the end of the airfoil at the time of its deformation under the pushing force in the streams of water which it stirs. It attenuates anarchic turbulence and lateral thrusts and therefore frees the engine base from the problem of lateral sliding to the right or to the left 11, 12 of the swimming axis X Y.
La faible dimension de ces profils de dérive aussi bien rapportés que venus de fabrication par moulage n 'enlèvent en rien la flexibilité de la palme. The small size of these drift profiles, both fitted and produced by molding, in no way detracts from the flexibility of the palm.
Ces profils peuvent être réalisés sur les palmes demi longues et même à voilure ordinaire ou souple avec des résultats identiques. These profiles can be produced on half long fins and even with ordinary or flexible wings with identical results.
Cependant ces dérives produisent un effet maximum sur les voilures longues dont les battements provoquent des remous de grandes amplitudes et où le pied controle moins bien les battements. However, these drifts produce a maximum effect on long canopies whose beats cause eddies of great amplitudes and where the foot controls the beats less well.
Toutefois les formes, dimensions et dispositions des différents éléments pourront varier dans la limite des équivalents comme d ' ailleurs les matières utilisées pour leur fabrication, sans changer pour cela la conception générale de l'invention qui vient d'être décrite. However, the shapes, dimensions and arrangements of the various elements may vary within the limit of equivalents, as indeed the materials used for their manufacture, without thereby changing the general conception of the invention which has just been described.
C'est ainsi que des doubles ou multiples dérives 13, 14 et autres peuvent être implantées sur des axes parallèles à X Y avec ou sans dérives axiales. This is how double or multiple drifts 13, 14 and others can be installed on axes parallel to X Y with or without axial drifts.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8024934A FR2494588A1 (en) | 1980-11-21 | 1980-11-21 | Stabiliser for swimming flipper - has double deflector fins on each side decreasing in height from front to back |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8024934A FR2494588A1 (en) | 1980-11-21 | 1980-11-21 | Stabiliser for swimming flipper - has double deflector fins on each side decreasing in height from front to back |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2494588A1 true FR2494588A1 (en) | 1982-05-28 |
Family
ID=9248296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8024934A Withdrawn FR2494588A1 (en) | 1980-11-21 | 1980-11-21 | Stabiliser for swimming flipper - has double deflector fins on each side decreasing in height from front to back |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2494588A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0607568A1 (en) * | 1993-01-20 | 1994-07-27 | HTM SPORT S.p.A. | Swimming flipper |
EP0620752A1 (en) * | 1992-10-26 | 1994-10-26 | Robert B Evans | Swim fin having multiple interchangeable components. |
US6354894B1 (en) * | 2000-04-13 | 2002-03-12 | Robert B. Evans | Spear-blade swim fin |
WO2009016422A1 (en) * | 2007-07-27 | 2009-02-05 | Miljenko Jelusic | Fins for swimming and diving with vertical wings - stabilizers |
-
1980
- 1980-11-21 FR FR8024934A patent/FR2494588A1/en not_active Withdrawn
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0620752A1 (en) * | 1992-10-26 | 1994-10-26 | Robert B Evans | Swim fin having multiple interchangeable components. |
EP0620752A4 (en) * | 1992-10-26 | 1995-02-22 | Robert B Evans | Swim fin having multiple interchangeable components. |
EP0607568A1 (en) * | 1993-01-20 | 1994-07-27 | HTM SPORT S.p.A. | Swimming flipper |
US5443593A (en) * | 1993-01-20 | 1995-08-22 | H.T.M. Sport S.P.A. | Swimming flipper |
US6354894B1 (en) * | 2000-04-13 | 2002-03-12 | Robert B. Evans | Spear-blade swim fin |
WO2009016422A1 (en) * | 2007-07-27 | 2009-02-05 | Miljenko Jelusic | Fins for swimming and diving with vertical wings - stabilizers |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |