FR2654640A1

FR2654640A1 - Swimming flipper

Info

Publication number: FR2654640A1
Application number: FR8915380A
Authority: FR
Inventors: Bazalgette Guy
Original assignee: SOMMAP SARL
Current assignee: SOMMAP SARL
Priority date: 1989-11-17
Filing date: 1989-11-17
Publication date: 1991-05-24
Anticipated expiration: 1995-11-17
Also published as: FR2654640B3

Abstract

The subject of the present invention is a swimming flipper. It consists of the combination, on the one hand, of a foot pocket (2) including two double lateral gussets (9) and a rear pull (tab) (10) enabling them to be spaced apart for taking off the flipper, and, on the other hand, of a fin part (1) provided with an elongate transverse aperture (5) having an opening plane substantially perpendicular to the fin part and the edge (6) of which located on the foot side is lower than the opposite edge (7), two vertical ribs (8) integral with the fin part and traversing the said aperture longitudinally, maintaining its shape and guiding the thin streams of water. It relates to the field of equipment intended for water sports.

Description

La présente invention a pour objet une palme de natation.The present invention relates to a swimming palm.

Elle concerne le domaine des équipements destinés aux sports nautiques.It concerns the field of equipment intended for nautical sports.

Les dispositifs réalisés à ce jour sont le plus souvent constitués d'une voilure souple attenante à une poche de pied en forme de chausson permettant de fixer 1 ' ensemble au pied du nageur. La matière généralement utilisée est du latex ou un élastomère ayant des propriétés similaires. En raison de 1 ' im- portance des efforts transmis, la palme doit être fermement assujetie au pied par l'intermédiaire de la poche de pied, qui de ce fait est souvent très difficile à retirer, en particulier lorsque 1 'utilisateur sort de 1' eau, le latex ainsi que la peau mouillés étant particulièrement peu glissants.The devices produced to date most often consist of a flexible wing adjoining a foot pocket in the form of a bootie making it possible to fix the assembly at the foot of the swimmer. The material generally used is latex or an elastomer having similar properties. Due to the large amount of force transmitted, the palm must be firmly secured to the foot by means of the foot pocket, which therefore is often very difficult to remove, particularly when the user exits the water, latex and wet skin are particularly slippery.

Par ailleurs, les voilures des palmes de natation connues ont tendance à créer des tourbillons lorsqu ' elles sont manoeuvrées rapidement, ce qui nuit à leur rendement et demande une énergie excessive provoquant une fatigue précoce.Furthermore, the blades of known swimming fins tend to create swirls when they are maneuvered quickly, which affects their performance and requires excessive energy causing early fatigue.

Le dispositif suivant la présente invention supprime ces inconvénients. En effet, il permet de retirer aisément les palmes après utilisation et assure un écoulement laminaire des filets d'eau le long de la voilure.The device according to the present invention eliminates these drawbacks. Indeed, it allows the fins to be easily removed after use and ensures a laminar flow of the water streams along the wing.

Il est constitué par la combinaison, d'une part, d ' une poche de pied comportant deux doubles soufflets latéraux et une tirette arrière permettant de les écarter pour retirer la palme, d'autre part, d'une voilure pourvue d'une oule transversale allongée ayant un plan d'ouverture sensiblement perpendiculaire à la voilure, et dont le bord situé du côté du pied est plus bas que le bord opposé, deux nervures verticales solidaires de la voilure et traversant longitudinalement ladite ouTe, maintenant sa forme et guidant les filets d ' eau . It is constituted by the combination, on the one hand, of a foot pocket comprising two double side bellows and a rear zipper making it possible to spread them to remove the palm, on the other hand, of a wing provided with an oule elongated transverse having an opening plane substantially perpendicular to the blade, and the edge of which on the side of the foot is lower than the opposite edge, two vertical ribs integral with the blade and passing longitudinally through said ouTe, maintaining its shape and guiding the water nets.

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 dispositif vu de dessus.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 device seen from above.

La figure 2 est une coupe verticale longitudinale suivant les flèches A-A de la figure 1.FIG. 2 is a vertical longitudinal section along the arrows A-A of FIG. 1.

La figure 3 montre le dispositif vu de dessous. Figure 3 shows the device seen from below.

Le dispositif, figure 1 à 3, est constitué d'une voilure 1 symétrique attenante à une poche de pied 2, l'ensemble étant réalisé en latex ou élastomère souple.The device, FIGS. 1 to 3, consists of a symmetrical canopy 1 adjoining a foot pocket 2, the assembly being made of latex or flexible elastomer.

En vue de lui donner une certaine rigidité et de contrôler l'écoulement, la voilure 1 est pourvue dans le sens longitudinal de deux nervures latérales 3 et deux nervures médianes 4.In order to give it a certain rigidity and to control the flow, the airfoil 1 is provided in the longitudinal direction with two lateral ribs 3 and two middle ribs 4.

Une ouie transversale 5, allongée, est prévue environ au premier tiers de la voilure, entre les nervures médianes 4.A transverse hole 5, elongated, is provided approximately at the first third of the airfoil, between the middle ribs 4.

Son plan d'ouverture est sensiblement perpendiculaire à la voilure et légèrement incliné vers l'avant. Le bord 6 situé du côté de la poche de pied 2 est plus bas que le bord opposé 7, leur écartement étant compris entre un et quatre millimètres, de façon à favoriser le passage de l'eau de la face supérieure de la palme vers la face inférieure. Deux nervures auxiliaires 8 longitudinales situées entre les nervures médianes 4 et plus courtes que ces dernières, traversent l'ouie transversale 5 et maintiennent les bords 6, 7 de cette dernière dans le but de maintenir sa forme constante en 1' empêchant de s ' ouvrir ou de se fermer.Its opening plane is substantially perpendicular to the airfoil and slightly inclined forward. The edge 6 located on the side of the foot pocket 2 is lower than the opposite edge 7, their spacing being between one and four millimeters, so as to promote the passage of water from the upper face of the palm towards the lower side. Two longitudinal auxiliary ribs 8 located between the middle ribs 4 and shorter than the latter, pass through the transverse hole 5 and maintain the edges 6, 7 of the latter in order to maintain its constant shape by preventing it from opening. or to close.

La poche de pied 2 est équipée de deux doubles soufflets latéraux 9, normalement maintenus serrés par l'élasticité du matériau pour maintenir fermement la palme sur le pied. Une tirette 10 située à 1' arrière et en haut permet d'écarter les soufflets susdits, ce qui a pour effet d'agrandir le périmètre de la poche de pied 2 et de libérer ainsi le pied qui peut être retiré sans difficultés. La tirette 10 est munie d'un trou permettant d ' accrocher les palmes pour leur rangement.The foot pocket 2 is equipped with two double lateral bellows 9, normally held tight by the elasticity of the material to firmly hold the palm on the foot. A zipper 10 located at the rear and at the top makes it possible to separate the aforesaid bellows, which has the effect of enlarging the perimeter of the foot pocket 2 and thus freeing up the foot which can be removed without difficulty. The pull tab 10 is provided with a hole allowing the fins to be hung for storage.

Le positionnement des divers éléments constituifs donnent à ce dispositif un maximum d' effets utiles qui n ' avaient pas été obtenus à ce jour par des dispositifs similaires. The positioning of the various constituent elements gives this device a maximum of useful effects which had not been obtained to date by similar devices.

Claims

10 Swimming palm, concerning the field of equipment intended for nautical sports, consisting of a symmetrical blade (1) adjoining a foot pocket (2), and made of latex or flexible elastomer, characterized by the combination of, a part, of a foot pocket (2) comprising two lateral bellows (9) and a zipper (10) positioned at the rear and at the top of said foot pocket making it possible to separate them to easily remove the palm part, of an airfoil (1) provided with an elongated transverse opening (5) having an opening plane substantially perpendicular to the airfoil and slightly inclined towards the front, and whose edge (6) located on the side of the foot is lower than the opposite edge (7), two vertical ribs (8) integral with the airfoil and passing longitudinally through said opening (5), maintaining its shape by preventing it from opening or closing, and guiding the threads of water.

20 Device according to claim 1, characterized in that each of the side bellows (9) of the foot pocket (2) is double.

30 Device according to any one of the preceding claims, characterized in that the spacing of the edges (6, 7) of the transverse opening (5) is between one and four millimeters.