FR2622411A1

FR2622411A1 - Leisure and work shoe sole permitting easy progress over unstable terrain and increasing the efficiency of movements in swimming

Info

Publication number: FR2622411A1
Application number: FR8715314A
Authority: FR
Original assignee: Individual
Current assignee: Individual
Priority date: 1987-11-04
Filing date: 1987-11-04
Publication date: 1989-05-05
Anticipated expiration: 2007-11-04
Also published as: FR2622411B1

Abstract

Leisure and work shoe sole permitting easy progress over unstable terrain: desert, sand, snow, marshy ground, etc. Moreover, these soles increase the efficiency of movements in swimming. This invention relates to the technical fields of footwear and of leisure and sports articles. 1) Increase in the surface area bearing on the ground via projecting elements of the order of 400 cm<2> per sole, namely an increment, for an average shoe size, in a proportion of 1 to 3 (surface area of a traditional sole 200 cm<2>, surface area of the novel sole 600 cm<2>). 2) Increase in the perimeter of the sole; of the order of 280 centimetres, hence a better use of the surface crust of the ground, which itself involves a first reduction of sinking-in and improved horizontal propulsion, thus limiting the efforts required to advance. 3) These two above points, combined with increased flexibility characteristics, improve the efficiency of movements in swimming. N.B.: The various dimensions given above are supplied by way of indication and in no way constitute the specific nature of the innovation.

Description

TITRE Semelle de chaussure fixe ou amovible pour l'évolution aisée sur terrains meubles et pour la natation.TITLE Fixed or removable shoe sole for easy development on soft ground and for swimming.

Cette invention appartient aux domaines techniques de la chaussure et des articles de loisirs et de sports. This invention belongs to the technical fields of footwear and of leisure and sports articles.

DESCRIPTION
Le principe de l'innovation repose particulièrement sur la forme de la semelle. Cette forme se caractérise par des éléments disposés en débordement de la semelle, et ainsi constitués
Les chaussures des grandes pointures comporteront environ 24 éléments, les petites pointures en comportant environ 20.DESCRIPTION
The principle of innovation is based particularly on the shape of the sole. This shape is characterized by elements arranged projecting from the sole, and thus constituted
Large size shoes will have about 24 elements, small sizes will have about 20.

Structure d'un élément : figures 2 et 3
1er en plan : la forme est celle d'une goutte d'eau, élargie du côté de sa pointe (i), mais elle pourra également être rectangulaire, ou d'une autre forme.Structure of an element: figures 2 and 3
1st in plan: the shape is that of a drop of water, enlarged on the side of its point (i), but it could also be rectangular, or of another shape.

La partie pointe élargie est solidaire de la partie centrale (2) de la semelle. La partie circulaire (3) est d'un diamètre approximatif de 30 millimètres et en forme de calotte sphérique (4), ou autre forme permettant le désensablage et l'évacuation
La longueur totale de l'élément (5), suivant sa position sur le pourtour de la semelle (2), sera de 30 à 65 millimètres environ (en fonction notamment de la pointure). Ces éléments auront une surface d'empreinte moyenne de 17 à 18 cm2 soit pour une semelle, de 400 cm2 environ.The enlarged toe part is integral with the central part (2) of the sole. The circular part (3) has an approximate diameter of 30 millimeters and in the shape of a spherical cap (4), or other shape allowing sand removal and evacuation
The total length of the element (5), depending on its position on the periphery of the sole (2), will be approximately 30 to 65 millimeters (depending in particular on the size). These elements will have an average footprint of 17 to 18 cm2, ie for a sole, approximately 400 cm2.

2e en coupe : Les éléments en coupe se caractériseront par une rigidité croissante depuis l'extrémité libre (6) jusqu'à la partie solidaire de la semelle (7). Cette partie à proximité de la semelle possède une rigidité voisine de celle-c: de sorte que soit obtenu par enfoncement dans un terrain meuble un "effet de voute
La partie libre des éléments conservant la souplesse nécessaire au dégagement, et au "désensablement", de sorte que le dégagement soit facile et complet. De cette façon, aucune partie du sol ne restera en dépôt sur la face supérieure des éléments
Pour cela, la partie (3) la plus large de l'élément sera en forme de calotte sphérique (4). Pour obtenir cette rigidité croissante de l'extrémité vers le centre ltépaisseur des éléments est croissante, notamment grâce à une nervure de rigidification (8).2nd in section: The elements in section will be characterized by increasing rigidity from the free end (6) to the part integral with the sole (7). This part near the sole has a rigidity similar to that c: so that is obtained by driving in a soft ground a "vault effect
The free part of the elements retaining the flexibility necessary for the release, and the "sand removal", so that the release is easy and complete. In this way, no part of the soil will remain deposited on the upper face of the elements.
For this, the widest part (3) of the element will be in the form of a spherical cap (4). To obtain this increasing rigidity from the end towards the center the thickness of the elements is increasing, in particular thanks to a stiffening rib (8).

3e partie centrale de la semelle : Cette partie (2) comportera des sculptures d'adhérence, en forme de troncs de cônes inversés en nombre et en taille variant selon les pointures. Cette partie pourra comporter d'autres types de sculptures à caractère ouvert, pour assurer l'auto-nettoiement, et limiter ainsi le poids des particules du sol pouvant adhérer au centre de la semelle. 3rd central part of the sole: This part (2) will have traction patterns, in the form of trunks of inverted cones in number and size varying according to the sizes. This part may include other types of open-ended tread pattern, to ensure self-cleaning, and thus limit the weight of soil particles that may adhere to the center of the sole.

Principe de l'efficacité
I) en terrain meuble : l'augmentation de surface de la semelle obtenue grâce aux éléments décrits ci-dessus est en moyenne de 400 centimètres carrés, triplant ainsi la surface normale d'une semelle de pointure 40. L'effet de voûte permettra une répartition de l'appui au sol selon des vecteurs multidirectionnels, limitant ainsi l'enfoncement tout en permettant un effort de dégagement -du fait de leur flexibilité relative- nettement inférieur à celui qui est nécessité par le principe des "raquettes à neige".Principle of efficiency
I) in soft ground: the increase in surface area of the sole obtained by means of the elements described above is on average 400 square centimeters, thus tripling the normal surface of a size 40 sole. The arch effect will allow a distribution of the support on the ground according to multidirectional vectors, thus limiting the sinking while allowing a clearance force - due to their relative flexibility - significantly lower than that required by the principle of "snowshoes".

2) mouvement de natation : comme pour le principe des nalmes de natation, I"efficacité est obtenue par l'augmentation de la surface propulsante. 2) swimming movement: as for the principle of swimming standards, the efficiency is obtained by the increase of the propelling surface.

La rigidité décroissante des éléments procure également une augmentation de l'efficacité des mouvements de natation.The decreasing rigidity of the elements also provides an increase in the efficiency of swimming movements.

REVU ME DES CARACTERISTIQUES ET AVANTAGES OBTENUS
I) Augmentation de la surface d'appui au sol : d l'ordre de 400 cm2 par semelle, soit un accroissement, pour une pointure moyenne, dans une proportion de I à 3 (surface d'une semelle traditionnelle 200 cm2, surface de la semelle nouvelle 600 cm2).REVIEW OF FEATURES AND BENEFITS ACHIEVED
I) Increase in the support surface on the ground: d of the order of 400 cm2 per sole, i.e. an increase, for an average size, in a proportion of I to 3 (surface of a traditional sole 200 cm2, surface of the new 600 cm2 sole).

2) Augmentation du périmètre de la semelle : de l'ordre de 280 centimè- tres, d'où une meiileure utilisation de la croute de surface de sol, ce qui Implique en elle même une première réduction de l'enfoncement et une propulsion horizontale améliorée, limitant ainsi l'effort de la progression. 2) Increase in the perimeter of the sole: of the order of 280 centimeters, hence a better use of the surface crust of the ground, which in itself implies a first reduction of the sag and a horizontal propulsion improved, thus limiting the effort of progression.

3) Ces deux points ci-dessus, joints aux caractéristiques de flexibilité croissante améliorent l'efficacité des mouvements de la natation. 3) These two points above, together with the characteristics of increasing flexibility, improve the efficiency of swimming movements.

N.B : les différentes dimensions données ci-dessus, sont fournies à titre indicatif, et ne constituent en aucun cas la spécificité de l'innovation. N.B: the different dimensions given above are provided for information only, and do not in any way constitute the specificity of the innovation.

Claims

CLAIM

New fixed or removable sole allowing easy evolution on soft ground: desert, sand, snow, marshy ground and, increasing the efficiency of swimming movements, when used for swimming.

Characterized in that it comprises at its perimeter overhanging elements, in the form of a drop of water, or other shape, increasing in a proportion of i to 3 the bearing surface on the ground, the release of the sole being facilitated by the spaces between the overhanging elements on the one hand, and by the shape of the upper part of the elements on the other hand.

Sole according to Claim 1, characterized in that the upper part of the elements has a profile in the form of a spherical cap, thus ensuring the flow of particles which may have settled.

Sole according to claim i or 2, characterized in that the elements attached to the periphery of the sole have the particularity of having a stiffness rib, of decreasing thickness from the edge of the sole towards the part in the form of a spherical cap, giving thus flexibility at the end of the element which is suitable for easily removing the sand from it.

Sole according to any one of the preceding claims, characterized in that it has an increase in perimeter of approximately 280 centimeters compared to existing soles.