WO2005013741A1

WO2005013741A1 - Shoe for sports activities on sand or soft surfaces

Info

Publication number: WO2005013741A1
Application number: PCT/ES2003/000416
Authority: WO
Inventors: Norberto Perea Lifante
Original assignee: Norberto Perea Lifante
Priority date: 2003-08-08
Filing date: 2003-08-08
Publication date: 2005-02-17
Also published as: AU2003258735A1; BR0318400A; EP1688054A1

Abstract

The invention relates to a shoe which is intended for sports activities on sand or soft surfaces. The inventive shoe is comfortable, light and adapts perfectly to the anatomy of the foot and ankle. Moreover, the shoe is made from breathable, moisture-repellent insulating materials. The shoe is intended to be worn for any activity on sand, such as beach football or beach volleyball, as well as for jogging or walking on the beach or on soft surfaces. In addition, owing to the design thereof, the shoe is heat and friction resistant both internally and externally as well as being water repellent externally.

Description

FOOTWEAR FOR SPORTS ACTIVITIES ON SAND OR SOFT SURFACES

Object of the invention

The object of the present invention, as expressed in the statement of this specification, refers to a type of comfortable footwear, light and that adapts perfectly to the anatomy of the foot and ankle, made with insulating materials that repel moisture and breathable, intended for sports activities on sand or soft surfaces, whose purpose is the realization of any activity that is practiced on the sand of beaches or soft surfaces, such as the practice of beach soccer, volleyball, walking, jogging -playa and, any other sports that are enjoyed on these surfaces, in addition this type of sports shoes by its configuration is resistant to heat and friction both inside and outside while said sports shoes externally repels water.

BACKGROUND OF THE INVENTION

Previously sports practices on the beach sand, soft, thin soils or similar surfaces, were performed barefoot without any footwear that covering the foot could protect it from certain aggressions that these surfaces present. The main inconvenience that occurs when practicing on the sand of the beach (without water), is that when the superheating of the sand arises due to the sun radiation, this heat is transferred to the person who is practicing some of the activities, through the feet, producing the typical discomfort of too hot sand, which makes it impossible to enjoy the practice of sports performed. Within the indicated disadvantages, encounters occur between the feet or in various parts of the body, either of the same person or with another person in their practice of sports activities, causing More or less painful and some serious injuries, as well as scratches, sprains of the toes. The main requirements that all types of footwear must meet are basically, protecting the foot and complementing it in its functions. It is in the field of sports footwear where these functions acquire a special meaning. So much so, that without his contribution there would be no sport as it is known today. The rapidity with which the game develops on the modern surfaces for the practice of tennis, the attainment, year after year, of records in athletics and the incessant appearance of new sports modalities would not be possible without the constant technicalization of sports shoes. To make a good design regarding sports shoes, we must take into account a series of general recommendations of footwear for outdoor activities, depending on the terrain and the temperature and humidity conditions determined in each case by the geographical area, will require footwear whose characteristics can vary considerably. However, from the point of view of biomechanics, a series of general indications should be observed which, as in the rest of the shoes, focus on four basic aspects. 1.-The adaptation of the footwear to the shape and functional dimensions of the feet, determined by the last with which it is consumed. 2.-The aspects related to the ability of the footwear to cushion the loads derived from the contact of the foot with the ground.3.- The adaptation of the footwear to the movements made by the foot and the ankle.4.- The aspects related to the friction between the sole and the surfaces. To partly solve these drawbacks, we resort to cover the foot by means of socks which prevents overheating something, but with discomfort for the game or practice of sports, because with the activity and movement tends to shift from its position , which means loosening the sock and its loss, or you can also use anklets, which is attached to the foot and ankle avoiding discomfort and possible to hit on these parts, but does not prevent the heating of the feet by contact with the sandy surface. As a possible solution, this type of sport is usually carried out with general sports shoes, with which the foot suffers less, neither by heating, nor by chafing or sprains, but the touch of the sand on the soles of the feet is lost, at the same time that the pain on other parts of the body, due to shock contact with these shoes is greater and therefore, with greater risk of injury. To solve all these inconveniences has been designed a novel footwear, which is comfortable, which adapts to the foot avoiding discomfort and possible injuries, but always respecting the pleasant sensation of walking on the sand since the design of this footwear is very flexible and lightweight , without losing the feeling of walking barefoot.

Description of the invention. The footwear for sports activities practiced on sand or soft surfaces, has a perfectly configured design that makes it comfortable, it is light, for the materials that form it, adapting to the anatomy of the foot and ankle of the athlete. The materials used are insulating, moisture repellent, breathable and flexible, so that their coupling to the foot of the athlete is perfect, presenting at its base a protection of the toe and a protection of the heel. With this, what is achieved is to keep the foot protected to prevent the sand from entering, making better the sports practices related to this type of soft surface, usually sand. By keeping the foot covered, direct contact between the feet is avoided, avoiding scratching and rubbing, both on the feet and other parts of the body due to the feet, the effect of kicking, while carrying the entire foot protected twists and more or less important injuries are avoided. This type of footwear for the practice of sports activities on sand or soft surfaces, is configured as a whole by: A.- Upper. B.- Base of the instep. C.-Assembly plant. D.- Mezzanine. E.- Floor or background. A.- The instep, is composed of the union of different pieces, covering the upper area of the foot, the ankle and in some models exceeding the ankle height, to avoid injuries that may be had by the practice of the aforementioned sports. The materials used are preferably a double lycra, (inside and outside), or similar to those used for this type of footwear, and between them a layer of latex foam is attached. This set of elastic materials yield when the foot is introduced and the foot located in the shoe contracts once, adjusting to it like a sock. The joints between the pieces, are reinforced with double stitching and nylon tape, which together with the type of materials that make it make a piece of instep, compact, resistant, and comfortable, which protects the foot from the sand and moisture , as well as any harmful agent and high temperatures. B.- The base of the instep, is composed of one or two pieces of a material reinforced with supports, which protect the parts of the foot more susceptible to being hit or chafed, such as the fingers, joints referring to the metatarsus-falanginas, maleólos and heel. This material despite being reinforced allows a minimum elasticity to be able to attach to the foot, adapting to it perfectly. The base part of the instep is made of materials, such as nylon, laminated rubber, natural rayon or similar materials. These materials are treated with a waterproofing that repels water a bit over all moisture and prevents it from penetrating the base of the foot. The hydrofugation treatment will be applied depending on the characteristics of each type of material used, being able to treat, in each case, the whole or only the reinforcements. The shape adopted by this piece is designed to protect the most sensitive areas, such as the elevation in the toe, elevation of the joints and in the heel. The union of the pieces have been made on the sides to avoid joints in the toe and heel, which can lead to friction and discomfort in the foot. C- Assembly plant, is the one that closes the cut of the instep on the part of the floor, its union is made by sewing, using the system of glove or sttobber, according to the different models. It is a union of the piece with the instep cut, it confers a closed shape, (like a sock), which adapts perfectly to the foot. The assembly plant is manufactured in an agglomerate of natural textile fibers bonded by adhesive, which are subsequently pressed, laminated and subsequently sewn transversely. This set of non-woven fibers bonded by adhesive gives the material great flexibility. D.- Mezzanine, is an injected piece, shaped anatomically and breathable. It is formed by a textile surface with latex support and a material that by injection forms an anatomical base that adapts to the plantar surface of the foot, which allows the foot to be isolated from the sand, giving it a greater sense of comfort. E.- Floor or bottom, This piece is manufactured as a whole by a series of materials where it contains more than 60% rubber, as well as more than 10% vulcasil, which makes it flexible, insulating, and shock absorber of the incidences of the terrain sufficiently hard, to avoid the abrasion that can produce the same. The shape adopted by the piece allows the most sensitive areas of the foot to be raised, such as: the toe part to protect the toes, the part of the toe to hold the arch of the foot in its inner area and on the back to protect the heel. All its surface is covered by small hemispheres that make small anchors on the surface of the sand to avoid slipping, giving a greater grip on it. For a better understanding of this descriptive memory and forming an integral part of it, some figures are attached in which the following has been represented with an illustrative and non-restrictive character.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows a perspective view of the footwear for sports activities on sand or soft surfaces, object of the present invention, where all its configuration is represented.

SUBSTITUTE SHEET RULE 26 Figure 2 shows an exploded perspective view of the footwear for sports activities on sand, where all the pieces that form said footwear are represented.

PREFERRED EMBODIMENT OF THE INVENTION

The footwear for sports activities on sand or soft surfaces is a type of comfortable, light footwear that adapts perfectly to the anatomy of the foot and ankle of the athlete. It is made with insulating materials that repel moisture and in turn is breathable. As shown in figures 1 and 2, the footwear for sports activities on sand, is configured by the following parts: A.- Upper. B.-Base of the instep. C.-Assembly plant. D.- Mezzanine. E.- Floor or background. The part that forms the upper part of the footwear, instep (2), is formed by the union of different parts, which covers or protects the upper area of the foot and ankle, exceeding in some models the height of the ankle. The materials used as a whole throughout the area (12), is double lycra, on the inside and outside, coupling between them a layer of latex foam. This set of elastic materials allows to yield when the foot is introduced and contracts once the foot is located in the sports shoes, adjusting to it. The joints between the pieces, are reinforced with double stitching and nylon tape, as well as the protection (7), in the upper part or entrance mouth of the foot. The base of the instep (3), composed of one or two pieces (3J) and (3.2) of material reinforced with supports that protect the parts of the foot most susceptible to being hit or chafed. The materials used in the realization of this piece are nylon, laminated rubber, natural rayon or similar materials. These materials are treated with a waterproofing that repels water a bit over all moisture and prevents it from penetrating the base of the foot. The hydrofugation treatment will be applied depending on the characteristics of each type of material used. Being able to deal with each case, its whole or only the reinforcements.

HAS SUBSTITUTION RULE 26 The design of this piece allows protecting the most sensitive areas, such as the toe lift (9). in the joints and in the heel (8). The union of the pieces is done on the sides to avoid joints in the toe (9), and in the heel (8). The assembling plant (5) is the one that closes the cut of the instep on the floor part, its union is made by sewing, using the glove or sttobber system, depending on the models. The assembly plant (5) is manufactured in an agglomerate of natural textile fibers by adhesives that are subsequently pressed, rolled and sewn transversely. This set of non-woven fibers and bonded by adhesives gives the material great flexibility. The mezzanine (4), is an injected piece, shaped anatomically and breathable. It is formed by a textile surface with latex support and a material that, by injection, forms an anatomical base that is adopted to the plantar surface of the foot, which allows it to isolate the foot of the sand, giving it a greater sense of comfort. The floor or bottom (6), is manufactured as a whole by a series of materials containing more than 60% rubber, as well as more than 10% vulcasil, which makes it flexible, insulating and as a shock absorber. the irregularities of the ground, as well as hard enough to avoid the abrasion that can produce the same. The shape that the floor or bottom piece (6) adopts allows raising the most sensitive areas of the foot, as they are. the part of the toe (10), to protect the fingers, the part of enfranque (13), to hold the arch of the foot in its interior area and in the back (11), to protect the heel. The outer surface (14), is covered by small hemispheres that make small anchors on the surface of the sand to prevent landslides. Once the nature of the present invention has been sufficiently described, as well as a way to put it into practice, we can only add that, as a whole and its component parts, it is possible to introduce changes in form, materials and arrangement, provided that when said alterations do not substantially vary the characteristics of the invention that are claimed below.

Claims

1.-Footwear for sports activities on sand or soft surfaces, it is a type of comfortable, light footwear that adapts perfectly to the anatomy of the foot and ankle, the materials used are insulating, repel moisture, are breathable and flexible, characterized in that said footwear is made up of the following pieces: the instep (2), the instep base (3), the mounting sole (5), the mezzanine (4), and the floor or bottom (6).

2.- Footwear for sports activities on sand, according to the first claim, characterized in that, the instep is formed by the union of different pieces (12), assembled, the materials being together in the entire indicated area of double lycra, or materials similar, coupling between them a layer of latex foam. The joints between the pieces are reinforced with double stitching and nylon tape, as well as the protection (7), at the top or inlet of the foot.

3.- Footwear for sports activities on sand, according to the first claim, characterized in that the instep base (3) is made of one piece or two pieces (3J) and (3.2) with material reinforced with supports. The materials used to make this piece are nylon, laminated rubber or natural rayon. A waterproofing treatment is applied to these materials that repels water a little over all moisture and prevents it from penetrating the base of the foot. The waterproofing treatment is applied depending on the characteristics of each type of material used, and can be treated in each case in its entirety or only on the reinforcements. The base of the instep presents an elevation (9), at the toe, at the joints and at the heel (8).

4.- Footwear for sports activities on sand, according to the first claim, characterized in that, the assembled sole (5), is the one that closes the cut of the instep on the part of the floor, its union is made by sewing, using the system glove or sttobber. It is made of a agglomerate of natural textile fibers by adhesives that are subsequently pressed, laminated and cross-stitched.

5.- Footwear for sports activities on sand, according to the first claim, characterized in that the mezzanine (4) is an injected piece, anatomically shaped and breathable. It consists of a textile surface with latex support and a material that by injection forms an anatomical base that adapts to the surface of the foot.

6.- Footwear for sports activities on sand, according to the first claim, characterized in that the floor or bottom (6) is manufactured as a whole by a series of materials where more than 60% is rubber, and 10% of vulcasil, which makes it flexible, insulating and a buffer against uneven terrain. The shape of the piece, floor or bottom (6), allows the most sensitive areas of the foot to be lifted, such as: the toe box (10), the engaging part (13), to hold the arch of the foot in its inner area and the heel part (11). The outer surface of the floor (14) is covered by small hemispheres (14.1), which serve as small anchors.