CONSTRUCTION PROVISIONS IN SPORTS SHOES THAT CAN BE USED FOR WALKING OR SKATING BY MEANS OF A BEARING UNIT
THE HEEL PORTION
The present utility model is related to constructive provisions in a sports shoe, more specifically a tennis shoe and the like, specifically one provided with a rolling device that allows the user to benefit from practical and dual-function solutions, that is, shoes can to be used for skating by means of skates provided on the heel portion or as a regular shoe for either running or walking, and for this purpose the sole is provided with one or more cavities that are dimensioned to receive fixedly by adhesive or another suitable means, at least one monoblock or base part with a cavity and coupling means for a bearing assembly; the coupling is performed by a quick coupling adjustment and comprises a laminar lock, wherein the axle assembly and at least one wheel is mounted; the laminar lock is provided with quick locking means together with complementary means on the inner surface of the cavity of the base part.
BACKGROUND As is widely known, skating has always been considered not only good entertainment, but also good physical exercise. In other more particular cases, skates are used as a means of transport or even as an element that provides agility when used by some hypermarket employees, for example, to provide a better and faster customer service. In general, the more conventional skates had a platform or boot-like footwear, the lower base of which was provided with four wheels, a pair of front and parallel wheels and a pair of rear and parallel wheels duly fixed to metal bearings. More recently, another type of skates model known as in-line skates has replaced the conventional model making the use of skates even more popular in view of the lightness and dexterity of movements provided by these. The model of skates is configured to the format of a specially designed boot and provided with at least four wheels made of nylon or other similar material and arranged longitudinally below the surface of the shoe. Both skates mentioned above are suitable for use in salons and sports courts and when the soil conditions are particularly smooth. However, when the conditions of the floor are not adequate, that is, in cases of earth floor, paved floor and other types of floor, traditional and / or inline skates can not act as a means of bearing as this would cause problems to the user. To solve the drawbacks mentioned above, some manufacturers, mainly foreigners, have developed sports shoes similar to tennis provided with a sole made of rubber or other similar material, the constructive provisions of which allow to use it as a common shoe or as skates and for this purpose the lower surface of the sole includes one or more rolling bearings of the type used in skates, which may be either separable or retractable, so that the shoe may be used either for walking or running, or may be positioned in such a way as to allow skating over the total length of the sole or only over the heel portion. Thus, after a research on the subject matter described above, a number of prior art documents have been found, such as, for example, US Pat. UU No. 6308964 and more recently U.S. Pat. U. U.S. 6450590 and U.S. Pat. UU No. 6764082 related to shoes similar to ten is, the soles of which are provided with at least one embedded housing designed to include at least one wheel or bearing bearing which in a first mounting mode can act as skids to be used on Smooth floor surfaces and in another mounting mode, either by removing or retracting the wheel, the shoe can be used as a conventional tennis shoe, that is, the user could walk on various irregular floor surfaces, such as earthy, cobbled, sandy floor surfaces, etc. However, by reviewing some of the various documents found in the prior art, some drawbacks have been noted such as the action of retraction of the bearing of some models that is carried out by means of complex articulation mechanisms and even then they remain exposed to the penetration of dirt, soil, sand, etc. , and for the rolling bearings that are to be used again as rolling media, the user is forced to clean them or even take excessive care, so that the articulation and the wheels remain in operation and without any problems of locking . In addition, some such rolling bearings require a certain type of cushioning means and for this purpose spring and lever means are employed which would make mounting the difficult device in the openings in the sole of the tennis shoe. Another big drawback is related to the final cost of the double function shoe, this double function is related either to the rolling on the heels or to use the shoe either for walking or running. Due to the complex articulation and fixing devices of the rolling bearings, the manufacturer will pass user-related costs, which will discourage the vast majority of people from acquiring such intelligent footwear. Other simpler construction models can be found in German Patent DE 254775 of 1 912, US Pat. UU No. 3,306,623 of 1967, or the Brazilian Pl 0009459-5 of 2000. Such Patents are related to soles of footwear having at least one opening, in which a piece is embedded that defines side recesses that can receive the ends of an axis wherein at least one wheel or a sphere is mounted centrally. Although it seems to be of a simple construction, both the German and the Brazilian model depend on some parts to be assembled, such as springs, closures and others. The Brazilian model, in particular, depends on a tool specially developed to extract the wheel and axle assembly from the support piece when the shoe is to be used for walking or running.
B REVE DESCRIPTION OF THE BJ ETO Attending to add improvements to the previous technique and mainly to allow more and more users to benefit from the practical and dual function solutions in footwear, the Applicant expert in the technique of footwear manufacturing has developed a sports shoe that can be used either as skates, preferably on wheels or as a conventional sports shoe, ie for walking or running, and for this purpose the sole is provided with one or more accommodations that are sized to receive adjusted and fixed, by means of adhesive or other suitable means, at least one monoblock or base part with a cavity and coupling means of a bearing assembly comprising a leaf, axle and wheel closure; The coupling between the base and the bearing assembly is done by quick coupling adjustment, assembly and disassembly of them is extremely easy, either by an adult or even by a child. To remove the bearing assembly, to use the walking or running shoe, it is sufficient to press the free ends of the locking or laminar closure to disassemble the complete coupling assembly provided on the base part, after this the base part can or You may not receive a conventional cap that will remain aligned with the surface of the sole.
DESCRIBING THE FIGURES In order to better understand the characteristics of this utility model and in accordance with a preferred modality thereof, a set of Figures has been annexed to the description, which is not intended to be limited but to be an example only of its scope, as follows: Figure 1 is an exploded and bottom perspective view of the members comprising the device with the rolling unit on the heel applied to the sole of a tennis shoe type. Figure 2 is a bottom perspective view of a fully assembled bearing device. Figure 3 is a bottom view of a conventional shoe sole provided with the bearing unit in question. Figure 4 is a side view in partial section illustrating a unit properly fixed in the shoe housing and level with respect to the surface of the sole of the shoe. Figure 5 shows a cross-sectional view of the unit fixed in the shoe sole housing; and Figure 6 shows a view with the same section of the previous Figure, but illustrating the laminar closure assembly, axle and wheel being extracted from the monobloc piece, so that the shoe can be used as a tennis shoe.
DETAILED DISCLAIMER According to the Figures, this utility model is related to a CONSTRUCTION PROVISION IN SPORTS SHOES THAT CAN BE USED EITHER TO CAMINO OR TO PATIO THROUGH A BEARING UNIT ABOUT THE PORTION OF THE HEEL, more particularly the sports shoe (CE) is a tennis-type shoe or the like, the lower surface (S) of the shoe sole is provided with a rolling device, preferably applied to the heel portion, such device is defined by at least one cavity (C) in which a bearing device (1) can be installed, such a bearing device comprises at least one axis (E) with at least one bearing (R) of bearing. According to this utility model, the new construction assembly comprises a bearing device (1) with a base (2) that is imensed to be coupled in the cavity (C) of the sole (S) of the shoe and secured to the same by means of adhesive, thermal welding or other appropriate means, so that the base (2) will remain fixed to the cavity (C); the base is defined by a plate (2a) of wide thickness, the lower edge (2b) from which two portions (2c) with parallel walls protrude, each one is provided with a central recess (2d) that can receive, respectively , the ends (e2) of the shaft (E) when the device is in the assembled position. The lower face of the base (2) has a quadrangular cavity (2e) and a transverse linear recess (2f), provided on the inside faces of the parallel walls (2c) and on the bottom (2g) of the cavity; on the internal faces of the walls (2c) at least one recess (2h) is provided for a quick coupling of the bearing assembly (3). The bearing assembly (3), also a novelty, comprises a laminar closure (4) having a width dimensioned to rest against the transverse recess (2f) and which is bent in the form of an inverted "U", defining two branches ( 4a) parallel, each is provided with an orifice (4b) that can be passed through the axis (E); the branches have at least one protrusion or transverse projection (4c) that is dimensioned so that it fits in the respective recesses (2h) provided in the base (2). The shaft (E) has a portion (e 1) where the wheel or the bearing (R) is mounted, which is held in the center of the shaft (E) by means of two locking rings (4) which they rest against recesses (e3) with the ring shape of the axis (E). The transverse protrusions or projections (4c) and the recesses (2h) define means for quick coupling and locking of the laminar closure in the cavity (2e) of the monobloc part (2). To remove the complete bearing assembly (3) from the base (2), for the purpose of using the shoe either for walking or running, the laminar closure (4) is provided with spaced ends apart from the branches (4a) pressed one against the other to uncouple the adjustment formed by the elements (2h / 4c). The cavity (C) that remains exposed after the bearing assembly is removed can receive thereon an appropriate cap (not shown) that will remain aligned with the outer surface (S) of the shoe sole. It is to be understood that the illustrated illustration provides a cavity (C) only and the respective improvement that is part of the same as the device (1); however, the same device comprising the base (2) and the bearing assembly (3) can be formed in appropriate sizes and dimensions to meet the requirements for a shoe sole having more than one cavity (C), such as for example a shoe sole with two posterior cavities, or in a front cavity aligned with a posterior cavity and other possible combinations. It is also to be understood that the protrusions (4c) and the recesses (2h) can be replaced by other similar shapes, such as hemispheres, pivots, among others. This utility model for new dispositions introduced in a sports shoe, more specifically in a tennis shoe and the like, which allows both to skate on the heel portion and to use the shoe, either walking or running, fully satisfies the criteria set forth for it, that is, the combination and replacement of the elements of the prior art in a new form or assembly, resulting in a functional improvement in the use or manufacture thereof.