TECHNICAL FIELD

This invention of improvements introduced in rotary base applied to outsoles of general shoes is particularly a rotary base applied to the frontal part of outsoles of shoes, preferentially outsoles of kid's shoes as running shoes, ballet shoes, sandals, among others, allowing the children easily perform the rotary movements that simulate, mainly, the rotary movements of a dancer; such rotary base has two incased and complementary parts, being one of them in the form of sustainer support, and the other as a rotary disk that, when assembled in the sustainer support has a free rotation movement; such rotary base is applied in a cavity in the frontal part of the outsole, allowing the children perform, in a correct and free way, the usual movements of walking and/or running, and also allowing that, in a desired moment, the children perform the rotary movements through bending the feet, in a way to keep the body weight over the base of the tips, allowing, as consequence, the rotation through total support over the rotary base of each outsole. TECHNICAL BACKGROUND

As it is of public knowledge, several kid's shoes are been developed in a way to aggregate the act of walking and/or running with another instantaneous entertainment, allowing the children acquire a product with two different characteristics. Generally this concept of funny entertainment is applied to kid's shoes to awake the curiosity of the children, having several elements applied to the outsoles and/or uppers, such as, blinking lights, wheels, springs, drawings of cartoons, among others.

Such kid's shoes, besides presenting the referred funny elements, must present quality, comfort, safety and good ergonomic properties in order to the children do not suffer injuries or muscular fatigue.

However, some models of kid's shoes with these funny elements does not present adequate safety properties, such as, running shoes with wheels applied to the base of the heel that, in general lines, is configured by a thicker and rigid outsole and a heel with a cavity where a mechanism with a rolling element is applied. Among several troubles of this kind of wheeled shoe, the main one is the fact the outsole is more rigid and heavy to sustain the mechanism with the rolling element, obliging the children to adopt an incorrect posture, besides not presenting cushioning. BRIEF DESCRIPTION OF THE INVENTION

In order to provide improvements to the market, the petitioner has developed improvements to the rotary base applied to outsoles of general shoes where, more particularly, such rotary base is preferentially applied to outsoles of kid's shoes as running shoes, ballet shoes, sandals, among others, allowing the children easily perform the rotary movements that simulate, mainly, the rotary movements of a dancer.

Such rotary base has two incased and complementary parts, being one of them a fixed sustainer support and the other one a rotary disk that, when assembled in a cavity in the frontal part of the outsole allows the disk to perform, in contact with the soil, a free rotation of the support fixed to the outsole, thus assuring the rotary movement of the feet of the children.

Such sustainer support is fixed through any adequate way in the referred cavity of the outsole, such as glue, clamp or other way, being formed by a flat circular base from where a short orthogonal wall having a central hole is developed; it is coupled to the central axis of the rotary disk that, at its turn, is formed by a flat circular base with small height whose diameter is smaller than the diameter of the sustainer support. i

The external surface of the referred rotary disk opposed to the central axis presents multiple circular and concentric depressions forming an antiskid surface, while the face opposed to the concentric depressions presents a peripheral depression forming a stair, being that in the same flat surface there are at least two circular and concentric shoulders with a section preferably triangular and distinct heights forming points of support to the rotary disk. Thus, when the children desire to practice the rotary movements, they bend one foot in a way to sustain their body weight over one tip starting the rotary movement of the body through the impulse of the body over the rotary disk.

The main advantage of the rotary base is that it may be applied in any kind of outsole, not altering the main characteristics, such as, safety, comfort, anatomy, among others, allowing the child to walk and/or run in a correct way.

Another advantage is that the antiskid surface allows the children easily perform the rotary movements in a safe way, allowing the funny movements in any kind of surface. DESCRIPTION OF THE DRAWINGS

To complement the current description in order to obtain a better understanding of the characteristics of this invention and in accordance with a preferential practical realization of the same one, a set of drawings is attached where, in an exemplified but not limitative way:

• Figure 1 is an inferior and decomposed perspective view of the elements that compose the rotary base and respective outsole;

• Figure 2 shows an inferior perspective view of the assemblage of the rotary base in the outsole;

• Figures 3 and 3A show details of cut views of the assemblage of the rotary base in the respective cavity of the outsole; and

• Figures 4 and 5 show views of the rotary base during the movement.

DETAILED DESCRIPTION

In accordance with the Figures, the current invention is related to "IMPROVEMENTS INTRODUCED IN ROTARY BASE APPLIED TO OUTSOLE OF GENERAL SHOES", more specifically a rotary base (1) applied to outsoles (S) of shoes, preferably outsoles of kid's shoes as running shoes, ballet shoes, sandals, among others, allowing the children easily perform the rotary movements (MG) that simulate, mainly, the rotary movements of a dancer.

Such rotary base (1) is formed by two complementary parts that may be incased, being one of them called sustainer support (2) and the other one called rotary disk (3) that, when assembled compose a set that may be incased in a cavity (Sl), preferably in the frontal part of the outsole (S).

The sustainer support (2) has a circular and flat base (2a), from where a small annular orthogonal and peripheral wall (2b) is developed; from the central part of the internal surface of the flat base a short shoulder (2c) is projected, having a central hole (2d) where is coupled the central axis (3a) of the rotary disk (3) that, at its turn, is formed by a circular plate (3b), with small height, whose external diameter corresponds to the internal diameter of the sustainer support (2). The external surface (3c) of the mentioned rotary disk (3) presents multiple circular and concentric depressions (3d) composing an antiskid surface (AD); the internal face (3e) of the disk (3) presents a peripheral depression (3f) forming a stair and in the same face (3e) there are at least two circular shoulders (3g), which are concentric and with a section that is preferably triangular, in a way to form support points (PA) to the rotary disk (3) when it is in rotary movement.

Thus, when the children desire to perform rotary movements (MG) (see Figures 4 and 5), they bend one of the feet in a way to sustain the body weight over the tips, starting the rotation of the body through an impulse of the body over the rotary disk (3), while the sustainer support (2) skids over the disk (3) with the outsole (S).

It is evident that some details of construction and shape of the current invention may be altered, without escaping from the main principles of the invention that are clearly founded in the Claim Section, being understood the terminology used is only applied to found the description and is not to be considered as limitation.