ES1242852U - BALLET SHOE (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Ballet shoe, with a box (1) with an open end (13) and a closed end (14), an upper part (11) and a lower case (12) and a soul (2), detachable from the box (1), with a male element (21) that is inserted into the box (12), characterized in that the box (12) has flat walls (15), and lower floor (17), and a partition (16) flexible upper configured to rest on the male element (21) of the soul (2) with the user's weight. (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Ballet shoe

TECHNICAL SECTOR

The present invention refers to a ballet shoe, applicable in the manufacture of sports and dance elements, of greater versatility and ease of maintenance.

STATE OF THE ART

Ballet shoes with a series of more or less rigid objects inside them, such as boxes, souls, etc., are known in the state of the art. who assist the dancer in the dance. Examples are seen in US2008209761 or WO2009050371.

These solutions include a fixation between the box and the core that must be improved to offer maximum versatility, so that the core change is especially easy depending on the type of dance to be performed. In this way, the response response of the shoe can be achieved according to the preference of the dancer even at any time during training or function. In addition, it allows to replace the core if it is damaged or overused, without requiring the change of box. They can also substitute a different rhythm in each one of the feet, as well as choosing different types of soul and hardness for each one of them in a different way. In this way, the dancer has versatile and customizable tips.

The applicant is not aware of any solution that can be considered similar to the invention.

BRIEF EXPLANATION OF THE INVENTION

The invention consists of a ballet shoe according to the claims. Their different embodiments solve the problems of the state of the art and provide notable advantages.

This ballet shoe has, as is known in the art, a rigid box, with an open end, to introduce the wearer's foot, and a closed end. The box has also an upper part, which will contact the instep, and a lower box to insert a male element of a removable core. In a novel way, the box has flat side walls, an upper partition and a lower floor, without means for hooking the core. In exchange, the partition is made of flexible material, configured to rest on the male element of the core with the weight of the user.

In the preferred embodiment, the core comprises a lower step adjacent to the male element and preferably of a height equal to the thickness of the box floor. This avoids unevenness, increases the useful life of the core and facilitates flexing in the proper direction. After the step, the soul can understand a progressive thinning towards the free end of the soul. The free end is thinner and, consequently, more flexible. The length and slope of the progressive thinning section determines especially the flexibility of the core. The length of the section of constant thickness after the bottom step is also very relevant.

It is preferred that the shape and dimensions of the box be substantially equivalent to the shape and dimensions of the male core element so that the male element is properly nested and without grooves.

The surface of the male element or the interior of the box may have a non-slip coating that assists in maintaining the position while the shoe is not being used. For example, the soul may be covered in cloth. In general, the width of the box will correspond very precisely to the width of the male element, so that it fits snugly into the box.

Preferably, the upper part of the box has variable thickness, the thinner the closer it is to the open end of the box.

In a preferred embodiment, the side walls of the box converge as they move away from the open end. That is, the mouth of the box has a larger section than the bottom.

Other variants will be shown in the rest of the report.

DESCRIPTION OF THE DRAWINGS

For a better understanding of the invention, the following figures are included.

Figure 1: perspective (A) and front (B) view of an example box.

Figure 2: Bottom view (A) and perspective view (B) of an example of soul.

Figure 3: Longitudinal section of the box and anterior core assembly: (A) during the introduction or removal of the core; (B) with the user leaning on the shoe; (C) flexing at the box-core joint, at the middle point and (D) flexing the free end of the core, for example at the tip.

MODES OF CARRYING OUT THE INVENTION

Next, an embodiment of the invention will be briefly described, as an illustrative and non-limiting example thereof.

The embodiment shown in the figures comprises a shoe, with a sole and a covering (not shown), which has a box (1) and a core (2) made of material more rigid than the covering and sole, and which protect the user. The core (2) is generally covered by a template (3) to which it is fixed by a rubber (31) or the like. The template (3) is attached to the box (1) so that the core (2) can be changed without affecting it. Furthermore, it will be longer than the soul (2) (figure 4). The tip of the template (3) is inserted and folded into the end of the box (1) to protect the fingers.

A memory foam finger protector (4) is placed inside the box (1). Preferably it protrudes from the box (1) through the instep area to protect it from contact with the box material.

The box (1) of figure 1 has a vessel shape, with an upper part (11), a lower box (12) with a flat base, an open end (13) and a closed end (14). The box (12) is open towards the same side as the open end (13) and has two lateral walls (15), generally converging when moving away from the opening, an upper, flexible partition (16), and a floor (17) lower. The walls (15) and the floor (17) are flat, without protrusions. In any case, they may have notches or grooves to modify the stiffness of the box (1). The partition (16) can be flexible due to its material, or because it has a thinner or variable thickness. For example, it may have greater thickness-rigidity in the area near the closed end (14), where the fingers will be placed, and a thinner thickness in the area of the open end (13). In this way we minimize the step for the comfort of the foot and in turn allow the partition (16) to strap to exert pressure on the core (2).

The upper part of the box (1) can have perforations to facilitate perspiration of the feet and evacuation of sweat.

For its part, as shown in Figure 2, the core (2) has a male element (21) at one end, followed by a lower step (22) and a progressive thinning (23) towards the free end (24 ) opposite. The length and slope of progressive thinning (23) defines the response of the core (2) to flexion and is an important variable when designing it. The change in thickness in the core (2) between the male element (21) and the free end (24) can be more or less pronounced and, therefore, have more or less curvature. In this way the resistance is varied and makes it more or less easy to flex the core (2).

The box (12) is configured to receive the male element (21) of the core (2), and retain it inside by the weight of the user, which deforms the partition (16) and reduces the height of the box (12). Thus, the partition (16) itself fixes the core (2) when the shoe is in use. Once barefoot, it is extremely easy to remove the core (2) since nothing holds it in place. The size and shape of the male element (21) will normally be equal to the size and shape of the hole in the box (12) to prevent the partition (16) from resting in a vacuum, which affects the dancer's feeling and the useful life from the box (1). Preferably, the male element (21) fits tightly into the box (2), especially with respect to the walls (15), so that the core (2) does not move.

It is preferred to avoid sharp edges, for example in the corners of the box (12), to avoid the concentration of stresses that reduce the useful life of the pieces. It is seen in figure 2B that the base of the lower step (22), in contact with the male element (21) can also have a curvature. This curvature must be transferred to the shape of the box (12).

If desired, the surface of the male element (21) or the interior of the box (12) may have some non-slip coating: a silicone layer, a rough surface, etc.

The lower step (22) has a dimension equivalent to the thickness of the floor (17), so that when the core (2) is inserted in the box (12) no step is produced in the sole of the shoe (Figure 3B) . It can also be made larger or smaller than the thickness of the floor (17), mainly to adjust the desired stiffness.

The upper part (11) of the box (1) has variable thickness, the thinner the closer it is to the open end (13) of the box (1). In this way the flexibility of the instep can be increased.

Figures 3A-D show the operation of the invention. In figure 3A, the user places the core (2) in the box (1) inserting the male element (21) in the box (12). This introduction is clean by having flat walls (15). The user will choose the soul (2) based on their weight, the type of dance to be performed, their shoe size, their preferences, or for any other reason.

When the shoe is worn, the user's foot presses the partition (16) against the male element (21), keeping it in position (Figure 3B). Therefore, no movement occurs. The male element (21) can vary slightly in thickness to modify the flexion. In that case, fabric, EVA rubber ... can be added to ensure contact with the partition (16).

If the user performs a pointed position on the shoe, the contact between the core (2) and the box (1) prevents flexing in a first sense. Instead (Figure 3C), flexion in the opposite direction is favored by the cut between the floor (17) and the step (22). On the other hand, the flexing of the free end (24) of the core (2) is high since progressive thinning (23) has been overcome (Figure 3D).

If the core (2) is worn or you want to modify the response of the shoe, the user takes off her shoes and can automatically remove the core (2) for its replacement.

Although not shown, the shoe may comprise padding in the box (1) to accommodate the wearer's foot, as is already known. It also has a cover that creates the body of the shoe. The lower part of the core (2) can have a soft covering (25), for example EVA rubber. Likewise, the box (1) can have a soft front (26). The covering (25) has a damping function, for example in the jump.

In addition, it helps to raise the heel height so that it does not stay so low when it is supported. This covering (25) can be attached to the core (2) or to the shoe.

The dimensions of the boxes (12) will preferably be independent of the size of the shoe and, consequently, of the dimensions of the box (1), to facilitate versatility in the use of souls (2).

For each shoe size, different box models (1) may be arranged, with a greater or lesser width, more conical, more square, etc. However, all of them will have the same box (12) so that the souls (2) are interchangeable.

Claims (1)

1- Ballet shoe, with a box (1) with an open end (13) and a closed end (14), an upper part (11) and a lower box (12) and a core (2), removable from the box (1), with a male element (21) that is inserted in the box (12), characterized in that the box (12) has walls (15) and a flat bottom floor (17), and a partition (16) flexible upper configured to rest on the male element (21) of the core (2) with the weight of the user. 2- Shoe, according to claim 1, characterized in that the core (2) comprises a lower step (22) adjacent to the male element (21). 3- Shoe, according to claim 2, characterized in that the step (22) is of height equal to the thickness of the floor (17) of the box (12). 4- Shoe, according to claim 2, characterized in that the core (2) comprises a progressive thinning (23) after the step (22) towards the free end (24) of the core (2). 5- Shoe, according to claim 1, characterized in that the surface of the male element (21) or the interior of the box (12) have a non-slip coating. 6- Shoe, according to claim 1, characterized in that the upper part (11) of the box (1) has a variable thickness, the thinner the closer it is to the open end (13) of the box (1). 7- Shoe, according to claim 1, characterized in that the side walls (15) of the box (12) converge as they move away from the open end (13). 8- Shoe, according to claim 1, characterized in that the shape and dimensions of the box (12) are substantially equivalent to the shape and dimensions of the male element (21) of the core (2). 9- Shoe, according to claim 1, characterized in that it comprises a soft covering (25) on the lower part of the core (2). 10- Shoe, according to claim 1, characterized in that the box (1) has a soft front (26). 11- Shoe, according to claim 1, characterized in that the male element (21) fits tightly in width into the box (12). 12- Shoe, according to claim 4, characterized in that it comprises a section of constant thickness between the lower step (22) and the progressive thinning (23).