JPH0824007A - Inner boot of sport shoes - Google Patents

Abstract

PURPOSE: To give flexibility to an inner boot keeping rigidity of the inner boot of a sport shoe. CONSTITUTION: This inner boot includes a lower part 102 to act on a foot, an upper part 103 to act on a tibia region, and a wing 110 is included in a side range neighboring a heel. The wing 110 provides a region where the lower part 102 and the upper part 103 overlap and mutually slide.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to inner boots for sports shoes.

[0002]

2. Description of the Prior Art One of the current problems in the production of inner boots for sports shoes, in particular ski shoes, is, as is known, related to the need to combine two conflicting requirements. In order to limit the local pressure exerted on the leg by the closing lever of the shoe, the surface of the inner boot must be made relatively stiff to distribute the stress, thereby avoiding local pressure on the tibia.

On the other hand, the inner boots must be relatively flexible so that the user can perform the required exercises. The solutions that have been adopted so far are
In many cases, the structure is considerably complicated, and the inner boot is weakened, which is a drawback. For example, the inner boots disclosed in U.S. Pat. No. 4,499,671 have a relatively rigid quadrant or cuff,
It enables even distribution of pressure stress. Further, in order to provide flexibility, a soft side insert is provided on the side of the boot so that the inner boot can swing.

This solution requires an assembly of various parts and is therefore complicated from a manufacturing point of view. Also, the flexible lateral insert may be damaged by traction during use. Another conventional solution for providing flexibility, such as that described in U.S. Pat. No. 4,723,364, has a front quadrant and, in fact, this front quadrant In the lower part,
A recess is provided to allow good flexibility. However, this solution has poor protection performance due to the provision of the recess.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to have a rigid portion that distributes the pressure stress applied to the inner boot, and to protect the structure of the inner boot without distortion. An object of the present invention is to solve the above-mentioned drawbacks by providing an inner boot of a sports shoe that can provide good flexibility without providing a region having poor performance.

Within the scope of the above objects, it is a particular object of the present invention to provide an inner boot in which the quadrants can be arranged vertically, thereby facilitating walking. Another object of the invention is to provide an inner boot in which the total stress is distributed in an optimal manner so as to maximize user comfort.

[0007] Another object of the present invention is to provide an inner boot in which reliability and safety in use can be ensured to the maximum due to specific structural characteristics.

[0008]

The above and other objects which will become apparent from the following description are achieved by an inner boot of a sports shoe having a lower part acting on the foot and an upper part acting on the tibial region. It The inner boot is characterized in that it comprises at least one wing in a lateral region adjacent to the ankle, which wing provides a region in which the lower part and the upper part overlap and slide on each other.

The features and advantages of the present invention will become apparent from the detailed description of the embodiment of the inner boot of a sports shoe, which is shown by way of non-limiting example in the accompanying drawings.

[0010]

In the region provided by the wings provided in the lateral region of the inner boot, the lower portion and the upper portion of the inner boot overlap each other and slide with each other.

[0011]

1 is a perspective view of an inner boot of a sports shoe according to the present invention; FIG. The inner boot 1 comprises a lower part 2 acting mainly on the region of the foot and an upper part 3 acting on the tibial region. A heel portion 4 is fixed to the rear portion of the lower portion 2.

A feature of the present invention resides in the provision of an insert, ie, an element for stiffening the superior portion, particularly the anterior lateral region of the tibia, for good stress distribution. Flexibility is provided by the wings located in the lateral regions adjacent to the heel. This lateral region forms a region in which the lower part 2 and the upper part 3 overlap and slide on each other.

As shown in FIG. 1, the wing indicated by reference numeral 10 is provided in the lower portion 2 and extends upward, and is accommodated in a recess 11 formed by the upper portion 3. In this way, the inner boot is divided horizontally, thereby forming a region in which the upper quadrant is flexible without resisting the pressure in the stress distribution.

Thus, the inner boots provide a great deal of comfort and good flexibility without distortion of the components of the inner boots. 5 and 6 show an inner boot indicated by reference numeral 1 ', which is particularly used for a front or central insertion type boot, and the inner boot 1'is denoted by the reference numeral. A flap, indicated at 20, is provided. These flaps 20 extend from the lower part indicated by the reference number 2 and are laterally adjacent to the quadrant part indicated by the reference number 21. Also, the lower part 2 and the rear quadrant 2
A bellows-like portion 22 intervening in the rear region of 1 provides the connector. This connector is conceptually similar to the one created earlier, except that the rear part of the quadrant is swingable.

This solution allows the boot to be placed vertically. That is, it is possible to achieve a position in which the tetrahedron or the cuff portion is vertical, and to walk sufficiently. 7 and 8 show an inner boot designated by the reference numeral 1 ". In the inner boot 1", an upper portion designated by the reference numeral 3 has a side reinforcing body 30, and the side reinforcing body 30 is provided. 30 delimits the central portion 31. The action of the fixed reinforcement does not extend to the central part 31. In addition, the movable tibial reinforcement 32 can be accommodated in the central portion 31. The tibial reinforcement 32 comprises an extension 33 in the lower region, which extension 3
3 is connected to a groove 34 formed in the lower part of the tetrahedron.

Thus, the tibial reinforcement 32 is effectively shielded from the inner boot structure, thus providing greater flexibility while maintaining comfort when the tibia is placed in front. Become. Further, the mobile tibial augment 32 is easily removable and can optionally be replaced with another having other characteristics.

9 to 12 show the inner boot 1 described above.
2 illustrates an inner boot 101 that is substantially similar to. The inner boot 101 has an upper portion 103, a lower portion 102, and a heel portion 104. Lower part 102 is wing 1
The wing 110 can be housed in a recess 111 provided in the upper portion 103.

Further, the inner boot 101 is provided with an inner elastic lining 112, and the lining 112 connects the upper portion 103 and the lower portion 102 to increase the structural rigidity. From the above description, it is clear that the present invention achieves the intended purpose. In particular, the inner boot can be provided with a substantially rigid portion that evenly distributes stress without disturbing the normal flexibility of the inner boot, and can be easily adapted to various operating conditions and walking.

The inner boot of the present invention can be variously modified, and all the modifications are included in the concept of the invention.
Furthermore, the details can be exchanged with technically equivalent elements.
In practice, the materials used, the shape and the dimensions may comply with the requirements.

[0020]

As described above, the inner boot of the sports shoe according to the present invention includes at least one wing provided in a lateral region adjacent to the heel, and the at least one wing includes a lower portion and an upper portion of the inner boot. The parts have a rigid part that distributes the pressure stresses applied to the inner boots, as well as providing a region in which they overlap and slide with each other, and without causing distortion in the structure of the inner boots, and Good flexibility can be imparted without providing a region with poor protection performance. Further, according to the inner boot of the present invention, since the quadrants can be arranged vertically, it is possible to walk easily, and the total stress is optimally distributed, so that the comfort of the user can be maximized. Furthermore, the inner boot of the present invention can maximize the reliability and safety in use.

[Brief description of drawings]

FIG. 1 is a first inner boot showing the heel pad in a disassembled state.
It is a figure of an example.

FIG. 2 is a view of the inner boot shown in a state of being bent forward.

FIG. 3 is a rear perspective view of the inner boot.

FIG. 4 is a rear perspective view of the inner boot in which the configuration of the upper portion is different from that in FIG.

FIG. 5 is a diagram of a second embodiment of an inner boot, particularly for a front or center insert boot.

FIG. 6 is a view of the inner boot shown with the quadrants tilted rearward for vertical boot placement.

FIG. 7 is a diagram of a third embodiment of the inner boots.

8 is a diagram showing a removable tibial augment used in the inner boot shown in FIG. 7. FIG.

FIG. 9 is a perspective view of an inner boot according to another aspect of the present invention.

FIG. 10 is a view similar to FIG. 9 showing the forward quadrant.

11 is a rear perspective view of the inner boot of FIGS. 9 and 10. FIG.

FIG. 12 is a view similar to FIG. 11 showing the quadrant tilted forward.

[Explanation of symbols]

 2, 102 Lower part 3, 103 Upper part 10, 20, 110 Wing 11, 111 Recess 20 Side flap 21 Quadrant part 22 Bellow-like part 30 Side reinforcement (element for making upper part rigid) 31 Central part 32 Tibial reinforcement (fixed reinforcement) 33 Extension 34 Groove

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Ilario Franco Italy 31031 Caerano Esse. Marco (Provence of Treviso) Via Regina Cornaro 13 (72) Inventor Pietro Martignano Italy 31044 Monteverna (Provence of Treviso) Via Dani El 6 (72) Inventor Leopold Cervi Italy 31040 Musano di Tre Vignano (Provence of Treviso) Via Campagnola 6

Claims (6)

[Claims] 1. An inner boot for a sports shoe comprising a lower part acting on the foot and an upper part acting on the tibia region, the at least one wing comprising at least one wing provided in a lateral region adjacent to a heel. The inner boot of a sports shoe, wherein the lower portion and the upper portion provide a region in which they overlap each other and slide with each other. 2. Inner boots for sports shoes according to claim 1, characterized in that elements for stiffening the upper part are provided in the anterior and lateral regions of the tibia. 3. The inner boot for sports shoes according to claim 1, wherein the wing protrudes upward from the lower portion and is accommodated in a recess formed by the upper portion. 4. An upper part with an open front, said upper part forming a quadrant at the rear, said quadrant being a bellows-shaped part and a lower part below the rear quadrant. Inner boot for sports shoes according to claim 1, 2 or 4, characterized in that it is connected to the lower part by means of a mutual overlap part formed by lateral flaps which overlap the part. 5. The upper portion has lateral reinforcements delimiting the central portion such that the effects of the fixed reinforcements are not exerted, and a mobile tibial reinforcement is removed within the central portion. The sport according to claim 1, wherein the tibial reinforcement is freely accommodated, and the tibial reinforcement has an extension in a lower region that is connected to a groove provided in a lower portion of the quadrant. Inner boots in shoes. 6. The inner boot of a sports shoe according to claim 1, further comprising an inner elastic lining adapted to connect the upper portion and the lower portion.