Shoe having a single-piece sole contruction and active air ventilation

Abstract

A shoe, and production methods for such a shoe, having a single-piece sole construction, in which efficient air circulation in the shoe and thereby directly on the foot of the user of the shoe is made possible with every step of the walking movement of the user.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS[0001]This present application is a national phase application under 35. U.S.C. § 371 of International Application No. PCT / EP2016 / 057079, filed Mar. 31, 2016, and claims the benefit of priority to European Patent Application No. 15 163 208.0 filed on Apr. 10, 2015, the entire contents of each of which are hereby incorporated by reference.FIELD OF THE INVENTION[0002]The present invention relates to a shoe having a single-piece sole construction, in which efficient air circulation in the shoe and thereby directly on the foot of the user of the shoe is made possible with every step of the walking movement of the user and, in particular, to a production method for such a shoe.BACKGROUND OF THE INVENTION[0003]A shoe consists of two main parts, namely the upper part, called the upper, and the lower part, the sole. The upper can comprise an inner upper (lining), intermediate upper (intermediate lining), and outer upper (upper leather). An upper conne...

AI Technical Summary

Benefits of technology

[0035]By means of relieving stress on the sole construction during a walking movement of a user, air is drawn into the air pump device through the first air channel, from outside of the shoe and above the upper sole part, and by means of placing stress on the sole construction during the walking movement of the user, air is expelled / pressed out into the interior of the shoe by way of the second air channel and the perforated insole, and, as this happens, the air pump device is compressed by a pump volume that corresponds to the amount of the expelled air.

[0036]The single-piece sole construction can consist of EVA, PU, PVC, TR, rubber or microcell, or can comprise one of these materials, and can be connected with the mounted upper directly, particularly without any further intermediate sole, by gluing or by means of injection-molding it on. The sole construction can have an elevated region (direction away from the ground contacted by the running surface), for example an elevated region on a heel, on a (lower) outer running surface in the region of the air pump device, particularly if this device is provided in the heel region. The pumping effect of the air pump device can be reinforced in that the outer running surface (which stands in contact with the ground, on which the user of the shoe according to the invention, with the sole construction, is running during the course of a walking movement) has such a raised region in the region of the air pump device, which region is configured for being pressed in the direction of the air pump device under stress from the foot of a user. The elevated region can not only contribute to efficient air circulation, but also, because of the shock-absorbing function of the air pump device, in combination with the elevated region, the running comfort can be increased. This air-spring shock absorption allows healthier running, which is gentler on the joints.

Problems solved by technology

However, it has been shown that efficient supply of fresh air is not possible in this way.

The disadvantage of this type of shoe consists in the lack of efficiency of the air circulation in the shoe, due to inefficient drawing in of air by means of the air pump device, in other words due to lack of a pumping effect.

However, it has been shown that the pump mechanism works so inefficiently, simply due to the stress on the air pump device caused in the shoe by the heel of a user during the walking movement, that no significant ventilation of the shoe interior is possible.

However, the ventilation device with the movable pump device is very complicated, in terms of design, and is very susceptible to failure from a mechanical aspect.

However, the production of this sole construction, in which the air pump device is integrated into an upper and lower sole part, is relatively complicated and complex.

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