Footwear

Abstract

A footwear comprises a sole constituted by at least an outer sole and a inner sole, it is of the type without heel, capable of support the foot substantially parallel to the ground or with the ground contacting surface of the heel raised of not more than 20 mm compared to the metatarsal ground contacting surface, and has a configuration such as to form a bending at the metatarsal-phalangeal joint, with the phalangeal portion elastically deformable downwards.

Description

TECHNICAL FIELD[0001]The present invention fits in the technical field of footwear.[0002]More specifically, the invention relates to a shoe having a peculiar conformation of the sole with a front portion bent upwards.BACKGROUND ART[0003]In the footwear industry it is widely known the need to design footwear which will allow and help the correct execution of the stepping activity and in general the maintenance of a correct posture. It is common knowledge the fact that footwear with soles too stiff, or with heel too high can give rise with long use to postural problems since, in fact, do not allow the correct execution of the step which, as well known, must be characterized from a correct succession of ground contacts and oscillations of the limbs that allow the correct transfer of loads from a limb.[0004]In general, sport footwear are those in which greater attention is paid, at the design stage, to the respect of the needs described above with the result of producing footwear with e...

AI Technical Summary

Benefits of technology

The invention is a shoe with a flexible upper that helps to bend at the knee joint when walking or running, providing support without reducing comfort. The shoe has a thin, flexible midsole that helps to make a stable and elastic step. This design helps to make a shoe that is both comfortable and efficient.

Problems solved by technology

It is common knowledge the fact that footwear with soles too stiff, or with heel too high can give rise with long use to postural problems since, in fact, do not allow the correct execution of the step which, as well known, must be characterized from a correct succession of ground contacts and oscillations of the limbs that allow the correct transfer of loads from a limb.

Although the described sole has obvious advantages in facilitating the correct setting of the step, however, is rather bulky and heavy, thus requiring to be associated to an upper that ensures a stable positioning of the foot on the sole along its whole extension.

In addition, in footwear with open upper, such as sandals or slippers, it is particularly difficult to study soles, suitable to favour the correct execution of the stepping activity since, even for aesthetic reasons, the sole is usually of rather reduced thickness and the upper is of little help in maintaining a correct positioning of the foot on the sole.

In fact, in this type of footwear there is the problem of keeping the foot correctly positioned on the sole and bound to it during all phases of the step.

Thanks to the low elastic return force assured by the elastic material of the sole or the insert, when the foot and therefore the weight of the body are supported on the sole this exerts a very limited resistance to bending, therefore it flattens completely.

The footwear described, although it is able to increase the comfort of use of footwear with open upper, as it facilitates the maintenance of a contact between the rear of the sole and the heel during all stages of the stepping activity, it does not solve the problem of providing a real assistance to the stepping activity since, because of the low coefficients of bending elasticity of the sole, the entity of the forces exerted by this on the sole of the foot, which are responsible for providing the activity of the path, are substantially irrelevant.

The solution to the problem of increasing the elastic response of the sole to the stresses which are due to the support of the foot can not be limited to selecting a suitable material as the increase of rigidity of the sole tends to cause problems of comfort and stability of support of the foot, whose solution must be sought.

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