Sole Structure of Footwear

Abstract

The present invention provides a sole structure of footwear which makes it possible for a user to walk in a special position such that a toe part is in a raised state, thus providing an exercise effect, and is constructed such that the inclination of the footwear can be smoothly changed forwards and backwards based on a metatarsal bone part, so that the user can naturally conduct exercise. To achieve the above purposes, the present invention comprises a main sole, which has an outline that approximately corresponds to an outline of a foot sole, a front cushion sole, which is coupled to a portion of the main sole which is ahead of the metatarsal bone part, and a rear cushion sole, which is coupled to a portion of the main sole which is behind of the metatarsal bone part.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates, in general, to sole structures of footwear and, more particularly, to a sole structure of footwear in which several sole parts made of different materials are three-dimensionally coupled together to form the sole of the footwear, so that, when a user wears the footwear, the sole structure provides a mountain climbing effect, as if the user were climbing an upward slope, and which provides superior wearing comfort and a pleasant feeling, and has sufficient shock absorbing ability, thus protecting the joints and ankle of the user.[0003]2. Description of the Related Art[0004]Generally, footwear serves to protect the feet of a user and to absorb shocks transmitted to the user when the user walks. The footwear includes a sole, which forms a bottom layer, and an upper, which is coupled to the sole to cover the foot of the user. Typically, the sole may have a single sole structure which is covere...

AI Technical Summary

Benefits of technology

"The present invention is a new type of footwear with a unique sole structure that allows the user to walk in a special way, with the toe part raised, which provides an exercise effect. The footwear is designed to smoothly change its inclination based on the metatarsal bone part, allowing the user to conduct natural exercise. It also ensures comfortable wearing and a pleasant feeling, with an external appearance that is not different from typical footwear."

Problems solved by technology

However, when the user wears the footwear having the conventional sole structure and walks, because only muscles that are normally used are used, it is difficult to obtain a special exercise effect.

However, in the case of the conventional exercise footwear, as a result of regarding only the exercise effect as being important, the wearing comfort of the footwear is poor, thus being uncomfortable to the user.

Furthermore, with regard to the design for enhancing shock absorbing ability, the conventional footwear has only a basic cushioning function, and thus the exercise effect is reduced, that is, an optimal balance between the exercise effect and wearing comfort is not realized.

In addition, there is a problem in that the shape of the footwear is too different from that of typical footwear to wear it at normal times.

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