Manufacturing method of insole and insole manufactured by the method

Abstract

A new manufacturing method produces an insole that fits a user's foot properly and that is manufactured in a shorter time at a lower cost. The manufacturing method includes steps of: acquiring information on a user's foot by a foot printer; selecting a basic part 2 based on the acquired information; attaching various modification parts 3 to the selected basic part 2 arranged in a trial shoe 1; determining whether the trial insole including a combination of the basic part 2 and modification parts 3 is properly fitted to the user's foot in walking and standing statuses; repeating the steps from selecting to determining until the most fitting combination of the basic part and modification parts is determined; reproducing the determined trial insole in a three-dimensional CAD based on the most fitting combination; and manufacturing an insole by cutting out material based on the reproduced trial insole in the three-dimensional CAD.

Description

[0001]This application claims the benefit of Japanese patent application No. 2013-137678, filed Jul. 1, 2013, which is hereby incorporated by reference in its entirety.FIELD OF INVENTION[0002]The present invention relates to an insole fitting to a user's foot properly and a manufacturing method of the insole in a short time at a low cost.RELATED BACKGROUND ARTS[0003]In these days, the importance of the insole has been realized more and more. The insole is used in various applications such as sports, treatments for injuries caused by sports, measures against hallux valgus, mitigations for lumbar pain, knee pain and the like. In order to use the insole in these applications, the insole itself should be fitted to user's foot properly. Further, in order to attain effects in the above-mentioned applications, functions and a shape of the insole should be selected and adjusted properly. And in order to maintain such effects, the insole should be made of materials having hardness more than ...

AI Technical Summary

Benefits of technology

[0011]Since it is not necessary to employ expensive devices such as a three dimensional scanner and the like for manufacturing the insole by the present invention, and since manufacturing time of the insole is reduced without wasting materials, the insole which properly fit to the user's foot can be supplied for a short time at a low cost.

[0012]In addition, since the user can judge functions of the insole in standing and walking statuses by wearing the insole at a time when user's foot is measured, the most effective and fitting shape can be determined, so that less modifications are required at a time when the insole is delivered to the user.

[0013]Further, since the insole by the present invention is manufactured based on CAD data and since a plurality of products having quite the same shape can be cut out from materials, later the insoles can be reproduced easily at a low cost.

Problems solved by technology

However, commercially available conventional insoles are neither always fitted to user's feet nor sufficient in their functions.

Since easy type order to made insoles, such as insoles manufactured by applying soft pads to bases or by applying user's feet to heated sheets have not sufficient durability, they cannot bear long term uses.

The above-mentioned problems arise remarkably, particularly when the insoles are required to support loads steadily or when the insoles are used by highly active users.

Since the above-mentioned fully made to order manufacturing methods require a lot of time and wasted materials, and use expensive machines, there are problems that manufacturing costs are increase in addition to requiring long time to manufacture such products.

Further, in these methods there is other problem such that users cannot confirm whether the manufactured insoles function properly, have no problems or have proper fitting feelings or not for the users at a time when the data are determined or converted.

In some cases when the user's foot feels pains by wearing the insole, or does not fit to the insole, the insole has to be modified or reproduced, which lead to a cost increase and a delay of delivery time.

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