Composite footwear insole, and method of manufacturing same

Abstract

A composite footwear insole has a front portion (2) designed to interact with the foot at the metatarsal region and at least partly at the plantar arch, and a rear portion (3) designed to interact with the heel. The rear portion (3) has at least one layer (4) of gel material whose size is at least substantially equal to that of the rear portion (3) to uniformly support the heel and absorb stresses acting thereon.

Description

technical field [0001] The present application relates generally to applications in the field of footwear, and in particular to a synthetic insole as defined in the preamble of claim 1 , and to a method of manufacturing the same. Background technique [0002] As we all know, the heel is the part of the foot most exposed to shock and impact stress during walking. For this reason, in many footwear and insole products, a shock-absorbing member is provided in the heel area. [0003] In particular, EP-A-1166671, WO-A-0024283, WO-A-9831249, US-A-2002092203, US-A-5718063 all disclose insoles having a polymeric base material and at least one cavity or An opening in which one or more gel inserts are placed. Typically, at least one gel insert is placed on the rear of the insole at the heel region of the wearer to absorb shock from the ground. [0004] The disadvantage of this construction is that the insert is small in size and causes an uneven distribution of mechanical properties...

AI Technical Summary

Problems solved by technology

[0008] Disadvantages of this structure include that its interaction between the gel pad and the matrix and between the gel in the pad and its walls affects the shock-absorbing properties of the gel and its ability to deform, thereby Reduced stress absorbing effect

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