Insole or inner sole with pressure ventilation

Abstract

Insole or inner sole which is intended for an item of footwear and is designed in the form of a pressure-ventilation sole (40a-e) such that a flexurally elastic pressure-exerting plate (10, 20, 30) rests on a lower sole, said pressure-exerting plate being displaceable by the user's body weight, when the user is moving, into transverse profilings in the interspace between the pressure-exerting plate (10, 20, 30), which is in the vicinity of the sole of the foot, and the lower sole and displacing the contained air volume in the manner of ventilation, wherein the lower sole of the pressure-ventilation sole (40a-e) is configured in the form of a corrugated structured sole (1) from a spring steel or a comparable plastic material, the transverse profiling thereof being designed in the form of acorrugated profile and being stable, and resistant to deformation, in relation to a compressive force acting vertically on the structured sole (1), and that the pressure-exerting plate (10, 20, 30), which is in the vicinity of the sole of the foot, can be displaced into the dimensionally stable corrugation valleys (12) of the structured sole (1) in the manner of a pumping and / or compression plate.

Description

technical field [0001] The invention relates to a shoe insole or insole with plenum according to the preamble of patent claim 1 . Background technique [0002] Known from DE 1 872 338 U1 is an insole which causes ventilation of the sole during walking movements, which can not only be fixedly incorporated into the sole structure (Sohlenwerk) of a shoe, but can also be used as a so-called insole . [0003] As in the case of the present invention, the plenum sole here should function in such a way that the layered interior between the sole and the sole of the foot is formed by alternating pressure processes and unloading processes during walking. Air circulation is produced in the sole, which on the one hand prevents uncomfortable perspiration and the unhealthy effects of lack of ventilation of the sole skin and on the other hand makes possible a pleasant cooling in hot weather. [0004] In this case, zigzag-folded foils, preferably made of plastic material, are inserted betw...

AI Technical Summary

Problems solved by technology

[0019] A further disadvantage is that the ventilation effect is provided by the compression of the rubber elasticity of the corrugated insert, which is linked to the disadvantage that the insert is subject to strong wear and that the elasticity of the corrugated insert deteriorates with increasing age. reduce

The wave-shaped structure thus converges and the ventilation effect is no longer achieved

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