US 5,392,533 AGranted

Disposable shoe insole and method for making the same

AssigneeFlawa Schweitzer Verbandstoff-und Wattefabriken AG

InventorGerd W. P. Gerhartl

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Abstract

The insole contains an absorbent layer (1) which is arranged on a stabilization layer (2). The stabilization layer (2) is made of a fibrous and sealable material, the fibers running predominantly in the longitudinal direction of the insole. On the absorbent layer (1), there is a covering layer (10) which is likewise made of a sealable material. Depressions (20) are provided, the side walls (15) of which are formed by continuations (111, 112) of the material (11, 12) of the covering layer (10). The edges (13) of these side walls (15) are connected rigidly to the stabilization layer (2) so that, between the neighboring depressions (20), there are bridges (25) made from the material of the covering layer (10), which reinforce that section (18) of the stabilization layer (2) lying below. With the given and minimal thickness, the insole is remarkably rigid and durable.

Claims19

Dependent claims

A disposable shoe insole comprising:

a flexible absorbent layer;
a flexible bottom stabilization layer on which the absorbent layer is placed, the thickness of the bottom layer being considerably smaller than the thickness of the absorbent layer, wherein said bottom layer is made from a fibrous material having fibers which run predominantly in the same direction, said direction being substantially parallel to a longitudinal axis of said insole, so as to impart to the insole sufficient stiffness necessary to insert the same into a shoe;
A flexible covering layer disposed on the absorbent layer which is permeable to liquid and which is made from a fibrous material, the thickness of the covering layer being considerably smaller than the thickness of the absorbent layer, wherein the covering layer acts as a membrane to pull liquid through to the absorbent layer;
and
wherein holes extend from the flexible covering layer of the insole at least until the bottom layer, said holes having side walls which are formed as continuations of the material of the covering layer, a deepest portion of each hole being perforated and wherein a portion surrounding the deepest portion of each hole is connected to the bottom layer.

2 more elements

Dependencies are inferred from the claim text.