Shoe sole comprising a footbed

Abstract

A shoe sole with a footbed (5) is described which forms a flexible foot support. In order to provide advantageous constructive conditions it is proposed that the foot support consists of a flat structure (4) receiving tensile forces which is held in a freely suspended manner in a frame (1) defining the edge contour of the footbed (5).

Description

1. FIELD OF THE INVENTION[0001]The invention relates to a shoe sole comprising a footbed which forms a flexible foot support.2. DESCRIPTION OF THE PRIOR ART[0002]The footbed of shoe soles is provided to support the foot by avoiding local pressure spots. It is known for this purpose to arrange the footbed with a foot support which is adapted to an average anatomical shape of the foot and which is provided in a sufficiently elastically flexible way in order to compensate any deviations in the individual shape of the foot of the user of the shoe from the average shape of the foot. A further adjustment of the foot support of a footbed to an individual shape of the foot will be achieved when the foot support consists of a cushion which is provided at least partly with a gel-like filling because the footbed will rest under even pressure on the foot in the region of the cushion. It is disadvantageous however that such a footbed substantially loses the support of the foot for compensating a...

AI Technical Summary

Benefits of technology

[0003]The invention is therefore based on the object of providing a footbed for a shoe sole which advantageously allows the adaptation of the foot support to an individual anatomical shape of the foot without having to omit a respective support of the foot.

[0005]Since as a result of this measure the foot support of the footbed does not rest in a conventional manner on a resilient pressure cushion, the disadvantages in connection with such a pressure cushion support—either as a result of a cushion filled with a pressure medium or as a result of elastic padding—can be avoided in a simple way. With the free suspension of the flat structure in a frame which results in the foot support, any loading of the foot support leads to a tensile stress on the flat structure clamped at the edge, which needs to absorb the respective tensile forces for this purpose. The flexibility of the flat structure allows an adjustment to the individual shape of the foot of a user of the shoe, with a preliminary shape of the flat structure which causes the necessary support of the foot and is suspended by said frame being ensured by the spatial progression of the frame in the connecting region with the flat structure of the foot support according to the progression of the footbed at the edge side.

[0007]The flat structure of the foot support which is freely suspended by the frame can be provided with different configurations because it is especially intended to enable the adaptation to the individual shape of the foot by sufficient flexibility of the flat structure and to remove the tensile stresses originating in the flat structure from the frame which are caused by the weight load of a user of the shoe. Cuts made from leather, foils or textiles can be used for example. Especially advantageous constructive conditions are achieved however when the foot support consists of a textile flat structure, especially a knitted fabric, because knitted fabrics are not only air-permeable, but also provide resilience which in the range of larger tensile stresses is advantageous for the adjustment of the foot support to an individual shape of the foot without impairing the removal of tension on the frame. Moreover, knitwear and knitted fabrics can be produced in sections with different strength and deformation properties in one or several layers, providing an additional influence on the supporting and adaptation effect of the foot support.

Problems solved by technology

It is disadvantageous however that such a footbed substantially loses the support of the foot for compensating any malpositioning of the foot.

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