Method and inner sole for warming the foot of the wearer of...

Details Method and inner sole for warming the foot of the wearer of... Method and inner sole for warming the foot of the wearer of...

A - Human Necessities

43

B

36/34, 36/85

A43B 7/02 (2006.01)

Patent

CA 1320830

ABSTRACT In an inner sole (1) for a shoe, hollow members (3 - 6) filled with a fluid are provided, each of these members being designed as a tube (7) with closed ends (8, 9). A flow restrictor (10) is installed in the middle region of each tube (7) and divides the tubes (7) into part-cavities (11, 12). The flow restrictor (10) possesses restricting channels (21) through which the part-cavities (11, 12) are connected to one another. As a result of the fact that a pressure is exerted al- ternately in the heel region and in the toe region during walking, the fluid introduced into the part-cavities (11, 12) is pressed backwards and forwards through the restricting channels (21), heat being generated which is released to the environment and thereby warms the foot.

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