Boot with frictional heat generator and forced air circulation
First Claim
1. A boot having an internal, sealed air system with forced air circulation which comprises:
- a. a sole formed of an outer sole and an inner sole pivotally attached together at the toe of the boot for hinged movement in response to the movements of a wearer'"'"'s foot;
b. a first compartment between said outer and inner soles;
c. a flexible diaphragm extending between said inner and outer soles, enclosing and sealing said first compartment;
d. at least a second compartment located within said boot and above the inner sole thereof;
e. an air passageway means open to said first and second compartments and extending therebetween to permit free air flow between said compartments; and
f. a frictional heat generator mounted in said first compartment for movement in response to said hinged movement of said inner and outer soles, thereby providing a frictional heat generator located within said first compartment.
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Accused Products
Abstract
There is disclosed a frictional heat generator and a forced air circulation system for shoes and, in particular, for boots such as ski boots. The shoe has an inner sole which is formed of a pair of sole plates which are mounted for relative sliding movement in the shoe. The upper sole plate is pivotally attached at its toe end to an outer sole of the shoe. The lower sole plate of this pair is pivotally mounted with a crank arm which is located at its heel end. Twisted torsion cables are provided to bias the sole plates upwardly against the applied weight of the wearer. A compartment is formed in the shoe between the pair of sole plates and outer sole and is enclosed with a diaphragm to function as a bellows-type air pump to circulate air through the shoe. Preferably, the forced air circulation system is used in which an air bag which overlies the arch of the shoe and with an air pressure hand pump whereby the air pressure within the shoe can be adjustably set to provide the desired degree of tension on the fasteners of the boot.
44 Citations
25 Claims
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1. A boot having an internal, sealed air system with forced air circulation which comprises:
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a. a sole formed of an outer sole and an inner sole pivotally attached together at the toe of the boot for hinged movement in response to the movements of a wearer'"'"'s foot; b. a first compartment between said outer and inner soles; c. a flexible diaphragm extending between said inner and outer soles, enclosing and sealing said first compartment; d. at least a second compartment located within said boot and above the inner sole thereof; e. an air passageway means open to said first and second compartments and extending therebetween to permit free air flow between said compartments; and f. a frictional heat generator mounted in said first compartment for movement in response to said hinged movement of said inner and outer soles, thereby providing a frictional heat generator located within said first compartment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification