Article of athletic footwear, especially a ski boot
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 27, 1988
Grant Date -
N/A
app pub date -
Dec 17, 1986
filing date -
Dec 23, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A shoe upper portion of a ski boot comprises a shell portion enclosing the foot and a tongue portion attached thereto. The tongue portion comprises an instep region and a shin region and a transition region therebetween. A corrugated or undulated wall section having elevations and depressions, i.e. corrugations, is located in the transition region. This wall section is composed of a different type of material than the remainder of the tongue portion and possesses a lower bending stiffness or flexural rigidity than the remainder of the tongue portion. This wall section is non-detachably joined to the remainder of the tongue portion and forms therewith a unitary structure. The larger bending or flexural elasticity of the wall section facilitates bending of the lower leg.
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