Safety binding for a ski boot

Details Safety binding for a ski boot Safety binding for a ski boot

1983-07-12

1987-06-30

Love, John J.

Land vehicles

Skates

Shoe attaching means

A63C 902

Patent

active

046765220

ABSTRACT:
An apparatus for connecting a ski boot to a ski having a binding that is adapted to permit the heel of the boot to be lifted from the ski in normal use. In addition, the binding is also adapted to permit the boot to pivot around the vertical pivot axis. The vertical pivot axis passes through a support zone of the foot which is bounded by the phalanges and metatarsals of the foot. In one preferred embodiment the vertical pivot axis passes through the journal axis around which the metatarsals journal on the phalanges. As a result, lateral forces that are produced as a result of normal skiing by the foot acting against boot cause only a negligible torsion moment because these forces act at the vertical pivot axis, and therefore the lever arm is negligible. In another embodiment, the apparatus is adapted to attach a small boot or a large boot to the ski. In this embodiment, the vertical pivot axis is located so as to pass through the area common to the support zone of the foot in the large boot and the support zone of the foot in the small boot.

REFERENCES:
patent: 2144021 (1939-01-01), Keiner
patent: 2383064 (1945-08-01), Lanz
patent: 2534038 (1950-12-01), Lanz
patent: 2545574 (1951-03-01), French
patent: 2676813 (1954-04-01), Beyl
patent: 3845964 (1974-11-01), Johnson
patent: 3866928 (1975-02-01), Gertsch et al.
patent: 4185852 (1980-01-01), Himmetsberger et al.
patent: 4382611 (1983-05-01), Salomon

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