Pole shaft for a cross-country ski pole
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United States of America Patent
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Mar 18, 1997
Grant Date -
N/A
app pub date -
Sep 1, 1995
filing date -
Feb 3, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a pole shaft for a cross-country ski pole. Longitudinal and transverse fiber layers are used for providing a hollow shaft, whose cross section changes progressively downwards into a droplet shape and, below the mid-way point of a shaft, the length of a droplet shape in relation to its width increases while the cross-sectional area diminishes. By virtue of the droplet shape, the pole can be given more rigidity in skiing direction, whereby the bottom end of a pole can be made lighter while improving the aerodynamics of a pole.
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