| 摘要 |
A spike assembly for attachment to a ski pole or walking stick adapted to provide secure support on hard or icy ground surfaces is presented. The assembly includes a profiled sleeve member longitudinally movably connected to the lower end of the shaft of a ski pole or the lower end of a walking stick in resilient engagement therewith. At least one guiding ring is positioned in the interior of the sleeve member and surrounds said shaft adjacent its lower end and a nail-shaped spike member is movable relative to the said sleeve member and is adapted to be shifted from a position wherein it is completely covered by the terminal portion of said sleeve member to a position wherein it protrudes beyond the terminal portion so that said sleeve member normally covers said spike until said shaft is under a downward load, at which time said sleeve retracts, allowing said spike to protrude from said sleeve member to provide support for the ski pole or walking stick.
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