Multi-purpose ice axe including rotating spike

摘要

Generally, a spike including a rotary position selector which allows selectable incremental fixed angular positioning of the spike, the spike adaptable to couple to a tool. Specifically, an ice axe having a rotatable spike which allows selectable fixed angular positioning of the spike in relation to the shaft of the ice axe.

主权项

1. An ice axe comprising:
a shaft having a length disposed between a shaft first end and a shaft second end; a spike rotatably coupled to said shaft second end; and a rotary position selector coupled to said spike which allows selectable fixed angular positioning of said spike about a spike rotation axis; wherein said rotary position selector comprises: an angular positioning lock, including:
a polygonal hub coupled to said spike, said polygonal hub and said spike having a coincident rotation axis, said polygonal hub having a plurality of pairs of flat sides each of said plurality of pairs of flat sides disposed in generally opposed parallel relation a distance apart, each of said plurality of pairs of flat sides having an angular displacement about said coincident rotation axis corresponding to a selectable fixed angular position of said spike; anda hub locking channel having a pair of channel sides disposed in generally opposed parallel relation configured to correspondingly adjacently engage one of said plurality of pairs of fiat sides to limit rotation of said polygonal hub about said coincident rotation axis.