Land vehicles – Ski or skate appliance or attachment – Ski pole
Patent
1999-10-19
2000-07-04
Mar, Michael
Land vehicles
Ski or skate appliance or attachment
Ski pole
135 84, 280821, 403 57, A63C 1122
Patent
active
06082767&
ABSTRACT:
An athletic pole including a handle, a s haft, and a handle-to-shaft transition assembly, the transition assembly being adapted for allowing the handle to articulate and for minimizing rotational motion of the handle relative to the shaft during pole operation. The transition assembly includes an enlarged shaft base on the shaft and an enlarged handle base on the handle. The shaft base includes a handle-base-engaging surface, a raised alignment post on the handle-base-engaging surface, axial splines formed with the alignment post, and radial splines extending along the handle-base-engaging surface of the shaft base. The handle base includes a shaft-base-engaging surface having spline grooves complementary to the radial splines and the axial splines of the shaft base. The shaft-base-engaging surface also includes spline groove pairs parallel to and flanking radial portions of the the spline grooves, wherein the spline groove pairs receive the axial splines that flank the particular axial spline received by a radial portion of a spline groove during a particular handle articulation. The handle base also includes axial extensions of the radial portions of the spline grooves that engage the radial splines of the shaft base during handle articulation.
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Bujold Edward J.
Wise Eugene P.
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