Land vehicles – Ski or skate appliance or attachment – Ski pole
Patent
1987-07-27
1988-10-25
Mitchell, David M.
Land vehicles
Ski or skate appliance or attachment
Ski pole
280822, A63C 1122
Patent
active
047798963
ABSTRACT:
A control rod having a wrist strap fastened thereon is connected to a ski pole and its handle. The control rod is positively releasably locked to the pole. The releasable lock comprises a resilient latch which engages the control rod via a circumferential channel therein and which is moved laterally outward when the rod is depressed. Downward movement of the control rod against a helical biasing spring causes a tubular collar to engage and force the latch outward into a vertical slot in a tubular member. The lock preferably has opposed latches that are integral upstanding members of a cylindrical member disposed within the tubular member. The spring, housed within the cylindrical member, causes the control rod to move upward placing the channel above the latches before the latches return to their normal position so that the rod and strap are removed from the ski pole and its handle.
REFERENCES:
patent: 3093402 (1963-06-01), Sisson
patent: 3378272 (1968-04-01), Lewis
patent: 3982747 (1976-09-01), Schweinsberg
patent: 4453449 (1984-06-01), Hollman
Johnson Brian L.
Mitchell David M.
Yeager Arthur G.
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