Traction device for skis

A snow ski having a traction device to resist rearward sliding movement of the ski over a snow or ice surface and to allow free forward sliding movement thereof, said ski including:

• parallel edges extending longitudinally along the length of said ski on opposite sides of a downwardly facing bottom runner surface;
• an elongated bar having an elongated bottom traction surface parallel to the bottom runner surface of the ski;
• means mounting the bar to the ski for selectively urging the bar downwardly responsive to rearward thrusting motion of the ski to an operative position where the elongated traction surface may frictionally engage the snow or ice surface along the length thereof and upwardly to an inoperative position responsive to forward motion of the ski where the traction surface is spaced upwardly clear and parallel to the bottom runner surface;
• and
• wherein the means is comprised of interfitting parallel slots and pins on the bar and ski and wherein the slots include slot walls that are inclined to cam against the pins to lift or lower the bar in response to forward and rearward thrusting motions of the ski.

A traction device for a ski having a low friction bottom runner between opposed longitudinal side edges for allowing a skier to slide forwardly over a snow or ice surface and for minimizing rearward sliding of said ski, said traction device comprising:

• an elongated rigid traction member having a bottom traction surface thereon;
• means for slidably mounting the traction member to the ski adjacent a side edge thereof and alongside the bottom runner responsive to forward and rearward thrusting motions of the ski to (a) translationally move the traction member to an inoperative position allowing forward sliding motion of the ski in response to forward thrusting motion of the ski and (b) translationally move the traction member to an operative position to frictionally engage the snow or ice surface alongside the runner in response to rearward thrusting of the ski;
• wherein said means includes pins for attachment to the ski along a side edge thereof with shanks projecting laterally outward therefrom;
• wherein the slots include slot walls that are inclined from forward ends adjacent the ski runner to top ends spaced upwardly therefrom in relation to the runner such that the slot walls will (a) cam upwardly against the pins upon forward thrusting motion of the ski and cause the traction member to shift to its inoperative position and (b) cam downwardly against the pins upon rearward thrusting motion of the ski and cause the traction mem ber to shift to its operative position;
• a rigid tooth member pivotably mounted to the side edge of the ski;
• lock means on the tooth member for selectively locking the traction member in its operative position;
• and
• an abutment surface on the traction member for engagement with the rigid tooth at the operative position of said rigid tooth to prevent forward pivotal motion of the tooth beyond its operative position.