ApplicationNo. 06/772623 filed on 09/04/1985
US Classes:248/231.9, In aperture of support248/925MOUNTAIN CLIMBING AIDS (E.G., PITONS ETC.)
ExaminersPrimary: Ramirez, Ramon O.
Attorney, Agent or Firm
International ClassesA63B 29/02 (20060101)
A63B 29/00 (20060101)
AbstractA camming, or wedging, device is disclosed that is particularly useful in climbing a severely sloping surface, such as, for example, the side of a rock or mountain formation having natural or man-made openings therein and into which the camming device may be releasably anchored to facilitate climbing. The camming device includes a support arm having a plurality of interrelated cam members pivotally mounted thereon at one end, and a centrally mounted cam actuator connected with the cam members to control movement of the cam members from an extended (open) position to a withdrawn (closed) position. Each cam member has a serrated arcuate cam surface that is positioned adjacent to the support arm when the cam member is pivoted to the withdrawn position by the cam actuator, and is biased so that the cam surfaces are urged away from the support arm toward the extended position when not being acted upon by the cam actuator, with the cam surfaces of the cam members extending different distances from the support arm when in the extended position to thereby allow firm anchoring of the camming device over a broad size range of openings. The camming device also includes a strap engaging member on the central portion of the support arm, and a rope engaging member on the end portion opposite the cam members for enabling concurrent or independent use of a strap and a rope during climbing.
Field of SearchSUSPENDED SUPPORTS