Abstract: An improved climbing anchor utilizing multiple cam elements in which each cam element is independently spring biased by a flat spiral spring located within a recess in the cam element and acting between the pivot mounting and the cam element. The construction provides a more compact camming head assembly, a stronger climbing anchor, more positive action of the spring biasing means and an improved visual appearance.

Abstract: A climbing device having an anchoring head on the end of a flexible main cable for insertion into a crevice in a rock wall. The head has multiple spring-biased cams which are wedged by a camming action into engagement with the walls of the crevice by pulling on the cable. For placement, the cams are actuated against the spring bias by an elongated flexible sleevelike structure coaxially supported and slidable on the cable. The sleeve structure has at one end a first plate connected by small flexible wire-like members to the cams for operating the cams against their spring bias.