Column climbing device
OwnerDelmar D. Lewisinventor
Life of this patent
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Abstract
A climbing device for climbing columns such as girders having flanges. The devices are worn in pairs on the feet of the climber and each is equipped with a gripping member having spaced apart jaws adapted to grip the column flange. The gripping member on each device is mounted on the foot-attached or base member for selective swinging between two positions, one a climbing position in which each pair of jaws extends laterally inwardly of the respective foot and the other a retracted position in which the jaws extend laterally outwardly and behind the heel of the climber's foot so as to be out of the way when not used for climbing. Means is provided for selectively locking the gripping member to the base member in either of said positions.
Claims6
A climbing device of the class described, including a base member having means for the attachment to a climber's foot, a gripper member carried by the base member and having a pair of jaws spaced apart fore-and-aft as respects the length of the climber's foot for gripping the flange of a column, characterized in that the gripping member is L-shaped as seen from above, having a first part adapted to lie alongside the inner side of the climber's foot and a second part fixed to the first part and constituting the jaws, the first part has a free end opposite to the jaws and is mounted thereat on the base member by an upright pivot member for selective swinging between a climbing position in which the jaws extend laterally inwardly of the climber's foot for gripping a column flange and a retracted position in which the jaws extend laterally outwardly and behind the heel of the climber's foot, and means is provided for selectively securing the gripping member to the base member in either of said positions.
Dependencies are inferred from the claim text.