Patent ID: 9604079
Date: 2017-03-28
CPC Classifications: A62B,A63B

Claim:
1. A rope-climbing device, comprising: an upper assembly comprising first and second parallel planar side plates each having a common shape with a first free end and a second pivotal end, the first and second side plates spaced apart a first dimension by a roller at a point between the first and second ends by a roller axis through both first and second side plates, such that the side plates are enabled to rotate relative to one another about the roller axis, and the roller is enabled to rotate on the roller axis, the first side plate having a first fixed pin extending beyond the first dimension at a point between the free end and the roller axis, and the second side plate has a slot extending from one edge a distance into the second side plate, such that, with the side plates in rotated position with first free ends aligned and pivotal ends aligned, the pin is fully engaged in the slot; a spine unit comprising first and second elongated planar links of common length and shape, and a common width, each width being half of the plate spacing, the links pivoted to one another at a central point, with one end of the first link joined pivotally to the pivot end of the first side plate of the upper assembly, and one end of the second link joined pivotally to the pivot end of the second side plate of the upper assembly; and a lower assembly comprising third and fourth parallel planar side plates each having a common shape with a first free end and a second pivotal end, the third and fourth side plates spaced apart at the first dimension by a clamp element at a point between their first and second ends by a clamp axis through both third and fourth side plates, such that the third and fourth side plates are enabled to rotate relative to one another about the clamp axis, and the clamp element is enabled to rotate on the clamp axis, the clamp element having an operating end configured to couple to a user's body harness, and a clamp end, the third side plate having a second fixed pin extending beyond the spacing of the third and fourth side plates at a point between the free end and the clamp axis, and the third side plate having a slot extending from one edge a distance into the second side plate, such that, with the side plates in rotated position with first free ends aligned and pivotal ends aligned, the pin is fully engaged in the slot; wherein the pivot points of the device, aligned in just one specific pattern, allow the first and second side plates of the upper assembly, the links of the spine assembly, and the third and fourth side plates of the lower assembly to rotate in concert, opening the device to allow a rope to be engaged between the first fixed pin and the roller of the upper assembly, and between the clamp element and the second fixed pin of the lower assembly, and wherein, with the rope engaged, the elements of the device are enabled to rotate in concert to close the device around the rope, and a user is enabled to rotate the elements with the device closed to slide freely on the rope or to clamp to the rope with weight applied to the operating end of the clamp element.