Self-adjusting rock climbing anchor device

Details Self-adjusting rock climbing anchor device Self-adjusting rock climbing anchor device

1998-07-22

1999-08-10

Ramirez, Ramon O.

Supports

Brackets

Specially mounted or attached

248925, A47F 508

Patent

active

059346353

ABSTRACT:
A self-adjusting rock climbing anchor device includes at least one variable-length compression arm, at least one fixed-length load arm, a pivot element pivotally connecting the compression and load arms to one another, and at least one fixed-length follower cable. The follower cable interconnects the compression and load arms at intermediate locations thereon so as to form at least one four-bar linkage defined by the pivot element, the compression arm, the load arm and the follower cable, the follower cable. The movement of the compression and load arms between an unwedged and wedged condition provides for self-adjustment of the compression and load arms within the cleft and enables use of the compression and load arms in clefts of different sizes. The device further includes at least one spring which biases the compression arm toward a maximum length and thereby preloads the device to resist forces directed on the device from outside of a plane defined by the compression and load arms.

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