Lumbar wear-pad

摘要

Apparatus and associated methods relate to a flexible lumbar wear-pad having an external low-friction high-wear-resistance surface, the lumbar wear-pad configured to be replaceably coupled to the lower back region of a belted fall-protection safety harness. In various embodiments, the lumbar wear-pad may cover a length of the webbing over the hip and lumbar vertebrae regions of a wearer's lower back. In some embodiments a lumbar wear-pad may be field replaceable on a fall-protection safety harness. An exemplary embodiment may have three prominences, a smaller center prominence located near a wearer's lumbar vertebrae and two side prominences located near a wearer's hip bones. In some embodiments, the lumbar wear-pad may be flexible so as to anatomically conform to a wearer's body. Exemplary lumbar wear-pads may provide protection for both a wearer and the wearer's harness during sliding or leaning engagements with vertical surfaces.

主权项

1. A fall-protection safety harness for promoting slidable engagement between a wearer and a wall, the fall-protection safety harness comprising:
a webbing configured to be worn around a waist of the wearer; and a unitary-body lumbar wear-pad comprising high-density polyethylene replaceably coupled to the webbing and covering a length of the webbing at the lumbar region of a wearer's back, the lumbar wear-pad comprising: a flexible substantially-planar base having an inside surface which inwardly faces the wearer when worn and an outside surface which outwardly faces away from the wearer when worn, the substantially-planar base comprising a plurality of cooling apertures extending through the substantially-planar base from the outside surface to the inside surface; and three semi-ellipsoidal raised wear-bumps, a first, a second, and a third, projecting outwardly from the outside surface of the substantially-planar base, each of the three wear-bumps having a major dimension along a vertical major axis, a minor dimension along a horizontal minor axis, and a projecting height relative to the outside surface, wherein the major dimension of each wear-bump is substantially greater than the minor dimension, the three wear-bumps aligned horizontally such that each of the three minor axes share a common horizontal centerline, the second wear-bump located substantially half-way between the first and the third wear-bumps, wherein the first and third wear-bumps have substantially equal major dimensions, substantially equal minor dimensions and substantially equal projecting heights, respectively, wherein the projecting height of the second wear-bump is less than either one of the projecting heights of the first and third wear-bumps, wherein each of the first, second and third wear-bumps has a belt aperture aligned to the centerline and configured to receive a belt proximate to the outside surface of the flexible planar base, the belt to pass horizontally through the three wear-bumps without requiring the belt to bend or twist.