| 摘要 |
Apparatus and associated methods relate to a dorsal wear-pad having an external, low-friction, high-wear-resistance surface, the dorsal wear-pad configured to be releasably coupled to a D-ring connection region of a fall-protection safety harness. In various embodiments, the dorsal wear-pad may project out and away from a wearer so as to prevent the D-ring from contacting a wall surface. For example, the dorsal wear-pad may have a D-ring aperture through which the D-ring may project. In some embodiments, the dorsal wear-pad may have a back shield to prevent a snap-hook connected to the D-ring from contacting a wearer's back. An exemplary embodiment may have two prominences, one on either side of the D-ring. Some exemplary dorsal wear-pads may advantageously protect 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 by a wearer; a D-ring having a webbing aperture and a device aperture; a D-pad having a plurality of D-pad apertures, wherein a first portion of the webbing routes through a first subset of the plurality of D-pad apertures and then through the webbing aperture of the D-ring and then through a second subset of the plurality of D-pad apertures, and wherein a second portion of the webbing routes through a third subset of the plurality of D-pad apertures and then through the webbing aperture of the D-ring and then through a fourth subset of the plurality of D-pad apertures, wherein the first portion of the webbing crosses over the second portion of the webbing at a criss-cross point approximately where the first portion and the second portion both route through the webbing aperture of the D-ring; and a unitary-body dorsal wear-pad comprising high-density polyethylene releasably coupled the D-pad, the dorsal wear-pad comprising:
a base having an inwardly-facing surface which inwardly faces a wearer when worn and an outwardly-facing surface which outwardly faces away from the wearer when worn, the base comprising a D-ring aperture extending through the base from the outwardly-facing surface to the inwardly-facing surface, wherein the D-ring aperture is sized to permit a D-ring to project therethrough, and sized to permit the D-ring to rotate from an upward-canted position to a downward-canted position therein, wherein the base extends when worn below the D-ring aperture and is configured to shield the wearer from a snap-hook which releasably attaches to the D-ring; andtwo raised wear-bumps configured to prevent the D-ring from contacting the wall surface when the D-ring is in the downward-canted position, wherein each of the two wear-bumps has a semi-ellipsoidal region projecting from the base, each of the two 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 outwardly-facing surface of the base, wherein the major dimension of each wear-bump is substantially greater than the minor dimension, wherein the two wear-bumps are aligned horizontally such that each of the two minor axes share a common centerline, wherein the two wear-bumps have substantially equal major dimensions, substantially equal minor dimensions and substantially equal projecting heights, respectively, wherein the projecting height of each of the two wear-bumps is greater than a projecting height of a distal end of a D-ring relative to the outwardly-facing surface when the D-ring is projecting through the D-ring aperture and rotated to the downward-canted position. |
