초록 ▼

A safety clamp slidably mounted on a vertical safety rail in proximity to a ladder is attached to a workman\s belt by a pivotal actuating arm which shifts a wedge plate into clamping engagement with a safety carrier immediately under free fall conditions encountered if the workman falls from the lad

A safety clamp slidably mounted on a vertical safety rail in proximity to a ladder is attached to a workman\s belt by a pivotal actuating arm which shifts a wedge plate into clamping engagement with a safety carrier immediately under free fall conditions encountered if the workman falls from the ladder. The rail is spaced from the ladder mounting brackets by circular sleeves.

대표청구항 ▼

A safety rail system for mounting on a ladder, said system comprising: an elongated rail having a substantially rectangular cross-section and being relatively thin whereby when said rail is installed with the elongation parallel to the longitudinal extent of the ladder, said rail may be easily bent

A safety rail system for mounting on a ladder, said system comprising: an elongated rail having a substantially rectangular cross-section and being relatively thin whereby when said rail is installed with the elongation parallel to the longitudinal extent of the ladder, said rail may be easily bent about an axis parallel to the ladder rungs so as to follow ladder contours; at least one mounting bracket for attachment to a plurality of said rungs; means for attaching each said mounting bracket to a plurality of said rungs, said attaching means being infinitely adjustable along the length of said mounting bracket, and means for securing said rail to said brackets, in spaced relationship outwardly from said ladder and said brackets, said securing means comprising: a plurality of bolts, said bolts having tapered heads; a corresponding plurality of tubular spacers each of said spacers having a bore sized to accommodate one of said bolts, each of said spacers being of such length and diameter so as to allow a safety clamp to substantially encircle said safety rail; said safety rail having a plurality of spaced countersunk holes to accommodate said bolt heads flush with the surface of said rail, thereby presenting a plane surface for gripping engagement; and said spacers being located between said mounting brackets and said rail, said bolt heads being located in said countersunk holes, said bolts fastening said rail to said brackets with said spacer bores accommodating said bolt therebetween.