Back to results
US 8,464,833 B2Granted
Adjustable hang ladder with fall arresting and cushioning arrangement
OwnerGe Leeinventor
Life of this patent
Estimating the term…
Abstract
An adjustable hang ladder includes a main ladder section and a hang ladder section secured to the main ladder section. The hang ladder section has a hang ladder insert pivotally secured to an attachment section and locked in place by a locking mechanism. The hang ladder section is provided with a fall arresting and damping arrangement designed for connection to a roofer using the ladder for providing a cushioning effect in the event the roofer falls from the ladder.
Claims9
An adjustable hang ladder adapted to be used by a roofer on an inclined roof comprising:
- a main ladder section having an outer ladder and an inner ladder slidably received relative to the outer ladder so that the inner ladder is movable between retracted and extended positions relative to the outer ladder to change a length of the main ladder section, the inner ladder being selectively locked relative to the outer ladder by a first locking mechanism on the outer ladder, the outer ladder and the inner ladder each having side rails interconnected by a plurality of rungs;
- a hang ladder section having an attachment section secured to an upper end of the outer ladder and a hang ladder insert pivotally attached to the attachment section so that the hang ladder insert is movable to various angular positions relative to the attachment section, the upper end of the attachment section being provided with a second locking mechanism for fixing the hang ladder insert at a particular angular position relative to the attachment section, the attachment section and the hang ladder insert having side rails interconnected by a plurality of rungs;
- and
- a fall arresting and resilient damping arrangement fixedly mounted on the hang ladder section and designed for connection to the roofer for providing a cushioning effect in the event the roofer falls from the ladder,
- wherein the fall arresting and resilient damping arrangement includes a cushioning cylinder assembly movable between extended and retracted positions.
2 more elements
Dependencies are inferred from the claim text.