Patent ID: 8939256
Filing Date: 2015-01-27
Classification: E06C

Abstract:
1. A collapsible ladder comprising: several collapsible ladder sections, each or at least part of the ladder sections comprising two hollow ladder bars arranged parallel to each other and interconnected at an upper end by a rung, and each collapsible ladder section being telescopically inserted into a lower ladder section; wherein each ladder bar of a collapsible ladder section has a locking hole adjacent a lower end part of the ladder bar and an extension below the locking hole; wherein retaining mechanisms are provided in at least part of the rungs for locking the collapsible ladder sections relative to one another when the collapsible ladder sections are extended, each of said retaining mechanisms comprising a locking pin, which can be brought into an extended and locked position in order to engage a corresponding locking hole provided in the ladder bar of a ladder section positioned there above, and a release part for bringing the locking pin into a retracted and un-locked position; and wherein the rungs holding the retaining mechanisms with the locking pins and the release parts further have spacers provided at bottoms of the rungs with said spacers, each spacer having a release actuator with a bottom part extending below the spacer when the ladder section above the rung is locked in the extended position, the release actuator engaging the release part of the retaining mechanism of the rung and being arranged to activate the release part when the bottom part of the release actuator is moved upwards through the spacer thereby bringing the locking pin into the un-locked position.