An apparatus and kit for conversion of a folding ladder to a mobile platform. The apparatus includes a folding ladder structure with mounting placements for affixing a pair of wheel attachments. The wheel attachments provide selective movement of a set of wheels between a ground-engaging position and an elevated non-ground-engaging position. The kit including the mounting placements and the wheel attachments capable of use with a folding ladder to provide stability and mobility of the ladder configured with the kit.
E06C 1/20 - Ladders capable of standing by themselves with struts which rest on the ground with supporting struts formed as poles
E06C 1/383 - Foldable ladders in which the longitudinal members are brought together on folding
E06C 1/397 - Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
A stabilization and anti-rotation system provides for secure interconnection between a scaffolding work platform and two primary platforms, each of which is attached to a ladder, and prevents relative movement between the primary platforms and the scaffolding platform. A locating block is attached to a plate of each primary platform 402. A pair of spaced apart and vertically oriented guide blocks are attached to a facing plate on each end of the work platform and positioned so that a guide slot is defined between the blocks. When assembled, the locating block is closely captured between the guide blocks and the structure provides stability and prevents rotation of the work platform relative to the primary platforms.
E04G 1/24 - Scaffolds primarily resting on the ground comprising essentially special base constructionsScaffolds primarily resting on the ground comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
06 - Common metals and ores; objects made of metal
Goods & Services
Metal ladders and extensions therefor; Metal accessories for ladders, namely, metal trays and holders specially adapted for fastening to ladders for supporting tools and, metal stabilizer bars
A scaffolding system is defined by a first primary platform connected to a first cantilevered ladder, a second primary platform connected to a second cantilevered ladder, and a work platform extending between and connected to the first and second primary platforms.
E06C 1/393 - Ladders having platforms foldable with the ladder
E06C 1/20 - Ladders capable of standing by themselves with struts which rest on the ground with supporting struts formed as poles
E04G 1/24 - Scaffolds primarily resting on the ground comprising essentially special base constructionsScaffolds primarily resting on the ground comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
E04G 7/34 - Scaffolding bars or members with non-detachably fixed coupling elements with coupling elements using positive engagement, e.g. hooks or pins
E06C 1/397 - Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
E06C 1/22 - Ladders capable of standing by themselves with struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
E04G 5/10 - Steps or ladders specially adapted for scaffolds
E06C 7/18 - Devices for preventing persons from falling
An extension module is provided for attachment to a folding or rigid ladder to extend the effective working height of the ladder. A ladder that is designed for use with an extension module according to the invention defines the base module to which the extension module is attached. Cooperatively constructed interconnecting structures on the ladder and the extension module operate to secure the extension module to the ladder and to stabilize the combination of the ladder with the extension.
E06C 1/20 - Ladders capable of standing by themselves with struts which rest on the ground with supporting struts formed as poles
E06C 1/38 - Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
E06C 7/18 - Devices for preventing persons from falling
A brace locking mechanism locks the foldable braces of a folding ladder in the open position. The brace locking mechanism is used with a ladder that has a stepped unit and a support unit foldably attached to the stepped unit with a foldable brace extending between the stepped unit and the support unit. The brace locking mechanism comprises a lock block that is movable between a locked position in which the lock block prevents the foldable braces from moving out of their open position when the ladder is open, and an unlocked position in which the ladder may be folded into the storage position.
E06C 1/397 - Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders characterised by having wheels, rollers, or runners
E06C 1/38 - Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
A brace locking mechanism locks the foldable braces of a folding ladder in the open position. The brace locking mechanism is used with a ladder that has a stepped unit and a support unit foldably attached to the stepped unit with a foldable brace extending between the stepped unit and the support unit. The brace locking mechanism comprises a lock block that is movable between a locked position in which the lock block prevents the foldable braces from moving out of their open position when the ladder is open, and an unlocked position in which the ladder may be folded into the storage position.
