A lightweight, multi-function scaffold includes an adjustable height platform that slidably mounts between two ladder frames and a plurality of outriggers to increase stability. The outriggers attach to the ladder frames of the scaffold and extend beyond an end of the scaffold in the longitudinal direction to increase the maximum base width. Increasing the maximum base width increases stability in the longitudinal dimension and reduces the risk of tipping the scaffold end over end when a user climbs the ladder frame to access the platform.

The QDS scaffolding system can be delivered to the job-site in a pre-assembled but stowed configuration and can then be rapidly assembled on the job-site. Assembly may be accomplished using an external power source such as a crane, an internal power source such as a hydraulic actuator or an electrical motor, or any other suitable power source. In certain circumstances, manual erection could even be used. It is a modular system consisting of structural frameworks, quick deploy mechanisms, locking frameworks and working platforms. The quick deploy mechanisms are integrated within the structural frameworks and allow each structural framework to be erected from its stowed position to full working height by an auxiliary power source, such as a crane. In some instances the structural frameworks can be erected using an internal power source or even manually. Multiple base assemblies can be connected together to form a scaffolding system of various heights with one or more working platforms

The QDS scaffolding system can be delivered to the job-site in a pre-assembled but stowed configuration and can then be rapidly assembled on the job-site. Assembly may be accomplished using an external power source such as a crane, an internal power source such as a hydraulic actuator or an electrical motor, or any other suitable power source. In certain circumstances, manual erection could even be used. It is a modular system consisting of structural frameworks, quick deploy mechanisms, locking frameworks and working platforms. The quick deploy mechanisms are integrated within the structural frameworks and allow each structural framework to be erected from its stowed position to full working height by an auxiliary power source, such as a crane. In some instances the structural frameworks can be erected using an internal power source or even manually. Multiple base assemblies can be connected together to form a scaffolding system of various heights with one or more working platforms

A support apparatus 1 for supporting a user in an elevated working position above a ground surface G comprises a frame 60 for supporting a floor portion 20 of the support apparatus and a plurality of leg members 40a, 40b mounted to the frame 60 for supporting the frame above the ground surface G. Each leg member has a foot portion 42 for engaging the ground surface G. Each leg member is rotatably mounted to the frame for rotation about a rotational axis which is substantially perpendicular to the width and the length of the frame and each leg member extends from the frame in a radial direction of the rotational axis, whereby the foot portion is offset from the rotational axis.

A support apparatus 1 for supporting a user in an elevated working position above a ground surface G comprises a frame 60 for supporting a floor portion 20 of the support apparatus and a plurality of leg members 40a, 40b mounted to the frame 60 for supporting the frame above the ground surface G. Each leg member has a foot portion 42 for engaging the ground surface G. Each leg member is rotatably mounted to the frame for rotation about a rotational axis which is substantially perpendicular to the width and the length of the frame and each leg member extends from the frame in a radial direction of the rotational axis, whereby the foot portion is offset from the rotational axis.

In a vehicle with aerial work platform, while not receiving an operation instruction to move down the work platform from the rise and fall operating device, when moving down of the work platform is detected based on the detecting result of the rise and fall position detecting device, the rise and fall control device controls the first switching valve to switch so that the bottom-side oil chamber is connected to the hydraulic pump and controls the second switching valve to switch to the first state so as to make oil pressure in the bottom-side oil chamber be kept by the second switching valve and the check valve. Then, the rise and fall hydraulic cylinder is stopped to be contracted.

An independent self-climbing form system may be assembled at a work site to build, maintain, or repair vertical structures. The independent self-climbing form system may include a plurality of support towers. Additionally, at least two trusses may be connected to the plurality of support towers. The trusses may be spaced apart from each other. Further, one or more platforms may be formed within a perimeter delimited by the at least two trusses. The at least one or more platforms may be configured to extend or retract within the perimeter. Furthermore, screw jacks may be disposed at each connection point of the at least two trusses on the plurality of support towers. The screw jacks may be configured to vertically move the at least two trusses up and down the plurality of support towers.

An independent self-climbing form system may be assembled at a work site to build, maintain, or repair vertical structures. The independent self-climbing form system may include a plurality of support towers. Additionally, at least two trusses may be connected to the plurality of support towers. The trusses may be spaced apart from each other. Further, one or more platforms may be formed within a perimeter delimited by the at least two trusses. The at least one or more platforms may be configured to extend or retract within the perimeter. Furthermore, screw jacks may be disposed at each connection point of the at least two trusses on the plurality of support towers. The screw jacks may be configured to vertically move the at least two trusses up and down the plurality of support towers.

A lift apparatus includes a ladder assembly having a first ladder end portion and a second ladder end portion extending upwardly from a base framework, each end portion having a pair of upstanding support legs and a plurality of rungs. The lift apparatus includes a platform that is slidably coupled to respective support legs of respective ladder end portions, the platform having a floor surface capable of supporting a person. The lift apparatus include a motorized pulley system operable for raising and lowering the platform relative to the ladder end portions via a controller accessible to the worker while standing on the platform.

A lift apparatus includes a ladder assembly having a first ladder end portion and a second ladder end portion extending upwardly from a base framework, each end portion having a pair of upstanding support legs and a plurality of rungs. The lift apparatus includes a platform that is slidably coupled to respective support legs of respective ladder end portions, the platform having a floor surface capable of supporting a person. The lift apparatus include a motorized pulley system operable for raising and lowering the platform relative to the ladder end portions via a controller accessible to the worker while standing on the platform.