A stair assembly may include a plurality of steps, a main stringer pivotably connected to a corresponding lateral end of each of the plurality of steps, and a support stringer pivotably connected to a corresponding lateral end of each of the plurality of steps, wherein the main stringer and the support stringer are movably connected to the plurality of steps such that the rise and the run of the plurality of steps remains consistent when the main stringer and the support stringer are moved relative to each other.

A modular platform system utilizing a number of components including a platform. The platform is configured so that each of the components may interchangeably connect to any side of the platform. The components include, for example, handrails and stairways, as well as other platforms. The platform and most of the components are formed from single, continuous pieces of metal.

A docking station for a foldable rolling ladder. The docking station has a moveable sled traveling in slots formed therein. The sled has a grip for engaging a ladder. The folding rolling ladder has a rear vertical and a brace that travels up and down the vertical and is pivotably connected to treads of the ladder at an opposite end. The brace has a bracket to engage the grip of the docking station. When the vertical of the ladder engages the sled, via the grip, causes the ladder to be folded into a storage position by the sled traveling within the docking station within and by the docking station and unfolded into a use position.

A method of assembling a modular ladder system includes providing the modular ladder system in an unassembled configuration, the modular ladder system comprising a plurality of ladder modules stacked on a ladder base and comprising first and second ladder modules each defining a first end and a second end; removing the second ladder module from the ladder base; coupling the first end of the first ladder module to the second end of the second ladder module to define a ladder, the ladder defining a first ladder end and a second ladder end, the second end of the first ladder module defining the second ladder end and coupled to the ladder base; elevating the first ladder end of the ladder to orient the ladder at an angle relative to the ladder base; and engaging the first ladder end with an elevated support surface of an elevated structure.

A base support assembly includes a substantially vertical first support brace; a substantially vertical second support brace oriented substantially parallel to the first support brace; and a first cross member and a second cross member each extending between the first support brace and the second support brace, the first cross member crossing the second cross member to define an X-shaped cross member assembly; wherein: each of the first and second cross members are coupled to the first support brace by a first brace tensioning knob and coupled to the second support brace by a second brace tensioning knob; and each of the first brace tensioning knobs and second brace tensioning knobs are rotatable to tension the first and second cross members with the first support brace and the second support brace.

A fire apparatus includes a chassis, a body assembly coupled to the chassis, a front cabin coupled to a front end of the chassis forward of the body assembly, a front axle coupled to the chassis, at least one rear axle coupled to the chassis, a ladder assembly having a proximal end that is coupled to the chassis between the front axle and the at least one rear axle, and a stability system. The stability system includes a pair of front downriggers coupled to the front end of the chassis, a pair of rear downriggers coupled to the rear end of the chassis rearward of the at least one rear axle, and an outrigger assembly coupled to the chassis between the front axle and the at least one rear axle. The outrigger assembly includes a pair of outriggers that are selectively extendable laterally from the body assembly at an angle.

The collapsible stepladder is a climbing structure that allows a person to increase their vertical elevation. The collapsible stepladder comprises a plurality of support stiles, a telescopic stile, a plurality of telescopic handrails, a plurality of steps, a plurality of detents, and a plurality of assembly hardware. The plurality of support stiles and the plurality of steps form the stepladder portion of the collapsible stepladder. The telescopic stile and the plurality of telescopic handrails are safety devices associated with the collapsible stepladder. The vertical height of both the plurality of telescopic handrails and the telescopic stile are adjustable such that safety grips are available at a vertical height appropriate for the elevation. The plurality of detents and the plurality of assembly hardware are used to assemble the collapsible stepladder.

A ladder for use with heavy machinery such as farm equipment, the ladder having platform steps, the ladder being convertible between a deployed position for supporting a person or other load, to a storage, scaffold, or ramp position in which the steps lie in a generally planar arrangement. When deployed, the ladder steps remain parallel to each other. The ladder includes two frames, the frames pivotably connected by a plurality of platform steps, one of the frames being pivotably attached to a piece of heavy machinery. The frame nest within one another in the storage configuration. The pivotable attachment to the heavy equipment may be wheels on the ladder frame that engage horizontal tracks on the heavy equipment, allowing the ladder to be lifted up, the frames nested, and the ladder in the storage configuration slid along the tracks and stored.

The present disclosure provides a folding ladder with a handrail. The folding ladder with a handrail includes a first frame component, a second frame component and a handrail frame component. A rotatable step board component is arranged on the first frame component. The second frame component is rotatably connected to the first frame component. The first end of the handrail frame component is rotatably connected to an upper end of the second frame component, and a second end of the handrail frame component is rotatably connected to one side the first frame component and close to a lower end of the first frame component. The folding ladder rotates between a first position and a second position.

A modular platform system utilizing a number of components including a platform. The platform is configured so that each of the components may interchangeably connect to any side of the platform. The components include, for example, handrails and stairways, as well as other platforms. The platform and most of the components are formed from single, continuous pieces of metal.