The disclosure relates to portable staircases having a staircase assembly including an outer staircase and an inner staircase that can move in a telescoping relationship with respect to the outer staircase. Portable staircases of the disclosure are particularly useful for accessing an oil drilling rig as they are independently supported with respect to the drilling rig, thus providing numerous safety improvements and advantages. Methods of using the portable staircases of the disclosure are also disclosed.

A fire apparatus includes a chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a ladder assembly coupled to the chassis, and a stability system. The stability system includes at least one of (i) a front downrigger coupled to the chassis, (ii) a rear downrigger coupled the chassis, or an outrigger coupled to the chassis. The stability system is controllable to facilitate leaning the fire apparatus at least two degrees relative to a ground surface while maintaining full operational capability of the ladder assembly.

A vehicle includes a chassis, tractive assemblies, a body assembly, a turntable, a platform, and a control console. The tractive assemblies, body assembly, and turntable are coupled to the chassis. The platform supports an operator in a command position and includes an outer perimeter. The control console includes a base coupled to the turntable and spaced from the outer perimeter. The control console includes a movable section that is movably coupled to the base and includes an operator interface configured to receive operator commands to control a vehicle system. The movable section is repositionable relative to the base between a stowed position and an operating position. The operator interface is accessible by the operator from the command position when the movable section is in the operating position. The vehicle has an overall height defining a top plane. The movable section is below the top plane when in the stowed position.

Various vehicle systems are proposed for accessing and utilizing vehicle cargo spaces on vehicles equipped with a tailgate assembly. The vehicle systems may include deployable and/or rotatable stairgate systems, deployable step systems, etc. designed for the accessing the vehicle cargo spaces. The proposed systems may include various deployment mechanisms that enable the stairgate/step systems to slide, pivot, rotate, swing, and/or otherwise adjust for providing ease of access and increased flexibility when stepping up to access the vehicle cargo space.

A fire apparatus includes a chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a ladder assembly coupled to the chassis, and a stability system. The stability system includes at least one of (i) a front downrigger coupled to the chassis or (ii) a rear downrigger coupled the chassis, and an outrigger coupled to the chassis. The at least one of (i) the front downrigger or (ii) the rear downrigger and the outrigger are extendable and retractable to facilitate leaning the fire apparatus at least two degrees relative to a ground surface while maintaining full operational capability of the ladder assembly.

A vehicle includes a chassis, an implement assembly coupled to the chassis, a stability system coupled to the chassis, and a control system. The stability system includes extendable components that selectively engage a ground surface. The control system is configured to control the stability system to level the vehicle and enable the stability system to lean the vehicle when an operational capability of the implement assembly is at a limit thereof while the vehicle is level to effectively improve the operational capability relative to when the vehicle is level.

A rung which can be installed in a ladder is disclosed which comprises a first plate having first and second ends, each of the first and second ends having a relief tab and an opening, and a second plate, the second plate being identical to the first plate, the first and second plates being nestable such that the relief tabs of the first plate insert through the openings of the second plate to form the rungs.

A vehicle includes a turntable rotatably coupled to a chassis, a platform coupled to the turntable, and a railing coupled to the platform. A control console includes a base section coupled to the turntable and spaced from the railing and a movable section that is movably coupled to the base section. An access opening is defined between the railing and the base section. The platform is accessible by an operator through the access opening. The movable section of the control console is selectively repositionable relative to the base section between a stowed position and an operating position. An operator interface of the movable section is configured to be accessed by the operator when the movable section is in the operating position. The movable section of the control console extends across the access opening when in the operating position, thereby limiting operator accessibility through the access opening.

A vehicle including a body and an aerial device operable to rotate, extend, and retract relative to the body. The vehicle further includes a control panel, an electronic display, a computer control system, and an aerial elevation sensor that senses an elevation of the aerial device, wherein the computer control system receives a piece of data corresponding with the elevation and generates a graphical representation of the current operating ability of the aerial device based on the elevation that is displayed on the electronic display of the control panel.

A vehicle includes a chassis defining a longitudinal axis, a cab coupled to the chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a body assembly coupled to the chassis, and a ladder assembly. The body assembly defines a recess that includes a plurality of angled portions. The plurality of angled portions extend laterally outward at a downward angle away from the longitudinal axis. The ladder assembly has a proximal end disposed within the recess. The plurality of angled portions at least partially facilitate the ladder assembly in traveling through at least one of a sweep angle range or a depression angle range.