The present disclosure relates systems and methods involving movable/adjustable guardrails. An example system includes a frame weldment and a rail assembly attached to the frame weldment. The rail assembly includes a first post and a second post. The base portion of the first post is rotatably coupled to a first pivot point of the frame weldment and the base portion of the second post is rotatably coupled to a second pivot point of the frame weldment. The system also includes a top rail rotatably coupled between a top portion of the first post and a top portion of the second post. The system yet further includes an actuator configured to controllably adjust a configuration of the rail assembly between an extended configuration and a retracted configuration with respect to the frame weldment.

A temporary shield erected between two flanged structural members of a bridge or other structure, and a method for erection of the shield. A plurality of length-adjustable beams have end portions which are rested on flanges respectively of the structural members in a manner so that they are not fixed thereto. Decking is attached to the beams. At least one elongate member is cantileverly extended from at least one of the beams to underlie a structural member flange to prevent wind lift-up of the shield. A shield is also erected by adjusting the lengths of and hanging the end portions of each of a multitude of beams from the structure with the beams lying side-by-side. Decking is attached to the beams.

A configurable scaffolding system is configured to facilitate simplified, reconfigurable access to a plurality of horticulture racks. With use of the configurable scaffolding system, operator convenience and safety are improved, and increased plant density in horticultural applications can be achieved.

The present disclosure relates to systems and methods involving collapsible guardrails. An example system includes a top rail, a mid rail, an enclosure, and at least two posts. Each post includes an upper primary member, a lower primary member, an upper secondary member, and a lower secondary member. The upper primary member and the lower primary member are slidably coupled to at least one slot in the mid rail. The upper secondary member is rotatably coupled to the upper primary member and the lower secondary member is rotatably coupled to the lower primary member. The upper primary member is further coupled to the top rail and the lower primary member is coupled to the enclosure.

The present disclosure relates systems and methods involving movable/adjustable guardrails. An example system includes a frame weldment and a rail assembly attached to the frame weldment. The rail assembly includes a first post and a second post. The base portion of the first post is rotatably coupled to a first pivot point of the frame weldment and the base portion of the second post is rotatably coupled to a second pivot point of the frame weldment. The system also includes a top rail rotatably coupled between a top portion of the first post and a top portion of the second post. The system yet further includes an actuator configured to controllably adjust a configuration of the rail assembly between an extended configuration and a retracted configuration with respect to the frame weldment.

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.

The present disclosure relates systems and methods involving movable/adjustable guardrails. An example system includes a frame weldment and a rail assembly attached to the frame weldment. The rail assembly includes a first post and a second post. The base portion of the first post is rotatably coupled to a first pivot point of the frame weldment and the base portion of the second post is rotatably coupled to a second pivot point of the frame weldment. The system also includes a top rail rotatably coupled between a top portion of the first post and a top portion of the second post. The system yet further includes an actuator configured to controllably adjust a configuration of the rail assembly between an extended configuration and a retracted configuration with respect to the frame weldment.

Systems and apparatuses an adjustable platform rail assembly. The adjustable platform rail assembly includes a lower rail assembly and an upper rail assembly. The lower rail assembly extends away from a platform of a mobile elevated work platform. The upper rail assembly is coupled to the lower rail assembly and extends upwardly away from the lower rail assembly to define a passenger compartment therein. The upper rail assembly is coupled to the lower rail assembly and is movable between a first position where the upper rail assembly defines an upper perimeter defined by a first length and a second position where the upper rail assembly defines an upper perimeter defined by a second length that is shorter than the first length.

A railing assembly includes at least one ratcheting post and at least one connection post. The at least one ratcheting post includes at least one ratcheting assembly attached to the at least one ratcheting post for selectively engaging a strap and the at least one connecting post including at least one attachment point for engaging an attachment member on the strap.

An upper rail assembly, an actuator that actuates between a retracted position and an extended position based on a signal that the platform is in one of a retracted position and an extended position with respect to the recreational vehicle, and a first drive chain combined to the actuator and connected to the upper rail assembly for moving the upper rail assembly between a retracted position and an extended position with respect to the platform is disclosed.