Abstract: An unlocking structure of workbench ladder includes a platform and two ladders hinged to the two ends of the platform; wherein, the ladder includes an unlocking structure relative to the hinged joint of the platform, and the unlocking structure includes an operating button, rotating lock tongue and a first elastic element; the rotating lock tongue is arranged in the column and the upper end is a locking hook which is locked and located in the locking plate at the bottom of the platform; the first elastic element acts between the rotating lock tongue and the column driving and positioning the locking hook toward the locking plate to lock the ladder and the platform; the operating button acts on the rotating lock tongue to overcome the first elastic element and drive the locking hook to move in a direction opposite to the locking plate, unlocking the ladder and the platform.

Abstract: Various embodiments of ladders, ladder legs, ladder feet, foot mechanisms for ladders, and related methods are provided herein. In one embodiment, a foot is pivotal relative to a leg or rail of the ladder between a first position and at least a second position. A biasing force is applied to the foot to maintain the foot in either of the user-selected positions until a force is applied to pivot the foot to another position. In one embodiment, the foot mechanism maintaining the foot at a desired position may include a pair of pins that couple the foot to another component (e.g., a housing member, an insert member or a rail of the ladder). At least one of the two pins may be displaceable relative to the other pin during pivoting of the foot.

Abstract: Treads are provided which allow a stepping surface to be made of a rubber, plastic, or other gripping material while limiting or eliminating recesses or corners that are difficult to clean. Concentric rings of alternating hills and valleys are provided on a top surface of a step. The hills and valleys are wide, have limited slopes, and reduce abrupt directional changes in the surfaces. A user can clean the surface easily with a sponge, towel, mop, or other cleaning tool because the cleaning surface can reach most or all of the tread surface.

Abstract: Ladders and ladder components are provided including feet for ladders configured for securement of the ladder to a supporting surface, adjustable leg members for ladders, bearing members for ladders, and adjustment mechanisms for ladders. In one embodiment, an adjustment mechanism may include a first pair of spaced apart rails, a pair of adjustable legs having a first end hingedly coupled to one of a pair of adjustment mechanisms and a second end coupled with a foot. The adjustment mechanisms may be slidably coupled with the rails and in one embodiment, each adjustment mechanism is selectively displaceable along a length of its associated rail only when upward force is absent from the adjustment mechanism, the upward force being defined in a direction from a lower end of the associated rail towards the adjustment mechanism.

Abstract: An elevating cage system includes floor panels for a walk surface that can pivot upward to expose a portion of a container disposed below the platform. Each floor panel has a latch that pivots to engage a cage railing surrounding the platform and hold the floor panel in an open position. The latch is weighted about a pivot so that when the panel is pivoted to a completely open position, the latch pivots under its own weight to engage a stop so that the latch is disposed in an orientation to engage the handrail and hold the panel in the open position until an operator releases the latch. When the panel pivots to its closed position, the latch's weight balance about its pivot causes the latch to rotate until the latch engages the stop and is held in a stowed orientation in which the latch is entirely below a plane of an upper surface of the panel.

Abstract: A horizontal scaffold member having a primary end connector and a secondary end connector. Each end connector is configured to couple to a cup or rosette on a vertical scaffold member. Each end connector includes a wedge assembly having a handle and a wedge, movable with respect to the connector to a latched and unlatched position. The primary wedge assembly has a primary and tertiary handles, with the tertiary handles connected to the secondary wedge assembly by a cable, and configured so that moving the primary and tertiary handles simultaneously to an unlatched position also moves the secondary wedge assembly to an unlatched position.

Abstract: A scaffold ledger providing a raised support surface of the elongate structural member with the opposed ledger heads being downwardly and outwardly offset. Each ledger head includes cover flaps that extend the raised support surface above the ledger heads in a cover position. The scaffold ledger cooperates with scaffold posts and scaffold planks to allow for a continuous work platform above an intermediate scaffold support post and/or across supporting ledgers.

Abstract: A personnel basket that provides a partially enclosed work platform that may be readily attached or detached from the end of a crane boom and may be maintained level with the ground when suspended from a crane boom above ground and that is also capable of being collapsed from a work ready position into a stowed position of substantially smaller spatial volume when not in use.

Abstract: A ladder with a first guardrail locking system having a first pair of side rails with a first set of steps and a second pair of side rails with a second set of steps. The two sets of side rails are rotatably joined together by a pair of hinges at a first pair joining sections and a second pair joining sections. The first pair joining sections and the second pair joining sections have joint points such as indentations which engage the locking key of a first guardrail so that the first guardrail may be fixedly attached to the joining sections. The ladder may also have a second guardrail, wherein the second guardrail is attached to the first guardrail so that two guardrails form a ring around a user standing on a foldable stand of the ladder.

Abstract: A ladder including a first frame, a second frame and a platform assembly. The first frame includes one or more fixed steps. The platform assembly includes a first platform pivotably coupled to the first frame, a second platform pivotably coupled to the first frame, a first linkage coupled between the second frame and one of the first platform and the second platform, and a second linkage coupled to the first platform and the second platform. The ladder is movable between a closed position and an open position.

Abstract: A mountable roller device for ladders. It is capable of integrating and attaching to step ladders, extension ladders, or most other standard ladders. The mountable roller device has a pair of side latches for connecting to the legs of the ladder, and also includes a plug for inserting into the void within the ladder steps of a typical ladder. Once affixed to the ladder, the ladder can be tipped and rolled along the roller wheel of the device. The roller wheel includes a groove to allow the device to be used as a pulley system with the ladder.

Abstract: A scaffold clamp cooperates with a scaffold ledger to accommodate aligned placement of the scaffold clamp to the ledger at modular positions in the length of the ledger. The scaffold clamp includes an inwardly directed alignment lug sized for receipt in one or more clamp locating holes provided in the length of the ledger at modular positions. This arrangement provides accurate securement of the clamp to the ledger at predetermined modular positions and reduces problems that can occur with respect to erection of the scaffold system.

Abstract: A Decelerator Packed Tether constructed with a Bungee Section and a Deployment Section in a combination of materials which, when combined as herein described, and a fall is experienced by the user, the maximum arrest force is one that will present the least amount of impact on the user conventional safety harnesses.

Abstract: A configurable ladder system that can be configured into any of a plurality of different ladder configuration modes and methods for manufacturing and using same. The configurable ladder system includes at least one side rail and at least one support member and can be configured into any of a plurality of different ladder configuration modes. Each support member is disposed on a relevant side rail or on an optional adjustable rail. Depending upon a selected ladder configuration mode of the configurable ladder system, two or more of the support members can be configured to engage respective support regions within an intended work environment of the configurable ladder system. Thereby, the configurable ladder system advantageously can be readily adapted for use within a wide range of different purposes within a large number of a different work environments while enhancing user safety.

Abstract: A ladder rung accessory assembly includes first and second caps have a respective base that is shaped to cover respective rung openings of a selected rung of an extension ladder to reduce acoustic noise during transport. Each cap includes a guide member that is received in the respective opening to position the attached base. Channels formed through the bases and guide members are shaped to receive a cable tie passing through each cap and the selected rung. The first cap is held against the ladder by a head of the cable tie and the second cap is held against the ladder by an internal pawl locking mechanism of the second cap that ratchets against a toothed tape section of the cable tie.

Abstract: A mobile recreational lift system, comprising a first lift vehicle and a second lift vehicle, each lift vehicle having an observation platform for carrying passengers, and an articulating lift mechanism for elevating the observation platform above a ground surface. The lift vehicles are positioned at an observation site in a paired configuration, allowing the observation platforms of both vehicles to be elevated simultaneously while retaining the ability to be independently controlled. The lift mechanisms are also adapted to move the observation platforms laterally, allowing the observation platforms to be placed in close proximity to allow the passengers to interact. If one of the lift vehicles malfunctions, the other lift vehicle may immediately position its observation platform to aid the passengers of the malfunctioning vehicle. Cameras mounted on each observation platform are adapted to capture images of the other observation platform and the passengers therein, from a variety of perspectives.

Abstract: An electrical safety system and method is provided which includes a flexible electrical safety vest, a lifeline coupled with the vest in various configurations, and leg straps. The electrical safety vest includes a number of loops which are used to couple the lifeline in a variety of relationships that enable different types of maneuvering of a worker with relation to a hazard. Various embodiments of the invention can be used to rapidly and safety remove a worker from proximity to an immediate threat to their life, health, or safety. Direct and indirect extraction from a danger are enabled. A variety of methods are also provided for operating various embodiments of the invention.

Abstract: A brake assembly comprises a brake plate including a plurality of radially-extending brake tabs, and an extension member extending at least partially through the brake plate. The extension member is movable relative to the brake plate such that the extension member is configured to successively engage the brake tabs. The brake assembly enables one or more forces to be managed or controlled throughout a braking event, such as a fall arrest event.

Abstract: A frame releasably fixable to a ladder for attaching a mast to the ladder, the frame comprising two sub-frames, each sub-frame comprising two legs, each leg including a stud receiving notch and a support bar at one end thereof, the stud receiving notch for limiting rotation of the sub-frame relative to the ladder, with the frame in place on a ladder and the stud receiving notch engaged with a stud provided on the side of the ladder, the support bar for resting on a surface of the ladder, in use, the two sub-frames releasably attachable to one another at the other end thereof to form a socket for receiving the structural mast.

Abstract: Embodiments of a personnel basket for attachment to a crane boom include folding sidewall sections; a rear wall connected to the sidewall sections; a front wall in pivotal connection to one of the folding sidewall sections; a floor in pivotal relation to the rear wall; a stalk integral to the rear wall and including a boom connection; and a cam or stop that transmits floor loads to the stalk. Because of the pivotal relationships, the personnel basket is moveable or foldable in a connected or assembled condition between a deployed (unfolded) state and a folded (fully collapsed) state. When in the deployed and folded states, the walls and floor remain connected to the personnel basket, the walls sharing a same orientation, the floor pivoting toward and away from the rear wall between a horizontal and vertical orientation.