A deck system includes a baluster actuator device that moves balusters from an open position to a closed position. The movable balusters are positioned in the open position to at least partially open the baluster gaps between the stationary balusters, and the movable balusters are positioned in the closed position to close the baluster gaps between the stationary balusters. The balusters further include one or more functional modules secured to module inserts defined in the balusters.

A system for assisting a user with navigating a set of stairs includes a pulley system positioned adjacent to the stairs, the pulley system including a first pulley, a second pulley, and an elongated member coupled to and looped around the first pulley and the second pulley. The system further includes a motor coupled to the first pulley, a sensing assembly operatively coupled to the pulley system, the sensing assembly being structured and configured to sense that a force is being applied to or that is about to be applied to the elongated member by the user, and a controller coupled to the motor and the sensing assembly. The controller is structured and configured to, responsive to the sensing assembly sensing the force, turn the motor on to drive the first pulley.

A safety barrier assembly for a parking garage is positioned in proximity to an opening in a floor of the parking garage that accommodates vertical movement of a VRC between floors of the parking garage. The safety barrier assembly has left and right vertical guide columns. A handrail and a knee rail have opposite ends guided for vertical movement in the columns. A bottom rail is connected pivotally to the knee rail and hangs to a position below the knee rail when the knee rail is in the lower position. An actuator causes the bottom rail to pivot up as the knee rail is elevated.

In one embodiment of the present disclosure, a handrail system for a ramp assembly, the handrail system includes first and second handrail posts oriented substantially perpendicular to a ground surface, a handrail portion having first and second ends extending between the first and second handrail posts, wherein the handrail portion is substantially parallel to a ramping surface ramping from a first elevation to a second elevation at a grade, and first and second interfaces at the first and second ends of the handrail portion for interfacing with the first and second handrail posts. In another embodiment of the present disclosure, an adaptor is configured for a handrail portion.

The present disclosure relates to a falling and death leap defense rotating cylinder system, including a supporter; a rotator that is rotatably installed in the supporter, and that inhibits a death leap of a death leap attempter by rotating when grasped by the death leap attempter; and a spiked unit that forms a cutting edge, and that is detachably installed in any one or more of the supporter and the rotator. According to the present disclosure, by the spiked unit detachably installed in the supporter or the rotator, a falling and death leap of a death leap attempter may be inhibited more effectively.

A hinge for a handrail requires two distinct movements for activation: an axial movement, followed by a rotational movement. The requirement for axial movement acts as a releasable lock on the hinge.

A vertical raising safety rail with dual support structure for rail arm bearing. The safety rail includes lower linkage arm assemblies that are connected to a base and to a center rail assembly and configured to raise or lower the center rail assembly relative to the base when a rotational force is applied to the drive shaft. The safety rail also includes upper linkage arm assemblies that are connected to the center rail assembly and to a top rail. The upper linkage arm assemblies are connected to corresponding lower linkage assemblies and are configured to move the top rail relative to the center rail assembly. When the top rail is raised, one or more safety curtains are unfurled from a take-up roller inside the top rail to provide a safety curtain in the vertical plane of the safety rail. Each rail arm assembly includes a dual support structure for supporting a bearing axle.

A hinge for a handrail requires two distinct movements for activation: an axial movement, followed by a rotational movement. The requirement for axial movement acts as a releasable lock on the hinge.

An adjustable deck shelf assembly has repositionable components to enable the assembly to be secured to variably dimensioned and assembled deck railings. A shelf is secured to a hinged shelf support board with tight dimensional tolerances or with a removable locking shaft in a mechanical interference fit to permit removal and storage of the shelf and assembly. Hinged truss shelf supports secured to support legs can be deployed to support the shelf and retracted for storage. An adjustable deck shelf/seat assembly incorporates variable-height outriggers attached to truss shelf supports and a variable-height shelf support board to enable the assembly to be arranged as a shelf or as a seat. The shelf alternatively may be secured to the deck shelf assembly with slots and hooks.

A vertical raising safety rail having a moveable top rail, a base, a movable center rail assembly positioned above the base and below the top rail, a drive shaft, and a motor that provides rotational power to the drive shaft. The safety rail further includes a pair of spaced apart lower linkage arm assemblies that is operatively connected to the base and to the center rail assembly and configured to raise or lower the center rail assembly relative to the base when a rotational force is applied to the drive shaft. The safety rail also includes a pair of spaced apart upper linkage arm assemblies that is operably connected to the center rail assembly and to the top rail. The upper linkage aim assemblies are operably connected to corresponding lower linkage assemblies and are configured to move the upper rail relative to the center rail assembly. When the rotational force is reversed, the safely rail collapses into a compact footprint.