Patent ID: 9045906
Filing Date: 2015-06-02
Classification: E04D

Abstract:
1. A collapsible safety railing system to be used with a roof-top hatch opening, the hatch opening having a hatch cover to open and close the hatch opening, the system comprising: a first base member coupled to a base portion of the hatch opening at a first side of the hatch opening; a second base member coupled to the base portion at a second side of the hatch opening opposite the first side; a plurality of post members coupled to each of the first and second base members, respectively, the post members being pivotally coupled to the first and second base members at coupling points proximate perimeter corners of the base portion such that the post members pivot with respect to the first and second base members between a substantially upright position and a substantially collapsed position; a plurality of side rails pivotally coupled to the post members such that at least one side rail extends between the post members on opposing sides of the hatch opening; a gate member coupled to at least one of the post members and configured to be moved between an open and closed position; and a linkage member to link the hatch cover to the collapsible safety railing system to move the post members to the substantially upright position when the hatch cover is in the open position, and to move the post members to the substantially collapsed position when the hatch cover is in the closed position.