| CPC E04G 5/14 (2013.01) [B64F 5/10 (2017.01); E04G 21/3228 (2013.01); E04G 1/00 (2013.01)] | 20 Claims |
|
1. A system comprising:
a bracket configured to be coupled to a fixed structure having a walking surface, wherein the walking surface defines a reference plane;
a flip door portion rotatably coupled to the bracket and having an indentation;
a guardrail portion rotatably coupled to the flip door portion;
a linkage further coupling the flip door portion to the guardrail portion; and
an actuator configured to controllably adjust a configuration of the flip door portion, the linkage, and the guardrail portion between an extended configuration and a retracted configuration with respect to the walking surface,
wherein the retracted configuration comprises the flip door portion disposed substantially perpendicular to the reference plane and the guardrail portion extending away from the flip door portion,
wherein the actuator is coupled to a first member of a first folding arm and a first member of a second folding arm,
wherein the first folding arm and the second folding arm are rotatably coupled to the bracket and a guardrail rotation member,
wherein the actuator is configured to pull the first member of the first folding arm and the first member of the second folding arm together to stow the guardrail portion, and is further configured to push the first member of the first folding arm and the first member of the second folding arm apart to extend the guardrail portion, and
wherein based on the flip door portion, the linkage, and the guardrail portion being in the extended configuration, the linkage and guardrail portion are hidden within the indentation.
|