Flip door-to-guardrail

Patent metadata

Field	Value
Publication number	US-11773606-B2
Application number	US-201916515425-A
Country	US
Kind code	B2
Filing date	Jul 18, 2019
Priority date	Jul 18, 2019
Publication date	Oct 3, 2023
Grant date	Oct 3, 2023

Abstract

The present disclosure relates systems and methods involving movable/adjustable platforms and/or guardrails. An example system includes a bracket configured to be coupled to a fixed structure having a walking surface. The system also includes a flip door portion rotatably coupled to the bracket and a guardrail portion rotatably coupled to the flip door portion. The system includes a linkage further coupling the flip door portion to the guardrail portion. The system yet further includes 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.

First claim

What is claimed is:

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.

2. The system of claim 1 , wherein the flip door portion is rotatably coupled to the bracket at a flip door pivot.

3. The system of claim 2 , wherein the linkage is coupled to the bracket by way of at least one bracket pin.

4. The system of claim 1 , wherein the linkage comprises a counter-rotating pin, wherein the flip door portion comprises at least one pin stop, wherein while in the retracted configuration, the counter-rotating pin is configured to engage the pin stop.

5. The system of claim 1 , wherein the extended configuration comprises the flip door portion extending substantially parallel along the reference plane and the guardrail portion being stowed substantially flush with respect to a top surface of the flip door portion.

6. The system of claim 1 , further comprising a guardrail support block configured to engage a base portion of the guardrail portion while in the retracted configuration so as to prevent rotation of the guardrail portion in at least one direction.

7. The system of claim 1 , wherein the guardrail portion comprises:
a top rail;
a base rail; and
a plurality of posts coupled to the top rail and the base rail.

8. The system of claim 1 , wherein the actuator comprises an electric ball-screw linear actuator comprising an actuator arm with a throw range between 100 mm to 300 mm.

9. The system of claim 1 , further comprising a remote unit configured to control a position of the actuator, wherein the remote unit comprises a wired remote controller having a user interface, and wherein the user interface comprises at least one button.

10. The system of claim 1 , further comprising a controller, wherein the controller executes instructions so as to carry out operations, the operations comprising:
responsive to receiving information indicative of an extension command, causing the actuator to move the flip door portion, the linkage, and the guardrail portion into the extended configuration; and
responsive to receiving information indicative of a retraction command, causing the actuator to move the flip door portion, the linkage, and the guardrail portion into the retracted configuration.

11. The system of claim 10 , further comprising at least one limit switch, wherein the at least one limit switch is configured to provide information indicative of the flip door portion, the linkage, or the guardrail portion reaching a position limit, wherein causing the actuator to move the flip door portion, the linkage, and the guardrail portion comprises moving the flip door portion, the linkage, and the guardrail portion until receiving the information indicative of the flip door portion, the linkage, or the guardrail portion reaching the position limit.

12. The system of claim 1 , wherein the retracted configuration further comprises the guardrail portion being rotatably extended in a vertical direction away from the flip door portion and the walking surface.

13. The system of claim 1 , wherein the actuator comprises a pneumatic actuator.

14. A deck platform comprising:
a fixed deck platform portion comprising a walking surface, wherein the walking surface defines a reference plane;
a movable deck platform portion comprising:
a bracket coupled to the fixed deck platform portion;
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.

15. The deck platform of claim 14 , wherein the extended configuration comprises the flip door portion extending substantially parallel along the reference plane and the guardrail portion being stowed substantially flush with respect to a top surface of the flip door portion.

16. The deck platform of claim 14 , wherein the linkage comprises a counter-rotating pin, wherein the flip door portion comprises at least one pin stop, wherein while in the retracted configuration, the counter-rotating pin is configured to engage the pin stop.

17. The deck platform of claim 14 , the movable deck platform further comprising a guardrail support block configured to engage a base portion of the guardrail portion while in the retracted configuration so as to prevent rotation of the guardrail portion in at least one direction.

18. The deck platform of claim 14 , wherein the guardrail portion comprises:
a top rail;
a base rail; and
a plurality of posts coupled to the top rail and the base rail.

19. The deck platform of claim 14 , wherein the retracted configuration further comprises the guardrail portion being rotatably extended in a vertical direction away from the flip door portion and the walking surface.

20. The system of claim 1 , wherein the actuator comprises

Assignees

• Boeing Co

Inventors

• Phan Tuan-Vu T

Classifications

• E04G5/14 Primary

  Railings · CPC title

• B64F5/10 Primary

  Manufacturing or assembling aircraft, e.g. jigs therefor · CPC title

• E04G21/3228

  Folding railings for flat roof edge, e.g. to hide the railings from view when not in use · CPC title

• E04G1/00

  Scaffolds primarily resting on the ground · CPC title