Rotating retractable step system
AssigneeThe Boeing Company
InventorsChristopher B. Singleton, Joshua Yu-Hu Lee, Scott Edward Coburn
Life of this patent
Estimating the term…
Abstract
A rotating retractable step system positioned within a cutout of a wall is presented. The rotating retractable step system comprises a foot pedal and a support shaft. The foot pedal is configured to be stowed in a vertical orientation within the cutout of the wall, and to rotate between the vertical orientation and a horizontal orientation. The support shaft is associated with the foot pedal, such that movement of the support shaft extends the foot pedal outwardly away from the cutout, or retracts the foot pedal towards the cutout.
Claims20
A step system positioned within a wall, such that the step system comprises:
- an insert configured to fit within a cutout in the wall;
- a first tension spring attached to:
- an interior of the insert;
- and
- a first end of a shaft;
- a second end of the shaft rotatably connected to a foot pedal, such that with the foot pedal in a stowed position a step surface of the foot pedal rests within and parallel to a face of the wall;
- a grip connected to linkage bars that connect to:
- a first end of a second tension spring anchored, at a second end of the second tension spring, within the insert;
- and
- a first collar that encircles the shaft such that:
- the shaft translates within the first collar;
- and
- in the stowed position, a trim surface of the grip remains flush with a trim surface of the wall;
- a second collar anchored onto the shaft and aligned with the first collar;
- and
- a locking mechanism configured to retain the foot pedal outside of the wall with the step surface perpendicular to the face of the wall in a deployed position.
A step system configured to transition between a stowed position and a deployed position, such that the step system that comprises:
- an insert configured to fit within a cutout in a wall;
- a first tension spring attached to:
- an interior of the insert at a first end of the first tension spring;
- and
- to a first end of a shaft at a second end of the first tension spring;
- a second end of the shaft rotatably connected to a foot pedal on a side of the foot pedal opposite a trim surface of the foot pedal, such that with the foot pedal in a stowed position, and a step surface of the foot pedal rests within and parallel to a face of the wall;
- a grip connected, on a side of the grip opposite a trim surface of the grip, to a first end of a first linkage bar that extends, parallel to the shaft, into the wall and connects, at a second end of the first linkage bar, to a second linkage bar that connects to:
- a first end of a second tension spring anchored, at a second end of the second tension spring, within the insert;
- and
- a first collar that encircles the shaft such that:
- the shaft translates within the first collar;
- and
- in the stowed position, the trim surface of the grip remains flush with the trim surface of the wall;
- a second collar anchored onto the shaft such that a deployment of the grip out of the wall translates the first collar into contact with the second collar such that the side of the foot pedal opposite the trim surface of the foot pedal extends out beyond a trim surface of the wall;
- a locking mechanism configured to the foot pedal outside of the wall with the step surface perpendicular to the face of the wall in the deployed position;
- and
- an actuator configured to initiate a movement of the foot pedal, such that the actuator comprises the grip.
A method for providing a step pedal on a wall, the method comprising:
- extending a foot pedal outwardly away from a stowed position within a cutout in the wall via extending, via pulling a grip in an insert in the wall out of the insert, a shaft away from the insert in the wall via contacting a collar on the shaft with a collar on an end of linkage bars inside the insert, the shaft being associated with the foot pedal and connected, via the collar on the end of the linkage bars translating along the shaft, the linkage bars being connected, at an end of the linkage bars opposite the end of the linkage bars connected to the collar, to a side of the grip opposite a trim surface of the grip, such that a step surface of the foot pedal remains in a vertical orientation in the stowed position;
- rotating the foot pedal from the vertical orientation to a horizontal orientation;
- restricting a rotation of the foot pedal from the horizontal orientation using a locking mechanism comprising a number of notches in a face of the wall;
- and
- locking the foot pedal against the rotation via inserting the foot pedal into notches in the face of the wall.
Dependencies are inferred from the claim text.