Self-stowage assembly for a seat
AssigneeAMI Industries, Inc.
InventorsSreekanth Koti Ananda Rao, Pradeep Acharya
Life of this patent
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Abstract
A seat with self-stowage capability is provided. The seat includes a seat pan lever which is rotatable between stowed and open positions, a fixed seat structure and an elastic assembly. The fixed seat structure includes an annulus. The elastic assembly includes a damper and an arc-spring disposable within the annulus to permit first rotations of the seat pan lever from the stowed position to the open positions and to urge second rotations of the seat pan lever from the open positions to the stowed position.
Claims20
A seat with self-stowage capability, the seat comprising:
- a seat pan lever which is rotatable between stowed and open positions;
- a fixed seat structure comprising an annulus;
- and
- an elastic assembly comprising a damper and an arc-spring disposable within the annulus to permit first rotations of the seat pan lever from the stowed position to the open positions and to urge second rotations of the seat pan lever from the open positions to the stowed position,
- wherein the arc-spring comprises:
- a major longitudinal curvature that follows a corresponding curvature of the annulus;
- and
- a minor curvature, which is defined along the major longitudinal curvature, and which is constrained within radial and axial dimensions of the annulus.
A seat with self-stowage capability, the seat comprising:
- a seat pan comprising a lever, a boss coupled with the lever and defining an axis about which the lever is rotatable and a first stopper coupled with the boss;
- a fixed seat structure comprising a second stopper and an annulus in which the second stopper is fixed and the first stopper is disposable;
- and
- an elastic assembly comprising an arc-spring and being disposable within the annulus between the first and second stoppers to permit first movements of the first stopper through the annulus relative to the second stopper in association with first rotations of the lever about the axis and to urge second movements of the first stopper through the annulus relative to the second stopper in association with second rotations of the lever about the axis,
- wherein the arc-spring comprises:
- a major longitudinal curvature that follows a corresponding curvature of the annulus;
- and
- a minor curvature, which is defined along the major longitudinal curvature, and which is constrained within radial and axial dimensions of the annulus.
An aircraft, comprising:
- a fixed wall structure;
- and
- a seat with self-stowage capability, comprising:
- a seat pan comprising a lever, a boss coupled with the lever and defining an axis about which the lever is rotatable relative to the fixed wall structure between stowed and open positions and a first stopper coupled with the boss;
- a fixed seat structure which is fixed to the fixed wall structure and comprises a second stopper and an annulus in which the second stopper is fixed and the first stopper is disposable;
- and
- an elastic assembly comprising an arc-spring and being disposable within the annulus between the first and second stoppers to permit first movements of the first stopper through the annulus relative to the second stopper in association with first rotations of the lever about the axis and to urge second movements of the first stopper through the annulus relative to the second stopper in association with second rotations of the lever about the axis,
- wherein the arc-spring comprises:
- a major longitudinal curvature that follows a corresponding curvature of the annulus;
- and
- a minor curvature, which is defined along the major longitudinal curvature, and which is constrained within radial and axial dimensions of the annulus.
Dependencies are inferred from the claim text.