Folding seat assembly for mounting to risers
AssigneeBlue Cube (Gb) Ltd.
InventorsRussell Plant, Daniel Chi Man Ho
Life of this patent
Estimating the term…
Abstract
A seat includes a seat base including a seat base linkage, a backrest including a seat back linkage, a connector rod, and a frame. The seat base linkage is pivotally secured to the seat back linkage at a first pivot point. The seat base linkage is pivotally secured to the connector rod at a second pivot point. The connector rod is pivotally secured to the frame at a third pivot point. The seat back linkage is pivotally secured to the frame at a fourth pivot point. When the seat is adjusted between an opened position and a closed position, the first pivot point describes the arc of a circle.
Claims22
A seat, the seat comprising:
- a seat base including a seat base linkage;
- a backrest including a seat back linkage;
- a connector rod;
- a frame;
- wherein the seat base linkage is pivotally secured to the seat back linkage at a first pivot point;
- wherein the seat base linkage is pivotally secured to the connector rod at a second pivot point;
- wherein the connector rod is pivotally secured to the frame at a third pivot point;
- wherein the seat back linkage is pivotally secured to the frame at a fourth pivot point;
- and
- wherein, when the seat is adjusted between an opened position and a closed position, the first pivot point describes the arc of a circle.
A seat, the seat comprising:
- a seat base including a seat base linkage;
- a backrest including a seat back linkage;
- a connector rod;
- a frame comprising a first arm and a second arm that is spaced from the first arm;
- wherein the seat base, the backrest, and the connector rod are disposed between the first arm and the second arm of the frame;
- wherein a first pivot pin pivotally attaches the seat base linkage and the seat back linkage at a first pivot point;
- wherein a second pivot pin pivotally attaches the seat base linkage and the connector rod at a second pivot point;
- wherein a third pivot pin pivotally attaches the connector rod and the frame at a third pivot point;
- wherein a fourth pivot pin pivotally attaches the seat back linkage and the frame at a fourth pivot point;
- wherein, when the seat is moved from a closed position toward an opened position, (i) the seat base pivots relative to the seat back at the first pivot point in a first pivotal direction, (ii) the seat base pivots relative to the connector rod at the second pivot point in the first pivotal direction, (iii) the connector rod pivots relative to the frame at the third pivot point in a second pivotal direction that is opposite the first pivotal direction and (iv) the seat back pivots relative to the frame at the fourth pivot point in the second pivotal direction;
- and
- wherein, with the seat in the opened position, the seat base extends at a first angle relative to the first arm of the frame and the second arm of the frame.
Dependencies are inferred from the claim text.