Mechanism for lifting seat
AssigneeGlobal Fabtech (Shanghai) Company Limited
InventorHans Balle CHRISTENSEN
Life of this patent
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Abstract
A mechanism for tilting a seat or support from horizontal to inclined or even vertical. The mechanism tilts a top frame relative to a lower frame including an actuator. The top frame is attached to the lower frame by first and second rigid connections rotatably mounted relative to both the top frame and the lower frame, the first rigid connection is rotatably mounted to the top frame at a first axis and to the lower frame at a second axis. The second rigid connection is rotatably mounted to the top frame at a third axis and to the lower frame at a fourth axis. The actuator is mounted rotatably to the top frame at a fifth axis and also the actuator is mounted rotatably to an arm at a sixth axis, the arm extends from the first axis and the arm rotates together with the first axis.
Claims10
A mechanism for tilting a top frame relative to a lower frame comprising;
- an actuator;
- the
- a top frame is attached to a lower frame by a first rigid connection, and a second rigid connection rotatably mounted relative to both the top frame and the lower frame, wherein the first rigid connection is rotatably mounted to the top frame at a first axis and to the lower frame at a second axis, and the second rigid connection is rotatably mounted to the top frame at a third axis and to the lower frame at a fourth axis;
- wherein the first axis and the third axis are stationary relative to the top frame and the second axis and the fourth axis are stationary relative to the lower frame;
- wherein in a longitudinal direction, the top frame comprises a first half part comprising a first end, and a second half part comprising a second end and upon activation of the actuator, the first end is raised above a level of the second end;
- wherein the actuator is mounted rotatably to the top frame at a fifth axis and also the actuator is mounted rotatably to an arm at a sixth axis, the arm extends from the first axis and the arm rotates together with the first axis.
(canceled)
A chair or a wheelchair comprising:
- a mechanism for tilting a top frame relative to a lower frame comprising;
- an actuator;
- a top frame attached to a lower frame by a first rigid connection and a second rigid connection rotatably mounted relative to both the top frame and the lower frame, wherein the first rigid connection is rotatably mounted to the top frame at a first axis and to the lower frame at a second axis, and the second rigid connection is rotatably mounted to the top frame at a third axis and to the lower frame at a fourth axis;
- wherein the first axis and the third axis are stationary relative to the top frame and the second axis and the fourth axis are stationary relative to the lower frame;
- wherein in a longitudinal direction, the top frame comprises a first half part comprising a first end, and a second half part comprising a second end and upon activation of the actuator, the first end is raised above a level of the second end;
- wherein the actuator is mounted rotatably to the top frame at a fifth axis and also the actuator is mounted rotatably to an arm at a sixth axis, the arm extends from the first axis and the arm rotates together with the first axis;
- and
- a back support which is connected to the top frame or to another part of the chair/wheelchair.
Dependencies are inferred from the claim text.