Bed mode mechanism for aircraft passenger seat
AssigneeJamco Corporation
InventorsMasaji Ozaki, Nozomu Tagami, Sanae Ootake
Life of this patent
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Abstract
An aircraft passenger seat (100) has a seat bottom frame (150), and the seat bottom frame (150) is supported by an eccentric cam (210). A seat back frame (170) which rotates about a support point (250) is provided with a damper mechanism (300). When the seat back frame (170) is tilted forward from an upright position about the support point (250), a gas damper (310) is compressed and prevents rapid tilting. This energy assists force for returning the seat back to the upright position. The eccentric cam (210) rotates and lowers the seat bottom frame (150) so as to prevent cushions from being collapsed. A lock mechanism (400) highly rigidly retains the seat back frame at a bed mode position.
Claims8
A bed mode mechanism for an aircraft passenger seat comprising:
- a frame fixed to a floor surface of an aircraft and supporting two side portions of a structural member of a seat;
- a seat bottom frame comprising a rear portion supported by a first support point on the frame;
- an eccentric cam supporting a lower surface of the seat bottom frame;
- a seat back frame comprising a lower portion and two opposing side portions, the lower portion being supported by a second support point on the frame;
- a head rest frame connected to an upper portion of the seat back frame;
- a lock mechanism for locking the seat back frame at an upright position when the seat back frame is positioned upright and a bed mode position when the seat back frame is tilted forward;
- and
- a damper unit including a damper mechanism provided on both side portions of the seat back frame,
- wherein the damper mechanisms are configured to be compressed and store energy when the seat back frame is tilted from the upright position to the bed mode position and assist a force when returning the seat back frame to the upright position.
Dependencies are inferred from the claim text.