Rotary recline mechanism
AssigneeB/E Aerospace, Inc.
InventorsAdrian Tarnowski, Krzysztof Slomiany, Lukasz Turek
Life of this patent
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Abstract
A rotary recline mechanism for allowing reclining movement of a first part relative to a second part, the mechanism comprising: a first gear mechanism comprising first and second gear rings having first and second sets of teeth that engage to lock the first and second parts relative to each other and disengage on operation of an actuator to allow relative movement of the first and second parts by application of a force on one of the parts in a first direction, and a second override gear mechanism to allow relative movement of the first and second parts by application of a force in a second direction while the first and second sets of teeth are engaged.
Claims14
A rotary recline mechanism for allowing reclining movement of a first part relative to a second part, the mechanism comprising:
- a first gear mechanism comprising a first gear ring and a second gear ring having a first set of teeth and a second set of teeth, respectively, that engage to lock the first part and the second part relative to each other and disengage on operation of an actuator to allow relative movement of the first part and the second part by application of a force on one of the parts in a first direction, and a second override gear mechanism to allow relative movement of the first part and the second part by application of a force in a second direction while the first set of teeth and second set of teeth are engaged, wherein the second override gear mechanism is a ratchet gear mechanism comprising:
- a second ratchet gear mechanism located within the second gear ring to provide an override function for the rotary recline mechanism whereby the first part relative to the second part can be returned to a start position without disengaging the first set of teeth and the second set of teeth by means of the actuator.
An aircraft seat comprising:
- a seat back adjustable relative to a second part, the second part being one of a seat pan or a seat cushion;
- and
- a rotary mechanism configured to allow reclining movement of the seat back relative to the second part, the rotatory mechanism comprising:
- a first gear mechanism comprising a first gear ring and a second gear ring having a first set of teeth and a second set of teeth, respectively, that engage to lock the seat back and the second part relative to each other and disengage on operation of an actuator to allow relative movement of the seat back and the second part by application of a force on one of the seat back or the second part in a first direction;
- and
- a second override gear mechanism to allow relative movement of the seat back and the second part by application of a force in a second direction while the first set of teeth and the second set of teeth are engaged, wherein the second override gear mechanism is a ratchet gear mechanism comprising:
- a second ratchet gear mechanism located within the second gear ring to provide an override function for the rotary recline mechanism whereby the seat back relative to the second part can be returned to a start position without disengaging the first set of teeth and the second set of teeth by means of the actuator,
- wherein the actuator is provided on or in a seat arm of the aircraft seat.
Dependencies are inferred from the claim text.