Adjustable back and lumbar support
A system is disclosed. The system includes a passenger seat. The passenger seat includes a seatback comprising one or more guide tracks and a headrest configured to couple to the seatback. The headrest includes a head portion and a lumbar portion. The lumbar portion is configured to separate from the head portion and translate to a lumbar portion of the seatback. The lumbar portion includes one or more brackets configured to slide along the one or more guide tracks. The passenger seat further includes a translation assembly mechanically coupled to the seatback and the lumbar portion. The translation assembly includes a cable coupled to the one or more brackets, wherein a movement of the cable corresponds to a translation of the lumbar portion. The translation assembly further includes a cable route. The translation assembly further includes one or more pulleys configured to guide the cable through the cable route.
1. A system comprising:
a passenger seat, wherein the passenger seat comprises:
a seatback comprising one or more guide tracks;
a headrest configured to couple to the seatback and having the appearance of a single cushion, comprising:
a head portion; and
a lumbar portion configured to separate from the head portion and translate to a lumbar region of the seatback, the lumbar portion comprising one or more brackets configured to slide along the one or more guide tracks;
a translation assembly mechanically coupled to the seatback and the lumbar portion, comprising:
a cable coupled to one or more of the one or more brackets, wherein a movement of the cable corresponds to a translation of the lumbar portion;
a cable route; and
two or more pulleys configured to guide the cable through the cable route including:
a lumbar region pulley disposed inferior to the lumbar region; and
a head region pulley disposed superior to the lumbar region and lateral or superior to the head portion;
a seat pan; and
one or more seat legs.
2. The system of claim 1 , wherein the translation assembly further comprises an actuator configured to actuate the cable through the cable route.
3. The system of claim 2 , wherein the actuator is an electric motor.
4. The system of claim 2 , wherein the actuator is a gas spring.
5. The system of claim 1 , wherein the translation assembly is operated manually.
6. The system of claim 1 , further comprising a lock configured to lock the lumbar portion into position relative to the seatback.
7. The system of claim 1 , wherein the head portion is configured to translate vertically along the seatback.
8. The system of claim 1 , wherein the head portion and the lumbar portion are configured to appear as a single unit when the lumbar portion is disposed adjacent to the head portion.
9. A seatback comprising:
one or more guide tracks;
a headrest comprising:
a head portion;
a lumbar portion configured to separate from the head portion and translate to a lumbar region of the seatback, the lumbar portion comprising one or more brackets configured to slide along the one or more guide tracks; and
a translation assembly mechanically coupled to the seatback and the lumbar portion, comprising:
a cable coupled to one or more of the one or more brackets, wherein a movement of the cable corresponds to a translation of the lumbar portion; and
a cable route; and
two or more pulleys configured to guide the cable through the cable route including:
a lumbar region pulley disposed inferior to the lumbar region; and
a head region pulley disposed superior to the lumbar region and lateral or superior to the head portion.
10. The seatback of claim 9 , wherein the translation assembly further comprises an actuator configured to actuate the cable through the cable route.
11. The seatback of claim 10 , wherein the actuator is an electric motor.
12. The seatback of claim 10 , wherein the actuator is a gas spring.
13. The seatback of claim 9 , wherein the translation assembly is operated manually.
14. The seatback of claim 9 , further comprising a lock configured to lock the lumbar portion into position relative to the seatback.
15. The seatback of claim 9 , wherein the head portion is configured to translate vertically along the seatback.
16. The seatback of claim 9 , wherein the head portion and the lumbar portion are configured to appear as a single unit when the lumbar portion is disposed adjacent to the head portion.