US 11,866,176 B2
Variable reclination backrest for a seat assembly
Mark L. Cloud, Seattle, WA (US); Christopher Edward Plass, Snohomish, WA (US); Raymond Roeder, Everett, WA (US); Dean Hettick, Snohomish, WA (US); and Anis Noorani, Everett, WA (US)
Assigned to The Boeing Company, Chicago, IL (US)
Filed by THE BOEING COMPANY, Chicago, IL (US)
Filed on Aug. 2, 2019, as Appl. No. 16/529,957.
Claims priority of provisional application 62/825,874, filed on Mar. 29, 2019.
Prior Publication US 2020/0307800 A1, Oct. 1, 2020
Int. Cl. B64D 11/06 (2006.01)
CPC B64D 11/064 (2014.12) [B64D 11/0696 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A seat assembly comprising:
a backrest that is configured to recline over a reclination range; and
a variable reclination range limiter that is configured to selectively adjust a limit of the reclination range, wherein the variable reclination range limiter is coupled to a recline piston and a pivot axle that defines a pivot point for the backrest, and wherein the variable reclination range limiter comprises:
a stroke-limiting sleeve mounted on a shaft of the recline piston, wherein the recline piston is configured to push and pull with respect to a bracket of the backrest about the pivot axle; and
a securing device coupled to the stroke-limiting sleeve, wherein the securing device passes through a portion of the stroke-limiting sleeve and engages a portion of the shaft of the recline piston to lock the stroke-limiting sleeve in position.