US 11,940,851 B2
Hinge mechanism for foldable devices with flexible displays
Samarth Alva, Bangalore (IN); and Yogesh Channaiah, Mandya (IN)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Sep. 26, 2020, as Appl. No. 17/033,736.
Prior Publication US 2021/0011527 A1, Jan. 14, 2021
Int. Cl. G06F 1/16 (2006.01); H04M 1/02 (2006.01); H05K 5/02 (2006.01); H05K 5/03 (2006.01)
CPC G06F 1/1681 (2013.01) [G06F 1/1618 (2013.01); G06F 1/1647 (2013.01); H04M 1/0268 (2013.01); H05K 5/0226 (2013.01); H05K 5/03 (2013.01); G06F 2200/1612 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A hinge apparatus comprising:
first and second curved rack apparatuses, each curved rack apparatus defining an arcuate surface and an arcuate set of gear teeth concentric with the arcuate surface, the radius of curvature of the arcuate set of gear teeth being non-uniform; and
a gear assembly comprising:
a first gear;
a second gear;
a third gear coupling the first and second gears;
a fourth gear coupling the first gear and the arcuate set of gear teeth of the first curved rack apparatus; and
a fifth gear coupling the second gear and the arcuate set of gear teeth of the second curved rack apparatus.