The hinge and gear.
"15. The foldable electronic device defined in claim 14 wherein the first hinge portion has a first linkage member and wherein the second hinge portion has a second linkage member.
16. The foldable electronic device defined in claim 15 wherein the first linkage member holds the first gear of the first hinge portion against the curved surface while the first gear of the first hinge portion walks along the curved surface and wherein the second linkage member holds the first gear of the second hinge portion against the curved surface while the first gear of the second hinge walks along the curved surface.
17. A foldable electronic device, comprising: a housing having a first housing portion and a second housing portion that rotate with respect to each other; a flexible display having a first portion that overlaps the first housing portion and a second portion that overlaps the second housing portion; and a hinge with toothed structures, wherein the hinge has a first hinge portion coupled to the first housing portion and a second hinge portion coupled to the second housing portion, wherein the first hinge portion is configured to allow the flexible display to bend about a first pivot point as the first housing portion is rotated and wherein the second hinge portion is configured to allow the flexible display to bend about a second pivot point as the second housing portion is rotated.
18. The foldable electronic device defined in claim 17 wherein the toothed structures comprise: first and second gears in the first hinge portion and first and second gears in the second hinge portion.
19. The foldable electronic device defined in claim 18 wherein the toothed structures include a rack member with a curved surface and wherein the first gear of the first hinge portion and the first gear of the second hinge portion have teeth that engage teeth on the curved surface of the rack.
20. The foldable electronic device defined in claim 19 wherein the second gear of the first hinge portion is fixedly attached to the first housing portion and has teeth that engage the teeth of the first gear of the first hinge portion and wherein the second gear of the second hinge portion is fixedly attached to the second housing portion and has teeth that engage the teeth of the first gear of the second hinge portion.
21. A foldable electronic device, comprising: a housing having a first housing portion and a second housing portion that rotate with respect to each other; a flexible display having a first portion that overlaps the first housing portion and a second portion that overlaps the second housing portion; and a hinge with toothed structures including a rack member with a curved surface, wherein the hinge is coupled between the first and second housing portions and is configure to allow the flexible display to bend about a pivot point as the first and second housing portions are rotated with respect to each other.
22. The foldable electronic device defined in claim 21 wherein the toothed structures comprise first and second gears in the first hinge portion and first and second gears in the second hinge portion, wherein the second gear of the first hinge portion is fixedly attached to the first housing portion, wherein the second gear of the second hinge portion is fixedly attached to the second housing portion, and wherein the second gear of the first hinge portion and the second gear of the second housing portion have teeth that engage teeth on the curved surface of the rack."
JUICE
