Patent ID: 11920395
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC E  G  F  H | IPC E  F

Claim 19:
20. A foldable electronic device comprising:
a first housing;
a second housing provided in a shape corresponding to a shape of the first housing; and
a hinge module rotatably connecting the first housing to the second housing, the hinge module configured to fix the first housing and the second housing at a certain opening angle,
wherein the hinge module includes:
a first fixed gear fixed without rotation and configured to allow a rotation of a counterpart gear in a first direction, and limit a rotation of the counterpart gear in a second direction opposite to the first direction,
a second fixed gear fixed together with the first fixed gear and configured to limit a rotation of a counterpart gear in the first direction, and allow a rotation of the counterpart gear in the second direction,
a first guiding gear provided to rotate together with the first housing and configured to allow a rotation of a counterpart gear in the second direction and limit a rotation of the counterpart gear in the first direction,
a second guiding gear provided to rotate together with the second housing and configured to limit a rotation of a counterpart gear in the first direction and limit a rotation of the counterpart gear in the second direction,
a first rotary gear unit including a first gear engaged with the first fixed gear, a second gear engaged with the first guiding gear, and a first elastic member arranged between the first gear and the second gear, and
a second rotary gear unit including a third gear engaged with the second fixed gear, a third gear engaged with the second guiding gear, and a second elastic member arranged between the third gear and a fourth gear.