Electronic device comprising hinge device

An electronic device comprising:

• a first housing;
• a second housing;
• at least one hinge device foldably connecting the first and the second housings;
• at least one memory storing one or more instructions;
• and
• at least one processor electrically connected to the at least one memory and the at least one hinge device, wherein the at least one processor is configured to execute the one or more instructions,
• wherein the at least one hinge device comprises a first hinge device and a second hinge device, and each of the first hinge and the second hinge comprises:
• a bracket comprising a first rail and a second rail spaced apart from the first rail;
• a first rotating member comprising a first rotating portion fastened to the first rail and configured to rotate with respect to the bracket, and a first gear formed on the first rotating portion;
• a second rotating member comprising a second rotating portion fastened to the second rail and configured to rotate with respect to the bracket;
• a drive device comprising a second gear meshing with the first gear and configured to rotate accordingly;
• a first limiting member on the bracket, the first limiting member comprising a first contact portion and a first pressurizing member comprising an elastic material, wherein the first limiting member is configured to pressurize the first contact portion against the first rotating portion;
• and
• a second limiting member on the bracket, the second limiting member comprising a second contact portion and a second pressurizing member comprising an elastic material, wherein the second limiting member is configured to pressurize the second contact portion against the second rotating portion, and
• wherein the one or more instructions, when executed by the at least one processor, cause the electronic device to control the drive device of the first hinge device and the drive device of the second hinge device to cause the first hinge device and the second hinge device to each rotate with a same angular displacement.

An electronic device comprising:

• a first housing;
• a second housing;
• and
• a hinge device foldably connecting the first and the second housings,
• wherein the hinge device comprises:
• a bracket comprising a first rail and a second rail spaced apart from the first rail;
• a first rotating member comprising a first rotating portion fastened to the first rail and configured to rotate with respect to the bracket, and a first gear formed on the first rotating portion;
• a second rotating member comprising a second rotating portion fastened to the second rail and configured to rotate with respect to the bracket, and a second gear formed on the second rotating portion;
• an idle gear meshing with the first and the second gears and configured to interwork rotation of the first and the second gears;
• and
• a drive device configured to rotate the idle gear.