Patent ID: 8322469

Claim:
A bidirectional moving micro-robot system comprising: a first body having a plurality of legs foldably/unfoldably connected thereto; a second body having a plurality of legs foldably/unfoldably connected thereto; and a connection member having both end portions respectively connected to the first and second bodies, wherein the structure of the second body is identical to the structure of the first body; wherein a first motor in the first body or a second motor in the second body is driven to control the length of the connection member so that the micro-robot system is moved in a forward or backward direction; wherein a first spring screw is connected to a first shaft of the first motor, a second spring screw is connected to a second shaft of the second motor, the first spring screw is fastened to the connection member through a first screw thread formed on an outer circumferential surface of the first spring screw, and the second spring screw is fastened to the connection member through a second screw thread formed on an outer circumferential surface of the second spring screw; and wherein the length of the connection member exposed between the first and second bodies is controlled as the connection member is moved along the first screw thread or the second screw thread by rotation of the first shaft of the first motor or the second shaft of the second motor.