Patent ID: 6971141
Filing Date: 2005-12-06
Classification: A47L,B25J,B62D

Abstract:
1. A surface traveling mobile apparatus which moves by an endless track belt trained around a case thereby traveling on a surface by rotation of wheels driven by a power source, the surface traveling mobile apparatus comprising: vacuum chambers installed to be attached to sides of the wheels; a vacuum tube connecting the vacuum chambers to each other; a vacuum pump formed in a part of the vacuum tube for intaking and exhausting air, and suction mechanisms installed along the endless track belt at predetermined intervals, valve driven by contacting the wheels, and vacuum attached to the surface by the vacuum pump intaking and exhausting air wherein the vacuum pump comprises: a motor for generating a rotary force; a rotating magnet, in which the N pole and the S pole are alternately arranged and which is rotated by the rotary force of the motor, the rotating magnet being adapted to generate a varying magnetic field; a fixed magnet arranged to be opposite to the rotating magnet; a pump having a diaphragm operating by attraction and repulsion forces between the rotating magnet and the fixed magnet; a vacuum pump chamber, from which air is pumped outside due to movement of the diaphragm; and directional valves installed in openings at both ends of the vacuum pump chamber for permitting the pumped air to flow in only one direction.