Bumper structure of cleaning robot

PURPOSE: A bumper structure of a robot cleaner is provided to figure out position and contact of obstacles using a resist film and a metal film and to reduce production costs by reducing a number of components. CONSTITUTION: A bumper structure of a robot cleaner comprises a body(10), a bumper(20), a resist film(30), and a metal film(40). The resist film is formed between the body and the bumper and is fixed in the body. The metal film is formed between the body and the bumper. As the metal film is fixed to the bumper if obstacles are contacted to the bumper, the metal film is deformed with the bumper and is contacted to the resist film to measure resistance value. The bumper is made by a flexible material.