Importance

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Abstract

In accordance with the teachings of the present invention, a robot bumper device coupled to a mobile robot for immobilizing the robot when a predetermined external force is sensed and a robotic bumper system for controlling at least one mobile robot located within an assembly area is provided. The robot bumper device includes at least one constant force spring member having a first portion attached to an outer surface of a mobile robot for providing constant absorption of an external force resulting from a collision between the bumper device and an unsuspecting object. A pressure sensitive electronic switch is mounted to a first surface of a substantially planar plastic member that extends across a predetermined length of the mobile robot. A second portion, opposite the first portion, of the at least one constant force spring member is mounted to a second surface of the plastic member such that the at least one constant force spring member is compressed when the external force resulting from a collision is exerted against the pressure sensitive electronic switch. The switch closes and generates an electric signal for controlling movements of the mobile robot.

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First Claim