Importance

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Abstract

A robotic arm mechanism provides motion to an end effector via a motor driving a drive pulley. The drive pulley is connected by a belt structure to drive a driven pulley. The motor is mounted to a bracket. The bracket is slidably mounted to a base plate. The bracket is positioned relative to the base plate to provide desired tension in the belt structure. The bracket is fastened to the base plate by a bolt structure which extend from the base plate orthogonally to the motor. A threaded bore extends fully through the bracket from a distal mouth thereof removed from the driven pulley. The bore has an axis which is located generally in a plane which is contiguous with or parallel to the axes of the respective drive and driven pulleys. The bore extends from an opening facing the distal side downwardly to the base plate and towards the axis of the driven pulley. A set screw is engaged with the bore and extends through it such that the screw's tip forcibly engages with the base plate.

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First Claim