Installation for displacing etching tool to perform etching operation on motor vehicle, has locking device displacing beam freely with respect to motor in unlocked position according to predetermined stroke when motor is stopped

摘要

The installation has a beam (1) movable with respect to a guiding support (2) and connected to a motor (3) to drive the beam in a horizontal direction. An etching tool (5) is suspended at the beam, where the motor is connected to the beam by a locking device (6). The locking device establishes a rigid connection between the motor and the beam in a locked position, and allows the beam to be freely displaced with respect to the motor in an unlocked position according to a predetermined stroke when the motor is stopped.