Patent attributes
A device for connecting interchangeable pneumatic tools to manipulators is provided. The device includes a body, fixable to a manipulator, provided with a plurality of seats for accommodating pins for engaging a tool, ducts for feeding a working fluid to the tool, where the ducts extend in the device body, an engaging mechanism which can be activated for constraining and releasing, respectively, the tool to/from the device, and means for closing the ducts. For safety purposes the device is arranged such that the activation of the engaging mechanism for unlocking the tool is always achievable upon the reaching of the complete closing of the ducts by the respective closing means. This way a quick depressurization of the tool is prevented from occurring at the separation from the device, this latter circumstance being conventionally dangerous for the tool replacement operator.
