ES218908U - Pneumatic switching device for wristband. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Pneumatic actuator switch device for wrist, characterized in that it is constituted by a flexible and elastic bellows that is located above the top of a pair of conductor plates separated from each other and the bellows, whose plates are conveniently interleaved in the electrical circuit which has to activate the appropriate mechanism, so that said circuit closes when both plates contact each other, allowing the passage of the current; of the internal cavity of whose bellows a conduit or tube of the suitable elasticity joins which, at its opposite end, joins one of the three branches of a "T" hollow part, the other two branches of which are joined respectively to conduits analogous to the previous that by their respective opposite ends are coupled to two "T" pieces, analogous to the previous ones, from whose free branches separate conduits equally analogous to those previously mentioned, each of which communicates with one of the internal, hollow cavities and closed in all the rest of its volume that make up the extremities of the wrist, ideally flexible and elastic so that the pressure made on any of them causes the insufflation of the air towards the described conduits that in turn will make it reach the bellows, whose extension will cause its attack to the superior of the conductor plates that, consequently will contact with the inferior one closing the circuit. (Machine-translation by Google Translate, not legally binding)