ES240639U - Perfected load elevator. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Enhanced load elevator characterized because it is constituted by a frame composed of two vertical profiles of "U" facing configuration, which are conveniently stiffened between each other and incorporated in a sliding guided assembly between said profiles a platform or loading cart which is hooked to the end of a cable elevator passing through a pulley on the piston of a drive cylinder fixed its other end to the base of the frame whose drive cylinder comprises internally in relation to said piston a centrally orifice plunger while the cylinder itself is in turn orchestrated near the upper end towards an external reservoir establishing the relationship between said plunger and piston with an intermediate spring acting between them while the orifice plunger is confronted with a pressure intake from a motor-pump group on its side the external reservoir communicating the cylinder with a timely pressure outlet to the aforementioned motor-pump group; all this in such a way that the aforementioned motor-pump group causes the actuation of the cylinder to automatically elevate the platform or car of loads, said effective elevation when the platform is loaded, as long as it is not the intermediate spring between the piston and the piston maintains between these an exhaust opening of the pressure that makes the drive inoperative. (Machine-translation by Google Translate, not legally binding)