ES134271U - Rig for loading and unloading (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Rigging for loading and unloading, characterized in that it consists essentially of an eccentric part equipped with an arm at the end of which is fixed the end of a double chain when partly wrapping a fixed roller. The double chain passing through two notches of two other rollers located relative to the axis of rotation of the eccentric so that the rotation causes the lifting of the arm extending said chain to an attachment element in which it is fixed with said coupling element subject by a cable that is sent from a line outside the device. The eccentric part is provided with a set of teeth which, when rotated, engages with a movable arm that slides along a slide and carries a lateral arm with a shoe provided with longitudinal grooves and is designed to act by pressing towards a rod located in the shaft. Central part and also has a series of parallel grooves whose section is perpendicular to its axis. On the sides of the sliding body are located within their respective guides and driven by two springs two twin arms designed to push the arm moveable to the outside which reached this position is fixed thanks to a pin that by its own pressure and thanks a chamfering that is provided with the arm of the eccentric is introduced into its corresponding hole leaving immobilized the entire mechanism which can return to its action remaining free by actuating a handle in whose fork the head of said pin is housed. (Machine-translation by Google Translate, not legally binding)