Sustainability device for a life line (Machine-translation by Google Translate, not legally binding)

Lifting device for a lifeline, the lifeline being constituted, as is conventional, by means of a body or rope that at one end is linked to the harness of an operator that has to work at height, and at the other end it is linked to a fixed element so that the operator, in the event of a fall, is suspended from the lifeline, being provided for its application in those cases in which there is no fixed element to be able to hook the lifeline, as is the case of the assembly/disassembly of counterweights of mobile cranes, characterized in that it is constituted from a pole of variable length, whose lower end is anchored on the chassis of the corresponding crane or on the counterweight to be manipulated, presenting the upper end from said pole an almost horizontal prolongation and with the ability to tilt, so that at the free end of such extension the lifeline with the retractable safety device, being that upper section of the pole equipped with free-turning movement to allow the mobility of the operator linked to the lifeline around the pole itself, and having blocking means to prevent the rotation of that upper section in case of subjecting it to a weight higher than a pre-established one, which originates before the fall of the operator that will be suspended from the lifeline. (Machine-translation by Google Translate, not legally binding) 1. Dispositivo de sustentación para una línea de vida, estando la línea de vida constituida, como es convencional, mediante un cuerpo o cuerda que por un extremo se vincula al arnés de un operario que ha de trabajar en altura, y por el otro extremo se vincula a un elemento fijo para que el operario, en caso de caída, quede suspendido de la línea de vida, estando prevista para su aplicación en aquellos casos en los que no exista elemento fijo para poder enganchar la línea de vida, como es el caso del montaje/desmontaje de contrapesos de grúas móviles, caracterizado porque se constituye a partir de una pértiga de longitud variable, cuyo extremo inferior está anclado sobre el chasis de la correspondiente grúa o en el propio contrapeso que se pretende manipular, presentando el extremo superior de dicha pértiga una prolongación prácticamente horizontal y con facultad de bascular, de manera que en el extremo libre de tal prolongación va suspendida la línea de vida con el retráctil de seguridad correspondiente, estando ese tramo superior de la pértiga dotado de movimiento de giro libre para permitir la movilidad del operario vincul