ES198613U - Perfected device for the opening and closing of sliding doors. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improved device for opening and closing sliding doors, of the type in which a wide platform must be franked, which consists of two sliding sheets in opposite directions that, when opened, will hide behind two other fixed sheets, characterized by the the fact that all the actuating means for said movement are located above an elongated box configuration constituting the lintel and that includes, among other elements, the sliding guides for support pieces that protrude below and which they frame and hold superiorly each one of the indicated sheets, as well as structural elements of longitudinal support and guide for the horizontal sliding of the upper supports of the leaves, being assembled on the longitudinal elements sets of sprockets and chain sprockets, in the which engage two chains, one for each leaf, which, by the movement received from said electric motor, move in opposite directions to each other, existing in each chain an arm articulated at one end to the straight section thereof and, at the other end, at a part of the sliding structure carrying the leaf, each of said arms being adjustable in length, including the assembly of chain wheels, a spring-loaded swing arm tensioning device, and the assembly of each sliding leaf is completed by a lower sliding guide, embedded in the floor, and which does not occupy the part covered by the platform mentioned, destined to the step of the passers-by. (Machine-translation by Google Translate, not legally binding)