Somier folding for sofa-bed. (Machine-translation by Google Translate, not legally binding)

摘要

Folding bed for sofa-bed, characterized by the fact of consisting of four articulated that are deployed progressively and successively from the fixed frame component of the foot of the sofa which are folded to three dimensions and from which the first matrix part of the square fixed consists of the base and foot of the back of said sofa and when opening the first fold raises and deploys the first parallelogram whose movement is transmitted to the second through a layered elbow that opens the intermediate support leg and mounts the longitudinal crossbar that by the action of opening the second fold it puts it in extension with the continuation of the longitudinal crosspiece and deploys the terminal closing leg completing the deployment of the third and fourth parallelogram. (Machine-translation by Google Translate, not legally binding)