ES1040808U - Sofa bed perfected. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Sofa-bed perfected, which constituting from a general framework of support and support on the soil on which four frames are rolled correlatively between themselves, the first of which is in the position folded housed inside the framework, whereas the second, of very little amplitude, is vertically provided for constituting a separating means with respect to the third frame which is situated horizontally and separately of the first to host between the both folded mattress, while the fourth frame is in that situation of folding vertically and posteriorly determined, forming the support, while in the deployed those four frames are placed correlatively in a horizontal plane above the general framework, with the particularity also that the first frame or bottom is supported in a single arms aspa or scissors, folding and unleadable, to situate that frame in one position evaluation or descent, this is related to the third frame through a side lever, already related to the second frame, from which emerges a arm that is related to the fourth frame, backed, all with means of synchronization that possibiles the correct turns to carry out the folding/deployment of the frames, is characterized because such means of synchronization of the turning movements of the different elements, are constituted by the correlative articulation between three levers, one of these articulated to the end of one of the arms that form the aspa or scissor of support of the first frame, as much as the second lever, articulated with the previous one, is at their time mounted rotating on the first frame, being the third lever articulated on the previous and at the same time linked, also articulally on the arm that extends to the frame of the back, having provided that that articulation of the third the lever is equal to another lever mounted between a fixed piece to the third frame and to a point of the side of the first frame. (Machine-translation by Google Translate, not legally binding)