17-01-2019 дата публикации
Номер: US20190014910A1
System for convertible bunk beds comprising a base frame (); an upper frame () of such dimensions that it can house a first mattress (), movable between a first position in which the same is lowered and the system is in sofa configuration and a second position, substantially on the vertical of said first position, in which said upper frame () is lifted and the system is in bunk bed configuration; a third frame () of such dimensions that it can house a second mattress (), constrained so that it is comprised between said base frame () and said upper frame (), characterized in that the constraint of said upper frame () to said base frame () occurs by means of a kinematics with double four-bar linkage which allows to move said upper frame () while keeping it constantly in horizontal position. 1. A system for convertible bunk beds , comprising:{'b': '11', 'a base frame ();'}{'b': 21', '211', '21, 'an upper frame () of such dimensions that it can house a first mattress (), movable between a first position in which the same is lowered and the system is in sofa configuration and a second position, substantially on the vertical of said first position, in which said upper frame () is lifted and the system is in bunk bed configuration;'}{'b': 25', '251', '11', '21, 'a third frame () of such dimensions that it can house a second mattress (), constrained so that it is comprised between said base frame () and said upper frame (),'}{'b': 21', '11', '21', '11', '14', '12', '13, 'wherein a constraint of said upper frame () to said base frame () occurs by means of a kinematics with double four-bar linkage which allows to move said upper frame () while keeping it constantly in horizontal position, and in that said kinematics with double four-bar linkage comprises: a first four-bar linkage made up of the base frame (), a bar () parallel thereto and two further bars (, ) constrained so that they form the other sides of the four-bar linkage;'}{'b': 22', '23', '12', '13', '11', '21, 'a ...
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