Patent ID: 7676859

Claim:
Folding bed, covered with a mattress ( 9 ) and comprising a head frame ( 8 ), back frame ( 7 ), and foot frame ( 6 ) which are connected to one another in an articulated manner and are arranged in a collapsed state in a basic frame ( 1 ) or box such that they can be raised and lowered by means of a lifting mechanism ( 4 ), characterized in that the lifting mechanism ( 4 ) comprises scissors-type lifting arrangements, spring-loaded for lifting action, which are provided on both sides of the head frame ( 8 ) respectively, a first scissors arm ( 47 ) of each lifting arrangement being articulated, at the bottom end, on the basic frame, where a horizontally movable second scissors arm ( 48 ) is supported, the top end of which is articulated at the end of the head frame ( 8 ), and that the first scissors arm ( 47 ) is articulated, at its top end, on a short block link ( 43 ) at the back-part head-frame end with an articulation ( 44 ) on which acts a link plate ( 42 ) which is connected in an articulated manner to a control arm ( 41 ) and is connected to a spacing head frame connector ( 20 ) of the head frame ( 8 ) and of the back frame ( 7 ), and is arranged in such a way, that when the head frame connector ( 20 ) is brought to a horizontal position, the block link ( 43 ) is in a dead-centre position of the scissors articulation ( 44 ), and that when the connector is in an inclined position the block link ( 43 ) is lead out from the dead-centre position, so that the lifting mechanism ( 4 ) holds the head frame ( 8 ) in a lowered position.