Abstract: A collapsible sofa bed movable between an expanded configuration and a collapsed configuration includes a frame including a plurality of scissor assemblies. Each scissor assembly includes a first frame member pivotally coupled to a second frame member at a pivot point. Frame members of adjacent scissor assemblies are coupled to one of a first connector assembly and a second connector assembly. At least two backrest support members are coupled to the frame. Each backrest support member is slidably coupled to a corresponding first frame member and has a lower end that is pivotally coupled to a corresponding second frame member. Each backrest support member is pivotally movable with respect to the corresponding second frame member.

Abstract: A collapsible bed frame includes a first cross unit including a first link member pivotally coupled to a second link member at a first pivot point, and a support unit operatively coupled to the first cross unit. The support unit includes a first slider that is slidably coupled to the first link member. A first support member has a first end that is pivotally coupled to the second link member and an opposing second end that is pivotally coupled to the first slider. A second slider is slidably coupled to the first support member. A second support member has a first end that is pivotally coupled to at least one of the second link member and a connector operatively coupled to the second link member, and an opposing second end that is pivotally coupled to the second slider.

Abstract: A collapsible structure is movable between an expanded configuration and a collapsed configuration. The collapsible structure includes a plurality of collapsible scissor assemblies. Each scissor assembly includes a first frame member pivotally coupled to a second frame member at a first pivot point. Frame members of adjacent scissor assemblies are coupled to a first connector assembly or a second connector assembly. A support assembly is coupled to a first scissor assembly and includes a member pivotally coupled at a first end to the first connector assembly or the first frame member and slidably coupled at an opposing second end to the second frame member.

Abstract: A collapsible bed frame includes a first cross unit including a first link member pivotally coupled to a second link member at a first pivot point, and a support unit operatively coupled to the first cross unit. The support unit includes a first slider that is slidably coupled to the first link member. A first support member has a first end that is pivotally coupled to the second link member and an opposing second end that is pivotally coupled to the first slider. A second slider is slidably coupled to the first support member. A second support member has a first end that is pivotally coupled to at least one of the second link member and a connector operatively coupled to the second link member, and an opposing second end that is pivotally coupled to the second slider.

Abstract: A collapsible sofa bed movable between an expanded configuration and a collapsed configuration includes a frame including a plurality of scissor assemblies. Each scissor assembly includes a first frame member pivotally coupled to a second frame member at a pivot point. Frame members of adjacent scissor assemblies are coupled to one of a first connector assembly and a second connector assembly. At least two backrest support members are coupled to the frame. Each backrest support member is slidably coupled to a corresponding first frame member and has a lower end that is pivotally coupled to a corresponding second frame member. Each backrest support member is pivotally movable with respect to the corresponding second frame member.

Abstract: A collapsible structure is movable between an expanded configuration and a collapsed configuration. The collapsible structure includes a plurality of collapsible scissor assemblies. Each scissor assembly includes a first frame member pivotally coupled to a second frame member at a first pivot point. Frame members of adjacent scissor assemblies are coupled to a first connector assembly or a second connector assembly. A support assembly is coupled to a first scissor assembly and includes a member pivotally coupled at a first end to the first connector assembly or the first frame member and slidably coupled at an opposing second end to the second frame member.