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US 5,517,706 AGranted
Sofa-bed
OwnerHiroshi Kashima, Osamu Kashimainventors
Life of this patent
Estimating the term…
Abstract
A sofa-bed is comfortable to use in a bed mode and its backrest can be put away in the position so as not to be an obstacle. A movable backrest of the sofa-bed 10 is divided into two movable half backrests 20,22 or a right movable half backrest and a left one, and the sofa-bed can be changed between the bed mode and the sofa mode by positioning movable half backrests 20.22 individually in first positions substantially above a head board 16 and a foot board 18 or in second positions appropriately parallel to an center line extending in longitudinal direction of the sofa bed.
Claims17
A sofa-bed comprising:
- a panel for supporting a mattress;
- a pair of boards provided in a pair of vertical planes and connected to opposite ends of said panel for supporting said panel in a horizontal plane;
- a pair of movable half backrests movable between a first position substantially above said boards in a bed mode and a second position where said half backrests are disposed in a direction substantially parallel to a longitudinal direction of said sofa-bed in a sofa mode;
- and
- moving means connected between said boards and said half backrests and including an electrical apparatus for moving said movable half backrests between said first and second positions.
2 more elements
A sofa-bed comprising:
- a panel for supporting a mattress;
- a pair of boards provided in a pair of vertical planes and connected to opposite ends of said panel for supporting said panel in a horizontal plane;
- a pair of movable half backrests movable between a first position substantially above said boards in a bed mode and a second position where said half backrests are disposed in a direction substantially parallel to a longitudinal direction of said sofa-bed in a sofa mode;
- and
- moving means connected between said boards and said half backrests and including a pair of movable mechanisms for supporting said movable half backrests on said boards at said first position in said bed mode and at said second position in said sofa mode, wherein said movable mechanisms comprises:
- adjusting means for adjusting said movable half backrests supported in said second position at least either in a vertical direction or in a front and back-ward direction and
- a position controlling and break preventing mechanism which prevents breakage of said sofa-bed when excessive weight is loaded on said movable half backrests.
4 more elements
A sofa-bed comprising:
- a panel;
- a pair of boards connected to opposite ends of said panel for supporting said panel in a horizontal plane;
- a pair of movable half backrests;
- and
- moving means connected between said boards and said half backrests for moving said half backrests among a first position where said half backrests are closely piled up one upon another on one of said boards in a bed mode, a second position where said half backrests are arranged in line between said boards in a sofa mode, and an intermediate position where said closely piled up half backrests are substantially parallel to a longitudinal center line of said panel.
2 more elements
A sofa-bed changeable between a bed mode and a sofa mode comprising:
- a) a panel;
- b) a pair of boards connected to both ends of said panel for supporting it in a horizontal plane;
- c) a movable backrest also serving as an armrest mounted on one of said boards;
- and
- d) a backrest mounted on the other board and divided into a fixed half body and a movable half body which is movable between a first position along said other board and a second position substantially parallel to a longitudinal direction of said panel, and
- said movable backrest being movable between a first position along said one of boards and a second position which is close to said movable half body of said backrest located in said second position and extends in said longitudinal direction, and
- in said bed mode, said movable half body of said backrest being held in said its first position and said movable backrest being held in said first position and, in said sofa mode, said movable half body of said backrest being held in said second position and said movable backrest being held in said second position.
4 more elements
A sofa-bed comprising:
- a panel for supporting a mattress;
- a pair of boards provided in a pair of vertical planes and connected to opposite ends of said panel for supporting said panel in a horizontal plane;
- a pair of movable half backrests movable between a first position substantially above said boards in a bed mode and a second position where said half backrests are disposed in a direction substantially parallel to a longitudinal direction of said sofa-bed in a sofa mode;
- and
- moving means connected between said boards and said half backrests and including a pair of movable mechanisms for supporting said movable half backrests on said boards at said first position in said bed mode and at said second position in said sofa mode;
- said movable mechanisms including adjusting means for adjusting said movable backrests at least either in a vertical direction or in a front and back-ward direction or in its longitudinal direction and a position controlling and break preventing mechanism which prevents breakage of said sofa-bed when excessive weight is loaded on said movable backrest by absorbing the load.
3 more elements
Dependencies are inferred from the claim text.