Sofa wall beds
A sofa bed assembly comprises a carcass having an inside, outside and interstitial interface. Mechanical moving parts comprise a bed base mount assembly and gas strut all outside the carcass and interface mounted. A base supports a mattress held by base sidewalls, vertical within and filling the carcass with the sofa bed closed. An armrest supports a sitter's arm in the closed assembly and as is a proximal bed support in the open assembly. Pivoted leg supports at the end of the bed base rotate as distal bed supports. Alternatively, a sofa is moved to the end of the bed base as distal bed support. An armrest extension extends the armrest for the closed assembly and folds through 90° for the open assembly allowing the armrest to act as the proximal bed support. Armrest shields cover mechanical moving parts.
1. A sofa bed comprising:
a carcass having first and second sidewalls and top and bottom panels, the carcass providing an inside and an outside, and also providing an interface between the inside and the outside;
a bed base, rotatable to lie coplanar with the interface when the bed is in the closed position and at a right angle to the interface coplanar with a floor when the bed is in an open position;
a sofa base and a sofa back disposed to enable a person to sit thereon when the bed is in a closed position and foldable against one another beneath the bed base when the bed is in an open position;
where the bed base comprises an armrest for a seated person to rest their arm when the bed is in a closed position and where the armrest acts as a proximal bed support at the end of the bed base closest to the carcass when the bed is in the open position;
where the sofa bed comprises a distal bed support for the bed base at the end of the bed base furthest from the carcass, the distal bed support being transformable to a support function as the bed base is moved to an open position;
where the sofa bed comprises a gas strut fixable at a first end to the armrest and at a second end to the floor, the gas strut lying outside of the carcass, such that the gas strut is uncompressed when the bed is in the closed position and compressed when the bed is in the open position;
where the bed base comprises at least one of:
a shelf, rotatable under gravity relative to the bed base when the bed is moved to an open position to act as said distal bed support;
and
a sofa base, movable from its position as a component of the sofa as the bed is lowered into the open position to position where the sofa base is operable to act as said distal bed support.
2. A sofa bed according to claim 1 comprising first and second horizontally spaced rotatable mount assemblies operable to support the bed base for rotation between a vertical and a horizontal position, the first and second mount assemblies being attached to the outside of the carcass at the interface.
3. A sofa bed according to claim 1 wherein the armrest is provided with an armrest extension, rotatable as the bed is raised into the closed position to provide an extension to the armrest for use by a person sitting upon the sofa; the armrest extension being operable as the bed is lowered to the open position to engage the floor to swing at 90° to the armrest to allow the armrest to act as a support for the bed against the floor.
4. A sofa bed according to claim 3 further comprising an armrest shield for each armrest covering the armrest, the mount assembly and the gas strut and able to accommodate movement thereof as the bed base moves between a vertical closed position to a horizontal open position.
5. A sofa bed according claim 4 further comprising a mattress and bed base sidewalls; the bed base sidewalls holding the mattress atop the bed base when the sofa bed is in the open position; and the bed base sidewalls holding the mattress within the carcass, when the bed base is in the closed vertical position within the carcass.
6. A sofa bed according claim 1 further comprising a mattress and bed base sidewalls; the bed base sidewalls holding the mattress atop the bed base when the sofa bed is in the open position; and the bed base sidewalls holding the mattress within the carcass, when the bed base is in the closed vertical position within the carcass.
7. A sofa bed according to claim 5 further comprising one or more storage locations within the carcass.
8. A sofa bed according to claim 1 further comprising one or more storage locations within the carcass.