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US 4,541,133 AGranted
Sofa bed
AssigneeSealy of Maryland and Virginia, Inc.
InventorsBernard Reiss, Irl E. Ward
Life of this patent
Estimating the term…
Abstract
A sofa bed has a stationary framework and a foldable bed frame connected to and foldable into the framework, the foldable frame having an outer section connected to and pivotal relative to a body section, the outer section overlying the body section in the folded position of the frame to form a seat. The outer section has a plurality of individual seat support elements extending thereacross transversely to the sofa back. The individual elements are spaced apart in a direction parallel to that axis, and each of the individual elements is downwardly deflectable independently of the others when a person sits on said seat. A spring edge is mounted on and extends above a front rail of the stationary framework to form the front supporting edge of the seat.
Claims27
A sofa bed, comprising:
- a stationary framework;
- a foldable bed frame connected to and foldable into said framework, said foldable frame having an outer section pivotally attached to an intermediate section which is pivotally attached to a body section, the outer section overlying the body section in the folded position of the frame to form a seat deck;
- said outer section having a plurality of individual seat support elements extending thereacross transversely to the axis of pivotal attachment of said outer section to said intermediate section, said individual elements being spaced apart in a direction parallel to said axis, and each of said individual elements being downwardly deflectable independently of the others when a person sits on said seat deck;
- mattrress support means at at least said bed frame intermediate section;
- and means to attach said mattress support means to said bed frame that unfolding of said bed frame firms said mattress support means and folding of said bed frame loosens said mattress support means.
2 more elements
A sofa bed, comprising:
- A stationary framework;
- A foldable bed frame connected to and foldable into said framework, said foldable frame having a plurality of pivotally connected sections;
- said sections defining a mattress support deck;
- means responsive to unfolding of said bed frame to stiffen said mattress support deck and responsive to folding of said bed frame to loosen said mattress support deck;
- and
- said deck being defined at least in part by a plurality of slats disposed parallel to the axis of the pivotal connections to said sections to each other.
3 more elements
A sofa bed comprising:
- A stationary framework;
- a foldable bed frame connected to and foldable into said framework, said foldable frame having a plurality of pivotally connected sections;
- said sections defining a mattress support deck;
- means responsive to unfolding of said bed frame to stiffen said mattress support deck and responsive to folding of said bed frame to loosen said mattress support deck;
- and
- said deck being defined at least in part by at least one solid panel.
3 more elements
A sofa bed, comprising:
- a stationary framework;
- a foldable bed structure connected to and foldable rearwardly into and forwardly out of said framework, said bed structure comprising an outer section pivotally attached to an intermediate section which is pivotally attached to a body section, the outer section overlying the body section in the folded position of the bed structure to form a seat support;
- said outer section comprising a frame having outer and inner cross members connected by side members, said inner cross member being located adjacent the pivotal attachment of said outer section to said intermediate section, and seat support means attached to said frame;
- a link fabric attached to said bed structure and forming a mattress support surface of said body and intermediate sections in the unfolded position of said bed structure;
- and
- the forward end of said link fabric being attached to said bed structure at a location forward of the pivotal attachment of said outer section to said intermediate section and overlapping a portion of said seat support means in the unfolded position of said bed structure, whereby the unfolding of said bed structure stretches said link fabric to provide a firmer more supportive mattress support surface and the folding of said bed structure loosens said link fabric.
3 more elements
A sofa bed, comprising:
- a stationary framework;
- a foldable bed frame connected to and foldable into said frame work, said foldable frame having an outer section pivotally attached to an intermediate section which is pivotally attached to a body section, the outer section overlying the body section in the folded position of the frame to form a seat deck;
- said outer section having a plurality of individual seat support elements extending thereacross transversely to the axis of pivotal attachment of said outer section to said intermediate section, said individual elements being spaced apart in a direction parallel to said axis, and each of said individual elements being downwardly deflectable independently of the others when a person sits on said seat deck;
- wherein said outer section comprises a frame portion having an outer end cross member connected to an inner cross member said cross members being spaced apart and connected together by a pair of side members, said individual elements being attached at their ends to said outer and inner cross members respectively, said inner cross member being connected to said intermediate section such that said individual elements extend the same length between said cross members in both the folded and unfolded positions of the frame;
- a mattress support link fabric;
- said means to attach comprising means to mount said fabric to said intermediate section, an anchoring member, means to anchor the ends of said link fabric to said anchoring member, and means to fix said anchoring member to said support elements a predetermined distance to the side of the pivotal attachment between said outer and intermediate sections towards the outer end of said outer section.
3 more elements
Dependencies are inferred from the claim text.