US3903553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible sofa-bed furniture
Assignee: Individual
•
Filing: 1974-05-28
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Granted: 1975-09-09
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Expires: 1994-05-28
Abstract
Abstract This sofa-bed convertible furniture comprises a fixed wooden main frame supported by four legs at its corners, a back comprising a relatively thick padded lower portion for improving the user''s comfort at the small of the back, and a four-section, easy-open mechanism adapted to nest completely within the contour of said frame. The mechanism is so arranged that no interference with said thick padded lower portion of the back rest is produced when opening and re-closing the mechanism. The sections of this mechanism are a head-rest section, an intermediate section, a main section and a foot-rest section, and their relative arrangement is such that the general depth of the furniture is reduced appreciably as well as the over-all dimensions of the furniture itself.
Inventors
- 👤 Albert Metayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:16
CPC Classifications
A; A47; A47C; A47C17/00; A47C17/04; A47C17/22; A47C17/225
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
248 words
A bed base for a piece of furniture adapted to be converted from a seat into a bed comprising a fixed frame, a main element, lever means pivotally connecting said main element to said frame and movable between a folded position in which said main element is inserted in said frame and an unfolded position in which said main element is moved from said frame to a horizontal position, a leg pivotally connected to said main element and capable of supportinG said main element in its horizontal position, an intermediate element pivotally connected at its back end to said main element, a leg element pivotally connected at its back end to said intermediate element and movable between a folded position in which it is parallel to said main element and an unfolded position in which said leg element is in prolongation of said main and intermediate elements, a second leg pivotally connected to said leg element capable of supporting said leg element in its prolonged position, a head element pivotally connected to the back end of said main element and when in its unfolded position being housed between said folded leg element and said main element and linkage means connecting said head element, main element, intermediate element and leg element and capable of automatically causing said head element to move from its folded position to an unfolded position in prolongation of said main element when said leg element is moved from its folded position to its unfolded position.
Claim 2
Dependent Claim
248 words
A bed base for a piece of furniture adapted to be converted from a seat into a bed comprising a fixed frame, a main element, lever means pivotally connecting said main element to said frame and movable between a folded position in which said main element is inserted in said frame and an unfolded position in which said main element is moved from said frame to a horizontal position, a leg pivotally connected to said main element and capable of supportinG said main element in its horizontal position, an intermediate element pivotally connected at its back end to said main element, a leg element pivotally connected at its back end to said intermediate element and movable between a folded position in which it is parallel to said main element and an unfolded position in which said leg element is in prolongation of said main and intermediate elements, a second leg pivotally connected to said leg element capable of supporting said leg element in its prolonged position, a head element pivotally connected to the back end of said main element and when in its unfolded position being housed between said folded leg element and said main element and linkage means connecting said head element, main element, intermediate element and leg element and capable of automatically causing said head element to move from its folded position to an unfolded position in prolongation of said main element when said leg element is moved from its folded position to its unfolded position.
Claim 3
Dependent Claim
30 words
A bed base as claimed in claim 1 wherein said linkage means is pivotally connected to said second leg whereby unfolding of said second leg will unfold said head element.
Claim 4
Dependent Claim
87 words
A bed base as claimed in claim 1 wherein said linkage means includes a link pivoted at one end to said intermediate section, a transverse stud on the opposite end of said link, said main section has an elongated lateral operature with said stud slideable therein, a rod pivotally connected to said link between the ends of said link, and a tilting lever pivotally connected to said main element, said rod and said head element adjacent the pivotal connection of said head element to said main element.
Claim 5
Dependent Claim
49 words
A bed frame as claimed in claim 3 including a second link pivotally connected to said head element and the back end of said main element and a stop provided on said second link adjacent said head element and capable of supporting said head element in its unfolded position.
Claim 6
Dependent Claim
56 words
A bed frame as claimed in claim 4 including a connecting link pivotally connected to said leg element adjacent the pivoted connection of said leg element to said intermediate element, said intermediate element has an S-shaped lateral aperture and a transverse stud is provided on said connecting link and slideably positioned in said S-shaped lateral aperture.
Claim 7
Dependent Claim
43 words
A bed frame as claimed in claim 5 including a pivoted link pivotally connected to said lever means and said first leg and capable of automatically moving said first leg to its main element supporting position on the unfolding of said bed frame.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |