Patent US3874753A successfully refreshed from Google Patents.
US3874753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unit furniture
Assignee: Iwate Fuji Sangyo KK
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Filing: 1972-07-21
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Granted: 1975-04-01
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Expires: 1992-07-21
Abstract
Abstract An easily assemblable and disassemblable furniture system, expandable from a basic unit which includes main plates, a rear plate, and joint poles. The main plate has sectoral projections on its end faces and upper and lower flutes, proximate and parallel to and extending the length of its lateral side edge. The rear plate is vertically received within flutes on upper and lower position main plates, and has defined therein four angled notches at its corners to accommodate the joint poles. The joint poles are substantially square in cross section and have four mating grooves of sectoral cross section, the two grooves and the vertical faces receiving the projections of the horizontally positioned main plates. Additional main plates are also positioned vertically to form the sides of the basic unit, the grooves in the horizontal faces receiving the projections of the vertical plates, and their flutes receiving the end sides of the rear plate. Additional segments of the basic unit may be developed by further assembly of the above-mentioned elements, until a desired furniture system has been assembled.
Inventors
- 👤 Buni Naito
- 👤 Masao Sumi
- 👤 Kunihiro Aoki
- 👤 Jutaro Hosoi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:16
CPC Classifications
A; A47; A47B; A47B47/00; A47B47/0025; A47B47/0041
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
435 words
Unit furniture for a furniture system expandable from a base unit of component parts which comprises: a. a plurality of generally rectangular and flat main plates defined by lateral side and end edges, a flute formed in at least one face of said plate extending between the end edges, parallel and proximate to the rear lateral side edge, and including a plurality of vertically spaced horizontal main plates and a plurality of laterally spaced vertical side main plates; b. first engaging means associated with both end edges of the plate and extending between the front and rear lateral side edges and outwardly from the end edges of the plate; c. a plurality of generally square cross-sectional substantially horizontally transversely extending joint poles, each side having a width substantially equal to the thickness of said plate, the pole having a length substantially equal to the width of said plate; d. second engaging means associated with each of the four sides of the joint poles, and being defined by grooves formed in the sides of said joint poles and having a cross-sectional configuration complementary to the cross-sectional configuration of said first engaging means the second means having a cross-sectional configuration complementary to the cross-sectional configuration of the engaging means of said main plate and being in telescopic engagement therewith; e. a substantially vertical rear plate, having a generally rectangular flat configuration and a thickness slightly smaller than the width of and engaging the flute of the main plate, and having length and width dimensions substantially the same as the main plate, so that assembly of the plates and joint poles may be effected by coupling two main plates at right angles to each other by the joint poles and then inserting the rear plate in the flutes of the opposing surfaces of the main plate, and then coupling two additional main plates at right angles to the first main plates there is obtained a box-like unit frame, and by coupliNg additional component parts to this unit frame to obtain a desired furniture system; said joint pole having a length corresponding to the width of said main plate, and said rear plate having angled notches formed at its four corners, and registering with the rear sections of respective joint poles, each side of said angled notch having a length corresponding to the depth of the flute formed in said main plate, at least one of said main plates having said flutes formed in the opposite faces thereof and a rear plate engaging each of said opposite flutes and extending in opposite coplanar directions from the respective main plate.
Claim 2
Dependent Claim
435 words
Unit furniture for a furniture system expandable from a base unit of component parts which comprises: a. a plurality of generally rectangular and flat main plates defined by lateral side and end edges, a flute formed in at least one face of said plate extending between the end edges, parallel and proximate to the rear lateral side edge, and including a plurality of vertically spaced horizontal main plates and a plurality of laterally spaced vertical side main plates; b. first engaging means associated with both end edges of the plate and extending between the front and rear lateral side edges and outwardly from the end edges of the plate; c. a plurality of generally square cross-sectional substantially horizontally transversely extending joint poles, each side having a width substantially equal to the thickness of said plate, the pole having a length substantially equal to the width of said plate; d. second engaging means associated with each of the four sides of the joint poles, and being defined by grooves formed in the sides of said joint poles and having a cross-sectional configuration complementary to the cross-sectional configuration of said first engaging means the second means having a cross-sectional configuration complementary to the cross-sectional configuration of the engaging means of said main plate and being in telescopic engagement therewith; e. a substantially vertical rear plate, having a generally rectangular flat configuration and a thickness slightly smaller than the width of and engaging the flute of the main plate, and having length and width dimensions substantially the same as the main plate, so that assembly of the plates and joint poles may be effected by coupling two main plates at right angles to each other by the joint poles and then inserting the rear plate in the flutes of the opposing surfaces of the main plate, and then coupling two additional main plates at right angles to the first main plates there is obtained a box-like unit frame, and by coupliNg additional component parts to this unit frame to obtain a desired furniture system; said joint pole having a length corresponding to the width of said main plate, and said rear plate having angled notches formed at its four corners, and registering with the rear sections of respective joint poles, each side of said angled notch having a length corresponding to the depth of the flute formed in said main plate, at least one of said main plates having said flutes formed in the opposite faces thereof and a rear plate engaging each of said opposite flutes and extending in opposite coplanar directions from the respective main plate.
Claim 3
Dependent Claim
27 words
The invention according to claim 1, in which said engaging means of the main plate secured by an adhesive to the end faces of said main plate.
Claim 4
Dependent Claim
25 words
The invention according to claim 1, in which said engaging means of the main plate is integral with the end face of said main plate.
Claim 5
Dependent Claim
79 words
The invention according to claim 1, in which the joint pole is comprised of two members, one of which being of a length corresponding to the distance from that lateral side edge of the plate member located closer to the flute to the front lateral edge of said flute, the other said member being of a length corresponding to the distance from the rear lateral edge of said flute to the rear lateral side edge of said main plate.
Claim 6
Dependent Claim
57 words
The invention according to claim 4, in which the length of said one of the members of the joint pole extends to the rear lateral edge of said flute, and said one of the members has notches formed at the end faces of said extended portion and having a depth equal to the length of this extension.
Claim 7
Dependent Claim
46 words
The invention according to claim 1, further comprising rails for sliding doors, said rails each comprising a base plate and at least three spaced parallel ridges extending from one surface of said base plate in parallel with the longitudinal side edge line of this base plate.
Claim 8
Dependent Claim
48 words
The invention according to claim 6, in which said oblong flat base plate has a double-face adhesive tape, one adhesive surface thereof being bonded to the other surface of said base plate containing no ridges, and the other adhesive surface being covered by a protective peel-off paper strip.
Claim 9
Dependent Claim
114 words
The invention according to claim 1, further comprising guide rails for drawers, said guide rails each comprising a central oblong flat base plate member, lugs extending in opposite directions and at right angles from both ends of said base plate member to form a double T-shape, and a ridge extending outwardly from the central portion of said plate member and the lugs to form a continuous projection, the opposite end surfaces of said lugs being parallel with each other and those end surfaces of spaced adjacent lugs being aligned with each other, the distance between the opposite end surfaces of lugs being associated with the length of the lateral side of the main plate.
Claim 10
Dependent Claim
71 words
The invention according to claim 8, further comprising drawers each having a box-like configuration and a height smaller than the distance between the opposite end surfaces of said lugs of the base plate member and also having a groove formed in each of the opposing two side walls of the drawer for receiving said ridge of the guide rail, said groove having a cross-sectional configuration complementary to that of said ridge.
Claim 11
Dependent Claim
76 words
The invention according to claim 1, further comprising a fixing member comprised of an oblong flat base plate and an engaging portion formed on one surface thereof, said engaging portion being of the same cross-sectional shape as that of the engaging portion of the main plate and having a recess for receiving therein the head of a fastening piece such as a screw to keep said head from protruding beyond the surface of said engaging portion.
Claim 12
Dependent Claim
56 words
The invention according to claim 1, further comprising a fixing member having the same cross-sectional shape as that of the engaging portion of the main plate and having a recess for receiving therein the head of a Fastening piece such as a screw to keep said head from protruding beyond the surface of said engaging portion.
Claim 13
Dependent Claim
147 words
The invention according to claim 1, further comprising a supporting base for supporting the assembled furniture thereon, said base comprising two different pairs of base plate members, those two base plate members in one of the two pairs each having a length corresponding to the length of the lateral side edge of the main plate and having at least two spaced pins extending from each end face thereof, those two base plate members in the other of the two pairs each having a length corresponding to the end edge of the main plate and having spaced holes formed in one face of said base plate member at positions corresponding to the locations of said pins and further having an engaging portion provided on the upper end face of this base plate member, said engaging portion being of the same cross-sectional shape as that of the main plate.
Claim 14
Dependent Claim
33 words
The invention according to claim 1, the first engaging means extending inwardly from the end edges of the main plate, the second engaging means extending outwardly from the sides of the joint poles.
References Cited (Backward Citations)
US1076116A
Cited
US2956705A
Cited
US3181923A
Cited
US3195968A
Cited
US3265935A
Cited
US3410474A
Cited
US3661434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |