Static structures (e.g. – buildings) – Machine or implement
Patent
1993-03-26
1996-03-26
Friedman, Carl D.
Static structures (e.g., buildings)
Machine or implement
52579, 525881, 527291, 527317, 293973, 2989732, 2989735, 403218, 403331, E04C 332, B23P 1700
Patent
active
055010539
DESCRIPTION:
BRIEF SUMMARY
This invention is concerned with novel structural members and a process for manufacturing same.
International patent application Ser. No. PCT/AU89/00313 describes a method for formation of structural members wherein a single strip of metal is continuously cold roll-formed to provide a central web with a hollow flange extending along each longitudinal edge. Although the central web is usually planar it may be contoured in a transverse direction. The hollow flanges may be formed in any suitable cross sectional shape such as circular, rectangular, triangular or the like and they may be of the same or different sizes.
In a further Australian patent application Ser. No. (PCT/AU91/00442) there is described a substantial improvement in the method and structure of the structural members disclosed in earlier International patent application Ser. No. PCT/AU89/00313. This further application describes the formation of structural members comprising at least one web having at least one hollow flange extending along a longitudinal edge thereof.
The improvement described in the further application relates to the continuous fabrication in cold roll forming machines of structural members formed from a multiplicity of separate metal strips. This improved process enables the manufacture of structural members having a web (or webs) and a hollow flange (or flanges) wherein the web and flange components may be comprised of differing metal thicknesses and grades depending upon the requirement of the structural member. In addition, the improved process enables structural members to be formed in a wide variety of configurations.
The present invention relates to new and improved structural members and novel uses therefor, the new and improved structural members being fabricated generally in accordance with the processes of the abovementioned applications. Accordingly, the disclosures of patent applications PCT/AU89/00313 and PCT/AU91/00442 are incorporated herein by way of cross reference and references herein to "roll forming" as it relates to the invention, the subject of this patent application mean "cold rolling forming".
According to one aspect of the present invention there is provided a structural member comprising:
a first hollow flange and a second flange extending longitudinally of an intermediate web, said first flange including a slotted aperture extending longitudinally thereof in a direction parallel to a longitudinal axis of said first flange.
The second flange may comprise a solid element although preferably the second flange is hollow. If required said first and second flange may be hollow and both of said first and second flanges may include a slotted aperture extending longitudinally thereof.
Suitably said first flange is adapted to receivably locate within its interior a flange of an adjacent structural member comprising at least one web element and at least one flange element extending longitudinally of an edge of said web element, said web element extending through said slotted aperture when said at least one flange element is receivably located within the interior of said first flange.
Suitably, the second flange has a cross sectional area less than the cross sectional area of the interior of the first hollow flange.
The first and second hollow flanges may have the same or different cross sectional shapes.
Preferably the cross sectional shapes of said first and second flanges are similar or identical.
Most preferably first flange may be adapted in use to receivably locate a second flange of an adjacent substantially identical structural member.
The intermediate web member may be substantially planar or alternatively it may be contoured transversely of a longitudinal axis of said structural member.
If required, the web and the first and second flanges may comprise the same grade and thickness of metal or differing grades and thickness of metal.
Suitably the slotting aperture may be in the same plane as the intermediate web or in another plane inclined thereto.
The slotted aperture may be of a width such as to
REFERENCES:
patent: Re21921 (1941-10-01), Greulich
patent: D27394 (1897-07-01), Horton
patent: D28864 (1898-06-01), Baker
patent: D32294 (1900-02-01), Bissel
patent: 426558 (1890-04-01), Dithridge
patent: 991603 (1911-05-01), Brooks
patent: 1341949 (1920-06-01), Troye
patent: 1377251 (1921-05-01), Hunker
patent: 1454659 (1923-05-01), Thurston
patent: 1623939 (1927-04-01), Kraft
patent: 2127618 (1938-08-01), Riemenschneider
patent: 2880589 (1959-04-01), Wilson et al.
patent: 3140764 (1964-07-01), Cheskin
patent: 3199174 (1965-08-01), Nilsson et al.
patent: 3241285 (1966-03-01), Baroni
patent: 3256670 (1966-06-01), Tersigni
patent: 3342007 (1967-09-01), Merson
patent: 3349537 (1967-10-01), Hopfeld
patent: 3362056 (1968-01-01), Preller et al.
patent: 3427427 (1969-02-01), Rudd
patent: 3434198 (1969-03-01), Bergantini
patent: 3452433 (1969-07-01), Scofield
patent: 3517474 (1970-06-01), Lanternier
patent: 3698224 (1972-10-01), Saytes
patent: 3713205 (1973-01-01), Wogerbauer
patent: 3735547 (1973-05-01), Moyer et al.
patent: 3827117 (1974-08-01), Oilman
patent: 3860781 (1975-01-01), Aschauer
patent: 4002000 (1977-01-01), Howard et al.
patent: 4402206 (1983-09-01), Yanazawa et al.
patent: 4433565 (1984-02-01), Preller
patent: 4468946 (1984-02-01), Driear
patent: 4586646 (1986-05-01), Booher
patent: 4750663 (1988-06-01), Warczak
patent: 4881355 (1989-11-01), Bosl et al.
patent: 5163225 (1992-11-01), Goleby
patent: 5373679 (1994-12-01), Goleby
Derwent Abstract Accession No. A3410A/02, Class P52 (Mosc Aviatn Techn) Jun. 10, 1977.
Derwent Abstract Accession No. 91-071965/10, Class P52, SU, A, 1558-529 (Ukr Metals Res Inst) Apr. 23, 1990.
Patents abstracts of Japan M78, p. 57, JP, A, 56-50724 (Nitsutetsu Kenzai K.K.) Aug. 5, 1981.
Patent Abstracts of Japan, M660. p. 14, JP, A, 62-176611 (Nisshin Steel Co Ltd) Mar. 8, 1987.
Friedman Carl D.
Tube Technology Pty. Ltd.
Wilkens Kevin D.
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