U.S. patent number 3,874,141 [Application Number 05/368,289] was granted by the patent office on 1975-04-01 for building panels.
This patent grant is currently assigned to International Canadome Limited. Invention is credited to Roy F. Hooley, John Bell McRae, Mervyn D. Olson, William R. Scotton, Norman Murray Stephens.
United States Patent |
3,874,141 |
Olson , et al. |
April 1, 1975 |
Building panels
Abstract
A symmetrical quadrilateral plate, generally diamond shaped,
folded along two lines symmetrically spaced on each side of its
major axis to form a flat central valley and two similar triangular
portions. Extensions portions are provided at the ends of the major
axis and define extensions of the valley, the end portions being
bent upwardly or downwardly from the plane of the valley.
Inventors: |
Olson; Mervyn D. (Vancouver,
CA), Hooley; Roy F. (Vancouver, CA), McRae;
John Bell (Coquitlam, CA), Stephens; Norman
Murray (North Vancouver, CA), Scotton; William R.
(Ganges, CA) |
Assignee: |
International Canadome Limited
(Burnaby, CA)
|
Family
ID: |
23450638 |
Appl.
No.: |
05/368,289 |
Filed: |
June 8, 1973 |
Current U.S.
Class: |
52/630; 52/86;
52/81.4 |
Current CPC
Class: |
E04B
1/32 (20130101); E04C 2/32 (20130101); E04B
2001/3288 (20130101) |
Current International
Class: |
E04B
1/32 (20060101); E04C 2/32 (20060101); E04b
001/32 () |
Field of
Search: |
;52/81,86,63,630,584 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
564,940 |
|
Feb 1958 |
|
BE |
|
1,315,078 |
|
Feb 1962 |
|
FR |
|
Primary Examiner: Abbott; Frank L.
Assistant Examiner: Raduazo; Henry
Attorney, Agent or Firm: Fetherstonhaugh & Co.
Claims
We claim:
1. A building panel comprising symmetrical quadrilateral modular
plate for cooperative use with similar plates in building
construction, said plate being folded along two lines symmetrically
spaced one on each side of a diagonal line of symmetry to form a
central valley between said lines and two similar at least
substantially triangular portions lying in intersecting planes
disposed at equal angles to a plane of symmetry of the plate, and
said plate having extension portions at the ends of said diagonal
of symmetry, and extension portions being generally planar and
including therein a continuous extension of said two lines, thus
defining extensions of said central valley and the plane of each
said generally planar extension portion being bent to define an
acute angle with the diagonal line of symmetry, whereby said
extension portions are shaped to lap with an extension portion of
an adjoining plate on the building construction.
2. A building panel as claimed in claim 1, wherein said central
valley is transversely curved so as to be convex in the direction
in which said triangular portions are bent, and said extensions
being similarly curved.
3. A building panel as claimed in claim 1, wherein said extension
portions are bent so as to define the same acute angle with said
diagonal of symmetry.
4. A building panel as claimed in claim 1, wherein said extension
portions are bent from said diagonal of symmetry in the same
direction as said triangular portions.
5. A building panel as claimed in claim 1, wherein said extension
portions are bent from said diagonal of symmetry in the opposite
direction to said triangular portions.
6. A building panel as claimed in claim 1, wherein the sides of
said triangular portions defining the sides of said plate are each
folded adjacent the edges thereof to form a peripheral flange.
7. A building panel as claimed in claim 6, wherein each side of
said plate is folded adjacent the edge thereof along two parallel
lines to define a ridge plane.
8. A building panel as claimed in claim 7, wherein said extension
portions are folded along two parallel lines on each side of said
diagonal of symmetry to form extension ridge planes convergent with
said main ridge planes at the same angle to the diagonal of
symmetry.
9. A building panel comprising symmetrical quadrilateral modular
plate for cooperative use with similar plates in building
construction, said plate being folded along two lines symmetrically
spaced one on each side of a diagonal line of symmetry to form a
central valley between said lines and two similar at least
substantially triangular portions lying in intersecting planes
disposed at equal angles to a plane of symmetry of the plate, said
plate having extension portions at the ends of said diagonal of
symmetry, said portions defining extensions of said central valley
and being bent to define acute angles relative to the diagonal line
of symmetry and being shaped to lap with an extension portion of an
adjoining plate on the building construction, said central valley
being transversely curved so as to be convex in the direction in
which the triangular portions are bent, and said extensions being
similarly curved.
10. A building panel comprising symmetrical quadrilateral modular
plate for cooperative use with similar plates in building
construction, said plate being folded along two lines symmetrically
spaced one on each side of a diagonal line of symmetry to form a
central valley between said lines and two similar at least
substantially triangular portions lying in intersecting planes
disposed at equal angles to a plane of symmetry of the plate, said
plate having extension portions at the ends of said diagonal line
of symmetry, said extension portions defining extensions of said
central valley and being bent to define acute angles relative to
the diagonal line of symmetry and being shaped to lap with an
extension portion of an adjoining plate on the building
construction, the sides of said triangular portions defining the
sides of said plate being folded along two parallel lines to define
a ridge plane and including a peripheral flange adjacent each said
ridge plane on the exterior thereof to define the outer edge of
said plate.
11. A building panel as claimed in claim 10, wherein said extension
portions are folded along two parallel lines on each side of said
diagonal of symmetry to form extension ridge planes convergent with
said main ridge planes at the same angle to the diagonal line of
symmetry.
Description
The invention relates to modular building panels for use in
building construction, and particularly to folded plates for use in
buildings which derive their strength from the three-dimensional
configuration of the plates.
In a preferred embodiment, the invention provides a symmetrical
quadrilateral modular plate for cooperative use with similar plates
in building construction, said plate being folded along two lines
symmetrically spaced on each side of a diagonal of symmetry to form
a flat central valley, and two similar, at least substantially
triangular portions lying in intersecting planes disposed at equal
angles to the plane of symmetry of the plate, said plate having
extension portions at the ends of the diagonal of symmetry defining
extensions of said valley, with said extension portions being bent,
whereby the valley extensions define acute angles on the same side
of the plate with the central valley.
Preferably, adjacent each edge of the plate, folds are formed along
two parallel lines to define a ridge plane and a peripheral flange
for overlapping engagement with adjacent plates in a building
construction.
The invention will now be further described by way of example with
reference to the accompanying drawings in which
FIG. 1 is a plan view of a modular plate according to the
invention,
FIGS. 2 and 3 are plan views similar to FIG. 1 of alternative
configurations of the plate,
FIG. 4 is a perspective view from above the plate of FIG. 1,
FIG. 5 is a sectional elevation on the line 5--5 of FIG. 4,
FIG. 6 shows an end detail of a further configuration of plate,
FIG. 7 shows an end detail of the plate of FIGS. 1 and 4 and,
FIG. 8 is a perspective view of part of a building construction
incorporating four plates according to the invention.
Referring first to FIGS. 1, 4 and 5, the plate 1 shown is generally
diamond shaped and is bent along two parallel lines 2, equally
spaced from the major diagonal of the plate to form a central
valley 3 having a reverse curve (as best seen in FIG. 5) and
similar triangular portions 4 lying in intersecting planes disposed
at equal angles to the plane of symmetry of the plate. In addition,
two ribs 20 are preferably formed in the plate in parallel relation
to the lines 2. Instead of the ribs 20 however, the plate may be
slightly bent along the same lines in the opposite direction to the
bends at the lines 2. Either arrangement enhances the stiffening of
the plate.
At each end of the plate, generally planar extension portions 5 are
provided each defining an extension 6 of the central valley 3. The
extension portions 5 are bent downwardly so that the valley
extensions 6 define substantially the same acute angles relative to
the diagonal of symmetry and on the same side of the plate with the
valley 3, as best seen in FIG. 4. Adjacent to each edge, the plate
1 is bent along a pair of lines 7 to form a ridge plane 8 and a
peripheral flange 9.
The extension portions 5 are also folded along two parallel lines
10 to form extension ridge planes 11 convergent with the main ridge
planes 8 at the same angle to the major diagonal.
The flanges 9 are cut away parallel to the major diagonal to permit
abutment with a similar cut away portion of an adjacent plate.
FIGS. 2 and 3 show plate configurations similar to that of FIGS. 1,
4 and 5 but in which the plate is bent along the lines diverging
from the ends of the plate so that the flat central valley 3 is of
greater width in the centre of the plate than at the ends. In FIG.
2, the fold lines 13 are curved whereas in FIG. 3 the lines 14 are
straight so as to define angles at the center position.
Turning now to FIGS. 6 and 7, these show details of the end
portions of two different plates. In FIG. 6, the extension portions
5 are bent in the same direction as the triangular portions 4. In
FIG. 7, the extension portions 5 are bent in the opposite direction
to the triangular portions 4, this arrangement being that shown in
the plate of FIG. 4. The extension portions 5 at the ends of each
plate may be bent so that the valley extensions 6 lie at the same
or different angles to the central valley 3, depending upon the
shape of the building into which the plates are to be
incorporated.
The plates may be made of plastics material or metal sheet aluminum
or steel. When the plates are formed from aluminum sheet, the fold
lines 2 are preferably spaced apart by between about 30 and 60
times the thickness of the sheeting. Where steel sheeting is used,
the spacing of the fold lines 2--2 is preferably between 30 and 80
times the thickness of the sheeting. It has been found that the
formation of the double fold lines 2--2 substantially increases the
capacity of a building assembled from such plates to resist dead
weight loading. For example where a symmetrical load is applied to
a building of generally cylindrical configuration constructed from
such plates, the yield limit has been found to occur at a load
level about 80% greater than the case of buildings formed with
plates having only a single fold line along the major diagonal.
FIG. 8 shows part of a building structure assembled from four
plates according to the invention, two plates 15a, 15b being of the
form shown in FIG. 4 with extension portions 5 bent in the opposite
direction to the triangular portions 4, and the other two plates
16a, 16b having extension portions bent in the same direction as
the triangular portions 4 in the manner shown in FIG. 6. It will be
seen that the uppermost plate 16a has its ridge plane 8 and
peripheral flange 9 overlapping the corresponding plane 8 and
flange of the plate 15a. At the same time, the extension portion 5
overlaps the extension portion 5 of the plate 16b. The plate 15a
overlaps the plates 16b and 15b in a similar manner so that the
structure is resistant to the ingress of rain.
* * * * *