CA1135123A - One piece peripherally ribbed sheet metal door - Google Patents
One piece peripherally ribbed sheet metal doorInfo
- Publication number
- CA1135123A CA1135123A CA000327807A CA327807A CA1135123A CA 1135123 A CA1135123 A CA 1135123A CA 000327807 A CA000327807 A CA 000327807A CA 327807 A CA327807 A CA 327807A CA 1135123 A CA1135123 A CA 1135123A
- Authority
- CA
- Canada
- Prior art keywords
- marginal
- fold
- zones
- panel
- areas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Securing Of Glass Panes Or The Like (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A single generally rectangular panel member is provided including first and second pairs of opposite sides.
The panel member defines first peripherally extending gener-ally straight first marginal fold zones along which corres-ponding marginal portions of the panel member project and extend. The marginal portions are each reversely bent along the first fold zones over the first side of the panel member and each of the marginal portions includes successive second and third fold zones, between which corresponding second mar-ginal areas of the marginal portions are defined, along which the marginal portions are bent, at generally right angles, toward the second and first sides of the panel member, res-pectively, first areas of the marginal portions being defined between corresponding first and second fold zones of the panel member. The marginal portions each further include a fourth fold zone along which the marginal portion is folded, at generally right angles, toward the first side of the panel member, the marginal portions between corresponding third and fourth zones, each defining a third marginal area and the adjacent ends of adjacent third marginal areas are disposed in overlapped engagement with each other.
A single generally rectangular panel member is provided including first and second pairs of opposite sides.
The panel member defines first peripherally extending gener-ally straight first marginal fold zones along which corres-ponding marginal portions of the panel member project and extend. The marginal portions are each reversely bent along the first fold zones over the first side of the panel member and each of the marginal portions includes successive second and third fold zones, between which corresponding second mar-ginal areas of the marginal portions are defined, along which the marginal portions are bent, at generally right angles, toward the second and first sides of the panel member, res-pectively, first areas of the marginal portions being defined between corresponding first and second fold zones of the panel member. The marginal portions each further include a fourth fold zone along which the marginal portion is folded, at generally right angles, toward the first side of the panel member, the marginal portions between corresponding third and fourth zones, each defining a third marginal area and the adjacent ends of adjacent third marginal areas are disposed in overlapped engagement with each other.
Description
~5~23 Various forms of sheet metal panels and doors have been heretofore provided with peripheral, crossed and diagonal bracing. However, most sheet metal doors or panels provided with such bracing are either constructed of multiple sheet metal sections or include only minimal bracing. Accordingly, a need exists for a one-piece sheet metal door or panel including ample peripheral bracing.
Examples of various forms of single and multiple sheet metal section panels and doors including peripheral and crossed bracing are disclosed in U.S. patent Nos. 1,768,742, 2,149,882, 2,241,266, 3,792,522 10 and 3,848,324.
The sheet metal door of the instant invention is constructed ; from a single piece of sheet metal and includes ample rib-type peripheral reinforcing. The sheet metal door is disclosed as being generally rectangular in configuration, but may be readily constructed to include more than four sides. In addition, the sheet metal door may be constructed of substantially any size slightly less than the dimensions of the sheet metal panel of which it is constructed. Further, one side of the sheet metal door is completely uninterrupted.
The main object of this invention is to provide a one-piece sheet metal door incorporating ample peripheral rib-type bracing.
Another object of this invention is to provide a sheet metal door which may be constructed so as to include four or more side marginal edges and which may also be triangular in plan shape.
Another important object of this invention is to provide a one-piece peripherally ribbed sheet metal door which may be constructed from a sheet metal panel only slightly greater in dimensions than the plan dimensions of the finished door.
Yet another important object of this invention is to provide a one-piece sheet metal door including one side thereof which is totally uninterrupted.
~35~'~3 A final object of this invention to be spec:ifically enumerated herein is to provide a one-piece slleet meta].
door in accordance with the preceding objects and which will conform to convent;.onal forms of manufac-ture and be of simple construction so as to provide a device that will be economica]ly feasible.
In general, the present invention provides a one-piece peripherally reinforced panel, the panel including a single panel member having first and second opposite sides and defining peripherally extending marginal edges, a first fold zone generally paralleling each edge clS well as second and third fold zones generally paralleling each first zone and each other and successively spaced from the first fold zone toward the corresponding edye, corres-ponding first and second zones defining a first marginal area therebetween, corresponding second and third zones defining a second maxginal area therebetween and a third marginal area being defined between each third fold zone and the corresponding edge, the first marginal areas being reversely bent along the first fold zones over the first ' side of the panel member with the first fold zones defining the ou-ter marginal border of the panel, the secon(l marginal areas being bent along the second fold zones, at right angles relative to the first marginal areas outwardly away from the first side, the tl-ird marginal areas being bent along the third fold zones, at generally right angles relative to tlle second marginal areas inwardly over the one side in spaced relation relative thereto, the adjacent ends of adjacent third outer marc3inal areas being disposed in overlapped engagemellt ~ith each other ancl ancllor;.ng mealls anchoring the marcJ;,nal. port:i.orls of the th:ird marcJi.llc.ll. areas remote fro the ~econd maryina].clreas relati,vc to l:hcc pallel inwarclly of the cc~rrc~icponcling scconcl ou~cr marginal. fol.cl zones.
r,.
p CJ /: ~ f I; ~ 2 ~i35~23 Figure 1 is a perspecti.ve view of the inner side of the sheet metal door o:E -the ins-tant i.nven-tion;
Figure 2 is an enlarged, fragmen-taLy, ver-l:ical sectional view taken substantially upon the plane indicated by the section line 2--2 oE Figure l;
Figure 3 is a plan view of a sheet metal blank from which the door may be formed;
Figure 4 is a fragmentary, enlarged, perspective view of tlle inner side of one of the corner portions of the door with remainder of the door being broken away; and Figure 5 is a fragmentary, perspective view of a second door constructed in accordance with -the present invention, but which has been formed to be arcuate in configurati.on.
Referring now more specifically to the drawings, the numeral 10 generally desi.gna-tes a first form of peri-pherally ri.bbed sheet metal door constructed in accordance with the presen-t invention. The door 10 comprises a single panel. member 12 constructed of sheet me-tal and the panel member 12 includes Eirst and second inner and outer sides 14 and 16. The panel rnember 12 defines first peripherally extencling generally straigh-t first marginal fold zones 18 along ~/hich corresponding marginal portions 20 of the panel member 12 projcct and ex-tend. Fur-ther, the panel rncmber 12 includes second, third, fourth and fif-th fold ~ones 22, 24, 26 and 28, respectively, paralleling each oi the fi.rs-t fold zones l~. Each marg:inal portioll 20 defiilec;
first, sccond, third, fourth and fifth marc~:inaL areas 30, 32, 34, 36 and 3;3 d:isposed /
pCJ/ - 2A -i~35123 between the zones 18 and 22, 22 and 24, 24 and 26, 26 and 28 and outwardly of the zones 28, respectively. The adjacent ends of adjacent areas 30 are coextensively beveled as at 40 and the areas 36 and 38 of one pair of remote marginal portions 20 are shorter than the corresponding areas 34 and 36 while the areas 32, 34, 36 and 38 of the other pair of remote marginal portions 20 are of the same length, but spaced slightly inwardly of the shorter longitudinal sides of the corresponding areas 30 as at 42.
When it is desired to form the door 10 from the panel member 12, the marginal portions 20 are reversely bent along the fold zones 18 over the first inner side 14 of the panel member 12. Thereafter, the marginal portions 20 are bent at substantially 90 degrees toward the outer side 16 of the panel member 12 along the fold zones 22 and are thereafter bent, at generally right angles, along the fold zones 24 toward the inner side 14 of the panel member 12. Thereafter, the marginal portions 20 are bent along the fold zones 26, at generally right angles, toward the inner side 14 of the panel member 12 and finally bent along the fold zones 28 toward the outer side 16 of the panel member 12.
When the panel member 12 has thus been folded, the beveled edges 40 adjacent ends of areas 30 are disposed in edge abutting relation, the ends of adjacent areas 32 are disposed in edge-to-side face abutting engagement, the ends of adjacent areas 34 are disposed in overlapped en8agement in surface-to-surface contact with each other, the ends of adjacent zones 36 are disposed in edge-to-outer side abutting engagement with each other and the ends of adjacent areas 38 are disposed in end edge to longitudinal edge abutting engagement with each other. Of course, after the door 10 has been formed the areas 38 are disposed in outer side to inner side abutting engagement with the opposing surfaces of the panel member 12 and may be secured directly thereto, if desired.
Further, the overlapped adjacent ends of the areas 34 may also be directly ~35~23 secured to each other.
In this manner, an extremely rigid sheet metal panel or door is formed having continuous peripheral reinforcing and the outer side of the door 10 is uninterrupted. Further, although not required, the various edge-to-side surface abutting portions of the adjacent area ends 34 and 36 may be secured together by welding and the end edge to longitudinal edge abutting portions of the ares 38 may be secured together by welding.
With attention now invited more specifically to Fig. 5 of the drawings, there will be seen a modified form of door referred to in general by the reference numeral 10' and which is substantially indentical to the door 10, except that the entire door structure is arcuate. Of course, in forming the door 10' more sophisticated bending equipment must be used in order to form the areas 30', 32', 34', 36' and 38' of one pair of opposite marginal portions 20l of the panel member 12' corresponding to the panel member 12 with the appropriate radii of curvature.
Examples of various forms of single and multiple sheet metal section panels and doors including peripheral and crossed bracing are disclosed in U.S. patent Nos. 1,768,742, 2,149,882, 2,241,266, 3,792,522 10 and 3,848,324.
The sheet metal door of the instant invention is constructed ; from a single piece of sheet metal and includes ample rib-type peripheral reinforcing. The sheet metal door is disclosed as being generally rectangular in configuration, but may be readily constructed to include more than four sides. In addition, the sheet metal door may be constructed of substantially any size slightly less than the dimensions of the sheet metal panel of which it is constructed. Further, one side of the sheet metal door is completely uninterrupted.
The main object of this invention is to provide a one-piece sheet metal door incorporating ample peripheral rib-type bracing.
Another object of this invention is to provide a sheet metal door which may be constructed so as to include four or more side marginal edges and which may also be triangular in plan shape.
Another important object of this invention is to provide a one-piece peripherally ribbed sheet metal door which may be constructed from a sheet metal panel only slightly greater in dimensions than the plan dimensions of the finished door.
Yet another important object of this invention is to provide a one-piece sheet metal door including one side thereof which is totally uninterrupted.
~35~'~3 A final object of this invention to be spec:ifically enumerated herein is to provide a one-piece slleet meta].
door in accordance with the preceding objects and which will conform to convent;.onal forms of manufac-ture and be of simple construction so as to provide a device that will be economica]ly feasible.
In general, the present invention provides a one-piece peripherally reinforced panel, the panel including a single panel member having first and second opposite sides and defining peripherally extending marginal edges, a first fold zone generally paralleling each edge clS well as second and third fold zones generally paralleling each first zone and each other and successively spaced from the first fold zone toward the corresponding edye, corres-ponding first and second zones defining a first marginal area therebetween, corresponding second and third zones defining a second maxginal area therebetween and a third marginal area being defined between each third fold zone and the corresponding edge, the first marginal areas being reversely bent along the first fold zones over the first ' side of the panel member with the first fold zones defining the ou-ter marginal border of the panel, the secon(l marginal areas being bent along the second fold zones, at right angles relative to the first marginal areas outwardly away from the first side, the tl-ird marginal areas being bent along the third fold zones, at generally right angles relative to tlle second marginal areas inwardly over the one side in spaced relation relative thereto, the adjacent ends of adjacent third outer marc3inal areas being disposed in overlapped engagemellt ~ith each other ancl ancllor;.ng mealls anchoring the marcJ;,nal. port:i.orls of the th:ird marcJi.llc.ll. areas remote fro the ~econd maryina].clreas relati,vc to l:hcc pallel inwarclly of the cc~rrc~icponcling scconcl ou~cr marginal. fol.cl zones.
r,.
p CJ /: ~ f I; ~ 2 ~i35~23 Figure 1 is a perspecti.ve view of the inner side of the sheet metal door o:E -the ins-tant i.nven-tion;
Figure 2 is an enlarged, fragmen-taLy, ver-l:ical sectional view taken substantially upon the plane indicated by the section line 2--2 oE Figure l;
Figure 3 is a plan view of a sheet metal blank from which the door may be formed;
Figure 4 is a fragmentary, enlarged, perspective view of tlle inner side of one of the corner portions of the door with remainder of the door being broken away; and Figure 5 is a fragmentary, perspective view of a second door constructed in accordance with -the present invention, but which has been formed to be arcuate in configurati.on.
Referring now more specifically to the drawings, the numeral 10 generally desi.gna-tes a first form of peri-pherally ri.bbed sheet metal door constructed in accordance with the presen-t invention. The door 10 comprises a single panel. member 12 constructed of sheet me-tal and the panel member 12 includes Eirst and second inner and outer sides 14 and 16. The panel rnember 12 defines first peripherally extencling generally straigh-t first marginal fold zones 18 along ~/hich corresponding marginal portions 20 of the panel member 12 projcct and ex-tend. Fur-ther, the panel rncmber 12 includes second, third, fourth and fif-th fold ~ones 22, 24, 26 and 28, respectively, paralleling each oi the fi.rs-t fold zones l~. Each marg:inal portioll 20 defiilec;
first, sccond, third, fourth and fifth marc~:inaL areas 30, 32, 34, 36 and 3;3 d:isposed /
pCJ/ - 2A -i~35123 between the zones 18 and 22, 22 and 24, 24 and 26, 26 and 28 and outwardly of the zones 28, respectively. The adjacent ends of adjacent areas 30 are coextensively beveled as at 40 and the areas 36 and 38 of one pair of remote marginal portions 20 are shorter than the corresponding areas 34 and 36 while the areas 32, 34, 36 and 38 of the other pair of remote marginal portions 20 are of the same length, but spaced slightly inwardly of the shorter longitudinal sides of the corresponding areas 30 as at 42.
When it is desired to form the door 10 from the panel member 12, the marginal portions 20 are reversely bent along the fold zones 18 over the first inner side 14 of the panel member 12. Thereafter, the marginal portions 20 are bent at substantially 90 degrees toward the outer side 16 of the panel member 12 along the fold zones 22 and are thereafter bent, at generally right angles, along the fold zones 24 toward the inner side 14 of the panel member 12. Thereafter, the marginal portions 20 are bent along the fold zones 26, at generally right angles, toward the inner side 14 of the panel member 12 and finally bent along the fold zones 28 toward the outer side 16 of the panel member 12.
When the panel member 12 has thus been folded, the beveled edges 40 adjacent ends of areas 30 are disposed in edge abutting relation, the ends of adjacent areas 32 are disposed in edge-to-side face abutting engagement, the ends of adjacent areas 34 are disposed in overlapped en8agement in surface-to-surface contact with each other, the ends of adjacent zones 36 are disposed in edge-to-outer side abutting engagement with each other and the ends of adjacent areas 38 are disposed in end edge to longitudinal edge abutting engagement with each other. Of course, after the door 10 has been formed the areas 38 are disposed in outer side to inner side abutting engagement with the opposing surfaces of the panel member 12 and may be secured directly thereto, if desired.
Further, the overlapped adjacent ends of the areas 34 may also be directly ~35~23 secured to each other.
In this manner, an extremely rigid sheet metal panel or door is formed having continuous peripheral reinforcing and the outer side of the door 10 is uninterrupted. Further, although not required, the various edge-to-side surface abutting portions of the adjacent area ends 34 and 36 may be secured together by welding and the end edge to longitudinal edge abutting portions of the ares 38 may be secured together by welding.
With attention now invited more specifically to Fig. 5 of the drawings, there will be seen a modified form of door referred to in general by the reference numeral 10' and which is substantially indentical to the door 10, except that the entire door structure is arcuate. Of course, in forming the door 10' more sophisticated bending equipment must be used in order to form the areas 30', 32', 34', 36' and 38' of one pair of opposite marginal portions 20l of the panel member 12' corresponding to the panel member 12 with the appropriate radii of curvature.
Claims (8)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A one-piece peripherally reinforced panel, said panel including a single panel member having first and second opposite sides and defining peripherally extend-ing marginal edges and a first fold zone generally paralleling each edge as well as second, third and fourth fold zones generally paralleling each first fold zone and each other and successively spaced from said first fold zone toward the corresponding edge, corresponding first and second zones defining a first marginal area there-between, corresponding second and third zones defining a second marginal area therebetween and corresponding third and fourth zones defining a third marginal area therebetween, said first marginal areas being reversely bent along said first fold zones over the first side of said panel member with said first fold zones defining the outer marginal borders of said panel, said second marginal areas being bent, along said second fold zones, at gener-ally right angles relative to said first marginal areas, outwardly away from said first side, said third marginal areas being bent, along said third fold zones, at generally right angles relative to said second marginal areas in-wardly over said one side in spaced relation relative thereto, the adjacent ends of adjacent third marginal areas being dis-posed in overlapped engagement with each other, and anchor-ing means anchoring the marginal portions of said third marginal areas remote from said second marginal areas to said panel member inwardly of this corresponding second fold zones.
2. The panel of claim 1 wherein said panel includes a fifth fold zone spaced between and generally paralleling each fourth fold zone and the corresponding marginal edge, a fourth marginal area being defined between corresponding fourth and fifth fold zones and a fifth marginal area being defined between each fifth fold zone and the corresponding marginal edge, said fourth marginal areas being bent at generally right angles along said fourth fold zones, relative to said third marginal areas, inward-ly toward said one side and said fifth marginal areas being bent at right angles along said fifth fold zones, relative to said fourth marginal areas, and closely over-lying said one side of said panel member.
3. The panel of claim 2 wherein the ends of adjacent fourth marginal areas are disposed in edge-to panel member side abutting relation.
4. The panel of claim 2 wherein said fifth marginal areas are abutted against said first side of said panel member.
5. The panel of claim 4 wherein said fifth marginal areas are secured to said first side of said panel member, and said fourth and fifth marginal areas comprise said anchoring means.
6. The panel of claim 5 wherein the ends of adjacent fourth marginal areas are disposed in edge-to-panel member side abutting relation.
7. The panel of claim 6 wherein the adjacent ends of adjacent fifth outer marginal areas are disposed in end edge-to-longitudinal edge abutting relation.
8. A one-piece peripherally reinforced panel, said panel including a single panel member having first and second opposite sides and defining peripherally extending marginal edges, a first fold zone generally paralleling each edge as well as second and third fold zones generally paralleling each first zone and each other and successively spaced from said first fold zone toward the correspond-ing edge, corresponding first and second zones defining a first marginal area therebetween, corresponding second and third zones defining a second marginal area therebetween and a third marginal area being defined between each third fold zone and the corresponding edge, said first marginal areas being reversely bent along said first fold zones over the first side of said panel member with said first fold zones defining the outer marginal border of said panel, said second marginal areas being bent along said second fold zones, at right angles relative to said first marginal areas outwardly away from said first side, said third marginal areas being bent along said third fold zones, at generally right angles relative to said second marginal areas inwardly over said one side in spaced relation relative thereto, the adjacent ends of adjacent third outer marginal areas being disposed in overlapped engagement with each other and anchoring means anchoring the marginal portions of said third marginal areas remote from said second marginal areas relative to said panel inwardly of the corresponding second outer marginal fold zones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000327807A CA1135123A (en) | 1979-05-17 | 1979-05-17 | One piece peripherally ribbed sheet metal door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000327807A CA1135123A (en) | 1979-05-17 | 1979-05-17 | One piece peripherally ribbed sheet metal door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1135123A true CA1135123A (en) | 1982-11-09 |
Family
ID=4114221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000327807A Expired CA1135123A (en) | 1979-05-17 | 1979-05-17 | One piece peripherally ribbed sheet metal door |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1135123A (en) |
-
1979
- 1979-05-17 CA CA000327807A patent/CA1135123A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |