CA1081631A - Box structure and prefabricated corners therefor - Google Patents
Box structure and prefabricated corners thereforInfo
- Publication number
- CA1081631A CA1081631A CA300,068A CA300068A CA1081631A CA 1081631 A CA1081631 A CA 1081631A CA 300068 A CA300068 A CA 300068A CA 1081631 A CA1081631 A CA 1081631A
- Authority
- CA
- Canada
- Prior art keywords
- corner
- prefabricated
- box structure
- corner piece
- members
- 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
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/44—Leg joints; Corner joints
- F16B12/50—Metal corner connections
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Abstract
BOX STRUCTURE AND PREFABRICATED CORNERS
THEREFOR
ABSTRACT OF THE INVENTION
A box structure comprising twelve generally L-section members arranged orthogonally to produce the edges of a hollow box, and eight corner pieces each corner piece comprising an orthogonal trihedron pressed from sheet metal with surfaces adapted to engage the inner faces of three of the twelve members, said surfaces having shoulders to receive the ends of said members.
THEREFOR
ABSTRACT OF THE INVENTION
A box structure comprising twelve generally L-section members arranged orthogonally to produce the edges of a hollow box, and eight corner pieces each corner piece comprising an orthogonal trihedron pressed from sheet metal with surfaces adapted to engage the inner faces of three of the twelve members, said surfaces having shoulders to receive the ends of said members.
Description
This invention relates to box structures and pre-fabricated corner pieces therefor.
The aim of the invention is to provide a simple and cheap construction for a box structure. The invention provides a prefabricated corner piece for a box structure comprising an orthogonal trihedron pressed from sheet metal and having surfaces adapted to engage the inner faces of generally L-section members arranged to project orthogonally, the surfaces having shoulders to receive the ends of the members wherein each surface comprises a substantially square corner surface, and additional surfaces extending the corner surface on its two sides which do not meet the other two corner surfaces, the shoulders lying along the two sides.
In addition, the invention provides a box structure comprising twelve generally L-section members arranged orthogonally to produce the edges of a hollow box, and eight corner pieces, each corner piece comprising an orthogonal trihedron pressed from sheet metal with surfaces adapted to engage the inner faces of three of the twelve members, the surfaces having shoulders to receive the ends of the members, wherein each surface comprises a substantially square corner ; surface, and additional surfaces extending the corner surface on its two sides which do not meet the other two corner surfaces, the shoulders lying along the two sides.
In order that the invention should be clearly understood, an exemplary embodiment thereof will now be described with refer-ence to the accompanying drawings, in which:-Figure 1 shows a prefabricated corner piece according to the invention, in perspective view; and Figure 2 shows a side elevation of a corner piece as in Figure 1 connected for use in a box structure.
rw/l ~ - 2 -Figure 1 shows a metal pressing having three sub-stantially square corner surfaces 10,11, 12. The surfaces are mutually at right angles and meet at an apex 13. The apex 13 preferably does not come to an exact point, but is smoothly rounded off. Those edges 14 of the corner surfaces which do not meet one , .. ~
~ rw/~ - 2a -1~ 8~ ~ 31 another are extended by triangu~ar additional surfaces 15. The additio~al surfa~es le in pairs ad~acent one another, and each pair forms a seating for ~ongitudinal members which are to form the edges of a hollow box structure. The additional surface 15 in each case lies slightly below the plane of the respective corner surfaces, 10, 11, ~2 by an amount approximately equal to the thickness of sheet metal to be used for the longitudinal members. Thus, along each edge 14 of the corner surfaces, a shoulder 16 is formed. Each additional surface 15 is drilled with three holes 17.
Figure 2 shows an enlarged view of a prefabricated corner piece as illustrated in Figure 1, with a single longitudinal member attached thereto. The member 20 is of L-section and fits snugly around the outside of two adjacent additional surfaces 15. The longitudinal member 20 is cut precisely at right angles to form an end surface 21 which fits closely against the shoulder 16. By this means, the construction of a box structure using a prefabricated corner piece as described becomes very simple. The longitudinal member 20 is mated with the additional surfaces 15 and the member slid until the end surface 21 lie against the shoulders 16. It is thus ensured that the corner is accurately positioned relative to the long-itudinal member, and the same applies to the other two longi-tudinal members which meet at that corner. Each corner piece is held together by rivetting, using the preformed holes 17.
For lighter gauge metal, a singie rivet only is needed; for heavier constructions, two ~r three rivets are used.
Another form of longitudina] member is shown in dotted 1081~;31 lines in Fig~re 2. In t~is c~se, ~he edges 22 o~ the member 20 are ~ ;~ec. -n~ . ;t as shown at 2~ and then turned back outwards at 24. This for~ls a ledge extending along every edge of the box structure which can receive a side panel 25, e.g.
an insulating panel. It will be seen that this method of construction allows the production of an extremely strong, cheap and easily fabricated box structure. In addition, the external surfaces of the box structure are almost entirely smooth since the outer surfaces of the preabricated corner piece, the longitudinal members and the side panels are all in alignment.
The prefabricated corner piece can be made out of sheet steel, for example 12 gauge or 14 gauge. It is conveniently formed from a generally circular blank and finally clipped to form the straight edges of the additional surfaces 15. The precise shape of the surfaces 15 is not~ however, critical.
The box structures are particularly adapted for housing air conditioning, venti~ating and heating equipmenk.
The aim of the invention is to provide a simple and cheap construction for a box structure. The invention provides a prefabricated corner piece for a box structure comprising an orthogonal trihedron pressed from sheet metal and having surfaces adapted to engage the inner faces of generally L-section members arranged to project orthogonally, the surfaces having shoulders to receive the ends of the members wherein each surface comprises a substantially square corner surface, and additional surfaces extending the corner surface on its two sides which do not meet the other two corner surfaces, the shoulders lying along the two sides.
In addition, the invention provides a box structure comprising twelve generally L-section members arranged orthogonally to produce the edges of a hollow box, and eight corner pieces, each corner piece comprising an orthogonal trihedron pressed from sheet metal with surfaces adapted to engage the inner faces of three of the twelve members, the surfaces having shoulders to receive the ends of the members, wherein each surface comprises a substantially square corner ; surface, and additional surfaces extending the corner surface on its two sides which do not meet the other two corner surfaces, the shoulders lying along the two sides.
In order that the invention should be clearly understood, an exemplary embodiment thereof will now be described with refer-ence to the accompanying drawings, in which:-Figure 1 shows a prefabricated corner piece according to the invention, in perspective view; and Figure 2 shows a side elevation of a corner piece as in Figure 1 connected for use in a box structure.
rw/l ~ - 2 -Figure 1 shows a metal pressing having three sub-stantially square corner surfaces 10,11, 12. The surfaces are mutually at right angles and meet at an apex 13. The apex 13 preferably does not come to an exact point, but is smoothly rounded off. Those edges 14 of the corner surfaces which do not meet one , .. ~
~ rw/~ - 2a -1~ 8~ ~ 31 another are extended by triangu~ar additional surfaces 15. The additio~al surfa~es le in pairs ad~acent one another, and each pair forms a seating for ~ongitudinal members which are to form the edges of a hollow box structure. The additional surface 15 in each case lies slightly below the plane of the respective corner surfaces, 10, 11, ~2 by an amount approximately equal to the thickness of sheet metal to be used for the longitudinal members. Thus, along each edge 14 of the corner surfaces, a shoulder 16 is formed. Each additional surface 15 is drilled with three holes 17.
Figure 2 shows an enlarged view of a prefabricated corner piece as illustrated in Figure 1, with a single longitudinal member attached thereto. The member 20 is of L-section and fits snugly around the outside of two adjacent additional surfaces 15. The longitudinal member 20 is cut precisely at right angles to form an end surface 21 which fits closely against the shoulder 16. By this means, the construction of a box structure using a prefabricated corner piece as described becomes very simple. The longitudinal member 20 is mated with the additional surfaces 15 and the member slid until the end surface 21 lie against the shoulders 16. It is thus ensured that the corner is accurately positioned relative to the long-itudinal member, and the same applies to the other two longi-tudinal members which meet at that corner. Each corner piece is held together by rivetting, using the preformed holes 17.
For lighter gauge metal, a singie rivet only is needed; for heavier constructions, two ~r three rivets are used.
Another form of longitudina] member is shown in dotted 1081~;31 lines in Fig~re 2. In t~is c~se, ~he edges 22 o~ the member 20 are ~ ;~ec. -n~ . ;t as shown at 2~ and then turned back outwards at 24. This for~ls a ledge extending along every edge of the box structure which can receive a side panel 25, e.g.
an insulating panel. It will be seen that this method of construction allows the production of an extremely strong, cheap and easily fabricated box structure. In addition, the external surfaces of the box structure are almost entirely smooth since the outer surfaces of the preabricated corner piece, the longitudinal members and the side panels are all in alignment.
The prefabricated corner piece can be made out of sheet steel, for example 12 gauge or 14 gauge. It is conveniently formed from a generally circular blank and finally clipped to form the straight edges of the additional surfaces 15. The precise shape of the surfaces 15 is not~ however, critical.
The box structures are particularly adapted for housing air conditioning, venti~ating and heating equipmenk.
Claims (12)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A prefabricated corner piece for a box structure comprising an orthogonal trihedron pressed from sheet metal and having surfaces adapted to engage the inner faces of generally L-section members arranged to project orthogonally, said surfaces having shoulders to receive the ends of said members wherein each surface comprises a substantially square corner surface, and additional surfaces extending the corner surface on its two sides which do not meet the other two corner surfaces, said shoulders lying along said two sides.
2. A prefabricated corner piece as claimed in claim 1 wherein said additional surfaces are triangular.
3. A prefabricated corner piece as claimed in claim 2 wherein the additional surfaces on adjacent sides of two corner surfaces meet.
4. A prefabricated corner piece as claimed in claim 1, 2 or 3 wherein the meeting point of the three corner surfaces is smoothly rounded off.
5. A prefabricated corner piece as claimed in claims 1, 2 or 3 wherein the additional surfaces have holes to receive fixing means for said L-section members.
6. A box structure comprising twelve generally L-section members arranged orthogonally to produce the edges of a hollow box, and eight corner pieces, each corner piece comprising an orthogonal trihedron pressed from sheet metal with surfaces adapted to engage the inner faces of three of the twelve members, said surfaces having shoulders to receive the ends of said members, wherein each surface comprises a substantially square corner surface, and additional surfaces extending the corner surface on its two sides which do not meet the other two corner surfaces, said shoulders lying along said two sides.
7. A prefabricated corner piece as claimed in claim 6 wherein said additional surfaces are triangular.
8. A prefabricated corner piece as claimed in claim 6 wherein the additional surfaces on adjacent sides of two corner surfaces meet.
9. A prefabricated corner piece as claimed in claim 6 wherein the meeting point of the three corner surfaces is smoothly rounded off.
10. A box structure as claimed in claim 7 wherein said L-section members are rebated to form a ledge around every face of the structure to receive a closure panel.
11. A box structure as claimed in claim 7, 8 or 9 wherein said L-section members are rebated to form a ledge around every face of the structure to receive a closure panel.
12. A box structure as claimed in claim 10 having insulating panels fitted to close each face of the structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1399277A GB1523844A (en) | 1977-04-01 | 1977-04-01 | Box structure and prefabricated corner pieces therefor |
| GB13992/77 | 1977-04-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1081631A true CA1081631A (en) | 1980-07-15 |
Family
ID=10033064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA300,068A Expired CA1081631A (en) | 1977-04-01 | 1978-03-30 | Box structure and prefabricated corners therefor |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1081631A (en) |
| GB (1) | GB1523844A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2216621B (en) * | 1988-02-19 | 1992-06-10 | Brian Charles Smith | Constructor corners |
| GB2232426B (en) * | 1989-06-08 | 1993-11-17 | Square D Co | Framework assembly system |
-
1977
- 1977-04-01 GB GB1399277A patent/GB1523844A/en not_active Expired
-
1978
- 1978-03-30 CA CA300,068A patent/CA1081631A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1523844A (en) | 1978-09-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |