CA2044331A1 - Modular steel door - Google Patents
Modular steel doorInfo
- Publication number
- CA2044331A1 CA2044331A1 CA 2044331 CA2044331A CA2044331A1 CA 2044331 A1 CA2044331 A1 CA 2044331A1 CA 2044331 CA2044331 CA 2044331 CA 2044331 A CA2044331 A CA 2044331A CA 2044331 A1 CA2044331 A1 CA 2044331A1
- Authority
- CA
- Canada
- Prior art keywords
- door
- crosspieces
- steel
- stiles
- side walls
- 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.)
- Abandoned
Links
Abstract
ABSTRACT OF THE DISCLOSURE
A steel door made up of a plurality of modular steel elements.
A pair of steel stiles having C-shaped cross-sections are provided, each having a pair of parallel side walls facing each other and joined by a connecting wall defining the thickness of the door. The other ends of the parallel side walls define inwardly connecting lips that are preferably perpendicular to the parallel side walls. Two pairs of upper and lower crosspieces are mounted in sandwich between the steel stiles, each of the crosspieces defining a central portion that is preferably flat and terminates laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, the lips being preferably perpendicular to the central portion. The crosspieces are selected from the group consisting of rails and panels and face each other, respectively, with their lips directed toward each other, The lips of the upper and lower crosspieces are fastened to the connecting lips of the corresponding side walls of the steel stiles so that the flat portions of the upper and lower crosspieces and the parallel side walls of the steel stiles together define front and rear sides of the door. Preferably, reinforcing frame members may be mounted inside the stiles and crosspieces, the reinforcing frame members being embedded in an insulating material filling the space left between the crosspieces, and the space inside the stiles, that is unoccupied by the reinforced frame members.
A steel door made up of a plurality of modular steel elements.
A pair of steel stiles having C-shaped cross-sections are provided, each having a pair of parallel side walls facing each other and joined by a connecting wall defining the thickness of the door. The other ends of the parallel side walls define inwardly connecting lips that are preferably perpendicular to the parallel side walls. Two pairs of upper and lower crosspieces are mounted in sandwich between the steel stiles, each of the crosspieces defining a central portion that is preferably flat and terminates laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, the lips being preferably perpendicular to the central portion. The crosspieces are selected from the group consisting of rails and panels and face each other, respectively, with their lips directed toward each other, The lips of the upper and lower crosspieces are fastened to the connecting lips of the corresponding side walls of the steel stiles so that the flat portions of the upper and lower crosspieces and the parallel side walls of the steel stiles together define front and rear sides of the door. Preferably, reinforcing frame members may be mounted inside the stiles and crosspieces, the reinforcing frame members being embedded in an insulating material filling the space left between the crosspieces, and the space inside the stiles, that is unoccupied by the reinforced frame members.
Description
;~Of~4L33~L
TITLE OF ~HE INVENTION
Modular steel door BACK~ROUND OF TH~ INVENTION
Field of the Invention This invention is directed to a steel door made up of a plurality of modular steel elements.
Description of Related ~rt As it is well known, steel doors are generally made in one piece incorporating a reinforcing structure such as wood, embedded in polyurethane. If one wishes a window in the door, an opening must be made in the steel plates forming the door and in the reinforcing structure to receive the wi.ndow. The cost involved for making this opening and installing in it the window add to the total costs. The elemsnts which are removed also add to pollution.
SUM~RY OF ~E INVF~TION
The invention overcomes at least some of the problems enumerated above.
Broadly stated, the invention is directed to a steel door made up of a plurality of modular steel elements comprising at least:
- a pair of modular steel stiles having squared C shaped cross-sections, each of the steel stiles having a pair of parallel side walls facing each other, said parallel side walls having opposite ends, one pair of said ands being joined by a 33~
connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of the parallel side walls defining fastening portions;
- two pairs of upper and lower modular crosspieces mounted in sandwich between the steel stiles, said upper and lower crosspieces facing each other, respectively, and each having a central portion ended by a pair of opposite fastening portions, said crosspieces being selected from the group consisting of rails and panels; and - means to fasten the fastening portions of the upper and lower crosspieces to the fastening portions of corresponding side walls of the steel stiles so that the central portions of said upper and lower crosspieces and the parallel side walls of the steel stiles to which they are fastened together define front and rear sides of the door.
In a preferred embodiment, the invention is directed to a steel door made up of a plurality of modular steel elements comprising at least:
- a pair of steel stiles having squared C-shaped cross-sections, each of the steel stiles having a pair of parallel side walls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of said parallel side walls defining inwardly connecting lips:
- two pairs of upper and lower crosspieces mounted in sandwich between the steel stiles, each of the crosspieces defining a central portion terminating laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, the crosspieces being selected from the group consisting of rails and panels, the upper and lower crosspiecas facing each other respectively, with their lips directed toward each other;
and ~0~ 3~
- means to fasten the lips of the upper and lower crosspieces to the connecting lips of the corresponding side walls of the steel stiles so that the central portions of the upper and lower crosspieces and the parallel side walls oE the steel stiles to which they are fastened, together define front and rear sides of the steel door.
In a more preferred embodiment, the invention is directed to a steel door made up of a plurality of modular steel elements comprising at least:
- a pair of steel stiles having squared C-shaped cross-sections, each of the steel stiles having a pair of paralle~
side walls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of the parallel side walls defining inwardly connecting lips that are preferably perpendicular to the parallel side walls;
- two pairs of upper and lower crosspieces mounted.in sandwich between the steel stiles, each of the arosspieces defining a central portion that is preferably flat and terminates laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, the lips being preferably perpendicular to the central portion;
the crosspieces being selected from the group consisting of rails and panels and facing each other, respective].y, with their lips directed toward each other;
- means to fasten the lips of the upper and lower crosspieces to the connecting lips of the corresponding side walls of the steel stiles so that the flat portions of the upper and lower crosspieces and the parallel side walls of the steel stiles together define front and rear sides of the door; and - reinforcing frame members mounted inside thé stiles and crosspiecesl the reinPorcing ~rame members being embedded in 204L1L33~L
an insulating material filling up the space left between the crosspieces, and the space inside the stiles that is unoccupied by the reinforced frame members.
In the drawings which illustrate particular embodiments of the invention, Figure 1 is a front elevational view of a steel door according to the invention shown partly in cross section;
Figure 2 is a cross-sectional view taken along line 2-2 of Figure l;
Figures 2a, 2b, 2c and 2d are enlarged views of portions of Figure 2, illustrating the shape of different fastening portions useful for fastening the stiles to the crosspieces;
Figure 3 is a front elevational view of another steel door according to the invention with a central panel and an intermediary crosspiece;
Figures 4 and 5 are front elevational views of two other steel doors according to the invention and ~igures 6 and 7 are cross-sectional views of windows made in accordance with the invention.
DES~RIP~ION OF PREFE~RED EMBODI~TS OF THE INYENTION
The steel door 10, shown in Figures 1 and 2, comprises a pair of steel stiles 12 and 14 and a pair of upper and lower crosspieces 16, 18, and 20, 22.
L3~
The steel stiles ha~e square C~shaped cross-sections. Each stile has a pair of parallel side walls 12a and 12b, and 14a and 14b respectively, that face each other. The side walls have, at one of their ends, a connecting wall 13c and 14c spacing the parallel side walls and defining the thickness of the door, and at their o~her ends, a set of connecting lips 12d, 12e, and 14d, 14e.
The upper and lower crosspieces are mounted in sandwich between the pair of stiles, with one pair of upper and lower crosspieces on one side of the stiles and the other pair of upper and lower crosspieces on the other side of the same stiles. Each of the crosspieces defines a central portion which may be flat, such as shown in 20a and 22a/ but need not be. The central portion terminates laterally into inwardly projecting lips 20b, 20c and 22b, 22c, so as to define a U-shaped cross-section. The upper and lower crosspieces face each other, respectivelyl with their lips directed toward each other, as shown in Figure 2. The lips of each pair of upper and lower crosspiecas are adjacent to the connecting lips of one of the side walls of the steel stiles, as shown in Figure 2.
These modular steel elements are fastened to one another so that the central flat portions 20a and 22a of one pair of upper and lower crosspieces 20 a~d 22 define one side, such as, for example, the front side of the door, together with the corresponding side walls of the steel stilss 12 and 14.
Similarly, the central portions of the other pair o~ upper and lower crosspieces 16 and 18, together with the opposite side walls of the stiles, define the other side, e.g. the rear side of the steel door. As can be understood, what was said for crosspieces 16, 1~, 20 and 22 also applies to any other pair of crosspieces that one may wish to add.
3 3 ~
The lips, say 12~, 22b for instance, are preferably perpendicular to the side walls 12b and to the central portion 22a respectively. By way of example, the lips may be 1/8 to 3/4 inch. However, they need not be perpendicular and may be at any angle, as shown at Figure 2a, provided the adjoining lips 12e' and 22b' of the stiles be in parallel relationship to be fastened to one another.
The lips or fastening portions of the stiles and crosspieces may be of different shapes and designs~ For instance, as shown in Figure 2b, the stiles may be provided with a depressed portion 12f enabling a straight crosspiece 22a' to be received and welded or glued thereon. ~s shown in Figure 2c, the two side walls of the stiles may also have their free ends shaped to define a U-shaped portion s~ch as shown at 12g, Eor receiving a crosspiece 22a". As can be seen, this crosspiece ~ay be either straight or curved in its central portion. ~s shown in Figure 2d, ~he stiles may also be provided with one single U shaped portion 12h to receive a pair of crosspieces 22x and 20x. These illustrate only some of the numerous designs which may be used for the fastening portions of the stiles and crosspieces and this should not be construed to limit Applicant's invention.
Thase lips may be fastened in numerous ways, for instance by mechanical joints, including bolts and nuts, screws or rivets, or by other means such as soldering, welding, and gluing with epoxy resin or double-faced self-adhesive.
Preferably~ the steel stiles and the crosspieces may incorporate reinforcing ~rame members inside their structure as shown in Figure 1 at 30, 32, 3~, 36, 38, 40, 42 and 44.
These members may be wood studs. Preferably, the reinforced q~ 43~
frame members are embedded in an insulating material 45, the insulating material filling the gap left between the crosspieces and the space inside the stiles that is unoccupied by the reinforced frame members. In a preEerred embodiment of the invention applied to a 1 3/4" thick door, the reinforcing frame members may consist of a pair of 1 3/4" x 1" x 13~16"
pine wood studs bearing against the connecting wall and the connecting lips o~ each stile. Similar studs may be used for the crosspieces such as shown at 38 and 40 for crosspiece 16.
The insulating material can be a polymeric foam such as polyurethane or, more preferably, low density polyisocyanate.
Foam polystyrene may also be used, as well as sheets of polystyrene. The foam may be injected into the steel door.
Preferably, the corners of the door are provided with triangular reinforcements that can be made of pine wood, having a 45 angle such as shown at 46, 48, 50 and 52. The stiles 12 and 14 may be positioned with respect to crosspieces such as shown at ~Oa and 16a, as one wishes, so as to be in recess, to emerge ~rom or to be flush with the crosspieces~ The crosspieces may be ~lat or curved. They may have or include relie~ surfacing.
The reinforcing members may also consist of polymeric material such as polyvinyl chloride, high density polyurethane and the like, wood fibers, particles or boards and other wood substrates having the requested strength.
The stee7 that is used may be polished st~el or wood grain steel.
~04fl33~
In a preferred embodiment, the thickness of the door is of about 1 to 3 inches and more preferably 1 3/4 to 2 1/4 inches, but this may vary as desired.
As shown in Figure 3, the door may also include a pair of intermediary crosspieces 6V. As also shown at 62 in Figure 3, the door may be provided with one or more central panels 62, ~4. Alternatively, as shown in Figure 4, the door may incorporate a glass panel ~7 and/or a screen 68 above a solid panel 66. A window panel is shown at 69 in Pigure 5.
In a particular embodiment, the door includes a glass panel having low emissivity. This glass panel may include, as shown in Figure ~, a first glass pane 70 having a thin metallic coating, a space, a polyester sheet 72, a space, another glass pane 74 having on the inside a thin metallic coating. The space between the various glass panes may be filled up with krypton or argon as is known per se. The space is provided with a metallic retaining frame 76 to form a unitary unit.
Xn another preferred embodiment, as shown in Figure 7, the glass panel or window may consist in a first glass pane 80, a metallic coating, a sheet of polyester 82, a spacer therebetween, another sheet of polyester ~4, another metallic coating and another glass pane 86. The selected polyester has a low emissivity and more preferably, coated with silver.
The window may also be a lead glass window, especially stain glass window, and it may replace or be used on top of polyester sheets as shown in Figures 6 and 7, the stain glass being protected by other glass panes such as 80 and 86 or 70 and 74, acting not only ~or protection but also to increase the low emissivity of the window.
Z04~33~L
Although the present invention has been explained hereinabove by way of preferred embodiments thereof, it should be pointed out that any modiflcations to these preferred embodiments, within the scope of the appended claims, is not deemed to change or alter the nature and scope of the invention.
TITLE OF ~HE INVENTION
Modular steel door BACK~ROUND OF TH~ INVENTION
Field of the Invention This invention is directed to a steel door made up of a plurality of modular steel elements.
Description of Related ~rt As it is well known, steel doors are generally made in one piece incorporating a reinforcing structure such as wood, embedded in polyurethane. If one wishes a window in the door, an opening must be made in the steel plates forming the door and in the reinforcing structure to receive the wi.ndow. The cost involved for making this opening and installing in it the window add to the total costs. The elemsnts which are removed also add to pollution.
SUM~RY OF ~E INVF~TION
The invention overcomes at least some of the problems enumerated above.
Broadly stated, the invention is directed to a steel door made up of a plurality of modular steel elements comprising at least:
- a pair of modular steel stiles having squared C shaped cross-sections, each of the steel stiles having a pair of parallel side walls facing each other, said parallel side walls having opposite ends, one pair of said ands being joined by a 33~
connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of the parallel side walls defining fastening portions;
- two pairs of upper and lower modular crosspieces mounted in sandwich between the steel stiles, said upper and lower crosspieces facing each other, respectively, and each having a central portion ended by a pair of opposite fastening portions, said crosspieces being selected from the group consisting of rails and panels; and - means to fasten the fastening portions of the upper and lower crosspieces to the fastening portions of corresponding side walls of the steel stiles so that the central portions of said upper and lower crosspieces and the parallel side walls of the steel stiles to which they are fastened together define front and rear sides of the door.
In a preferred embodiment, the invention is directed to a steel door made up of a plurality of modular steel elements comprising at least:
- a pair of steel stiles having squared C-shaped cross-sections, each of the steel stiles having a pair of parallel side walls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of said parallel side walls defining inwardly connecting lips:
- two pairs of upper and lower crosspieces mounted in sandwich between the steel stiles, each of the crosspieces defining a central portion terminating laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, the crosspieces being selected from the group consisting of rails and panels, the upper and lower crosspiecas facing each other respectively, with their lips directed toward each other;
and ~0~ 3~
- means to fasten the lips of the upper and lower crosspieces to the connecting lips of the corresponding side walls of the steel stiles so that the central portions of the upper and lower crosspieces and the parallel side walls oE the steel stiles to which they are fastened, together define front and rear sides of the steel door.
In a more preferred embodiment, the invention is directed to a steel door made up of a plurality of modular steel elements comprising at least:
- a pair of steel stiles having squared C-shaped cross-sections, each of the steel stiles having a pair of paralle~
side walls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of the parallel side walls defining inwardly connecting lips that are preferably perpendicular to the parallel side walls;
- two pairs of upper and lower crosspieces mounted.in sandwich between the steel stiles, each of the arosspieces defining a central portion that is preferably flat and terminates laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, the lips being preferably perpendicular to the central portion;
the crosspieces being selected from the group consisting of rails and panels and facing each other, respective].y, with their lips directed toward each other;
- means to fasten the lips of the upper and lower crosspieces to the connecting lips of the corresponding side walls of the steel stiles so that the flat portions of the upper and lower crosspieces and the parallel side walls of the steel stiles together define front and rear sides of the door; and - reinforcing frame members mounted inside thé stiles and crosspiecesl the reinPorcing ~rame members being embedded in 204L1L33~L
an insulating material filling up the space left between the crosspieces, and the space inside the stiles that is unoccupied by the reinforced frame members.
In the drawings which illustrate particular embodiments of the invention, Figure 1 is a front elevational view of a steel door according to the invention shown partly in cross section;
Figure 2 is a cross-sectional view taken along line 2-2 of Figure l;
Figures 2a, 2b, 2c and 2d are enlarged views of portions of Figure 2, illustrating the shape of different fastening portions useful for fastening the stiles to the crosspieces;
Figure 3 is a front elevational view of another steel door according to the invention with a central panel and an intermediary crosspiece;
Figures 4 and 5 are front elevational views of two other steel doors according to the invention and ~igures 6 and 7 are cross-sectional views of windows made in accordance with the invention.
DES~RIP~ION OF PREFE~RED EMBODI~TS OF THE INYENTION
The steel door 10, shown in Figures 1 and 2, comprises a pair of steel stiles 12 and 14 and a pair of upper and lower crosspieces 16, 18, and 20, 22.
L3~
The steel stiles ha~e square C~shaped cross-sections. Each stile has a pair of parallel side walls 12a and 12b, and 14a and 14b respectively, that face each other. The side walls have, at one of their ends, a connecting wall 13c and 14c spacing the parallel side walls and defining the thickness of the door, and at their o~her ends, a set of connecting lips 12d, 12e, and 14d, 14e.
The upper and lower crosspieces are mounted in sandwich between the pair of stiles, with one pair of upper and lower crosspieces on one side of the stiles and the other pair of upper and lower crosspieces on the other side of the same stiles. Each of the crosspieces defines a central portion which may be flat, such as shown in 20a and 22a/ but need not be. The central portion terminates laterally into inwardly projecting lips 20b, 20c and 22b, 22c, so as to define a U-shaped cross-section. The upper and lower crosspieces face each other, respectivelyl with their lips directed toward each other, as shown in Figure 2. The lips of each pair of upper and lower crosspiecas are adjacent to the connecting lips of one of the side walls of the steel stiles, as shown in Figure 2.
These modular steel elements are fastened to one another so that the central flat portions 20a and 22a of one pair of upper and lower crosspieces 20 a~d 22 define one side, such as, for example, the front side of the door, together with the corresponding side walls of the steel stilss 12 and 14.
Similarly, the central portions of the other pair o~ upper and lower crosspieces 16 and 18, together with the opposite side walls of the stiles, define the other side, e.g. the rear side of the steel door. As can be understood, what was said for crosspieces 16, 1~, 20 and 22 also applies to any other pair of crosspieces that one may wish to add.
3 3 ~
The lips, say 12~, 22b for instance, are preferably perpendicular to the side walls 12b and to the central portion 22a respectively. By way of example, the lips may be 1/8 to 3/4 inch. However, they need not be perpendicular and may be at any angle, as shown at Figure 2a, provided the adjoining lips 12e' and 22b' of the stiles be in parallel relationship to be fastened to one another.
The lips or fastening portions of the stiles and crosspieces may be of different shapes and designs~ For instance, as shown in Figure 2b, the stiles may be provided with a depressed portion 12f enabling a straight crosspiece 22a' to be received and welded or glued thereon. ~s shown in Figure 2c, the two side walls of the stiles may also have their free ends shaped to define a U-shaped portion s~ch as shown at 12g, Eor receiving a crosspiece 22a". As can be seen, this crosspiece ~ay be either straight or curved in its central portion. ~s shown in Figure 2d, ~he stiles may also be provided with one single U shaped portion 12h to receive a pair of crosspieces 22x and 20x. These illustrate only some of the numerous designs which may be used for the fastening portions of the stiles and crosspieces and this should not be construed to limit Applicant's invention.
Thase lips may be fastened in numerous ways, for instance by mechanical joints, including bolts and nuts, screws or rivets, or by other means such as soldering, welding, and gluing with epoxy resin or double-faced self-adhesive.
Preferably~ the steel stiles and the crosspieces may incorporate reinforcing ~rame members inside their structure as shown in Figure 1 at 30, 32, 3~, 36, 38, 40, 42 and 44.
These members may be wood studs. Preferably, the reinforced q~ 43~
frame members are embedded in an insulating material 45, the insulating material filling the gap left between the crosspieces and the space inside the stiles that is unoccupied by the reinforced frame members. In a preEerred embodiment of the invention applied to a 1 3/4" thick door, the reinforcing frame members may consist of a pair of 1 3/4" x 1" x 13~16"
pine wood studs bearing against the connecting wall and the connecting lips o~ each stile. Similar studs may be used for the crosspieces such as shown at 38 and 40 for crosspiece 16.
The insulating material can be a polymeric foam such as polyurethane or, more preferably, low density polyisocyanate.
Foam polystyrene may also be used, as well as sheets of polystyrene. The foam may be injected into the steel door.
Preferably, the corners of the door are provided with triangular reinforcements that can be made of pine wood, having a 45 angle such as shown at 46, 48, 50 and 52. The stiles 12 and 14 may be positioned with respect to crosspieces such as shown at ~Oa and 16a, as one wishes, so as to be in recess, to emerge ~rom or to be flush with the crosspieces~ The crosspieces may be ~lat or curved. They may have or include relie~ surfacing.
The reinforcing members may also consist of polymeric material such as polyvinyl chloride, high density polyurethane and the like, wood fibers, particles or boards and other wood substrates having the requested strength.
The stee7 that is used may be polished st~el or wood grain steel.
~04fl33~
In a preferred embodiment, the thickness of the door is of about 1 to 3 inches and more preferably 1 3/4 to 2 1/4 inches, but this may vary as desired.
As shown in Figure 3, the door may also include a pair of intermediary crosspieces 6V. As also shown at 62 in Figure 3, the door may be provided with one or more central panels 62, ~4. Alternatively, as shown in Figure 4, the door may incorporate a glass panel ~7 and/or a screen 68 above a solid panel 66. A window panel is shown at 69 in Pigure 5.
In a particular embodiment, the door includes a glass panel having low emissivity. This glass panel may include, as shown in Figure ~, a first glass pane 70 having a thin metallic coating, a space, a polyester sheet 72, a space, another glass pane 74 having on the inside a thin metallic coating. The space between the various glass panes may be filled up with krypton or argon as is known per se. The space is provided with a metallic retaining frame 76 to form a unitary unit.
Xn another preferred embodiment, as shown in Figure 7, the glass panel or window may consist in a first glass pane 80, a metallic coating, a sheet of polyester 82, a spacer therebetween, another sheet of polyester ~4, another metallic coating and another glass pane 86. The selected polyester has a low emissivity and more preferably, coated with silver.
The window may also be a lead glass window, especially stain glass window, and it may replace or be used on top of polyester sheets as shown in Figures 6 and 7, the stain glass being protected by other glass panes such as 80 and 86 or 70 and 74, acting not only ~or protection but also to increase the low emissivity of the window.
Z04~33~L
Although the present invention has been explained hereinabove by way of preferred embodiments thereof, it should be pointed out that any modiflcations to these preferred embodiments, within the scope of the appended claims, is not deemed to change or alter the nature and scope of the invention.
Claims (14)
1. A steel door made up of a plurality of modular steel elements comprising at least:
- a pair of modular steel stiles having squared C-shaped cross-sections, each of aid steel stiles having a pair of parallel side walls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of said parallel side walls defining fastening portions;
- two pairs of upper and lower modular crosspieces mounted in sandwich between the steel stiles, said upper and lower crosspieces facing each other, respectively and each having a central portion ended by a pair of opposite fastening portions, said crosspieces being selected from the group consisting of rails and panels; and - means to fasten the fastening portions of said upper and lower crosspieces to the fastening portions of corresponding side walls of said steel stiles so that the central portions of said upper and lower crosspieces and the parallel side walls of the steel stiles to which they are fastened together define front and rear sides of the door.
- a pair of modular steel stiles having squared C-shaped cross-sections, each of aid steel stiles having a pair of parallel side walls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of said parallel side walls defining fastening portions;
- two pairs of upper and lower modular crosspieces mounted in sandwich between the steel stiles, said upper and lower crosspieces facing each other, respectively and each having a central portion ended by a pair of opposite fastening portions, said crosspieces being selected from the group consisting of rails and panels; and - means to fasten the fastening portions of said upper and lower crosspieces to the fastening portions of corresponding side walls of said steel stiles so that the central portions of said upper and lower crosspieces and the parallel side walls of the steel stiles to which they are fastened together define front and rear sides of the door.
2. A steel door made up of a plurality of modular steel elements comprising at least:
- a pair of steel stiles having squared C-shaped cross-sections, each of said steel stiles having a pair of parallel side walls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of said parallel side walls defining inwardly connecting lips;
- two pairs of upper and lower crosspieces mounted in sandwich between the steel stiles, each of said crosspieces defining a central portion terminating laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, said crosspieces being selected from the group consisting of rails and panels, said upper and lower crosspieces facing each other respectively, with their lips directed toward each other;
and - means to fasten the lips of said upper and lower crosspieces to the connecting lips of the corresponding side walls of said steel stiles so that the central portions of said upper and lower crosspieces and the parallel side walls of said steel stiles to which they are fastened, together define front and rear sides of the steel door.
- a pair of steel stiles having squared C-shaped cross-sections, each of said steel stiles having a pair of parallel side walls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing the parallel side walls and defining the thickness of the door, the other ends of said parallel side walls defining inwardly connecting lips;
- two pairs of upper and lower crosspieces mounted in sandwich between the steel stiles, each of said crosspieces defining a central portion terminating laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, said crosspieces being selected from the group consisting of rails and panels, said upper and lower crosspieces facing each other respectively, with their lips directed toward each other;
and - means to fasten the lips of said upper and lower crosspieces to the connecting lips of the corresponding side walls of said steel stiles so that the central portions of said upper and lower crosspieces and the parallel side walls of said steel stiles to which they are fastened, together define front and rear sides of the steel door.
3. A steel door made up of a plurality of modular steel elements comprising at least:
- a pair of steel stiles having squared C-shaped cross-sections, each of said steel stiles having a pair of parallel sidewalls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing said parallel side walls and defining the thickness of the door, the other ends of said parallel side walls defining inwardly connecting lips;
- two pairs of upper and lower crosspieces mounted in sandwich between said steel stiles, each of said crosspieces defining a central portion terminating laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, the lips being preferably perpendicular to the central portion; said crosspieces being selected from the group consisting of rails and panels and facing each other, respectively, with their lips directed toward each other;
- means to fasten the lips of said upper and lower crosspieces to the connecting lips of the corresponding side walls of the steel stiles so that the flat portions of said upper and lower crosspieces and the parallel side walls of said steel stiles together define front and rear sides of the door; and - reinforcing frame members mounted inside said stiles and crosspieces, said reinforcing frame members being embedded in an insulating material filling up the space left between said crosspieces, and the space inside said stiles that is unoccupied by said reinforced frame members.
- a pair of steel stiles having squared C-shaped cross-sections, each of said steel stiles having a pair of parallel sidewalls facing each other, said parallel side walls having opposite ends, one pair of said ends being joined by a connecting wall spacing said parallel side walls and defining the thickness of the door, the other ends of said parallel side walls defining inwardly connecting lips;
- two pairs of upper and lower crosspieces mounted in sandwich between said steel stiles, each of said crosspieces defining a central portion terminating laterally into inwardly projecting lips, thereby giving each crosspiece a U-shaped cross-section, the lips being preferably perpendicular to the central portion; said crosspieces being selected from the group consisting of rails and panels and facing each other, respectively, with their lips directed toward each other;
- means to fasten the lips of said upper and lower crosspieces to the connecting lips of the corresponding side walls of the steel stiles so that the flat portions of said upper and lower crosspieces and the parallel side walls of said steel stiles together define front and rear sides of the door; and - reinforcing frame members mounted inside said stiles and crosspieces, said reinforcing frame members being embedded in an insulating material filling up the space left between said crosspieces, and the space inside said stiles that is unoccupied by said reinforced frame members.
4. The door as defined in claim 3, wherein said stiles and crosspieces are flush with one another.
5. The door as defined in claim 3, wherein said stiles emerge from or are in recess of said crosspieces.
6. The door as defined in claim 3, wherein said lower crosspieces consist of panels of about half the height of the door.
7. The door as defined in claim 3, further comprising at least another pair of intermediary crosspieces.
8. The door as defined in claim 3, further comprising a pair of intermediary crosspieces and a central panel mounted in between said intermediary crosspiece and lower crosspieces.
9. The door as defined in claim 3, wherein said thickness of said door is from about 1 to about 3 inches.
10. The door as defined in claim 3, wherein said reinforcing frame is made of wood.
11. The door as defined in claim 3, wherein said insulating material is a foamed polymeric material.
12 12. The door as defined in claim 11, wherein said polymeric material is selected amongst polyurethane and polystyrene.
18. The door as defined in claim 3, wherein said lips are from about 1/8 to 3/4 inch.
14. The door as defined in claim 3, wherein said fastening means consist of screws or rivets.
15. The door as defined in claim 3, wherein said fastening means consist of soldering or welding spots.
16. The door as defined in claim 3, wherein said fastening means consist of glue.
17. The door as defined in claim 3, wherein said connecting lips of said stiles are perpendicular to said parallel walls, and said lips of said crosspieces are perpendicular to their respective central portions.
18. The door as defined in claim 3, wherein said door incorporates a window.
19. The door as defined in claim 18, wherein said window is made up of two glass panes each having a thin metallic coating for low emissivity, and, in between said panes, a polyester sheet, said polyester sheet being spaced from each of said sheets of glass with a gas selected from argon and krypton.
20. The door as defined in claim 18, wherein said window comprises two glass panes having a thin metallic coating for low emissivity, having a pair of polyester sheets mounted
18. The door as defined in claim 3, wherein said lips are from about 1/8 to 3/4 inch.
14. The door as defined in claim 3, wherein said fastening means consist of screws or rivets.
15. The door as defined in claim 3, wherein said fastening means consist of soldering or welding spots.
16. The door as defined in claim 3, wherein said fastening means consist of glue.
17. The door as defined in claim 3, wherein said connecting lips of said stiles are perpendicular to said parallel walls, and said lips of said crosspieces are perpendicular to their respective central portions.
18. The door as defined in claim 3, wherein said door incorporates a window.
19. The door as defined in claim 18, wherein said window is made up of two glass panes each having a thin metallic coating for low emissivity, and, in between said panes, a polyester sheet, said polyester sheet being spaced from each of said sheets of glass with a gas selected from argon and krypton.
20. The door as defined in claim 18, wherein said window comprises two glass panes having a thin metallic coating for low emissivity, having a pair of polyester sheets mounted
13 between said glass panes and treated with a metallic coating for low emissivity, said polyester sheets being spaced from each other and separated by a gas selected from krypton and argon, said glass panes and polyester sheets being sealably mounted on a metallic frame.
R O B I C .
R O B I C .
14
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2044331 CA2044331A1 (en) | 1991-06-11 | 1991-06-11 | Modular steel door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2044331 CA2044331A1 (en) | 1991-06-11 | 1991-06-11 | Modular steel door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2044331A1 true CA2044331A1 (en) | 1992-12-12 |
Family
ID=4147787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2044331 Abandoned CA2044331A1 (en) | 1991-06-11 | 1991-06-11 | Modular steel door |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2044331A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11371280B2 (en) | 2018-04-27 | 2022-06-28 | Pella Corporation | Modular frame design |
| US11584041B2 (en) | 2018-04-20 | 2023-02-21 | Pella Corporation | Reinforced pultrusion member and method of making |
-
1991
- 1991-06-11 CA CA 2044331 patent/CA2044331A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11584041B2 (en) | 2018-04-20 | 2023-02-21 | Pella Corporation | Reinforced pultrusion member and method of making |
| US11371280B2 (en) | 2018-04-27 | 2022-06-28 | Pella Corporation | Modular frame design |
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| Date | Code | Title | Description |
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| FZDE | Dead |