CA2445172C - Stair bracket system and method - Google Patents
Stair bracket system and method Download PDFInfo
- Publication number
- CA2445172C CA2445172C CA 2445172 CA2445172A CA2445172C CA 2445172 C CA2445172 C CA 2445172C CA 2445172 CA2445172 CA 2445172 CA 2445172 A CA2445172 A CA 2445172A CA 2445172 C CA2445172 C CA 2445172C
- Authority
- CA
- Canada
- Prior art keywords
- face
- stringer
- planar segment
- tread
- bracket
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 3
- 238000005304 joining Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000002991 molded plastic Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 3
- 230000001934 delay Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/022—Stairways; Layouts thereof characterised by the supporting structure
- E04F11/025—Stairways having stringers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
- E04F11/104—Treads
- E04F11/1043—Treads with an upper layer of organic plastics with or without reinforcements or filling materials
Abstract
A stair bracket system and method is provided for constructing the framework of a staircase or terrace seating, having a plurality of modular brackets which are assembled in combination with wooden or steel or composite lumber structural members to result in the risers. Each of the brackets of the present invention has a bottom edge, a front and lower section, a back end edge, a top section and bracing members, so that a staircase or terrace seating can be constructed by forming at least a pair of side frames.
Description
SN 2,445,172 STAIR BRACKET SYSTEM AND METHOD
Field of the Invention The invention relates generally to the assembly of stair risers for the construction of a flight of stairs, and, more particularly, to a bracket suitable for modular construction of risers.
Background of the Invention Typically, the construction of a flight of stairs has throughout the years involved cutting a pair of stair risers out of elongated pieces of lumber with right angular notchesbeing cut into each piece at appropriate spacings before positioning and nailing down stair treads.
The building of staircases is therefore time consuming and the cutting of lumber requires great skill, care and craftsmanship. This cutting is often on a custom basis and is usually done offsite. This is all time consuming and is often the cause of delays in the course of construction projects.
Furthermore, stair risers constructed out of wood have been known to deteriorate, especially when used outdoors.
In light of the above, there is a need for a system and method for constructing risers easily on site avoiding the need for custom ordering offsite. There exists also a need for making the construction of staircases, or any similar type of construction, easy and convenient for the everyday handyman.
SN 2,445,172 Summary of the Invention A stairway according to the present invention comprises a pair of stringers mounted in inclined spaced-apart parallel relationship with each stringer having a top surface and a side surface; and at least one stair assembly disposed in spanning relationship across the stringers. Each stair assembly comprises a pair of brackets and a tread, with the tread having one of the brackets affixed to each end thereof and with each bracket affixed along a length of each of the stringers. Each bracket comprises a stringer face, a tread face, and a forward face. The stringer face includes a planar segment with a central reinforcing rib extending along the planar segment on a surface thereof facing the tread face. The tread face includes a planar segment adapted to support a stair tread and including a central reinforcing rib on a surface of the planar segment facing the stringer face. The front face includes an outer planar segment and a first inner planar segment joined by a central web therebetween whereby the front face forms an `I' beam type reinforcement joining the stringer face and the tread face.
In an aspect of the invention, the front face on an inner surface includes a central reinforcing rib extending between the stringer face and the tread face with the reinforcing rib connected to the central reinforcing ribs of the stringer face and the tread face.
In a further aspect of the invention the front face defines an arcuate curve extending between the stringer face and the tread face.
According to an aspect of the invention, the front face includes a second inner planar segment with the first inner planar segment positioned between the outer planar segment and the second inner planar segment;
the first inner planar segment and the second inner planar segment are connected with a web to form an 'I' beam section.
Field of the Invention The invention relates generally to the assembly of stair risers for the construction of a flight of stairs, and, more particularly, to a bracket suitable for modular construction of risers.
Background of the Invention Typically, the construction of a flight of stairs has throughout the years involved cutting a pair of stair risers out of elongated pieces of lumber with right angular notchesbeing cut into each piece at appropriate spacings before positioning and nailing down stair treads.
The building of staircases is therefore time consuming and the cutting of lumber requires great skill, care and craftsmanship. This cutting is often on a custom basis and is usually done offsite. This is all time consuming and is often the cause of delays in the course of construction projects.
Furthermore, stair risers constructed out of wood have been known to deteriorate, especially when used outdoors.
In light of the above, there is a need for a system and method for constructing risers easily on site avoiding the need for custom ordering offsite. There exists also a need for making the construction of staircases, or any similar type of construction, easy and convenient for the everyday handyman.
SN 2,445,172 Summary of the Invention A stairway according to the present invention comprises a pair of stringers mounted in inclined spaced-apart parallel relationship with each stringer having a top surface and a side surface; and at least one stair assembly disposed in spanning relationship across the stringers. Each stair assembly comprises a pair of brackets and a tread, with the tread having one of the brackets affixed to each end thereof and with each bracket affixed along a length of each of the stringers. Each bracket comprises a stringer face, a tread face, and a forward face. The stringer face includes a planar segment with a central reinforcing rib extending along the planar segment on a surface thereof facing the tread face. The tread face includes a planar segment adapted to support a stair tread and including a central reinforcing rib on a surface of the planar segment facing the stringer face. The front face includes an outer planar segment and a first inner planar segment joined by a central web therebetween whereby the front face forms an `I' beam type reinforcement joining the stringer face and the tread face.
In an aspect of the invention, the front face on an inner surface includes a central reinforcing rib extending between the stringer face and the tread face with the reinforcing rib connected to the central reinforcing ribs of the stringer face and the tread face.
In a further aspect of the invention the front face defines an arcuate curve extending between the stringer face and the tread face.
According to an aspect of the invention, the front face includes a second inner planar segment with the first inner planar segment positioned between the outer planar segment and the second inner planar segment;
the first inner planar segment and the second inner planar segment are connected with a web to form an 'I' beam section.
SN 2,445,172 According to a different aspect of the invention each bracket has an open central port defined by inner portions of the stringer face, the tread face and the front face.
In a different aspect of the invention each bracket includes on the stringer face at least one downwardly extending flange abutting a side surface of the stringer.
In a further aspect of the invention each bracket includes at least two downwardly extending flanges abutting a side surface of the stringer and each flange includes a securing port used to fasten the bracket to the stringer.
According to an aspect of the invention, the downwardly extending flange includes a port for passage therethrough of a fastener affixing the bracket to the stringer.
Brief Description of the Invention Figure 1 is a perspective view of the bracket of the present invention;
Figure 2 is a perspective view of a flight of stairs, constructed using the bracket of Figure 1; and Figure 3 is a side elevational view of the bracket and the structural member to be connected thereto.
Detailed Description of the Invention Referring first to Figure 1, a bracket 10 of the present invention to be used in the construction of a riser is illustrated which is comprised of at least one bottom edge 12, a front section 14, a lower section 13, at least one back end edge 16, a top section 18 and at least one bracing member 20 wherein said lower section 13, front section 14 and top section 18 SN-2,445,172 enclose an open port 40. As further illustrated in Figure 1, the top section 18 is comprised of apertures 19 for the secure positioning and attachment of treads therein. Bracing member 20 is also comprised of apertures 21 for secure positioning and attachment to a structural member 22 in the form of a stringer to form risers which may be used for staircases or terrace seating, for instance. It is understood that the bracket 10 of the present invention may also be used for other similar purposes calling for the presence of at least one riser member. Typically at least two stringers are used as structural supports of the stair assembly.
The bracing member 20 is adaptedly shaped and angled for flush positioning to the structural member forming the basis of the staircase being constructed, for instance.
Preferably the design of the bracket 10 will be such that it is suitable for manufacture by simple molding techniques in order to achieve maximum potential strength and rigidity, using long lasting non-rotting materials. In a preferred case, the bracket 10 will be molded from reinforced plastics materials.
Referring to Figure 2, there is illustrated an exemplary flight of stairs built using a plurality of brackets 10. The system and method of the present invention allows for the construction of a riser framework which is comprised of a plurality of modular brackets 10 securely positioned at proper intervals and attached to structural members 22 through apertures 21 of the bracing members 20. As illustrated, the bracket 10 is comprised of two bracing members 20 having two corresponding apertures 21 for straddling the structural member 22 up to and abutting lower section 13 for easy positioning and SN 2,445,172 securing to said structural member 22. It is understood that the number of bracing members 20 can be varied and that in some instances it might even be possible to use only one or even up to four bracing members 20 to be positioned on opposite sides of the bracket 10 in that case.
Once the brackets 10 have been secured to the structural members 22 a series of risers will result therefrom. The riser framework is then ready for positioning and for receiving the treads 30.
As illustrated in Figure 3, once the riser framework is in place the treads 30 are securely positioned and attached to top section 18 of the bracket through apertures 19. Any suitable fastening means may be used to secure the treads 30 but typically these may be screws to be inserted upwardly into the underside of said treads 30.
As shown in figure 1, the bracket 10 includes a large open central port 40 located between the front section 14, the lower section 13 and the top section 18. The front section 14 defines a front face of the bracket and includes an outer, planar segment 42, a first inner planar segment 44 and a second inner, planar segment 46. Central connecting webs 48 and 50 interconnect these planar segments. The front section 14 of the bracket as shown in figure 3 includes a reinforcing rib 52 which connects with a reinforcing rib 54 of the tread face of the bracket and a reinforcing rib 56 of the stringer face of the bracket. These reinforcing ribs provide additional rigidity to the planar segments of the respective components.
The outer, planar segment and the first inner, planar segment are connected by the web 48 and form an I beam type structure. The second inner, planar segment 46 with the web connection 50 and the first inner, planar segment form a second I beam type section. This provides significant reinforcing at the front edge of the bracket. The bracket preferably includes an arcuate front face as shown in figures 1 and 3.
In a different aspect of the invention each bracket includes on the stringer face at least one downwardly extending flange abutting a side surface of the stringer.
In a further aspect of the invention each bracket includes at least two downwardly extending flanges abutting a side surface of the stringer and each flange includes a securing port used to fasten the bracket to the stringer.
According to an aspect of the invention, the downwardly extending flange includes a port for passage therethrough of a fastener affixing the bracket to the stringer.
Brief Description of the Invention Figure 1 is a perspective view of the bracket of the present invention;
Figure 2 is a perspective view of a flight of stairs, constructed using the bracket of Figure 1; and Figure 3 is a side elevational view of the bracket and the structural member to be connected thereto.
Detailed Description of the Invention Referring first to Figure 1, a bracket 10 of the present invention to be used in the construction of a riser is illustrated which is comprised of at least one bottom edge 12, a front section 14, a lower section 13, at least one back end edge 16, a top section 18 and at least one bracing member 20 wherein said lower section 13, front section 14 and top section 18 SN-2,445,172 enclose an open port 40. As further illustrated in Figure 1, the top section 18 is comprised of apertures 19 for the secure positioning and attachment of treads therein. Bracing member 20 is also comprised of apertures 21 for secure positioning and attachment to a structural member 22 in the form of a stringer to form risers which may be used for staircases or terrace seating, for instance. It is understood that the bracket 10 of the present invention may also be used for other similar purposes calling for the presence of at least one riser member. Typically at least two stringers are used as structural supports of the stair assembly.
The bracing member 20 is adaptedly shaped and angled for flush positioning to the structural member forming the basis of the staircase being constructed, for instance.
Preferably the design of the bracket 10 will be such that it is suitable for manufacture by simple molding techniques in order to achieve maximum potential strength and rigidity, using long lasting non-rotting materials. In a preferred case, the bracket 10 will be molded from reinforced plastics materials.
Referring to Figure 2, there is illustrated an exemplary flight of stairs built using a plurality of brackets 10. The system and method of the present invention allows for the construction of a riser framework which is comprised of a plurality of modular brackets 10 securely positioned at proper intervals and attached to structural members 22 through apertures 21 of the bracing members 20. As illustrated, the bracket 10 is comprised of two bracing members 20 having two corresponding apertures 21 for straddling the structural member 22 up to and abutting lower section 13 for easy positioning and SN 2,445,172 securing to said structural member 22. It is understood that the number of bracing members 20 can be varied and that in some instances it might even be possible to use only one or even up to four bracing members 20 to be positioned on opposite sides of the bracket 10 in that case.
Once the brackets 10 have been secured to the structural members 22 a series of risers will result therefrom. The riser framework is then ready for positioning and for receiving the treads 30.
As illustrated in Figure 3, once the riser framework is in place the treads 30 are securely positioned and attached to top section 18 of the bracket through apertures 19. Any suitable fastening means may be used to secure the treads 30 but typically these may be screws to be inserted upwardly into the underside of said treads 30.
As shown in figure 1, the bracket 10 includes a large open central port 40 located between the front section 14, the lower section 13 and the top section 18. The front section 14 defines a front face of the bracket and includes an outer, planar segment 42, a first inner planar segment 44 and a second inner, planar segment 46. Central connecting webs 48 and 50 interconnect these planar segments. The front section 14 of the bracket as shown in figure 3 includes a reinforcing rib 52 which connects with a reinforcing rib 54 of the tread face of the bracket and a reinforcing rib 56 of the stringer face of the bracket. These reinforcing ribs provide additional rigidity to the planar segments of the respective components.
The outer, planar segment and the first inner, planar segment are connected by the web 48 and form an I beam type structure. The second inner, planar segment 46 with the web connection 50 and the first inner, planar segment form a second I beam type section. This provides significant reinforcing at the front edge of the bracket. The bracket preferably includes an arcuate front face as shown in figures 1 and 3.
SN 2,445,172 Other embodiments and uses of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The specification and examples should be considered exemplary only and do not limit the intended scope of the invention.
Claims (9)
1. A stairway comprising a pair of stringers mounted in inclined spaced-apart parallel relationship, each stringer having a top surface and a side surface; and at least one stair assembly disposed in spanning relationship across the stringers, each stair assembly comprising a pair of brackets and a tread, with the tread having one of said brackets affixed to each end thereof and with each bracket affixed along a length of each f the stringers; and wherein each bracket comprises a stringer face, a tread face, and a forward face; said stringer face including a planar segment with a central reinforcing rib extending along said planar segment on a surface thereof facing said tread face, said tread face including a planar segment adapted to support a stair tread and including a central reinforcing rib on a surface of said planar segment facing said stringer face; said front face including an outer planar segment and a first inner planar segment joined by a central web therebetween whereby said front face forms and "I" beam type reinforcement joining said stringer face and said tread face.
2. A stairway as claimed in claim 1 wherein said front face on an inner surface includes a central reinforcing rib extending between said stringer face and said tread face with said reinforcing rib connected to the central reinforcing ribs of said stringer face and said tread face.
3. A stairway as claimed in claim 1 or 2 wherein said front face defines an arcuate curve extending between said stringer face and said tread face.
4. A stairway as claimed in claim 1, 2 or 3 wherein said front face includes a second inner planar segment with said first inner planar segment positioned between said outer planar segment and said second inner planar segment; said first inner planar segment and said second inner planar segment being connected with a web to form an "I" beam section.
5. A stairway as claimed in any one of claims 1 through 4 wherein each bracket has an open central port defined by inner portions of said stringer face, said tread face and said front face.
6. A stairway as claimed in any one of claims 1 through 5 wherein each bracket includes on said stringer face at least one downwardly extending flange abutting a side surface of said stringer.
7. A stairway claimed in any one of claims 1 through 5 wherein each bracket includes at least two downwardly extending flanges abutting a side surface of said stringer and each flange includes a securing port used to fasten the bracket to the stringer.
8. A stairway stringer as claimed in any one of claims 1 through 7 wherein said at least one downwardly extending flange includes a port for passage therethrough of a fastener affixing said bracket to said stringer.
9. A stairway as claimed in any one of claims 1 through 8 wherein each bracket is made of a molded plastic material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2445172 CA2445172C (en) | 2003-10-16 | 2003-10-16 | Stair bracket system and method |
| EP04292395A EP1524383A3 (en) | 2003-10-16 | 2004-10-08 | Stair bracket system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2445172 CA2445172C (en) | 2003-10-16 | 2003-10-16 | Stair bracket system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2445172A1 CA2445172A1 (en) | 2005-04-16 |
| CA2445172C true CA2445172C (en) | 2009-10-06 |
Family
ID=34318794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2445172 Expired - Lifetime CA2445172C (en) | 2003-10-16 | 2003-10-16 | Stair bracket system and method |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1524383A3 (en) |
| CA (1) | CA2445172C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2970017B1 (en) * | 2010-12-29 | 2015-06-05 | Centaure Sas | DEVICE FOR ASSEMBLING A MARKET ON A SUPPORT |
| EP3864233A4 (en) * | 2018-10-08 | 2022-10-05 | Fortress Iron, LP | Stair assembly with rise adjustable step support brackets |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989002506A1 (en) * | 1987-09-15 | 1989-03-23 | Reginald John Watson | Step forming method and means |
| US5293722A (en) * | 1992-07-13 | 1994-03-15 | Reimann Lyall V | Construction unit suitable for making stair stringers |
| US5806254A (en) * | 1996-03-04 | 1998-09-15 | Bennett; Michael Hebden | Modular tread and riser unit |
| US5791101A (en) * | 1996-06-11 | 1998-08-11 | Wallace Stairbridge Inc. | Stair support assembly |
| US6088977A (en) * | 1997-10-31 | 2000-07-18 | Lawrence; Michael J. | Method and apparatus for making stairs |
-
2003
- 2003-10-16 CA CA 2445172 patent/CA2445172C/en not_active Expired - Lifetime
-
2004
- 2004-10-08 EP EP04292395A patent/EP1524383A3/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP1524383A3 (en) | 2007-05-30 |
| EP1524383A2 (en) | 2005-04-20 |
| CA2445172A1 (en) | 2005-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20231016 |