The disclosure of U.S. Provisional Patent Application No. 63/145,682, which was filed on Feb. 4, 2021, is hereby incorporated by reference for all purposes as if presented herein in its entirety.
The present disclosure relates to methods and systems for connecting balusters to a handrail. More specifically, the present disclosure is directed to a connector for attaching a baluster to a handrail and a method of attaching a baluster to a handrail with a connector for handrails in level and rake configurations.
In some examples, handrails and balusters can help provide a physical barrier to the passage of children and pets under the handrails of open stairways and balconies and thus prevent dangerous falls. In addition to their utilitarian value, they also contribute to the aesthetics of the stairway or balcony. Handrail and baluster assemblies can be offered in a variety of decorative designs and can be manufactured from wood, solid metal bars, hollow metal tubes, and other suitable materials.
In one example, a staircase can be installed by installing treads and risers followed by newel posts and/or other supports as needed. Balusters can be installed on the treads such as by drilling bores or holes in the treads and the balusters can be at least partially received in the holes so that the balusters extend upwardly from the holes in the treads. Alternatively, or in addition, balusters can be installed in holes formed along a landing, a balcony, etc. In some examples, bores can be drilled in an underside of a handrail, which can be positioned over the top ends of the balusters so that the tops of the balusters are at least partially received in the bores in the handrail. In some examples, the ends of the handrail can be fastened to the posts and/or walls and/or other suitable support structures with adhesive/glue, fasteners (e.g., screws, nails, nuts and bolts, etc.) and/or other suitable features. As a result, the balusters can be held at their top and bottom ends, which can help prevent removal of the balusters without damaging them.
Subsequently, the balusters can be aligned (e.g., by rotating the balusters in the holes in the treads and handrail) and locked into place by securing the tops and/or bases of the balusters with adhesive/glue, fasteners (e.g., screws, nails, fine wire nails, etc.) and/or other suitable features where applicable.
In some examples, balusters (e.g., hollow or solid metal balusters and/or other suitable balusters) can be installed by drilling holes (e.g. ½-inch, ⅝-inch, etc.) into the top of the treads, so that the holes can receive an end (e.g., a pin end) of the metal baluster. For example, the pin end of the baluster can be cylindrical in shape with a diameter of ½-inch or ⅝-inch and a length of ¾-inch. The opposing end of the example metal baluster is not fitted with a pin and is not secured with nails. In some examples, a hole (e.g., having a diameter of ¾-inch or 15/16-inch and a depth of about 1-inch) is drilled into the lower face of the stair rail. The bases of the metal balusters are inserted into the holes in the tread or floor and can rest upright. The rail is then slowly lowered into place and the individual metal balusters are manually brought into a vertical position and into alignment with the hole in the underside of the rail. The handrail is then secured at its ends into the walls and/or newels and/or other supports. At this point the metal balusters are only partially secured in place. To further secure them, each metal baluster can be rotated into alignment and moved into its correct position and a spring clamp or wedge is used to hold it in place. Then a commercial adhesive or epoxy is prepared and injected into the hole in the handrail. The metal baluster is then held in place until the adhesive or epoxy has dried or cured. Decorative covers (e.g., shoes) can be set in place to cover and hide the base attachment point and/or the top attachment point of the metal baluster. These decorative shoes can be made from cast metal, can be painted or powder coated to match the baluster's finish, can have an open base that is either flat or angled, and can have a top that narrows to an opening that matches the size and shape of the baluster shafts. The shoes can be fitted with mechanical fasteners, such as set screws, to secure them in place over the shafts of the balusters. These shoes are commercially available from sellers of stair parts such as Home Depot, Lowes and others.
Such example handrail installation processes include onsite drilling and measuring, wherein inaccuracies in drilling of the underside of the handrail can result in the metal balusters being irregularly spaced and/or nonparallel, such as if the holes in the underside of the handrail are not aligned with the holes in the treads or flooring, for example. For a handrail extending along the rake of the stair, holes are drilled at an angle in the bottom of the handrail after performing additional calculations and measuring for appropriate hole placement along handrail. Shortcomings of such handrail installation processes include that inaccuracies in the measurements and drilling can cause the balusters to be installed out of plum and can cause a loss of integrity to the balustrade.
Another disadvantage includes that the example metal balusters have a pin end and a square end, wherein the pin end nests into a hole in the tread while an oversized hole (e.g., having a diameter of ¾-inch to 15/16-inch) is drilled into the underside of the handrail for the square end. Additionally, this installation process includes the use of adhesives/epoxy and additional clamps and/or wedges and leaves unsightly features that are covered by decorative shoes. However, such decorative shoes may not be a desired aesthetic and may also damage metal balusters during installation. Further, matching the decorative shoes to the finish of the metal balusters can be difficult, causing some options to not be available or at an added cost to the system. In addition, the oversized hole in the underside of the handrail can lead to an increased amount of adhesive/epoxy used to fill the void and could cause improper bonding and the potential for loose balusters if not cured fully. Also, the oversized hole may not constrain a baluster well enough to allow for installation without the use of additional clamps or wedges when positioning the baluster in the top rail.
In general, one aspect of the disclosure is directed to a baluster installation system. The system can comprise a connector comprising a first section for being at least partially received in an end of a baluster and a second end for being at least partially received in a route in a handrail. The first section can comprise a first shaft and a plurality of first ribs extending from the first shaft, and the second section can include a second shaft and a plurality of second ribs extending from the second shaft. The plurality of first ribs can be adapted to engage a portion of the baluster when the first section is at least partially received in the end of the baluster, and the plurality of second ribs can be adapted to engage sidewalls of the route when the second section is at least partially received in the route.
In another aspect, the disclosure is generally directed to a method of attaching a baluster to a handrail. The method can comprise obtaining a connector comprising a first section with a first shaft and a plurality of first ribs extending from the first shaft and a second section with a second shaft and a plurality of second ribs extending from the second shaft. The method further can comprise engaging the first section of the connector with an end of a baluster and engaging the second section of the connector with a route formed in a handrail.
In another aspect, the disclosure is generally directed to a handrail and baluster assembly. The assembly can comprise a handrail defining a route, a baluster having an end extending at least partially around an interior of the baluster, and a connector. The connector can comprise a first section at least partially received in the interior at the end of the baluster and a second section at least partially received in the route in the handrail. The first section can comprise a first shaft and a plurality of first ribs extending from the first shaft, and the plurality of first ribs can engage a portion of the baluster in the interior of the baluster for at least partially retaining the first section in the interior of the end of the baluster. The second section can comprise a second shaft and a plurality of second ribs extending from the second shaft, and the plurality of second ribs can engage sidewalls of the route for at least partially retaining the second section in the route.
Additional aspects, features, and advantages of the present invention will become apparent from the following description and accompanying figures.
Those skilled in the art will appreciate the above stated advantages and other advantages and benefits of various additional embodiments reading the following detailed description of the embodiments with reference to the below-listed drawing figures. It is within the scope of the present disclosure that the above-discussed aspects be provided both individually and in various combinations.
According to common practice, the various features of the drawings discussed below are not necessarily drawn to scale. Dimensions of various features and elements in the drawings may be expanded or reduced to more clearly illustrate the embodiments of the disclosure.
Corresponding parts are designated by corresponding reference numbers throughout the drawings.
The present disclosure generally relates to a system and method of connecting balusters to a handrail. In embodiments, the disclosure includes a rail connector that connects (e.g., universally connects) a baluster (e.g., a hollow metal baluster or another suitable baluster) and a rail (e.g., a handrail for a stairway). In some embodiments, the rail connector can facilitate the installation of an angled rail system, such as those associated with stairs or ramps, a rail system having no angle, such as horizontal rails along balconies, stair landings, etc., and/or other suitable rail assemblies. The rail connector can be adaptable to be used with numerous different rail systems and angles.
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In the illustrated embodiment, an oblique face 3e (e.g., an angled notch) can extend from the front face 33 to the top face 37 along the same or a similar angle as the oblique ribs 3b. For example, the angle of the oblique ribs 3b and the oblique face 3e can be approximately the average rake angle for a rail standard along a stair (e.g., an approximately 7⅜ slope). Alternatively, the oblique ribs 3b and/or the oblique face 3e can extend at any suitable angle for engaging a rail oriented at any suitable angle and/or the oblique ribs 3b and the oblique face 3e can extend at different angles. In the illustrated embodiment, the oblique ribs 3b can be angled to engage the sidewalls 23 of the route 21 so that the oblique ribs 3b are compressed and/or deformed when inserting the upper section 3 of the connector 1 into the route 21 (e.g., while rotating the baluster 4 into position along a stair) so that the ribs 3b resist motion away from the rail 5, at least partially locking the baluster 4 into position. As shown in
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In one exemplary embodiment, the balusters 4 and the rail 5 can be assembled with the connectors 1 along the rake of a stair by plowing the underside of the top rail 5 to form the plow 21 (e.g., being ½-inch wide by ¾-inch deep or any suitable dimensions); setting appropriate number of newels or other supports (not shown) along the stairway; spacing and drilling the base holes 43 (e.g., having a diameter of 7/16-inch or any suitable diameter) evenly along each tread 6a (e.g., 3 holes per tread); setting the top rail 5 in between newels or other supports; selecting pre-cut balusters 4 for each position along the rake of the stair; inserting the lower section 2 of the connector 1 into the square top end 4b of the respective balusters 4; inserting the rounded end 4a of each baluster 4 into the respective base holes 43 of the treads; pivoting the balusters 4 into the plow 21 of the rail 5 until balusters 4 are plumb; and inserting the fillet 7 in between the balusters 4 with a slight reveal along the bottom of the rail 5.
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In one exemplary embodiment, the balusters 4 and the rail 5 can be assembled with the connectors 1 in a level orientation of the rail 5 by plowing the underside of the top rail 5 to form the plow 21 (e.g., being ½-inch wide by ¾-inch deep or any suitable dimensions); setting appropriate number of newels or other supports (not shown) along the level rail 5; spacing and drilling the base holes 43 (e.g., having a diameter of 7/16-inch or any suitable diameter) evenly along the floor 6b (e.g., with a 4⅜″ center to center spacing); selecting the precut balusters 4 and inserting the pin end 4a of each baluster 4 into the respective base holes 43 in the floor 6b; inserting the lower sections 2 of the connectors 1 in the respective top ends 4b of the respective balusters 4; positioning the rail 5 on top of the balusters 4 with the upper sections 3 of the connectors 1 at least partially received in the route 21; securing the rail 5 to the newels or other supports at a desired rail height; and inserting the fillets 7 between the balusters 4 with a slight reveal along the bottom of the rail 5.
The handrail and baluster assembly 101 could be otherwise formed from the connector 1, the baluster 4, and the rail 5 without departing from the disclosure.
In embodiments, the connector 1 of the present disclosure can facilitate easier and faster installation of a balustrade. In some embodiments, the assembly can be entirely mechanical and the connector 1 can reduce or eliminate the need for adhesive/glue or epoxy, which can be messy. Also, since at least the connector 1 is concealed in the route 21 of the handrail 5 and by the fillets 7, decorative shoes can be omitted if desired. In some embodiments, the rail 5 can be pre-prepared prior to onsite installation so that onsite measuring and drilling of the rail 5 can be avoided, while also allowing the opportunity to pre-finish the handrail 5 prior to installation.
In some embodiments, the route 21 in the rail 5 can allow the positioning of the balusters 4 at any point along the rail 5 so that the balusters 4 can be placed as needed without onsite drilling and measuring or with reduced onsite drilling and measuring. In addition, the route 21 of the rail 5 can provide two fixed faces 23 to which the connector 1 can wedge into. Further, the rail fillets 7 can be used to fill in between each baluster 4 once the balusters 4 are secured to the rail 5 (e.g., by the oblique ribs 3b and/or the fastener 8). In some embodiments, the rail fillets 7 can add a secondary constraint to the balusters 4, retaining the balusters 4 in the correct position while also filling the additional void in the bottom of the rail 5.
Any of the features of the various embodiments of the disclosure can be combined with, replaced by, or otherwise configured with other features of other embodiments of the disclosure without departing from the scope of this disclosure.
The foregoing description of the disclosure illustrates and describes various embodiments. As various changes could be made in the above construction without departing from the scope of the disclosure, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. Furthermore, the scope of the present disclosure covers various modifications, combinations, alterations, etc., of the above-described embodiments. Additionally, the disclosure shows and describes only selected embodiments, but various other combinations, modifications, and environments are within the scope of the disclosure as expressed herein, commensurate with the above teachings, and/or within the skill or knowledge of the relevant art. Furthermore, certain features and characteristics of each embodiment may be selectively interchanged and applied to other illustrated and non-illustrated embodiments of the disclosure.
This application claims the benefit of U.S. Provisional Patent Application No. 63/145,682 filed on Feb. 4, 2021.
Number | Date | Country | |
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63145682 | Feb 2021 | US |