The present invention relates generally to a bracket for use in construction of a balustrade, and a method of stabilizing a balustrade using the bracket.
During home or building construction, a balustrade is usually provided along stair treads, landings, balconies, decks, and the like, and generally includes a railing and vertical newel posts which are secured to the railing and are anchored to flooring structures. Since newel posts are pulled and pushed during use, they can become loose and must be properly installed and secured.
Installation of newel posts is time-consuming and costly because special skills, tools, and additional finishing work are required. Newel posts are typically fastened to a floor by installation in a hole cut through the floor. However, it is often challenging to position and place the newel posts properly, requiring a carpenter to rely upon studs and floor joists.
Use of various fastening systems incorporate plates, braces and screws. These systems offer some improvement in installation time, but are overly complicated and suffer from various other limitations. Externally mounted brackets to anchor the posts are available, but provide minimal stability and are surface-mounted, rendering them visually unappealing. Accordingly, there is a need in the art for a way of installing newel posts which mitigates these problems.
The present invention relates to a bracket for use in construction of a balustrade, and a method of stabilizing a balustrade using the bracket.
In one aspect, the invention comprises a bracket for constructing a balustrade comprising:
In one embodiment, the receiving member and pivoting member are substantially aligned to define an opening extending therethrough for receiving the post. In one embodiment, the receiving member comprises a front wall, a rear wall, a first side wall, a second side wall, an open first end, and an open second end. In one embodiment, the front wall is sized lower vertically than the rear wall, the first side wall, and the second side wall. In one embodiment, the first side wall and the second side wall are sized the same height vertically as the rear wall, and have top cut-away corners complementary to the vertical height of the front wall. In one embodiment, one or more of the front wall, rear wall, first side wall, and second side wall define one or more apertures to allow attachment means to extend therethrough to secure the post to the receiving member.
In one embodiment, the pivoting member comprises a pair of arms, a first mounting plate, and a second mounting plate, wherein the arms, the first mounting plate, and the second mounting plate define a gap sized to receive and accommodate the receiving member. In one embodiment, the gap extends past the front wall and the rear wall.
In one embodiment, the arms are oriented opposed and parallel to each other, are connected at their ends to the first and second mounting plates, and have a bottom cut-away corner at each end. In one embodiment, the arms protrude past the edges of the first and second side walls.
In one embodiment, the arms define opposed throughholes which align with corresponding bores of the first and second side walls to allow attachment means to extend therethrough to pivotally mount the pivoting member to the receiving member. In one embodiment, the throughholes and the bores are positioned along top edges of the first and second side walls. In one embodiment, the first and second side walls define opposed curved slots positioned below the bores. In one embodiment, the arms define opposed openings positioned at the bottom edge of the arms. In one embodiment, a stopper projects outwardly from either the first side wall, the second side wall, or the rear wall.
In one embodiment, the first and second mounting plates define one or more apertures, one or more elongate slots, or both to allow attachment means to extend therethrough to secure the first and second mounting plates onto the top plate. In one embodiment, the front wall defines one or more slots corresponding to the one or more elongate slots of the first mounting plate.
In one embodiment, the first mounting plate defines a window, and the front wall defines a window corresponding to the first mounting plate window, the windows being sized to receive a leg bolt therethrough.
In one embodiment, the pivoting member is pivotable between an angle of about 45° to about 90° relative to the receiving member.
In another aspect, the invention comprises a method of stabilizing a balustrade comprising the steps of:
In one embodiment, the method further comprises forming notches on the top plate, the notches being complementary to first and second mounting plates of the pivoting member, and fastening the first and second mounting plates to the notches.
In one embodiment, the method further comprises forming angled edges within the top plate, the edges being complementary to cut-away corners of arms of the pivoting member.
In one embodiment, the method further comprises drilling a leg bolt through the top plate to extend through a mounting plate window, the top plate, a front wall window, and the post.
In one embodiment, the pivoting member is pivoted between an angle of about 45° to about 90° relative to the receiving member.
Additional aspects and advantages of the present invention will be apparent in view of the description, which follows. It should be understood, however, that the detailed description and the specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
The invention will now be described by way of an exemplary embodiment with reference to the accompanying simplified, diagrammatic, not-to-scale drawings. In the drawings:
Before the present invention is described in further detail, it is to be understood that the invention is not limited to the particular embodiments described, as such may, of course, vary. It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting, since the scope of the present invention will be limited only by the appended claims.
Where a range of values is provided, it is understood that each intervening value, to the tenth of the unit of the lower limit unless the context clearly dictates otherwise, between the upper and lower limit of that range and any other stated or intervening value in that stated range is encompassed within the invention. The upper and lower limits of these smaller ranges may independently be included in the smaller ranges is also encompassed within the invention, subject to any specifically excluded limit in the stated range. Where the stated range includes one or both of the limits, ranges excluding either or both of those included limits are also included in the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Although any methods and materials similar or equivalent to those described herein can also be used in the practice or testing of the present invention, a limited number of the exemplary methods and materials are described herein.
It must be noted that as used herein and in the appended claims, the singular forms “a”, “an”, and “the” include plural referents unless the context clearly dictates otherwise.
The present invention relates to a bracket for use in construction of a balustrade. The invention also relates to a method of stabilizing a balustrade using the bracket.
As used herein, the term “balustrade” means a rail system including balusters, as featured in staircases, porches, and the like. A rail system is typically a vertical support or barrier erected along exposed edges of floor openings, wall openings, ramps, platforms, and runways to prevent falls of individuals, or within walls.
As used herein, the term “baluster” means an upright vertical bar used to support an upper railing. As used herein, the term “upper railing” means a single bar fixed on top of balusters or supports for various purposes such as, for example, a gripping surface or handhold on a stairway or ramp.
As used herein, the term “post” or “newel post” means a vertical post used to start the balustrade, and used at points of vertical and directional transition.
As used herein, the term “horizontal” means the orientation of a plane or line that is substantially parallel to the plane of the horizon. The term “vertical” means the orientation of a plane or line that is substantially at a right angle to the horizontal plane.
Newel posts (5) are typically anchored only at their lower ends, but must withstand tremendous lateral forces applied upon the upper railing (2) such that they can become loose and unstable over time. The present invention (diagrammatically shown in phantom at 12 in
In one embodiment, the invention comprises a bracket for constructing a balustrade comprising: a receiving member configured to receive and secure a post therein; and a pivoting member pivotally mounted to the receiving member and configured to be attached to a top plate of a stairway wall to orient the post within the top plate at a desired position, angle, or both.
In one embodiment, the invention comprises a method of stabilizing a balustrade comprising the steps of forming a gap within the top plate for installing the bracket; sliding the bracket into position within the gap; fastening the bracket onto the top plate; preparing the post to fit into the bracket; inserting and attaching the prepared post within the bracket at a desired position, angle, or both.
In one embodiment, the front wall (24) is sized to be lower vertically than the rear wall (26), first side wall (28), and second side wall (30), as shown for example in
The rear wall (26) is connected to the side walls (28, 30) (
The first and second side walls (28, 30) are configured to be substantially identical to each other, as best shown when the bracket (12) is viewed from the side (
One or more of the front wall (24), rear wall (26), and side walls (28, 30) may define one or more apertures (38) through which attachment means may be inserted to secure the post (5) to the receiving member (16) (
The shape of the receiving member (16) is not limited to that of the present example, but may variously be changed, for example, into a square, parallelogram, or the like. In one embodiment, the receiving member (16) of the bracket (12) may be substantially rectangular-shaped comprising planar front, rear and side walls (24, 26, 28, 30).
The pivoting member (18) comprises a pair of arms (40), a first mounting plate (42), a second mounting plate (44), and a gap (46) (
In one embodiment, each arm (40) is substantially rectangular-shaped with a bottom cut-away corner (50) at each end (48) (
The arm (40) protrudes past the edges of the side wall (28, 30) to allow the pivoting member (18) to be mounted over the receiving member (16). In one embodiment, the arm (40) has a length greater than the width of the side wall (28, 30) (
The first and second side walls (28, 30) define opposed bores (52) positioned at the top of the side walls (28, 30) and adjacent to the top cut-away corners (36) (
In addition, the first and second side walls (28, 30) define opposed curved slots (56) positioned below the bores (52) (
A stopper or protuberance (60) is disposed on the outer surface of one of the side walls (28, 30) or defined by the rear will (26), and projects outwardly with respect to the side wall (28, 30) or rear wall (26) (
The first and second mounting plates (42, 44) are substantially rectangular-shaped. However, the shape of the first and second mounting plates (42, 44) is not limited to that of the present example, but may variously be changed, for example, into a square or the like.
In one embodiment, the first and second mounting plates (42, 44) define one or more apertures (62) and/or one or more elongate slots (64) through which attachment means may be inserted to secure the bracket (12) onto the top plate (8) (
In one embodiment, the first mounting plate (42) is configured differently from the second mounting plate (44). In one embodiment, the first mounting plate (42) defines a pair of apertures (62), a pair of elongate slots (64), and a window (66). The apertures (62) and slots (64) are positioned at the corners of the first mounting plate (42), with the slots (64) being positioned at the edge of the first mounting plate (42) adjacent to the arms (40). The apertures (62) receive attachment means to secure the bracket (12) onto the top plate (8). The front wall (24) defines corresponding front wall slots (68) (
The window (66) is positioned near or at the center of the first mounting plate (42). The front wall (24) defines a corresponding window (70) (
In one embodiment, the second mounting plate (44) defines an aperture (62) positioned centrally at the edge of the plate (44) adjacent to the arms (40), and elongate slots (64) positioned at the corners of the plate (44). In one embodiment, the second mounting plate (44) defines a pair of apertures (62) positioned at the corners of the second mounting plate (44) (
The pivoting member (18) may be pivoted relative to the receiving member (16), but any pivotal adjustment possible in the pivoting member (18) is limited by the receiving member (16) and stopper (60). The inclination or pitch angle of the pivoting member (18) is adjustable within the physical constraints of the receiving member (16), but no side-to-side rotation, commonly referred to as the yaw angle, is possible. In one embodiment, the inclination ranges from between about 45° to about 90°. The pivoting member (18) is pivotally mounted to the receiving member (16) to enable two positions of movement, namely a resting position and an actuating position.
In the resting position, the pivoting member (18) is resting substantially “flat” or horizontal relative to the receiving member (16). In one embodiment, the stopper (60) prevents the pivoting member (18) from tilting in the direction of the rear wall (26) such that the pivoting member (18) is positioned at an angle of about 90° relative to the receiving member (16) (
The pivoting member (18) is movable from the resting position wherein the pivoting member (18) is not tilted, to the actuating position wherein the pivoting member (18) is tilted in the direction of the front wall (24) during use (FIGS. 3 and 11-13). The top cut-away corners (36) of the first and second side walls (28, 30), and the lower vertical height of the front wall (24) compared to the rear and side walls (26, 28, 30) thereby allow the pivoting member (18) to rotate easily and freely without protruding corners or walls hindering its movement. As shown in
The dimensions are not essential to the invention and are dictated by the dimensions of the post (5). The dimensions of the bracket (12) may be increased or decreased as may be required to satisfy any particular design objectives; for example, the bracket (12) may be available in a variety of dimensions. In one embodiment, the bracket (12) has a height of about 6 inches, and a width of about eleven inches. In one embodiment, the receiving member (16) has a height of about six inches, and a width of about 3.5 inches. In one embodiment, the pivoting member (18) has a height of about one inch, and a width of about eleven inches.
The bracket (12) can be constructed from any material or combination of materials having suitable properties such as, for example, mechanical strength and ease of welding. Suitable materials include, but are not limited to, aluminum, steel, stainless steel, or other appropriate metals. Aluminum is preferable since it does not rust or corrode, and is softer and cheaper than steel, hence easier and inexpensive for manufacturing the bracket (12) (
The receiving member (16) may be formed as a single, integral unit or “box” combining the front wall (24), rear wall (26), and side walls (28, 30), with the side walls (28, 30) being machined to form the cut-away corners (36). Alternatively, the walls (24, 26, 28, 30) may be formed independently and welded together to form a single, integral unit. In one embodiment, a single piece is bent to form the rear (26) and side walls (28, 30), with the finished front wall (24) (i.e., including any apertures (38, slots (68) and window (70)) then being welded to the side walls (28, 30). To facilitate the bending of the single piece, slots may be cut through the piece to define the rear (26) and side walls (28, 30) and/or to form the stopper (60) in the shape of a tab defined by the rear wall (26) (
The pivoting member (18) may be formed as a single, integral unit combining the arms (40) and mounting plates (42, 44) in a planar form or flat sheet, with the arms (40) then being folded or bent over. A portion (80) of each mounting plate (42, 44) may be folded or bent over by cutting a notch (82) to add strength between the ends (48) of the arms (40) and the mounting plate (42, 44) (
In general, the bracket (12) requires few components, making the bracket (12) amenable to rapid assembly and minimizing expense in manufacturing. Alternatively, the bracket (12) may be formed using waterjet cutting which involves use of a water jet cutter to fabricate the components of the bracket (12).
The installation of the bracket (12) can be performed easily by building contractors, construction companies, and home builders. The bracket (12) enables the positioning and placing of the posts (5), negating the need to rely upon studs and floor joists. The bracket (12) can be used to secure the post (5) in any desired location and/or angle within the wall (7).
In operation, the bracket (12) is installed within a stairway wall (7) formed of a top plate (8), a base plate (9), and sides (72). The top plate (8) typically comprises dimensional lumbar such as, for example, a two-by-four board. The top plate (8) is first prepared by measuring and marking a section to accommodate the bracket (12) where the post (5) is to be positioned (
The bracket (12) is slid into position within the gap (74) (
The post (5) is sized or trimmed to fit within the receiving member (16) of the bracket (12), and is cut to the desired length (
The leg bolt or heavy screw can be used to facilitate anchoring the post (5) at the desired angle, position, or both. A pilot hole for either the leg bolt or the heavy screw is drilled through the window (66) of the first mounting plate (42), the top plate (8), the window (70) of the front wall (24), and the post (5) (
The balustrade (1) is then completed in a manner well known to those skilled in the art (
It should be apparent, however, to those skilled in the art that many more modifications besides those already described are possible without departing from the inventive concepts herein. The inventive subject matter, therefore, is not to be restricted except in the spirit of the disclosure. Moreover, in interpreting the disclosure, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms “comprises” and “comprising” should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced.
All publications mentioned herein are incorporated herein by reference (where permitted) to disclose and describe the methods and/or materials in connection with which the publications are cited. The publications discussed herein are provided solely for their disclosure prior to the filing date of the present application. Nothing herein is to be construed as an admission that the present invention is not entitled to antedate such publication by virtue of prior invention. Further, the dates of publication provided may be different from the actual publication dates, which may need to be independently confirmed.
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Number | Date | Country | Kind |
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2857824 | Jul 2014 | CA | national |