The disclosure relates to hand railings or grab railings and, more particularly, to an adjustable grab railing wherein the angle or height between the railing and the floor can be adjusted to allow a single device to be used in different configurations.
Most building codes require the top of a hand or grab railing to be 34 to 38 inches above the nose of any given stair tread. A grab railing must be installed at the same pitch as the stairs, or the height of the railing will vary along its length.
The disclosure provides adjustable grab railing configurations.
The disclosure provides adjustable grab railing configurations that can be configured in a zero-degree horizontal configuration and also angled configurations from 31 degrees to 43 degrees having a range of 12 degrees in 2 degree increments.
The disclosure provides a first configuration of an adjustable grab railing configuration that is mounted to a vertical mounting structure such as a wall, door jamb, or molding next to the steps with which it is to be used. The mounting surface can be flat or a corner. The grab railing includes mounting brackets, an upper rail, a lower rail connected to the upper rail, and an adjustment rail. The mount ends of the upper rail and adjustment rail are selectively, pivotably mounted to mount tabs that extend from the mounting brackets that are secured to the mounting structure. A first locking fastener such as a lock down bolt selectively secures each connection. The outer end of the adjustment rail telescopes with respect to the lower rail. A second locking fastener selectively locks the position of the adjustment rail with respect to the lower rail allowing the upper and lower railings to be locked at different angles with respect to the steps and the vertical mounting structure.
The second locking fastener is either a single fastener, a pair of spaced fasteners, or a plurality of fasteners depending on the number of preset adjustment angles that are provided. The second locking fastener can be carried by the adjustment rail. In some of the exemplary configurations, the second locking fastener is a quick snap pin or two spaced quick snap pins that are biased toward a locked position such that the locking pin of the quick snap pin automatically moves to a locked position when a pin opening defined by lower rail is aligned with the locking pin. The pin openings are defined along the lower surface of the lower rail and when adjustments are provided in small increments, the pin openings would have to overlap to provide the small adjustment. To provide small adjustment increments, two spaced fasteners are used with the pin openings for the adjustment angles alternating between the fasteners. In other exemplary configurations, the second locking fastener is one, two, or a plurality of fasteners that extend between the lower rail and the adjustment rail to fix their positions with respect to each other. The fastener can be a bolt, a screw, a pin, or a rivet. The fastener can be placed into preformed openings, or a self-tapping fastener can be used. In another exemplary configuration, the fastener that holds the position of the lower rail with respect to the adjustment rail is a pipe clamp that wraps around the outermost rail and clamps it to the inner rail. The outermost rail can define elongated slots to allow it to collapse and clamp against the inner rail. In another exemplary configuration, a pipe clamp is carried on the end of the outermost rail and is rotated to tighten and fix the position of the outermost rail with respect to the inner rail.
The disclosure provides a second configuration of the adjustable grab railing. In this configuration, the grab railing includes mounting brackets, an upper rail, a lower rail connected to the upper rail, and an adjustment rail. The mount end of the upper rail is selectively, pivotably mounted to a mount tab that extends from the mounting bracket that is secured to the mounting structure. A first locking fastener such as a lock down bolt selectively secures the connection. The lower rail has a first portion and a second portion connected by a selectively adjustable joint that allows the angle between the first and second portions to be adjusted and locked. The second portion of the lower rail can be parallel to the upper rail or arranged to be vertical. When arranged to be vertical, the mount end of the adjustment rail is secured to a horizontal surface such as a floor. The outer end of the adjustment rail telescopes with respect to the second portion of the lower rail. A second locking fastener selectively locks the position of the adjustment rail with respect to the second portion of the lower rail allowing the upper and lower railings to be locked at different angles and heights.
The disclosure provides a third configuration of an adjustable grab railing configuration that is mounted to a vertical mounting structure such as a wall, door jamb, or molding next to the steps or other item with which it is to be used. The mounting surface can be flat or a corner. The grab railing includes mounting brackets, an upper rail, a lower rail connected to the upper rail, and an adjustment rail. The mount ends of the upper rail and adjustment rail are selectively, pivotably mounted to mount tabs that extend from the mounting brackets that are secured to the mounting structure. In this configuration, primary and secondary fasteners are used with the mount tabs to lock the relative positions at one of a plurality of predetermined angles. One or more additional optional locking devices can be used between the lower rail and adjustment rail as described in the first configuration.
In each of these configurations, the rails can have a circular, oval, square, or polygonal cross section. In all the configurations, a cover such as a wood or polymer cover can be carried by the upper rail. In all the configurations, the adjustment rail can telescope inside the lower rail or can telescope outside the lower rail.
In all these configurations, the tabs that mount the upper rail and the adjustment rail are either integral with the mounting bracket or they are joined together with fasteners. In all the embodiments, the fasteners can be accessible from the front of the mounting bracket and visible. Alternatively, in all the embodiments, the fasteners are hidden within the footprint of the tab and are accessed from the rear of the mounting bracket when it is removed from its mounting structure.
In all these configurations, the connection between the tab and railing may include interlocking features that increase the strength of the connection. In another option, the surfaces that engage each other are rough to increase friction between the two elements.
The individual features described below may be combined in different combinations than specifically described below to form different configurations of the device of the disclosure. The locations and the numbers of the items can be changed. The preceding non-limiting aspects of the disclosure, as well as others, are more particularly described below. A more complete understanding of the devices, assemblies, and methods can be obtained by reference to the accompanying drawings, which are not intended to indicate relative size and dimensions of the assemblies. In those drawings and the description below, like numeric designations refer to components of like function. Specific terms used in that description are intended to refer only to the particular structure of the embodiments selected for illustration in the drawings, and are not intended to define or limit the scope of the disclosure.
This description of exemplary embodiments is intended to be read in connection with the accompanying drawings, which are to be considered part of the entire written description. The drawing figures are not necessarily to scale and certain features may be shown exaggerated in scale or in somewhat schematic form in the interest of clarity and conciseness. In the description, relative terms such as “horizontal,” “vertical,” “up,” “down,” “top” and “bottom” as well as derivatives thereof (e.g., “horizontally,” “downwardly,” “upwardly,” etc.) should be construed to refer to the orientation as then described or as shown in the drawing figure under discussion. These relative terms are for convenience of description and normally are not intended to require a particular orientation. Terms including “inwardly” versus “outwardly,” “longitudinal” versus “lateral” and the like are to be interpreted relative to one another or relative to an axis of elongation, or an axis or center of rotation, as appropriate. Terms concerning attachments, coupling and the like, such as “joined,” “connected,” and “interconnected,” refer to a relationship wherein structures are secured or attached to one another either directly or indirectly through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.
A first configuration of an adjustable grab railing is indicated generally by the number 100 in
Adjustable grab railing 100 includes an upper rail 102, a lower rail 104, and an adjustment rail 106. Upper rail 102 has a mount end 110 and an outer end 112. Lower rail 104 has an adjustment end 114 and an outer end 116. Adjustment rail 106 has a mount end 118 and an adjustment end 120. Outer end 112 of upper rail 102 is connected to outer end 116 of lower rail 104. In the example depicted in the drawings, upper rail 102 and lower rail 104 are integrally connected at a 180-degree curved bend. In other configurations, an outer rail is used to connect the two outer ends 112 and 116. Outer rail provides either a squared off configuration or a rounded configuration. Outer rail is connected to the others with welds or fasteners. Rails 102, 104, and 106 have a round, oval, square, or polygonal cross section and are metal tubes. For example, 1.25-inch round or square tubes are used for rails 102 and 104. In alternative embodiments, a cover 140 (
In the examples depicted in the drawings, adjustment end 120 of adjustment rail 106 telescopes inside adjustment end 114 of lower rail 104. At least adjustment end 120 thus has a cross-section dimension (width or diameter) that is small enough to allow it to slide inside lower rail 104. In other configurations, the telescoping arrangement is reversed with adjustment end 114 of lower rail 104 located inside adjustment end 120 of adjustment rail 106. The arrangement allows the straight main portions of upper rail 102 and lower rail 104 to remain parallel in all adjustment positions. Maintaining both in parallel provides a barrier function to railing 100 in addition to its hand rail function.
Both mount ends 110 and 118 are configured to be connected to mounting brackets 130 or 132 at a plurality of angles and then locked in place with a first locking fastener. Each rail 102 and 106 is thus selectively pivotably mounted to its own mounting bracket 130 or to its own portion of a common mounting bracket. Brackets 130 are configured to be secured to a flat mounting surface while mounting brackets 132 are configured to be secured over or around a corner such as the corner of a door jamb. Each is secured with fasteners such as screws, bolts, nails, or the like. In the configurations of
In the exemplary configuration, each mount end 110 and 118 has two spaced ears 134 that fit over a tab 136 that projects from mounting bracket 130 or 132. In other configurations, ears and tabs can be reversed. Both ears and tab define fastener openings that receives a first locking fastener 138 (see
In the configuration of
Another alternative configuration for railing 100 is shown in
The telescoping arrangement between lower rail 104 and adjustment rail 106 allows the angle of railing 100 and 200 to be adjusted with respect to the mounting structure. As railings 100 and 200 are pivoted with respect to the mounting structure, adjustment end 120 of adjustment rail 106 slides or telescopes with respect to lower rail 104. In one configuration, the angle is selected and then a second locking fastener such as a metal screw, bolt, or pin is inserted through lower rail 104 and adjustment rail 106 to lock the position. In this arrangement, a fastener opening is provided in lower rail 104 and a self-tapping screw is used to engage adjustment rail 106 to lock the two together. In the configurations depicted in the drawings, a second locking fastening system is provided that provides a plurality of preselected angles for railing configurations 100 and 200.
The adjustment locking fastener is either a single fastener 150 or a system that includes a pair of spaced adjustment locking fasteners 150A and 150B depending on the number of preset adjustment angles that are provided. In the exemplary configurations, adjustment locking fastener 150 or system 150 is carried by adjustment rail 106. In the exemplary configurations, adjustment fasteners 150 are quick snap pins (or button pins for telescoping tubing) that are biased toward a locked position by a U-shaped spring such that the locking pin snaps to a locked position when a pin opening defined by lower rail 104 is aligned with the locking pin. The pin openings are defined along the lower surface of the lower rail and when adjustments are provided in small increments, the pin openings would have to overlap to provide the small adjustment. To provide small adjustment increments between angles, two spaced adjustment locking fasteners 150 are used with the adjustment angles alternating between the fasteners.
In the exemplary embodiments, railings 100 and 200 are provided with preset pin openings for a horizontal (zero degree) configuration and seven angled configurations at angles 31, 33, 35, 37, 39, 41, and 43 degrees. These are depicted in
Lower rail 104 defines two pin openings 152 that are positioned to receive the locking pins from both adjustment locking fasteners 150 when rails 102 and 104 are horizontal (when mounted to a vertical mounting structure). Lower rail 104 also defines two sets of pin openings 154 and 156 that alternatively align with the locking pins of the first and second adjustment locking fasteners 150 as lower rail slides over alignment rail 106 toward mounting end 118 of alignment rail 106. The second adjustment locking fastener 150B is closer to outer end 116 than the first locking fastener. The 31-degree pin opening is closest to the second adjustment locking fastener 150B so that the locking pin will initially snap into the 31-degree pin opening as lower rail 104 is slid along adjustment rail 106. When a 31-degree adjustment is not desired, the locking pin is pushed back in and lower rail 104 is slid farther along adjustment rail 106 until the locking pin on the first adjustment locking fastener 150A is aligned with the 33-degree pin opening from pin opening set 154. This process can be continued until the locking pin of second adjustment locking fastener 150B snaps into the 43-degree pin opening. Pin opening set 154 has the openings for 33-, 37-, and 41-degree adjustments and pin opening set 156 has the openings for 31-, 35-, 39-, and 43-degree adjustments. Other than when adjusted for horizontal, only one pin is locked in an opening at a time. This configuration allows the two degree increments to be provided while keeping the pin openings on the bottom of lower rail 104. Another configuration locates the first and second adjustment locking fasteners 150 close together but spaced opening sets 154 and 156 are defined about the circumference of lower rail 104. Another configuration provides a single second adjustment locking fastener 150 and a single set of openings (such as 154 or 156) and provide larger angle increments between adjustment positions.
In the second configuration 200 of adjustable grab railing, lower rail 104 includes a first portion 202 and a second portion 204 connected by a selectively adjustable joint 206. Joint 206 can be the same as ear 134, tab 136, and bolt 138 mounts described above or another locking joint (such as the others described herein) that allows second portion 204 to pivot at least 90 degrees with respect to first portion 202 to provide the configuration of
A third configuration of the adjustable grab railing is indicated generally by the reference number 300 in
As above, each mounting bracket 130 of the third configuration includes a tab 302. In this configuration, tab 302 defines a central fastener opening 304 and a plurality of secondary fastener openings 306. In the exemplary configuration depicted in the drawings, tab 302 defines eight secondary fastener openings 306 which correspond to at least eight adjustment positions for railing 300. Secondary fastener openings 306 can be threaded or not threaded.
Each of upper rail 102 and adjustment rail 106 includes a set of two spaced ears 310 that fit over their respective tabs 302. Each set of spaced ears 310 defines a central fastener opening configured similar to the opening for fastener 138 depicted in
One of ears 310 in each set of ears also defines a plurality of secondary fastener openings 312 (
In the horizontal condition depicted in
Secondary fastener 314 can be threaded to both ear 310 and tab 302 or just one element. In another configuration, both ears 310 can define matching secondary fastener openings with secondary fastener 314 engaging both ears and tab 302. The combination of primary fastener 138 and secondary fastener 314 provides enough holding force to secure the adjusted position of railing 300, but adjustment locking fasteners 150 also can be used as described above.
A fourth configuration of an adjustable grab railing is indicated generally by the number 400 in
In the example depicted in the drawings, the adjustment end of adjustment rail 106 telescopes inside adjustment end 114 of lower rail 104. At least adjustment end 120 thus has a cross section dimension (width or diameter) that is small enough to allow it to slide inside lower rail 104. In other configurations, the telescoping arrangement is reversed with adjustment end 114 of lower rail 104 located inside the adjustment end of adjustment rail 106.
Lower rail 104 optionally includes adjustable joint 206 as described above that allows adjustment rail 106 to be mounted vertically.
Both mount ends 110 and 118 are configured to be connected to mounting brackets 430 or 432 at a plurality of angles and then locked in place with a first locking fastener 438. Each rail 102 and 106 is thus selectively pivotably mounted to its own mounting bracket 430 (or 432) or to its own portion of a common mounting bracket. Brackets 430 are configured to be secured to a flat mounting surface while mounting brackets 432 are configured to be secured over or around a corner such as the corner of a door jamb. Each is secured with fasteners such as screws, bolts, nails, or the like. In the configurations of
In the exemplary configuration, each mount end 110 and 118 has one ear 434 that is mounted to a corresponding tab 436 that projects from mounting bracket 430 or 432. In the fourth configuration, tabs 436 are either integral with mounting brackets 430 or 432 or tabs 436 are mounted with mounting fasteners 440 that extend through fastener openings 442 defined by mounting brackets 430 or 432 to engage threaded openings 444 defined by tabs 436. The body of tab 436 covers openings 442 when tab 436 is mounted to hide fasteners 440 from view. Openings 442 are configured to receive the heads of fasteners 440 so that fasteners 440 are flush with the rear surface of bracket 430 or 432.
Both ear 434 and tab 436 define fastener openings that receive first locking fastener 438 (see
The telescoping arrangement between lower rail 104 and adjustment rail 106 allows the angle of railing 400 to be adjusted with respect to the mounting structure. As railings 102, 104, and 106 are pivoted with respect to the mounting structure, adjustment end 120 of adjustment rail 106 slides or telescopes with respect to lower rail 104. The angle is selected and then one or more adjustment locking fasteners 450 such as a metal screw, bolt, or pin is inserted through portions of lower rail 104 and adjustment rail 106 to lock their positions. In one arrangement, one or more fastener openings are provided in lower rail 104 and self-tapping screws are used to engage adjustment rail 106 to lock the two together. In another configuration, hole sets 154 and 156 are defined as described above to define a plurality of adjustments angles for railing 400. In one embodiment, one or more adjustment fasteners 450 are inserted from the outside of lower rail 104 in one or more holes of hole sets 154 and 156. In another configuration, a single adjustment locking fastener 150 or a plurality of adjustment locking fasteners 150 as described above are used to lock the positions of rails 104 and 106.
In the foregoing description, certain terms have been used for brevity, clearness, and understanding. No unnecessary limitations are to be implied therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes and are intended to be broadly construed. Moreover, the description and illustration of the invention is an example and the invention is not limited to the exact details shown or described. Modifications and alterations of those embodiments will be apparent to one who reads and understands this general description. The present disclosure should be construed as including all such modifications and alterations insofar as they come within the scope of the appended claims or equivalents thereof. Throughout the description and claims of this specification the words “comprise” and “include” as well as variations of those words, such as “comprises,” “includes,” “comprising,” and “including” are not intended to exclude additives, components, integers, or steps.
This application claims the benefit of U.S. Provisional Patent Application Nos. 63/506,857 filed Jun. 8, 2023, 63/518,358 filed Aug. 9, 2023, and 63/616,355 filed Dec. 29, 2023; the disclosures of each are incorporated herein by reference.
Number | Date | Country | |
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63506857 | Jun 2023 | US | |
63518358 | Aug 2023 | US | |
63616355 | Dec 2023 | US |