BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to milled wooden or molded composite handrails for outdoor decking use, and more particularly to milled or molded handrail components and systems that have channels formed for concealing low-voltage wiring.
2. Description of the Related Art:
Low-voltage lighting is frequently used in outdoor locations such as around the exterior of houses and around patios and outside decks in residential or commercial locations. A transformer, which provides a low-voltage output, e.g., 12 V, feeds a cable that is routed to each of the lights in a circuit. Other low voltage wiring may also be present around exterior decks, such as video, audio and telephone wiring.
In a deck installation, the above-described low-voltage wiring cable is typically fastened to the underside of the deck or deck handrail and is visible, in particular when the cables sag over time. Having visible cables is generally undesirable as they detract from the appearance of the deck and handrails. Further, fastening cables under a deck may not be practical or easy, depending on clearance and may be subject to damage during gardening operations. Cables fastened under a handrail may also be damaged during gardening, or during cleaning/re-surfacing of the deck.
Therefore, it would be desirable to provide a system for concealing and protecting low-voltage cabling in an exterior decking system.
SUMMARY OF THE INVENTION
The above objectives, among others, are achieved in a deck railing system and components, along with their methods of installation and manufacture.
The deck railing components may be milled from lumber or molded/extruded from a plastic material and include an internal channel in which a low-voltage cable can be routed. The components include upright supports and horizontal rail members, either or both of which can contain the low-voltage cable. The upright supports may be formed from two portions having all or a portion of the channel milled or molded on a first surface of the portions, with the first surfaces bonded together with adhesive to form the upright support. The horizontal rail members may be formed with a lower portion having all or a portion of the channel formed on a top surface and a cover portion that fits over the top and sides of the lower portion to provide a handrail in which the channel is internal, completely concealing the cable.
The foregoing and other objectives, features, and advantages of the invention will be apparent from the following, more particular, description of the preferred embodiment of the invention, as illustrated in the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
The novel features believed characteristic of the invention are set forth in the appended claims. The invention itself, however, as well as a preferred mode of use, further objectives, and advantages thereof, will best be understood by reference to the following detailed description of an illustrative embodiment when read in conjunction with the accompanying drawings, wherein like reference numerals indicate like components, and:
FIG. 1A is a cross-section view and FIG. 1B is a side view of a lower portion 10 of a horizontal deck railing member in accordance with an embodiment of the invention.
FIG. 1C is an isometric end view of a horizontal deck railing member in accordance with an alternative embodiment of the invention.
FIG. 2A is a cross-section view and FIG. 2B is a side view of an upper portion 12 of a horizontal deck railing member in accordance with an embodiment of the invention.
FIG. 3A is a cross-section view of a portion 15 of an upright support 17, shown in cross-section in FIG. 3B, a side view of which is shown in FIG. 3C.
FIG. 4 is a pictorial diagram illustrating a deck railing system in accordance with an embodiment of the invention.
FIG. 5 is a pictorial diagram illustrating a deck railing system in accordance with another embodiment of the invention.
DESCRIPTION OF ILLUSTRATIVE EMBODIMENT
The present invention encompasses various components and a system for constructing decks and deck railings that include low-voltage wiring for supplying power to lighting and for interconnecting and powering other electrical/electronic devices. The railing components provide channels through which low-voltage cable is routed, completely concealing the cable where it is routed around a deck railing. The decking system of the present invention can also be used in fencing systems, where the fences are constructed from components that are similar to or identical to the decking system components described herein.
Referring to FIG. 1A and FIG. 1B, a cross-section view and a side view, respectively, of a lower portion 10 of a deck rail horizontal member is shown. A channel 11, for receiving one or more electrical cables, such as a 12V lighting wire for powering landscape lights that are attached to or disposed around/under a deck, is milled or otherwise formed in the top surface of lower portion 10. In the exemplary embodiment, channel 11 is 0.5 inches deep. The height of lower portion is approximately 1.5 inches and the width is approximately 3.5 inches in the exemplary embodiment, providing that a standard “2×4” lumber can be used for fabrication of lower portion 10. The length of a fabricated deck rail will generally be 8 feet or more, in two-foot increments as in standard lumber, and the depicted deck rail can be manufactured therefrom by a milling process or other suitable technique, such as extruding a composite thermoplastic material to form lower portion 10. As will be noted below, upper portions of the horizontal members will be longer than lower portions 10 in order to cover upright railing supports, so lower portions 10 may be shortened from the standard two-foot increments by an amount to compensate for the width of one or more upright supports.
Referring to FIG. 1C, an isometric end view of a lower portion 10A in accordance with another embodiment of the present invention is shown. Lower portion 10A is identical to lower portion 10 as described above, except for additional features as described below. As will be illustrated below with reference to FIG. 5, the horizontal components of the deck rail system can be installed above the tops of vertical upright supports, as an alternative to installing them between the sides of the upright supports. When installed above the tops of the upright supports, a notch 18 can be provided at one or both ends of lower portion 10A, in order to provide a channel through lower portion 10A for a wire to be fed to channel 11 from a channel in one of the upright supports.
Referring to FIG. 2A and FIG. 2B, a cross-section view and a side view, respectively, of an upper portion 12 of a deck rail horizontal member is shown. A first channel 13, is formed on the underside of upper portion 12 and has a width slightly greater than a width of lower portion 10, so that upper portion 12 can be fitted over lower portion 10, enclosing channel 11. A second channel 14 is formed within first channel 13 to provide additional volume in conjunction with channel 11 for including connectors such as twist-on wire splices. However, channel 14 may be omitted if the additional volume is not required, and alternatively, channel 14 may be included and used with another lower portion that does not include a channel, so that channel 14 provides the entire routing volume for the low-voltage cable in the horizontal members when assembled. Sides of upper portion 12 are provide with smooth radius 15, to provide a suitable handrail feel and to protect against damage of the top corners of the deck handrail.
Referring to FIG. 3A, a cross-section view of a portion 20 of a deck railing upright support is shown. A channel 16 is formed in upright support portion 20, and in the exemplary embodiment has a depth of 0.188 inches. The width and height of upright support portion 20 in the exemplary embodiment are 3.5 inches and 1.75 inches, respectively, providing that the finished upright support will have the dimensions of a standard “4×4” when assembled as shown in FIG. 3B.
Referring now to FIG. 3B and FIG. 3C, a cross-section view and a side view, respectively, of a deck railing upright support 17 is shown. Two upright support portions 20 are adhered together by an adhesive 18 forming a channel 16A with a combined height of approximately 0.375, through which a low-voltage cable can be run and completely concealed/protected. The length of upright supports 17 are such that proper handrail height above the deck is provided at the top surface of the horizontal member upper portions 12, in the complete system as illustrated in FIG. 4 below.
Referring now to FIG. 4, a deck railing system in accordance with an embodiment of the invention is shown. In order to make a completely concealed and protected low-voltage wiring path, horizontal member lower portions 10 are butted and fastened between upright supports 17. Then horizontal member upper portions 12 are secured over lower portions 10 after low voltage cable 22 has been routed and any required splices 24 have been made. Channel 14 provides clearance for cable 22 to transition from the tops of upright supports 17 to channel 11 in horizontal member lower portions 10, as shown in detail in balloon 30. However, in an alternative embodiment, a horizontal channel can be milled/molded across the top end of upright supports 17 to effectively extend channel 11 across upright supports 17, in which case channel 14 may be optionally omitted from upper portions 12.
Transitions into and out of channels 11, 14 and 16A in the decking system can be made by holes drilled through to the channels, or for the bottom ends of upright supports 17 through the deck on which upright supports 17 rest, so that lighting fixtures, transformer connections and any other source or destination for low-voltage or signaling cabling can be connected. The above described deck railing system provides concealment and protection for cabling between such endpoints or mid-points. Further, while the above descriptions assume that the components are milled from wood, composite plastics or other plastic materials may be molded, extruded or otherwise shaped to provide alternative construction materials in the depicted forms, which are also contemplated to be within the scope of the invention.
Each of the above-described deck railing features can be included in a composite plastic component and appropriate manufacturing process in order to provide advantages such as those described above. While molds having the above-described cross sections are not explicitly shown, such molds are easily constructed for the cross sections illustrated and are well within the capabilities of a person of ordinary skill in the art to construct from the provided Figures.
Referring now to FIG. 5, a deck railing system in accordance with another embodiment of the invention is shown. The deck railing system of FIG. 5 is similar to the deck railing system of FIG. 4 as described above. Therefore, only differences between the two systems will be described in further detail below. In the deck railing system of FIG. 5, horizontal member lower portions 10A are butted and fastened above upright supports 17. Then horizontal member upper portions 12 are secured over lower portions 10A after low voltage cable 22 has been routed and any required splices 24 have been made. Channel 14 can be omitted from horizontal member upper portions 12 and notches 18 at the ends of lower portions 10A provides clearance for cable 22 to transition from channel 16A within upright supports 17 to channel 11 within horizontal member lower portions 10A. Details of which are shown in balloon 40. As an alternative to rectangular notches 18, a hole may be drilled through one or both horizontal member lower portions, such as horizontal member lower portion 10 as shown in FIGS. 1A-1B, to provide a channel through to channel 16A within upright supports 17.
Each of the above-described deck railing features can be included in a composite plastic component and appropriate manufacturing process in order to provide advantages such as those described above. While molds having the above-described cross sections are not explicitly shown, such molds are easily constructed for the cross sections illustrated and are well within the capabilities of a person of ordinary skill in the art to construct from the provided Figures.
While the invention has been particularly shown and described with reference to the preferred embodiment thereof, it will be understood by those skilled in the art that the foregoing and other changes in form, and details may be made therein without departing from the spirit and scope of the invention.
Patent Application
20110309317
