The present invention relates to electrical power systems and, more particularly, to electrical power systems supported along furniture.
The need or desire to incorporate electrical power outlets in different locations has increased as portable electronic devices such as mobile phones, portable media players, and the like have proliferated, since these devices often require frequent charging of onboard batteries. Such devices typically require access to either low voltage (e.g., 2V DC to 12V DC) power outlets, or high voltage (e.g., 110V AC or 220V AC) power outlets together with a DC power converter.
The present invention provides an electrical outlet assembly with high voltage AC (e.g. 110V or 220V) and/or low voltage DC (e.g., 2V DC to 12V DC) electrical outlets positioned at a convenient location alongside a support cushion, such as a seating cushion of a chair, a bed mattress, or the like. The electrical outlet assembly is held in place by gravity and friction, typically without the use of any fasteners, and thus is readily removed, replaced, and relocated to other furniture articles as desired by a user. Optionally, a portion of the electrical outlet assembly is formable or reconfigurable to accommodate different thicknesses of cushion, or to adjust the height at which the electrical outlets are positioned relative to a top surface of the cushion.
According to one form of the present invention, a cushion-mountable electrical outlet system for furniture includes a generally flat body, an electrical outlet assembly mounted to the flat body, at least one electrical outlet, and an electrical cord. The flat body has a proximal end portion configured to be positioned between a cushion and a panel of a furniture article that is proximate the cushion. The flat body has an upright distal end portion configured to be positioned alongside an upright side edge of the cushion, and a deformable region below the upright distal end portion. The electrical outlet assembly is mounted at the distal end portion of the flat body and positionable so as to be accessible to a user supported at the cushion. The electrical outlet is mounted in the electrical outlet assembly and faces generally upwardly, while the electrical cord is in electrical communication with the electrical outlet and exits the electrical outlet assembly for coupling to a power source such as a wall or floor outlet.
In one aspect, the generally flat body is at least partly made up of a resinous material disposed around a plastically deformable metal in the deformable region.
In another aspect, the generally flat body includes a pair of parallel spaced-apart legs that are joined at their respective proximal ends by a bight portion opposite the electrical outlet assembly. Optionally, each of the legs includes a resinous material disposed around a plastically deformable metal in the deformable region.
In yet another aspect, the electrical cord exits a lower region of the electrical outlet assembly and is spaced between the legs as it exits the outlet assembly.
In a further aspect, the generally flat body is plastically deformable at different locations along a continuum of the deformable region.
In still another aspect, the electrical outlet assembly is positionable at different angles relative to the upright distal end portion of the flat body.
In a still further aspect, the flat body defines a passageway extending from the proximal end portion to the distal end portion through which the electrical cord is routed, and the electrical cord extends the entire length of the flat body. Optionally, the passageway of the flat body is located along a central longitudinal axis thereof.
In another aspect, the electrical outlet assembly includes one or more of a high voltage AC power outlet, a low voltage DC power outlet, and an electronic data outlet.
In yet another aspect, the electrical outlet assembly has a substantially planar top surface with one or more openings corresponding to power outlet(s). The top surface is non-perpendicular to the upright distal end portion of the flat body, and the top surface is angled relative to a horizontal plane when the upright distal end portion of the flat body is oriented in a vertical plane.
According to another form of the present invention, a cushion-mountable electrical outlet system for furniture includes a generally flat body, an electrical outlet assembly coupled to the flat body, and an electrical receptacle mounted at the electrical outlet assembly. The flat body has an upper end portion, a plastically deformable region, and a lower end portion. The deformable region can be deformed to set the lower end portion at an oblique angle relative to the upper end portion. The lower end portion is intended be positioned between a downwardly-facing surface of a cushion and an upwardly-facing surface of a furniture article that supports the cushion. The upper end portion is intended to be positioned alongside an upright side edge of the cushion. The electrical outlet assembly is coupled to the upper end portion of the flat body and is positionable so as to be accessible to a user supported at the cushion. The electrical outlet assembly includes a downwardly-facing lower surface for engaging an upwardly-facing top surface of the cushion. The electrical receptacle at the electrical outlet assembly is positioned above the downwardly-facing lower surface.
Therefore, the present invention provides an electrical outlet assembly that can be readily positioned and re-positioned at convenient locations alongside a support cushion, such as in a seating or sleeping area or the like. The electrical outlet assembly is held in place by gravity and friction, and a portion of the electrical outlet assembly may be bendable and re-bendable to accommodate different thicknesses of cushion, or to adjust the height at which the electrical outlets are positioned for use.
These and other objects, advantages, purposes and features of the present invention will become apparent upon review of the following specification in conjunction with the drawings.
Referring now to the drawings and the illustrative embodiments depicted therein, a cushion-mountable electrical outlet assembly 10 is specially adapted for installation at or along a cushion 12 of a chair 14 or other seating (
Flat body 16 has a sufficient width W (
Flat body 16 may be formed of aluminum in an extrusion process, for example, or may be formed (such as by molding or extrusion) from a less rigid resinous material such as SANTOPRENE® brand thermoplastic elastomer (“TPE”), which is available from Exxon Mobil Corp. of Irving, Tex. TPE and other resinous materials such as soft rubber or rubber-like materials may also exhibit higher friction coefficients with fabrics, leather, vinyl, and other materials typically used for furniture, as compared to aluminum and other metals, as well as compared to harder plastic materials. Higher friction coefficients may be desirable to increase the flat body's resistance to inadvertent movement between cushion 12 and upper surface 22 of chair 14. Friction coefficients may further be increased by molding or otherwise forming a rough or knobby surface texture into the outer surfaces of flat body 16, and it will further be appreciated that a coarse grit-like surface (similar to coarse sandpaper) may be provided along flat body 16 in order to resist undesirable sliding or shifting of the electrical outlet assembly 10 as persons sit or shift their weight along cushion 12.
A central channel region 28 extends along flat body 16 and contains cord 18. Where flat body 16 is formed of extruded aluminum or similar, central channel region 28 may be a generally cylindrical hollow tube formed by the extrusion mold, with the cord 18 being routed through the channel region 28 after the flat body 16 is cut to length, and before flat body 16 is formed to its final shape. In such an arrangement, a rubber grommet or the like may be fitted to one or both ends of central channel region 28, surrounding cord 18, to provide a strain relief. Where flat body 16 is instead formed of molded thermoplastic material, it may be overmolded directly around a portion of cord 18, thus avoiding a separate cord-insertion step and providing a cord strain relief to resist pull-out of the cord from electrical outlet assembly 20.
Cord 18 is a flexible member formed from two or more individually insulated electrical conductors that may be jacketed by TPE or other flexible material, and a conventional plug 30 may be fitted at a proximal end 18a of cord 18, such as shown in
Where flat body 16 is formed of molded thermoplastic material, one or more bendable or pliable wires that are easily plastically deformed and tend to maintain new shapes to which they are bent, are overmolded by the material of flat body 16 and serve to maintain flat body 16 in a desired shape, since the thermoplastic material of flat body 16 may otherwise tend to return to its original molded shape. Such wire is generally known as “armature wire” and may be made from steel, aluminum, or the like, and is preferably a material that resists work-hardening so that it may be reformed many times without breaking.
Electrical outlet assembly 20 is attached to upper end portion 16b of flat body 16, and receives a distal end portion of power cord 18 through central channel region 28. Optionally, upper end portion 16b terminates at an outwardly-flared or expanded-thickness end 32 where outlet assembly 20 is mounted. Outlet assembly 20 may be attached to flat body 16 using various known methods including threaded fasteners, twist-lock fasteners, snap-fit or latching elements, slide-in bracket-and-slot connections, and the like. Various connecting methods and structures that may be used for attaching outlet assembly 20 to flat body 16 are disclosed, for example, in commonly-owned U.S. Pat. Nos. 6,379,182; 7,736,178; and 9,148,006, which are all hereby incorporated herein by reference in their entireties.
In the illustrated embodiments, electrical outlet assembly 20 includes an extruded generally C-shaped housing 34 having an end cap 36 mounted at each end thereof, and with an open front region in which one or more electrical power outlet receptacles 24 and/or electronic data outlets are mounted, such as in a manner more fully described in commonly-owned U.S. Pat. Nos. 7,736,178; 8,444,432; 8,480,429; and 9,312,673, which are all hereby incorporated herein by reference in their entireties. Electrical outlet assembly 20 may be sized and shaped to support one or more electrical outlets 24, including high voltage AC outlets 24a, low voltage DC outlets 24b (such as USB-style outlets), and/or electronic data outlets such as connectors or receptacles for audio, video, telephone, Ethernet, HDMI, fiber optic, and the like. It will be appreciated that low voltage DC outlets 24b may be supplied with low voltage DC current by an electrical converter mounted in housing 34, the electrical converter receiving AC line voltage from the conductors of power cord 18 and converting to a low voltage DC output that is supplied to one or more low voltage DC outlets 24b, such as more fully described in commonly-owned U.S. Pat. No. 9,312,673, which is hereby incorporated herein by reference in its entirety. However, it is further envisioned that power cord 18 may be adapted to carried low voltage power and/or electronic data signals, instead of or in addition to high voltage AC electrical current, depending on the application and the availability of separate low voltage DC power and/or electronic data connectors to which electrical outlet assembly 10 may be connected.
In the illustrated embodiment of
However, in other embodiments the length of the electrical outlet assembly's housing and the width of flat body may be adjusted according to the number of outlets or outlet openings desired. For example, and with reference to
As noted above, the flat body 16 of cushion-mountable electrical outlet assembly 10 may be formed to a desired shape during production, such as to fit a relatively thicker cushion 12 (
As shown in
Optionally, and with reference to
Flat body 116 has a lower proximal end portion 116a and an upper distal end portion 116b where there is an angled body portion 117 that has a longitudinal axis that is angled at about 90 degrees relative to the longitudinal axis of flat body 116, although it will be appreciated that other angles are envisioned such as about 45 degrees (from parallel) to about 135 degrees (i.e. forming an acute angle with flat body 116). Angled body portion 117 and flat body 116 may be unitarily formed, such as in a molding operation. An electrical outlet assembly 120 is coupled to an outer or upper face 117a of angled body portion 117, and in the illustrated embodiment, includes both a high voltage AC outlet 124a and a low voltage DC outlet 124b. Electrical outlet assembly 120 may be coupled to angled body portion 117 using substantially any suitable means such as threaded fasteners or rivets, adhesives, ultrasonic welding, and the like. Optionally, an outer housing 134 of electrical outlet assembly 120 may be unitarily formed with angled body portion 117 and/or with flat body 116, although it may be desirable to form outer housing 134 of a harder material as compared to angled body portion 117 and especially flat body 116, which is held in place between soft seating surface 112 and upright arm portion 115 by friction and gravity.
Flat body 116 defines a wiring passageway 128 extending from proximal end portion 116a to distal end portion 116b along the longitudinal axis of flat body 116. An electrical cord 118 is routed through wiring passageway 128, which continues through angled body portion 117 and into a lower region of electrical outlet assembly 120 where the wiring is electrically connected to the electrical terminals of the outlets 124a, 124b, albeit via a power transformer in the case of low voltage DC outlet 124b.
Cushion-mountable electrical outlet assembly 110 relies upon highly frictional engagement between outer surfaces of flat body 116 and the outboard end 112a of soft seating surface 112 and an inwardly-facing surface 115a of upright arm portion 115 of furniture article 114. Therefore, the same relatively soft materials with high friction coefficients, and/or rough surface texture as described above, or even surfaces like the hook-side of a hook-and-loop fastener arrangement, may be used along flat body 116 to help resist the assembly 110 inadvertently moving relative to the furniture article. Flat body 116 may be more rigid than the longer flat body 16 described above, particularly since flat body 116 is not adapted to curve underneath a cushion or the like.
Various other arrangements of cushion-mountable electrical outlet assemblies are envisioned, such as a cushion-mountable electrical outlet assembly 210 having a flat body 216 formed as a generally rectangular loop of material at its lower region, and a generally L-shaped upper support region including an angled body portion 217a and an upright body portion 217b at which an electrical outlet assembly 220 is mounted, such as shown in
Instead of routing a power cord through the material of the flat body 216, a power cord 218 exits a lower region of electrical outlet assembly 220 and through an opening formed in angled body portion 217a near where it meets upright body portion 217b. Electrical outlet assembly 220 includes an outer housing 234 having a height corresponding to the height of upright body portion 217b, a depth corresponding to the depth of angled body portion 217a, rounded corners 234a corresponding to the shape of angled body portion 217a, and a top surface 234b having openings corresponding to a high voltage AC receptacle 224a, a pair of USB-style (such as USB-A) low voltage DC receptacles 224b, and another USB-style (such as USB-C) low voltage DC receptacle 224c. It will be appreciated that the angled body portion 217a may serve as a downwardly-facing lower surface of outer housing 234, and this body portion or lower surface is positionable to engage an upwardly-facing top surface of a cushion 12. The cushion-mountable electrical outlet assembly 210 is functionally similar to the outlet assemblies 10, 10′ that are described above, such that other details of fitting, installation, and operation need not be repeated herein.
In another embodiment that is similar to the cushion-mountable electrical outlet assembly 210 of
As best shown in
Referring to
Thus, the cushion-mountable electrical outlet assemblies of the present invention provide convenient access to electrical power and/or electronic data connections at or along a furniture article having a removable at least partially-separable cushion. Because the cushion-mountable electrical outlet assemblies are typically held in place at the furniture articles only by gravity and friction, and not with mechanical fasteners, the outlet assemblies are readily removable and replaceable as desired, and may also be reconfigured for use at different furniture articles including articles having different thicknesses of cushions or the like.
Changes and modifications in the specifically-described embodiments may be carried out without departing from the principles of the present invention, which is intended to be limited only by the scope of the appended claims as interpreted according to the principles of patent law including the doctrine of equivalents.
The present application claims the benefit of U.S. provisional application Ser. No. 62/432,342, filed Dec. 9, 2016, which is hereby incorporated herein by reference in its entirety.
Number | Date | Country | |
---|---|---|---|
62432342 | Dec 2016 | US |