1. Technical Field
Aspects of the present documents relate generally to traffic barricade lights.
2. Background Art
Traffic barricade lights are commonly used to signal motorists' attention to road construction and repairs, road closures, detours, and the like. Such traffic barricade lights may be placed atop barricades, barriers, cones, barrels, poles, and the like. Traffic barricade lights typically include a base sized to hold D-size batteries, a cover to mount over the top of the base containing various electrical components, and a light source mounted atop the cover within a diffusion lens to broaden the light source beam.
Aspects of this document relate to gangable electrical boxes.
In one aspect, a traffic barricade light comprises a housing having a collar, a bottom side, a height, a width and a depth, the depth being less than both the height and the width. The housing is separably divided along an axis positioned within the depth. The housing also comprises at least two angled walls on opposing shoulders of the housing within the depth at an oblique angle relative to the bottom side of the housing. Each angled wall comprises a recess and a passage from the recess to a compartment within the housing. At least two solar panels are included, and a solar panel is coupled to each angled wall. The at least two solar panels are electrically coupled in parallel with each other and with at least one rechargeable battery stored within the housing. A regulator circuit is electrically coupled between the at least two solar panels and the at least one rechargeable battery. In addition, a light source is electrically coupled to the battery. A lens is coupled to the collar.
Particular implementations may include one or more of the following. The housing may be separably divided at a midpoint of the depth. The housing may comprise a front side and a back side, and the front side may be separably coupled with the back side via at least one fastener passing through both the front side and the back side. The front side and the back side may each comprise an external wall, a plurality of internal walls extending within the housing from the front side to the back side of the housing, and a plurality of tabs extending from the plurality of internal walls, the plurality of tabs corresponding with a plurality of notches in the plurality of internal walls such that when the front side of the housing is mated with the back side of the housing, wherein the plurality of tabs each mates with its corresponding notch of the plurality of notches. At least two of the plurality of tabs are oriented in a different direction from one another. The plurality of internal walls may define a battery cavity. One of the at least two solar panels may be coupled within the recess. A lens depth and the housing depth may be substantially equal.
In another aspect, a housing assembly for a traffic barricade light battery comprises a housing having a collar, a bottom side, a front side, a back side, a height, a width and a depth, the depth being less than both the height and the width. The housing is separably divided along an axis positioned within the depth. The housing comprises at least two angled walls on opposing shoulders of the housing within the depth at an oblique angle relative to the bottom side of the housing. Each angled wall comprises a recess and a passage from the recess to a compartment within the housing. The front side and the back side each comprise an external wall, a plurality of internal walls extending within the housing from the front side to the back side of the housing, and a plurality of tabs extending from the plurality of internal walls, the plurality of tabs corresponding with a plurality of notches in the plurality of internal walls such that when the front side of the housing is mated with the back side of the housing, wherein the plurality of tabs each mates with its corresponding notch of the plurality of notches.
Particular implementations may include one or more of the following. At least two of the plurality of tabs may be oriented in a different direction than one another. The housing may be separably divided at a midpoint of the depth. The front side may be separably coupled with the back side via at least one fastener passing through both the front side and the back side. The plurality of internal walls may define a battery cavity. At least two solar panels may be included, and each of the at least two solar panels may be disposed within a recess on each of the at least two angled walls.
In still another aspect, a traffic barricade light comprises a housing having a collar, a bottom side, a height, a width and a depth, the depth being less than both the height and the width, wherein the housing is separably divided along an axis positioned within the depth. The housing comprises a recess and a passage from the recess to a compartment within the housing. At least two solar panels are electrically coupled in parallel with each other and with at least one rechargeable battery stored within the housing. A light source is electrically coupled to the battery. A lens is coupled to the collar.
Particular implementations may include one or more of the following. The compartment may comprise a plurality of interlocking tabs, at least two of the plurality of interlocking tabs oriented in a different direction than one another. A regulator circuit may be electrically coupled between the at least two solar panels and the at least one rechargeable battery. The housing may comprise at least two angled walls on opposing shoulders of the housing within the depth at an oblique angle relative to the bottom side of the housing. The recess may be disposed within each of at least two angled walls on opposing shoulders of the housing, the at least two angled walls located within the depth at an oblique angle relative to the bottom side of the housing. The front side and the back side may each comprise an external wall, a plurality of internal walls extending within the housing from the front side to the back side of the housing, and a plurality of tabs extending from the plurality of internal walls, the plurality of tabs corresponding with a plurality of notches in the plurality of internal walls such that when the front side of the housing is mated with the back side of the housing, wherein the plurality of tabs each mates with its corresponding notch of the plurality of notches. Also, the plurality of internal walls may define a battery cavity.
The foregoing and other aspects, features, and advantages will be apparent to those artisans of ordinary skill in the art from the DESCRIPTION and DRAWINGS, and from the CLAIMS.
A gangable electrical unit will hereinafter be described in conjunction with the appended drawings, where like designations denote like elements, and:
This disclosure, its aspects and implementations, are not limited to the specific components or assembly procedures disclosed herein. Many additional components and assembly procedures known in the art consistent with the intended operation and/or assembly procedures for a traffic barricade light will become apparent for use with implementations of barricade lights from this disclosure. Accordingly, for example, although particular traffic barricade lights, housings, collars, bottom sides, heights, widths, depths, axes, angled walls, opposing shoulders, recesses, passages, compartments, solar panels, rechargeable batteries, regulator circuits, light sources, lenses, interlocking tabs, tabs, notches, front sides, back sides, external walls, internal walls, tabs, battery cavities, barricades, charger bases, and implementing components are disclosed, such may comprise any shape, size, style, type, model, version, measurement, concentration, material, quantity, and/or the like as is known in the art for such traffic barricade lights, consistent with the intended operation of a traffic barricade light.
There are a variety of traffic barricade light implementations.
Referring now to
Referring still to the particular implementation shown in
At some point during the day, at least a portion of the at least two solar panels 32 is at least partially shaded at least by the housing 4 and/or lens 40. For example, when the traffic barricade light 2 is oriented such that the at least two solar panels 32 are in an east-west facing orientation, and when it is early in the day (with the sun comparatively near to the eastern horizon), the eastward-facing solar panel 32 may be in direct sunlight, although the westward-facing solar panel 32 will be at least partially shaded at least by the housing 4 and/or lens 40. Conversely, when it is late in the day and the sun is comparatively near to the western horizon, the westward-facing solar panel 32 may be in direct sunlight, although the eastward-facing solar panel 32 will be at least partially shaded by at least the housing 4 and/or lens 40. In any event, an operator may position traffic barricade light 2 such that the at least two solar panels are in a north-south orientation, or in an east-west orientation. Whether traffic barricade light 2 is positioned in a north-south orientation, or in an east-west orientation, or in some other orientation, by orienting the solar panels 32 obliquely and in different directions, as opposed to orienting them in the same direction and parallel, combined with electrically coupling the solar panels 32 in parallel, the charge energy that can be stored from the at least two solar panels 32 can be maximized throughout the day. Therefore, there is no requirement that an operator position this particular implementation of the traffic barricade light 2 in any particular orientation to take advantage of the solar power.
In some particular implementations, a solar panel 32 may be coupled within a recess 26 such that an upper surface 33 of the solar panel 32 is substantially flush with or just slightly below the top surface of the angled wall 22. This arrangement may be particularly useful to protect the solar panels 32 in the event that traffic barricade light 2 is knocked to the ground, or the housing 4 is otherwise subjected to abuse such as being run over by a motorized vehicle or equipment, being impacted by tools or debris, and/or other physical assaults.
The at least two solar panels 32 may be electrically coupled with one another in a parallel arrangement. In addition, the solar panels 32 are likewise coupled in parallel with at least one rechargeable battery 34 stored within the housing 4. Those having ordinary skill in the art will be able to select one or more appropriate rechargeable batteries for use with particular implementations of traffic barricade light described herein. In particular, the solar panels 32 are in electrical communication with a rechargeable battery 34 via one or more electrical connectors 35 which, in particular implementations, may pass through a passage 28. In the particular implementation shown, a regulator circuit 36 is coupled between the solar panels 32 and the at least one rechargeable battery 34.
As described above, neither of the at least two solar panels 32 will be directly facing the sun at the same time in the day, and it is possible that neither of the at least two solar panels 32 will directly face the sun at any time during the day. Accordingly, the at least two solar panels 32, collectively, operate below their maximum possible charging capacity throughout the course of the day. The regulator circuit 36 regulates the maximum operating point between the solar panels 32 and the at least one rechargeable battery 34 such that an optimum charge power is achieved throughout the day as the at least one rechargeable battery 34 is charged (described further below with respect to
Now referring to
The housing 4 contains most of the comparatively expensive components defining a traffic barricade light 2 such as, by way of non-limiting example, the at least two solar panels 32, the at least one rechargeable battery 34, and the regulator circuit 36. By contrast, the lens 40 is relatively inexpensive to make and relatively quick to install/replace. Accordingly, in cases where the traffic barricade light 2 is run-over by a car, for example, the lens 40 will most likely be destroyed. By configuring the lens 40 with breakable plastic materials and a relatively weak connection between the lens 40 and the collar 10 of the housing 4, the lens crushes and/or separates from the housing if it is run over by a vehicle or hit with a sudden force. In addition, in particular implementations, the depth of the lens 40 is substantially the same as the depth 18 of the housing 4, such that when a traffic barricade light 2 is run over by a motor vehicle, for instance, the lens 40 may be crushed, but the housing 4 may remain flat on the ground surface, resisting torque on the collar 10 and the sheer force across the body of the housing that is generally caused when a vehicle runs over a conventional barricade light assembly. Furthermore, the fortification of the housing 4 through at least a plurality of internal walls 50 and the mechanical cooperation of tabs 42 and notches 52, as described further below, increases the comparative durability of the collar 10 and housing 4 with respect to the lens 40.
As noted above, traffic barricade lights, such as the traffic barricade light 2, may be subjected to abuse during their normal course of operation. Specifically, in some instances, by way of non-limiting example, the traffic barricade light 2 may be run over by a motorized vehicle or equipment. In some particular implementations of a traffic barricade light, the housing 4 is made crush-resistant due at least to the presence of a plurality of internal walls 50 that extend from the front side 6 to the back side 8 of the housing 4.
In particular, both the front side 6 and the back side 8 of the housing 4 comprise an external wall 48. A plurality of internal walls 50 extend both from the external wall 48 of the front side 6, as well from the external wall 48 of the back side 8 (see
In some particular implementations, the plurality of internal walls 50 may define a through aperture 46 to allow the passage therethrough of a fastener such as, by way of non-limiting example, a screw or bolt. In such particular implementations, the fastener may pass through both front side 6 and back side 8. In other particular implementations, the plurality of internal walls 50 may define a battery cavity, such as the battery cavity 54, or an internal compartment, such as the compartment 30. In still other particular implementations, the plurality of internal walls 50 may define any internal curvilinear or rectilinear shape when viewed in cross section such as, by way of non limiting example, circular, triangular, square, rectangular, pentagonal, hexagonal, heptagonal, octagonal, nonagonal, decagonal, or the like.
In addition to the crush-resistance of housing 4 described above, in some particular implementations of a traffic barricade light, the housing 4 (including the collar 10) may be made shear-stress resistant. Shear-stress or shear-force refers to sliding or transversely-acting forces, such as the force applied by opposing blades of a pair of scissors while cutting a piece of paper. Frequently, when traffic barricade lights (such as traffic barricade light 2) are run over by a motor vehicle or other equipment, shearing forces are applied to the housing 4 such that the front side 6 and the back side 8 are forced in different directions. Specifically, as the tire or tires of a vehicle rolls over the housing 4, the side in contact with the ground (either the front side 6 or the back side 8) may tend to remain stationary due at least to a the weight of the vehicle pressing down, as well as friction between that side of the housing 4 and the ground. By contrast, a rolling tire may contact the side of housing 4 that faces skyward (whichever of the front side 6 and the back side 8 that is not in contact with the ground), thereby laterally pushing or pulling the skyward-facing side of the housing 4 (depending upon the direction of approach and/or rotation of the tire) with respect to the side of the housing 4 that is in contact with the ground. Accordingly, one non-limiting example of a shear-force may occur where a traffic barricade light 2 is run over by a motor vehicle.
It is the particular configuration of the housing 4 that resists applied shearing forces. In particular, the housing 4 resists shearing forces at least due to the mechanical cooperation of a plurality of tabs 42 that extend from the plurality of internal walls 50 with a plurality of notches 52 located in the plurality of internal walls 50 to form a joint 49 (
In some particular implementations, the front side 6 and the back side 8 may comprise symmetrical halves. In other particular implementations, the front side 6 and the back side 8 may comprise asymmetrical sides. In still other particular implementations, the front side 6 and the back side 8 may be identical such that when an internal wall 50 of the front side 6 faces an internal wall of the back side 8, the plurality of tabs 42 and the plurality of notches 52 on the front side 6 and the back side 8, respectively, present a mating-image to one another such that a tab 42 on the front side 6, for instance, corresponds to a notch 52, for example, on the back side 8 (and vice-versa).
Turning now to
In particular, when energy strikes one or more solar cells 32, a current will flow through resistor 62 and into the base of one or more transistors 64 via the base windings of transformer 66. The output of transformer 66 may be converted to direct current (DC) through one or more output diodes 74. In some particular implementations, voltage generated by the one or more solar cells 32 may not be sufficient to turn on transistors 64. In some particular implementations, transformer 66 may act as an inductor. In addition, in some particular implementations, a control circuit 36 is connected to the battery. The control circuit 36 monitors the state of charge of the one or more batteries 34 and prevents one or more batteries 34 from being overcharged. Specifically, when the battery 34 has reached full capacity, a base of transistor 68 is raised by the control circuit 36 through resistor 70. In particular implementations, transistor 68 clamps a base terminal 65 of the power converter transistors 64. Two or more diodes 72 isolate the base signals from interfering with each other. In some particular implementations, control circuit 36 will charge the battery 34 with a little as 0.25 volts, even if the battery 34 is completely discharged and the battery voltage is 0.0.
Still referring to
It is specifically contemplated that the components included in a particular implementation of a traffic barricade light may be formed of any of many different types of materials or combinations that can readily be formed into shaped objects and that are consistent with the intended operation of a traffic barricade light. For example, the components may be formed of: rubbers (synthetic and/or natural) and/or other like materials; polymers and/or other like materials; plastics, and/or other like materials; composites and/or other like materials; metals and/or other like materials; alloys and/or other like materials; and/or any combination of the foregoing.
Furthermore, the particular barricade lights, housing assemblies, housings, collars, bottom sides, heights, widths, depths, axes, angled walls, opposing shoulders, recesses, passages, compartments, solar panels, rechargeable batteries, regulator circuits, light sources, lenses, interlocking tabs, front sides, back sides, external walls, internal walls, tabs, battery cavities, and implementing components forming a particular implementation of a traffic barricade light may be manufactured separately and then assembled together, or any or all of the components may be manufactured simultaneously and integrally joined with one another. Manufacture of these components separately or simultaneously may involve extrusion, pultrusion, vacuum forming, injection molding, blow molding, resin transfer molding, casting, forging, cold rolling, milling, drilling, reaming, turning, grinding, stamping, cutting, bending, welding, soldering, hardening, riveting, punching, plating, and/or the like. If any of the components are manufactured separately, they may then be coupled or removably coupled with one another in any manner, such as with adhesive, a weld, a fastener, any combination thereof, and/or the like for example, depending on, among other considerations, the particular material(s) forming the components. By way of non-limiting example, the housing 4 and lens 40 may be formed separately and thereafter coupled together.
It will be understood that particular implementations are not limited to the specific components disclosed herein, as virtually any components consistent with the intended operation of a method and/or system implementation for a traffic barricade light may be utilized. Accordingly, for example, although particular barricade lights, housing assemblies, housings, collars, bottom sides, heights, widths, depths, axes, angled walls, opposing shoulders, recesses, passages, compartments, solar panels, rechargeable batteries, regulator circuits, light sources, lenses, interlocking tabs, front sides, back sides, external walls, internal walls, tabs, battery cavities, and implementing components may be disclosed, such components may comprise any shape, size, style, type, model, version, class, grade, measurement, concentration, material, weight, quantity, and/or the like consistent with the intended operation of a method and/or system implementation a traffic barricade light may be used.
In places where the description above refers to particular implementations of a traffic barricade light, it should be readily apparent that a number of modifications may be made without departing from the spirit thereof and that these implementations may be applied to other traffic barricade lights. The accompanying claims are intended to cover such modifications as would fall within the true spirit and scope of the disclosure set forth in this document. The presently disclosed implementations are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the disclosure being indicated by the appended claims rather than the foregoing description. All changes that come within the meaning of and range of equivalency of the claims are intended to be embraced therein.
This document claims the benefit of the filing date of U.S. Provisional Patent Application 61/065,770 to Schlanger, et al. entitled “Alternative Energy Safety Light,” which was filed on Feb. 15, 2008, the disclosure of which is hereby incorporated herein by reference.
Number | Name | Date | Kind |
---|---|---|---|
3266015 | Pickering et al. | Aug 1966 | A |
3500378 | Pickering | Mar 1970 | A |
3696286 | Ule | Oct 1972 | A |
4175249 | Gruber | Nov 1979 | A |
4482941 | Lindner | Nov 1984 | A |
4604567 | Chetty | Aug 1986 | A |
4626983 | Harada et al. | Dec 1986 | A |
4751622 | Williams | Jun 1988 | A |
5342140 | Glass | Aug 1994 | A |
5490045 | Lindner | Feb 1996 | A |
6768047 | Chang et al. | Jul 2004 | B2 |
6914418 | Sung | Jul 2005 | B2 |
6984970 | Capel | Jan 2006 | B2 |
7030597 | Bruno et al. | Apr 2006 | B2 |
20050128736 | Frick | Jun 2005 | A1 |
Number | Date | Country | |
---|---|---|---|
61065770 | Feb 2008 | US |