VEHICULAR LIGHTING SYSTEM

Abstract

A housing having an extrusion forming a first channel and a second channel; a lighting system in the first channel adapted to direct light away from the first channel; a mounting system in the second channel adapted to couple the extrusion to a vehicle; a first end cap including a first connector, the first end cap being coupled to a first end of the extrusion; a second end cap including a second connector, the second end cap being coupled to a second end of the extrusion; wherein the first connector and the second connector are electrically coupled to one another, and wherein the first connector and the second connector are electrically coupled to the lighting system.

Claims

1. A housing comprising: an extrusion forming a first channel and a second channel; a lighting system in the first channel adapted to direct light away from the first channel; a mounting system in the second channel adapted to couple the extrusion to a vehicle; a first end cap including a first connector, the first end cap being coupled to a first end of the extrusion; a second end cap including a second connector, the second end cap being coupled to a second end of the extrusion; wherein the first connector and the second connector are electrically coupled to one another, and wherein the first connector and the second connector are electrically coupled to the lighting system.

2. The housing of claim 1 wherein the lighting system includes a first light source and a second light source, wherein the first light source and the second light source are adapted to be independently switched on and off so that only the first light source, only the second light source or both the first light source and the second light source can be illuminated.

3. The housing of claim 2 wherein said lighting system comprises: a first reflector adapted to generate a first beam pattern; and a second reflector adapted to generate a second beam pattern; wherein said first reflector is adapted to reflect light from the first light source; and wherein said second reflector is adapted to reflect light from the second light source.

4. The housing of claim 1 wherein the first connector is coupled to a power source.

5. The housing of claim 4 wherein the second connector is connected to another lighting system in another housing.

6. The housing of claim 1 wherein said mounting system is rotatable about an axis of rotation outside said second channel over a range of at least 100 degrees.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The above and other aspects, features and advantages of several embodiments of the present invention will be more apparent from the following more particular description thereof, presented in conjunction with the following drawings.

[0012] FIG. 1 is a perspective view of the front of the light bar system.

[0013] FIG. 2 is a perspective view of the rear of the light bar system.

[0014] FIG. 3 is a side view of the light bar system.

[0015] FIG. 4 is a schematic wiring diagram of in-series connection of light bar systems.

[0016] FIG. 5 is a schematic wiring diagram for a light combination system.

[0017] Corresponding reference characters indicate corresponding components throughout the several views of the drawings. Skilled artisans will appreciate that elements in the figures are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of various embodiments of the present invention. Also, common but well-understood elements that are useful or necessary in a commercially feasible embodiment are often not depicted in order to facilitate a less obstructed view of these various embodiments of the present invention.

DETAILED DESCRIPTION

[0018] The following description is not to be taken in a limiting sense, but is made merely for the purpose of describing the general principles of exemplary embodiments. The scope of the invention should be determined with reference to the claims.

[0019] Reference throughout this specification to one embodiment, an embodiment, or similar language means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases in one embodiment, in an embodiment, and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.

[0020] Furthermore, the described features, structures, or characteristics of the invention may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth.

[0021] In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.

[0022] Referring first to FIG. 1, a perspective view of a light bar system 100 according to one embodiment of the present invention is shown. Shown is a light bar assembly 102, including a center housing 104, an adjustment track 106, a right end cap 108, a power source wiring 110, a right receptacle 112, a left end cap 114, a left receptacle 116, a front cap 118, a front lens 120, a light-emitting diode (LED) array 122, and a reflector array 124. Also shown is a mounting assembly 126, including an adjustment bracket 128, an adjustment bracket hole 130, a clevis 132, a plurality of clevis holes 134, a pivot bolt 136, a pivot nut 138, a pivot washer 140, a mounting bolt 142, a mounting washer 144, a mounting nut 146, an internal wiring system 158, a PC board, a gasket 160, and a PC board 162. The center housing 104 is a channel-shape, with the top and bottom of the channel forming the top and bottom of the light bar assembly 102. It is made of extruded metal or other suitable material. In one embodiment, the center housing 104 is approximately 2-3 inches high and 3-5 inches deep. The length of the center housing 104 varies with the embodiment of the invention, but in the preferred embodiment generally varies between 6 inches and 52 inches. The back of the center housing 104 is curved and incorporates a plurality of horizontal fins. At the top and bottom of the center housing 104 are longitudinal indentations approximately wide and deep which may be used to couple an external light cover to the light bar assembly 102. At the bottom of the back of the center housing 104, two continuous curved horizontal ridges protrude from the center housing 104, forming the adjustment track 106. The front portion of the center housing 104 is shaped to hold and support the reflector array 124, the LED array 122, front lens 120 and the internal wiring system 148. The gasket 162 is formed by machine and completely circles the outer edge of the front lens 120 where the inside facing outer portion of the front lens 120 lens meets with an continuous interior indentation of the light bar assembly 102.

[0023] The reflector array 124 size varies depending on the light bar variations. In general, there are one or more reflectors 148 in a row in the reflector array 124. FIG. 1 represents an embodiment of the invention with eight reflectors 148 in a row. Each reflector 148 has a curved conical shape and is connected at the wide end by a flat portion of the reflector array 124, similar to the construction of an egg carton. In one embodiment, there are two horizontal reflector 148 rows stacked on top of one another. FIG. 1 represents an embodiment of the invention with a single row in the reflector array 124. An LED light 150 is coupled to the PC board 160 and positioned so that the LED light 150 extends through a small hole in the narrow end of the reflector 148. The grouping of the LED lights 150 forms the LED array 122.

[0024] In front of the reflector array 124, a thin transparent front lens 120, made of polycarbonate or other suitable material, covers the reflector array 124. The front lens 120 is transparent so as not to affect the photometrics of the reflectors 148. The reflector array 124 is coupled to the PC board 160 by screws or other suitable method. The front lens 120 is coupled to the front cap 118 which frames the front lens 120 and is coupled to the top and bottom of the center housing 104, to the left end cap 114 on the left, and the right end cap 108 on the right. The reflectors 148 in the reflector array 124 may all be of the same type, for example, spot reflectors, or a combination of types of reflectors may be used. For example, the reflector array 124 may consist of a combination of flood and spot reflectors. This allows for a variety of photometric requirements to be satisfied. The right end cap 108 covers and seals the interior of the light bar assembly 102 on the right-hand side. The right end cap 108 contains a right receptacle 112 and, in one embodiment, power source wiring 110. In another embodiment, the power source wiring 110 may be removed from the right receptacle 112 and switched to the left receptacle 116. A receptacle plug 152 would be placed in the right receptacle 112 for safety and to protect the internal wiring. In another embodiment, when the power source wiring 110 is coupled to the left receptacle 116, a connecting wire 154 may be used in the right receptacle 112 to connect the light bar assembly 102 to additional light bar assemblies 102 in series. The other end of the connecting wire 154 would be connected to the receptacle of the adjacent light bar assembly 102. The left receptacle 116 works in a similar way, and may receive either power source wiring 110, connecting wiring 154, or a receptacle plug 152. The right end cap 108 is coupled to the center housing 104 with a plurality of end cap attachment screws 156. The left end cap 114 covers and seals the interior of the light bar assembly 102 on the left-hand side. The left end cap 114 also contains the left receptacle 116. The left receptacle 116 works in a similar way to the right receptacle 112, and may receive either power source wiring 110, connecting wiring 154, or a receptacle plug 152.

[0025] The mounting assembly 126 includes the adjustment bracket 128 that is coupled to the adjustment track 106 in the back of the center housing 104. The adjustment bracket 128 may be moved linearly along the entire length of the light bar assembly 102 to provide maximum adjustment. The bottom of the adjustment bracket 128 has an adjustment bracket hole 130 that is used to attach it to the clevis 132. The clevis is U-shaped, with a plurality of clevis holes 134, one in each side of the clevis. The pivot bolt 136 goes through one side of the clevis 132, through the adjustment bracket hole 130 and through the other side of the clevis 132, where is it secured with the pivot bolt washer 140 and the pivot bolt nut 138. At the bottom of the U-shaped base of the clevis, 132 a threaded mounting bolt 142 extends vertically down from the base of the clevis 132. The mounting bolt is used to mount the light bar system 100 to a support. The mounting nut 146 and mounting washer 144 are used to secure the mounting bolt 142 to the support. The adjustment bracket 128 pivots or rotates about the pivot bolt 136 location, allowing for the light bar assembly 102 to be adjusted to various angles relative to horizontal. The operation of the adjustment bracket 128 is described in more detail below. In addition, the adjustment bracket 128 may be reversed on the adjustment track 106 so that the bottom of the adjustment bracket 128 points upward. This allows for a greater range of support mounting options.

[0026] Referring next to FIG. 2, a perspective view of the light bar system 100 is shown from the rear. Shown are the center housing 104, the front cap 118, the left end cap 114, the right end cap 108, a plurality of end cap attachment screws 156, the adjustment track 106, the adjustment bracket 128, an adjustment screw 200, the clevis 132, the pivot bolt 136, the mounting bolt 142, the mounting washer 144 and mounting nut 146. In this embodiment the right receptacle 112 is shown with the power source wiring 110, and the left receptacle 116 is shown with the left receptacle plug 152.

[0027] Referring next to FIG. 3, an elevation of the right side of the light bar system 100 is shown. Shown are the front cap 118, the right end cap 108, the right receptacle 112, the power source wiring 110, the end cap adjustment screws 154, the center housing 104, a engagement block 300, the adjustment bracket 128, the adjustment bracket hole 130, the adjustment track 106, the adjustment screw 200, the clevis 132, the clevis hole 134, the pivot bolt 136, the pivot washer 140, the pivot nut 138, the mounting bolt 142, the mounting washer 144, the mounting nut 146, the plurality of pivot locking pins 302 and the plurality of pivot locking depressions 304. As described previously, the adjustment track 106 is formed by two continuous curved horizontal ridges protruding from the center housing 104. The adjustment bracket 128 fits tightly over each leg of the adjustment track 106 and extends partly into the adjustment track 106 at the open portion of the adjustment track 106. In the inside portion of the adjustment track 106, the trapezoidal engagement block 300 fits in the inside of the adjustment track 106 and is bolted to the adjustment bracket 128, locking the mounting assembly 126 in place along the adjustment track 106. When the adjustment screw 200 is loosened, the engagement block 300 separates slightly from the adjustment bracket 128, allowing the mounting assembly 126 to slide along the adjustment track 106. When the mounting assembly 126 is at the desired location, the adjustment screw 200 is tightened, causing friction between the adjustment track 106 and the adjustment bracket 128 and engagement block 300, securing the mounting assembly 126 in place.

[0028] As described above, the adjustment bracket 128 pivots relative to the clevis 132 through use of the pivot bolt 136 which passes through both the plurality of clevis holes 134 and the adjustment bracket hole 130. The pivot washer 140 has a plurality of small pivot lock pins 302 which are coupled to the inside face of the pivot washer 140. In the preferred embodiment the pivot washer 140 has two pivot lock pins 302, located on opposite sides of the hole of the pivot washer 140. The pivot lock pins 302 extend through corresponding holes in the adjacent clevis 132 side and rest in the plurality of pivot locking depressions 304 of the adjustment bracket 128. The pivot locking depressions 304 are a plurality of shallow depressions in the adjustment bracket 128 arranged in a circular pattern around the adjustment bracket hole 130. The pivot locking depressions 304 are located so that the pivot lock pins 302 may sit in differing pivot locking depressions 304 depending on the rotation of the adjustment bracket 128 relative to the clevis 132. When the pivot bolt 136 is tightened, the pivot lock pins 302 are engaged by the corresponding pivot locking depressions 304 and the angle of the light bar assembly 102 is locked. When the pivot bolt 136 is loosened, the pivot washer 140 may be moved outward so that the pivot lock pins 302 clear the pivot locking depressions 304. The adjustment bracket 128 may then be rotated relative to the clevis 132 until the pivot lock pins 302 line up with alternate pivot locking depressions 304, altering the angle of the light bar assembly 102. When the desired angle is reached, the pivot bolt 136 is tightened, locking the angle of the light bar assembly 102.

[0029] Referring next to FIG. 4, a schematic wiring diagram for in-series connecting of light bar assemblies is shown.

[0030] Referring next to FIG. 5, a schematic wiring diagram for a light combination is shown. In the embodiment where there are two rows of lighting. Each row may have a different color of LED lights 150. Instead of lighting both rows at the same time, the light combination circuit allows for one row of lights to be illuminated while the second row of light is not. This allows for different colors of light to be illuminated separately within the same light bar assembly 102.

[0031] While the invention herein disclosed has been described by means of specific embodiments, examples and applications thereof, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope of the invention set forth in the claims.