MXPA99008218A - Modular construction for lighting accessories - Google Patents

Abstract

The present invention relates to a lighting fixture characterized in that it comprises a mounting shank, a rotating mounting bracket mounted on the lower end of the mounting stem, a lamp support member secured to the front end of the mounting bracket, a cover secured at its upper end to the mounting bracket and extending rearwardly of the lamp support member, and a lamp holder inside the cover and secured to the mounting bracket, the lamp holder includes an opening axially aligned with the lamp holder and includes a bayonet mount provided around its perimeter to receive a bayonet mount coupling a lamp holder

Description

MODULAR CONSTRUCTION FOR VA LIGHTING ACCESSORIES DESCRIPTION OF THE INVENTION The present invention is generally related to lighting fixtures, and more particularly with track lighting fixtures that can be easily accommodated in different types of light sources having different configurations and styles. and which are capable of producing a variety of different lighting effects. The street lighting fixtures are being widely used in residences and commercial institutions. In a typical track lighting fixture, a track is secured within the roof and a mounting rod is secured by a track adapter, and extend down the track. A lighting fixture is mounted to the lower end of the rod on a rotating mechanism and a lamp surrounded by a lamp housing or cover is mounted on a socket inside the fixture. The angular orientation of the lamp housing relative to the track mounting rod can be adjusted or directed at the time of installation of the fixture to produce the desired lighting pattern. However, known track lighting fixtures are limited in their ability to accommodate a wide variety of lamp covers, thereby limiting the variety of cover styles that may be employed, as well as limiting the variety of effects of lighting that can be produced. The known track lighting fixtures are very often capable of operating with only a limited number of types of light sources; Many of the known accessories, for example, are not capable of operating with certain types of high intensity light sources. It is also difficult in known track lighting fixtures to redirect or redirect the fixture after its initial installation without requiring an individual to climb on a chair or ladder to reach and move the fixture, which can lead to an accident. It is an object of the present invention to provide a track lighting fixture with which a number of different lamp fasteners can be assembled from a minimum number of components. It is another related object of the invention to provide a track lighting fixture which can accommodate a variety of lamp fasteners of different configurations and shapes, and which can operate with different light sources including high intensity discharge lamps. It is another object of the present invention to provide a track lighting fixture which can be adjusted or redirected easily and safely.

Up to this point, the track lighting fixture of the invention includes a receptacle that can be used with a wide variety of lamp covers of different configurations and sizes. The accessory includes an L-shaped clamp adapted to be pivotably mounted by means of a rod and a track adapter to the track. The fixture also includes a lamp socket therein and an end entry partition screen having a bracket that includes a bayonet mount that receives a mating bayonet mount at the mounting end of the lamp cover. Various shapes, sizes and colors of lamp cover can be mounted to the accessory of the invention by inserting the bayonet mount of the lamp cover into the bayonet mount of the partition and rotating the cover of the lamp through a specified angle with respect to the fixture holder, thereby locking the lamp cover securely to the fixture. In another aspect of the invention, an opening is provided at the opposite end of the L-shaped clamp through which the end of a hand-held post can be inserted to hold the fitting, so that by manipulating the post the The angle and horizontal position of the attachment can be adjusted exactly by an individual from the floor without the need for the individual to risk an injury by standing on a chair or ladder. In another aspect of the present invention, a cover or fastener of the reactor can be secured to the fixture clamp to allow a reactor or transformer to be electrically connected to the fixture lamp socket to provide the operating voltage and current to the light source mounted inside the fixture. he. Mounting a transformer or reactor in this manner allows the accessory to operate with a variety of different light sources, which includes incandescent, fluorescent and high intensity discharge lamps. BRIEF DESCRIPTION OF THE DRAWINGS To achieve the foregoing, and other objects that may appear later, the present invention relates to a track lighting fixture substantially as defined in the appended claims and as described in the following detailed description of an embodiment preferred combined with the accompanying drawings, in which: Figure 1 is a perspective view of a track lighting fixture according to an embodiment of the invention; Figure 2 is a perspective view of the track lighting fixture of the invention in its assembled condition, and illustrating in dotted lines how the fixture can be redirected or repositioned; Figure 3 is a schematic side elevational view, partially in cross section, of the track lighting fixture of Figure 1; Figure 4 is an elevation view as seen in the direction of arrows 4-4 in Figure 3; Figure 5 is an elevational view, partly in cross section, of the assembled track lighting fixture of the invention; and Figure 6 is a perspective view illustrating the manner in which a reactor fastener can be secured to the track lighting fixture of the invention. In the embodiment of the invention shown in Figure 1, a generally designated track lighting fixture 10 includes a U-shaped housing or housing. 12 fixed at its upper end to a clamp in the form of L 14. Along with the bracket 14 is a vertical mounting bracket 16, which is pivotably mounted by means of a pin 18 to the lower end of a mounting rod 20. A guide adapter 22 including an electrical contact 24 is secured to the upper end of the rod 20 and inserted and mounted to a roof track 26 (Figure 2) by operating a hook lever arm 28 in a conventional manner to mechanically secure the accessory 10 to the roof track and to make the required electrical connection between the accessory and the track power line. As best seen in Figure 3, housing 12 includes a rear wall 30 having one. opening 32 formed centrally therein. A U-shaped entry partition or screen support 34 is secured at its upper end to the lower end of the bracket 14 by any suitable means such as a screw 36. A mounting plate 38 is secured to the transverse wall 40 of the clamp 14, by means of a screw 49. The mounting plate 38 includes a vertical wall 42 that extends downwardly within the interior of the housing 12. A threaded lamp socket 44 is mounted at its lower end to the wall 42 and is supported with it. A retaining spring 46, which retains the cover 12 in the bracket 14, includes an arm 48 interposed between the transverse wall 50 of the mounting plate 38 and the transverse wall 40 of the mounting bracket 14. The retaining spring 46 it is also secured to the wall 40 of the bracket 14 by a screw 49. A retaining spring arm 52 extends downwardly and engages the bottom surface of the wall 30 of the cover 12. The arm 52 includes a finger 54 which it extends through the opening 32 and engages the wall 30 there. The display support 34 includes a lower circular flange 35 which supports the front end of the housing 12, and a circular opening 56 through which the threaded base 58 of the lamp 60 passes to engage the threaded inner surface and the socket 44. As best seen in Figures 3 and 6, a female bayonet receptacle 62 is formed around the circumference of the screen support opening 56. The inner end of a lamp cover or screen 64 is configured with a mating bayonet mount 66, which is received in the opening 56 of the screen support 34, and is rotated into the bayonet receptacle 62 through an angle, preferably at approximately 30 °, thereby securely locks the cover 64 of the open end of the accessory. Lamp covers of various sizes, shapes and colors having a bayonet mount at their insertion end can similarly be accommodated within the fitting 10 by simply inserting and pulling the bayonet mount of the cover into the open end of the fitting so that the The bayonet mount of the cover tightly engages the bayonet receptacle of the fixture. In addition, filters of various colors and textures (not shown) can be mounted and secured to the outer end of the cover 64 to achieve a variety of color combinations to meet the requirements of the lighting designer. As will be described in detail below with reference to Figure 6, a pair of holes are provided in the fitting housing to receive cables from auxiliary devices such as a transformer or reactor, to provide the level of current and voltage required to operate lamps as HID, low voltage and fluorescent lamps. Referring to Figures 3 and 4, the back wall 68 of the bracket 14 includes an off-center opening 70. As best seen in Figure 2, the purpose of this opening is to allow the accessory 10, after it has been secured to the track and placed in a desired angular relationship with the track, it can be easily redirected or readjusted. To redirect the accessory, as shown in Figure 2, a surface anti-scratch rubber tip 72 attached to the upper end of a long pole 74, which is held by a person who wishes to redirect the accessory, is passed through the opening 60 for coupling the rear wall of the bracket 14. Movement of the post 74 after this engagement causes the accessory 10 to pivot or rotate about the pin 18 in a rotary assembly 16, thereby causing the accessory 10 to be redirected, as in the position shown in dotted lines in Figure 2.

Figure 6 illustrates the manner in which a cover 70 can be mounted to the asory 10 to support a reactor or transformer that provides the proper mounting and operating current to the lamp in the asory 10. As shown in Figure 6, the cover 70 can house or assemble a transformer or reactor 80 depending on the type of lamp in the fitting. The cover 70 includes a side wall 72 in which grooves are formed. The mounting plates 76 that can be secured to, or extend from the wall 40 of the bracket 14 extend through slots 74 within the interior of the cover 70 where they can be compressed, for example, to secure the cover 70 to the plates 76 and thus asory 10. Cables 78 of reactor 80 pass * through aligned openings 82, 84 in cover 70 of housing 12, respectively. Two of these cables make electrical contact with the socket of the lamp 44 inside the fitting, to provide the required voltage and operating current for the lamp, and the other two wires extend through an opening 86 in the clamp 14 for making electrical contact with the track adapter 22, for which to receive the AC supply voltage. The cover 70 can also be used to assemble the other electrical components that can provide control of the voltage and / or current applied to the lamp within the fixture such as switches, dimmers and light level sensors, which can, depending on the light level of the lamp. detected environment, automatically turn on the light or turn it off. It will be appreciated from the foregoing description of a preferred embodiment that the lighting fixture of the present invention is capable of receiving a wide variety of lighting sources and covers, and can also be easily redirected without requiring the individual to stand in a ladder or chair. It will also be appreciated that although the asory of the invention has been described above with respect to a currently preferred embodiment, modifications may be made thereto without necessarily departing from the spirit and scope of the invention.

Claims (3)

1. A lighting fixture characterized in that it comprises a mounting rod, a mounting bracket pivotally mounted to the lower end of the mounting rod, a lamp support member secured to the front end of the mounting bracket, a cover secured to its upper end to the mounting bracket and extending rearwardly of the lamp support member, and a lamp socket inside the cover has secured to the mounting bracket, such a lamp holder includes an opening axially aligned with the socket of lamp and including a bayonet mount provided inside its perimeter to receive a bayonet mount coupling the lamp holder. The lighting fixture according to claim 1, characterized in that the mounting bracket further includes an arm extending downwardly from its rear end having an opening therethrough to receive the end of a post, thereby The attachment can be redirected by the movement of the pole when its end is received within the opening. The accessory according to claim 1, further characterized by comprising a reactor fastener or transformer secured to the mounting bracket for fastening a transformer reactor to provide the operating current and voltage to a lamp contained within the lamp socket.