Patent ID: 8029173

Claim:
A structure of overhead lamp and mounting bracket including a plurality of LED lamps mounted in a main case, a lamp PCB for mounting and operating the LED lamps, a collimating lens connected to a front side of the LED lamps to reflect light at a predetermined angle, a protection board formed at the front side of the collimating lens to protect the LED lamps from contaminants, a cover connected to the front of the main case for covering the protection board and a packing material interposed between the cover and the main case, the overhead lamp and mounting bracket comprising: the main case ( 208 ) having a four point supporting system for tilting and fixing the main case, wherein the main case ( 208 ) is tilt-able with respect to a pivot point ( 222 ) and fix-able with respect to a fastening nut ( 224 ), wherein the pivot point ( 222 ) and the fastening nut ( 224 ) are integrally formed on an arc-strip located at a center of both lateral sides of the main case, a mounting unit ( 226 ) having a bolt hole ( 232 ) and an arc shaped slot ( 236 ) for passing through a thread ( 242 ) and a threaded bolt ( 250 a) to insert into the pivot point ( 222 ) and the fastening nut ( 224 ), respectively for mounting the main case ( 208 ) on a roof panel of a heavy equipment vehicle, a knob-shaped fastener ( 240 ) forming the thread ( 242 ) on a front bolt portion thereof for installing and tilting the main case ( 208 ) on the mounting unit ( 226 ), and a fastening bolt ( 250 ) positioned in the arc shaped slot for adjustably fixing an illumination angle of the lamp by tilting the main case ( 208 ) slidably along the arch-shaped slot ( 236 ), wherein the mounting unit ( 226 ) comprises: a center supporter ( 228 ) mounted on the roof panel ( 4 ) of the vehicle ( 2 ); a pair of lateral supporters ( 230 ) perpendicular to the center supporter ( 228 ) for installing the main case ( 208 ) by matching the bolt hole ( 232 ) to the pivot point ( 222 ); and a tilt calibrator ( 234 ) formed rearward of the arch-shaped slot ( 236 ) on both sides of the lateral supporters ( 230 ), wherein said center supporter ( 228 ) has a mounting bolt ( 238 ) with a male thread ( 238 a ) on the front portion and a set of fastening nuts ( 238 b ) for mounting on the roof panel ( 4 ).