Patent ID: 7748865

Claim:
A triangular red LED warning device comprising; a pair of red LED flashing oblique side boards; a red LED flashing base side board; a pair of supporting leg plates, each flashing oblique side board having disposed inwardly a respective LED circuit; the flashing base side board having a LED circuit with an electric power source circuit; the oblique side boards connected at a respective one end at a vertical angle; the base side board being frictionally connected at the both other ends of the oblique side boards; wherein the oblique side boards are fixed or released by respective means for connecting; wherein each oblique side board is frictionally rotated or fixed with or without a suitable force, about each axis of the means for connecting in a common connecting hole, between the oblique side boards and the base board; and each means for connecting for connection of the red LED flashing oblique side boards and the red LED flashing base side board comprises a flat head bolt, a pair of frictional washers providing a raw surface respectively, a dish like spring washer, and the raw surfaces of the both frictional washers are piled at a relation of a raw surface to raw surface contact, and firmly tightened by the means for connecting to create sufficient friction between the piled surfaces for prevention of the downward rotation of the oblique side board, by gravity.