| 摘要 |
A frame structure of an LED(Light Emitting Diode) electric signboard is provided to dispose the electric signboard at various angles by making the plane of the outline frame in a ladder form and to exchange the electric signboard by separating a thin plate-type main frame from the outline frame. In a frame structure of an LED electric signboard, a ladder-shaped horizontal frame(120) comprises a pair of horizontal bars(121,122) installed in the front and rear sides with facing each other and an inclined bar(123) obliquely installed to connect both ends of the horizontal bars. A bent vertical frame(130) has a bent piece(131) formed by bending outward the end portion and provided with a fixing hole(132) and a reinforcing piece(140) integrated with a fan screw nut(N) and combined in the rear side of one edge to improve combining force in joining a main frame(150). The reinforcing piece comprises upper and lower reinforcing pieces(142) joined to the upper and lower parts of one edge of the vertical frame and a center reinforcing piece(144) joined in the center of one edge of the vertical frame and connected to the other side of the vertical frame, wherein a center portion of the vertical frame is extended and bent. A placing piece(152) is formed in the main frame to place and join an LED board(160). |
