| 摘要 |
The present invention relates to a chalkboard sheet structure. The objective of the present invention is to provide a lightweight and humidity-resistant chalkboard, to provide a strong supporting force against a bending force applied to the chalkboard (2), and to reduce a manufacturing cost based on a simple manufacturing process by bonding and fixing two corrugated plastic sheets (34) on a steel plate (32) forming a board (24) of a chalkboard (2) with adhesive, rotating a communication hole (36) in a right angle direction with respect to the sequentially disposed corrugated sheets (34) at the same time to achieve a structure in which the steel plate intersects the corrugated sheets. Accordingly, the chalkboard sheet structure comprises: two rectangular shaped corrugated plastic sheets (34) inserted in a clip rail (28) of a support frame (20) while being bonded and fixed on the rear surface of a steel plate (32) with adhesive, wherein one corrugated sheet (34) placed on the rear surface of the steel plate (32) has a communication hole arranged horizontally, and the other corrugated sheet (34) has a communication hole arranged vertically, so the corrugated sheets (34) are installed in a twisted direction from each other by the right angular. |
