POSTER BULLETIN BOARD FOR ELECTRON FOR PUBLIC OFFICERS

摘要

PROBLEM TO BE SOLVED: To save the election cost and to lessen the labor for installation of a bulletin board by forming the poster bulletin board for electron for public officers at a fabrication cost lower than heretofore.;SOLUTION: The upper and lower parts of an aluminum sheet are bent in a channel shape to increase the strength and are fixed to struts with hook bolts. Workability is enhanced by utilizing bolts in extension and both sheet surfaces are pulled closer by the force of the bolts, by which the stability of the sheet surfaces is increased. The right and left of the sheet surfaces are fitted with protective covers so as to increase the safety even when children, bicycles, etc., collide against the bulletin board, thereby, the poster bulletin board for electron for public officers improved in strength and safety is obtained.;COPYRIGHT: (C)2002,JPO