| 摘要 |
PURPOSE:To provide a signboard for construction work by improving the beauty of the surface of an announcement board and to improve the strength of mounting this amouncement board on a fixing frame. CONSTITUTION:Bent mounting piece parts 9 bent and formed on the rear surface side are extended from a front surface display region 10 of the announcement board 2. These bent mounting parts 2 are pressed and screwed to outer peripheral side surfaces 3a of the fixing frame 3. Then, the screwing parts do not appear on the front surface of the announcement board 2 and the beauty of the signboard 1 itself is improved. There is no possibility that the impact of falling of a projecting obstruction directly acts on the screwing parts even in such a case the announcement board 2 of the signboard 2 falls onto the obstruction from its rear side by wind, etc. Consequently, the strength of mounting the announcement board 2 to the fixing frame 3 is improved. |
