public adverfisement board

摘要

Use of the board by the present design is to install a plurality of forceps one to maintain a, and at the same time board surface, the post simply attaching promotional materials state so that the opening and closing operation of the board front see-through window can be easier than by a hydraulic shock absorber and be stably as well as to facilitate, to be made by the board with a beautiful appearance to maintain good landscape aesthetics, sunny week (4) ads to (4) posted surface (1) Advertising surface (5), established by the in the board (a), an observation window (2) that can be attached to install a plurality of tongs (11) the front of the post surface (1), covering the post face (1) upper end around the post surface (1) the hinged, and at the same time be a see-through window (2) is operating rod 31 the front end of the hydraulic shock absorber (3) which is provided on both sides published face (1) on both sides coupling the inner surface observation window (2) by a hydraulic shock absorber (3) one to maintain the opened and closed states A billboard, characterized in that.