OPTICS UNIT FOR SIGNAL, TRAFFIC AND DISPLAY EQUIPMENT, ARRANGEMENT OF THE SAME THEREIN AND METHOD THEREFORE

摘要

A manner of mounting optical elements in the front plate (4) of an alternating traffic sign is proposed which makes possible an easily-cleaned, flat or smooth outer surface (13,14,15) and guarantees an exact alignment of all lens elements with simultaneous sealing. Therein an optics housing (1) is pressed into a hole of the front plate constricted by a stamped edge (12) and again widened by the pressing in of the lens element (2) so that the hole constriction is embedded by plastic material deformation and results in a form-fit, exact, tight and permanent connection. Additionally, a tool for the precise production of the installation holes is presented.