Traffic signal transmitter with contrast shutter

摘要

The housing (1) of the signal transmitter has longitudinal grooves (3) on both sides for the attachment of the contrast shutter (2), into which grooves (3) the contrast shutter (2) can be engaged with its inner edges (2b). The contrast shutter (2) is composed of elastic material and at least one of its inner edges (2b) is cut free at the ends (2c, 2d) in order to permit torsion of the side wall (2a) for engagement in the groove (3) of the housing (1). <IMAGE>