Venetian blind

摘要

A venetian blind includes a multiplicity of horizontal slats arranged in vertically spaced relation below a head box. The head box is of a rectangular tubular construction composed of elongate support and cover bars. The support bar includes at least a front side wall and a lower wall, and the cover bar is attached to the support bar in covering relation to an open side of the support bar. The head box accommodates therein a slat tilt adjustment device for adjusting the angle of tilt of the slats.