| 摘要 |
<p>A ladder support guide change mechanism (90) for a venetian blind assembly machine, said mechanism comprising a movable carrier (102), first and second ladder support guiding means (92) mounted on said carrier, ladder support advancing means (98) associated with each ladder support guiding means and means (90,104,204) for indexing said movable carrier (102) from a first position, in which said first ladder support guide means is accurately located in said assembly machine to receive venetian blind slats, to a second position in which said second ladder support guide means is accurately so positioned. <IMAGE></p> |
