Abstract: A drive gear unit is provided for tilting vertically orientated slats of a vertical blind system. The unit includes a frame and a connection element for connecting the frame to a tubular support rail for a vertical blind system. The unit further includes a wand drive member having a shaft and a first spur gear wheel provided on the shaft so that the shaft for operative connection to a wand, the first spur gear having teeth which extend radially outwardly from a central hub. A rod locating member is associated with the frame and has a passage for locatingly receiving the vertical blind drive rod. A rod drive member has a rod connecting part adapted to be operatively joined to the vertical blind drive rod, and further has a second spur gear wheel joined to the rod connecting part. The second spur gear wheel has teeth which extend radially outwardly from a central hub. The first spur gear wheel and the second spur gear wheel are in operative mesh.

Abstract: A support hook for a vertical blind suspension unit which includes a shaft attachable or attached to a caller member for a vertical blind suspension unit; a hook formation provided at one end of the shaft, the hook formation including a first part extending away from the shaft at an angle thereto, and a second part extending away from the first part to define a gap between the second part and the shaft; and a bearing support surface on the first part in the gap for supposing a slat element, the bearing support surface having a peak between its ends.

Abstract: A vertical blind assembly, including a minimum number of parts, has a carrier member supporting a circular gear rack driven by a drive rod. The gear rack can be assembled in any position in the carrier member and on rotation of the rod will be rotated to its end position. On further rotation of the rod the ends of the rack merely deflects to provide a clutch effect. Thereby misaligned slats can be easily aligned.