| 摘要 |
A blind apparatus comprising at least two tracks having adjacent ends meeting at a corner, a rotation shaft longitudinally located relative to each track, at least one lead traveller slidably received within each track, each lead traveller being constrained to move along a path of predetermined length from an open to closed positions, a group of travellers associated with each lead traveller, the travellers being slidable within a track, each traveller having a rotatable slat shaft, each traveller being connected to a rotation shaft whereby upon rotation of the rotation shaft, the slat shaft may be rotated, longitudinal controls attachable to the lead travellers, and a flexible coupling connecting adjacent rotation shafts at the corner.
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