| 主权项 |
1. A venetian blind defining a transverse direction extending from a front side to a rear side of the venetian blind, comprising:
a rotation shaft rotatably supported in a head box, the head box defining a first head box side oriented toward one of the front and rear sides of the venetian blind and a second head box side oriented toward the other of the front and rear sides of the venetian blind; a plurality of ladder cords capable of tilting in response to the rotation of the rotation shaft; a plurality of slats supported in an aligned state by the ladder cords; a plurality of lift cords configured to lift and lower the slats, each lift cord being disposed at a position offset in a transverse direction from a central portion, and a plurality of lift drums capable of rotating in response to rotation of the rotation shaft, an end of each lift cord windably and unwindably connected to a respective lift drum, at least one first lift cord extending into the head box adjacent the first head box side, continuing upward along the first head box side and having an end connected to a first respective lift drum, at least one second lift cord extending into the head box adjacent the second head box side, the second lift cord then extending transversely toward the first head box side, continuing upward adjacent the first head box side, and having an end connected to a second respective lift drum so that all the lift cords extending into the head box from the first and second head box sides are wound around the lift drums in a same winding orientation. |
