| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a window blind operation device easily attachable to and detachable from a head box. <P>SOLUTION: A power transmission member 340 rotated integrally with a pulley 320 is provided to the pulley while being exposed to the outside of a pulley case 81. The power transmission member 340 is detachably connected to the input shafts of input bevel gears 32, 33 which are provided so as to be exposed to the outside of the head box 11. The pulley 320 and the pulley case 81 which rotatably stores and supports the pulley can be collectively removed from the head box 11 without a tool by merely removing the power transmission member 340 from the input shafts of the input bevel gears 32, 33. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
