PURPOSE: To simply attach a control handle for a roll blind to a weight bar, and to prevent the control handle from shifting in the longitudinal direction of the weight bar.

CONSTITUTION: A through-hole 14 is formed in a support member 13 on which a control handle 5 is rotatably supported, and an attaching hole 12 is formed in the lower surface of the weight bar 11. A fixture 16 for attaching the support member 13 to the weight bar 11 is provided with a pair of resilient locking pieces 18 which are projected from a base plate 17. Only these locking pieces 18 can pierce through the through-hole 14, and can be fitted in and removed from the attaching hole 12. An insertion-hole 21 is formed between the locking pieces 18, and a fixing pin 23 for preventing the locking piece 18 having been inserted in the attaching hole 12, from being deformed, is fitted in the insertion hole 21.