A curtain control device, comprising:
- a stroke setting device (1), having a major body (11), a guiding groove (114) disposed along axial direction being provided on the inner wall of a hollow portion (113) of said major body (11);
- a rotor (12) being mounted within said hollow portion (113) of said major body (11);
- a first and a second grooves (121), (122) opposite to each other being provided on two end edges and encircling the peripheral wall of said rotor (12);
- two connection grooves (123) separated with each other being provided between said first and said second grooves (121), (122) for the communication therebetween, one of said two connection grooves (123) having an engagement recess (124) depressed downward;
- and a ball (13), which may be located in said first, said second and said connection grooves (121), (122), (123), and said ball (13) being provided in said guiding groove (114) of said major body (11) of said stroke setting device (1);
- a damper (2), having a damper main body (21) which is formed with an accommodation portion (211) on its one end;
- a support shaft (22) being provided in said accommodation portion (211);
- damping material (25) being provided between said support shaft (22) and said damper main body (21);
- an end cap (23) being attached to a place on said damper main body (21) corresponding to the opening of said accommodation portion (211);
- a through hole (231) being provided at the center of said end cap (23) for the penetration out of a rod body (223) of said support shaft (22);
- further, a combination member (24) being assembled at the other end of said end cap (23) opposite to the end attached to said damper main body (21);
- a curtain spindle rod (3), which is provided between said stroke setting device (1) and said damper (2), having one end thereof assembled with said major body (11) of said stroke setting device (1), and the other end with said rod body (223) of said support shaft (22) of the damper (2);
- a combination member (31) being attached to said curtain spindle rod (3);
- and a torsion element (32) being also assembled on said curtain spindle rod (3);
- a curtain spindle sleeve (4), having a hollow bore (41) for housing said stroke setting device (1), said damper (2) and said curtain spindle rod (3);
- said combination members (24), (31) of said damper (2) and said curtain spindle rod (3) being assembled with said curtain spindle sleeve (4).