초록 ▼

A lift control device for a roller shade includes a support rod having one end containing an insert socket, a spring mounted on the support rod, a roller cap rotatably mounted on the support rod and containing a retaining opening to secure the spring therein such that the spring is rotated by the ro

A lift control device for a roller shade includes a support rod having one end containing an insert socket, a spring mounted on the support rod, a roller cap rotatably mounted on the support rod and containing a retaining opening to secure the spring therein such that the spring is rotated by the roller cap, and a follower spool secured on the roller cap to rotate therewith.

대표청구항 ▼

[ What is claimed is:] [1.] A lift control device for a roller shade comprising:a support rod (11) with one end containing an insert socket (112);a spring (18) mounted on said support rod (11);a roller cap (12) rotatably mounted on said support rod (11) and containing a retaining opening (122) to se

[ What is claimed is:] [1.] A lift control device for a roller shade comprising:a support rod (11) with one end containing an insert socket (112);a spring (18) mounted on said support rod (11);a roller cap (12) rotatably mounted on said support rod (11) and containing a retaining opening (122) to secure said spring (18) in the retaining opening (122) and a chain retaining wheel (124) mounted on one end of the supporting rod (11);a follower spool (16) secured on said roller cap (12) to rotate with the cap (12);a chain (20) secured to said chain retaining wheel (124) to rotate said chain retaining wheel (124); anda side cover (14) rotatably receiving said chain retaining wheel (124) of said roller cap (12) in said side cover (14), and containing a chain outlet (142) to allow passage of said chain (20) and an axial hole (140) in said side cover (14);wherein said axial hole (140) in said side cover (14) contains an arcuate slot (146) defined in the periphery of said axial hole (140), and said annular shoulder (110) includes a boss (111) movably received in said arcuate slot (146);said support rod (11) extends through said axial hole (140) and includes an annular shoulder (110) formed on the end with the socket (112) and secured in said axial hole (140).