| 摘要 |
The present invention relates to a safety device of a roll blind and, more specifically, to a safety device of a roll blind which completely blocks a safety accident by separating and cutting a separation bead formed on a ball chain into two pieces when a fixed weight is added to the separation bead and easily re-installs the cut separation beads by a user and replaces a rotary body and the ball chain only in an existing roll blind and uses it and has excellent compatibility. The roll blind comprises; a rotary piece having a circular supporting plate on the rear side while installing a rotary pipe on the outer side; a rotary gear which is inserted and installed into the rotary piece and has a sprocket in which the ball chain is coupled; a cover which prevents the ball chain coupled to the sprocket from being separated to the outside; and a rotary shaft which passes through the rotary gear and the rotary piece and is fixated to the rotary piece. A ball chain coupling piece is protruding to the front side. Multiple straight holders are formed on the outer circumference surface of the ball chain coupling piece. A safety gear integrally forms a handle plate on the rear side of the ball chain coupling piece. The ball chain is coupled to the holder of the ball chain coupling piece and forms multiple balls on one line and forms a separation bead which is divided into two. The safety gear is coupled to be partially protruding to the outer side of the cover. |
