Patent ID: 7325279

Claim:
A cord-releasing safety device for a window blind, comprising: a casing having a bottom open-end portion, a top open-end portion, and a receiving space extending from said top open-end portion to said bottom open-end portion; a damping seat inserted into said receiving space and slidable upward and downward relative to said casing, said damping seat including an upper slide portion, and a lower connecting portion connected to said upper slide portion; a limiting unit associated with said top open-end portion and said damping seat to limit upward and downward movement of said damping seat relative to said casing; an urging element disposed in said receiving space for urging said damping seat to move upward; and a coupling member connected detachably to said lower connecting portion of said damping seat and adapted to be connected with a pull cord of the window blind; wherein said upper slide portion of said damping seat has two opposite slide grooves that are elongated in a top-to-bottom direction, said limiting unit having two opposite slide elements extending slidably and respectively into said slide grooves from said casing.