Patent ID: 7311134
Filing Date: 2007-12-25
Classification: E06B

Abstract:
1. A pulling cord winding apparatus for window shades, comprising; an upper cap and a lower seat that are coupled together; two elastic take-up reels corresponding to holding struts located in a center housing compartment formed on the lower seat; two elastic coils held in the elastic take-up reels having two ends latched on the elastic take-up reels; a brake member coupled on a post located on one side of the lower seat; and a push rod pressing the brake member; wherein the push rod is depressible to move the brake member to escape and allow the elastic take-tip reels to form a rotating and braking condition to allow the two elastic coils to retract or extend thereby to extend or retract a window shade; and wherein the brake member has two arched pressing plates on two sides that are extended outwards to form respectively a cord pressing member, the cord pressing member having second teeth on one side to engage with first tooth formed on two cord clamping members on two outer side of the housing compartment of the lower seat, the brake member having the jutting member on a front end which has a housing cavity, and a slot in the center to couple with the post.