Patent ID: 9119496
Filing Date: 2015-09-01
Classification: A47H,E06B

Abstract:
1. A window blind, comprising: a headrail and a bottom rail; a plurality of unitary slats arranged between the headrail and the bottom rail, each of which has at least a bore and at least a locking slot, wherein the locking slot has an open end and a closed end, the closed end is defined by a surface of the unitary slat, and the open end of the locking slot is connected to the bore; at least a cord passing through the headrail and the bores of the slats, and being fastened to the bottom rail; the diameter of the cord is greater than the width of the locking slot; and the cord stays in the bore, and when the cord is pulled, the cord goes into the locking slot and is held therein, and a movement of the cord through the unitary slat is clamped, wherein the bore is an elongated bore having a long axis and a short axis, and the locking slot is in the long axis.