Patent ID: 7574786

Claim:
A string fastener for fastening a string, comprising: a fastener body including a top; a bottom; a first side; a second side opposite to the first side; a third side; two first holes defined completely through the top to the bottom; a bar portion formed between the first holes; and two sliding tracks respectively defined in the first side and the second side, extended toward the bar portion and communicated respectively with the first holes; and two positioning units slidably and respectively held in the fastener body along the sliding tracks, and each of the positioning units comprising a positioning unit body slidably held in the fastener body along the associated sliding track; a bulge protruded downward from the positioning unit body and held in the associated first hole in the bottom of the fastener body; an opening defined in the positioning unit body; an operating portion connected to the positioning unit body outside the fastener body; an indentation defined in a position opposite to the operating portion; and a block portion formed between the opening and the indentation.