US 7,574,786 B2
String fastener
Sen-Mei Cheng, Chang Hwa Hsien (Taiwan)
Assigned to Taiwan Paiho Limited, Chang Hwa Hsien (Taiwan); and Chao-Nan Chang, Chang Hwa Hsien (Taiwan)
Filed on Dec. 19, 2006, as Appl. No. 11/640,852.
Claims priority of application No. 95129256 A (TW), filed on Aug. 09, 2006.
Prior Publication US 2008/0034555 A1, Feb. 14, 2008
Int. Cl. A43C 7/00 (2006.01)
U.S. Cl. 24—712.5  [24/115 G; 24/712.2; 36/50.1] 17 Claims
OG exemplary drawing
 
1. 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.