Slip-resistant shoelace

Abstract

A slip-resistant shoelace is provided. The shoelace includes an external tube and a core. The external tube is woven with textiles and formed with a cavity and has a substantially constant outer diameter. The core is disposed in the cavity and woven with textile threads including at least one first textile thread and second textile threads. The at least one first textile thread includes combining sections and interval sections arranged axially at intervals, and the second textile threads are woven and entangled with each combining sections to form an enlarged portion, wherein the outer diameter of each enlarged portion is larger than that of each interval section, and the outer diameter of each enlarged portion is smaller than the inner diameter of the external tube. Therefore, because of the enlarged portions, it can prevent knot slipping and maintain smooth appearance.

What is claimed is: 
     
         1 . A slip-resistant shoelace, including:
 an external tube, woven with textiles and formed with a cavity, the external tube having a substantially constant outer diameter; and   a core, disposed in the cavity of the external tube, the core woven with a plurality of textile threads, wherein the textile threads include at least one first textile thread and a plurality of second textile threads, the at least one first textile thread includes a plurality of combining sections and a plurality of interval sections arranged axially at intervals, and the second textile threads are woven and entangled with each of the combining sections of the at least one first textile thread to form an enlarged portion, wherein the outer diameter of each enlarged portion is larger than that of each interval section, and the outer diameter of each enlarged portion is smaller than that of the inner diameter of the external tube.   
     
     
         2 . The slip-resistant shoelace of  claim 1 , wherein each enlarged portion has two end portions on two axially corresponding ends thereof, a central portion is disposed between the two end portions, the at least one first textile thread is entangled outside the second textile threads at each end portion, and the at least one first textile thread is capsulated in and entangled by the second textile threads at the central portion. 
     
     
         3 . The slip-resistant shoelace of  claim 1 , wherein the textile threads include a plurality of the first textile threads and a plurality of the second textile threads, and the first textile threads are woven and entangled with each other first and then with the second textile threads.