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.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a slip-resistant shoelace which can prevent knot slipping.[0003]2. Description of the Prior Art[0004]A conventional shoelace after being knotted is easy to slip when being torn by external force. A slipped shoelace brings about danger and inconvenience. To prevent the shoelaces from slipping easily, a plurality of slip-resistant shoelaces are disclosed in the prior arts such as TW M479474, TW M240854, TW 253245, and TW M337982. A solid shoelace is arranged with thick sections and thin sections (or flat sections) at intervals. If the shoelace is tied and knotted at the thin sections, the shoelace will not slip because it is blocked by the thick sections when being torn by external force. A more specific form disclosed in TW M339939 and U.S. Pat. No. 5,946,779 defines that the thin sections have greater density than the thick sections do.[0005]However, the structures mentioned above have f...

AI Technical Summary

Benefits of technology

The present invention provides a slip-resistant shoelace that prevents knot slipping and has a smooth appearance. The shoelace has interval sections that are smaller in diameter than the external tube, creating spaces for inward compression. The larger enlarged portions help prevent knots from slipping. The shoelace core is directly woven with textiles, making it easy to manufacture and aesthetically pleasing to tie. Overall, this slip-resistant shoelace provides improved durability and convenience for the user.

Problems solved by technology

A slipped shoelace brings about danger and inconvenience.

However, the structures mentioned above have following problems.

First, the shoelace has a ragged appearance due to the thick and the thin sections arranged at intervals.

Besides, manufacturing the shoelace with various diameters is difficult and time-consuming.

Manufacture of shoelace with sections of different density is even more difficult.

Even if a knot is tied on one of the thin sections, the knot may still slip since the thick sections are easily-compressed.

However, knotting the core one by one to form the protrusions is a complex procedure which is time-consuming and energy-consuming, and the size of the protrusions is limited by the size of the core; therefore, the size of the protrusions cannot be changed in accordance with users' needs.

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