Patent number 8997314 is assigned to Nifco Inc. (Yokohama-shi, Kanagawa, JP).
The following quote was obtained by the news editors from the background information supplied by the inventors: “There is a fastening tool for a string body that is generally called a cord lock. The fastening tool includes a female member and a male member having through-holes through which the string body is inserted, and an urging device urging the male member in a direction in which the male member is removed from the female member. When a push-in operation for the male member is stopped by the urging force from an urging device, the male member is moved from a non-fastening position through which the string body is inserted without frictions in the through-hole of the female member and the through-hole of the male member or with small frictions therein, and the fastening tool is fastened to the string body with the through-hole of the female member and the through-hole of the male member that are displaced from each other. However, when the fastening tool, for example, is fastened to a drawstring of an opening of a glove serving as a fitting object, a push-in operation for the male member may not be easily performed by the other hand with a glove.(…)
via NIFCO : Patent Issued for Fastening Tool for String Body | 4-Traders.