US Patent 10433602 Strap fastening device

A string fastening device which may be used for easily winding and fastening strings provided in shoes, bags, clothes, or the like is provided. The string fastening device includes a base; a fixation member coupled to the base to maintain state in which the bobbin is stored in the base; a rotational member coupled to the fixation member and rotating the bobbin; and a string suspension member provided in the bobbin and fixing a string.