Patent ID: 8888346

Claim:
An illuminating shoelace device, comprising: an illuminating unit, comprising: a casing, comprising a first casing and a second casing connected to each other, the casing having a containing space therein, a first through hole, and a first opening, the first opening having a tunnel shaped structure, the tunnel shaped structure having an inside wall formed on an internal surface of the tunnel shaped structure, a fastening structure being formed on the inside wall; a plurality of screws, securing the first casing with the second casing; a circuit board, contained in the containing space; a first light emitting element, configured on the circuit board and corresponding to the first opening; and a power supply, contained in the containing space and electrically connected to the circuit board; and a light guide fiber, one end of the light guide fiber passing through the first through hole and being plugged in the first opening and being contacted and fastened by the fastening structure so as to receive the light emitted by the first light emitting element; a connector, configured on the casing and around the first opening, the connector comprising a rift extending from the first opening, an inclined surface around the first opening, and a first screw thread around the rift; and a connector sheath, configured on one end of the light guide fiber, the connector sheath therein having a second screw thread corresponding to the first screw thread and an inclined structure corresponding to the inclined surface, the connector sheath being capable of connecting with the connector by the first screw thread and second screw thread to fix the light guide fiber when the end of the light guide fiber is plugged in the first opening and fixed with the inside wall.