Abstract: An apparatus for convenient tightening and loosening of strings such as those found in shoelaces of footwear is provided. The apparatus includes a rotating portion within a base portion. A cover portion, when operated in a first position, provides a ratchet movement that allows rotation in a tightening direction while preventing movement in a loosening direction. When the cover is moved to a second position, the ratchet mechanism disengages, and the strings can then be easily loosened.

Abstract: Embodiments of the present invention provide an apparatus for convenient tightening and loosening of strings such as those found in shoelaces of footwear. The apparatus includes a rotating portion within a base portion. A cover portion, when operated in a first position, provides a ratchet movement that allows rotation in a tightening direction while preventing movement in a loosening direction. When the cover is moved to a second position, the ratchet mechanism disengages, and the strings can then be easily loosened.

Abstract: 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.

Abstract: The present invention relates to a string adjusting device. According to the present invention, there is provided a string adjusting device, including: a base unit including a base plate, a cylindrical lower housing provided on the base plate, and stop protrusions formed to protrude from an outer surface of the lower housing; and a rotation unit including a bobbin rotatably installed inside the housing and configured such that a string is wound therearound, a rotation head connected to one end portion of the bobbin, and an engagement member formed and provided inside the rotation head to be elastically deformable and configured to be caught on the stop protrusions.

Abstract: An input device according to an exemplary embodiment of the present invention includes: a band including a contracted or extended flexible area; a sensor which detects a change of the flexible area and outputs a signal corresponding to the detected change of the flexible area; and a main body which is connected to the band and determines a cause operation for the change of the flexible area based on the signal output from the sensor, in which the flexible area includes fixed units, and connection units which connect the fixed units and are contracted or extended, and a distance between the fixed units is changed according to the cause operation.

Abstract: A training device has a joint function suitable for training various complex motions for various body parts such as an arm, a leg, a head, and a trunk for training martial arts. The training device includes: a shaft; a joint having a diameter larger than that of the shaft and disposed at one end portion of the shaft; a joint support contacting the joint and elastically supporting the joint; and a shaft support elastically supporting an outer side of the shaft at the one end portion of the shaft.