Abstract: A fastening device includes a case, a spool disposed in the case and configured for a lace to be wound therearound, a plurality of ratchet teeth inside the case, a ratchet element disposed at the case and located at one side of the ratchet teeth, and a knob disposed at the case. The ratchet element includes a ratchet arm selectively engaged with at least one of the ratchet teeth. As the ratchet arm is engaged with at least one of the ratchet teeth, the spool is prohibited to rotate in a releasing direction, and as the knob is rotated in a tensioning direction, the ratchet arm is disengaged from at least one of the ratchet teeth to allow the spool to tension the lace.

Abstract: A fixing frame which is for clamping an article includes a frame body, a lace and a rotatable fastening device. The frame body is detachably positioned on at least two sides of the article and released or retracted between a securing position and a releasing position. The article is allowed to be released when the frame body is at the releasing position, and the article is firmly connected to the frame body when the frame body is at the securing position. The lace is limitedly threaded on the frame body. The rotatable fastening device is coupled to the lace. The frame body is retracted from the releasing position to the securing position by rotating the rotatable fastening device along a fastening direction, and the frame body is released from the securing position to the releasing position by rotating the rotatable fastening device to loosen the lace.

Abstract: A fixing frame which is for clamping an article includes a frame body, a lace and a rotatable fastening device. The frame body is detachably positioned on at least two sides of the article and released or retracted between a securing position and a releasing position. The article is allowed to be released when the frame body is at the releasing position, and the article is firmly connected to the frame body when the frame body is at the securing position. The lace is limitedly threaded on the frame body. The rotatable fastening device is coupled to the lace. The frame body is retracted from the releasing position to the securing position by rotating the rotatable fastening device along a fastening direction, and the frame body is released from the securing position to the releasing position by rotating the rotatable fastening device to loosen the lace.