| 摘要 |
Provided is an apparatus for tightening a wire capable of improving productivity and durability due to a simple structure and convenient assembly comprising: a bottom part in which an accommodating groove is formed in an upper surface; a reel part inserted to be rotated into the accommodating groove and in which a wire is selectively wound in rotation; a housing part whose lower end is fixed to the accommodating groove and in which a ratchet-type gear is formed along an inner circumference; a cam driving part inserted inside the housing part to restrain the unidirectional rotation to the ratchet-type gear, and in which a lifting guiding projection is protruding at a upward incline along the unidirectional rotation from an edge of a lifting hole formed in a center; a lifting cam part including a lifting body part elastically supported downwards, combined to be integrally rotated with the reel part by passing through the lifting hole in lowering and in which a slide projection slid along the lifting guiding projection to be lifted is protruding from an outer circumference, and an elastic wings part in which a ratchet coupling part in which the unidirectional rotation is restrained to the ratchet-type gear is equipped in an end; and a cover part combined to be rotated in the upper end of the housing part, and in which a pressing projection is protruding from a lower surface to press the slide projection in a circumferential direction in unidirectional rotation. |
