| 摘要 |
A protecting apparatus of a coupling unit of arm tie lack bands is provided to improve durability of the arm tie lack band by delaying corrosion of the bolt-coupling unit of the arm tie lack band. A protecting apparatus of a coupling unit of arm tie lack bands(30,40) includes arc-shaped grooves(52a,62a), a bolt grip unit(54), screw holes(55,56,66), lock bolts(80,82,84,86), and knobs(80n,82n,84n,86n). The arc-shaped grooves(52a,62a) are formed at support adhering surfaces(52,62) formed at rectangular shaped rubber covers(50,60) covering the coupling unit of the arm tie lack bands(30,40), and insert the arm tie lack bands(30,40). The bolt grip unit(54) is C-shaped, formed inside the rubber covers(50,60), and hung at a right angle on clamp bolts(70,72) exposed between the arm tie lack bands(30,40). The screw holes(55,56,66) are placed at the same center line with the clamp bolts(70,72) at right/left sides of the rubber covers(50,60). The lock bolts(80,82,84,86) have a hollow unit(80a) hung on bolt head units(70h,72h) and nut units(74,76), and are coupled at the screw holes(55,56,66). The knobs(80n,82n,84n,86n) are formed at external cross sections of the lock bolts(80,82,84,86). |
