| 摘要 |
PURPOSE: A vibration preventive ceiling hanger device is provided to prevent twisting or damage by a high tensile steel spring. CONSTITUTION: A vibration preventive ceiling hanger device comprises a top hanger bolt(10), a bottom hanger bolt(20), a steel washer(30) and a high tensile spring(40). The top hanger bolt is inserted into a fixing hole formed in an angle(5). The top hanger bolt is fixed with a separation protection nut to the angle. The bottom hanger bolt comprises a main thread formed on the outer circumference so that an end of the bottom hanger bolt is inserted and fixed in the outer circumference. The bottom hanger bolt is fixed with the nut to a profile(3). The steel washer is fixed to the top hanger bolt and a tip in which the bottom hanger bolt is combined by welding. The high tensile spring prevents the vibration from being delivered from a hull(1) of a ship.
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