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SPECIAL DOUBLE NUT FOR LOOSENESS PREVENTION
SPECIAL DOUBLE NUT FOR LOOSENESS PREVENTION
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机译：防止松懈的特殊双螺母
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摘要
PROBLEM TO BE SOLVED: To provide an improvement plan of a double nut including a looseness prevention function with an eccentric fitting structure.SOLUTION: A special double nut for loosen prevention includes upper and lower nuts 2, 3 having screw holes 21, 31 respectively, and an intermediate ring 4 arranged between the upper and lower nuts 2, 3. In the lower nut 2, a support projection part 23 having an outer peripheral surface to which the intermediate ring 4 is externally fitted is provided concentrically with the screw hole 21, and in the upper nut 3, a recess part 32 having an inner peripheral surface to which the intermediate ring 4 is internally fitted is provided concentrically with the screw hole 31. The outer peripheral surface and inner peripheral surface of the intermediate ring 4 are eccentric to each other.SELECTED DRAWING: Figure 1
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