| 摘要 |
PROBLEM TO BE SOLVED: To easily mount a nut to a bolt by providing a nut with a bolt through-hole of guitar shape with a play hole and a bolt locking hole continuous, and integrating two nuts of the same shape back to back so that the bolt through-holes are in positions rotated by 180 deg.. SOLUTION: A nut (a) is provided at the center with a guitar-shaped through- hole 1 continuously having a play hole 2 allowing a bolt 9 to pass through with allowance, and a locking hole 3 provided with a thread allowing the bolt 9 to be locked thereto. A nut a' of the same shape is bonded back to back so that the play holes 2, 2' and locking holes 3, 3' are in positions rotated by 180 deg. from each other and that the corner of a boundary edge 4 between the locking hole 3 and the play hole 2' has allowance for the insertion of a cutting bolt 9. The same is applied between the locking hole 3' and the play hole 2. Nut parts b, b' are placed obliquely to insert the bolt 9 through the play holes 2, 2', and upon reaching a specified position, a slide nut is placed vertically to the bolt 9 to engage the threads of the bolt 9 and locking holes 3, 3'. The nut can therefore be directly moved into an optional position to make work efficient.
|
