| 摘要 |
PURPOSE:To control vibration produced in a long bolt by compressing and deforming a tubular vibration control member which is longer than an insertion hole for the bolt and inserted between the bolt and the insertion hole with a gap by screwing the bolt, to be brought into contact with the outer peripheral surface of the bolt and the inner wall surface of the insertion hole. CONSTITUTION:A stud bolt 1 is inserted in an insertion hole 4 formed in a cylinder head 2 and a cylinder block 3, so that both the cylinder head 2 and the cylinder block 3 are fastened to a crank case 5 and fixed thereto. A vibration control member 6 is inserted in the insertion hole 4. The vibration control member 6 is a metallic thin wall tubular member a little longer than the insertion hole and inserted between the stud bolt 1 and the insertion hole 4 with a gap. When the stud bolt 1 is screwed in, a slidng curved portion 7 is compressed and deformed, so that bending lines P1, P3 are brought into contact with the outer peripheral surface of the stud bolt 1 and a bending line P2 is brought into contact with the inner wall surface, whereby the vibration of the stud bolt can be controlled. |
