| 摘要 |
PROBLEM TO BE SOLVED: To provide a bolt with an energization spring for energizing pressing means, which includes pressing means and the energization spring energizing the pressing means in a direction of separating from the bolt.SOLUTION: A bolt with an energization spring includes: a screw body 2 in which a screw part 5 is formed in an outer peripheral trunk in a columnar manner, a cross sectional circle-shaped open hole 6 is formed coaxially with a center line of the screw body 2 and on the screw-in direction side of the screw part 5, and a tool installation part 7 in which a tool is installed on the screw-in direction side of the screw part 5 is formed; and an energization spring 4 that is inserted into the shank of the pressing means between a swollen part provided at the tip of pressing means 3 on the screw-in direction side of the screw body 2 and the end surface of the screw-in direction opposite side of the screw body 2, and energizes the pressing means 3 in a direction of separating from the screw body 2.SELECTED DRAWING: Figure 1 |
