| 摘要 |
PURPOSE:To obtain a joint spring that can be set in a case so as not to be seen for outside and easily produced at a low cost by a method wherein a wire bent at the both ends thereof in different directions is clamped in a joint part of a case. CONSTITUTION:A wire 2 bent at the both ends thereof in different directions is clamped in a joint part 1 of a case. In this manner, the joint spring having a thickness as small as the single wire 2 cannot be seen outwardly when it is used in the joint part 1. The joint spring can be produced only by bending the both ends of the single wire 2 in different directions without requiring much labor at a low cost. |
