The invention provides a wire, the wire can obtain the front-end load enough, and can be as much as possible to prevent the front part of twisted or bent. The wire (10) includes a coil (60), lateral has a conical coil portion (64), the conical coil portion (64) toward the core shaft (14) of the front end outer diameter decreases gradually; and the inner coil (50), the outer coil (60) surrounded by inner core shaft (14) of the front side. The tapered coil portion (64) of the outer coil (60) has a maximum outer diameter position and is more forward than the forward side, and the rear end of the inner coil (50) is connected only to the mandrel (14).
【技术实现步骤摘要】
【技术保护点】
１．一种导线，其特征在于包括：芯轴；外侧线圈，具有至少由一根单线缠绕而成的锥形线圈部，所述锥形线圈部朝向所述芯轴的前端外径逐渐减小，并且所述外侧线圈包围所述芯轴的前端侧部；内侧线圈，在所述外侧线圈内侧包围所述芯轴的所述前端侧部；前端连接部，使所述外侧线圈的前端和所述内侧线圈的前端与所述芯轴的前端连接；外侧后端连接部，使所述外侧线圈的后端与所述芯轴连接；以及内侧后端连接部，在比所述外侧线圈的所述锥形线圈部具有最大外径的位置更靠向前端一侧，使所述内侧线圈的后端仅与所述芯轴连接。
【技术特征摘要】
...
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。