| 摘要 |
PURPOSE:To reduce the fall-off problem and defect ratio of a filament coil, by press deforming in advance the filament coil at locations where it is supported by support wires, bending the support wires to hold under pressure the deformed portions and thus to clamp the filament coil. CONSTITUTION:Two support wires 2 provided at a stem 1 are separated from each other with a predetermined spacing therebetween, the free end portion of each of the support wires 2 is bent in a shape of V, and a filament coil 3 which has been beforehand press deformed at both end portions thereof is mounted inside the folded portions. After that, the folded portions are bent further while holding the deformed portions of the coil 3 in place to pressurize the same, thereby clamping the filament coil 3 by the support wires 2. |
