| 摘要 |
PROBLEM TO BE SOLVED: To prevent an optical fiber from being broken owing to the vibration or shock by making the interval between the inside edge parts of a couple of finger parts, clamping a movable optical fiber from both the sides, larger than the size obtained by multiplying the outside diameter of the optical fiber by the number of optical fibers. SOLUTION: The tip part of a movable piece 154 extends downward and a cut is formed at its lower end to form the two finger parts 157. The interval B between the two finger parts 157 is a little wider than the size obtained by multiplying the diameter of the movable optical fiber 3 by the number of the optical fibers. On the fixation side of a base 40, a through hole 46 is formed opposite the driving part of the movable optical fiber 3. The width of the through hole 46 is a little wider than the movable range A of the couple of finger parts 157 which are inserted and gaps ΔA are provided on both the sides; if the movable piece 154 overtravels, the movable piece 154 moves by the gap Δ within the elasticity range of the movable optical fiber 3 to abut against the edge of the through hole 46, thereby preventing the movable optical fiber 3 from being broken by being applied with an excessive force. |
