| 摘要 |
An optical connector has a plug inserting port (11) opening and closing with a shutter (20), which is an inward opening type that does not require an opening operation. A torsion coil spring in which a pair of arms 32, 33 project in two directions from the coil part 31 is used as a shutter biasing spring 30 to urge the shutter 20 into the closed condition. In the closed condition, the shutter biasing spring 30 has its coil part 31 arranged towards the hole back side between the back surface of the shutter 20 and the inner wall surface of the case 10. Further, when the shutter 20 opens and lies along the inner wall surface of the case 10, both arms 32, 33 are sandwiched between the shutter 20 and the inner wall surface of the case 10, and the coil part 31 is positioned beyond the end of the shutter 20 and adjacent the inner wall surface of the case 10. In an alternative embodiment, a plate spring may be used as the shutter biasing spring. The arrangement of the shutter biasing spring enables the shutter accommodating space to be minimised. <IMAGE> |
