| 摘要 |
PURPOSE:To shorten the absolute length of a cord and facilitate rewiring operation by extending number of bundled electric wires or fiber cords up and down, and right and left nearly in the center of unit and connecting them to respective connection terminals. CONSTITUTION:The unit 1 is divided into four right and left, and upper and lower connection terminal areas A-D centering around an extension part O, where bord bundles 3 are divided into four every cords 3a to be connected to the respective areas. Numbers of bundles wires 3b are extended toward the four areas at the center part of the unit 1, and one of bundled wires 3b among four divisions are connected to individual connection terminal 2 in, for example, the area A. Consequently, the cord length necessary for optional rewiring is about (L/2+W/2), where L is the height of the unit 1 and W is the width; the absolute length is reduced to half. Further, the maximum extra length difference is also recuded to half and the treatment length of the extra length difference becomes short, so the reconnection operability is improved. |
