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    • 6. 发明专利
    • Floor box device for installation of optical communication cable
    • 用于安装光通信电缆的地板盒装置
    • JPS5741604A
    • 1982-03-08
    • JP11731980
    • 1980-08-26
    • Nippon Telegr & Teleph Corp
    • CHIKASAWA TATSUFUMIMORI KENJIAZUMA TSUNETOOIKAWA TOSHIO
    • H02G3/12G02B6/00G02B6/44H02G3/18H04B10/25H04B10/2507
    • G02B6/4463
    • PURPOSE:To install an optical communication cable without breakage and degradation of transmission characteristics by using a top shaped guide member of which the side surface forms a quadratic curved surface of revolution. CONSTITUTION:A top shaped guide member 4 of which the side surface is constituted of a quadratic curved surface of revolution is provided with a disc part 5 having notches 6 in the upper part. A cap 1 of a floor box having notches 2 is provided on the 5. An arbor 7 which is the center of revolution is inserted into the hole pierced at the center of the 4, and is fixed by a set screw 3. The lower part of the 7 is inserted into a revolving bearing tube 8 to make the 4 freely rotatable. While an optical communication cable 10 from a piping 11 is being detained by plural detaining pieces (not shown) provided on the side surface of the 4, it is conducted from below the 4 to above the same along the quadratic surface of revolution.
    • 目的:通过使用侧面形成二次曲面的顶部形状的引导构件来安装光通信电缆,而不破损和降低传输特性。 构成:侧面由旋转的二次曲面构成的顶部形状的导向构件4设置有在上部具有凹口6的圆盘部5。 具有切口2的地板箱的盖1设置在该5上。作为旋转中心的心轴7插入穿过4的中心的孔中,并通过固定螺钉3固定。下部 的7被插入旋转轴承管8中以使得4自由旋转。 虽然来自管道11的光通信电缆10被设置在4的侧表面上的多个扣留件(未示出)扣留,但是它沿着二次旋转表面从4下方传导到其上方。