公开(公告)号：US20050031275A1

公开(公告)日：2005-02-10

申请号：US10900698

申请日：2004-07-27

申请人： Toku Ishii ,  Kazunori Watanabe ,  Kenji Ito

发明人： Toku Ishii ,  Kazunori Watanabe ,  Kenji Ito

IPC分类号： G02B6/44

CPC分类号： G02B6/4489

摘要： In applying an intermediate coating layer of thermoplastic resin onto the periphery of a central tensile member and applying a main coating of polyethylene resin, having continuous spiral grooves that are for accommodating optical fibers and are inverted periodically in direction along the length direction, onto the outer periphery of the abovementioned intermediate coating layer, a cooling medium is blown or made to flow with priority onto the grooves after melt discharge to form a spacer with which even though the minimum rib thickness of the ribs that define the abovementioned spiral grooves is 1.0 mm or less, the groove inclination angle α of the spacer cross section at the inversion parts is 18° or less.

摘要翻译： 将热塑性树脂的中间涂层施加到中心拉伸构件的周边上并施加聚乙烯树脂的主涂层，其具有用于容纳光纤的连续的螺旋槽并沿着长度方向在周向方向反向到外部 在上述中间涂层的外周，冷却介质在熔融排放之后被优先喷射或制成流动到槽上以形成间隔件，即使限定上述螺旋槽的肋的最小肋厚度为1.0mm， 反转部分的间隔物横截面的槽倾角α为18°以下。