专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP5170038B2 Line 引方 method of optical fiber 有权
公开(公告)号：JP5170038B2
公开(公告)日：2013-03-27
申请号：JP2009196873
申请日：2009-08-27
申请人：住友電気工業株式会社
发明人：徹山田
IPC分类号： C03B37/027
CPC分类号： C03B37/02736 , C03B37/029 , C03B2205/80
摘要： PROBLEM TO BE SOLVED: To provide a method for drawing an optical fiber by which a high-quality optical fiber can be obtained by suppressing the variation in outside diameter, and the cost is reduced by decreasing the consumption of an inert gas. SOLUTION: An optical fiber drawing furnace 10 includes: a drawing furnace 11 housing an optical fiber preform 1 to be freely movable vertically; a plurality of partition plates 12-16 movable along a dummy rod 26 in the drawing furnace 11; a heater 17 for heating the optical fiber preform 1; a gas supply means 18 for supplying the inert gas into the drawing furnace 11; and a furnace internal pressure measuring instrument 20 for measuring the internal pressure of the drawing furnace 11. The quantity of the inert gas to be supplied by a gas supply means 18 is gradually reduced with the reduction of the volume in the drawing furnace 11 by being partitioned by the partition plates 12-16 by a control means 21 so that the pressure of the drawing furnace 11 is kept constant according to the measured value by the furnace internal pressure measuring instrument 20. COPYRIGHT: (C)2011,JPO&INPIT

2. 发明专利

JP2013010657A Seal structure for optical fiber drawing furnace 审中-公开
标题翻译：光纤绘图炉的密封结构
公开(公告)号：JP2013010657A
公开(公告)日：2013-01-17
申请号：JP2011143769
申请日：2011-06-29
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社
发明人： HAYAKAWA MASATOSHI , ENOMOTO TADASHI , YAMAZAKI TAKU , OKAZAKI IWAO
IPC分类号： C03B37/029
CPC分类号： C03B37/029 , C03B2205/80
摘要： PROBLEM TO BE SOLVED: To provide a seal structure that can seal a gap created between an upper end opening or an optical fiber drawing furnace and an optical fiber preform by a simple structure even when the diameter variation of the optical fiber preform is large.SOLUTION: The seal structure includes: a flexible seal member 21 arranged so as to abut on the side surface of the optical fiber preform 1; and a plurality of pressing mechanisms (members 22-28) for independently pressing the seal member 21 from each of equally divided directions in the multiple circumferential directions of the circumference of the optical fiber preform 1. The pressing mechanisms (members 22-28) convert gravity into horizontal force and obtain pressing force to the seal member 21.
摘要翻译：要解决的问题：提供一种密封结构，其可以通过简单的结构密封在上端开口或光纤拉丝炉和光纤预制件之间产生的间隙，即使当光纤预制棒的直径变化为大。解决方案：密封结构包括：柔性密封构件21，其布置成邻接光纤预制棒1的侧表面; 以及用于在光纤预制棒1的圆周的多个圆周方向上从等分方向上分别按压密封构件21的多个按压机构（构件22-28）。按压机构（构件22-28）将重力进入水平力并获得对密封构件21的压力。版权所有：（C）2013，JPO＆INPIT

3. 发明专利

JP2010173895A Device for manufacturing optical fiber and method for manufacturing optical fiber 有权
标题翻译：用于制造光纤的装置和用于制造光纤的方法
公开(公告)号：JP2010173895A
公开(公告)日：2010-08-12
申请号：JP2009018539
申请日：2009-01-29
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： NUNOME TOMOHIRO
IPC分类号： C03B37/029 , G02B6/00
CPC分类号： C03B37/02736 , C03B37/029 , C03B2205/80
摘要： PROBLEM TO BE SOLVED: To stabilize a fiber diameter without receiving an influence of an outside diameter reduction part existing at a junction of a quartz glass pipe for an optical fiber and a dummy quartz pipe when the optical fiber is drawn. SOLUTION: A sealing mechanism arranged on the upper surface of a spinning furnace is provided with at least three steps of sealing members along the inserting direction of an optical fiber preform, and when a distance in the longitudinal direction of a reduction part of an outer diameter existing in the vicinity of the junction of the optical fiber preform and the dummy quartz pipe is set to A and a distance between sealing members most apart in the longitudinal direction is set to B, the device is set so as to satisfy the relational expression of B≥A. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在拉伸光纤时，为了稳定纤维直径而不受到存在于用于光纤的石英玻璃管和虚拟石英管的接合部处的外径减小部分的影响。解决方案：设置在旋转炉的上表面上的密封机构沿着光纤预制棒的插入方向设置有至少三个密封构件的台阶，并且当沿着光纤预制件的缩小部分的纵向距离存在于光纤预制件和虚拟石英管的接合部附近的外径设定为A，将长度方向最大间隔的密封构件之间的距离设定为B，将该装置设定为满足 B≥A的关系表达。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2010132505A Optical fiber production device and method for producing optical fiber 有权
标题翻译：光纤生产设备和用于生产光纤的方法
公开(公告)号：JP2010132505A
公开(公告)日：2010-06-17
申请号：JP2008311219
申请日：2008-12-05
申请人： Fujikura Ltd , 株式会社フジクラ
发明人： NUNOME TOMOHIRO
IPC分类号： C03B37/029 , G02B6/00
CPC分类号： C03B37/029 , C03B2205/80
摘要： PROBLEM TO BE SOLVED: To provide a technique where, even in the case there is a change in the external diameter of an optical fiber preform accompanying drawing, the sealability of the part to be inserted into a spinning furnace can be maintained to a sufficient state, thus the concentration of a gas in the spinning furnace is controlled to a fixed range, and a fiber diameter can be stabilized. SOLUTION: In the optical fiber production device 100, the edge parts of the spinning furnace 3 having a furnace core pipe 2 into which an optical fiber preform F is inserted at the inside is provided with a sealing mechanism S having ring-shaped sealing members sealing the optical fiber preform F, and, as the sealing members, slit-fitted carbon sheets 21 having inner circumferential side slits formed so as to deeply cut from the inner circumferential side thereof and outer circumferential side slits formed so as to deeply cut from the outer circumferential side are used. The method for producing an optical fiber uses the same. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种技术，即使在随附的光纤预制棒的外径发生变化的情况下，也可以将插入到纺丝炉中的部件的密封性保持为足够的状态，因此将纺丝炉中的气体浓度控制在一定范围内，并且可以使纤维直径稳定。解决方案：在光纤生产装置100中，具有在其内部插入光纤预制件F的炉芯管2的纺丝炉3的边缘部分设置有密封机构S，该密封机构S具有环形密封构件密封光纤预制件F，并且作为密封构件，具有形成为从内周侧形成深度切割的内周侧狭缝的狭缝安装碳片21和形成为深切割的外周侧狭缝使用从外周侧。光纤的制造方法也可以使用。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2004161545A Method and apparatus for drawing optical fiber 审中-公开
标题翻译：绘制光纤的方法和装置
公开(公告)号：JP2004161545A
公开(公告)日：2004-06-10
申请号：JP2002329914
申请日：2002-11-13
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社
发明人： KUWABARA KAZUYA , CHIGUSA YOSHIKI
IPC分类号： G02B6/00 , C03B37/025 , C03B37/027 , C03B37/029
CPC分类号： C03B37/029 , C03B37/0253 , C03B2205/10 , C03B2205/40 , C03B2205/72 , C03B2205/80 , C03B2205/81 , C03B2205/82 , C03B2205/83
摘要： PROBLEM TO BE SOLVED: To provide a method and an apparatus for drawing an optical fiber, by which gas seal drawing can be performed stably. SOLUTION: When the optical fiber 40b is manufactured by blowing a gas 15 to an optical fiber preform 30, at the same time, sealing the inside of a drawing furnace 20 by seal rings 14U, 14L provided at the upper part and the lower part of the drawing furnace 20, respectively, and heating and melting the tip end part of the optical fiber preform 30 while introducing the optical fiber preform 30 into the drawing furnace 20, the gas 15 is blown while changing the inner diameter of the upper seal ring 14U according to the outer diameter of the optical fiber preform 30 fed into the drawing furnace 20. Thereby, it is possible to stably perform drawing because the gap between the optical fiber preform 30 and the upper seal ring 14U can be kept constant even when the outer diameter of the optical fiber preform 30 changes. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种用于拉伸光纤的方法和装置，通过该光纤可以稳定地进行气体密封拉伸。解决方案：当光纤40b通过将气体15吹到光纤预制棒30而制造时，同时通过设置在上部的密封环14U，14L密封拉丝炉20的内部，分别在拉丝炉20的下部加热熔化光纤预制件30的前端部，同时将光纤预制件30引入拉拔炉20中，同时改变上部的内径密封环14U根据供给到拉拔炉20的光纤预成型件30的外径。由此，能够稳定地进行拉伸，因为光纤预制棒30与上密封环14U之间的间隙能够保持恒定当光纤预制棒30的外径变化时。版权所有（C）2004，JPO

6. 发明专利

JP2017171549A 光ファイバプリフォームの絞り加工方法及び加工装置审中-公开
公开(公告)号：JP2017171549A
公开(公告)日：2017-09-28
申请号：JP2016061252
申请日：2016-03-25
申请人：信越化学工業株式会社
发明人：乙坂哲也
IPC分类号： C03B37/012
CPC分类号： C03B37/0253 , C03B37/02736 , C03B37/029 , C03B37/032 , C03B2205/10 , C03B2205/80 , C03B2205/82 , C03B2205/90 , C03B2205/96 , Y02P40/57
摘要：【課題】光ファイバ母材もしくは光ファイバプリフォームを加熱しつつ、被加熱部を牽引離間させて絞り形状を形成し、非円率の小さな絞り部を形成することのできる光ファイバプリフォームの絞り加工方法及び加工装置を提供する。【解決手段】光ファイバ母材もしくは光ファイバプリフォームの所定の位置を加熱し牽引して絞り形状を形成し口出し部を形成する絞り加工方法において、該光ファイバ母材もしくは光ファイバプリフォームの周辺に導入する雰囲気ガスを、該光ファイバ母材もしくは光ファイバプリフォームの軸を中心として回転するように導入することを特徴とする。【選択図】図6

7. 发明专利

JP5986540B2 光ファイバ素線の製造装置および製造方法有权
标题翻译：用于制造光纤的制造装置及方法
公开(公告)号：JP5986540B2
公开(公告)日：2016-09-06
申请号：JP2013131904
申请日：2013-06-24
申请人：株式会社フジクラ
发明人：岡田健志
IPC分类号： G02B6/44 , G02B6/02 , C03B37/027
CPC分类号： C03B37/02736 , C03B37/029 , C03C25/1055 , C03C25/12 , C03B2205/80 , Y02P40/57

8. 发明专利

JP5768484B2 耐熱ばね及びそれを用いた光ファイバ用線引炉のシール構造有权
标题翻译：使用相同的耐热弹簧和光纤线路拉丝炉的密封结构
公开(公告)号：JP5768484B2
公开(公告)日：2015-08-26
申请号：JP2011106784
申请日：2011-05-12
申请人：住友電気工業株式会社
发明人：山崎卓 , 榎本正 , 岡崎巌 , 早川正敏
IPC分类号： F16F1/02 , F16F1/26 , F16J15/06 , C03B37/029
CPC分类号： C03B37/029 , C03B2205/80

9. 发明专利

JP2013151393A Optical fiber drawing furnace and drawing method 审中-公开
标题翻译：光纤绘图炉和绘图方法
公开(公告)号：JP2013151393A
公开(公告)日：2013-08-08
申请号：JP2012013613
申请日：2012-01-26
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社
发明人： OKAZAKI IWAO , ENOMOTO TADASHI , YAMAZAKI TAKU , HAYAKAWA MASATOSHI , SHIOZAKI MANABU , KAMINOYAMA NORIHIRO , UCHINO FUMITAKA
IPC分类号： C03B37/029
CPC分类号： C03B37/029 , C03B2205/80
摘要： PROBLEM TO BE SOLVED: To provide an optical fiber drawing furnace and a drawing method that are configured such that the temperature difference near the shoulder part of a glass preform is increased to suppress variations in in-furnace temperature and in-furnace pressure, thereby reducing changes in outer diameter of an optical fiber.SOLUTION: A drawing furnace is configured to include: a heating furnace that heats an optical fiber glass preform 11 connected to a dummy rod 13; and an upper chamber 20 that is provided at the upper part of the heating furnace and in which a part of the dummy rod and the optical fiber glass preform 11 including the connected part 14 with the dummy rod are stored. In the optical fiber drawing using the drawing furnace, an optical fiber is drawn by using quartz glass, which transmits radiation light from the heating furnace and the optical fiber glass preform, for the upper chamber 20. In addition, energy-saving can be achieved by reflecting the radiation light to the side of the glass preform 11 while covering the outside of the upper chamber 20 with a reflector that reflects the radiation light.
摘要翻译：要解决的问题：提供一种配置为使得玻璃预制件的肩部附近的温差增加以抑制炉内温度和炉内压力的变化的光纤拉丝炉和拉拔方法，从而减少光纤的外径变化。解决方案：拉丝炉构造为包括：加热炉，其加热连接到虚拟棒13的光纤玻璃预制棒11; 以及设置在加热炉的上部并且其中包含具有虚拟棒的连接部14的虚拟棒和光纤玻璃预制棒11的一部分的上室20被存储。在使用拉丝炉的光纤拉伸中，通过使用石英玻璃来吸收光纤，该石英玻璃将来自加热炉和光纤玻璃预制棒的辐射光用于上部室20.另外，可以实现节能通过将辐射光反射到玻璃预制件11的侧面，同时用反射辐射光的反射器覆盖上室20的外部。

10. 发明专利

JP2012236742A Heat resistant spring, and sealing structure for optical fiber drawing furnace using the same 有权
标题翻译：使用它的光纤绘图炉的耐热弹簧和密封结构
公开(公告)号：JP2012236742A
公开(公告)日：2012-12-06
申请号：JP2011106784
申请日：2011-05-12
申请人： Sumitomo Electric Ind Ltd , 住友電気工業株式会社
发明人： YAMAZAKI TAKU , ENOMOTO TADASHI , OKAZAKI IWAO , HAYAKAWA MASATOSHI
IPC分类号： C03B37/029 , F16F1/02 , F16F1/26 , F16J15/06
CPC分类号： C03B37/029 , C03B2205/80
摘要： PROBLEM TO BE SOLVED: To provide a heat resistant spring capable of sealing by a simple structure, a gap generated between an upper end opening portion of an optical fiber drawing furnace and an optical fiber preform, even in the case of an optical fiber preform having a large diameter fluctuation.SOLUTION: This heat resistant spring 26 is used for sealing the gap generated between the upper end opening portion of the optical fiber drawing furnace and the optical fiber preform inserted therefrom. The heat resistant spring 26 in which slits 26a, 26b are formed on a cylindrical heat resistant material alternately from the upward and downward directions, is provided so that a sealing member provided so as to abut on the side face of the optical fiber preform is pressed in the radial direction onto the side face of the optical fiber preform by shrinkage force in the cylindrical radial direction of the heat resistant spring 26.
摘要翻译：要解决的问题：为了提供能够通过简单结构进行密封的耐热弹簧，即使在光纤的情况下，在光纤拉丝炉的上端开口部分和光纤预制棒之间产生间隙具有大直径波动的纤维预制件。解决方案：该耐热弹簧26用于密封在光纤拉丝炉的上端开口部分和从其插入的光纤预制棒之间产生的间隙。设置有从上下方向交替地形成在圆筒状耐热材料上的狭缝26a，26b的耐热弹簧26，使得设置成与光纤预制件的侧面抵接的密封构件被按压在径向方向上通过耐热弹簧26的圆柱形径向方向上的收缩力在光纤预制件的侧面上。（C）2013，JPO和INPIT

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式