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41. 发明专利

JPS63287912A TERMINAL PART OF COMPOSITE CABLE 失效
公开(公告)号：JPS63287912A
公开(公告)日：1988-11-25
申请号：JP12242587
申请日：1987-05-21
申请人： FURUKAWA ELECTRIC CO LTD , CHUBU ELECTRIC POWER
发明人： YUGUCHI RENICHI , OTAKE AKIHIRO , TATEGAMI SHIGERU , MURAMATSU MASAHIKO , SUGIMOTO KATSUYOSHI , UMIZUMI MASANORI
IPC分类号： G02B6/24 , H01R13/58
摘要： PURPOSE:To simplify an on-site operation and to relieve the tension acting on an optical fiber by housing an optical connector mounted to an optical fiber core into a connector housing and covering the exposed part of the optical fiber with half-split dies, a heat shrinkable tube, etc. CONSTITUTION:The optical connector 4 connected to the optical fiber core 3 contained together with an electric wire 2 in a composite cable 1 is housed in the connector housing 5 and the core 3 is fixed by a packing material packed in the housing 5. The exposed core 3 between the housing 5 and the electric wire 2 is covered by the plural half-split dies 10, the heat shrinkable tube 13, and the waterproofing agent packed into the spacings between the dies 10 and the tube 13, by which the need for a connecting box is eliminated and the on-site operation of the optical connector protection is simplified. The tension which acts on the optical fiber core when the tension is acted on the electric wire after laying is absorbed in the respective parts covering the optical fiber core and is thereby relieved.

42. 发明专利

JPS63180916A OPTICAL CABLE WITH CONNECTOR 失效
公开(公告)号：JPS63180916A
公开(公告)日：1988-07-26
申请号：JP1138887
申请日：1987-01-22
申请人： FURUKAWA ELECTRIC CO LTD
发明人： YUGUCHI RENICHI , OTAKE AKIHIRO , TATEGAMI SHIGERU
IPC分类号： G02B6/36 , G02B6/38
摘要： PURPOSE:To eliminate the need to install a connection box at an actual site by storing an optical connector in a connector housing, and connecting the optical connectors 7 and also coupling the connector housing to the opposite connector housing at the time of connecting operation. CONSTITUTION:The base part of a flexible pipe 4 is fixed to the tip of a sheath 2 with an adhesive, etc., and the connector housing 5 is coupled with the tip of the flexible pipe 4 by a connector 6 for connection respectively. The optical connector 7 is fitted to the tip of an optical fiber core 3 and stored stop in the connector housing 5. Pins 8 and 9 for alignment are projected from the end surface of the connector housing 5 and the end surface of the optical connector 7, and a nut 10 for coupling is supported rotatably so that it does not fall. The optical cable 1 with the connector like this is laid and then connected to the optical fiber core of an optical cable of an adjacent section through the optical connector 7 and connector housing 5. Consequently, the connecting operation at the actual site is only the connection of the optical connectors 7 and connector housings 5, and the positioning with the opposite optical cable is facilitated.

43. 发明专利

JPS63180915A TERMINAL PART FOR OPTICAL CABLE 失效
公开(公告)号：JPS63180915A
公开(公告)日：1988-07-26
申请号：JP1138787
申请日：1987-01-22
申请人： FURUKAWA ELECTRIC CO LTD
发明人： YUGUCHI RENICHI , OTAKE AKIHIRO , TATEGAMI SHIGERU
IPC分类号： G02B6/36 , G02B6/38
摘要： PURPOSE:To efficiently perform branch connecting operation in a short time by coupling a connector housing with the tips of respective flexible pipes and supporting and optical connector fitted for the tips of optical fiber cores in each group in the connector housing. CONSTITUTION:An optical core unit 3 is branched previously at the terminal part 5 of an optical cable 1 and branching operation is not necessary at an actual site. The optical connector 11 is connected previously to branched optical fiber cores 2 in each group, so connections with optical fiber cores of an optical cable of a next section are easily made at the actual site. Respective optical connectors 11 are put in the connector housing 9, which is coupled with the opposite connector housing, so the connection box which contains the optical connector 11 need not be installed at the actual site. The optical fiber cores 2 in respective groups are put in flexible pipes 7 respectively, so they are freely bent and easily positioned for the opposite connected cores. Consequently, the operation at the actual site is only the connection of connectors and the actual site operation is performed efficiently in a short time.

44. 发明专利

JPS63180913A TERMINAL PART OF COMPOSITE CABLE 失效
公开(公告)号：JPS63180913A
公开(公告)日：1988-07-26
申请号：JP1138487
申请日：1987-01-22
申请人： FURUKAWA ELECTRIC CO LTD
发明人： YUGUCHI RENICHI , OTAKE AKIHIRO , TATEGAMI SHIGERU
IPC分类号： G02B6/24 , G02B6/38 , H01R13/46
摘要： PURPOSE:To prevent an optical fiber core from being damaged by the end part of an electric wire at the time of extension by fixing the optical fiber core by means of a fixing member to the end of the electric wire. CONSTITUTION:The optical fiber core 3 having a fiber-reinforced plastic coating is built via a protective tube or the like into the center of the electric wire 2 twisted with the metallic strands of a composite cable 1 at the terminal part of the composite cable. The optical fiber core 3 is led out of the end part of the electric wire 2 at a min. required length and an optical connector 4 is mounted to the front end of the optical fiber core 3. The leading out part of the optical fiber core 3 is fixed to the end of the electric wire 2 by the fixing member 5 such as adhesive agent in the end part of the electric wire 2. A cylindrical extension clamp 6 is fitted to the cable to enclose the end part of the electric wire 2, the exposed part of the optical fiber core 3 and the connector 4 and is fixed to the electric wire 2 by a press contact part 6A, etc. The leading in of the optical fiber core 3 into the electric wire is thereby prevented at the time of extending the cable and, therefore, the damage of the optical fiber core 3 in the end part of the electric wire at the time of the extension is prevented.

45. 发明专利

JPS61270703A METHOD FOR CUTTING TAPE-LIKE MULTICORE OPTICAL CABLE CORE 失效
公开(公告)号：JPS61270703A
公开(公告)日：1986-12-01
申请号：JP11205785
申请日：1985-05-27
申请人： FURUKAWA ELECTRIC CO LTD
发明人： ISO TAKAAKI , OTAKE AKIHIRO , OCHIAI TOSHIHIRO
IPC分类号： G02B6/00 , G02B6/44 , H02G1/12
摘要： PURPOSE:To cut off an optical fiber at its rectangular end surface by leaving a part of an unnecessary coat on an exposed optical fiber at the removal of the coat and then cutting of the exposed optical fiber between the residual coat and the unnecessary coat. CONSTITUTION:At the removal of the coat 12 of the tape-like multicore optical fiber core 10, the unnecessary coat 12A to be removed is slid on the exposed optical fiber 14 and left on the optical fiber 14 exposed with a fixed interval P from the residual coat 12B on the optical fiber 14. Then, the exposed optical fiber 14 is cut off on a line 15 between the residual coat 12A and the unnecessary coat 12B by a cutter (unshown in figure).

46. 发明专利

JPS61200510A OPTICAL BRANCHING FRAME 失效
公开(公告)号：JPS61200510A
公开(公告)日：1986-09-05
申请号：JP4080085
申请日：1985-03-01
申请人： FURUKAWA ELECTRIC CO LTD
发明人： HAYASHI TAKEHIRO , YUGUCHI RENICHI , TATEGAMI SHIGERU , OTAKE AKIHIRO
IPC分类号： G02B6/24
摘要： PURPOSE:To store numbers of connection units orderly and to improve the operability of control over them by supporting a shelf for optical cords in which through holes are bored and a shelf for mounting excessive-length parts of an optical cord alternately in many stages on longitudinal frame members into frame constitution. CONSTITUTION:Shelves 1-3 of many stages are supported on longitudinal frame members 4 into frame constitution and an optical cord 23 led down below a shared shelf 3 is placed on a shelf 1, and its excessive-length parts 25 and 26 are lowered from through holes 5 into an excessive-length part mounting shelf 2. The connector 27 of an end part of the optical cord 23 and the connector 28 of an end part of a jumper line 24 are fitted in multicore optical adapters 18 and 19 of an optical connection terminal 13. Therefore, the optical cord and an optical fiber having its excessive-length parts treated are placed on their dedicated shelves, so they are connected by utilizing through holes without twining nor detouring.

47. 发明专利

JPH08327829A DIVIDING MEANS FOR COATED OPTICAL FIBER RIBBON 失效
公开(公告)号：JPH08327829A
公开(公告)日：1996-12-13
申请号：JP13366395
申请日：1995-05-31
申请人： FURUKAWA ELECTRIC CO LTD
发明人： HARA MASAMI , OTAKE AKIHIRO
IPC分类号： G02B6/00 , H02G1/12
摘要： PURPOSE: To make it possible to easily and surely divide a coated optical fiber ribbon to a required number of coated fibers without depending on the technique level of an operator by movably providing the dividing means with positioning members for regulating the positions in the transverse direction of the coated optical fiber ribbon. CONSTITUTION: The dividing means 10 for the coated optical fiber ribbon has a dividing means casing 11, a dividing means body 20 housed within the dividing means casing 11 and a casing 12 covering the surface having a mounting hole 134 of the dividing means casing 11. The U-shaped positioning members 14 are fixed with lock screws 15 to both side faces of the dividing means casing 11. These positioning members 14 have depth regulating parts 16 for regulating the positions in the transverse direction of the coated optical fiber ribbon to be mounted. Then, the mounting position of the coated optical fiber ribbon is properly set by moving the positioning members 14 and fixing the positioning members 14 by tightening the lock screws 15 disposed in oblong holes 17 at the point where the depth regulating parts 16 reach the desired positions.

48. 发明专利

JPH07318743A METHOD FOR COATING OPTICAL FIBER JUNCTURE 失效
公开(公告)号：JPH07318743A
公开(公告)日：1995-12-08
申请号：JP13251094
申请日：1994-05-23
申请人： FURUKAWA ELECTRIC CO LTD
发明人： TAKEDA YOSHITERU , OTAKE AKIHIRO
IPC分类号： G02B6/255 , C03C25/10 , C03C25/02
摘要： PURPOSE:To provide a reinforced coating layer for an optical fiber juncture which is free from lumps and flashes and is uniform with the diameter nearly equal to the coating diameter of the optical fibers. CONSTITUTION:This coating method for the optical fiber juncture comprises arranging the parts 3A, 3B where the coating of the optical fibers are removed into a groove 8 of one mold 4A of a pair of transparent molds 4A, 4B along the longitudinal direction of this groove 8 and packing a UV curing resin into the parts 3A, 3B where the coatings are removed in the groove 8, then mating the mold 4B which is the other of the pair with this mold, irradiating the molds 4A, 4B with UV rays from the outer side thereof to cure the resin, thereby molding the reinforced coating layer 15. The molds 4A, 4B described above are provided with films which do not allow transmission of UV rays on their mating surfaces. The molds are provided with the material which does not allow the transmission of the UV rays on their mating surfaces exclusive of the grooves and, therefore, the uncured UV curing resin projecting to the mating surfaces does not form the flashes and remains uncured. Then, the resin is easily wiped away by a solvent, such as ethanol.

49. 发明专利

JPH07229797A LINEAR EXTERNAL PRESSURE SENSOR 失效
公开(公告)号：JPH07229797A
公开(公告)日：1995-08-29
申请号：JP4329194
申请日：1994-02-18
申请人： FURUKAWA ELECTRIC CO LTD , KANSAI ELECTRIC POWER CO , ELECTRIC POWER DEV CO
发明人： KOSAKA MASATO , OTAKE AKIHIRO , HARA TOSHIAKI , YOKOTA KAZUO , TERAJIMA KAZUKI
IPC分类号： G01L1/00 , G01M11/00 , G02B6/00
摘要： PURPOSE:To detect only an external pressure applied in a specific direction by composing the inside of a pipe, which is deformed by receiving an external pressure, with a core member part with a D-shaped section having a continued plane in the longitudinal direction and a space part housing a covered optical fiber. CONSTITUTION:A core member 3 with an about D-shaped section which has a plane F continued in the longitudinal direction at a part of the outer periphery surface and is housed in a slender pipe 2 which is deformed by receiving an external pressure, and a covered optical fiber 4 housed in a space formed by the plane F of the core member 3 and the inner surface of the pipe 2 are provided. When an external pressure almost in the vertical direction to the plane F of the core member 13 is applied, since the pipe 2 is deformed easily and presses the covered optical fiber 4, it can be detected securely that the external pressure is applied from that direction. On the other hand, when an external pressure is applied in the direction parallel to the plane of the core member 3, for example, the pipe 2 is not deformed. and the external pressure is not detected.

50. 发明专利

JPH04333008A PRODUCTION OF COATED TAPE OPTICAL FIBER 失效
公开(公告)号：JPH04333008A
公开(公告)日：1992-11-20
申请号：JP10265491
申请日：1991-05-08
申请人： FURUKAWA ELECTRIC CO LTD
发明人： MAEDA KEIGO , OKAGAWA SHUJI , OTAKE AKIHIRO
IPC分类号： G02B6/44
摘要： PURPOSE:To produce the coated tape optical fiber without providing spacings between optical fibers juxtaposed within one plane. CONSTITUTION:Plural pieces of the optical fibers 2a to 2h let off from bobbins are arrayed in parallel on a plane and are supplied. The direction of the arraying plane of the arraying body 2 of these optical fibers is changed during this process. The tension on the optical fibers 2a, 2h positioned at both ends of the arraying body 2 of the optical fibers 2a to 2h is set larger than the tension on the remaining optical fibers 2b to 2g. The arraying body 2 of the optical fibers 2a to 2h changed in the direction is integrally coated with a resin 3 by a coating die 8 and this coating resin 3 is cured and integrated by a curing furnace 9, by which the coated tape optical fiber 1 is obtd.

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