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1. 发明专利

JPS58102912A PRODUCTION OF OPTICAL CONNECTOR 失效
公开(公告)号：JPS58102912A
公开(公告)日：1983-06-18
申请号：JP20311081
申请日：1981-12-16
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： SATAKE TOSHIAKI , TAKAGI SEISHI , ISO TAKAAKI , KOKAYU MIKIO
IPC分类号： B29C45/14 , G02B6/38
摘要： PURPOSE:To attain a mass production of optical connectors with high precision, by aligning plural optical fibers after stripping off the coat at the edge of each optical fiber, inserting the optical fibers into the hole of a holding plate along with pins at both sides and then injecting plastic while the optical fiber is held between two metallic dies. CONSTITUTION:Two metallic dies 1A and 1B have cavities 2a and 2b and flat square grooves 7a and 7b are formed at the counter faces 3a and 3b at the cable side. At the same time, the square grooves 4a and 4b are formed, and semicircular recesses 5a, 6a, 5b and 6b are formed at both sides of the grooves 4a and 4b to serve as pins. A plastic injecting port 8 is formed to the die 1A. The terminal of an optical cable 4 is processed and an optical fiber 15i is inserted into a hole 11i of a holding plate 9. The pins 16a and 16b are put into the holes 10a and 10b at both ends of the hole 11i, and the fiber 15i is held between the dies 1A and 1B. Under such conditions, the viscous plastic is injected 8. The plastic is taken out after it is hardened, and the fiber 15i is cut and polished at the face of the plate 9. Then the pins 16a and 16b are pulled out to be used as male screws. In such a way, the coincidence is obtained with high precision between axial cores for optical connectors in a mass production.

2. 发明专利

JPS5854806A CABLE LAYING DEVICE 失效
公开(公告)号：JPS5854806A
公开(公告)日：1983-03-31
申请号：JP15206581
申请日：1981-09-28
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： OIKAWA TOSHIO , WATANABE TOSHIO , KOKAYU MIKIO , TAKAGI SEISHI
IPC分类号： G02B6/46 , H02G1/02

3. 发明专利

JPS5688208A CABLE WITH FLEXIBLE DAM 失效
公开(公告)号：JPS5688208A
公开(公告)日：1981-07-17
申请号：JP16481479
申请日：1979-12-20
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD , SUMITOMO ELECTRIC INDUSTRIES , FUJIKURA LTD
发明人： IKEDA HAJIME , SATOU MASAHARU , TAKAGI SEISHI , FUSE KENICHI , KURANASHI HIROAKI , SATOU NOBUYASU
IPC分类号： H01B11/00 , G02B6/44

4. 发明专利

JPS5840509A HOUSING BODY FOR OPTICAL FIBER CABLE 失效
公开(公告)号：JPS5840509A
公开(公告)日：1983-03-09
申请号：JP13880481
申请日：1981-09-03
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： OIKAWA TOSHIO , KONNO SHIYOUJI , TAKAGI SEISHI , OBARA HIROICHI , KIMURA KENICHI
IPC分类号： G02B6/24 , G02B6/44
摘要： PURPOSE:To improve the productivity of a housing body and to simplify its stock control by using only one kind of housing body to attain wiring and branching. CONSTITUTION:A thin thickness part 3 which can be freely notched is formed on the peripheral wall 2 of a housing body 1 obtained by molding transparent styrol resin like a rectangular parallelepiped and the thin thickness part 3 is notched at need to insert and fix rubber supporting means 4 into/on the notched part. Optical fiber cables 5, 6, 7 are fitted to the supporting means 4. The housing body 1 is provided with an optical fiber connecting part 8, a fixing means 9 made of a magnet or the like for fixing the excess parts 10 of optical fibers on the bottom plate 11 of the housing body 1 and a cover 12 of the housing body 1. The housing body 1 is permitted to be molded like a cylinder. In this invention, various kinds of connection and branching are permitted by preparing only one kind of housing body 1 having two thin thickness parts 3 or more. In addition, if a transparent material is used for molding the housing body 1, the bending status of the housed excess parts 10 can be seen from the outside through the transparent housing body 1.

5. 发明专利

JPS57108815A CONNECTION PART OF OPTICAL FIBER CABLE 失效
公开(公告)号：JPS57108815A
公开(公告)日：1982-07-07
申请号：JP17065080
申请日：1980-12-03
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： MIYAUCHI MITSURU , TACHIKURA MASAO , OBARA HIROICHI , ISHIBASHI TOKIO , MIYAZAWA HIDEHISA , TAKAGI SEISHI
IPC分类号： G02B6/24 , G02B6/44 , H02G15/08
摘要： PURPOSE:To obtain a connection part for the optical fiber cables to which the number of the optical fibers are increased for storage wth no complication, by fixing a protecting case that stores the fibers stored in a sleeve after laminating such cases in plural stages. CONSTITUTION:The optical fibers 1b and 2b obtained by removing the outer coats 1a and 2a at the edge parts of optical fiber cables 1 and 2 are connected to each other at a splicing part 3. These fibers are coiled in a loop form to be stored into a protecting case 5 consisting of both side plates 4a and 4a plus a bottom plate 4b. The case 5 storing the fibers 1b and 2b is laminated in five stages, and an upper plate 8 having the same form as the plate 4 is put over the highest stage.

6. 发明专利

JPS5854308A OPTICAL CONNECTOR 失效
公开(公告)号：JPS5854308A
公开(公告)日：1983-03-31
申请号：JP15160581
申请日：1981-09-25
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： MURATA HISASHI , KOKAYU MIKIO , ISO TAKAAKI , TATEGAMI SHIGERU , TAKAGI SEISHI
IPC分类号： G02B6/38
摘要： PURPOSE:To perform a high-precision connection of a connector easily, by using plugs, which have axial plug elements at tips of base parts, and an adapter where plural adapter elements having hole parts for fitting of plug elements are provided in parallel. CONSTITUTION:A plug 1C is inserted from one side face of an adapter 5 into the inside, and plugs 1A and 1B or the like are inserted selectively from the other side face, thus connecting optical fibers 4A, 4B, and 4C. In this case, for example, a plug element 3A of the plug 1A and a plug element 3C1 of the plug 1C are fitted closely to a hole part 10 of an adapter element 71, and end faces of optical fiber cores exposed to respective end faces of these plug elements are matched to each other. Meanwhile, plug elements 3B1 and 3B2 of the plug 1B and plug elements 3C4 and 3C5 of the plug 1C are butted to each other respectively in adapters 74 and 75 and are connected.

7. 发明专利

JPS58100111A REINFORCING METHOD FOR OPTICAL FIBER CONNECTION PART 失效
公开(公告)号：JPS58100111A
公开(公告)日：1983-06-14
申请号：JP19817881
申请日：1981-12-09
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： MATSUMOTO MICHITO , MIYAJIMA YOSHIAKI , TAKAGI SEISHI , TATEGAMI SHIGERU
IPC分类号： G02B6/24 , G02B6/38
摘要： PURPOSE:To eliminate the need for an injection machine and to reinforce connection easily and speedily by molding by coating at least either one of the circumference of an optical fiber connection part and the recessed part of a mold with an auxiliary agent and then injecting a main agent. CONSTITUTION:At least of either one of the circumference of the connection part 5 of optical fibers 4 and 4 connected by using a resin-coated optical fiber 1 and a mold 2 and the circumferential surface of the recessed part 6 of the mold 2 is coated previously with an auxiliary agent for castable resin 8 to be molded by dissolving it in a solution of alcohol, aceton, etc. The castable resin 8 is set by the contacting with a principal agent and the auxiliary agent and the principal agent is a compound which has a double bond, for example, in a molecule or at a molecule terminal and radical polymerization is induced by the radical generated by peroxide.

8. 发明专利

JPS5898714A OPTICAL FIBER CONNECTOR BASE 失效
公开(公告)号：JPS5898714A
公开(公告)日：1983-06-11
申请号：JP19718481
申请日：1981-12-07
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： MORI KENJI , CHIKASAWA TATSUFUMI , ISO TAKAAKI , TAKAGI SEISHI , KOKAYU MIKIO
IPC分类号： G02B6/42 , G02B6/44
摘要： PURPOSE:To prevent an increase of a transmission loss due to the fact that an optical fiber is bent excessively, by fitting a connector base having a holder by which an optical fiber connector can be inserted and drawn out freely, to a connecting box, so that the direction of the holder can be switched freely to the front and the side of the connecting box. CONSTITUTION:A connector base 7 is constituted so that a holder 15 of the connector base 7 is directed to the front or the side of a connecting box 2, by making a rotary shaft 17 freely rotatable around a rotary shaft 17, and replacing hinges 18, 19 to the connecting box 2. Therefore, even if an optical fiber 5 is wound and bent in the wide width direction of width of the connector base 7 and its radius is taken large, when an optical fiber connector 28 is inserted into the holder 15 or the connector 28 is drawn out, the inserting or drawing-out work can be executed easily by directing the holder 15 to the front of the connecting box 2.

9. 发明专利

JPS5849907A FIXING METHOD FOR OPTICAL FIBER CONNECTION PART 失效
公开(公告)号：JPS5849907A
公开(公告)日：1983-03-24
申请号：JP14745481
申请日：1981-09-18
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： MIYAUCHI MITSURU , TAKAGI SEISHI
IPC分类号： G02B6/24 , G02B6/38 , G02B6/44
摘要： PURPOSE:To simplify the handling for fixing of a connection part, by using a magnetic material as one of a device body and the connection part between optical fibers and using a magnetized material as the other. CONSTITUTION:A reinforcing member 6 for a connection part 4 between optical fibers 2A and 2B is formed with a base plate 7 and a press cover 8 and consists of a magnetized material. Ends of coatings of optical fibers 2A and 2B are fitted from slits 9A and 9B up to grooves 11A and 11B, and end parts 3A and 3B of optical fibers are fitted into a groove 10 and are detained by the press cover 8, thus attaching the reinforcing member 6. A device body 12 consists of a box- shaped main body 13 and a cover body 14, and they are magnetic together. Thus, the connection part is fixed to a desired position of the device body to simplify the handling for fixing of the connection part.

10. 发明专利

JPS5814807A STORING DEVICE OF OPTICAL FIBER SURPLUS LENGTH PART 失效
公开(公告)号：JPS5814807A
公开(公告)日：1983-01-27
申请号：JP11300881
申请日：1981-07-21
申请人： NIPPON TELEGRAPH & TELEPHONE , FURUKAWA ELECTRIC CO LTD
发明人： OIKAWA TOSHIO , KONNO SHIYOUJI , TAKAGI SEISHI , ISO TAKAAKI , KOKAYU MIKIO
IPC分类号： G02B6/24 , G02B6/44
摘要： PURPOSE:To store and take out an optical fiber surplus length part in an optical fiber connecting part in good order and easily, by installing a case for storing the optical fiber surplus length part, to receiving base provided on a base body freely attachably and detachably. CONSTITUTION:For instance, on a connecting box 1 of a base line cable laid under the ground, an optical fiber cable holding tool 3, a connector base 4 and a surplus length storing body 5, thus an optical fiber cable 2 is connected. The storing body 5 consists of a receiving base 6 and a case 7 being freely attachable and detachable to the base 6. The receiving base 6 projects projecting pieces 8 on side walls so as to be opposed, partitions the lengthwise direction, and projects spring-like detaining pieces 9 from both the side walls of the partitioned part. The case 7 opens its upper surface 10, is provided with a bottom plate 11, also stores an annular wound surplus length part 13 of an optical fiber 12, provides a recessed fitting part 14 on both sides in the lengthwise direction, and the case is installed to the receiving base 6. In this regard, to an opening upper surface 10, a cover 15 is installed freely attachably and detachably.

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