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1. 发明专利

JP2000235120A OPTICAL PARTS HOUSING FRAME DEVICE 失效
公开(公告)号：JP2000235120A
公开(公告)日：2000-08-29
申请号：JP3583999
申请日：1999-02-15
申请人： FURUKAWA ELECTRIC CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： ARAKAWA SATORU , OKUDA MAKOTO , NARAOKA SEIICHI , ENOMOTO YOSHITAKA , IZUMIDA CHIKASHI , MINE TSUNEJI
IPC分类号： G02B6/00
摘要： PROBLEM TO BE SOLVED: To facilitate the wiring and wiring change of optical fibers for connection and to improve the reliability of optical connection of optical parts to each other by arranging plural rows of second optical parts on the lower sides of trays for wiring along a longitudinal direction on the lower side of the trays for wiring. SOLUTION: The upper side of optical fiber junctures 41 for optical branching modules 4 is provided with the trays 28c for wiring which are mounted with the optical fibers 6 for connection and introduce the optical fibers to the optical branching module 4 side. Plural optical fiber supporting parts 48 for dividing and supporting the optical fibers 6 for connection introduced into the trays 28c for wiring in correspondence to the number of the optical fiber junctures 41 of the respective optical branching modules 4 are installed in combination in the longitudinal direction of the trays 28c for wiring. The respective optical fiber supporting parts 48 are disposed to offset successively in the positions of the direction orthogonal with the longitudinal direction of the trays 28c for wiring. As a result, the hanging down of the optical fibers 6 for connection like a bamboo blind on the trays 28c for wiring is prevented and the wiring and wiring change of the optical fibers 6 for connection are made extremely easy.

2. 发明专利

JP2000231023A OPTICAL COMPONENT STORAGE RACK DEVICE 失效
公开(公告)号：JP2000231023A
公开(公告)日：2000-08-22
申请号：JP3438399
申请日：1999-02-12
申请人： FURUKAWA ELECTRIC CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： ARAKAWA SATORU , OKUDA MAKOTO , NARAOKA SEIICHI , ENOMOTO YOSHITAKA , IZUMIDA CHIKASHI , MINE TSUNEJI
IPC分类号： H04B10/25 , G02B6/00 , H04B10/00 , H04B10/12 , H04B10/13 , H04B10/135 , H04B10/14
摘要： PROBLEM TO BE SOLVED: To facilitate wiring and wiring change and to increase the reliability of an optical connection between optical components. SOLUTION: The device is provided with a splitter module which has one end side connected to an in-office cable and optical fibers 6 for connection which store optical branch modules 4 each having one end side connected to a terminated cable 2 in a device rack and connect optical fiber connection parts formed on the splitter module and optical fiber connection parts 41 formed on an optical branch module 4, one to one. A tray 28c for wiring which mounts and leads the optical fibers 6 for connection to the optical fiber connection part 41 of the optical branch module 4 is provided on the upper side of the optical fiber connection part 41 and the tray 28c is provided with an R guide 42 which divides the optical fibers 6 for connection into optical fiber groups and guides them to the optical fiber connection parts 41 by the optical fiber group and a cord guide 43 which divides the optical fiber groups by the number of the optical fiber connection parts 41 of the optical branch modules 4.

3. 发明专利

JP2002107550A EXTRA LENGTH TRAY, OPTICAL DEVICE HAVING EXTRA LENGTH TRAY AND METHOD FOR CONNECTING ITS OPTICAL DEVICE 失效
公开(公告)号：JP2002107550A
公开(公告)日：2002-04-10
申请号：JP2000302328
申请日：2000-10-02
申请人： FURUKAWA ELECTRIC CO LTD , SEIWA GIKEN KK
发明人： ITO YOSHIHISA , ARAKAWA SATORU
IPC分类号： G02B6/24 , G02B6/00
摘要： PROBLEM TO BE SOLVED: To control problems that an extra length part is hooked and appearance is damaged by housing the extra length part of an optical cord or a coated optical fiber with excellent workability when optical devices are mutually connected. SOLUTION: An inserting port 3 for the optical cord 13 is provided on one end side of a casing 2, a drawing port 4 for the optical cord 13 is provided on the other end side of the casing 2 and a cylindrical winding core part 5 having as radius of curvature more than a pre-determined limit radius of curvature is provided within the casing 2. An extra length housing part 7 for the optical cord 13 is provided in the outer peripheral side of the winding core part 5, and the optical cord 13 is wound and housed around the winding core part 5. The bottom surface 9 of the extra length housing part 7 is formed into an inclined surface which is inclined downward as it advances from the outer peripheral surface 6 of the winding core part 5 to the outside.

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