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1. 发明申请

WO2021079537A1 FUSION SPLICER 审中-公开
公开(公告)号：WO2021079537A1
公开(公告)日：2021-04-29
申请号：PCT/JP2020/008565
申请日：2020-02-21
申请人： FUJIKURA LTD.
发明人： HASEGAWA, Ryo , YOKOTA, Koichi , KAWANISHI, Noriyuki
IPC分类号： G02B6/255
摘要： A fusion splicer according to the invention includes a heater which heats a glass part of an optical fiber, a lower clamp on which a coated part of the optical fiber is placed, a coated part clamp which sandwiches the optical fiber between the coated part clamp and the lower clamp, a windproof cover which covers the heater and the coated part clamp, and a retreat mechanism which causes the coated part clamp to retreat from the lower clamp. The retreat mechanism includes a power source, an elastic member that elastically deforms by power received from the power source, a transmission part which pushes the coated part clamp upward due to an elastic force received from the elastic member, and a restricting part which restricts displacement of the transmission part in a state in which the windproof cover is closed. The restricting part releases restriction on displacement of the transmission part in conjunction with an opening operation of the windproof cover.

2. 发明申请

WO2021079538A1 FUSION SPLICER 审中-公开
公开(公告)号：WO2021079538A1
公开(公告)日：2021-04-29
申请号：PCT/JP2020/008566
申请日：2020-02-21
申请人： FUJIKURA LTD.
发明人： HASEGAWA, Ryo
IPC分类号： G02B6/255
摘要： A fusion splicer of the invention includes a device main body having a heater which heats a pair of optical fibers, a pair of glass holders on which grooves that places respective glass parts of the pair of optical fibers thereon are formed, a pair of openable and closable first clamps which hold the glass parts between the first clamps and the glass holders, a pair of openable and closable second clamps which press respective coated parts of the pair of optical fibers from above, an openable and closable third clamp fixed to the device main body and configured to restrict movement of at least one of the pair of optical fibers in a closed state, and an openable and closable windproof cover which covers the heater, the pair of glass holders, the pair of first clamps, the pair of second clamps, and the third clamp. The device main body includes a cover driver which opens and closes the windproof cover and a clamp driver which opens and closes the pair of second clamps, an opening and closing operation of the pair of first clamps is in conjunction with an opening and closing operation of the windproof cover, and the third clamp is configured to maintain the closed state even after the windproof cover is opened.

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