安全なウインチ曳航の理論と実践/JSA 2021 Safety winch seminar

҆શͳ΢ΠϯνӪߤͷ ཧ࿦ͱ࣮ફ ೥݄෱Ԭʗ݄ࡳຈ ౦ژ޻ۀେֶɹߤۭݚڀ෦0#ձ ௡ٱҪɹ५ 1

ࣗݾ঺հ ΢Πϯν҆શ׆ಈΛ࢝ΊΔ͖͔͚ͬͱͳͬͨग़དྷࣄ ӳࠃͱ೔ຊͷ΢Πϯνࣄނ౷ܭൺֱ ΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ ΢ΠϯνӪߤதͷྗֶ
ϩʔςʔγϣϯதͷྗֶ ॳظ্ঢதͷετʔϧ ϑΟʔτҎԼͷύϫʔϩε ύϫʔϩεʹҾ͖ଓ͘ετʔϧͱεϐϯ ·ͱΊ զʑ͸Կ͕Ͱ͖ΔͩΖ͏͔ʁԿΛ͢΂͖͔ʁ 2 ಺༰

ࣗݾ঺հ w ೥ɿಢ໦ݝ଍རࢢੜ·Ε w ೥ɿ౦ژ޻ۀେֶɹٕज़ձߤۭݚڀ෦ೖ෦ ɹɹࡏֶத͸ඈͿ͜ͱΑΓ΋΢Πϯν੡࡞ʹ຅಄ w ೥ɿ౦޻େࣜ̎࿈΢Πϯν׬੒ w
೥ɿࣗՈ༻ૢॎ࢜׈ۭػ্ڃऔಘ w ೥ɿૢॎڭҭূ໌औಘ w ೥ʙ೥ɿ/BSSPNJOFʹͯLNɺLNΫϩεΧϯτϦʔ w ೥ʙ೥ɿӉ஦ધͷ։ൃʹ຅಄ w ೥ʙ೥ɿάϥΠμʔ׆ಈٳࢭ w ೥ɿ׈ۭքʹ෮ؼ w ೥ʙ೥ɿ฼ߍ΢ΠϯνಋೖϓϩδΣΫτ w ೥ɿಈྗ׈ۭػݶఆมߋ߹֨ w ೥ݱࡏɿ൘૔ɺؔ॓ɺ࠺পΛڌ఺ʹ׆ಈ ɹɹ೔ຊάϥΠμʔΫϥϒձһΠϯετϥΫλʔ ɹɹ౦ژ޻ۀେֶ౦ژཧՊେֶίʔν ɹɹඈߦ࣌ؒ࣌ؒ 3 ಈྗ׈ۭػͰؔ౦ฏ໺9$ Ӊ஦εςʔγϣϯิڅػʮ͜͏ͷͱΓʯ

΢Πϯν҆શ׆ಈΛ࢝ΊΔ͖͔͚ͬͱͳͬͨग़དྷࣄ ؙҪຬஶʮ෩Λௌ͚ʯΑΓ w ೥݄೔࠺প׈ۭ৔ w ͜ͷ೥͸കӍ͕໌͚ͣӍ͕߱ͬͨΓࢭΜͩΓͷຖ೔ w ౰࣌೥ੜɺೖ෦ͯ̎͠ճ໨ͷ߹॓ʢ̐ճͷඈߦܦݧʣɺ ɹɹ೥ੜͷॳιϩʹཱͪձ͏ w
΢ΠϯνӪߤதNҐͰӢͷஅยʹಥೖ w Ӣ͔Βग़͖ͯͨ࣌ʹ͸ਨ௚߱Լঢ়ଶ w ۭࣦؒࣝௐɺαϒ(ˎͷӨڹ͕͋ͬͨͱݴΘΕ͍ͯΔ ɹɹˎ೔ຊͷ׈ۭքͰ͸αϒ(ͱݺͼशΘ͞Ε͍ͯΔ͕ɺߤۭҩֶքͰ͸ɺɹɹɹɹ ɹɹɹ4PNBUPHSBWJD*MMVTJPOͱݺ͹Ε͍ͯΔɻ 4 IUUQTXXXCPMENFUIPEDPNMFBSOUPqZBFSPNFEJDBM GBDUPSTUIFTPNBUPHSBWJDJMMVTJPODBVTFTBDDJEFOUTIPXUP QSFWFOUJUJOJND

ӳࠃͱ೔ຊͷ΢Πϯνࣄނ౷ܭൺֱ
΢ΠϯνӪߤʹ܎ΔࣄނͷҠΓมΘΓʙࢮ๢΋͘͠͸ॏইऀͷਓ਺ 5 ӳࠃ ೔ຊ ӳࠃͰ͸#("͕΢Πϯν ҆શΩϟϯϖʔϯΛ։࢝ ೔ຊͰάϥΠμʔ ࣄނ͕ଟൃͨ͠೥ ग़యɹ+4"*/'0+6-:ʮ΢Πϯν҆શʹ܎Δ೔ӳ౷ܭൺֱʢ௡ٱҪʣʯΛमਖ਼

ӳࠃͱ೔ຊͷ΢Πϯνࣄނ౷ܭൺֱ ࢮ๢΋͘͠͸ॏ঱ ೔ຊʢʣ ճͷ΢ΠϯνӪߤʹਓ ӳࠃʢʣ ճͷ΢ΠϯνӪߤʹਓ ࢮ๢΋͘͠͸ॏ঱ ೔ຊʢʣ
ճͷ΢ΠϯνӪߤʹਓ ӳࠃʢʣ ճͷ΢ΠϯνӪߤʹਓ 6 ද̍ɹӳࠃͱ೔ຊͷ΢Πϯνࣄނ౷ܭൺֱʢ೔ӳͷൃߤ਺ͷҧ͍Λߟྀ ʣ දɹӳࠃͱ೔ຊͷ΢Πϯνࣄނ౷ܭൺֱʢ೔ӳͷظؒͷҧ͍Λߟྀ ʣ ग़యɹ+4"*/'0+6-:ʮ΢Πϯν҆શʹ܎Δ೔ӳ౷ܭൺֱʢ௡ٱҪʣʯΛमਖ਼ ͦͷଞৄࡉ͸ग़యΛࢀর ೔ຊͷʙ΢Πϯνൃߤ਺ɹɿ ճʢ+4"*/'0׈ۭ౷ܭΑΓචऀूܭʣ ӳࠃͷʙ΢Πϯνൃߤճ਺ɿ ճʢ#("αΠτΑΓʣ ೔ຊͷʙ΢Πϯνൃߤ਺͸ɺʙ౷ܭͱಉ͡ϨϕϧͱԾఆ ӳࠃͷʙൃߤճ਺͸ʙͱಉ͡ϨϕϧͱԾఆʣ

ӳࠃͱ೔ຊͷ΢Πϯνࣄނ౷ܭൺֱ ΢Πϯν҆શʹ܎Δ೔ӳ౷ܭൺֱ͔ΒΘ͔Δ͜ͱ w ӳࠃɿ೥ʹ΢Πϯν҆શΩϟϯϖʔϯΛ࢝ Ίɺ࣍ͷ೥ؒͰ΢ΠϯνӪߤʹ܎Δࣄނ͕̍ʗ ʹݮগͨ͠ w ೔ຊɿ೥ʹάϥΠμʔࣄނ͕ଟൃͯ͠ʢ̓ճ த΢Πϯνࣄނ̎ճʣɺ֤छରࡦ͕ଧͨΕͨ΋ͷͷ ͦͷޙ΢ΠϯνӪߤʹ܎Δࣄނ཰ʹมԽ͕ͳ͔ͬͨ
w ӳࠃ͸೔ຊͷഒͷ҆શ཰Λୡ੒͍ͯ͠Δ 7 զʑ͸Կ͕Ͱ͖ΔͩΖ͏͔ʁԿΛ͢΂͖͔ʁ There was a fatal winch accident in 2017 after a launch failure under rotor and a turn into sink so intense that it was not possible to complete a 360° turn from 300ft. There were no accidents in 2017 from a winch stall or spin. Well done everyone! There were 4 accidents from a wing drop. A new edition of the Safe Winch Launching booklet was published in October 2017. Please secure your own copy from your club or from the BGA website. The booklet stresses how everyone involved in a winch launch can help ensure that it is safe. 3OHDVHKHOSPDNH DQDFFLGHQWIUHH\HDU www.gliding.co.uk/safewinchlaunching BRITISH GLIDING ASSOCIATION Please help make 2018 an accident-free year 1982-1993 1994-2005 2006-2017 40 50 30 20 10 Winch fatal and serious injuries Progress 2006-2017 WING-TIP HOLDER STOP THE LAUNCH if there is an up or down force at the tip. PILOT • If you have difﬁculty in keeping the wings level before take-off, release before the wing touches the ground. • After take-off, maintain a shallow climb until adequate speed is seen with continued acceleration. Then allow the glider to rotate at a controlled pace. • If power is lost near the ground, immediately lower the nose to the appropriate recovery attitude. • After power loss in mid-launch, adopt the recovery attitude, wait until the glider re-gains a safe approach speed, and land ahead if it is safe to do so. Beware of a turn into sink from strong winds or wave. Continued vigilance is crucial. Publications Safe launch essentials Keep Winch Launching Safe © Mike Fox #("4BGF8JODI-BVODIJOH1PTUFS IUUQTNFNCFSTHMJEJOHDPVLMJCSBSZTBGFXJODI MBVODIJOHTBGFUZTBGFXJODIMBVODIJOHQPTUFS

8 ೥౓׈ۭεϙʔπߨशձ&.'5ֶՊࢿྉʢᓎҪྰࢠࢯʣΑΓ

The fatal and serious injury winch accident rate in the
last 12 years is a vast improvement on the previous rate but we need to continue to work hard at safe winch launching if the current accident rate is to be maintained and driven even lower. This booklet contains advice for keeping safe at each stage of a winch The most critical e • ,I\RXKDYHGLႈ release before • $IWHUWDNHRႇP is seen with co rotate at a cont immediately low attitude. • After power los wait until the gl ahead if it is sa 0 5 10 15 20 25 30 35 40 45 50 1974-1981* 1982-1993 1994-2005 2006-2017 Fatal and Serious Winch Injuries fatal stall/spin fatal other serious injury stall/spin serious injury other $GRZQORDGDEOHFRS\ simulated winch accid A DVD containing pre voiceover was sent to are also available on www.gliding.co.uk/s In the space available IUUQTNFNCFSTHMJEJOHDPVLXQDPOUFOUVQMPBET TJUFT8JODI#PPLMFU8FCQEG ΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ #(")14BGF8JODI-BVODIΑΓ 9 ೔ຊ ӳࠃ ӡ༌҆શҕһձߤۭ ػࣄނใࠂॻΑΓ IUUQXXXNMJUHPKQKUTC BJSNFOVIUNM

΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ ΢ΠϯνӪߤதͷࣄނͷཁҼʢ#("ͷ෼ੳʹΑΔʣ w ཌྷ୺͕઀஍ͯ͠ى͜Δάϥ΢ϯυϧʔϓ΍ଆస w ॳظ্ঢதͷετʔϧʹىҼ͢ΔཌྷͷམԼ΍എ໘΁ͷϑϦοΫϩʔϧ w ϑΟʔτҎԼͰͷύϫʔϩεʹΑΔετʔϧ΍஍໘΁ͷμΠϒ w Ӫߤத൫ͰͷύϫʔϩεʹΑΔετʔϧ΍εϐϯ
w Ӫߤத൫ͰͷύϫʔϩεʹҾ͖ଓ͘ϦΧόϦʔޙͷΦʔόʔγϡʔτ΍ Ξϯμʔγϡʔτɺ৔पޙͷண཮தͷিಥ w ஍্Ͱͷࡧͷ΋ͭΕ΋͘͠͸ඈߦதͷࡧ΁ͷিಥ கࢮࣄނͷओཁҼɿॳظ্ঢதͷετʔϧͱӪߤத൫Ͱͷύϫʔϩεޙͷεϐϯ ॏইࣄނͷओཁҼɿ͜ͷͭʹՃ͑GUҎԼͰͷύϫʔϩεޙͷετʔϧ #("ͷ҆શΩϟϯϖʔϯͷ݁Ռ ্ه΢ΠϯνӪߤʹىҼ͢Δࣄނ͸̍ʗ̒ʹݮগ ετʔϧͱεϐϯʹݶͬͯ͸̍ʗ̍̌ʹݮগ 10 ೔ຊ݅਺

໰୊ࢮ๢΍ॏ঱ʹࢸΔ΢Πϯνࣄނͷେ෦෼͸ɺετʔϧ΍εϐϯΛ൐͍ ·͢ɻࡧ͕͍ͭͨ··Ͱ͋ͬͨΓɺύϫʔϩεޙͰ͋ͬͨΓ͠·͢ɻ͜ΕΒ ͷࣄނ͸ͲͷΑ͏ͳύΠϩοτʹى͜ΔͷͰ͠ΐ͏͔ ˓ܦݧͷઙ͍ύΠϩοτ ˓ܦݧͷ͋ΔύΠϩοτ ΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ 11 IUUQTNFNCFSTHMJEJOHDPVLCHBTBGFUZ NBOBHFNFOUTBGFXJODIJOHTBGFXJODIMBVODIJOHRVJ[
ग़య#("4BGF8JODI-BVODIJOH2VJ[

໰୊ϑϧΫϥΠϜ΁ٸ︎ʹϐονΞοϓ͢Δͱɺࡧ੾ΕҎ֎ͰͲͷΑ͏ͳةݥ ͕͋Γ·͔͢ ˓︎଎౓ൈ͚ ˓ετʔϧͱϑϦοΫϩʔϧ ΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ IUUQTNFNCFSTHMJEJOHDPVLXQDPOUFOUVQMPBETTJUFT @qJDLNQ 12 IUUQTNFNCFSTHMJEJOHDPVLCHBTBGFUZ
NBOBHFNFOUTBGFXJODIJOHTBGFXJODIMBVODIJOHRVJ[ ग़య#("4BGF8JODI-BVODIJOH2VJ[

໰୊ϑϧΫϥΠϜதͷύϫʔϩε ΢Πϯνނো΍ࡧ੾ΕͳͲ ʹىҼ͢Δ ةݥ͸Կ͕͋ΔͰ͠ΐ͏͔ ˓ϥϯσΟϯάதͷΦʔόʔγϡʔτ΍Ξϯμʔγϡʔτɺ͋Δ͍͸িಥ ˓ετʔϧͱεϐϯ ΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ IUUQTNFNCFSTHMJEJOHDPVLXQDPOUFOUVQMPBETTJUFT @TQJONQ
13 IUUQTNFNCFSTHMJEJOHDPVLCHBTBGFUZ NBOBHFNFOUTBGFXJODIJOHTBGFXJODIMBVODIJOH RVJ[ ग़య#("4BGF8JODI-BVODIJOH2VJ[

΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ ࣄྫ ݪҼ ʢࣄނௐࠪใࠂॻ౳ʣ ཁҼͱରࡦ ΫϥϒϦϕϨʢ೔ຊʣ ॳظ্ঢ࣌ɺߴ౓dNͰӈʹ܏͖൓స ͠௢མɻࢮ๢ɻ ΢Πϯνൃߤதʹద੾ͳ଎౓Λ֫ಘ͠ͳ͍
͏ͪʹ্ঢ࢟੎Λऔͬͨ͜ͱʹΑΓಉػͷ ࢟੎͕ෆ҆ఆͱͳΓɺͦͷޙͷमਖ਼ૢ࡞͕ ػटΛԼ͛Δ͜ͱͳ͘Τϧϩϯ͚ͩͰߦΘ ΕͨͨΊɺӈཌྷ͕ࣦ଎ঢ়ଶʹͳΓɺཪฦ͠ ͱͳͬͯ஍໘ʹিಥ ɾे෼ͳ଎౓Λ֬ೝͨ͠ޙʹ্ঢ ɾػମͷಛੑΛࣄલʹे෼೺Ѳͯ͠ඈߦ ΫϥϒϦϕϨ ӳࠃ ཭཮ޙٸܹͳ্ঢ࢟੎ͱͳΓɺ໿NͰε ϐϯɺ΄΅ਨ௚ʹ௢མ ཭཮௚ޙͷٸܹͳػट্͛ʹΑΔεϐϯ ɾΫϥϒϦϕϨ͕ࡧ֯Ͱͷ্ঢ֯Λ ͱΔͱࣦ︎଎︎LU LNI ͱͳΔͱ෼ੳ͞ Εͨ ϓϋονʢ೔ຊʣ ཭཮͔࣌Β︎଎౓͕஗͘ɺઙ͍֯౓Ͱ্ঢΛ ଓ͚͕ͨϐετ͔Βͷߴ౓໿NͰػट Λগ͔͛ͯ͠͞ΒεϐϯͰટస͠௢མɻ ໊ࢮ๢ɻ ڧ͍എ෩ʹ͓͚Δ཭཮্ঢͰ͋ͬͨͨΊ ʹɺे෼ͳରؾ︎଎౓͕ಘΒΕࣦͣ︎଎͠εϐ ϯʹؕΓ௿ߴ౓Ͱ͋ͬͨͨΊʹճ෮Ͱ͖ͣ ௢མɻ ɾഎ෩ͰͷӪߤ͕ཁҼ ɾഎ෩ͷݶքΛઃఆ͢Δ ɾҟৗӡߤ࣌ͷΠϯετϥΫλʔͷςΠΫΦ ʔόʔ ɾ΢ΟϯνυϥΠόʔΛؚΉ$3. ϓϋον ӳࠃ ΢ΟϯνӪߤͰ্ঢ͠໿NͰӪߤࡧ཭ ୤લʹεϐϯɺࠨટస͠ɺҰ୴ϦΧόʔ ͕ͨ͠ӈʹεϐϯ͠௢མɻ໊ࢮ๢ɻ ӪߤޙظͰͷػट্͛͗͢ ɾӪߤޙظͰ︎্ঢ֯Ͱ΋ࡧுྗͱػट্ ͛֯ͷؔ܎Ͱࣦ଎︎͢Δঢ়گ͕͋Δ ɾεϐϯճ෮ޙͷ্͛଩ʹΑΔ൓ରํ޲΁ ͷ࣍εϐϯ ɹද͸ɺʮ΢ΠϯνӪߤΨΠυϒοΫʙ҆શʹඈͿϊ΢ϋ΢ͱ$3.ʙ૬ౡਖ਼හɹ+︎"-(,1JTTVF ʯΛվగ ɹࠃ౔ަ௨লӡ༌҆શҕһձࣄނௐࠪใࠂॻ ɹl"DDJEFOUBM4QJOT0⒎8JODI-BVODIFTz#JMM4DVMM 4BJMQMBOF(MJEJOHͱͦͷ༁จ೔ޱ༟ೋ௡ٱҪ५ ͱ͸ӈࢀরɹIUUQXXXKTBMPSKQ QBHF@JE 14

΢ΠϯνӪߤதͷྗֶ 15 ग़యɿ΢ΠϯνӪߤΨΠυϒοΫʙ҆શʹඈͿϊ΢ϋ΢ͱ$3.ʙ૬ౡਖ਼හɹ+︎"-(,1JTTVF

΢ΠϯνӪߤதͷྗֶ w ࡧுྗҰఆͰӪߤͨ͠৔߹ɺ্ঢޙظʹ͸ுྗͱॏྗͷ߹ྗ͕ॏྗͷഒۙ͘ͳΔ w ߹ྗʹ௼Γ߹͏༲ྗ͕ൃੜ͠ɺՙॏഒ਺΋ഒͱͳΔ 16

΢ΠϯνӪߤதͷྗֶ ग़యɿ΢ΠϯνӪߤΨΠυϒοΫʙ҆શʹඈͿϊ΢ϋ΢ͱ$3.ʙ૬ౡਖ਼හɹ+︎"-(,1JTTVF 17

΢ΠϯνӪߤதͷྗֶ ग़యɿ΢ΠϯνӪߤΨΠυϒοΫʙ҆શʹඈͿϊ΢ϋ΢ͱ$3.ʙ૬ౡਖ਼හɹ+︎"-(,1JTTVF 18

5IF'JSTU'FX4FDPOET࠷ॳͷ਺ඵؒ ஶऀ1+(PVMUIPSQFग़య4BJMQMBOF(MJEJOH༁௡ٱҪ५ ݪจɺ༁จڞɹIUUQXXXKTBMPSKQ QBHF@JE 19 ϩʔςʔγϣϯதͷྗֶ ஍্׈૸தͷػट্͛Ϟʔϝϯτ ॏ৺ ுྗ ுྗ
ػट্͛ʹͭΕɺػट্͛ Ϟʔϝϯτ͕খ͘͞ͳΔ ॳظϑΣʔζ ্ঢܦ࿏֯ ϩʔςʔγϣϯ ཧ࿦্ͷൃߤ఺ ཭཮ ஍্׈૸ ஍্׈૸։࢝ ఆৗ্ঢ։࢝ ࡧҾํ޲ ʢ΄΅ਫฏʣ ɹ΢ΠϯνӪߤॳظɹɹɹ ɹɹɹఆৗ্ঢɹɹɹɹɹɹ ɹɹάϥΠμʔͷ଎౓ɹɹ άϥΠμʔʹಇ͘ྗͷ௼Γ߹͍ ର ؾ ଎ ౓ ࡧ଎౓ʴ޲෩଎౓ ॏྗ ுྗ ༲ ྗ ඈ ߦ ܦ ࿏ ࡧ଎౓͕େ͖͘ɺ্ঢ͕֯େ͖ ͍ఔɺରؾ଎౓͕େ͖͘ͳΔ ॏྗ͕େ͖͘ɺ্ঢ͕֯େ͖͍ఔɺ ுྗ͕େ͖͘ͳΔ

ϩʔςʔγϣϯதͷྗֶ 20 ுྗ ுྗ ඈߦܦ࿏ ɹɹػट্͛தɹɹɹɹ ɹɹɹάϥΠμʔͷՃ଎ɹɹɹɹ ɹɹɹྗͷ௼Γ߹͍ɹɹɹɹɹ ϩʔςʔ γϣϯ
ର ؾ ଎ ౓ ఆৗਫฏ଎౓ʢࡧ଎౓ʴ޲෩଎౓ʣ ਨ௚଎౓ͷ૿Ճ ͜͜ͰͷEFH͸େ͖ͳਨ௚଎౓૿ՃΛ΋ͨΒ͢ ͜͜ͰͷEFH͸খ͞ͳਨ௚଎౓૿ՃΛ΋ͨΒ͢ ଎౓ͷ૿Ճ͸ਨ௚ํ޲ʹൃੜ͢ΔͨΊɺՃ଎͸ਨ௚ํ޲Ͱ͋Γɺ ϩʔςʔγϣϯ֯଎౓ͱ্ঢ֯ʹԠͯ͡૿Ճ͢Δɻਨ௚Ճ଎౓͸ ػମͷݟ͔͚ͷॏ͞Λ૿Ճͤ͞Δɻ ػट্͛ͷॳظʀઙ্͍ঢɺখ͞ͳՃ଎ ʹখ͞ͳுྗ ػट্͛ͷޙظʀਂ্͍ঢɺେ͖ͳՃ଎ ʹେ͖ͳுྗ ਨ௚ํ޲ͷՃ଎ʹΑΓݟ͔͚ͷ ॏྔ͕૿Ճͨ͠ྗͷࡾ֯ܗ ਨ௚ํ޲ͷՃ଎͕ͳ͍ঢ়ଶͰͷ ྗͷࡾ֯ܗɺݟ͔͚ͷॏྔ͸ม ΘΒͳ͍ ॏྗ ༲ྗ ॏྗ ༲ ྗ ඈ ߦ ܦ ࿏ 5IF'JSTU'FX4FDPOET࠷ॳͷ਺ඵؒ ஶऀ1+(PVMUIPSQFग़య4BJMQMBOF(MJEJOH༁௡ٱҪ५ ݪจɺ༁จڞɹIUUQXXXKTBMPSKQ QBHF@JE

ॳظ্ঢதͷετʔϧ ΞυόΠεॳظ্ঢதͷετʔϧΛ๷͙ͨΊʹ w ػ࣠ͷͣΕ͕େ͖͍ঢ়ଶͰ཭཮͠ͳ͍ w ܧଓతͳՃ଎ͱڞʹద౓ͳ଎౓͕ಘΒΕΔ·Ͱɺઙ্͍ঢ࢟੎Λอͭ w ཭཮࣌ͷਫฏඈߦ͔ΒϑϧΫϥΠϜ ໿౓ ·ͰͷભҠΛίϯτϩʔϧ͠ɺ
গͣͭ͠ΞοϓΛऔΓɺͦͯ͠গͳ͘ͱ΋ભҠ࣌ؒΛඵ֬อ͢Δ ࣮༻తͳߟ࡯ɿ wܧଓతͳՃ଎Λײͭͭ͡ɺ଎౓ܭͷࣔ͢଎౓͕༧ΊܾΊΒΕͨ࠷௿҆શ଎౓ ࣦ଎଎౓ͷഒ ʹୡ͢Δ·Ͱɺઙ্͍ঢ࢟੎ d౓ Λอͭ w࠷௿҆શ଎౓ʹୡͨ͠Βɺద੾ͳϖʔεͰϑϧΫϥΠϜ΁ͱϐονΞοϓ͢Δ w଎౓ͷϞχλΛܧଓ w΋͠଎౓͕མͪΔΑ͏Ͱ͋Ε͹ϐονΞοϓͷϨʔτΛ஗͘͢Δ w΢Πϯνૢ࡞͕ద੾Ͱ͋Ε͹ɺ΄ͱΜͲͷάϥΠμʔ͸ɺࣗ཯తʹ҆શʹ཭཮ ্͠ঢ࢟੎΁ͱભҠͯ͠ߦ͘ 21 4BGF8JODI-BVODIJOH΢ΠϯνӪߤΛ҆શʹ #("4BGF8JODI-BVODIJOH*OJUJBUJWF༁௡ٱҪ५ IUUQXXXKTBMPSKQ QBHF@JE

ॳظ্ঢதͷετʔϧ άϥΠμʔλΠϓຖͷࡧ଎౓ͷ໨҆ ग़యɿWinching Operations, BGA, p.6 Recommended Cable Speed άϥΠμʔλΠϓ
ϑϧΫϥΠϜҠߦ଎౓ 7T ( ࠷খࡧ଎౓ ʢແ෩ʣ ਪ঑ࡧ଎౓ ʢਅՆഎ෩ʣ ,, LU LNI LU LNI LU LNI ,ܰྔ୯࠲ LU LNI LU LNI LU LNI , ελϯμʔυΫϥε LU LNI LU LNI LU LNI λʔϘػ ਫόϥετ౥ࡌػ LU LNI LU LNI LU LNI 22 ग़య8JODIJOH0QFSBUJPOT #(" Q3FDPNNFOEFE$BCMF4QFFE 7Tɿ(ͷঢ়ଶͰάϥΠμʔ͕ϑϧΫϥΠϜʹҠߦ͢Δ໨҆ w ΢Πϯνͷੑೳ͸ύϫʔ͚ͩͰ͸ͳ͍ʂ w ͋ͳͨͷΫϥϒͰ͋ͳ͕ͨ৐ΔάϥΠμʔΛҾ͍ͯ͜ͷ଎౓͕ग़ͤΔ͔ ֬ೝ͠Α͏ʂ

ϑΟʔτҎԼͷύϫʔϩε 23 ໰୊ɿ౓ͷ࢟੎Ͱ্ঢதʹLUͰࡧ͕੾Ε·ͨ͠ɻ଎౓Λճ෮͢ΔͨΊ੎͍Α͘ػ टΛԼ͛Δಈ࡞͕ඵ஗Εͯ͠·͏ͱɺͲΕ͘Β͍଎౓͕མͪͯ͠·͏Ͱ͠ΐ͏͔ʁ ˓ɹLU ˓ɹLU ˓ɹLU ໰୊ɿϑϧΫϥΠϜ࢟੎΁ͷҠߦதɺ7XΛ௒͑ͯ͠·ͬͨΒԿ͕ى͜ΔͰ͠ΐ͏͔ʁ ˓ɹϑϥολʔ ˓ɹԿ΋ى͖ͳ͍
˓ɹյΕΔՄೳੑ͕͋Δ ໰୊ɿ̵̑̌̓ͷߴ౓Ͱઙ্͍ঢ࢟੎ʹ͍Δͱ͖ɺ7XΛLU௒ա͢ΔLUͷ଎౓͕ ग़ͯ͠·ͬͨͱ͖ɺͲ͏ͨ͠ΒΑ͍Ͱ͠ΐ͏ʁ ˓ɹ཭୤͢Δ ˓ɹΞοϓΛ͖ͭ͘͢Δ ˓ɹϥμʔΛৼͬͯʮ΢Πϯν଎͍ʯͷ߹ਤΛ͢Δ ˓ɹԿ΋͠ͳ͍ IUUQTNFNCFSTHMJEJOHDPVLCHB TBGFUZNBOBHFNFOUTBGFXJODIJOH TBGFXJODIMBVODIJOHRVJ[ ग़య#("4BGF8JODI-BVODIJOH2VJ[

ϑΟʔτҎԼͷύϫʔϩε ΞυόΠεϑΟʔτҎԼͰͷύϫʔϩε͔ΒϦΧόϦʔ͢ΔͨΊʹ w Ӫߤෆྑ͕ൃੜͨ͠Βɺଈ࠲ʹػटΛԼ͛ద੾ͳϦΧόϦʔ࢟੎ʹೖΕΔ w ద੾ͳ࢟੎ͱ҆શͳ଎౓Λ֬อ͢Δ·Ͱ͸ɺΤΞϒϨʔΩΛ༻͍ͳ͍ w ϑΟʔτҎԼɺϊοτҎԼͰͷ໛ٖύϫʔϩε܇࿅͸ΠϯετϥΫ λʔσϞϯετϨʔγϣϯͷΈͱ͢Δ ࣮༻తͳߟ࡯ɿ
w લड़ͷ΢ΠϯνϓϩϑΝΠϧͷΨΠυϥΠϯʹै͏ w ԣ෩ͷ࣌ʹ͸ɺϑΟʔτʹୡ͔ͯ͠Βԣ෩मਖ਼ w ύϫʔϩε͕ൃੜͨ͠ΒɺػटΛ͢͹΍͘཈͑ͯɺదਖ਼ͳ࢟੎ʹɻඵ୯ ҐͰޮՌ͕ҟͳΔ w ஍ද໘ۙ͘ͰͷύϫʔϩεͰɺ଎౓͕ඇৗʹ஗͚Ε͹ɺΤΞϒϨʔΩͳ͠ ͰͷϥϯσΟϯάΛ 24 4BGF8JODI-BVODIJOH΢ΠϯνӪߤΛ҆શʹ #("4BGF8JODI-BVODIJOH*OJUJBUJWF༁௡ٱҪ५ IUUQXXXKTBMPSKQ QBHF@JE

ΞυόΠε w ϦΧόϦʔ࢟੎ʹೖΕΔ w Ξϓϩʔν଎౓͕ճ෮͢Δ·Ͱટճ΍ΤΞϒϨʔΩͷ࢖༻Λ߇͑Δ w લํ͕҆શͰ͋Ε͹ɺͦ͜ʹண཮͢Δ ࣮༻తͳߟ࡯ɿ w ϑϧΫϥΠϜத଎౓ͷݮগΛײͨ͡ΒɺૢॎᑈΛ؇ΊͯཌྷͷՙॏΛܰݮ
w ଎౓͕༧ΊܾΊΒΕͨԼݶΛԼճͬͨΒɺ཭୤ͯ͠ࡧ੾Εॲஔͷखॱʹै͏ w ύϫʔϩεޙϦΧόϦʔμΠϒ࢟੎ʹೖΕΔ w Ξϓϩʔν଎౓ͷճ෮·Ͱඵඞཁ w Ξϓϩʔν଎౓͕ճ෮ͨ͠ΒલΛݟͯɺ͕ͦ҆͜શͳΒͦͷ···͙ͬ͢ண ཮લํ͕҆શͰͳ͚Ε͹ɺ཭཮લʹܾΊ͓͍ͯͨํ޲΁ટճ w ͕࣌ؒڐͤ͹཭୤ૢ࡞ ύϫʔϩεʹҾ͖ଓ͘ετʔϧͱεϐϯ 25 4BGF8JODI-BVODIJOH΢ΠϯνӪߤΛ҆શʹ #("4BGF8JODI-BVODIJOH*OJUJBUJWF༁௡ٱҪ५ IUUQXXXKTBMPSKQ QBHF@JE

·ͱΊ εςʔδ ةݥ ճආࡦ ࣮ફ͢Δࣄ߲ ஍্׈૸ ཌྷ୺͕஍໘ʹͭ ͘ͱάϥΠμʔ ͸ଆస͢Δ͔ά ϥ΢ϯυϧʔϓ
ʹؕΔ w खΛϦϦʔεϊϒͷ্ʹஔ ͍ͯӪߤΛ࢝ΊΔ w ਫฏ͕อͯͳ͍ͱ͖͸ɺଈ ࠲ʹϦϦʔε͢Δ w ετϥοϓΛݻ͘కΊΔ w ྡͷࡧΛೝࣝ͢Δɻ஍্׈૸ தʹྡͷࡧʹ͍ۙͮͨΒࡧΛ ϦϦʔε͢Δ w ػ࣠ͣΕʹඋ͑Δ w ཌྷΛਖ਼͘͠อͭ w ཌྷ୺ͱڞʹ૸Δ w ཌྷͷਫฏΛ֬ೝ͢Δ w ཌྷ͕མԼͨ͠Β஍໘ʹͭ͘લ ʹϦϦʔε͢Δ w ॳΊͯͷܕࣜͰͷϑϥΠτ͸ Ժ΍͔ͳ৚݅ԼͰߦͳ͏ 26 w #("͕ॏ఺Λஔ͘΢ΠϯνࣄނཁҼผରࡦΛ·ͱΊΔ w ͜Ε·Ͱઆ໌͖ͯͨ͠Ҏ֎ͷཁҼʹ͍ͭͯ΋ࡌ͓ͤͯΓɺ#("Ωϟϯϖʔϯ ࢿྉͷख़ಡΛ͓קΊ͠·͢ 4BGF8JODI-BVODIJOH΢ΠϯνӪߤΛ҆શʹ #("4BGF8JODI-BVODIJOH*OJUJBUJWF༁௡ٱҪ५ IUUQXXXKTBMPSKQ QBHF@JE

·ͱΊ εςʔδ ةݥ ճආࡦ ࣮ફ͢Δࣄ߲ ॳظ্ঢ ্ঢॳظͰͷε τʔϧεϐϯ w ݦஶʹػ͕࣠ͣΕ͍ͯΔঢ়
ଶͰ཭཮͢Δ͜ͱΛආ͚ Δ w Ճ︎଎ͷܧଓΛײͭͭ͡ɺద ੾ͳ଎︎౓͕ಘΒΕΔ·ͰԺ ΍͔ͳ্ঢΛҡ࣋͢Δ w ཭཮࣌ͷਫฏඈߦ͔Βϑϧ ΫϥΠϜ ໿౓ ΁ͷ ભҠΛঃʑʹߦͳ͍ɺগ ͳ͘ͱ΋ඵ͸࣌ؒΛ͔ ͚Δ w ߥΕͨ஍໘΍എ෩Ͱͷ஍্׈ ૸Λ୹͘͢ΔͨΊʹૢॎᑈΛ Ҿ͔ͳ͍ w े෼ͳ︎଎౓͕ಘΒΕΔ·ͰԺ ΍͔ͳ্ঢΛอͭͨΊʹૢॎ ᑈΛલʹ౗͢͜ͱ͕ඞཁͰ͋ Ε͹ɺͦΕΛߦͳ͏ w ରؾ︎౓ΛϞχλʔ͠ඞཁͳΒ ϐονΞοϓϨʔτΛԼ͛Δ 27 4BGF8JODI-BVODIJOH΢ΠϯνӪߤΛ҆શʹ #("4BGF8JODI-BVODIJOH*OJUJBUJWF༁௡ٱҪ५ IUUQXXXKTBMPSKQ QBHF@JE

·ͱΊ εςʔδ ةݥ ճආࡦ ࣮ફ͢Δࣄ߲ ॳظ্ঢ ϑΟʔτҎ ԼͰͷӪߤෆྑ ޙͷετʔϧ΋ ͘͠͸ϋʔυϥ
ϯσΟϯά w ӪߤෆྑͱͳͬͨΒଈ࠲ʹ ద੾ͳϦΧόϦʔ࢟੎΁ͱ ػटΛԼ͛Δɻ൓Ԡ࣌ؒΛ ࠷খԽ͢Δ͜ͱ͕ॏཁͰ͋ Δ w ద੾ͳ࢟੎ͱͳΓे෼ͳ︎଎ ౓ΛಘΔ·ͰΤΞϒϨʔΩ Λ࢖Θͳ͍ w ϑΟʔτҎԼɺϊ οτҎԼͰͷӪߤෆྑͷ໛ ٖ͸ΠϯετϥΫλʔʹΑ ΔσϞͷΈͱ͢Δ w ϑΟʔτҎԼͰԣ෩ʹର ͢Δภྲྀमਖ਼ΛߦͳΘͳ͍ w ଎౓͕௒աͯ͠΋ࡧΛϦϦʔε ͠ͳ͍ɻ਺ඦϑΟʔτ·ͰԺ ΍͔ͳ্ঢΛҡ࣋͠ɺͦͷޙ ϦϦʔε͢Δ͔߹ਤΛૹΔ w ΤΞϒϨʔΩΛΫηͰ։͚ͯ ͠·͏͜ͱʹؾΛ͚ͭΔ͜ ͱɻӪߤෆྑ࣌͸஫ҙͯ͠࢖ ͏͔ɺ·ͬͨ͘࢖Θͳ͍͜ͱ w ࡧΛϦϦʔε͠ͳ͍͜ͱɻࣗ વ཭୤͢Δʹ೚ͤΔ͜ͱ 28 4BGF8JODI-BVODIJOH΢ΠϯνӪߤΛ҆શʹ #("4BGF8JODI-BVODIJOH*OJUJBUJWF༁௡ٱҪ५ IUUQXXXKTBMPSKQ QBHF@JE

·ͱΊ εςʔδ ةݥ ճආࡦ ࣮ફ͢Δࣄ߲ ্ঢதظ Ӫߤෆྑޙͷɺ ετʔϧɺεϐ ϯɺϔϏʔϥϯ σΟϯά
w ϦΧόϦʔ࢟੎ʹೖΕΔɻ े෼ͳ︎଎౓ΛಘΔ·Ͱટճ ͨ͠ΓΤΞϒϨʔΩΛ࢖ͬ ͨΓ͠ͳ͍ w લํͷ҆શ͕֬ೝͰ͖ͨΒ ண཮͢Δ w ରؾ଎︎౓͕Լ͕ͬͨΒɺཌྷͷ ՙॏΛݮͣΔɻରؾ︎౓͕ετ ʔϧ︎଎౓ͷഒҎԼʹԼ͕ ͬͨΒϦϦʔε͢Δ͜ͱΛߟ ྀ͢Δ w Ξϓϩʔν଎︎౓·ͰՃ︎͢Δͨ ΊͷϦΧόϦʔμΠϒ͸໿ ඵΛཁ͢Δ Ӫߤෆྑޙʹί ϯτϩʔϧΛճ ෮͢Δ͕Ҿ͖ଓ ͘ετʔϧɺΞ ϯμʔγϡʔ τɺΦʔόʔγ ϡʔτɺϔϏʔ ϥϯσΟϯάɺ িಥ w ཭཮લʹ༷ʑͳ৔߹ʹඋ͑ ͯɺෳ਺ͷ৔पύλʔϯΛ ༻ҙ͢Δ w ܇࿅தʹɺ܇࿅ੜ͕ϛεͨ͠ ΒɺΠϯετϥΫλʔ͸ૣ͍ ஈ֊ͰૢॎΛςΠΫΦʔό͢Δ ͜ͱ 29 4BGF8JODI-BVODIJOH΢ΠϯνӪߤΛ҆શʹ #("4BGF8JODI-BVODIJOH*OJUJBUJWF༁௡ٱҪ५ IUUQXXXKTBMPSKQ QBHF@JE

զʑ͸Կ͕Ͱ͖ΔͩΖ͏͔ʁԿΛ͢΂͖͔ʁ 30 ձ৔ͷօ͞ΜͱϑϦʔσΟεΧογϣϯ

౦ژ޻ۀେֶ౦ژཧՊେֶֶशӃେֶ΢ΠϯνಋೖϓϩδΣΫτ Ӫߤࢼݧ੒ޭΛه೦ͯ͠ ೥݄೔ˏؔ॓׈ۭ৔ ͝ਗ਼ௌͱҙݟަ׵͋Γ͕ͱ͏͍͟͝·ͨ͠ 31

#BDLVQ$IBSU 32

ղ౴ܦݧͷઙ͍ύΠϩοτ ୯ಠඈߦͰ͜ͷλΠϓͷࣄނʹૺ۰͢ΔύΠϩοτͷ͏ͪ͸࣌ؒະຬͷܦݧ͔͋͠Γ·ͤΜɻ ͭ·Γɺࣄނͷൃੜ཰͸ڭҭ΍܇࿅Ͱݮগͤ͞Δ͜ͱ͕Ͱ͖Δɺͱݴ͑ΔͰ͠ΐ͏ɻ ղ౴ετʔϧͱϑϦοΫϩʔϧ ରؾ︎଎౓͕஗͘ϐονΞοϓͷϨʔτ͕ૣ͍ͱɺࡧ͕͍͍ͭͯͯ΋άϥΠμʔ͸ετʔϧ΍εϐϯʹؕΓɺக໋త ͳࣄނʹࢸΓ·͢ɻ (ͷετʔϧ︎଎౓͕LUͰ͋ΔάϥΠμʔ͸ɺ౓ඵͰϐονΞοϓ͢Δͱ ཭཮࣌ͷਫฏ࢟੎͔ΒඵͰ ౓ͷ্ঢ࢟੎ʹೖΕΔ͜ͱʹ૬౰ ɺ໿LUͰࣦ଎͠·͢ɻ
ղ౴ετʔϧͱεϐϯ ਺ඦGUͷߴ౓Ͱਂ্͍ঢ࢟੎தʹύϫʔϩε͕ى͖ΔͱɺϦΧόϦʔμΠϒͷॳظʹ࢟੎͕େৎ෉ͦ͏ʹݟ͑ͯ ΋ɺ଎︎౓͸ετʔϧ଎︎౓ҎԼͱͳ͍ͬͯΔՄೳੑ͕͋Γ·͢ɻΞϓϩʔν଎︎౓Λճ෮͢Δ·ͰϦΧόϦʔμΠϒ Λҡ࣋͢Δ͜ͱ͕ॏཁͰ͢ɻՃ︎଎ΛಘΔલʹૢ࡞Λͯ͠͠·͏ͱετʔϧ΍εϐϯʹؕΔ৔߹͕͋Γ·͢ɻ 33 IUUQTNFNCFSTHMJEJOHDPVLCHB TBGFUZNBOBHFNFOUTBGFXJODIJOHTBGF XJODIMBVODIJOHRVJ[ ग़య#("4BGF8JODI-BVODIJOH2VJ[ ΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ

ղ౴ɿLU ඵ஗ΕΔͱػटԼ͛ͯ͠΋଎౓͸LUʹ͔͠ͳΓ·ͤΜɻάϥΠμʔ͸ετʔϧ͠Ϋϥογϡͯ͠͠·͏͔΋͠Ε ·ͤΜɻ ύϫʔϩεޙଈ࠲ʹػटΛԼ͛Δ͜ͱ͸҆શͳϦΧόϦʔʹແͯ͘͸ͳΒͳ͍ૢ࡞Ͱ͢ɻϦΞΫγϣϯ࣌ؒΛඵ Ҏ಺ʹ཈͑Δ͜ͱ͕Ͱ͖Ε͹ɺػटԼ͛Λऴ͑ͨ࣌఺Ͱͷ଎౓͸LUʹͳΓ·͢ɻ ղ౴ɿԿ΋ى͖ͳ͍ ΢ΠϯνӪߤͷऴ൫ͰύΠϩοτ͕໨ҰഋΞοϓҰഋΛऔ͍ͬͯΔͱ͖ɺάϥΠμʔ͕ͻͲ্͍ํ޲΁ͷΨετʹݟ ෣ΘΕͨͱ͖ɺػମΛकΔͨΊʹ7X͕ઃఆ͞Ε͍ͯ·͢ɻ Ӫߤͷ࠷ॳͷ෼ͷ̍Ͱ͸ߏ଄ʹ͔͔ΔετϨε͸Ժ΍͔ͳͷͰɺ7XΛͱ͖Ͳ͖௒͑Δఔ౓Ͱ͋Ε͹ɺ஫ҙ͓ͯ͠ ͘͘Β͍Ͱྑ͍Ͱ͠ΐ͏ɻ
ղ౴ɿԿ΋͠ͳ͍ ਺ඦGU·Ͱ্ঢ͔ͯ͠ΒϦϦʔε͢Δ͔ɺ଎౓௒ա͕Ժ΍͔ʹͳ͔ͬͯΒ߹ਤΛૹΓ·͠ΐ͏ɻ ϦϦʔε͢Δͱࡧ୺ͷύϥγϡʔτ͕։͖ɺࡧ͕ཌྷ΍ඌ෦ʹר͖͍ͭͯ͠·͍·͢ɻΞοϓΛ͖ͭ͘͢Δͱώϡʔζ ͕ഁஅ͠ɺϦΧόϦʔ͕೉͘͠ͳΔͰ͠ΐ͏ɻ߹ਤΛ͢Δͱඌ෦ʹաେͳετϨεΛ͔͚Δ͜ͱʹͳΓ·͢ɻ ※ ༁ऀ஫ɿɹແઢΛ࢖Θͳ͍৔߹ͷ߹ਤͱͯ͠ɺʮ଎͍ʯ͸ϥμʔͰࠨӈʹඌ෦ΛৼΓɺʮ஗͍ʯ͸ΤϧϩϯͰओཌྷ ΛࠨӈʹৼΔ͜ͱ͕ߦΘΕΔɻ͜ͷํ๏͸ແઢ͕࢖͑ͳ͍৔߹Ҏ֎ʹ͸ਪ঑͞Εͳ͍ɻ 34 IUUQTNFNCFSTHMJEJOHDPVLCHB TBGFUZNBOBHFNFOUTBGFXJODIJOHTBGF XJODIMBVODIJOHRVJ[ ग़య#("4BGF8JODI-BVODIJOH2VJ[ ϑΟʔτҎԼͷύϫʔϩε

ϩʔςʔγϣϯதͷྗֶ ʲ஍্׈૸ʳ ཭཮લͷՃ଎͸શͯ΢ΠϯνΦϖϨʔλʹΑ੍ͬͯޚ͞Εɺ஍্׈૸தͷՃ ଎౓͸͓Αͦ(ɻͦͷՃ଎౓Ͱ଎౓Λ૿Ճͤͯ͞Ώ͘ͱɺάϥΠμʔ͸ ඵҎ಺ɺ஍্׈૸ڑ཭ʹͯ͠GUҎ಺Ͱ཭཮଎౓ʹୡ͢Δɻ ࡧͷுྗ͸ɺάϥΠμʔͷԼํɺॏ৺ͷԼͷ࡞༻఺ ϨϦʔζҐஔ Ͱਫฏํ ޲ʹಇͨ͘Ίɺػट্͛ͷϞʔϝϯτ͕ൃੜ͢Δɻ΋͠ɺύΠϩοτ͕͜Ε Λೝ͍ࣝͯ͠ͳ͚Ε͹ɺ཭཮଎౓ʹୡ͢Δ΍൱΍ա౓ͷػट্͕͛ى͜Δ
ਤB ɻࡧͷுྗ͸ͦͷ͏ͪॏ৺ͷۙ͘Λ௨Γɺෆඞཁͳػट্͛Ϟʔϝ ϯτΛݮΒ͠ɺͦͯ͠άϥΠμ͸ίϯτϩʔϧΛऔΓ໭͢ʢਤCʣɻ 35 5IF'JSTU'FX4FDPOET࠷ॳͷ਺ඵؒ ஶऀ1+(PVMUIPSQFग़య4BJMQMBOF(MJEJOH༁௡ٱҪ५ ݪจɺ༁จڞɹIUUQXXXKTBMPSKQ QBHF@JE

ϩʔςʔγϣϯதͷྗֶ ʲػट্͛ʳ ΢ΠϯνΦϖϨʔλ͕ࡧͷ଎౓ΛҰఆʹอͬͨঢ়ଶͰɺࠓ౓͸཭཮ޙͷՃ ଎౓ͷίϯτϩʔϧΛύΠϩοτ͕୲͏ɻύΠϩοτ͕άϥΠμʔΛ্ঢ ࢟੎ʹೖΕͯߦ͘ͱɺ଎౓͕૿Ճͯ͠ߦ͘ɻ͞Βʹ࢟੎͕֯ਂ͘ͳΔʹͭ ΕͯͦͷӨڹ͸ΑΓݦஶʹͳΔɻ্ঢ͕ඇৗʹٸ֯౓Ͱ͋Ε͹ɺ࢟੎ͷΘ ͔ͣͳมԽ͕େ͖ͳ଎౓ͷมԽΛ΋ͨΒ͢ ਤD ɻͦͷͨΊʹɺ্ঢ͕֯ ਂ͘ͳΕ͹ͳΔ΄Ͳɺػट্͛ʹΑͬͯάϥΠμʔͷ଎౓͕ΑΓ଎͘ͳ
Δɻ୹͍ػट্͛ͷؒɺࡧ͸͓ΑͦਫฏͰɺάϥΠμʔͷ଎౓ͷਫฏ੒෼ ͸มԽͤͣɺҰఆͷࡧͷ଎౓ ޲͔͍෩ͷ଎౓ʹ౳͘͠ͳΔɻ଎౓ͷશͯ ͷ૿Ճ෼͸ਨ௚ํ޲ʹൃੜ͢ΔɻΑͬͯػट্͛தɺάϥΠμʔͷՃ଎౓ ͷશͯ͸ਨ௚ํ޲ʹൃੜ͢Δɻਨ௚Ճ଎౓ͷӨڹ͸άϥΠμʔͷॏྔΛ૿ Ճͤ͞Δɻྫ͑͹ɺਨ௚ํ޲ͷ(͸ɺάϥΠμʔͷॏྔΛͦͷ൒෼ఔ ૿Ճͤ͞Δɻ 36 5IF'JSTU'FX4FDPOET࠷ॳͷ਺ඵؒ ஶऀ1+(PVMUIPSQFग़య4BJMQMBOF(MJEJOH༁௡ٱҪ५ ݪจɺ༁จڞɹIUUQXXXKTBMPSKQ QBHF@JE

ϩʔςʔγϣϯதͷྗֶ ʲػट্͛ʳʢଓ͖ʣ Ӫߤதͷ͋ΒΏΔ఺ͰɺάϥΠμʔʹಇͭ͘ͷྗɺͭ·Γॏྔɺࡧுྗɺ༲ྗ ͕όϥϯεͯ͠௼Γ߹͍ͷࡾ֯ܗΛܗ࡞Δɻॏྔ͸ਨ௚Լํʹɺ ӪߤॳظͰ ͸ ࡧுྗ͸ਫฏʹɺ༲ྗ͸ ͍ͭͰ΋ͦ͏͕ͩ ඈߦܦ࿏ʹਨ௚ʹಇ͘ ਤC
ɻ Αͬͯɺඈߦܦ࿏͕ਂ͘ͳΔఔɺ௼Γ߹͍ͷࡾ֯ܗ͸ͦͷܗΛม͑ɺࡧுྗͱ ༲ྗ͕ॏྔͱͱ΋ʹ૿͑ͯߦ͘ɻͭ·Γɺਨ௚Ճ଎౓Ͱॏྔ͕૿͑Ε͹ɺಉ͡ ൺ཰Ͱࡧுྗͱ༲ྗ΋૿͑Δ ਤD ɻ Αͬͯػट্͛ͷؒɺࡧுྗ͸ɺ্ঢ֯ͷ૿Ճʹ൐ͬͯ૿͑Δ͚ͩͰͳ͘ɺՃ ଎౓ͦΕࣗମʹΑͬͯ΋͞Βʹ૿Ճ͢Δ ಉ༷ʹಉ͜͡ͱ͕༲ྗ΍ཌྷ໘ՙॏʹ΋ ى͜Δ ɻάϥΠμʔ͕ػट্͛͠ɺ࢟੎͕ਂ͘ͳΔఔɺࡧுྗ͸ٸ଎ʹେ͖͘ ͳΓɺػट্͛ͷϨʔτʹහײʹͳΔɻͦͷͨΊɺٸܹͳػट্͛͸ࡧʹաେ ͳՙॏΛ͔͚ɺա౓ͳࡧுྗ͕͔͔Βͳ͍Α͏ͳ্ঢ࢟੎ʹ͓͍ͯ΋ɺࡧ΋͠ ͘͸΢ΠʔΫϦϯΫΛഁஅͯ͠͠·͏Մೳੑ͕͋ΔɻӪߤதͷ࠷΋ΫϦςΟΧ ϧͳॠؒ͸ɺॳظͷ্ঢ࢟੎Λཱ֬ͤͯ͞ɺ࢟੎͕࠷΋ਂ͘ͳͬͨ࣌ʹͳΔɻ ͜ͷϙΠϯτ͕ۙͮ͘ʹͭΕͯػट্͛ͷϨʔτΛݮΒͯ͠Ώ͘ͷ͕࠷ྑͷํ ๏ͱͳΔɻ 37 5IF'JSTU'FX4FDPOET࠷ॳͷ਺ඵؒ ஶऀ1+(PVMUIPSQFग़య4BJMQMBOF(MJEJOH༁௡ٱҪ५ ݪจɺ༁จڞɹIUUQXXXKTBMPSKQ QBHF@JE

安全なウインチ曳航の理論と実践/JSA 2021 Safety winch seminar

安全なウインチ曳航の理論と実践/JSA 2021 Safety winch seminar

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҆શͳ΢ΠϯνӪߤͷ ཧ࿦ͱ࣮ફ ೥݄෱Ԭʗ݄ࡳຈ ౦ژ޻ۀେֶɹߤۭݚڀ෦0#ձ ௡ٱҪɹ५ 1

ࣗݾ঺հ ΢Πϯν҆શ׆ಈΛ࢝ΊΔ͖͔͚ͬͱͳͬͨग़དྷࣄ ӳࠃͱ೔ຊͷ΢Πϯνࣄނ౷ܭൺֱ ΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ ΢ΠϯνӪߤதͷྗֶ

ࣗݾ঺հ w ೥ɿಢ໦ݝ଍རࢢੜ·Ε w ೥ɿ౦ژ޻ۀେֶɹٕज़ձߤۭݚڀ෦ೖ෦ ɹɹࡏֶத͸ඈͿ͜ͱΑΓ΋΢Πϯν੡࡞ʹ຅಄ w ೥ɿ౦޻େࣜ̎࿈΢Πϯν׬੒ w

΢Πϯν҆શ׆ಈΛ࢝ΊΔ͖͔͚ͬͱͳͬͨग़དྷࣄ ؙҪຬஶʮ෩Λௌ͚ʯΑΓ w ೥݄೔࠺প׈ۭ৔ w ͜ͷ೥͸കӍ͕໌͚ͣӍ͕߱ͬͨΓࢭΜͩΓͷຖ೔ w ౰࣌೥ੜɺೖ෦ͯ̎͠ճ໨ͷ߹॓ʢ̐ճͷඈߦܦݧʣɺ ɹɹ೥ੜͷॳιϩʹཱͪձ͏ w

ӳࠃͱ೔ຊͷ΢Πϯνࣄނ౷ܭൺֱ

ӳࠃͱ೔ຊͷ΢Πϯνࣄނ౷ܭൺֱ ࢮ๢΋͘͠͸ॏ঱ ೔ຊʢʣ ճͷ΢ΠϯνӪߤʹਓ ӳࠃʢʣ ճͷ΢ΠϯνӪߤʹਓ ࢮ๢΋͘͠͸ॏ঱ ೔ຊʢʣ

8 ೥౓׈ۭεϙʔπߨशձ&.'5ֶՊࢿྉʢᓎҪྰࢠࢯʣΑΓ

The fatal and serious injury winch accident rate in the

໰୊ϑϧΫϥΠϜ΁ٸ︎ʹϐονΞοϓ͢Δͱɺࡧ੾ΕҎ֎ͰͲͷΑ͏ͳةݥ ͕͋Γ·͔͢ ˓︎଎౓ൈ͚ ˓ετʔϧͱϑϦοΫϩʔϧ ΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ IUUQTNFNCFSTHMJEJOHDPVLXQDPOUFOUVQMPBETTJUFT @qJDLNQ 12 IUUQTNFNCFSTHMJEJOHDPVLCHBTBGFUZ

໰୊ϑϧΫϥΠϜதͷύϫʔϩε ΢Πϯνނো΍ࡧ੾ΕͳͲ ʹىҼ͢Δ ةݥ͸Կ͕͋ΔͰ͠ΐ͏͔ ˓ϥϯσΟϯάதͷΦʔόʔγϡʔτ΍Ξϯμʔγϡʔτɺ͋Δ͍͸িಥ ˓ετʔϧͱεϐϯ ΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ IUUQTNFNCFSTHMJEJOHDPVLXQDPOUFOUVQMPBETTJUFT @TQJONQ

΢ΠϯνӪߤதͰ࠷΋ଟ͍ࣄނཁҼ͸Կ͔ʁ ࣄྫ ݪҼ ʢࣄނௐࠪใࠂॻ౳ʣ ཁҼͱରࡦ ΫϥϒϦϕϨʢ೔ຊʣ ॳظ্ঢ࣌ɺߴ౓dNͰӈʹ܏͖൓స ͠௢མɻࢮ๢ɻ ΢Πϯνൃߤதʹద੾ͳ଎౓Λ֫ಘ͠ͳ͍

΢ΠϯνӪߤதͷྗֶ 15 ग़యɿ΢ΠϯνӪߤΨΠυϒοΫʙ҆શʹඈͿϊ΢ϋ΢ͱ$3.ʙ૬ౡਖ਼හɹ+︎"-(,1JTTVF

΢ΠϯνӪߤதͷྗֶ w ࡧுྗҰఆͰӪߤͨ͠৔߹ɺ্ঢޙظʹ͸ுྗͱॏྗͷ߹ྗ͕ॏྗͷഒۙ͘ͳΔ w ߹ྗʹ௼Γ߹͏༲ྗ͕ൃੜ͠ɺՙॏഒ਺΋ഒͱͳΔ 16

΢ΠϯνӪߤதͷྗֶ ग़యɿ΢ΠϯνӪߤΨΠυϒοΫʙ҆શʹඈͿϊ΢ϋ΢ͱ$3.ʙ૬ౡਖ਼හɹ+︎"-(,1JTTVF 17

΢ΠϯνӪߤதͷྗֶ ग़యɿ΢ΠϯνӪߤΨΠυϒοΫʙ҆શʹඈͿϊ΢ϋ΢ͱ$3.ʙ૬ౡਖ਼හɹ+︎"-(,1JTTVF 18

5IF'JSTU'FX4FDPOET࠷ॳͷ਺ඵؒ ஶऀ1+(PVMUIPSQFग़య4BJMQMBOF(MJEJOH༁௡ٱҪ५ ݪจɺ༁จڞɹIUUQXXXKTBMPSKQ QBHF@JE 19 ϩʔςʔγϣϯதͷྗֶ ஍্׈૸தͷػट্͛Ϟʔϝϯτ ॏ৺ ுྗ ுྗ

ϩʔςʔγϣϯதͷྗֶ 20 ுྗ ுྗ ඈߦܦ࿏ ɹɹػट্͛தɹɹɹɹ ɹɹɹάϥΠμʔͷՃ଎ɹɹɹɹ ɹɹɹྗͷ௼Γ߹͍ɹɹɹɹɹ ϩʔςʔ γϣϯ

ॳظ্ঢதͷετʔϧ ΞυόΠεॳظ্ঢதͷετʔϧΛ๷͙ͨΊʹ w ػ࣠ͷͣΕ͕େ͖͍ঢ়ଶͰ཭཮͠ͳ͍ w ܧଓతͳՃ଎ͱڞʹద౓ͳ଎౓͕ಘΒΕΔ·Ͱɺઙ্͍ঢ࢟੎Λอͭ w ཭཮࣌ͷਫฏඈߦ͔ΒϑϧΫϥΠϜ ໿౓ ·ͰͷભҠΛίϯτϩʔϧ͠ɺ

ॳظ্ঢதͷετʔϧ άϥΠμʔλΠϓຖͷࡧ଎౓ͷ໨҆ ग़యɿWinching Operations, BGA, p.6 Recommended Cable Speed άϥΠμʔλΠϓ

ΞυόΠε w ϦΧόϦʔ࢟੎ʹೖΕΔ w Ξϓϩʔν଎౓͕ճ෮͢Δ·Ͱટճ΍ΤΞϒϨʔΩͷ࢖༻Λ߇͑Δ w લํ͕҆શͰ͋Ε͹ɺͦ͜ʹண཮͢Δ ࣮༻తͳߟ࡯ɿ w ϑϧΫϥΠϜத଎౓ͷݮগΛײͨ͡ΒɺૢॎᑈΛ؇ΊͯཌྷͷՙॏΛܰݮ

·ͱΊ εςʔδ ةݥ ճආࡦ ࣮ફ͢Δࣄ߲ ஍্׈૸ ཌྷ୺͕஍໘ʹͭ ͘ͱάϥΠμʔ ͸ଆస͢Δ͔ά ϥ΢ϯυϧʔϓ

·ͱΊ εςʔδ ةݥ ճආࡦ ࣮ફ͢Δࣄ߲ ॳظ্ঢ ্ঢॳظͰͷε τʔϧεϐϯ w ݦஶʹػ͕࣠ͣΕ͍ͯΔঢ়

·ͱΊ εςʔδ ةݥ ճආࡦ ࣮ફ͢Δࣄ߲ ॳظ্ঢ ϑΟʔτҎ ԼͰͷӪߤෆྑ ޙͷετʔϧ΋ ͘͠͸ϋʔυϥ

·ͱΊ εςʔδ ةݥ ճආࡦ ࣮ફ͢Δࣄ߲ ্ঢதظ Ӫߤෆྑޙͷɺ ετʔϧɺεϐ ϯɺϔϏʔϥϯ σΟϯά

զʑ͸Կ͕Ͱ͖ΔͩΖ͏͔ʁԿΛ͢΂͖͔ʁ 30 ձ৔ͷօ͞ΜͱϑϦʔσΟεΧογϣϯ

౦ژ޻ۀେֶ౦ژཧՊେֶֶशӃେֶ΢ΠϯνಋೖϓϩδΣΫτ Ӫߤࢼݧ੒ޭΛه೦ͯ͠ ೥݄೔ˏؔ॓׈ۭ৔ ͝ਗ਼ௌͱҙݟަ׵͋Γ͕ͱ͏͍͟͝·ͨ͠ 31

#BDLVQ$IBSU 32

ϩʔςʔγϣϯதͷྗֶ ʲػट্͛ʳʢଓ͖ʣ Ӫߤதͷ͋ΒΏΔ఺ͰɺάϥΠμʔʹಇͭ͘ͷྗɺͭ·Γॏྔɺࡧுྗɺ༲ྗ ͕όϥϯεͯ͠௼Γ߹͍ͷࡾ֯ܗΛܗ࡞Δɻॏྔ͸ਨ௚Լํʹɺ ӪߤॳظͰ ͸ ࡧுྗ͸ਫฏʹɺ༲ྗ͸ ͍ͭͰ΋ͦ͏͕ͩ ඈߦܦ࿏ʹਨ௚ʹಇ͘ ਤC