2022 Fiscal Year Final Research Report
Complete history research on the molding beauty and technology of 4,000 years of East Asian bronze crafts and sculptures by verifying high-definition 3D data
| Project/Area Number |
16H01918
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Art at large
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| Research Institution | University of Toyama |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
三宮 千佳 富山大学, 学術研究部芸術文化学系, 准教授 (10454125)
長柄 毅一 富山大学, 学術研究部芸術文化学系, 教授 (60443420)
村田 聡 富山大学, 学術研究部芸術文化学系, 教授 (70219921)
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| Project Period (FY) |
2016-04-01 – 2021-03-31
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| Keywords | 古代鋳造技術史 / ３D計測 / 計測点間距離0.02㎜ / ポリゴンデータ解析 / 検証図 / 鋳造痕跡 |
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| Outline of Final Research Achievements |
East Asian bronzes developed in ancient China and spread to surrounding areas. The molding was more complex and elaborate than other regions. The casting technology of ancient China, which realized modeling, was the most highly developed in the world. Over the years, many researchers have observed the unearthed bronze ware and attempted to elucidate this advanced technology, but many have remained unsolved. The reason for this was that the exact shape of bronze ware could not be grasped scientifically, so it was not possible to get to the heart of the matter for a long time. By 3D measurement, we obtained detailed shape data of bronzeware and molds, and verified it with analysis software. In this way, we were able to uncover open issues. I investigated the inside of bronze sculptures of the early modern period and clarified the parts assembly technique in the era when there was no welding technique.
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| Free Research Field |
古代鋳造技術史
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| Academic Significance and Societal Importance of the Research Achievements |
青銅器は錆に保護されて内部が健全で微細な紋様も残り、歴史研究の重要な遺物だ。しかし、鋳造技術は複雑な工程が多く、未経験者には技術の具体が想像できない。また、複雑で微小な紋様形状を正確に記録する方法が無かった。そのため、確実な成果をあげることができなかったが、本研究では鋳造技術者が、世界で初めて計測最短距離0.02㎜の高精細3D計測データを解析ソフトで、断面図や抜け勾配図、厚み分布図、形状重ね図などを作成し、さらに微細形状を拡大して技術痕跡を検討した。また、江戸時代の大型鋳銅仏の像内に入り、部品のつなぎ方法や組み立て手順を明らかにし、古代から近世のポイントとなる鋳造技術を解明した。
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