{
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  "endpoint": "timeline",
  "stock_code": "6371",
  "company_name": "椿本チエイン",
  "content_lang": "ja",
  "meta_lang": "en",
  "canonical_url": "https://the-shashi.com/tse/6371/",
  "api_url": "/api/6371/timeline.json",
  "updated": "2026-08-15",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/6371/",
  "source": {
    "primary": [
      "有価証券報告書",
      "公式サイト沿革"
    ],
    "extraction": "有価証券報告書の沿革を基礎に、社史・報道で補完",
    "row_field": "source"
  },
  "timeline": [
    {
      "date": "1917/12",
      "importance": 3,
      "event": "初代社長椿本説三の個人経営として大阪府西成郡に創業",
      "source": "有価証券報告書"
    },
    {
      "date": "1923",
      "importance": 3,
      "event": "機械用ローラチェーンの製造を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1924",
      "importance": 2,
      "event": "コンベヤチェーンの製造を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1937",
      "importance": 2,
      "event": "大規模なコンベヤプラント一式を納入",
      "source": "有価証券報告書"
    },
    {
      "date": "1940/5",
      "importance": 1,
      "event": "大阪市旭区に本社工場を建設",
      "source": "有価証券報告書"
    },
    {
      "date": "1941/1",
      "importance": 2,
      "event": "個人組織を株式会社椿本チヱイン製作所に改組",
      "source": "有価証券報告書"
    },
    {
      "date": "1949/5",
      "importance": 1,
      "event": "大阪証券取引所・東京証券取引所に株式を上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1958/4",
      "importance": 3,
      "event": "自動車用タイミングチェーンの量産を開始",
      "source": "有価証券報告書"
    },
    {
      "date": "1961/2",
      "importance": 1,
      "event": "名古屋証券取引所に株式を上場",
      "source": "有価証券報告書"
    },
    {
      "date": "1962/3",
      "importance": 1,
      "event": "埼玉県飯能市に埼玉工場を建設",
      "source": "有価証券報告書"
    },
    {
      "date": "1965/10",
      "importance": 2,
      "event": "ボルグ・ワーナー社との合弁会社椿本モールスを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1970",
      "importance": 1,
      "event": "台湾に初の海外拠点となる合弁会社を設立",
      "source": "公式サイト沿革"
    },
    {
      "date": "1970/4",
      "importance": 2,
      "event": "社名を椿本チエインに変更",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/1",
      "importance": 1,
      "event": "京都府長岡京市に京都工場を建設",
      "source": "有価証券報告書"
    },
    {
      "date": "1971/3",
      "importance": 1,
      "event": "米国にTSUBAKIMOTO U.S.A.を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1982/8",
      "importance": 1,
      "event": "兵庫県加西市に兵庫工場を建設",
      "source": "有価証券報告書"
    },
    {
      "date": "1983/7",
      "importance": 1,
      "event": "米国にTSUBAKI CONVEYOR OF AMERICAを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1984/10",
      "importance": 3,
      "event": "エマソン・エレクトリック社との合弁で椿本エマソンを設立",
      "source": "有価証券報告書"
    },
    {
      "date": "1986",
      "importance": 2,
      "event": "米国子会社によるユニオンチェーンの買収",
      "source": "公式サイト沿革"
    },
    {
      "date": "1989",
      "importance": 2,
      "event": "米国子会社でタイミングチェーンの現地生産を開始",
      "source": "公式サイト沿革"
    },
    {
      "date": "2001/6",
      "importance": 2,
      "event": "京都府京田辺市に京田辺工場を建設",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/3",
      "importance": 1,
      "event": "タイに自動車部品の製造子会社を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2002/4",
      "importance": 2,
      "event": "精機事業ユニットをツバキエマソンに統合",
      "source": "有価証券報告書"
    },
    {
      "date": "2004/4",
      "importance": 1,
      "event": "中国に椿本汽車発動機（上海）有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2006/4",
      "importance": 1,
      "event": "山久チヱインを連結子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/7",
      "importance": 1,
      "event": "韓国に自動車部品の製造子会社を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2009/12",
      "importance": 1,
      "event": "名古屋証券取引所の上場を廃止",
      "source": "有価証券報告書"
    },
    {
      "date": "2010/4",
      "importance": 2,
      "event": "独Kabelschlepp GmbHを連結子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2011/12",
      "importance": 1,
      "event": "中国に椿本鏈条（天津）有限公司を設立",
      "source": "有価証券報告書"
    },
    {
      "date": "2012/8",
      "importance": 2,
      "event": "米Mayfran International他2社を連結子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2013/10",
      "importance": 2,
      "event": "ツバキエマソンを完全子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2016",
      "importance": 1,
      "event": "チェコに自動車部品の製造子会社を設立",
      "source": "公式サイト沿革"
    },
    {
      "date": "2018/6",
      "importance": 1,
      "event": "米Central Conveyor Companyを連結子会社化",
      "source": "有価証券報告書"
    },
    {
      "date": "2021/4",
      "importance": 1,
      "event": "パワトラ事業統括とモビリティ事業統括の発足",
      "source": "有価証券報告書"
    },
    {
      "date": "2022/4",
      "importance": 1,
      "event": "東京証券取引所プライム市場へ移行",
      "source": "有価証券報告書"
    },
    {
      "date": "2024",
      "importance": 1,
      "event": "独EUROCATENA GmbHを連結子会社化",
      "source": "公式サイト沿革"
    },
    {
      "date": "2025",
      "importance": 1,
      "event": "福井県美浜町に福井美浜工場を竣工",
      "source": "公式サイト沿革"
    },
    {
      "date": "2026",
      "importance": 3,
      "event": "大同工業を連結子会社化",
      "source": "公式サイト沿革"
    }
  ]
}