Golden Key Badge

Japanese: 黄金鍵章 - おうごんけんしょう
Golden Key Badge

…During the 18th and 19th centuries, many European courts produced elaborate ceremonial keys for the Chamberlain, the heads of which were decorated with crowns, royal arms, or combination letters. The gold key was the emblem of the Lord Chamberlain of the United Kingdom.
[Advent of modern locks]
Padlocks that have been used since ancient times include the spring bolt type and the Ward type; the former uses a key to push out a bolt that is stuck in the lock with the force of a leaf spring, while the latter uses a mechanism where only the key that passes through an obstacle inside the lock can turn once to open it.

*Some of the terminology that refers to the "Golden Key" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…18世紀から19世紀にかけて,ヨーロッパの多くの宮廷では侍従職のもつ精巧な儀礼用の鍵が作られ,それらの頭部は王冠や王家の紋章や組合せ文字によって飾られた。黄金鍵章gold keyはイギリス侍従長の標章であった。【春山 行夫】
[近代的な錠の出現]
 古くから用いられていた南京錠にはスプリングボルト式やウォード式があり,前者は錠前に板ばねの力ではまり込んだ閂を鍵で押し出すしくみ,後者は錠前内部の障害物を通過する鍵だけが一回転し解錠できるしくみであった。…

※「黄金鍵章」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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