rammer

Japanese: rammer
rammer

… vibrating compactor A machine that compacts sandy ground by vibrating a vibrator attached to a flat plate. rammer A machine that uses the explosive force of an internal combustion engine to give the entire machine a jumping motion, and compacts the soil by the impact when it falls to the ground. A small compaction machine that transmits the driving force of a small gasoline engine or compressed air to a striking plate via a spring and compacts the soil by striking and vibrating is called a tamper. …

*Some of the terminology explanations that mention "rammer" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… 振動コンパクターvibrating compactor平板上に取り付けた起振機の振動によって砂質地盤を締め固める機械。 ランマーrammer内燃機関の爆発力によって機械全体に跳躍運動を与え,地表に落下するときの衝撃によって土を締め固める機械。小型ガソリンエンジンや圧縮空気などの原動力をばねを介して打撃板に伝え,打撃と振動によって締固めを行う小型締固め機械をタンパーtamperという。…

※「rammer」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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