A part of a mechanical device that is operated by the foot. The word originates from the Latin pedalis, meaning "of the foot." Its uses are varied; for example, on bicycles, the power obtained by pedaling with the feet is transmitted from the pedals to the large gear, chain, and wheels, and in automobiles, the pedals are used to operate the accelerator, brake, and clutch. It has also been widely used in musical instruments since ancient times, and comes in keyboard, footboard, and lever types, and serves the following functions: [1] Something that produces sound: Pedals (foot keyboards) on pipe organs and harpsichords, hi-hat cymbals on drum sets, and lever pedals on bass drums. [2] Something that changes the pitch for tuning: Pedals on harps and pedal timpanis. [3] Something that changes the tone or volume to create an expressive effect: Right pedal on pianos, damper pedals on vibrahorns and celestas (to hold and stop the sound), swell pedals (amplifiers) on organs, and left pedals (softening the sound) on pianos. [Akiko Kawaguchi] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
機械装置の一部で、足で操作する機構のこと。ラテン語のpedalis「足の」を語源とする。その使用はさまざまで、たとえば自転車では足でこいで得た動力をペダルから大ギア、チェーン、動輪へと伝えるし、自動車ではアクセル、ブレーキ、クラッチの作動などにペダルを使う。また古くから楽器にも多用され、鍵盤(けんばん)式、踏板式、レバー式などがあり、次のような働きをする。〔1〕発音させるもの パイプ・オルガンやチェンバロのペダル(足鍵盤)、ドラム・セットのハイハット・シンバルや、ベース・ドラムのレバー式ペダル。〔2〕調律用に音高を変えるもの ハープやペダル・ティンパニのペダル。〔3〕音色や音量を変えて表現効果を与えるもの ピアノの右ペダル、ビブラホーン、チェレスタなどのダンパー・ペダル(音の保持と停止)、オルガンのスウェル・ペダル(増音器)、ピアノの左ペダル(弱音)など。 [川口明子] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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