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A traveler curtain, also called ''draw curtain'', ''bi-parting curtain'', or just ''traveler'', is the most common type of front curtain used in theaters. Traveler curtains remain at a fixed elevation and open and close horizontally, breaking in the middle, and consequently require a minimum of fly space. The curtains are typically made of velvet and decorated with a series of vertical box pleats along the top edge. Traveler curtains may be rigged with or without an operating line. When rigged with an operating line, they may be motorized or operated manually. They are referred to as ''walk-draw'' or ''walk-along'' curtains when rigged without an operating line. When opened and closed manually with an operating line, they are called ''manual'' curtains. They are the least costly kind of theater curtain to construct and relatively simple to operate. ==Construction== Traveler curtains are suspended on a series of short chains called ''trim chains''. Each trim chain hangs from a wheeled assembly called a ''roller'' or ''carrier'' that is supported by and rolls along the inside of a horizontal metal ''channel'' or ''track''.〔The carriers may consist of wheels secured around an I-beam rather than inside a channel.〕 A heavy duty ''master carrier'' supports the moving edge of the curtain. The master carrier has four wheels, while all other carriers have only two wheels. A device called an ''end stop'' prevents the master carrier from being pulled out of its channel.〔 〕 Directly below each carrier and above the chain is an eyelet through which the curtain operating line passes, if present. The operating line runs through two pulleys that are located near the tops of the curtains, one on each side of the stage (the ''dead end'' and ''live end'' pulleys), and then down to the stage floor, where it runs through a ''tension pulley'' before returning to the other pulleys in the fly space. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Traveler curtain」の詳細全文を読む スポンサード リンク
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