|
A shelf (pl. ''shelves'')〔(【引用サイトリンク】title=Shelf )〕 is a flat horizontal plane which is used in a home, business, store, or elsewhere to hold items of value that are being displayed, stored, or offered for sale. It is raised off the ground and usually anchored/supported on its shorter length sides by brackets. It can also be held up by columns or pillars. A shelf is also known as a ''counter'', ''ledge'', ''mantel'', or ''rack''.〔(【引用サイトリンク】title=Shelf )〕 Tables designed to be placed against a wall, possibly mounted, are known as console tables, and are similar to individual shelves. A shelf can be attached to a wall or other vertical surface, be suspended from a ceiling, be a part of a free-standing frame unit, or it can be part of a piece of furniture such as a cabinet, bookcase, entertainment center, some headboards, and so on. Usually two to six shelves make up a unit, each shelf being attached perpendicularly to the vertical or diagonal supports and positioned parallel one above the other. Free-standing shelves can be accessible from either one or both longer length sides. A shelf with a hidden internal bracket is termed a floating shelf. The length of the shelf is based upon the space limitations of its siting and the amount of weight which it will be expected to hold. The vertical distance between the shelves is based upon the space limitations of the unit's siting and the height of the objects; adjustable shelving systems allow the vertical distance to be altered. The unit can be fixed or be some form of mobile shelving. The most heavy duty shelving is pallet racking. In a store, the front edge of the shelf under the object(s) held might be used to display the name, product number, pricing, and other information about the object(s). ==Materials== Shelves are normally made of strong materials such as wood,〔(【引用サイトリンク】title=How To Build Shelves )〕 bamboo or steel, though shelves to hold lighter-weight objects can be made of glass or plastic. Shelves can even be made from an old door, blue-tack,〔(【引用サイトリンク】title=DIY Door Shelf Tutorial )〕 colored pencils〔(【引用サイトリンク】title=Day 27: Pencil Shelf )〕 or books.〔(【引用サイトリンク】title=Book Shelf made from books )〕 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「Shelf (storage)」の詳細全文を読む スポンサード リンク
|