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A stairlift is a mechanical device for lifting people up and down stairs. For sufficiently wide stairs, a rail is mounted to the treads of the stairs. A chair or lifting platform is attached to the rail. A person on the chair or platform is lifted as the chair moves along the rail. Stairlifts are known variously as stair lifts, stair-lifts, chair lifts, stair gliders and by other names. This type of chair lift should not be confused with the chairlift used by skiers. The term stair climber can refer either to stair lifts, or more commonly to the exercise equipment by the same name. Some of the first stairlifts to be produced commercially were advertised and sold in the USA in the 1930s by the Inclinator Company of America. Many users at the time were victims of polio. Now they are seen for use in elderly, fall-prone individuals, and the disabled who are unable to navigate stairs safely. ==History== In the 1920s, C.C. Crispen, a Pennsylvania entrepreneur, created a way to enable his ailing friend to travel from floor to floor. Crispen's idea was to design a seat that could climb stairs. A self-taught engineer, he built the first prototype of the inclining chair. He called it the Inclin-ator. However, TV historian Doctor David Starkey has in 2009, found evidence in a list of the possessions of King Henry VIII that attributes the first stairlift invented to the monarch. The 30 stone king, injured through jousting, used a chair that was hauled up and down stairs on a block and tackle system by servants at the ancient Whitehall Palace in London. 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「stairlift」の詳細全文を読む スポンサード リンク
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