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Mobile shelving, mobile aisle shelving, roller racking, or rolling stack, are terms applied to shelving or storage units fitted with wheeled traction systems. Units can be closely packed when access is not required, but can be readily moved to open up an aisle to allow access. By eliminating the need for a permanently open aisle between every unit, a smaller proportion of floor space can be allocated to storage than in the case of conventional fixed shelving, or a higher capacity of storage can be met using the same footprint as fixed shelving. Each shelving unit is normally mounted on a level trackway (to eliminate gradients in the supporting floor), making it possible to move heavy units with minimal effort. Mobile shelving can be moved manually or by the use of electrical motors. The track/flooring can either sit on top of an existing floor or be integrated into raised access flooring allowing for a smooth transition between unit and surrounding floor levels. == Manual mobile shelving == Mobile storage systems are usually constructed with a rotary handle on the exterior accessible face. When rotated, the handle operates the mechanism which winds the single, connected, filing unit either left or right, depending on a clockwise or counter-clockwise rotation of the handle. In an office, for example, several stacks of moveable filing cabinets may be accommodated in a limited space. Drive mechanisms vary; traditionally systems were offered with chain drive but modern technology allows belt drive systems which provides smooth, quiet operation. Although the "bays of shelving" that sit on the mobile chassis come in many standard sizes, they can be mixed to create run lengths of shelving to maximise the room length. The tracks can be installed onto many different types of floor and on different levels. The tracks themselves can either have a false floor running in between so that the tracks do not become a trip hazards or they can be put into the floor (usually concrete floor) or have a small ramps either side of the tracks, either option gives you a hazard free floor and track system 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「Mobile shelving」の詳細全文を読む スポンサード リンク
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