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Hydraulic hooklift hoists are mounted on heavy duty trucks to enable hauliers to change out flatbeds, dumpster bodies, and similar containers. Primarily used in conjunction with tilt frame bodies and specialised containers, generally designed for the transportation of materials in the waste, recycling, scrap and demolition industries.〔Adams, A. (2005) ''Trucking: tractor-trailer driver handbook/workbook'', (p.391 ) Cengage Learning. ISBN 1-4180-1262-9. Retrieved August 2011〕 The system employs a series of hydraulic rams to hook, lift and hoist the container onto the chassis of the truck. There are several configuration options, and strict guidelines〔Office of the Federal Register (U.S.) (2010) ''Code of Federal Regulations, Title 49, Transportation, Pt. 300-399, Revised as of October 1, 2009'' (p.475. ) Government Printing Office. ISBN 0-16-084062-7. Retrieved August 2011〕 which must be followed to ensure that the container is secured on the truck in transit. == Load capacity == Lift and dump capacities of hydraulic hooklift hoists typically range from . Generally a hoist is capable of lifting (off the ground) and dumping (onto the ground) the same maximum capacity, although there can be exceptions where short wheel bases are involved. The ratio of container length to chassis length is a factor in achieving rated load capacity. This ratio determines the load angle, and all hooklift hoist systems indicate a recommended range of body lengths, typically difference in length between the container and the chassis. Container bodies shorter than the recommended length produce substantially steeper load angles, and consequently lower load rating, than those of the longest bodies intended for use with a particular hoist. Chassis frame height is also important, as the lower the chassis frame height, the lower the potential load angle. A combination of low chassis with the longest recommended body lengths offers the best case. Finally, hook height has an effect, as a taller hook height achieves a greater lift and dump capacity. 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「Hydraulic hooklift hoist」の詳細全文を読む スポンサード リンク
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