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leaf blower : ウィキペディア英語版
leaf blower

A leaf blower (often referred to as simply a blower) is a gardening tool that propels air out of a nozzle to move debris such as leaves and grass cuttings. Leaf blowers are powered by electric or gasoline motors. Gasoline models have traditionally been two-stroke engines, but four-stroke engines were recently introduced to partially address air pollution concerns. Leaf blowers are typically self-contained handheld units, or backpack mounted units with a handheld wand. The latter is more ergonomic for prolonged use. Larger units may rest on wheels and even use a motor for propulsion.〔(【引用サイトリンク】url=http://www.consumerreports.org/cro/leaf-blowers.htm )〕 These are sometimes called "walk behind leaf blowers" because they must be pushed by hand to be operated.
Some units can also suck in leaves and small twigs via a vacuum, and shred them into a bag. In that role it is called a blower vac.
== Overview ==

The leaf blower was invented by Dom Quinto in the late 1950s. It was originally introduced to the United States as part of an agricultural chemical sprayer. Shortly thereafter manufacturers discovered that many consumers were removing the chemical dispensing parts from the device, leaving only the blower behind. Manufacturers then saw the potential of their invention as a common lawn and garden maintenance tool. Drought conditions in California facilitated acceptance of the leaf blower as the use of water for many garden clean-up tasks was prohibited. Leaf blowers also save time compared to a broom.〔(【引用サイトリンク】url=http://www.clca.org/leaf-blowers/index.php )〕 By 1990, annual sales were over 800,000 in the U.S., and the tool had become a ubiquitous gardening implement.
Other functions beyond the simple use of garden maintenance have been demonstrated by Richard Hammond on the Brainiac television series, in which a man sized hovercraft was constructed from a leaf blower. Being both portable and able to generate wind speeds of between and air volumes of 14 m3 per minute, the leaf blower has many potential uses in amateur construction projects.

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「leaf blower」の詳細全文を読む



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