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| Self-balancing two-wheeled board ： ウィキペディア英語版 |
Self-balancing two-wheeled board
A self-balancing two-wheeled board or scooter is a portable, rechargeable battery-powered vehicle. It consists of two wheels arranged side-by-side, joined by two small platforms on which the rider stands, and an internal balancing mechanism. The device is controlled by the rider's feet on built-in gyroscopic, sensored platforms.〔(Meet the 'hoverboard' that got Wiz Khalifa arrested ) Rick Broida. Fortune. August 26, 2015. Retrieved October 14, 2015〕〔(Hoverboards seen hogging limelight at Gitex Shopper ) Naushad K Cherrayil. Gulf News. October 5, 2015. Retrieved October 14, 2015〕〔(2-wheel electric scooters take off ) Robert A. Chronkleton. The Kansas City Star. September 20, 2015. Retrieved October 14, 2015〕 The board debuted in China, and became popular in the United States after numerous celebrity appearances with the device in 2015.〔 There is no universally accepted name for the device, as its various product names are attributable to the companies which distribute it, not its Chinese manufacturers.
==Origin==
The board is a Chinese invention but the fast pace of the Chinese manufacturing industry makes it difficult to pinpoint which company was the first to manufacture the device. According to ''Wireds David Pierce, the device was likely invented as the "Smart S1" by Chic Robotics, a Chinese technology company associated with Zhejiang University, founded in 2013. The company released the Smart S1, in August 2014, and the device was a huge success at the 2014 Canton Fair trade show. Chic Robotic patented technologies associated with the board, but due to China's lax patent enforcement, the product was illicitly copied by several Chinese manufacturers.〔
Another claim of invention comes from Shane Chen, a Chinese businessman who moved to the United States and founded the Investist. Chen started a Kickstarter for Hovertrax, in 2013. In an interview with the ''Los Angeles Times'', Chen voiced his frustrations regarding patent rights in China. He claimed that Solowheel, his self-balancing unicycle, was copied by other manufacturers after it appeared in ''Happy Show'', a Chinese television show. Pierce has disputed Chen's claim, writing that "there’s a scooter called the Hovertrax that predates (the Smart S1) slightly, but it's not quite the same thing."〔 In August 2015, Mark Cuban announced plans to purchase the Hovertrax patents from Chen.〔
As of June 2015, the board is made by about five copycat manufacturers in China – a pattern common in the country's technology and industrial sector. The copies vary greatly in price and quality, and may exhibit various defects. Some newer boards have incorporated Bluetooth speakers, allowing the driver to play music from speakers underneath the board. The founders of PhunkeeTree first encountered the board at the Hong Kong Electronics Show, in 2014. The company gave one board to Kendall Jenner, who posted a video of her riding the board on Instagram. The video became a viral hit on social media, which led to other celebrities asking PhunkeeTree for free samples.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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