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TA的每日心情 | 奋斗 2013-7-19 12:29 |
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签到天数: 8 天 [LV.3]偶尔看看II
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发表于 2011-12-19 13:38
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kershaw 的SpeedSafe system的说明
The patented SpeedSafe knife-opening system helps users open the knife by applying manual pressure to the thumb stud or blade protrusion. The heart of the SpeedSafe system--which is built into many of Kershaw's best-selling knives--is its torsion bar, which keeps gravity from opening the knife. After the blade is out of the handle, the torsion bar moves along its half-moon track and takes over, smoothly opening the blade and locking it into position, ready for use. Although they may look similar at first glance, SpeedSafe knives are not considered switchblades. Unlike a switchblade, SpeedSafe knives do not deploy with the push of a button in the handle or by gravity alone. Instead, the user must manually overcome the torsion bar's resistance, putting the knives outside the federal definition of a switchblade. However, it's the responsibility of the buyer to investigate and comply with the laws and regulations that apply in his or her specific area. Buyers should rest assured, however, that SpeedSafe knives are extremely safe, as they open only when the user manually deploys them, and lock securely into position when open so they don't close accidentally |
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