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专利名称：Blade guard device for a sawing machine发明人：Chin-Chin Chang申请号：US09558360申请日：20000426公开号：US06279442B1公开日：20010828
专利附图：
摘要：A blade guard device for a circular sawing machine includes an upper guardhaving a lower end pivotally mounted on a stationary base and an upper end including ahandle, a circular saw rotatably mounted on the upper guard, an elongated pressinglever pivotally mounted on a locating plate and having a curved operation surface
including a projection, an inclined section, and a lower bent section, a pressing rollersecured on the upper guard and slidably engaging the curved operation surface of thepressing lever, a link secured to the pressing lever, a circular mounting plate secured tothe link and rotatably mounted on the upper guard, and a lower guard secured to thecircular mounting plate for covering the circular saw. In such a manner, when the handle ismoved downward, the upper guard is pivoted downward to move the pressing roller topress the projection of the pressing lever, thereby moving the link which largely pulls thecircular mounting plate for rapidly rotating the circular mounting plate which rapidlyrotates the lower guard upward, thereby rapidly exposing a lower part of the circularsaw.
申请人：CHANG CHIN-CHIN
代理机构：Connolly Bove Lodge & Hutz LLP
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