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公开(公告)号:US08033029B2
公开(公告)日:2011-10-11
申请号:US11959854
申请日:2007-12-19
申请人: John E Johnston , Wilfred Anderson , Andrew Butler , David H Titzler , Edward J Cooper , Christopher Tackind , Heather Fleming
发明人: John E Johnston , Wilfred Anderson , Andrew Butler , David H Titzler , Edward J Cooper , Christopher Tackind , Heather Fleming
IPC分类号: B44D3/38
CPC分类号: B44D3/38
摘要: A multi-line chalk reel is disclosed that may be comprised of three or more line reels disposed in a polar arrangement of parallel but distinct rotation axes that has a single method for engaging and disengaging a single drive arrangement to any one spool. This arrangement provides a variety of advantages, including a package solution of useful dimensions and a low part count to minimize parts in assembly. The single drive arrangement reduces cost, and provides for convenient access to individual spools.
摘要翻译: 公开了一种多线粉笔卷轴,其可以由设置成平行但不同旋转轴的极性布置的三根或更多根线卷轴组成,其具有用于将单个驱动装置接合和分离到任何一个卷轴的单一方法。 这种布置提供了各种优点,包括有用尺寸的包装解决方案和低部件数量,以最小化装配中的部件。 单驱动装置降低了成本,并且方便地访问各个线轴。