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公开(公告)号：US5890825A
公开(公告)日：1999-04-06
申请号：US821407
申请日：1997-03-21
CPC分类号： B43K24/146 , B43K27/02
摘要： A composite writing instrument comprising a writing instrument mechanism having a plurality of refills and a rod-like delivery mechanism, the composite writing instrument comprising middle shaft provided between a front shaft and a rear shaft, return springs having one end terminated at the middle shaft to urge the refills, respectively, backward; sliding cams mounted at rear portions of the refills and terminated at the other ends of the return springs to be urged backward, a cam body having at a front portion a cam operating portion which presses the rear end of either of the sliding cams to selectively advance the refills; a guide tube rotatably engaging the cam body and having a guide groove in the axial direction; a slider formed in the guide tube holding a rod-like article and being slidable in the axial direction along the guide groove of the guide tube, the cam body being provided with an engaging portion which engages the middle shaft so as to be slidable in the direction of the front shaft and be rotatable, the cam body further being formed with a helical groove in an inner periphery at the rear portion thereof, and the slider being provided with an engaging projection in engagement with the helical groove of the cam body, whereby the rotation of the cam body is controlled about the middle shaft by engagement of an engaging piece formed at the rear end of the middle shaft and a projection of the cam body.
摘要翻译： 一种复合书写工具，包括具有多个填充物的书写工具机构和杆状输送机构，所述复合书写工具包括设置在前轴和后轴之间的中间轴，所述复合书写工具的一端终止于中间轴至 分别推荐笔芯; 安装在再补充件的后部并且终止于复位弹簧的另一端的滑动凸轮被向后推动，凸轮体在前部具有凸轮操作部分，该凸轮操作部分压紧任一个滑动凸轮的后端以选择性地前进 补笔 引导管，其可旋转地接合所述凸轮体并且在轴向方向上具有引导槽; 滑动件，其形成在所述引导管中，所述引导管保持杆状物品，并且沿着所述引导管的引导槽沿轴向滑动，所述凸轮主体设置有接合所述中轴的接合部，以便能够在所述引导管中滑动 前轴的方向可旋转，凸轮体的后部在其内周部还形成有螺旋槽，滑块设有与凸轮体的螺旋槽接合的接合突起，由此 通过形成在中轴的后端处的接合件和凸轮体的突起的接合来使凸轮体的旋转被控制在中轴的周围。
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