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发明名称
有划线齿的轮尺
摘要
本实用新型公开了一种有划线齿的轮尺,是绘图办公用品。其结构是在平板尺上装设二个有齿的轮子,尺边下部有凹进的划线齿。使用时凭手感觉轮子转动一齿或数齿画线,不看刻度即可画出等距平行线。将笔尖放入画线齿中并推动轮尺,每个画线齿(齿距1毫米)可画出与尺边垂直的线(现有轮尺画线要隔10毫米)。装夹不同平板尺还可扩展功能。本实用新型效率高,使用方便,可用于绘制平面图、立体图,学三角、几何、美术装饰设计,办公绘制表格和图表。
申请公布号
CN2079566U
申请公布日期
1991.06.26
申请号
CN90204030.8
申请日期
1990.03.30
申请人
卢旭辉
发明人
卢旭辉
分类号
B43L7/00
主分类号
B43L7/00
代理机构
代理人
主权项
1、一种有画线齿的轮尺,其结构是在普通平板尺上装设二个能同步转动的轮子,其特征在于尺边的下部有均匀分布的画线齿。
地址
621000四川省绵阳市工具厂
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