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发明名称
三等分角和圆弧的简易装置
摘要
三等分角和圆弧的简易装置涉及一种可将角度与圆弧三等分的装置。它是采用;根细薄直杆利用平面几何的原理使3根等长的半动调控杆和2根等长的全动调控杆在2根短分角直杆和1根最长的分角直杆上设有的长槽内上下滑动,即可调控三等分角和圆弧的简易装置在不同的角度和小于360°的圆弧上作三等分的动作,并得到三等分的结果;其分割的精确度高、快捷。所以三等分角和圆弧的简易装置适用于教学、绘制工程图和具体建筑施工中,是一种理想的教具和工程设计、施工工具。
申请公布号
CN2574911Y
申请公布日期
2003.09.24
申请号
CN02258314.9
申请日期
2002.11.04
申请人
胡流洁
发明人
胡流洁
分类号
B43L13/00
主分类号
B43L13/00
代理机构
代理人
主权项
1、三等分角和圆弧的简易装置是由多根直杆连接而成,其特征在于3根半动调控杆(2)、(7)、(10)是等长的和2根全动调控杆(11)、(17)是等长的,而半动调控杆(2)、(7)、(10)比全动调控杆(13)、(17)短8-12%,3根短测角直杆(1)、(4)、(8)的长度是全动调控杆(13)、(17)长度的150-200%,1根最长测角杆(15)的长度是全动调控杆(13)、(17)长度的200-300%。
地址
222100江苏省赣榆县马站中心小学刘克叶转
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