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发明名称
梅花形圆弧绘图板
摘要
一种梅花形圆弧绘图板,由五组对称的半圆形图板、防滑帽和倒置圆锥平台构成。五组对称半圆形图板上设置有50个直径依次相差1mm的半圆,上面设置有直径和0-360度刻度及标注值,半圆外侧设置有上宽下窄镂空槽;板体上设置有坐标线及标记孔;板体中部设置有防滑帽和倒置圆锥平台,平台外围设置有直径小于2mm的小孔。本发明的有益效果是:绘制圆弧时更精确、方便、快捷,且避免了绘图时图板的非主观滑动和移开图板时蹭污图面。
申请公布号
CN102896953A
申请公布日期
2013.01.30
申请号
CN201210366621.2
申请日期
2012.09.28
申请人
迁安市科技发展促进中心;杨春喜
发明人
杨春喜
分类号
B43L13/00(2006.01)I
主分类号
B43L13/00(2006.01)I
代理机构
代理人
主权项
一种梅花形圆弧绘图板,由五组对称半圆形图板、防滑帽和倒置圆锥平台构成。
地址
064400 河北省迁安市金桥街中段路北
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