CN102463788A - 正弦曲线笔 - Google Patents

正弦曲线笔 Download PDF

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Publication number
CN102463788A
CN102463788A CN2010105454784A CN201010545478A CN102463788A CN 102463788 A CN102463788 A CN 102463788A CN 2010105454784 A CN2010105454784 A CN 2010105454784A CN 201010545478 A CN201010545478 A CN 201010545478A CN 102463788 A CN102463788 A CN 102463788A
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pen
ellipse
convex mark
sine curve
cylinder
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CN2010105454784A
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English (en)
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陈渝德
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Abstract

一种能画正弦曲线的笔。在笔杆上制一凸痕，凸痕斜向上绕笔杆一周，形成一个闭合椭圆凸痕。初等数学相关理论可以证明，将一个椭圆套在一个圆柱上，再将圆柱在纸上滚动，椭圆留下的痕迹为正弦曲线。使用时，将复写纸裹住椭圆凸痕，在作业本在一滾，就画出了标准的椭圆。本发明的有益效果：作图标准，快捷方便，节约时间。

Description

正弦曲线笔
技术领域
本发明涉及一种学生学习用品，具体的说，是一种能画正弦曲线的笔。
背景技术
目前学生在作业本上画正弦曲线是用描点法，这种方法费时费力，图形质量差。
发明内容
本发明要解决的技术问题在于提供一种能画正弦曲线的笔。
本发明的技术方案是；在笔杆上制一凸痕，凸痕斜向上绕笔杆一周，形成一个闭合椭圆凸痕。初等数学相关理论可以证明，将一个椭圆套在一个圆柱上，再将圆柱在纸上滚动，椭圆留下的痕迹为正弦曲线。
使用时，将复写纸裹住椭圆凸痕，在作业本在一滾，就画出了标准的椭圆。
本发明的有益效果：作图标准，快捷方便，节约时间。
附图说明
下面结合附图和一个实施例对本发明作进一步的说明。
图1为正弦曲线笔的结构侧视图。
在图1中，1.笔杆，2.椭圆凸痕。
具体实施方式
如图1所示，在笔杆(1)上制一凸痕，凸痕斜向上绕笔杆一周，形成一个闭合椭圆凸痕(2)。

Claims (1)

1.一种能画正弦曲线的笔，其特征在于：在笔杆(1)上制一凸痕，凸痕斜向上绕笔杆一周，形成一个闭合椭圆凸痕(2)。
CN2010105454784A 2010-11-16 2010-11-16 正弦曲线笔 Pending CN102463788A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010105454784A CN102463788A (zh) 2010-11-16 2010-11-16 正弦曲线笔

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010105454784A CN102463788A (zh) 2010-11-16 2010-11-16 正弦曲线笔

Publications (1)

Publication Number Publication Date
CN102463788A true CN102463788A (zh) 2012-05-23

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CN2010105454784A Pending CN102463788A (zh) 2010-11-16 2010-11-16 正弦曲线笔

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CN (1) CN102463788A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109747300A (zh) * 2018-12-15 2019-05-14 王辉 一种圆柱斜截椭圆展开法描绘正弦曲线工具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB313128A (en) * 1928-06-07 1930-01-30 Goerz Optische Anstalt Ag Apparatus for mechanically solving right-angled triangles
SU1225765A1 (ru) * 1984-07-25 1986-04-23 Предприятие П/Я В-2725 Способ заточки резцов
CN1032128A (zh) * 1987-09-25 1989-04-05 朱新根 圆柱面曲线槽加工机床
CN201275928Y (zh) * 2008-10-28 2009-07-22 杭州鸿雁线缆有限公司 机械热压高速印字机

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB313128A (en) * 1928-06-07 1930-01-30 Goerz Optische Anstalt Ag Apparatus for mechanically solving right-angled triangles
SU1225765A1 (ru) * 1984-07-25 1986-04-23 Предприятие П/Я В-2725 Способ заточки резцов
CN1032128A (zh) * 1987-09-25 1989-04-05 朱新根 圆柱面曲线槽加工机床
CN201275928Y (zh) * 2008-10-28 2009-07-22 杭州鸿雁线缆有限公司 机械热压高速印字机

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
孙明珠: "正弦直纹曲面的研究", 《天津工业大学学报》 *
薛国新等: "正弦曲线三点拟合问题的一种新方法", 《计算机仿真》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109747300A (zh) * 2018-12-15 2019-05-14 王辉 一种圆柱斜截椭圆展开法描绘正弦曲线工具
CN109747300B (zh) * 2018-12-15 2024-04-05 王辉 一种圆柱斜截椭圆展开法描绘正弦曲线工具

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Application publication date: 20120523