CN2790798Y - 画角直尺 - Google Patents

画角直尺 Download PDF

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Publication number
CN2790798Y
CN2790798Y CN 200520095872 CN200520095872U CN2790798Y CN 2790798 Y CN2790798 Y CN 2790798Y CN 200520095872 CN200520095872 CN 200520095872 CN 200520095872 U CN200520095872 U CN 200520095872U CN 2790798 Y CN2790798 Y CN 2790798Y
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ruler
angle
utility
model
chi body
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CN 200520095872
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English (en)
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熊来
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Individual
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Individual
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Abstract

本实用新型涉及一种学生用量具,属于文具领域。本实用新型画角直尺,包括尺体,所述尺体上设有刻度,其特征在于尺体边上设有画角刻度。画角直尺的积极效果是学生和教师携带方便,画角简单实用。

Description

画角直尺
技术领域
本实用新型涉及一种学生和教师用量具,属于文具领域。
背景技术
目前,市场上学生和教师用的直尺,包括有尺体,尺体上设有刻度,这种尺可以度量长度,但学生画角就需要用量角器,量角器存在携带不方便的问题。
发明内容
本实用新型目的是提供一种结构简单,适合学生和教师使用的画角直尺。
本实用新型的目的是这样实现的:一种画角直尺,包括尺体,所述尺体上设有刻度,其特征在于尺体边上设有画角刻度。
本实用新型一种画角直尺的积极效果是学生和教师携带方便,画角简单实用。
附图说明
下面结合附图对本实用新型的具体实施方式作进一步详细地描述。
附图为本实用新型画角直尺的结构示意图。
具体实施方式
如图,画角直尺是在尺体另一边上设有画角刻度。其刻度的长度是利用三角函数关系,将角度值转化为长度值,沿刻度尺的直线边刻度。
具体使用时取画角直尺上标注有0度至45度的两点间的长度做基准长度,画角的底边AB,然后以B点为垂足,取尺中标注的角度值对应的长度画垂线BC,连接AC所得夹角CAB就是所求角。
画角直尺中只标注了小于45度的角,对于大于45度的角,可以利用几何关系完成,例如:画55度角就可以在竖直方向画35度角。

Claims (1)

1、一种画角直尺,包括尺体,所述尺体上设有刻度,其特征在于尺体边上设有画角刻度。
CN 200520095872 2005-04-06 2005-04-06 画角直尺 Expired - Fee Related CN2790798Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200520095872 CN2790798Y (zh) 2005-04-06 2005-04-06 画角直尺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200520095872 CN2790798Y (zh) 2005-04-06 2005-04-06 画角直尺

Publications (1)

Publication Number Publication Date
CN2790798Y true CN2790798Y (zh) 2006-06-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200520095872 Expired - Fee Related CN2790798Y (zh) 2005-04-06 2005-04-06 画角直尺

Country Status (1)

Country Link
CN (1) CN2790798Y (zh)

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C19 Lapse of patent right due to non-payment of the annual fee
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