CN2600255Y - 自动铅笔及笔芯 - Google Patents

自动铅笔及笔芯 Download PDF

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Publication number
CN2600255Y
CN2600255Y CN 03215441 CN03215441U CN2600255Y CN 2600255 Y CN2600255 Y CN 2600255Y CN 03215441 CN03215441 CN 03215441 CN 03215441 U CN03215441 U CN 03215441U CN 2600255 Y CN2600255 Y CN 2600255Y
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Prior art keywords
writing
core
pen core
rectangle
propelling pencil
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Expired - Fee Related
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CN 03215441
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English (en)
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庄华
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Individual
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Individual
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Abstract

本实用新型涉及一种笔及笔芯,特别是一种自动铅笔及笔芯。其技术方案是:笔杆内装有笔芯套和笔芯推送机构,笔芯套的中空腔为长方形。与之配套笔芯,外形是细长的长方体。本实用新型的效果是:由于采用长方体的笔芯,与试卷中的填涂方孔外形相当,使用者只需简单操作即可很好完成填涂过程,填涂效果好,节省时间。

Description

自动铅笔及笔芯
一、技术领域:本实用新型涉及一种笔及笔芯,特别是一种自动铅笔及笔芯。
二、背景技术:目前使用的自动铅笔由笔杆内装有笔芯套和笔芯推送机构组成,笔芯套内孔是圆形,只能与圆形笔芯配合使用。而现在的各种考试,要填涂标准答题卡,以便进行计算机阅卷。现有的圆形笔芯在填涂时,比较费力,且不能很好的满足答题要求。
三、发明内容:本实用新型的目的就是针对现有技术存在的上述缺陷,提供一种自动铅笔及笔芯。
其技术方案是:笔杆内装有笔芯套和笔芯推送机构,笔芯套的中空腔为长方形。与之配套笔芯,外形是细长的长方体。
本实用新型的效果是:由于采用长方体的笔芯,与试卷中的填涂方孔外形相当,使用者只需简单操作即可很好完成填涂过程,填涂效果好,节省时间。
四、附图说明:
附图是本实用新型的一种整体结构示意图。
五、具体实施方式:
参照附图,本实用新型的自动铅笔与现有的自动铅笔结构相同,笔杆2内装有笔芯套3和笔芯推送机构1。改进之处是笔芯套3的中空腔为长方形。与之配套笔芯4,外形是细长的长方体。笔芯横断面的边长在0.5-5mm之间选择,相应的笔芯套的横断面边长略大于笔芯的边长。

Claims (2)

1、一种自动铅笔,笔杆内装有笔芯套和笔芯推送机构,其特征是:笔芯套的中空腔为长方形。
2、一种与权利要求1所述的自动铅笔的笔芯,其特征是:笔芯的外形是细长的长方体。
CN 03215441 2003-02-28 2003-02-28 自动铅笔及笔芯 Expired - Fee Related CN2600255Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03215441 CN2600255Y (zh) 2003-02-28 2003-02-28 自动铅笔及笔芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03215441 CN2600255Y (zh) 2003-02-28 2003-02-28 自动铅笔及笔芯

Publications (1)

Publication Number Publication Date
CN2600255Y true CN2600255Y (zh) 2004-01-21

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Family Applications (1)

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CN 03215441 Expired - Fee Related CN2600255Y (zh) 2003-02-28 2003-02-28 自动铅笔及笔芯

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CN (1) CN2600255Y (zh)

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