CN2303732Y - 一种绘图铅笔 - Google Patents

一种绘图铅笔 Download PDF

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Publication number
CN2303732Y
CN2303732Y CN 97224974 CN97224974U CN2303732Y CN 2303732 Y CN2303732 Y CN 2303732Y CN 97224974 CN97224974 CN 97224974 CN 97224974 U CN97224974 U CN 97224974U CN 2303732 Y CN2303732 Y CN 2303732Y
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CN 97224974
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岑宗琨
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Abstract

一种绘图铅笔,它是由笔杆、笔芯、爪式夹头、擦字橡皮、笔帽等组成,笔帽顶端配有卷笔刀。笔芯和擦字橡皮可任意伸缩或更换,结构简单、使用方便、可靠耐用。

Description

一种绘图铅笔
本实用新型涉及一种用于绘图、书写的铅笔。
目前，公知的绘图铅笔的构造是由笔芯和包在笔芯外面的软木层构成。这种铅笔存在以下不足之处：当削笔芯时，笔芯易断；笔杆越削越短，书写效果也随之越差；生产这种铅笔，浪费木材。
为克服上述不足之处，本实用新型提供一种绘图铅笔，它的笔芯、擦字橡皮，可任意伸缩或更换，使用方便，可靠耐用。
本实用新型的目的是这样实现的：笔芯和擦字橡皮是分别装在用塑料或金属制成的笔杆两头内。笔芯是用爪式夹头夹紧，爪式夹头的螺柱旋入笔杆内螺纹孔里。只要正(反)旋转笔杆，就可以使爪式夹头夹紧(或松开)笔芯。笔杆的另一头内装有擦字橡皮、止推螺母和夹紧螺钉等。只要移动止推螺母，就可使笔芯或擦字橡皮伸出。笔帽顶端还设置有卷笔刀。
由于采用了上述方案，这种绘图铅笔不但克服了木质铅笔存在的不足之处，而且铅笔结构简单，使用方便，可靠耐用。
下面结合附图和实施例对实用新型进一步说明。
图1．是本实用新型的笔杆结构图，图2是笔帽结构图。
图中1、笔芯2、爪式夹头3、笔杆4、止推螺母5、夹紧螺钉6、擦字橡皮7、长条形孔8、笔帽筒9、笔帽封头10、卷笔刀座11、刀片12、刀片固定螺钉
在图中1所示的实施例中，在笔杆(3)一头内装有爪式夹头(2)。爪式夹头的锥型头夹持笔芯(1)，螺柱旋入笔杆内螺纹孔里。夹紧螺钉(5)穿过条形孔(7)与止推螺母(4)联接，擦字橡皮(6)固定在止推螺母上，随螺母任意移动。
在图2的实施例中，卷笔刀片(11)由螺钉(12)固定在卷笔刀座(10)上构成卷笔刀。卷笔刀座与笔帽封头(9)的螺柱相联，并固定在笔帽(8)的顶端。

Claims (1)

  1. 一种由笔杆、爪式夹头、擦字橡皮，笔帽和卷笔刀等构成的绘图铅笔，其特征是：
    a．笔杆(3)的一头装有夹持铅笔芯(1)的爪式夹头(2)，另一头装有擦字橡皮(6)。爪式夹头的螺柱旋入笔杆的螺纹孔内。擦字橡皮固定在止推螺母(4)上，并通过夹紧螺钉(5)和条形孔(7)任意固定在笔杆筒内。
    b．卷笔刀片(11)由螺钉(12)固定在卷笔刀座(10)上，卷笔刀座通过笔帽封头(9)固定在笔帽筒(8)的顶端。
CN 97224974 1997-08-29 1997-08-29 一种绘图铅笔 Expired - Fee Related CN2303732Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 97224974 CN2303732Y (zh) 1997-08-29 1997-08-29 一种绘图铅笔

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 97224974 CN2303732Y (zh) 1997-08-29 1997-08-29 一种绘图铅笔

Publications (1)

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CN2303732Y true CN2303732Y (zh) 1999-01-13

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CN 97224974 Expired - Fee Related CN2303732Y (zh) 1997-08-29 1997-08-29 一种绘图铅笔

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CN (1) CN2303732Y (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010135906A1 (zh) * 2009-05-25 2010-12-02 Yao Yuan 自动笔
WO2010135907A1 (zh) * 2009-05-26 2010-12-02 Yao Yuan 自动笔

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010135906A1 (zh) * 2009-05-25 2010-12-02 Yao Yuan 自动笔
WO2010135907A1 (zh) * 2009-05-26 2010-12-02 Yao Yuan 自动笔

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