CN2323975Y - 一种自动铅笔 - Google Patents

一种自动铅笔 Download PDF

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Publication number
CN2323975Y
CN2323975Y CN 98209764 CN98209764U CN2323975Y CN 2323975 Y CN2323975 Y CN 2323975Y CN 98209764 CN98209764 CN 98209764 CN 98209764 U CN98209764 U CN 98209764U CN 2323975 Y CN2323975 Y CN 2323975Y
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China
Prior art keywords
pencil
cap
brush
push rod
shaft
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Expired - Fee Related
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CN 98209764
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English (en)
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陈永斌
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Individual
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Individual
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Abstract

一种自动铅笔,由笔杆、笔帽、笔管、推杆、定位盘、弹性圈所组成,笔杆内装有弹性圈、笔管,笔管上端装一定位盘,定位盘用外螺纹固定在笔杆上,笔帽内有推杆,推杆上端呈一多边形的盘,与笔帽内孔滑配,其杆与定位盘内螺纹配合。转动笔帽,推杆可推动笔管内的笔芯前伸。使用本实用新型,配用不同粗细的笔芯,满足不同使用者的需要。

Description

一种自动铅笔
本实用新型涉及一种文具,具体地说是一种自动铅笔。
目前市售的自动铅笔,其夹笔芯的笔管头部涨芯中的笔芯在弹簧的作用下,被笔杆孔中的涨套夹紧,当需要将笔芯外伸时,按动笔管,使笔管头部涨芯外伸,脱离涨套,伸出的涨芯将笔芯向前推进后,在弹簧作用下,恢复原位,在新的位置上又夹紧笔芯。实现了笔芯的自动外伸。该结构虽然简单,其缺点是一种自动铅笔只能使用一种粗细的笔芯,且由于涨芯、涨套是弹性配合,长期使用会产生塑性形变,发生笔芯夹不紧或伸不出的现象。
本实用新型的目的在于提供一种可夹持不同规格笔芯,长期可靠使用的自动铅笔。
本实用新型是这样实现的:
该自动铅笔由笔杆、笔帽、笔管、推杆、定位盘、弹性圈所组成,笔杆头部呈锥形,有内孔,后端内孔处有螺纹,孔内置弹性圈,以固定笔芯,弹性圈上有笔管,笔管内装笔芯,笔帽套在笔杆上,可自由转动,其特征是笔管上端装一定位盘,该定位盘内孔与外边均有螺纹,外螺纹与笔杆螺纹配合,将其固定在笔杆上,笔帽内装有推杆,推杆上端为多边形盘状,与笔帽内孔滑动配合,其杆带有螺纹,与定位盘内孔螺纹配合。将笔芯放入笔管内,装好定位盘和推杆,盖好笔帽,转动笔帽,使推杆推动笔芯前伸。
采用本实用新型,可配用不同规格的笔芯以满足使用者的不同需要,且因结构可靠,经久耐用。
下面结合附图对本实用新型作进一步说明:
附图1是自动铅笔总体结构示意图;
该自动铅笔由笔杆2、笔帽5、笔管3、定位盘4、推杆6、弹性圈1和橡皮头7组成,笔杆头部成锥形,有内孔,孔内置一橡胶弹性圈1和笔管3,笔帽5套在笔杆2上,并可自由转动,在笔管的上端装一定位盘4,该定位盘内孔与外边均有螺纹,外螺纹与笔杆螺纹配合,将其固定在笔杆上,笔帽内装有推杆6,推杆的上端为一方形盘,与笔帽内孔滑动配合,其杆带有螺纹,与定位盘螺纹配合。使用时,将铅笔放在笔管内,装好定位盘、推杆和笔帽,笔帽上还可装一橡皮头7,转动笔帽,在推杆的作用下,笔芯可自动伸出。

Claims (2)

1、一种自动铅笔,由笔杆、笔帽、笔管、推杆、定位盘、弹性圈所组成,笔杆头部呈锥形,有内孔,后端内孔处有螺纹,孔内置弹性圈和笔管,笔管内装笔芯,笔帽套在笔杆上,其特征在于笔管上端装一定位盘,该定位盘内孔与外边均有螺纹,外螺纹与笔杆螺纹配合,笔帽内装有推杆,推杆上端为多边形盘状,与笔帽内孔滑动配合,其杆带有螺纹与定位盘内孔螺纹配合。
2、根据权利要求1所述的自动铅笔,其特征在于笔帽上还可装一橡皮头。
CN 98209764 1998-04-23 1998-04-23 一种自动铅笔 Expired - Fee Related CN2323975Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 98209764 CN2323975Y (zh) 1998-04-23 1998-04-23 一种自动铅笔

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 98209764 CN2323975Y (zh) 1998-04-23 1998-04-23 一种自动铅笔

Publications (1)

Publication Number Publication Date
CN2323975Y true CN2323975Y (zh) 1999-06-16

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Family Applications (1)

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CN 98209764 Expired - Fee Related CN2323975Y (zh) 1998-04-23 1998-04-23 一种自动铅笔

Country Status (1)

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CN (1) CN2323975Y (zh)

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