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发明名称
带备用笔芯的圆珠笔
摘要
本实用新型是一种带备用笔芯的圆珠笔。此笔是在现在通用的圆珠笔芯后面加上一支备用笔芯。从而能使人们在使用此笔书写时,后顾无忧。备用笔芯和常用笔芯的连接是采用一种能方便的插、拔的塑料套塞。塑料套塞可以设计成不同形状,从而可使原来在用常用笔芯时笔的各种功能(如:揿动、旋转等),在换用了备用笔芯时仍然适用。
申请公布号
CN2046077U
申请公布日期
1989.10.18
申请号
CN89210734.0
申请日期
1989.01.14
申请人
朱强
发明人
朱强
分类号
B43K7/00;B43K29/00
主分类号
B43K7/00
代理机构
代理人
主权项
1、一种带备用笔芯[5]的圆珠笔,其特征是在常用笔芯[1]的后部通过一个塑料套塞[4]连接上一支备用笔芯[5]。
地址
山东省济南市山东造纸东厂检查科
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