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发明名称
弹性圆珠笔尖
摘要
本实用新型公开了一种可变间隙的弹性圆珠笔尖,包括与笔杆连接的笔头,与笔头上的球座间隙配合的钢珠,及出墨通道,其特征是钢珠与球座底部之间有一个间距,该间距内装有支承钢珠的弹性体,非书写时弹性体支承钢珠封住笔头球座端口,不至滴墨,书写时钢珠顶面受力压缩弹性体,使笔头球座端口产生间隙。受力大时间隙大,受力小时间隙小,因此能适用不同粘度书写墨的书写。
申请公布号
CN2297315Y
申请公布日期
1998.11.18
申请号
CN97234379.2
申请日期
1997.04.24
申请人
毛清沅
发明人
毛清沅
分类号
B43K7/12
主分类号
B43K7/12
代理机构
代理人
主权项
1.一种弹性圆珠笔尖,包括与笔杆连接的笔头(3),与笔头上的球座间隙配合的钢珠(1)及出墨通道(4),其特征在于:钢珠(1)与球座底部之间有一个间距,该间距内装有支承钢珠的弹性体。
地址
200030上海市康平路203弄9号三楼
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