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发明名称
具有切削装置的活动铅笔
摘要
一种包含笔杆、一端设置有爪型夹紧装置的储芯管和压缩弹簧的活动铅笔,其特征在于设置有包含至少两片其刀刃线起点汇集活动铅笔轴心线一点、并与该轴心线呈小于45°交角的刀片的切削刀,和使切削刀或储芯管旋转的具有螺旋导槽或8字形回转导槽或不具有上述导槽的旋转体。本实用新型分有笔套与无笔套两种型式,无笔套的活动铅笔,爪型夹紧装置和切削刀位于笔杆锥形端的内腔。有笔套的活动铅笔,切削刀位于笔套内腔封闭端。
申请公布号
CN2033343U
申请公布日期
1989.03.01
申请号
CN88217376.6
申请日期
1988.07.30
申请人
徐兆荣
发明人
徐兆荣
分类号
B43K29/06
主分类号
B43K29/06
代理机构
代理人
主权项
1、一种包含笔杆、一端设置有爪式夹紧装置的储芯管和压缩弹簧的活动铅笔,其特征在于设置至少包含两片其刀刃线起点汇集于活动铅笔轴心线一点並与该轴心线呈小于45°交角的刀片的切削刀,和使储芯管或切削刀旋转的具有螺旋导槽或8字形迥转导槽的或不具有上述导槽的旋转体。
地址
上海市成都北路390号
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