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发明名称
熀踏车单轴曲柄固定链轮之改良构造追加案
摘要
申请公布号
TW072354
申请公布日期
1985.11.16
申请号
TW07221433A01
申请日期
1984.05.24
申请人
李伯达
发明人
分类号
B62M3/00
主分类号
B62M3/00
代理机构
代理人
恽轶群 台北巿松山区南京东路三段二四八号七楼
主权项
一种脚踏车单轴曲柄固定链轮之改良构造,系在一链轮与ㄣ型单轴曲柄以凸齿与凹槽互相紧密啮合并以迫紧螺帽迫紧定位之改良构造,将其ㄣ型单轴曲柄之心轴制成延其纵轴向设有一以上之长条形凹槽,其特征系藉此长条形凹槽之成型,具有高抗变形坚固度,不易变形耐用者。
地址
台北县板桥巿光华街二二号
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