防止滑退的伸缩式擦写件
申请公布号:CN202635996U
申请号:CN201220319196.7
申请日期:2012.07.02
申请公布日期:2013.01.02
发明人:张鸿仁
分类号:A45D40/06(2006.01)I;A45D40/12(2006.01)I;B44D3/22(2006.01)I
主分类号:A45D40/06(2006.01)I
代理人:徐金国
地址:中国台湾新北市板桥区中山路一段186号
摘要:本实用新型涉及一种防止滑退的伸缩式擦写件,包括一握管、一内管、一套管、一滑座、以及一擦写件;内管的管壁设有位于相对向的至少一对阶梯式导沟,其具有多个导沟窗,各导沟窗各具有位于相对向的一挡壁,且相邻的导沟窗呈阶梯形状排列并曲折连通;套管的内壁设有位于相对向的至少一对螺旋导槽;滑座设有位于相对向的至少一对导突,其穿经内管的一对阶梯式导沟并突容于套管的螺旋导槽。于擦抹或书写使用时,滑座的导突是抵靠于其中一导沟窗的挡壁,依该挡壁的抵挡,避免擦写件及滑座的意外滑退。
主权项:一种防止滑退的伸缩式擦写件,该伸缩式擦写件包括:一握管;一内管,该内管沿其长度方向具有一套合部与一突伸部,该套合部套合于该握管的内部,该突伸部的管壁设有位于相对向的至少一对导沟;一套管,套覆于该内管的突伸部的外部,该套管的内壁设有位于相对向的至少一对螺旋导槽;一滑座,容置于该内管的突伸部的内部,该滑座设有位于相对向的至少一对导突,该对导突穿经该内管的该对导沟并突容于该套管的该对螺旋导槽;以及一擦写件,固定于该滑座;其特征在于:该内管的导沟为一阶梯式导沟,该阶梯式导沟具有多个导沟窗,各该导沟窗各具有位于相对向的一挡壁,且所述多个导沟窗的相邻导沟窗呈阶梯形状排列并曲折连通。
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