发明名称 USEFUL WRITING IMPLEMENT
摘要 An writing implement which comprises an outer casing (1), an inner tube (2) inserted into said outer casing for storing a plurality of presharpened leads (3), said outer casing is integrally formed with a protrudent flexible elongated reduced neck portion (11) for releasably engaging an upper enlarged portion (21) of said inner tube (2), said neck portion is integrally formed with a lateral triangular flat protrusion (111) for partially covering said upper enlarged portion of said inner tube for preventing said presharpened leads from slipping out of said inner tube, said outer casing is integrally formed with a dependent leg (12) for insertion into said inner tube through a longitudinal slot (23) provided at the lower end of said inner tube, said leg is integrally formed with an inward hook-shaped portion (121) which will be forced to extend into said slot and slide on a longitudinal slide side wall provided at the upper end of said slot on the merits of the elasticity of the material per se for allowing said leads to fall down when said inner tube is moved downward, and will return to its original position just above said lead to be pushed, and said lead will be pushed into a writing position when said inner tube is moved upward.
申请公布号 AU2370588(A) 申请公布日期 1990.04.26
申请号 AU19880023705 申请日期 1988.10.13
申请人 PENCELL CO., LTD. 发明人 NAME NOT GIVEN
分类号 B43K21/00;B43K24/02 主分类号 B43K21/00
代理机构 代理人
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