公开(公告)号：US4565463A

公开(公告)日：1986-01-21

申请号：US592337

申请日：1984-03-21

申请人： Kunihiko Otaguro ,  Hiroshi Takahashi ,  Kazuma Noguchi ,  Takeshi Toyama ,  Takashi Ishikawa ,  Isao Ebisawa

发明人： Kunihiko Otaguro ,  Hiroshi Takahashi ,  Kazuma Noguchi ,  Takeshi Toyama ,  Takashi Ishikawa ,  Isao Ebisawa

IPC分类号： B43K7/02 ,  B43K7/12

CPC分类号： B43K7/12 ,  B43K7/02

摘要： A projectable or push-out type writing instrument cartridge, such as a projectable cartridge for a ball point pen, has a filler impregnated with an aqueous ink, a writing point at its one end, a device for feeding the ink to the writing point, and an end plug mounted in the other end of the cartridge. The plug has an air passage which satisfies a predetermined condition. Preferably, the end plug consists of an inner rod and an outer tube which receives the inner rod in such a manner that the air passage is formed between the rod and the tube. The cartridge is secured in the casing of the instrument, and is projectable to a writing position.

摘要翻译： 可投射或推出型书写工具盒，例如用于圆珠笔的可投射盒，具有浸渍有水性墨水的填充物，其一端的书写点，用于将墨水供给到书写点的装置， 以及安装在盒的另一端的端塞。 插头具有满足预定条件的空气通道。 优选地，端塞包括内杆和外管，其以这样的方式接收内杆，使得空气通道形成在杆和管之间。 墨盒固定在仪器的外壳中，可投影到书写位置。