公开(公告)号：US06602012B2

公开(公告)日：2003-08-05

申请号：US10149589

申请日：2002-06-14

申请人： Kazuhiko Furukawa ,  Yojiro Sano

发明人： Kazuhiko Furukawa ,  Yojiro Sano

IPC分类号： D43K502

CPC分类号： B43K5/18 ,  B43K7/08 ,  B43K8/04

摘要： In a free-ink type collector writing instrument, the collector is formed with a partitioning portion for substantially shutting off the ink tank from the outside air, auxiliary retaining grooves are formed on the ink tank side with respect to the air/liquid exchanger of the partitioning portion while main retaining grooves are formed on the front side with respect to the air/liquid exchanger of the partitioning portion, a wide groove formed across the auxiliary retaining grooves for connecting the air/liquid exchanger and the ink tank is formed with a narrow groove extending from the air/liquid exchanger side to the ink tank side and lateral grooves capable of leading ink into the auxiliary retaining grooves. It is further effective if the capacity ‘ie’ of the auxiliary retaining grooves and the capacity ‘is’ of the main retaining grooves are designed so as to satisfy a relation ‘is>ie>0.05·is’ or if effective partitioning portion grooves are formed.

公开(公告)号：US06261019B1

公开(公告)日：2001-07-17

申请号：US09581460

申请日：2000-06-12

申请人： Kazuhiko Furukawa

发明人： Kazuhiko Furukawa

IPC分类号： D43K502

CPC分类号： B43K5/12 ,  B43K7/02 ,  B43K7/10

摘要： In a free-ink type low-viscosity water-based ball point pen, the low viscosity water based ink 17 contains 40% or more of water as a main solvent and has a viscosity of 1.5 cps to 60 cps at a normal temperature. A collector 6 has a slender, slit-like ink groove 16 and an air vent groove 14. In a zone covering from a collector air-venting portion 15 to an outside air with which the collector air-venting portion 15 is communicated the collector 6 has a mouth piece 5 having provided therein the thin and elongate air vent groove 14. The maximum amount of ink stored in the collector 6 is made 15% or more of the capacity of an ink tank 9. The ink tank 9 is made detachable and has its main body formed of transparent or semi-transparent synthetic resin, the main body therefore enabling a residual amount of ink 17 to be visually recognizable from outside.

摘要翻译： 在自由墨水型低粘度水性圆珠笔中，低粘度水性油墨17含有40％以上的水作为主要溶剂，并且在常温下具有1.5cps至60cps的粘度。 收集器6具有细长的狭缝状墨水槽16和排气槽14.在从收集器排气部分15覆盖集气器排气部分15与外部空气连通的区域中，收集器6 具有在其中设置有细长的通气槽14的口部件5.存储在收集器6中的最大量的墨水被制成墨水罐9的容量的15％或更多。墨水罐9是可拆卸的，并且 其主体由透明或半透明合成树脂形成，因此主体能够从外部可视地识别剩余量的墨17。