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1. 发明专利

CA2907612C WRITING INSTRUMENT AND INK CARTRIDGE 未知
公开(公告)号：CA2907612C
公开(公告)日：2021-03-09
申请号：CA2907612
申请日：2014-03-17
申请人： KK PILOT CORPORATION ALSO TRADING AS PILOT CORPORATION
发明人： HOSHINO TAKANORI
IPC分类号： B43K5/14
摘要： A writing implement (1) is provided with: a writing implement body which has a pen point (3) provided at the front end of a shaft cylinder (2); and an ink cartridge (6) which is connected to the rear end side of the writing implement body. The ink cartridge (6) includes: a closed-end circular cylindrical container (7) which has an open front end and a closed rear end; and a plug body (8) which is fitted to the inner peripheral surface of the opening (72) of the container (7). The writing implement body includes: a protrusion (53) which is inserted into the opening (72) and presses the plug body (8) rearward, thereby opening the ink cartridge (6); and an airtight connection section (52) which is formed separately from the protrusion (53) and which surrounds the protrusion (53). When the airtight connection section (52) and the opening (72) are airtightly fitted to each other, the opening (72) is divided into multiple sections. As a result, flow passages extending in the front-rear direction are formed in the outer periphery of the protrusion (53). At least one of the flow passages serves as an ink flow passage, and at least one of the remaining flow passages serves as an air introduction passage.

2. 发明专利

BR112018010461B1 Cartucho de tinta e instrumento de escrita 未知
公开(公告)号：BR112018010461B1
公开(公告)日：2022-04-26
申请号：BR112018010461
申请日：2016-11-25
申请人： KK PILOT CORPORATION ALSO TRADING AS PILOT CORPORATION
发明人： HOSHINO TAKANORI
IPC分类号： B43K5/14 , B43K7/08 , B43K8/03
摘要： a presente invenção refere-se a um cartucho de tinta que pode ser usado tanto em um corpo de instrumento de escrita que seja compatível com um mecanismo de prevenção de vazamento de tinta, como um corpo de instrumento de escrita que não seja compatível com um mecanismo de prevenção de vazamento de tinta. este cartucho de tinta (3) inclui: um recipiente tubular (30) para acomodar tinta; e um bujão para vedar uma abertura (31) do recipiente (30), sendo o bujão aberto por uma protuberância (22) proporcionada ao corpo do instrumento de escrita (2), em que o bujão inclui um primeiro bujão (40) e um segundo bujão (50), o primeiro bujão (40) tem um corpo de bujão (41) encaixado na protuberância (22), o segundo bujão (50) tem uma parte circunferencial externa (52) encaixada na superfície circunferencial interna da abertura (31) e um orifício de passagem de tinta (51a) no qual o corpo do bujão (41) do primeiro bujão (40) é encaixado, a força de encaixe entre a parte circunferencial externa (52) do segundo bujão (50) e a superfície circunferencial interna da abertura (31) é maior do que a força de encaixe entre o corpo de bujão (41) do primeiro bujão (40) e o orifício de passagem de tinta (51a) do segundo bujão (50), e a parte circunferencial externa (52) do segundo bujão (50) é configurara para ser capaz de ser separada da superfície circunferencial interna da abertura (31) por uma força dirigida para a parte traseira do recipiente (30).

3. 发明专利

CA2924950C WRITING INSTRUMENT AND INK CARTRIDGE 未知
公开(公告)号：CA2924950C
公开(公告)日：2021-07-06
申请号：CA2924950
申请日：2014-09-16
申请人： KK PILOT CORPORATION ALSO TRADING AS PILOT CORPORATION
发明人： HOSHINO TAKANORI
IPC分类号： B43K5/14 , B43K8/03
摘要： Provided is an exceptionally convenient writing instrument which, despite using a replaceable ink cartridge having a stopper body opened by pressing, can minimize the inadvertent leakage of ink prone to occur when the spent cartridge container is withdrawn, thus making cartridge replacement highly easy. The writing instrument is provided with: a replaceable ink cartridge comprising a bottomed cylindrical container which is open at the front end and closed at the back end, and a stopper body which fits against the inside peripheral surface of the opening of the container; and a protruding part which inserts into the opening of the container and presses the stopper body rearward, opening the ink cartridge. When being pressed to open, the protruding part and the stopper body interconnect, and during cartridge replacement, the protruding part and the stopper body disconnect, and the stopper body refastens into the container opening.

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