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Wrtiting implement and ink cartridge

一种笔具、墨水的技术，应用在笔杆内有贮墨管的墨水笔、其他墨水笔、圆珠笔等方向，能够解决中间构件滑脱等问题，达到简易结构、稳定性优良、不产生笔迹飞白的效果

Active Publication Date: 2015-11-11
PILOT PEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the writing tools described in Patent Documents 1 and 5, when the used ink cartridge is replaced, the intermediate member rotates together with the ink cartridge, and there is a risk that the intermediate member is likely to slip off the inner surface of the barrel.

Method used

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  • Wrtiting implement and ink cartridge
  • Wrtiting implement and ink cartridge
  • Wrtiting implement and ink cartridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0069]

[0070] The first embodiment of the writing tool and the ink cartridge of the present invention will be described with reference to the drawings. However, the first present invention is not limited only to the embodiments described below.

[0071] figure 1 The pen tool 1 of the first embodiment shown consists of figure 2 The pen body shown and image 3 The shown ink cartridge 6 is constructed. The front end of the barrel 2 of the main body of the writing tool has a nib 3 as a writing tip, and an ink absorbing body 4 and an intermediate member 5 are arranged in the barrel 2 . The ink cartridge 6 directly stores ink in a bottomed cylindrical container 7 , and the opening 72 of the container 7 is closed with a plug 8 .

[0072] The pen tool 1 is a straight liquid type pen tool. The shaft tube 2 of the pen body has: a pen tip 3 ; an ink absorbing body 4 connected to the rear end of the pen tip 3 ; an intermediate member 5 is arranged behind the ink absorbing body 4...

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PUM

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Abstract

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.

Description

technical field [0001] The invention relates to a writing tool and an ink cartridge used in the writing tool. Specifically, it relates to a writing instrument using a replaceable ink cartridge. Background technique [0002] Conventionally, ink cartridges that contain ink directly in a container that is open at one end and close the opening with a ball or disk-shaped plug have been widely used in writing instruments with built-in replaceable ink cartridges. Such an ink cartridge is fitted into a cylindrical protrusion formed on the main body of the writing instrument from the opening at the front end and is connected to the cylindrical protrusion, and the plug is pressed to open. When the plug is pushed open, the ink in the ink cartridge passes through the inner side (through hole) of the cylindrical protrusion and is supplied to the nib. At this time, by supplying air into the container from the nib side, the internal pressure of the ink cartridge is maintained in a balanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43K5/14
CPCB43K5/14B43K7/02B43K7/10B43K8/022B43K8/03B43K8/04B43K5/145B43K5/1827
Inventor 星野贵宣
Owner PILOT PEN CO LTD
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