JP2019181892A5 - - Google Patents
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- Publication number
- JP2019181892A5 JP2019181892A5 JP2018078974A JP2018078974A JP2019181892A5 JP 2019181892 A5 JP2019181892 A5 JP 2019181892A5 JP 2018078974 A JP2018078974 A JP 2018078974A JP 2018078974 A JP2018078974 A JP 2018078974A JP 2019181892 A5 JP2019181892 A5 JP 2019181892A5
- Authority
- JP
- Japan
- Prior art keywords
- ink supply
- core
- supply core
- tip
- writing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral Effects 0.000 claims 4
- 210000001736 Capillaries Anatomy 0.000 claims 2
Claims (3)
前記軸筒の内部に収容され、毛細管力によってインクを誘導するインク供給芯と、
前記軸筒の先端に装着され、前記インク供給芯が貫通し、かつ、前記インク供給芯の先端が突出する芯周囲部材と、
を有し、
前記インク供給芯は、筆圧によって、前記芯周囲部材の先端において後方に移動するとともに、
前記インク供給芯の先端部分において、前記インク供給芯と前記芯周囲部材との間の間隙が、全周にわたって拡張している拡張部が設けられ、
前記インク供給芯の先端部分において、不連続的に外径を減じる段部を全周にわたって設けることで、前記拡張部が設けられたことを特徴とする筆記具。 A barrel,
An ink supply core that is housed inside the shaft tube and guides ink by capillary force;
A core peripheral member attached to the tip of the shaft cylinder, through which the ink supply core penetrates, and from which the tip of the ink supply core protrudes;
Have
The ink supply core is moved backward at the tip of the core surrounding member by writing pressure, and
In the tip portion of the ink supply core, an extended portion is provided in which a gap between the ink supply core and the core peripheral member extends over the entire circumference .
The writing instrument according to claim 1, wherein the extended portion is provided by providing a step portion that continuously reduces the outer diameter at the tip portion of the ink supply core over the entire circumference .
前記軸筒の内部に収容され、毛細管力によってインクを誘導するインク供給芯と、
前記軸筒の先端に装着され、前記インク供給芯が貫通し、かつ、前記インク供給芯の先端が突出する芯周囲部材と、
を有し、
前記インク供給芯は、筆圧によって、前記芯周囲部材の先端において後方に移動するとともに、
前記インク供給芯の先端部分において、前記インク供給芯と前記芯周囲部材との間の間隙が、全周にわたって拡張している拡張部が設けられ、
前記インク供給芯の先端部分において、全周にわたる環状溝を設けることで、前記拡張部が設けられたことを特徴とする筆記具。 A barrel,
An ink supply core that is housed inside the shaft tube and guides ink by capillary force;
A core peripheral member attached to the tip of the shaft cylinder, through which the ink supply core penetrates, and from which the tip of the ink supply core protrudes;
Have
The ink supply core is moved backward at the tip of the core surrounding member by writing pressure, and
In the tip portion of the ink supply core, an extended portion is provided in which a gap between the ink supply core and the core peripheral member extends over the entire circumference.
Wherein the distal end portion of the ink supply core, by providing the annular groove over the entire circumference, brush Kigu it characterized in that the expansion portion is provided.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018078974A JP6688335B2 (en) | 2018-04-17 | 2018-04-17 | Writing instrument |
PCT/JP2019/015212 WO2019203032A1 (en) | 2018-04-17 | 2019-04-05 | Writing tool and writing tool set |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018078974A JP6688335B2 (en) | 2018-04-17 | 2018-04-17 | Writing instrument |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020067761A Division JP7142055B2 (en) | 2020-04-03 | 2020-04-03 | writing instrument |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2019181892A JP2019181892A (en) | 2019-10-24 |
JP2019181892A5 true JP2019181892A5 (en) | 2019-12-12 |
JP6688335B2 JP6688335B2 (en) | 2020-04-28 |
Family
ID=68238906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018078974A Active JP6688335B2 (en) | 2018-04-17 | 2018-04-17 | Writing instrument |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP6688335B2 (en) |
WO (1) | WO2019203032A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7488654B2 (en) * | 2020-01-07 | 2024-05-22 | 三菱鉛筆株式会社 | Writing implements |
JP7142055B2 (en) * | 2020-04-03 | 2022-09-26 | 三菱鉛筆株式会社 | writing instrument |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3836942B2 (en) * | 1997-05-12 | 2006-10-25 | 株式会社サクラクレパス | pen |
US6503015B1 (en) * | 2001-08-30 | 2003-01-07 | Jakks Pacific, Inc. | Marker pen |
US10336129B2 (en) * | 2014-07-03 | 2019-07-02 | Mitsubishi Pencil Company, Limited | Writing implement |
-
2018
- 2018-04-17 JP JP2018078974A patent/JP6688335B2/en active Active
-
2019
- 2019-04-05 WO PCT/JP2019/015212 patent/WO2019203032A1/en active Application Filing
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