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Patent Searching and Data


Title:
WRITING TOOL AND WRITING TOOL SET
Document Type and Number:
WIPO Patent Application WO/2019/203032
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a writing tool which freely changes the width of a drawn line in accordance with the writing pressure, the writing tool being adaptable to a thin felt-tipped pen or marking pen. A writing tool 1 comprises: a shaft cylinder 10; an ink supply lead 20 which is accommodated in the shaft cylinder 10 and guides ink with a capillary force; and a lead peripheral member 30 which is attached to the tip of the shaft cylinder 10, through which the ink supply lead 20 penetrates, and from which the tip of the ink supply lead 20 protrudes. The ink supply lead 20 moves backward at the tip of the lead peripheral member 30 in accordance with the writing pressure, and has at a tip portion thereof an extended part in which a gap between the ink supply lead and the lead peripheral member is extended around the entire circumference.

Inventors:
NAKAJIMA TOORU (JP)
OHNO GOYA (JP)
FUKUMOTO TAKEO (JP)
NOYORI TAPPEI (JP)
Application Number:
PCT/JP2019/015212
Publication Date:
October 24, 2019
Filing Date:
April 05, 2019
Export Citation:
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Assignee:
MITSUBISHI PENCIL CO (JP)
International Classes:
B43K8/02; B43K8/04; B65D85/28
Foreign References:
JP2016026930A2016-02-18
JPH10309886A1998-11-24
US6503015B12003-01-07
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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