BALLPOINT PEN - MITSUBISHI PENCIL CO

Title:

BALLPOINT PEN

Document Type and Number:

WIPO Patent Application WO/2015/087852

Kind Code:

A1

Abstract:

Provided are: a ballpoint pen with which the amount of bending of the pen tip can be changed by the force applied when writing, wobbling does not occur, and a stable writing feel can be obtained; and a ballpoint pen with which, to make it possible to clearly change the thickness of the drawn line by the force applied when writing, lines of different thickness can be written with a single writing tip using the angle of the ballpoint pen tip. The ballpoint pen is provided with: a writing ball (30); a holder (21) for holding the writing ball (30) by means of a swaged section (23) the tip of which has been swaged; an ink supply section (40) for supplying ink to the holder (21); a shaft body (11) inside which the ink supply section (40) is held; and a tip shaft (12), which is connected to the tip of the shaft body (11) and from which the holder (21) protrudes during writing. The tip shaft (12) is formed by two-color molding in which a front half (15) and a back half (16) are interdigitated in a saw tooth form.

Inventors:

FUKUMOTO TAKEO (JP)

Application Number:

PCT/JP2014/082491

Publication Date:

June 18, 2015

Filing Date:

December 09, 2014

Export Citation:

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Assignee:

MITSUBISHI PENCIL CO (JP)

International Classes:

B43K7/00

Foreign References:

JPH09240189A	1997-09-16
JPH1134573A	1999-02-09
JP2002331789A	2002-11-19
JP2002331789A	2002-11-19

Other References: