Title:
WRITING INSTRUMENT
Document Type and Number:
Japanese Patent JP2016078332
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a writing instrument suitable for a marking pen and the like making ink in a writing refill flow out by utilizing applied pressure brought by writing pressure.SOLUTION: In a writing instrument A, a pen point with unsealable property is used for a pen core 31 of a writing refill 20 that serves as an ink tank housed in a barrel 10. When writing pressure is applied, the ink tank is pressurized. A pressure mechanism 50 is provided on the back end side of the writing refill 20, and the whole writing refill 20 is movable.SELECTED DRAWING: Figure 1
Inventors:
KAMIYA TOSHIFUMI
NAKAJIMA TORU
NAKAJIMA TORU
Application Number:
JP2014212309A
Publication Date:
May 16, 2016
Filing Date:
October 17, 2014
Export Citation:
Assignee:
MITSUBISHI PENCIL CO
International Classes:
B43K7/02; B43K8/02; B43L25/04
Domestic Patent References:
| JP2001130188A | 2001-05-15 | |||
| JP2004025763A | 2004-01-29 | |||
| JPS587690U | 1983-01-18 | |||
| JP2014131870A | 2014-07-17 |
Foreign References:
| EP2345542A1 | 2011-07-20 |
Attorney, Agent or Firm:
Eisuke Fujimoto
Masayoshi Kanda
Akio Miyao
Nobuyuki Baba
Masayoshi Kanda
Akio Miyao
Nobuyuki Baba
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