Title:
THERMOCHROMIC WRITING TOOL
Document Type and Number:
Japanese Patent JP2022130719
Kind Code:
A
Abstract:
To provide a thermochromic writing tool capable of easily removing a cover member which can prevent a friction body from getting dirty when not used.SOLUTION: There is provided a thermochromic writing tool 1 provided with a writing tool part 5a which can eject a thermochromic composition, and a friction body 70 which rubs the handwriting of the thermochromic composition and can thermally discolor the handwriting with frictional heat generated when rubbing the handwriting, in which the writing tool 1 has a shaft member, the friction body 70 projecting from the end of the shaft member, a cover member 90 which is attached to the shaft member to cover the friction body 70, and a protrusion 91 formed projecting outward on the outer surface of the cover member 90 to make it easier to catch with fingers.SELECTED DRAWING: Figure 2
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Inventors:
Yusuke Nakamura
Application Number:
JP2022109297A
Publication Date:
September 06, 2022
Filing Date:
July 06, 2022
Export Citation:
Assignee:
MITSUBISHI PENCIL CO.,LTD.
International Classes:
B43K23/08; B43K23/12; B43K29/02