Title:
FRICTION TOOL AND THERMOCHROMIC WRITING UTENSIL
Document Type and Number:
Japanese Patent JP2022086388
Kind Code:
A
Abstract:
To provide a friction tool and a thermochromic writing utensil which can prevent a friction part from wobbling during friction and enable stable friction work.SOLUTION: There are provided a friction tool 1 and a thermochromic writing utensil 11, in which the friction tool 1 has a friction part 4 at an end of a body 2. The friction part 4 is made of an elastic material and frictions handwriting of thermochromic ink so that the handwriting is thermally discolored by the frictional heat generated at that time. A support wall 3 for supporting one side of side surfaces of the friction part 4 is disposed at the end of the body 2. The side opposite to the support wall 3 of the side surface of the friction part 4 is exposed. The support wall 3 is formed so as to surround a certain range of one side of the side surfaces of the friction part 4. An upper end of the friction part 4 protrudes upward from an upper end of the support wall 3. The side surface of the friction part 4 has a circular cross-sectional shape, and the friction part 4 and the support wall 3 can be relatively rotated.SELECTED DRAWING: Figure 2
Inventors:
YAMAGUCHI MASAYA
Application Number:
JP2020198351A
Publication Date:
June 09, 2022
Filing Date:
November 30, 2020
Export Citation:
Assignee:
PILOT CORP
International Classes:
B43L19/00; B43K29/02
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