| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a writing brush which can easily provide flexibility and resilience of a brush neck even if bristles having almost uniform elasticity are used. <P>SOLUTION: The writing brush is provided with: a barrel axis 10; and a brush neck 11 whose fixed base part 11a is fixed to the distal end of the barrel axis 10, wherein a tapered coil spring 15 whose one end is fixed to the fixed base part 11a of the brush neck 11 and whose diameter is made smaller toward the distal end of the brush neck 11 is buried in the inside of the brush neck 11, and bristles 12 arranged at the inside and outside of the tapered coil spring 15 are assembled at the distal end side of the brush neck 11. <P>COPYRIGHT: (C)2009,JPO&INPIT |
