| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an interdental brush which gives a feeling of excellent use owing to improved interdental insertability and interdental cleanability of a brush body with respect to interdental sections of various sizes. <P>SOLUTION: The interdental brush 1 comprises a shaft member (wire 21) and two or more cleaning sections A<SB POS="POST">1</SB>, A<SB POS="POST">2</SB>, and A<SB POS="POST">3</SB>composed of a plurality of brush members (filament 22) projecting radially from the shaft member. Each of the cleaning sections A<SB POS="POST">1</SB>, A<SB POS="POST">2</SB>, and A<SB POS="POST">3</SB>comprises, on the proximal end side of the shaft member, a diameter expanding section α which gradually increases in diameter from the proximal end side toward the distal end side and on the distal end of the shaft member, a diameter reduction section β which gradually decreases in diameter from the proximal end side toward the distal end side. <P>COPYRIGHT: (C)2013,JPO&INPIT |
