| 摘要 |
A gap cleaning fin (F) made of a flexible material, secured to the head (7) of an operating tool (14) and used to remove dirt in a gap. The fin (F) comprises a spatulate forward end part (3), a pair of bottom side parts (4, 5) secured to the head (7), and a pair of sidewalls (1, 2) for coupling the spatulate forward end part (3) and each of the bottom side parts (4, 5), wherein the pair of sidewalls (1, 2) form, between them, a hollow section (13) becoming narrower toward the spatulate forward end part (3). ® KIPO & WIPO 2007
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