| 摘要 |
An interdental toothbrush has a hinged locking retainer (22) on the end of an elongated handle (20) for capturing the stem (ST) of a twisted wire brush (26). The locking retainer has a hole (36) which is adapted to receive the stem (ST) of a twisted wire brush. A land (52) is formed in the handle adjacent a groove (53) so that the wire brush stem (ST) is captured between that land area (52) and a land area (54) on the retainer. A latch (42) on the locking retainer has a top end (44) with a double cam surface (53, 54) thereon. One of the cam surfaces (54) guides the latch (42) into a locking position as the retainer is closed. The other (53) of the cam surfaces releases the locking retainer when pushed. <IMAGE> |
