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牙刷用径向叶片、使用该叶片的牙刷以及制造该径向叶片的方法和装置
Radial vane for tooth brush, tooth brush using the same, and method and device for manufacturing the radial vane for the tooth brush
US-7992246-B2用于360度牙刷，优化刷毛密度。
专利摘要
在一种360度牙刷中，刷头通过将盘状径向叶片1沿轴向叠置而形成，增大径向叶片1的布置间距以使刷毛密度适当。在径向叶片1之间不使用间隔件以提高生产率并改善卫生状况。为了实现这些方面，在径向叶片1的环形焊接部分2的一个或两个表面上形成环形突起3。在焊接步骤中，当形成焊接部分2时同时形成环形突起3，在该步骤中刷毛束径向展开并且中心部分被焊接，从而制造径向叶片1。
Original abstractIn a 360-degree toothbrush in which a brush head is formed by superposing disk-shaped radial vanes 1 in an axial direction, the arranging pitch of the radial vanes 1 is increased so as to make the bristle density appropriate. Spacers are not used between the radial vanes 1 so as to increase the productivity, and to improve the hygiene condition. In order to realize these aspects, an annular protrusion or protrusions 3 are formed on one or both of the surfaces of an annular weld portion 2 of the radial vane 1 . The annular protrusion 3 is formed at the same time when forming the weld portion 2 in a welding step in which the bristle bundle is opened radially and the center part is welded so that the radial vane 1 is manufactured.
专利附图（8）
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