| 摘要 |
A tooth (22') for a blade (10) of a hair cutting apparatus includes a root (24) secured to a base (12) of the blade, a tip (26) opposite the root, and a longitudinal axis of the tooth defined between the root and the tip. A lower, planar cutting surface (28) is provided on the tooth, as is an upper surface (30) opposite the lower surface, and sidewalls (32) separating the upper surface from the lower surface. At least a portion of the upper surface and the sidewalls (32) is elliptical in the direction of the longitudinal axis, beginning at the tip (26). |
