| 摘要 |
PROBLEM TO BE SOLVED: To suppress vibration noise caused by tooth strike noise at a time of meshing and impact at a time of meshing. SOLUTION: An elastically deformable overhanging part 7 projecting toward an adjoining tooth 2 side from a tooth surface 8 side is formed on an end surface 6 of tooth width direction end part of the tooth 2 as one piece. The overhanging part 7 is formed in such a manner that a section contacting tooth of mating gear becomes flush with a tooth surface 8 when the overhanging part 7 is pressed by tooth of meshing mating gear and is elastically deformed. The overhanging part 7 is a roughly plate shape projection piece, has a root part 7a in a position drawing back from the tooth surface 8, is formed roughly along the tooth surface 8, and has a radial direction inner end formed at a position inside of a tooth bottom surface 11 in the radial direction. A radial direction inner end of the overhanging part 7 is connected to a boss part 4 formed on an end surface side and a radial direction outer end is formed separately by a predetermined distance on the tooth bottom surface 11 side than a tooth tip surface 10 of the tooth 2. COPYRIGHT: (C)2005,JPO&NCIPI |
