| 摘要 |
PROBLEM TO BE SOLVED: To provide a gear capable of enhancing axial bonding strength of a synthetic resin annular member and a metallic core member. SOLUTION: In a helical gear 10 equipped with a synthetic resin annular member 21 containing a tooth 21a in the outer periphery and a metallic core member 22 bonded to the inside of the annular member 21 by insert-molding. The core member 22 consists of a disk part 22a the center of which has a fitting hole 22b fitting an output shaft 17 and a plurality of protrusions 22c protruded in a radial direction from the outer peripheral part of the disk part 22a and bent in an axial direction. A plurality of protrusions 22c are respectively bent so as to be inclined outside toward the disk plate 22a. COPYRIGHT: (C)2007,JPO&INPIT
|
