| 摘要 |
PURPOSE:To obtain a core which is excellent in mass productivity by bonding both halves by utilizing the end faces of a core coil side, thereby accurately butting the end faces and readily and rigidly bonding the both halves. CONSTITUTION:Both halves 21, 22 are opposed at the end faces of core coil units 3 and at the end faces of a pair of sides 41, 42, respectively mounted on upper and lower dies of a pressing machine, projections 6 are respectively engaged with grooves 8 to press-fit the engaging strip 7 into the engaging groove 9, thereby bonding them. In this case, the swelled part 12 and the engaging hole 11 as the coupling parts of the iron plates 101, 102 of the halves 21, 22 are disposed in the vicinity of the strip 7 and groove 9, and the plates 101, 102 are not accordingly isolated at the layers at the part 12 but the press-fitting work can be effectively performed. Since the strip 7 and the groove 9 respectively have superior arc convex and concave surfaces and can be forcibly engaged between the convex strip 7 and the concave groove 9, the halves 21, 22 can be strongly bonded. In this manner, a core which is excellent in mass productivity can be obtained. |
