| 摘要 |
<p>A structure for fixing an impeller and magnet in a magnetically driven pump, in which the impeller and the driven magnet are instantaneously fixed together. Snap arms (44) having displaceable free ends are integrally formed on the same circle, in a synthetic resin impeller (36) including a blade part (40). A snap hook (48) is formed at the free end of each of the snap arms (44). A circular hollow cylindrical driven magnet (32) is fitted to the snap arms (44) from the outside, and the snap hooks (48) of the snap arms (44) are engaged with the driven magnet (32) with the driven magnet (32) in contact with a stopper. The driven magnet (32) cannot be moved in the direction opposite to the advancing direction of the driven magnet because the snap arms (44) are engaged with the snap hooks (48). Thus, the driven magnet (32) is fixed to the impeller (36).</p> |
