SCREW LOCKING MEANS, WATER LEVEL DETECTOR USING THE SAME, AND DRAIN PUMP

摘要

PROBLEM TO BE SOLVED: To provide a screw locking means capable of locking a screw without employing a locking method such as bonding or thermal deposition, and a drain pump provided with water level detector using that screw locking means.

SOLUTION: This screw locking means is composed of a circumferential wall part 85 formed to be engaged with a nut 76 to lock rotation of the nut 76, and an elastic part 84 formed at a lower part of the circumferential wall part 85, and having elasticity in a screw-driving direction. An elastic member 761 to be tightened by the nut 76 is disposed around a screw part 77 in the circumferential wall part 85.

COPYRIGHT: (C)2004,JPO