| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a liquid level detection device for improving resistance to a magnetic noise which acts from the outside.SOLUTION: A liquid level detection device 100 includes: a casing 20 fixed to a washer tank 90; and a float 30 assembled so as to be movable in a vertical direction VD with respect to a casing 20. A magnet 50 is stored in the float 30. A lead switch 40 which switches from an off-state to an on-state in accordance with the approach of the magnet 50 is stored in a lead switch shaft 23 disposed in the casing 20. The lead switch shaft 23 is inserted into a through-hole 31 disposed in the float 30 such that the float 30 is supported so as to be vertically movable. Height h in the vertical VD becomes smaller than width w in a horizontal direction WD on the cross-sectional surface of the lead switch shaft 23. Thus, it is possible to enlarge a stroke amount St of the float 30.</p> |
