| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid level-sensing device that can inhibit the deviation of an axis for rotating an arm holder and can be thinned. SOLUTION: This liquid level-sensing device is provided with a float arm 2 having a float that floats on a liquid surface, an arm holder 4 that retains the float arm 2 and at the same time has a shaft part 24 that is the rotation support of the float arm 2, a lower frame 29 that is a first frame having a first bearing part 31 for supporting the shaft part 24 of the arm holder 4, an upper frame 28 that is a second frame having a second bearing part 30 for supporting the shaft part 24 of the arm holder 4, a circuit substrate 7 that is fixed to the lower frame 29, and a contact retention member 5 that has a slide contact 6 being slid on the circuit substrate 7 and is fixed to the arm holder 4, thus retaining the arm holder 4 using the upper and lower frames 28 and 29 and at the same time fixing the upper and lower frames 28 and 29.
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