| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid level sensor reduced in the number of parts and miniaturized without lowering the degree of detection. SOLUTION: In this liquid level sensor 1, a first bearing part 2a and a second bearing part 2b are formed with a space at a frame 2, and an upper holding part 4a and a lower holding part 4b are formed with a space at an arm holder 4. The lower holding part 4b of the arm holder 4 is insert-fitted between the first bearing part 2a and second bearing part 2b of the frame 2 in the state of allowing the upper face of the lower holding part to abut on the lower face of the second bearing part 2b, and the first bearing part 2a is insert-fitted between the upper holding part 4a and lower holding part 4b of the arm holder 4. A rotating shaft part 3a of a front arm 3 is insert-fitted into the upper holding part 4a, the first bearing part 2a, the lower holding part 4b and the second bearing part 2b. The frame 2 and the arm holder 4 are formed of different resin materials, and either one of the resin materials has excellent sliding property. COPYRIGHT: (C)2004,JPO
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