| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid level detector in which influences of a magnetic field of a magnet 9 operating on a lead switch 4 can be reduced sufficiently when a float 8 is sufficiently separated from the lead switch 4 by elevating a liquid level. <P>SOLUTION: A housing unit 1b is passed through the inside of an insertion hole 8a of the float 8 in such a manner that a longer inner diameter DL of the insertion hole 8a becomes a liquid level rising/falling direction. The magnet 9 is held between the insertion hole 8a and a liquid level rising-side end of the float 8, and a stopper 8s is formed between the insertion hole 8a and a liquid level falling-side end of the float 8. At a side of the stopper 8s of the float 8, a lower slit 8b is provided which is formed while starting from an end at a side of a main body 1a to the stopper 8s and communicated with the insertion hole 8a. The float 8 is carried up to a liquid level rising side while being tilted with the stopper 8s of the float 8 as a supporting point by elevating a liquid level, and the magnet 9 and the lead switch 4 are separated sufficiently. <P>COPYRIGHT: (C)2012,JPO&INPIT |
