| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a stroke sensor capable of improving output accuracy by reducing random variation due to assembly.SOLUTION: Provided is a stroke sensor 1 in which a shaft 3 is pushed by an elastic member 5 in a direction to always protrude from a case body 2, and the movement amount of a magnet 4 provided on the shaft 3 reciprocating along with the movement of an object to be detected is detected by a magnetic detection element 9a, wherein a first accommodation part 2a for accommodating the shaft 3 and the elastic member 5 is provided on one opening side of the case body 2; a second accommodation part 2b for accommodating the magnet 4 provided on an end side of the shaft 3 so as to be able to reciprocate is provided continuously to the first accommodation part; the magnetic detection element 9a and a third accommodating part 2f for accommodating and holding a circuit board 10, on which the magnetic detection element 9a is mounted, are provided on the other opening side of the case body 2; and a bearing member 6 for retaining and journaling the shaft 3 is provided at an end on the one opening side of the case body 2.</p> |
