| 摘要 |
PROBLEM TO BE SOLVED: To provide a shock sensor capable of reinforcing a magnet mechanically and structurally, stabilizing the operation of the contact section of a reed switch, and capable of obtaining high reliability. SOLUTION: This shock sensor has a structure that one end side of a spring 5 is stored in a counterbore section provided in a front stopper 7a and the outer periphery of a magnet 4b is guided by the inner wall of a case 2 so that the outer periphery of the magnet 4b is kept in no contact with the outer periphery of a tube 3 when the magnet 4b is moved, not a structure that the other end side of the spring 5 is stored in the magnet 4b when the magnet 4b is moved. The magnet has no volume loss and no magnetic flux reduction, it is reinforced mechanically and structurally, the magnet 4b is reliably operated without knocking the tube 3, the operation of the contact section of a reed switch 1 is stabilized, and durability and sensing reliability can be improved.
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