To provide a pressure sensitive switch which can sense external force certainly in a wide range of force applying direction while the section of the switch is prevented from being crushed excessively by a bent part of a window frame.
The first and second conductive members 42 and 43 are installed opposingly by the opposing surfaces 42a and 43a. On at least one 42a of the surfaces, a projection 45 protruding toward the other surface 43a is formed, and an insulating part 45a is formed at the tip of the projection 45. Even in the case an external force acts aslant on the conductive members 42 and 43, they 42 and 43 are dislocated from each other so that contacting is ensured, and also it is possible to prevent the members 42 and 43 from contacting when a pressure sensitive switch is installed at a bent part of a window frame.
KIKUTA TOMOYUKI
TANAKA TAKESHI
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