Limit switch

In a limit switch comprising a switching means having a push-button for actuating said means, a housing having an interior space for housing said switching means, means provided to communicate said interior space with the exterior of said housing for operating said push-button to actuate the switching means by transmitting an externally given operating force to the push-button, means cooperating with said operating means for absorbing said operating force applied sequentially after an actuation of the switching means, the combination comprising a first spring means fixed at one end within said interior space of the housing and extended at the other end to be engageable with the push-button, said the other end of said first spring means providing a first biasing force acting substantially in the same direction as said operating force, and a second spring means fixed at one end within said interior space of the housing and extended at the other end to a position adjacent said the other end of said first spring means to provide thereto a second biasing force in a direction opposite to the operating force for normally restraining the other end of the first spring means from engaging the push-button against said first biasing force, said second spring means engaging said operating means to act as said absorbing means and releasing said restraint to the other end of the first spring means in response to the operating force applied through the operating means to allow the first spring means to engage and operate the push-button with the first biasing force.