Patent ID: 6414253
Filing Date: 2002-07-02
Classification: H01H

Abstract:
An apparatus, comprising:a tactile switch installed on a circuit board positioned within a main body to detect both an insertion and a removal of a predetermined object from the main body; an elastic plate installed and spaced a predetermined distance from said tactile switch and elastically pressing said tactile switch in response to application of an external force to said elastic plate; an elastic member installed to face said tactile switch, a first end of said elastic member contacting said elastic plate, said elastic plate being interposed between said elastic member and said tactile switch; and a button having a first end contacting a second end of said elastic member and a second end of said button being pressed by the predetermined object when the predetermined object is inserted in the main body, said elastic member and said elastic plate being pressed in succession by said button to operate said tactile switch, with said button, said elastic member and said elastic plate being installed and supported in case provided in the main body and the second end of said button protruding towards said object through a slot formed in said case, with said button having the first end being circular and the second end being oval, a surface area of the second end being less than the surface area of the first end, thus allowing only a portion of said button to protrude through the slot of said case.