Microswitch

A microswitch, comprising:

• a casing consisting of a base casing half and a cover casing half;
• at least a pair of terminal pieces received, at intermediate parts, in slots provided in said base casing half and extending substantially perpendicularly from a surface opposing a corresponding surface of said cover casing half, each of said terminal pieces being provided with a first end extending in a cavity defined in said casing and a second end extending out of said casing;
• a contact mechanism accommodated in said cavity and electrically connected to said terminal pieces;
• and
• a push-button member elastically supported by spring means and projecting out of said casing for actuating said contact mechanism by movement of said push-button member;
• at least one of said terminal pieces being provided with a projection extending from a leading edge of said at least one terminal piece which is adapted to be received in one of said slots, and said slot being provided with a recess for receiving said projection;
• wherein said slot comprises an external part adjoining said cover casing half and an internal part, adjoining said recess, said internal part being narrower than said external part, and a projecting length of said projection as measured from said leading edge of said terminal piece is larger than a depth of said internal part measured as a distance between a bottom surface of said internal part and a boundary between said external part and said internal part.