Various types of electrical connectors for electrically connecting electric wires and the like, including those for single wires and multiples-wires, are known. Most of such connectors are of the type comprising matable connectors having therein connectable electrical contacts. Such connectors have been used not only for connecting wires but also for connecting wires with a printed circuit board.
These connectors, when used for connecting electric wires and subjected to a large external force, may become loose or be disconnected thereby resulting in disruption of electrical connections in essential electronic equipment.