A slide mechanism of the present invention is provided between a first casing section and a second casing section arranged so that one surfaces thereof face each other, and is capable of, with respect to the first casing section, relatively moving the second casing section, on the one surface of the first casing section, from a basic position. The slide mechanism includes: a first slit which extends along a predetermined linear movement direction on the one surface of the first casing section; a second slit which extends in parallel with the first slit on the one surface of the first casing section; a third slit which extends on the one surface of the second casing section so as to correspond to the first slit; a fourth slit which extends on the one surface of the second casing section so as to correspond to the second slit; a first support shaft which is inserted in the first slit and the third slit, is rotatable about its axis with respect to at least either one of the first slit and the third slit, and is movable along the first slit and the third slit; and a second support shaft which is inserted in the second slit and the fourth slit, is rotatable about its axis with respect to at least either one of the second slit and the fourth slit, and is movable along the second slit and the fourth slit.