A tilt mechanism for an information device including a body unit and a display unit, the tilt mechanism being capable of changing a tilt angle of the display unit after the display unit is tilted on the body unit by pulling up an upper end of the display unit laid on the body unit and sliding a lower end of the display unit over the body unit, the tilt mechanism comprising: a running roller provided at the lower end of the display unit; a rotating shaft support unit provided on an upper surface of the body unit and configured to rotatably engage a rotating shaft of the running roller; a first link mounted on the body at one end of the first link so as to rotate by using a first rotating shaft, the first link including a first engaging unit at the other end of the first link; a second link mounted on the display unit at one end of the second link so as to rotate by using a second rotating shaft, the second link including a second engaging unit at the other end of the second link; and a link mechanism (30A1, 30A2, 30B1, 30B2, 30B3, 30B4, 30B5) comprising a lock mechanism and configured to maintain an engaging state in which the first engaging unit and the second engaging unit are engaged together in a sliding and tilting operation by which the display unit is pulled up from a state where the display unit is laid on the body unit, the engaging state using the lock mechanism in such a manner that a distance between the first rotating shaft and the second rotating shaft is maintained to a maximum distance until the rotating shaft of the running roller is engaged with the rotating shaft support unit to complete the sliding and tilting operation, the link mechanism being configured to be deformable in a further tilting operation when the lock mechanism is unlocked, so that the distance between the first rotating shaft and the second rotating shaft is shortened by releasing the engaging state of the first engaging unit and the second engaging unit after the rotating shaft of the running roller is engaged with the rotating shaft support unit. a running roller provided at the lower end of the display unit; a rotating shaft support unit provided on an upper surface of the body unit and configured to rotatably engage a rotating shaft of the running roller; a first link mounted on the body at one end of the first link so as to rotate by using a first rotating shaft, the first link including a first engaging unit at the other end of the first link; a second link mounted on the display unit at one end of the second link so as to rotate by using a second rotating shaft, the second link including a second engaging unit at the other end of the second link; and a link mechanism (30A1, 30A2, 30B1, 30B2, 30B3, 30B4, 30B5) comprising a lock mechanism and configured to maintain an engaging state in which the first engaging unit and the second engaging unit are engaged together in a sliding and tilting operation by which the display unit is pulled up from a state where the display unit is laid on the body unit, the engaging state using the lock mechanism in such a manner that a distance between the first rotating shaft and the second rotating shaft is maintained to a maximum distance until the rotating shaft of the running roller is engaged with the rotating shaft support unit to complete the sliding and tilting operation, the link mechanism being configured to be deformable in a further tilting operation when the lock mechanism is unlocked, so that the distance between the first rotating shaft and the second rotating shaft is shortened by releasing the engaging state of the first engaging unit and the second engaging unit after the rotating shaft of the running roller is engaged with the rotating shaft support unit.