Direction input device and controller

A direction input device comprising:

• a tiltable input portion, the input portion including
• an upper component provided, at top, with an operated surface to be operated by a user, the upper component being operated to be tilted,
• a lower component provided below the upper component, the lower component being tilted together with the upper component, and
• a biasing portion provided between the upper component and the lower component, the biasing portion biasing the upper component and the lower component in a direction in which the upper component and the lower component are distant from each other in an upward-downward direction;
• a base against which the input portion is pressed from above, the base being shaped such that biasing force applied by the biasing portion to the lower component acts to move the input portion back to an initial position when the input portion is tilted from the initial position;
• a first slide portion that slides in a first direction with tilting of the input portion from the initial position in the first direction, the first slide portion being provided with a first hole through which the input portion passes, the first hole extending in a second direction perpendicular to the first direction;
• a second slide portion that slides in the second direction with tilting of the input portion from the initial position in the second direction, the second slide portion being provided with a second hole through which the input portion passes above the first slide portion, the second hole extending in the first direction;
• a first slid surface over which the first slide portion slides as being pressed against the first slid surface from below by the upper component biased upward by the biasing portion, the first slid surface being in a shape curved convexly upward;
• and
• a second slid surface over which the second slide portion slides as being pressed against the second slid surface from below by the upper component biased upward by the biasing portion, the second slid surface being in a shape curved convexly upward.