Abstract
A robot includes an exterior, a body, and a plate-shaped member (fixing member). The body is covered by the exterior and is provided with a screw hole (attachment receiver), a first protrusion (engager), and a second protrusion (engager). The plate-shaped member is fixed to the inner surface of the exterior, and includes a through-hole (attacher) disposed at a position where the screw hole (attachment receiver), a hole (engagement receiver) with which a first protrusion is engaged, and a notch (engagement receiver) with which a second protrusion is engaged. Engagement of the first protrusion and the second protrusion with a hole and a notch positions the plate-shaped member relative to the body.