A tilting device (100, 200), comprising: an upper movable plate arranged on a side on which an object to be tilted is arranged; an intermediate movable plate arranged below the upper movable plate and connected to the upper movable plate in a rotatable manner via an upper rotation shaft; a first actuator arranged between the upper movable plate and the intermediate movable plate, wherein the first actuator comprises a first expansion/contraction bag capable of expanding and contracting by supply and exhaustion of gas; a first lower movable plate arranged below the intermediate movable plate and connected to the intermediate movable plate in a rotatable manner via a first lower rotation shaft; a second actuator arranged between the intermediate movable plate and the first lower movable plate, wherein the second actuator comprises a second expansion/contraction bag capable of expanding and contracting by supply and exhaustion of gas; and a first connecting member that is connected to the upper movable plate in a rotatable manner via a first connecting rotation shaft at an end portion on a side of a first direction opposite to an end portion at which the upper movable plate is connected to the intermediate movable plate, and that is connected to the first lower movable plate in a rotatable manner via a second connecting rotation shaft at an end portion on a side of a second direction opposite to the first direction, characterized in that the first connecting rotation shaft of the first connecting member and the upper movable plate is arranged substantially coaxially with the first lower rotation shaft of the intermediate movable plate and the first lower movable plate when the first expansion/contraction bag is in a contracted state, and the second connecting rotation shaft of the first connecting member and the first lower movable plate is arranged substantially coaxially with the upper rotation shaft of the upper movable plate and the intermediate movable plate when the second expansion/contraction bag is in a contracted state. an upper movable plate arranged on a side on which an object to be tilted is arranged; an intermediate movable plate arranged below the upper movable plate and connected to the upper movable plate in a rotatable manner via an upper rotation shaft; a first actuator arranged between the upper movable plate and the intermediate movable plate, wherein the first actuator comprises a first expansion/contraction bag capable of expanding and contracting by supply and exhaustion of gas; a first lower movable plate arranged below the intermediate movable plate and connected to the intermediate movable plate in a rotatable manner via a first lower rotation shaft; a second actuator arranged between the intermediate movable plate and the first lower movable plate, wherein the second actuator comprises a second expansion/contraction bag capable of expanding and contracting by supply and exhaustion of gas; and a first connecting member that is connected to the upper movable plate in a rotatable manner via a first connecting rotation shaft at an end portion on a side of a first direction opposite to an end portion at which the upper movable plate is connected to the intermediate movable plate, and that is connected to the first lower movable plate in a rotatable manner via a second connecting rotation shaft at an end portion on a side of a second direction opposite to the first direction, characterized in that the first connecting rotation shaft of the first connecting member and the upper movable plate is arranged substantially coaxially with the first lower rotation shaft of the intermediate movable plate and the first lower movable plate when the first expansion/contraction bag is in a contracted state, and the second connecting rotation shaft of the first connecting member and the first lower movable plate is arranged substantially coaxially with the upper rotation shaft of the upper movable plate and the intermediate movable plate when the second expansion/contraction bag is in a contracted state. the first connecting rotation shaft of the first connecting member and the upper movable plate is arranged substantially coaxially with the first lower rotation shaft of the intermediate movable plate and the first lower movable plate when the first expansion/contraction bag is in a contracted state, and the second connecting rotation shaft of the first connecting member and the first lower movable plate is arranged substantially coaxially with the upper rotation shaft of the upper movable plate and the intermediate movable plate when the second expansion/contraction bag is in a contracted state.