Tilting device

A cleaning device for cleaning an object, comprising:

• a base;
• and
• a index table as moving body being disposed at the base,
• the index table disposed at the base is turnable around a pivot shaft :and
• a driving mechanism that includes:
• a driving device including a drive shaft configured to rotate around a first axis;
• and
• a first engaging member disposed on the first axis to rotate integrally with the drive shaft;
• and
• a power transmission mechanism that includes:
• a second engaging member disposed on the first axis engageable with/disengageable from the first engaging member;
• a propeller shaft disposed on the first axis, one end side of the propeller shaft being inserted into the second engaging member to be rotatable integrally with the second engaging member around the first axis;
• a piston that reciprocates the second engaging member between a first position and a second position along a direction of the first axis;
• and
• a reduction gear joined to the other end side of the propeller shaft to decelerate the rotation of the propeller shaft, the reduction gear causing an output shaft joined to the object to rotate around a second axis, wherein:
• the propeller shaft includes a spline shaft,
• the second engaging member has a spline hole meshing with the spline shaft,
• while the second engaging member is at the first position by an operation of the piston, the first engaging member separates from the second engaging member, and
• while the second engaging member is at the second position by the operation of the piston, the first engaging member engages the second engaging member and the spline shaft meshes with the spline hole to rotate the first engaging member, the second engaging member, and the propeller shaft integrally with the drive shaft.