Swirl-flow forming body

A swirl-flow forming body, comprising:

• a main body;
• an end face that is formed at the main body and faces a target object to which suction is applied;
• a hole that opens on the end face;
• a jetting port that is formed on an inner periphery of the main body, the inner periphery facing the hole;
• a fluid passage that allows fluid to be discharged into the hole via the jetting port so as to form a swirl flow that generates negative pressure;
• and
• a flange portion that is formed so as to protrude from the inner periphery, the flange portion allowing passage of fluid to which suction is applied by the negative pressure while preventing the fluid discharged via the jetting port from flowing out of the hole towards the target object, wherein the fluid passage is formed so as to allow the fluid discharged via the jetting port to flow in a direction away from the target object to be discharged from the hole.