GRIPPING DEVICE

PROBLEM TO BE SOLVED: To provide a gripping device having a simple structure and simple control configuration.SOLUTION: An adsorbent 3 includes: a contact part 5 having a contact surface 5A in contact with an object 2; a projecting part 6 pressed to a projection position projecting from the contact surface 5K through a through-hole 5K formed in the contact part 5 to the object side, and set to a retreated position retreated from the projection position toward the contact surface due to contact with the object 2; a valve part 7 integrated with the projecting part 6 so as to close the through-hole 5K at the projection position and to open the through-hole 5K at the retreated position of the projecting part 6; and a communication hole 7K disposed at a position separated in a radial direction from the through-hole 5K and communicating with a suction path 8 to an adsorption pump 4.