Gripper, grasping device, and industrial robot

A gripper comprising integrally:

• a palm portion;
• a plurality of finger portions protruding from a periphery of the palm portion and configured to fall toward the palm portion by deforming the palm portion in a thickness direction;
• a connecting portion formed in a position surrounding an outer edge of the palm portion on a side opposite to a side formed with the finger portions, the connecting portion connected to a case;
• and
• a high-strength portion provided between the palm portion and the connecting portion, the high-strength portion having a predetermined length from the outer edge of the palm portion in the thickness direction of the palm portion, and the high-strength portion being less likely to be deformed than the palm portion, wherein
• a base end of the high-strength portion comes into contact with a part of the case, and
• the high-strength portion is configured to be microscopically elastically deformed toward the palm portion with the base end as a fulcrum according to a deformation of the palm portion.