PROBLEM TO BE SOLVED: To provide robot forceps capable of favorably performing both of opening/closing of a gripper.SOLUTION: The robot forceps include: a drive unit an insertion tube extending from the drive unit a gripper provided at a dital end of the insertion tube an operating member disposed inside the distal end of the insertion tube, and directly pushing the gripper or pushing it via an intermediate member by supply of the operating fluid in the pressure chamber so as to open/close the gripper and a wire connected to the gripper, the intermediate member, or the operating member and extending to the inside of the drive unit. The drive unit includes: a supply/discharge mechanism that, when one of the opening/closing of the gripper is performed, supplies the operating fluid via a supply/discharge passage to the pressure chamber and, when the other of the opening/closing of the gripper is performed, discharges the operating fluid from the pressure chamber via the supply/discharge passage and a pulling mechanism for pulling the wire, when the operating fluid is discharged from the pressure chamber.SELECTED DRAWING: Figure 1【課題】グリッパーの開閉の双方を良好に行うことができるロボット鉗子を提供する。【解決手段】ロボット鉗子は、駆動ユニットと、駆動ユニットから延びる挿入管と、挿入管の先端に設けられたグリッパーと、挿入管の先端部内に配置され、圧力室内への作動液の供給によりグリッパーを直接的にまたは中間部材を介して押してグリッパーを開くか閉じる作動部材と、グリッパー、中間部材または作動部材に接続され、駆動ユニット内まで延びるワイヤと、を備え、駆動ユニットは、グリッパーの開閉の一方が行われる際に給排路を通じて圧力室内に作動液を供給し、グリッパーの開閉の他方が行われる際に給排路を通じて圧力室から作動液を排出する給排機構と、圧力室から作動液が排出される際にワイヤを引っ張る引張機構と、を含む。【選択図】図1
