To provide a pinching device capable of improving durability and operability with miniaturization.SOLUTION: The gripper comprises a plurality of pinching pieces (10) for opening and closing by turning around a turning fulcrum part (21) as a fulcrum, a plurality of pinching pieces (10) for pivotally moving the pivoting fulcrum part (30) which is supported in the tubular member (20) and advances and retracts the linear motion member (31), and a forward / backward movement mechanism (30) in which the front end side of the pinching member And an elastic member (40) which is connected to the outer peripheral side of the pivot fulcrum portion (21) and whose rear end side is connected to the linear motion member (31), the rectilinear motion of the linear motion member (31) ) To the pinching piece (10), thereby turning the pinching piece (10). (FIG.【課題】 小型化した上で、耐久性及び動作性を向上することができる挟み装置を提供する。【解決手段】回動支点部（２１）を支点にし回動することで開閉する複数の挟み片（１０）と、挟み片（１０）の前端側を前方へ突出させるようにして回動支点部（２１）を支持した筒状部材（２０）と、筒状部材（２０）内に支持されて直動部材（３１）を進退させる進退機構（３０）と、前端側を挟み片（１０）における回動支点部（２１）の外周側に接続するとともに後端側を直動部材（３１）に接続した弾性部材（４０）とを備え、直動部材（３１）の直進運動を弾性部材（４０）を介して挟み片（１０）に伝達し、挟み片（１０）を回動させるようにした。【選択図】 図３
