Patent attributes
An article gripping device includes a device body, a first ring fixed to the device body, a plurality of gripping members, a second ring, a driving mechanism and a plurality of linking mechanisms. The plurality of gripping members are arranged in a circumferential direction on an inner periphery side of the first ring with the gripping members capable of moving in a radial direction of the first ring. Corresponding end portions of each of the adjacent gripping members of the gripping members engage with each other. The second ring is capable of turning in the circumferential direction with respect to the first ring. The driving mechanism turns the second ring in the circumferential direction and is mounted to the first ring. The plurality of linking mechanisms move the gripping members in a radial direction of the first ring in association with the turning of the second ring.
