| 摘要 |
Each of both clamping jaws of a product gripper are formed by a holder portion and an extension portion formed of one-piece with the related holder portion. Both of the holder portions are held in their closed position by means of a closure spring. The clamping jaws are conjointly pivotable about a shaft which simultaneously serves as the pivot shaft for the hinge connection between both of the clamping jaws. If the product gripper is rocked into a product receiving position, then the extension portion of one clamping jaw is located at one side of a stop in contact therewith. For opening the gripper there is exerted an opening force upon the extension portion of the other clamping jaw, so that the related holder portion is raised from the other holder portion against the force of the closure spring. For releasing the seized product the clamping jaws are rocked in clockwise direction into their product release position where the extension portion of the other clamping jaw bears against the stop. Under the action of an opening force exerted upon the extension portion of said one clamping jaw and holder portion of such one clamping jaw is raised, against the action of the closing spring, from the holder portion of the other clamping jaw. |
