| 摘要 |
<p>A gripper assembly for gripping sheet materials such as a folded newspaper includes a fixed jaw (20) and a movable jaw (30) for engaging opposite surfaces of the article. The jaws are supported on a base block (22) for pivotal movement relative to each other. The movable jaw is made of spring wire and includes a pair of gripping tangs (44, 46), a pair of spring coils (40, 42) associated one with each gripping tang, and a pressing element (48) extending between the gripping tangs. The movable jaw is pivotally mounted on a shaft about which the spring coils are wrapped. The spring coils bias the clamp arm as a whole, and also the gripping tangs, independently of one another, into clamping relation toward the fixed clamp arm. The pressing element clamps and presses the lower folded edge of a folded newspaper being held in the gripper assembly. The movable clamp arm is made from a single continuous piece of spring wire.</p> |
