| 摘要 |
An improved severe duty grapple for attachment onto the end of a dipper stick of a backhoe has an arcuate-shaped upper jaw with an inner end and a backside. The upper jaw is pivotally attached near its inner end on its backside to the end of a dipper stick and a double action actuator or cylinder for operative pivotal movement of the upper jaw relative to the dipper stick. An arcuate-shaped lower jaw is provided with an inner end and a backside. The lower jaw is attached near its inner end on its backside to the dipper stick by a linkage for operative pivotal movement of the upper jaw relative to the lower jaw. A hollow tubular pivot is attached to the inner end of one of the jaws with open opposing ends. Two lug plates are mounted on the inner end of the other jaw each with an eyelet. The eyelets are alignable with the open ends of the tubular pivot. A pivot pin is passed through the tubular pivot and eyelets and secured thereat. |
