Abstract

A grapple for mounting to a boom of a boom crane includes a body member for mounting to the end of a boom of a boom crane including a first wing member and a second wing member and opposing first and second jaw members. Each jaw is hingably coupled to the body member, and hinges with respect to the body member by the action of a hydraulic cylinder. A first end of the hydraulic cylinder is coupled to the jaw member and a second end of the hydraulic cylinder is coupled to a portion of one of the wing members. The first and second wing members extend to position the second end of each hydraulic cylinder rearward of an end of the boom of the boom crane or a coupling between the body member and the boom of the boom crane.

IPC Classes  ?

• B66F 9/18 - Load gripping or retaining means
• B66F 9/22 - Hydraulic devices or systems
• B66C 3/16 - Grabs opened or closed by driving motors thereon by fluid motors
• B66F 9/065 - Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
• B66C 1/58 - Gripping members engaging only the external or internal surface of the articles and deforming the articles, e.g. by using gripping members such as tongs or grapples

Abstract

The invention relates to grapple for mounting to a boom of a boom crane. The grapple has a body member for mounting to the end of a boom of a boom crane including a first wing member and a second wing member and opposing first and second jaw members. Each jaw is hingably coupled to the body member, and hinges with respect to the body member by the action of a hydraulic cylinder. A first end of the hydraulic cylinder is coupled to the jaw member and a second end of the hydraulic cylinder is coupled to a portion of one of the wing members. The first and second wing members extend to position the second end of each hydraulic cylinder rearward of an end of the boom of the boom crane or a coupling between the body member and the boom of the boom crane.

IPC Classes  ?

• B66C 1/42 - Gripping members engaging only the external or internal surface of the articles
• B66C 1/44 - Gripping members engaging only the external or internal surface of the articles and applying frictional forces
• B66C 3/16 - Grabs opened or closed by driving motors thereon by fluid motors
• E02F 3/413 - DippersBuckets with grabbing device

Abstract

The invention relates to grapple for mounting to a boom of a boom crane. The grapple has a body member for mounting to the end of a boom of a boom crane including a first wing member and a second wing member and opposing first and second jaw members. Each jaw is hingably coupled to the body member, and hinges with respect to the body member by the action of a hydraulic cylinder. A first end of the hydraulic cylinder is coupled to the jaw member and a second end of the hydraulic cylinder is coupled to a portion of one of the wing members. The first and second wing members extend to position the second end of each hydraulic cylinder rearward of an end of the boom of the boom crane or a coupling between the body member and the boom of the boom crane.

IPC Classes  ?

• B66C 3/16 - Grabs opened or closed by driving motors thereon by fluid motors
• B66C 1/44 - Gripping members engaging only the external or internal surface of the articles and applying frictional forces
• B66C 1/42 - Gripping members engaging only the external or internal surface of the articles
• E02F 3/413 - DippersBuckets with grabbing device