Material or article handling – Vertically swinging load support – Shovel or fork type
Reexamination Certificate
2006-11-28
2006-11-28
Shriver, J. Allen (Department: 3618)
Material or article handling
Vertically swinging load support
Shovel or fork type
C414S687000, C414S694000, C414S695700
Reexamination Certificate
active
07140829
ABSTRACT:
The operating pressure for the hydraulic drive means (15; 26) is generated in the chassis (2) of the vehicle (1). A revolving structure (3) is arranged on the chassis, said revolving structure carrying the driver's cabin (7), a boom (5) with a tools (6) and a hydraulic motor for rotation of the revolving structure (3) relative to the chassis. The revolving structure is connected to the chassis by a live ring (16;23) that is driven by said hydraulic motor and has a hydraulic fluid duct (12;24) between the chassis and the revolving structure. The chassis is provided with an eccentric plate (11) carrying on its top side the above-mentioned live ring for the revolving structure while the bottom side of said eccentric plate has an eccentrically supported displacement bearing (13). Said displacement bearing is secured by a latching device (25) on the bottom side of the eccentric plate (11) during normal operation of the vehicle or digger (1). In order to displace the revolving structure (3) relative to the chassis (2), the displacement bearing (13) is unlatched and the revolving structure is fixed to the ground with the aid of the boom (5). Displacement of the revolving structure is carried out by actuating the hydraulic motor when the displacement bearing is unlatched. A linearly guided displacement plate (21) for lateral displacement can also be used instead of the eccentric plate.
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Erlinger Josef
Neunteufel Hans
Collado Cynthia F.
Jordan and Hamburg LLP
Shriver J. Allen
LandOfFree
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