| 摘要 |
A grapple adapted for mounting on vehicles such as farm tractors includes an open-ended housing structure having top, bottom and spaced sidewalls together with a main medial supporting plate interconnected integrally with the top and bottom walls. The web plate and the top and bottom walls are formed of a section of a conventional I-beam. A pair of tines are pivotally mounted one on each side of the web plate on stub shafts near the open ends of the housing structure and motive means within the housing imparts operating movement to the tines. The tines are interconnected with each other by means of a system of coupling cranks affixed to the stub shafts and an interconnecting coupling link and the entire structure is supported by the vehicle on a transverse swivel bar supported by the tractor which is received within a swivel cavity formed atop the housing structure and rigidly secured thereto. The swivel cavity is arranged so as to accommodate angular movement or yaw of the grapple relative to the vehicle and its associated swivel bar.
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