Material or article handling – Vertically swinging load support – Grab
Patent
1983-01-05
1986-08-19
Siemens, Terrance L.
Material or article handling
Vertically swinging load support
Grab
414917, 414569, 144 3D, B66C 316
Patent
active
046066942
ABSTRACT:
Load skidding vehicles commonly include a grapple assembly (42) which under load conditions can pivot rearwardly about its support point (52) resulting in disproportionate loading of the rear wheels and consequently instability of the vehicle. A connecting member (62) is pivotally attached between the grapple (42) and a hydraulic cylinder (74) which is attached to the skidder (2). Operation of the hydraulic cylinder (74) causes the grapple (42) to rotate about its support pivot (52). The hydraulic cylinder (74) may be locked causing the grapple (42) to be locked in relation to the boom assembly (26). During load hauling operations this mechanism is used to lock the load in a position near the vehicle resulting in increased stability. The mechanism is also of use in positioning the grapple assembly (42) with respect to the load prior to grasping it.
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Meisel, Jr. Thomas C.
York Lyle E.
Caterpillar Inc.
Keen J. W.
Siemens Terrance L.
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