Handling: hand and hoist-line implements – Grapple – Load shifting
Patent
1997-01-07
1999-02-02
Kramer, Dean
Handling: hand and hoist-line implements
Grapple
Load shifting
294104, 294 88, 414732, 414740, B66C 304
Patent
active
058654925
ABSTRACT:
A hydraulic grapple assembly couples to a link pivot and to a dipper pivot of an arm of an equipment. The assembly includes a grapple having a fixed jaw and a movable jaw. The fixed jaw extends in a direction substantially parallel to an imaginary line drawn between the link pivot and the dipper pivot when the grapple assembly is coupled to the arm. A distal end of the fixed jaw is positioned closer to the link pivot than to the dipper pivot when the grapple is coupled to the arm. The movable jaw has a proximal end coupled to a proximal end of the fixed jaw by an articulation. A hydraulic grapple actuator moves a distal end of the movable jaw between open and closed positions relative to a distal end of the fixed jaw. The grapple assembly can include a hydraulic swinger mechanism that rotates the grapple about an axis that is approximately aligned with the imaginary line through the dipper pivot and the link pivot.
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"New from Wain-Roy--More Safety. More Economy. More Versatility.--Remote Hydraulic Quick Coupler; Quick Change Jaw.RTM.; Piggy Ban Swinger", Wain-Roy.RTM., Inc., Hubbardston, MA, Feb., 1995.
"Wain-Roy.RTM. Jaw and Quick Change Jaw", Wain-Roy.RTM., Hubbardston, MA, Oct., 1992.
"NYe.RTM. Nye Manufacturing Ltd. Custom Attachments", Nye Manufacturing Ltd., Mississauga, Ontario, Canada, 1992.
"Wain-Roy.RTM. Versatile Jaw.RTM. and Rota-Jaw.RTM. Bucket", Wain-Roy.RTM., Inc., Hubbardston, MA, 1990.
"Get Unmatched Job Efficiencies with Wain-Roy.RTM. Quick Change Toolhitch.RTM. Coupler System", Wain-Roy.RTM., Inc., Hubbardston, MA, Aug., 1985.
Kramer Dean
WEC Company
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