| 主权项 |
1. An apparatus to support a skid plate during installation to a vehicle, comprising:
a lower frame; a lifting apparatus mounted to the lower frame; an upper frame mounted to the lifting apparatus such that the lifting apparatus selectively raises or lowers the upper frame relative to the lower frame to adjust the height of the skid plate relative to an installation surface of the vehicle, the upper frame being rotatable about a longitudinal axis of the lifting apparatus and pivotable about an axis generally perpendicular to the longitudinal axis to orient the skid plate relative to the installation surface; and a pivot assembly to mount the upper frame to the lifting apparatus, the pivot assembly comprising:
a center plate having a support member rotatably connected to the lifting apparatus such that the center plate rotates about the longitudinal axis of the lifting apparatus via the support member, the center plate including a plurality of adjustment holes therein;a first plate mounted to the upper frame adjacent to a first side of the center plate;a second plate mounted to the upper frame adjacent to a second side of the center plate opposite the first side; anda locking member mounted to the first plate to selectively engage at least one of the adjustment holes such that when the locking member is disengaged from the adjustment holes, the upper frame pivots within a range of predetermined angles relative to the lower frame, and when the locking member is engaged in at least one of the adjustment holes, the upper frame is locked at a predetermined angle determined by a position of the at least one engaged adjustment hole in the center plate; wherein the lifting apparatus comprises a first hydraulic lift and a second hydraulic lift, the first hydraulic lift including a base plate and at least four hydraulic jack members spaced apart along a perimeter of the base plate, each of the four hydraulic jack members having reciprocating jack rods operatively connected to the second hydraulic lift. |
