US 5,507,237 A · Lifting apparatus for use with bulk bags

Abstract

A bulk bag lifting apparatus includes a structural frame having beams that accept forklifting tines during lifting operations from below and lugs at the top of the frame which facilitate jerking lifts from above. The base has a peripheral side wall that is fixed and structurally connected to the base. A plurality of four moving side wall portions are provided which can collapse upon the base and below the upper edge of the peripheral side wall. In this fashion, a number of different units can be stacked when the units are in a collapsed position. The side walls collapse in pairs including opposed diagonally opposite side walls collapsing at the same time and a pair at a time. In this fashion, a first two of the side walls can collapse into a position upon the base wherein the first two side walls are generally side by side and occupying different half base portions of the base. The second two side walls are also diagonally opposed and are spaced ninety degrees (90.degree.) with respect to the first two collapsing side walls so that the second two side walls collapse upon the first side walls. The second two side walls likewise are diagonally opposite and collapse upon half portions of the base.

Claims19

Dependent claims

A bulk bag lifting apparatus comprising:

a) a base member with rectangular corners, and having a plurality of spaced apart beams, each of the beams being arranged in generally parallel fashion and each beam having a hollow channel;
b) a frame including a fixed peripheral side wall portion that extends around the outer periphery of the base member and above the beams;
c) a plurality of four movable side walls, each of the side walls being pivotally attached to the frame at the periphery thereof, each of the side walls including a generally rigid structural half wall member that extends from a position adjacent a corner of the base member and terminating at a position that is less than the width of one side of the base member;
d) the plurality of side walls being collapsible in pairs including a first collapsing pair that collapses adjacent each other and in side-to-side relation wherein the center edge portion of one side wall communicates with the central edge portion of the opposing side wall in a collapsed position.

1 more element

Dependencies are inferred from the claim text.

Lifting apparatus for use with bulk bags

Life of this patent

Lifting apparatus for use with bulk bags

Life of this patent

Abstract

Claims19