US 5,584,646 A · Handling apparatus

Abstract

A mobile, self-propelled, multicapability apparatus useful for gripping, lifting, moving, rotating, and otherwise manipulating heavy articles. The inventive apparatus comprises: a base structure; a turret rotatably attached to the base structure; a first boom structure having a first end portion pivotably attached to the turret; a second boom structure having a first end portion pivotably connected to the distal end portion of the first boom structure; a first hydraulic assembly for pivoting the first boom structure with respect to the turret; a second hydraulic assembly for pivoting the second boom structure with respect to the first boom structure; a head assembly having a first end portion and a second end portion; and a third hydraulic assembly, connected to the second boom structure and to the first end portion of the head assembly, for pivoting the head assembly with respect to the distal end of the second boom structure. The head assembly used in the inventive apparatus preferably includes a hydraulic rotary actuator for rotating the second end portion of the head assembly with respect to the first end portion of the head assembly.

Claims4

Dependent claims

An apparatus for handling heavy articles, said apparatus comprising:

a base structure;
a turret rotatably attached to said base structure;
a first boom structure having a first end portion pivotably attached to said turret, said first boom structure also having a distal end portion;
a second boom structure having a first end portion pivotably connected to said distal end portion of said first boom structure, said second boom structure being pivotable with respect to said distal end portion of said first boom structure in only a single plane;
first hydraulic operating means, connected to said turret and to said first boom structure, for pivoting said first boom structure with respect to said turret;
and
second hydraulic operating means, connected to said turret and to said second boom structure, for pivoting said second boom structure with respect to said first boom structure,
wherein said first boom structure is an A-frame structure having a first leg and a second leg, each of said legs being pivotably connected to said turret, and
said first hydraulic operating means comprises
a first hydraulic cylinder assembly having a first end connected to said turret and a second end connected to said first leg and
a second hydraulic cylinder assembly having a first end connected to said turret and a second end connected to said second leg.

8 more elements

Dependencies are inferred from the claim text.

Handling apparatus

Life of this patent

Handling apparatus

Life of this patent

Abstract

Claims4