Lifting mechanism for an agricultural harvester
View Patent ↗An agricultural harvester is disclosed having a crop processor movable into and out of the crop flow path and a service compartment arranged rearwardly of the crop flow path for accommodating an operator. A lifting mechanism is provided in the service compartment which is movable between a first position above the crop processor when the latter is withdrawn from the crop flow path and a second position outside the service compartment.
1. An agricultural harvester having a crop processor movable into and out of the crop flow path, the agricultural harvester comprising:
a service compartment arranged rearwardly of the crop flow path for accommodating an operator; and
a lifting mechanism further including,
an upright post extending substantially vertically from the harvesting machine,
a telescoping beam extending substantially horizontally from the upright post, wherein the beam is pivotally connected to the post to allow the pivoting movement between a first and second position, further wherein the beam telescopically moves between an extended position and a collapsed position, and
a hoist slidably mounted to the beam, wherein the hoist has rollers for slidable movement along the beam, such that the hoist is adjacent to the post when the beam is in the collapsed position, further wherein the beam in the extended position passes through an opening in a side entrance of the service compartment so that a distal end of the beam protrudes beyond the outer bounds of the harvesting machine, thereby allowing the hoist to move the crop processor in and out of the service compartment of the harvesting machine.
2. An agricultural harvester as claimed in claim 1 , wherein the crop processor and a crop accelerator are combined with one another to form a single structural unit, the single structural unit being pivotably movable by the lifting mechanism between the first position inside the harvester and the second position outside the harvester.
3. An agricultural harvester as claimed in claim 1 , wherein the support beam is constructed from two parts that can slide relative to one another or that one can collapse telescopically into the other.