Harvesters – Sheaf or bundle discharging carriers
Reexamination Certificate
2000-06-22
2002-07-30
Pezzuto, Robert E. (Department: 3671)
Harvesters
Sheaf or bundle discharging carriers
C056S476000
Reexamination Certificate
active
06425235
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates generally to agricultural machinery for harvesting crop material such as hay, straw, grass or the like, and more particularly the present invention relates to an agricultural bale accumulator having a load bed extension module.
A continuing trend to achieve an efficient farming operation and to decrease manual labor provides the need for efficient and capable agricultural machinery. One type of agricultural machinery is used to harvest crop material such as hay, straw, grass or the like.
An agricultural baler (hereinafter referred to as a “baler”) is a widely used piece of mobile equipment which collects and compresses the crop material as it travels over the ground to produce a compact unit of crop, commonly referred to as a bale. The baler may comprise a motorized machine driven by an operator or, alternatively, may comprise a wheeled frame adapted for traveling alongside or behind a tractor. Typically, a baler is a wheeled chassis adapted for hitched connection to a tractor to be towed in tandem behind the tractor. After the baler forms a bale, a cord, such as wire or twine, is tied around the bale to hold the bale together in its compressed form. The baler ejects the tied bales periodically from a bale chamber of a baler as the baler travels over the ground. Each ejected bale may be directly discharged either to a bale accumulator or to the ground for later pick up by a bale collector in order to make the harvesting of the crop material more efficient and to decrease manual labor. Bales provided by either the bale accumulator or the bale collector may then be deposited on a vehicle, such as a tractor trailer, for hauling to another location for storage.
A bale accumulator is a widely used piece of mobile equipment which may comprise a part of a baler or, alternatively, may comprise a wheeled chassis adapted for traveling alongside or behind a baler. Typically, a bale accumulator is a wheeled chassis adapted for hitched connection to a baler to be towed in tandem behind the baler. Examples of conventional bale accumulators are disclosed in U.S. Pat. Nos. 3,272,352, 4,310,275, 4,215,964 and 4,961,679. A bale accumulator is normally arranged to receive a plurality of successive bales as they eject from the bale chamber of the baler and to accumulate the received bales into a group or parcel of accumulated bales for temporary storage. The group of accumulated bales may then be discharged onto the ground in an ordered array permitting mechanical recovery thereof or, otherwise, be mechanically removed from the bale accumulator.
A bale collector is a widely used piece of mobile equipment which may comprise a motorized machine driven by an operator or, alternatively, may comprise a wheeled chassis adapted for traveling alongside or behind a tractor. Typically, a bale collector is a motorized machine driven by an operator. The bale collector is normally arranged to pick up individual bales from the ground and to accumulate the retrieved bales into a group or parcel of collected for temporary storage. The group of collected bales may then be discharged onto the ground in an ordered array permitting mechanical recovery thereof or, otherwise, be mechanically removed from the bale collector.
Since the phrases “bale accumulator” and “bale collector” are sometimes referred to interchangeably in the agricultural industry, the present invention generally refers to both pieces of equipment as a bale accumulator in the sense that both pieces of equipment receive and store bales. Therefore, it is contemplated that the present invention may be used on a bale collector as well as the bale accumulator, as described hereinabove.
Bales vary in size and shape according to the type of baler used to form the bales. The types of balers generally include rectangular balers and round balers. Some rectangular balers form so-called small-sized bales measuring about 36 cm×46 cm×31 cm to 132 cm and weighing 18 kg to 27 kg. Other rectangular balers form so-called medium-sized bales measuring about 80 cm×87 cm×up to 249 cm and weighing 300 to 600 kg. An example of a rectangular baler forming medium-sized bales is disclosed in U.S. Pat. No. 4,525,991. Still other rectangular balers form so-called large-sized bales measuring about 118 cm×127 by up to 274 cm and weighing up to 1000 kg. Examples of rectangular balers forming large-sized bales are disclosed in U.S. Pat. Nos. 4,034,543 and 4,307,528. Some round balers form so-called cylindrical-sized bales measuring about 1.75 m in diameter×1.75 m long and weighing 450 kg to 675 kg.
The bale accumulator of the present invention is particularly well-suited for use in conjunction with rectangular balers producing the medium-sized bales. However, it will be apparent from the description and claims that follow that the principles of the present invention are not limited to bale accumulators for rectangular balers producing medium-sized bales. The present invention may be utilized with great effectiveness in conjunction with rectangular balers producing the large-sized bales, rectangular balers producing the small-sized bales as well as round balers producing the cylindrical-sized bales.
U.S. Pat. Nos. 4,961,679 and 4,955,774 each disclose an agricultural bale accumulator having a bale-transfer and bale-turning mechanism attached to one side of a chassis and an extension table pivotally attached to an opposite side of the chassis. The extension table is moveable between a horizontal bale accumulating position and a vertical transport position. The extension table and a main bale-receiving table, supported by the chassis, form a load bed for accumulating thereon up to four medium sized bales. The extension table can accommodate one bale when located in the horizontal operative position. When the extension table is attached to the chassis, an additional castor wheel is provided on a main axle supporting the chassis in order to accommodate the extra load that can be accumulated on the extension table. Bales received on one side of the load bed are turned 90 degrees and transferred across the load bed. The bales are discharged using a bale-discharge conveyor which pushes the bales accumulated on the load bed off the load bed to the ground.
However, U.S. Pat. Nos. 4,961,679 and 4,955,774 do not disclose a support system which contacts the extension table at a location beyond a side of a chassis to which the extension table is attached. Therefore, the extension table does not have any direct support for a bale accumulated thereon from either the chassis or the ground. A lack of direct support for the extension table places all the stress due to the weight of a bale on the hinge which may weaken or break over time under normally rigorous field conditions. These patents also do not disclose attaching the extension table to the main bale-receiving table. These patents also do not disclose a bale discharge module for moving the main bale-receiving table between a bale accumulating position and bale discharging position, wherein the main bale-receiving table is in a horizontal position and an inclined position, respectively, relative to the chassis. Therefore, these patents do not teach or suggest a need for supporting an extension table, at a location beyond a side of the load bed to which the extension table is attached, when the extension table is in the unstowed position and when the load bed is in a bale accumulating position and/or a bale discharging position relative to a main frame.
U.S. Pat. No. 4,844,675 discloses an agricultural bale accumulator having a center table, a right table and a left table. The center table receives large-sized bales from a bale chamber of a baler. A push bar pushes a bale on the center table to the right or left table. The right and left tables are provided with associated extensions which appear to have a width dimension approximately equal to one third a width dimension of each of the right and left tables. A hinge connects e
Kaschke Kevin D.
Spaniol Phillip G.
Spaniol Stephen J.
Petravick Meredith C.
Pezzuto Robert E.
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