Presses – Binding – With material winding or folding
Reexamination Certificate
1999-07-20
2001-05-29
Gerrity, Stephen F. (Department: 3721)
Presses
Binding
With material winding or folding
C056S341000, C100S013000, C100S088000
Reexamination Certificate
active
06237478
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention pertains to a round bale press with a pressing chamber, which is surrounded by compaction elements and with a tying apparatus that wraps twine on the circumferential surface of a rotating bale made in the pressing chamber, and in particular to apparatus for securing the loose end of the wrapped twine to prevent the twine from coming loose from the bale.
Conventionally, round bales are tied with twine in round bale presses in order to prevent the harvested crop from falling apart after it leaves the pressing chamber. The twine is only loosely wrapped on the peripheral surface of the bale with the end of the twine lying loose and untied. Therefore, it can happen that after ejection of the bale from the pressing chamber, depending on the turning direction of the bale, the twine becomes unwrapped and the bale falls apart, or that the loose end of the twine becomes an impediment to further handling of the bale.
DE-A-41 32 664, discloses two devices by means of which the twine end can be secured on the bale, one device acting to pressing the twine into the bale, and the second device acting to secure the twine in place with adhesive tape.
A German patent application, with file number 197 05 582.6, filed Feb. 14, 1997, and a corresponding U.S. patent application Ser. No. 09/014,237, filed Jan. 27, 1998, now U.S. Pat. No. 5,941,166, issued Aug. 24, 1999, show a round bale press with a slot shaper, attached to resist torsion, that, in close contact with the revolving bale, cuts a slot or groove into the circumferential surface of the bale in which the loose ends of the twine are held by a friction fit.
The problem with this invention consists in the fact that this method of securing the twine is relatively complicated.
SUMMARY OF THE INVENTION
According to the present invention, there is provided a novel structure for securing twine ends to a wrapped round bale.
An object of the invention is to provide a twine end securing device which operates to form a groove in the circumference of a bale in a location where the twine dispensing mechanism places the final wraps of twine so that at least the last of these final wraps enters the groove so that when this wrap is severed from the supply roll of twine the loose end section enters the groove and is frictionally retained there.
A more specific object of the invention is to provide a grooving and pressing device including a tool defined in part by at least one rotating element having fingers or teeth arranged about its circumference and projecting radially from its axis of rotation, the tool being located for constant engagement with and rotated by the circumference of a rotating bale being formed in the baling chamber, the rotating element acting to form a groove in the circumference of the bale at a location where the twine dispensing apparatus is designed to stop for applying several wraps of twine at the end of the tying cycle.
Still another object of the invention is to provide a grooving and pressing device, as set forth in one or more of the immediately preceding objects, which may be adjusted to various positions so that the rotatable grooving and pressing tool is in proper groove-forming relationship to a bale being formed, such adjustment in some cases being made to accommodate for different crops or crop conditions.
Yet another object of the invention is to provide a grooving and pressing device which includes twine guides for orienting the final wrap(s) of twine in alignment with the groove(s) formed in the circumference of the bale being wrapped.
These and other objects will become apparent from a reading of the ensuing description together with the appended drawings.
REFERENCES:
patent: 4619106 (1986-10-01), van der Lely
patent: 5894790 (1999-04-01), Viaud
patent: 5941166 (1999-08-01), Geiser
patent: 5950530 (1999-09-01), Clauss et al.
patent: 41 32 664 A1 (1993-04-01), None
U. S. Patent Application Serial No. 09/014,237 filed Jan. 27, 1998.
Carteret Frédéric
Georget Claude
Deere & Company
Gerrity Stephen F.
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