Roll for round baler

Details Roll for round baler Roll for round baler

1999-01-15

2001-09-25

Hughes, S. Thomas (Department: 3726)

Roll or roller

With end ring or reinforcement

Reexamination Certificate

active

06293894

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention pertains to a roll for a round baler and more specifically relates to a roll such as that used for defining the boundary of the baling chamber of such a baler.
Conventional rolls for round balers include a central body defined by a steel tube that is usually profiled and extends over a length of 1.2 to 1.5 meters. In order to realize a rotatable support, the tube is carried either by a shaft extending axially through, or stub shafts extending from opposite ends of, the tube, with flanges defined by circular steel plates being mounted between the shaft or stub shafts and the tube. Examples of these structures are shown in U.S. Pat. No. 4,635,543 granted to Clostermeyer et al. on Jan. 13, 1987; U.S. Pat. No. 4,638,623 granted to Schaible et al. on Jan. 27, 1987; U.S. Pat. No. 5,195,402 granted to McMillen et al. on Mar. 23, 1993; and U.S. Pat. No. 5,193,450 granted to Anderson on Mar. 16, 1993.
The prior art designs have one or more of the drawbacks of being relatively costly and/or difficult to manufacture, of being difficult to maintain and of resulting in stress cracks forming at the welded joint between the flanges and the tubular central body.
SUMMARY OF THE INVENTION
According to the present invention, there is provided an improved roll for a round baler and more specifically, there is provided an improved structure for joining stub shafts to the opposite ends of a metal tube forming tubular central body of the roll.
An object of the invention is to provide a roll for a round baler including a stub shaft assembly which is relatively inexpensive to manufacture and is easy to maintain while resulting in strong, reliable connection between the stub shaft and the tubular central body. In a first embodiment of the invention, this object is achieved by forming the stub shaft integrally with a circular flange and welding this flange to one end of a tubular cylindrical extension which is inserted into the end of the tubular central body and held in place either by a shrink fit and/or by welding at a series of holes provided in the tube. In a second embodiment of the invention, the object is achieved by forming both the stub shaft and the tubular cylindrical extension integral with a respective circular flange, and bolting these flanges together, the extension being inserted into the end of the tube and held in place like the extension in the first embodiment.
These and other objects will become apparent from a reading of the ensuing description together with the appended drawings.


REFERENCES:
patent: 2152076 (1939-03-01), Menough
patent: 2513515 (1950-07-01), Powers
patent: 2988803 (1961-06-01), Mohn
patent: 3037756 (1962-06-01), Ornitz
patent: 4229950 (1980-10-01), Fessenden
patent: 4607420 (1986-08-01), Vomhoff
patent: 4635543 (1987-01-01), Clostermeyer et al.
patent: 4638623 (1987-01-01), Schaible et al.
patent: 5193450 (1993-03-01), Anderson
patent: 5195402 (1993-03-01), McMillen et al.
patent: 5279535 (1994-01-01), Mawes et al.
patent: 5411462 (1995-05-01), Link
patent: 5613931 (1997-03-01), Maty

Affiliated with

Also associated with

Rating

Roll for round baler does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Roll for round baler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Roll for round baler will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2540523