Mower cutting chamber

Details Mower cutting chamber Mower cutting chamber

2001-08-02

2004-01-27

Kovács, Árpád F (Department: 3671)

Harvesters

Cutting

Housing or guard

C056S013600, C056S017500

Reexamination Certificate

active

06681553

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates generally to mower decks and more particularly to the cutting chamber surrounding the mower blade.
BACKGROUND OF THE INVENTION
Mower decks utilized in cutting vegetation are frequently used in conditions that result in plugging and/or clogging of the cutting chamber and/or the discharge opening of the deck. Conditions which contribute to such clogging include wet, heavy and/or long grass or vegetation. To assist in lifting the vegetation to cut it in these conditions, the blades are enclosed within depending cylindrical chambers comprised of skirts or rings. These chambers contain the air stream generated by the rotating blade and assist in lifting blades of growing vegetation to cut it at the proper height.
While the chambers improve the cutting of material under these conditions, clogging can still occur as the material is moved to the discharge opening, which is typically at one side of the deck. When a deck is equipped with a plurality of blades and the cut materials move across the deck to a side discharge opening, plugging can become particularly troublesome.
One attempt to reduce such plugging provides for a discharge opening for each cutting blade with the opening being provided at the rear of the deck. While this design improves the discharge of material, the cutting chamber skirts surrounding the blades and the limited discharge opening still contribute to plugging.
Accordingly, it would be desirable to provide a cutting deck designed to operate in wet, heavy and/or long vegetation conditions without incurring significant plugging and/or clogging.
Further, it would be desirable to provide a cutting chamber that can retain the air stream generated by the blade in order to lift the blades and/or stalks of wet, heavy and/or long vegetation prior to it being cut.
It would further be desirable to provide a cutting chamber and deck that permit the cut material to be effectively discharged.
SUMMARY OF THE INVENTION
Towards these ends, there is provided a deck that includes a cutting chamber for each blade that serves to maintain the air stream necessary to lift wet, heavy and/or long blades and/or stalks of vegetation.
There is further provided a substantial opening at the rear of the deck that serves as a discharge opening for material cut by the blade.
To allow the cut material within the chamber to exit easily, the vertical dimension of the rear portion of the chamber adjacent to the discharge opening of the deck is less than that of the forward portion of the chamber.
With the improved deck and chamber design, a mower capable of cutting and discharging wet, heavy and/or long vegetation is provided.


REFERENCES:
patent: 4189903 (1980-02-01), Jackson et al.
patent: 4502271 (1985-03-01), Hansen et al.
patent: 4890446 (1990-01-01), Israel
patent: 5035108 (1991-07-01), Meyer et al.
patent: 5191756 (1993-03-01), Kuhn
patent: 5267429 (1993-12-01), Kettler et al.
patent: 5305589 (1994-04-01), Rodriguez et al.
patent: 5465564 (1995-11-01), Koehn et al.
patent: 5609011 (1997-03-01), Kuhn et al.
patent: 5765346 (1998-06-01), Benter et al.
patent: 5791132 (1998-08-01), Wiedenmann
patent: 5845475 (1998-12-01), Busboom et al.
patent: 6052980 (2000-04-01), Friesen
patent: 6189307 (2001-02-01), Buss et al.
patent: 6192666 (2001-02-01), Sugden et al.
patent: 298 16 120 (1999-01-01), None
patent: WO 96/20584 (1996-07-01), None

Affiliated with

Also associated with

Rating

Mower cutting chamber does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3242231