# US 2014/0196615 A1 · Square Baler With Improved Airflow Past The Knotters

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- Number: US 2014/0196615 A1
- Document ID: US20140196615A1
- Status: Published application
- Kind: A1
- Application number: 14/118,766
- Filed: 2012-05-15
- Published: 2014-07-17
- Earliest claimed: 2011-05-19
- Assignees: CNH Belgium
- Applicants: Cnh Belgium N.V.
- Inventors: Stefan De Rycke; Frederik Demon
- Web page: https://patentgrep.com/patent/US20140196615A1

## CPC

- A01B 71/08: Means for protecting against dust or the like, or for cleaning agricultural implements (discs for ploughs A01B15/16; lifting or cleaning apparatus for harrows A01B19/10; discs for harrows A01B23/06; screening of rotary driven tilling tools A01B33/12)
- A01F 15/14: Tying devices specially adapted for baling presses
- A01F 15/145: {Twine knotters}
- A01B: SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL (making or covering furrows or holes for sowing, planting or manuring A01C5/00; mowers convertible to soil working apparatus or capable of soil working A01D42/04; mowers combined with soil working implements A01D43/12; soil working for engineering purposes E01, E02, E21)
- A01F: PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE (devices for topping or skinning onions or flower bulbs A23N15/08)

## Abstract

At least part of the side of the crossbeam facing the knotter is inclined at an angle of more than ninety degrees to the upper wall of the baling chamber in order to permit a smooth flow of air from the fan past the knotter.

## Claims

### Claim 1

A square baler comprising
baling chamber with four side walls, a support frame surrounding the walls of the baling chamber, at least one knotter mounted on the outer side of the upper wall of the baling chamber adjacent a crossbeam of the support frame, and a fan disposed on the opposite side of the knotter from the crossbeam to blow away crop material from the vicinity of the knotter,
at least part of the side of the crossbeam facing the knotter is inclined at an angle of more than ninety degrees to the upper wall of the baling chamber in order to permit a smooth flow of air from the fan past the knotter.

### Claim 2 (depends on 1)

A square baler as claimed in claim 1, wherein the crossbeam is shaped to provide an additional air flow passage between the crossbeam and the upper wall of the baling chamber.

### Claim 3 (depends on 1)

A square baler as claimed in claim 1, wherein a casing is provided to support the fan and to encase the knotter so to guide the air flow from the fan over the knotter.

### Claim 4 (depends on 3)

A square baler as claimed in claim 3, wherein the casing comprises two hinged doors that may be opened to provide access to the knotters.

### Claim 5 (depends on 4)

A square baler as claimed in claim 4, wherein at least one fan for blowing air over the knotters is mounted on one of the doors.