IP Library Granted Patent US 12672611
Granted Patent B2
US 12672611 · App. 18/321,461 · Granted Jul 7, 2026

Round baler

Inventor: Josef Horstmann (Ibbenbüren, DE)
Assignee: Maschinenfabrik Bernard Krone GmbH & Co. KG
A01F15/106
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Quick Facts
Patent No.
US 12672611
App. No.
18/321,461
Granted
Jul 7, 2026
Kind
B2
Abstract

A round baler includes a feed channel leading to a pressing chamber, a transfer device with a transfer rotor driven about a transfer axis in a chamber feed direction to convey harvested material through the feed channel towards the pressing chamber, and a storage device with a storage space for temporarily receiving harvested material. So the round baler can continuously receive harvested material, the storage device comprises a storage space wall which delimits the storage space to the outside, and a drivable storage space conveyor for the revolving conveyance of harvested material within the storage space. The transfer rotor is configured to guide harvested material from the feed channel towards the storage space for intermediate storage while rotating in a storage space feed direction opposite to the chamber feed direction, and to convey harvested material delivered by the storage device through the feed channel towards the pressing chamber.

Claims (24)

1 . A round baler ( 1 ) comprising of:

a feed channel ( 6 ) leading to a pressing chamber ( 55 ), a transfer device ( 20 ) with a transfer rotor ( 21 ), which can be driven about a transfer axis (B) in a chamber feed direction (K), in order to convey harvested material through the feed channel ( 6 ) towards the pressing chamber ( 55 ) in a pressing mode; and

a storage device ( 30 ) with a storage space ( 32 ) for temporarily receiving harvested material, which storage space is connected to the feed channel ( 6 ) by means of at least one storage space opening ( 33 ), wherein the storage device ( 30 ) comprises a storage space wall ( 31 ) which delimits the storage space ( 32 ) to the outside, as well as a drivable storage space conveyor ( 34 ) for the revolving conveyance of harvested material within the storage space ( 32 ), wherein the transfer rotor ( 21 ) is configured, in a storage mode, to guide harvested material from the feed channel ( 6 ) towards the storage space ( 32 ) for intermediate storage while rotating in a storage space feed direction(S) opposite to the chamber feed direction (K), and, in the pressing mode, to convey harvested material delivered by the storage device ( 30 ) through the feed channel ( 6 ) towards the pressing chamber ( 55 );

wherein the transfer rotor ( 21 ) is rotatably mounted on a rotor arm ( 26 ) which is adjustable relative to a frame ( 2 ) of the round baler ( 1 ).

2 . The round baler ( 1 ) according to claim 1 , wherein the round baler is configured, in the pressing mode, to at least temporarily combine a harvested material intake flow (E A ) coming from an intake device ( 5 ) with a harvested material storage flow (E S ) coming from the storage device ( 30 ) to feed together a harvested material total flow (E G ) and to feed this total flow to the pressing chamber ( 55 ).

3 . The round baler ( 1 ) according to claim 1 , wherein the storage space conveyor ( 34 ) can be driven in rotation about a storage space axis (A) and comprises an inner part ( 35 ) of the storage space conveyor with a conveyor wall ( 36 ) delimiting the storage space inwards as well as storage space tines ( 38 ) projecting from the conveyor wall towards the storage space wall ( 31 ), wherein the storage space wall ( 31 ) is configured at least predominantly rotationally symmetrical to the storage space axis (A).

4 . The round baler ( 1 ) according to claim 1 , wherein the transfer rotor ( 21 ) comprises a plurality of transfer tines ( 24 ) extending radially outwards with respect to the transfer axis (B).

5 . The round baler ( 1 ) according to claim 1 , wherein the transfer rotor ( 21 ) engages in the storage space ( 32 ) through the at least one storage space opening ( 33 ) depending on the position of the rotor arm ( 26 ).

6 . The round baler ( 1 ) according to claim 1 , wherein the storage space tines ( 38 ) on a conveying side ( 38 . 1 ) comprise a backward pitch so that the edge of the storage space tines ( 38 ) recedes tangentially radially outwards, and the transfer tines ( 38 ) on a chamber feed side ( 24 . 2 ) arranged at the front in the chamber feed direction (K) comprise a backward pitch which is less than that of the storage space tines ( 38 ).

7 . The round baler ( 1 ) according to claim 1 , wherein the transfer tines ( 24 ) on a storage feed side ( 24 . 1 ) arranged at the front in the storage space feed direction(S) have a backward pitch which is greater than a pitch which the storage space tines ( 38 ) have on a rear side ( 38 . 2 ) opposite a conveying side ( 38 . 1 ).

8 . The round baler ( 1 ) according to claim 1 , further comprising a starter roller ( 51 ) arranged at the transition from the feed channel ( 6 ) to the pressing chamber ( 55 ), movable from an upper roller position to a lower roller position and to hold the starter roller ( 51 ), in pressing mode, in this position at least until the storage space ( 32 ) is emptied.

9 . The round baler ( 1 ) according to claim 1 , wherein the feed channel ( 6 ) includes a rotor bottom section ( 9 ) below the transfer rotor ( 21 ), wherein the round baler ( 1 ) is configured to adjust, at least a front portion ( 9 . 1 ) of the rotor bottom section ( 9 ) downwards with respect to the harvested material flow when the transfer rotor ( 21 ) is moved out of the storage space ( 32 ) and upwards when the transfer rotor ( 21 ) is moved into the storage space ( 32 ).

10 . The round baler ( 1 ) according to claim 9 , wherein the round baler ( 1 ) is configured, in the pressing mode, to adjust at least one rear area ( 9 . 2 ) of the rotor bottom section ( 9 ) downward with respect to the material flow for emptying the storage space ( 32 ) and to adjust it upward after emptying the storage space ( 32 ).

11 . The round baler ( 1 ) according to claim 1 , wherein the transfer rotor ( 21 ) includes a plurality of transfer tine rings ( 23 a - 23 c ) axially spaced apart from each other with respect to the transfer axis (B) by first intermediate spaces ( 25 ) and the storage space conveyor ( 34 ) comprises a plurality of storage space tine rings ( 37 a - 37 d ) axially spaced apart with respect to the storage space axis (A) by second intermediate spaces ( 41 ), wherein, when the transfer rotor ( 21 ) engages the storage space ( 32 ), the storage space tine rings ( 37 a - 37 d ) engage in the first intermediate spaces ( 25 ) and the transfer tine rings ( 23 a - 23 c ) engage in the second intermediate spaces ( 41 ).

12 . The round baler ( 1 ) according to claim 1 , further comprising a conveying speed of the transfer rotor ( 21 ) in pressing mode corresponds to at least one conveying speed of the storage space conveyor ( 34 ).

13 . The round baler ( 1 ) according to claim 1 , further comprising a conveying speed of the transfer rotor ( 21 ) in storage mode is lower than a conveying speed of the storage space conveyor ( 34 ).

14 . A storage arrangement ( 10 ) for a round baler ( 1 ), comprising:

a feed channel ( 6 ) leading to a pressing chamber ( 55 ), wherein the storage arrangement ( 10 ) comprises a transfer device ( 20 ) with a transfer rotor ( 21 ) which can be driven about a transfer axis (B) in a chamber feed direction (K), in order to convey, in a pressing mode, harvested material through the feed channel ( 6 ) towards the pressing chamber ( 55 ); and

a storage device ( 30 ) with a storage space ( 32 ) for temporarily receiving harvested material, which storage space comprises at least one storage space opening ( 33 ) for connection to the feed channel ( 6 ), wherein the storage device ( 30 ) comprises a storage space wall ( 31 ) which delimits the storage space ( 32 ) to the outside, as well as a drivable storage space conveyor ( 34 ) for the revolving conveyance of harvested material within the storage space ( 32 ), wherein the transfer rotor ( 21 ) is configured, in a storage mode, to guide harvested material from the feed channel ( 6 ) towards the storage space ( 32 ) for intermediate storage while rotating in a storage space feed direction(S) opposite to the chamber feed direction (K), and, in the pressing mode, to convey harvested material delivered by the storage device ( 30 ) through the feed channel ( 6 ) towards the pressing chamber ( 55 );

wherein the transfer rotor ( 21 ) is rotatably mounted on a rotor arm ( 26 ) which is adjustable relative to a frame ( 2 ) of the round baler ( 1 ).

15 . A round baler ( 1 ) comprising of:

a feed channel ( 6 ) leading to a pressing chamber ( 55 ), a transfer device ( 20 ) with a transfer rotor ( 21 ), which can be driven about a transfer axis (B) in a chamber feed direction (K), in order to convey harvested material through the feed channel ( 6 ) towards the pressing chamber ( 55 ) in a pressing mode; and

a storage device ( 30 ) with a storage space ( 32 ) for temporarily receiving harvested material, which storage space is connected to the feed channel ( 6 ) by means of at least one storage space opening ( 33 ), wherein the storage device ( 30 ) comprises a storage space wall ( 31 ) which delimits the storage space ( 32 ) to the outside, as well as a drivable storage space conveyor ( 34 ) for the revolving conveyance of harvested material within the storage space ( 32 ), wherein the transfer rotor ( 21 ) is configured, in a storage mode, to guide harvested material from the feed channel ( 6 ) towards the storage space ( 32 ) for intermediate storage while rotating in a storage space feed direction(S) opposite to the chamber feed direction (K), and, in the pressing mode, to convey harvested material delivered by the storage device ( 30 ) through the feed channel ( 6 ) towards the pressing chamber ( 55 );

wherein the transfer rotor ( 21 ) includes a plurality of transfer tine rings ( 23 a - 23 c ) axially spaced apart from each other with respect to the transfer axis (B) by first intermediate spaces ( 25 ) and the storage space conveyor ( 34 ) comprises a plurality of storage space tine rings ( 37 a - 37 d ) axially spaced apart with respect to the storage space axis (A) by second intermediate spaces ( 41 ), wherein, when the transfer rotor ( 21 ) engages the storage space ( 32 ), the storage space tine rings ( 37 a - 37 d ) engage in the first intermediate spaces ( 25 ) and the transfer tine rings ( 23 a - 23 c ) engage in the second intermediate spaces ( 41 ).