US 11,653,770 B2
Pocket spring core and method for producing the same
Sabine Grothaus, Bad Essen (DE)
Assigned to AGRO Holding GmbH, Bad Essen (DE)
Appl. No. 16/636,979
Filed by AGRO Holding GmbH, Bad Essen (DE)
PCT Filed Jul. 25, 2018, PCT No. PCT/EP2018/070087
§ 371(c)(1), (2) Date Feb. 6, 2020,
PCT Pub. No. WO2019/029988, PCT Pub. Date Feb. 14, 2019.
Claims priority of application No. 10 2017 117 833.3 (DE), filed on Aug. 7, 2017.
Prior Publication US 2020/0367662 A1, Nov. 26, 2020
Int. Cl. A47C 27/06 (2006.01); A47C 27/07 (2006.01); B68G 9/00 (2006.01); B68G 7/00 (2006.01)
CPC A47C 27/064 (2013.01) [A47C 27/07 (2013.01); B68G 7/00 (2013.01); B68G 9/00 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A pocket spring core, having a plurality of springs (4, 5), of which a plurality thereof arranged one behind the other in a row and each lying in a flexible pocket formed of textile material form an individual bank of springs (1) and a plurality of adjoining banks of springs (1) which jointly form a lying surface are connected to one another, wherein the springs (4, 5) of at least one region of the lying surface are different in their spring behavior with respect to the springs (4, 5) of adjacent regions wherein:
at least some of the individual banks of springs (1) consist of partial banks of springs (2, 3) with different spring behavior,
the pocketed springs (4, 5) of the respective partial banks of springs (2, 3) have the same spring behavior,
the adjoining banks of springs (1) comprise adjacent partial banks of springs (2, 3),
at least some of the adjacent partial banks of springs (2, 3) of adjoining banks of springs (1) are of different lengths,
the adjacent partial banks of springs (2, 3) of adjoining banks of springs (1) that have a the same spring behavior are directly connected to one another by gluing or welding, and
the partial banks of springs having different spring behavior within an individual bank of springs are not directly connected to each other, and
wherein a further partial bank of springs (2, 3) of a further bank of springs (1) is arranged between two partial banks of springs (2, 3) of two of the banks of springs (1), wherein the further partial bank of springs (2,3) has a length that is different than a length of the partial banks of springs (2, 3) adjacent on both sides of the further partial bank of springs, so that at least one individual spring (4,5) of the further partial bank of springs (2,3) is adjacent springs (4,5) of a different spring behavior in the adjacent partial banks of springs and the at least one individual spring is directly connected to the springs of a different spring behavior in the adjacent partial banks of springs (2, 3).