US 11,717,092 B2
Spring core
Anders Bergner, Halmstad (SE); and Zhiming Tan, Guangzhou (CN)
Assigned to IKEA SUPPLY AG, Pratteln (CH)
Filed by IKEA Supply AG, Pratteln (CH)
Filed on Apr. 6, 2022, as Appl. No. 17/714,809.
Application 17/714,809 is a continuation of application No. 16/761,607, granted, now 11,324,333, previously published as PCT/EP2018/080460, filed on Nov. 7, 2018.
Claims priority of application No. 201711097375.4 (CN), filed on Nov. 9, 2017; and application No. 1751600-6 (SE), filed on Dec. 21, 2017.
Prior Publication US 2022/0225784 A1, Jul. 21, 2022
Int. Cl. A47C 23/043 (2006.01); F16F 3/04 (2006.01)
CPC A47C 23/043 (2013.01) [F16F 3/04 (2013.01); F16F 2226/04 (2013.01); F16F 2236/045 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A spring core, comprising springs placed inside pockets, which pockets are placed in a number of rows, which rows of pockets are placed side by side, wherein the spring core is held in a compressed state by means of at least one cord passing through the pockets in a form of a number of interconnected loops, wherein to form an interconnected loop, the at least one cord goes up through an opening in one of the pockets, goes through a previously formed interconnected loop and back down through the same opening.