US 12,239,231 B2
Spring module and spring cushion for furniture
Luhao Leng, Xiamen (CN)
Assigned to NEW-TEC INTEGRATION (XIAMEN) CO., LTD., Xiamen (CN)
Appl. No. 17/769,235
Filed by NEW-TEC INTEGRATION (XIAMEN) CO., LTD., Xiamen (CN)
PCT Filed Oct. 16, 2020, PCT No. PCT/CN2020/121418
§ 371(c)(1), (2) Date Apr. 14, 2022,
PCT Pub. No. WO2021/073598, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 201910990436.2 (CN), filed on Oct. 17, 2019; and application No. 202011104573.0 (CN), filed on Oct. 15, 2020.
Prior Publication US 2024/0122364 A1, Apr. 18, 2024
Int. Cl. A47C 27/07 (2006.01); A47C 23/00 (2006.01); A47C 23/043 (2006.01); A47C 23/057 (2006.01); A47C 27/045 (2006.01); A47C 27/05 (2006.01); A47C 27/06 (2006.01); A47C 27/15 (2006.01); A47C 27/20 (2006.01); F16F 1/08 (2006.01); F16F 1/12 (2006.01); F16F 3/04 (2006.01)
CPC A47C 27/07 (2013.01) [A47C 23/002 (2013.01); A47C 23/0438 (2013.01); A47C 23/057 (2013.01); A47C 27/053 (2013.01); A47C 27/056 (2013.01); A47C 27/063 (2013.01); A47C 27/064 (2013.01); A47C 27/065 (2013.01); A47C 27/15 (2013.01); A47C 27/20 (2013.01); A47C 27/0456 (2013.01); F16F 1/08 (2013.01); F16F 1/12 (2013.01); F16F 3/04 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A spring module for making a furniture spring cushion, comprising:
an entirely frustoconical spring; and
a spring bracket configured to accommodate the frustoconical spring therein, the spring bracket comprising:
a square base;
a first end of the frustoconical spring fixed to a spring fixing part on the square base;
an end cover arranged opposite to the base abutting a second end of the frustoconical spring, the second end having a smaller diameter than the first end, the frustoconical spring tapering inwardly uniformly from the square base to the end cover;
a plurality of spaced apart flexible straps, each flexible strap having ends fixedly connected to the base and the end cover respectively, and each flexible strap contacting an outer circumference of each coil of the frustoconical spring;
locking structures arranged on four sides of the base; and
each locking structure including a projection and a recess, to allow each locking structure to engage with a locking structure of an adjacent spring module, with the projection captive in the recess.