Title:
A SPRING SYSTEM AND METHOD FOR PRODUCTION OF SPRING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/009672
Kind Code:
A3
Abstract:
Invention is a spring unit (1) containing a spring system (10) used in bed, armchair and sofa like constructions and realizing different hardness and comfort levels in different areas of said constructions and consisting of at least a soft spring (10.1) forming soft comfort area of low hardness area of said spring unit (1), at least a medium hard spring (10.2) providing gradual transition between soft comfort areas of said spring unit (1) and hard comfort areas with a spring having number of convolution different from said soft spring (10.1) and of same wire diameter, at least a hard spring (10.3) providing hard comfort area of said spring unit (1) by means of a spring having number of convolution different from spring of soft spring (10.1) and medium hard spring (10.2) and of same wire diameter as said medium hard spring (10.2) and said soft spring (10.1).
Inventors:
AYKAŞ ABDURRAHIM (TR)
Application Number:
PCT/TR2019/050157
Publication Date:
February 20, 2020
Filing Date:
March 12, 2019
Export Citation:
Assignee:
ZEB METAL SANAYI IC VE DIS TICARET LTD SIRKETI (TR)
International Classes:
A47C27/06
Foreign References:
| US20030218285A1 | 2003-11-27 | |||
| EP2611335A1 | 2013-07-10 | |||
| US5868383A | 1999-02-09 | |||
| US5740574A | 1998-04-21 |
Other References:
See also references of EP 3817630A4
Attorney, Agent or Firm:
DESTEK PATENT, INC. (TR)
Download PDF: