EP 0838283 A3 20010103 - Spring cushion
Title (en)
Spring cushion
Title (de)
Federkissen
Title (fr)
Coussin à ressorts
Publication
Application
Priority
DE 19644175 A 19961024
Abstract (en)
[origin: EP0838283A2] A novel spring cushion is made of compacted, knitted fabric. The basic material (24) is knitted with a second, differing material (28) modifying its properties. This is a localised modification or extends overall. Preferably, the basic material comprises individual rows, the modifying material being knitted with it. The rows may alternate between basic and modifying material. The latter may have various desirable physical properties. It for example, damps vibrations, or has good electrical conductivity. The basic material may be of, or includes, steel wire. A modifying material is e.g. polyamide fibre, polytetrafluoroethylene fibre or carbon fibre.
IPC 1-7
IPC 8 full level
B21F 27/02 (2006.01); B21F 27/16 (2006.01)
CPC (source: EP)
B21F 27/02 (2013.01); B21F 27/16 (2013.01)
Citation (search report)
- [X] US 5149068 A 19920922 - BRANDENER LOUIS [FR]
- [A] US 4278717 A 19810714 - AOYAMA TOSHIHO
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0838283 A2 19980429; EP 0838283 A3 20010103; DE 19644175 A1 19980430
DOCDB simple family (application)
EP 97116010 A 19970915; DE 19644175 A 19961024