EP 2037031 B1 20100630 - Device for reducing vibrations of sewing machines
Title (en)
Device for reducing vibrations of sewing machines
Title (de)
Vorrichtung zur Reduktion von Nähmaschinenvibrationen
Title (fr)
Dispositif pour la diminution des vibrations de machines à coudre
Publication
Application
Priority
CZ 2007642 A 20070914
Abstract (en)
[origin: EP2037031A1] The invention relates to the device for reducing vibrations of sewing machines induced by dynamic forces of the crank mechanism of needle bar (16) and the thread feeder (14) mechanism. At the same time the crank mechanism of needle bar (16) is coupled with the balancing eccentric mechanism (19), whose exit member (193) has a lift several times lower than the lift of needle bar (16), and its weight is several times higher than the weight of moving parts of the crank mechanism of the needle bar (16) and of the thread feeder (14) mechanism. The vertical component of speed vector of exit member (193) of the balancing eccentric mechanism (19) has an opposite sense with respect to the speed vector of needle bar (16).
IPC 8 full level
D05B 69/32 (2006.01)
CPC (source: EP)
D05B 69/32 (2013.01)
Designated contracting state (EPC)
DE IT PL RO TR
DOCDB simple family (publication)
EP 2037031 A1 20090318; EP 2037031 B1 20100630; CZ 2007642 A3 20090325; CZ 301075 B6 20091029; DE 602008001640 D1 20100812
DOCDB simple family (application)
EP 08466025 A 20080912; CZ 2007642 A 20070914; DE 602008001640 T 20080912