EP 2312033 B1 20160824 - Sewing machine
Title (en)
Sewing machine
Title (de)
Nähmaschine
Title (fr)
Machine à coudre
Publication
Application
Priority
- JP 2009236493 A 20091013
- JP 2009236454 A 20091013
Abstract (en)
[origin: EP2312033A2] The invention relates to a sewing machine (10). The sewing machine (10) includes a main shaft which is rotated by a motor (1) to move a sewing needle, a position detecting means (14, 15) for detecting a rotation angle of the main shaft as a main shaft angle, a thread cutting mechanism (30) having a movable knife (31), a thread cutting cam (51) having a cam groove (51a) formed along a circumferential direction and rotating in synchronization with the rotation of the main shaft, a cam follower (52) configured to engage with the cam groove (51a) to move the movable knife (31) in accordance with the cam groove (51a), a thread cutting actuator (56) which switches the cam follower (52) between an engaging position and a disengaging position with respect to the thread cutting cam (51), and a control means for controlling the thread cutting actuator (56) and the motor (1). The control means includes an operation timing determining means for determining an operation start timing of the thread cutting actuator (56) or the motor (1), based on at least one of a rotation speed (v1, v2) of the motor (1) for a thread cutting operation and a main shaft stopped angle (¸1) at which the main shaft has stopped immediately before the thread cutting operation.
IPC 8 full level
D05B 19/12 (2006.01); D05B 65/00 (2006.01); D05B 69/10 (2006.01)
CPC (source: EP)
D05B 19/12 (2013.01); D05B 65/00 (2013.01); D05B 69/10 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2312033 A2 20110420; EP 2312033 A3 20150506; EP 2312033 B1 20160824; CN 102041647 A 20110504; CN 102041647 B 20140409; EP 3006615 A1 20160413; EP 3006615 B1 20170816
DOCDB simple family (application)
EP 10187338 A 20101012; CN 201010511076 A 20101013; EP 15193321 A 20101012