EP 0204426 B1 19900207 - UPPER THREAD GUIDE MECHANISM FOR SEWING MACHINES
Title (en)
UPPER THREAD GUIDE MECHANISM FOR SEWING MACHINES
Publication
Application
Priority
- JP 9737585 A 19850507
- JP 13835485 A 19850624
Abstract (en)
[origin: EP0204426A1] A slit (7) is formed which lies in a vertical plane and extends from an upper surface of a sewing machine frame (1) to a front surface. A tension device (5), a thread take-up spring (30), and upper and lower thread guides (23, 24) are disposed along the direction in which the slit (7) extends. A thread take-up lever (12) is installed so that it is reciprocated horizontally across the space between the pair of thread guides (23, 25). The placement of the thread in the tension device (5), thread take-up spring (30), and two thread guides (23,24) can be attained by simply pulling the upper thread vertically downward through the slit (7). When the thread take-up lever is reciprocated, during its forward stroke it arrests the portion of the thread positioned between the two thread guides (23, 24) and draws it in V form. During its return stroke, the thread take-up lever (12) releases the thread to allow the latter to loosen in loop form.
IPC 1-7
IPC 8 full level
D05B 47/00 (2006.01); D05B 49/02 (2006.01); D05B 51/00 (2006.01); D05B 53/00 (2006.01)
CPC (source: EP KR)
D05B 47/00 (2013.01 - KR); D05B 49/02 (2013.01 - EP); D05B 53/00 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0204426 A1 19861210; EP 0204426 B1 19900207; AT E50301 T1 19900215; AU 5644986 A 19861113; AU 576149 B2 19880811; BR 8602041 A 19870106; CS 269979 B2 19900514; CS 327286 A2 19880615; DE 3668925 D1 19900315; FI 85509 B 19920115; FI 85509 C 19920427; FI 861911 A0 19860507; FI 861911 A 19861108; KR 860009175 A 19861220; KR 890001859 B1 19890527; NZ 215921 A 19890127; SU 1613000 A3 19901207; TR 22755 A 19880614
DOCDB simple family (application)
EP 86303340 A 19860501; AT 86303340 T 19860501; AU 5644986 A 19860422; BR 8602041 A 19860506; CS 327286 A 19860506; DE 3668925 T 19860501; FI 861911 A 19860507; KR 860003538 A 19860507; NZ 21592186 A 19860422; SU 4027548 A 19860506; TR 2461186 A 19860506