THREAD TRIMMER OF POST-BED SEWING MACHINE

(19)

(11)

EP 3 301 212 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	20.06.2018 Bulletin 2018/25

(43)	Date of publication A2:
	04.04.2018 Bulletin 2018/14

(21)	Application number: 17178235.2

(22)	Date of filing: 27.06.2017

(51)

International Patent Classification (IPC):

D05B 65/00^(2006.01)

D05B 65/02^(2006.01)

(84)	Designated Contracting States:
	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
	Designated Extension States:
	BA ME
	Designated Validation States:
	MA MD

(30)

Priority:

30.09.2016 TW 105131778

(71)	Applicant: Chee Siang Industrial Co., Ltd.
	New Taipei City 248 (TW)

(72)	Inventor:
	CHEN, Hsu Hui New Taipei City 248 (TW)

(74)	Representative: Cabinet Chaillot
	16/20, avenue de l'Agent Sarre B.P. 74 92703 Colombes Cedex 92703 Colombes Cedex (FR)

(54)	THREAD TRIMMER OF POST-BED SEWING MACHINE

(57) A thread trimmer (2) of post-bed sewing machine is assembled to a feed wheel support post (231) of the sewing machine and includes a cutter set (30), a transmission device (40) and a lower shaft (24). The cutter set (30) includes a fixed cutter (31) located behind a needle hole (271) formed on a top of the feed wheel support post (231) for a sewing thread to extend therethrough, and a movable cutter (32) movably assembled to the feed wheel support post (231) and driven by the transmission device (40) to swing about a swing axis (231e) in parallel with the lower shaft (24), such that the movable cutter (32) can swing from a thread-hooking position adjacent to the needle hole (271) to a thread-trimming position for cutting the sewing thread. With these arrangements, only a relatively short loose thread end will be left on the workpiece being sewed when the sewing thread is cut by the fixed and the movable cutter.

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