Title:
FLEXIBLY ADJUSTABLE FEEDING AND THREAD HOOKING MECHANISM AND SEWING MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/206003
Kind Code:
A1
Abstract:
The present invention provides a flexibly adjustable feeding and thread hooking mechanism and a sewing machine. The flexibly adjustable feeding and thread hooking mechanism comprises a feed dog rack, feed dogs, and a teeth rising and thread hooking module; the teeth rising and thread hooking module comprises a teeth rising and thread hooking driving source, a rotatable rotary hook, a teeth rising connection portion provided at one end of the feed dog rack, and a teeth rising and thread hooking transmission mechanism; the teeth rising and thread hooking driving source is connected to the rotary hook and the teeth rising connection portion of the feed dog rack by means of the teeth rising and thread hooking transmission mechanism; and the teeth rising and thread hooking driving source is independent of a driving source in the sewing machine for driving the operation of a needle. In the present application, a teeth rising function and a thread hooking function of the sewing machine are integrated into an independent function module; and the independent teeth rising and thread hooking driving source is used to drive thread hooking and teeth rising, such that the relative timing between the teeth rising and thread hooking driving source and the driving source in the sewing machine for driving the operation of the needle can be adjusted, thereby adjusting the matching timing between the rotary hook and the needle, and the matching timing between an up-and-down reciprocating motion of the feed dogs and the needle, and greatly improving the sewing adaptability of the sewing machine.
Inventors:
ZHENG JI (CN)
KE XIANGLIN (CN)
ZHU SHUWEI (CN)
KE XIANGLIN (CN)
ZHU SHUWEI (CN)
Application Number:
PCT/CN2021/135971
Publication Date:
October 06, 2022
Filing Date:
December 07, 2021
Export Citation:
Assignee:
JACK SEWING MACHINE CO LTD (CN)
International Classes:
D05B27/02; D05B27/24; D05B57/38; D05B69/02
Foreign References:
| CN214572593U | 2021-11-02 | |||
| CN214938342U | 2021-11-30 | |||
| CN1752321A | 2006-03-29 | |||
| CN103215756A | 2013-07-24 | |||
| CN208379163U | 2019-01-15 | |||
| CN102071543A | 2011-05-25 | |||
| JPS62197098A | 1987-08-31 | |||
| CN1417397A | 2003-05-14 | |||
| CN210177083U | 2020-03-24 | |||
| CN105155142A | 2015-12-16 | |||
| CN207435682U | 2018-06-01 | |||
| CN106544793A | 2017-03-29 |
Attorney, Agent or Firm:
HANGZHOU HANGCHENG PATENT ATTORNEY OFFICE CO., LTD. (CN)
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