CLOTH FEEDING MECHANISM OF SEWING MACHINE AND SEWING MACHINE

WIPO Patent Application WO/2020/147585

A1

A sewing machine, comprising: a rotating main shaft (100), a material feeding eccentric wheel (200) sleeved on the main shaft (100), the material feeding eccentric wheel (200) comprising a cloth feeding eccentric part (201) engaged with a cloth feeding connecting rod (300), and a tooth lifting eccentric part (202) engaged with a tooth lifting connecting rod (400); a clutch mechanism connected to the material feeding eccentric wheel (200) and the main shaft (100), for locking the material feeding eccentric wheel (200) to the main shaft (100); adjusting the clutch mechanism can make the material feeding eccentric wheel (200) and the main shaft (100) separate from one another; when separated, the positioning angle between the material feeding eccentric wheel (200) and the main shaft (100) is changed by means of rotating the main shaft (100), thereby changing the rotation timing of the cloth feeding connecting rod (300) and the tooth lifting connecting rod (400) relative to the main shaft (100). The positioning angle between the main shaft (100) and the material feeding eccentric wheel (200) can be adjusted, different positioning angles corresponding to different timings of material feeding actions, being suitable for cloth of different thicknesses.

ZHENG JI (CN)
ZHU SHUWEI (CN)
CHEN WENSHUANG (CN)

PCT/CN2020/070023

July 23, 2020

January 02, 2020

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JACK SEWING MACHINE CO LTD (CN)

D05B27/00

CN109505072A	2019-03-22
CN108842311A	2018-11-20
CN202039191U	2011-11-16
CN107558014A	2018-01-09
CN105908386A	2016-08-31
JP2003326027A	2003-11-18
JP2006181166A	2006-07-13
CN106637707A	2017-05-10

LANTIAN INTELLECTUAL PROPERTY AGENCY (CN)

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