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Patent Searching and Data


Title:
CLOTH FEEDING MECHANISM OF SEWING MACHINE AND SEWING MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/147585
Kind Code:
A1
Abstract:
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.

Inventors:
ZHENG JI (CN)
ZHU SHUWEI (CN)
CHEN WENSHUANG (CN)
Application Number:
CN2020/070023
Publication Date:
July 23, 2020
Filing Date:
January 02, 2020
Export Citation:
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Assignee:
JACK SEWING MACHINE CO LTD (CN)
International Classes:
D05B27/00
Foreign References:
CN109505072A2019-03-22
CN108842311A2018-11-20
CN202039191U2011-11-16
CN107558014A2018-01-09
CN105908386A2016-08-31
JP2003326027A2003-11-18
JP2006181166A2006-07-13
CN106637707A2017-05-10
Attorney, Agent or Firm:
LANTIAN INTELLECTUAL PROPERTY AGENCY (CN)
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