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Patent Searching and Data


Title:
AUTOMATIC REAR DRAGGING WHEEL LIFTING STRUCTURE ON SEWING MACHINE
Document Type and Number:
WIPO Patent Application WO/2021/052081
Kind Code:
A1
Abstract:
An automatic rear dragging wheel lifting structure on a sewing machine, relating to the technical field of garment manufacturing devices. The technical problem that an existing rear dragging wheel lifting driving structure is inconvenient to mount and the like are solved. The sewing machine comprises a machine housing (1), a dragging wheel shaft (2) vertically provided on the machine housing (1) and capable of moving up and down, and a rear dragging wheel (3) fixedly provided at a lower end of the dragging wheel shaft (2); the automatic rear dragging wheel lifting structure comprises a lifting block (4) fixedly provided on the dragging wheel shaft (2) and a driving member (5) fixedly provided on an outer side surface of the machine housing (1); a lever (6) capable of swinging and a crank (7) capable of swinging are respectively hinged to the outer side surface of the machine housing (1), one end of the lever (6) is connected to one end of the crank (7) by means of a connecting rod (8), the other end of the lever (6) is connected to an output shaft of the driving member (5), the other end of the crank (7) is connected to the lifting block (4), and the crank (7) swings to drive the lifting block (4) to move up and down. According to the present automatic rear dragging wheel lifting structure, the driving member (5) is provided on the outer side of the machine housing (1), mounting space and moving space are large, the driving member (5) is convenient to mount, detach and maintain, and interference and collision with other parts are avoided.

Inventors:
HU WEIWEI (CN)
MEI XIAOJING (CN)
MEI HONG (CN)
Application Number:
PCT/CN2020/109542
Publication Date:
March 25, 2021
Filing Date:
August 17, 2020
Export Citation:
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Assignee:
ZHEJIANG HOVER TECH SEWING MACHINE CO LTD (CN)
International Classes:
D05B27/18; D05B27/10; D05B29/02; D05B69/02; D05B69/10
Foreign References:
CN110004602A2019-07-12
CN110004602A2019-07-12
CN204174395U2015-02-25
CN103696151A2014-04-02
CN103668811A2014-03-26
CN208486043U2019-02-12
CN106637725A2017-05-10
CN107237055A2017-10-10
JPH09158016A1997-06-17
Attorney, Agent or Firm:
LANTIAN INTELLECTUAL PROPERTY AGENCY (CN)
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