Title:
SEWING MACHINE HAVING ZERO POSITION
Document Type and Number:
WIPO Patent Application WO/2022/160890
Kind Code:
A1
Abstract:
Disclosed is a sewing machine having a zero position. The sewing machine comprises an electric drive motor, a cam and a stitch-length adjusting mechanism. The stitch-length adjusting mechanism comprises a rotary combination wheel and a swing base; the rotary combination wheel and the swing base are connected; the cam and a first output shaft of the electric drive motor are coaxially connected; the cam is provided with a zero positioning lever; the rotary combination wheel is provided with a positioning chute fitting the zero positioning lever; the positioning chute is an arc groove; and the radius of the center line of the positioning chute is equal to the rotation radius of an axis of the zero positioning lever that rotates around the first output shaft. By means of the sewing machine having the zero position, accurate control over a zero position can be realized.
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Inventors:
LI ZHIBIN (CN)
LIN GAOHONG (CN)
WU WENJUN (CN)
LIN GAOHONG (CN)
WU WENJUN (CN)
Application Number:
PCT/CN2021/132054
Publication Date:
August 04, 2022
Filing Date:
November 22, 2021
Export Citation:
Assignee:
QIXING INTELLIGENCE TECH CO LTD (CN)
International Classes:
D05B27/22; D05B69/20
Foreign References:
| CN214572596U | 2021-11-02 | |||
| CN112779686A | 2021-05-11 | |||
| CN111501214A | 2020-08-07 | |||
| CN112195577A | 2021-01-08 | |||
| CN111962223A | 2020-11-20 | |||
| CN112080864A | 2020-12-15 | |||
| JP2010068837A | 2010-04-02 |
Attorney, Agent or Firm:
HANGZHOU HANGCHENG PATENT ATTORNEY OFFICE CO., LTD. (CN)
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