Sewing machine

Sewing machine

CN
  • CN 1,676,718 B
  • Filed: 03/29/2005
  • Issued: 09/01/2010
  • Est. Priority Date: 03/29/2004
  • Status: Active Grant
First Claim
Patent Images

1. Sewing machines has by the compress cam and makes cloth presser that the compress pin moves up and down and make the line device of dialling that the thread end of reaching the standard grade is dialled line carry out and dial the thread-laying mechanism that line moves by dialling line cam, it is characterized in that, comprising:

  • Common 1 stepping motor that described compress cam and group line cam are driven;

    AndBy a plurality of gears that drive by described stepping motor to described compress cam with dial the gear driven mechanism that line cam drives,Described gear driven mechanism, have on the output shaft that is fixed in stepping motor driven wheel and to described compress cam with dial the driven gear that line cam drives, the diameter of described driven wheel is less than the diameter of described driven gear,Described stepping motor and described gear driven mechanism are disposed at the outside portion of upright column sections of establishing on the pedestal part of described Sewing machines,Described compress cam and group line cam are arranged on the shared camshaft, and described driven gear and this camshaft are affixed, and described camshaft is disposed at the downside of the output shaft of described stepping motor,Carry out the pressure arm of wobble drive accordingly and dial the line arm with the cam face of described compress cam, support by shared pivot fulcrum with the cam face of described group of line cam carries out wobble drive accordingly,Be provided with the phase-detection member of the phase place that is used to detect output shaft in a square end portion of the output shaft of described stepping motor, be provided with described gear driven mechanism in the opposing party end of the output shaft of described stepping motor.

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