Large support of sewing machine

Large support of sewing machine

CN
  • CN 201,713,671 U
  • Filed: 01/26/2010
  • Issued: 01/19/2011
  • Est. Priority Date: 01/26/2010
  • Status: Active Grant
First Claim
Patent Images

1. big support of Sewing machines comprises base and is arranged on some bearings on the base, it is characterized in that:

  • on the base of being made by aluminium alloy compression casting some bearing installing holes are arranged;

    The bearing mounting hole site has the annular chamber that is connected with the bearing installing hole in lower open end, its radial outside of base lower surface;

    The bearing mounting hole site on the upper open end of base upper end, the cylindrical shell that communicates with the bearing installing hole arranged;

    Bearing and the base injection moulding of adopting the injection moulding mode to make link into an integrated entity, and rest base covers annular chamber, and bearing is positioned at the position parcel cylindrical shell on the base upper end, and the self tapping hole is arranged on the bearing.

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