A presser foot bottom plate, a composite presser foot and a sewing machine

By setting a composite structure of a detachable embedded groove and an embedded filler plate on the sewing machine presser foot base plate, the problems of high cost and short life of presser foot base plates are solved, achieving a balance between performance and life and cost reduction.

CN224548698UActive Publication Date: 2026-07-24JACK SEWING MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JACK SEWING MASCH CO LTD
Filing Date
2025-07-02
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

While existing sewing machine presser foot plates balance performance and lifespan, they have high production costs and the problem of the entire plate becoming unusable after the filling layer wears down.

Method used

It adopts a detachable composite structure, with a fixed groove on the pressure foot base plate and a detachable embedded filler plate. The lower surface of the embedded filler plate is 0-0.2mm away from the working surface of the base plate, realizing multi-material contact and reducing costs by replacing the embedded filler plate.

Benefits of technology

This invention achieves a composite presser foot that combines the performance of a plastic presser foot with the lifespan of a metal presser foot, and reduces production costs by replacing the embedded filler plate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sewing machine technical field's a presser foot bottom plate, compound presser and sewing machine, including presser foot bottom plate including presser foot base plate, and the working surface of presser foot base plate is opened and has the embedded slide groove, and the embedded slide groove one end extends along the length direction of presser foot base plate and penetrates presser foot base plate, detachably fixedly connected with the embedded filling board of material unlike presser foot base plate in embedded slide groove, and the lower surface of embedded filling board is located below the working surface of presser foot base plate, and the distance between the lower surface of embedded filling board and the working surface of presser foot base plate is 0~0.2mm. The utility model not only makes compound presser can have the service performance of plastic presser and the service life of metal presser simultaneously, but also can realize the repeated use of presser foot bottom plate through replacing embedded filling board, and then reduces the production cost of compound presser.
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Citation Information

Patent Citations

  • CN221421364U