A sewing structure of a hidden zipper, a face cover with a hidden zipper and a car seat

CN224335507UActive Publication Date: 2026-06-09继峰座椅(合肥)有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
继峰座椅(合肥)有限公司
Filing Date
2025-08-27
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing invisible zippers are prone to problems such as bursting stitches and large gaps between openings when applied to curved or sharp edges, which affect the aesthetics.

Method used

The structure employs a sewing construction of cut pieces, piping strips, and chain teeth. The piping strips consist of a core and a covering outer layer. The core is designed as a flexible component and is connected by stitching. The core covers the chain teeth, and the covering outer layer has protruding teeth to prevent material accumulation. Combined with a limiting groove, the core is restricted to ensure the chain teeth are effectively covered.

Benefits of technology

It effectively solves the problem of exposed teeth in invisible zippers on different designs, improves aesthetics, and ensures that the zipper teeth can be concealed on curved edges and facets, avoiding wrinkles and breakage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224335507U_ABST
    Figure CN224335507U_ABST
Patent Text Reader

Abstract

This utility model relates to the field of automotive seat technology, disclosing a sewing structure for an invisible zipper, a cover with an invisible zipper, and an automotive seat. The sewing structure for the invisible zipper includes: a cut piece, comprising a cut piece body and a folded edge formed by folding the edge of the cut piece body; a piping strip, disposed between the cut piece body and the folded edge, comprising a core and a covering outer layer, the covering outer layer enclosing the core, and the covering outer layer having multiple protruding teeth sequentially along its length, with a notch between adjacent protruding teeth; the core is located near the folded edge; and a chain tooth strip, disposed on the folded edge, comprising chain teeth, with the folded edge and core covering the chain teeth; the cut piece, piping strip, and chain tooth strip are sewn together. The advantages of this utility model are that it effectively solves the problem of exposed teeth in invisible zippers, improves aesthetics, and is applicable to scenarios with different styling requirements.
Need to check novelty before this filing date? Find Prior Art