Multi-needle zipper tape stitching mechanism, chain and zipper tape fastening structure
US6286446A · kind A · utility
Inventor
Key dates
| Filing date | May 24, 2000 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | May 24, 2020 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B73/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A multi-needle zipper tape stitching mechanism includes a bottom needle plate having two parallel guide grooves for the passing of two chains (rows of teeth, a guide plate with two needle holes mounted on the bottom needle plate, a guide bar for guiding two zipper tapes over the chains being delivered through the bottom needle plate, an upper needle plate covered on the bottom needle plate and defining with the bottom needle plate two zipper tape passage ways for the passing of the zipper tapes and the chains, and two stitching needles reciprocated through respective needle holes on the upper needle plate and the needle holes on the guide plate to fasten the chains to the zipper tapes with three lines of stitches respectively, the stitching needles each having three needle rods arranged in parallel and spaced from one another at a different pitch, the needle rods each having a point and an eye on the point for the insertion of a respective thread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.