Process for determining the coordinate values for sewing patterns
US5307749A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1992 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Oct 27, 2012 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B19/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for determining coordinate values of touchdown sites of a needle for forming sewing patterns with an electronically controlled sewing machine, which is equipped with a feed dog performing only relatively small amounts of displacement and with a needle pivotable in one direction of displacement of the feed dog. The coordinate values for a straight seam section, the consecutive touchdown points of the needle, are determined when the maximum amount of feed of the feed dog in the X coordinate direction and/or the sum of the maximum amount of the lateral movement of the needle which is possible at a given needle position and the maximum amount of feed of the feed dog in the Y coordinate direction is exceeded. The seam section is subdivided by equidistant intermediate touchdown sites, the distances between which in the direction of movement of the needle are composed of a constant percentage of the lateral movement of the needle and of a constant feed percentage of the feed dog.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.