Automatic sewing machine
US4130073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1977 |
| Grant date | Dec 19, 1978 |
| Priority date | — |
| Expiry date | Aug 19, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/30084
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
In an automatic sewing machine of the type comprising a memory device storing a predetermined sewing pattern, a movable head including a cloth clamping member for clamping a piece of cloth to be sewed to a movable head, a pulse motor controlled by an electric signal read out from the memory device for moving the movable head at a predetermined speed thereby sewing the piece of cloth according to the sewing pattern, a working tool is mounted on the sewing machine, and a blank of a cloth clamping member is mounted on the movable head at a position to be worked by the working tool. At this time the pulse motor is driven at a speed lower than the predetermined speed, thereby working the blank to have a profile corresponding to the sewing pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.