Feeding mechanism in a sewing machine
US4512273A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1983 |
| Grant date | Apr 23, 1985 |
| Priority date | — |
| Expiry date | Jun 24, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05D2207/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A feeding module in the base on an electronic mechanical sewing machine is driven by an input shaft having two cam surfaces, one of which is arranged to drive a guide element in an oscillating movement. A block journalled on a shaft secured to a slide is displaceable in the guide by a mechanical or computer controlled electrical setting device. The slide is journalled in the feeder and displaceable perpendicularly to the working surface of the feeder. Upon a displacement of the slide the block will move into a corresponding position in the guide thereby effecting an adjustment of the feeding. The other cam surface is arranged to act upon a link connected to the transferring device to the feeder and is coordinated with the cam surfaces to guide the feeder in rectangular movements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.