Sewing machine with a presser foot drivable in transverse direction by the needle bar
US4867084A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Jun 23, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B29/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a sewing machine with a needle bar executing transverse motions and with a pressing arrangement whose foot can be lowered onto the work piece laterally with regard to its central position when the needle bar executes lateral movements, the presser arrangement and its drive connection to the needle bar is executed so that a minimal moment of inertia is exerted on the needle bar when driving the pressure arrangement and so that the pressure foot always generates a load evenly spread over the pressed surface, independent of the width of its lateral movements. For this purpose the presser foot is movable in transverse direction relative to the other parts of the pressing arrangement and it is guided parallel to the work piece surface by a guiding arrangement. The transverse movement of the presser arrangement is taken from the transverse movement of the needle bar by a driving connection. The driving connection is formed by a driving linkage connected to the needle bar and by a catch connected to the presser foot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.