Rotatable cylindrical needle plate with distinct needle holes
US5154590A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Oct 23, 2011 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B73/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A rotatably mounted needle plate (30) in the form of a cylindrical sleeve is provided for a sewing machine (1) with which seams can be produced as a result of a relative movement between the sewing machine (1) and a cloth holder (68). The needle plate (30) has at least one needle-plate attachment (37) and at least two needle holes (38, 38'), a longitudinal axis (39) of each needle hole (38, 38') being radial to an axis of rotation (40) of the needle plate (30). The needle-plate attachment (37) provides cloth resting surfaces (41) surrounding each needle hole (38, 38') which are at different distances from the axis of rotation (40). By rotating the needle plate (30) there is obtained an adjustment of the sewing level, as a result of which it is assured that the lower side of the cloth will dependably rest on the cloth resting surfaces (41) during the sewing even when the cloth has partially thick regions within the course of the seam. Since both round and slot-shaped needle holes (38, 38') are provided in the needle plate (30) and the cloth resting surfaces (41) of these needle holes (38, 38') are at equal distances from the axis of rotation (40), then different types of stitches (s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.