Sewing machine with adjustable stepping height and related methods
US11946182B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 9, 2022 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Apr 28, 2042 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B55/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A kit for adding or replacing an automated upper walking foot stepping height adjustment to a sewing machine, the kit includes a mounting assembly including an actuator bracket, an actuator coupled to the actuator bracket, a drive assembly, and a needle drive assembly. The actuator includes an actuator shaft that extends and retracts. The drive assembly includes a drive shaft, a drive arm coupled to the drive shaft and the actuator shaft, and a guide coupled to the drive shaft. The needle drive assembly includes a variable drive crank coupled to the guide and configured to couple to a needle drive shaft of a sewing machine. Selectively extending and retracting the actuator shaft selectively adjusts a stepping height of an upper walking foot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.