Detachable sole plate
US4212256A · kind A · utility
6Cited by
13References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 1978 |
| Grant date | Jul 15, 1980 |
| Priority date | — |
| Expiry date | Nov 20, 1998 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B29/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A sewing machine presser foot is provided with a detachable sole plate connected to the spaced apart arms of a support member by means of a compressible pin assembly secured to the arms and projecting from the sides thereof. The sole plate is provided with inclined flanges on its upper surface and aligned openings beneath the flanges. When the sole plate is moved upwardly toward the support member the projecting ends of the pin assembly are engaged by the ramps and compressed toward each other to permit the projecting ends to engage in the openings in the sole plate upon release of the compressive force on said ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.