Hook drive train for a sewing machine
US4297958A · kind A · utility
2Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1979 |
| Grant date | Nov 3, 1981 |
| Priority date | — |
| Expiry date | Oct 31, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19628
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An input gear and a hook driving gear in mesh with the input gear in the gear train for the hook of a sewing machine are rendered self-adjusting by having the input gear drive the hook driving gear through a key which is movable in one direction on an input shaft and with respect to which the input gear is movable in a direction perpendicular to said one direction, and by having the hook driving gear drive the hook through shaft affixed collar permitting movement of the hook driving gear transversely relative to a bushing upon which such gear is rotatably mounted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.