Needle bar coupling in an embroidering machine
US4289086A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1980 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Sep 19, 2000 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B55/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A needle bar coupling in an embroidering machine which has a plurality of needle bars driven by separate cranks operated by a drive shaft, comprises a crank which is connected to the needle bar and to the drive shaft to move the needle bar upon rotation of the shaft. For this purpose a coupling or collar is engaged on the shaft and it carries the crank. A pawl is pivoted on the crank and it includes a tooth portion which engages in a groove of the coupling so that the coupling drives the crank when the shaft is rotated. In order to disengage the crank and the needle bar drive a contact member is provided adjacent the pawl which is shifted to engage the pawl and dislodge the tooth of the pawl from the coupling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.