Puller apparatus
US5509366A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Apr 28, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05D2207/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A puller device of a sewing machine having a stitch-forming mechanism alternately engageable and disengageable with a garment for stitching the garment and a feed mechanism for feeding the garment through the stitch-forming mechanism. The puller device comprises a puller roller downstream of the feed mechanism for uniformly pulling the garment when the stitch-forming mechanism is disengaged from the garment. The puller device also comprises a feed rocker shaft, clampingly-attached to the feed mechanism, for driving the puller roller in synchronization with the stitch-forming mechanism, intermittently engaging the puller roller when the stitch-forming mechanism is disengaged from the garment and intermittently disengaging the puller roller when the stitch-forming mechanism is engaged with the garment. The puller device includes first and second presser feet positioned adjacent the puller roller for urging the garment against the puller roller. First and second pneumatic cylinders are operatively connected to the first and second presser feet, respectively, for selectively and independently moving the first and second presser feet into and out of engagement with different thicknesses…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.