Automatic sewing apparatus
US4498404A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 15, 1982 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Sep 15, 2002 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05D2303/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Sewing apparatus includes a manipulator for manipulating the workpiece on the sewing table with respect to the sewing head, the manipulator including a first arm rotatably mounted to the main frame about a first vertical axis, a second arm rotatably mounted to the first arm about a second vertical axis, a manipulatable head rotatably mounted to the second arm about a third verticle axis, and a plurality of rotary motors for rotating the first and second arms and the manipulator head about their respective axes. The manipulator head is a suction head, and the table is formed with apertures for selectively applying either positive or negative fluid pressure to its upper face in order to selectively produce either suction for holding the workpiece, or an air cushion for facilitating moving the workpiece by the manipulator. According to a still further feature, the apparatus also includes a workpiece detector continuously monitoring the location of the edge of the workpiece with respect to the sewing head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.