Lacing wire stop mechanism for a coil spring assembly machine
US4445547A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1981 |
| Grant date | May 1, 1984 |
| Priority date | — |
| Expiry date | Sep 10, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/093
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A stop mechanism operative to stop a sprial lacing wire if the lacing wire encounters an obstacle as it is being wound in lacing fashion about juxtaposed end loops of coil springs in two adjacent coil spring rows, and after the lacing wire has completely laced together those two spring rows. A sensor functions to sense when the spiral lacing wire encounters an obstacle in its lacing path, the sensor incorporating a proximity switch that cooperates with a bowed guide element. The bowed guide element induces the lacing wire to pop out or bow away from the switch when the obstacle is encountered, activation of the switch causing the lacing wire to stop at once in its lacing path. A clamp device cooperates with a feeder switch to clamp the unlaced spiral lacing wire between its jaws when the feeder switch is activated by the lacing wire's lead end after the lacing wire has traversed the entire length of the adjacent rows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.