Spring coil assembly and system for making the same
US6758078B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2001 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jun 20, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C27/06
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A spring coil assembly having a first row of coils arranged in a first spacing pattern and a second row of coils adjacent the first row and arranged in a second spacing pattern that is different from the first spacing pattern. The spring coil assembly can be assembled using an apparatus comprising a main conveyor adapted to convey a plurality of coils along an axis, an assembler which is operable to intertwine a plurality of coils into a spring coil assembly, and a transfer station operable to move a plurality of coils from the main conveyor into the assembler. The transfer station includes a plurality of pusher arms each of which include a gripper which is operable to grasp an individual coil, a carriage supporting the gripper arms and means for shifting the carriage axially relative to the axis so that a plurality of coils carried by the gripper arms are displaced in the direction of travel of the conveyor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.