Method and apparatus for controlling an assembly for bonding a cover material to foam
US5755901A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 8, 1996 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | May 8, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1031
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus (84, 94) for controlling an assembly for bonding a cover (22) over the undulating surface of a foam cushion (10) by controlling a ram actuator cylinder (90) to lift a ram (14) to permit placing the foam cushion (10) on a tool (18), lowering the ram (14) to pierce the cushion (10) with a plurality of needles (44), lifting the ram (14) to lift the cushion (10) which is frictionally retained on the needles (44), controlling a heater (38) to heat ambient air and ejecting the hot air from the needles (44) into the cushion (10) to elevate the temperature of the cushion. A pair of plate actuator cylinders (62) are controlled to dispose a compression plate (58) with holes (60) extending therethrough against the backside of the cushion (10) with the needles (44) extending through the holes (60). The ram (14) is lowered to place the undulating surface of the cushion (10) against an adhesive material (82) on the backside of the cover (22) so that heat is transferred from the cushion (10) to melt the adhesive (82). The ram is raised to extract the needles (44) from the cushion (10) as the compression plate (58) is maintained in place to hold the cushion (10) against the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.