Spring-loaded platen rollers with a sealed axle
US4731009A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 8, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | Oct 8, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S100/918
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Spring-loaded rollers for a mold have a sealed axle mount which passes through the roller into a supporting portion of the seats in the platen to prevent the roller from rotating, twisting or otherwise moving in the seat in the roller assembly and in the mold. The roller assembly is easily removed from its seat through the use of a removal device cooperating with screw threads in the roller. A plurality of rollers are used to permit a mold to be easily moved into and out of position in a press. The mold is thus mounted in position since the rollers limit the ability of the mold to move laterally. The seals are dished TEFLON disks which overfit the axle and interfit either against the sides of the roller or within slots cut circumferentially on either side of the roller. The walls of the slot may be undercut and/or otherwise shaped. The invention makes it very easy to move the heavy molds into and out of the press thereby reducing operator fatigue. The invention is keyed and grooved to keep the rollers aligned so the molds will move into proper location in the press. Wear and tear is reduced on both the molds and the platens. The axle is sealed to keep dirt out of the axle hole to p…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.