Clamping arrangement for gripping and carrying web material
US4915283A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1988 |
| Grant date | Apr 10, 1990 |
| Priority date | — |
| Expiry date | Oct 6, 2008 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H5/085
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A clamping arrangement is disclosed for gripping and carrying web material about a die turret of a packaging machine for molding the web and for carrying the web through and off the packing machine as product is loaded and the package is sealed. The clamping arrangement includes a pair of aligned drive chains and a plurality of facing clamps mounted on each chain. Each clamp includes a lower jaw and an upper jaw pivotally mounted to the lower jaw and actuable between an opened and a closed position. A spring is connected between the upper and lower jaws which biases the upper jaw to the closed position. The lower and upper jaws each define complemental gripping teeth along an edge thereof, the respective teeth being disposed intermediate and adjacent one another when the upper jaw is in the closed position. The teeth of the lower jaw are horizontally aligned with the pitch line of the drive chain when assembled to the chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.