Creasing unit for creating fold lines in cardboard, blank forming apparatus comprising such creasing unit and method for creating fold lines in cardboard
US10821699B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 2017 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Jun 11, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B2210/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A creasing unit for creating fold lines in cardboard, comprising two crease rollers, each crease roller having a circumferential protrusion adapted for indenting cardboard to create a fold line, wherein the crease rollers are rotatably mounted next to each other such that each crease roller can rotate about its own center axis and each crease roller is movable between at least a first position for creating a fold line and a second position for either allowing cardboard to pass the respective crease roller without being indented by the respective crease roller or for creating an additional indented line being less deep than the fold line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.