Apparatus for folding box blanks
US4187769A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 10, 1978 |
| Grant date | Feb 12, 1980 |
| Priority date | — |
| Expiry date | Apr 10, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2120/30
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for folding box blanks wherein each blank comprises a first portion and one or more further portions to be folded inwardly to lie over the first portion in superimposed relationship therewith the apparatus including a conveyor for carrying the blanks successively through the apparatus during folding and means at the side of the conveyor for progressively manoeuvering the further portion or portions of each blank into the folded position as the blank is conveyed, a pair of elongate flat tongues adjacent the line along which the or each further portion is to be folded so as to hold the blank against the conveying surfaces, the tongues being spaced apart in their upstream region to prevent the further portion from falling inwardly and thus to control the folding movement, the tongues being held apart by a stud while the upper tongue can twist with respect to the lower tongue towards the downstream ends thereof to accommodate the progressively reducing angle between the first portion and the further portion as the latter is folded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.