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US 2003/0224919 A1Published application
Device for breaking the nicks connecting the blanks of a pile of cardboard sheets
AssigneeBobst SA
InventorGilbert Joux
Life of this patent
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AssigneeBobst SA
InventorGilbert Joux
Estimating the term…
This device for breaking the nicks connecting two edges of a line of cut of stacked sheets of cardboard (5) placed on horizontal support and transportation means (8, 9, 34a, 6, 30) for moving the said sheets in a longitudinal direction, comprises upper clamping means (21, 22, 32) for clamping the stacked sheets (5) against the said support means (8, 9, 34a), first means (35) for longitudinally moving apart the said support and transportation means (8, 9, 34a, 6, 30) and the said clamping means (21, 22, 23) on both sides of a transverse line of cut of the said stacked sheets, and second means for moving apart transversely a part of the said support and clamping means (8, 9, 21, 22) on both sides of a longitudinal line of cut. It further includes second horizontal support and transportation means for moving the said stacked sheets (5) in a transverse direction.
Device for breaking the nicks connecting two edges of a line of cut of stacked sheets of cardboard (5) placed on horizontal support and transportation means (8, 9, 34a, 6, 30) for moving the said sheets in a longitudinal direction, comprising upper clamping means (21, 22, 32) for clamping the stacked sheets (5) against the said support means (8, 9, 34), first means (35) for longitudinally moving apart the said support and transportation means (8, 9, 34a, 6, 30) and the said clamping means (21, 22, 23) on both sides of a transverse line of cut of the said stacked sheets, and second means (12, 25) for moving apart transversely a part of the said support and clamping means (8, 9, 21, 22) on both sides of a longitudinal line of cut, characterised in that it includes second horizontal support and transportation means (16, 19) for moving the said stacked sheets (5) in a transverse direction.
Device as claimed in any one of the preceding claims, wherein the said second horizontal transport means (16, 19) include at least one flexible element (19) extending over the whole length of the said second support means (16) and passing around two sheaves (20a, 20b) extending laterally to the respective ends of the said second support means (16), the respective ends of the said flexible element (19) being fixedly attached to the said first horizontal support means (8, 9) so that when these support means move laterally in one direction the part of the said flexible element (19) extending over the said second support means (16) moves laterally in the other direction.
Device as claimed in any one of the preceding claims, wherein the said first horizontal transportation means (6) include at least two endless conveyor belts located on both sides of the place where the said first horizontal support means (8, 9) are caused to separate from each other, and that the upper parts of these conveyor belts (6) extending over the said first support means (8, 9) form at least two open transverse loops (6a) extending below the level of the said first support means (8, 9), the said second support and transportation means (16, 19) being disposed in the said open transverse loops (6a).
Dependencies are inferred from the claim text.