US 9,797,424 B2Granted

Local connection of sheets onto one another, method and apparatus for the implementation thereof

AssigneeCreax Projects N.V.

InventorsJef Vandenberghe, Diederick Syoen, Simon Dewulf

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Abstract

A local connection of contact surfaces of top and bottom sheets is formed in a defined connection zone. The zone is polygonal and the top and bottom sheets jointly form within the periphery of this zone a connecting lip with their first side faces located opposite one another cut obliquely through their sheet thickness. These first side faces of the sheets and their adjacent obliquely-oriented second side faces in the zone are complementarily beveled in the form of a conical wall running downwards and inwards, so that in the vicinity of these second neighboring side faces the underside of the bottom sheet protrudes inwards past the top surface of the connecting lip at the location of the top outside edges of its first side faces. A method and an apparatus are arranged to implement the local connection.

Claims8

Dependent claims

A local connection of a top sheet and a bottom sheet onto one another at a contact surface of each of the top sheet and the bottom sheet in at least one defined connection zone,

wherein the connection zone is polygonal, and wherein
within a periphery of the connection zone the top and bottom sheets jointly form a connecting lip,
first side faces of the top and bottom sheets located opposite one another are cut obliquely through a sheet thickness of the top and bottom sheets, the first side faces of the top and bottom sheets being cut obliquely with respect to a thickness direction of the top and bottom sheets,
the first side faces of the top and bottom sheets and adjacent obliquely-oriented second side faces of the top and bottom sheets in the connection zone are complementarily bevelled to extend downward and inward such that an underside of the bottom sheet protrudes inwards past a top surface of the connecting lip at a location of corresponding top outside edges of each of the first side faces.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 14/124,811Filed 8 Jun 2012
Priority: BE 2011/03539 Jun 2011
Published: US 2014/0099158 A110 Apr 2014
Granted: 24 Oct 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

F16B 5/0096
Joining sheets or plates , e.g. panels, to one another or to strips or bars parallel to them: by using permanent deformation
B31F 5/027
By crimping or slotting or perforating: by perforating, e.g. by folding over the partially cut part
B65B 7/24
By folding-down preformed flaps: and interengaging tongue and slot closures
B65D 5/4279
Details of containers or of foldable or erectable container blanks: joints, seams, leakproof joints or corners, special connections between panels