Carrier for sealing a mold cavity, multicomponent plastic part containing said carrier, and device and method for producing the multicomponent plastic part

Patent metadata

Field	Value
Publication number	US-10471636-B2
Application number	US-201314439575-A
Country	US
Kind code	B2
Filing date	Oct 23, 2013
Priority date	Nov 6, 2012
Publication date	Nov 12, 2019
Grant date	Nov 12, 2019

Abstract

A plastic carrier for sealing a mold cavity during the production of a multicomponent plastic part, wherein at least one component flows over a plastic element and the carrier, with the carrier becoming an integral part of the multicomponent plastic part. The carrier has a central region sealing the mold cavity when the plastic element is inserted into the mold cavity, a first main face facing the mold cavity and a second main face facing away from the first main face. The carrier has a peripheral edge extending beyond the central region and the outer circumference of the mold cavity, allowing the at least one component to flow over the first main face of the peripheral edge. The carrier also has a first edge region forming a fold-over projection and a second edge region arranged between the central region and the first edge region for forming a film hinge.

First claim

What is claimed is:

1. A multi-component plastic part, comprising:
a carrier including a central region which has opposite main faces, and a peripheral region which extends the central region outwards and is defined by a first edge region and a second edge region which is arranged between the central region and the first edge region, said first edge region being folded over so that a main face of the first edge region in prolongation of one of the main faces of the central region faces and directly contacts the one of the main faces of the central region,
a plastic element placed directly on the other one of the main faces of the central region, and
at least one component applied by flooding and covering the plastic element and at least a main face of the second edge region in prolongation of the other one of the main faces of the central region.

2. The multi-component plastic part of claim 1 , wherein the carrier includes:
first connecting elements disposed on the main face of the first edge region, and
second connecting elements disposed on the one of the main faces of the central region, wherein one of the first connecting elements is connected with a respective one of the second connecting elements by constructing the first connecting elements and the second connecting elements so that the main face of the first edge region faces the one of the main faces of the central region after the first edge region has been folded over.

3. The multi-component plastic part of claim 2 , wherein the first connecting elements and the second connecting elements are each constructed as latching elements.

4. The multi-component plastic part of claim 2 , wherein each first connecting element is arranged with a second connecting element in a pair, with each pair comprising a locking projection and an associated locking recess.

5. The multi-component plastic part of claim 1 , further comprising retaining projections extending out from another main face of the first edge region in prolongation of the other one of the main faces of the central region.

6. The multi-component plastic part of claim 5 , wherein the retaining projections extend approximately perpendicular to the other main face of the first edge region and are sized to protrude from the first edge region beyond a layer thickness of the at least one component.

7. A multi-component plastic part, comprising:
a carrier including a central region which has opposite main faces, and a peripheral region which extends the central region outwards and is defined by a first edge region and a second edge region which is arranged between the central region and the first edge region, said first edge region being folded over so that a main face of the first edge region in prolongation of one of the main faces of the central region faces and directly contacts the one of the main faces of the central region,
a plastic element placed on the other one of the main faces of the central region,
at least one component applied by flooding and covering the plastic element and at least a main face of the second edge region in prolongation of the other one of the main faces of the central region, and
retaining projections extending out from another main face of the first edge region in prolongation of the other one of the main faces of the central region.

8. The multi-component plastic part of claim 7 , wherein the retaining projections extend approximately perpendicular to the other main face of the first edge region and are sized to protrude from the first edge region beyond a layer thickness of the at least one component.

Assignees

• Krauss Maffei Tech Gmbh
• Kraus Maffei Tech Gmbh

Inventors

• Bayer Stefan

Classifications

• B29C45/0081

  of objects with parts connected by a thin section, e.g. hinge, tear line · CPC title

• B29K2075/02

  Polyureas · CPC title

• B29L2009/00

  Layered products · CPC title

• Y10T428/24008

  including fastener for attaching to external surface · CPC title

• B29C45/16 Primary

  Making multilayered or multicoloured articles {(B29C45/0062 takes precedence; feeding colouring materials into the injection unit B29C45/1816)} · CPC title