Casting tool, method and use of a casting tool for postforming a cast part and cast part

Patent metadata

Field	Value
Publication number	US-12420467-B2
Application number	US-202217901937-A
Country	US
Kind code	B2
Filing date	Sep 2, 2022
Priority date	Sep 2, 2021
Publication date	Sep 23, 2025
Grant date	Sep 23, 2025

Abstract

A casting tool has a tool part that, in a casting position, delimits a hollow of the casting tool and shapes a negative form of a self-supporting cantilever of a cast part. The tool part is transferable from the casting position along a separation direction into a separation position to demold the cast part. The hollow has an undercut with respect to the separation direction that is shaped by the tool part in the casting position.

First claim

What is claimed is:

1. A casting tool, comprising:
a tool part that, in a casting position, delimits a hollow of the casting tool and shapes a negative form of a self-supporting cantilever of a cast part, the tool part is transferable from the casting position along a separation direction into a separation position to demold the cast part, the hollow has an undercut with respect to the separation direction that is shaped by a portion of the tool part in the casting position; and
a further tool part delimiting the hollow, the tool part and the further tool part are a pair of casting mold halves, the tool part has a first surface opposite a second surface of the further tool part, the first surface and the second surface are shaped differently, the first surface and the second surface each shape the negative form of the self-supporting cantilever.

2. The casting tool of claim 1 , wherein the further tool part does not shape the undercut of the hollow with respect to the separation direction.

3. The casting tool of claim 2 , wherein the undercut extends from the tool part toward the further tool part transversely to the separation direction.

4. The casting tool of claim 2 , wherein the tool part and the further tool part are separable from one another along the separation direction.

5. The casting tool of claim 2 , wherein one of the casting mold halves is an injection side and the other of the casting mold halves is an ejector side.

6. The casting tool of claim 5 , wherein the undercut is shaped by the one of the casting mold halves that is the ejector side.

7. The casting tool of claim 2 , wherein the tool part and the further tool part are a pair of sliders, each slider of the pair of sliders is configured to be withdrawn from the casting tool.

8. The casting tool of claim 7 , wherein the withdrawal of one of the sliders is blocked by the other slider of the pair of sliders.

9. The casting tool of claim 1 , wherein the casting tool shapes a connector housing, the self-supporting cantilever is part of the connector housing and has a latching hook.

10. The casting tool of claim 9 , wherein the hollow is a negative shape of the latching hook.

11. A cast part demolded from a casting tool, comprising:
a connector housing having a contact chamber; and
a self-supporting cantilever having an undercut, the self-supporting cantilever extends from an inner wall of the connector housing and extends into the contact chamber, the self-supporting cantilever having a position in a demolded, force-free state of the cast part that is moved in a direction facing away from the undercut compared to a non-demolded state.

12. The cast part of claim 11 , wherein the self-supporting cantilever is plastically deformed in the demolded, force-free state compared to the non-deformed state.

13. The cast part of claim 11 , wherein the self-supporting cantilever is a latching tab, the latching tab provides a support surface for a contact element received within the contact chamber.

14. The casting tool of claim 1 , wherein the tool part has a withdrawal bevel extending away from the portion of the tool part, the withdrawal bevel has a rounded edge on the first surface of the tool part.

15. The casting tool of claim 14 , wherein the tool part has an extension part extending from the withdrawal bevel.

16. The casting tool of claim 15 , wherein the extension part has a rectangular shape, an end of the rectangular shape has rounded edges.

17. The casting tool of claim 1 , wherein the pair of casting mold halves are not mirror images of each other.

18. The casting tool of claim 1 , wherein the cast part and the tool part preliminarily latch together via the undercut of the cantilever.

Assignees

• Te Connectivity Germany Gmbh

Inventors

• Pamin Rudolf

Classifications

• B29C45/44

  for undercut articles · CPC title

• B29C2045/445

  using the movable undercut forming element for ejection of the moulded article · CPC title

• B29C45/26 Primary

  Moulds · CPC title