Hollow plastic piece

Patent metadata

Field	Value
Publication number	US-9249763-B2
Application number	US-201113820503-A
Country	US
Kind code	B2
Filing date	Aug 22, 2011
Priority date	Sep 2, 2010
Publication date	Feb 2, 2016
Grant date	Feb 2, 2016

Abstract

A hollow plastic part may include at least two plastic shells connected with one another at a respective edge along at least one joining plane. Each plastic shell may have at least a first component and a second component, wherein the plastic of the first component may have a lower melting temperature than the plastic of the second component. The first component may extend on at least one plastic shell in a caterpillar-like manner along at least part of the respective edge of the second component of this plastic shell.

First claim

The invention claimed is:

1. A hollow plastic part, comprising: at least two plastic shells,
wherein the plastic shells are connected with one another at a respective edge along at least one joining plane,
wherein each plastic shell has at least a first component and a second component,
the two components are formed from different plastics, wherein a plastic of the first component has a lower melting temperature than a plastic of the second component,
wherein the first component with the lower melting temperature extends on at least one plastic shell in a caterpillar-like manner along at least part of the respective edge of the second component of this plastic shell, and
wherein a melting temperature of the first component is approximately 240-260° C. and a melting temperature of the second component is approximately 280° C.

2. The hollow plastic part according to claim 1 , wherein the plastic hollow part is constructed as an air intake manifold for an internal combustion engine.

3. The hollow plastic part according to claim 1 , wherein the first component is constructed as part of a bellows and the second component is constructed in a form of a half pipe.

4. The hollow plastic part according to claim 1 , wherein the at least one respective edge has at least one of a groove, a ridge, a pin, a needle, a sawtooth contour and a through-opening.

5. The hollow plastic part according to claim 4 , wherein the at least one respective edge has at least one groove having rounded corner regions.

6. The hollow plastic part according to claim 1 , wherein the first component extends in the caterpillar-like manner along at least part of the respective edge of the joining plane and surrounds the respective edge of the associated second component.

7. The hollow plastic part according to claim 1 , wherein the at least one respective edge has a ridge having a free end configured to deform during welding of the two plastic shells and form a head configured to be surrounded by the caterpillar-like first component.

8. The hollow plastic part according to claim 1 , wherein the at least one respective edge has a through-opening and further wherein the first component is configured to deform through the at least one through-opening and solidify therein during welding of the two plastic shells.

9. The hollow plastic part according to claim 1 , wherein the two plastic shells are constructed as identical parts.

10. The hollow plastic part according to claim 1 , further comprising at least one fastening element configured to fix the two plastic shells to one another.

11. The hollow plastic part according to claim 10 , wherein the fastening element is at least one of a clip element and a screw.

12. A plastic shell for a hollow plastic part, the plastic shell comprising:
at least a first component and a second component,
wherein the two components are formed from different plastics and a plastic of the first component has a lower melting temperature than a plastic of the second component,
wherein the first component with the lower melting temperature extends in a caterpillar-like manner along at least part of an edge of the associated second component, and
wherein the edge has a ridge having a free end configured to deform during welding of the two plastic shells and form a head configured to be surrounded by the caterpillar-like first component.

13. The plastic shell according to claim 12 , wherein the first component is constructed as part of a bellows and the second component is constructed in the form of a half pipe.

14. The plastic shell according to claim 12 , wherein the edge has at least one groove having rounded corner regions.

15. The plastic shell according to claim 12 , wherein the first component extends in the caterpillar-like manner along at least part of the edge and surrounds the edge of the associated second component.

16. The plastic shell according to claim 12 , wherein the melting temperature of the first component is approximately 240-260° C. and the melting temperature of the second component is approximately 280° C.

17. The plastic shell according to claim 12 , wherein the edge has at least one through-opening and further wherein the first component is configured to deform through the at least one through-opening and solidify therein during welding of the two plastic shells.

18. The plastic shell according to claim 12 , further comprising at least one fastening element configured to fix the two plastic shells to one another.

19. A hollow plastic part, comprising: at least two plastic shells,
wherein the plastic shells are connected with one another at a respective edge along at least one joining plane,
wherein each plastic shell has at least a first component and a second component formed from different plastics, wherein a plastic of the first component has a lower melting temperature than a plastic of the second component,
wherein the first component with the lower melting temperature extends on at least one plastic shell in a caterpillar-like manner along at least part of the respective edge of the second component of this plastic shell, and
wherein the at least one respective edge has a through-opening, and the first component is configured to deform through the at least one through-opening and solidify therein during welding of the two plastic shells.

Assignees

• Grass Uwe
• Kaiser Sven Alexander
• Mahle Int Gmbh

Inventors

• Grass Uwe
• Kaiser Sven Alexander

Classifications

• B29C66/91931

  in explicit relation to the fusion temperature or melting point of the material of one of the parts to be joined · CPC title

• B29L2031/3055

  Cars · CPC title

• B29C66/1312

  Single flange to flange joints, the parts to be joined being rigid (the parts to be joined being flexible B29C66/133) · CPC title

• B29C65/564

  hidden in the joint, e.g. dowels or Z-pins (B29C65/603 takes precedence) · CPC title

• B29C65/4815

  Hot melt adhesives, e.g. thermoplastic adhesives · CPC title