Printed damping element

Patent metadata

Field	Value
Publication number	US-10793089-B2
Application number	US-201716467139-A
Country	US
Kind code	B2
Filing date	Dec 5, 2017
Priority date	Dec 9, 2016
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

A dam element for the damming of a structure element within a vehicle includes a support element and an expandable element. The support element consists of at least one printed strand of a first material, where the first material is in a solid physical state at least up to a temperature of from 120° C. to 200° C., and the expandable element consists of at least one printed strand of a second material, where the second material is expandable at a temperature between 120° C. and 200° C. The dam element here has, at a point of greatest thickness, measured perpendicularly to a plane of the dam element, at least two, and at most ten, mutually superposed layers.

First claim

What is claimed is:

1. A dam element for the damming of a structure element within a vehicle, wherein the dam element comprises:
a support element consisting of at least one printed strand of a first material, where the first material is in a solid physical state at least up to a temperature of from 120° C. to 200° C.; and
an expandable element consisting of at least one printed strand of a second material, where the second material is expandable at a temperature between 120° C. and 200° C.,
wherein the dam element has, at a point of greatest thickness, measured perpendicularly to a plane of the dam element, at least two, and at most ten, mutually superposed layers.

2. The dam element as claimed in claim 1 , wherein the dam element has at least one arm which is at least to some extent at an angle to the plane of the dam element, and which is composed of the first material or of the second material or of the first and the second material.

3. The dam element as claimed in claim 1 , wherein the printed strands of the first material and/or of the second material have a rounded cross section with diameter from 1 mm to 6 mm, or a cross section with height from 1 mm to 6 mm and width from 2 mm to 30 mm.

4. The dam element as claimed in claim 1 , wherein the support element and/or the expandable element consist(s) of at least one, and at most ten, trace(s).

5. The dam element as claimed in claim 1 , wherein the dam element comprises a fastening element for the fastening of the dam element.

6. The dam element as claimed in claim 5 , wherein the fastening element comprises injection-molded plastic and/or comprises metal.

7. The dam element as claimed in claim 5 , wherein the fastening element has a base which lies within the plane of the dam element, and which is cramped between two mutually superposed layers, or is in contact only with one layer.

8. The dam element as claimed in claim 5 , wherein the fastening element has a projection which is configured perpendicularly to the base, and which is cramped between two strands that, within the plane of the dam element, are adjacent to one another, or which is in contact only with one strand.

9. A system with a structure element and with, arranged therein, a dam element as claimed in claim 1 .

10. The system as claimed in claim 9 wherein, before an expansion of the expandable element, the dam element covers from 20% to 60% of a cross section of the structure element.

11. A process for the production of a dam element with a support element and with an expandable element for the use within a structure element of a vehicle, wherein the process comprises the steps of:
provision of a bed element;
printing of at least one strand made of a first material for the formation of a support element, where the first material is in a solid physical state at least up to a temperature of from 120° C. to 200° C.;
printing of at least one strand made of a second material for the formation of an expandable element, where the second material is expandable at a temperature of from 120° C. to 200° C.; and
removal of the dam element from the bed element,
wherein the at least one strand made of the first material and the at least one strand made of the second material are printed in a manner such that the dam element has, at a point of greatest thickness, measured perpendicularly to a plane of the dam element, at least two, and at most ten, mutually superposed layers.

12. The process as claimed in claim 11 , wherein the process comprises the further step of:
reuse of the bed element for production of a following dam element after a dam element has been removed from the bed element.

13. The process as claimed in claim 11 , wherein the bed element has depressions and/or elevations for the formation of arms which at least to some extent are at an angle to the plane of the dam element.

14. The process as claimed in claim 11 , wherein the bed element has a positioning element, and where the process comprises the step of:
attachment of a fastening element within the positioning element and onto at least one layer of the first and/or of the second material.

15. The process as claimed in claim 11 , wherein during removal of the dam element from the bed element ejector elements are moved in relation to the bed element.

Assignees

• Sika Tech Ag

Inventors

• Belpaire Vincent

Classifications

• B29K2677/00

  Use of {PA, i.e.} polyamides, e.g. polyesteramides {or derivatives thereof,} for preformed parts, e.g. for inserts · CPC title

• B29K2105/0005

  containing compounding ingredients (releasing, lubricating or separating agents B29C33/56, fibers B29K2105/08, B29K2105/12; fillers B29K2105/16, recycled material B29K2105/26) · CPC title

• B29L2031/30

  Vehicles, e.g. ships or aircraft, or body parts thereof {(vanes or blades B29L2031/08, air bags B29L2022/027)} · CPC title

• B29K2101/12

  Thermoplastic materials · CPC title

• B60R13/08 Primary

  Insulating elements, e.g. for sound insulation {(sound insulating linings for trains B61D17/185; drivers' cabs for load-carrying vehicles insulated against vibrations or noise B62D33/0604; thermal or acoustic insulation of engines F02B77/11; damping of sounds using compensation by electro-acoustic methods G10K11/178)} · CPC title