# US 2019/0168430 A1 · Method for producing a component assembly for a motor vehicle, component assembly for a motor vehicle, and motor vehicle having the component assembly

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2019/0168430 A1
- Document ID: US20190168430A1
- Status: Published application
- Kind: A1
- Application number: 16/259,495
- Filed: 2019-01-28
- Published: 2019-06-06
- Earliest claimed: 2016-07-28
- Assignees: Volkswagen Aktiengesellschaft
- Applicants: Volkswagen Aktiengesellschaft
- Inventors: Stefan OSTWALD; Olaf HEINEMANN
- Web page: https://patentgrep.com/patent/US20190168430A1

## CPC

- B29C 45/174: {Applying a pressurised fluid to the outer surface of the injected material inside the mould cavity, e.g. for preventing shrinkage marks}
- B29C 45/0001: {characterised by the choice of material}
- B29C 45/0025: {Preventing defects on the moulded article, e.g. weld lines, shrinkage marks (preventing defects on the preformed parts or layers B29C45/14836)}
- B29C 45/14336: {Coating a portion of the article, e.g. the edge of the article (B29C45/14573 and B29C45/14598 take precedence)}
- B29C 45/7207: {of the moulded articles}
- B29C 45/7337: {using gas or steam (B29C45/7331 takes precedence)}
- B60R 21/205: in dashboards
- B29C 33/046: {using gas}
- B29C 2035/1658: {using gas}
- B29C 2045/14893: {Preventing defects relating to shrinkage of inserts or coating material}
- B29K 2023/12: {PP, i.e. polypropylene}
- B29K 2623/12: {PP, i.e. polypropylene}
- B29K 2995/0022: Bright, glossy or shiny surface
- B29L 2012/00: Frames
- B29L 2031/3008: {Instrument panels}
- B60R 2021/161: {characterised by additional means for controlling deployment trajectory}
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A method for producing a component assembly for a motor vehicle, wherein the component assembly has a base body for an instrument panel of the motor vehicle and at least one functional component, wherein the at least one functional component is injection-molded to the base body during the production of the component assembly and the component assembly is produced using a gas external pressure process. A component assembly for a motor vehicle is also provided, having a base body for an instrument panel of the motor vehicle and at least one functional component, wherein the base body is produced as an integral injection-molded part together with the at least one functional component using an external gas pressure process. Also, a motor vehicle having a component assembly is provided.

## Claims

### Claim 1

A method for manufacturing a component assembly for a motor vehicle, wherein the component assembly comprises a base body for an instrument panel of the motor vehicle and at least one functional component, the method comprising:
molding the at least one functional component to the base body during the manufacture of the component assembly; and
producing the component assembly using a gas external pressure process.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the at least one functional component is injection-molded onto a rear side of the base body facing away from a visible side of the base body.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the at least one functional component comprises or is designed as an airbag deployment channel.

### Claim 4 (depends on 1)

The method according to claim 1, wherein external gas pressure is applied to a planar region of the base body around the at least one functional component during manufacture of the component assembly.

### Claim 5 (depends on 4)

The method according to claim 4, wherein the planar region of the base body is arranged on a rear side of the base body facing away from a visible side of the base body.

### Claim 6 (depends on 1)

The method according to claim 1, wherein in the production of the component assembly, the at least one functional component is at least sectionally cooled with CO2 spot cooling, which is applied in particular by a molding tool for manufacturing the component assembly.

### Claim 7 (depends on 1)

The method according to claim 1, wherein in the production of the component assembly, at least one recessed portion of the at least one functional component is cooled with CO2 spot cooling, which is applied by a molding tool for manufacturing the component assembly.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the component assembly is produced using the external gas pressure process and using polypropylene.

### Claim 9 (depends on 1)

A component assembly for a motor vehicle, wherein the component assembly is produced according to the method according to claim 1.

### Claim 10

A component assembly for a motor vehicle, the component assembly comprising:
a base body for an instrument panel of the motor vehicle; and
at least one functional component,
wherein the base body is produced as an integral injection-molded part together with the at least one functional component using an external gas pressure process.

### Claim 11 (depends on 9)

The component assembly according to claim 9, wherein the at least one functional component is molded to a rear side of the base body facing away from a visible side of the base body.

### Claim 12 (depends on 9)

The component assembly according to claim 9, wherein the at least one functional component is an airbag deployment channel.

### Claim 13 (depends on 9)

A motor vehicle comprising a component assembly according to claim 9.