Method for manufacturing a vehicle interior trim part intended for covering an airbag

Patent metadata

Field	Value
Publication number	US-2016288381-A1
Application number	US-201615086240-A
Country	US
Kind code	A1
Filing date	Mar 31, 2016
Priority date	Mar 31, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

A method for manufacturing a vehicle interior trim part intended for covering an airbag. The method includes the steps of: a) providing a support having an opening; b) providing a chute channel defining a passage to guide deployment of the airbag and integral with a cover member; c) fastening the chute channel to the support by a continuous peripheral bead of adhesive extending along the periphery of the opening; d) bringing a mold element to face the support and chute channel so as to define a closed cavity; and e) injecting foam into the cavity.

First claim

1 . Method for manufacturing a vehicle interior trim part intended for covering an airbag, comprising the steps of:
a) providing a support having an opening; b) providing a chute channel defining a passage to guide deployment of the airbag and a cover member adapted to cover the passage and fastened onto said chute channel; c) fastening the chute channel to the support; d) bringing a mold element to face the support and chute channel, so as to define a closed cavity; and e) injecting foam into the cavity, wherein during step c), the chute channel is fastened to the support by a continuous peripheral bead of adhesive extending along the periphery of the opening.

2 . Method according to claim 1 , comprising, between step b) and step c), a step of applying onto the chute channel the adhesive intended for forming the bead of adhesive.

3 . Method according to claim 2 , wherein the adhesive intended for forming the bead of adhesive is applied to a peripheral flange of the chute channel extending substantially perpendicularly to a channel wall, of the chute channel, that is substantially tubular and defines the passage.

4 . Method according to claim 1 , wherein the adhesive used to form the bead of adhesive in step c) comprises a polyolefin adhesive.

5 . Method according to claim 1 , wherein the adhesive used to form the bead of adhesive in step c) comprises a polyurethane adhesive.

6 . Method according to claim 1 , wherein the adhesive used to form the bead of adhesive in step c) is hot melt.

7 . Method according to claim 1 , wherein the adhesive used to form the bead of adhesive in step c) is curable.

8 . Method according to claim 1 , wherein the support provided in step a) and/or the chute channel provided in step b) comprises polypropylene.

9 . Vehicle interior trim part intended for covering an airbag, comprising:
a support having an opening; a chute channel defining a passage to guide deployment of the airbag and a cover member adapted to cover the passage and fastened to said chute channel thereon, said chute channel being fastened to the support; and a foam layer extending over the support and chute channel at the opening; wherein the chute channel is fastened to the support by a continuous peripheral bead of adhesive extending along the periphery of the opening.

10 . Vehicle interior trim part according to claim 9 , wherein:
the chute channel comprises a substantially tubular channel wall defining the passage, and a peripheral flange extending substantially perpendicularly to the channel wall; and the support and the peripheral flange of the chute channel together define a peripheral recess in which the bead of adhesive lies.

11 . Vehicle interior trim part according to claim 10 , wherein the support and the peripheral flange of the chute channel further define a radial channel having a first end opening into the peripheral recess.

12 . Vehicle interior trim part according to claim 9 , wherein the bead of adhesive comprises a polyolefin adhesive.

13 . Vehicle interior trim part according to claim 9 , wherein the support and/or the chute channel comprises polypropylene.

14 . Vehicle interior trim part according to claim 9 , wherein the support and/or the chute channel is reinforced with fibers.

15 . Vehicle interior trim part according to claim 9 , wherein during step b) the chute channel is provided with a cover member that is integral with the chute channel.

Assignees

• Faurecia Interieur Ind

Inventors

• Lard Frédéric

Classifications

• B29C65/4815

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

• B29C44/351

  Means for preventing foam to leak out from the foaming device during foaming · CPC title

• B60R13/0256

  Dashboard liners · CPC title

• B29K2623/12

  PP, i.e. polypropylene · CPC title

• B29C44/1257 Primary

  Joining a preformed part and a lining, e.g. around the edges · CPC title