MULTI-PART AIR DUCT FOR A MOTOR VEHICLE, METHOD FOR PRODUCING AN AIR DUCT OF THIS TYPE, AND MOTOR VEHICLE HAVING AN AIR DUCT OF THIS TYPE

Abstract

A multi-part air duct (10) for a motor vehicle has a lower foam part (11), an upper foam part (12), and lateral injection moldings (13, 14). The injection moldings (13, 14) connect the lower foam part (11) to the upper foam part (12) on both sides.

Claims

1. An air duct for a motor vehicle, comprising: a lower foam part; an upper foam part; and lateral injection moldings that connect the lower foam part to the upper foam part on both sides.

2. The air duct of claim 1, further comprising snap elements that include clips and/or snap hooks, and the snap elements connect the injection moldings to the lower foam part and to the upper foam part.

3. The air duct of claim 1, wherein the lower foam part comprises hinges.

4. The air duct of claim 1, wherein the upper foam part bears against a radiator of the motor vehicle externally.

5. A method for producing an air duct, comprising: forming a lower foam part and an upper foam part, casting injection moldings, and joining the lower foam part to the upper foam part on both sides by the injection moldings.

6. The method of claim 5, wherein the joining is performed by pressing on clips.

7. The method of claim 6, further comprising packing and transporting the lower foam part, the upper foam part and the injection moldings after the foaming and casting and before the joining.

8. The method of claim 5, wherein the packing comprises folding the lower foam part by hinges, in particular film hinges.

9. A motor vehicle, comprising a radiator, and the air duct of claim 1.

10. The motor vehicle of claim 9, wherein the air duct bears against a radiator externally by means of the upper foam part.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 is a first perspective view of an air duct according to the invention.

[0012] FIG. 2 is a second perspective view of the air duct.

[0013] FIG. 3 shows a first detail of the air duct.

[0014] FIG. 4 shows a second detail of the air duct.

[0015] FIG. 5 shows a third detail of the air duct.

[0016] FIG. 6 is a first perspective view of a lower foam part of the air duct.

[0017] FIG. 7 is a second perspective view of the lower foam part

[0018] FIG. 8 is in longitudinal section a motor vehicle according to the invention.

DETAILED DESCRIPTION

[0019] When viewed in combination, FIGS. 1 and 2 illustrate the basic structural features of an air duct 10 according to the invention. Based on its intended position in a motor vehicle, this air duct 10 comprises a lower foam part 11, an upper foam part 12, and lateral injection moldings 13, 14 that connect the lower foam part 11 to the upper foam part 12 on both sides.

[0020] FIGS. 3, 4 and 5 illustrate the snap connection between the upper foam part 12 on one side and the injection molding 14 shown in FIG. 1 on the rightand thus in FIG. 2 on the lefton the other side. FIGS. 3 and 4 show a snap hook 16 that can be expanded resiliently by pushing in the upper foam part 12. In this way, after being pushed in completely, the upper foam part 12 is tensioned elastically against a projection formed in the injection molding 14. As a result, a force-fitting and form-fitting connection arises between the foam part 12 and the injection molding 14.

[0021] The detail of FIG. 5 highlights one of the clips 15 used in the upper region of the air duct 10. The clip 15, in its end position (shown in the drawing), connects the upper foam part 12 and the injection molding 14 in a further direction of action in a form-fitting manner. However, other joining methodsfor example screwing, clipping, clamping, or otherwise joining by pressing on or in within the meaning of DIN 8593-3suitable for the connecting partners 11, 12, 13, 14 may be used, without departing from the scope of the invention.

[0022] FIG. 6 shows the lower foam part 11 on its own. Film hinges 17 extend parallel to one another and allow the lower foam part 11 to twist between the alternative configurations 21, 31 indicated in FIG. 7 can be seen.

[0023] Finally, FIG. 8 illustrates the design of the upper foam part 12 on the basis of its intended installation position in the motor vehicle 20). A bulge 19 can be seen in the upper region of the part and permits the air duct 10 to bear directly externally against the radiator 18 during production.