WO2012150094A1

WO2012150094A1 - Connection of a support part to an insert

Info

Publication number: WO2012150094A1
Application number: PCT/EP2012/055404
Authority: WO
Inventors: Manfred WIRTHMÜLLER
Original assignee: Lisa Dräxlmaier GmbH
Priority date: 2011-05-03
Filing date: 2012-03-27
Publication date: 2012-11-08
Also published as: DE202012013179U1; DE202011100175U1; DE112012001954A5

Abstract

A fixture (1) for a vehicle, the fixture comprising a support (2) and a foamed insert (3), wherein the insert (3) is configured with fastening elements (6) for fixing the insert (3) to the support (2), and the fastening elements (6) are formed integrally with the insert (3), wherein the support (2) is provided with recesses (5) for receiving the fastening elements (6), and wherein the fastening elements consist of a first section (61) running through the support (2) from a front side, on which the insert (3) is arranged, as far as the rear side, and of a second section (62) protruding over the rear side (22) of the support (2).

Description

CONNECTION OF A TRACKING PART WITH ONE INSERT

Technical area

The invention relates to an equipment part for a vehicle, in particular for a motor vehicle, with a carrier and a foamed insert, wherein the insert via

Fastening elements for fixing on the carrier has.

State of Te h ik

In particular, interior components for motor vehicles, such as

Door panels, center consoles or instrument panels, have a layer structure of a carrier, a decor and a foam layer arranged therebetween, this

Foam layer should serve as a haptic layer to a

pleasant, soft touch on the surface of the

To achieve interior components.

The preparation of this layer structure can be achieved by a direct foaming of the foam layer on the support and a

subsequent lamination can be realized with a decorative layer. An inexpensive alternative is the use of foamed inserts as a foam layer, which in one

made separate foaming process and then laid on the carrier will. In the subsequent lamination process with the decorative layer, however, there is a risk in this process of undesired marks on the surface due to slippage or pushing away of the foamed material

Depositor. So far, this problem was due to an additional, cost and material intensive

Manufacturing step, for example, the bonding of the

Einleger with the carrier, avoided.

Description of the invention The object of the invention is to provide a piece of equipment with foamed inserts available. In the

Production of the equipment part is on one

dispenses with additional, costly and material-intensive adhesive process and allows direct installation of the insert on the carrier.

This object is achieved by the component according to claim 1. Advantageous embodiments follow from the subclaims and the preferred embodiments described.

The component according to the invention is an equipment part for a vehicle, in particular a vehicle

Kra tfahrzeug, consisting of a support made of a rigid and / or elastic material and a foamed insert disposed thereon, and preferably a decorative layer thereon, for example

laminated or padded w. The decorative layer may be a foil or a dermis. In a preferred embodiment of the equipment part of the insert itself forms the decorative surface, for example, the insert consists of an integral foam, or is provided before fixing to the support with a decorative layer. The foamed insert is z with fasteners

Fixation designed on the carrier, wherein the

Fasteners are formed integrally with this during the manufacturing process of the insert. It comes

preferably no adhesive for bonding carrier and insert for use. Rather, the connection is made

only positive and / or non-positive.

The insert consists of a foam system. In which

Foaming system may be a system which is foamable from suitable materials (for example, (bi) polymers) in a chemical or physical foam. As a chemically foamed system, a two-component system is preferable, in particular, a polyurethane foam system. To form the insert, the foam system is foamed, for example, in a foaming mold from a top and bottom tool. Both mold halves are equipped with a sealing surface in the plane of the run, which seal at a suitable internal pressure. The ventilation of the

Resulting reaction gases also takes place over this

Parting line. In the foaming mold, the insert receives the outer shape for placement on the carrier and is at the same time with the fastening elements for fixing to the carrier

designed.

The carrier may be made of a rigid material,

preferably polypropylene, acrylonitrile-butadiene-styrene or another suitable plastic, preferably produced in an injection molding process. But they are also conceivable

Fiber-reinforced plastics or compressed fiber mats made of natural and / or artificial fibers as carrier materials. Also are carriers of flexible materials and / or of several rigid materials, which is an articulated

Design of the carrier allow conceivable.

In the embodiment of the carrier are recesses for

Receiving the fasteners provided, for example in the form of grooves, holes or columns.

The fasteners of the insert consist of a first portion, which by the carrier of the

Front on which the depositor is arranged to the

Back passes through, and a two en section that protrudes from the back of the carrier. The first section is used for fixing or fitting the mounting position of the insert in a direction parallel to the carrier spanned and the second section is used for fixing in a direction perpendicular to the carrier. This is a complete

Fixing the insert relative to the wearer. The

Befes 1gungse1emente preferably have a

The shape of the tongue opens up, that is, the width of the second one Section of the fastener is at least partially larger than the width of the first section.

The minimum width of the first section must be one

allow sufficient stability of the fasteners and sufficient fixation on the carrier. A depth is greater for this first portion of the fastener, in particular equal to the depth of the recesses of the carrier. That is, the first portion lies partially, in particular completely, in the recesses of the carrier. Preferably, the width of the first section is the

Fasteners smaller than the average depth of the insert. Preferred for the first section are cylindrical or cuboidal configurations. One possible embodiment for the shape of the first section is a kind of bridge. The cross section of this first section preferably corresponds to that of the recesses in the carrier in order to realize a snug fit of the fastening elements. Preferably, the second portion of the tapers

Fastener towards the end, for a lighter

Pressing the fasteners to allow for fixing the insert to the carrier. In a preferred embodiment orm, the second section of the

Be estigungselements a mirror-symmetrical, in particular a spherically symmetrical shape. Conceivable, for example, second sections in the form of cylinders, prisms, spheres or pyramids.

An alternative embodiment provides for the second

Section of the fasteners before a configuration that allows folding the fasteners on the back of the carrier. Conceivable is a kind of narrow web, for example in the form of a film hinge, at the transition to the first section whose width is smaller than the remaining part of the second section. After pushing through the

Fastening elements through the recesses of the carrier, pressure is exerted on the fasteners, so that these on fold down the narrow bridge. Subsequently, the folded-over second portions of the fastening elements can be fastened in a suitable manner to the rear side of the carrier,

for example, by latching or hooking ,, clamping, or sticking. Preferably, in this case on the back of the carrier appropriate antidote in the form of locking or clamping means or defined iebeflächen provided.

The shape and size of the fasteners may each be the same, different or in groups the same. The number of fasteners of an insert is also variable. Depending on the size and design of the carrier, for example, several small fasteners or a few large sense. Optimally, the position and size of the fasteners is suitably adapted to the shape of the wearer and the best possible fixation of the insert on

Carrier adapted. Preferred is a different one

Arrangement and shape of the fasteners provided for different equipment parts to avoid a risk of confusion when fixing the insert to the carrier, for

Example of equipment for left and right-hand drive. Preferably, the shape of the insert and / or support supports the impressions and fixation of the

Fasteners. It is conceivable, for example, a kind of channel in the carrier on the recesses for receiving the

Fastening elements into which the insert equipped with a matching rib is pressed.

In a preferred embodiment, the

Edge regions of the insert designed such that they vsch in the carrier, which is provided with a suitable groove inserted. As a result of the depositor's eligir process, air pockets and voids may form, especially at the periphery. For example, caused by the vent during foaming unwanted

Schaumfiime on the edge of the insert. By sinking or insertion of the edge region in the carrier, these unwanted impairments of the insert are hidden, so that can be dispensed with an additional machining of the insert. In addition, insertion into this groove makes it possible to stabilize the insert during the transition from the support to the soft insert, so that a displacement of the support in the edge regions is avoided and a

additional simplification of the following Kaschiervorgangs can be achieved with a decorative layer.

Brief description of the drawings

Figure la shows a three-dimensional view of the foamed insert with fasteners in the installed position fixed on the support.

Figure 1b shows a three-dimensional exploded view of the foamed insert and the carrier prior to installation.

Figure 2a-c show sectional views of possible

Embodiments of Be estigungseleraente connected to a carrier.

Figure 2d shows a sectional view of the carrier and insert with channel for improved fixation.

Figure 3 shows a sectional view of the foamed insert fixed on the carrier with Anestigungseleraenten and

inserted edge regions of the insert.

Embodiments of the present invention are described in US Pat

Disclosed in detail below. It will be obvious to those skilled in the art that these are merely exemplary and that the invention may be embodied in alternative forms insofar as they are the basis of the invention. Principles Application fi de. FIG. 1a shows a schematic three-dimensional view of an item of equipment 1 consisting of a carrier 2 with a front side 21 and a back side 22, and with a foamed inserter 3 fixed to the front side 21 with a decorative side 31 and a carrier side 32. the fastening elements 6 are formed. The carrier 2 is a plastic material produced by injection molding. As a foam material for the insert 3 polyurethane foam is provided. The insert 3 is manufactured in a foaming process known from the prior art, separately from the carrier 2.

After hardening of the foamed insert 3, the fixing takes place on the support 2 by the fastening elements 6 being pushed through the recesses 5 (FIG. 1b),

As shown in Figure lb, the recesses 5 extend through the entire depth of the carrier 2 and have a thin groove shape, the fixing of the insert is under external pressure, wherein the soft foam material of the

Fixing elements 6 easily deform and through the

Run recesses 5. The undercut shape of the fasteners 6 prevents detachment of the insert 3 from the carrier 2 during the following processing steps and keeps the insert 3 in a defined position on the carrier 2.

The fastening elements 6 consist of a first

Section 61. which at a fixed to the carrier 2

Insert 3 extend through the recesses 5 of the carrier, and a second portion 62 which projects beyond the back 22 of the carrier 2. The first section 61 serves for

Fixing of the insert 3 in a parallel direction 23 to the front 21 of the carrier 2 and the second portion 62 for fixing in a direction perpendicular thereto 24th

The shape of the first section 61 is similar to one

cuboid web, ^' which in the recesses 5 of the Carrier 2 fits. The insert 3 is formed with two different groups of fasteners 6, the second portion 62 has a cylindrical shape to one and the other a prism with trapezoidal

Footprint resembles,

The schematic sectional views in Figures 2a-c show a portion of the fitting part 1. The fitting part is next to the carrier 2 and the foamed insert 3 of a decorative layer 4, which on the decorative side 31 of

Einleger's 3 is laminating. The fastening elements 6 consist of a first portion 61, which is arranged completely in the recesses 5 in the carrier 2 and a second portion 62 which over the back 22 of the

Carrier 2 protrudes. The first section 61 is designed in the form of a web or cylinder, which terminates flush with the recesses 5 of the carrier 2. The depth of the recesses 5 of the carrier 2 is equal to the depth of the first portion 61. The width of the second portion 62 is at least partially greater than the width of the first

Section 61.

FIGS. 2 a - c show different shapes for the second section 62 of the fastening elements 6

illustrated. A rotationally symmetrical shape is shown in Figure 2a, which may be cylindrical or spherical. The mirror-symmetrical shape, shown in FIG. 2b, corresponds to that of a prism having a trapezoidal base. Conceivable here is of course a geometry in the form of a

Truncated pyramid or an arrowhead. The second portion 62 of a fastener 6 in Figure 2c has no symmetrical shape. The shape is similar to that of a prism with an irregular base, or a latching hook.

The embodiment variant in FIG. 2d includes, in addition to the configuration of the fastening elements 6 on the insert 3, a further shaping in the form of a rib 7. The carrier 2 is so structured that this rib is picked up. A kind of channel in the carrier 2 offers a possibility. This additional rib makes it easier to impress

Fixing elements 6 in the carrier 2 and improves the fixation of the insert 3 on the carrier 2. In this case, the rib 7 in its longitudinal extent parallel to the front of the

Carrier 21 have one or more fasteners 6.

In Figure 3 is a schematic sectional view of a

Equipment element 1 with a carrier 2 and a

foamed insert 3 shown. The arrangement of

Fasteners 6 on the insert 3 is adapted to the structure of the carrier 2. Ideally, the lie

Fasteners 6 between existing undercuts or bulges in the carrier 2. Figure 3 shows next to the

Fastening elements 6 edge regions 9 of the insert 3, which are designed in a suitable manner for receiving the carrier. For this recording grooves 8 are in the. Carrier 2 provided. The edge regions 9 in the grooves 8 provide additional fixation of the soft insert 3 at the transition to the carrier. 2

Reference oak:

1 equipment part

2 carriers

21 front side of the carrier;

22 Rear of the carrier

23 parallel to the front of the carrier 21

24 to the front of the carrier 21 vertical direction

3 depositors

31 Decor side of the insert

32 carrier side of the depositor

4 decorative layer

5 recesses

6 fasteners

61 First section of the attachment

62 Second section of the fastener

7 ribs

8 grooves

9 border areas

Claims

1. Equipment part (1) for a vehicle, which is a carrier

(2) and a foamed inserter (3),

wherein the insert (3) with fastening elements (6) for fixing the insert (3) on the carrier (2) is designed and the Befestigungsseiemente (6) integral with the insert

(3) are formed

wherein the carrier (2) is provided with recesses (5) for receiving the fastening elements (6), wherein

the fasteners comprise a first portion (61) extending from a front side on the insert (3) to the back through the carrier (2) and a second portion (62) extending over the back side {22} of the carrier (2) stands out .. exist ..

2. fitting part (1) according to claim X, wherein the

Fixing elements (6) an undercut form

exhibit .

3. fitting part (1) according to claim 1 or 2 wherein the first portion 61 of the fastening elements 6 have a greater depth, in particular equal to the depth of the recesses 5 of the carrier 2.

4. fitting part (1) according to one of the above

Claims, wherein the width of the first portion (61) of the fastening elements (6) is smaller than that

average depth of the inserter (3).

5. fitting part (1) according to one of the preceding

Claims, wherein the second portion (62) of the

Fasteners (6) a mirror-symmetric,

in particular has a spherically symmetric shape.

6. fitting part (1) according to one of the above

Claims, wherein the second portion (62} of the Fastening elements {6) has a configuration which makes it possible to fold over the fastening elements 6 on the rear side {22) of the carrier (2),

7. Equipment part (1) according to one of the above

Claims, wherein the fastening elements (6) are arranged on ribs (7).

8. fitting part (1) according to one of the preceding

Claims, wherein the carrier (2) has grooves (8) into which the edge regions (9; of the insert (3) are inserted.

9. fitting part (1) according to one of the preceding

Claims, wherein a padded decorative layer (4) is provided.

10. Equipment part (1) according to any one of claims 1-8, wherein one with the insert (3) and / or the carrier (2) laminated decorative layer (4) is provided.