Front structure for a motor vehicle

The invention relates to a front structure for a seen with motor vehicle provided in the direction of travel front wings, with a spaced below the fenders arranged body part and a between the Body part and the wings arranged deformation device.

Such a front end, for example, from DE 29 34 060 A1. The deformation means this front structure has a cross-sectionally semi-circular curved Sheet between the inner edge of the mudguard and the underlying lying body part. Strikes in an accident the A pedestrian's head vertically on the wing, takes the Deformation device on the impact energy, whereby the is to be head-impact soft.

Furthermore, from EP 129 928 B1, a front end 1 become known, in which the deformation device also a semi-circular, the fender vertical support end Sheet and a between the body part and a Side portion of the fender disposed supporting part has.

A disadvantage of the known Vorderbauten however their low stiffness in the operation of the vehicle, which results from the requirement for vertical compliance the fender results. By leaning on the Fender can in the worst case of a fender arranged between the fenders hood trigger. furthermore is disadvantageous in the known Vorderbauten that engine noise between the fender and the body part can penetrate to the outside.

Furthermore, from EP 1132263 A1 a mudguard assembly known for a motor vehicle, in which a company affiliated with the fender panel several individual tabs than deformation members. The deformation members containing sheet is an adhesive bead with connected the wing and supports this from the side. A disadvantage of the mudguard assembly, however, is that a inaccurate Kleberauftragung to a deformation of the fender can lead. Further urging the mudguard assembly between the tabs engine noise to the outside.

The invention is based on the problem, a to make front structure of the aforementioned type so that he designed sufficiently resilient in a pedestrian impact is, however, in operation, having a sufficient stability.

This problem is inventively solved by that the deformation means a flexible, plastic has crafted filler and that the filler a gap between the body part and the fender closes.

This design allows the stiffness the deformation device at the individual points of the wing by a corresponding configuration of the filler set to. The filler can the fender support surface and thus occurring during operation of the motor vehicle absorb forces. An additional panel to be arranged to prevent leakage of engine noise between the fender and the body part is due to the invention not required, as the filler with a corresponding choice of material can be designed acoustic and from the Deformation elements generated gap between body part and fender covers.

In the simplest case, therefore, the deformation device exclusively on the filling. to further Simplify the setting of the proposed stiffness the deformation device transmits it in an advantageous Development of the invention with, if the deformation device Deformation elements made of sheet metal having and when the filler between the deformation members is arranged. This design can be in addition to filling the made of sheet metal deformation members Arrange to designated locations where a exclusive support by the filler inadequate is.

To further improve the sound insulation of Area between the fender and the body part of the Front structure according to the invention contributes to it, when the Filler seen in the direction of travel over the entire length of the Fender covers.

requires the installation of the front end according to the invention particularly inexpensive if the filler is manufactured in one piece.

The filler piece can according to an advantageous development the invention provides a transmitting sound very highly to insulate if the filling on its on the mudguard having adjacent side a layer foam rubber.

To further simplify the assembly of the invention Front structure contributes to it, when the filling with the body part and / or the wing is bonded.

An abutment of the fender to a between Fenders arranged hood through a lean or a Wash the vehicles is in accordance with another advantageous simply avoid development of the invention, if the filling the fender supports laterally. In order to takes the filling side in the fenders introduced Forces. For this purpose, the filling is at least partially between the side region of the wing and the body part to arrange.

A leakage of engine compartment gases between the fender and the body part may be according to another simply avoid advantageous development of the invention, when the filling the space between the fender and the Body part locks gas-proof.

The determination of the stability of the filling when a head impact on the fender is according to a another advantageous development of the invention, particularly Just when the filler comprises deformation webs. The deformation webs can honeycomb example or formed segment of a circle or a vertical buckling rods be.

The deformation webs can be referred to another advantageous embodiment of the invention with very large provided dimensions and to the side portion of the fender lead when a deformation webs comprising Direction Section the filler between screw connection points with the Mudguard and / or the body part is arranged.

The filler has, according to another advantageous Development of the invention in a horizontal direction high stability and an almost arbitrarily in the vertical direction adjustable on stability when the deformation webs vertically inclined from the fenders to the body part and horizontally out to the side portion of the fender are.

The filler can be, according to another advantageous Development of the invention, at least in some areas provided with high elasticity, when the filler an undulating structure, wherein undulations of Filler parallel to the adjacent to the edge of the wing are arranged.

We make the assembly and disassembly of the fender constructively particularly simple if the filling with the body part and / or the wing is screwed.

To further simplify the assembly of the invention Front structure contributes to it, if the filler to Holder from being laid in an engine compartment components provided holding means has. In the simplest case, the Holding means formed as brackets. In this blank brackets For example, wiring harnesses and control cables engage.

Various components can be present in the novel easily accommodate front structure if the filling a comprising of a diaphragm chamber concealed. This design can be, for example, Bowden cables or harnesses put in the filler.

The installation of the patch requires according to a another advantageous development of the invention, a particularly little effort, if the aperture of a film hinge connected to a lateral boundary of the chamber is.

The stiffness of the deformation device can According to another advantageous development of the invention, simply set when the deformation members a having U-shaped section, with its base are attached to the fender and having legs on the body part to assign.

Plastic deformation of the deformation device can be according to another advantageous development simply avoid the invention, when the the Base ends facing away from the legs of the U-shaped portion the deformation members parallel to the body part Connect guided portions and when parallel to the out portions on the body part Attributing Connecting leg. The guided parallel to the fender Sections allow a slight elastic Compliance of the deformation members.

be occurring during a head impact forces According to another advantageous development of the invention, unaffected by the lateral support of the fender damp when the deformation members the fender solely supported vertically. The side of the fender supporting filler does not affect the vertical compliance the fender.

The deformation elements can be according to another advantageous embodiment of the invention, particularly inexpensive, such as by spot welding to the Fender mount if the deformation elements at one, arranged the hood facing limiting the fenders Water channel are fixed. Such a water channel of the hood obscured, making it in the mounted state of the Motor vehicle can not be seen.

The front structure of the present invention designed to engage constructively particularly simple if the deformation elements as single, fixed to the fender and the body part Baueile are formed. Furthermore, allowing the production the deformation members as individual members have particularly simple determination of stability of the deformation device.

The invention allows various embodiments to. To further clarify its basic principle, several thereof are shown in the drawing and subsequently described. The drawing shows in<dl tsize="7"><dt>Fig. 1</dt><dd>a right portion of an inventive The front structure of a motor vehicle in cross section,</dd><dt>FIG. 2</dt><dd>a sectional view through the inventive Front part of Figure 1 along the line II - II,</dd><dt>Fig. 3</dt><dd>a perspective view of a Fender of the front end according to the invention prior to assembly,</dd><dt>Fig. 4</dt><dd>a perspective view of a further embodiment of the invention Front building,</dd><dt>Fig. 5</dt><dd>an alternative embodiment of Filler from Figure 4,</dd><dt>Fig. 6</dt><dd>an alternative embodiment of Filler from Figure 4,</dd><dt>Fig. 7</dt><dd>an enlarged sectional view through the front section of Figure 4 along the line VII - VII,</dd><dt>Fig. 8</dt><dd>an enlarged sectional view through the front section of Figure 4 along the line VIII - VIII, </dd><dt>Fig. 9</dt><dd>an enlarged sectional view through the front section of Figure 4 along the line IX - IX,</dd><dt>Fig. 10</dt><dd>an enlarged sectional view through the front section of Figure 4 along the line X - X,</dd><dt>Fig. 11</dt><dd>a cross-section through a further embodiment the filler of FIG. 4</dd></dl>

1 shows a right portion of a front structure 1 of a motor vehicle in cross section and a to 2. to the front structure 1 subsequent windshield The front structure 1 has a pivot on a hinge 3 mounted hood 4, which shows a schematic in its indicated position illustrated internal combustion engine 5 of the vehicle covers. Laterally, the front structure 1 of a fender 6 limited. The fender 6 schematically on a likewise Body part 7 shown by a deformation device 8 attached. At its adjoining the hood 4 edge has the fender 6 a water channel 9. A lateral boundary the hood 4 protrudes into the water channel. 9

The deformation device 8 has a manufactured from sheet metal Deformation member 10 and a manufactured plastic Filler 11. The filler 11 supports the side portion 6 of the fender to the body part 7 from. The deformation member 10 is attached to the bottom of the water channel 9 and supported vertically on the fender 6 acting Forces on the body part 7 from. The filler 11 is in a space between the fender 6 and the body part 7 glued and gives the fender 6, the necessary lateral Rigidity. At the same time, it seals the space of Internal combustion engine 5 from escaping gases and sound from.

Figure 2 shows the front end of Figure 1 in a Sectional view taken along the line II - II. It should be recognize that several individual deformation members 10 between the fender 6 and the cover 4 are fixed. The deformation members 10 are spaced apart. For simplification the drawing is the filler piece 11 of Figure 1 not shown. The deformation members 10 each have a U-shaped portion 12. The base of the U-shaped Portion 12 is at the bottom of the water channel 9 of the Fender 6 is fixed, for example by spot welding. At the fender 6 opposite ends of the legs 13 of the U-shaped portion 12 are parallel to the body part 7 guided sections 14. To parallel to the Body part guided sections 14 close on to the body part 7 converging legs 15 at whose free Ends are connected with the body part 7th

Figure 3 shows a perspective sectional view a portion of the wing 6 of Figures 1 and 2 with the deformation elements attached thereto 10. To Simplification of the drawing is the filler piece 11 of Figure 1 not shown. It can be seen that the deformation members 10 exclusively in the area of ​​the water channel 9 the fender 6 are arranged vertically and thus in the Fender dampen 6 forces introduced. Such forces may occur in a head impact of a pedestrian.

Figure 4 shows in perspective another embodiment of the front end 16 in which a deformation device 34 has a filling 17 made of plastic and a gap between a body member 18 and a Fender 19 closes from the engine compartment side of view. The filler 17 has a section 20 with deformation webs 21 and a portion 22 with corrugations 23 on. The Deformation webs 21 are diamond-shaped each other and vertically inclined and extend horizontally to close to the inside of the fender 19th

Figure 5 shows an alternative embodiment of Filler 17 from Figure 4 with the deformation webs 21 having section 20. The deformation segments 21 are here arranged vertically and thus designed as buckling rods. at vertical load buckling deformation webs 21 and therefore allow yielding of 4 shown in Figure Fender 19 in a head impact of a pedestrian. figure 6 shows a further embodiment of the deformation webs 21 containing portion 20 of the patch 17 of Figure 4. The deformation segments 21 are arranged here a circular segment. The trained or circular segment as buckling rods arranged deformation webs 21 can alternatively or in addition to those shown in Figure 4, diamond-shaped arranged deformation webs 21 can be provided.

Figure 7 shows an enlarged sectional view by the filler 17 from Figure 4 with adjacent areas of the fender 19 and the body part 18 along the line VII - VII. Here is can be seen that the undulations 23 the undulating portion 22 of the patch 17 parallel arranged to the fender 19 facing limit are. These corrugations 23 enables folding of the filler 17 at a head impact of a pedestrian on the fender 19th

Figure 8 shows an enlarged sectional view through the front structure 16 of Figure 4 along the line VIII - VIII in a fixing of the wing 19 on the field Body part 18. The wing 19 is integral with a to run to the body part 18 deformation member 24 manufactured. The deformation member 24 is connected to the body part 18 bolted. The filler 17 is a clip 25 attached to the deformation member 24th

Figure 9 shows an enlarged sectional view by the filler 17 of Figure 4 along the line IX - IX in its attachment to the body part 18. In this region It can be seen that the filler piece 17 an arc-shaped Wall has 26 and the deformation webs 21 within the arcuate Wall are arranged 26th The arcuate wall 26 is bolted to the body part 18 and is at its the fender 19 side supporting region with a Layer foam rubber 27 glued.

Figure 10 shows an enlarged view in a sectional view through the front structure 16 of Figure 4 along the line X - X, that a clamp-shaped retaining means 28 integral with the is made filler 17th The holding means 28 supports a in the front section 16 laid wiring harness 29 or Bowden.

Figure 11 shows a cross section through a filling 30, which is different from that of Figure 4 only in a chamber 31 for receiving any, Components not shown closed by a shutter 32 is. The aperture 32 is connected via a film hinge 33 on the Filler hinged 30 and can be connected to this lock.

LIST OF REFERENCE NUMBERS

<dl tsize="1" compact="compact"><dt>1</dt><dd>Front part</dd><dt>2</dt><dd>windscreen</dd><dt>3</dt><dd>hinge</dd><dt>4</dt><dd>Hood</dd><dt>5</dt><dd>Internal combustion engine</dd></dl><dl tsize="2" compact="compact"><dt>6</dt><dd>fender</dd><dt>7</dt><dd>Krosserieteil</dd><dt>8th</dt><dd>deformation device</dd><dt>9</dt><dd>water channel</dd><dt>10</dt><dd>deformation member</dd></dl><dl tsize="2" compact="compact"><dt>11</dt><dd>filling</dd><dt>12</dt><dd>section</dd><dt>13</dt><dd>leg</dd><dt>14</dt><dd>section</dd><dt>15</dt><dd>leg</dd></dl><dl tsize="2" compact="compact"><dt>16</dt><dd>Front part</dd><dt>17</dt><dd>filling</dd><dt>18</dt><dd>Krosserieteil</dd><dt>19</dt><dd>fender</dd><dt>20</dt><dd>section</dd></dl><dl tsize="2" compact="compact"><dt>21</dt><dd>deformation web</dd><dt>22</dt><dd>section</dd><dt>23</dt><dd>curl</dd><dt>24</dt><dd>deformation member</dd><dt>25</dt><dd>clip</dd></dl><dl tsize="2" compact="compact"><dt>26</dt><dd>wall</dd><dt>27</dt><dd>foam rubber </dd><dt>28</dt><dd>holding means</dd><dt>29</dt><dd>harness</dd><dt>30</dt><dd>filling</dd></dl><dl tsize="2" compact="compact"><dt>31</dt><dd>chamber</dd><dt>32</dt><dd>aperture</dd><dt>33</dt><dd>film hinge</dd><dt>34</dt><dd>deformation device</dd></dl>