JP2008013057A - Lower structure of vehicle body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide lower structure of a vehicle body capable of covering a clearance of the vehicle body formed in front and rear of a wheel house from a lower side in the vertical direction of the vehicle body better in appearance. <P>SOLUTION: In the under-body cover structure 10, a lower front wall part 24A of a side member outer panel directed outside in the car cross direction on a rear side of the wheel house 30 and a lower part 32B of a rear end of a fender panel 32 are separately arranged with a clearance G. This clearance G is covered from a lower side in the vertical direction of the vehicle body by an undercover part 42 extended backward from a fender liner covering the wheel from the upper side in the vertical direction of the vehicle body in the wheel house 30. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lower body structure near a wheel house, for example.

A structure is known in which an outer end portion of a fender liner in the vehicle width direction is sandwiched between a side edge portion of a wheel arch and an arch molding in a fender panel (see, for example, Patent Document 1).
JP 2001-180393 A

  However, the conventional structure as described above is a covering structure with a fender liner in the wheel house, and the covering of the gaps in the vehicle body on the front side or the rear side of the wheel house has not been considered.

  An object of the present invention is to obtain a vehicle body lower structure that can cover the gap between the vehicle bodies formed before and after the wheel house from the lower side in the vehicle body vertical direction.

  The vehicle body lower part structure according to the invention of claim 1 includes a wall portion facing outward in the vehicle width direction on the front side or rear side of the wheel house, a fender panel positioned on the vehicle width direction outer side of the wall portion, and the wheel house. And a covering portion that extends from a fender liner that covers the wheel from the upper side in the vehicle body vertical direction and covers a gap between the wall portion and the fender panel from the lower side in the vehicle body vertical direction.

  In the vehicle body lower part structure according to the first aspect, the wall portion and the fender panel are located on the front side or the rear side of the wheel house with their lower ends in the vehicle body vertical direction spaced apart from each other in the vehicle width direction. The gap between the wall portion and the fender panel is covered from the lower side in the vertical direction of the vehicle body with a covering portion provided on the fender liner. As a result, the gap between the wall portion and the fender panel is covered with a covering portion that continues from the fender liner that covers the wheel house from the lower side of the vehicle body in the vertical direction of the vehicle body (the wheel axis side). It looks better than the configuration.

  Thus, in the vehicle body lower part structure according to the first aspect, the gap of the vehicle body can be covered with a good appearance from the lower side in the vehicle vertical direction on the front side or the rear side of the wheel house. In addition, there is no restriction on the shape and manufacturing of the main body member, as in the configuration including a covering portion extending from the fender panel to the wall portion.

  The vehicle body lower part structure according to the invention described in claim 2 includes a vehicle body opening for passenger getting on and off, and an outer member including a wall portion facing the vehicle width direction outside between the vehicle body opening and the wheel house, A fender panel positioned on the outer side in the vehicle width direction with respect to the wall portion of the outer member, and a fender liner that covers a wheel from the upper side in the vehicle body vertical direction in the wheel house, and a gap between the wall portion and the fender panel is provided. And a covering portion that covers the vehicle body in the vertical direction.

  In the vehicle body lower part structure according to claim 2, the wall portion of the outer member forming the vehicle body opening for occupant getting on and off is located between the vehicle body opening and the wheel house, and the wall portion of the outer member and the fender panel Is located on the front side or the rear side of the wheel house with the lower ends of the vehicle body in the vertical direction spaced apart from each other in the vehicle width direction. The gap between the wall portion of the outer member and the fender panel is covered from the lower side in the vehicle body vertical direction by a covering portion provided on the fender liner. As a result, the gap between the wall portion of the outer member and the fender panel is covered with a covering portion continuous from the fender liner that covers the wheel house from the lower side of the vehicle body in the vertical direction (the wheel axis side). .

  Thus, in the vehicle body lower part structure according to the second aspect, the gap of the vehicle body can be covered with a good appearance from the lower side in the vehicle vertical direction on the front side or the rear side of the wheel house. For example, unlike the configuration including a covering portion extending from the fender panel to the wall portion, there is no restriction on the shape and manufacturing of the main body member.

  A vehicle body lower part structure according to a third aspect of the invention includes an outer member that includes a wall portion that is positioned on the front side or the rear side of the wheel house and forms a vehicle body skeleton at an outer end in the vehicle width direction, and the wall portion of the outer member. A fender panel located on the outer side in the vehicle width direction, and a fender liner that covers the wheel from the upper side in the vehicle body vertical direction in the wheel house, and the gap between the wall portion and the fender panel is located on the lower side in the vehicle vertical direction And a covering portion covering from the above.

  In the vehicle body lower structure according to claim 3, the wall portion of the outer member constituting the vehicle body skeleton (for example, a pillar or a rocker) at the outer end in the vehicle width direction is located on the front side or the rear side of the wheel house. The wall portion and the fender panel are located on the front side or the rear side of the wheel house with their lower ends in the vehicle body vertical direction spaced apart from each other in the vehicle width direction. The gap between the wall portion of the outer member and the fender panel is covered from the lower side in the vehicle body vertical direction by a covering portion provided on the fender liner. As a result, the gap between the wall portion of the outer member and the fender panel is covered with a covering portion continuous from the fender liner that covers the wheel house from the lower side of the vehicle body in the vertical direction (the wheel axis side). .

  Thus, in the vehicle body lower part structure according to the third aspect, the gap of the vehicle body can be covered with a good appearance from the lower side in the vehicle vertical direction on the front side or the rear side of the wheel house. For example, unlike the configuration including a covering portion extending from the fender panel to the wall portion, there is no restriction on the shape and manufacturing of the main body member.

  A vehicle body lower structure according to a fourth aspect of the invention is the vehicle body lower structure according to any one of the first to third aspects, wherein the inner end of the covering portion in the vehicle width direction is more vehicle-shaped than the wall portion. It is located inside in the width direction.

  In the vehicle body lower part structure according to the fourth aspect, since the inner end in the vehicle width direction of the covering portion is located on the inner side in the vehicle width direction than the wall portion, the gap between the wall portion and the fender panel is covered with better appearance.

  As described above, the vehicle body lower part structure according to the present invention has an excellent effect that it can cover the gaps of the vehicle body from the lower side in the vehicle vertical direction on the front side or the rear side of the wheel house.

  An underbody cover structure 10 as a lower body structure according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. It should be noted that arrow FR, arrow UP, arrow IN, and arrow OUT, which are appropriately shown in each figure, respectively indicate the forward direction (traveling direction), the upward direction, the inner side in the vehicle width direction, and the vehicle width to which the underbody cover structure 10 is applied. The direction outside is shown.

  FIG. 3 is a side view showing a schematic configuration of the automobile 12 to which the underbody cover structure 10 is applied. As shown in this figure, in the automobile 12, a vehicle body opening 14 for passenger getting on and off is opened at the outer end in the vehicle width direction (in FIG. 3, illustration of a door for opening and closing the vehicle body opening 14 is omitted). is doing). The vehicle body opening 14 is surrounded by a front pillar 16, a center pillar 18, a rocker 20, and a roof side rail 22 each forming a vehicle body skeleton (closed cross section).

  In this automobile 12, the outer wall at the outer end in the vehicle width direction of the front pillar 16, the center pillar 18, the rocker 20, and the roof side rail 22 is a large outer part that is a common outer member (also referred to as a side outer panel). 24. That is, the cylinder outer 24 is a vehicle body skeleton element in which a vehicle body opening 14 (a corresponding hole) is formed. Further, the cylinder outer 24 also forms a vehicle body opening located at a rear portion of the vehicle body (not shown) (behind the center pillar 18).

  Further, the front portion of the automobile 12 mainly from the front pillar 16 is a front fender 26, and the front fender 26 is provided with a wheel house 30 in which front wheels 28 are disposed. The fender panel 32 forming the outer plate (design surface) of the front fender 26 has a wheel house 30 opened outward in the vehicle width direction below the wheel arch 34 formed in a substantially arc shape in a side view. Thus, the steering of the front wheels 28 (according to the advancement of the wheel house 30) is allowed.

  The rear end portion 32A of the fender panel 32 covers the front end portion of the outer outer 24, that is, the front pillar lower 16A (and the front end of the rocker 20), which is the lower portion of the front pillar 16, from the outside in the vehicle width direction. A rear end lower portion 32 </ b> B in the rear end portion 32 </ b> A of the fender panel 32 is located between the vehicle body opening 14 and the wheel house 30. Therefore, as shown in FIG. 1, the portion facing the rear end lower portion 32 </ b> B of the fender panel 32 in the cylinder outer 24 in the vehicle width direction, that is, the portion located between the vehicle body opening 14 and the wheel house 30 in the cylinder outer 24, The outer outer lower wall 24 </ b> A corresponding to the wall in the present invention is used. In this embodiment, the outer outer lower wall portion 24A of the outer cylinder constitutes the lower end of the front pillar lower 16A (the connecting portion with the rocker 20).

  In this embodiment, as shown in FIG. 2, a garnish 36 as a design part is attached to the lower part of the rear end lower part 32 </ b> B of the fender panel 32. As shown in FIG. 1, the garnish 36 is made of a resin material, and is locked to a rear end lower portion 32B of the fender panel 32 with a clip 38 to cover the rear end lower portion 32B from the outside in the vehicle width direction. The garnish 36 is configured to have a curved surface such that a design surface 36A facing outward in the vehicle width direction is continuous with a portion of the rear end portion 32A of the fender panel 32 excluding the rear end lower portion 32B. Further, the front edge 36 </ b> B of the garnish 36 in the longitudinal direction of the vehicle body forms a rear lower end portion of the wheel arch 34. Further, as shown in FIG. 1, the lower end of the garnish 36 is a lower wall 36 </ b> C substantially along a horizontal plane.

  Furthermore, the underbody cover structure 10 includes a fender liner 40 disposed in the wheel house 30 as shown in FIG. The fender liner 40 is formed in a substantially arc shape corresponding to the wheel arch 34 in a side view and is formed in a substantially rectangular shape that covers the front wheel 28 in a plan view (not shown). Covering from above and behind, mud, muddy water, pebbles and the like are prevented from hitting a fender apron (not shown). In this embodiment, the fender liner 40 is made of a resin material.

  An under cover portion 42 as a covering portion extends rearward from the rear lower end 40A of the fender liner 40. As shown in FIG. 1, the under cover portion 42 has a gap G formed between the lower outer wall 24 </ b> A of the outer outer 24 and the rear lower portion 32 </ b> B of the fender panel 32 from the lower side in the vehicle vertical direction. Covering. Specifically, the under cover portion 42 is formed in a substantially U-shaped cross section that opens upward in the vehicle body vertical direction, and has a concave portion 44 into which the lower end 24B of the bottom outer wall 24A of the outer cylinder is inserted, and a vehicle in the concave portion 44. A flat plate portion 46 extending from the upper end of the standing wall 44A located on the outer side in the width direction to the outer side in the vehicle width direction and reaching the lower portion of the lower wall 36C of the garnish 36 is configured as a main portion.

  The under cover portion 42 has the lower end 24 </ b> B of the lower outer wall 24 </ b> A inserted in the concave portion 44, so that the inner end 42 </ b> A in the vehicle width direction is positioned on the inner side in the vehicle width direction with respect to the outer outer portion 24. Further, the outer end 42B of the under cover portion 42 is close to (contacts) directly below the lower wall 36C of the garnish 36 as described above. Further, as shown in FIG. 2, the rear end 42 </ b> C of the under cover portion 42 protrudes slightly rearward from the rear end lower portion 32 </ b> B of the garnish 36, that is, the fender panel 32.

  As a result, in the underbody cover structure 10, the gap G between the outer outer lower front wall portion 24A and the lower rear end portion 32B is covered from the lower side in the vehicle vertical direction by the undercover portion 42 over the entire length in the vehicle longitudinal direction. Cover). The under cover portion 42 described above is integrally formed with the fender liner 40 by resin molding.

  Next, the operation of this embodiment will be described.

  In the underbody cover structure 10 having the above-described configuration, the gap G between the lower outer wall 24A of the outer cylinder 24 and the rear lower portion 32B of the fender panel 32 is covered by the undercover section 42 from below in the vehicle vertical direction. The gap G is not exposed so as to be visible, so that the appearance is good.

  Here, in the underbody cover structure 10, the under cover portion 42 extending from the rear lower end 40 </ b> A of the fender liner 40 that covers the front wheel 28 in the wheel house 30 covers the gap G. In other words, Since the covering member and the covering member in the gap G are continuously continuous, the appearance is good. In particular, in the underbody cover structure 10, the inner end 42 </ b> A of the undercover portion 42 is positioned on the inner side in the vehicle width direction with respect to the lower end 24 </ b> B of the cylinder outer 24, and the outer end 42 </ b> B of the undercover portion 42 reaches the lower wall 36 </ b> C of the garnish 36. Therefore, both the edges of the gap G in the vehicle width direction are covered and the appearance is further improved.

  Further, here, as a structure covering the gap G, for example, an under cover portion extending from the rear end lower portion 32B of the fender panel 32 as in the under body cover structure 100 according to the first comparative example shown in FIG. 102, or an under cover portion 112 extending along the lower wall 36C of the garnish 36, such as the under body cover structure 110 according to the second comparative example shown in FIG. 4B. However, the underbody cover structure 10 has the following advantageous effects with respect to these configurations.

  That is, in the first comparative example, since the drawing depth of the fender panel 32 integrally provided with the under cover portion 102 is increased, restrictions such as deterioration of formability due to press working of the fender panel 32 occur. In the underbody cover structure 10, good formability can be maintained without restricting the formability of the fender panel 32. In the second comparative example, the size of the garnish 36, which is a relatively small part, is increased and the cost of the shaping die is greatly increased. However, the underbody cover structure 10 is sufficiently larger than the undercover portion 42. In addition, since the under cover portion 42 is integrated with the large-sized fender liner 40, the influence on the mold cost is small.

  Further, in both the first and second comparative examples, a parting occurs between the vehicle width direction inner ends 102A, 112A of the undercover portions 102, 112 and the lower outer wall portion 24A of the outer cylinder, which improves the appearance. However, in the underbody cover structure 10, the inner end 42 </ b> A of the undercover portion 42 is wider than the lower end 24 </ b> B in the underbody cover structure 10. A good appearance can be obtained as described above by being positioned inward. The concave portion 44 including the inner end 42 </ b> A of the undercover portion 42 can be configured, for example, by extending the clip locking portion to the apron or the like in the fender liner 40 with the substantially same cross section extending backward.

  In the above embodiment, the example in which the underbody cover structure 10 is applied between the wheel house 30 of the front fender 26 and the vehicle body opening 14 for occupant getting on and off is shown, but the present invention is not limited to this, For example, the present invention may be applied between a wheel house of a rear fender and a vehicle body opening for getting on and off the rear seat.

It is front sectional drawing which shows the principal part of the underbody cover structure which concerns on embodiment of this invention. It is a perspective view which shows the principal part of the underbody cover structure which concerns on embodiment of this invention. It is a side view which shows the front part of the motor vehicle to which the underbody cover structure concerning embodiment of this invention was applied. It is a figure which shows the underbody cover structure which concerns on the comparative example with embodiment of this invention, Comprising: (A) is front sectional drawing which shows a 1st comparative example, (B) is front sectional drawing which shows a 2nd comparative example. .

Explanation of symbols

10 Underbody cover structure (underbody structure)
14 Body opening 16 Front pillar (body frame)
24 Cymen outer (outer member)
24A Cymbal outer lower front wall (wall)
28 Front wheels
30 Wheelhouse 32 Fender panel 40 Fender liner 42 Under cover (cover)

Claims (4)

A wall portion facing outward in the vehicle width direction on the front side or rear side of the wheel house, and
A fender panel located outside the wall in the vehicle width direction;
A covering portion that extends from a fender liner that covers the wheel from the upper side in the vehicle body vertical direction in the wheel house, and covers a gap between the wall portion and the fender panel from the lower side in the vehicle body vertical direction,
Body lower structure with An outer member that includes a vehicle body opening for occupant getting on and off and includes a wall portion that faces the vehicle width direction outside between the vehicle body opening and the wheel house;
A fender panel positioned on the outer side in the vehicle width direction with respect to the wall portion of the outer member;
A covering portion that extends from a fender liner that covers the wheel from the upper side in the vehicle body vertical direction in the wheel house, and covers a gap between the wall portion and the fender panel from the lower side in the vehicle body vertical direction,
Body lower structure with An outer member including a wall portion that is positioned on the front side or the rear side of the wheel house and that constitutes the vehicle body skeleton at the outer end in the vehicle width direction;
A fender panel positioned on the outer side in the vehicle width direction with respect to the wall portion of the outer member;
A covering portion that extends from a fender liner that covers the wheel from the upper side in the vehicle body vertical direction in the wheel house, and covers a gap between the wall portion and the fender panel from the lower side in the vehicle body vertical direction,
Body lower structure with   The vehicle body lower structure according to any one of claims 1 to 3, wherein an inner end of the covering portion in the vehicle width direction is located on an inner side in the vehicle width direction than the wall portion.

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