JP2016022784A - Wheel house inner structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheel house inner structure capable of ensuring the rigidity strength of a wheel house inner part having a recessed portion with a simple structure.SOLUTION: A wheel house inner structure of the present invention comprises: a wheel house inner part 11 including a longitudinal wall 17 and a protruding lateral wall 19 and disposed in a vehicle front-rear direction; a joined portion 21 formed in lower end portions of the longitudinal wall 17 and the lateral wall 19; and a recessed portion 25 formed by recessing a longitudinal wall portion and a lateral wall portion above the joined portion 21 from a portion halfway along the wheel inner part 11 to one end of the wheel inner part 11, the recessed portion 25 including a first ridge line 29 retreated to outside of a cabin with respect to an intersecting portion 18 in which the longitudinal wall 17 intersects the lateral wall 19 and extending to one end of the wheel inner part 11; a second ridge line 31 provided in a sidewall portion right on the joined portion 21 to extend from an end of the first ridge line 29 along the joined portion 21 at a position retreated to outside of the cabin with respect to the joined portion 21; and a recessed wall portion 27 including a first curved portion 35 whose upward projected portion faces a direction of inside of the cabin and a second curved portion 37 whose downward projected portion faces a direction of the outside of the cabin, occupying a recessed region of the recessed portion 25, and formed so that the first curved portion 35 constitutes the first ridge line 29 and the second curved portion 37 constitutes the second ridge line 31.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a wheel house inner structure in which a recess is formed in a wheel house inner.

In a car (vehicle) having a rear seat such as a second seat behind a front seat (first seat) such as a wagon, the rear seat is often disposed adjacent to the rear wheel house inner.
In automobiles, it is required to make as much space as possible in the passenger compartment. In view of this, it is conceivable to increase the seat width of the rear seat to enlarge the space in the passenger compartment.

For this purpose, a recess recessed outside the vehicle compartment is formed at the front of the rear wheel house inner in the vehicle front-rear direction, and the rear seat is arranged inside the recess. It is possible to approach the inside. Of course, the recess is recessed to a position where a clearance that does not interfere with the tire can be secured.
Therefore, as disclosed in Patent Document 1, it is conceivable that the entire one side of the wheel house inner in the vehicle front-rear direction is recessed outside the vehicle compartment.

However, if the outer shape of one side of the wheel house inner is changed, the position at which the wheel house inner and the floor panel are joined differs greatly from the original wheel house inner. This affects the way the wheel house inner and the floor panel are joined, and the floor panel must be changed.
Therefore, the part to be joined (the part to which the floor panel etc. is joined) at the lower end of the wheel house inner is left unchanged and the part (one side) located above the part to be joined is recessed outside the vehicle compartment. It is conceivable to form a recess.

JP-A-10-250625

However, if the recess is simply formed, the ridge line that secures the rigidity strength of the wheel house inner is impaired, and the rigidity strength of the portion where the recess is formed is reduced. Since the wheel house inner is a part arranged at the base of the pillar member from the floor panel toward the roof, such a decrease in rigidity strength also causes a decrease in the rigidity of the entire vehicle body.
In such a case, in general, it is dealt with by adding a reinforcing member separately. However, in this case, it becomes difficult to secure the recessed space because the reinforcing member is added, and the purpose of expanding the initial vehicle interior space cannot be achieved. .

  Accordingly, an object of the present invention is to provide a wheel house inner structure that can ensure the rigidity and strength of a wheel house inner having a recess with a simple structure.

  An aspect of the present invention includes a semicircular vertical wall disposed in a vehicle interior and a semicylindrical horizontal wall protruding outward from the arcuate edge of the vertical wall in the vehicle longitudinal direction. Of the wheel house inner, the joined portion formed at the lower end of the vertical wall and the horizontal wall, and the vertical wall on the upper side of the joined portion of the wheel house inner from the middle in the vehicle longitudinal direction to one end. A wheel house inner structure including a recessed portion in which a portion and a lateral wall portion are recessed outside the vehicle compartment, wherein the recessed portion is disposed at a position retracted outside the vehicle compartment from an intersection where the vertical wall and the horizontal wall intersect. The first ridge line extending continuously to one end of the wheel house inner and the lateral wall portion directly above the joined portion is disposed at a position retracted outside the vehicle compartment from the joined portion, and is connected to the end of the first ridge line. A second ridge line extending along the joined portion and the upper part Convex has a first bend facing the interior of the car, the lower part has a second bend facing the exterior of the car and occupies a recessed part of the concavity, and the first bend forms the first ridge The second bent portion has a recessed wall portion formed so as to form the second ridge line (Claim 1).

Preferably, between the 1st bent part and the 2nd bent part of a dent wall part, the said curved part shall be formed by the curved surface which continues (Claim 2).
Preferably, the vertical wall of the wheel house inner has a bead portion that continues to the second ridge line and extends to the other end of the wheel house inner along the joined portion (claim 3).

According to the present invention, the rigidity strength around the recess is such that the first arch-shaped ridge line formed on the upper side of the recess, the second ridge line just above the bonded portion formed on the lower side of the recess, and the recessed wall between both ridge lines The portion (the bottom of the recess) is sufficiently secured. Moreover, the rigidity strength of the dent wall itself is also enhanced by two types of bent parts.
Therefore, the wheel house inner can secure sufficient rigidity and strength even if the recessed portion is formed with the bonded portion as it is. In addition, the rigidity and strength that can be secured is a simple structure that only requires the use of a wall that occupies a recessed part, that is, a recessed wall part with curved parts facing up and down in the vehicle interior and exterior. (Claim 1).

  In particular, by making the curved portion formed between the upper and lower bent portions of the concave wall portion continuous by a curved surface, the concave wall portion can easily ensure sufficient rigidity and strength (claim 2). In addition, by providing a bead part connected to the lower ridge line on the vertical wall of the wheel house inner, the periphery of the vertical wall of the wheel house inner is surrounded by the first and second ridge lines and the ridge line formed by the bead part, so high rigidity strength Can be secured (claim 3).

The perspective view which shows the wheel house inner assembled | attached to the vehicle body with a floor panel, a tire, and a vehicle inner wall. The perspective view for demonstrating the part in which a recessed part is formed of a wheel house inner. The perspective view which shows the whole wheel house inner in which the recessed part was formed. Sectional drawing which passes along a recessed part along the AA line in FIG.

Hereinafter, the present invention will be described based on an embodiment shown in FIGS.
FIG. 1 shows the rear side of a vehicle to which the present invention is applied, for example, a wagon car.
The main structure of the wagon car will be described. In FIG. 1, 1 is a vehicle body of a wagon car (vehicle), 3 is a vehicle interior formed in the vehicle body 1, and 5 is a floor panel forming a rear floor of the vehicle interior 3. Reference numeral 7 denotes a rear quarter inner panel that forms a vehicle interior wall of the vehicle body 1, and 9 denotes a rear pillar inner panel (part that forms a rear panel) provided on an upper portion of the rear quarter inner panel 7. A rear wheel house inner 11 (corresponding to the wheel house inner of the present application) is provided at the lower part of the rear quarter inner panel 7. The rear tire 13 is accommodated in the rear wheel house inner 11. A rear seat 15 is installed on the floor panel 5 along with the rear wheel house inner 11.

  As shown in FIGS. 2 and 3, the rear wheel house inner 11 has a semi-cylindrical shape surrounding the rear tire 13 from above. Specifically, the rear wheel house inner 11 includes a semicircular vertical wall 17 disposed in the vehicle interior 3, and a semi-cylindrical horizontal wall protruding from the arc-shaped edge of the vertical wall 17 toward the outside of the vehicle interior. 19. The flange portion 19a formed at the distal end portion of the lateral wall 19 is joined (for example, welded or the like) to an opening edge portion (both not shown) of the semicircular opening portion formed in the rear quarter inner panel 7. Further, a joined piece portion 21 (corresponding to the joined portion of the present application) is formed at the lower ends of the lateral wall 19 to the vertical wall 17 to the lateral wall 19 that are continuous in a C shape. The C-shaped joined piece portion 21 is joined (for example, welded) to an opening edge portion (not shown) of a square notch formed at the vehicle width direction end of the floor panel 5, and the rear tire 13 Cover the upper part (vehicle compartment side) from above.

  In the same car, the seat width of the rear seat 15 (here, the whole including the seat cushion 15a and the seat bag 15b) is increased in order to make room in the passenger compartment 3. For this reason, the rear wheel house inner 11 receives the increased seat width so that the side of the rear cushion 15a and the side of the seat bag 15b wrap around the side of the vehicle in the front-rear direction, here the front. A recess 25 is provided on the surface.

Here, a load F is applied to a region α on the front side in the vehicle front-rear direction of the rear wheel house inner 11 indicated by a one-dot chain line in FIG. 12 to be recessed outside the passenger compartment, and a recess 25 as shown in FIG. Forming. Incidentally, FIG. 12 shows a state before the recess 25 is provided, and FIG. 13 shows a state after the recess 25 is provided.
That is, the concave portion 25 is formed by denting the upper vertical wall portion and the horizontal wall portion from the joined piece portion 21 from the middle of the rear wheel house inner 11 in the vehicle longitudinal direction to the front end (one end) to the outside of the vehicle compartment. A space allowing the end portion of the rear seat 15 is obtained. Of course, the recessed portion 25 is recessed as long as it does not interfere with the rear tire 13.

The rear wheel house inner 11 uses a recessed wall 27 (corresponding to the recessed wall portion of the present application) occupying the bottom of the recessed portion 25 to increase the rigidity and prevent a decrease in the rigidity strength in the recessed portion 25. The structure for ensuring the rigidity is shown in the perspective view of FIG. 3 and the cross-sectional view of FIG. 4 (A-A line in FIG. 3).
Explaining the structure, the concave portion 25 has an arch-shaped ridgeline 29 (corresponding to the first ridgeline of the present application) on the upper side and continuous with the intersection 18 where the vertical wall 17 and the horizontal wall 19 intersect with each other. A straight ridge line 31 (corresponding to the second ridge line of the present application) is provided at a position retracted from the bonded piece portion 21 directly above the bonded piece portion 21 to the outside of the passenger compartment. Of these, the ridge line 29 is disposed at a position retracted from the intersection 18 to the outside of the passenger compartment. That is, the ridge line 29 is continuously disposed up to the front end of the rear wheel house inner 11 in a state where the ridge line 29 is retracted from the intersection 18 to the outside of the vehicle compartment and continues to the ridge line formed by the intersection 18. The ridge line 31 is linearly arranged from the front side end of the ridge line 29 to the rear side end of the recess 25 along the joined piece part 21.

  The recessed wall 27 has a recessed starting point S that forms the end of the recessed portion 25 on the rear side. That is, the dent starting point S is formed by a ridge line extending in the vertical direction that is continuous with the ends of the ridge lines 29 and 31, here, a ridge line extending diagonally forward. The dent wall 27 is formed from the dent start point S to the front end of the rear wheel house inner 11 along the ridge lines 29 and 31, and becomes the region α (FIG. 2). A fan-shaped region surrounded by an arch-shaped ridge line 29 is recessed immediately above.

  Here, as shown in FIG. 13 and FIG. 14, an arch-shaped curved surface portion 35 (corresponding to the first curved portion of the present application) is formed in the upper portion of the recessed wall 27, and the convex portion faces the vehicle interior 3 side. Contrary to this, a curved surface portion 37 (corresponding to the first curved portion of the present application) having a convex portion facing the outside of the passenger compartment is formed. Of these, the curved surface portion 35 is curved so as to draw a shape in which the position of the vertex X of the arc (FIGS. 3 and 4) matches the ridgeline 29, that is, an arch shape. That is, the ridge line 29 is formed from an arc of the curved surface portion 35. Further, the curved surface portion 37 is bent into a shape in which the position of the vertex Y of the arc (FIGS. 3 and 4) coincides with the ridgeline 31, that is, a linear shape. That is, the ridge line 31 is formed from the curved surface portion 37. And the lower end of this curved surface part 37 continues to the corner part 21a which curves toward the exterior of the vehicle compartment just above the to-be-joined piece part 21 (FIGS. 3 and 4). Note that the wall portion between the curved surface portion 35 and the curved surface portion 37 is formed of a curved surface portion where curved surfaces formed by both the curved surface portions 35 and 37 are continuous in order to achieve high rigidity.

  The circumference of the recess 25 is formed by forming an arched ridge line 29 above the recess 25 on the arc surface of the curved surface portion 37 and forming a linear ridge line 31 below the recess 25 on the arc surface of the bent portion 39. , Rigidity is ensured. In particular, around the concave portion 25, the curved surface portion 35 whose convex portion faces the vehicle interior 3 and the curved surface portion 37 whose convex portion faces the outside of the vehicle interior are combined in a C shape, so that further rigidity is expected. Moreover, since the rigidity of the recessed wall 27 is enhanced by the two types of curved surface portions 35 and 37, the rigidity of the recessed portion 25 itself is sufficiently secured.

Therefore, the rear wheel house inner 11 can ensure sufficient rigidity even if the recessed portion 25 is formed on the end side with the bonded piece portion 21 as it is. In addition, the rigidity strength to be secured is only the use of the recessed wall 27 having the upper and lower curved surface portions 35 and 37 whose convex portions face in the opposite direction to the vehicle interior / exterior, which is a wall portion occupying the recessed portion. Simple structure.
In addition, since the recessed wall 27 has the curved surface portions 35, 37 continuous with the curved surfaces of the curved surface portions 35, 37, high rigidity strength can be ensured.

In particular, as shown in FIG. 3, by forming a bead portion 41 at the lower end of the vertical wall 17 of the rear wheel house inner 11 adjacent to the end of the ridge line 31, here the wall portion forming the joined piece portion 21, The wheel house inner 11 can ensure high rigidity and strength.
That is, the bead part 41 is formed by a belt-like groove that extends linearly along the joined piece part 21 while being zigzag, for example. That is, one end of the bead portion 41 overlaps the end of the ridge line 31 at the dent starting point S, and the other end is the rear end of the vertical wall 17 (the rear end of the rear wheel house inner 11 in the vehicle width direction: the other end). It is formed with a groove extending up to. Thereby, the periphery of the vertical wall 17 of the rear wheel house inner 11 is surrounded by the ridgeline formed by the intersection 18, the ridgelines 29 and 31, and the ridgeline formed by the bead portion 41, and high rigidity is obtained. Incidentally, the bead part 41 serves as a bead part which prevents the wrinkle which arises when shape | molding the rear wheel house inner 11 here.

  It should be noted that each configuration and combination thereof in the above-described embodiment is an example, and the addition, omission, replacement, and other changes of the configuration are possible without departing from the spirit of the present invention. Needless to say. Further, the present invention is not limited by the embodiment, and needless to say, is limited only by the “claims”.

1 Car body 11 Rear wheel house inner (wheel house inner)
17 Vertical wall 18 Intersection 19 Horizontal wall 21 Joined piece (joined part)
25 Concave part 27 Concave wall (concave wall part)
29 Ridge Line (First Ridge Line)
31 ridgeline (second ridgeline)
35 Curved surface (1st curve)
37 Curved surface part (second curve part)
41 Bead section

Claims (3)

A wheel house having a semicircular vertical wall arranged in a vehicle interior and a semi-cylindrical horizontal wall protruding outward from the arcuate edge of the vertical wall in the vehicle longitudinal direction. With inner,
A joined portion formed at a lower end portion of the vertical wall and the horizontal wall;
A wheel house inner structure comprising: a concave portion in which the vertical wall portion and the horizontal wall portion on the upper side of the joined portion are recessed outside the vehicle compartment, from the middle in the vehicle longitudinal direction in the wheel house inner to one end,
The recess is
A first ridge line that is disposed at a position retracted outside the vehicle compartment from an intersection where the vertical wall and the horizontal wall intersect, and extends to one end of the wheel house inner continuously with the intersection;
A second ridge line that extends along the to-be-joined portion and is disposed at a position retracted outside the vehicle compartment from the to-be-joined portion on the lateral wall portion directly above the to-be-joined portion;
The upper portion has a first bent portion with the convex portion facing the vehicle interior, the lower portion has the second bent portion with the convex portion facing the outside of the vehicle compartment, and occupies a recessed portion of the concave portion, and the first bent portion is the A wheel house inner structure, comprising: a first ridgeline, and the second bent portion having a recessed wall portion formed so as to form the second ridgeline.   2. The wheel house inner structure according to claim 1, wherein the curved portion is formed between the first bent portion and the second bent portion of the recessed wall portion.   The vertical wall of the wheel house inner has a bead portion that continues to the second ridge line and extends to the other end of the wheel house inner along the joined portion. Wheelhouse inner structure as described.

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