JP2006117097A - Structure of accelerator pedal mounting part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure of an accelerator pedal mounting part capable of securing rigidity of the accelerator pedal mounting part arranged in the vicinity of the widthwise center of a vehicle. <P>SOLUTION: In the structure 10 of the accelerator pedal mounting part, a flat plate part 32 of the accelerator pedal mounting part 30 is separated to a cabin side in relation to a dash panel 12, each leg part 38 and 40 erected from the flat plate part 32 is fixed to the dash panel 12, and a tunnel reinforcement 20 integrated with the flat plate part 32 is fixed to a tunnel part 14. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a structure of an accelerator pedal attachment portion for attaching an accelerator pedal to a front portion of a vehicle body such as an automobile.

A structure using a gusset provided so as to straddle the abutting portion of the rear end of the front side member in the dash panel is known as an accelerator pedal attachment portion (see Patent Document 1). With this configuration, the rigidity of the mounting surface of the accelerator pedal is ensured.
Japanese Patent Laid-Open No. 9-30449

  However, the conventional technology as described above is a technology that is assumed to be applied to a right-hand drive vehicle (hereinafter referred to as a right-hand drive vehicle) in which an accelerator pedal is disposed behind the front side member. It is necessary to place the accelerator pedal in a limited space between the through hole for passing through the steering shaft and the tunnel part, closer to the center in the vehicle width direction than the car (offset from the front side member) It could not be applied effectively to left-hand drive cars. That is, in a left-hand drive vehicle, a small gusset or the like must be provided in a portion that is not reinforced by a front side member or the like, and conventionally it has been difficult to ensure the rigidity of the accelerator pedal mounting portion without relying on special measures. It was.

  In view of the above fact, an object of the present invention is to obtain a structure of an accelerator pedal mounting portion that can ensure the rigidity of the accelerator pedal mounting portion disposed in the vicinity of the center in the vehicle width direction.

  In order to achieve the above object, the structure of the accelerator pedal mounting portion according to the first aspect of the present invention is such that an accelerator pedal mounting member is partly spaced apart from the dash panel constituting the front lower portion of the vehicle body on the vehicle compartment side. Were fixed to the dash panel and a tunnel portion provided at the center of the dash panel in the vehicle width direction.

  In the structure of the accelerator pedal mounting portion according to claim 1, an accelerator pedal mounting member that is partly separated from the dash panel (opposite the dash panel) straddles the dash panel and the tunnel portion. The three-dimensional structure is fixed to the dash panel and the tunnel portion. For this reason, the accelerator pedal mounting member can be increased in size and improved in rigidity as compared with a structure that is independently fixed to the dash panel or a structure that is integrally formed with the dash panel. Accordingly, the rigidity of the accelerator pedal mounting portion can be ensured even in the vicinity of the center in the vehicle width direction where the reinforcing member such as the front side member is not disposed because it is close to the tunnel.

  Thus, in the structure of the accelerator pedal mounting portion according to the first aspect, the rigidity of the accelerator pedal mounting portion arranged in the vicinity of the center in the vehicle width direction can be ensured. Further, the accelerator pedal mounting member is configured to be large as described above, so that setting of a bead or the like is facilitated, and rigidity can be further improved by setting the bead or the like.

  The structure of the accelerator pedal mounting portion according to the invention described in claim 2 is the structure of the accelerator pedal mounting portion according to claim 1, wherein the accelerator pedal mounting portion is fixed to the tunnel portion of the dash panel constituting the front lower part of the vehicle body and reinforces the tunnel portion. A tunnel reinforcing member and an accelerator pedal mounting member fixed to the dash panel are integrated.

  In the structure of the accelerator pedal mounting portion according to claim 2, since the accelerator pedal mounting portion is integrated with the tunnel reinforcing member that reinforces the tunnel portion, in other words, the accelerator pedal mounting member is connected to the dash panel and the tunnel reinforcing member. Therefore, the rigidity of the accelerator pedal mounting member is further improved.

  The structure of the accelerator pedal mounting portion according to the invention of claim 3 is the structure of the accelerator pedal mounting portion according to claim 2, wherein the tunnel reinforcing member reinforces the tunnel by covering the tunnel from the outside. The accelerator pedal mounting member includes a flat plate portion extending from a portion of the tunnel reinforcing member that covers a side portion of the tunnel and provided with an accelerator pedal mounting hole, and an end portion of the flat plate portion opposite to the tunnel. To the dash panel side, and fixed leg portions fixed to the dash panel.

  In the structure of the accelerator pedal mounting portion according to claim 3, since the closed section is constituted by the flat plate portion, the side portion of the tunnel reinforcing member (tunnel portion itself), the dash panel, and the fixing leg portion, the accelerator pedal mounting member is provided. That is, the rigidity of the flat plate portion provided with the accelerator pedal mounting hole can be further improved. In particular, the rigidity in the vehicle width direction (lateral direction) is improved.

  The structure of the accelerator pedal mounting portion according to the invention of claim 4 is the structure of the accelerator pedal mounting portion according to claim 3, wherein a dash cross member protruding toward the vehicle compartment is fixed to the upper portion of the dash panel. And the accelerator pedal mounting member is fixed to the dash cross member at the upper portion of the flat plate portion, and is fixed to the dash panel from the lower portion of the flat plate portion and fixed to the dash panel. Further included.

  In the structure of the accelerator pedal mounting portion according to claim 4, the flat plate portion, the dash cross member, the dash panel, and another fixing leg portion form a closed cross section. The rigidity of the flat plate portion provided with the holes can be further improved. In particular, the rigidity in the vertical direction (longitudinal direction) is improved.

  As described above, the structure of the accelerator pedal mounting portion according to the present invention has an excellent effect that the rigidity of the accelerator pedal mounting portion disposed near the center in the vehicle width direction can be ensured.

  A structure 10 of an accelerator pedal mounting portion according to an embodiment of the present invention will be described with reference to FIG. In addition, the arrow FR shown in each figure shall show the front direction of the motor vehicle to which the structure 10 of the accelerator pedal attachment part was applied, the arrow UP will show an upward direction, and the arrow LE will show the left side, respectively.

  FIG. 1 is a perspective view in which a front structure of an automobile to which a structure 10 for an accelerator pedal mounting portion is applied is partially cut away. As shown in this figure, a dash panel 12 is provided at the front of the automobile. The dash panel 12 is arranged so as to partition the engine room and the vehicle compartment at the lower part of the automobile, and is continuous with the upper part 12A along the substantially vertical plane and the lower end of the upper part 12A, and the upper side is positioned forward of the lower side. The inclined portion 12B that is inclined in this manner and the horizontal portion 12C that is continuous with the lower rear end of the inclined portion 12B and extends substantially along the horizontal plane. The dash panel 12 is connected to the front end side of a floor panel (not shown) in the horizontal portion 12C.

  A tunnel portion 14 is formed at the center of the dash panel 12 in the vehicle width (left and right) direction across the inclined portion 12B and the horizontal portion 12C. The tunnel portion 14 is formed in a substantially mountain shape in sectional view that opens downward, and its front end passes through the inclined portion 12B in the front-rear direction and opens forward. Specifically, the tunnel portion 14 is configured such that side walls 14B and 14C are suspended from both left and right ends of the upper wall 14A along a substantially horizontal plane. The front ends of the upper wall 14A and the side walls 14B and 14C are continuous with the notch edges penetrating in the front-rear direction of the inclined portion 12B of the dash panel 12, and the lower ends of the side walls 14B and 14C extend the horizontal portion 12C in the vertical direction. It continues to the notch edge that penetrates.

  A through hole 16 is provided on the left side of the tunnel portion 14 in the dash panel 12 inclined portion 12B to allow a steering shaft (not shown) to pass from the vehicle compartment side to the engine compartment side. That is, the vehicle in this embodiment is a left-hand drive vehicle (hereinafter referred to as a left-hand drive vehicle) in which a steering wheel (handle) is disposed on the left side with respect to the central portion in the left-right direction.

  Further, a dash cross member (front panel member) 18 is fixed to the rear surface of the upper portion 12 </ b> A of the dash panel 12. The dash cross member 18 is formed in a substantially U-shape opening forward in a side view, and a pair of flange portions 18A extending vertically from the front opening end are fixed to the rear surface of the upper portion 12A by spot welding. Has been. Therefore, the dash cross member 18 protrudes rearward (vehicle compartment side) with respect to the upper portion 12A.

  Furthermore, the tunnel portion 14 of the dash panel 12 is reinforced by a tunnel reinforcement (reinforcement front panel member) 20 as a tunnel reinforcing member. Specifically, the tunnel reinforcement 20 has an upper wall 22A, side walls 22B and 22C, and has a tunnel adhering portion 22 formed in a substantially mountain shape in cross section corresponding to the tunnel portion 14 as a whole, and a front end of the upper wall 22A. And a cross member fixing portion 24 extending upward from the top.

  The tunnel reinforcement 20 is fixed to the tunnel portion 14 by spot welding with the tunnel fixing portion 22 substantially in contact with the outer surface of the tunnel portion 14, and the cross member fixing portion 24 is a dash cross member. 18 is fixed to the rear wall 18B by spot welding. In addition, "x" mark in a figure has shown the spot welding position notionally. As described above, the tunnel portion 14 of the dash panel 12 is connected to the dash cross member 18 via the tunnel reinforcement 20 to be reinforced and ensure sufficient rigidity.

  In the structure 10 of the accelerator pedal mounting portion, an accelerator pedal mounting portion 30 as an accelerator pedal mounting member is integrated with the tunnel reinforcement 20. The accelerator pedal attachment portion 30 has a flat plate portion 32 extending leftward from the left side wall 22B and the cross member fixing portion 24 of the tunnel reinforcement 20. An accelerator pedal mounting hole 34 is provided in the vicinity of the lower left corner of the flat plate portion 32 facing the dash panel 12. An accelerator pedal mounting hole is provided on the surface (front surface) of the flat plate portion 32 facing the dash panel 12 side. A weld nut 36 is provided to which a bolt passing through 34 is screwed.

  Further, a left leg portion 38 is erected from the left edge 32 </ b> A of the flat plate portion 32 toward the dash panel 12. Further, a lower leg portion 40 is erected from the lower edge 32 </ b> B of the flat plate portion 32 toward the dash panel 12. The left leg portion 38 and the lower leg portion 40 are connected to each other via a connecting leg portion 42 erected from the lower left corner edge 32 </ b> C of the flat plate portion 32. A flange portion 44 extends from the end of the left leg portion 38, the lower leg portion 40, and the connecting leg portion 42 on the dash panel 12 side toward the outside of the flat plate portion 32 in a rear view. In the accelerator pedal mounting portion 30, the flange portion 44 is fixed to the dash panel 12 by spot welding. The left leg portion 38 and the flange portion 44 correspond to “fixed leg portions” in the present invention, and the lower leg portion 40 and the flange portion 44 correspond to “other fixed leg portions” in the present invention.

  As described above, the accelerator pedal mounting portion 30 forms a three-dimensional structure so as to straddle the dash panel 12 and the tunnel portion 14 (side wall 14B) of the dash panel 12, that is, the flat plate portion 32 is the casing of the dash panel 12. In a state of being separated to the side, it is fixed to the dash panel 12 and fixed to the tunnel portion 14 (via the tunnel reinforcement 20). The flat plate portion 32 and the left leg portion 38 are closed with the side wall 14B and the dash panel 12 on the left side of the tunnel portion 14 in a cross-sectional view (planar cross-sectional view) along the substantially horizontal plane that passes through the accelerator pedal mounting hole 34. Is configured. For this reason, the accelerator pedal attachment part 30 is configured to have high lateral rigidity. Further, the accelerator pedal mounting portion 30 is cross-sectional view (side cross-sectional view) along the substantially vertical plane passing through the accelerator pedal mounting hole 34, and the flat plate portion 32 and the lower leg portion 40 are connected to the dash cross member 18 and the dash panel 12. Constitutes a closed section. For this reason, the accelerator pedal mounting portion 30 is configured to have a high rigidity in a substantially vertical direction.

  In this embodiment, an accelerator pedal mounting hole 46 that is paired with the accelerator pedal mounting hole 34 is provided in the rear wall 18 </ b> B of the dash cross member 18. A weld nut 48 into which a bolt penetrating the accelerator pedal mounting hole 46 is screwed is provided on the front surface of the rear wall 18B facing the upper portion 12A side of the dash panel 12. The support member for swingably supporting an accelerator pedal (not shown) is fixed at one end side to the accelerator pedal mounting portion 30 by a bolt that passes through the accelerator pedal mounting hole 34 and is screwed into the weld nut 36. The other end side is fixed to the dash cross member 18 by a bolt that passes through the accelerator pedal mounting hole 46 and is screwed into the weld nut 48.

  In this embodiment, the upper accelerator pedal mounting hole 46 is offset to the left with respect to the lower accelerator pedal mounting hole 34. The accelerator pedal applied to this embodiment outputs an electric signal corresponding to the depression amount to the engine ECU, and the engine ECU supplies an amount of fuel corresponding to this signal (accelerator depression amount) to the engine. Yes. Needless to say, the structure 10 of the accelerator pedal mounting portion according to the present embodiment may be applied to a configuration in which the fuel supply amount to the engine is mechanically adjusted according to the depression amount of the accelerator pedal. In this case, the accelerator pedal mounting hole 46 is provided, for example, substantially above the accelerator pedal mounting hole 34 in the dash cross member 18 or the flat plate portion 32.

  Next, the operation of this embodiment will be described.

  In the structure 10 of the accelerator pedal mounting portion having the above-described structure, the support member for swingably supporting the accelerator pedal spans the flat plate portion 32 of the accelerator pedal mounting portion 30 and the dash cross member 18, respectively. It is fixed to the accelerator pedal mounting portion 30 and the dash cross member 18 by a pair of bolts that pass through the mounting holes 34 and 46 and are screwed into the weld nuts 36 and 48. That is, the support member is fixed to the vehicle body, and the accelerator pedal supported by the support member is swingable with respect to the vehicle body.

  Here, since the accelerator pedal attachment part 30 forms a three-dimensional structure so as to straddle the dash panel 12 and the tunnel part 14, the accelerator pedal attachment part 30 is formed between the tunnel part 14 and the through hole 16. In a limited space between them, the size is increased and the dash panel 12 and the tunnel portion 14 are firmly and stably fixed.

  This will be described in comparison with the comparative example shown in FIG. In the comparative example, portions corresponding to the present embodiment are denoted by the same reference numerals as those of the present embodiment and description thereof is omitted. In the structure 70 of the accelerator pedal mounting portion shown in FIG. 2, a part of the dash panel 12 between the tunnel portion 14 and the through hole 16 protrudes toward the passenger compartment to form an accelerator pedal mounting portion 72. In this configuration, the portion of the dash panel 12 where the accelerator pedal mounting portion 72 is provided (the base portion of the accelerator pedal mounting portion 72) is, for example, from a connecting portion of a strength member such as a front side member (further left of the through hole 16). Since they are spaced apart, the rigidity is low, and eventually the accelerator pedal mounting portion 72 cannot be made highly rigid without resorting to special measures. In the structure 80 of the accelerator pedal mounting portion shown in FIG. 3, a bracket 82 which is a separate member from the dash panel 12 and the tunnel reinforcement 20 is fixed only to the dash panel 12 to constitute the accelerator pedal mounting portion. The bracket 82 disposed in the limited space between the tunnel portion 14 and the through hole 16 is small in size, and it is difficult to secure and sufficiently secure the rigidity to the dash panel 12. Further, as in the case of the structure 70 of the accelerator pedal mounting portion, the rigidity of the joining position itself of the bracket 82 in the dash panel 12 is low, and consequently the bracket 82 can be supported with high rigidity without depending on special measures. Can not.

  Compared to the comparative example described above, in the structure 10 of the accelerator pedal mounting portion according to the present embodiment, the accelerator pedal mounting portion 30 straddling the tunnel portion 14 and the dash panel 12 is increased in size and stabilized as described above. It is firmly fixed to the vehicle body. For this reason, the rigidity of the accelerator pedal attachment part 30 can be ensured. In addition, since the accelerator pedal mounting portion 30 is integrated with the tunnel reinforcement 20, in other words, the accelerator pedal mounting portion 30 straddles the dash panel 12 and the tunnel portion 14 reinforced by the tunnel reinforcement 20. Therefore, the accelerator pedal mounting portion 30 can ensure sufficient rigidity.

  As described above, in the structure 10 of the accelerator pedal mounting portion according to the present embodiment, the rigidity of the accelerator pedal mounting portion 30 disposed near the center in the vehicle width direction like a left-hand drive vehicle can be ensured.

  Further, in the structure 10 of the accelerator pedal mounting portion, since the substantially horizontal cross section passing through the accelerator pedal mounting hole 34 forms a closed cross-sectional structure, the right and left direction (lateral direction) rigidity of the accelerator pedal mounting portion 30 is high. Similarly, in the structure 10 of the accelerator pedal mounting portion, the substantially vertical section passing through the accelerator pedal mounting hole 34 forms a closed section structure, and therefore the rigidity of the accelerator pedal mounting portion 30 in the substantially vertical direction (vertical direction) is high. Therefore, in the structure 10 of the accelerator pedal mounting portion, the rigidity in each direction according to the operation of the accelerator pedal is high, and a good operational feeling can be obtained.

  Further, since the accelerator pedal mounting portion 30 is integrated with the tunnel reinforcement 20, the accelerator pedal mounting portion 30 is not increased without increasing the number of parts (the bracket 82) as in the structure 80 of the accelerator pedal mounting portion shown in FIG. Can be ensured. Further, since the accelerator pedal mounting portion 30 is enlarged as described above, for example, by appropriately setting a bead on the accelerator pedal mounting portion 30, the accelerator can be further improved or the accelerator can be secured while maintaining a certain rigidity. It is also possible to reduce the thickness of the pedal mounting portion 30.

  In addition, this invention is not limited to the said embodiment, It can implement suitably by changing within the range described in the claim. Therefore, for example, the accelerator pedal attachment portion 30 may be configured separately from the tunnel reinforcement 20, and the tunnel reinforcement 20 may be configured to reinforce the tunnel portion 14 from the inside of the tunnel portion 14. Further, for example, instead of the configuration in which the accelerator pedal mounting portion 30 includes both the left leg portion 38 and the lower leg portion 40, a configuration in which any one leg portion is not provided may be employed. For example, in a configuration that does not include the left leg portion 38, it is possible to adopt a structure in which the support member of the accelerator pedal that bridges between the flat plate portion 32 and the dash cross member 18 ensures the rigidity.

It is a perspective view which shows the structure of the accelerator pedal attachment part which concerns on embodiment of this invention. It is a perspective view which shows the comparative example with respect to the structure of the accelerator pedal attachment part which concerns on embodiment of this invention. It is a perspective view which shows another comparative example with respect to the structure of the accelerator pedal attachment part which concerns on embodiment of this invention.

Explanation of symbols

10 Accelerator pedal mounting part structure 12 Dash panel 14 Tunnel part 18 Dash cross member 20 Tunnel reinforcement (tunnel reinforcement member)
30 Accelerator pedal mounting part (Accelerator pedal mounting member)
32 Flat plate 38 Left leg (fixed leg)
40 Lower leg (other fixed legs)
44 Flange (fixed leg, other fixed leg)

Claims (4)

  Accelerator pedal mounting members, which are partly spaced apart from the dash panel constituting the front lower part of the vehicle body, are respectively provided in the dash panel and the tunnel portion provided in the center of the dash panel in the vehicle width direction. The structure of the fixed accelerator pedal mounting part.   The structure of an accelerator pedal mounting portion according to claim 1, wherein the accelerator pedal mounting member is integrated with a tunnel reinforcing member that is fixed to the tunnel portion and reinforces the tunnel portion. The tunnel reinforcing member reinforces the tunnel by covering the tunnel from the outside,
The accelerator pedal mounting member includes a flat plate portion extending from a portion of the tunnel reinforcing member that covers the side portion of the tunnel and provided with an accelerator pedal mounting hole, and an end portion of the flat plate portion opposite to the tunnel. A fixed leg portion standing on the dash panel side and fixed to the dash panel.
The structure of the accelerator pedal mounting portion according to claim 2. A dash cross member protruding to the passenger compartment side is fixed to the upper part of the dash panel,
The accelerator pedal mounting member further includes another fixing leg portion fixed to the dash panel, with the upper portion of the flat plate portion fixed to the dash cross member and standing on the dash panel side from the lower portion of the flat plate portion. Including,
The structure of the accelerator pedal mounting part according to claim 3.

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