JP2013023199A - Vehicle rear part structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle rear part structure capable of suppressing splash of passing matter such as muddy water toward a vehicle rear part.SOLUTION: A duct portion 20 as an air passage discharging air in a rear wheel house toward the vehicle rear part side of a rear bumper cover is provided inside the rear bumper cover and at the vehicle rear portion side of the rear wheel house. The duct portion 20 is formed of a rectangular cylinder body, and a plurality of flat plates 34 stretched over a pair of right and left vertical walls 20A, 20A are provided in the duct portion 20. Any of the plurality of flat plates 34 impinges on muddy water as the passing matter passing through the duct portion 20 to reduce the moving speed of the muddy water 40, and thus splash of the muddy water 40 toward the vehicle rear portion can be suppressed.

Description

  The present invention relates to a vehicle rear structure.

  Patent Document 1 below discloses a structure that includes a passage portion formed by a rear bumper and a quarter panel, and discharges air in the rear wheel house to the rear of the vehicle through an opening provided on the rear surface of the rear bumper by the passage portion. Yes. In this structure, the air resistance of the vehicle is reduced by blowing out the air in the rear wheel house from the passage portion toward the rear of the vehicle at the opening of the rear bumper.

Japanese Patent Laid-Open No. 7-25369

  In Patent Document 1, when the vehicle travels in the rain, there is a possibility that the muddy water wound up by the rear tire passes through the passage portion provided at the rear of the rear wheel house and is scattered from the opening on the rear surface of the rear bumper to the rear of the vehicle.

  In view of the above fact, an object of the present invention is to obtain a vehicle rear structure capable of suppressing scattering of passing objects such as muddy water to the rear of the vehicle.

  The vehicle rear structure according to the invention of claim 1 is provided inside the rear bumper cover and on the vehicle rear side of the rear wheel house, and the discharge opening provided in the rear region of the rear bumper cover for the air in the rear wheel house An air passage portion that discharges the vehicle from the rear to the vehicle, and a speed reducing means that is provided in the air passage portion and decelerates the moving speed of the passing material by hitting a passing material that passes through the air passage portion. .

  According to a second aspect of the present invention, in the vehicle rear portion structure according to the first aspect, the speed reducing means is a projecting member provided so as to project from a wall constituting the air passage portion.

  According to a third aspect of the present invention, in the vehicle rear portion structure according to the second aspect, the projecting member is disposed in a direction intersecting the air flow direction of the air passage portion and is opposed to the air passage portion. It is laid across the wall.

  According to the first aspect of the present invention, the air passage provided in the rear bumper cover and on the vehicle rear side of the rear wheel house allows the air in the rear wheel house to be provided in the rear area of the rear bumper cover. To the rear of the vehicle. A speed reducing means for reducing the moving speed of the passing material is provided in the air passage portion, and the moving speed of the passing material is reduced by the speed reducing means hitting the passing material passing through the air passage portion. Thereby, it is prevented that the passing material such as muddy water goes straight through the air passage portion, and scattering of the passing material such as muddy water from the discharge opening to the rear of the vehicle is suppressed.

  According to the second aspect of the present invention, the speed-lowering means is a projecting member provided to project from the wall constituting the air passage portion, and the projecting member hits the passing material passing through the air passage portion. The moving speed of the passing object is reduced. Thereby, it is prevented that the passing material such as muddy water goes straight through the air passage portion, and scattering of the passing material such as muddy water from the discharge opening to the rear of the vehicle is suppressed.

  According to the third aspect of the present invention, the projecting member is arranged in a direction intersecting with the air flow direction of the air passage portion, and is spanned between the opposing walls of the air passage portion, and the air The protruding member easily hits the passing material passing through the passage portion. For this reason, the moving speed of the passing material is more reliably decelerated. This more reliably prevents the passing material such as muddy water from traveling straight through the air passage portion, and the scattering of the passing material such as muddy water from the discharge opening to the rear of the vehicle is more effectively suppressed.

  According to the vehicle rear structure according to the present invention, it is possible to suppress scattering of passing objects such as muddy water to the rear of the vehicle.

1 is a perspective view showing a vehicle to which a vehicle rear structure according to a first embodiment is applied. It is a perspective view showing the composition near the duct part of the rear part of the vehicle to which the vehicle rear part structure concerning a 1st embodiment was applied. It is a side view showing the composition near the duct part of the rear part of the vehicle to which the vehicle rear part structure concerning a 1st embodiment was applied. It is a perspective view which shows the duct part used for the vehicle rear part structure shown in FIG. It is a longitudinal cross-sectional view along the longitudinal direction of the duct part shown in FIG. It is a longitudinal cross-sectional view along line 2-2 in FIG. It is a perspective view which shows the structure of the duct part vicinity of the rear part of the vehicle to which the vehicle rear part structure which concerns on 2nd Embodiment was applied. It is a longitudinal cross-sectional view along the longitudinal direction of the duct part used for the vehicle rear part structure which concerns on 2nd Embodiment. It is a longitudinal cross-sectional view along the longitudinal direction of the duct part used for the vehicle rear part structure which concerns on 3rd Embodiment. It is a longitudinal cross-sectional view along line 4-4 in FIG.

  Hereinafter, a first embodiment of a vehicle rear structure according to the present invention will be described with reference to FIGS. Note that an arrow RR appropriately shown in these drawings indicates the vehicle rear side, an arrow UP indicates the vehicle upper side, and an arrow OUT indicates the vehicle width direction outer side.

  FIG. 1 is a perspective view of a vehicle to which the vehicle rear portion structure according to the present embodiment is applied. FIG. 2 is a perspective view showing a rear portion of a vehicle to which the vehicle rear structure according to the present embodiment is applied. FIG. 3 shows a rear portion of the vehicle to which the vehicle rear structure according to the present embodiment is applied. Is shown in a side view. As shown in these drawings, a rear bumper cover 12 made of resin is attached to the rear portion 11 of the vehicle 10 at the rear end portion on the vehicle lower side. The rear bumper cover 12 includes a rear surface portion 12A disposed along the vehicle width direction at the rear end portion of the vehicle 10, and a side surface portion 12B extending from both ends in the vehicle width direction of the rear surface portion 12A to the vehicle front side. . A rear combination lamp 22 is attached to the rear portion 11 of the vehicle 10 above the position where the rear surface portion 12A and the side surface portion 12B of the rear bumper cover 12 intersect. In FIG. 3, only the side surface portion 12B of the rear bumper cover 12 on one side of the vehicle 10 is illustrated, and the other side portion of the vehicle 10 is left-right symmetric and is not illustrated.

  The rear portion 11 of the vehicle 10 is provided with a rear wheel house 16 for storing the rear tire 14 on the vehicle front side of the side surface portion 12B of the rear bumper cover 12. A fender liner 18 is provided at a position facing the rear tire 14 at the front end of the side surface portion 12B of the rear bumper cover 12. The fender liner 18 is formed to curve in the vehicle vertical direction and the vehicle width direction along the peripheral surface of the rear tire 14.

  A duct portion (also referred to as a rear outlet) 20 as an example of an air passage portion is provided on the inner side in the vehicle width direction of the side surface portion 12B of the rear bumper cover 12 along the vehicle front-rear direction. The duct part 20 is provided on both sides of the rear part 11 of the vehicle 10 (see FIG. 2). The duct portion 20 is disposed between the side surface portion 12B of the rear bumper cover 12 and the vehicle main body on the inner side in the vehicle width direction, and is fixed to the vehicle main body with a fixture (not shown). The duct portion 20 is disposed on the vehicle rear side of the rear wheel house 16.

  As shown in FIGS. 2 and 4, the duct portion 20 is formed of a cylindrical body, and a cross section along the vehicle width direction is formed in a rectangular shape that is long in the vehicle vertical direction. That is, the duct portion 20 includes a pair of left and right vertical walls 20A, 20A arranged to face the vehicle width direction inner side and the vehicle width direction outer side, and a pair of upper and lower vertical walls arranged to face the vehicle upper side and the vehicle lower side. Horizontal walls 20B and 20C. An inflow opening 30 through which air in the rear wheel house 16 flows is formed at the front end portion of the duct portion 20, and air that has passed through the duct portion 20 is discharged at the rear end portion of the duct portion 20. A discharge opening 32 is formed. The lateral wall 20C below the vehicle is arranged so as to be inclined slightly upward from the inflow opening 30 toward the vehicle rear side (see FIG. 5).

  The fender liner 18 is provided with an opening having substantially the same shape as the inflow opening 30 of the duct portion 20, and the inflow opening 30 of the duct portion 20 is connected to the opening of the fender liner 18 (see FIGS. 1 and 3). ). An opening having substantially the same shape as the discharge opening 32 of the duct portion 20 is provided in the rear surface portion 12A of the rear bumper cover 12, and the discharge opening 32 of the duct portion 20 is connected to the opening of the rear surface portion 12A (FIG. 2). reference). That is, the inflow opening 30 of the duct portion 20 communicates with the rear wheel house 16 through the opening of the fender liner 18. Further, the discharge opening 32 of the duct portion 20 communicates with the outside of the rear portion 11 of the vehicle 10 through the opening of the rear surface portion 12 </ b> A of the rear bumper cover 12. As a result, the air in the rear wheel house 16 flows into the duct portion 20 from the inflow opening 30, and the air passes through the duct portion 20 and is discharged from the discharge opening 32 to the rear side of the rear surface portion 12 </ b> A of the rear bumper cover 12. It is like that.

  As shown in FIGS. 4 to 6, the duct portion 20 is provided with a flat plate 34 as an example of a protruding member that protrudes from the vertical wall 20 </ b> A constituting the duct portion 20 into the duct portion 20. The flat plate 34 is spanned across a pair of left and right vertical walls 20A, 20A facing each other in the duct portion 20 (see FIG. 6 and the like). The flat plate 34 is disposed in the longitudinal direction of the duct portion 20 (vehicle longitudinal direction), that is, in a direction intersecting with the air flow direction in the duct portion 20 (see FIG. 5 and the like).

  Further, the upper and lower surfaces of the flat plate 34 are arranged along the longitudinal direction of the duct part 20, that is, the air flow direction in the duct part 20. The length of the flat plate 34 in the vehicle front-rear direction is set shorter than the length from the inflow opening 30 to the discharge opening 32 of the duct portion 20, and the flat plate 34 extends in the vehicle up-down direction and the vehicle front-back direction in the duct portion 20. A plurality are provided at intervals. In other words, the plurality of flat plates 34 are dispersed in the vehicle vertical direction and the vehicle front-rear direction in the duct portion 20 and arranged in the lateral direction (vehicle width direction). Thereby, even if the some flat plate 34 is provided in the duct part 20, the inflow opening 30 is not restrict | limited and it is set as the structure by which the ventilation volume of the air which flows through the inside of the duct part 20 does not reduce. Further, the plurality of flat plates 34 are distributed in the vehicle vertical direction and the vehicle front-rear direction in the duct part 20 and arranged in the horizontal direction, so that a passing material (mass in the duct part 20 when the vehicle travels in rainy weather). When the muddy water 40 as the body passes, any one of the plurality of flat plates 34 hits the muddy water 40 so that the moving speed of the muddy water 40 is reduced. That is, the plurality of flat plates 34 function as “slow-down means” that reduces the moving speed of the muddy water 40 that has entered the duct portion 20.

  Next, the operation and effect of this embodiment will be described.

  A cylindrical duct portion 20 is provided along the vehicle front-rear direction on the inner side in the vehicle width direction of the side surface portion 12B of the rear bumper cover 12, and the inflow opening 30 at the front end portion of the duct portion 20 is the opening of the fender liner 18. The discharge opening 32 of the duct portion 20 is connected to the opening of the rear surface portion 12 </ b> A of the rear bumper cover 12. As a result, air in the rear wheel house 16 flows into the duct portion 20 from the inflow opening 30, and further air passes through the duct portion 20 and from the discharge opening 32 to the rear side of the rear surface portion 12 </ b> A of the rear bumper cover 12 (vehicle 10 To the outside of the rear part 11). That is, as shown in FIG. 5, air flows from the inflow opening 30 of the duct portion 20 toward the discharge opening 32 along the arrow A direction.

  At that time, as shown in FIGS. 5 and 6, a plurality of flat plates 34 are bridged between a pair of left and right vertical walls 20 </ b> A and 20 </ b> A facing the duct portion 20. Are arranged in the lateral direction (vehicle width direction) in a distributed manner in the vehicle vertical direction and vehicle longitudinal direction. Thereby, as shown in FIG. 5, when muddy water 40 as a passing material enters the duct portion 20 when the vehicle travels in rainy weather, any one of the plurality of flat plates 34 hits the muddy water 40. The moving speed of the muddy water 40 is reduced. The muddy water 40 adheres to the flat plate 34 or falls to the lower part of the duct portion 20. Thereby, it is prevented that the passing material (mass body) such as the muddy water 40 travels straight in the duct portion 20, and the passing material such as the muddy water 40 is prevented from scattering from the discharge opening 32 of the duct portion 20 to the rear of the vehicle. be able to. For this reason, even when the succeeding vehicle travels behind the vehicle 10, it is prevented that the forward view of the succeeding vehicle is obstructed.

  Further, the plurality of flat plates 34 are bridged between a pair of left and right vertical walls 20 </ b> A opposite to each other of the duct portion 20, and are arranged in a direction intersecting with the air flow direction in the duct portion 20. Further, the plurality of flat plates 34 are arranged in the lateral direction dispersed in the vehicle vertical direction and the vehicle longitudinal direction in the duct portion 20. Thereby, any one of the plurality of flat plates 34 easily hits the muddy water 40 that has entered the duct portion 20. For this reason, it is more effectively prevented that the passing material such as the muddy water 40 goes straight through the duct portion 20, and the passing material such as the muddy water 40 is more effectively scattered from the discharge opening 32 of the duct portion 20 to the rear of the vehicle. Can be suppressed.

  Further, the upper and lower surfaces of the plurality of flat plates 34 are arranged along the longitudinal direction of the duct portion 20, that is, the air flow direction in the duct portion 20, and the plurality of flat plates 34 are arranged in the vehicle vertical direction in the duct portion 20. The vehicle is arranged in a distributed manner in the longitudinal direction of the vehicle. Thereby, even if the some flat plate 34 is provided in the duct part 20, the inflow opening 30 is not restrict | limited, and it is suppressed that the ventilation rate of the air which flows through the inside of the duct part 20 reduces.

  Furthermore, the rigidity of the duct part 20 can be improved by spanning the plurality of flat plates 34 between the pair of left and right vertical walls 20A facing the duct part 20.

  Next, a second embodiment of the vehicle rear structure according to the present invention will be described with reference to FIGS. 7 and 8. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 7, a duct portion 50 as an example of an air passage portion is provided on the inner side in the vehicle width direction of the side surface portion 12B of the rear bumper cover 12 along the vehicle front-rear direction. The duct portion 50 is disposed on the vehicle rear side of the rear wheel house 16.

  As shown in FIGS. 7 and 8, the duct portion 50 is formed of a cylindrical body, and a pair of left and right vertical walls 50 </ b> A and 50 </ b> A arranged to face the vehicle width direction inner side and the vehicle width direction outer side, and the vehicle And a pair of upper and lower lateral walls 50B and 50C arranged to face the upper side and the lower side of the vehicle. In FIG. 8, the vertical wall on the near side of the duct portion 50 in the drawing is not shown. The lateral wall 50B above the vehicle is formed to be curved so that an intermediate portion in the vehicle front-rear direction protrudes toward the vehicle upper side. The lateral wall 50C below the vehicle is arranged so as to have a slightly upward slope from the inflow opening 30 toward the vehicle rear side in a state where the middle portion in the vehicle front-rear direction is curved in a concave shape.

  The duct portion 50 is provided with a wall body 52 as an example of a protruding member that protrudes into the duct portion 50 from the vertical wall 50A constituting the duct portion 50. The wall body 52 is formed of a hollow projecting member, and is spanned between a pair of left and right vertical walls 50A and 50A facing each other in the duct portion 50. The wall body 52 is provided in the vehicle front-rear direction and the vehicle vertical direction center portion of the duct portion 50 in a vehicle side view, and the outer peripheral surface is formed in a substantially oval shape. As a result, when viewed from the side of the vehicle, an intermediate portion in the longitudinal direction of the vehicle in the duct portion 50 is divided into an air passage portion 54A above the wall body 52 and an air passage portion 54B below the wall body 52.

  Further, as shown in FIG. 8, the upper surface 52A of the wall body 52 is arranged on the vehicle upper side from the upper end of the inflow opening 30 of the duct portion 50 in a side view of the vehicle, and the lowermost surface portion 52B of the wall body 52 is disposed. Further, the lower end of the discharge opening 32 of the duct portion 50 is arranged on the vehicle upper side. By providing such a wall body 52, the discharge opening 32 at the rear of the vehicle cannot be seen from the inflow opening 30 of the duct portion 50.

  In such a vehicle rear structure, the air in the rear wheel house 16 flows into the duct portion 50 from the inflow opening 30, and the air is further divided into the upper air passage portion 54 </ b> A divided by the wall body 52 in the duct portion 50. The air flows separately into the lower air passage portion 54B, and is discharged from the discharge opening 32 to the rear side of the rear surface portion 12A of the rear bumper cover 12 (outside of the rear portion 11 of the vehicle 10).

  In the duct portion 50, a wall body 52 is bridged between the vehicle longitudinal direction and the vehicle vertical direction center of the pair of left and right vertical walls 50 </ b> A, 50 </ b> A as viewed from the side of the vehicle. It is set so that the rear discharge opening 32 cannot be seen. For this reason, as shown in FIG. 8, when the muddy water 40 as the passing material (mass body) enters the duct portion 50 when the vehicle travels in the rain, the wall body 52 hits the muddy water 40. The moving speed of the muddy water 40 is reduced. That is, the wall body 52 functions as a “slowering means” that reduces the moving speed of the muddy water 40 that has entered the duct portion 50. The muddy water 40 adheres to the wall body 52 or falls to the lower part of the duct portion 50. Thereby, it is prevented that the passing material such as the muddy water 40 travels straight in the duct portion 50, and the passing material such as the muddy water 40 can be prevented from scattering from the discharge opening 32 of the duct portion 50 to the rear of the vehicle. For this reason, even when the succeeding vehicle travels behind the vehicle 10, it is prevented that the forward view of the succeeding vehicle is obstructed.

  Further, by providing the wall body 52 so that the discharge opening 32 at the rear of the vehicle cannot be seen from the inflow opening 30 of the duct portion 50, the wall body 52 more reliably hits the muddy water 40 passing through the duct portion 50. The moving speed is reduced. For this reason, it is possible to more effectively suppress the passage of the muddy water 40 and the like from the discharge opening 32 of the duct portion 50 to the rear of the vehicle.

  Next, a third embodiment of the vehicle rear structure according to the present invention will be described with reference to FIGS. 9 and 10. In addition, about the same component as 1st and 2nd embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 9 and FIG. 10, the duct portion 70 is formed of a rectangular tubular body that is long in the vehicle vertical direction, and is a pair of left and right disposed so as to face the vehicle width direction inner side and the vehicle width direction outer side. Vertical walls 20A and 20A, and a pair of upper and lower horizontal walls 20B and 20C arranged to face the upper and lower sides of the vehicle are provided.

  The duct portion 70 is provided with a plurality of pins 72 as an example of a projecting member spanned between a pair of left and right vertical walls 20A, 20A facing each other in the duct portion 20. The pin 72 is made of a cylindrical member, and is arranged in the longitudinal direction of the duct portion 70 (the vehicle front-rear direction), that is, in a direction intersecting the air flow direction in the duct portion 70 (see FIG. 5 and the like). In other words, the plurality of pins 72 are dispersed in the vehicle vertical direction and the vehicle front-rear direction in the duct portion 70 and arranged in the lateral direction (vehicle width direction).

  In such a vehicle rear structure, the air in the rear wheel house 16 (see FIG. 2) flows into the duct portion 70 from the inflow opening 30, and the air passes through the duct portion 70 from the discharge opening 32 to the rear bumper cover 12. It is discharged to the rear side of the rear surface portion 12A (see FIG. 2).

  In the duct portion 70, a plurality of pins 72 are spanned across the pair of left and right vertical walls 20A, 20A in the vehicle width direction, and as shown in FIG. When the muddy water 40 as the passing material (mass body) enters the muddy water 40, any one of the plurality of pins 72 hits the muddy water 40, so that the moving speed of the muddy water 40 is reduced. That is, the plurality of pins 72 function as “slow-down means” that reduces the moving speed of the muddy water 40 that has entered the duct portion 70. The muddy water 40 adheres to the pin 72 or falls to the lower part of the duct part 70. Thereby, the passing material such as the muddy water 40 is prevented from traveling straight in the duct portion 70, and the passing material such as the muddy water 40 can be prevented from scattering from the discharge opening 32 of the duct portion 70 to the rear of the vehicle. For this reason, even when the succeeding vehicle travels behind the vehicle 10, it is prevented that the forward view of the succeeding vehicle is obstructed.

  In the third embodiment, the pin 72 made of a cylindrical member is provided. However, the shape of the pin 72 is not limited to this, and may be an elliptical square member such as a quadrangular prism.

  In the first to third embodiments, the positions and dimensions of the flat plate 34, the wall body 52, and the pin 72 provided in the duct portion can be appropriately changed without departing from the gist of the present invention. Further, the number of the flat plates 34 or the pins 72 can be changed.

  Moreover, in 1st, 3rd embodiment, although the flat plate 34 or the pin 72 is spanned across the vertical wall which opposes within a duct part, the flat plate which protrudes in the cantilever state on one vertical wall of a duct part, for example Alternatively, a pin may be provided.

  Moreover, in 1st-3rd Embodiment, although the cross section along the vehicle width direction provided the cylindrical duct part with a long vehicle vertical direction, the shape of the cylindrical body which comprises a duct part is changeable.

  Moreover, in 1st-3rd embodiment, although the cylindrical duct part was provided in the vehicle width direction inner side of the side part 12B of the rear bumper cover 12, it is not limited to this structure, For example, the side part of the rear bumper cover 12 You may form a duct part with the inner wall of 12B, and the panel member which comprises a vehicle main body.

10 Vehicle 11 Rear 12 Rear Bumper Cover 12A Rear Surface (Rear)
16 Rear wheel house 20 Duct section (air passage section)
20A Vertical wall (wall)
32 Discharge opening 34 Flat plate (protruding member)
40 Muddy water (passage)
50 Duct section (air passage section)
50A vertical wall (wall)
52 Wall (projection member)
54A Air passage portion 54B Air passage portion 70 Duct portion (air passage portion)
72 pin (protruding member)

Claims (3)

An air passage portion that is provided inside the rear bumper cover and on the vehicle rear side of the rear wheel house, and discharges air in the rear wheel house from the discharge opening provided in a rear region of the rear bumper cover to the vehicle rear side;
A speed reduction means for reducing the moving speed of the passing object by being provided in the air passage part and hitting a passing object passing through the air passage part;
A vehicle rear structure having:   The vehicle rear structure according to claim 1, wherein the speed reduction means is a protruding member provided so as to protrude from a wall constituting the air passage portion.   The vehicle rear structure according to claim 2, wherein the projecting member is disposed in a direction intersecting with an air flow direction of the air passage portion, and is spanned over a wall facing the air passage portion.

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