WO2016059885A1 - Structure pour partie avant de véhicule - Google Patents

Structure pour partie avant de véhicule Download PDF

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Publication number
WO2016059885A1
WO2016059885A1 PCT/JP2015/074101 JP2015074101W WO2016059885A1 WO 2016059885 A1 WO2016059885 A1 WO 2016059885A1 JP 2015074101 W JP2015074101 W JP 2015074101W WO 2016059885 A1 WO2016059885 A1 WO 2016059885A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
energy absorbing
cross member
bumper cross
front bumper
Prior art date
Application number
PCT/JP2015/074101
Other languages
English (en)
Japanese (ja)
Inventor
亮 時實
Original Assignee
三菱自動車工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱自動車工業株式会社 filed Critical 三菱自動車工業株式会社
Priority to RU2017108714A priority Critical patent/RU2666017C1/ru
Priority to BR112017004970-8A priority patent/BR112017004970B1/pt
Priority to CN201580051573.XA priority patent/CN106715202B/zh
Publication of WO2016059885A1 publication Critical patent/WO2016059885A1/fr
Priority to PH12017500356A priority patent/PH12017500356B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact

Definitions

  • the present invention relates to a vehicle front structure of an automobile, and more specifically, to a vehicle front structure that can reduce damage to a pedestrian in an accident in which an automobile collides with a pedestrian.
  • a vehicle front structure including a front bumper cross member fixed to the front portion of the vehicle and an energy absorbing member fixed to the front surface of the front bumper cross member is known as a means for reducing pedestrian damage.
  • the front bumper cross member is a vehicle body member extending along the vehicle width direction intersecting with the vehicle traveling direction, and has a cross section with high rigidity.
  • the energy absorbing member is for reducing a pedestrian's risk of fracture and ligament damage, and has a polygonal closed cross-sectional shape that collapses when the vehicle collides with a pedestrian (for example, Patent Document 1). reference).
  • Such a front structure of the vehicle needs to be replaced because the polygonal closed cross-sectional shape is crushed even when the vehicle collides with a person other than a pedestrian and does not return to its original shape after being crushed.
  • a front bumper cross member fixed to the front of the vehicle and an energy absorbing member having a flange projecting upward and downward in a polygonal closed cross-sectional shape are provided as a vehicle front structure that allows easy replacement of the crushed energy absorbing member.
  • a vehicle front structure has been proposed. In such a vehicle front structure, a bolt that penetrates the energy absorbing member is fastened to a female screw member provided on the front bumper cross member, and the energy absorbing member is fixed to the front bumper cross member. In such a vehicle front structure, when the bolt is removed, the energy absorbing member can be removed from the front bumper cross member, and the energy absorbing member can be replaced (for example, see Patent Document 2).
  • an object of the present invention is to provide a vehicle front structure that can absorb collision energy until the polygonal closed cross-sectional shape of the energy absorbing member is completely crushed.
  • the present invention includes a front bumper cross member constituting a front bumper extending in a vehicle width direction at a vehicle front portion, and a polygonal closed cross section fixed to the front surface of the front bumper cross member and crushed when the vehicle collides front.
  • An energy absorbing member having a shape, and a female screw member that is provided on a front surface portion of the front bumper cross member, a bolt that penetrates the energy absorbing member is screwed together, and the energy absorbing member is fixed to the front bumper cross member
  • a convex portion that is formed to protrude from the mounting surface of the energy absorbing member on the front bumper cross member side to the front bumper cross member side than the height of the head portion of the bolt, and to accommodate the head portion of the bolt;
  • the energy absorbing member is formed so as to protrude from the mounting surface on the front bumper cross member side to the front bumper cross member side from the height of the head of the bolt, and a convex portion that accommodates the head of the bolt; Since the front bumper cross member is formed on the front side of the front bumper cross member and includes a concave portion for accommodating the convex portion, the energy absorbing member and the head of the bolt interfere when the polygonal closed cross-sectional shape of the energy absorbing member is crushed. The collision energy can be absorbed until the polygonal closed cross section of the energy absorbing member is completely collapsed.
  • the polygonal closed cross-sectional shape of the energy absorbing member includes: a fixed side plate fixed to the front side of the front bumper cross member; and a polygonal absorption side plate joined to the fixed side plate. Consists of including.
  • the polygonal closed cross-sectional shape of the energy absorbing member includes the fixed side plate fixed to the front surface side of the front bumper cross member and the polygonal absorption side plate joined to the fixed side plate. Therefore, the material and thickness of the fixed side plate and the absorption side plate can be made different. Thereby, the material and board thickness of an absorption side board can be set arbitrarily, and the load (deformation load) required for crushing of an energy absorption member can be set arbitrarily.
  • the absorption side plate has a pressure receiving plate portion parallel to the front surface of the fixed side plate,
  • the pressure receiving plate portion has a tool hole for turning the bolt.
  • the absorption side plate has a pressure receiving plate portion parallel to the front surface of the fixed side plate, and the pressure receiving plate portion has a hole for a tool for turning the bolt, so it is easy to turn the bolt.
  • the energy absorbing member can be easily fixed to the front bumper cross member.
  • the convex portions are provided at a plurality of locations in the vehicle width direction. In this way, since the convex portions are provided at a plurality of locations in the vehicle width direction, they are accommodated in the concave portions at a plurality of locations.
  • the energy absorbing member is covered with a bumper facial.
  • the energy absorbing member is covered with the bumper facial, it is possible to make the design with a sense of unity between the bumper facial and the body.
  • the protrusion amount of the convex portion is larger than the depth of the concave portion.
  • the protrusion amount of the convex portion is larger than the depth of the concave portion, a gap is opened between the energy absorbing member and the front bumper cross member, and the space between the energy absorbing member and the front bumper cross member is increased. It is possible to prevent raindrops that have invaded from staying.
  • the energy absorbing member and the bolt head do not interfere with each other, and the polygonal closed cross-section of the energy absorbing member does not interfere. Energy from collision can be absorbed until the shape is completely collapsed.
  • FIG. 3 is a perspective view showing a state where an energy absorbing member is removed from the vehicle front structure shown in FIG. 2. It is a disassembled perspective view of the energy absorption member shown in FIG. It is a schematic diagram for demonstrating the crushing process of the energy absorption member shown in FIG.
  • FIG. 1 is a perspective view showing an appearance of a vehicle that employs a vehicle front structure according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing the configuration of the vehicle front structure according to the embodiment of the present invention
  • FIG. 3 is a cross-sectional view showing the configuration of the vehicle front structure shown in FIG. 4
  • FIG. 5 is an exploded perspective view of the energy absorbing member shown in FIG.
  • the vehicle front structure As shown in FIG. 1, the vehicle front structure according to the embodiment of the present invention enables the front bumper (bumper facial 21) 2 and the body 3 to have a unity design. As shown in FIG. 2 and FIG. 3, the front bumper cross member 4 and the energy absorbing member 5 are provided.
  • the front bumper cross member 4 is a vehicle body member constituting the front bumper 2 extending in the vehicle width direction at the front portion of the vehicle, and is a front end of a pair of left and right side members 61 and 62 provided along the vehicle traveling direction. Placed on the surface.
  • the front bumper cross member 4 is fixed to the pair of left and right side members 61 and 62 by welding the entire circumference of the pair of left and right side members 61 and 62.
  • the front bumper cross member 4 is parallel to the vehicle width direction between the pair of left and right side members 61 and 62 and is inclined rearward in the vehicle traveling direction on the outer side of the side members 61 and 62 in the vehicle width direction.
  • the front bumper cross member 4 is configured by combining a front member 41 disposed on the front side in the vehicle traveling direction and a rear member 42 disposed on the rear side in the vehicle traveling direction. It has a rectangular cross section with a short side and a long side in the vehicle vertical direction.
  • the front member 41 is a steel plate having a uniform thickness formed into a groove shape.
  • the front member 41 has a vehicle traveling direction front side along the vehicle vertical direction and a vehicle traveling direction rear side opened.
  • the rear member 42 is formed by forming a steel plate having a uniform thickness into a slightly wider groove shape than the front member 41 so that the front member 41 is fitted.
  • the rear side member 42 is open on the front side in the vehicle traveling direction, and the rear side in the vehicle traveling direction is along the vehicle vertical direction.
  • the front member 41 is fitted into the opening of the rear member 42 and joined to the rear member 42 by welding or the like.
  • the front member 41 and the rear member 42 can be made of any material and any thickness, but in this embodiment, they are formed of steel plates having the same material and the same thickness.
  • the front bumper cross member 4 has a concave portion 41 a 1 in the center in the vehicle vertical direction on the front surface of the front member 41.
  • the concave portion 41a1 is a portion that accommodates a first convex portion 51a1 and a second convex portion 51a2 provided on the fixed side plate 51 of the energy absorbing member 5, which will be described later, and is provided over the entire vehicle width direction. It is recessed toward the back in the direction of travel.
  • the concave portion 41a1 has a width that allows the first convex portion 51a1 and the second convex portion 51a2 to fit in the vehicle vertical direction.
  • the front bumper cross member 4 has a plurality of female screw members 43 in the recess 41 a 1 of the front member 41.
  • the plurality of female screw members 43 are screwed with bolts 53 for attaching the energy absorbing member 5 to the front bumper cross member 4, and in the concave portion 41 a 1 of the front side member 41 at the center in the vehicle vertical direction at a predetermined interval in the vehicle width direction. It is provided in the vicinity.
  • the female screw member 43 includes a plurality of through holes 41a2 and a plurality of nuts 43a.
  • the plurality of through holes 41a2 are provided in the recess 41a1 of the front member 41 near the center in the vehicle vertical direction at predetermined intervals in the vehicle width direction, and the plurality of nuts 43a correspond to the plurality of through holes 41a2 on the back surface of the front member 41. It is provided in the position to do.
  • the plurality of nuts 43a may be disposed only on the back surface of the front member 41, but in the present embodiment, they are joined to the back surface of the front member 41 by welding or the like from the viewpoint of improving work efficiency.
  • the front bumper cross member 4 has a plurality of through holes 42 a 1 in the rear member 42.
  • the plurality of through holes 42a1 are for making it easy to confirm whether or not the plurality of nuts 43a are welded to the back surface of the recess 41a1 of the front member 41, and are disposed at positions where the plurality of female screw members 43 can be visually confirmed. Has been.
  • the energy absorbing member 5 is a pedestrian protection member having a polygonal closed cross-sectional shape that is crushed when the vehicle collides with the front, and is disposed on the front surface of the front bumper cross member 4 described above. It is attached with a bolt 53.
  • the energy absorbing member 5 is disposed along the front surface of the front bumper cross member 4 and has the same width as the front bumper cross member 4 in the vehicle width direction.
  • the energy absorbing member 5 is parallel to the vehicle width direction between the pair of left and right side members 61 and 62, and is inclined rearward in the vehicle traveling direction outside the side members 61 and 62. Yes.
  • the polygonal closed cross-sectional shape of the energy absorption member 5 includes a fixed side plate 51 fixed to the front surface of the front bumper cross member 4 and a polygonal absorption side plate joined to the fixed side plate 51. 52.
  • the fixed side plate 51 is formed by forming a steel plate having a uniform thickness into an L-shaped cross section, and has a front plate portion 51a and a rear plate portion 51b.
  • the fixed side plate 51 can be made of any material and any thickness, but in the present embodiment, a steel plate thinner than the thickness of the front bumper cross member 4 is adopted.
  • the front plate portion 51 a is a portion arranged along the front surface of the front bumper cross member 4, and has a slightly narrower width than the front bumper cross member 4 in the vehicle vertical direction.
  • the rear plate portion 51b is a portion that extends rearward from the front plate portion 51a in a lower region of the front bumper cross member 4, and a connection plate portion 51c is formed between the front plate portion 51a and the rear plate portion 51b.
  • the connection plate portion 51c is disposed along the lower surface of the front bumper cross member 4, and the rear plate portion 51b extends obliquely downward from the connection plate portion 51c toward the rear of the vehicle.
  • the rear plate portion 51b has a sufficient width to join a rear flange portion 52c of the absorption side plate 52 described later.
  • the energy absorbing member 5 has a first convex portion 51 a 1 near the center in the vehicle vertical direction in the front plate portion 51 a of the fixed side plate 51.
  • the first convex portion 51a1 is a portion that fits into the concave portion 41a1 of the front member 41 of the front bumper cross member 4.
  • the first convex portion 51a1 is provided over the entire vehicle width direction and protrudes toward the rear side in the vehicle traveling direction.
  • the energy absorbing member 5 has a plurality of second convex portions 51a2 in the vehicle width direction in the first convex portion 51a1 of the front plate portion 51a of the fixed side plate 51.
  • the plurality of second convex portions 51 a 2 is a portion in which a head 53 a of a bolt 53 for attaching the energy absorbing member 5 to the front bumper cross member 4 is accommodated, and on the front bumper cross member 4 side. Projecting from the mounting surface to the front bumper cross member 4 side than the height H1 of the head 53a of the bolt 53 (H1 ⁇ H2 in FIG. 3).
  • the amount of protrusion of the plurality of second convex portions 51a2 is greater than the depth of the concave portion 41a1 included in the front member 41 of the front bumper cross member 4 described above, and is disposed in the concave portion 41a1 of the front member 41 of the front bumper cross member 4. It is provided at a position corresponding to the female screw member 43 and protrudes toward the rear side in the vehicle traveling direction with respect to the first convex portion 51a1 with a predetermined width L.
  • the energy absorbing member 5 has a plurality of through holes 51 a 3 in the front plate portion 51 a of the fixed side plate 51.
  • the plurality of through holes 51a3 are for passing through the bolts 53 for attaching the energy absorbing member 5 to the front bumper cross member 4, and the female screw member 43 disposed in the recess 41a1 of the front member 41 of the front bumper cross member 4. , Specifically, at the center of the second convex portion 51a2 of the front plate portion 51a of the fixed side plate 51.
  • the absorption side plate 52 is formed by forming a steel plate having a uniform thickness into a U-shaped cross section, and the polygonal closed cross-sectional shape of the energy absorbing member 5 formed on the front surface of the front bumper cross member 4 is a front side, a rear side.
  • the front side of one side, the upper two sides, and the lower one side is a thin pentagon.
  • the absorption side plate 52 has a pressure receiving plate portion 52a, a front flange portion 52b, and a rear flange portion 52c.
  • the absorption side plate 52 can be made of any material and any thickness as long as it can be deformed relatively easily, but in this embodiment, a steel plate thinner than the thickness of the fixed side plate 51 is adopted.
  • the pressure receiving plate portion 52 a is a portion that receives an impact when the vehicle collides with a pedestrian, and is disposed in parallel with the front plate portion 51 a of the fixed side plate 51.
  • the front flange portion 52b is a portion that is joined to the upper front edge portion of the front plate portion 51a of the fixed side plate 51, and is provided in a belt shape along the vehicle width direction at the upper edge portion of the absorption side plate 52.
  • the rear flange portion 52 c is a portion joined to the front surface of the rear plate portion 51 b of the fixed side plate 51, and is provided in a belt shape along the vehicle width direction at the lower edge portion of the absorption side plate 52.
  • the absorption side plate 52 has an upper plate portion 52d between the pressure receiving plate portion 52a and the front flange portion 52b, and has a lower plate portion 52e between the pressure receiving plate portion 52a and the rear flange portion 52c. .
  • the lower plate portion 52e is wider than the upper plate portion 52d, and the length of the lower plate portion 52e is longer than the length 52d of the upper plate portion 52d.
  • the upper side plate portion 52d is a portion connecting the pressure receiving plate portion 52a and the front flange portion 52b.
  • the upper plate portion 52d has a front end C at the boundary with the pressure receiving plate portion 52a and a connection point A with the front plate portion 51a at the boundary with the front flange portion 52b.
  • the upper side plate portion 52d is inclined so as to gradually increase from the pressure receiving plate portion 52a toward the front flange portion 52b.
  • the upper plate portion 52d has an inflection point (first ridgeline) 52d1 that forms a ridge line (first ridge line) 52d1 in the vehicle width direction slightly on the front flange portion 52b side between the pressure receiving plate portion 52a and the front flange portion 52b.
  • Inflection point (B) is located above the straight line connecting the front end C of the upper plate portion 52d and the connection point A.
  • the lower plate portion 52e is a portion that connects the pressure receiving plate portion 52a and the rear flange portion 52c.
  • the lower plate portion 52e has a front end D at the boundary with the pressure receiving plate portion 52a and a connection point F with the rear plate portion 51b at the boundary with the rear flange portion 52c.
  • the lower plate portion 52e is inclined so as to gradually become lower from the pressure receiving plate portion 52a toward the rear flange portion 52c. Further, the lower plate portion 52e has a ridge line (second line) in the vehicle width direction between the pressure receiving plate portion 52a and the rear flange portion 52c and in the vicinity of the ridge line in the vehicle vertical direction lower side on the front side in the vehicle traveling direction of the front bumper cross member 4. It has an inflection point (second inflection point) E that forms a (ridge line) 52e1. The inflection point E is located below the plane connecting the front end D of the lower plate portion 52e and the connection point F.
  • the energy absorbing member 5 has a plurality of holes 52a1 in the pressure receiving plate portion 52a of the absorption side plate 52.
  • the plurality of holes 52 a 1 are tool holes for fastening the bolts 53 to the female screw member 43, and are arranged at positions corresponding to the through holes 51 a 3 provided in the front plate portion 51 a of the fixed side plate 51.
  • the plurality of holes 52a1 are also used to adjust the deformation resistance of the energy absorbing member 5, that is, the energy that can be absorbed in an accident in which the vehicle collides with a pedestrian.
  • the deformation resistance of the energy absorbing member 5 is decreased, and if the size is decreased, the deformation resistance of the energy absorbing member 5 is increased.
  • the hole 52a1 is provided in principle so as not to block the upper edge (ridge line) and the lower edge (ridge line). However, when it is desired to greatly reduce the deformation resistance of the energy absorbing member 5, either the upper edge or the lower edge is provided. You may provide so that either or both may be interrupted
  • FIG. 6 is a schematic diagram for explaining a crushing process of the energy absorbing member shown in FIG. 3.
  • the energy absorbing member 5 is a polygon between the fixed side plate 51 and the absorption side plate 52. It has a closed cross-sectional shape.
  • the pressure receiving plate portion of the absorption side plate 52 of the energy absorbing member 5 as shown by an arrow in FIG. A force due to the collision is applied to 52a.
  • the collision force acts toward the rear in the vehicle traveling direction, the upper plate 52d bends at the connection point A, the inflection point B, and the front end C, and the lower plate 52e has the connection point F, the inflection. Bend at three points, point E and front end D.
  • the upper plate 52d is crushed while moving the inflection point B upward in the vehicle vertical direction, and the lower plate 52e is crushed while moving the inflection point E downward in the vehicle vertical direction.
  • the energy absorption member 5 absorbs the energy by collision.
  • the mounting surface of the energy absorbing member 5 on the front bumper cross member 4 side protrudes beyond the height of the head 53a of the bolt 53 on the front bumper cross member 4 side.
  • a second convex portion 51a2 that accommodates the head 53a of the bolt 53, and a concave portion 41a1 that is formed on the front side of the front bumper cross member 4 and accommodates the second convex portion 51a2.
  • the energy absorbing member 5 is joined by combining a fixed side plate 51 disposed on the rear side in the vehicle traveling direction and an absorption side plate 52 disposed on the front side in the vehicle traveling direction, and between the fixed side plate 51 and the absorption side plate 52. Since the polygonal closed cross-sectional shape is formed, the fixed side plate 51 and the absorption side plate 52 can be made of an arbitrary material and an arbitrary thickness. Thereby, the load (deformation load) required for crushing the energy absorbing member 5 can be arbitrarily set.
  • the polygonal closed cross-sectional shape of the energy absorbing member 5 includes a fixed side plate 51 fixed to the front side of the front bumper cross member 4 and a polygonal absorption side plate 52 joined to the fixed side plate 51. Therefore, the material and plate thickness of the fixed side plate 51 and the absorption side plate 52 can be made different. Thereby, the material and plate
  • the absorption side plate 52 has a pressure receiving plate portion 52a parallel to the front surface of the fixed side plate 51, and the pressure receiving plate portion 52a has a tool hole 52a1 for turning the bolt 53. It is easy and the energy absorbing member 5 can be easily fixed to the front bumper cross member 4.
  • the 2nd convex part 51a2 is provided in several places in the vehicle width direction, it is accommodated in the recessed part 41a1 in multiple places. Further, since the energy absorbing member 5 is covered with the bumper facial 21, it is possible to design the bumper facial 21 and the body 3 with a sense of unity.
  • the protruding amount of the second convex portion 51a2 is larger than the depth of the concave portion 41a1, a gap is opened between the energy absorbing member 5 and the front bumper cross member 4, and the energy absorbing member 5 and the front bumper cross are separated. It is possible to prevent raindrops that have entered between the members 4 from staying.
  • the energy absorbing member 5 includes a front plate portion 51 a disposed along the front surface of the front bumper cross member 4, and a rear plate disposed extending rearward from the front plate portion 51 a in the lower region of the front bumper cross member 4.
  • a fixed side plate 51 having a portion 51b, an upper plate portion 52d joined to the front plate portion 51a and extending forward, a lower plate portion 52e joined to the rear plate portion 51b and extending forward, and an upper plate portion 52d.
  • An absorption side plate 52 having a pressure receiving plate portion 52a disposed in parallel with the front plate portion 51a between the front end and the front end of the lower plate portion 52e. Therefore, the absorption side plate 52 is lower than the upper plate portion 52d.
  • the side plate portion 52e is wider. As a result, when the vehicle collides with the front, the bending width of the lower plate portion 52e, which is wider than the upper plate portion 52d, becomes wider, and the bending width of the energy absorbing member 5 becomes wider than the upper side.
  • the upper plate portion 52d has an inflection point B that forms a ridge line 52d1 in the vehicle width direction
  • the lower plate portion 52e has an inflection point E that forms a ridge line 52e1 in the vehicle width direction. Since the position of the inflection point E is arranged behind the position of the inflection point B, when the vehicle collides with the front, the upper plate part 52d bends at the inflection point B forming the ridgeline 52d1, and the lower plate part 52e It bends at an inflection point E that forms a ridge line 52e1 arranged behind the inflection point B. Thereby, when the vehicle collides with the front, the bending width of the energy absorbing member 5 is wider on the lower side than on the upper side.
  • the inflection point B is located above a straight line connecting the connection point between the front end of the upper plate portion 52d and the front plate portion 51a of the upper plate portion 52d
  • the inflection point E is the lower plate portion 52e. Since it is located below the straight line connecting the connection point between the front end and the rear plate portion 51b of the lower plate portion 52e, the upper plate portion 52d has an inflection point B that forms the ridgeline 52d1 when the vehicle collides with the front.
  • the lower plate portion 52e is bent so as to protrude downward at the inflection point E forming the ridge line 52e1. Thereby, when the vehicle collides with the front, the absorption side plate 52 is reliably bent, and the energy absorbing member 5 is crushed as set.
  • the length of the lower plate portion 52e is longer than the length of the upper plate portion 52d, when the vehicle collides with the front, it first bends at the upper plate portion 52d and then bends at the lower plate portion 52e.
  • the bending width of the lower plate portion 52e is wider than the bending width of the energy absorbing member 5, and the bending width of the energy absorbing member 5 is wider on the lower side than the upper side.
  • the polygonal closed cross-sectional shape of the energy absorbing member 5 formed on the front surface of the front bumper cross member 4 is a pentagonal shape in which the front side, the rear side, the upper two sides, and the lower side piece are narrow in front.
  • the energy absorbing member 5 bends asymmetrically between the upper side and the lower side, and the bending width becomes wider on the lower side than the upper side.
  • the energy absorbing member 5 is detachably attached to the front surface of the front bumper cross member 4, the energy absorbing member 5 can be easily replaced even if the energy absorbing member 5 is crushed due to a frontal collision of the vehicle.
  • the present invention can absorb collision energy until the closed cross section of the energy absorbing member is completely crushed. Therefore, the vehicle front structure for reducing damage to a pedestrian in an accident in which an automobile collides with a pedestrian. It is suitable for.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vibration Dampers (AREA)

Abstract

La présente invention concerne une structure pour la partie avant d'un véhicule, comprenant : un élément transversal de pare-chocs avant (4) constituant un pare-chocs avant; un élément d'absorption d'énergie (5) présentant une forme de section transversale fermée polygonale, l'élément d'absorption d'énergie (5) étant fixé à la face avant de l'élément transversal de pare-chocs avant (4) et s'écrasant lors d'une collision frontale du véhicule; un élément de filetage femelle (43) prévu sur la section face avant de l'élément transversal de pare-chocs avant (4), l'élément de filetage femelle (43) présentant un boulon (53) mis en prise avec celui-ci, le boulon (53) ayant été passé à travers l'élément d'absorption d'énergie (5), l'élément de filetage femelle (43) fixant l'élément d'absorption d'énergie (5) à l'élément transversal de pare-chocs avant (4); une saillie (51a2) formée faisant saillie à partir de la surface de fixation latérale de l'élément transversal de pare-chocs avant (4) de l'élément d'absorption d'énergie (5) vers l'élément transversal de pare-chocs avant (4) par une hauteur supérieure à celle de la tête (53a) du boulon (53), la saillie (51a2) recevant la tête (53a) du boulon (53); et un évidement (41a1) formée sur le côté de face avant de l'élément transversal de pare-chocs avant (4) et recevant la saillie (51a2).
PCT/JP2015/074101 2014-10-15 2015-08-26 Structure pour partie avant de véhicule WO2016059885A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
RU2017108714A RU2666017C1 (ru) 2014-10-15 2015-08-26 Конструкция передней части транспортного средства
BR112017004970-8A BR112017004970B1 (pt) 2014-10-15 2015-08-26 Estrutura dianteira de veículo
CN201580051573.XA CN106715202B (zh) 2014-10-15 2015-08-26 用于车辆前部的结构
PH12017500356A PH12017500356B1 (en) 2014-10-15 2017-02-27 Structure for front portion of vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-210371 2014-10-15
JP2014210371A JP6380844B2 (ja) 2014-10-15 2014-10-15 車両前部構造

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WO2016059885A1 true WO2016059885A1 (fr) 2016-04-21

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PCT/JP2015/074101 WO2016059885A1 (fr) 2014-10-15 2015-08-26 Structure pour partie avant de véhicule

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JP (1) JP6380844B2 (fr)
CN (1) CN106715202B (fr)
BR (1) BR112017004970B1 (fr)
PH (1) PH12017500356B1 (fr)
RU (1) RU2666017C1 (fr)
WO (1) WO2016059885A1 (fr)

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CN109624895A (zh) * 2018-12-30 2019-04-16 舒兰市通用机械有限责任公司 一种具有螺纹孔的卡车保险杠横梁及其制造方法
RU201023U1 (ru) * 2020-08-04 2020-11-24 Игорь Анатольевич Мурзин Балка бампера

Citations (3)

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JP2016078562A (ja) 2016-05-16
CN106715202A (zh) 2017-05-24
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JP6380844B2 (ja) 2018-08-29
CN106715202B (zh) 2019-02-05

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