JP2015096357A - Vehicle front part structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a situation, in which a cushioning member early deforms beyond the maximum deformation amount for maintaining the restorability during a minor collision and a bumper reinforcement is deformed, without providing a special form in the bumper reinforcement.SOLUTION: A vehicle 1 includes: a bumper reinforcement 6 extending in a vehicle width direction and supported by crash cans from the vehicle rear side at both end parts; and a cushioning member 22 which is fixed to the front surface of the bumper reinforcement 6 and extends in the vehicle width direction along the bumper reinforcement 6. The cushioning member 22 includes: a base part 24 which is arranged along a front surface of the bumper reinforcement 6; and a protruding part 25 which forms a plate-like shape extending from the base part 24 to the vehicle front side and may deform in a vertical direction. The protruding part 25 is positioned at one end side of the front surface of the bumper reinforcement 6 when viewed in the vertical direction and is formed so as to incline from the front surface of the bumper reinforcement 6 to the outer side in the vertical direction.

Description

  The present invention relates to a front structure of a vehicle provided with a buffer member for protecting a collision object such as a pedestrian between a bumper reinforcement and a bumper fascia.

  A buffer member is provided between the bumper reinforcement and the bumper fascia for the purpose of protecting the object to be collided, particularly for protecting the pedestrian. For example, Patent Document 1 describes a configuration in which the buffer member is straightly compressed and deformed in a horizontal direction against a collision load by setting the cross-sectional shape of the buffer member to a U-shape that opens toward the rear of the vehicle. ing. Moreover, in patent document 2, a recessed part is formed in the front surface of a bumper reinforcement, and a buffer member is installed in the said recessed part so that it may protrude ahead from this recessed part, and a buffer member bottoms out early ( That is, it is described that the deformation of the buffer member is prevented from exceeding the maximum deformation amount capable of maintaining the recoverability.

Japanese Patent No. 4723986 Japanese Patent No. 4354209

  Since the bumper reinforcement is supported by the frame member of the vehicle body on the left and right, if the bumper reinforcement collides with an obstacle such as a wall and the buffer member bottoms, a load exceeding the bending rigidity is applied to the bumper reinforcement. The central part of the vehicle width direction on the center side is pushed deeper than the part supported by the frame member by the thickness of the bottomed buffer member transmitted through the buffer member, and the rear radiator, etc. There is a concern of collision with auxiliary equipment.

  In particular, if the bumper reinforcement is curved in plan view so that the center part in the vehicle width direction protrudes forward from both ends, the center part first hits the obstacle and the load concentrates. There is a concern of being pushed deeper back.

  According to the structure described in Patent Document 2, since the bumper reinforcement (especially the central portion in the vehicle width direction) is prevented from being pushed deeply into the rear at an early stage during a collision, the bumper can be used during a light collision. It is effectively prevented that the reinforcement is deformed and an auxiliary machine such as a radiator behind the damage is damaged. However, in this case, since it is necessary to form the concave portion in the bumper reinforcement, it takes time to manufacture the bumper reinforcement and increases the cost. In recent years, in order to improve the strength, bumper reinforcements have been made of high-tensile steel sheets or carbon fiber reinforced resins. These materials have relatively poor moldability and are It is difficult to provide a recess.

  The present invention has been made in view of the circumstances as described above, and provides a special shape to the bumper reinforcement so that the bumper reinforcement is deformed by the shock absorbing member quickly bottoming out during a light collision. It aims to solve without any problems.

  In order to solve the above-described problems, a vehicle front structure according to the present invention has a bumper reinforcement that extends in the vehicle width direction and is supported at both ends by a frame member from the rear of the vehicle, and is fixed to the front surface of the bumper reinforcement. A cushioning member extending in the vehicle width direction along the bumper reinforcement, and an auxiliary device disposed on the vehicle rear side of the bumper reinforcement, the cushioning member being a base along the front surface of the bumper reinforcement And a projecting portion that is formed in a plate shape extending from the base portion toward the front of the vehicle and can be deformed in the vertical direction, and the projecting portion is positioned on one end side in the vertical direction of the front surface of the bumper reinforcement. The bumper reinforcement is formed so as to be tiltable outward from the front surface in the vertical direction.

  According to this structure, at the time of the collision, the shock absorbing member, particularly the protrusion, is deformed, so that the collision load is absorbed and the impact received by the collision target is reduced. In this case, from the viewpoint of protecting the pedestrian at the time of a light collision with respect to the pedestrian, even when the longitudinal length of the protruding portion is set to be relatively long, at the time of the collision, the protruding portion is moved vertically from the front surface of the bumper reinforcement. By deforming so that it tilts outward, the buffer member bottoms out at the early stage of the collision (the maximum deformation amount that the deformation of the buffer member can maintain the resilience between the impacted object and the bumper reinforcement) (Becomes exceeding the state) is suppressed. Therefore, it is possible to suppress the deformation of the bumper reinforcement at a relatively early stage at the time of the collision without providing a special shape in the bumper reinforcement, that is, a conventional recess (Patent Document 2). It becomes possible.

  In the vehicle front structure as described above, the bumper reinforcement and the cushioning member have a curved shape such that a central portion in the vehicle width direction protrudes forward of the vehicle from both ends, and the bumper rain The force is transmitted from the bumper reinforcement to the frame member before the bumper reinforcement is deformed rearward by the input of the collision load from the vehicle and interferes with the auxiliary equipment. It is preferable to form so as to start.

  According to this structure, at the time of a collision, even if the bumper reinforcement starts to deform and the bumper reinforcement starts to deform, the bumper reinforcement will be tilted completely before the bumper reinforcement interferes with the auxiliary equipment. Since the transmission of the collision load from the bumper reinforcement to the frame member is started, it is possible to suppress the bumper reinforcement from being in a deformed state that immediately damages the auxiliary machine at the time of a light collision or the like.

  In the vehicle front structure as described above, the base portion is formed such that the vertical width in a predetermined range including the central portion in the vehicle width direction is smaller than the vertical width outside the predetermined range in the vehicle width direction. It is suitable.

  According to this structure, since the remaining amount of crushing of the buffer member between the collision target and the bumper reinforcement is reduced and the buffer member easily falls down, the buffer member can bottom out at an early stage at the time of collision. This is advantageous in terms of suppression.

  In the vehicle front structure as described above, an exterior member that is disposed in front of the buffer member and has an outside air inlet at the center in the vehicle width direction, and a rear side of the exterior member in the vehicle width direction. A pair of partition members that are arranged at a predetermined interval and suppress the outside air introduced from the outside air introduction port from flowing outward in the vehicle width direction, and the buffer member has a length in the vehicle width direction. It may be longer than the interval between the pair of partition members and the protruding portion may extend to the outside of the pair of partition members.

  According to this structure, the outside air introduced from the outside air introduction port can be effectively used as cooling air for the radiator and the like while suppressing the escape to the outside in the vehicle width direction, while leaking from a gap formed in the partition member. It is possible to suppress the outside air from flowing turbulently in the vertical direction and using it as a running resistance by using the protruding portion of the buffer member.

  As described above, according to the front structure of the vehicle of the present invention, the bumper reinforcement is provided with a special shape that the bumper reinforcement is deformed due to the shock absorbing member bottoming out early in the event of a light collision. Can be solved without any problems.

It is a perspective view (state which separated the bumper fascia) which shows the front part of the vehicle to which the front part structure of the vehicle concerning the present invention was applied. It is sectional drawing which shows the front part structure of a vehicle. 1 is a schematic plan view showing a specific configuration of a front portion of a vehicle. It is a front view which shows a buffer member. It is principal part sectional drawing of the vehicle for demonstrating the deformation | transformation state of the buffer member at the time of a light collision. It is principal part sectional drawing of the vehicle for demonstrating the deformation | transformation state of the buffer member at the time of a light collision. It is principal part sectional drawing of the vehicle which shows the modification of the front part structure of a vehicle.

  Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, a vehicle (automobile) 1 is connected to a pair of left and right front side frames 2 extending in the front-rear direction and front end portions of the left and right front side frames 2 as main structures at the front thereof. A pair of crash cans 4 and a front bumper reinforcement 6 (hereinafter abbreviated as bumper rain 6) that is fixed to the front end portions of the left and right front side frames 2 through the crash cans 4 and constitutes the skeleton of the front bumper. Have. As shown in FIG. 2, the vehicle 1 includes a hood hood 8 that forms the upper surface of the front portion of the vehicle as a member that forms the outer surface of the front portion, and an outer surface of the front end of the vehicle that is outside the front bumper. Front bumper fascia 10 constituting the surface (corresponding to the exterior member of the present invention / hereinafter abbreviated as bumper fascia 10) and left and right front fender panels (not shown) constituting the outer surface of the side of the vehicle. Have. The inside of the member constituting the outer surface of the hood hood 8 or the like is an engine room 14, and an engine, etc., not shown is accommodated in the engine room 14, and the engine coolant is cooled in front of the engine. A radiator 16 is provided for this purpose. The radiator 16 includes a condenser 17a, a radiator body 17b, a radiator fan 17c, and the like, and is fixed to the vehicle body via a radiator shroud 18.

  As shown in FIG. 1, the radiator shroud 18 includes a pair of vertical side portions 19a located on the left and right outer sides of the radiator 16, an upper side portion 19b connecting the upper end portions of the vertical side portion 19a, and a lower end portion of the vertical side portion 19a. It is made into the substantially square frame shape by the front view which has the lower side part 19c which connects each other. And the radiator 16 is arrange | positioned inside the radiator shroud 18 in the state seen from the front of the vehicle 1, and is being fixed to the said vertical side part 19a etc. directly or indirectly via a bracket. The radiator shroud 18 further includes a fixed arm portion (not shown) that extends outward and rearward from the left and right ends of the upper side portion 19b and is fixed to the apron rain, and the pair of left and right headlamp units 20 includes these fixed arms. It is fixed to the part.

  As shown in FIG. 1, a lower stiffener 30 that is a foot wiping member for a pedestrian is fixed to the front surface of each vertical side portion 19 a and lower side portion 19 c of the radiator shroud 18. The front end portion of the lower stiffener 30 protrudes forward of the vehicle from the later-described buffer member 22 and the later-described bumper cover 11 (see FIG. 2), and the lower stiffener 30 is a pedestrian at the time of a light collision with a pedestrian. The pedestrian is received on the bonnet hood 8 by performing the foot removal, thereby preventing the pedestrian from being caught in the bottom of the vehicle 1. In addition, although illustration is abbreviate | omitted, in order to relieve the impact with respect to the pedestrian who caught the hood hood 8, for example, a sufficient crash stroke is ensured between the hood hood 8 and the engine or the like, or an air bag mechanism is provided. It is provided with means for mitigating impact on pedestrians. As shown in the figure, the lower stiffener 30 has a front side portion 31a that extends substantially horizontally and a rear side portion 31b that extends obliquely upward from the rear end thereof. It also functions as a guide member that guides the traveling wind introduced from 10c to the radiator 16 along the rear side portion 31b.

  An under cover 32 that protects the radiator 16 and the like by covering a certain region of the front portion of the vehicle from the lower side of the vehicle is fixed to the lower end portion of each vertical side portion 19a.

  A shock absorbing buffer member 22 is fixed to the bumper rain 6. In the vehicle 1, a front bumper is constituted by the buffer member 22, the bumper rain 6, the bumper fascia 10 (including a bumper cover 11 described later), and the like.

  As shown in FIGS. 2 and 3, the bumper rain 6 includes a plate-shaped front member 7 a having a substantially rectangular shape, and a cross-sectional hat-shaped rear surface joined to the rear surface of the front member 7 a through flange portions 71 on both upper and lower sides. It is an elongate closed cross section formed in the vehicle width direction formed by the side member 7b. The front side member 7a and the rear side member 7b are made of a light and highly rigid material, and in this example, are made of a high-tensile steel plate or a carbon fiber reinforced resin. The bumper rain 6 has a predetermined width in the vertical direction so as to achieve a strength that can withstand an impact at the time of a frontal collision defined in safety standards and the like. Further, the bumper rain 6 has a shape curved in plan view so that the vehicle width direction center portion of the front surface (front surface of the front side member 7a) protrudes forward from both end portions, and the both end portions are crashed. It is fixed to the front end portion of the front side frame 2 via the can 4. Further, as shown in FIG. 4, the bumper rain 6 has a shape in which the upper edge portion is slightly depressed downward in a substantially V shape in order to widen the designability or the cooling air or intake intake opening in the central region in the vehicle width direction. Has been.

  The buffer member 22 is for absorbing a collision load and mitigating the impact received by the collided body at the time of a collision, and is disposed between the inner surface of the bumper fascia 10 and the bumper rain 6, and the front side of the bumper rain 6. It is fixed to the front surface of the member 7a.

  As shown in FIGS. 2 to 4, the buffer member 22 protrudes forward from a base portion 24 that extends in the vehicle width direction along the front surface of the bumper rain 6 (front member 7 a), and a front lower end of the base portion 24. And it has the shape of the cross-sectional substantially L shape provided with the plate-shaped protrusion part 25 extended in a vehicle width direction. The buffer member 22 has a shape that is entirely curved in plan view so that the vehicle width direction center portion protrudes forward from both ends, and is arranged along the front surface (front side member 7a) of the bumper rain 6. And fixed to the bumper rain 6. Specifically, a pair of fixing boss portions 26 are provided on the rear surface of the buffer member 22 and outside the central portion in the vehicle width direction, and the fixing boss portions 26 are provided on the bumper rain 6 (front side member). The buffer member 22 is fixed to the bumper rain 6 by being inserted into a mounting hole (not shown) formed in 7a).

  The cushioning member 22 is entirely composed of an elastic body made of a foamed resin material, etc., so that the protruding portion 25 can be elastically bent and deformed in the vertical direction with respect to the base portion 24. In particular, the buffer member 22 has an L-shaped cross section in which the protruding portion 25 extends from the lower end portion of the base portion 24 toward the front of the vehicle as described above, and as shown in FIG. When viewed from the front, the central portion of the projecting portion 25 in the vehicle width direction is slightly bent downward, so that it is easily bent downward at the time of a light collision. In addition, the buffer member 22 is provided so that the protruding portion 25 is positioned at the lower end portion of the bumper rain 6. Specifically, the buffer member 22 is positioned in front of the flange portion 71 below the rear member 7 b of the front member 7 a. By being provided, it is possible to tilt downward from the front surface of the bumper rain 6 (see FIG. 5). Further, by providing the protrusion 25 in the vicinity of the lower end of the front surface of the bumper rain 6 in this way, the lower position than the pedestrian's knee is supported by the protrusion 25 at the time of a light collision with the pedestrian, This reduces the burden on the legs (particularly knees).

  As shown in FIG. 4, the base 24 of the buffer member 22 is formed so that the vertical width thereof is substantially equal to the vertical width of the bumper rain 6 at both ends in the vehicle width direction. The inner region (a predetermined range including the central portion in the vehicle width direction) is formed narrower than the vertical width of the bumper rain 6. Thereby, the base part 24 is made into the shape where the vehicle width direction center area | region was dented downward, seeing from the vehicle front.

  The protruding portion 25 is provided not in the entire region of the buffer member 22 in the vehicle width direction but in a region substantially inside the left and right crash cans 4 when viewed from the front of the vehicle 1. Further, in the buffer member 22, both end portions in the vehicle width direction, more specifically, a certain region (region Ta in FIG. 4) at both ends of the buffer member including a portion located in front of the crash can 4 is closer to the vehicle. It is formed to be harder than the inner region in the width direction. In this example, the expansion ratio of the foamed resin material in the region Ta is set lower than the expansion ratio of the foamed resin material in the region on the inner side in the vehicle width direction, so that both end portions (region Ta) of the buffer member 22 are set. Is configured to be rigid. In other words, at the time of a light collision, the projecting portion 25 is elastically deformed to absorb the collision load, thereby mitigating the impact received by the collided body. For a larger collision load than at the time of a light collision, the collision load is quickly crashed. The collision load is absorbed by transmitting to the can 4 and plastically deforming the crash can 4. And about the both ends of the buffer member 22, since the up-and-down width of the base part 24 is formed largely and is curving (it inclines in the vehicle back), a pedestrian etc. at the time of the light collision with respect to a pedestrian It is designed to reduce the impact.

  As described above, the bumper rain 6 has a curved shape in plan view so that the center in the vehicle width direction protrudes forward from both ends. Specifically, the bumper rain 6 is input with a collision load from the front of the vehicle. Thus, before the bumper rain 6 is deformed rearward of the vehicle and interferes with auxiliary equipment such as the radiator 16, the transmission of the collision load from the radiator 16 to the crash can 4 or the like (corresponding to the frame member of the present invention) is started. It is formed so that.

  The bumper fascia 10 constitutes a relatively wide range of the outer surface of the front end portion of the vehicle 1. As shown in FIG. 1, a laterally long opening (corresponding to the outside air inlet of the present invention) for introducing running wind (outside air) into the engine room 14 is formed at the center in the vehicle width direction of the bumper fascia 10. Has been. Specifically, the bumper fascia 10 is integrally provided with a belt-like bumper cover 11 located in front of the bumper rain 6 and extending in the vehicle width direction at a substantially central portion of the bumper fascia 10. The upper opening 10a located on the upper side and the central opening 10b located on the lower side are provided, and the lower side of the central opening 10b is further lower in the vehicle width direction than the openings 10a and 10b. A side opening 10c is provided. As a result, while the vehicle 1 is traveling, the traveling wind is introduced from the upper opening 10a to the radiator 16 through the bumper rain 6, and the traveling wind is introduced from the central opening 10b and the lower opening 10c. However, it passes through the lower part of the bumper rain 6 and reaches the radiator 16. Thus, cooling of the radiator 16 is accelerated | stimulated because driving | running | working wind is introduce | transduced from opening part 10a-10c.

  As shown in FIG. 2, the bumper cover 11 is formed so that its vertical width is substantially equal to the vertical width of the front member 7a, and in the state facing the front member 7a of the bumper rain 6 with the buffer member 22 in between. It is provided substantially parallel to the front member 7a. Thereby, the protrusion part 25 of the buffer member 22 is arrange | positioned adjacently in the state which opposes the position of the lower end part vicinity among the inner surfaces of the bumper cover 11. FIG. Of the bumper facer 10, a portion above the bumper cover 11, that is, the grill portion 12 in which the upper opening 10 a is formed protrudes forward of the bumper cover 11.

  As shown in FIG. 1, a pair of left and right lamp openings 10d for installing a fog lamp unit (not shown) is formed at both ends of the bumper fascia 10 in the vehicle width direction.

  Although not shown in detail, the entire bumper fascia 10 is curved so that the shape along the bumper rain 6 and the buffer member 22, that is, in the plan view, the center in the vehicle width direction projects forward from the both ends. Has the shape.

  A pair of left and right partition members 34 are provided between the inner surface of the bumper fascia 10 and the bumper rain 6. The pair of left and right partition members 34 prevent the traveling wind introduced from the openings 10 a to 10 c from escaping in the vehicle width direction around the radiator 16, particularly along the buffer member 22. Thus, the traveling wind introduced from the openings 10 a to 10 c is effectively used for cooling the radiator 16.

  Although not shown in detail, groove portions 25a extending in the vertical direction are formed in the vicinity of both ends of the protruding portion 25 of the buffer member 22, and the partition member 34 is provided in a state of being interposed in these groove portions 25a. It has been. That is, the buffer member 22 has a length in the vehicle width direction that is longer than the interval between the pair of partition members 34, and the protruding portion 25 extends to the outside of the partition members 34. With this configuration, the traveling wind introduced from the openings 10a to 10c is guided to the radiator 16 and the like by the both partition members 34, while the gap formed in the partition member 34 itself, the partition member 34 and the buffer member 22 are formed. A running wind (leakage) leaking from the gap formed between the two and the vehicle width direction outside is guided to the vehicle width direction outside along the protruding portion 25 (portion outside the pair of partition members 34). By doing so, the leaked air is prevented from flowing turbulently in the vertical direction outside the partition member 34 and becoming running resistance.

  Next, the effect by the front structure of the vehicle 1 as described above will be described.

  According to the front structure of the vehicle 1 as described above, at the time of a light collision, the shock-absorbing member 22, particularly the protrusion 25, is deformed, so that the impact load is absorbed and the impact received by the collision target is reduced. In this case, the buffer member 22 has a substantially L-shaped cross section including the base portion 24 extending in the vertical direction and the protruding portion 25 extending from the lower end portion to the front of the vehicle as described above, and is seen from the front of the vehicle 1. In this state, the central portion in the vehicle width direction of the projecting portion 25 has a shape that is slightly bent downward, so that it is easily bent downward in a light collision. In addition, since the cushioning member 22 is provided so that the protruding portion 25 is positioned at the lower end portion of the bumper rain 6, the protruding portion 25 can tilt downward from the front surface of the bumper rain 6. Therefore, even when the length of the protrusion 25 in the front-rear direction is set to be relatively long from the viewpoint of protecting the collided object, the protrusion 25 is moved downward and outward from the front surface of the bumper rain 6 as shown in FIG. By deforming so as to incline, the buffer member 22 bottoms out at an early stage at the time of collision, that is, the deformation of the buffer member 22 (projecting portion 25) between the collided object and the bumper rain 6 can maintain the resilience. It is effectively suppressed that the state exceeds the maximum deformation amount. Moreover, in the front structure of the vehicle 1, as described above, the buffer member 22 is fixed to the flat front surface of the bumper rain 6 (front member 7 a). Is not required to be provided on the bumper rain 6. Therefore, according to the front structure of the vehicle 1, the bumper rain 6 has a disadvantage that the bumper rain 6 is deformed and damages the radiator 16 and the like due to the bottom of the buffer member 22 at a relatively early stage during a light collision. There is an advantage that it can suppress without providing a simple shape, ie, without providing a recessed part like the past (patent documents 2).

  In particular, the bumper rain 6 has a shape curved in plan view so that the vehicle width direction center portion protrudes forward from both ends. Specifically, as described above, the bumper rain 6 is input by a collision load input from the front of the vehicle. Before the bumper rain 6 is deformed rearward and interferes with the radiator 16 or the like, the transmission of the collision load from the bumper rain 6 to the frame member is started. It is possible to effectively suppress the inconvenience that the bumper rain 6 is immediately deformed to damage the radiator 16 and the like.

  Further, in the front structure of the vehicle 1, since the center region in the vehicle width direction of the base portion 24 of the buffer member 22 is recessed downward as viewed from the front of the vehicle, the collision object and the bumper rain 6 The remaining crushing amount of the buffer member 22 is reduced. Therefore, there also exists an advantage that it can suppress more effectively that the buffer member 22 bottoms out at the early stage at the time of a collision.

  Further, in the front structure of the vehicle 1, the position of the bumper cover 11 is set so that the protruding portion 25 faces the position in the vicinity of the lower end portion of the inner surface of the bumper cover 11. Since the grill portion 12 located on the upper side of the bumper protrudes forward of the bumper cover 11 relative to the bumper cover 11, there is an advantage that the protruding portion 25 can be more reliably tilted to the lower outer side of the bumper rain 6 at the time of a collision. That is, at the time of a collision, first, the grill portion 12 is brought into contact with the collision object and deformed rearward of the vehicle, and accordingly, the bumper cover 11 is deformed so as to tilt toward the rear of the vehicle. Then, as shown by a broken line in FIG. 5, as a result of the bumper cover 11 being tilted, the projecting portion 25 is restrained from the upper side, and as a result, the projecting portion 25 tilts to the lower outer side of the bumper rain 6. Therefore, at the time of a collision, the protruding portion 25 can be more reliably tilted to the lower outside of the bumper rain 6.

  Moreover, according to the front part structure of the vehicle 1, the buffer member 22 so that the protruding part 25 is positioned in front of the flange part 71 below the rear member 7 b in the front surface (front member 7 a) of the bumper rain 6. Therefore, also in this respect, the protrusion 25 can be more reliably tilted downward and outward from the front surface of the bumper rain 6. That is, assuming that the protruding portion 25 receives a horizontal compressive load until the bottomed state, in this case, as shown in FIG. 6, the portion of the rear member 7 b of the bumper rain 6 is bent backward, As a result, the protruding portion 25 tilts downward. Therefore, it becomes possible to tilt the protrusion 25 more reliably.

  Further, in the front structure of the vehicle 1, the buffer member 22 is fixed to the bumper rain 6 (front member 7 a) by a pair of fixing boss portions 26 provided at positions outside the center in the vehicle width direction. The buffer member 22 abuts against the bumper rain 6 in a non-fixed state at the center in the vehicle width direction. Therefore, at the center in the vehicle width direction, at the time of a collision, the buffer member 22 is smoothly tilted to the lower outer side of the bumper rain 6 while being twisted. Therefore, also in this respect, there is an advantage that the protruding portion 25 can be tilted more reliably.

  Further, according to the front structure of the vehicle 1, when the light collision with the pedestrian, the protruding portion 25 of the buffer member 22 tilts downward (bends) as described above, so that the elastic force is increased. It will act as a force to jump up the leg of the. That is, at the time of a light collision with a pedestrian, in addition to the pedestrian's footing by the lower stiffener 30, the above-mentioned pedestrian's footing is promoted by the force that jumps up the leg by the protrusion 25 acting on the pedestrian. . Therefore, at the time of a light collision with a pedestrian, the pedestrian can be removed more reliably and promptly, and the pedestrian can be received on the hood, so that the pedestrian is caught in the bottom of the vehicle 1. There is an advantage that it can be prevented to a higher degree.

  The front structure of the vehicle 1 described above is an example of a preferred embodiment of the front structure of the vehicle according to the present invention, and the specific structure is appropriately changed without departing from the gist of the present invention. Is possible.

  For example, in the above embodiment, the buffer member 22 has a substantially L-shaped cross section in which the protruding portion 25 protrudes forward from the lower end of the front surface of the base portion 24, and the protruding portion 25 is formed at the lower end portion of the front surface of the bumper rain 6. Although arranged so as to be positioned, as shown in FIG. 7, the base 25 has a substantially L-shaped cross section in which the protrusion 25 protrudes forward from the front upper end of the base portion 24, as shown in FIG. The protrusion 25 may be provided so as to be positioned at the upper end of the bumper rain 6. That is, the protrusion 25 may tilt upward and outward from the front surface of the bumper rain 6 at the time of collision. Even in such a structure, it is possible to enjoy the same operational effects as the above-described embodiment (excluding the effect of jumping up the legs by the protruding portions 25).

  In this case, as shown in FIG. 7, after setting the position of the bumper cover 11 so that the protruding portion 25 faces the position near the upper end portion of the inner surface of the bumper cover 11 of the bumper fascia 10, Furthermore, it is preferable to provide a projecting portion 13 such as a grill portion projecting forward of the vehicle from the bumper cover 11 below the bumper cover 11. According to this configuration, at the time of a collision, first, the projecting portion 13 abuts on the collided body and is deformed rearward of the vehicle, and accordingly, the bumper cover 11 is deformed so as to tilt rearward of the vehicle. Then, as a result of the bumper cover 11 being tilted, the projecting portion 25 is pushed up from the lower side, and as a result, the projecting portion 25 tilts to the upper outer side of the bumper rain 6. Therefore, at the time of a collision, the protrusion 25 can be more reliably tilted to the upper outside of the bumper rain 6.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Front side frame 3 Crash can 6 Bumper reinforcement 7a Front side member 7b Rear side member 10 Bumper facer 11 Bumper cover 22 Buffer member 24 Base part 25 Protrusion part

Claims (4)

A bumper reinforcement that extends in the vehicle width direction and has both ends supported by a frame member from the rear of the vehicle; a buffer member that is fixed to the front surface of the bumper reinforcement and extends in the vehicle width direction along the bumper reinforcement; and the bumper An auxiliary machine arranged on the vehicle rear side of the reinforcement,
The shock-absorbing member has a base portion along the front surface of the bumper reinforcement, and a protruding portion that forms a plate shape extending from the base portion toward the front of the vehicle and can be deformed in the vertical direction.
The vehicle front structure according to claim 1, wherein the protruding portion is positioned on one end side in the vertical direction of the front surface of the bumper reinforcement and is tiltable outward from the front surface of the bumper reinforcement. The vehicle front structure according to claim 1,
The bumper reinforcement and the cushioning member have a curved shape so that the center in the vehicle width direction protrudes forward of the vehicle from both ends,
In the bumper reinforcement, the collision from the bumper reinforcement to the frame member before the bumper reinforcement is deformed rearward by the input of a collision load from the vehicle and interferes with the auxiliary equipment. A front structure of a vehicle, characterized in that it is configured to start transmission of a load. In the vehicle front structure according to claim 1 or 2,
The front structure of the vehicle, wherein the base portion is formed so that a vertical width in a predetermined range including a central portion in the vehicle width direction is smaller than a vertical width outside the predetermined range in the vehicle width direction. . In the front structure of the vehicle according to any one of claims 1 to 3,
An exterior member disposed in front of the cushioning member and having an outside air inlet at the center in the vehicle width direction;
A pair of partition members that are arranged at a predetermined interval in the vehicle width direction on the rear side of the exterior member, and suppress the outside air introduced from the outside air introduction port from flowing outward in the vehicle width direction,
The front portion of the vehicle, wherein the buffer member has a length in a vehicle width direction that is longer than an interval between the pair of partition members, and the protruding portion extends to the outside of the pair of partition members. Construction.

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