JP5061871B2 - Vehicle front structure - Google Patents

Description

  The present invention relates to a front structure of a vehicle, and in particular, a vehicle width direction intermediate portion of a bumper reinforcement is retracted from a connection portion with a pair of front side frames, and a shock absorbing member is disposed on the front side of the vehicle width direction intermediate portion. Is provided.

  Generally, in the front structure of a vehicle such as an automobile, the front end of the passenger compartment is partitioned by a dash panel (the passenger compartment and the engine compartment), and a pair of left and right front side frames extend forward from the dash panel. A bumper reinforcement that is long in the vehicle width direction (hereinafter referred to as “bumper rain”) is attached to the front end side of the front side frame of the vehicle, and this bumper rain is covered with a bumper member that forms the front exterior surface of the vehicle (for example, patent References 1-3).

  In many cases, the bumper train is curved slightly in a convex manner on the whole, but including such a bumper train, the bumper train is basically formed so as to extend substantially straight in the vehicle width direction. Also, a pair of crash cans that can absorb a collision load is attached to the front end portions of a pair of front side frames, and a bumper rain is connected to the pair of crash cans.

  Here, the applicant of the present invention forms a recess recessed backward in the center part of the dash panel (dash lower panel) in the vehicle width direction, the rear end of the engine is accommodated in the recess, and the engine is positioned more than the axle position of the front wheel. A vehicle in which an engine is rearwardly arranged in an engine room so as to be located rearward has been put into practical use (see Patent Documents 1 to 3, etc.).

  In the front structure of a vehicle in Patent Documents 1 and 3, an intermediate cross member extending in the vehicle width direction on the rear side of the bumper rain is attached to a pair of front side frames. In the structure in Patent Document 1, a radiator is disposed behind the bumper rain. Is arranged in a forward leaning posture, a battery is disposed above the intermediate cross member, and in the structure of Patent Document 3, a front trunk box is disposed between the bumper rain and the intermediate cross member. In the front structure of the vehicle disclosed in Patent Documents 2 and 3, a radiator is disposed in a vertical posture immediately in front of the engine at a position relatively spaced rearward from the bumper rain, and an air cleaner is disposed in front of the engine and above the radiator. ing.

JP 2003-326981 A JP 2005-28911 A JP 2005-29057 A

  In the conventional front structure of a vehicle, since the bumper rain is formed so as to extend substantially straight in the vehicle width direction, there is a limit in retracting the position of the connection portion between the pair of front side frames of the bumper rain. Therefore, it is limited to retreating the center of gravity of the heavy bumper rain, shortening the front overhang, reducing the yaw moment of inertia of the vehicle, improving the steering stability (handling performance) of the vehicle, etc. There is.

  In vehicles where the engine is placed rearward in the engine compartment so that the engine is located behind the axle position of the front wheels, the yaw moment of inertia is reduced and steering stability is improved. However, the above problem is an obstacle.

  Further, in the conventional front structure of the vehicle, the bumper rain is formed so as to extend substantially straight in the vehicle width direction, and there is a limit in retracting the position of the connecting portion of the bumper rain with the pair of front side frames. The dead space in the front-rear direction may become large in the engine room, and this problem becomes particularly noticeable when the engine is arranged in the engine room so that the engine is located behind the front wheel axle position. There is also a problem that the degree of freedom of design including the shape of the bumper member that forms the front exterior surface of the vehicle is small.

  Therefore, the inventor of the present application is a part of the present invention, but in the front structure of the vehicle, the intermediate portion in the vehicle width direction between the connection portion of the bumper rain with the pair of front side frames is more than the connection portion. When we examined the practical application of the retreated structure, we focused on the fact that there is room for improvement from the viewpoint of protecting obstacles such as pedestrians, and created a technical improvement.

  The object of the present invention is to retract the center of gravity of a bumper reinforcement that is a heavy object in the front structure of the vehicle, partially shorten the front overhang, reduce the yaw moment of inertia of the vehicle, Improving vehicle handling stability (handling performance), reducing the dead space in the front-rear direction of the engine room, improving the design freedom including the shape of the bumper member that forms the front exterior surface of the vehicle, Further, an impact absorbing member is disposed between the connecting portion of the bumper reinforcement with the pair of front side frames and at the front side of the intermediate portion in the vehicle width direction which is retracted from the connecting portion, thereby To improve the safety of collision by protecting the object.

The front structure of the vehicle according to claim 1 is attached to a dash panel that partitions the front end of the passenger compartment, a pair of left and right front side frames extending forward from the dash panel, and a front end side of the pair of front side frames. A vehicle front structure comprising a bumper reinforcement that is long in the vehicle width direction and a bumper member that covers the bumper reinforcement, the bumper reinforcement being connected to a pair of front side frames have the vehicle width direction intermediate portion which is recessed from connecting portion between parts, intermediate receding portion is provided to retract than entirely the connecting portion in the vehicle width direction intermediate portion, of the intermediate setback An impact absorbing member for protecting a collision object such as a pedestrian from directly hitting the bumper reinforcement is disposed on the front side.

  Since the bumper reinforcement has an intermediate portion in the vehicle width direction that is retracted from the connecting portion between the connecting portions with the pair of front side frames, the center of gravity of the bumper reinforcement that is a heavy load is retracted. The front overhang at the center in the vehicle width direction is shortened, the yaw moment of inertia of the vehicle is reduced, and the steering stability (handling performance) of the vehicle is improved. Since the shock absorbing member is arranged on the front side of the middle part in the vehicle width direction, the impact absorbing member is received by the shock absorbing member so that an obstacle such as a pedestrian does not directly hit the middle part in the vehicle width direction when the vehicle collides. It is absorbed and the obstacles are protected to improve the collision safety.

The following configuration can be adopted as a dependent claim of claim 1.
A license plate is attached to the front surface of the shock absorbing member. The license plate is attached so as to project forward from the foremost end position of the bumper reinforcement.

The intermediate retraction unit is retracted so as to be located rearward of the front end description of front side frames (claim 4). The bumper member has a bumper member intermediate retracted portion that is retracted along the intermediate retracted portion.

  The bumper reinforcement has an outer receding portion that is receded so as to be positioned rearward of the connecting portion on the outer side in the vehicle width direction of the connecting portion. A power train is disposed in front of the dash panel and between the pair of front side frames. A plate mounting member is provided instead of the impact absorbing member.

According to the front structure of the vehicle of claim 1, the bumper reinforcement has an intermediate portion in the vehicle width direction that is retracted from the connecting portion between the connecting portions with the pair of front side frames. Even if there is a limit in retreating the position of the connecting part, the center of gravity of the bumper reinforcement, which is a heavy object, can be retreated to shorten the front overhang in the center part in the vehicle width direction, so the yaw inertia of the vehicle Moment can be reduced, vehicle handling stability (handling performance) can be improved, dead space in the front-rear direction of the engine room can be reduced, and design freedom including the shape of the bumper member that forms the front exterior surface of the vehicle the improved, further, the intermediate receding portion is provided to retract than whole connecting portion in the vehicle width direction intermediate portion, a collision object such as a pedestrian in front of the middle retreating section is the bus Having provided an impact absorbing member for protecting avoid exposure directly Pas reinforcement, by effectively utilizing the recessed space to the front side of the rear of the vehicle width direction intermediate portion in the arrangement of the shock absorbing member, the vehicle At the time of a collision, an obstacle such as a pedestrian can be received by the impact absorbing member so that the obstacle does not directly hit the intermediate portion in the vehicle width direction, so that the impact can be absorbed and the obstacle can be protected to improve the collision safety.

  According to the vehicle front structure of claim 2, since the license plate is attached to the front surface of the impact absorbing member, the impact absorbing member can be effectively used for attaching the license plate so that the visibility of the license plate is improved. The license plate can be disposed, and the front side of the shock absorbing member can be covered with the license plate.

  According to the vehicle front structure of claim 3, since the license plate is mounted so as to protrude forward from the frontmost end position of the bumper reinforcement, the license plate is improved so that the visibility of the license plate is improved. In order to prevent the obstacle from directly hitting the bumper reinforcement at the time of a vehicle collision, the function of the shock absorbing member that receives the obstacle and absorbs the shock is further improved through the license plate. be able to.

According to the front structure of the vehicle according to claim 4, intermediate receding portion, since the retreat so as to be located rearward of the front end description of front side frame, is further retracted position of the center of gravity of the bumper reinforcement Thus, it is possible to further reduce the front overhang at the center portion in the vehicle width direction, reduce the yaw moment of inertia of the vehicle, improve the steering stability of the vehicle, and improve the flexibility of the design of the bumper member. Since the shock absorbing member is arranged on the front side of the intermediate receding part, the thickness in the front-rear direction that can sufficiently exert the shock absorbing function without protruding the shock absorbing member to the front of the front end position of the bumper reinforcement. It can be formed and provided.

  According to the front structure of the vehicle of claim 5, the bumper member has the bumper member intermediate retracted portion that is retracted along the intermediate retracted portion, so that the vehicle width direction central portion of the bumper member is recessed backward, The design of the bumper member can be improved.

  According to the front structure of the vehicle of claim 6, the bumper reinforcement has an outer receding portion that is receded so as to be positioned rearward of the connecting portion on the outer side in the vehicle width direction than the connecting portion. Therefore, the position of the center of gravity of the bumper reinforcement can be further retracted to shorten the front overhang at both ends in the vehicle width direction, reducing the yaw moment of inertia of the vehicle, improving the steering stability of the vehicle, and freedom in designing the bumper members The degree can be further improved.

  According to the front structure of the vehicle of the seventh aspect, since the power train is disposed in front of the dash panel and between the pair of front side frames, the power train has a low center of gravity, and the steering stability of the vehicle is improved. In addition, it is advantageous when the engine is disposed in the rear of the engine room so that the engine is located behind the axle position of the front wheels, thus reducing the yaw moment of inertia and improving the steering stability. It becomes possible to plan further.

  According to the vehicle front structure of the eighth aspect, since the plate mounting member is provided instead of the impact absorbing member, the plate mounting member is disposed in the space recessed in the rear of the front side in the vehicle width direction of the bumper reinforcement. The license plate can be disposed so that the license plate is attached to the front surface of the plate mounting member and the visibility of the license plate is improved.

  The vehicle front structure of the present invention includes a dash panel that partitions the front end of a vehicle compartment, a pair of left and right front side frames that extend forward from the dash panel, and a vehicle width direction that is attached to the front end side of the pair of front side frames. A bumper reinforcement covering the bumper reinforcement, and the bumper reinforcement is an intermediate portion in the vehicle width direction that is retracted from the connecting portion between the connecting portion with the pair of front side frames. And an impact absorbing member is disposed on the front side of the intermediate portion in the vehicle width direction.

  As shown in FIGS. 1 to 4, a vehicle 1 (automobile 1) includes a pair of left and right front wheels 2 and a pair of left and right rear wheels 3, and an engine 5 is mounted in an engine room 4 at the front of the vehicle 1. This is an FR vehicle in which the engine 5 drives the rear wheels 3.

  A front structure 20 of the vehicle 1 includes a dash panel 21 that partitions the front end of the compartment 6 (the compartment 6 and the engine room 4), a pair of left and right front side frames 22 that extend forward from the dash panel 21. A bumper reinforcement 23 (hereinafter referred to as a “bumper rain 23”) that is attached to the front end side of the front side frame 22 and extends in the vehicle width direction on the rear side of the bumper rain 23. An intermediate cross member 25 mounted on a pair of front side frames 22 and an impact absorbing member 26 attached to a bumper rain 23 are provided. A license plate 27 (number plate 27) is attached to the impact absorbing member 26.

  A front end portion of a floor panel 7 that forms the floor of the passenger compartment 6 is coupled to the lower end portion of the dash panel 21, and a pair of left and right side sills 8 are coupled to both ends of the floor panel 7 in the vehicle width direction. A rear end portion of the pair of front side frames 22 extends downward along the front surface of the dash panel 21 and is coupled to the lower surface of the floor panel 7 at the lower end portion of the dash panel 21 and extends in the front-rear direction. The front end of the floor frame 9 is coupled.

  The vehicle interior 6 includes a dashboard 10, a steering wheel 11, a pair of left and right front seats 12, a pair of left and right rear seats 13, and the like. (See FIG. 4). Note that reference numeral 15 in FIG. 4 denotes a pair of left and right headlamps, and reference numeral 16 in FIG. 4 denotes a pair of left and right side mirrors.

The front structure 20 of the vehicle 1 will be described in detail.
The engine room 4 is formed in a portion surrounded by a dash panel 21, a pair of left and right front apron members 30 coupled to the dash panel 21, a bumper member 24, and the like, and is opened and closed by a bonnet 31. The bonnet 31 has a rear end hinged to a cowl member (not shown) on the upper end side of the dash panel 21 and is pivoted up and down around the rear end to open and close.

  A pair of crash cans 28 capable of absorbing a collision load are attached to the front end portions of the pair of front side frames 22, and a middle portion capable of absorbing the collision load at a front end portion of the middle portion of the intermediate cross member 25 in the vehicle width direction. A crash can 29 is attached, and a bumper rain 23 is connected to the crash cans 28 and 29.

  The bumper rain 23 has a connecting portion 23 a (connected to the pair of front side frames 22) with the pair of front side frames 22 and a pair of left and right frame front sides located on the front side of the pair of front side frames 22. The vehicle width direction intermediate portion 23c between the portion 23b and the pair of connecting portions 23a (the frame front side portion 23b), and a pair of left and right vehicle widths outside the pair of the connecting portions 23a (the frame front side portion 23b) in the vehicle width direction. It has a direction outer side portion 23d.

  The pair of frame front side portions 23b is the foremost end portion of the bumper rain 23, and is formed, for example, such that its front end face faces forward. The vehicle width direction intermediate portion 23c is formed so as to be retracted as a whole from the connecting portion 23a, and has an intermediate retracted portion 23e that is retracted so as to be positioned rearward of the front end portion of the front side frame 22.

  The vehicle width direction intermediate portion 23c is connected to the left and right inclined portions extending substantially straight inward and rearward in the vehicle width direction from the pair of frame front side portions 23b at the center in the vehicle width direction, and opens forward in plan view. It is formed in a V-shape, and the connecting portion and its vicinity become an intermediate retreat portion 23e, and an intermediate cross member 25 is disposed a little rearward from the intermediate retraction portion 23e, so that the intermediate retraction portion 23e and the intermediate cross member 25 are disposed. Are connected via an intermediate crash can 29.

  The pair of vehicle width direction outer side portions 23d includes an outer retreating portion 23f that is retreated so as to be located rearward of the connecting portion 23a. The pair of vehicle width direction outer side portions 23d are formed of left and right inclined portions extending substantially straight outward and rearward in the vehicle width direction from the pair of frame front side portions 23b, respectively.

  As described above, the bumper rain 23 has an M-shape that is extended in the vehicle width direction in plan view by the pair of frame front side portions 23b, the vehicle width direction intermediate portion 23c, and the pair of vehicle width direction outer side portions 23d. Is formed. The bumper rain 23 has a closed cross-sectional structure, for example, by hydroforming or by joining two members. A bumper rain having an open cross-sectional structure with a U-shaped cross section may be adopted as the bumper rain 23.

  The bumper member 24 extends forward so as to be substantially continuous from the pair of front apron members 30 and the bonnet 31 to form a front exterior surface of the vehicle 1. A portion of the bumper member 24 positioned on the front side of the bumper rain 23 is The shape is generally formed along the bumper rain 23. In addition to the impact absorbing member 26, a buffer member made of urethane foam or the like may be attached to the bumper rain 23 between the bumper rain 23 and the bumper member 24.

  That is, the bumper member 24 includes a pair of bumper member frame front side portions 24b and a bumper member vehicle width corresponding to the pair of frame front side portions 23b, the vehicle width direction intermediate portion 23c, and the pair of vehicle width direction outer side portions 23d. The direction intermediate portion 24c has a pair of bumper member vehicle width direction outer side portions 24d, and the bumper member vehicle width direction intermediate portion 24c corresponds to the intermediate retracted portion 23e, that is, retracted along the intermediate retracted portion 23e. A bumper member intermediate retreating portion 24e is provided.

  The shock absorbing member 26 is formed of an energy absorbing member (so-called EA material) and is disposed on the front side of the vehicle width direction intermediate portion 23 c including the intermediate retracted portion 23 e of the bumper rain 23. The shock absorbing member 26 is formed in a base shape in plan view and has a vehicle width direction length shorter than the distance between the pair of front side frames 22 (for example, about 1/2 to 2/3). Then, the vehicle width direction center is made to coincide with the vehicle width direction center of the bumper rain 23, and the rear end inclined surface is attached to the bumper rain 23 in the vehicle width direction intermediate portion 23c.

  The shock absorbing member 26 extends through the bumper member vehicle width direction intermediate portion 24c including the bumper member intermediate retracted portion 24e of the bumper member 24 forward. A through hole 24ca of the shock absorbing member 26 is formed in the bumper member vehicle width direction intermediate portion 24c. The shock absorbing member 26 projects forward from the foremost end position (frame front side portion 23b) of the bumper rain 23, and the front surface position thereof substantially coincides with the foremost end position (bumper member frame front side portion 24b) of the bumper member 24.

  The front surface of the shock absorbing member 26 is formed as a smooth vertical surface facing the front surface, and the license plate 27 is further extended so that the front surface faces the front surface and projects forward from the frontmost end position of the bumper rain 23. The front end of the member 24 is attached to the front surface of the shock absorbing member 26 so as to protrude forward.

  As shown in FIG. 5, the shock absorbing member 26 is attached to the bumper rain 23 and the license plate 27 is attached to the shock absorbing member 26 with a plurality of (for example, a pair of left and right) bolts 26a. The license plate 27 is fastened to the front surface of the bumper rain 23, and is bonded to the front surface of the shock absorbing member 26 with an adhesive 27a. The shock absorbing member 26 is formed with mounting holes 26b for a plurality of bolts 26a from the front side. The impact absorbing member 26 and the bumper rain 23 may be further bonded with an adhesive.

  The surface of the shock absorbing member 26 may be covered with a flexible synthetic resin film or the like. The vertical width and the width in the vehicle width direction of the shock absorbing member 26 are matched with the same width of the license plate 27, but it is not necessary to do so. For example, the front side frame 22 is reduced by reducing the vertical width of the shock absorbing member 26. The width in the vehicle width direction of the shock absorbing member 26 is enlarged to be substantially the same as the width between the pair of connecting portions 23a, and so on. Various widths can be set.

  In the engine room 4, the engine 5, which is a power train, is largely below the upper end of the front side frame 22 in front of the dash panel 21, behind the intermediate cross member 25, and between the pair of front side frames 22. It arrange | positions so that it may become a position. A concave portion 21a that is recessed rearward is formed in the vehicle width direction center portion of the dash panel 21, and the rear end portion of the engine 5 is accommodated in the concave portion 21a so that the engine 5 is positioned rearward of the axle position of the front wheel 2. It is arranged behind the engine room 4.

  The driving force of the engine 5 is transmitted to the pair of rear wheels 3 through the transmission 40, the propeller shaft 41, the differential device 42, and the pair of left and right rear axles 43. The transmission 40, the propeller shaft 41, etc. The panel 7 is disposed inside (on the lower surface side) an upward convex tunnel portion (not shown) formed at the center in the vehicle width direction.

  A suspension cross member 45 for supporting a front suspension (not shown), a power steering device 46 for steering the front wheels 2, and a cooling unit 47 having a radiator and a cooling fan are disposed on the lower end side of the engine room 4. .

  The cooling unit 47 has a width in the vehicle width direction that is substantially the same as the distance between the pair of front side frames 22, is located below the front side frame 22, and has an intermediate retracted portion 23 e and an intermediate cross member 25 of the bumper rain 23. On the lower side, the suspension cross member 45 and the power steering device 46 are disposed in a rearward tilting posture so as not to interfere with each other.

  Although not shown, an air introduction port for introducing running air is formed in the bumper member 24 in order to cool at least the radiator of the cooling unit 47, and further, the running air is sent from the air introduction port to the cooling unit 47. An air duct for guiding may be provided. In the engine room 4, vehicle equipment such as an oil cooler, an air cleaner, and a battery (not shown) are arranged in a predetermined arrangement.

The front structure 20 of the vehicle 1 described above has the following effects.
Since the bumper rain 23 has a vehicle width direction intermediate portion 23c that is retracted from the connecting portion 23a between the connecting portions 23a to the pair of front side frames 22, there is a limit in retracting the position of the connecting portion 23a. However, the position of the center of gravity of the bumper rain 23, which is a heavy object, can be retracted to shorten the front overhang at the center in the vehicle width direction. Performance), the dead space in the front-rear direction of the engine room 4 can be reduced, and the degree of freedom of design including the shape of the bumper member 24 forming the front exterior surface of the vehicle 1 can be improved. .

  In particular, in this vehicle 1, the engine 5 is positioned rearward of the axle position of the front wheels 2 and is disposed rearward in the engine room 4 with a low center of gravity, thereby reducing the yaw moment of inertia and improving the steering stability. However, this improvement can be further achieved by the vehicle width direction intermediate portion 23c of the bumper rain 23, and the rear placement of the engine 5 allows the conventional bumper rain in the engine room 4 to be dead in the front-rear direction. Although the space tends to increase, the above-described effect can be exhibited while reliably reducing the dead space.

  Further, since the shock absorbing member 26 is disposed on the front side of the vehicle width direction intermediate portion 23c of the bumper rain 23, the space recessed rearward on the front side of the vehicle width direction intermediate portion 23c is effectively used for the arrangement of the shock absorbing member 26. In the event of a vehicle collision, an impact absorbing member 26 can be used to absorb the impact so that an obstacle such as a pedestrian does not directly hit the intermediate portion 23c in the vehicle width direction. Can be improved.

  Since the license plate 27 is attached to the front surface of the impact absorbing member 26, the impact absorbing member 26 can be effectively used for attaching the license plate 27, and the license plate 27 can be disposed so that the visibility of the license plate 27 is improved. The license plate 27 can also cover the front side of the shock absorbing member 26.

  Since the license plate 27 is mounted so as to project forward from the frontmost end position of the bumper rain 23 and further forward from the frontmost end position of the bumper member 24, the license plate 27 is licensed so that the visibility of the license plate 27 is improved. The plate 27 can be disposed, and the function of the shock absorbing member 26 that receives the obstacle and absorbs the shock through the license plate 27 is further improved so that the obstacle does not directly hit the bumper rain 23 at the time of the vehicle collision. It can be demonstrated. Note that it is not essential to attach the license plate 27 to the shock absorbing member 26.

  The bumper rain 23 has an intermediate retreat portion 23e that is retreated so as to be located behind the front end portion of the front side frame 22 in the vehicle width direction intermediate portion 23c. It is possible to further reduce the front overhang in the central portion in the width direction, reduce the yaw moment of inertia of the vehicle 1, improve the steering stability of the vehicle 1, and improve the flexibility of the design of the bumper member 24. Since the shock absorbing member 26 is disposed on the front side of the intermediate receding portion 23e, the thickness in the front-rear direction can sufficiently exert the shock absorbing function without causing the shock absorbing member 26 to protrude largely forward from the frontmost end position of the bumper rain 23. It can be formed and provided.

  The bumper rain 23 has an outer retreating portion 23f that is retreated so as to be located rearward of the connecting portion 23a in the vehicle width direction outer side portion 23d of the connecting portion 23a. The front overhang at both ends in the vehicle width direction can be shortened, the yaw moment of inertia of the vehicle 1 can be reduced, the steering stability of the vehicle 1 can be improved, and the degree of freedom in designing the bumper member 24 can be further improved.

  Since a pair of crash cans 28 capable of absorbing a collision load is attached to the front end portions of the pair of front side frames 22, and the bumper rain 23 is connected to the pair of crash cans 28, an intermediate retreating portion 23e of the bumper rain 23 is further provided. Since the intermediate cross member 25 and the intermediate cross member 25 are connected via the intermediate crush can 29 capable of absorbing the collision load, the impact absorption performance can be improved and the collision safety can be improved.

  Since the frame front side portion 23b, which is the foremost end portion of the bumper rain 23, has a connecting portion 21a, the position of the connecting portion 21a is not retracted from the conventional position, but the center of gravity of the bumper rain 23 is retracted, thereby causing a front overhang. It can be partially shortened, and when a collision occurs, the collision weight is often input from the frame front side portion 23b of the bumper rain 23. Therefore, the function of the crash can 29 is surely exhibited to improve the collision safety. Can do.

  Since the bumper member 24 has a bumper member intermediate retracted portion 24e that is retracted along the intermediate retracted portion 23e of the bumper rain 23, the central portion of the bumper member 24 in the vehicle width direction is recessed backward, and the design of the bumper member 24 is improved. Can be increased.

  Since the engine 5, which is a power train, is disposed in front of the dash panel 21 and between the pair of front side frames 22, the engine 5 has a low center of gravity to further improve the steering stability of the vehicle 1. This is advantageous when the engine 5 is disposed in the rear of the engine room 4 so that the engine 5 is located rearward of the axle position of the front wheel 2, thus further reducing the yaw moment of inertia and improving the steering stability. It becomes possible to plan.

  Since it has an intermediate cross member 25 that extends in the vehicle width direction on the rear side of the bumper rain 23 and is attached to a pair of front side frames 22, the vehicle width direction intermediate portion 23 c of the bumper rain 23 is connected to the intermediate cross member 25. The intermediate cross member 25 enhances the torsional rigidity of the vehicle 1 of the vehicle 1 and, at the time of a vehicle collision, the collision load input to the bumper rain 23 is transmitted from the front end side to the pair of front side frames 22 and the intermediate cross member 25 It is transmitted to the member 25 and transmitted from the intermediate cross member 25 to the middle part of the pair of front side frames 22 in the longitudinal direction. Therefore, the dispersibility of the collision load from the bumper rain 23 is increased, and the bumper rain 23 is intermediate in the vehicle width direction. The part 23c is prevented from being damaged due to improper bending, etc., and impact safety as well as collision safety The can be improved, it can also be effectively utilized an intermediate cross member 25 for connecting supporting various vehicle accessory.

  Next, a front structure of a vehicle in which the configuration of the main embodiment is partially changed will be described. However, the same or similar components as those in the main embodiment will be described with the same or similar reference numerals, detailed description will be omitted as appropriate, and the basically same effects as those in the main embodiment will be described. Is omitted.

1] In the vehicle front structure 20A of Modification 1 shown in FIG. 6, the mounting plate 50 is bonded to the front surface of the shock absorbing member 26 with an adhesive 50a. The license plate 27 is fastened to the mounting plate 50 with a plurality of bolts 51.

  That is, the license plate 27 can be detachably attached to the front surface of the shock absorbing member 26 via the mounting plate 50 with a plurality of bolts 51. Therefore, the license plate 27 can be newly attached or replaced, or other maintenance can be performed. It is possible to easily attach and detach the license plate 27 when performing.

2] As shown in FIGS. 7 to 9, the front structure 20B of the vehicle according to the second modification is a foot wiper member for protecting a pedestrian disposed so as to extend in the vehicle width direction below the bumper rain 23. 55, a pair of left and right foot-fitting support members 56 that extend downward and forward from the front portions of the pair of front side frames 22 and support the foot-fitting member 55 are provided.

  The foot wiping member 55 is formed in a strip shape extending straight and horizontally in the vehicle width direction, and has substantially the same vehicle width direction length as the distance between the outer ends of the pair of front side frames 22 in the vehicle width direction. From the frame front side portion 23b including the front end position of the bumper rain 23 so that both ends in the vehicle width direction are in the same vehicle width direction position as the pair of front side frames 22 and overlap the bumper rain 23 in the front-rear direction. Is also arranged to project forward.

  The bumper member 24B has a foot wiper cover portion 24f positioned on the front side of the foot wiper member 55 at the front lower end thereof, and the foot wiper cover portion 24f is forward of the pair of bumper member frame front side portions 24b. The bumper member vehicle width direction intermediate portion 24c (particularly, the bumper member intermediate retracted portion 24e) protrudes greatly forward, and its front end portion extends straight in the vehicle width direction. The rear end of the upper surface portion 24fa is connected to the lower end of the pair of bumper member frame front side portions 24b and the bumper member vehicle width direction intermediate portion 24c.

  The cooling unit 47 </ b> B is disposed in a rearward inclined posture so as not to interfere with the suspension cross member 45 and the power steering device 46 from the lower side to the rear side of the intermediate cross member 25.

  According to the front structure 20B of the vehicle, when the pedestrian's foot hits the foot wiping member 55 at the time of a vehicle collision, the pedestrian is scooped up on the hood 31 by the foot wiping member 55. Since various vehicle equipment including the engine 5 can be arranged relatively far away from the bonnet 31, the bonnet 31 can be provided with an impact absorbing function, and at this time, a pedestrian may hit. Since the impact absorbing member 26 having a high level can absorb the impact of the pedestrian, the pedestrian can be protected and the collision safety can be improved.

3] As shown in FIGS. 10 and 11, in the vehicle front structure 20 </ b> C according to the third modification, an oil cooler 60, which is a pair of left and right vehicle auxiliaries, is provided at a position near the rear of the intermediate retreat portion 23 e of the bumper rain 23. They are arranged symmetrically. Each oil cooler 60 has substantially the same width in the vehicle width direction as the distance between the front side frame 22 and the intermediate crash can 29, and the front side frame 22, the bumper rain 23, the intermediate cross member 25, and the crash can in plan view. In a portion surrounded by 28 and 29, the front portion is arranged in a vertical posture so that it faces slightly inward and forward.

  The oil cooler 60 has an upper end located at the same height as the main part of the front side frame 22, and most of the oil cooler 60 located below the lower end of the main part of the front side frame 22. The frame 22 and the bumper rain 23 are connected and supported.

  The cooling unit 47C is located below the front side frame 22 and does not interfere with the suspension cross member 45, the power steering device 46, and the oil cooler 60 below the intermediate retreating portion 23e of the bumper rain 23 and the intermediate cross member 25. As described above, the oil cooler 60 is disposed in a backward inclined posture from the rear to the bottom.

  According to the front structure 1C of the vehicle, the oil cooler 60 is disposed in the vicinity of the rear of the intermediate retreating portion 23e of the bumper rain 23. Therefore, the position in the vicinity of the rear of the intermediate retreating portion 23e is effectively used for the arrangement of the oil cooler 60. However, the front overhang at the center in the vehicle width direction can be reliably shortened.

4] As shown in FIGS. 12 and 13, in the vehicle front structure 20 </ b> D according to the fourth modification, a portion of the intermediate cross member 25 and the pair of front side frames 22 positioned behind the intermediate cross member 25 is A pair of left and right intermediate cross connection members 65 for connecting the left and right intermediate cross connection members 65, each of which is disposed in an inclined manner so as to move outward in the vehicle width direction toward the rear.

  The front end portions of the pair of intermediate cross connecting members 65 are coupled to the center portion of the intermediate cross member 25 in the vehicle width direction so as to be adjacent to each other in the vehicle width direction, and the rear end portions of the pair of intermediate cross connecting members 65 are connected to the engine 5 The engine 5 is disposed in a portion surrounded by a dash panel 21, a pair of front side frames 22, and a pair of intermediate cross connecting members 65.

  According to the vehicle front structure 20D, the pair of intermediate cross connecting members 65 further increases the torsional rigidity of the vehicle body, and the intermediate cross member 25 and the pair of intermediate cross connecting members 65 are bumper rain when the vehicle collides. The collision load received from the vehicle 23 can be distributed and transmitted to the pair of front side frames 22, so that the dispersion of the collision load from the bumper rain 23 can be further increased. The collision load to be applied can be reliably received by one intermediate cross connecting member 65 extending in a direction close to the input direction of the collision load and transmitted to the front side frame 22, and a pair of intermediate cross connecting members 65 can be transmitted. Can be effectively used to connect and support various vehicle equipment.

5] In the vehicle front structure 20E of Modification 5 shown in FIG. 14, in the bumper member 24E, the bumper member vehicle width direction intermediate portion 24Ec omits the bumper member intermediate retracted portion 24e, and is substantially straight in the vehicle width direction. It is formed to extend. The front surface of the shock absorbing member 26E is fixed to the inner surface of the bumper member vehicle width direction intermediate portion 24Ec, and the license plate 27 is fixed to the front surface of the bumper member vehicle width direction intermediate portion 24Ec, via the bumper member vehicle width direction intermediate portion 24Ec. And attached to the front surface of the shock absorbing member 26E.

6] Although not shown in the front structure of the vehicle according to the sixth modified example, the shock absorbing member 26 (26E) is replaced with the shock absorbing member 26, but there is almost no shock absorbing function, but the same as the shock absorbing member 26. A plate mounting member is provided, and a license plate 27 is detachably mounted on the front surface of the plate mounting member with a plurality of bolts. Since this plate mounting member has almost no shock absorbing function, the license plate 27 is not further projected forward than the frontmost end position of the bumper member 24, and further forward than the frontmost end position of the bumper rain 23. It is preferable to configure so as not to overhang.

7] The front structure of the vehicle may be configured by combining the configurations of the main embodiment and the configurations of Modifications 1 to 6 if possible.

8] Other than the above, the present invention can be practiced by adding various configurations other than the above-mentioned disclosure within the scope of the present invention. The present invention is not limited to the vehicle disclosed in the embodiment, and is an FF vehicle. It is applicable to various vehicles such as.

It is a principal part plane sectional view containing the front part structure of a vehicle. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is a perspective view from the front diagonal upper side of a vehicle. It is the VV sectional view taken on the line of FIG. FIG. 6 is a diagram corresponding to FIG. FIG. 10 is a plan cross-sectional view of a main part of a front structure of Modification 2. It is the VIII-VIII sectional view taken on the line of FIG. FIG. 12 is a perspective view from the diagonally upper front side of a vehicle according to Modification 3; FIG. 10 is a plan cross-sectional view of a main part of a front structure of Modification 3. It is the XI-XI sectional view taken on the line of FIG. FIG. 10 is a plan cross-sectional view of a main part of a front structure according to Modification 4. It is the XIII-XIII sectional view taken on the line of FIG. FIG. 10 is a plan cross-sectional view of a main part of a front structure of Modification 5.

1 Vehicle 5 Engine 6 Cabin 20, 20A, 20B, 20C, 20D, 20E Front structure 21 Dash panel 22 Front side frame 23 Bumper rain (bumper reinforcement)
23a connecting portion 23c vehicle width direction intermediate portion 23d vehicle width direction outer side portion 23e intermediate retreating portion 23f outer retreating portion 24, 24B, 24E bumper member 24e bumper member intermediate retreating portion 26, 26E shock absorbing member 27 license plate

Claims (8)

A dash panel that partitions the front end of the passenger compartment, a pair of left and right front side frames that extend forward from the dash panel, and a bumper reinforcement that is long on the front end side of the pair of front side frames. , A front structure of a vehicle provided with a bumper member covering the bumper reinforcement,
The bumper reinforcement has a vehicle width direction intermediate portion that is retracted from the connection portion between the connection portions with a pair of front side frames,
An intermediate retreating part that is generally retreated from the connecting part is provided in the intermediate part in the vehicle width direction,
A front structure of a vehicle, wherein an impact absorbing member for protecting a collision object such as a pedestrian from directly hitting the bumper reinforcement is disposed in front of the intermediate retreating portion .   The vehicle front structure according to claim 1, wherein a license plate is attached to a front surface of the shock absorbing member.   The vehicle front structure according to claim 2, wherein the license plate is attached so as to protrude forward from a foremost end position of a bumper reinforcement. The intermediate retraction section, front structure for a vehicle according to claim 1, characterized in that it is retracted so as to be located rearward of the front end description of front side frames.   5. The vehicle front structure according to claim 4, wherein the bumper member includes a bumper member intermediate retracted portion that is retracted along the intermediate retracted portion.   6. The bumper reinforcement according to claim 1, further comprising an outer receding portion that is receded so as to be positioned rearward of the connecting portion at an outer side in the vehicle width direction than the connecting portion. The front structure of the vehicle according to claim 1.   The vehicle front structure according to any one of claims 1 to 6, wherein a power train is disposed in front of the dash panel and between the pair of front side frames.   The vehicle front structure according to any one of claims 1 to 7, wherein a plate mounting member is provided instead of the impact absorbing member.