• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A curved bumper member (3) at the front of the vehicle is joined to side members (2) and has a central portion (3a) projecting further forward than an end portion ( 2a), a protruding portion (31) on the outer side of the portion (2a) and curved rearward, a protruding portion (4) extending towards the member (2) and provided on an inner side of the portion (31), an end-end portion (4b) on the inner side of the portion (4) and having a flat portion (42) facing a side-face portion (22) on the outer side of the portion (4). side member (2), a protrusion (43) protruding inwards from the portion (42) and extending in the longitudinal direction, provided in the portion (42), and a slot-shaped opening (25), wherein one end of the projection (43) is inserted, provided in the lateral face portion (22).
    公开号:FR3067693A1
    申请号:FR1852775
    申请日:2018-03-29
    公开日:2018-12-21
    发明作者:Akihiro Hadano；Yoshihiro Tanabe
    申请人:Suzuki Motor Co Ltd；
    IPC主号:
    专利说明:

    FRONT VEHICLE STRUCTURE
    The present invention relates to a front structure of a vehicle.
    In a conventional vehicle front structure, a bumper member joined to front end portions of side members is arranged in the vehicle width direction, and extension portions extending outwardly in the Vehicle width direction are provided on both ends in the vehicle width direction of the bumper element. Certain vehicles including this type of front vehicle structure are configured such that, in a collision mode where an impact load of a frontal collision is applied only to the extension parts of the bumper element, the impact load is transmitted to the lateral elements via the extension parts.
    For example, in a vehicle front structure of patent documentation 1, a load receiving part is provided in an outer face in the vehicle width direction of a side member (side rail) arranged on both right sides and left, while a curved portion curving towards the rear of the vehicle is provided on an exterior portion in the vehicle width direction of a bumper reinforcement positioned on the exterior vehicle side of the element lateral. A reinforcing strut projecting towards the rear of the vehicle and arranged on the interior side of the load receiving part with a space interposed therebetween is coupled to a rear face of the curved part. In this configuration, when an impact load is entered on the outer part in the vehicle width direction of the bumper reinforcement positioned on the outer vehicle side of the side member, the impact load is transmitted to the side element through the reinforcement strut.
    Patent documentation: JP 2017-030700 A
    However, in the aforementioned conventional vehicle front structure, the load receiving portion is provided in a side rail exterior constituting the exterior face of the side rail, and is formed in a recess which is recessed inward in the direction of vehicle width from a vertical wall portion of the side rail exterior. Therefore, if the recess in the load receiving part is formed in a shallow manner, at the time of an offset collision where the impact load is applied only to the curved part of the bumper reinforcement and deforms and pushes the curved part towards the rear of the vehicle, a terminal end portion of the reinforcing strut can come out of the load receiving part. As a result, the reinforcement strut may be unable to reliably transmit the impact load to the side member. On the other hand, if the recess of the load receiving part is formed deeply, the stiffness of the outside of the side rail constituting the outside face of the side rail is reduced. As a result, at the time of a full overlap collision where the impact load is applied to a central portion of the bumper reinforcement, the side rail can warp to the interior side of the vehicle.
    The present invention has been made in view of the foregoing, and its objective is to propose a vehicle front structure which, at the instant of an offset collision on a bumper element, can allow the displacement of the two parts d the vehicle end of the bumper element towards the rear of the vehicle without adding a fixing element or a complex structure, and also, at the time of a full overlapping collision on the bumper element, can absorb an impact on a side element without hindering the deformation of the bumper element.
    To solve the above problems of the conventional technique, the present invention is a vehicle front structure including: side elements extending in a longitudinal direction of the vehicle, and arranged on both sides of a vehicle; and a bumper member extending in a vehicle width direction and arranged at a forwardmost end of the vehicle, a vehicle rear side of the bumper member being joined to the side members, the bumper member having a curved shape, a central part of the vehicle positioned between the side elements projecting more towards the front of the vehicle than terminal end portions of the side elements, and the two vehicle end parts being positioned on the outer side in the vehicle width direction of the terminal end portions of the side members, and having a curved shape curving towards the rear of the vehicle, in which: protrusions extending towards the side members from the two parts of the vehicle end of the bumper element are provided on an interior side in the direc vehicle width of the two vehicle end portions, a terminal end portion on the vehicle interior side of the projecting portion having a planar portion opposite a side face portion on the vehicle exterior side of the vehicle 'side element; a protrusion projecting more towards the interior side of the vehicle from the planar portion of the protruding part and extending in the longitudinal direction of the vehicle is provided in the planar portion; and a slot-shaped opening formed in a position corresponding to the projection, formed in the longitudinal direction of the vehicle, and into which an end end of the projection is inserted, is provided in the side face portion on the exterior side of the vehicle. the side element.
    As described above, the vehicle front structure of the present invention includes: side members extending in a vehicle longitudinal direction, and arranged on both sides of a vehicle; and a bumper member extending in a vehicle width direction and arranged at a forwardmost end of the vehicle, a vehicle rear side of the bumper member being joined to the side members, the bumper member -shocks having a curved shape, a central part of the vehicle positioned between the side elements projecting more towards the front of the vehicle than terminal end portions of the side elements, and the two vehicle end parts being positioned on the exterior side in the vehicle width direction of the terminal end portions of the side members, and having a curved shape curving towards the rear of the vehicle. Projecting portions extending to the side members from the two vehicle end portions of the bumper member are provided on an inner side in the vehicle width direction of the two vehicle end portions, a terminal end portion on the vehicle interior side of the projection having a planar portion opposite a side face portion on the vehicle exterior side of the side member; a protrusion projecting more towards the interior side of the vehicle from the planar portion of the protruding part and extending in the longitudinal direction of the vehicle is provided in the planar portion; and a slit-shaped opening formed in a position corresponding to the projection, formed lengthwise in the longitudinal direction of the vehicle, and in which an end end of the projection is inserted, is provided in the side face portion on the outside of side element vehicle.
    Therefore, in the vehicle front structure of the present invention, at the time of an offset collision which is a mode in which a collision object collides in an end portion on one side of the front portion of the vehicle. vehicle, the end portion on the vehicle exterior side of the side member, of the bumper member on the crashed side is folded inward toward the rear of the vehicle. Then, the rear end of the slit-shaped opening of the side member and the rear end of the projection of the protruding part are brought into contact together with the deformation of the bumper member. Therefore, the movement of the two vehicle end parts from the bumper to the rear of the vehicle can be allowed without adding a new fastener or complex new structure. In addition, deformation of the bumper element and deformation of the terminal end portion of the side element can also be suppressed. This elimination of deformation of the bumper element, and the like, allows the load to be transmitted smoothly to the side element, so that the deformation of the side element towards the passenger compartment can be suppressed, and damage can be reduced.
    In addition, in the vehicle front structure of the present invention, at the time of a full overlap collision which is a mode where a collision object collides in the entire face of the vehicle front end, both vehicle end portions of the bumper element rotate toward the front of the vehicle around the side face portions on the vehicle exterior side of the side elements, and the protrusions of the protrusion exit from the slot-like openings the lateral element together with the deformation of the bumper element. Since the engagement between the protrusions and the openings can be released easily and reliably, the deformation of the bumper element is not hampered, and an impact load can be absorbed by the side element, whereby the ability to reduce damage from a full overlap collision can be effectively improved. Namely, the vehicle front structure of the present invention is capable of absorbing an impact in both collision modes, including a full overlap collision and an offset collision.
    In addition, in the vehicle front structure of the present invention, the projection has a long shape extending in the longitudinal direction of the vehicle. Therefore, sufficient strength and stiffness can be guaranteed against a load in the longitudinal direction of the vehicle generated by contact with the slit-shaped opening of the side member, and the projection can be designed to be light in weight.
    Figure 1 is a perspective view of a bumper member and side members to which a vehicle front structure of an embodiment of the present invention is applied, viewed from an obliquely upper direction rear of vehicle.
    FIG. 2 is a plan view of the bumper element and of the lateral elements on which the vehicle front structure of the embodiment of the present invention is applied, seen from the upper direction of the vehicle.
    FIG. 3 is an enlarged perspective view of part Z of FIG. 1.
    Figure 4 is a perspective view of the side member to which the vehicle front structure of the embodiment of the present invention is applied, viewed from the exterior side of the vehicle.
    Figure 5 is a cross-sectional view taken along line A-A of Figure 4.
    Figure 6 is a perspective view of the side member of Figure 4, a side face portion on the outside of the vehicle is removed.
    Hereinafter, the present invention will be described in detail on the basis of an embodiment illustrated in the drawings.
    Figures 1 to 6 illustrate a vehicle front structure of the embodiment of the present invention. It should be noted in the drawings, that the arrow Fr indicates the front of the vehicle, the arrow O indicates the exterior side of the vehicle, and the arrow U indicates the upper direction of the vehicle. Also, arrow X indicates the vehicle width direction, and arrow Y indicates the longitudinal vehicle direction.
    As illustrated in Figures 1 to 3, a front part of vehicle 1 to which a structure of the embodiment of the present invention is applied mainly has: side elements (front side elements) 2 which extend in the direction longitudinal of the vehicle, and are respectively arranged on the two lateral parts of the vehicle; and a bumper element 3 which extends in the vehicle width direction and is arranged at a frontmost end of the vehicle, a vehicle rear side of the bumper element 3 being joined to the side elements 2 .
    As illustrated in FIGS. 3 and 5, the lateral element 2 of the embodiment has a closed cross section surrounded by an upper face portion 21, a lateral face portion 22 on the exterior side of the vehicle, a lower face portion 23 , and a side face portion 24 on the interior side of the vehicle. Slot-shaped openings 25, which are formed in positions corresponding to the projections mentioned below, formed lengthwise in the longitudinal direction of the vehicle, and in which end ends of the projections are inserted, are provided in parallel and spaced apart from each other in the vertical direction, in the lateral face portion 22, on the exterior side of the vehicle, positioned closer to a terminal end portion 2a of the lateral element 2.
    As illustrated in FIGS. 1 to 3, the bumper element 3 of the embodiment has a curved shape, and a central portion of vehicle 3a positioned between the two of the right and left lateral elements 2 projects more towards the vehicle front as the end end portions 2a of the side members 2. In addition, projecting portions (the two vehicle end portions) 31 projecting more outward in the vehicle width direction than the terminal end portions 2a of the side elements 2, having a curved shape inclined towards the rear of the vehicle, and extending over a predetermined length, are provided on both ends in the vehicle width direction of the barrier element -shocks 3. In other words, the bumper element 3 has a curved shape projecting towards the front of the vehicle at the level of the central portion of the vehicle. icule 3a as a vertex, and has a curved portion 32 curving towards the rear of the vehicle on an external part of the lateral element 2. This shortens the length of the bumper element 3 in the width direction vehicle, and allows a compact design of the configuration. In addition, the distance between the projecting portions 31 of the two vehicle end parts of the bumper element 3 and the side face portions 22 on the vehicle exterior side of the side elements 2 is shortened, in order to reduce the size of the highlights mentioned below and remove the weight increase. In addition, a larger angle (about 90 degrees) can be formed between the projecting portions 31 of the two vehicle end parts of the bumper element 3 and the projecting parts mentioned below.
    As illustrated in FIGS. 1 to 3, projecting portions 4 respectively extending from the projecting portions 31 towards the lateral elements 2 on the two right and left sides so as to cross them, are arranged on the interior side in the vehicle width direction (rear side of the vehicle), positioned on end end portions of the projecting portions 31 of the bumper element 3 of the embodiment. Each protruding part 4 is formed in a substantially rectangular box structure in plan view, and has a wedge shape whose cross-sectional area on the side element side 2 is less than the cross-sectional area on the bumper element side 3 The protruding part 4 has: an arrangement portion 41 where a base end portion 4a on the exterior side of the vehicle is arranged by being attached to an inner wall face of the protruding portion 31 of the barrier element. shock 3; and a flat portion 42 where a terminal end portion 4b on the interior side of the vehicle is arranged near the lateral face portion 22 on the exterior side of the vehicle of the lateral element 2, and is opposite and parallel to the face portion lateral 22.
    In addition, as illustrated in Figures 1 to 3, multiple (two in the embodiment) protrusions 43, which project more towards the interior side of the vehicle from the flat portion 42 towards the side face portion 22 on the vehicle exterior side of the side member 2, are inserted into the slot-shaped openings 25 of the side member 2 in a normal state, and have a length in the vehicle width direction which allows placement at inside the side member 2, are provided in the planar portion 42 of the projection 4. Namely, the projections 43 and the openings 25 are provided in corresponding positions, shapes, sizes, and numbers. Thus, the protrusions 43 are formed of a plate-shaped body extending in the longitudinal direction of the vehicle and having a thickness and a length in the longitudinal direction of the vehicle which allow insertion into the slit-shaped opening. 25. Thus, the projections 43 are configured to guarantee sufficient strength and stiffness against a load in the longitudinal direction of the vehicle generated by contact with the lateral element 2, and to reduce the weight.
    Furthermore, a front vehicle end portion of the slit-shaped opening 25 of the side member 2 is positioned closer to the rear of the vehicle than the projecting portion 31 of the two vehicle end portions of the bumper element 3. A terminal end portion on the rear vehicle side of the projection 43 is positioned on the vehicle front side of the rear end of the slot-shaped opening 25, when the projection 43 is inserted in side element 2. Consequently, at the time of a full overlapping collision on the front part of vehicle 1, when the projecting portion 31 of the bumper element 3 turns towards the vehicle front around the side face portion 22 on the vehicle exterior side of the side element 2, the projection 43 of the projection 4 can more easily come out of the slot-shaped opening 25 of the element l ateral 2.
    Furthermore, as illustrated in FIGS. 1 and 3 to 5, the projections 43 of the embodiment are spaced from one another in the vertical direction of the vehicle on the terminal end portion 4b on the inner side. vehicle of the protruding part 4, and are respectively provided on the upper end and the lower end of the protruding part 4 while sandwiching the flat portion 42 of the protruding part 4. Therefore, in this structure, the protrusions 43 are arranged with sufficient spacing interposed therebetween on the flat portion 42 of the projecting part 4, whereby the load of a collision is distributed, and the projecting part 4 is less likely to deform. In addition, the projections 43 are arranged near the upper face portion 21 and the lower face portion 23 which are upper and lower faces of the side element 2. Therefore, sufficient resistance of the side element 2 is also guaranteed. in this configuration.
    On the other hand, the stiffness of the lateral face portion 24 (interior of the vehicle) positioned on the interior vehicle side of the terminal end portion 2a of the lateral element 2 of the embodiment is adjusted to be less than that of the side face portion 22 (outside face of the vehicle) positioned on the outside side of the vehicle. Therefore, as illustrated in FIGS. 1 and 2, a vulnerable portion 26 such as a longitudinal rib extending in the vertical direction of the vehicle is provided in each side face portion 24 on the interior side of the vehicle of the portion d 'terminal end 2a. When the vulnerable portion 26 is provided, the side element 2 easily deforms towards the interior side of the vehicle at the instant of a collision on the bumper element 3 on the interior side of the vehicle of the side element 2 Consequently, the bumper element 3 deforms more easily towards the interior side of the vehicle, and the engagement between the slot-shaped opening 25 and the terminal end of the projection 43 is released smoothly. Consequently, the absorption of an impact load from a collision by deformation of the lateral element 2 is less likely to be impeded.
    In addition, as illustrated in FIGS. 5 and 6, a plate-shaped lower reinforcement 5 extending in the longitudinal direction of the lateral element 2 is arranged in an interior lower side of the lateral element 2 of the mode of achievement. The lower reinforcement 5 is inclined while overlapping a lower corner portion 27 formed from the side face portion 22 on the outside of the vehicle and the bottom face portion 23 of the side element 2, and upper and lower end portions 5a , 5b of the lower reinforcement 5 are respectively joined to the lateral face portion 22 and the lower face portion 23. For this reason, in the lower reinforcement 5, the upper and lower end portions 5a, 5b as junction parts are folded along the side face portion 22 and the bottom face portion 23, and the top and bottom end portions 5a, 5b have multiple attachment points W1 in the side face portion 22 on the vehicle exterior side of the vehicle. side element 2 and the lower face portion 23. In addition, the slot-shaped opening 25 positioned on the lower side is provided opposite u lower reinforcement 5, in a position sandwiched between the fixing points W1 of the upper and lower end portions 5a, 5b of the lower reinforcement 5.
    Namely, in the lateral element 2 of the embodiment, the part of the lateral face portion 22 on the exterior side of the vehicle which comes into contact with the projecting part 4 at the instant of an offset collision is reinforced by the lower reinforcement 5. Thus, the lateral element 2 is configured for, at the instant of an offset collision where the planar portion 42 of the projecting part 4 comes into contact with the lateral face portion 22 of the lateral element 2, eliminating excessive deformation of the lateral element 2 towards the interior side of the vehicle, and maintaining the shape of the slot-shaped opening 25 positioned on the lower side.
    In addition, as illustrated in FIGS. 5 and 6, an upper plate-shaped reinforcement 6 extending in the longitudinal direction of the lateral element 2 is arranged in an inner upper side of the lateral element 2 of the mode of achievement. The upper reinforcement 6 is inclined while overlapping an upper corner portion 28 formed from the upper face portion 21 and the side face portion 24 on the vehicle interior side of the side element 2, and upper and lower end portions 6a , 6b of the upper reinforcement 6 are respectively joined to the upper face portion 21 and the side face portion 24. For this reason, in the upper reinforcement 6, the upper and lower end portions 6a, 6b as junction parts are folded along the upper face portion 21 and the side face portion 24, and the upper and lower end portions 6a, 6b have multiple attachment points W2 in the upper face portion 21 and the side face portion 24 on the vehicle interior side of side element 2. In addition, the slot-shaped opening 25 positioned on the upper side is provided opposite u upper reinforcement 6, in a position sandwiched between the fixing points W2 of the upper and lower end portions 6a, 6b of the upper reinforcement 6.
    Namely, in the side element 2 of the embodiment, the part of the upper face portion 21 joined to the side face portion 22 on the exterior side of the vehicle which comes into contact with the projecting part 4 at the moment of an offset collision is reinforced by the upper reinforcement 6. Thus, the lateral element 2 is configured for, at the instant of an offset collision where the planar portion 42 of the projecting part 4 comes into contact with the lateral face portion 22 side element 2, remove excessive deformation of side element 2 towards the interior side of the vehicle, and maintain the shape of the slot-shaped opening 25 positioned on the upper side.
    Next, a description will be provided of an operation of the vehicle front structure of the embodiment, at the time of an offset collision which is a mode of collision on one side of the vehicle front part 1.
    When an impact load has entered an end portion on one side of the bumper member 3, and the protruding portion 31 at the end portion of the bumper member 3 is depressed towards the rear of the vehicle, the projecting portion 31 is forced to turn towards the rear of the vehicle around the vicinity of the vehicle center. However, the planar portion 42 on the interior side of the vehicle of the projecting part 4 provided on the interior side of the projecting portion 31 comes into contact with the side face portion 22 on the exterior side of the vehicle of the side element 2, and therefore prevents the projecting portion 31 from turning towards the rear of the vehicle. In addition, the projections 43 are provided in the flat portion 42 on the vehicle interior side of the projection 4, the projections 43 are inserted in the slot-shaped openings 25 provided in the side face portion 22 on the exterior side of vehicle of the lateral element 2, and the projecting part 4 does not move in the longitudinal direction of the vehicle relative to the lateral element 2. This eliminates the deformation of the terminal end portion 2a of the lateral element 2 Consequently, an impact load entered into an end part on one side of the bumper element 3 is transmitted to the side element 2 via the protruding part 4. Therefore, the part d 'end of the bumper element 3 and the side element 2 do not fold in the passenger compartment, but deform in a contained manner. On the other hand, the protruding part 4 does not deform entirely, and only the point of contact with the lateral element 2 and peripheral parts deform.
    In addition, a description will be provided of an operation of the vehicle front structure of the embodiment, at the time of a full overlap collision which is a mode of collision on the entire face of the front part. vehicle 1.
    When an impact load has entered the entire bumper element 3 having a curved shape and the entire bumper element 3 is pressed towards the rear of the vehicle, because the central portion of the vehicle 3a positioned between the side elements 2 projects more towards the front of the vehicle than the end end portions 2a of the side elements 2, the projecting portion 31 on the end part of the bumper element 3 rotates forward of vehicle around the lateral face portion 22 on the exterior side of the vehicle of the lateral element 2, when the central portion of vehicle 3a deforms linearly. Consequently, the projections 43 which have been inserted into the side member 2 exit from the slot-shaped openings 25, and the engagement with the openings 25 is released. Then, when the load is applied more, the terminal end portion 2a of the lateral element 2 can deform and absorb the impact load, since the lateral element 2 and the protruding part 4 do not interfere with each other. During this deformation, the projecting portion 31 of the bumper element 3 rotates towards the front of the vehicle around the side face portion 22 on the exterior side of the vehicle of the side element 2, and therefore the projecting part 4 having the protrusions 43 do not penetrate into and do not interfere with the lateral face portion 22 on the vehicle exterior side of the lateral element 2. At this instant, if the vulnerable portion 26 is added to the lateral face portion 24 on the interior side of vehicle positioned in the terminal end portion 2a of the side member 2, the deformation of the terminal end portion 2a of the side member 2 is further driven, and the impact load can be absorbed more efficiently.
    Thus, the vehicle front structure of the embodiment of the present invention includes: the side member 2 which extends in the vehicle longitudinal direction in the vehicle front part 1, and is arranged in the two side parts of the vehicle ; and a bumper element 3 which extends in the vehicle width direction and is arranged at a frontmost end of the vehicle, a vehicle rear side of the bumper element 3 being joined to the side elements 2 The bumper element 3 has a curved shape, the central portion of vehicle 3a positioned between the lateral elements 2 projects more towards the front of the vehicle than the terminal end portions 2a of the lateral elements 2, and the portions Projecting 31 of the two vehicle end portions are positioned on the outer side in the vehicle width direction of the terminal end portions 2a of the side members 2, and have a curved shape curving towards the rear of the vehicle. In addition, the projecting part 4 extending towards the lateral element 2 from the projecting portion 31 of the bumper element 3 is provided on the interior side in the vehicle width direction of the projecting portion 31, and the terminal end portion 4b on the vehicle interior side of the projection 4 has the flat portion 42 opposite the side face portion 22 on the vehicle exterior side of the side member 2. The projections 43 making more protruding towards the interior side of the vehicle from the planar portion 42 of the projecting part 4 and extending in the longitudinal direction of the vehicle are provided in the planar portion 42, and the slot-shaped openings 25 formed in corresponding positions to the projections 43, formed in the longitudinal direction of the vehicle, and in which end ends of the projections 43 are inserted, are provided in the side face portion line 22 on the outside of the vehicle of the side element 2.
    Therefore, in the vehicle front structure of the embodiment, at the time of an offset collision which is a mode in which a collision object collides in an end portion on one side of the vehicle front portion 1, the protruding portion 31 which is the bumper element 3 on the side having suffered the collision and is the end part on the outside of the vehicle of the side element 2 is folded inwards towards the rear of vehicle. Then, the rear end of the slot-shaped opening 25 of the lateral element 2 and the rear end of the projection 43 of the projection 4 are brought into contact together with the deformation of the projection 31 of the bumper element 3. Consequently, the vehicle front structure of the present invention can allow the projection of the projecting portion 31 on the vehicle end part of the bumper element 3 towards the rear of the vehicle , without adding a new fastener or complex new structure. In addition, the deformation of the bumper element 3 and the deformation of the terminal end portion 2a of the side element 2 can also be suppressed. This allows the load to be transmitted smoothly from the protruding portion 31 of the bumper element 3 to the lateral element 2 via the protruding part 4, so that the deformation of the lateral element 2 in the interior can be removed.
    On the other hand, in the vehicle front structure of the embodiment, at the time of a full overlap collision which is a mode where a collision object collides in the entire face of the vehicle front part 1 , the projecting portions 31 of the two vehicle end parts of the bumper element 3 rotate towards the front of the vehicle around the side face portions 22 on the exterior vehicle side of the side elements 2, and the projections 43 of the part protruding 4 emerge from the slot-shaped openings 25 of the lateral element 2 together with the deformation of the bumper element 3.
    Therefore, the vehicle front structure of the present invention can easily and securely release the engagement between the projections 43 and the openings 25 at the time of a full overlap collision. This allows impact load to be absorbed by the side member 2 without hindering the deformation of the bumper member 3, whereby the ability to reduce damage from a full overlap collision can be effectively improved.
    Namely, the vehicle front structure of the embodiment is capable of absorbing an impact in both collision modes, including a full overlap collision and an offset collision, through a simple structure.
    In addition, in the vehicle front structure of the embodiment, the projection 43 has a long shape extending in the longitudinal direction of the vehicle. Therefore, sufficient strength and stiffness can be guaranteed against a load in the longitudinal direction of the vehicle generated by contact with the slot-shaped opening 25 of the side member 2, and the projection 43 can be designed to be of weight lightweight.
    In addition, in the vehicle front structure of the embodiment, the protrusions 43 are spaced from each other in the vehicle vertical direction, on the terminal end portion 4b on the vehicle interior side of the portion projection 4, and are provided on the upper end and the lower end of the projection 4 while sandwiching the flat portion 42 of the projection 4. Therefore, in this structure, the projections 43 are arranged with a spacing sufficient guaranteed between them on the flat portion 42 of the projecting part 4, whereby the charge of a collision is distributed, and the projecting part 4 is less likely to deform. In addition, the projections 43 can be arranged near the upper face portion 21 and the lower face portion 23 which are upper and lower faces of the side element 2. Therefore, sufficient resistance of the side element 2 is also guaranteed, and a structure less likely to be deformed by a collision can be obtained.
    Furthermore, in the vehicle front structure of the embodiment, the bumper element 3 has a curved shape projecting forward from the vehicle at the central portion of vehicle 3a as a top, and has the curved portion 32 curving towards the rear of the vehicle on an outer part of the lateral element 2. This shortens the length of the bumper element 3 in the vehicle width direction, and allows a compact design. In addition, the distance between the projecting portions 31 of the two vehicle end parts of the bumper element 3 and the side face portions 22 on the vehicle exterior side of the side elements 2 is shortened, so that the size of the protruding part 4 can be reduced for compactness, and an increase in weight can be eliminated. In addition, a larger angle can be formed between the protrusions 31 of the two vehicle end parts of the bumper element 3 and the protrusions 4. Therefore, a load of an offset collision can be transmitted efficiently from the projecting portion 31 to the lateral element 2.
    In the vehicle front structure of the embodiment, the stiffness of the side face portion 24 on the vehicle interior side of the terminal end portion 2a of the side member 2 is adjusted to be less than that of the face portion lateral 22 on the outside of the vehicle, forming the vulnerable portion 26.
    Therefore, at the moment of a collision on the bumper element 3 on the vehicle interior side of the side element 2, the side element 2 deforms more easily towards the vehicle interior side, and the engagement between the slit-shaped opening 25 and the terminal end of the projection 43 is released smoothly and securely. Therefore, the impact can be absorbed by the deformation of the side member 2, at the time of a full overlap collision.
    In addition, in the vehicle front structure of the embodiment, the side element 2 has a closed cross section surrounded by the upper face portion 21, the side face portion 22 on the exterior side of the vehicle, the bottom face portion 23, and the lateral face portion 24 on the interior side of the vehicle, the lower reinforcement 5 extending in the longitudinal direction of the lateral element 2 is arranged inside the lateral element 2, the lower reinforcement 5 has the points of fixing W1 in the side face portion 22 on the outside of the vehicle and the bottom face portion 23 of the side element 2, and the slot-shaped opening 25 is provided in a position sandwiched by the fixing points W1 of the lower reinforcement 5. Therefore, in the vehicle front structure of the embodiment, the part of the side face portion 22 on the outside of the vehicle side element icon 2 which comes into contact with the projecting part 4 at the time of an offset collision is reinforced by the lower reinforcement 5. Because the part of the side face portion 22 on the outside of the vehicle of the lateral element 2 which comes into contact with the protruding part 4 at the instant of an offset collision is reinforced by the lower reinforcement 5, at the instant of an offset collision where the planar portion 42 of the protruding part 4 comes into contact with the lateral face portion 22 of the lateral element 2, the deformation of the lateral element 2 towards the interior side of the vehicle can be eliminated, and the shape of the slot-shaped opening 25 positioned on the lower side can be maintained. This can reduce the damage of an offset collision even more effectively.
    Although the embodiment of the present invention has been described, the invention is not limited to the above embodiment, and various modifications and various changes can be made based on the technical idea of the invention. invention.
    For example, although the projection 4 of the above embodiment is formed into a box structure, it may have a U-shaped cross section with an open bottom side. Also, the protruding part 4 need not be hollow, and a honeycomb structure, or the like, to improve stiffness can fill the interior of the protruding part 4.
    List of reference signs front part of vehicle side element
    2a terminal end portion bumper element
    3a central portion of vehicle projecting portion
    4a base end portion 4b bottom reinforcement end portion
    5a upper end portion 5b lower end portion upper face portion side face portion on the outside of the vehicle portion bottom face portion side face portion on the interior side of the vehicle slot-shaped opening vulnerable portion bottom corner portion protruding portion curved portion arrangement portion projecting flat portion
    W1 fixing point
    权利要求:
    Claims (5)
    [1" id="c-fr-0001]
    1. Front structure of vehicle, comprising:
    side elements (2) extending in a longitudinal direction of the vehicle, and arranged on both sides of a vehicle; and a bumper element (3) extending in a vehicle width direction and arranged at a forwardmost end of the vehicle, a vehicle rear side of the bumper element (3) being joined to the elements side (2), the bumper element (3) having a curved shape, a central part of the vehicle (3a) positioned between the side elements (2) projecting more towards the front of the vehicle than end portions end elements of the side elements (2), and the two vehicle end parts (31) being positioned on the outside in the vehicle width direction of the end end portions of the side elements (2), and having a shape curved towards the rear of the vehicle, characterized in that:
    protrusions (4) extending towards the side elements (2) from the two vehicle end parts (31) of the bumper element (3) are provided on an inner side in the width direction vehicle of the two vehicle end parts (31), a terminal end portion (4b) on the vehicle interior side of the projecting part (4) having a flat portion (42) opposite a face portion side (22) on the vehicle exterior side of the side member (2);
    a projection (43) projecting more towards the interior side of the vehicle from the flat portion (42) of the projection (4) and extending in the longitudinal direction of the vehicle is provided in the flat portion (42); and a slot-shaped opening (25) formed in a position corresponding to the projection (43), formed lengthwise in the longitudinal direction of the vehicle, and into which an end end of the projection (43) is inserted, is provided in the lateral face portion (22) on the exterior side of the vehicle of the lateral element (2).
    [2" id="c-fr-0002]
    2. vehicle front structure according to claim 1, characterized in that the projections (43) are spaced from each other in a vertical direction of the vehicle, on the terminal end portion (4b) on the inner side of the projecting part (4), and are provided on the upper end and the lower end of the projecting part (4) while sandwiching the flat portion (42) of the projecting part (4).
    [3" id="c-fr-0003]
    3. vehicle front structure according to claim 1 or 2, characterized in that the bumper element (3) has a curved shape projecting towards the front of the vehicle at the central part of the vehicle (3a) in as a top, and has a curved part curving towards the rear of the vehicle on an external part of the lateral element (2).
    10
    [4" id="c-fr-0004]
    4. vehicle front structure according to any one of claims 1 to 3, characterized in that a stiffness of a face (24) on the interior side of the vehicle of the terminal end portion (2a) of the element lateral (2) is adjusted to be less than that of a face (22) on the exterior side of the vehicle.
    [5" id="c-fr-0005]
    5. vehicle front structure according to any one of claims 1 to 4, characterized in that the lateral element (2) has a closed cross section, a reinforcement (5) extending in the longitudinal direction of the element lateral (2) being arranged at
    20 inside the lateral element (2), the reinforcement (5) having fixing points (W 1) in an external face and a lower face of the lateral element (2), and the opening in the form slot (25) being provided in a position sandwiched by the fixing points (Wl) of the reinforcement.
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    同族专利:
    公开号 | 公开日
    JP2019001391A|2019-01-10|
    DE102018105253A1|2018-12-20|
    US10737645B2|2020-08-11|
    FR3067693B1|2020-07-03|
    CN109131574A|2019-01-04|
    CN109131574B|2021-02-23|
    US20180361965A1|2018-12-20|
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    法律状态:
    2019-01-28| PLFP| Fee payment|Year of fee payment: 2 |
    2020-01-17| PLSC| Publication of the preliminary search report|Effective date: 20200117 |
    2020-01-29| PLFP| Fee payment|Year of fee payment: 3 |
    2021-02-10| PLFP| Fee payment|Year of fee payment: 4 |
    2022-02-09| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2017119564A|JP2019001391A|2017-06-19|2017-06-19|Vehicle front structure|
    JP2017-119564|2017-06-19|
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