WO2010038598A1 - 車体前部構造 - Google Patents
車体前部構造 Download PDFInfo
- Publication number
- WO2010038598A1 WO2010038598A1 PCT/JP2009/065935 JP2009065935W WO2010038598A1 WO 2010038598 A1 WO2010038598 A1 WO 2010038598A1 JP 2009065935 W JP2009065935 W JP 2009065935W WO 2010038598 A1 WO2010038598 A1 WO 2010038598A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wall
- plate
- vehicle body
- extension member
- front side
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/082—Engine compartments
Definitions
- the present invention relates to a vehicle body front structure in which inner and outer extension members are protruded toward the front of a vehicle body from front end portions of a front side frame and an upper member.
- an upper member is provided on the outer side in the vehicle width direction of the front side frame, and an inner and outer shock absorbing portion (hereinafter referred to as an “extension member”) is provided at each front end portion so as to be separated in the vehicle width direction.
- an inner and outer shock absorbing portion hereinafter referred to as an “extension member”
- a bumper beam is provided at the front end portion of the inner and outer extension members (see, for example, Patent Document 1).
- a mounting plate is bridged between the front end portions of the front side frame and the upper member, and inner and outer extension members are provided on the mounting plate.
- the inner extension member protrudes from the front end of the front side frame toward the front of the vehicle.
- the outer extension member protrudes from the front end portion of the upper member toward the front of the vehicle body. Attachment holes are formed in the front end portions of the inner and outer extension members, and bumper beams are attached by bolts inserted into the attachment holes.
- the vehicle body front structure when an impact load is applied to the bumper beam from the front of the vehicle body, the applied impact load is deformed (crushed) by the extension members on the inner and outer sides to absorb the impact load. Further, the impact load transmitted to the inner and outer extension members is supported by the front side frame and the upper member. Therefore, when an impact load acts on the bumper beam from the front of the vehicle body, the impact load is efficiently transmitted to the inner extension member and the outer extension member, and further, the impact load transmitted to the inner extension member is efficiently transmitted to the front side frame. It is desirable that the impact load transmitted and transmitted to the outer extension member is efficiently transmitted to the upper member.
- the left and right front side frames that extend in the front-rear direction of the vehicle body and the left and right front side frames are disposed outside the left and right front side frames, and extend upwardly toward the rear of the vehicle body.
- Left and right outer extension members provided outside the inner extension member on the mounting plate, the left and right inner extension members from the front end of the left and right front side frames.
- the left and right outer extension members projecting forward
- the vehicle body front portion structure projects from the front end portions of the left and right upper members toward the front of the vehicle body, and the inner attachment portion provided with the inner extension member of the attachment plate faces the center in the vehicle width direction.
- the vehicle body front portion structure is provided in which the front wall of the inner extension member is inclined toward the front of the vehicle body toward the vehicle width direction center.
- the vehicle body front structure further includes a front bulkhead on which a cooling member is mounted, the front bulkhead being disposed near the vehicle width center of the mounting plate, the front bulkhead being A stay portion constituting a side portion is provided, and a rear flange is formed at the rear portion of the stay portion so as to protrude toward the mounting plate, and the rear flange is attached to the mounting plate.
- the inner extension member includes a cylinder formed in a cylindrical shape with an upper wall, a lower wall, an inner wall, and an outer wall, and a front lid portion that closes a front end portion of the cylinder.
- the lid includes an upper wall fixing flap, a lower wall fixing flap, an inner wall fixing flap, and an outer wall fixing flap that can be welded so as to correspond to the upper wall, the lower wall, the inner wall, and the outer wall, respectively.
- the upper wall fixing flap, the lower wall fixing flap, the inner wall fixing flap, and the outer wall fixing flap have respective flap edges separated from the mounting plate by the same distance.
- the vehicle body front structure further includes a front bulkhead on which a cooling member is mounted, and the front bulkhead is disposed near a vehicle width center of the mounting plate, and the front bulkhead is Provided on the mounting plate.
- the cylindrical body is bent into a U-shaped cross section, and has an inner plate having the inner wall and upper and lower bent parts, and the outer wall and upper and lower bent parts are bent into a U-shaped cross section.
- An upper plate, and the upper and lower plates of the inner and outer plates are overlapped to form the upper wall, and the lower and upper bent portions of the inner and outer plates are overlapped to overlap the lower plate.
- a wall is formed, and the inner side wall and the outer side wall have reinforcing beads formed so as to extend in the front-rear direction of the vehicle body.
- the inner extension member includes an inner plate having upper and lower bent portions by being bent into a substantially U-shaped cross section, and an outer plate having upper and lower bent portions by being bent into a substantially U-shaped cross section. And the upper bent portions of the inner plate and the outer plate are overlapped and welded to form an upper wall of the extension member, and the lower bent portions of the inner plate and the outer plate are formed.
- a lower wall of the extension member is formed by being overlapped and welded, and an upper joint portion where the upper bent portion is welded, a lower joint portion where the lower bent portion is welded, and a front end portion of the extension member
- a fastening member that fastens to the bumper beam is positioned on a load transmission line of an impact load applied from the front side of the vehicle body.
- the load transmission line is offset to one side of the inner plate and the outer plate with respect to the vehicle width direction center of the extension member, and the plate thickness dimension of one plate on the side where the load transmission line is offset is It is set larger than the plate thickness dimension of the other plate.
- the one plate is the inner plate
- the one plate is provided on the front side frame side
- the other plate is the outer plate, so that the other plate is the upper member. Provided on the side.
- the left and right front side frames have a space that allows disposition of a power source, and the power source is provided on the left and right front side frames.
- a mounting plate is provided at the front end of the front side frame and the upper member.
- the inner mounting portion provided with the inner extension member of the mounting plate is inclined toward the front of the vehicle body. Therefore, the front end portion of the front side frame can be extended in the front direction of the vehicle body, and the front bulkhead provided at the front end portion of the front side frame can be provided by moving to the vehicle body front side. Thereby, a cooling member such as a radiator supported by the front bulkhead can be moved to the front side of the vehicle body. Therefore, in a vehicle in which the overall length of the vehicle body is kept compact, the engine room can be secured largely toward the front of the vehicle body, and a large engine can be mounted.
- the inner mounting portion of the mounting plate is inclined toward the front of the vehicle body toward the vehicle width direction center, and the front wall of the inner extension member is inclined toward the front of the vehicle body toward the vehicle width direction center. I tried to do it. Therefore, the inner wall of the inner extension member near the center in the vehicle width direction and the outer wall on the outer side in the vehicle width direction can have substantially the same amount of protrusion. Thereby, when an impact load is applied to the inner extension member, the entire inner extension member can be uniformly deformed (collapsed). Therefore, it is possible to ensure a sufficient amount of impact load absorbed by the inner extension member.
- the front bulkhead is disposed near the center of the mounting plate in the vehicle width direction.
- a rear flange is projected toward the mounting plate, and the rear flange is provided on the mounting plate.
- the extension member is provided with a front lid portion that closes the front end portion of the cylindrical body.
- the front lid portion was provided with an upper wall fixing flap, a lower wall fixing flap, an inner wall fixing flap, and an outer wall fixing flap that can be welded to the upper wall, the lower wall, the inner wall, and the outer wall, respectively.
- Each flap edge of each fixed flap was spaced the same distance from the mounting plate. Thereby, the deformation amount (crushing amount) of the extension member can be ensured uniformly, and the impact load can be absorbed well.
- two upper bent portions of the inner and outer plates are overlapped to form the upper wall of the cylinder, and two lower bent portions of the inner and outer plates are overlapped to form the cylinder.
- reinforcing beads extending in the longitudinal direction of the vehicle body are formed on the inner wall and the outer wall of the cylinder. Therefore, the rigidity of the inner wall and the outer wall can be matched to the upper wall and the lower wall.
- the rigidity of the inner wall, the outer wall, the upper wall, and the lower wall substantially the same, the deformation amount (crushing amount) of the extension member can be ensured uniformly and the impact load can be absorbed well. it can.
- the bumper beam is fastened to the front end portion of the inner extension member with a fastening member.
- the upper wall of the inner extension member was formed by welding and overlapping the two upper bent portions of the inner and outer plates. Further, the two lower bent portions of the inner and outer plates were welded and overlapped to form the lower wall of the inner extension member.
- the impact load transmitted to the inner and outer extension members is transmitted to the front side frame through the joint portion of the upper bent portion and the lower bent portion.
- the impact load acting on the bumper beam is transmitted to the front side frame via the fastening member, the upper joint portion of the upper bent portion and the lower joint portion of the lower bent portion, thereby transferring the impact load to the front side frame.
- the load transmission line is offset to one side of the inner plate and the outer plate, and the plate thickness dimension of one plate is set larger than that of the other plate. Therefore, even if an impact load is transmitted to one plate side, the entire extension member can be uniformly deformed (collapsed). Thereby, it is possible to sufficiently secure the amount of impact load absorbed by the extension member.
- one plate having a larger thickness than the other plate is provided on the front side frame side.
- the other plate having a smaller plate thickness than the one plate was provided on the upper member side. Therefore, a relatively large impact load can be transmitted to the front side frame having higher rigidity than the upper member via one plate.
- a relatively small impact load can be transmitted to the upper member having a lower rigidity than the front side frame via the other plate.
- the entire extension member can be uniformly deformed (collapsed), and a sufficient amount of impact load can be secured by the extension member.
- power sources are provided (suspended) on the left and right front side frames. Therefore, the impact load transmitted to one of the left and right front side frames can be distributed to the other front side frame via the power source. Thereby, it is possible to better support the impact load transmitted to one of the front side frames.
- FIG. 3 is a plan view of the vehicle body front structure shown in FIG. 2.
- FIG. 3 is an exploded perspective view of the vehicle body front part structure shown in FIG. 2.
- FIG. 5 is an enlarged view of part 5 of FIG.
- FIG. 3 is an enlarged perspective view of the left impact absorbing unit shown in FIG. 2.
- FIG. 7 is an exploded perspective view of the left shock absorbing unit shown in FIG. 6.
- FIG. 8 is a perspective view showing an inner cylinder and an outer cylinder of the left impact absorbing unit shown in FIG. 7.
- FIG. 11A is a diagram showing an example in which the inner and outer extension members are deformed when an oncoming vehicle collides with the front structure of the vehicle body in FIG. 11A. It is the figure which showed the example which supports an impact load with the vehicle body front part structure by a present Example.
- the vehicle body front structure 10 includes left and right front side frames 11 and 12 on the left and right sides of the vehicle body front.
- the left upper member 13 is provided outside the left front side frame 11 in the vehicle width direction.
- the right upper member 14 is provided outside the right front side frame 12 in the vehicle width direction.
- the left impact absorbing unit 16 is provided at the front end portion 11 a of the left front side frame 11 and the front end portion 13 a of the left upper member 13.
- the right impact absorbing unit 17 is provided at the front end portion 12 a of the right front side frame 12 and the front end portion 14 a of the right upper member 14.
- the bumper beam 18 extends between the left and right shock absorbing units 16 and 17.
- the vehicle body front structure 10 further includes a power source 22 (see FIGS. 2 and 3) in a space (engine room) 21 between the left and right front side frames 11 and 12, and a front bulkhead 24 in front of the power source 22.
- the front bulkhead 24 is provided with a cooling member 26 such as a radiator.
- the power source 22 is unitized by integrally combining an engine and a transmission, the engine is disposed on the right front side frame 12 (FIG. 1) side, and the transmission is disposed on the left front side. It arrange
- the transmission of the power source 22 is attached to the left front side frame 11 via a left mount member 23, and the engine is attached to the right front side frame 12 via a right mount member (not shown).
- the left front side frame 11 extends in the longitudinal direction of the vehicle body.
- the rear end portion 11b (FIG. 1) of the left front side frame 11 is connected to the left outrigger 27 (FIG. 1).
- the left upper member 13 is provided outside the left front side frame 11 in the vehicle width direction, and extends upwardly toward the rear of the vehicle body.
- the rear end 15b of the left upper member 13 is connected to the left front pillar 28 (FIG. 1).
- the front end portion 11 a of the left front side frame 11 is connected at a front connection portion 31 formed at the front end portion 13 a of the left upper member 13.
- a left wheel house 32 that covers a left front wheel (not shown) is provided between the left front side frame 11 and the left upper member 13.
- the left and right front side frames 11 and 12 and the left and right upper members 13 and 14 are symmetrical members.
- the left front side frame 11 and the left upper member 13 will be described below, and the right front side frame 12 and the right upper member 14 Description is omitted.
- the left and right shock absorbing units 16 and 17 are symmetrical members.
- the left shock absorbing unit 16 will be described below, and the description of the right shock absorbing unit 17 will be omitted.
- the left shock absorbing unit 16 is attached to the support plate 34 and the support plate 34 provided from the front end portion 11 a of the left front side frame 11 to the front end portion 13 a of the left upper member 13.
- the inner extension member 41 protrudes from the front end 11a (specifically, the mounting plate 35) of the left front side frame 11 toward the front of the vehicle body, and the outer extension member 42 extends from the front end 13a (specifically, the left upper member 13). Specifically, it protrudes from the mounting plate 35) toward the front of the vehicle body.
- the support plate 34 has a substantially rectangular outer shape, and is provided at the front end portion 11 a of the left front side frame 11, the front end portion 13 a of the left upper member 13, and the front connection portion 31.
- the support plate 34 includes an inner support portion 45 provided at the front end portion 11 a of the left front side frame 11 and an outer support portion 46 provided at the front end portion 13 a of the left upper member 13.
- the outer support portion 46 is provided substantially parallel to a vehicle width direction straight line 48 extending in the vehicle width direction.
- the inner support portion 45 is inclined forward so as to be inclined from the central portion 34a of the support plate 34 toward the front of the vehicle body. Specifically, the inner support portion 45 is tilted forward with respect to the vehicle width direction straight line 48 so as to tilt toward the front of the vehicle body at an inclination angle ⁇ 1.
- the inner end portion 45a of the inner support portion 45 projects toward the vehicle width center direction so as to be substantially parallel to the vehicle width direction straight line 48.
- the mounting plate 35 is attached to the front surface of the support plate 34 by attaching the mounting plate 35 to the front surface of the support plate 34 with a plurality of bolts 37 and 109.
- the attachment plate 35 is a plate formed in substantially the same outer shape (that is, substantially rectangular shape) as the support plate 34.
- the mounting plate 35 is provided from the front end portion 11a of the left front side frame 11 to the front end portion 13a of the left upper member 13 with the support plate 34 interposed therebetween.
- the attachment plate 35 has an inner attachment portion 51 provided on the front surface of the inner support portion 45 and an outer attachment portion 52 provided on the front surface of the outer support portion 46.
- the outer mounting portion 52 is substantially parallel to the vehicle width direction straight line 48, similarly to the outer support portion 46. Similar to the inner support portion 45, the inner attachment portion 51 is inclined forward so as to be inclined from the central portion 35a of the attachment plate 35 toward the front of the vehicle body. Specifically, the inner mounting portion 51 is inclined forward so as to be inclined at an inclination angle ⁇ 1 with respect to the straight line 48 in the vehicle width direction. Further, the inner mounting portion 51 includes a stepped portion 53 provided at the inner end portion 51 a and a clamping piece 54 provided at the stepped portion 53.
- the step portion 53 is a portion bent toward the front of the vehicle body at the inner end portion 51a of the inner attachment portion 51.
- the sandwiching piece 54 protrudes from the front side of the stepped portion 53 toward the center in the vehicle width direction substantially parallel to the inner end portion 45a of the inner support portion 45.
- the sandwiching piece 54 is arranged at a predetermined interval S1 with respect to the inner end portion 45a of the inner support portion 45. Therefore, it is possible to secure a gap between the holding piece 54 and the inner end portion 45a for holding the mounting piece 107 of the rear flange 106 described later.
- the reason for clamping the attachment piece 107 of the rear flange 106 between the clamping piece 54 and the inner end 45a will be described in detail later.
- each of the inner extension member 41 and the outer extension member 42 is provided on the mounting plate 35.
- the inner extension member 41 includes an inner cylinder 61 formed in a substantially rectangular cylindrical shape with an upper wall 62, a lower wall 63, an inner wall 64, and an outer wall 65, and an inner front that closes the front end portion 61a of the inner cylinder 61. And a lid (front lid) 67.
- the inner wall 64 is a wall provided near the center in the vehicle width direction.
- the outer side wall 65 is a wall portion provided on the outer side in the vehicle width direction (that is, closer to the outer extension member 42).
- the inner cylinder 61 has an upper wall 62 and a lower wall 63 that project substantially horizontally toward the front of the vehicle body in a side view.
- the inner wall 64 and the outer wall 65 protrude so as to gradually taper toward the front of the vehicle body in plan view.
- the inner cylinder 61 includes an inner plate 111 provided closer to the center in the vehicle width direction and an outer plate 112 provided closer to the outer side in the vehicle width direction.
- the inner plate 111 has an inner wall 64, an upper bent portion 113, and a lower bent portion 114 (see FIG. 8) by being bent into a substantially U-shaped cross section.
- the outer plate 112 has an outer wall 65, an upper bent portion 115, and a lower bent portion 116 (see FIG. 8) by being bent into a substantially U-shaped cross section.
- the upper bent portion 113 of the inner plate 111 and the upper bent portion 115 of the outer plate 112 are overlapped, and the upper bent portions 113 and 115 are spot-welded at a plurality of upper joint portions 117, whereby the inner cylinder 61.
- An upper wall 62 is formed.
- the lower bent portion 114 of the inner plate 111 and the lower bent portion 116 of the outer plate 112 are overlapped, and the respective lower bent portions 114 and 116 are spot welded at a plurality of lower joint portions 118, whereby the inner cylinder 61.
- a lower wall 63 is formed.
- the inner tube 61 is formed by the inner plate 111 and the outer plate 112 by bonding the upper bent portions 113 and 115 and the lower bent portions 114 and 116 together.
- the rigidity of the upper wall 62 is higher than that formed by a single plate by overlapping and joining the upper bent portions 113 and 115 to each other. By joining the lower bent portions 114 and 116 in an overlapping manner, the rigidity of the lower wall 63 is higher than that formed by a single plate.
- the inner cylinder 61 has an inner bead 121 for reinforcement extending on the inner side wall 64 in the longitudinal direction of the vehicle body.
- the inner bead 121 is a concave portion (groove portion) that extends parallel to the longitudinal direction of the vehicle body at the center of the inner wall 64 in the height direction.
- the groove bottom portion of the inner bead 121 is formed in an upward slope so that the bead depth dimension gradually decreases toward the front of the vehicle body.
- An outer bead 122 for reinforcement extends on the outer wall 65 in the longitudinal direction of the vehicle body. Similar to the inner bead 121, the outer bead 122 is a recess (groove) that extends parallel to the longitudinal direction of the vehicle body at the center of the outer wall 65 in the height direction. In the outer bead 122, the groove bottom portion of the outer bead 122 is formed in an upward slope so that the bead depth dimension gradually decreases toward the front of the vehicle body.
- the rigidity of the inner wall 64 and the outer wall 65 can be increased according to the upper wall 62 and the lower wall 63. Accordingly, the rigidity of the four walls of the inner wall 64, the outer wall 65, the upper wall 62, and the lower wall 63 can be matched, and the deformation amount (smashing amount) of the inner cylinder 61 (that is, the inner extension member 41) can be reduced. It can be ensured evenly and the impact load can be absorbed well.
- the inner front lid portion 67 includes a front wall (front end portion of the inner extension member 41) 68 that closes the front end portion 61a of the inner cylindrical body 61, an upper wall fixing flap 71 that projects from the front wall 68 to the rear of the vehicle body, and a lower wall.
- a fixed flap 72, an inner wall fixed flap 73, and an outer wall fixed flap 74 are provided.
- the upper wall fixing flap 71 projects along the upper wall 62 from the upper end 68a (FIG. 9) of the front wall 68 toward the rear of the vehicle body.
- the upper wall fixing flap 71 is fixed to the upper wall 62 by spot welding to the upper wall 62 at a plurality of upper flap joint portions 124, 124.
- the lower wall fixing flap 72 projects from the lower end 68b (FIG. 9) of the front wall 68 toward the rear of the vehicle body along the lower wall 63, and is fixed to the lower wall 63 by welding.
- the lower wall fixing flap 72 is fixed to the lower wall 63 by spot welding to the lower wall 63 at a plurality of lower flap joint portions 125, 125.
- the inner side wall fixing flap 73 projects from the inner end 68c (FIG. 9) of the front wall 68 toward the rear of the vehicle body along the inner side wall 64, and is fixed to the inner side wall 64 by welding.
- the outer side wall fixing flap 74 projects from the outer end 68d (FIG. 9) of the front wall 68 toward the rear of the vehicle body along the outer wall 65, and is fixed to the outer wall 65 by welding.
- the inner front lid portion 67 is fixed to the front end portion 61a of the inner cylindrical body 61 by welding. In this state, the front wall 68 of the inner front lid portion 67 is inclined from the inner wall 64 side toward the outer wall 65 (see FIG. 5).
- the upper wall fixing flap 71, the lower wall fixing flap 72, the inner wall fixing flap 73, and the outer wall fixing flap 74 have flap end edges 71 a, 72 a, 73 a, 74 a on the mounting plate 35. They are separated from each other by the same distance S2 (see FIG. 5). The reason why the flap end edges 71a to 74a of the fixed flaps 71 to 74 are separated from the mounting plate 35 by the same distance will be described later.
- the outer extension member 42 is an outer cylinder 81 that is formed in a substantially rectangular cylindrical shape with an upper wall 82, a lower wall 83, an inner wall 84, and an outer wall 85. And an outer front lid portion 87 that closes the front end portion 81 a of the outer cylindrical body 81.
- the inner wall 84 is a wall provided near the center in the vehicle width direction (that is, closer to the inner extension member 41).
- the outer side wall 85 is a wall portion provided on the outer side in the vehicle width direction.
- the upper wall 82 and the lower wall 83 of the outer cylindrical body 81 project substantially horizontally toward the front of the vehicle body in a side view, and the inner side wall 84 and the outer wall 85 gradually taper toward the front of the vehicle body in a plan view. It is overhanging to become.
- the outer cylinder 81 includes an inner plate 131 provided closer to the center in the vehicle body width direction and an outer plate 132 provided on the outer side in the vehicle body width direction.
- the inner plate 131 has an inner side wall 84, an upper bent portion 133, and a lower bent portion 134 (FIG. 8) by being bent into a substantially U-shaped cross section.
- the outer plate 132 has an outer wall 85, an upper bent portion 135, and a lower bent portion 136 (FIG. 8) by being bent into a substantially U-shaped cross section.
- the upper bent portion 133 of the inner plate 131 and the upper bent portion 135 of the outer plate 132 are overlapped, and the upper bent portions 133 and 135 are spot-welded at a plurality of upper joint portions 137 so that the inner cylinder 81 A top wall 82 is formed.
- the lower bent portion 134 of the inner plate 131 and the lower bent portion 136 of the outer plate 132 are overlapped, and the respective lower bent portions 134 and 136 are spot welded at a plurality of lower joints 138 (only one is shown).
- the lower wall 83 of the inner cylinder 81 is formed.
- the upper bent portions 133 and 135 are joined together and the lower bent portions 134 and 136 are joined together, so that the outer cylindrical body 81 is formed by the inner plate 131 and the outer plate 132.
- the outer front cover part 87 includes a front wall (front end part of the outer extension member 42) 88 that closes the front end part 81a of the outer cylinder 81, an upper wall fixing flap 91 that projects from the front wall 88 to the rear of the vehicle body, and a lower wall.
- a fixed flap 92 (FIG. 9), an inner wall fixed flap 93 and an outer wall fixed flap 94 are provided.
- the upper wall fixing flap 91 projects from the upper end portion 88 a of the front wall 88 toward the rear of the vehicle body along the upper wall 82 and is fixed to the upper wall 82 by welding. That is, the upper wall fixing flap 91 is fixed to the upper wall 82 by spot welding to the upper wall 82 at the upper flap joint portions 144, 144.
- the lower wall fixing flap 92 projects from the lower end portion 88b of the front wall 88 toward the rear of the vehicle body along the lower wall 83 and is fixed to the lower wall 83 (FIG. 7) by welding. That is, the lower wall fixing flap 92 is fixed to the lower wall 83 by spot welding to the lower wall 83 at the lower flap joint portions 145 and 145.
- the inner wall fixing flap 93 projects from the inner end 88c of the front wall 88 toward the rear of the vehicle body along the inner wall 84, and is fixed to the inner wall 84 by welding.
- the outer side wall fixing flap 94 projects from the outer end 88d of the front wall 88 toward the rear of the vehicle body along the outer wall 85 and is fixed to the outer wall 85 by welding. Thereby, the outer front cover part 87 is fixed to the front end part 81a of the outer cylinder 81 by welding.
- FIG. 10 shows the positional relationship between the welded part of the left shock absorbing unit and the bolt.
- the left end portion 18 a of the bumper beam 18 is fastened to the front wall 68 with upper and lower bolts (fastening members) 76.
- upper and lower bolts (fastening members) 76 A configuration in which the left end portion 18a of the bumper beam 18 is fastened to the front wall 68 of the inner extension member 41 with upper and lower bolts 76 will be described in detail later.
- the inner extension member 41 has an upper flap joint portion 124, a lower flap joint portion 125, upper joint portions 117, 117, and a lower portion on an inner load transmission line 151 that extends toward the rear of the vehicle body through the positions of the upper and lower bolts 76. Joints 118 are provided. When the impact load F1 is applied to the bumper beam 18 from the front of the vehicle body, the inner load transmission line 151 transmits a part of the impact load F1.
- the impact load F1 applied to the bumper beam 18 is converted into the upper and lower bolts 76, the upper flap joint portion 124, the lower flap joint portion 125, the upper joint portions 117 and 117, the lower joint provided on the inner load transmission line 151.
- the impact load can be efficiently transmitted to the left front side frame 11 by transmitting it to the left front side frame 11 via the portions 118 and 118.
- the inner load transmission line 151 is offset from the center 152 in the vehicle width direction of the inner extension member 41 by an interval S3 closer to the inner plate 111 (that is, closer to the center in the vehicle width direction).
- the plate thickness dimension T1 (see also FIG. 7) of the inner plate 111 on the side offset from the inner load transmission line 151 is set larger than the plate thickness dimension T2 (see also FIG. 7) of the outer plate 112. Therefore, the rigidity of the inner plate 111 is set higher than the rigidity of the outer plate 112. Thereby, even if an impact load is transmitted to the inner plate 111 side, the inner extension member 41 can be uniformly deformed (crushed) over the entire area. Therefore, a sufficient amount of impact load absorbed by the inner extension member 41 can be secured.
- the left front side frame 11 is set to have higher rigidity than the left upper member 13. Therefore, the left front side frame 11 can support a larger impact load than the left upper member 13. Therefore, the inner plate 111 having a large plate thickness dimension T1 is provided near the left front side frame 11, and the outer plate 112 having a small plate thickness dimension T2 is provided near the left upper member 13. Thereby, a relatively large impact load can be transmitted to the left front side frame 11 through the inner plate 111. On the other hand, a relatively small impact load can be transmitted to the left upper member 13 through the outer plate 112.
- the left end 18 a of the bumper beam 18 is fastened to the front wall 88 with upper and lower bolts (fastening members) 76.
- upper and lower bolts (fastening members) 76 A configuration in which the left end portion 18a of the bumper beam 18 is fastened to the front wall 88 of the outer extension member 42 with upper and lower bolts 76 will be described in detail later.
- the outer extension member 42 has an upper flap joint portion 144, a lower flap joint portion 145, upper joint portions 137 and 137, and a lower joint on an outer load transmission line 154 that extends toward the rear of the vehicle body through the positions of the upper and lower bolts 76. Joints 138, 138 are provided.
- the outer load transmission line 154 is a line through which a part of the impact load F1 is transmitted when the impact load F1 acts on the bumper beam 18 from the front of the vehicle body.
- the impact load F1 applied to the bumper beam 18 is converted into the upper and lower bolts 76, the upper flap joint portion 144, the lower flap joint portion 145, the upper joint portions 137 and 137, and the lower joint provided on the outer load transmission line 154.
- the impact load can be efficiently transmitted to the left upper member 13.
- the outer load transmission line 154 is offset from the center 155 in the vehicle width direction of the outer extension member 42 by an interval S4 closer to the inner plate 131 (that is, closer to the center in the vehicle body width direction).
- the plate thickness dimension T3 (see also FIG. 7) of the inner plate 131 on the side where the outer load transmission line 154 is offset is set larger than the plate thickness dimension T4 (see also FIG. 7) of the outer plate 132. Therefore, the rigidity of the inner plate 131 is set higher than the rigidity of the outer plate 132. Thereby, even if an impact load is transmitted to the inner plate 131 in a biased manner, the outer extension member 42 can be uniformly deformed (collapsed) over the entire area. Therefore, it is possible to secure a sufficient amount of impact load absorbed by the outer extension member 42.
- the left front side frame 11 is set to have higher rigidity than the left upper member 13. Therefore, the left front side frame 11 can support a larger impact load than the left upper member 13. Therefore, the inner plate 131 having a large plate thickness dimension T3 is provided near the left front side frame 11, and the outer plate 132 having a small plate thickness dimension T4 is provided near the left upper member 13. Thereby, a relatively large impact load can be transmitted to the left front side frame 11 through the inner plate 131. On the other hand, a relatively small impact load can be transmitted to the left upper member 13 through the outer plate 132.
- the inner end portion 68c of the front wall 68 of the inner front lid portion 67 protrudes toward the front of the vehicle body with respect to the outer end portion 68d. Therefore, the front wall 68 of the inner front lid portion 67 is inclined toward the front of the vehicle body from the outer end 68d to the inner end 68c of the front wall 68 toward the vehicle width direction center. Specifically, the front wall 68 is inclined with respect to the vehicle width direction straight line 48 at an inclination angle ⁇ 2.
- the inclination angle ⁇ 2 is set to be slightly larger than the inclination angle ⁇ 1 of the inner mounting portion 51 in order to match the shape of the bumper beam 18. Therefore, the front wall 68 of the inner front lid portion 67 is disposed substantially parallel to the inner attachment portion 51.
- the upper and lower mounting holes 77 (see FIG. 9) through which the upper and lower bolts 76 can be inserted are formed in the front wall 68.
- Bolts 76 are respectively inserted into the upper and lower mounting holes 77, and the inserted bolts 76 are respectively screwed to the nuts 78, whereby the left end portion 18 a of the bumper beam 18 is bolted to the inner front lid portion 67.
- the front wall 68 is disposed substantially parallel to the inner mounting portion 51 by tilting the inner mounting portion 51 of the mounting plate 35 forward and tilting the front wall 68 of the inner front lid portion 67. ing.
- the inner wall 64 and the outer wall 65 of the inner extension member 41 protrude forward from the inner attachment portion 51 by substantially the same amount. Therefore, the deformation amount (crushing amount) of the inner cylinder 61 of the inner extension member 41 can be ensured evenly. Thereby, even if an impact load acts on the inner extension member 41, the inner cylindrical body 61 of the inner extension member 41 can be uniformly deformed (collapsed) in the entire region. Therefore, it is possible to secure a sufficient amount of impact load absorbed by the inner extension member 41.
- the upper wall fixing flap 71, the lower wall fixing flap 72 (FIG. 9), the inner wall fixing flap 73, and the outer wall fixing flap 74 are respectively attached to the attachment plate 35 by the flap end edges 71a, 72a (FIG. 8), 73a, 74a.
- the reason why the flap end edges 71a to 74a are separated from the mounting plate 35 by the same distance S2 is as follows.
- an upper wall fixing flap 71, a lower wall fixing flap 72 (see FIG. 8), an inner wall fixing flap 73, and an outer wall fixing flap 74 are superimposed on the front end portion 61a of the inner cylinder 61.
- the front end portion 61a on which the respective fixing flaps 71 to 74 are overlapped is a portion that is relatively difficult to deform (not easily crushed) against an impact load acting from the front of the vehicle body.
- the portions where the fixed flaps 71 to 74 are not overlapped are configured to be uniformly deformed by an impact load.
- the flap edges 71a to 74a are separated from the mounting plate 35 by the same distance S2. Therefore, the deformation amount (crush amount) of the inner extension member 41 can be ensured uniformly. Thereby, when an impact load acts on the inner extension member 41, the inner cylinder 61 of the inner extension member 41 can be uniformly deformed in the entire region, and the impact load can be absorbed well.
- the outer extension member 42 has a front wall 88 of the outer front lid portion 87 inclined forward from the outer end 88d to the inner end 88c of the front wall 88 toward the vehicle width direction center. ing. Specifically, the front wall 88 is inclined with respect to the vehicle width direction straight line 48 at an inclination angle ⁇ 3.
- the inclination angle ⁇ 3 of the front wall 88 is set to be approximately the same as the inclination angle ⁇ 2 of the inner front lid portion 67 (front wall 68) in order to match the shape of the bumper beam 18.
- the front wall 88 is formed with upper and lower mounting holes 96 (FIG. 8) through which the upper and lower bolts 76 can be inserted.
- the bolts 76 are respectively inserted into the upper and lower mounting holes 96, and the inserted bolts 76 are screwed to the nuts 97, whereby the left end portion 18a of the bumper beam 18 is bolted to the outer front lid portion 87.
- the front bulkhead 24 includes a cooling member (a radiator or the like) 26 and is disposed on the center side in the vehicle width direction of the mounting plate 35. Specifically, the front bulkhead 24 is disposed between the front end portions 11a and 12a of the left and right front side frames 11 and 12 and at a front position of the vehicle body with respect to the front end portions 11a and 12a. Partition the front.
- a cooling member a radiator or the like
- the front bulkhead 24 includes an upper member 101 extending in the vehicle width direction, a lower member (not shown) provided below the upper member 101, and a left stay portion 103 provided at the left end of each of the upper member 101 and the lower member.
- the upper member 101 and the lower member are formed in a substantially rectangular frame shape with the right stay portion 104 provided at the right end of each of the upper member 101 and the lower member.
- the left stay portion 103 includes a rear flange 106 protruding toward the mounting plate 35 at the rear portion 103a.
- the rear flange 106 has a mounting piece 107 protruding toward the stepped portion 53 of the mounting plate 35, and the mounting piece 107 has a mounting hole 108.
- the attachment piece 107 is held between the holding piece 54 of the inner attachment portion 51 and the inner end portion 45a of the inner support portion 45. That is, the attachment piece 107 is attached by the bolt 109 in a state of being sandwiched between the holding piece 54 of the inner attachment portion 51 and the inner end portion 45a of the inner support portion 45. Therefore, the rear flange 106 is attached to the support plate 34 and the attachment plate 35.
- the left and right stay portions 103 and 104 are symmetrical members. The left stay portion 103 will be described below, and the description of the right stay portion 104 will be omitted.
- the inner support portion 45 is tilted forward at an inclination angle ⁇ 1 and the inner mounting portion 51 is tilted forward at an inclination angle ⁇ 1, so that the inner support portion 45 and the inner mounting portion 51 are moved forward in the vehicle body. Can do. Therefore, the attachment piece 107 of the rear flange 106 sandwiched between the holding piece 54 of the inner attachment portion 51 and the inner end portion 45a of the inner support portion 45 can be provided by moving in the front direction of the vehicle body. Accordingly, the front bulkhead 24 can be provided by being moved to the position P1 (see also FIG. 5) on the front side of the vehicle body, and the cooling member 26 can be provided by being moved together with the front bulkhead 24 to the front side of the vehicle body. Therefore, in a vehicle in which the overall length of the vehicle body is kept compact, the engine room 21 can be secured large toward the front of the vehicle body, and the large power source 22 can be mounted in the engine room 21.
- the cooling member 26 can be further moved along with the front bulkhead 24 to the front of the vehicle body. Thereby, in a vehicle in which the overall length of the vehicle body is kept compact, the engine room 21 can be secured further toward the front of the vehicle body.
- the left and right front side frames 11, 12 are arranged on the left and right sides in the vehicle width direction.
- the power source 22 is disposed in a space (engine room) 21 formed between the left and right front side frames 11 and 12.
- the power source 22 is provided on the left front side frame 11 via the left mount member 23, and is provided on the right front side frame 12 with a right mount member (not shown). Therefore, the impact load transmitted to one of the left and right front side frames 11, 12 (for example, the left front side frame 11) can be distributed to the right front side frame 12 via the power source 22. Thereby, it is possible to better support the impact load transmitted to the left front side frame 11.
- FIG. 11A An example in which an oncoming vehicle collides with a vehicle having the vehicle body front structure 10 of the present invention in an offset state will be described with reference to FIGS. 11A to 12.
- FIG. 11A An example in which an oncoming vehicle collides with a vehicle having the vehicle body front structure 10 of the present invention in an offset state will be described with reference to FIGS. 11A to 12.
- the oncoming vehicle 160 collides with the vehicle body front structure 10 while shifting to the left side.
- the impact load F1 generated by the offset collision is transmitted to the left impact absorbing unit 16 through the left end portion 18a of the bumper beam 18. Specifically, a part of the impact load F1 is transmitted to the inner extension member 41 as the impact load F2 as indicated by an arrow. Further, the remaining impact load F3 of the impact load F1 is transmitted to the outer extension member 42 as indicated by an arrow.
- the inner extension member 41 includes upper and lower bolts 76, an upper flap joint portion 124, a lower flap joint portion 125, upper joint portions 117 and 117, and a lower joint portion 118 on the inner load transmission line 151. , 118 are provided. Therefore, a part of the impact load F1 applied to the bumper beam 18 is transmitted as the impact load F2 to the inner extension member 41 through the upper and lower bolts 76, and the upper flap joint portion 124, the lower flap joint portion 125, and the upper joint portion 117 are transmitted. , 117 and the lower joints 118, 118 are efficiently transmitted to the left front side frame 11.
- the outer extension member 42 includes upper and lower bolts 76, an upper flap joint portion 144, a lower flap joint portion 145, upper joint portions 137 and 137, and a lower joint portion 138 on the outer load transmission line 154. , 138 are provided. Therefore, the remaining impact load F3 of the impact load F1 is transmitted to the outer extension member 42 via the upper and lower bolts 76, and the upper flap joint portion 144, the lower flap joint portion 145, the upper joint portions 137 and 137, and the lower joint portion 138. , 138, and is efficiently transmitted to the left upper member 13.
- the impact load F2 applied to the inner extension member 41 is deformed so as to crush the inner cylinder 61 of the inner extension member 41 to absorb a part of the impact load F2.
- the outer cylinder 81 of the outer extension member 42 is deformed (crushed) to absorb a part of the impact load F3.
- the inner support portion 145 is inclined forward at an inclination angle ⁇ 1
- the front wall 68 is inclined forward at an inclination angle ⁇ 2. Therefore, the inner wall 64 (see FIG. 11A) of the inner extension member 41 and the outer wall 65 (see FIG. 11A) can be made to have substantially the same protruding amount.
- the upper wall fixing flap 71, the lower wall fixing flap 72, the inner wall fixing flap 73 and the outer wall fixing flap 74 of the inner extension member 41 are respectively connected to the flap end edges 71a and 72a. , 73a, 74a are separated from the mounting plate 35 by the same distance S2.
- the inner bead 121 is extended to the inner wall 64 of the inner extension member 41 and the outer bead 122 is extended to the outer wall 65, whereby the rigidity of the inner wall 64 and the outer wall 65 is increased. Is raised to match the upper wall 62 and the wall 63. Therefore, the deformation amount of the inner cylinder 61 can be ensured evenly.
- the inner extension member 41 can be uniformly deformed over the entire region. Therefore, a sufficient amount of impact load absorbed by the inner extension member 41 can be secured.
- the inner load transmission line 151 is offset by a distance S3 closer to the inner plate 111 (that is, closer to the center in the vehicle width direction) than the center 152 in the vehicle width direction of the inner extension member 41 (see also FIG. 11A).
- the inner plate 111 on the side where the inner load transmission line 151 is offset is set to be larger than the plate thickness dimension of the outer plate 112 as shown in FIG. Therefore, even if the impact load F2 is transmitted to the inner plate 111 in a biased manner, the entire inner cylindrical body 61 of the inner extension member 41 can be uniformly deformed. Thereby, the absorption amount of the impact load F2 by the inner extension member 41 can be sufficiently ensured.
- the left front side frame 11 is set to have higher rigidity than the left upper member 13. Further, the inner plate 111 is set to have a larger thickness than the outer plate 112. Therefore, a relatively large impact load is transmitted to the inner plate 111 (plate having a large thickness) provided on the left front side frame 11 side.
- the outer load transmission line 154 is offset from the center 155 in the vehicle width direction of the outer extension member 42 by an interval S4 on the inner plate 131 side (ie, in the vehicle width direction center side) (see also FIG. 11A).
- the inner plate 131 on the side where the outer load transmission line 154 is offset is set to be larger than the plate thickness dimension of the outer plate 132 as shown in FIG. Therefore, even if the impact load F3 is transmitted to the inner plate 131 in a biased manner, the entire outer cylinder 81 of the outer extension member 42 can be uniformly deformed. Thereby, the absorption amount of the impact load F3 by the outer extension member 42 can be sufficiently secured.
- the left front side frame 11 is set to have higher rigidity than the left upper member 13. Further, the inner plate 131 is set to have a plate thickness dimension larger than that of the outer plate 132. Therefore, a relatively large impact load is transmitted to the inner plate 131 (a plate having a large thickness) provided on the left front side frame 11 side.
- FIG. 12 shows an example in which the impact load is supported by the vehicle body front structure according to this embodiment. After a part of the impact load F2 is absorbed by the inner extension member 41, the remaining impact load F4 of the impact load F2 is transmitted to the left front side frame 11 as indicated by an arrow. The transmitted impact load F4 is supported by the left front side frame 11.
- the remaining impact load of the impact load F3 is distributed to the left front side frame 11 and the left upper member 13, respectively, and the impact load F5 and the impact load F6. It is transmitted as an arrow.
- the impact load F5 transmitted to the left front side frame 11 is supported by the left front side frame 11.
- the impact load F6 transmitted to the left upper member 13 is supported by the left upper member 13.
- the impact load F ⁇ b> 1 generated when the oncoming vehicle 160 collides with the offset can be favorably supported by the vehicle body front structure 10.
- the left and right front side frames 11 and 12 are arranged on the left and right sides in the vehicle width direction, and a power source 22 is provided in a space (engine room) 21 formed by the left and right front side frames 11 and 12.
- the power source 22 is provided on the left front side frame 11 with a left mount member 23 and is provided on the right front side frame 12 with a right mount member (not shown). Therefore, the impact loads F4 and F5 transmitted to the left front side frame 11 can be distributed as the impact load F7 to the power source 22 via the left mount member 23.
- the dispersed impact load F7 is transmitted to the right front side frame 12 side and supported by the right front side frame 12. Thereby, the impact loads F4 and F5 transmitted to the left front side frame 11 can be supported more satisfactorily.
- the inner support portion 45 is tilted forward at the tilt angle ⁇ 1
- the front wall 68 is tilted forward at the tilt angle ⁇ 2 so that the inner wall 64 and the outer wall 65 of the inner extension member 41 have substantially the same protruding amount.
- the present invention is not limited to this, and the outer extension member 42 may be formed in the same manner as the inner extension member 41.
- the example in which the inner load transmission line 151 is offset to the inner plate 111 side with respect to the center in the vehicle width direction of the inner extension member 41 has been described. It is also possible to make it.
- the outer extension member 42 may be offset toward the outer plate 132 side.
- the bolt 76 is exemplified as a fastening member for attaching the bumper beam 18, but the present invention is not limited to this, and other fastening members such as rivets may be used.
- Cylinders 61, 81, left and right stays 103, 104, rear flange 106, inner plates 111, 131, outer plates 112, 132, upper bent portions 113, 115, 133, 135, lower bent portions 114, 116. , 134, 136 and the like are not limited to those illustrated, and can be appropriately changed.
- the present invention is suitable for application to a vehicle having a vehicle body front structure in which an extension member is protruded toward the front of the vehicle body from the front end portion of the front side frame.
- SYMBOLS 10 Vehicle body front part structure, 11 ... Left front side frame (front side frame), 11a, 12a ... Front end part of right and left front side frame, 12 ... Right front side frame (front side frame), 13 ... Left upper member ( Upper member), 14 ... Right upper member (upper member), 18 ... Bumper beam, 21 ... Space, 22 ... Power source, 41 ... Inner extension member (extension member), 42 ... Outer extension member (extension member), 61 ... Inner cylinder (cylinder), 62, 82 ... upper wall, 63, 83 ... lower wall, 64, 84 ... inner wall, 65, 85 ... outer wall, 68 ... front wall (front end of inner extension member 41), 76 ...
Abstract
Description
Claims (9)
- 車体の前後方向に向けて延びる左右のフロントサイドフレームと、
前記左右のフロントサイドフレームの各々の外側に配置され、車体の後方に向けて上り勾配となるよう延びている左右のアッパメンバと、
前記左右のフロントサイドフレームの前端部および前記左右のアッパメンバの前端部に取り付けられた取付プレートと、
前記取付プレートに車幅方向中央寄りに設けられた左右の内側エクステンション部材と、
前記取付プレートに前記内側エクステンション部材の外側になるよう設けられた左右の外側エクステンション部材と、を具備しており、
前記左右の内側エクステンション部材は、前記左右のフロントサイドフレームの前端部から車体の前方に向けて突出しており、前記左右の外側エクステンション部材は、前記左右のアッパメンバの前端部から車体の前方に向けて突出している車体前部構造であって、
前記取付プレートのうち前記内側エクステンション部材が設けられた内側取付部は、車幅方向中心に向かうに従って車体の前方に向けて傾斜しており、
前記内側エクステンション部材の前壁は、車幅方向中心に向かうに従って車体の前方に向けて傾斜している、車体前部構造。 - 前記車体前部構造は、さらに、冷却部材を搭載するフロントバルクヘッドを備え、該フロントバルクヘッドは、前記取付プレートの車幅中心寄りに配置されており、
前記フロントバルクヘッドは、その側部を構成するステイ部を備えており、該ステイ部の後部に後フランジが前記取付プレートに向けて張り出すように形成されており、
前記後フランジは、前記取付プレートに取り付けられている、請求項1に記載の車体前部構造。 - 前記内側エクステンション部材は、上壁、下壁、内側壁および外側壁で筒状に形成された筒体と、前記筒体の前端部を塞ぐ前蓋部とを備えており、
前記前蓋部は、前記上壁、前記下壁、前記内側壁および前記外側壁の各々に対応するように溶接可能な上壁固定フラップ、下壁固定フラップ、内側壁固定フラップおよび外側壁固定フラップをそれぞれ有し、
前記上壁固定フラップ、前記下壁固定フラップ、前記内側壁固定フラップおよび前記外側壁固定フラップは、それぞれのフラップ端縁が前記取付プレートに対して同じ距離だけ離間している、請求項1に記載の車体前部構造。 - 前記車体前部構造は、さらに、冷却部材を搭載するフロントバルクヘッドを備え、該フロントバルクヘッドは、前記取付プレートの車幅中心寄りに配置されており、
前記フロントバルクヘッドは、前記取付プレートに設けられている、請求項3に記載の車体前部構造。 - 前記筒体は、断面U字状に折り曲げられることで前記内側壁および上下の折曲部位を有する内側プレートと、断面U字状に折り曲げられることで前記外側壁および上下の折曲部位を有する外側プレートと、を備え、
前記内側および外側のプレートの各上折曲部位が重ね合わされて前記上壁が形成され、前記内側および外側のプレートの各下折曲部位が重ね合わされて前記下壁が形成され、
前記内側壁および前記外側壁は、車体の前後方向に向けて延びるよう形成された補強用のビードを有している、請求項3に記載の車体前部構造。 - 前記内側エクステンション部材は、断面略U字状に折り曲げられることで上下の折曲部位を有する内側プレートと、断面略U字状に折り曲げられることで上下の折曲部位を有する外側プレートと、を備え、
前記内側プレートおよび前記外側プレートの各上折曲部位が重ね合わされて溶接されることで前記エクステンション部材の上壁が形成され、
前記内側プレートおよび前記外側プレートの各下折曲部位が重ね合わされて溶接されることで前記エクステンション部材の下壁が形成され、
前記上折曲部位が溶接された上接合部、前記下折曲部位が溶接された下接合部および前記エクステンション部材の前端部をバンパービームに締結する締結部材が、前記車体前方側から作用した衝撃荷重の荷重伝達ライン上に位置する、請求項1に記載の車体前部構造。 - 前記荷重伝達ラインは、前記エクステンション部材の車幅方向中心に対して前記内側プレートおよび前記外側プレートの一方側にオフセットされており、前記荷重伝達ラインをオフセットした側の一方のプレートの板厚寸法は、他方のプレートの板厚寸法に比して大きく設定されている、請求項6に記載の車体前部構造。
- 前記一方のプレートを前記内側プレートとすることで、前記一方のプレートが前記フロントサイドフレーム側に設けられ、前記他方のプレートを前記外側プレートとすることで、前記他方のプレートが前記アッパメンバ側に設けられる、請求項7に記載の車体前部構造。
- 前記左右のフロントサイドフレームは、動力源の配置を許容する空間を有し、該動力源は、前記左右のフロントサイドフレームに設けられるようになっている、請求項1に記載の車体前部構造。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09817635A EP2330018B1 (en) | 2008-10-02 | 2009-09-11 | Structure for vehicle body front portion |
BRPI0920539A BRPI0920539A2 (pt) | 2008-10-02 | 2009-09-11 | estrutura dianteira de carroceria de veículo |
US13/062,249 US8256831B2 (en) | 2008-10-02 | 2009-09-11 | Structure for vehicle body front portion |
CN2009801342747A CN102137787B (zh) | 2008-10-02 | 2009-09-11 | 车身前部构造 |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-257640 | 2008-10-02 | ||
JP2008257640A JP4929264B2 (ja) | 2008-10-02 | 2008-10-02 | 車体前部構造 |
JP2008-257761 | 2008-10-02 | ||
JP2008257678A JP4966943B2 (ja) | 2008-10-02 | 2008-10-02 | 車体前部構造 |
JP2008257761A JP4966944B2 (ja) | 2008-10-02 | 2008-10-02 | 車体前部構造 |
JP2008-257678 | 2008-10-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010038598A1 true WO2010038598A1 (ja) | 2010-04-08 |
Family
ID=42073369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/065935 WO2010038598A1 (ja) | 2008-10-02 | 2009-09-11 | 車体前部構造 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8256831B2 (ja) |
EP (1) | EP2330018B1 (ja) |
CN (1) | CN102137787B (ja) |
BR (1) | BRPI0920539A2 (ja) |
WO (1) | WO2010038598A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2415643A1 (en) * | 2010-08-05 | 2012-02-08 | Honda Motor Co., Ltd. | Front vehicle body structure |
CN103391874A (zh) * | 2011-02-23 | 2013-11-13 | 本田技研工业株式会社 | 汽车的车身前部构造 |
WO2014021241A1 (ja) * | 2012-08-03 | 2014-02-06 | アイシン精機株式会社 | 衝撃吸収部材 |
JP2016002964A (ja) * | 2014-06-19 | 2016-01-12 | トヨタ自動車株式会社 | 車体構造 |
CN106467138A (zh) * | 2015-08-19 | 2017-03-01 | 本田技研工业株式会社 | 车身前部构造 |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8287013B2 (en) * | 2007-11-05 | 2012-10-16 | Toyoda Iron Works Co., Ltd. | Impact absorbing member for vehicle |
JP5211133B2 (ja) * | 2010-10-08 | 2013-06-12 | 本田技研工業株式会社 | 車体前部構造 |
DE102011103090A1 (de) * | 2011-05-25 | 2012-11-29 | Thyssenkrupp Steel Europe Ag | Fahrzeugkarosserie und deren Verwendung |
KR101210024B1 (ko) * | 2011-06-08 | 2012-12-07 | 현대자동차주식회사 | 차체의 전방 연결구조 |
JP5651781B2 (ja) * | 2011-07-30 | 2015-01-14 | 本田技研工業株式会社 | 車体前部構造 |
US8398153B1 (en) * | 2011-11-03 | 2013-03-19 | GM Global Technology Operations LLC | Impact deflector for vehicle frame |
JP2013103590A (ja) * | 2011-11-14 | 2013-05-30 | Honda Motor Co Ltd | 電気自動車の前部車体構造 |
EP2851272B1 (en) * | 2012-05-18 | 2016-10-05 | Nissan Motor Co., Ltd. | Structure for front part of vehicle body |
KR101316876B1 (ko) * | 2012-07-03 | 2013-10-08 | 기아자동차주식회사 | 차량용 범퍼 어셈블리 |
US8608231B1 (en) * | 2012-07-30 | 2013-12-17 | Ford Global Technologies, Llc | Vehicle structural frame with partial-overlap-barrier-impact deformation scheme |
CN102785701B (zh) * | 2012-08-29 | 2015-04-22 | 东风汽车公司 | 一种轿车前车体结构 |
EP2921377B1 (en) | 2012-11-16 | 2017-06-28 | Nissan Motor Co., Ltd | Structure for front part of vehicle |
JP5637203B2 (ja) * | 2012-12-04 | 2014-12-10 | トヨタ自動車株式会社 | 車体前部構造 |
JP5692210B2 (ja) * | 2012-12-07 | 2015-04-01 | トヨタ自動車株式会社 | 車体前部構造 |
JP5761214B2 (ja) * | 2013-01-18 | 2015-08-12 | トヨタ自動車株式会社 | 車体前部構造 |
JP6102948B2 (ja) | 2013-01-25 | 2017-03-29 | トヨタ自動車株式会社 | 車体前部構造 |
EP2949550B1 (en) * | 2013-01-25 | 2017-08-23 | Toyota Jidosha Kabushiki Kaisha | Vehicle body front structure |
US8967701B2 (en) * | 2013-03-01 | 2015-03-03 | Ford Global Technologies, Llc | Integrated shotgun rail deflector |
US8720983B1 (en) | 2013-03-14 | 2014-05-13 | Honda Motor Co., Ltd. | Narrow offset energy management frame structure |
US8662566B1 (en) | 2013-03-15 | 2014-03-04 | Honda Motor Co., Ltd. | Multi extension front bumper beam |
CN105073562B (zh) * | 2013-04-04 | 2018-07-27 | 丰田自动车株式会社 | 车身端部结构 |
US9676417B2 (en) | 2013-04-04 | 2017-06-13 | Toyota Jidosha Kabushiki Kaisha | Vehicle body front section structure |
DE102013206250A1 (de) * | 2013-04-09 | 2014-10-09 | Bayerische Motoren Werke Aktiengesellschaft | Strukturelement im vorderen Bereich eines Kraftfahrzeuges |
ITTO20130329A1 (it) * | 2013-04-23 | 2014-10-24 | Fiat Group Automobiles Spa | Scocca di autoveicolo |
JP5867470B2 (ja) | 2013-09-11 | 2016-02-24 | トヨタ自動車株式会社 | 車両前部構造 |
JP2015104972A (ja) * | 2013-11-29 | 2015-06-08 | アイシン精機株式会社 | 衝撃吸収部材 |
FR3025168B1 (fr) * | 2014-09-01 | 2018-01-19 | Psa Automobiles Sa. | Cadre avant de vehicule automobile pour groupe ventilateur-radiateur |
JP6178361B2 (ja) * | 2015-05-12 | 2017-08-09 | トヨタ自動車株式会社 | 車両前部構造 |
ITUB20150146A1 (it) * | 2015-05-13 | 2016-11-13 | Fca Italy Spa | Struttura d'estremita' di una scocca di autoveicolo |
DE102015112506A1 (de) * | 2015-07-30 | 2017-02-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Frontendmodul |
US9669785B2 (en) * | 2015-08-26 | 2017-06-06 | Toyota Motor Engineering & Manufacturing North America, Inc. | Bumper assemblies including spacer members and vehicles incorporating the same |
CA2942098C (en) * | 2015-09-16 | 2022-03-01 | Wabash National, L.P. | Rear impact guard |
JP6308194B2 (ja) * | 2015-09-25 | 2018-04-11 | トヨタ自動車株式会社 | 車両のエネルギ吸収構造 |
JP6284556B2 (ja) * | 2016-01-25 | 2018-02-28 | 本田技研工業株式会社 | 車体前部構造 |
CN105584441B (zh) * | 2016-03-01 | 2018-01-09 | 上汽通用汽车有限公司 | 组合式车用前防撞梁组件 |
CN110191839B (zh) * | 2017-01-20 | 2022-04-01 | 本田技研工业株式会社 | 车身前部构造 |
JP6923876B2 (ja) | 2017-03-28 | 2021-08-25 | 株式会社ワイテック | 自動車の前部車体構造 |
JP6863036B2 (ja) * | 2017-04-19 | 2021-04-21 | スズキ株式会社 | 車両前部構造 |
JP6769390B2 (ja) * | 2017-05-16 | 2020-10-14 | トヨタ自動車株式会社 | 車両前部構造 |
US10494028B2 (en) * | 2017-06-21 | 2019-12-03 | Ford Global Technologies, Llc | Vehicle frame structure |
JP6930407B2 (ja) * | 2017-12-11 | 2021-09-01 | トヨタ自動車株式会社 | 車両前部構造 |
FR3080348B1 (fr) * | 2018-04-19 | 2020-06-26 | Renault S.A.S | Structure de caisse d'un vehicule automobile comprenant un agencement de renfort en extremite de longeron. |
US10899386B2 (en) * | 2019-05-15 | 2021-01-26 | Fca Us Llc | Front rail to improve early energy absorption |
JP2023182301A (ja) * | 2022-06-14 | 2023-12-26 | トヨタ自動車株式会社 | 車両 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006088952A (ja) * | 2004-09-27 | 2006-04-06 | Nissan Motor Co Ltd | 自動車用バンパスティ構造 |
JP2006347265A (ja) * | 2005-06-14 | 2006-12-28 | Toyota Motor Corp | 車両の衝撃吸収部材 |
JP2007190964A (ja) | 2006-01-17 | 2007-08-02 | Honda Motor Co Ltd | 自動車の前部車体構造 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07277110A (ja) | 1994-04-05 | 1995-10-24 | Nissan Motor Co Ltd | バンパースティ取付構造 |
JPH10310006A (ja) | 1997-05-09 | 1998-11-24 | Toyota Motor Corp | バンパリインフォースメント構造 |
JPH11268863A (ja) | 1998-03-20 | 1999-10-05 | Nitto Denko Corp | シールテープ自動貼付け装置 |
JP3651299B2 (ja) | 1999-02-22 | 2005-05-25 | 日産自動車株式会社 | 車両用バンパの取付構造 |
JP2003002247A (ja) * | 2001-06-26 | 2003-01-08 | Nissan Motor Co Ltd | 車体の前部構造 |
US6695368B1 (en) * | 2002-10-31 | 2004-02-24 | Shape Corporation | Bumper mount forming corner on end of beam |
JP2005178682A (ja) | 2003-12-22 | 2005-07-07 | Calsonic Kansei Corp | 自動車の車体前部構造 |
US7459956B2 (en) * | 2004-05-05 | 2008-12-02 | Taiwan Semiconductor Manufacturing Co., Ltd. | Storing information with electrical fuse for device trimming |
JP4163667B2 (ja) | 2004-08-23 | 2008-10-08 | 本田技研工業株式会社 | バンパービーム取付構造 |
JP4723942B2 (ja) | 2004-09-28 | 2011-07-13 | アイシン精機株式会社 | 車両の衝撃吸収具及び車両の衝撃吸収構造 |
JP4276185B2 (ja) * | 2005-01-26 | 2009-06-10 | 本田技研工業株式会社 | 車体前部構造 |
JP4810234B2 (ja) * | 2006-01-11 | 2011-11-09 | 本田技研工業株式会社 | 自動車の前部車体構造 |
FR2896222B1 (fr) * | 2006-01-19 | 2009-07-17 | Peugeot Citroen Automobiles Sa | Module d'absorption de chocs pour une face avant d'un vehicule automobile et vehicule automobile comportant un tel module. |
US7651155B2 (en) * | 2006-11-03 | 2010-01-26 | Gm Global Technology Operations, Inc. | Progressive energy absorber |
JP5330674B2 (ja) * | 2007-11-05 | 2013-10-30 | 豊田鉄工株式会社 | クラッシュボックス |
US8056926B2 (en) * | 2007-12-04 | 2011-11-15 | Honda Motor Co., Ltd. | Vehicle front body structure |
-
2009
- 2009-09-11 WO PCT/JP2009/065935 patent/WO2010038598A1/ja active Application Filing
- 2009-09-11 BR BRPI0920539A patent/BRPI0920539A2/pt not_active Application Discontinuation
- 2009-09-11 EP EP09817635A patent/EP2330018B1/en not_active Not-in-force
- 2009-09-11 CN CN2009801342747A patent/CN102137787B/zh active Active
- 2009-09-11 US US13/062,249 patent/US8256831B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006088952A (ja) * | 2004-09-27 | 2006-04-06 | Nissan Motor Co Ltd | 自動車用バンパスティ構造 |
JP2006347265A (ja) * | 2005-06-14 | 2006-12-28 | Toyota Motor Corp | 車両の衝撃吸収部材 |
JP2007190964A (ja) | 2006-01-17 | 2007-08-02 | Honda Motor Co Ltd | 自動車の前部車体構造 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2330018A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2415643A1 (en) * | 2010-08-05 | 2012-02-08 | Honda Motor Co., Ltd. | Front vehicle body structure |
CN103391874A (zh) * | 2011-02-23 | 2013-11-13 | 本田技研工业株式会社 | 汽车的车身前部构造 |
CN103391874B (zh) * | 2011-02-23 | 2016-01-06 | 本田技研工业株式会社 | 汽车的车身前部构造 |
WO2014021241A1 (ja) * | 2012-08-03 | 2014-02-06 | アイシン精機株式会社 | 衝撃吸収部材 |
JP2014031109A (ja) * | 2012-08-03 | 2014-02-20 | Aisin Seiki Co Ltd | 衝撃吸収部材 |
US9618074B2 (en) | 2012-08-03 | 2017-04-11 | Aisin Seiki Kabushiki Kaisha | Shock absorbing member |
JP2016002964A (ja) * | 2014-06-19 | 2016-01-12 | トヨタ自動車株式会社 | 車体構造 |
CN106467138A (zh) * | 2015-08-19 | 2017-03-01 | 本田技研工业株式会社 | 车身前部构造 |
Also Published As
Publication number | Publication date |
---|---|
CN102137787B (zh) | 2013-06-12 |
CN102137787A (zh) | 2011-07-27 |
EP2330018A1 (en) | 2011-06-08 |
US20110148151A1 (en) | 2011-06-23 |
US8256831B2 (en) | 2012-09-04 |
BRPI0920539A2 (pt) | 2015-12-29 |
EP2330018A4 (en) | 2012-05-30 |
EP2330018B1 (en) | 2012-12-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2010038598A1 (ja) | 車体前部構造 | |
JP4966944B2 (ja) | 車体前部構造 | |
JP4966943B2 (ja) | 車体前部構造 | |
JP4680784B2 (ja) | 自動車の前部車体構造 | |
US7703805B2 (en) | Vehicle front body structure | |
KR101995929B1 (ko) | 차량 하부 구조 | |
US7828330B2 (en) | Vehicle front body structure | |
JP4484920B2 (ja) | 車体前部構造 | |
JP5150347B2 (ja) | 車体前部構造 | |
JP2019006303A (ja) | 車体下部構造 | |
CN113135236B (zh) | 车身下部构造 | |
JP5115243B2 (ja) | 自動車のリヤバンパ支持構造 | |
CN112739611B (zh) | 车身下部结构 | |
JP5061557B2 (ja) | 自動車のバンパ構造 | |
JP4929264B2 (ja) | 車体前部構造 | |
JP2008137483A (ja) | 車体前部構造 | |
JP6044794B2 (ja) | 車両の前部車体構造 | |
JP2876872B2 (ja) | 車体強度メンバの結合構造 | |
CN117480677A (zh) | 电池壳体结构和电池壳体结构的制造方法 | |
JP2009154859A (ja) | 車体前部構造 | |
JP5577237B2 (ja) | 車体構造 | |
JP5548778B2 (ja) | 車体フロア構造 | |
JP6044795B2 (ja) | 車両の前部車体構造 | |
JP2008143194A (ja) | 車体前部構造 | |
JP5723562B2 (ja) | 自動車の車体前部構造 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980134274.7 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09817635 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009817635 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 13062249 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2895/CHENP/2011 Country of ref document: IN |
|
ENP | Entry into the national phase |
Ref document number: PI0920539 Country of ref document: BR Kind code of ref document: A2 Effective date: 20110401 |