CN107804373B - Vehicle body superstructure - Google Patents
Vehicle body superstructure Download PDFInfo
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- CN107804373B CN107804373B CN201710691507.XA CN201710691507A CN107804373B CN 107804373 B CN107804373 B CN 107804373B CN 201710691507 A CN201710691507 A CN 201710691507A CN 107804373 B CN107804373 B CN 107804373B
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- roof
- rail
- vehicle
- reinforcing member
- vehicle body
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- 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
- B62D25/06—Fixed roofs
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Provided is a vehicle body superstructure, which aims to improve the torsional rigidity and the side collision performance of a vehicle body while achieving the reduction in weight of the vehicle body. The vehicle body upper structure includes: a roof (2); a roof cross member (3) that extends in the vehicle width direction; and roof side rails (4) on both left and right sides extending in the vehicle front-rear direction on both left and right sides of the vehicle body, the roof cross member (3) and the roof side rails (4) being connected to each other by first reinforcing members (8), each first reinforcing member (8) being arranged to extend from a vehicle width direction intermediate portion of the roof cross member (3) in an oblique direction to a corresponding one of the roof side rails (4) on both left and right sides, and each first reinforcing member (8) being disposed evenly in a vehicle front side region (R1) or a vehicle rear side region (R2) of the roof cross member (3).
Description
Technical Field
The present invention relates to a vehicle body upper structure of a vehicle.
Background
Conventionally, there is known a technique of forming a roof of an upper portion of a vehicle body by using a resin material to lighten the vehicle body. Generally, the roof of the upper portion of the vehicle body greatly contributes to the torsional rigidity of the vehicle body and the vehicle body performance at the time of a side collision. In addition, the plates made of the resin material have inferior mechanical properties compared to the steel plates. Therefore, in a vehicle using a resin roof, the torsional rigidity of the vehicle body and the vehicle body performance at the time of a side collision are deteriorated.
As a means for reducing the weight of a vehicle body, a technique for reducing the weight of a vehicle body by thinning a steel sheet used for a roof of an upper portion of the vehicle body is known. However, since thinning of the steel sheet reduces the roof performance, the torsional rigidity of the vehicle body and the vehicle body performance at the time of a side collision are deteriorated.
Therefore, some conventional vehicle body upper structures use a structure that improves the side collision performance of the vehicle body by arranging a reinforcing pipe (reforming pipe) inside a roof side rail (roof side rail) and a roof cross rail at both front and rear ends of the roof (see, for example, patent document 1).
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 4852017
Disclosure of Invention
Problems to be solved by the invention
Unfortunately, the structure in which the reinforcing pipe is disposed inside the roof side rail is the same as the above-described conventional vehicle body upper structure, providing insufficient torsional rigidity of the vehicle body that affects the stability, controllability, and Noise Vibration (NV) performance of the vehicle, such that additional reinforcement is required when the vehicle body needs to have increased torsional rigidity. This leads to a problem of increasing the weight of the vehicle body. In addition, the use of the reinforcing pipe causes a problem of not only increasing the weight but also increasing the cost.
The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicle body upper structure capable of improving torsional rigidity and side collision performance of a vehicle body while achieving weight reduction of the vehicle body.
Means for solving the problems
In order to solve the above-described problems of the prior art, in the present invention, a vehicle body upper structure includes at least a resin roof; a roof cross member extending in a vehicle width direction; and roof side rails that are located on both left and right sides of a vehicle body and extend in a vehicle front-rear direction on both left and right sides, wherein the roof cross rail and the roof side rail are connected to each other by a first reinforcing member that is arranged to extend from a vehicle width direction intermediate portion of the roof cross rail in an oblique direction to the roof side rails located on both left and right sides, and the first reinforcing member is arranged in at least one of a vehicle front side region and a vehicle rear side region of the roof cross rail.
Furthermore, in another aspect of the present invention, the roof upper structure includes at least a roof; a roof cross member extending in a vehicle width direction; and roof side rails that are located on both left and right sides of a vehicle body and extend in a vehicle front-rear direction on both left and right sides, wherein the roof cross rail and the roof side rail are connected to each other by a first reinforcing member that is arranged to extend from a vehicle width direction intermediate portion of the roof cross rail in an oblique direction to the roof side rails located on both left and right sides, and the first reinforcing member is arranged in at least one of a vehicle front side region and a vehicle rear side region of the roof cross rail.
ADVANTAGEOUS EFFECTS OF INVENTION
As described above, the vehicle body upper structure according to the present invention includes at least the resin roof; a roof cross member extending in a vehicle width direction; and roof side rails that are located on both left and right sides of a vehicle body and extend in a vehicle front-rear direction on both left and right sides, wherein the roof cross rail and the roof side rail are connected to each other by a first reinforcing member that is arranged to extend from a vehicle width direction intermediate portion of the roof cross rail in an oblique direction toward the roof side rail located on both left and right sides, and the first reinforcing member is arranged in at least one of a vehicle front side region and a vehicle rear side region of the roof cross rail, whereby it is possible to improve torsional rigidity and side collision performance of the vehicle body, which are deteriorated as compared to a steel roof due to the roof being made of resin, without increasing the weight of the vehicle body.
That is, in the vehicle body upper structure of the invention, the first reinforcing member is present to enable the connection strength between the roof cross member and each roof side rail to be improved, so that the torsional deformation of the vehicle body can be suppressed. In addition, arranging the first reinforcing member that connects the roof cross member and each roof side rail to each other can improve the bending rigidity of the roof cross member and each roof side rail, so that deformation of the vehicle compartment at the time of a side collision can be suppressed.
Further, the vehicle body upper structure according to another aspect of the invention includes at least a roof; a roof cross member extending in a vehicle width direction; and roof side rails that are located on both left and right sides of a vehicle body and extend in a vehicle front-rear direction on both left and right sides, wherein the roof cross rail and the roof side rail are connected to each other by a first reinforcing member that is arranged to extend from a vehicle width direction intermediate portion of the roof cross rail in an oblique direction toward the roof side rail located on both left and right sides, and the first reinforcing member is arranged in at least one of a vehicle front side region and a vehicle rear side region of the roof cross rail, whereby there is a first reinforcing member to enable an increase in connection strength between the roof cross rail and each roof side rail, so that torsional deformation of the vehicle body can be suppressed. In addition, arranging the first reinforcing member that connects the roof cross member and each roof side rail to each other can improve the bending rigidity of the roof cross member and each roof side rail, so that deformation of the vehicle compartment at the time of a side collision can be suppressed.
Drawings
Fig. 1 is a perspective view of a resin roof, a roof cross member, a roof side rail, and a first reinforcing member applied to a vehicle body upper structure according to a first embodiment of the invention, as viewed from diagonally above and to the right of the vehicle front side.
Fig. 2 is a perspective view of a resin roof, a roof cross member, a roof side rail, a roof back rail, a first reinforcing member, and a second reinforcing member applied to a vehicle body upper structure according to a second embodiment of the invention, as viewed from diagonally above and to the right on the vehicle front side.
Fig. 3 is a plan view showing the roof cross member corresponding to fig. 1 as viewed from above the vehicle body upper structure according to the modification of the embodiment of the invention.
Fig. 4 is a perspective view of a resin roof, a roof cross member, a roof side rail, and a first reinforcing member applied to a vehicle body upper structure according to a modification of the embodiment of the invention, as viewed from diagonally upper right on the vehicle front side.
Detailed Description
Hereinafter, the present invention will be described in detail based on the illustrated embodiments. In the drawings, the direction of the arrow Fr indicates the vehicle front.
[ first embodiment ]
Fig. 1 shows a vehicle body upper structure according to a first embodiment of the present invention.
As shown in fig. 1, a vehicle body upper portion 1 of a vehicle to which a structure according to a first embodiment of the present invention is applied mainly includes a resin roof 2, a roof cross member 3 extending in a vehicle width direction, roof side members 4 located on the left and right sides and extending on the left and right sides of the vehicle body in a vehicle front-rear direction, and a front roof rail 5 and a rear roof rail 6 extending in the vehicle width direction at front and rear end portions of the vehicle body, respectively. The resin roof 2 is a resin plate or the like for reducing the weight of the vehicle body. The resin roof 2 is peripheral portions of roof side rails 4 located on both left and right sides of the vehicle body upper 1 and a roof front rail 5 and a roof rear rail 6 located at front and rear end portions of the vehicle body upper 1, respectively, and the resin roof 2 is disposed over the entire area of the vehicle body upper 1. The roof side rails 4 extend linearly in the vehicle front-rear direction, and are arranged in parallel with each other at respective positions on both left and right sides of the vehicle body upper portion 1 at predetermined intervals. The roof 2 of the present embodiment is not limited to being made of resin, and may be formed of a plate made of steel instead of resin, or a plate made of a light alloy such as aluminum.
As shown in fig. 1, the roof cross member 3 of the present embodiment has a length that can be bridged between the left and right roof side rails 4, and the roof cross member 3 has left and right opposite end portions 3a in the vehicle width direction, and the left and right opposite end portions 3a are each connected to one roof side rail 4 by spot welding or the like. In addition, the roof cross member 3 is disposed in the vehicle front-rear direction at a position where the center pillar 7 is connected to the roof side rail 4. The center pillar 7 extends in the vehicle up-down direction and has an upper end portion connected to the roof side rail 4.
Further, the roof cross member 3 is formed in a shape having a substantially hat-shaped cross section, and has an opening portion disposed on the vehicle lower side or the vehicle upper side. The roof cross member 3 includes an upper surface portion 31 and flange portions 32 located at front and rear positions of the upper surface portion 31.
In the structure of the vehicle body upper portion 1 according to the present embodiment, as shown in fig. 1, the roof cross member 3 and the roof side members 4 are connected by the corresponding first reinforcing members 8, and each of the first reinforcing members 8 is arranged to extend in the oblique direction from the intermediate portion located in the vicinity of the vehicle width direction central portion of the roof cross member 3 to the corresponding one of the roof side members 4 located on the left and right sides. The first reinforcing members 8 are arranged two by two in the vehicle front side region R1 and the vehicle rear side region R2. The vehicle front side region R1 is a region surrounded by the roof cross member 3, the roof front member 5, and the roof side rails 4 on the left and right sides. The vehicle rear side region R2 is a region surrounded by the roof cross member 3, the roof back member 6, and the roof side rails 4 on the left and right sides.
The first reinforcing member 8 may be arranged in at least one of the vehicle front side region R1 and the vehicle rear side region R2, and need not be arranged in both regions R1 and R2.
The respective first reinforcing members 8 disposed on the left and right sides of the vehicle front side region R1 extend toward the vehicle front while extending from near the vehicle width direction center portion of the roof cross member 3 to one of the roof side rails 4 located on the left and right sides, the roof side rail 4. The first reinforcing members 8 are arranged such that the interval in the vehicle width direction on the base end portion 8a side is smaller than the interval in the vehicle width direction on the tip end portion 8b side. The respective first reinforcing members 8 disposed on the left and right sides of the vehicle rear side region R2 extend toward the vehicle rear while extending from near the vehicle width direction center portion of the roof cross member 3 to one roof rail 4 of the roof rails 4 located on the left and right sides. The first reinforcing members 8 are arranged such that the interval in the vehicle width direction on the base end portion 8a side is smaller than the interval in the vehicle width direction on the tip end portion 8b side. Therefore, in any one of the vehicle front side region R1 and the vehicle rear side region R2, the two first reinforcing members 8 located on the left and right sides are arranged to form a shape converging upward with respect to the roof cross member 3 as viewed from above the vehicle.
The base end portions 8a of the respective first reinforcing members 8 in the vehicle front side region R1 and the vehicle rear side region R2 are connected to the corresponding flange portions 32 on the vehicle front side or the vehicle rear side of the roof cross member 3 by spot welding or the like while being placed on the flange portions 32. In addition, the positions in the vehicle width direction of the base end portions 8a of the first reinforcing members 8 that are connected to the corresponding first reinforcing members 8 in the vicinity of the central portion of the roof cross member 3 in the first reinforcing members 8 are set to be the same in the vehicle front side region R1 and the vehicle rear side region R2. The above positional relationship causes the vehicle front side region R1 and the vehicle rear side region R2 to be configured to effectively generate a reaction force against an input at the time of a vehicle body side collision.
The terminal end portion 8b of each first reinforcing member 8 is connected to the corresponding one of the roof rails 4 located on the left and right sides by spot welding or the like while being placed on the roof rail 4. In addition, the first reinforcing member 8 is set so as to be connected to the terminal end portions 8b of the corresponding roof rails 4 located on the left and right sides at the corresponding same positions in the vehicle front-rear direction in the vehicle front-side region R1 and the vehicle rear-side region R2, respectively.
As described above, the structure of the vehicle body upper portion 1 according to the first embodiment of the invention includes the resin roof 2, the roof cross member 3 extending in the vehicle width direction, the roof side rails 4 located on the left and right sides and extending on the left and right sides of the vehicle body in the vehicle front-rear direction, and the first reinforcing member 8, the first reinforcing member 8 being arranged to extend from the vehicle width direction intermediate portion of the roof cross member 3 in the oblique direction to the corresponding one of the roof side rails 4 located on the left and right sides to connect the roof cross member 3 and the roof side rail 4 to each other, wherein the first reinforcing member 8 is arranged in the vehicle front side region R1 and the vehicle rear side region R2 of the roof cross member 3, whereby the connection strength between the roof cross member 3 and the roof side rails 4 can be increased to improve the torsional rigidity of the vehicle body. In the structure of the vehicle body upper 1 according to the first embodiment, disposing the first reinforcing member 8 that connects the roof cross member 3 and each roof side rail 4 to each other can improve the bending rigidity of the roof cross member 3 and each roof side rail 4. Therefore, the structure of the vehicle body upper portion 1 according to the first embodiment can improve the torsional rigidity and the bending rigidity of the vehicle body without increasing the weight of the vehicle body, so that even when a load is input in a side collision, the torsional deformation of the vehicle body and the deformation of the vehicle compartment, which are deteriorated in the torsional rigidity and the bending rigidity compared to a steel roof because the roof 2 is made of resin, can be suppressed, whereby the torsional rigidity and the side collision performance of the vehicle body can be improved. Further, if the roof 2 of the present embodiment is made of steel, torsional deformation of the vehicle body and deformation of the vehicle compartment can be suppressed and torsional rigidity and side collision performance of the vehicle body can be improved even if the thickness of the roof 2 is thinner than that in the conventional structure.
[ second embodiment ]
Fig. 2 shows a vehicle body upper structure according to a second embodiment of the invention. The same portions as those described in the above-described first embodiment are denoted by the same reference numerals, and overlapping description thereof is omitted.
In the vehicle body upper portion 1 according to the second embodiment, in addition to the structure according to the first embodiment, as shown in fig. 2, second reinforcing members 9 are arranged in the vehicle rear side region R2 to connect the roof back rail 6 to the respective roof side rails 4 on the left and right sides. The second reinforcing member 9 includes: a beam joint portion 91 at which the second reinforcing member 9 is joined to the roof rear rail 6; and rail joint portions 92, the second reinforcing member 9 extending toward the vehicle front in the oblique direction while diverging at the rail joint portions 91 and extending to the corresponding one of the roof rails 4 located on the left and right sides, the rail joint portions 92 each having a tip end portion joined to the corresponding one of the roof rails 4 located on the left and right sides. The beam joint portion 91 of the second reinforcing member 9 is arranged at the vehicle width direction center portion in the vehicle width direction intermediate portion of the roof back beam 6. That is, the second reinforcing member 9 is integrally formed in a substantially V shape as viewed from above the vehicle. The second reinforcing member 9 may also be divided into two members in the same manner as the first reinforcing member 8.
As described above, in the structure of the vehicle body upper 1 according to the second embodiment of the invention, the second reinforcing member 9 is disposed in the vehicle rear side region R2 to connect the roof back rail 6 to each of the roof side rails 4 on the left and right sides, so that the input load of the vehicle body upper 1 can be effectively dispersed, whereby the torsional rigidity and the side collision performance of the vehicle body can be further improved. Further, the beam joint portion 91 of the second reinforcing member 9 is arranged at the vehicle width direction central portion in the vehicle width direction intermediate portion of the roof back rail 6, so that the torsional rigidity and the side collision performance of the vehicle body can be further improved. Other effects are the same as those of the first embodiment described above.
[ third embodiment ]
Fig. 1 shows a vehicle body upper structure according to a third embodiment of the present invention. The same portions as those described in the above-described first embodiment are denoted by the same reference numerals, and overlapping description thereof is omitted.
In the vehicle front side region R1 of the vehicle body upper 1 according to the third embodiment, in addition to the structure according to the first embodiment, as shown in fig. 1, the connecting portions C1 between the roof side rail 4 and the first reinforcing member 8 are disposed all in the middle region M1 of the three-equal-sectioned region in the vehicle front-rear direction between the roof cross rail 3 and the roof front rail 5. Further, in the vehicle rear side region R2 of the vehicle body upper portion 1, the connecting portions C1 between the roof side rail 4 and the first reinforcing member 8 are each arranged such that the connecting portion C1 is located in the middle region M2 of the three equal regions in the vehicle front-rear direction between the roof cross rail 3 and the roof back rail 6.
As described above, in the structure of the vehicle body upper 1 according to the third embodiment of the invention, in the vehicle front side region R1 and the vehicle rear side region R2, each connection C1 between the roof side rail 4 and the first reinforcing member 8 is arranged such that the connection C1 is located in the middle region M1 of the trisections in the vehicle front-rear direction between the roof cross rail 3 and the roof front rail 5 or the middle region M2 of the trisections in the vehicle front-rear direction between the roof cross rail 3 and the roof rear rail 6. Therefore, it is possible to suppress an increase in the difference in rigidity or strength between the vicinity of the joint portion D1 where the roof cross member 3 and each roof side rail 4 are joined, the vicinity of the joint portion D2 where the roof front rail 5 and each roof side rail 4 are joined, and portions other than the vicinity of the joint portion D1 and the joint portion D2.
Therefore, in the structure of the vehicle body upper 1 according to the present embodiment, local deformation in the changing point between the portion having high rigidity and the portion having low rigidity can be suppressed. Further, improvements in both torsional rigidity and side impact performance that contribute to the stability, controllability, and NV performance of the vehicle can be achieved with minimal enhancement. In addition, the roof 2 can be supported over a wide range in the vehicle front-rear direction by the first reinforcement member 8. In particular, the vehicle front side of the roof 2 can be effectively supported by the roof side rail 4, the roof cross rail 3, the roof front rail 5, and the first reinforcing member 8. Therefore, bekatsuki (a state in which the panel is recessed inward) of the roof 2 in the vehicle front side region R1 of the vehicle body upper portion 1 can be suppressed. Other effects are the same as those of the first embodiment described above.
[ fourth embodiment ]
Fig. 2 shows a vehicle body upper structure according to a fourth embodiment of the invention. The same portions as those described in the above-described first to third embodiments are denoted by the same reference numerals, and overlapping description thereof is omitted.
In the vehicle body upper 1 according to the fourth embodiment, in addition to the structures according to the first to third embodiments, as shown in fig. 2, the joint C2 between the roof side rail 4 and the second reinforcing member 9 is the same as the joint C1 between the roof side rail 4 and the first reinforcing member 8, and the joints C2 are arranged so as to be located in the middle area M2 among the three equal areas in the vehicle front-rear direction between the roof cross rail 3 and the roof back rail 6.
As described above, in the structure of the vehicle body upper 1 according to the fourth embodiment of the invention, the connection portions C2 between the roof side rail 4 and the second reinforcing member 9 are each arranged such that the connection portion C2 is located in the middle region M2 of the three-equal-division region in the vehicle front-rear direction between the roof cross rail 3 and the roof rear rail 6. Therefore, it is possible to suppress an increase in the difference in rigidity or strength between the vicinity of the joint portion D3 where the roof back 6 and the roof side rail 4 are joined and the portion other than the vicinity of the joint portion D3.
Therefore, in the structure of the vehicle body upper 1 according to the present embodiment, it is possible to further suppress local deformation in the changing point between the portion having high rigidity and the portion having low rigidity. Therefore, the torsional rigidity and the side collision performance, which contribute to the stability, controllability, and NV performance of the vehicle, can be further improved as compared with the structure according to the third embodiment described above. In addition, the vehicle rear side of the roof 2 can be further effectively supported by the roof side rail 4, the roof cross rail 3, the roof back rail 6, and the second reinforcing member 9. Therefore, bekatsuki of the roof 2 in the vehicle rear side region R2 of the vehicle body upper portion 1 can be further suppressed. Other effects are the same as those of the first to third embodiments described above.
[ fifth embodiment ]
Fig. 2 shows a vehicle body upper structure according to a fifth embodiment of the invention. The same portions as those described in the above-described first to fourth embodiments are denoted by the same reference numerals, and overlapping description thereof is omitted.
In the vehicle body upper 1 according to the fifth embodiment, the joint C3 between the roof cross member 3 and the first reinforcing member 8 is disposed such that the joint C3 is located in at least one of the middle three regions M3 among the five equal regions in the vehicle width direction between the roof side rails 4 on the left and right sides. In the present embodiment, the joint C3 between the roof cross rail 3 and the first reinforcing member 8 is arranged such that the joint C3 is located in the left and right regions M3a, M3b adjacent to the center portion M3C, of the middle three regions M3 among the five equal regions in the vehicle width direction between the left and right roof side rails 4. The joint C3 between the roof cross member 3 and the first reinforcing member 8 may also be arranged such that the joint C3 is located at the center portion M3C in the middle three regions M3 of five equal regions in the vehicle width direction between the roof side rails 4 on the left and right sides.
As described above, in the structure of the vehicle body upper 1 according to the fifth embodiment of the invention, the joint C3 between the roof cross member 3 and the first reinforcing member 8 is disposed such that the joint C3 is located in at least one of the middle three regions M3 among the five equal regions in the vehicle width direction between the roof side rails 4 on the left and right sides. Therefore, it is possible to suppress an increase in the difference in rigidity or strength between the vicinity of the joint portion D2 and the portion other than the vicinity of the joint portion D2.
Therefore, in the structure of the vehicle body upper 1 according to the present embodiment, it is possible to further suppress local deformation in the changing point between the portion having high rigidity and the portion having low rigidity. Therefore, the torsional rigidity and the side collision performance, which contribute to the stability, controllability, and NV performance of the vehicle, can be further improved as compared with the structures according to the third and fourth embodiments described above. In addition, the roof 2 can be supported equally over a wide range in the vehicle front-rear direction by the first reinforcement member 8. Therefore, the bekatsuki of the roof 2 in both the vehicle front side region R1 and the vehicle rear side region R2 of the vehicle body upper portion 1 can be more effectively suppressed. Other effects are the same as those of the first to fourth embodiments described above.
Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various changes and modifications can be made based on the technical idea of the present invention.
For example, although the roof cross member 3 according to each of the first to fifth embodiments is formed linearly in the vehicle width direction when viewed from above the vehicle, as shown in fig. 3, the roof cross member 3A may be formed in an arc shape as follows: the length of the roof cross member 3A in the vehicle front-rear direction gradually increases from the vehicle width direction middle portion thereof toward the roof side rails 4 located on the left and right sides as viewed from above the vehicle. The roof cross member 3A formed as described above increases the joint area between the roof cross member 3A and the roof side rails 4 on the left and right sides, so that the joint strength between the roof cross member 3A and each roof side rail 4 can be further increased.
In addition, although the first reinforcing members 8 are arranged two by two in the vehicle front side region R1 and the vehicle rear side region R2 in the above-described first to fifth embodiments, it is also possible to arrange the first reinforcing members 81 having an integrally formed shape as shown in fig. 4 one by one in the vehicle front side region R1 and the vehicle rear side region R2. The first reinforcing member 81 includes: a bent portion 81a that protrudes toward the roof cross rail 3 side and is joined to a vehicle width direction intermediate portion of the roof cross rail 3; and two inclined portions 81b that extend in the inclined direction toward the vehicle front or the vehicle rear while extending from the bent portion 81a to the corresponding one of the roof rails 4 located on the left and right sides, the two inclined portions 81b each having a distal end portion joined to the corresponding one of the roof rails 4 located on the left and right sides. The use of the first reinforcing member 81 described above can reduce the number of component parts while ensuring the joining strength with the roof cross member 3. Further, the joint portions C3 between the roof cross member 3 and the first reinforcing member 81 are each arranged such that the joint portion C3 is located in at least one of the middle three regions M3 of five equal regions in the vehicle width direction between the roof side rails 4 on the left and right sides.
Description of the reference numerals
1 vehicle body Upper part
2 vehicle roof
3. 3A roof cross beam
3a end part
4 roof rail
5 roof front Beam
6 roof back beam
7 middle column
8 first reinforcing member
8a basal end
8b terminal part
9 second reinforcing member
31 upper surface part
32 flange part
81 first reinforcing member
81a bend
81b inclined part
91 Beam Joint
92 stringer engagement
Connection between C1 roof rail and first reinforcing member
Connection between C2 roof rail and second reinforcing member
Connection between C3 roof rail and first reinforcing member
M1, M2 middle region
Three regions in the middle of M3
Regions located on the left and right sides adjacent to the center portion among three regions M3a and M3b
R1 vehicle front side region
R2 vehicle rear side region
Claims (8)
1. A vehicle body superstructure, comprising:
a resin roof;
a roof cross member extending in a vehicle width direction; and
roof side rails that are located on the left and right sides of the vehicle body and extend in the vehicle front-rear direction on the left and right sides,
characterized in that the roof cross member and the roof side rail are connected to each other by a first reinforcing member arranged to extend from a vehicle width direction intermediate portion of the roof cross member in an oblique direction to the roof side rails on both left and right sides,
the first reinforcing member is arranged in a vehicle front side region and a vehicle rear side region of the roof cross member, a position in a vehicle width direction of a base end portion of the first reinforcing member connected to a corresponding first reinforcing member in the vicinity of a central portion of the roof cross member in the first reinforcing member is set to be the same in the vehicle front side region and the vehicle rear side region,
a roof front rail extending in a vehicle width direction is provided on a front side of the vehicle body,
a roof back rail extending in a vehicle width direction is provided on a rear side of the vehicle body,
the roof back rail and the roof side rail are connected to each other by a second reinforcing member that is arranged to extend from a vehicle width direction intermediate portion of the roof back rail in an oblique direction toward the roof side rail on both left and right sides,
the second reinforcing member includes: a beam joint portion at which the second reinforcing member is joined to the roof back beam; and side rail joint portions that extend in a vehicle front direction in an oblique direction while branching at the side rail joint portions and extend to a corresponding one of the roof side rails on both left and right sides, each of the side rail joint portions having a tip end portion joined to a corresponding one of the roof side rails on both left and right sides, the side rail joint portions being disposed at a vehicle width direction central portion in a vehicle width direction intermediate portion of the rear roof rail,
the connection portion between the roof side rail and the first reinforcing member is disposed in a middle region of three equal regions in the vehicle front-rear direction between the roof cross rail and the roof front rail, and
the connecting portion between the roof side rail and the second reinforcing member is disposed in a middle region of three equal regions in the vehicle front-rear direction between the roof cross rail and the roof rear rail.
2. The vehicle body upper structure according to claim 1,
the connection between the roof rail and the first reinforcing member is at least partially arranged in the following region: and left and right side regions adjacent to the center portion, of the three regions located in the middle of the five equal regions in the vehicle width direction between the left and right side roof rails.
3. The vehicle body upper structure according to claim 1,
the roof rail is formed in an arc shape as follows: the length of the roof cross member in the vehicle front-rear direction gradually increases from a middle portion of the roof cross member in the vehicle width direction toward the roof side rails located on the left and right sides.
4. The vehicle body upper structure according to claim 1,
the first reinforcing member includes a bent portion joined to the roof cross member, and an inclined portion extending from the bent portion in an inclined direction toward and joined to the roof side rails on both left and right sides.
5. A vehicle body superstructure, comprising:
a vehicle roof;
a roof cross member extending in a vehicle width direction; and
roof side rails that are located on the left and right sides of the vehicle body and extend in the vehicle front-rear direction on the left and right sides,
characterized in that the roof cross member and the roof side rail are connected to each other by a first reinforcing member arranged to extend from a vehicle width direction intermediate portion of the roof cross member in an oblique direction toward the roof side rail on both left and right sides,
the first reinforcing member is arranged in a vehicle front side region and a vehicle rear side region of the roof cross member, a position in a vehicle width direction of a base end portion of the first reinforcing member connected to a corresponding first reinforcing member in the vicinity of a central portion of the roof cross member in the first reinforcing member is set to be the same in the vehicle front side region and the vehicle rear side region,
a roof front rail extending in a vehicle width direction is provided on a front side of the vehicle body,
a roof back rail extending in a vehicle width direction is provided on a rear side of the vehicle body,
the roof back rail and the roof side rail are connected to each other by a second reinforcing member that is arranged to extend from a vehicle width direction intermediate portion of the roof back rail in an oblique direction toward the roof side rail on both left and right sides,
the second reinforcing member includes: a beam joint portion at which the second reinforcing member is joined to the roof back beam; and side rail joint portions that extend in a vehicle front direction in an oblique direction while branching at the side rail joint portions and extend to a corresponding one of the roof side rails on both left and right sides, each of the side rail joint portions having a tip end portion joined to a corresponding one of the roof side rails on both left and right sides, the side rail joint portions being disposed at a vehicle width direction central portion in a vehicle width direction intermediate portion of the rear roof rail,
the connection portion between the roof side rail and the first reinforcing member is disposed in a middle region of three equal regions in the vehicle front-rear direction between the roof cross rail and the roof front rail, and
the connecting portion between the roof side rail and the second reinforcing member is disposed in a middle region of three equal regions in the vehicle front-rear direction between the roof cross rail and the roof rear rail.
6. The vehicle body upper structure according to claim 5,
the connection between the roof rail and the first reinforcing member is at least partially arranged in the following region: and left and right side regions adjacent to the center portion, of the three regions located in the middle of the five equal regions in the vehicle width direction between the left and right side roof rails.
7. The vehicle body upper structure according to claim 5,
the roof rail is formed in an arc shape as follows: the length of the roof cross member in the vehicle front-rear direction gradually increases from a middle portion of the roof cross member in the vehicle width direction toward the roof side rails located on the left and right sides.
8. The vehicle body upper structure according to claim 5,
the first reinforcing member includes a bent portion joined to the roof cross member, and an inclined portion extending from the bent portion in an inclined direction toward and joined to the roof side rails on both left and right sides.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-176802 | 2016-09-09 | ||
| JP2016176802 | 2016-09-09 | ||
| JP2017117784A JP6900797B2 (en) | 2016-09-09 | 2017-06-15 | Body superstructure |
| JP2017-117784 | 2017-06-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107804373A CN107804373A (en) | 2018-03-16 |
| CN107804373B true CN107804373B (en) | 2021-04-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710691507.XA Active CN107804373B (en) | 2016-09-09 | 2017-08-14 | Vehicle body superstructure |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN107804373B (en) |
| DE (1) | DE102017116752A1 (en) |
| FR (1) | FR3055880B1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7322522B2 (en) * | 2019-06-05 | 2023-08-08 | マツダ株式会社 | upper body structure |
| DE102020125998A1 (en) | 2020-10-05 | 2022-04-07 | Bayerische Motoren Werke Aktiengesellschaft | Vehicle with a roof crossbar |
| US11541939B2 (en) * | 2021-01-05 | 2023-01-03 | GM Global Technology Operations LLC | Laminate composite roof panels with internal localized structural reinforcements for motor vehicles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011114662A1 (en) * | 2011-09-30 | 2013-04-04 | Daimler Ag | Vehicle roof for body of combination motor car, has rectangular frame structure formed by lateral, front and rear roof frame parts, and diagonal hoop assembly arranged within rectangular frame structure and fastened at roof frame parts |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4852017B2 (en) | 2007-08-06 | 2012-01-11 | 本田技研工業株式会社 | Body superstructure |
| DE102011003697B4 (en) * | 2011-02-07 | 2020-12-03 | Bayerische Motoren Werke Aktiengesellschaft | Motor vehicle with a supporting structure for a vehicle roof |
| US9045168B2 (en) * | 2011-09-29 | 2015-06-02 | Ford Global Technologies, Llc | Vehicle roof brace |
| EP2889204A4 (en) * | 2012-08-27 | 2016-04-13 | Toray Industries | Roof structure for vehicle |
| JP6304066B2 (en) * | 2015-02-18 | 2018-04-04 | マツダ株式会社 | Upper body structure of the vehicle |
| JP6229676B2 (en) * | 2015-02-18 | 2017-11-15 | マツダ株式会社 | Upper body structure of the vehicle |
| US9731768B2 (en) * | 2015-03-27 | 2017-08-15 | Ford Global Technologies, Llc | Vehicle structural reinforcing device |
-
2017
- 2017-07-25 DE DE102017116752.8A patent/DE102017116752A1/en active Pending
- 2017-08-14 CN CN201710691507.XA patent/CN107804373B/en active Active
- 2017-09-08 FR FR1758278A patent/FR3055880B1/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011114662A1 (en) * | 2011-09-30 | 2013-04-04 | Daimler Ag | Vehicle roof for body of combination motor car, has rectangular frame structure formed by lateral, front and rear roof frame parts, and diagonal hoop assembly arranged within rectangular frame structure and fastened at roof frame parts |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3055880A1 (en) | 2018-03-16 |
| FR3055880B1 (en) | 2019-11-08 |
| DE102017116752A1 (en) | 2018-03-15 |
| CN107804373A (en) | 2018-03-16 |
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