Automobile body
1. An automobile body defining at least a vehicle compartment, comprising:
a cowl cross member extending in a left-right direction along a front portion of the vehicle compartment;
a rocker extending rearward from one end of the cowl cross member along a side portion of the vehicle compartment;
a front pillar extending upward from the rocker along a side portion of the vehicle compartment; and
a reinforcement panel having one end coupled to the cowl cross member and the other end coupled to the front pillar,
an inner wall of the cowl cross member on the cabin side has a non-flat shape forming at least one curved portion extending in the left-right direction,
the one end of the reinforcement panel has, at least partially, a shape curved in correspondence with the non-flat shape of the cowl cross member.
2. The motor vehicle body of claim 1,
the reinforcing plate has a shape forming at least one bent portion extending from the one end to the other end.
3. The motor vehicle body according to claim 1 or 2,
the other end of the reinforcing plate is also combined with the threshold.
4. The motor vehicle body according to any one of claims 1 to 3,
an opening is formed in an inner wall of the front pillar on the cabin side,
the reinforcing plate covers at least a part of the opening.
5. The motor vehicle body of claim 4,
a cover plate for closing the opening is attached to the reinforcing plate.
6. The motor vehicle body of claim 5,
an annular seal member is interposed between the cover plate and the front pillar.
7. The motor vehicle body according to any one of claims 1 to 6,
the front wall cross member comprises a 1 st front wall cross member and a 2 nd front wall cross member which is positioned above the 1 st front wall cross member,
the front end of the doorsill is connected with one end of the 1 st front wall beam,
the one end of the reinforcement panel is joined to the 2 nd cowl cross member.
8. The motor vehicle body according to any one of claims 1 to 7,
the vehicle body further has a front side member extending forward from the cowl cross member.
Background
Japanese patent laid-open No. 2005-193843 discloses an automobile body. In this automobile body, the cowl cross member and the front pillar are connected to each other via a reinforcement panel. It is described that: with this configuration, deformation of the front pillar toward the vehicle compartment can be suppressed during a side collision.
Disclosure of Invention
Automobile bodies are required to have excellent collision safety performance, and are required to satisfy a certain level (safety standard) in various collision tests. Among them, the offset (SOL) crash test is considered to be one of the most severe crash tests in that the crash load is concentrated on a part of the vehicle body. The present specification provides a technique capable of improving the collision safety performance of an automobile body including an offset collision test.
The technology disclosed in this specification is embodied in an automotive body that defines at least a passenger compartment. The automobile body is provided with: a cowl cross member extending in a left-right direction along a front portion of the vehicle compartment; a rocker extending rearward from one end of the cowl cross member along a side portion of the vehicle compartment; a front pillar extending upward from the rocker along a side portion of the vehicle compartment; and a reinforcing plate, one end of which is combined with the front wall beam and the other end of which is combined with the front pillar. An inner wall of the cowl cross member on the cabin side has a non-flat shape forming at least one curved portion extending in the left-right direction. Also, one end of the reinforcement plate has a shape curved corresponding to the non-flat shape of the cowl cross member at least partially.
In the above-described configuration, the non-flat inner wall of the cowl cross member forms at least one curved portion in the left-right direction, and one end of the reinforcement panel joined to the inner wall has a shape curved at least partially along the non-flat inner wall. According to such a configuration, the rigidity of each of the joint portions of the front cross member and the reinforcing plate is improved, and both are strongly joined. As a result, the cowl cross member and the front pillar are firmly connected via the reinforcement panel, and the cowl cross member receiving the collision load can be strongly supported by the rocker and the front pillar. Thus, for example, in an offset collision test, the cowl cross member can be intentionally prevented from being deformed toward the vehicle compartment.
Drawings
Fig. 1 shows an external appearance of an automobile body 10 of the embodiment.
Fig. 2 is a plan view showing a part including the cowl cross member 18.
Fig. 3 is a perspective view showing a portion to which the reinforcing plate 30 is attached.
Fig. 4 is a perspective view of the portion shown in fig. 3 in a state where the reinforcing plate 30 is removed.
Fig. 5 is a perspective view showing the reinforcing plate 30.
Fig. 6 is a cross-sectional view perpendicular to the left-right direction, and shows a cross section of the cowl cross member 18.
Fig. 7 is a cross-sectional view perpendicular to the vertical direction, showing a portion where the reinforcing plate 30 is attached.
Fig. 8 is a cross-sectional view perpendicular to the front-rear direction, and shows the reinforcement plate 30 and the cover plate 32 covering the opening 50 of the front pillar 26.
Fig. 9 is a cross-sectional view perpendicular to the vertical direction, and shows the reinforcement plate 30 and the cover plate 32 that cover the opening 50 of the front pillar 26.
Detailed Description
In fig. 1 to 9, the direction FR indicates the front in the front-rear direction, and the opposite direction indicates the rear in the front-rear direction. In addition, the direction RH represents the right in the left-right direction, and the opposite direction represents the left in the left-right direction. Also, the direction UP indicates an upward direction in the UP-down direction, and the opposite direction indicates a downward direction in the UP-down direction.
In one embodiment of the present technology, the reinforcing plate may also have a shape that forms at least one bent portion extending from one end to the other end. According to such a structure, the cowl cross member and the front pillar are further strongly joined to each other by the reinforcement panel by further improving the rigidity of the reinforcement panel.
In one embodiment of the present technology, the other end of the reinforcing plate may also be bonded to the rocker. With this structure, the cowl cross member and the rocker are further strongly connected by the reinforcement panel.
In one embodiment of the present technology, an opening may be formed in an inner wall of the front pillar on the cabin side. In this case, the reinforcing plate may cover at least a part of the opening. At least a part of the opening is covered by the reinforcing plate, so that intrusion of foreign matter into the vehicle compartment through the opening can be suppressed.
In the above-described embodiment, a cover plate for closing the opening may be attached to the reinforcing plate. With this configuration, the reinforcing plate and the cover plate can be designed separately, and the opening of the front pillar can be closed without affecting the mechanical strength of the reinforcing plate.
In the above-described embodiment, an annular seal member may be interposed between the cover plate and the front pillar. With this configuration, it is possible to suppress the intrusion of fine foreign matter and rainwater into the vehicle compartment.
In one embodiment of the present technology, the cowl cross member may include a 1 st cowl cross member and a 2 nd cowl cross member located above the 1 st cowl cross member. In this case, the front end of the rocker may be connected to one end of the 1 st cowl cross member. Also, one end of the reinforcement plate may be joined to the 2 nd cowl cross member.
In one embodiment of the present technology, the automobile body may further include a front side member extending forward from the cowl cross member. In this case, the front end of the front side member may be connected to a bumper reinforcement (bumper reinforcement) via, for example, a crash box.
In the present specification, the term "front-rear direction" refers to the front-rear direction of the vehicle body. Similarly, the term "left-right direction" refers to the left-right direction of the vehicle body, and the term "up-down direction" refers to the up-down direction of the vehicle body. For example, when the automobile is disposed on a horizontal plane, the vertical direction of the automobile body coincides with the vertical direction. The left-right direction of the vehicle body is a direction parallel to the axle of the vehicle, and the front-rear direction of the vehicle body is a direction parallel to the horizontal plane and perpendicular to the axle of the vehicle.
Representative, non-limiting examples of the present disclosure are described in detail below with reference to the accompanying drawings. The detailed description is simply intended to show the detailed structure of the preferred embodiment for implementing the disclosure to those skilled in the art, and is not intended to limit the scope of the disclosure. In addition, the additional features and disclosures disclosed below can be used separately or together with other features, techniques in order to provide further improved vehicle bodies.
In addition, combinations of features and steps disclosed in the following detailed description are not necessary to practice the present disclosure in the broadest sense, and are instead described in order to describe representative specific examples of the present disclosure in particular. Furthermore, the various features of the representative examples described above and below, as well as the various features described in the independent and dependent claims, do not necessarily have to be combined in the order in which they are presented or in the specific examples described herein to provide additional and useful embodiments of the present disclosure.
All features described in the present specification and/or claims are intended to be disclosed separately and independently from each other as limitations to the specific matter originally disclosed and claimed in the application, as opposed to features described in the embodiments and/or claims. Further, all statements herein relating to ranges of values and groups or clusters are intended to disclose intermediate structures therebetween as limitations on the particular matters originally disclosed and claimed.
[ examples ] A method for producing a compound
The automobile body 10 of the embodiment is explained with reference to the drawings. The automobile body 10 of the present embodiment is not particularly limited, but may be applied to an electric automobile, for example. The electric vehicle as referred to herein broadly refers to a vehicle in which one or more wheels are driven by a motor, and includes, for example, a rechargeable electric vehicle charged by an external power supply, a fuel cell vehicle using a fuel cell as a power supply, a hybrid vehicle further including an engine, and the like. However, the automobile body 10 of the present embodiment is not limited to an electric automobile, and may be used for other types of automobiles such as an engine car. Further, the automobile body 10 of the present embodiment is made of metal, but the material constituting the automobile body 10 is not limited to metal.
Here, the automobile body 10 of the present embodiment has a substantially bilaterally symmetric structure. Therefore, in the following description, the same reference numerals are given to the bilaterally symmetric structures, and the right-side structure will be mainly described, and redundant description of the left-side structure will be omitted. That is, unless otherwise mentioned, the features described below are applicable not only to the structure on the right side but also to the structure on the left side.
As shown in fig. 1 to 3, an automobile body 10 defines a cabin 12 and a front component 14 located in front of the cabin 12. The automobile body 10 includes a cowl panel (dash panel)16 and a cowl cross member (dash crossmemer) 18. The cowl 16 is a partition wall that separates the vehicle cabin 12 from the engine compartment 14. The cowl 16 expands in the left-right direction and the up-down direction along the front portion of the vehicle compartment 12. The cowl cross member 18 is one of skeleton portions of the automobile body 10. The cowl cross 18 is provided along the cowl 16, extending in the left-right direction along the front of the vehicle cabin 12.
The cowl cross member 18 in the present embodiment includes a 1 st cowl cross member 20 and a 2 nd cowl cross member 22. The 1 st and 2 nd cowl cross members 20 and 22 each have a cylindrical shape forming a closed space in the left-right direction (see fig. 6). The 2 nd cowl cross member 22 is located above the 1 st cowl cross member 20, and the two cowl cross members 20, 22 are adjacent to each other and extend in the left-right direction. Although not particularly limited, the two cowl cross members 20, 22 have different sectional shapes from each other, and the sectional area of the 1 st cowl cross member 20 is larger than that of the 2 nd cowl cross member 22.
The automobile body 10 further includes a pair of front side frames 40. The pair of front side members 40 are disposed in the automobile body 10 so as to be bilaterally symmetrical. Each front side member 40 is one of the skeleton portions of the automobile body 10, and is located in the engine compartment 14. Each front side member 40 extends forward from the front cross member 18. The front end of each front side member 40 is connected to a bumper reinforcement 42, for example, via a crash box.
The vehicle body 10 further includes a pair of side sills 24. The pair of rocker panels 24 is disposed in the vehicle body 10 so as to be bilaterally symmetrical. Each rocker 24 is one of the framework portions of the vehicle body 10, also referred to as a rocker. A floor pan 28 that defines the floor of the vehicle compartment 12 is provided between the pair of rocker doors 24. The right rocker 24 extends rearward from the right end of the cowl cross member 18 (specifically, the right end of the 1 st cowl cross member 20) along the right side portion of the vehicle compartment 12. The left side rocker 24 extends rearward from the left end of the cowl cross member 18 (more specifically, the left end of the 1 st cowl cross member 20) along the left side portion of the vehicle cabin 12. Each rocker 24 is not particularly limited, but has a tubular shape forming a closed space along the front-rear direction (see fig. 8).
The automobile body 10 further includes a pair of front pillars 26. The pair of front pillars 26 is provided in the automobile body 10 so as to be bilaterally symmetrical. Each front pillar 26 is one of the skeletal sections of the automobile body 10, also referred to as an a-pillar. The right front pillar 26 extends upward from the right rocker 24 along the right side portion of the vehicle compartment 12. Similarly, the left front pillar 26 extends upward from the left rocker 24 along the left side portion of the vehicle cabin 12. Although not particularly limited, each front pillar 26 has a cylindrical shape that forms a closed space in the vertical direction (see fig. 7).
The automobile body 10 further includes a pair of reinforcing plates 30. The pair of reinforcement plates 30 is provided in the automobile body 10 so as to be bilaterally symmetrical. Each reinforcement panel 30 is combined with the cowl cross member 18, the rocker 24, and the front pillar 26. Specifically, one end 30a of the reinforcement panel 30 is coupled to the cowl cross member 18 (specifically, the 2 nd cowl cross member 22) via the coupling members 36a and 36 b. The other end 30b of the reinforcing plate 30 is coupled to the front pillar 26 via a coupling member 36c, and is coupled to the rocker 24 via a coupling member 36 d. The reinforcing plate 30 is attached by the plurality of coupling members 36a to 36d and can be removed at the time of maintenance or repair, for example. However, the structure for joining the reinforcing plates 30 is not particularly limited. For example, the reinforcement plate 30 may be welded to the cowl cross member 18 and the front pillar 26.
As shown in fig. 3 to 5, the inner wall 23 of the cowl cross member 18 (specifically, the 2 nd cowl cross member 22) on the vehicle cabin 12 side partially bulges toward the vehicle cabin 12 side and has a non-flat shape. Thereby, at least one bent portion 23X (for example, a peak portion or a valley portion) is formed in the left-right direction on the inner wall 23 of the front cross member 18. At least a part of one end 30a of the reinforcement panel 30, which is joined to the inner wall 23, is given a curved shape corresponding to the non-flat shape of the cowl cross member 18. Similarly, the inner wall 27 of the front pillar 26 located in the vehicle compartment 12 partially bulges toward the vehicle compartment 12 side and has a non-flat shape. Thereby, at least one bent portion 27X is formed in the front-rear direction on the inner wall 27 of the front pillar 26. The other end 30b of the reinforcing plate 30, which is connected to the inner wall 27, is at least partially provided with a curved shape corresponding to the non-flat shape of the front pillar 26. However, the inner wall 27 of the front pillar 26 may be a flat surface without the curved portion 27X. Accordingly, the other end 30b of the reinforcing plate 30 may have a flat shape.
As described above, in the automobile body 10 of the present embodiment, the gusset 30 is coupled to each of the cowl cross member 18 and the front pillar 26, and connects both of them to each other. At the joint portion of the cowl cross member 18 and the reinforcement panel 30, the non-flat inner wall 23 of the cowl cross member 18 is formed with at least one curved portion 23X in the left-right direction, and one end 30a of the reinforcement panel 30 has a shape curved at least partially along the non-flat inner wall 23. According to such a configuration, the rigidity of each of the joint portions between the front cross member 18 and the reinforcing plate 30 is improved, and the both are strongly joined. As a result, the cowl cross member 18 and the front pillar 26 are strongly coupled to each other via the reinforcement panel 30. Thus, when the automobile is involved in a frontal collision, the cowl cross member 18 receiving the collision load can be strongly supported by the rocker 24 and the front pillar 26. Therefore, for example, in the offset collision test, the cowl cross member 18 can be intentionally prevented from being deformed toward the vehicle cabin 12.
Although not particularly limited, in the automobile body of the present embodiment, at least one bent portion 27X is formed along the front-rear direction in the non-flat inner wall 27 of the front pillar 26 also at the joint portion of the front pillar 26 and the reinforcement panel 30, and the other end 30b of the reinforcement panel 30 also has a shape that is bent at least partially along the non-flat inner wall 27. This also increases the rigidity of the joint between the front pillar 26 and the reinforcing plate 30, and the two are firmly joined to each other.
The specific shape of the reinforcing plate 30 is not particularly limited. As an example, as shown in fig. 5, the reinforcing plate 30 in the present embodiment has a so-called hat (hat) shape (a shape having flanges at both ends of a groove shape), and continuously bulges out from the middle portion in the up-down direction from one end 30a to the other end 30 b. Thus, the reinforcing plate 30 is formed with a plurality of bent portions 30X. Thus, when the reinforcing plate 30 forms at least one bent portion 30X extending from the one end 30a to the other end 30b, the rigidity of the reinforcing plate 30 is intentionally increased. Further, since the rigidity of the reinforcement panel 30 is improved, the cowl cross member 18 and the front pillar 26 are further strongly coupled to each other by the reinforcement panel 30.
As shown in fig. 4, an opening 50 may also be formed in the inner wall 27 of the front pillar 26. In this case, the reinforcing plate 30 may be configured to cover at least a part of the opening 50. By covering at least a part of the opening 50 with the reinforcement plate 30, it is possible to suppress the entry of foreign matter into the vehicle compartment 12 through the opening 50. As shown in fig. 5, 8, and 9, the reinforcing plate 30 in the present embodiment is attached with a cover plate 32 that closes the opening 50. When the reinforcing plate 30 and the cover plate 32 are separate members, the reinforcing plate 30 and the cover plate 32 can be designed separately, and the opening 50 of the front pillar 26 can be reliably closed without affecting the mechanical strength of the reinforcing plate 30. An annular seal member 34 is inserted between the cover plate 32 and the front pillar 26. The seal member 34 surrounds the opening 50 and suppresses entry of fine foreign matter and rainwater into the vehicle cabin 12.
As described above, in the automobile body 10 of the present embodiment, the cowl cross member 18 includes the 1 st cowl cross member 20 and the 2 nd cowl cross member 22 located above the 1 st cowl cross member 20. The front end of the rocker 24 is connected to the 1 st cowl cross member 20. On the other hand, the reinforcement plate 30 is joined to the 2 nd cowl cross member 22. However, as another embodiment, the cowl cross member 18 may be a single member, or may be a set of three or more cowl cross members.
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