JP6334107B2 - Vehicle body side structure - Google Patents

Description

  The present invention relates to a vehicle body side part structure having a frame-shaped panel in which a side outer panel forming an outer side surface of a vehicle body forms an outer edge portion in the surface direction and is integrally formed.

  Conventionally, there is a vehicle body side structure of the vehicle described in Patent Document 1 below. In particular, according to [FIG. 11] (a) of this publication, there is provided a sheet metal side outer panel that forms the outer side surface of the vehicle body, the front end of which is supported on the running surface by the front and rear wheels. It is done. The side outer panel includes a frame-shaped panel that forms an outer edge portion in the surface direction and is integrally pressed and formed, and is pressure-formed integrally with the frame-shaped panel. A center pillar outer panel that is installed in each middle part in the front-rear direction of the vehicle body and connects the middle parts, and a front and rear door opening that is formed so as to be surrounded by the frame-shaped panel and the center pillar outer panel. doing.

  According to the vehicle body side part structure of the vehicle, since the side outer panel is integrally formed by pressurization as a whole, firstly, the side outer panel can be easily formed. This is preferable in terms of the productivity of the vehicle body.

  Second, since the side outer panel has structural continuity in the surface direction, the rigidity of each part in the surface direction is smoothly changed to prevent abrupt change. Is prevented from occurring. Therefore, when an impact force is applied to the vehicle body from the traveling surface via the front and rear wheels during traveling of the vehicle, it is prevented that stress concentration occurs at the rigidity break point and the side outer panel is easily deformed. It is preferable in terms of maneuverability and ride comfort.

JP 2001-334957 A

  Incidentally, as described above, the side outer panel is supported at both ends by the front and rear wheels with respect to the traveling surface of the vehicle. Therefore, when an impact force is applied to the side outer panel from the traveling surface via the front and rear wheels when the vehicle is traveling, a large bending moment is applied to each of the middle portions of the upper and lower members of the side outer panel due to the impact force. Tends to be given. As a result, when the side outer panel is simply formed integrally, a large external force is applied from the upper and lower members to the center pillar outer panel that joins the middle portions of the lower member to each other. The outer panel is likely to bend and deform elastically in the width direction of the vehicle body, which is the thickness direction.

  Here, the center pillar outer panel constitutes a central portion in the surface direction of the side outer panel. For this reason, when the center pillar outer panel is greatly bent and deformed as described above, the side outer panel tends to be deformed such as torsion, which may cause a reduction in vehicle handling and riding comfort.

  Therefore, it is conceivable to increase the cross-sectional area of each part in the longitudinal direction of the center pillar outer panel to improve its rigidity and to prevent the center pillar outer panel from being bent and deformed. However, if this is simply done, the opening of the front and rear doors is narrowed due to the center pillar outer panel having a large cross-sectional area, and there is a possibility that getting in and out of the passenger compartment through these door openings may be hindered. .

  The present invention has been made paying attention to the above situation, and the main object of the present invention is to control the vehicle when the side outer panel forming the outer surface of the vehicle body can be easily formed. The goal is to maintain good safety and ride comfort.

According to the first aspect of the present invention, there is provided a side outer panel 15 that forms the outer surface of the vehicle body 2, the front and rear ends of which are supported on the running surface 8 by the front and rear wheels 6, 7. However, the frame-shaped panel 19 that forms the outer edge portion in the surface direction and is integrally formed, and the frame-shaped panel 19 and the lower members 20 and 21 are respectively installed in the middle portions in the longitudinal direction of the vehicle body 2 A vehicle body side portion having a center pillar outer panel 22 for connecting these midway portions, and front and rear door openings 27 and 28 formed so as to be surrounded by the frame-shaped panel 19 and the center pillar outer panel 22. In structure
The frame-shaped panel 19 is integrally formed by pressing from a single sheet metal material, and the center pillar outer panel 22 is formed separately from the frame-shaped panel 19, and the center pillar outer panel is formed without using a reinforcing member. The vehicle body side structure is characterized in that the strength of the center pillar outer panel 22 is made larger than that of the frame-shaped panel 19 by using an ultra-high strength steel plate 22.

According to the second aspect of the present invention, there is provided a side outer panel 15 that forms the outer side surface of the vehicle body 2, the front and rear ends of which are supported on the traveling surface by the front and rear wheels 6, 7. The frame-shaped panel 19 that is integrally formed to constitute the outer edge portion in the surface direction, and the frame-shaped panel 19 are respectively installed on the middle portions in the front-rear direction of the vehicle body 2 on the lower members 20 and 21. A vehicle body side structure having a center pillar outer panel 22 that joins these midway portions, and front and rear door openings 27 and 28 formed so as to be surrounded by the frame-shaped panel 19 and the center pillar outer panel 22. In
The frame-shaped panel 19 and the center pillar outer panel 22 are integrally press-formed from a single sheet metal material, and only the center pillar outer panel 22 is quenched to have high strength, without using a reinforcing member. The vehicle body side structure of the vehicle is characterized in that the strength of the center pillar outer panel 22 is greater than that of the frame-shaped panel 19.

  In addition, in this section, the reference numerals and drawing numbers appended to the above terms are not intended to limit the technical scope of the present invention to the “Example” section and the contents of the drawings described later.

  The effects of the present invention are as follows.

According to the first aspect of the present invention, there is provided a side outer panel that forms the outer side surface of the vehicle body, the front and rear end portions thereof are supported on the traveling surface by the front and rear wheels, and the side outer panel has an outer edge in the surface direction. A frame-shaped panel that is formed integrally with each other, a center pillar outer panel that is installed on each of the mid-portions of the vehicle body in the front-rear direction of the vehicle body on the frame-shaped panel and connects the mid-portions In a vehicle body side structure having a front door and a rear door opening formed so as to be surrounded by the frame-shaped panel and the center pillar outer panel,
The frame-shaped panel is integrally formed by pressing from a single sheet metal material, and the center pillar outer panel is formed separately from the frame-shaped panel, so that the center pillar outer panel is super-high without using a reinforcing member. By using a tension steel plate, the strength of the center pillar outer panel is made larger than that of the frame-shaped panel.

  Therefore, as described above, at least the frame-shaped panel of the side outer panel is integrally formed, so that the side outer panel can be easily formed.

  On the other hand, when an impact force is applied to the side outer panel from the traveling surface via the front and rear wheels during traveling of the vehicle, the surface of the side outer panel is installed on the frame-shaped panel in the side outer panel and in each middle portion of the lower member. A large external force is applied to the center pillar outer panel constituting the central portion of the direction, and this center pillar outer panel may be elastically bent and deformed elastically in the width direction of the vehicle body, which is the thickness direction.

  However, according to the invention, since the strength of the center pillar outer panel is increased, it is possible to easily improve the rigidity of the center pillar outer panel, and thereby the center pillar constituting the central portion in the surface direction of the side outer panel. It is more reliably prevented that the outer panel is easily bent and deformed by the impact force. Therefore, it is possible to more reliably prevent the side outer panel from being deformed, such as torsion, by the impact force during traveling of the vehicle, and as a result, the operability and riding comfort of the vehicle are maintained well.

  Further, when an object collides (side impact) with the side surface of the vehicle body, the impact force is firmly supported by the center pillar outer panel having high rigidity as described above, and this center pillar outer panel is inside the vehicle body. Large deformation of the glue is more reliably prevented. This is extremely useful for protecting passengers inside the vehicle body corresponding to the front, rear front, and rear door openings of the center pillar outer panel.

  In addition, since the strength of the center pillar outer panel is increased as described above, the rigidity of the center pillar outer panel can be improved while suppressing an increase in the cross-sectional area of each part in the longitudinal direction of the center pillar outer panel. Therefore, even when the rigidity of the center pillar outer panel is improved as described above, the front and rear door openings are prevented from being narrowed due to the center pillar outer panel, and the passenger can enter and exit the vehicle compartment smoothly through these door openings. Can be.

  The various effects can be achieved by integrally forming the frame-shaped panel of the side outer panel and by making the strength of the center pillar outer panel larger than that of the frame-shaped panel. Therefore, according to the above-described invention, compared with the general prior art in which each part of the side outer panel is individually formed and assembled and the reinforcing material is provided in each of the parts, the reinforcing material is reduced in size or unnecessary. Accordingly, the configuration of the vehicle body can be made simpler and lighter, and the productivity can be improved.

Further , the center pillar outer panel can freely set various conditions such as the plate thickness without being affected by the plate thickness and material of the frame-shaped panel. Therefore, the center pillar outer panel is improved in the degree of freedom in setting various conditions such as the shape of the center pillar outer panel, thereby obtaining a desired side outer panel in terms of the strength and appearance of the vehicle body. Can do.

According to a second aspect of the present invention, the center pillar outer panel is formed integrally with the frame-shaped panel.
Because it is, in a frame shape panel and a center pillar outer panel of the side outer panel separately formed, compared to be assembled to each other, forming working of the side outer panel may more easily.

It is a simplified side view of a vehicle body. FIG. 2 is an enlarged sectional view taken along line II-II in FIG. 1. FIG. 3 is an enlarged sectional view taken along line III-III in FIG. 1.

  In the vehicle body side part structure of the vehicle according to the present invention, when the operation of forming the side outer panel that forms the outer side surface of the vehicle body can be facilitated, the operability and ride comfort of the vehicle are maintained well. In order to realize the main object, the form for carrying out the present invention is as follows.

  That is, the vehicle body side structure is provided with a side outer panel that forms the outer side surface of the vehicle body, the front and rear end portions of which are supported on the running surface by the front and rear wheels. This side outer panel is constructed in a frame-shaped panel that forms an outer edge part in the surface direction and is integrally formed, and on each frame-shaped panel, each of the middle part in the front-rear direction of the vehicle body, A center pillar outer panel that joins the midway portions, and a front door opening and a rear door opening that are formed so as to be surrounded by the frame-shaped panel and the center pillar outer panel. The strength of the center pillar outer panel is made larger than that of the frame-shaped panel.

  In order to explain the present invention in more detail, an embodiment thereof will be described with reference to the accompanying drawings.

  In the figure, reference numeral 1 is a vehicle exemplified by an automobile, and an arrow Fr indicates the front in the traveling direction of the vehicle 1.

  The vehicle body 2 of the vehicle 1 is made of a sheet metal that constitutes a lower part of the vehicle body 2 and a vehicle body frame 3 that constitutes a skeleton member of the vehicle body 2, and is supported on the vehicle body frame 3. Body body 5 and a pair of left and right front and rear wheels 6 and 7 supported by a suspension device (not shown) at the front and rear of the body frame 3, respectively. Thus, the vehicle body 2 is supported on the traveling surface 8.

  The vehicle body 5 includes left and right side walls 11 and a roof panel 12 that is installed on each upper edge of the left and right side walls 11 and forms the upper surface of the vehicle compartment 4. Further, the side wall 11 forms an outer side surface, and the front and rear end portions of the side wall 11 are supported on the traveling surface 8 by the front and rear wheels 6 and 7, and the side outer panel 15 is attached to the side outer panel 15. It has a side inner panel 16 which faces a little away from the chamber 4 side and forms the inner surface of the vehicle compartment 4. The outer edge portions of the side outer and side inner panels 15 and 16 are connected to each other by spot welding, and each portion of the side wall 11 has a hollow closed cross-sectional structure to improve strength and rigidity. Further, at least a part of each of the front and rear end portions of the side outer panel 15 is located above the front and rear wheels 6 and 7 in a side view of the vehicle body 2 (FIG. 1).

  The side outer panel 15 constitutes an outer edge portion in the surface direction, and includes a frame-shaped panel 19 integrally formed by pressure from a single sheet metal material, and upper and lower members 20 and 21 on the frame-shaped panel 19. Each has a center pillar outer panel 22 that is installed in each midway portion of the vehicle body 2 in the front-rear direction and connects the midway portions. The side inner panel 16 has the same configuration as the side outer panel 15 and has members corresponding to the frame-shaped panel 19 and the upper and lower members 20 and 21, respectively, although not shown in detail. A center pillar inner panel 23 corresponding to the center pillar outer panel 22 is provided.

  In the above case, what is normally called a roof side rail is formed in the vehicle body 2 by the upper member 20 of the frame-shaped panel 19 in the side outer panel 15 and the corresponding member of the side inner panel 16. Moreover, what is normally called a rocker is formed in the vehicle body 2 by the lower member 21 of the frame-shaped panel 19 in the side outer panel 15 and the corresponding member of the side inner panel 16.

  The front and rear end edges of the center pillar outer and center pillar inner panels 22 and 23 are overlapped and joined by spot welding S, whereby a center pillar is formed. Before the side outer panel 15 is formed so as to be surrounded by the frame-shaped panel 19 and the center pillar outer panel 22, the rear space is the rear door openings 27 and 28 before the inside and outside of the vehicle compartment 4 are communicated.

  The center pillar outer panel 22 is formed separately from the frame-shaped panel 19, and the upper and lower edge portions of the center pillar outer panel 22 are lasers with respect to the middle portions of the lower member and the frame-shaped panel 19. Butt-bonded by welding W. In this case, after the frame-shaped panel 19 and the center pillar outer panel 22 are individually press-formed into a predetermined shape, these 19 and 22 may be laser-welded W as described above. The material panels 19 and the center pillar outer panel 22 may be preliminarily formed by laser welding W to form an integrated panel, which is then pressed to form the side outer panel 15.

  The thickness and strength of the center pillar outer panel 22 in the side outer panel 15 are made larger than those of the frame-shaped panel 19. Specifically, the frame-shaped panel 19 is a high-tensile steel plate having a thickness of t1 and a tensile strength of T1, while the center pillar outer panel 22 has a thickness of t2 and a tensile strength. Is made into a super high strength steel plate of T2 by die quenching, and t1 <t2 and T1 <T2. Further, in each section of the side outer panel 15 in the vertical direction, the length dimension of the center pillar outer panel 22 in the front-rear direction of the vehicle body 2 is suppressed within a predetermined dimension, while the outer width dimension in the width direction of the vehicle body 2 is The section coefficient of the center pillar outer panel 22 with respect to the neutral shaft extending in the front-rear direction of the vehicle body 2 may be increased by making it larger than that of the frame-shaped panel 19.

  Here, the die quenching process means that when the center pillar outer panel 22 of the side outer panel 15 is press-formed, the material panel of the center pillar outer panel 22 is once heated, and the heated material panel is pressed with a mold. At the same time as forming, this is a known method of cooling by contact with the mold and quenching. In this construction method, when an oxide film is formed on the processed product surface, it can be removed by shot peening or the like.

  As described above, by increasing the plate thickness, strength, and section modulus of the center pillar outer panel 22, the center of the side outer panel 15 from the traveling surface 8 through the front and rear wheels 6 and 7 when the vehicle 1 is traveling. The rigidity of the center pillar outer panel 22 is sufficiently improved with respect to the impact force applied to the pillar outer panel 22 and the external force F applied to the center pillar outer panel 22 of the side outer panel 15 from the outside of the vehicle body 2.

  The center pillar outer panel 22 may be press-formed integrally with the frame-shaped panel 19. In this case, only the portion corresponding to the center pillar outer panel 22 among the panel material of the side outer panel 15 may be die-quenched to improve the strength thereof, and the center pillar outer panel 22 The section modulus of the corresponding part may be further improved.

  According to the above configuration, the strength of the center pillar outer panel 22 is made larger than that of the frame-shaped panel 19.

  Here, as described above, at least the frame-shaped panel 19 of the side outer panel 15 is integrally formed, so that the side outer panel 15 can be easily formed.

  On the other hand, when the vehicle 1 is traveling, when an impact force is applied from the traveling surface 8 to the side outer panel 15 of the vehicle body 2 via the front and rear wheels 6, 7, as described in detail in the prior art, the side outer panel 15 A large external force is applied to the center pillar outer panel 22 which is provided on the frame-shaped panel 19 in the middle of each of the lower members 20 and 21 and constitutes the center portion of the side outer panel 15 in the surface direction. 22 may bend and deform elastically and greatly in the width direction of the vehicle body 2 which is the thickness direction.

  In addition, at least a part of the front and rear end portions of the frame-shaped panel 19 of the side outer panel 15 are disposed above the front and rear wheels 6 and 7 in a side view of the vehicle body 2 (FIG. 1). For this reason, the frame-shaped panel 19 tends to be long in the front-rear direction of the vehicle body 2 because the frame-shaped panel 19 is formed so as to straddle the front and rear wheels 6, 7. As a result, the center pillar outer panel 22 may be more elastically bent and deformed in the thickness direction due to the impact force when the vehicle 1 travels.

  However, according to the above configuration, since the strength of the center pillar outer panel 22 is increased, it is possible to easily improve the rigidity of the center pillar outer panel 22, thereby configuring the center portion in the surface direction of the side outer panel 15. It is more reliably prevented that the center pillar outer panel 22 is easily bent and deformed by the impact force. Therefore, it is possible to more reliably prevent the side outer panel 15 from being deformed by twisting or the like due to an impact force during traveling of the vehicle 1, and as a result, the operability and riding comfort of the vehicle 1 are maintained well.

  When an object collides (side impacts) with the side surface of the vehicle body 2, the impact force, which is the external force F, is firmly supported by the center pillar outer panel 22 having high rigidity as described above. It is more reliably prevented that the pillar outer panel 22 is greatly deformed inside the vehicle body 2. This is extremely useful for protecting passengers inside the vehicle body 2 corresponding to the front, rear front and rear door openings 27 and 28 of the center pillar outer panel 22.

  Further, since the strength of the center pillar outer panel 22 is increased as described above, the rigidity of the center pillar outer panel 22 can be improved while suppressing the cross-sectional area of each part in the longitudinal direction of the center pillar outer panel 22 from being increased. Therefore, even when the rigidity of the center pillar outer panel 22 is improved as described above, the front and rear door openings 27 and 28 are prevented from being narrowed by the center pillar outer panel 22, and the center pillar outer panel 22 is prevented from passing through the door openings 27 and 28. It is possible to smoothly get in and out of the passenger compartment 4.

  The various effects can be achieved by integrally forming the frame-shaped panel 19 of the side outer panel 15 and by making the strength of the center pillar outer panel 22 larger than that of the frame-shaped panel 19. . Therefore, according to the above configuration, the roof side rail reinforcing panel 31 provided for reinforcing the roof side rail and the center pillar reinforcing panel 32 provided for reinforcing the center pillar are not required. Accordingly, the configuration of the vehicle body 2 can be made simpler and lighter, and the productivity can be improved.

  Further, as described above, the center pillar outer panel 22 is formed separately from the frame-shaped panel 19.

  Therefore, the center pillar outer panel 22 can freely set various conditions such as the plate thickness without being affected by the plate thickness and material of the frame-shaped panel 19. Therefore, the center pillar outer panel 22 has a greater degree of freedom in setting various conditions such as the shape of the center pillar outer panel 22, thereby obtaining a more desired side outer panel 15 in terms of strength and appearance. Can do.

  Further, as described above, the center pillar outer panel 22 is formed integrally with the frame-shaped panel 19.

  For this reason, compared with forming the frame-shaped panel 19 and the center pillar outer panel 22 in the side outer panel 15 separately and assembling them, the side outer panel 15 can be formed more easily.

  In addition, in order to improve the rigidity of the frame-shaped panel 19 and the center pillar outer panel 22 of the side outer panel 15, a normal quenching process is applied to these to improve the strength, the plate thickness is increased, or the strength is increased. A large high strength steel plate may be used. The frame-shaped panel 19 may be die-quenched together with the center pillar outer panel 22. Further, the frame-shaped panel 19 and the center pillar outer panel 22 of the side outer panel 15 are made of a metal material such as an aluminum alloy, a carbon fiber (carbon) material, or a resin made by injection molding or reinforced with fibers. Or a combination of these.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body 3 Body frame 4 Car body 5 Car body 6 Wheel 7 Wheel 8 Running surface 15 Side outer panel 19 Frame-shaped panel 20 Upper member 21 Lower member 22 Center pillar outer panel 23 Center pillar inner panel 27 Front door opening 28 Rear door opening F External force S Spot welding W Laser welding

Claims (2)

A side outer panel that forms the outer surface of the vehicle body and is supported on the running surface by the front and rear wheels of the front and rear wheels, and this side outer panel forms an outer edge in the surface direction and is integrated. A frame-shaped panel formed on the frame-shaped panel, a center-pillar outer panel that is installed on the frame-shaped panel in the front-rear direction of the vehicle body of each of the upper and lower members, and connects the mid-portions to each other. In a vehicle body side structure having a front door and a rear door opening formed so as to be surrounded by a pillar outer panel,
The frame-shaped panel is integrally pressed from one sheet metal material,
The center pillar outer panel is formed separately from the frame-shaped panel ,
A vehicle body side structure, characterized in that the strength of the center pillar outer panel is made larger than that of the frame-shaped panel by using an ultra-high strength steel plate for the center pillar outer panel without using a reinforcing member. . A side outer panel that forms the outer surface of the vehicle body and is supported on the running surface by the front and rear wheels of the front and rear wheels, and this side outer panel forms an outer edge in the surface direction and is integrated. A frame-shaped panel formed on the frame-shaped panel, a center-pillar outer panel that is installed on the frame-shaped panel in the front-rear direction of the vehicle body of each of the upper and lower members, and connects the mid-portions to each other. In a vehicle body side structure having a front door and a rear door opening formed so as to be surrounded by a pillar outer panel,
The frame-shaped panel and the center pillar outer panel are integrally pressed from a single sheet metal material,
The vehicle body side of the vehicle is characterized in that only the center pillar outer panel is hardened to have high strength, so that the strength of the center pillar outer panel is made larger than that of the frame-shaped panel without using a reinforcing member. Part structure.

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