JP6933079B2 - Body corner structure - Google Patents

Description

The present invention relates to a vehicle body corner structure.

Generally, in a vehicle such as a hatchback type, the vehicle body may be formed in a box shape and may have corners where three surfaces intersect. For example, at the rear end and upper part of the vehicle body, a cross member extending in the vehicle width direction, an upper end portion of the side body (a portion extending in the traveling direction), and an extension provided at the rear end of the side body (a portion extending in the vertical direction). A corner portion is formed by a plate-shaped portion of each of the three members. Further, a roof panel is provided so as to cover the upper end portion of the side body and the cross member from above.

Conventionally, a vehicle body structure in which each member is joined by welding at such a corner portion has been proposed (see, for example, Patent Document 1). In the vehicle body structure described in Patent Document 1, the rear roof rail extending in the vehicle width direction and the rear pillar outer extending in the vertical direction are joined, and the roof panel and each member are connected via an extension. ..

Japanese Unexamined Patent Publication No. 2016-88447

In the vehicle body structure described in Patent Document 1, the strength of the corner portion is improved by welding each member at an appropriate position. However, the corner portion in the vehicle body structure is a portion that is easily deformed by an external force due to vibration during traveling, and it is difficult to sufficiently suppress the deformation only by devising the welding position. Due to the deformation of the corners in this way, there is a possibility that the sealing material provided between the members may be cracked or peeled off. Further, the vehicle body may have corners formed in addition to the rear end and the upper portion, and it has been desired to suppress deformation as in the rear end and the upper portion.

An object of the present invention is to provide a vehicle body corner structure capable of suppressing deformation.

The vehicle body corner structure of the present invention is a vehicle body corner structure in which a corner portion in which three surfaces intersect is formed by joining the first plate portion, the second plate portion, and the third plate portion. The first plate portion and the second plate portion form an L-shaped corner portion that is convex to the outside of the vehicle by bending one end portion along the other, and the third plate portion is the end thereof. A first overlapping portion that is overlapped on the outside of the vehicle of the first plate portion, a second overlapping portion that is overlapped on the outside of the vehicle of the second plate portion, and the first overlapping portion and the second overlapping portion. It has a notch formed between them, and the L-shaped corner portion passes through the notch from the inside of the vehicle to the outside of the vehicle, and of the first plate portion and the second plate portion. A portion of the notch located on the outer side of the vehicle abuts on the bottom of the notch, the first overlapping portion is joined to at least the first plate portion, and the second overlapping portion is at least the second. It is characterized by being joined to a plate portion.

According to the vehicle body corner structure of the present invention, deformation can be suppressed.

It is a perspective view which shows the car body corner structure which concerns on embodiment of this invention. It is a side view which shows the main part of the vehicle body corner structure in an enlarged manner. It is a perspective view which shows the state which the panel member was removed in the said body corner structure. It is a side view which shows the appearance which the car body corner structure was seen from the vehicle interior side. It is a side view which shows the appearance as seen from the vehicle interior side while removing the reinforcement in the body corner structure. It is sectional drawing which follows the X1-X1 line of FIG. It is sectional drawing along the X2-X2 line of FIG.

The invention according to claim 1 is a vehicle body corner structure in which a corner portion where three surfaces intersect is formed by joining the first plate portion, the second plate portion, and the third plate portion. The first plate portion and the second plate portion form an L-shaped corner portion that is convex to the outside of the vehicle by bending one end portion along the other, and the third plate portion is formed at the end portion. , The cut formed between the first overlapping portion overlapped on the outside of the vehicle of the first plate portion, the second overlapping portion overlapped on the outside of the vehicle of the second plate portion, and the first overlapping portion and the second overlapping portion. It has a notch, and the L-shaped corner passes through the notch from the inside of the vehicle toward the outside of the vehicle, and is located on the outside of the notch of the first plate and the second plate. The portion abuts on the bottom of the notch, the first overlapping portion is joined to at least the first plate portion, and the second overlapping portion is joined to at least the second plate portion.

According to the present invention, the L-shaped corner portion composed of the first plate portion and the second plate portion passes through the notch portion of the third plate portion from the inside of the vehicle to the outside of the vehicle. , The L-shaped corner portion is sandwiched between the first overlapping portion and the second overlapping portion. Here, by joining the first overlapping portion to at least the first plate portion and joining the second overlapping portion to at least the second plate portion, the movement of the L-shaped corner portion (particularly, the L-shaped corner portion is sandwiched). Movement in the direction of movement) is suppressed. Further, the L-shaped corner portion comes into contact with the bottom portion of the notch portion, so that the L-shaped corner portion is restricted from approaching the third plate portion. By suppressing the movement of the L-shaped corner portion in this way, it is possible to suppress the deformation of the corner portion where the three surfaces intersect.

Hereinafter, examples of the present invention will be described with reference to the drawings. As shown in FIG. 1, the vehicle body corner structure 10 of this embodiment is located at the rear end and the upper portion of the entire vehicle body. The vehicle body corner structure 10 is formed on both sides in the vehicle width direction, but only one side (right side) will be described below. In this embodiment, the traveling direction (front-rear direction) of the vehicle is the X direction, the vehicle width direction is the Y direction, and the vertical direction is the Z direction. Further, in the Y direction, the center side of the vehicle is defined as "inside" and the outside of the vehicle is defined as "outside".

As shown in FIGS. 2 and 3, the vehicle body corner structure 10 intersects three surfaces by joining the rear pillar 2, the side body outer panel 3, the roof back inner extension 4, and the roof panel 5. The corners are formed. Each of these members is formed by subjecting the sheet metal to bending, punching, or the like.

The rear pillar 2 is a member extending along the Z direction at the rear end portion of the side body outer panel 3. A side body outer extension 21 is provided at the upper end of the rear pillar 2 as a part thereof. As shown in FIG. 4, a rear pillar inner force 6 is provided inside the rear pillar 2.

The side body outer extension 21 includes a main body plate portion 211 as a first plate portion along the YZ plane, a flange portion 212 continuous with the outer edge of the main body plate portion 211 in the Y direction and extending along the ZX plane, and a main body. It has a front extension portion 213 that is continuous with the upper end edge of the plate portion 211 and extends toward the front side in the X direction.

The rear pillar inner force 6 is a reinforcing member of the rear pillar 2, and both end edges extending along the Z direction are joined to the rear pillar 2 to form a tubular member together with the rear pillar 2. An opening 61 is formed in the rear pillar inner force 6, and a welding gun is inserted through the rear pillar inner force 6.

The side body outer panel 3 is a member extending along the ZX plane and forms the side surface shape of the vehicle body. The upper end portion 31 of the side body outer panel 3 has an upper surface portion 311 extending along the X direction and extending along the XY plane, and an inner surface portion 312 extending along the ZX plane and facing inward in the Y direction. .. The inner surface portion 312 has a first region 312A on which the flange portion 212 of the side body outer extension 21 is overlapped, and a second region 312B in which the inner extension portion 313 is formed in front of the first region 312A. The inner extension portion 313 is formed in a flange shape by bending a part of the lower end edge of the inner surface portion 312, extends along the XY plane below the upper surface portion 311 and functions as a second plate portion. ..

As shown in FIGS. 4 and 5, the inside of the side body outer panel 3 is reinforced by providing a quarter wind extension 7. The quarter wind extension 7 has the X direction as the longitudinal direction and extends along the ZX plane.

The roof back inner extension 4 is a member that is arranged at the rear end of the roof panel 5 and is arranged below the end of the cross member that extends in the Y direction, and is a third plate that extends along the XY plane. Functions as a department. The roof back inner extension 4 has a first overlapping portion 41 extending along the YZ plane and a second overlapping portion extending along the XY plane protruding from the outer end portion in the Y direction, and the first overlapping portion 41 and the roof back inner extension 4. A notch 43 is formed between the second overlapping portion 42 and the second overlapping portion 42.

The cutout portion 43 is above the upper end edge (edge extending along the Y direction) 411 of the first overlapping portion 41 and the rear end edge (end edge extending along the Y direction) 421 of the second overlapping portion 42. It is composed of a bottom portion 431 that is inclined downward along the X direction in the visual direction and toward the rear. That is, the bottom portion 431 is an edge facing outward in the Y direction between the first overlapping portion 41 and the second overlapping portion 42.

The roof panel 5 functions as a panel member, and is a panel main body 51 that covers the inner extension portion 313 as the second plate portion and the roof back inner extension 4 from the outside of the vehicle along the XY plane, and the panel main body 51. It has a bent portion 52 in which the rear end edge is bent downward to cover a part of the main body plate portion 211 as the first plate portion from the outside of the vehicle.

Next, the positional relationship of each member will be described. First, the flange portion 212 of the side body outer extension 21 is overlapped inward in the Y direction with respect to the inner surface portion 312 of the upper end portion 31 of the side body outer panel 3. Further, the side body outer extension 21 has a front extension portion 213 bent along the inner extension portion 313, and the inner extension portion 313 is overlapped on the upper surface (outside of the vehicle) of the front extension portion 213. As a result, the main body plate portion 211 extending along the Z direction and the front extension portion 213 and the inner extension portion 313 extending along the X direction form a convex shape on the outside of the vehicle and are L-shaped when viewed from the Y direction. The L-shaped corner portion 20 is formed. It should be noted that the two members forming the L-shaped corner portion may be bent so as to be along the other side.

Further, the first overlapping portion 41 of the roof back inner extension 4 is overlapped on the rear surface (outside of the vehicle) of the main body plate portion 211, and the second overlapping portion 42 is overlapped on the upper surface (outside of the vehicle) of the inner extension portion 313. As a result, the L-shaped corner portion 20 is positioned at the notch portion 43, and the L-shaped corner portion 20 passes through the notch portion 43 from the inside of the vehicle to the outside of the vehicle. That is, a part of the main body plate portion 211 and the inner extension portion 313 is hidden by the overlapping portions 41 and 42 when viewed from above or rearward, and the L-shaped corner portion 20 is exposed in the notch portion 43.

Further, the L-shaped corner portion 20 comes into contact with the bottom portion 431 of the notch portion 43. That is, the inner extension portion 313 and the front extension portion 213 come into contact with the boundary portion of the bottom portion 431 with the rear end edge 421 of the second overlapping portion 42 from the outside in the Y direction, and the first overlapping portion 41 of the bottom portion 431 The main body plate portion 211 comes into contact with the boundary portion with the upper end edge 411 from the outside in the Y direction. When the L-shaped corner portion 20 and the notch portion 43 are viewed from the inside in the Y direction, a triangular opening is formed by the inner extension portion 313 and the front extension portion 213, the main body plate portion 211, and the bottom portion 431. ing. Further, when the notch portion 43 and the L-shaped corner portion 20 are viewed from the lower side, as shown in FIG. 5, the front extension portion 213 can be seen through the notch portion 43.

Further, the panel body 51 of the roof panel 5 is overlapped on the upper surface (outside of the vehicle) of the second overlapping portion 42 and the upper surface (outside of the vehicle) of the inner extension portion 313 where the second overlapping portion 42 cannot be overlapped. .. Further, the bent portion 52 of the roof panel 5 is placed on the rear surface (outside of the vehicle) of the first overlapping portion 41 and on the upper surface (the side of the vehicle) of the main body plate portion 211 where the first overlapping portion 41 cannot be overlapped. Can be stacked.

By overlapping the members in this way, as shown in FIG. 6, the first three pieces of the panel main body 51, the second overlapping portion 42, and the inner extension portion 313 are overlapped in order from above in the vehicle body corner structure 10. The overlapping area A1, the panel body 51, the second overlapping portion 42, the inner extension portion 313, and the front extension portion 213 are overlapped in order from the top, and the second overlapping region A2, the panel body 51, the inner extension portion 313, and the front extension The third overlapping region A3 in which the three pieces of the portion 213 are overlapped in order from above, and the fourth overlapping region A4 in which the three pieces of the bent portion 52, the first overlapping portion 41, and the main body plate portion 211 are overlapped in order from the rear are It is formed.

In each of the overlapping regions A1 to A4 as described above, the respective members are joined by welding appropriate portions. An example of the welded portion SP is shown in FIG. In this way, the panel main body 51, the second overlapping portion 42, and the inner extension portion 313 are joined together, and the bent portion 52, the first overlapping portion 41, and the main body plate portion 211 are joined together. Further, in the cutout portion 43, the panel main body 51 and the inner extension portion 313 and the front extension portion 213 forming the L-shaped corner portion 20 are joined to each other.

In manufacturing, the number of overlapping sheets that can be welded may be limited. For example, when the upper limit is the simultaneous welding of three sheets, in the second overlapping region A2 where four sheets overlap, three sheets may be welded from above, or three sheets may be welded from below. Both welding of three pieces from the top and welding of three pieces from the bottom may be performed.

Further, the above welding may be performed before or after the attachment of the rear pillar inner force 6 to the rear pillar 2. When welding after mounting, a welding gun may be inserted through an appropriate opening of the rear pillar inner force 6. Here, as shown in FIG. 7, the opening 61 is formed in a portion of the rear pillar inner force 6 that is inclined along the bottom portion 431 of the notch portion 43, and is formed for welding as shown by the alternate long and short dash line. The gun can be inserted, and the L-shaped corner portion 20 can be easily welded.

In the vehicle body corner structure 10, seal members are provided in the first to third sealing portions S1 to S3 between the members as described below to prevent water outside the vehicle from passing between the members and heading into the vehicle. Will be done. The first sealing portion S1 is a boundary between the inner surface portion 312 and the inner surface portion 313 and is a portion of the inner extension portion 313 along the outer side of the second overlapping portion 42, and is mainly composed of the panel main body 51 and the inner surface portion 312. The purpose is to stop the water between. The second sealing portion S2 is continuous with the rear end of the first sealing portion S1 and is a portion of the inner surface portion 312 along the outside of the flange portion 212, and is mainly between the upper end portion 31 and the side body outer extension 21. The purpose is to stop the water. The third sealing portion S3 is continuous with the rear end of the first sealing portion S1 and is a portion of the main body plate portion 211 along the outside of the first overlapping portion 41, and is mainly a bent portion 52 and a side body outer extension 21. The purpose is to stop the water between. Further, the first sealing portion S1 and the third sealing portion S3 are along the outer edge of the roof panel 5.

According to this embodiment, there are the following effects. That is, the L-shaped corner portion 20 composed of the main body plate portion 211 and the inner extension portion 313 passes through the notch portion 43 of the roofback inner extension 4 from the inside of the vehicle to the outside of the vehicle, thereby forming an L-shape. The corner portion 20 is sandwiched between the first overlapping portion 41 and the second overlapping portion 42. Here, the first overlapping portion 41 is joined to the main body plate portion 211, and the second overlapping portion 42 is joined to the inner extension portion 313 to move the L-shaped corner portion 20 (particularly, the L-shaped corner portion 20). Movement in the direction in which is sandwiched) is suppressed. Further, when the L-shaped corner portion 20 comes into contact with the bottom portion 431 of the notch portion 43, the L-shaped corner portion 20 is restricted from approaching the roof back inner extension 4. By suppressing the movement of the L-shaped corner portion 20 in this way, it is possible to suppress the deformation of the corner portion where the three surfaces intersect.

By suppressing the deformation of the corners where the three surfaces intersect in this way, it is possible to suppress cracking and peeling of the seal member provided between each member and the roof panel 5.

Further, the panel main body 51, the second overlapping portion 42, and the inner extension portion 313 are joined to each other, and the bent portion 52, the first overlapping portion 41, and the main body plate portion 211 are joined to form L. The roof panel 5 is joined to each member at a position sandwiching the character corner portion 20. Further, the roof panel 5 is joined to the L-shaped corner portion 20. As a result, stress concentration on the L-shaped corner portion 20 can be suppressed, and deformation of the corner portion to which the three members are joined can be suppressed. By suppressing the deformation in this way, a gap is less likely to occur between the roof panel 5 and other members, and the sealing property can be improved.

The present invention is not limited to the above-described embodiment, but includes other configurations and the like that can achieve the object of the present invention, and the following modifications and the like are also included in the present invention.

For example, in the above embodiment, the panel main body 51, the second overlapping portion 42, and the inner extension portion 313 are joined to each other, and the bent portion 52, the first overlapping portion 41, and the main body plate portion 211 are joined to each other. However, it is not limited to such a joint. That is, at least two sheets of the second overlapping portion 42 and the inner extension portion 313 may be joined, and at least two sheets of the first overlapping portion 41 and the main body plate portion 211 may be joined at different positions. The roof panel 5 and the second overlapping portion 42 may be joined, and the bent portion 52 and the first overlapping portion 41 may be joined. Further, when the roof panel 5 is joined to each member at a position sandwiching the L-shaped corner portion 20 and sufficient strength is obtained, the roof panel 5 is joined to the L-shaped corner portion 20 at the notch 43. It does not have to be.

Further, in the above embodiment, the L-shaped square portion 20 is formed by the main body plate portion 211 along the ZX plane and the inner extension portion 313 along the XY plane, and the roof back inner along the YZ plane. It is assumed that the notch 43 is formed in the extension 4, but an L-shaped corner portion is formed by a member along the YZ plane and a member extending along the ZX plane or the XY plane, and an L-shape is formed. A notch may be formed in a member that does not form a rectangular portion.

Further, in the above embodiment, the vehicle body corner structure 10 having the L-shaped corner portion 20 and the notch portion 43 is located at the rear end and the upper portion of the entire vehicle. It may be provided at an appropriate position according to the shape of the vehicle body, may be provided at the front end or near the front end of the entire vehicle, or may be provided at the lower portion.

In addition, the best configuration, method, and the like for carrying out the present invention are disclosed in the above description, but the present invention is not limited thereto. That is, the present invention is mainly illustrated and described with respect to specific embodiments, but without departing from the scope of the technical idea and purpose of the present invention, the shape with respect to the above-described embodiments. , Materials, quantities, and other detailed configurations can be modified by those skilled in the art. Therefore, the description that limits the shape, material, etc. disclosed above is merely an example for facilitating the understanding of the present invention, and does not limit the present invention. Therefore, those shapes, materials, etc. The description by the name of the member which removes a part or all of the limitation such as is included in the present invention.

10 Body corner structure 20 L-shaped corner 211 Main body plate (first plate)
313 Inner extension (2nd plate)
4 Roofback inner extension (3rd plate)
41 1st overlapping part 42 2nd overlapping part 43 Notch 431 Bottom 5 Roof panel (panel member)
51 Panel body 52 Bent part

Claims (2)

It is a vehicle body corner structure in which a corner portion where three surfaces intersect is formed by joining the first plate portion, the second plate portion, and the third plate portion.
The first plate portion and the second plate portion form an L-shaped corner portion that is convex to the outside of the vehicle by bending one end portion along the other.
The third plate portion has a first overlapping portion that is overlapped on the outer side of the vehicle of the first plate portion, a second overlapping portion that is overlapped on the outer side of the vehicle of the second plate portion, and the first overlapping portion. It has a notch formed between the portion and the second overlapping portion, and has.
The L-shaped corner portion passes through the notch from the inside of the vehicle to the outside of the vehicle, and the portion of the first plate portion and the second plate portion located on the outside of the notch portion is formed. In contact with the bottom of the notch,
A vehicle body corner structure characterized in that the first overlapping portion is joined to at least the first plate portion, and the second overlapping portion is joined to at least the second plate portion. A panel member having a panel main body that covers the second plate portion from the outside of the vehicle and a bent portion that is bent at the edge of the panel main body to cover a part of the first plate portion from the outside of the vehicle is further provided.
The panel body is superposed on the second overlapping portion, the bent portion is superposed on the first overlapping portion, and the panel body is superposed on the L-shaped corner portion.
At least three sheets of the first plate portion, the first overlapping portion, and the bent portion are joined, and at least three sheets of the second plate portion, the second overlapping portion, and the panel main body are joined, and the L The vehicle body corner structure according to claim 1, wherein the character corner portion and the panel main body are joined.

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