JP2012025256A - Vehicle roof structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a vehicle roof structure, which can maintain a joining state between a roof panel and a vehicle body framing member in a good state, even if a deformation of the roof panel is caused by thermal expansion.SOLUTION: The vehicle roof structure includes the roof panel 24 made of resin and having a body 24A and an end 24B in a vehicle width direction. The end 24B in a vehicle width direction has a cross section formed in a T-shape, wherein an adhesive agent application part 24B1 is bonded to a vertical wall 20 of a roof side rail 12 by a bonding part 26. The height configured by the body 24A and the bonding part 26 is controlled so that a line P1 of action of the extension force F exerted during the thermal expansion of the body 24A is crossed at a middle of the bonding part 26 in a height direction.

Description

  The present invention relates to a vehicle roof structure in which a roof panel is made of resin, aluminum or aluminum alloy.

  Patent Document 1 below discloses a structure in which an end portion of a resin roof panel is joined to a vehicle body skeleton using an adhesive.

Japanese Patent No. 3914525

  However, in the case of the above prior art, since the cross-sectional shape of the end portion of the roof panel is formed in an L shape, and the substantially entire surface of the end portion is joined to the panel on the vehicle body side with an adhesive, When the roof panel expands due to heat, a compressive force acts on the root portion of the L-shaped cross section, and a tensile force acts on the tip portion of the L-shaped cross section. For this reason, when the roof panel extends due to thermal expansion, deformation due to shear and tension occurs in a portion corresponding to the tip portion of the L-shaped cross section in the bonded portion, which causes peeling of the bonded portion.

  In view of the above facts, an object of the present invention is to obtain a vehicle roof structure that can maintain a good bonding state between a roof panel and a vehicle body skeleton member even if the roof panel is deformed by thermal expansion.

  The roof structure for a vehicle according to the first aspect of the present invention includes a roof panel made of resin, aluminum or aluminum alloy, a steel plate, and a vehicle along a vehicle width direction end of the roof panel. A vehicle body-side component extending in the front-rear direction, and an adhesive portion that joins an end of the roof panel in the vehicle width direction to the vehicle body-side component, and when the main body of the roof panel is thermally expanded The shape of the end portion of the roof panel in the vehicle width direction is set so that the stretching force acts as a compressive force on the adhesive portion from the upper edge to the lower edge.

  A roof structure for a vehicle according to a second aspect of the present invention is the roof structure for a vehicle according to the first aspect, wherein the extension force of the roof panel acts along the main body of the roof panel, and further the extension force of the roof panel. The height relationship between the main body portion of the roof panel and the bonding portion is set so that the line of action intersects at the intermediate portion in the height direction of the bonding portion.

  A vehicle roof structure according to a third aspect of the present invention is the vehicle roof structure according to the first or second aspect, wherein the vehicle body side component member is positioned at a position facing an end of the roof panel in the vehicle width direction. An adhesive application portion that includes a vertical wall extending in the vertical direction, and an end portion of the roof panel in the vehicle width direction is arranged in parallel to the vertical wall and the adhesive of the adhesive portion is applied And a connecting portion that is formed continuously with the main body portion of the roof panel and is connected to the adhesive application portion at an intermediate position excluding the upper edge portion and the lower edge portion.

  A vehicle roof structure according to a fourth aspect of the present invention is the vehicle roof structure according to any one of the first to third aspects, wherein the roof panel is arranged along the vehicle width direction. The longitudinal sectional shape of the end of the roof panel in the vehicle width direction when cut is a T-shape.

  A roof structure for a vehicle according to a fifth aspect of the present invention is the vehicle roof structure according to any one of the first to fourth aspects, wherein the roof panel has an end portion in the vehicle width direction. A flange that projects outward from the upper end of the vehicle width direction end to the vehicle width direction is formed.

  According to the first aspect of the present invention, since the vehicle body side component is made of a steel plate and the roof panel is made of resin or aluminum or aluminum alloy, each member has a different coefficient of thermal expansion. For this reason, for example, if the roof panel is made of resin, the main body of the roof panel thermally expands when the vehicle is placed in a high temperature environment, and the roof panel moves the vehicle body side component member outward in the vehicle width direction accordingly. A pressing force (extension force) is generated.

  Here, in the present invention, the shape of the end of the roof panel in the vehicle width direction is such that the elongation force when the roof panel is thermally expanded acts as a compressive force on the adhesive portion from the upper edge to the lower edge. Therefore, even if the elongation force is generated, a compressive force acts on the bonded portion from the upper edge to the lower edge. For this reason, a tensile force or a shearing force acts on the upper edge or the lower edge of the bonded portion, and the upper edge or the lower edge of the bonded portion does not crack and cause peeling.

  According to the second aspect of the present invention, the roof panel includes the main body portion, and the elongation force acts along the main body portion.

  Here, in the present invention, since the height relationship between the main body portion of the roof panel and the adhesive portion is set so that the line of action of the elongation force of the roof panel intersects at the intermediate portion in the height direction of the adhesive portion, the adhesive portion Elongation force acts as a compression force on the whole. That is, a compressive force is applied only to the upper edge or the lower edge of the bonded portion, and as a result, it is possible to effectively prevent a crack that becomes a starting point of peeling from entering the lower edge or the upper edge of the bonded portion.

  According to the third aspect of the present invention, an adhesive application portion to which an adhesive is applied is formed at the end of the roof panel in the vehicle width direction so as to be arranged in parallel to the vertical wall of the vehicle body side component member. Since the connection part formed continuously to the main body part of the roof panel is connected at the middle part excluding the upper edge part and the lower edge part of the adhesive application part, the connection part is removed from the main body part. The elongation force acting on the adhesive application part via the same acts on the entire area of the adhesive application part. Therefore, the bonded portion can receive a compressive force as a whole.

  According to the fourth aspect of the present invention, since the longitudinal cross-sectional shape of the end portion of the roof panel in the vehicle width direction is a T-shape, the surface rigidity of the roof panel is increased. For this reason, it is possible to prevent the design surface of the roof panel from being lowered from the design position due to the weight of the roof panel, thermal expansion, or the like, or to an extent that it cannot be seen visually. This also prevents or suppresses the distance between the head of the passenger sitting on the vehicle seat and the lower surface of the roof (the lower surface of the roof head lining) from shrinking. Therefore, it is not necessary to give the passenger seated in the vehicle seat a feeling of pressure due to a feeling that the ceiling is low.

  According to the fifth aspect of the present invention, since the eaves portion that protrudes outward from the upper end portion of the end portion of the roof panel in the vehicle width direction is formed in the vehicle width direction, the direct sunlight is within the range where the eave portion is extended. Is blocked by the buttocks. That is, in the range where the collar portion protrudes, direct sunlight is not directly applied to the bonded portion.

  As described above, the vehicle roof structure according to the first aspect of the present invention can maintain the bonding state between the roof panel and the vehicle body skeleton member well even if the roof panel is deformed by thermal expansion. Has an excellent effect.

  The roof structure for a vehicle according to the second aspect of the present invention has an excellent effect of compressing the entire bonding portion and effectively preventing peeling of the bonding portion.

  The roof structure for a vehicle according to the third aspect of the present invention has an excellent effect that a compressive force can be applied to the entire adhesive portion with a simple configuration in which an adhesive application portion is provided on the main body portion. Have.

  According to the fourth aspect of the present invention, the roof structure for a vehicle according to the present invention can maintain the roof panel and thus the appearance quality of the vehicle well, and can maintain the comfort of the passenger seated on the vehicle seat. Has an excellent effect.

  The roof structure for a vehicle according to the fifth aspect of the present invention has an excellent effect of protecting the adhesive portion from direct sunlight and suppressing the deterioration of the adhesive portion.

1 is an enlarged longitudinal sectional view of a state in which a roof side rail portion of a vehicle is cut along a vehicle width direction according to the first embodiment when viewed from the vehicle rear side. It is an enlarged longitudinal cross-sectional view corresponding to FIG. 1 which shows the modification of 1st Embodiment. FIG. 5 is an enlarged longitudinal sectional view corresponding to FIG. 1 showing a main part of a vehicle roof structure according to a second embodiment. It is a perspective view which expands and shows the principal part of the roof structure for vehicles which concerns on 3rd Embodiment. It is a perspective view corresponding to FIG. 4 which shows the modification of 3rd Embodiment. FIG. 3 is an enlarged longitudinal sectional view corresponding to FIG. 2 showing a vehicle roof structure according to a reference example.

[First Embodiment]
Hereinafter, a first embodiment of a vehicle roof structure according to the present invention will be described with reference to FIG. In addition, arrow UP shown by FIG. 1 has shown the vehicle upper side, and arrow IN has shown the vehicle width direction inner side.

  FIG. 1 shows an enlarged longitudinal sectional view of a state in which the roof side rail portion of the vehicle is cut along the vehicle width direction as viewed from the vehicle rear side. As shown in this figure, on both sides of the roof 10 of the vehicle, a pair of left and right roof side rail portions 12 as “vehicle body side structural members” are disposed along the vehicle front-rear direction. The roof side rail portion 12 includes a rail inner panel 14 disposed on the vehicle interior side, a rail outer reinforcement 16 that forms a closed section with the rail inner panel 14, and a side disposed on the vehicle outer side of the rail outer reinforcement 16. It consists of three panels with the outer panel 18. The rail inner panel 14, the rail outer reinforcement 16 and the side outer panel 18 are all made of a steel plate.

  The rail inner panel 14 is arranged on the innermost side of the three panels, and the main body is arranged in such a manner that both side walls are formed in a substantially U shape with the side walls slightly open and the bottom wall faces obliquely upward and outward. 14A, an inner flange portion 14B that is horizontally bent inward in the vehicle width direction from the inner end portion of the main body portion 14A, and an outer flange portion 14C that is bent obliquely downward and outward from the outer end portion of the main body portion 14A. , Is composed of.

  The rail outer reinforcement 16 is disposed in the middle of the three panels, and has a main body portion 16A in which both side walls are formed in a slightly open hat shape and the bottom wall is disposed substantially parallel to the bottom wall of the main body portion 14A. And an inner flange portion 16B bent horizontally from the inner end portion of the main body portion 16A toward the vehicle width direction inside, and an outer flange portion 16C bent obliquely downward and outward from the outer end portion of the main body portion 16A. It is configured.

  The side outer panel 18 is disposed on the outermost side of the three panels, and has a main body 18A having a bulge capable of covering the main body 16A of the rail outer reinforcement 16 from the outer side of the passenger compartment, and the main body 18A. The inner flange portion 18B is bent horizontally from the inner end portion toward the vehicle width direction inside, and the outer flange portion 18C is bent obliquely downward and outward from the outer end portion of the main body portion 18A. Further, the side wall in the vehicle width direction of the main body portion 18A of the side outer panel 18 (hereinafter, this side wall is referred to as “vertical wall 20”) is disposed substantially perpendicular to the vehicle vertical direction.

  The inner flange portion 14B of the rail inner panel 14, the inner flange portion 16B of the rail outer reinforcement 16 and the inner flange portion 18B of the side outer panel 18 are overlapped and joined by spot welding. Similarly, the outer flange 14C of the rail inner panel 14, the outer flange portion 16C of the rail outer reinforcement 16, and the outer flange portion 18C of the side outer panel 18 are overlapped and joined by spot welding. Thereby, the vehicle skeleton member in which the closed cross-section part 22 extends along the vehicle front-rear direction is formed on the roof side rail part 12.

  A roof panel 24 made of a resin material such as polypropylene, fiber reinforced resin, polycarbonate, or the like is joined between the left and right roof side rail portions 12 by an adhesive portion 26, which will be described in detail below.

  The roof panel 24 includes a main body portion 24A that is formed in a gently curved shape that protrudes upward in the vehicle and covers the cabin from the vehicle upper side. Moreover, the longitudinal cross-sectional shape of the both ends 24B of the vehicle width direction of the roof panel 24 is formed in T shape.

  More specifically, the end portion 24B of the roof panel 24 in the vehicle width direction is arranged in parallel to the vertical wall 20 in the main body portion 18A of the side outer panel 18 and is applied with the adhesive of the adhesive portion 26. The application part 24B1 and a connection part 24B2 formed continuously with the main body part 24A and connected to the intermediate part in the height direction of the adhesive application part 24B1. Note that the term “parallel” as used herein includes not only the case of being completely parallel to the vertical wall 20 but also the case where the adhesive application portion 24B1 is slightly inclined with respect to the vertical wall 20 (described later). The same applies to the second and subsequent embodiments.)

  The adhesion part 26 is comprised by apply | coating a urethane type adhesive agent as an example. Further, the line of action P1 of the stretching force (lateral force) F acting on the main body portion 24A of the roof panel 24 intersects at the intermediate portion in the height direction of the application range Q of the bonding portion 26, so that the main body portion 24A of the roof panel 24 is intersected. And the height relationship between the bonding portion 26 is set. In FIG. 1, the lower edge of the adhesive portion 26 is positioned at the lower edge of the adhesive application portion 24B1, but it is not always necessary to align the lower edge, and the adhesive application portion 24B1 and the side outer panel 18 The adhesive part 26 should just be formed by apply | coating an adhesive agent between the vertical walls 20.

  To supplement the interpretation of terms, the “action line P1” of the extension force F is an action line of force that the body portion 24A of the roof panel 24 extends due to thermal expansion and pushes the adhesive portion 26 outward in the vehicle width direction. It may be regarded as the center line of the thickness of the main body 24A. In addition, the “intermediate portion in the height direction” of the bonding portion 26 does not mean only the intermediate position in the height direction of the application range Q of the bonding portion 26, but may be slightly shifted in the height direction.

(Operation and effect of this embodiment)
Next, the operation and effect of this embodiment will be described.

  Since the roof side rail portion 12 is made of steel plate and the roof panel 24 is made of resin, each member has a different coefficient of thermal expansion. For this reason, when the vehicle is placed in a high temperature environment, the main body portion 24A of the roof panel 24 is thermally expanded, and accordingly, the roof panel 24 pushes the roof side rail portion 12 outward in the vehicle width direction (extension force F). ) Occurs.

  Here, in the present embodiment, the action line P1 of the extension force F of the main body 24A of the roof panel 24 intersects at the intermediate portion in the height direction of the bonding portion 26, so that the main body 24A and the bonding portion 26 of the roof panel 24 meet each other. Since the height relationship is set, the elongation force F acts as a compressive force on the whole from the upper edge to the lower edge of the bonding portion 26. That is, a compressive force is applied only to the upper edge or the lower edge of the adhesive portion 26, and as a result, it is possible to effectively prevent a crack that becomes a starting point of peeling from entering the lower edge or the upper edge of the adhesive portion 26. As a result, according to the present embodiment, even when the roof panel 24 is deformed due to thermal expansion, the adhesion portion 26 is effectively prevented from being peeled off, and the roof panel 24 and the roof side rail portion 12 are in a good bonded state. Can be maintained.

  Further, when the adhesive portion 26 is structured so as to receive a compressive force (lateral force) as a whole, for the same reason as described above, a collision load at the time of a side collision is input to the roof side rail portion 12 via the center pillar. It is also extremely effective when In other words, in the present embodiment, when a collision load (load opposite to the extension force F) in the vehicle width direction is input to the roof side rail portion 12 via the center pillar, the vertical wall 20 applies to the bonding portion 26. A collision load inward in the vehicle width direction is input. At this time, in this embodiment, the entire adhesive portion 26 is compressed in the vehicle width direction by receiving a reaction force from the adhesive application portion 24B1 of the end portion 24B of the roof panel 24 in the vehicle width direction. There is no crack that promotes peeling at the upper edge or the lower edge. Therefore, the side collision load can be transmitted (flowed) from the roof side rail portion 12 to the roof side rail portion 12 on the opposite side via the main body portion 24A of the roof panel 24.

  In particular, an adhesive application portion 24B1 that is disposed in parallel to the vertical wall 20 of the roof side rail portion 12 and is applied with an adhesive is formed on the end portion 24B of the roof panel 24 in the vehicle width direction. The connecting portion 24B2 formed continuously with the main body portion 24A of the roof panel 24 is a midway portion excluding the upper edge portion and the lower edge portion of the adhesive application portion 24B1 (in this embodiment, the height of the adhesive application portion 24B1). Since the connection is made at the middle part in the direction), the extension force F acting on the adhesive application part 24B1 from the main body part 24A via the connection part 24B2 acts on the entire area of the adhesive application part 24B1. Therefore, the adhesive part 26 can receive a compressive force as a whole. As a result, according to the present embodiment, a compressive force can be applied to the entire adhesive portion 26 with a simple configuration in which the adhesive application portion 24B1 is provided on the main body portion 24A.

  Further, in the present embodiment, the longitudinal cross-sectional shape of the end 24B in the vehicle width direction of the roof panel 24 is T-shaped, so that the surface rigidity of the roof panel 24 is increased. For this reason, it is possible to prevent the design surface of the main body portion 24A of the roof panel 24 from being lowered from the design position due to the weight of the roof panel 24, thermal expansion, or the like, or to an extent that is not apparent. This also prevents or suppresses the distance between the head of the passenger sitting on the vehicle seat and the lower surface of the roof (the lower surface of the roof head lining lined below the roof panel 24) from being reduced. Become. Therefore, it is not necessary to give the passenger seated in the vehicle seat a feeling of pressure due to a feeling that the ceiling is low. As a result, according to this embodiment, the roof panel 24 and thus the appearance quality of the vehicle can be maintained well, and the comfort of the passenger seated on the vehicle seat can be kept good.

  In the present embodiment, the shape of the end 24B of the roof panel 24 in the vehicle width direction is a T-shape. However, the present invention is not limited to this, and as shown in FIG. 2, the vehicle is placed on the upper end of the adhesive application portion 24B1. You may provide the collar part 28 projected to the width direction outer side (the vertical wall 20 side of the side outer panel 18). According to this configuration, the direct sunlight is blocked by the flange 28 in the range where the flange 28 protrudes. That is, the direct sunlight is not directly applied to the bonding portion 26 in the range where the collar portion 28 protrudes. Therefore, the adhesion part 26 can be protected from direct sunlight, and it can suppress that the adhesion part 26 deteriorates.

[Second Embodiment]
Hereinafter, a second embodiment of the vehicle roof structure according to the present invention will be described with reference to FIG. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 3, in the vehicle roof structure according to the second embodiment, the shape of the end portion 30B in the vehicle width direction of the main body portion 30A of the roof panel 30 is a substantially inverted U shape with the vehicle lower side open. It is characterized in that it is formed.

  More specifically, the end portion 30B of the roof panel 30 in the vehicle width direction includes an inclined portion 30B1 extending obliquely upward and outward from an end portion of the main body portion 30A in the vehicle width direction, and an upper end of the inclined portion 30B1. The horizontal portion 30B2 that extends horizontally outward from the vehicle width direction and the vertical portion 30B3 that is bent downward from the outer end of the horizontal portion 30B2 toward the vehicle lower side. The vertical portion 30B3 is the same as the adhesive application portion 24B1 described in the first embodiment, and is arranged in parallel to the vertical wall 20 of the side outer panel 18 so as to apply an adhesive.

  Further, the height relationship between the main body portion 30A of the roof panel 30 and the bonding portion 26 is set so that the line of action P2 of the extension force F of the main body portion 30A of the roof panel 30 intersects at the intermediate portion in the height direction of the bonding portion 26. ing

(Action / Effect)
When the vehicle is placed in a high temperature environment and the main body portion 30A of the roof panel 30 is thermally expanded, a force (elongation force F) that the roof panel 30 pushes the roof side rail portion 12 outward in the vehicle width direction is generated accordingly.

  Here, in this embodiment, the main body 30A of the roof panel 30 and the adhesive portion 26 are arranged such that the action line P2 of the extension force F of the main body portion 30A of the roof panel 30 intersects at the intermediate portion in the height direction of the adhesive portion 26. Since the height relationship is set, the elongation force F acts as a compressive force on the whole from the upper edge to the lower edge of the bonding portion 26. Specifically, in the case of the shape of the end portion 30B in the vehicle width direction of the roof panel 30 of the present embodiment, the horizontal portion 30B2 is connected to the upper end portion of the vertical portion 30B3 that is the adhesive application portion. It looks like a structure in which a shear load and a tensile load are applied to the lower edge side of the adhesive portion 26 to cause a crack. However, in this embodiment, since the height of the main body 30A of the roof panel 30 is lowered from the inner end of the horizontal portion 30B2 via the inclined portion 30B1, the extension force F of the main body 30A of the roof panel 30 is vertical. It is input to the height direction intermediate part of the part 30B3. Therefore, the same operation as that of the first embodiment described above can be obtained. That is, a compressive force is applied only to the upper edge or the lower edge of the adhesive portion 26, and as a result, it is possible to effectively prevent a crack that becomes a starting point of peeling from entering the lower edge or the upper edge of the adhesive portion 26. As a result, also in the present embodiment, as in the first embodiment described above, even if the roof panel 30 is deformed due to thermal expansion, it is possible to effectively prevent the adhesive portion 26 from being peeled off, and the roof panel 30 and the roof side rail. The joining state with the part 12 can be maintained satisfactorily.

  Also in the present embodiment, since the adhesive portion 26 has a structure that receives the compressive force (lateral force) as a whole, the collision load at the time of a side collision is reduced to the roof side rail portion for the same reason as in the first embodiment. 12 can be transmitted (flowed) to the roof side rail portion 12 on the opposite side through the main body portion 30 </ b> A of the roof panel 30.

  Furthermore, in the present embodiment, the shape of the end portion 30B in the vehicle width direction of the main body portion 30A of the roof panel 30 is formed in a substantially inverted U shape with the vehicle lower side open, so that the end portion 30B extends in the vehicle width direction. It has a spring property that can be elastically deformed to some extent. For this reason, the expansion / contraction of the main body 30A of the roof panel 30 can be absorbed by the elastic deformation of the end 30B.

[Third Embodiment]
Hereinafter, a third embodiment of the vehicle roof structure according to the present invention will be described with reference to FIGS. 4 and 5. In addition, about the same component as 1st Embodiment mentioned above, the same number is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 4, in the third embodiment, at the end portion 24 </ b> B in the vehicle width direction of the roof panel 24, each of the portions where the adhesive application portion 24 </ b> B <b> 1 and the connection portion 24 </ b> B <b> 2 intersect has a substantially right triangle shape. The plurality of reinforcing ribs 40 are characterized in that they are erected at predetermined intervals in the vehicle front-rear direction. These reinforcing ribs 40 are formed integrally with the roof panel 24, and are provided on the front and back surfaces of the roof panel 24. When this embodiment is adopted, it is preferable to provide a drain hole or a drain groove at a portion where the adhesive application portion 24B1 and the connection portion 24B2 intersect at the end portion 24B of the roof panel 24 in the vehicle width direction.

(Action / Effect)
Also with the above configuration, since the configuration of the first embodiment described above is followed, the same operations and effects as the first embodiment can be obtained. Further, since the plurality of reinforcing ribs 40 are provided, the adhesive application portion 24B2 of the end portion 24B of the roof panel 24 in the vehicle width direction is reinforced, so that the reaction force against the extension of the main body portion 24A of the roof panel 24 is bonded. Sufficient load transmission can be performed also when acting on the agent application portion 24B2 or when a side collision load acts on the roof side rail portion 12.

  In the embodiment shown in FIG. 4, the configuration in which the reinforcing ribs 40 are provided at predetermined intervals is adopted. However, the present invention is not limited to this, and as shown in FIG. 5, a plurality of reinforcing ribs are connected in the vehicle front-rear direction. May be. That is, the thick portion 42B that increases in thickness from the main body portion 42A of the roof panel 42 toward the outside in the vehicle width direction may be integrally formed. In this way, there is no need to separately form a drain hole, and manufacturing is easy.

[Supplementary explanation of the above embodiment]
In the above-described embodiment, the roof panel 24 and the like are made of resin.

(Reference example)
Hereinafter, a reference example will be briefly described with reference to FIG. As shown in FIG. 6, in this reference example, a concave groove 62 extending in the vehicle front-rear direction is formed on the lower surface of the boundary portion between the main body portion 60B of the roof panel 60 and the end portion 60B in the vehicle width direction, A key-like stopper 64 is integrally formed on the outside of the lower surface of the main body 60B. The stopper 64 is formed so as to hang from the lower surface of the main body 60B, and a projecting engagement portion 66 that protrudes outward in the vehicle width direction is integrally formed at the lower end of the stopper 64. The distal end portion of the engaging portion 66 is disposed close to the vehicle lower side of the three inner flange portions 14B, 16B, and 18B of the roof side rail portion 12.

  The said structure is suitable when the edge part of the vehicle width direction of a roof panel cannot be adhere | attached on the vertical wall of a side outer panel for some reason. In the case of adopting the above configuration, when a collision load (lateral force) is input to the roof side rail portion 12 at the time of a side collision, the main body portion 60B of the roof panel 60 is bent upward from the concave groove 62 as a starting point. The three inner flange portions 14B, 16B, and 18B are engaged with the engaging portion 66 of the stopper 64. As a result, the side collision load is input to the main body portion 60A of the roof panel 60 via the stopper 64 and transmitted (flowed) to the roof side rail portion 12 on the opposite side.

10 Roof 12 Roof side rail (vehicle body side component)
DESCRIPTION OF SYMBOLS 20 Vertical wall 24 Roof panel 24A Main body part 24B End part of the vehicle width direction 24B1 Adhesive application part 24B2 Connection part 26 Adhesive part 28 Roof part 30 Roof panel 30A Main body part 30B End part of the vehicle width direction 42 Roof panel

Claims (5)

A roof panel made of resin or aluminum or aluminum alloy;
A vehicle body side component that is made of a steel plate and extends in the vehicle front-rear direction along an end of the roof panel in the vehicle width direction;
An adhesive portion that joins an end of the roof panel in the vehicle width direction to the vehicle body side component;
Have
The shape of the end portion of the roof panel in the vehicle width direction is set so that the elongation force when the main body portion of the roof panel thermally expands acts as a compressive force on the adhesive portion from the upper edge to the lower edge. Being
Vehicle roof structure. The elongation force of the roof panel acts along the main body of the roof panel,
Furthermore, the height relationship between the main body portion of the roof panel and the adhesive portion is set so that the line of action of the elongation force of the roof panel intersects at the intermediate portion in the height direction of the adhesive portion.
The roof structure for a vehicle according to claim 1. The vehicle body side component member includes a vertical wall extending in a vehicle vertical direction at a position facing an end of the roof panel in the vehicle width direction,
An end portion in the vehicle width direction of the roof panel is formed continuously with an adhesive application portion that is arranged in parallel to the vertical wall and to which the adhesive of the adhesive portion is applied, and a main body portion of the roof panel. And a connection part connected to the adhesive application part at an intermediate position excluding the upper edge part and the lower edge part,
The roof structure for a vehicle according to claim 1 or 2. The longitudinal sectional shape of the end of the roof panel in the vehicle width direction when the roof panel is cut along the vehicle width direction is a T-shape.
The vehicle roof structure according to any one of claims 1 to 3. At the end portion in the vehicle width direction of the roof panel, a flange portion is formed that protrudes outward in the vehicle width direction from the upper end portion of the end portion in the vehicle width direction of the roof panel.
The vehicle roof structure according to any one of claims 1 to 4.

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