JP2013112099A - Vehicle body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle body structure in which a common roof member can be applied even if the design of a roof panel is different.SOLUTION: A vehicle body structure includes a roof panel 110 constituting a top face of a vehicle body 100 and a side body panel 120 which is joined to the roof panel and constitutes a vehicle body side face. The vehicle body structure further includes a roof member 140 which extends in a vehicle width direction at such a position and in such an attitude as to prevent interference with the roof panel at a vehicle inner side of the roof panel and of which both end portions are bonded to the side body panel. In the side body panel, a step 122 is provided correspondingly to a position and a shape of the end portions of the roof member at a spot where the end portions of the roof member are joined.

Description

  The present invention relates to a vehicle body structure including a roof panel that forms a top surface of a vehicle body, and a side body panel that is joined to the roof panel and forms a side surface of the vehicle body.

  A roof member extending in the vehicle width direction is provided as a reinforcing member inside the vehicle roof (roof panel). Thereby, the structural strength against impact load from the side of the vehicle can be improved. Moreover, the interior member in the vehicle interior is attached to the roof member, and also plays a role of supporting it. As a method for attaching the roof member to the vehicle body, for example, in Patent Document 1, the outer end of the roof member in the vehicle width direction is sandwiched between the outer side panel and the roof panel constituting the vehicle body, and these three members are used. A structure is disclosed in which the two are joined together.

JP 2007-83830 A

  On the other hand, on the inner side in the vehicle width direction of the roof member, the roof member is bonded to the roof panel by applying an adhesive such as a mastic sealer. For this reason, on the inner side in the vehicle width direction of the roof member, as a requirement for joining with the roof panel, it is required to secure a clearance with which a mastic sealer can be applied between them. Therefore, the inside of the roof member in the vehicle width direction generally has a shape in which a slight gap is formed between the roof panel and the roof member, that is, a shape offset from the roof panel. It was.

  However, with the recent diversification of vehicle designs, a roof panel corresponding to each design (vehicle type) is required. Then, since the curvature of the roof panel differs depending on the design, a new roof member is created for each design (model) to correspond to the curvature of each design, and the outer side panel is matched to the newly created roof member. Must be created, and the cost increases due to the increased mold costs. In particular, the roof member is a member for improving the structural strength against the impact load from the side of the vehicle. Therefore, when a roof member is newly manufactured, various tests are required to confirm its reliability. The process required a lot of time and effort.

  Here, since the outer side panel is a member directly connected to the design like the roof panel, it is unavoidable to create a new design for each design (vehicle type), and it is difficult to make it common. it is conceivable that. In contrast, the roof member is a member that is not directly connected to the design because it is disposed inside the roof panel as described above. Therefore, in order to reduce costs and the number of processes, it has been strongly desired to share (reuse) existing roof members even in new vehicle types.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a vehicle body structure capable of applying a common roof member even when the design of the roof panel is different.

  In order to solve the above-described problems, a representative structure of a vehicle body structure according to the present invention includes a roof panel that forms the top surface of the vehicle body, and a side body panel that is joined to the roof panel and forms the side surface of the vehicle body. The roof panel further includes a roof member that extends in the vehicle width direction at a position and posture that does not interfere with the roof panel on the inner side of the roof panel and has both ends joined to the side body panel. A step portion corresponding to the position and shape of the end portion of the roof member is provided at a position where the end portion of the member is joined.

  According to the above configuration, there is no need to newly design a new roof member corresponding to a roof panel having a design such as a specific curvature, which is originally required, and an existing roof member can be used. Can be diverted. By arranging the existing roof member in a position / posture that does not interfere with the newly designed roof panel, even if the joining position or joining angle of the roof member to the side body panel changes, the change will be reflected in the side body. It is because it can absorb by the level | step-difference part provided in the panel. Therefore, when a roof panel is newly designed, it is exclusively the side body panel that will be redesigned. If the vehicle width is the same, the existing design will change even if the roof panel has a different design (curvature). The roof member can be diverted.

  By sharing (reusing) the roof member in this way, the opportunity to create a new roof member is reduced, so that the cost associated with the mold cost can be reduced. Moreover, since the roof member used for the existing vehicle has already passed the reliability confirmation test and has reliability based on the results, it is not necessary to perform a new test. Therefore, it is possible to omit steps such as a strength test required to confirm the reliability of the new roof member. Furthermore, since the step portion can be used as a mark for positioning when the roof member is joined to the side body panel, it is possible to improve the assembling workability.

  The stepped portion may have a shape recessed toward the lower side in the vehicle body height direction. According to such a configuration, the shape of the stepped portion does not affect the upper portion of the joint portion between the side body panel and the end of the roof member. Thereby, for example, even when the roof member is further joined to the joint portion between the side body panel and the end of the roof member, and the roof molding is disposed above the joint portion, the existing roof molding is left as it is. The roof molding can be shared.

  The roof panel may be provided with a second step portion having a shape following the step portion at a position corresponding to the step portion of the side body panel. Thereby, in the junction location of a roof member and a side body panel, a roof member will be in the state pinched | interposed by the step part of the side body panel, and the 2nd step part of the roof panel from the upper and lower sides. Accordingly, since the movement of the roof member is suppressed, it is possible to prevent the positional deviation. In addition, since the three members of the roof panel, the roof member, and the side body panel can be welded at the same place, it is possible to increase their bonding strength.

  The posture of the roof member may be in a state inclined in the vehicle front-rear direction. Thereby, interference with a roof panel can be avoided suitably.

  ADVANTAGE OF THE INVENTION According to this invention, even if it is a case where the design of a roof panel differs, the vehicle body structure which can apply a common roof member can be provided.

It is a figure which shows the vehicle body structure concerning this embodiment. FIG. 2 is a detailed view of FIG. It is an enlarged view of FIG.1 (b). It is sectional drawing of FIG.1 (b) and FIG. 3 (a).

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a diagram illustrating a vehicle body structure according to the present embodiment, FIG. 1A is a diagram illustrating an upper portion of a vehicle body to which the vehicle body structure of the present embodiment is applied, and FIG. It is a figure of the state which permeate | transmitted the roof panel of a). 2 is a detailed view of FIG. 1 (b), FIG. 2 (a) is a partially enlarged view of FIG. 1 (b), and FIG. 2 (b) is a cross-sectional view taken along line AA of FIG. 1 (b). FIG. 2C is a cross-sectional view taken along the line BB in FIG.

  As shown in FIG. 1A, a roof 102 serving as a ceiling portion is provided on the upper portion of the vehicle body 100. In the roof 102, a roof panel 110 serving as a top surface of the vehicle body is disposed on the outer side (upper side), and a molded ceiling (not shown) is disposed on the inner side (lower side) of the roof panel 110. Side body panels 120 that extend in the vehicle body height direction and constitute the side surfaces of the vehicle body are joined to both ends of the roof panel 110 in the vehicle width direction. A roof molding 130 is disposed above the joint between the roof panel 110 and the side body panel 120 as shown in FIG. Thereby, since the welding trace (not shown) of this junction part can be hidden, an external appearance can be maintained favorable and it becomes possible to prevent the rain water from entering the vehicle interior from the junction part.

  As shown in FIG. 1B, a roof member 140 as a reinforcing member is disposed on the roof 102. The roof member 140 extends in the vehicle width direction on the vehicle inner side of the roof panel 110, improves the strength of the vehicle body structure, and is used for parts such as lights (not shown) set on the ceiling (not shown) in the vehicle interior. It is a member that contributes to improving the mounting strength. As shown in FIG. 2C, the roof member 140 is joined to the side body panel 120 and the roof panel 110 at the outer end in the vehicle width direction. In the present embodiment, the roof panel 110, the roof member 140, and the side body panel 120 are joined in this order from the top in the vehicle body height direction.

  FIG. 2A is a partially enlarged view of the inside of the broken-line circle C in FIG. On the inner side in the vehicle width direction of the roof member 140, an adhesive (not shown) such as a mastic sealer is applied to a surface on the outer side of the vehicle body of the bonding portion 142, which is an area within a broken line circle shown in FIG. As a result, the roof member 140 can be attached to the roof panel 110 on the inner side in the vehicle width direction without causing welding marks due to welding.

  Next, features of the vehicle body structure of the present embodiment will be described. 3 is an enlarged view of FIG. 1 (b), FIG. 3 (a) is an enlarged view within a broken-line circle D of FIG. 1 (b), and FIG. 3 (b) is shown in FIG. 3 (a). It is a figure which shows only the side body panel 120. FIG. 4 is a cross-sectional view of FIGS. 1B and 3A, FIG. 4A is a cross-sectional view taken along line EE of FIG. 1B, and FIG. 4B is a cross-sectional view of FIG. It is FF sectional drawing of a), FIG.4 (c) is a figure which illustrates the other variation of FIG.4 (b). For ease of understanding, in FIG. 3A, the roof molding 130 is not shown, and the roof panel 110 is shown in a transparent state.

  As a first feature of the vehicle body structure of the present embodiment, the roof member 140 interferes with the roof panel 110 as shown in FIG. 4A at the inner side in the vehicle width direction, for example, at the EE position in FIG. It is arranged at the position and posture (tilt) that are not. That is, the roof member 140 is set to a position and posture at which the layout with the roof panel 110 is established on the inner side in the vehicle width direction. In this embodiment, the roof member 140 is disposed in a state (posture) inclined in the vehicle front-rear direction. At this time, since there is a gap between the roof panel 110 and the adhesive portion 142 provided in the vicinity of both end edges of the roof member 140 in the longitudinal direction of the vehicle body, the clearance for applying the above-described mastic sealer is preferably ensured. .

  In the present embodiment, the EE position in the vicinity of the vehicle width direction center of the vehicle body 100 shown in FIG. 1B is illustrated and described as the vehicle width direction inner side. However, the present invention is not limited to this. In the vehicle width direction of 140, all ranges (regions other than the attachment portion 144) between the attachment portions 144 (see FIG. 3A) provided at both ends on the outer side in the vehicle width direction are “inward in the vehicle width direction”. It corresponds to. Of all the ranges in the vehicle width direction, the location where the roof panel 110 and the roof member 140 are closest to each other in the vehicle body height direction, that is, the location with the strictest installation conditions (layout conditions), is used as a reference. The roof member 140 is positioned at an inclination (position) at which the layout with the roof panel 110 is established.

  As a second feature of the vehicle body structure of the present embodiment, the side body panel 120 has a step 122 corresponding to the position and shape of the end of the roof member 140 at a position where the end of the roof member 140 is joined. Is provided. Specifically, as shown in FIG. 3A, in the present embodiment, a mounting portion 144 is provided at the end of the roof member 140 on the outer side in the vehicle width direction. Then, as shown in FIG. 3B, in the side body panel 120, the attachment portion 144 of the roof member 140 (positioned so that the layout with the roof panel 110 is established inside in the vehicle width direction) is joined. A stepped portion 122 corresponding to the shape, position, and inclination of the mounting portion 144 is formed at a location.

  According to the above configuration, the design of the roof panel 110 and the curvature thereof are different, and accordingly, the joining position and the joining angle (tilt) of the end portion (the attachment portion 144 in the present embodiment) of the roof member 140 to the side body panel 120. Even when the change occurs, the step 122 corresponding to the shape of the end of the roof member 140 can cope with the change. Thereby, if the vehicle width is the same, the same roof member 140 can be applied even if the design (curvature) of the roof panel 110 is different, and the roof member 140 can be shared.

  Conventionally, even if the vehicle width is the same, if the design of the roof panel 110 is different, a roof member corresponding to the design has to be newly created, which increases the cost of design and mold costs. Furthermore, a great deal of labor was required to confirm the reliability of the new roof member. On the other hand, in the present embodiment, even if the design of the roof panel 110 is different, the common roof member 140 can be used if the vehicle width is the same, so that it is not necessary to create a new roof member. Costs related to design and mold costs can be reduced. In addition, the fact that the roof member 140 can be shared means that a roof member that has a track record of being used in an existing vehicle type and has ensured reliability can be applied to other vehicle types. Therefore, it is possible to reduce the labor required for checking the reliability of the new roof member.

  Further, the stepped portion 122 provided on the side body panel 120 can be used as a mark during the assembly process in the vehicle body. For example, the step portion 122 can be used as a positioning mark when the roof member 140 is joined to the side body panel 120, and a mastic sealer is applied between the roof panel 110 and the side body panel 120. It can also be used as a mark when welding between panels. This makes it possible to improve the assembly workability.

  In the present embodiment, in particular, the stepped portion 122 has a shape recessed toward the lower side in the vehicle body height direction with respect to the surrounding surface. Thereby, the shape of the stepped portion 122 does not affect the upper portion of the joint portion between the attachment portion 144 of the roof member 140 and the side body panel 120. For this reason, even when the roof panel 110 and the side body panel 120 are joined at the end of the roof member 140 in the vehicle width direction outside, the roof molding 130 is disposed above the joined portion (FIG. 2). (See (c)), an existing roof molding can be used as it is. Therefore, it is possible to share the roof molding 130 as well, and it is possible to obtain an advantage that the labor required for checking the reliability is not necessary as described above.

  In addition, in this embodiment, although the step part 122 of the shape dented toward the lower side of the vehicle body height direction was illustrated, it is not limited to this. As already described, since the shape of the stepped portion 122 is determined according to the shape, position, and inclination of the end portion (attachment portion 144) of the roof member 140, the stepped portion 122 is located on the upper side in the vehicle body height direction. It may be a shape that protrudes toward the surface. In this case, it is difficult to obtain an effect when the stepped portion 122 is formed in a concave shape, but it is possible to obtain a sufficient effect for the common use of the roof member 140.

  4B illustrates the configuration in which the stepped portion 122 is provided only on the side body panel 120, this is not restrictive. As another example, in FIG. 4C, in the roof panel 110, a step portion having a shape following the step portion 122 (hereinafter referred to as the step portion 122) is formed at a position corresponding to the step portion 122 of the side body panel 120. In order to avoid confusion, the second step portion 112 is formed.

  When the second step portion 112 is provided on the roof panel 110 as described above, the roof member 140 is moved by the roof panel 110 and the side body panel 120 at the joint portion with the side body panel 120 as shown in FIG. It will be sandwiched from above and below. Thereby, the movement of the roof member 140 is suppressed, and the effect of preventing the displacement is obtained. Further, since the roof member 140 is sandwiched from above and below by the roof panel 110 and the side body panel 120, these three members can be welded at the same location, so that the joint strength can be improved.

  As described above, the roof molding 130 is arranged above the joint portion between the roof panel 110 and the side body panel 120 (see FIG. 2B). Therefore, as shown in FIG. 4C, the second stepped portion 112 provided on the roof panel 110 is hidden by the roof molding 130, so that the second stepped portion 112 is not likely to cause a poor appearance of the vehicle body 100.

  As described above, in the vehicle body structure according to the present embodiment, the roof member 140 is positioned so that the layout with the roof panel 110 is established on the inner side in the vehicle width direction. On the other hand, on the outer side in the vehicle width direction, a step 122 corresponding to the shape of the end of the roof member 140 is formed in the side body panel 120, and the end of the roof member 140 is joined thereto. As a result, changes in the joining position and the like of the roof member 140 to the side body panel 120 due to the different design (curvature) of the roof panel 110 can be absorbed by the stepped portion 122. For example, the same roof member 140 can be applied without depending on the design of the roof panel 110. Since the roof member 140 is made common in this way, it is not necessary to confirm the mold cost and reliability required for a new roof member that has been created according to the design of the conventional roof panel 110. It becomes possible to reduce labor.

  In the present embodiment, the roof member 140 disposed in the vicinity of the center in the front-rear direction of the vehicle body 100 has been described as an example. However, the present invention is not limited to this. Needless to say, the vehicle body structure described above can be applied to a roof member (not shown) disposed in front of or behind the vehicle body 100.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle body structure including a roof panel that forms a top surface of a vehicle body, and a side body panel that is joined to the roof panel and forms a side surface of the vehicle body.

DESCRIPTION OF SYMBOLS 100 ... Car body, 102 ... Roof, 110 ... Roof panel, 112 ... 2nd step part, 120 ... Side body panel, 122 ... Step part, 130 ... Roof molding, 140 ... Roof member, 142 ... Adhesion part, 144 ... Attachment part

Claims (4)

A vehicle body structure including a roof panel that forms a top surface of a vehicle body, and a side body panel that is joined to the roof panel and forms a side surface of the vehicle body,
A roof member that extends in the vehicle width direction at a position and posture that does not interfere with the roof panel on the vehicle interior side of the roof panel and that has both ends joined to the side body panel;
A vehicle body structure characterized in that the side body panel is provided with a step portion corresponding to the position and shape of the end of the roof member at a location where the end of the roof member is joined.   The vehicle body structure according to claim 1, wherein the stepped portion has a shape recessed toward the lower side in the vehicle body height direction.   The vehicle body structure according to claim 1 or 2, wherein the roof panel is provided with a second step portion having a shape following the step portion at a position corresponding to the step portion of the side body panel. .   The vehicle body structure according to any one of claims 1 to 3, wherein the roof member is tilted in a vehicle longitudinal direction.

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