JP2012162114A - Panel structure of vehicle body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sufficiently secure rigidity of a door hinge mounting part of a front pillar outer part while preventing increase of the number of components and assembly manhours and increase of vehicular weight.SOLUTION: This panel structure 4 of a vehicle body includes: an inner panel 17; an outer panel 16; and a dash panel 12. The inner panel 17 includes a front pillar inner part 28. The outer panel 16 includes a front pillar outer part 19. The front pillar outer part 19 includes a door hinge mounting surface part 26. The front pillar inner part 28 includes an inner projecting part 35. The dash panel 12 includes a dash panel projecting part 42. An inner top surface part 36 of the inner projecting part 35 is jointed to a dash panel top surface part 45 of the dash panel projecting part 42 in a state superposing from the outside in the vehicle width direction, and the door hinge mounting surface part 26 is jointed to an inner top surface part 36 of the inner projecting part 35 in a state superposing from the outside in the vehicle width direction.

Description

  The present invention relates to a panel structure of a vehicle body having a door hinge mounting portion.

  In JP 2008-126983 A, an outer panel integrally formed by press molding, an inner panel disposed corresponding to the inner side of the outer panel in the vehicle width direction, and disposed between the outer panel and the inner panel. A body side structure comprising a reinforcement is described. The outer panel has a front pillar outer portion. The inner panel has a front pillar inner portion. The front pillar outer portion and the front pillar inner portion define a closed cross section that partitions the front of the door opening. The outer surface of the reinforcement is fixed to the inner surface of the front pillar outer part by welding or the like.

JP 2008-126983 A

  In the body side structure disclosed in Japanese Patent Application Laid-Open No. 2008-126983, the reinforcement is fixed to the front pillar outer portion of the outer panel. Therefore, when the door is attached to the front pillar outer portion via the door hinge, the door hinge is fixed. The rigidity of the (door hinge mounting portion) is ensured by reinforcement.

  However, in the above body side structure, the reinforcement separate from the outer panel and inner panel must be fixed to the front pillar outer part by welding or the like, which increases the number of parts and assembly man-hours, and increases the weight of the vehicle. there's a possibility that.

  Therefore, the present invention provides a panel structure for a vehicle body that can sufficiently ensure the rigidity of the door hinge mounting portion of the front pillar outer portion while suppressing an increase in the number of parts and assembly steps and the weight of the vehicle. Objective.

  In order to achieve the above object, the panel structure of the vehicle body of the present invention includes an inner panel, an outer panel, and a dash panel.

  The inner panel has a front pillar inner portion extending in the vertical direction in the vicinity of the front corner of the passenger compartment. The outer panel has a front pillar outer portion that faces the front pillar inner portion, and is disposed on the outer side in the vehicle width direction of the inner panel. The dash panel stands up along the vehicle width direction and partitions the front end of the passenger compartment. The front pillar inner portion includes a front inner joint surface portion that is joined to an edge of the dash panel in the vehicle width direction in an overlapping state from the outside of the passenger compartment, an inner center portion that extends rearward from the inner joint surface portion, And an inner joint surface portion on the rear side extending rearward from the inner central portion. The front pillar outer portion includes a front outer joint surface portion that is joined to the front inner joint surface portion from the outside of the vehicle compartment, an outer central portion that extends rearward from the outer joint surface portion, and a rear side from the outer central portion. And a rear outer joint surface portion integrally joined to the rear inner joint surface portion in a state of overlapping from the vehicle width direction outside. In a state where the inner joint surface portion and the outer joint surface portion are joined, the inner central portion and the outer central portion are separated from each other to define a closed cross section, and the front pillar inner portion and the front pillar outer portion are doors. A front pillar that defines the front of the opening is formed. The outer central portion includes a door hinge mounting surface portion that rotatably supports a door that opens and closes the door opening via a door hinge. An inner convex portion that protrudes toward the door hinge mounting surface portion is bent at the inner central portion. The dash panel integrally has a convex portion forming surface portion that extends rearward from the end edge portion and faces the inner convex portion. A dash panel convex portion that protrudes toward the inner convex portion is bent and formed on the convex portion forming surface portion. The top surface portion of the inner convex portion is joined to the top surface portion of the dash panel convex portion so as to overlap from the outside in the vehicle width direction. The door hinge mounting surface portion is joined to the top surface portion of the inner convex portion so as to overlap from the outside in the vehicle width direction.

  In the above configuration, the inner convex portion protruding toward the door hinge mounting surface portion is bent at the inner central portion, and the dash panel convex portion protruding toward the inner convex portion is bent at the convex forming surface portion of the dash panel. It is formed. Also, the top surface portion of the inner convex portion is joined to the top surface portion of the dash panel convex portion from the outside in the vehicle width direction, and the door hinge mounting surface portion is overlapped to the top surface portion of the inner convex portion from the outside in the vehicle width direction. Are joined together. Thereby, the door hinge mounting surface portion is reinforced by the inner convex portion and the dash panel convex portion. That is, the plate thickness of the door hinge mounting surface portion is substantially the thickness obtained by adding the plate thickness of the top surface portion of the inner convex portion and the plate thickness of the top surface portion of the dash panel convex portion to its own plate thickness. Therefore, the rigidity of the door hinge mounting surface portion (the rigidity of the door hinge mounting portion) can be increased by increasing the thickness of the substantial door hinge mounting surface portion.

  Further, since the inner convex portion and the dash panel convex portion are formed in a bent shape, the shape is not easily deformed by the force input to the door hinge mounting surface portion. For this reason, the rigidity of the door hinge attachment surface part reinforced by the inner convex part and the dash panel convex part can be increased.

  Further, when a force applied to the door is input to the door hinge mounting surface portion of the outer panel and transmitted to the outer panel via the door hinge mounting surface portion, the transmitted force is transmitted to the inner panel via the inner panel convex portion. Moreover, the force transmitted to the inner panel is transmitted to the dash panel via the dash panel convex portion. That is, the force input to the door hinge mounting surface is shared by the outer panel, the inner panel, and the dash panel. Thereby, the rigidity of a door hinge attachment surface part can further be improved.

  Accordingly, the rigidity of the door hinge mounting surface portion of the front pillar outer portion (the rigidity of the door hinge mounting portion) can be sufficiently ensured without providing the reinforcement separately from the outer panel and the inner panel.

  ADVANTAGE OF THE INVENTION According to this invention, the rigidity of the door hinge attachment part of a front pillar outer part can fully be ensured, suppressing the increase in a number of parts, an assembly man-hour, and the weight of a vehicle.

It is a principal part perspective view of the vehicle concerning one Embodiment of this invention. It is a principal part disassembled perspective view of FIG. It is XX sectional drawing of the vehicle of FIG. It is XX sectional view of the vehicle which shows the 1st modification of one Embodiment of this invention. It is XX sectional drawing of the vehicle which shows the 2nd modification of one Embodiment of this invention. It is a principal part disassembled perspective view of the vehicle which shows the 3rd modification of one Embodiment of this invention. It is a principal part disassembled perspective view of the vehicle which shows the 4th modification of one Embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the drawing, the arrow FR indicates the front of the vehicle, the arrow UP indicates the upper side, and the arrow IN indicates the inner side in the vehicle width direction. In the following description, front and rear means front and rear of the vehicle, and left and right mean left and right in a state of facing the front of the vehicle.

  As shown in FIG. 1, the vehicle 1 of the present embodiment is a cab-over type truck in which an engine room (not shown) is located below the cab 2. The cab 2 is rotatably supported with respect to the front end portion of the chassis frame 3, and includes a vehicle body panel structure 4 on the front end side of the cab.

  The chassis frame 3 includes left and right main beams 5 extending in parallel along the front-rear direction and a plurality of cross members 6. The left and right main beams 5 are connected to each other by a plurality of orthogonal cross members 6. A traveling axle (not shown) is provided near the front end and the rear end of the chassis frame 3. The traveling wheels 7 are rotatably supported at both ends of the traveling axle in the vehicle width direction.

  As shown in FIG.1 and FIG.2, the cab 2 is a substantially box-shaped body and partitions the compartment 8 inside. The cab 2 includes a roof panel 9, a side panel 10, a front frame portion 11, a dash panel 12, a back panel 13, and a floor panel 14. These panels are made of a high-strength material such as a steel plate, for example, and are formed by press molding. Moreover, these panels are joined by spot welding or the like.

  The roof panel 9 defines the upper part of the passenger compartment 8. The side panel 10 is joined to both ends of the roof panel 9 in the vehicle width direction and defines both ends of the vehicle compartment 8 in the vehicle width direction. The front frame portion 11 is joined to the side panel 10 in front of the passenger compartment 8. The dash panel 12 is joined to the front frame portion 11 and the side panel 10 and stands up along the vehicle width direction to partition the front end of the passenger compartment 8. The back panel 13 is joined to the roof panel 9 and the side panel 10 and defines the rear part of the passenger compartment 8. The floor panel 14 is joined to the side panel 10, the dash panel 12, and the back panel 13, and defines the bottom surface of the passenger compartment 8.

  The floor panel 14 is a substantially flat panel. On the lower surface of the floor panel 14, a floor frame 15 having a substantially U-shaped cross section extending rearward from the front is integrally formed in a pair of left and right with a predetermined interval.

  As shown in FIG. 2, the side panel 10 includes an outer panel 16 on the outer side in the vehicle width direction, and an inner panel 17 disposed to face the inner side in the vehicle width direction of the outer panel.

  The outer panel 16 includes a roof side rail outer portion 18, a front pillar outer portion 19, a rear pillar outer portion 20, a rocker outer portion 21, and a fender outer portion 22. The outer panel 16 has an outer door opening 23 in the center. These are integrally formed by pressing or the like.

The roof side rail outer portion 18 extends in the front-rear direction and defines the upper edge of the outer door opening 23. The front pillar outer portion 19 extends downward from the front end of the roof side rail outer portion 18 and defines the front edge of the outer door opening 23. The rear pillar outer portion 20 extends downward from the rear end of the roof side rail outer portion 18 and defines a rear edge of the outer door opening 23.
The rocker outer portion 21 extends rearward from the lower end of the front pillar outer portion 19. The fender outer portion 22 extends in an arch shape from the rear end of the rocker outer portion 21 to the lower end of the rear pillar outer portion 20. The rocker outer portion 21 and the fender outer portion 22 define the lower edge of the outer door opening 23.

  The roof side rail outer part 18, the front pillar outer part 19, the rear pillar outer part 20, the rocker outer part 21 and the fender outer part 22 are each formed in a substantially U shape by bending both ends inward in the vehicle width direction. It has a central part. The roof side rail outer part 18 has an outer central part 18a, the front pillar outer part 19 has an outer central part 19a, the rear pillar outer part 20 has an outer central part 20a, and the rocker outer part 21 has an outer central part. 21 and the fender outer part 22 has an outer central part 22a. Each outer central portion has outer inner bent portions 18b, 19b, 20b, 21b, and 22b that are bent and extended inward in the vehicle width direction at the end on the outer door opening 23 side. Each outer central portion has outer outer bent portions 18c, 19c, 20c, 21c, and 22c that are bent and extended inward in the vehicle width direction at the other end.

  The roof side rail outer part 18, the front pillar outer part 19, the rear pillar outer part 20, the rocker outer part 21 and the fender outer part 22 are bent toward the outer door opening 23 from the end of the outer inner bent part at the center of each outer part. And have flange-shaped outer inner joint surface portions 18d, 19d, 20d, 21d, and 21d.

  Further, the roof side rail outer portion 18, the front pillar outer portion 19, and the rear pillar outer portion 20 are outer outer joint surface portions 18e, 19e, and 20e that extend inward in the vehicle width direction from the end portions of the outer outer bent portions of the outer central portions. Have Further, the rocker outer portion 21 and the fender outer portion 22 have flange-like outer outer joint surface portions 21e and 22e extending downwardly from the end portions of the outer outer bent portions of the respective outer central portions.

  The front pillar outer portion 19 has an outer inclined portion 24 that is bent and extended in the vertical direction and inclined forward from the upper end, and an outer vertical portion 25 that is bent and extended downward from the lower end of the inclined portion. Door hinge attachment surface portions 26 are provided at two locations above and below the outer central portion 19 a of the outer vertical portion 25. The door hinge mounting surface portion 26 rotatably supports a door (not shown) via a door hinge (not shown). Further, the door hinge mounting surface portion 26 has a bolt hole (not shown) into which a bolt for fixing the door hinge is screwed.

  The inner panel 17 includes a roof side rail inner portion 27, a front pillar inner portion 28, a rear pillar inner portion 29, a rocker inner portion 30, and a fender inner portion 31. The inner panel 17 has an inner door opening 32 at the center. These are integrally formed by pressing or the like.

The roof side rail inner portion 27 extends in the front-rear direction and defines the upper edge of the inner door opening 32. The front pillar inner portion 28 extends downward from the front end of the roof side rail inner portion 27 and defines the front edge of the inner door opening 32. The rear pillar inner portion 29 extends downward from the rear end of the roof side rail inner portion 27 and defines the rear edge of the inner door opening 32.
The rocker inner portion 30 extends rearward from the lower end of the front pillar inner portion 28. The fender inner portion 31 extends in an arch shape from the rear end of the rocker inner portion 30 to the lower end of the rear pillar inner portion 29. The rocker inner portion 30 and the fender inner portion 31 define the lower edge of the inner door opening 32.

  The roof side rail inner part 27, the front pillar inner part 28, the rear pillar inner part 29, the rocker inner part 30, and the fender inner part 31 have a substantially flat inner center part. The roof side rail inner portion 27 has an inner central portion 27a, the front pillar inner portion 28 has an inner central portion 28a, the rear pillar inner portion 29 has an inner central portion 29a, and the rocker inner portion 30 has an inner central portion. 30a, and the fender inner portion 31 has an inner central portion 31a. Each inner central portion has inner inner joint surface portions 27b, 28b, 29b, 30b, 31b extending from the end on the inner door opening 32 side to the inner door opening 32 inside. In addition, the inner central portions of the roof side rail inner portion 27, the front pillar inner portion 28, and the rear pillar inner portion 29 are bent at the other end portion to be bent inward in the vehicle width direction, and the inner outer bent portions 27c, 28c, 29c. Moreover, the inner center part of the rear pillar inner part 29 has a plurality of lightening holes 60 for weight reduction.

  The roof side rail inner portion 27, the front pillar inner portion 28, and the rear pillar inner portion 29 have inner outer joint surface portions 27d, 28d, and 29d that extend inward in the vehicle width direction from the end of the inner outer bent portion at the center of each inner portion. . The rocker inner portion 30 and the fender inner portion 31 have inner outer joint surface portions 30d and 31d at the lower end on the outer side in the vehicle width direction.

  The front pillar inner portion 28 has an inner inclined portion 33 that is bent and extended in the vertical direction and inclined forward from the upper end, and an inner vertical portion 34 that is bent and extended downward from the lower end of the inner inclined portion 33. Inner convex portions 35 protruding outward in the vehicle width direction are integrally bent at two locations above and below the inner central portion 28a of the inner vertical portion 34 by pressing or the like. The inner convex portion 35 has a substantially quadrangular frustum shape and has a substantially rectangular inner top surface portion 36 on the outer side in the vehicle width direction. The inner convex portion 35 has an inner standing surface portion 37. The inner standing surface portion 37 extends from each side of the inner top surface portion 36 to the base end portion of the inner convex portion 35 while inclining inward in the vehicle width direction. Further, in the inner central portion 28a of the inner vertical portion 34, a substantially rectangular through hole 38 penetrating the inner central portion 28a is formed between the upper and lower inner convex portions 35.

  When the inner panel 17 and the outer panel 16 are joined and the side panel 10 is formed, the roof side rail inner portion 27, the front pillar inner portion 28, the rear pillar inner portion 29, the rocker inner portion 30, the fender inner portion 31, and the inner door opening. 32 are arranged at positions facing the roof side rail outer part 18, the front pillar outer part 19, the rear pillar outer part 20, the rocker outer part 21, the fender outer part 22, and the outer door opening 23 on the inner side in the vehicle width direction. The

  The dash panel 12 is a substantially rectangular plate-like body, and includes a dash panel main body 39, a dash panel bent portion 40, a convex portion forming surface portion 41, a dash panel convex portion 42, a long hole 43, and a floor frame joint portion. 44. These are integrally formed by pressing or the like.

  The dash panel body 39 extends along the vehicle width direction. The dash panel bent portion 40 extends obliquely backward from both ends of the dash panel main body. The long holes 43 are provided at two places on the upper left and right sides of the dash panel main body 39. The floor frame joint portion 44 protrudes downward from two left and right portions of the lower end portion of the dash panel main body 39.

  The convex portion forming surface portions 41 are provided at two locations on the top and bottom of the end portion of the dash panel bent portion 40. The convex portion forming surface portion 41 extends by bending backward from the end portion of the dash panel bent portion 40. The convex portion forming surface portion 41 positioned below is shorter in the vertical direction than the convex portion forming surface portion 41 positioned above. In addition, you may make the length of the up-down direction of the convex part formation surface part 41 located below into the same length as the convex part formation surface part 41 located above.

  The dash panel convex portion 42 projects outward from the convex portion forming surface portion 41 in the vehicle width direction. The dash panel convex portion 42 has a substantially rectangular dash panel top surface portion 45 on the outer side in the vehicle width direction. Further, the dash panel convex portion 42 has a dash panel rising surface portion 46. The dash panel rising surface portion 46 extends from the side located in front of the dash panel top surface portion 45, the side located above and the side located below to the convex forming surface portion 41 while being inclined inward in the vehicle width direction. The dash panel convex part 42 located below is smaller in size than the dash panel convex part 42 located above. In addition, when the length in the vertical direction of the convex portion forming surface portion 41 positioned below is the same as the length of the convex portion forming surface portion 41 positioned above, the size of the dash panel convex portion 42 positioned below is You may make it the same magnitude | size as the dash panel convex part 42 located upwards.

  The lower end portion of the dash panel body 39 is joined to the front end portion of the floor panel 14 by spot welding or the like. The floor frame joint portion 44 is joined to the front end portion of the floor frame 15 by spot welding or the like.

  The front frame portion 11 includes a front frame portion main body 47 and a front frame bent portion 48. The front frame portion main body 47 extends along the vehicle width direction. The front frame bent portion 48 extends obliquely backward from both ends of the front frame portion main body 47. The front frame portion 11 is welded to the upper side of the dash panel 12 on the passenger compartment side by spot welding or the like. When welded, the long hole 43 of the dash panel body 12 is sealed by the front frame portion 11.

  Next, the joining mode between the outer panel 16 and the inner panel 17 and the joining mode between the side panel 10 and the dash panel 12 will be described. In addition, since the vehicle of this embodiment is the structure of right and left, it demonstrates about the left side of a vehicle and abbreviate | omits description about the right side of a vehicle. Moreover, since the joint part of the door hinge attachment part 31 and the inner convex part 35 in the joining aspect of the outer panel 16 and the inner panel 17 is the same structure up and down, an upper joint part is demonstrated and about a lower joint part. Description is omitted. The same applies to the joint portion between the inner convex portion 35 and the dash panel convex portion 42 in the joining mode of the side panel 10 and the dash panel 12.

  First, the joining mode of the outer panel 16 and the inner panel 17 will be described. A vehicle interior side surface and a roof side rail of each outer outer joint surface portion 18e, 19e, 20e, 21e, 22e of the roof side rail outer portion 18, the front pillar outer portion 19, the rear pillar outer portion 20, the rocker outer portion 21, and the fender outer portion 22. The inner outer joint surface portions 27d, 28d, 29d, 30d, 31d of the inner portion 27, the front pillar inner portion 28, the rear pillar inner portion 29, the rocker inner portion 30, and the fender inner portion 31 are spot welded or the like. Be joined. Also, the roof side rail inner portion 18d, 19d, 20d, 21d, and 22d of the roof side rail outer portion 18, the front pillar outer portion 19, the rear pillar outer portion 20, the rocker outer portion 21 and the fender outer portion 22 are formed on the roof side rail inner. Part 27, front pillar inner part 28, rear pillar inner part 29, rocker inner part 30, and inner inner joint surfaces 27b, 28b, 29b, 30b, 31b of fender inner part 31 are joined by spot welding or the like.

  In the state where the outer panel 16 and the inner panel 17 are joined as described above, the outer panel 16 and the inner panel 17 form the side panel 10 (see FIG. 1). Further, the roof side rail outer portion 18 and the roof side rail inner portion 27 form a roof side rail portion 49 of the side panel 10. The front pillar outer portion 19 and the front pillar inner portion 28 form a front pillar portion 50 of the side panel 10. The outer central portion 19a of the front pillar outer portion 19 and the inner central portion 28a of the front pillar inner portion 28 are spaced apart from each other and define a closed cross section 51 (see FIG. 3) inside the front pillar portion 50. The rear pillar outer portion 20 and the rear pillar inner portion 29 form a rear pillar portion 52 of the side panel 10. The rocker outer part 21 and the rocker inner part 30 form a rocker part 53 of the side panel 10. The fender outer portion 22 and the fender inner portion 31 form a fender portion 54 of the side panel 10. The fender portion 54 has an arch-shaped wheel house portion 55 that covers the traveling wheel 7 from above. Further, the outer door opening 23 and the inner door opening 32 communicate with each other to form a door opening 56 of the side panel 10. The door opening 56 is partitioned into an upper edge at the roof side rail portion 49, a front edge at the front pillar portion 50, a rear edge at the rear pillar portion 52, and a lower edge at the rocker portion 53 and the fender portion 54, respectively. The door opening 56 is closed with the door (not shown) disposed at the closed position.

  As shown in FIG. 3, the inner convex portion 35 projects toward the door hinge mounting surface portion 26 in a closed cross section 51 formed inside the front pillar portion 50. The inner side surface in the vehicle width direction of the door hinge mounting surface portion 26 of the outer panel is joined to the outer surface in the vehicle width direction of the inner top surface portion 36 of the inner convex portion 35 by spot welding or the like in a state of overlapping from the outer side in the vehicle width direction.

  Next, the joining aspect of the side panel 10 and the dash panel 12 is demonstrated. As shown in FIG. 3, the vehicle interior side surface of the inner outer joint surface portion 28 d of the front pillar inner portion 28 of the inner panel 17 is connected to the edge of the dash panel bent portion 40 of the dash panel 12 in the vehicle width direction. Joined by spot welding or the like in a state of overlapping from the outside.

  Further, in the state where the vehicle interior side surface of the inner outer joint surface portion 28d of the front pillar inner portion 28 and the edge portion in the vehicle width direction of the dash panel bent portion 40 of the dash panel 12 are joined, the convex portion forming surface portion 41 is formed. Is disposed at a position facing the inner convex portion 35 on the inner side in the vehicle width direction. Further, the dash panel convex portion 42 protrudes toward the inner top surface portion 36 of the inner convex portion 35. The inner side surface in the vehicle width direction of the inner top surface portion 36 of the inner convex portion 35 is joined to the dash panel top surface portion 45 of the dash panel convex portion 42 by spot welding or the like in a state of overlapping from the outer side in the vehicle width direction.

  As described above, the inner outer joint surface portion 28d of the front pillar inner portion 28 constitutes a front inner joint surface portion that is joined to the end portion of the dash panel 12 in the vehicle width direction from the outside of the vehicle compartment 8. . The inner central portion 28a of the front pillar inner portion 28 constitutes an inner central portion extending rearward from the inner joint surface portion. The inner inner joint surface portion 28b of the front pillar inner portion 28 constitutes a rear inner joint surface portion extending rearward from the inner central portion. Further, the outer outer joint surface portion 19e of the front pillar outer portion 19 constitutes a front outer joint surface portion that is joined to the front inner joint surface portion in a state of being overlapped from the outside of the passenger compartment 8. The outer central portion 19a of the front pillar outer portion 19 constitutes an outer central portion that extends rearward from the outer joint surface portion. The outer inner joint surface portion 19d of the front pillar outer portion 19 constitutes a rear outer joint surface portion that extends rearward from the outer central portion and is joined to the rear inner joint surface portion in an overlapping state from the vehicle width direction outer side. .

  According to the present embodiment, the door hinge mounting surface portion 26 is reinforced by the inner convex portion 35 and the dash panel convex portion 42. That is, the plate thickness of the door hinge mounting surface portion 26 is substantially the sum of the plate thickness of the inner top surface portion 36 of the inner convex portion 35 and the plate thickness of the dash panel top surface portion 45 of the dash panel convex portion 42. Increase in thickness. Therefore, the rigidity of the door hinge mounting surface portion 26 of the front pillar outer portion 19 can be increased by increasing the substantial thickness of the door hinge mounting surface portion 26.

  Moreover, since the inner convex part 35 and the dash panel convex part 42 are bent, the shape is not easily deformed by the force input to the door hinge mounting surface part 26. For this reason, the rigidity of the door hinge attachment surface part 26 reinforced by the inner convex part 35 and the dash panel convex part 42 can be improved.

  Further, when a force applied to the door is input to the door hinge mounting surface portion 26 of the outer panel 16 and is transmitted to the outer panel 16 via the door hinge mounting surface portion 26, the transmitted force is transmitted to the inner panel 17 via the inner convex portion 35. Is done. Further, the force transmitted to the inner panel 17 is transmitted to the dash panel 12 via the dash panel convex portion 42. That is, the force input to the door hinge mounting surface portion 26 is shared by the outer panel 16, the inner panel 17, and the dash panel 12. Thereby, the rigidity of a door hinge attachment surface part can further be improved.

  Therefore, the rigidity of the door hinge mounting surface portion 26 of the front pillar outer portion 19 can be sufficiently ensured without providing reinforcement separate from the outer panel 16 and the inner panel 17. Accordingly, since it is not necessary to fix the reinforcement separately from the outer panel 16 and the inner panel 17 to the inner side surface of the front pillar outer portion 19 by welding or the like, the number of parts and the number of assembly steps are reduced. For this reason, cost and vehicle weight can be reduced by reducing the number of parts. Moreover, assembly workability can be improved.

  Furthermore, a larger force can be shared by the outer panel 16, the inner panel 17 and the dash panel 12 as compared with the conventional structure in which the reinforcement is fixed to the outer panel 16. For this reason, in order to ensure the same rigidity as that of the door hinge mounting surface portion in the conventional structure, the thickness of the outer panel 16 and the inner panel 17 can be set smaller than the thickness of the outer panel and the inner panel in the conventional structure. As a result, the vehicle weight can be further reduced.

  Further, the inner convex portion 35 and the dash panel convex portion 42 protrude outward in the vehicle width direction, and the vehicle interior space is expanded. As a result, the degree of freedom in the layout of the vehicle interior is improved, such as storing electrical components in an enlarged space.

  As mentioned above, although embodiment which applied the invention made | formed by this inventor was described, this invention is not limited with the description and drawing which make a part of indication of invention by this embodiment.

  For example, a panel structure 4 as shown in FIG. 4 may be used. As shown in FIG. 4, an inner outer joint portion 28 d extending forward from the other end portion is provided at the other end portion of the inner central portion 28 a of the front pillar inner portion 28. The inner outer joint portion 28d is joined to the convex portion forming surface portion 41 of the dash panel 12 by spot welding or the like. Further, the outer outer joint surface portion 19e of the front pillar outer portion 19 is spot-welded in a state where it overlaps with the front end portion of the inner outer joint portion 28d and the edge portion in the vehicle width direction of the dash panel bent portion 40 from the outside of the vehicle compartment. And so on.

  Further, a panel structure 4 as shown in FIG. 5 may be used. As shown in FIG. 5, an outer outer joint portion 19e that bends forward from the outer outer bent portion 19c of the front pillar outer portion 19 is provided, and at the other end of the inner central portion 28a of the front pillar inner portion 28, An inner outer joint 28d extending forward from the other end is provided. The outer outer joint surface portion 19e is joined to the outer surface in the vehicle width direction of the inner outer joint portion 28d by spot welding or the like. Further, the inner side surface in the vehicle width direction of the inner outer joint portion 28d is joined to the convex portion forming surface portion 41 by spot welding or the like.

  Further, a panel structure 4 as shown in FIG. 6 may be used. As shown in FIG. 6, the inner panel 17 has an inner convex portion 35 that extends in the vertical direction at the inner central portion 28 a of the inner vertical portion 34. Further, the dash panel 12 has a convex portion forming surface portion 41 that is bent rearward from the end portion at the end portion of the dash panel bent portion 40 and extends in the vertical direction. It has the dash panel convex part 42 extended in an up-down direction.

  Further, as shown in FIG. 7, a floor panel convex portion 57 that protrudes outward in the vehicle width direction may be provided in front of both ends of the floor panel 14 in the vehicle width direction. The floor panel convex portion 57 has a substantially quadrangular frustum shape and has a substantially rectangular floor panel top surface portion 58 on the outer side in the vehicle width direction. Further, the floor panel convex portion 57 has a floor panel standing surface portion 59. The floor panel standing surface portion 59 extends from each side of the floor panel top surface portion 58 to the base end portion of the floor panel convex portion 57 while inclining inward in the vehicle width direction. When the side panel 10 is joined to the dash panel 12 and the floor panel 14, the floor panel convex portion 57 protrudes toward the inner top surface portion 36 of the inner convex portion 35 positioned below the inner vertical portion 34. The lower side of the inner top surface portion 36 of the inner convex portion 35 on the inner side surface in the vehicle width direction is joined to the floor panel top surface portion 58 of the floor panel convex portion 57 by spot welding or the like in a state of overlapping from the outer side in the vehicle width direction. Further, the upper side of the inner top surface portion 36 in the vehicle width direction inner surface is joined to the dash panel top surface portion 45 of the dash panel convex portion 42 by spot welding or the like in a state of overlapping from the vehicle width direction outer side. According to this configuration, when a force applied to the door is input to the door hinge mounting surface portion 26 of the outer panel 16 and transmitted to the outer panel 16 via the door hinge mounting surface portion 26, the transmitted force is transmitted via the inner convex portion 35. It is transmitted to the panel 17. The force transmitted to the inner panel 17 is transmitted to the dash panel 12 via the dash panel convex portion 42. Further, the force transmitted to the inner panel 17 is transmitted to the floor panel 14 via the floor panel convex portion 57. That is, the force input to the door hinge mounting surface portion 26 is shared by the outer panel 16, the inner panel 17, the dash panel 12 and the floor panel 14. Therefore, the rigidity of the door hinge mounting surface portion 26 of the outer panel 16 can be further increased.

  That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

  The present invention is widely applicable to a vehicle body panel structure having a door hinge mounting portion.

1: Vehicle 2: Cab 4: Panel structure 8: Vehicle compartment 10: Side panel 12: Dash panel 16: Outer panel 17: Inner panel 19: Front pillar outer portion 19a: Outer central portion (outer central portion) of the front pillar outer portion
19d: Outer inner joint surface portion of the front pillar outer portion (rear outer joint portion)
19e: outer outer joint surface portion of the front pillar outer portion (front outer joint portion)
23: Outer door opening 26: Door hinge mounting surface portion 28: Front pillar inner portion 28a: Inner central portion (inner central portion) of the front pillar inner portion
28b: Inner inner joint surface portion of the front pillar inner portion (rear inner joint portion)
28d: Inner outer joint surface part of the front pillar inner part (front inner joint part)
32: Inner door opening 35: Inner convex part 36: Inner top surface part 37: Inner standing surface part 39: Dash panel body 40: Dash panel bent part 41: Convex part forming surface part 42: Dash panel convex part 45: Dash panel top surface part 46 : Dash panel standing surface 50: Front pillar 51: Closed section 56: Door opening

Claims (1)

An inner panel having a front pillar inner portion extending vertically in the vicinity of the front corner of the passenger compartment;
An outer panel having a front pillar outer portion facing the front pillar inner portion and disposed on the outer side in the vehicle width direction of the inner panel;
A dash panel that stands along the vehicle width direction and partitions the front end of the vehicle compartment,
The front pillar inner portion includes a front inner joint surface portion that is joined to an end edge of the dash panel in the vehicle width direction from the outside of the vehicle compartment, and an inner central portion that extends rearward from the inner joint surface portion. And an inner joint surface portion on the rear side extending rearward from the inner central portion, and
The front pillar outer portion includes a front outer joint surface portion that is joined to the front inner joint surface portion from the outside of the vehicle compartment, an outer central portion that extends rearward from the outer joint surface portion, and the outer center A rear outer joint surface portion that extends rearward from the portion and is joined to the rear inner joint surface portion in a state of overlapping from the outside in the vehicle width direction,
In a state where the inner joint surface portion and the outer joint surface portion are joined, the inner central portion and the outer central portion are separated from each other to define a closed cross section, and the front pillar inner portion and the front pillar The outer part forms a front pillar that divides the front of the door opening,
The outer central portion includes a door hinge mounting surface portion that rotatably supports a door that opens and closes the door opening via a door hinge,
An inner convex portion protruding toward the door hinge mounting surface portion is bent and formed in the inner central portion,
The dash panel integrally has a convex portion forming surface portion that extends rearward from the end edge portion and faces the inner convex portion,
A dash panel convex portion that protrudes toward the inner convex portion is bent and formed on the convex forming surface portion,
The top surface portion of the inner convex portion is joined to the top surface portion of the dash panel convex portion in a state of overlapping from the vehicle width direction outside,
The door hinge mounting surface portion is joined to the top surface portion of the inner convex portion so as to overlap from the outside in the vehicle width direction.

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