JP5884295B2 - Body structure of vehicle with frame - Google Patents

Description

  The present invention relates to a body structure for a vehicle with a frame in which a body is disposed on a frame of the vehicle.

  A vehicle with a frame has a body disposed on the frame of the vehicle. As a body structure of such a vehicle with a frame, for example, there is one described in Patent Document 1.

  A body structure according to a conventional example will be described with reference to FIG.

  The body structure according to the conventional example shown in FIG. 4 is provided with a pair of left and right engine compartment modules 41 and a pair of left and right engine compartment modules 41 that are disposed at intervals in the vehicle width direction and constitute the front side portion of the body 40. A pair of left and right body side modules 42 that are coupled to the rear portion and constitute the rear side portion of the body 40, and a floor that constitutes the passenger compartment and loading platform of the body 40, and is disposed between the pair of left and right body side modules 42 A module 43 and a roof module 44 that spans between the upper portions of the pair of left and right body side modules 42 and constitutes the roof portion of the body 40 are provided.

  The engine compartment module 41 includes an engine compartment inner panel 45 extending in the vehicle front-rear direction and an engine compartment outer panel 46 disposed with a space provided outside the engine compartment inner panel 45 in the vehicle width direction. 47. That is, the engine compartment frame member 47 is a so-called frame member in which the engine compartment inner panel 45 and the engine compartment outer panel 46 form a closed cross section. A fender 48 is coupled to the engine compartment outer panel 46 by welding or the like.

  The body side module 42 includes a body side inner panel 49 that extends in the vehicle front-rear direction, and a body side outer panel 50 that is disposed with a space provided outside the body side inner panel 49 in the vehicle width direction. 51. That is, the body side skeleton member 51 is a so-called skeleton member in which the body side inner panel 49 and the body side outer panel 50 form a closed cross section.

  The floor module 43 includes a cowl panel 52 extending substantially horizontally from the front end of the floor module 43 toward the rear of the vehicle, a dash panel 53 extending from the rear end of the cowl panel 52 to the rear of the vehicle and inclined downward in the vehicle, and a dash panel. A front floor panel 54 extending substantially horizontally from the rear end of the vehicle 53 in the vehicle rearward direction and defining a floor surface of the passenger cabin; A rear shelf panel 55 that bends in the middle and extends substantially horizontally in the rearward direction of the vehicle; a rear floor panel 56 that extends substantially horizontally in the rearward direction of the vehicle from the rear end of the front floor panel 54; From a back panel 57 extending from the rear end of the panel 56 to the rear end of the floor module 43 so as to incline upward in the vehicle rearward direction It is configured.

  In the body structure according to the conventional example shown in FIG. 4, the floor module 43 is attached to the cowl panel 52, a cowl panel reinforcing member 58 having a substantially L-shaped cross section that forms a closed section with the cowl panel 52, and a dash A dash panel reinforcing member 59 having a substantially U-shaped cross-section that is attached to the panel 53 and forms a closed cross-section with the dash panel 53, and a vehicle front-rear direction intermediate portion of the front floor panel 54. A front floor panel reinforcing member 60 having a substantially U-shaped cross section that forms a closed cross section with the vehicle front-rear direction middle section and a rear cross section between the rear shelf panel 55 and the rear shelf panel 55. A rear shelf panel reinforcing member 61 having a substantially U-shaped cross section and a rear portion of the back panel 57. Further and a back panel reinforcement member 62 of substantially U-shaped section constituting a closed cross section between the rear 57.

  The roof module 44 is mainly composed of a roof panel 63 extending in the vehicle front-rear direction. In the body structure according to the conventional example shown in FIG. 4, the roof module 44 is attached to the front portion of the roof panel 63, and has a substantially U-shaped cross section that forms a closed cross section with the front portion of the roof panel 63. A second roof panel reinforcing member having a substantially U-shaped cross section that is attached to the roof panel reinforcing member 64 and the vehicle longitudinal direction intermediate portion of the roof panel 63 and forms a closed cross section between the roof panel 63 and the vehicle longitudinal direction intermediate portion. 65 and a third roof panel reinforcing member 66 having a substantially U-shaped cross section that is attached to the rear portion of the roof panel 63 and forms a closed cross section with the rear portion of the roof panel 63.

  In the body structure according to the conventional example shown in FIG. 4, the engine compartment module 41, the body side module 42, the floor module 43 and the roof module 44 are joined together by welding to constitute the body 40.

JP 2009-40316 A

  In the body structure according to the conventional example shown in FIG. 4, the skeleton portion constituted by the closed cross section has high rigidity, but the flat plate portion having no closed cross section has only low rigidity. For this reason, it is difficult to ensure high rigidity as a whole body. Although it is conceivable to increase the rigidity of the entire body by increasing the thickness of each panel, each reinforcing member, etc., such a method causes an increase in the weight of the body.

  Accordingly, an object of the present invention is to sufficiently ensure the rigidity of the entire body without causing an increase in the weight of the body.

  In order to achieve the above-mentioned object, the present invention provides a vehicle body structure with a frame in which a body is disposed on a frame of the vehicle, and is disposed at intervals in the vehicle width direction. A pair of body side modules constituting a part, a front floor module disposed between the pair of body side modules and constituting a passenger compartment of the body, and coupled to a rear part of the front floor module; The body side module includes a body side inner panel extending in the vehicle front-rear direction, a space provided outside the body side inner panel in the vehicle width direction, and the body side inner panel. Body-side skeleton member comprising a body-side outer panel that defines a closed cross-section with The front floor module has a front floor inner panel extending in the vehicle front-rear direction, a space provided in the vehicle lower direction of the front floor inner panel, and a closed cross section between the front floor inner panel and the front floor inner panel. The rear floor module includes a rear floor inner panel extending in the vehicle front-rear direction and a space below the rear floor inner panel in the vehicle direction. And a rear floor skeleton member formed of a rear floor outer panel defining a closed cross section with the rear floor inner panel.

  The front floor outer panel may be provided with a protruding portion that is provided so as to protrude from the lower surface of the front floor inner panel and whose tip is coupled to the lower surface of the front floor inner panel.

  A glass roof constituting a portion from the front window portion of the body through the roof portion to the rear window portion may be attached to the upper portion of the body side module.

  According to the present invention, there is an excellent effect that the rigidity of the entire body can be sufficiently ensured without increasing the weight of the body.

1 is a schematic perspective view of a vehicle with a frame to which a body structure according to an embodiment of the present invention is applied. 1 is an exploded perspective view of a body structure according to an embodiment of the present invention. (A) is typical sectional drawing which shows the AA line cross section of FIG. 2, (b) is typical sectional drawing which shows the BB line cross section of FIG. 2, (c) is FIG. It is typical sectional drawing which shows the CC line cross section of, and (d) is typical sectional drawing which shows the DD line cross section of FIG. It is a disassembled perspective view of the body structure which concerns on a prior art example.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, a vehicle with a frame (hereinafter referred to as a vehicle) 10 to which the body structure according to the present embodiment is applied has a structure in which a body 12 is disposed on a frame 11 (see FIG. 3A). It has become. In FIG. 1, the arrow FR indicates the vehicle front direction, and the arrow UP indicates the vehicle upward direction.

  The frame 11 is disposed between the pair of left and right side members 13 (see FIG. 3A), which is disposed at intervals in the vehicle width direction and extends in the vehicle front-rear direction. It is a so-called ladder frame mainly composed of a plurality of cross members (not shown) provided. The frame 11 is attached with a front bumper module 14 having a front bumper and the like, and a rear bumper module (not shown) having a rear bumper and the like. Furthermore, the body 12 is disposed on the frame 11 via a total of four body mounts 15 (see FIG. 3A) (two on the vehicle front side and two on the vehicle rear side).

  As shown in FIGS. 2 and 3, the body structure according to the present embodiment includes a pair of left and right body side modules 16 that are disposed at intervals in the vehicle width direction and that constitute the side portion of the body 12, and a pair of left and right bodies. The front floor module 17 that is disposed between the body side modules 16 and constitutes the passenger compartment of the body 12, and the rear floor module 18 that is coupled to the rear portion of the front floor module 17 and constitutes the loading platform of the body 12. .

  The body side module 16 includes a body side inner panel 19 that extends in the vehicle front-rear direction, and a body side outer panel 20 that is disposed with a space provided outside the body side inner panel 19 in the vehicle width direction. 21. That is, the body side skeleton member 21 is a so-called skeleton member in which the body side inner panel 19 and the body side outer panel 20 form a closed cross section.

  The body side inner panel 19 is obtained by integrating the engine compartment inner panel 45 and the body side inner panel 49 in the body structure according to the conventional example shown in FIG. That is, the body side inner panel 19 extends in the vehicle rearward direction from the front end to the rear end of the body side module 16.

  The body side outer panel 20 is obtained by integrating the engine compartment outer panel 46 and the body side outer panel 50 in the body structure according to the conventional example shown in FIG. That is, the body side outer panel 20 extends in the vehicle rearward direction from the front end to the rear end of the body side module 16. A fender 22 is joined to the body side outer panel 20 by welding. The body side outer panel 20 and the fender 22 may be coupled using a bolt or the like.

  In the present embodiment, the thicknesses of the body side inner panel 19 and the body side outer panel 20 are made equal to the thicknesses of the body side inner panel 49 and the body side outer panel 50 in the body structure according to the conventional example shown in FIG. It is set.

  In this embodiment, the body side skeleton member 21 is configured by joining the body side inner panel 19 and the body side outer panel 20 by welding. The body side inner panel 19 and the body side outer panel 20 may be coupled using bolts or the like.

  The front floor module 17 includes a front floor inner panel (front floor upper panel) 23 extending in the vehicle front-rear direction, and a front floor outer panel (front floor lower panel) disposed with a space below the front floor inner panel 23 in the vehicle. 24 and a front floor skeleton member 25. That is, the front floor skeleton member 25 is a so-called skeleton member in which the front floor inner panel 23 and the front floor outer panel 24 form a closed cross section.

  The front floor inner panel 23 is obtained by integrating a cowl panel 52, a dash panel 53, a front floor panel 54, and a rear shelf panel 55 in the body structure according to the conventional example shown in FIG. That is, the front floor inner panel 23 is inclined in the vehicle downward direction from the rear end of the cowl panel portion 23a to the vehicle rearward direction from the front end of the front floor inner panel 23 and extending substantially horizontally in the vehicle rearward direction. A dash panel portion 23b that extends, a front floor panel portion 23c that extends substantially horizontally from the rear end of the dash panel portion 23b toward the rear of the vehicle, and that defines a floor surface of the passenger compartment, and a rear vehicle from the rear end of the front floor panel portion 23c. A rear shelf panel portion 23d that extends in the vehicle upward direction and is bent in the middle and extends substantially horizontally to the rear end of the front floor inner panel 23 in the vehicle rear direction.

  The front floor outer panel 24 includes a first portion 24a extending from the front end of the front floor outer panel 24 so as to incline downward in the vehicle rearward direction, and a second portion extending substantially horizontally from the rear end of the first portion 24a toward the vehicle rearward direction. The portion 24b and a third portion 24c extending from the rear end of the second portion 24b to the rear end of the front floor outer panel 24 so as to incline in the vehicle rearward direction are integrally provided.

  In order to increase the rigidity of the front floor panel portion 23c of the front floor inner panel 23 in which a seat (not shown) is disposed on the upper surface, the second portion 24b of the front floor outer panel 24 includes a front floor of the front floor inner panel 23. A plurality of projecting portions 26 are provided opposite to the lower surface of the panel portion 23 c, and the tip of each projecting portion 26 is coupled to the lower surface of the front floor panel portion 23 c in the front floor inner panel 23. In the present embodiment, each protrusion 26 is formed integrally with the front floor outer panel 24 by partially inflating the second portion 24 b of the front floor outer panel 24 by press molding or the like. Furthermore, in this embodiment, each protrusion part 26 is formed in the truncated quadrangular pyramid shape, and the front-end | tip of each protrusion part 26 is couple | bonded with the lower surface of the front floor panel part 23c in the front floor inner panel 23 by welding. . In addition, each protrusion part 26 may be formed in the truncated cone shape etc., and each protrusion part 26 may be couple | bonded with the lower surface of the front floor panel part 23c in the front floor inner panel 23 using a volt | bolt etc. .

  In the present embodiment, a luggage compartment 27 is defined in the space between the rear shelf panel portion 23 d of the front floor inner panel 23 and the third portion 24 c of the front floor outer panel 24, and the front floor inner panel 23 An opening (through hole) 28 that forms an entrance / exit of the luggage compartment 27 is formed through the rear shelf panel portion 23d. Moreover, in this embodiment, the opening 28 which comprises the entrance / exit of the luggage compartment 27 is opened and closed by the backrest of the tiltable sheet | seat (not shown).

  In the present embodiment, the thicknesses of the front floor inner panel 23 and the front floor outer panel 24 are set to be equal to those of the cowl panel 52, the dash panel 53, the front floor panel 54, and the rear shelf panel 55 in the body structure according to the conventional example shown in FIG. The thickness is set to about 60% of the thickness.

  In this embodiment, the front floor inner panel 23 and the front floor outer panel 24 are joined together by welding to constitute the front floor skeleton member 25. The front floor inner panel 23 and the front floor outer panel 24 may be coupled using bolts or the like.

  The rear floor module 18 includes a rear floor inner panel (rear floor upper panel) 29 extending in the vehicle front-rear direction, and a rear floor outer panel (rear floor lower panel) 30 disposed with a space below the rear floor inner panel 29 in the vehicle. A rear floor skeleton member 31 is provided. That is, the rear floor skeleton member 31 is a so-called skeleton member in which the rear floor inner panel 29 and the rear floor outer panel 30 form a closed cross section.

  The rear floor inner panel 29 is obtained by integrating the rear floor panel 56 and the back panel 57 in the body structure according to the conventional example shown in FIG. That is, the rear floor inner panel 29 extends substantially horizontally from the rear surface of the third portion 24c of the front floor outer panel 24 in the rearward direction of the vehicle, and defines the floor surface of the cargo bed, and the rear end of the rear floor panel portion 29a. And a back panel portion 29b that extends in the vehicle rearward direction and inclines upward in the vehicle direction, and is bent in the middle and extends substantially horizontally in the vehicle rearward direction to the rear end of the rear floor inner panel 29.

  The rear floor outer panel 30 includes a first portion 30a extending substantially horizontally from the rear surface of the third portion 24c of the front floor outer panel 24 in the vehicle rearward direction, and the vehicle rearward direction from the rear end of the first portion 30a to the rear end of the rear floor outer panel 30. And a second portion 30b extending obliquely in the vehicle upward direction.

  In this embodiment, the plate thickness of the rear floor inner panel 29 and the rear floor outer panel 30 is set to a thickness of about 60% of the plate thickness of the rear floor panel 56 and the back panel 57 in the body structure according to the conventional example shown in FIG. Yes.

  In this embodiment, the rear floor inner panel 29 and the rear floor outer panel 30 are joined together by welding to constitute the rear floor skeleton member 31. Note that the rear floor inner panel 29 and the rear floor outer panel 30 may be coupled using bolts or the like.

  In the present embodiment, the body 12 is configured by joining the body side module 16, the front floor module 17, and the rear floor module 18 by welding. The body side module 16, the front floor module 17, and the rear floor module 18 may be coupled using bolts or the like.

  In the present embodiment, a glass roof 32 constituting a part from the front window portion of the body 12 through the roof portion to the rear window portion is attached to the upper portion of the body side module 16 (see FIG. 1). That is, in the body structure according to the present embodiment, the roof panel 63 (roof module 44) according to the conventional example shown in FIG.

  The operation of the present embodiment having the above configuration will be described.

  In the body structure according to the conventional example shown in FIG. 4, the pair of left and right body side modules 42 (body side skeleton members 51) are so-called skeleton members having a closed cross section, and the rigidity thereof is the body side module 16 of the present embodiment. It is equivalent to (body-side skeleton member 21). However, in the body structure according to the conventional example shown in FIG. 4, the portion (floor module 43, roof module 44) that connects between the pair of left and right body side modules 42 has a skeleton portion formed by a closed section and a closed section. It consists of a combination with a flat plate part that does not have. For this reason, the rigidity of the pair of left and right body side modules 42 cannot be reliably transmitted depending on the floor module 43 and the roof module 44.

  On the other hand, in the body structure according to the present embodiment, a front floor module 17 (front floor skeleton member 25) and a rear floor module, which are so-called skeleton members configured with a closed cross section, are formed between the pair of left and right body side modules 16. 18 (rear floor frame member 31). That is, the front floor module 17 has a front floor skeleton member 25 composed of two upper and lower front floor inner panels 23 and a front floor outer panel 24 that are disposed with a space in the vehicle vertical direction. The rear floor module 18 includes a rear floor skeleton member 31 composed of two upper and lower rear floor inner panels 29 and a rear floor outer panel 30 that are disposed with a space provided in the vehicle vertical direction. The rigidity of the pair of left and right body side modules 16 is reliably transmitted by the front floor frame member 25 and the rear floor frame member 31, and the rigidity of the entire body 12 is dramatically improved. Therefore, according to the body structure according to the present embodiment, it is possible to sufficiently ensure the rigidity of the body 12 as a whole.

  As a result of creating and verifying the body structure analysis model according to the present embodiment shown in FIG. 2 and the body structure analysis model according to the conventional example shown in FIG. 4, the following effect (1) was confirmed.

  (1) According to the body structure according to the present embodiment shown in FIG. 2, the rigidity (torsional rigidity) equal to or higher than that of the body structure according to the conventional example shown in FIG. 4 is secured, and the body according to the conventional example shown in FIG. Compared with the structure, the weight could be reduced by 42.7%.

  That is, according to the body structure according to the present embodiment, the rigidity of the entire body 12 can be sufficiently ensured without increasing the weight of the body 12.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various other embodiments can be adopted.

10 Vehicle (vehicle with frame)
11 Frame 12 Body 16 Body side module 17 Front floor module 18 Rear floor module 19 Body side inner panel 20 Body side outer panel 21 Body side frame member 23 Front floor inner panel 24 Front floor outer panel 25 Front floor frame member 26 Protruding part 29 Rear floor inner panel 30 Rear floor outer panel 31 Rear floor frame member 32 Glass roof

Claims (2)

A rudder frame of a vehicle composed of a pair of left and right side members extending in the front-rear direction of the vehicle, and a plurality of cross members disposed between the side members;
A pair of body side modules disposed at intervals in the vehicle width direction and constituting a side portion of the body; and a front floor module disposed between the pair of body side modules and constituting a passenger compartment of the body; The rear floor module coupled to the rear portion of the front floor module and constituting the loading platform of the body, and a body including a fender provided in the pair of body side modules,
It said body is a body structure of a frame with a vehicle that will be placed on the ladder frame,
The body side module is provided with a body side inner panel extending in the vehicle front-rear direction and a space provided outside the body side inner panel in the vehicle width direction, and a closed cross section is formed between the body side inner panel and the body side inner panel. A body side skeleton member composed of a body side outer panel
The front floor module is provided with a front floor inner panel extending in the vehicle front-rear direction and a space provided in the vehicle lower direction of the front floor inner panel and defining a closed cross section with the front floor inner panel. A front floor skeleton member composed of a front floor outer panel;
The rear floor module includes a rear floor inner panel extending in the vehicle front-rear direction, and a rear floor outer panel disposed with a space in the vehicle lower direction of the rear floor inner panel and defining a closed cross section with the rear floor inner panel. Having a configured rear floor skeleton member;
The pair of body side skeleton members are joined by the front floor skeleton member and the rear floor skeleton member ,
The front floor inner panel includes a cowl panel portion that extends horizontally from the front end to the rear, a dash panel portion that extends downwardly from the rear end of the cowl panel portion, and a rear portion from the rear end of the dash panel portion. A front floor panel portion extending horizontally and defining a floor surface of a passenger compartment, and a rear shelf panel extending obliquely upward and rearward from the rear end of the front floor panel portion, and bent in the middle and horizontally extending rearward With the part integrally,
The front floor outer panel includes a first portion extending downward and inclined backward from a front end of the cowl panel portion, a second portion extending horizontally rearward from the rear end of the first portion, and a rear portion of the second portion. A third portion extending upward and inclined backward from the end to the rear end of the rear shelf panel portion;
The rear floor inner panel extends rearward from the rear surface of the third portion of the front floor outer panel, and extends obliquely upward and rearward from the rear floor panel portion defining the floor surface of the cargo bed and the rear end of the rear floor panel portion. In addition, it has a back panel portion that is bent in the middle and extends horizontally backward,
The rear floor outer panel includes a rear floor outer panel first portion horizontally extending rearward from the rear surface of the third portion of the front floor outer panel, and a rear floor outer panel second extending obliquely upward from the rear end of the rear floor outer panel first portion. A body structure for a vehicle with a frame, characterized by comprising a part integrally . The frame according to claim 1, wherein the front floor outer panel is provided with a protruding portion that is provided to protrude to face the lower surface of the front floor inner panel and whose tip is coupled to the lower surface of the front floor inner panel. Vehicle body structure.

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