JP5776963B2 - Floor panel - Google Patents

Description

  The present invention relates to a floor panel that defines a floor surface of a cabin of a cab-over type vehicle.

  Japanese Laid-Open Patent Publication No. 2000-318652 describes a floor panel in which a pair of main sills that serve to reinforce a cab of a vehicle, particularly a floor panel, are welded to the lower surface. The main sill is disposed at an interval in the vehicle width direction across the engine, and extends in the longitudinal direction of the vehicle body.

JP 2000-318652 A

  In the floor panel disclosed in Japanese Patent Laid-Open No. 2000-318652, the main sill is fixed to the lower surface by welding, so that the rigidity of the floor panel is ensured by the main sill.

  However, in the floor panel described in Japanese Patent Application Laid-Open No. 2000-318652, the main sill, which is a separate reinforcing member, must be fixed to the lower surface of the floor panel by welding in order to ensure the rigidity of the floor panel. There is a possibility that the number of assembly man-hours increases and the weight of the vehicle increases.

  Further, a space defined by the lower surface of the floor panel and the inner surface of the main sill having a substantially U-shaped cross section becomes a dead space and cannot be effectively used.

  Accordingly, the present invention provides a floor that can sufficiently secure the rigidity of the floor panel while effectively suppressing the increase in the number of parts, the number of assembly steps, and the weight of the vehicle, and effectively utilizing the space on the floor of the vehicle compartment. The purpose is to provide a panel.

In order to achieve the above object, the present invention provides a floor panel that forms a floor surface of a vehicle cabin, and includes a center floor panel portion, a pair of recesses, a pair of side floor panel portions, and a floor panel. And a convex portion . In the above vehicle, a door hinge is attached to the front pillar outer portion of the front pillar portion in which the front pillar outer portion on the outer side in the vehicle width direction and the front pillar inner portion on the inner side in the vehicle width form a closed cross section via a hinge. A surface portion is provided.

The center floor panel portion extends substantially from the front end to the rear end of the passenger compartment at the approximate center in the vehicle width direction. The pair of recesses includes a falling part that extends downward from the end of the center floor panel in the vehicle width direction, a flat part that extends from the lower end of the falling part to the outside in the vehicle width direction, and a flat part. Each of which has a rising portion that bends upward from the outer end in the vehicle width direction and extends from the front end to the rear end of the passenger compartment. The pair of side floor panels extend from the upper end of the rising portion so as to be bent outward in the vehicle width direction. The floor panel convex portion is bent and integrally formed with the front pillar inner portion, protrudes outward in the vehicle width direction, and overlaps and is joined from the inner side in the vehicle width direction to the inner hinge portion that is joined to the door hinge mounting surface portion.

  In the above configuration, since the pair of concave portions extending from the front end to the rear end of the floor panel are bent in the floor panel, the surface rigidity of the floor panel is secured by the concave portions. For this reason, it is not necessary to adhere a reinforcing member such as a main sill to the lower surface of the floor panel, thereby reducing the number of parts and the number of assembly steps. Therefore, the vehicle weight can be reduced and the assembly workability can be improved.

  In addition, the inner surface of the concave portion can be used as a housing portion for in-vehicle supplies such as an in-vehicle fire extinguisher and a jack handle, and the space on the floor surface of the passenger compartment can be effectively utilized.

  ADVANTAGE OF THE INVENTION According to this invention, the rigidity of a floor panel can fully be ensured, suppressing the increase in a number of parts, an assembly man-hour, and the weight of a vehicle, and the space of the floor surface of a compartment can be utilized effectively.

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 a disassembled perspective view of the side panel of FIG. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. It is the VI-VI sectional view taken on the line of FIG. It is the VII-VII sectional view taken on the line of FIG.

  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 39 is located below the cab 2. The cab 2 is supported by a cab mount 4 attached to the front end portion of the chassis frame 3 so as to be tiltable forward.

  The chassis frame 3 includes left and right main beams 5 extending in parallel along the front-rear direction, a plurality of cross members 6 and a cab mount 4. 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.

  The cab 2 is a substantially box-shaped body, and partitions the passenger 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 portion of the passenger compartment 8.

  The roof panel 9 is a substantially rectangular flat plate. Both ends of the roof panel 9 in the vehicle width direction are joined to the upper end of the side panel 10, and the rear end is joined to the upper end of the back panel 13.

  As shown in FIGS. 1 and 2, the side panel 10 has a door opening 15 formed in a substantially rectangular shape at the center, and further includes a front pillar portion 16, a rocker portion 17, a fender portion 18, and a roof. A side rail portion 19 and a rear pillar portion 20 are provided.

  The front pillar portion 16 includes an inclined portion 16 a that extends obliquely forward from the upper end and a vertical portion 16 b that extends from the lower end of the inclined portion 16 a in a vertical direction, and constitutes a front edge of the door opening 15. The rocker portion 17 extends backward from the lower end of the front pillar portion 16 (the lower end of the vertical portion 16 b), and constitutes a part of the lower edge of the door opening 15. The fender portion 18 extends in an arch shape from the rear end of the rocker portion 17. The lower end side of the fender portion 18 constitutes a wheel house that covers the front wheels from above. Further, the upper end side of the fender portion 18 constitutes a part of the lower edge of the door opening. The roof side rail portion 19 extends from the upper end of the front pillar portion 16 (the upper end of the inclined portion 16 a) so as to bend toward the rear of the vehicle, and defines the upper edge of the door opening 15. The rear pillar portion 20 connects the rear end of the fender portion 18 and the rear end of the roof side rail portion 19 to partition the rear edge of the door opening 15.

  Further, as shown in FIG. 3, the side panel 10 includes an outer panel 40 on the outer side in the vehicle width direction, and an inner panel 50 disposed to face the inner side in the vehicle width direction of the outer panel 40. The side panel 10 is configured such that the outer panel 40 overlaps the inner panel 50 from the outside in the vehicle width direction, and the respective outer edges are joined by spot welding or the like. The vertical portion 16 b of the front pillar portion 16 is configured by a front pillar outer vertical portion 41 of the outer panel 40 and a front pillar inner vertical portion 51 of the inner panel 50. Since the vehicle 1 of the present embodiment has the same structure on the left and right, in the following description, the left side of the vehicle 1 will be described, and the description on the right side of the vehicle will be omitted.

  The front pillar outer vertical part 41 extends in the vehicle width direction in front of the vehicle 1 and is connected to the front pillar inner vertical part 51 from an outer front joint part 42 and an outer front end part of the outer front joint part 42 in the vehicle width direction. It has an outer central portion 43 that bends and extends rearward, and an outer rear joint portion 44 (see FIG. 4) that extends inward in the vehicle width direction from the rear end of the outer central portion 43. A flange portion 44a (see FIG. 4) is formed at the inner rear end portion of the outer rear joint portion 44 so as to bend and extend rearward. Door hinge mounting surface portions 16c are provided at two locations on the outer side surface of the outer central portion 43 in the upper and lower directions. The door hinge mounting surface portion 16c rotatably supports a door (not shown) via a door hinge (not shown). Further, the door hinge mounting surface portion 16c has a bolt hole (not shown) into which a bolt for fixing the door hinge is screwed.

  The front pillar inner vertical portion 51 extends in the vehicle width direction in front of the vehicle 1 and is joined to the outer front joint portion 42 of the front pillar outer vertical portion 41, and the vehicle width of the front front joint portion 52. An inner central portion 53 that bends backward from the outer end portion in the direction, an inner rear joint portion 54 that extends rearward from the rear end of the inner central portion 53 and joins the outer rear joint portion 44 (see FIG. 4), Have Inner convex portions 55 projecting outward in the vehicle width direction are integrally bent at two locations above and below the inner central portion 53 by pressing or the like. The inner convex portion 55 has a substantially square frustum shape, and has a substantially rectangular inner top surface portion 55a on the outer side in the vehicle width direction. Moreover, the inner convex part 55 has the inner standing surface part 55b. The inner standing surface portion 55b extends from each side of the inner top surface portion 55a to the base end portion of the inner convex portion 55 while inclining inward in the vehicle width direction. The inner central portion 53 is formed with a substantially rectangular through hole 56 that penetrates the inner central portion 53 between the two upper and lower inner convex portions 55.

  When the outer panel 40 and the inner panel 50 are joined to form the side panel 10, as shown in FIG. 4, the outer front joint 42 of the front pillar outer vertical part 41 is the inner front joint 52 of the front pillar inner vertical part 51. Further, the flange portion 44 a of the outer rear joint portion 44 is joined to the inner rear joint portion 54 to constitute the front pillar portion 16. Further, the outer central portion 43 and the inner central portion 53 are separated from each other, and define a closed cross section 16 d inside the front pillar portion 16. In the closed cross section 16d, the inner convex portion 55 protrudes toward the door hinge mounting surface portion 16c of the outer panel 40. The inner surface in the vehicle width direction of the door hinge mounting surface portion 16c is joined by spot welding or the like in a state of overlapping the outer surface in the vehicle width direction of the inner top surface portion 55a of the inner convex portion 55 from the outer side in the vehicle width direction.

  Returning to FIG. 1, the dash panel 12 is a substantially rectangular plate-like body, and includes a dash panel main body 21, a dash panel bent part 22, a long hole 23, and a dash panel extension part 24. . These are integrally formed by pressing or the like.

  The dash panel body 21 extends along the vehicle width direction. The dash panel bent portion 22 extends obliquely backward from both ends of the dash panel main body 21. The long holes 23 are provided at two places on the upper left and right sides of the dash panel main body 21. The long hole 23 is closed by the front frame portion 11 when the dash panel 12 is joined to the front frame portion 11. Further, the dash panel extending portion 24 extends downward from two left and right portions of the lower end portion of the dash panel main body 21.

  The back panel 13 is a substantially rectangular plate. The back panel 13 has a back panel opening 25 into which a rear window glass is fitted at a substantially central portion. Further, the back panel 13 integrally has a back panel extending portion 26 extending downward from two left and right portions of the lower end portion.

  As shown in FIGS. 2 and 5 to 7, the floor panel 14 is a substantially rectangular plate-like body, and includes a center floor panel portion 27, a pair of left and right recesses 28, and a pair of left and right side floor panel portions 29. And have. These are integrally formed by pressing or the like. The upper surface of the floor panel 14 forms a floor surface 8 a of the vehicle compartment 8. 5-7, illustration of the protrusion part 37 of the side floor panel part mentioned later is abbreviate | omitted.

  The center floor panel portion 27 is formed at the center in the vehicle width direction of the passenger compartment 8 and extends from the front end of the passenger compartment 8 to the rear end, that is, from the front end to the rear end of the floor panel 14. The center floor panel portion 27 includes a center floor panel front portion 27a extending substantially horizontally from the front end of the floor panel 14 to the rear, and a center floor panel inclined portion extending obliquely upward from the rear end of the center floor panel front portion 27a. 27b, and a center floor panel rear portion 27c extending from the rear end of the center floor panel inclined portion 27b to the rear end of the floor panel 14 by bending substantially parallel to the center floor panel front portion 27a. An engine room 39 for accommodating an engine (not shown) is formed below the center floor panel 27 of the vehicle 1.

  The recesses 28 are formed in a pair with the center floor panel portion interposed therebetween. The recess 28 has a falling part 30, a flat part 31, and a rising part 32, and is formed in a U-shaped cross section. The falling portion is bent from the end of the center floor panel portion 27 in the vehicle width direction and extends obliquely downward and outward in the vehicle width direction. The flat portion 31 is bent outward from the lower end of the falling portion 30 in the vehicle width direction and extends substantially horizontally in the vehicle width direction. The rising portion 32 is bent from the end of the flat portion 31 on the outer side in the vehicle width direction and extends obliquely upward and obliquely outward in the vehicle width direction. Further, the recess 28 extends from the front end to the rear end of the passenger compartment 8, that is, from the front end to the rear end of the floor panel 14. The recess 28 integrally has a recess front end 33 at the front end and a recess rear end 34 at the rear end. The concave portion 28 includes a concave front portion 28a extending substantially horizontally from the front end of the floor panel 14 to the rear, a concave inclined portion 28b extending upward from the rear end of the concave front portion 28a, and a rear end of the concave inclined portion 28b. A recess rear portion 28c that bends and extends to the rear end of the floor panel 14 substantially parallel to the recess front portion 28a. The falling part 30 in the recessed part inclined part 28b is formed from the first falling part 30a extending downwardly from the end part of the center floor panel rear part 27c of the center floor panel part 27 and the lower end part of the first falling part 30a. And a second falling portion 30b that extends downwardly (see FIG. 6). The first falling portion 30b is inclined more gently than the second falling portion 30b. A joint portion (not shown) for joining to the cab mount 4 of the chassis frame 3 is provided on the lower surface of the flat portion 31 in the concave front portion 28a. The joint portion has a plurality of screw holes (not shown), and the cab 2 is fixed to the cab mount 4 when the screws are screwed into the screw holes (not shown) provided in the cab mount 4. The

  The side floor panel portions 29 are formed in a pair at both ends in the vehicle width direction of the bottom portion of the passenger compartment 8 with the center floor panel portion 27 and the pair of recesses 28 interposed therebetween. The side floor panel portion 29 extends from the upper end of the rising portion 32 of the recess 28 so as to be bent outward in the vehicle width direction. The side floor panel portion 29 includes a side floor panel front portion 29a extending substantially horizontally from the front end of the floor panel 14 to the rear, and a side floor panel inclined portion 29b extending obliquely upward from the rear end of the side floor panel front portion 29a. A side floor panel rear portion 29c that bends from the rear end of the side floor panel inclined portion 29b and extends to the rear end of the floor panel 14 substantially in parallel to the side floor panel front portion 29a. Further, the side floor panel portion 29 is a protruding portion of a ridge extending from the front end to the rear end of the side floor panel portion 29 over the side floor panel front portion 29a, the side floor panel inclined portion 29b, and the side floor panel rear portion 29c. Three 37 are provided at predetermined intervals. Further, a floor panel convex portion 38 protruding outward in the vehicle width direction is formed in front of the side floor panel front portion 29a on the outer side in the vehicle width direction. The floor panel convex portion 38 has a substantially quadrangular frustum shape and has a substantially rectangular floor panel convex portion top surface portion 38a on the outer side in the vehicle width direction. Moreover, the floor panel convex part 38 has the floor panel convex part standing surface part 38b. The floor panel convex portion standing surface portion 38b extends from each side of the floor panel convex portion top surface portion 38a to the base end portion of the floor panel convex portion 38 while being inclined inward in the vehicle width direction.

  As shown in FIG. 2, the lower end portion of the center floor panel inclined portion 27b is disposed in front of the lower end portions of the recessed portion inclined portion 28b and the side floor panel inclined portion 29b. Further, the upper end portion of the center floor panel inclined portion 27b is in front of the upper end portions of the recessed portion inclined portion 28b and the side floor panel inclined portion 29b, and the lower end portions of the recessed portion inclined portion 28b and the side floor panel inclined portion 29b and the vehicle front and rear. Arranged at substantially the same position in the direction.

  As shown in FIG. 5, the center floor panel front portion 27a and the side floor panel front portion 29a are formed to have the same height. Further, as shown in FIG. 7, the center floor panel rear portion 27c and the side floor panel rear portion 29c are formed to have the same height.

  Next, the joining aspect of the floor panel 14, the dash panel 12, the back panel 13, and the side panel 10 is demonstrated.

  As shown in FIG. 1, the floor panel 14 and the dash panel 12 have a front end portion of the floor panel 14 and a lower end portion of the dash panel 12 welded by spot welding or the like, and the dash panel extension portion 24 has a recess. It joins by welding to the recessed front end part 33 of 28 by spot welding etc. FIG.

  In the floor panel 14 and the back panel 12, the rear end portion of the floor panel 14 and the lower end portion of the back panel 12 are welded by spot welding or the like, and the back panel extending portion 26 is a recessed rear end portion of the recessed portion 28. 34 are joined by welding by spot welding or the like.

  As shown in FIGS. 1, 2, and 4, the floor panel 14 and the side panel 10 are arranged at the front pillar portion of the side panel 10 at the vehicle width direction outer end portion of the side floor panel portion 29 of the floor panel 14. The lower end portion of 16, the lower end portion of the rocker portion 17, the fender portion 18, and the rear pillar portion 20 are joined by being overlapped from the outside in the vehicle width direction and welded by spot welding or the like. Specifically, the side floor panel front portion 29a is the lower end portion of the front pillar portion 16 and the rocker portion 17, the side floor panel inclined portion 29b is the fender portion 18, and the side floor panel rear portion 29c is the lower end portion of the rear pillar portion 19. And are joined.

  When the floor panel 14 and the side panel 10 are joined, the floor panel convex portion 38 projects toward the inner panel convex portion 55 located below the vertical portion 16b of the front pillar portion 16, as shown in FIG. The inner panel convex portion 55 abuts below the top surface portion 55a from the inner side in the vehicle width direction and is joined by spot welding or the like.

  According to the present embodiment, since the concave portion 28 of the floor panel 14 is bent, the shape of the floor panel 14 is not easily deformed by the force input to the floor panel 14, and the rigidity of the floor panel 14 is reduced by the concave portion 28. Is secured. For this reason, it is not necessary to adhere a reinforcing member such as a main sill to the lower surface of the floor panel 14, and the number of parts and the number of assembly steps are reduced. Therefore, the vehicle weight can be reduced and the assembly workability can be improved.

  In addition, the inner surface of the recess 28 can be used, for example, as a housing portion for in-vehicle supplies such as an in-vehicle fire extinguisher or a jack handle, and the space on the floor surface 8a of the passenger compartment can be effectively utilized.

  Further, when a force applied to the door is input to the door hinge mounting surface portion 16c of the outer panel 40 of the side panel 10 and transmitted to the outer panel 40 via the door hinge mounting surface portion 16c, the inner panel 50 is connected to the inner panel 50 via the inner convex portion 55. The force transmitted to the inner panel 50 is transmitted to the floor panel 14 through the floor panel convex portion 38. That is, the input to the door hinge mounting surface portion 16c of the outer panel 40 can be shared and supported by the outer panel 40, the inner panel 50, and the floor panel 14. Therefore, the door hinge attachment surface portion 16c can be reinforced and the rigidity of the door hinge attachment surface portion 16c can be increased.

  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, the falling portion 30 of the concave portion 28 is bent from the end in the vehicle width direction of the center floor panel portion 27 and extends obliquely downward inward in the vehicle width direction, and the rising portion 32 is formed by the flat surface portion 31. The vehicle may be bent from the outer end in the vehicle width direction and extend obliquely upward inward in the vehicle width direction.

  Further, the falling portion 30 is bent from the end in the vehicle width direction of the center floor panel portion 27 and extends vertically downward, and the rising portion 32 is bent from the end of the flat portion 31 on the outer side in the vehicle width direction. Then, it may extend vertically upward.

  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 floor panels that divide a floor surface of a cabin of a cab-over type vehicle.

1: Vehicle 2: Cab 8: Cabin 8a: Floor 14: Floor panel 27: Center floor panel portion 27a: Center floor panel front portion 27b: Center floor panel inclined portion 27c: Center floor panel rear portion 28: Recess 28a: Concave front part 28b: Concave inclined part 28c: Concave rear part 29: Side floor panel part 29a: Side floor panel front part 29b: Side floor panel inclined part 29c: Side floor panel rear part 30: Falling part 31: Plane part 32 : Rise part 38: Floor panel convex part

Claims (1)

The front pillar outer portion of the front pillar portion in which the front pillar outer portion on the outer side in the vehicle width direction and the front pillar inner portion on the inner side in the vehicle width direction form a closed section is provided with a door hinge mounting surface portion that supports the door via a hinge. A floor panel that forms a floor of a vehicle cabin,
A center floor panel portion extending from the front end to the rear end of the vehicle compartment at substantially the center in the vehicle width direction of the vehicle compartment;
A falling part that bends and extends downward from an end in the vehicle width direction of the center floor panel part, a flat part that bends outward from the lower end of the falling part in the vehicle width direction, and a vehicle width of the flat part A pair of recessed portions each having a rising portion that bends upward from an end portion on the outer side in the direction and extending from the front end to the rear end of the vehicle compartment,
A pair of side floor panel portions that bend and extend outward in the vehicle width direction from the upper end of the rising portion;
A floor panel convex portion that protrudes outward in the vehicle width direction at the front of the side floor panel portion in the vehicle width direction outside ;
The floor panel convex portion is bent and integrally formed with the front pillar inner portion, protrudes outward in the vehicle width direction, and overlaps and is joined to the door hinge mounting surface portion from the inner side in the vehicle width direction. floor panel, characterized in that that.

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