JP2013244814A - Vehicle cargo deck structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a vehicle cargo deck structure capable of reducing air resistance.SOLUTION: An inclined part 26 and a projecting part 28 are continuously provided on an upper part 24A of an outer face 24 in a side panel 20. The inclined part 26 inclines inward in a vehicle width direction as extending towards a vehicle upper part, and the projecting part 28 projects outward in the vehicle width direction beyond an upper edge part 26A of the inclined part 26. With this, traveling wind taken inward in the vehicle width direction by the inclined part 26 is guided outward in the vehicle width direction by the projecting part 28. With this, during vehicle traveling, traveling wind can be suppressed or prevented from flowing in a deck 14.

Description

  The present invention relates to a vehicle bed structure such as a pickup truck.

  Patent Document 1 discloses a technique for reducing air resistance by blocking a traveling wind that passes through an upper surface of a cabin of a pickup truck, collides with a rear tailgate (rear panel), and flows backward to the front of the vehicle by a rectifying plate provided in the loading platform. Is disclosed.

JP 2009-287333 A

  However, in this prior art, when the traveling wind passing through the side of the vehicle flows into the cargo bed, it may collide with the current plate, and in this case, the air resistance increases.

  An object of the present invention is to obtain a vehicle bed structure that can reduce the air resistance in consideration of the above facts.

  The vehicle carrier structure according to claim 1 constitutes a part of a box-like carrier, a pair of side panels arranged at both ends in the vehicle width direction and extending along the vehicle front-rear direction, and the side panel A base portion extending along the vehicle front-rear direction and the vehicle up-down direction, and provided on the vehicle upper side of the base portion continuously from the base portion, from the upper portion of the base in the vehicle vertical direction And a projecting portion projecting outward in the vehicle width direction.

  In the vehicle bed structure according to claim 1, in the box-shaped bed, side panels are respectively extended along the vehicle front-rear direction at both ends in the vehicle width direction. On the vehicle width direction outer side (outer side surface) of the side panel, a base portion is provided at an upper portion in the vehicle vertical direction, and the base portion extends along the vehicle front-rear direction and the vehicle vertical direction. An overhang portion is formed on the vehicle upper side of the base portion so as to be continuous with the base portion, and the overhang portion projects outward in the vehicle width direction from the upper portion of the base in the vehicle vertical direction.

  As described above, the base and the overhanging portion are continuously provided on the upper portion of the outer side surface of the side panel, so that the air around the base portion clinging to the outer side surface of the side panel is guided to the outside in the vehicle width direction through the overhanging portion. Will be. Thereby, inflow of the traveling wind into the cargo bed during traveling of the vehicle is suppressed or prevented.

  That is, an angle change point can be formed by providing an abrupt angle change from the base portion to the overhang portion at the upper portion of the outer surface of the side panel. Thereby, a small vortex is generated at the angle change point, and the air (running wind) clinging to the outer surface of the side panel can be peeled off from the side panel. Accordingly, it is possible to suppress or prevent inflow of traveling wind into the cargo bed during traveling of the vehicle.

  The vehicle bed structure according to claim 2 is the vehicle bed structure according to claim 1, wherein the overhanging portion is formed along the vehicle width direction when viewed from the rear of the vehicle, and the traveling wind is generated at an outer edge portion in the vehicle width direction. A first peeling surface to be peeled and a second peeling surface that is formed along the vehicle vertical direction when viewed from the rear of the vehicle and peels the traveling wind at the upper edge of the vehicle vertical direction.

  In the vehicle bed structure according to claim 2, the overhanging portion includes a first peeling surface and a second peeling surface, and the first peeling surface is formed along the vehicle width direction when viewed from the back of the vehicle. The traveling wind is peeled off from the side panel at the outer edge in the width direction. On the other hand, the second peeling surface is formed along the vehicle vertical direction when viewed from the rear of the vehicle, and the traveling wind is peeled from the side panel at the upper edge of the vehicle vertical direction.

  Since the base, the first peeling surface, and the second peeling surface are formed on different planes, they have a predetermined angle between each other. For this reason, small vortices are generated due to angular changes in the movement of air between different planes. As a result, the air around the base around the outside surface of the side panel is guided to the outside in the vehicle width direction by the first peeling surface, and a small vortex is generated at the outer edge portion in the vehicle width direction and peeled off from the side panel. Is done. Further, the traveling wind guided upward in the vehicle vertical direction by the second peeling surface generates a small vortex at the upper edge of the vehicle vertical direction and is peeled off from the side panel.

  A vehicle bed structure according to a third aspect is the vehicle bed structure according to the second aspect, wherein the first peeling surface is an inclined surface that is inclined outward in the vehicle width direction toward the upper side of the vehicle.

  In the vehicle bed structure according to claim 3, the first separation surface is an inclined surface that is inclined outward in the vehicle width direction toward the upper side of the vehicle, and therefore is inclined in a direction opposite to the inclination direction of the inclined surface at the base portion. Thus, an abrupt angle change can be obtained at the upper part of the outer surface of the side panel.

  The vehicle bed structure according to claim 4 is the vehicle bed structure according to claim 2 or 3, wherein the second peeling surface is a vertical surface extending along the vehicle vertical direction.

  In the vehicle bed structure according to claim 4, the second peeling surface is a vertical surface extending along the vehicle vertical direction, and with respect to the first peeling surface that inclines outward in the vehicle width direction toward the upper side of the vehicle. And a sharp angle change can be obtained.

  As described above, the vehicle bed structure according to the first aspect of the present invention has an excellent effect that air resistance can be reduced.

  The vehicle bed structure according to the invention described in claim 2 has an excellent effect that a small vortex can be generated by an angle change in the movement of air between different planes, and the air can be peeled off from the side panel.

  The vehicle bed structure according to the invention described in claim 3 has an excellent effect that it is possible to obtain an abrupt angle change from the base portion to the first peeling surface and to peel air from the side panel.

  The vehicle carrier structure according to the invention described in claim 4 is capable of obtaining an abrupt angle change from the first peeling surface to the second peeling surface and capable of peeling air from the side panel. Have

It is the perspective view which looked at the deck with which the vehicle carrier structure concerning this Embodiment was applied from the diagonally upper direction behind the vehicle. It is a principal part expanded sectional view which shows the state cut | disconnected along the 2-2 line of FIG. 1 which expanded the principal part of the deck to which the vehicle carrier structure which concerns on this Embodiment was applied. It is explanatory drawing for demonstrating the effect | action of the vehicle carrier structure which concerns on this Embodiment, and is the rear view which looked at the deck from the vehicle back. It is explanatory drawing for demonstrating the effect | action of the vehicle carrier structure which concerns on this Embodiment, and is the rear view which looked at the deck from the vehicle back. (A) is a principal part expanded sectional view corresponding to FIG. 2 which shows the modification (1) of the deck to which the vehicle bed structure concerning this Embodiment was applied, (B), (C) is ( It is a modification of A). (A) is a principal part expanded sectional view corresponding to FIG. 2 which shows the modification (2) of the deck to which the vehicle bed structure concerning this Embodiment was applied, (B) is a modification of (A). It is. (A) is a principal part expanded sectional view corresponding to FIG. 2 which shows the modification (3) of the deck to which the vehicle bed structure concerning this Embodiment was applied, (B), (C) is ( It is a modification of A).

  Hereinafter, a vehicle carrier structure according to an embodiment of the present invention will be described with reference to the drawings. It should be noted that an arrow FR appropriately shown in each drawing indicates a front side in the vehicle front-rear direction, an arrow UP indicates an upper side in the vehicle vertical direction, and an arrow W indicates a vehicle width direction.

(Structure of vehicle carrier structure)
First, the configuration of the vehicle bed structure according to the present embodiment will be described. FIG. 1 shows a small truck vehicle 10 such as a pickup truck provided with a loading platform (deck) 14 on the rear side of the cabin 12. The deck 14 has a box shape, and a front panel 16 is provided at the front portion of the deck 14 along the vehicle front-rear direction, and a rear panel 18 is provided at the rear portion. Further, side panels 20 are provided on both sides of the deck 14 in the vehicle width direction.

  Here, the vehicle width direction inner side (inner surface 22) of the side panel 20 is formed substantially vertically along the vehicle vertical direction. On the other hand, the vehicle width direction outer side (outer surface 24) of the side panel 20 has a curved shape that swells outward in the vehicle width direction, and is the upper portion of the outer surface 24 in the vehicle vertical direction (hereinafter simply referred to as “upper portion”). 24A, an inclined portion 26 as a base extends along the vehicle front-rear direction and the vehicle vertical direction. The inclined portion 26 is inclined inward in the vehicle width direction as it goes upward of the vehicle. Further, the upper portion 24A of the outer surface 24 of the side panel 20 is provided on the vehicle upper side of the inclined portion 26 continuously with the inclined portion 26, and the upper edge portion of the inclined portion 26 in the vehicle vertical direction (hereinafter simply referred to as “ An overhanging portion 28 that protrudes outward in the vehicle width direction from 26A) is provided.

  For example, as illustrated in FIG. 2, the overhang portion 28 includes an inclined surface 28 </ b> A as a first peeling surface connected to the upper edge portion 26 </ b> A of the inclined portion 26. The upper edge portion 26A and the inclined surface 28A of the inclined portion 26 are continuously formed with an arc surface 27 that is recessed inward in the vehicle width direction. The inclined surface 28A is inclined outward in the vehicle width direction as it goes upward in the vehicle. The upper surface 28A1 of the inclined surface 28A is connected to the inclined surface 28A and is a vertical surface as a second separation surface formed along the vehicle vertical direction so as to be substantially parallel to the inner surface 22 of the side panel 20. 28B is provided. The vertical surface 28B extends to the upper end surface 20A of the side panel 20 and is connected to the upper end surface 20A. The upper end surface 20A is formed substantially horizontally along the vehicle width direction.

(Operation / effect of vehicle bed structure)
Next, functions and effects of the vehicle bed structure according to the present embodiment will be described. For example, although not shown, when traveling wind flows into the deck 14 during traveling of the vehicle 10 shown in FIG. 1 and the traveling wind hits the rear panel 18 of the deck 14, the rear panel 18 includes the vehicle 10. A force directed in the direction opposite to the direction of travel is applied. As a result, the air resistance of the vehicle 10 increases, and the fuel efficiency may deteriorate.

  Further, when traveling wind flows into the deck 14 while the vehicle 10 is traveling, air is separated from the side panel 20 by the inner side surface 22 of the side panel 20 of the deck 14. A vortex is formed. When the vortex is large, the side panel 20 may be pushed outward in the vehicle width direction. In this case, the vehicle 10 swings to the left and right, the behavior of the vehicle 10 is not stable, and the steering stability is deteriorated. In addition, vibration is generated in the vehicle 10 due to the vehicle 10 swinging left and right. However, when traveling wind flows into the deck 14, the amplitude of the vibration is amplified and riding comfort is deteriorated.

  However, in this embodiment, as shown in FIGS. 1 and 2, the inclined portion 26 and the overhang portion 28 are continuously provided on the upper portion 24 </ b> A of the outer surface 24 of the side panel 20. The inclined portion 26 is inclined inward in the vehicle width direction toward the upper side of the vehicle, and the overhang portion 28 protrudes outward in the vehicle width direction from the upper edge portion 26A of the inclined portion 26.

  As described above, the inclined portion 26 and the overhanging portion 28 are continuously provided on the upper portion 24A of the outer side surface 24 of the side panel 20, so that the inclined portion 26 is taken in the vehicle width direction inner side on the outer side surface 24 of the side panel 20. The traveling wind (arrow A) is guided outward in the vehicle width direction by the overhanging portion 28. Thereby, inflow of the traveling wind into the deck 14 can be suppressed or prevented during traveling of the vehicle.

  Further, the overhanging portion 28 is connected to the upper edge portion 26A of the inclined portion 26 and is inclined to the vehicle width direction outer side as it goes upward of the vehicle, and is connected to the upper edge portion 28A1 of the inclined surface 28A. And a vertical surface 28 </ b> B formed along the vehicle vertical direction so as to be substantially parallel to the side surface 22.

  Here, since the overhanging portion 28 is provided on the vehicle upper side of the inclined portion 26 that is inclined inward in the vehicle width direction as it goes upward in the vehicle, the amount of overhang of the overhanging portion 28 is based on the vehicle lower portion of the inclined portion 26. Can be reduced.

  Further, the inclined portion 26, the inclined surface 28A, the vertical surface 28B, and the upper surface 20A of the outer surface 24 of the side panel 20 are different from each other in the formed plane, and therefore have a predetermined angle between each other. Become. For this reason, when air moves between different planes, for example, a small vortex 30 is generated due to an angular change in air movement from the inclined surface 28A to the vertical surface 28B and from the vertical surface 28B to the upper end surface 20A. Thereby, air can be peeled from the outer surface 24 of the side panel 20.

  That is, an angle change point (for example, the upper edge portion 28A1 of the inclined surface 28A, the upper edge portion 28B1 of the vertical surface 28B, etc.) is formed by providing an angle change on the surface of the overhang portion 32. And air clinging to the outer surface 24 of the side panel 20 can be peeled off from the side panel 20.

  For example, the inclined portion 26 and the inclined surface 28 </ b> A are opposite to each other in the inclination direction, so that a rapid angle change can be obtained. Thus, it becomes easy to make air peel from the side panel 20 by obtaining an abrupt angle change. In addition, since the vortex at the time of moving from the inclined part 26 to the inclined surface 28A is integrated with the traveling wind (arrow A), the illustration is omitted.

  As described above, by causing the air clinging to the outer surface 24 of the side panel 20 to be peeled off from the side panel 20, the inflow of traveling wind into the deck 14 can be suppressed or prevented. Thereby, the air resistance at the time of vehicle travel can be reduced. And the fuel consumption of the vehicle 10 improves because the air resistance at the time of vehicle travel is reduced. In addition, the ride comfort and steering stability of the vehicle 10 can be improved.

  Here, the ride comfort and handling stability of the vehicle 10 will be described in detail. By forming the inclined portion 26 and the overhanging portion 28 continuously on the upper portion 24A of the outer surface 24 of the side panel 20, FIG. As shown in FIG. 5, the air flow changes from F1 to F2 on the outer surface 24 of the side panel 20. When the air flow changes as described above, R1 and R2 are generated on the outer side surface 24 of the side panel 20 in the left and right side panels 20 as force components. A resultant force F (buoyancy F) is obtained at the intersection of R1 and R2.

  Thus, by generating the buoyancy F on the deck 14 by the force of air, the movement of the vehicle 10 with respect to the vertical direction of the vehicle due to a change in the road surface can be suppressed, and a riding comfort with little change in posture can be achieved. That is, the riding comfort of the vehicle 10 can be improved.

  On the other hand, when the deck 14 is lifted by the resultant force F, the buoyancy C is generated. Since the floating center C and the center of gravity G are on substantially the same vertical line, the two forces cancel each other and the vehicle 10 is stabilized. That is, in this case, the straight traveling stability (steering stability) of the vehicle 10 is improved.

  Further, as shown in FIG. 4, when the buoyancy center C and the center of gravity G are not on substantially the same vertical line, a rotational moment (arrow B) acts on the vehicle 10. At this time, when the metacenter M, which is the intersection of the vertical line of the buoyancy C and the vehicle center line (on the center of gravity G), is at a position higher than the center of gravity G, a restoring force N that tries to return the inclination of the vehicle 10 is generated. To do. By using this force, the force in the rolling direction of the vehicle 10 can be suppressed. That is, the steering stability of the vehicle 10 can be improved.

(Modification of the embodiment)
By the way, in this embodiment, the overhang | projection part 28 is connected with the upper edge part 26A of the inclination part 26, and as shown in FIG. And a vertical surface 28B formed along the vertical direction of the vehicle so as to be connected to the upper edge portion 28A1 of 28A and to be substantially parallel to the inner side surface 22 of the side panel 20. However, since the air clinging to the outer side surface 24 of the side panel 20 only needs to be separated from the side panel 20, the shape of the overhanging portion 28 is not limited to this.

(1) For example, as shown in FIG. 5 (A), a horizontal surface as a first peeling surface where the overhang portion 32 is connected to the upper edge portion 26A of the inclined portion 26 and extends substantially horizontally toward the vehicle width direction outer side. 32A and an inclined surface 32B as a second separation surface that is connected to an outer edge portion (hereinafter, simply referred to as an “outer edge portion”) 32A1 of the horizontal surface 32A and is inclined inward in the vehicle width direction toward the upper side of the vehicle. It may be configured to include.

  By providing an angle change on the surface of the overhang portion 32, an angle change point (an outer edge portion 32A1 of the horizontal surface 32A, an upper edge portion 32B1 of the inclined surface 32B, etc.) is formed, thereby generating a small vortex, and the side panel 20 The air clinging to the outer surface 24 can be peeled off from the side panel 20.

  In addition to this, as shown in FIG. 5B, the overhanging portion 36 is connected to the upper edge portion 26A of the inclined portion 26 and serves as a first peeling surface that is inclined outward in the vehicle width direction as it goes upwards in the vehicle. The inclined surface 36A may be configured to include an inclined surface 36B that is connected to the upper edge portion 36A1 of the inclined surface 36A and is inclined toward the vehicle width direction inward as the second peeling surface.

  Further, considering air separation at the angle change point, it is better to form the angle change point sharply. However, as shown in FIG. 5C, for example, the inclined surface 36A, the inclined surface 36B, and the inclined surface An angle change point located between the surface 36B and the upper end surface 20A of the side panel 20 (on the upper edge portion 36A1 of the inclined surface 36A and the upper edge portion 36B1 of the inclined surface 36B shown in FIG. 5B) You can go.

(2) Further, as shown in FIG. 6A, the overhanging portion 40 is provided with a neck portion 42 at the base of the overhanging portion 40 in addition to the horizontal surface 32A and the inclined surface 32B shown in FIG. May be. Here, the neck portion 42 shown in FIG. 6 (A) is connected to the upper edge portion 26A of the inclined portion 26, and a horizontal plane 42A as a first peeling surface extending substantially horizontally toward the vehicle width direction outer side, and the outside of the horizontal plane 42A. An inclined surface 42B as a second separation surface that is connected to the end 42A1 and is inclined outward in the vehicle width direction as it goes downward of the vehicle.

  Thus, by forming the neck part 42, the number of angle change points increases from the surface of the overhang | projection part 32 shown to FIG. 5 (A), and the peeling location of air will increase. Specifically, as shown in FIG. 6A, an angle change point (upper edge portion 26 </ b> A of the inclined portion 26) is formed between the inclined portion 26 and the horizontal plane 42 </ b> A in the upper part of the vehicle vertical direction. . Further, an angle change point (outer end portion 42A1 of the horizontal surface 42A) is formed between the horizontal surface 42A and the inclined surface 42B, and an angle change point (lower end portion of the inclined surface 42B) is formed between the inclined surface 42B and the horizontal surface 32A. 42B1) is formed.

  In the overhanging portion 40 as well, as shown in FIG. 6B, the angle change point of the overhanging portion 40 shown in FIG. 6A (the upper edge portion 26A of the inclined portion 26, the outer end portion 42A1 of the horizontal surface 42A). Etc.), rounding 44 may be performed. However, in this case, the horizontal surfaces 32A and 42A shown in FIG.

(3) Furthermore, as shown in FIG. 7A, the horizontal surface as a first separation surface where the overhang portion 50 is connected to the upper edge portion 26A of the inclined portion 26 and extends substantially horizontally toward the vehicle width direction outer side. 50A and a vertical surface 50B as a second separation surface that is connected to the outer edge portion 50A1 of the horizontal surface 50A and is formed along the vehicle vertical direction so as to be substantially parallel to the inner surface 22 of the side panel 20. May be.

  As described above, the vertical surface 50B substantially parallel to the inner side surface 22 of the side panel 20 is formed on the surface on the outer side in the vehicle width direction of the overhang portion 50, so that the inclined surface is inclined inward in the vehicle width direction toward the upper side of the vehicle. Compared with the case where the is formed, the inflow of traveling wind into the deck 14 can be further suppressed.

  Moreover, in the overhang | projection part 50, it replaces with the horizontal surface 50A shown to FIG. 7 (A) as shown in FIG.7 (B), and is inclined as a 1st peeling surface which inclines in the vehicle width direction inside as it goes to the vehicle upper direction. The surface 50C may be formed. Further, as shown in FIG. 7C, rounding 52 may be performed on the surface of the overhang portion 50.

  In the above embodiment, an example in which an inclined portion that is inclined inward in the vehicle width direction as it goes upward of the vehicle is given as the base portion. However, if a sharp angle change can be provided between the protruding portion and the base portion. For good, it is not limited to this. For example, although not illustrated, the base portion may be an inclined portion that is inclined outward in the vehicle width direction toward the upper side of the vehicle, and the base portion may be formed on a vertical line.

  In this embodiment, the deck 14 is not provided with a guide frame (not shown). However, a type in which a guide frame is provided is also applicable.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above, and other various modifications can be made without departing from the spirit of the present invention. It is.

10 vehicle 12 cabin 14 deck (loading platform, vehicle loading platform structure)
20 Side panel 26 Inclined part (base part)
26A Upper edge portion 28A Inclined surface (first peeling surface)
28B Vertical surface (second peeling surface)
28 Overhang portion 32 Overhang portion 32A Horizontal surface (first peel surface)
32B inclined surface (second peeling surface)
36 Overhang portion 36A Inclined surface (first peeling surface)
36B inclined surface (second peeling surface)
40 Overhang portion 42A Horizontal surface (first peeling surface)
42B inclined surface (second peel surface)
50 Overhang portion 50A Horizontal surface (first peeling surface)
50B Vertical surface (second peeling surface)
50C inclined surface (first release surface)

Claims (4)

A part of a box-shaped cargo bed, a pair of side panels disposed at both ends in the vehicle width direction and extending along the vehicle front-rear direction;
A base portion provided on the vehicle width direction outer side upper portion of the side panel, and extending along the vehicle longitudinal direction and the vehicle vertical direction;
A projecting portion that is provided on the vehicle upper side of the base portion continuously with the base portion, and projects toward the outside in the vehicle width direction from the upper portion of the base in the vehicle vertical direction;
Vehicle carrier structure having The overhang portion is
A first peeling surface that is formed along the vehicle width direction as viewed from the rear of the vehicle and peels the traveling wind at an outer edge in the vehicle width direction;
A second peeling surface that is formed along the vehicle vertical direction when viewed from the rear of the vehicle and peels the traveling wind at the upper edge of the vehicle vertical direction;
The vehicle carrier structure according to claim 1, comprising:   3. The vehicle bed structure according to claim 2, wherein the first peeling surface is an inclined surface that is inclined outward in the vehicle width direction toward the upper side of the vehicle.   4. The vehicle bed structure according to claim 2, wherein the second peeling surface is a vertical surface extending along a vehicle vertical direction.

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