Aerodynamic parts for van body

Abstract

To provide a lightweight aerodynamic part for a van body which can be easily attached and detached. [Solution] This aerodynamic part is attached to a freight vehicle where part of the luggage compartment (B) is higher than the upper surface of the cabin (C) and changes the flow of wind hitting part of the luggage compartment (B), the aerodynamic part for a van body vehicle comprising a plurality of airfoils (12) attached to the upper surface of the cabin so as to rise rearward at a vertical angle to the direction of travel of the freight vehicle, the airfoils (12) are elongated, composed of upper and lower surfaces, and have a wing cross-sectional shape that is longer on the lower surface than on the upper surface, and the plurality of airfoils (12) are arranged in parallel with each other, and plate-shaped wing end plates (15) are attached to both wing ends of the plurality of airfoils (12) and arranged to sandwich the plurality of airfoils (12), and each of the plurality of airfoils (12) is installed at intervals.

Description

[Technical field]

[0001] The present invention relates to an aerodynamic part for a truck, and more particularly to an aerodynamic part for a van body vehicle that is attached to the upper part of the cabin of a truck. [Background technology]

[0002] There are various types of freight vehicles, including flatbeds, van bodies, and wing bodies. Van body and wing body freight vehicles have a rectangular parallelepiped cargo compartment at the rear. If part of the cargo compartment is higher than the top surface of the cabin, the wind from the front hits the protruding part and causes air resistance. Increased air resistance leads to poor fuel efficiency, which has a significant impact on freight vehicles that travel frequently.

[0003] Patent Document 1, entitled "Air guide plate device for truck," describes a technology characterized in that in a air guide plate device for a truck equipped with an air guide plate provided above the driver's seat of the truck, the air guide plate is formed into a wing-shaped cross-section with an upper plate recessed in an arc shape and a lower plate bulging in an arc shape such that the front-to-rear dimension of the lower plate is longer than that of the upper plate, and the air guide plate is attached at a downward inclination angle relative to the traveling direction of the truck.

[0004] Conventional air guide plates attached to the top of trucks have a problem in that they are large and heavy because they need to have a surface area equal to the surface area of ​​the top of the cabin. They weigh about 40 to 50 kg, making them difficult to transport and install and remove. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Utility Model Registration No. 3171247 Summary of the Invention [Problem to be solved by the invention]

[0006] Conventional air guide plate devices have the problem that they are large, heavy, and difficult to attach and remove.

[0007] The present invention has been made to solve the above-mentioned problems, and aims to provide an aerodynamic part for van body vehicles that is lightweight and can be easily attached and detached to the top surface of the cabin by partially constructing a straightening part that changes the flow of wind hitting the truck. [Means for solving the problem]

[0008] The aerodynamic part (1) for a van body vehicle according to one aspect of the present invention is an aerodynamic part that is attached to a freight vehicle in which a part of the luggage compartment is higher than the upper surface of the cabin, and changes the flow of wind hitting the part of the luggage compartment. The aerodynamic part comprises a plurality of airfoils (12) that are long and slender, each having an upper surface and a lower surface, and whose wing cross section has a longer lower surface than the upper surface, and are attached to the upper surface of the cabin so as to rise rearward at a vertical angle to the traveling direction of the freight vehicle, and plate-shaped wing end plates (15) that are attached to both wing ends of the plurality of airfoils that are arranged in parallel and are arranged to sandwich the plurality of airfoils. and a spindle-shaped vortex generator (14) that is narrow at the front and rear and bulges at the center, on the rearmost one of the plurality of stabilizing vanes. This aerodynamic part for van body vehicles is equipped with multiple airfoils installed at intervals.

[0009] It is preferable that each end plate be mounted at the same angle.

[0011] It is desirable that the fan further comprises an upper plate (133) disposed under the rearmost airfoil and attached at the same inclination as the upper surface of the airfoil, and a front plate (134) disposed forward of the upper plate and attached at a vertical angle less steep than that of the upper plate.

[0012] The fan may also be provided with plate-shaped end plates attached to the longitudinal ends of the upper panel and the front panel and arranged to sandwich a plurality of parallel-arranged airfoils. Effect of the Invention

[0013] The aerodynamic parts for van body vehicles of the present invention are smaller than conventional air guide plates. Conventional air guide plates weigh about 40 to 50 kg, whereas the aerodynamic parts for van body vehicles of the present invention can be made lighter at about 30 kg. Therefore, they are easy to transport and can be easily attached and detached to the cabin.

[0014] In addition, instead of pushing away the wind as with conventional air guide plates, the new air guide plate directs it backward along the body of the truck, further reducing air resistance. [Brief description of the drawings]

[0015] [Figure 1] FIG. 2 is a perspective view showing the aerodynamic parts for van bodies attached to a freight car. [Diagram 2] FIG. 2 is a perspective view showing the aerodynamic parts for a van body vehicle attached to the cabin. [Diagram 3] FIG. 4 is a perspective view showing the girder attached to the cabin. [Figure 4] A side view showing the aerodynamic parts for van bodies attached to the cabin. [Diagram 5] A plan view showing the aerodynamic parts for van body vehicles attached to the cabin. [Figure 6] Cross-sectional view of a flow control wing. [Figure 7] FIG. 2 is a perspective view showing the aerodynamic parts for a van body vehicle attached to the cabin. [Figure 8] FIG. 4 is a perspective view showing the air deflector attached to the cabin. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] An embodiment of the aerodynamic part for a van body of the present invention will be described with reference to the drawings. The horizontal axial direction in which a truck moves forward is defined as the traveling direction.

[0017] <Overview> As shown in the perspective view of FIG. 1, the aerodynamic part 1 for a van body vehicle of the present invention is attached to the upper surface of the cabin of a van body vehicle in which a luggage compartment B is higher than a cabin C. As shown in the perspective view of FIG. 2, the aerodynamic part 1 for a van body vehicle is composed of a spar 11, a fairing wing 12, a fairing plate 13, a vortex generator 14 and a wing end plate 15.

[0018] <Girder material> The girder 11 is a long, thin rod-like member, and is attached to the top surface of the cabin C parallel to the traveling direction of the freight car. As shown in the perspective view of Fig. 3, in this embodiment, two girder members 11 are attached to the roof rack on the cabin C of the freight car with screws at two mounting parts 110 each. Of course, they may be attached by welding, riveting, adhesive, or the like, without being limited to screws.

[0019] <Brectifier blade> The airflow wing 12 is a thin, elongated member having an upper surface and a lower surface. As shown in the side view of Fig. 4, the forward first airflow wing 121 raises the traveling wind upward, the raised traveling wind is guided further rearward by the intermediate second airflow wing 122, and the rearmost third airflow wing 123 guides the traveling wind to the front end of the luggage compartment. The number of airflow wing 12 is not limited to three, and may be two or four or more depending on the size of the cabin C and the height of the luggage compartment B.

[0020] The airflow wing 12 is attached at right angles to the traveling direction in the horizontal plane, spanning two girder members 11. In this embodiment, the airflow wing 12 is fixed to and spanned by holders 111, 112, and 113 standing vertically from the girder members 11 near both wing tips. The first holder 111 is a substantially triangular member, fixed to the girder members 11 at its horizontal edge, and holds the first airflow wing 121 at its forward inclined edge. The second holder 112 and the third holder 113 are substantially trapezoidal members, fixed to the girder members 11 at their lower horizontal edges, and hold the second airflow wing 122 and the third airflow wing 123 at their upper inclined edges.

[0021] As described above, the airfoil 12 is attached to the holders 111, 112, 113 at an acute angle with respect to the traveling direction. In addition, as shown in the plan view of Fig. 5, the length of the airfoil 12 is set to be the same as the width of the luggage compartment B regardless of the width of the cabin, so that the front surface of the luggage compartment B is not exposed to the wind caused by traveling.

[0022] As shown in the cross-sectional view of the airfoil 12 in Fig. 6, the cross-sectional shape of the airfoil 12 is straight on the upper surface but curved on the lower surface, and the lower surface is longer than the upper surface. The air flowing under the lower surface flows faster than the air flowing over the upper surface, creating more negative pressure on the lower surface than on the upper surface, generating downforce. In other words, the aerodynamic part 1 for van body vehicles itself is pressed against the cabin C, and further, the truck is pressed against the ground, which has the effect of stabilizing driving.

[0023] <Wingtip> Each end of the airfoil 12 is provided with an end plate 15. The end plate 15 is a plate-like member that is attached vertically to the end of each airfoil 12 (FIG. 2). The end plate 15 is substantially triangular, consisting of a nearly horizontal side, a nearly vertical side, and a side with the same angle as the mounting angle of the airfoil 12 (FIG. 4). The end plate 15 prevents air from flowing from the upper surface of the airfoil 12 to the lower surface, suppressing the generation of air vortexes at the wing tip. In other words, it has the effect of suppressing air resistance. As shown in the perspective view of FIG. 7, the lower end of the end plate 15 has a bent portion 151. By having the bent portion 151, the strength of the end plate 15 is increased, and flapping of the end plate 15 due to the wind while traveling can be suppressed.

[0024] The wing end plate 15 only needs to be in contact with the wing tip of the airfoil 12, and the location to which it is fixed may be the edge of the airfoil 13 described below instead of the wing tip, or it may be fixed to the upper surface of the cabin. In addition, since the wing end plate 15 has a large area, it can also be used as a place to display the name of the carrier of the freight vehicle to which the aerodynamic part 1 is attached.

[0025] <Rectifier plate> The straightening plate 13 is composed of an upper plate 133 and a front plate 134. As shown in the perspective view of Figure 8, beams 131 are hung between the beams 11, and rectangular reinforcing members 132 are fixed thereto. The upper plate 133 and the front plate 134 are attached to the reinforcing members 132. The upper plate 133 is attached at the same inclination angle as the upper surface of the airfoil 12, and has a hole through which the third retainer 113 passes. The front plate 134 is attached at a less steep vertical angle than the upper plate 133. The upper plate 133 and the front plate 134 are joined to the wing tip plate 15 at their ends, similar to the airfoil 12.

[0026] <Vortex generator> The vortex generator 14 is a so-called vortex generator and has a spindle shape with narrow front and rear portions and a bulging center portion. The vortex generator 14 is attached on the last airfoil 12 (the third airfoil 123 in this embodiment) (FIG. 2). In other words, it is attached at a position where it is hit by the running wind guided from the previous airfoil 12 (the second airfoil 122 in this embodiment). The running wind from the front airfoil 12 hits the vortex generator 14 to generate a vortex, which can suppress the turbulence of the airflow at the rear end of the aerodynamic part 1 for a van body vehicle.

[0027] The vortex generators 14 can also be attached to the side of the luggage compartment B (FIG. 2). In this embodiment, nine vortex generators are attached on the third airfoil 123, and four on each side of the luggage compartment. This is not limiting, and the number of vortex generators to be attached can be changed depending on the length of the airfoil 12 and the height of the luggage compartment B. The vortex generators 14 may also be attached to the upper surface of the luggage compartment B.

[0028] <Installation Procedure> The procedure for installing the aerodynamic part 1 for a van body vehicle is as follows. The two girder members 11 are attached to the cabin C with screws or the like. The holders 111, 112, and 113 are fixed to the girder members 11. The front plate 134 and the upper plate 133 are fixed to the holders 112 and 113. The airfoils 121, 122, and 123 are fixed to the holders 111, 112, and 113. The wing tip plate 15 is fixed to the airfoils 121, 122, and 123, the upper plate 133, and the front plate 134. In this way, the aerodynamic part 1 for van body vehicles can be easily installed because each part is assembled and attached to the cabin, and since it does not have large parts like the conventional air guide plate, it can be relatively easily attached and removed. In addition, since it is lighter than the air guide plate, the cargo load weight can be increased accordingly.

[0029] The members may be attached by various conventional methods such as screws, welding, riveting, or adhesive. The number of attachment portions 110 may be one, or three or more. The number of spar members 11 may be one or three or more. When one spar member 11 is used, it is preferable to fix it at the center rather than at the wing tip. A planar member may be used as long as it can fix the airfoil 12 and the airfoil 13. It is also possible to directly attach the holders 111, 112, 113 and the airfoil 13 to the cabin C without using the spar member 11. It is desirable that the angle of the airfoil 12 be able to be appropriately changed in relation to the length of the cabin C and the height of the luggage compartment B.

[0030] <Action and effect> The running wind is blown up by the first airfoil 121, guided by the second airfoil 122 to the third airfoil 123, and a vortex is generated by the vortex generator 14 on the third airfoil 123, thereby preventing separation of the running wind at the rear end of the cabin C.

[0031] The airfoil 12 prevents the traveling wind from hitting the front of the luggage compartment B by blowing it up while rectifying the traveling wind from the front. In addition, the airfoil 12 generates downforce, which presses the aerodynamic part 1 for a van body vehicle itself against the cabin C, making it difficult to come off. Furthermore, the freight vehicle is pressed down against the ground, which increases friction and improves driving stability. [Industrial Applicability]

[0032] The aerodynamic parts for van body vehicles of the present invention can be used not only for van body vehicles but also for various vehicles with structures higher than the cabin, such as wing bodies, and can be widely used in the transportation field. In addition, it can improve fuel efficiency and reduce exhaust gas, and improve driving stability to reduce the risk of accidents, so it is an invention that can be used industrially and is also expected to make a great contribution to society. [Explanation of symbols]

[0033] 1. Aerodynamic parts for van body 11 Girder material 110 Mounting part 111 First holder 112 Second holder 113 Third holder 12 Rectifier vane 121 First rectifier vane 122 Second rectifier vane 123 Third rectifier vane 13 Rectifier plate 131 Beam material 132 Reinforcement 133 Top plate 134 Front plate 14 Vortex generator 15 Wingtip 151 Bending part C Cabin B. Luggage compartment

Claims

1. An aerodynamic part that is attached to a truck in which a part of the luggage compartment is higher than the upper surface of the cabin and changes the flow of wind hitting the part of the luggage compartment, A plurality of airfoils attached to the top surface of the cabin so as to rise rearward at a vertical angle to the direction of travel of the truck, the airfoils being long and slender, each having an upper surface and a lower surface, and each having an aerofoil cross-sectional shape in which the lower surface is longer than the upper surface; a plate-shaped wing tip plate attached to both ends of the plurality of airfoils arranged in parallel and arranged so as to sandwich the plurality of airfoils; a vortex generator having a spindle shape narrow at the front and rear and bulging at the center is provided on the rearmost one of the plurality of stabilizing vanes, A plurality of the airflow stabilization vanes are provided at intervals. Aerodynamic parts for van body cars.

2. Each of said wing end plates is attached at the same angle.

2. An aerodynamic part for a van body according to claim 1.

3. an upper surface plate disposed under the rearmost airfoil and attached at the same inclination as an upper surface of the airfoil; A front plate is disposed forward of the top plate and is attached at a less steep vertical angle than the top plate.

3. An aerodynamic part for a van body vehicle according to claim 1 or 2.

4. An aerodynamic part that is attached to a truck in which a part of the luggage compartment is higher than the upper surface of the cabin and changes the flow of wind hitting the part of the luggage compartment, A plurality of airfoils attached to the top surface of the cabin so as to rise rearward at a vertical angle to the direction of travel of the truck, the airfoils being long and slender, each having an upper surface and a lower surface, and each having an aerofoil cross-sectional shape in which the lower surface is longer than the upper surface; an upper surface plate disposed under the rearmost airfoil and attached at the same inclination as an upper surface of the airfoil; a front plate disposed forward of the top plate and attached at a more obtuse vertical angle than the top plate; a plate-shaped end plate attached to longitudinal ends of the upper plate and the front plate and disposed so as to sandwich the plurality of parallel-arranged airfoils; A plurality of the airflow stabilization vanes are provided at intervals. Aerodynamic parts for van body cars.

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