Aerodynamic component for van body vehicles

Abstract

To provide an aerodynamic component for van body vehicles which is lightweight and easily attachable and detachable.SOLUTION: An aerodynamic component for van body vehicles is attached to a truck which has part of a cargo chamber (B) formed higher than an upper surface of a cabin (C) and which changes a flow of wind that hits part of the cargo chamber (B). The aerodynamic component includes plural rectification blades (12) that are attached to the upper surface of the cabin so that the rectification blades will rise backward at a vertical angle relative to an advancing direction of the truck, are slender, each include an upper surface and lower surface, and have a blade section shaped so that the lower surface is longer than the upper surface, and tabular blade end plates (15) that are attached at both blade ends of the rectification blades (12) disposed in parallel with one another and that are disposed to sandwich the plural rectification blades (12). The plural rectification blades (12) are disposed with a space between adjoining ones.SELECTED DRAWING: Figure 2

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 top of the cabin of a truck. [Background technology]

[0002] There are various types of freight vehicles, including flatbeds, vans, and wing bodies. Vans and wing bodies have a rectangular 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, causing air resistance. Increased air resistance results in poor fuel efficiency, which has a significant impact on freight vehicles that travel frequently.

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

[0004] Conventional air deflectors attached to the top of trucks have a problem in that they are large and heavy, weighing around 40 to 50 kg, making them difficult to transport and install / 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 of being large and 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 a van body vehicle that is lightweight and can be easily attached and detached to the top surface of the cabin by partially configuring a straightening part that changes the flow of wind hitting the truck. [Means for solving the problem]

[0008] An 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 part of the luggage compartment is higher than the top surface of the cabin, and that changes the flow of wind hitting that part of the luggage compartment.The aerodynamic part for a van body vehicle comprises a plurality of slender airfoils (12) attached to the top surface of the cabin so as to rise rearward at a vertical angle to the direction of travel of the freight vehicle, each airfoil having an upper and lower surface and a wing cross-sectional shape in which the lower surface is longer than the upper surface, and plate-shaped wing tip plates (15) attached to both wing tips of the plurality of airfoils arranged in parallel and arranged so as to sandwich the plurality of airfoils, and each of the plurality of airfoils is installed at intervals.

[0009] It is desirable that each wingtip be mounted at the same angle.

[0010] It is desirable that a spindle-shaped vortex generator (14) having narrow front and rear portions and a bulging central portion is further provided on the rearmost of the plurality of stabilizing vanes.

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

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

[0013] The aerodynamic part for van body vehicles of the present invention is smaller than conventional air guide plates. While conventional air guide plates weigh about 40 to 50 kg, the aerodynamic part for van body vehicles of the present invention can be made lighter, weighing about 30 kg. This makes it easy to transport and to attach and remove from the cabin.

[0014] In addition, instead of pushing the wind away like conventional air guide plates, the new system directs the wind backward along the truck body, further reducing air resistance. [Brief explanation of the drawings]

[0015] [Figure 1] This is a perspective view showing the aerodynamic parts for van bodies attached to a freight vehicle. [Figure 2] This is a perspective view showing the aerodynamic parts for a van body vehicle attached to the cabin. [Figure 3] FIG. 10 is a perspective view showing the state in which the girder is attached to the cabin. [Figure 4] A side view showing the aerodynamic parts for van body vehicles attached to the cabin. [Figure 5] A plan view showing the aerodynamic parts for van body vehicles attached to the cabin. [Figure 6] Cross-section of a flow control wing. [Figure 7] This is a perspective view showing the aerodynamic parts for a van body vehicle attached to the cabin. [Figure 8] FIG. 10 is a perspective view showing the air deflector attached to the cabin. DETAILED DESCRIPTION OF THE INVENTION

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

[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 comprises a spar 11, a flow control wing 12, a flow control plate 13, a vortex generator 14, and a wing end plate 15.

[0018] <Girder material> The beams 11 are long, thin rod-shaped members that are attached to the top surface of the cabin C parallel to the direction of travel of the freight vehicle. As shown in the perspective view of Fig. 3, in this embodiment, two beams 11 are attached to the roof rack on the cabin C of the freight vehicle with screws at two mounting portions 110 each. Of course, they are not limited to being attached with screws, and may be attached by welding, riveting, adhesive bonding, or the like.

[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 Figure 4, the forward first airflow wing 121 raises the traveling wind upward, the raised traveling wind is guided further rearward by the middle second airflow wing 122, and the final 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 stabilizing vane 12 is attached to two girder members 11 at right angles to the direction of travel in the horizontal plane, spanning the vane. In this embodiment, the airflow stabilizing vane 12 is fixed to and spanned by holders 111, 112, and 113 that stand vertically from the girder members 11 near both wing tips. The first holder 111 is a roughly triangular member that is fixed to the girder members 11 at its horizontal edge and holds the first airflow stabilizing vane 121 at its forward-sloping edge. The second holder 112 and third holder 113 are roughly trapezoidal members that are fixed to the girder members 11 at their lower horizontal edges and hold the second airflow stabilizing vane 122 and third airflow stabilizing vane 123 at their upper-sloping edges.

[0021] As described above, the airfoil 12 is attached to the holders 111, 112, and 113 at an acute angle to the traveling direction. In addition, as shown in the plan view of Fig. 5, the length of the airfoil 12 should be the same as the width of the luggage compartment B, regardless of the width of the cabin, so that the front 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 Figure 6, the cross-sectional shape of the airfoil 12 is straight on the upper surface but curved on the lower surface, with the lower surface being longer than the upper surface. As the air flowing below flows faster than the air flowing above, the lower surface has more negative pressure than the upper surface, generating downforce. In other words, the aerodynamic part 1 for a van body vehicle 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 a wingtip plate 15. The wingtip plate 15 is a plate-like member that is attached vertically to the end of each airfoil 12 (Fig. 2). The wingtip plate 15 has a roughly triangular shape consisting of a nearly horizontal side, a nearly vertical side, and a side with an angle equal to the angle of incidence of the airfoil 12 (Fig. 4). The wingtip plate 15 prevents air from flowing from the upper surface to the lower surface of the airfoil 12, suppressing the generation of air vortices at the wing tip. In other words, it has the effect of reducing air resistance. As shown in the perspective view of Fig. 7, the wingtip plate 15 has a bent portion 151 at its lower end. The bent portion 151 increases the strength of the wingtip plate 15 and helps to prevent flapping of the wingtip plate 15 due to wind while the aircraft is running.

[0024] The wing tip 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 later) instead of the wing tip, or it may be fixed to the top surface of the cabin. Furthermore, since the wing tip plate 15 has a large area, it can also be used as a place to display the name of the freight carrier on which the aerodynamic part 1 is attached.

[0025] <Rectifier plate> The straightening plate 13 consists of an upper panel 133 and a front panel 134. As shown in the perspective view of Figure 8, beams 131 are hung between the girders 11, and rectangular reinforcing members 132 are fixed to the beams. The upper panel 133 and the front panel 134 are then attached to the reinforcing members 132. The upper plate 133 is attached at the same inclination angle as the upper surface of the airflow stabilizing wing 12, and has holes for passing the third retainers 113. 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 plates 15 at their ends, similar to the airflow stabilizing wing 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 to the last airflow stator 12 (the third airflow stator 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 airflow stator 12 (the second airflow stator 122 in this embodiment). The running wind from the front airfoil 12 hits the vortex generator 14 to generate a vortex, thereby suppressing 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 surfaces of the luggage compartment B (FIG. 2). In this embodiment, nine vortex generators are attached on the third airflow stabilizing wing 123, and four vortex generators are attached to each side surface of the luggage compartment B. However, this is not limitative and the number of vortex generators to be attached can be changed depending on the length of the airflow stabilizing wing 12 and the height of the luggage compartment B. Alternatively, the vortex generators 14 may be attached to the top surface of the luggage compartment B.

[0028] <Installation Procedure> The steps to install the aerodynamic part 1 for a van body vehicle are as follows. The two spars 11 are attached to the cabin C with screws or the like. The retaining fixtures 111, 112, and 113 are fixed to the spars 11. The front panel 134 and the upper panel 133 are fixed to the retaining fixtures 112 and 113. The airfoils 121, 122, and 123 are fixed to the retaining fixtures 111, 112, and 113. The wing tip plates 15 are fixed to the airfoils 121, 122, and 123, the upper panel 133, and the front panel 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 because it does not have large components like a conventional air guide plate, it can be attached and removed relatively easily.In addition, because it is lighter than an air guide plate, it can increase the cargo load weight accordingly.

[0029] The members may be attached by screws, or by various conventional methods such as welding, riveting, or adhesive. The attachment portion 110 may be provided at one location or at three or more locations. 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 air straightening vane 13. It is also possible to attach the holders 111, 112, 113 and the air straightening vane 13 directly onto the cabin C without using the spar member 11. It is desirable that the angle of the airfoil 12 can be changed appropriately depending on 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 to the third airfoil 123 by the second airfoil 122, 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 less likely to come off. Furthermore, by pressing the freight vehicle down against the ground, friction is increased, improving traveling 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, they can improve fuel efficiency and reduce exhaust gas emissions, and improve driving stability to reduce the risk of accidents, making them an invention that can be used industrially and is expected to make a significant contribution to society as well. [Explanation of symbols]

[0033] 1. Aerodynamic parts for van body cars 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 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, 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 freight vehicle, each of which is elongated and has an upper surface and a lower surface, and each of which has an aerofoil cross section whose lower surface is longer than its upper surface; a plate-shaped blade tip plate attached to both ends of the plurality of airflow stabilization vanes arranged in parallel and arranged so as to sandwich the plurality of airflow stabilization vanes; A plurality of the flow control vanes are arranged at intervals. Aerodynamic parts for van body vehicles.

2. Each of the wing tip plates is attached at the same angle. The aerodynamic part for a van body vehicle according to claim 1.

3. a spindle-shaped vortex generator, which is narrow at the front and rear and bulges at the center, is further provided on the rearmost one of the plurality of stabilizing vanes; The aerodynamic part for a van body vehicle according to claim 1.

4. an upper surface plate disposed under the rearmost airfoil and attached at the same inclination as the upper surface of the airfoil; Further comprising a front plate disposed in front of the top plate and attached at a less obtuse vertical angle than the top plate; 4. An aerodynamic part for a van body vehicle according to claim 1.

5. 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, 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 freight vehicle, each of which is elongated and has an upper surface and a lower surface, and each of which has an aerofoil cross section whose lower surface is longer than its upper surface; an upper surface plate disposed under the rearmost airfoil and attached at the same inclination as the upper surface of the airfoil; a front panel disposed in front of the top panel and attached at a vertical angle less steep than that of the top panel; a plate-shaped blade tip plate attached to longitudinal ends of the upper surface plate and the front surface plate and disposed so as to sandwich the plurality of parallel-arranged airfoils; A plurality of the flow control vanes are arranged at intervals. Aerodynamic parts for van body vehicles.

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