JP3985353B2 - Air resistance reduction structure of flat body vehicle with hood - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure for reducing air resistance of a flat body vehicle with a hood made of a flat bar structure.
[0002]
[Prior art]
4 and 5 show a conventional structure for reducing air resistance.
FIG. 4 shows a state in which the air resistance reduction device 10 having a flat bar structure is installed on a cargo bed panel having a certain height. The air resistance reducing device 10 is attached above the cab 7 to a space 10a on the front surface of the cargo bed panel.
FIG. 5 shows a state in which the streamlined air deflector type air resistance reducing device 11 is installed on a carrier panel having a constant height, like the air resistance reducing device 10 of FIG. The air resistance reducing device 11 of FIG. 5 is also attached to the space 10a on the front surface of the cargo bed panel above the cab 7, similarly to the air resistance reducing device 10 of FIG.
JP-A-9-104368 is cited as a prior art of an air resistance reduction structure. The air resistance reducing device disclosed in Japanese Patent Laid-Open No. 9-104368 is for a box type van, and is installed on a carrier board having a constant height, similar to the air resistance reducing devices 10 and 11 shown in FIGS. Used. Further, the configuration, installation method, usage, and the like are substantially the same as those of the air resistance reduction devices 10 and 11 of FIGS.
[0003]
6 to 8 show side views of a flat body vehicle not equipped with an air resistance reducing device. Between the loading platform 6 and the cab 7 of the flat body car, a torii frame 1 is installed for the purpose of protecting the cab 7 and partitioning the cab 7 and the loading platform 6. FIG. 6 shows the case where the loading platform 6 is in an empty state, FIG. 7 shows the loading platform 6 with the insertion frame 8, and FIG. 8 shows the state where the hood 9 is installed on the state of FIG. 7. Show.
[0004]
[Problems to be solved by the invention]
All of the above conventional examples are installed in a space 10a having a predetermined dimension like a box (van) type loading platform, so that the effect can be improved as planned. However, in a flat body car with a hood, it becomes empty. In this case, it is usual to fold the hood 9 which is disadvantageous in terms of running resistance, so if the hood 9 is folded, the air resistance reducing device 11 is installed according to the height of the hood 9 and once enjoyed a predetermined effect. When the hood 9 is folded later as shown in FIG. 9, the air resistance reducing device 11 increases the projected area by 10b in FIG. 9 in the traveling direction and also creates a vortex behind it. It becomes a part. Also, as shown in FIG. 10, if it is desired to use a hood 9 that is taller than the air resistance reducing device 11 installed in advance, a gap 10c is formed, so that a predetermined air resistance reducing effect cannot be expected. Originally, the advantage of the combination of a flat body and a hood is that the load form can be freely adjusted according to the condition of the load, so the air resistance reduction device is also very effective in the condition of the load, that is, the condition of the hood. It is desirable that the structure can be easily adjusted so that it is not affected by the state of the hood without being removed.
[0005]
The present invention was devised in view of the above circumstances, and the air resistance reduction device can be easily adjusted so that its effect is maximized in accordance with the loaded state, that is, the state of the hood, An object of the present invention is to provide a structure for reducing the air resistance of a flat body vehicle with a hood that is not likely to be affected by the state of the hood without being removed.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is an apparatus for reducing the air resistance of a flat body vehicle with a hood, and a horizontal flat bar disposed substantially parallel to an upper end member of the torii frame of the vehicle, A plate-like plate bar structure comprising a pair of vertical plate bars mounted substantially vertically near both ends of the horizontal plate bar and opposed to the torii vertical member, the plate bar structure being a loading platform It is characterized in that it is arranged in the immediate vicinity of the inside of the front closed flat surface where the hood is formed and covers the torii frame. Also, with a hood that allows the vertical bar to be fixed in the vertical direction to the torii frame by fastening the vertical plate bar to the vertical member of the torii frame through a long hole drilled in the vertical plate bar. An air resistance reduction structure for a flat body vehicle is provided.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The structure for reducing the air resistance of a flat body vehicle with a hood according to the present invention includes a flat bar structure 4 as shown in FIGS. 1 to 3 as a main component.
The flat bar structure 4 is formed by attaching the vertical flat bar 3 so as to intersect or abut substantially vertically in the vicinity of both ends of the horizontal flat bar 2 provided substantially parallel to the upper end member 1c of the torii frame 1 of the vehicle. FIGS. 1 to 3 show only the flat bar structure 4 in which the horizontal flat bar 2 and the vertical flat bar 3 cross each other, but the flat bar structure 4 includes the horizontal flat bar 2 and the vertical flat bar. 3 may be attached in contact with each other without crossing.
As shown in FIGS. 1 to 3, the present invention comprises a flat bar structure 4 attached to a torii frame 1 of a flat body vehicle. That is, unlike the prior art, the flat bar structure 4 is attached to the torii frame 1 of the flat body vehicle, and the flat bar structure 4 is formed by the hood 9 in the direction of travel and is closed in the traveling plane 9a (FIGS. 1 and 2). In other words, it is disposed in the immediate vicinity of the front surface closed by the hood 9 to reduce the air resistance of the flat body vehicle with the hood.
[0008]
Next, an embodiment of an air resistance reducing structure for a flat body vehicle with a hood of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a first embodiment of the present invention. In this embodiment, the flat bar structure 4 is integrated with the torii frame 1, and the flat bar structure 4 is a closed section 9 a in the traveling direction formed by the hood 9, that is, in the immediate vicinity of the front surface closed by the hood 9. The air resistance reduction effect is exhibited.
On the other hand, in the state in which the hood 9 is folded, the flat bar structure 4 has a substantial air resistance generating source because the thin plate directions of the horizontal flat bar 2 and the vertical flat bar 3 substantially coincide with the air flow direction. Must not.
[0009]
FIG. 2 shows a second embodiment of the present invention. In this embodiment, the flat bar structure 4 is fixed to the torii frame 1 by fastening the vertical flat bar 3 of the flat plate structure 4 to the vertical member 1d of the torii frame 1 with a fastening bolt 1b or the like. According to the present embodiment, the flat bar structure 4 can be handled as an optional part or the like.
[0010]
FIG. 3 shows a third embodiment of the present invention. In this embodiment, a flat bar is formed by a long hole 5 formed in the vertical flat bar 3 of the flat bar structure 4, a fastening hole 1 a formed in the vertical member 1 d of the torii frame 1, a fastening bolt 1 b and the like. The vertical flat bar 3 of the structure 4 is fixed to the vertical member 1 d of the torii-waku 1, and the fixing position of the vertical flat bar 3 to the vertical member 1 d is changed in the vertical direction within the range of the effective length 5 a of the long hole 5. I can do it. Thereby, the installation height of the flat bar structure 4 can be adjusted according to the height on the cab of the closed flat surface portion 9 a formed by the hood 9, and the optimum air resistance according to the state of the hood 9. Reduction can be performed. On the other hand, when the hood 9 is folded, the height position of the flat bar structure 4 is adjusted until the horizontal flat bar 2 comes into contact with the upper end member 1c of the torii frame 1. Thereby, the flat bar structure 4 does not become a substantial air resistance generation source, and does not become an obstacle when the long object rests in the torii 1.
[0011]
【The invention's effect】
1) According to the structure for reducing air resistance of a flat body vehicle with a hood according to claim 1 of the present invention, the flat bar structure is disposed in the immediate vicinity of the front closed flat surface formed by the hood of the cargo bed. In addition to exerting an air resistance reduction effect, even if the hood is folded, the horizontal plate bar and the thin plate direction of the vertical plate bar of the plate bar structure substantially coincide with the direction of air flow. It is not a source of air resistance.
2) According to the structure for reducing air resistance of a flat body vehicle with a hood according to claim 2 of the present invention, the installation of a flat bar structure according to the height above the cab of the closed flat surface formed by the hood of the cargo bed By adjusting the height, an optimum air resistance reduction effect can be exhibited. In addition, if the height of the flat bar structure is adjusted until the horizontal flat bar comes into contact with the upper end member in a state where the hood of the cargo bed is folded, the flat bar structure does not become a substantial air resistance generation source. In addition, it does not become an obstacle when resting long objects torii.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of a structure for reducing air resistance of a flat body vehicle with a hood of the present invention.
FIG. 2 is a perspective view showing the second embodiment.
FIG. 3 is a perspective view showing components of the third embodiment.
FIG. 4 is an external perspective view showing a mounting state of a conventional air resistance reducing device.
FIG. 5 is an external perspective view showing a mounting state of a conventional air resistance reducing device.
FIG. 6 is a side view of a flat body vehicle in an empty state.
FIG. 7 is a side view of a flat body vehicle in a state in which an insertion frame is installed.
FIG. 8 is a side view of a flat body vehicle in a state where a cargo bed is covered with a hood.
FIG. 9 is a side view of an unloaded state when it is assumed that an air deflector type air resistance reduction device is installed in a flat body vehicle.
FIG. 10 is a side view showing a state in which a cargo bed is covered with a hood when it is assumed that an air deflector type air resistance reduction device is installed in a flat body vehicle.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Torii frame 1a Fastening hole 1b Fastening bolt 1c Upper end member 1d Vertical member 2 Horizontal flat bar 3 Vertical flat bar 4 Flat bar structure 5 Long hole 5a Effective length 6 Loading platform 7 Cab 8 Insert frame 9 Top 9a Closed plane part

Claims (2)

A device for reducing the air resistance of a flat body vehicle with a hood, and a horizontal flat bar disposed substantially parallel to an upper end member of the torii frame of the vehicle, and mounted substantially vertically near both ends of the horizontal flat bar. , Comprising a plate-like flat bar structure comprising a pair of vertical flat bars attached opposite to the torii vertical member, the flat bar structure being located inside the closed flat part on the front where the hood of the loading platform is formed A structure for reducing the air resistance of a flat body vehicle with a hood, characterized in that the structure is composed of a thing disposed in the immediate vicinity and covering the torii frame. 2. The vertical fixing position of the flat bar structure to the torii frame is variable by fastening the vertical flat bar to the vertical member of the torii frame through a long hole drilled in the vertical plate bar. Air resistance reduction structure for flat body vehicle with hood as described.

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