JPS5843868A - Wind guiding plate - Google Patents

Abstract

PURPOSE:To reduce the wind pressure hitting the wind guide plate and to suppress vibration by flowing part of air which is hit when a vehicle is running through air intake holes provided in the front part of the wind guide plate, and smoothly exhausting the air rearward through air exhausting holes. CONSTITUTION:A wind guide part 6 of the wind guide plate 5 has a configuration comprising a front rising part 6A, a slant surface part 6B comprising a smooth curved surface which is continued from the rising part 6A, and a horizontal part 6C comprising similar smooth curved surface which is continued from the slant surface part 6B. The air intake holes 8 are formed in said rising part 6A and the air exhausting holes 9 are formed in said horizontal part 6C. The correlation between the holes 8 and 9 are set so that smooth air flow paths are formed between the holes 8 and 9. Guide nozzles 10 are provided on the air exhausting holes 9. Furthermore, the wind guide plate 5 is arranged so that the smoothly continued surface is formed at the part between the front surface 1A of a driver's cab and the roof of a carrier 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wind guide plate that is installed on the roof of the driver's cab of a freight vehicle or the like to reduce air resistance during driving.

In general, in a truck or the like, as shown in FIG. 1, a front portion 3' of a cargo platform 2 protrudes above the rear of a driver's cab 1. As a result, as can be seen from the arrows indicating the air flow during driving, when driving, the front section 3 receives air resistance due to the wind ridges K, and the air flow whose path is disturbed by the front section 3. Due to the accompanying turbulence, the air resistance increased to 5! : This has the disadvantage that the fuel consumption for driving becomes very inefficient. Therefore, in order to eliminate the above-mentioned disadvantages, a wind guide plate forming a slope between the front end of the roof of the driver's cab 1 and the upper end of the front surface 3 of the loading platform 2 has been conventionally installed to reduce air resistance. Methods are being developed to reduce this.

With conventional air guide plates, there is a slight force shift.
The disadvantage is that the baffle plate itself vibrates due to the large wind pressure applied to it. In addition, as a result, the wind guide plate becomes easily deformed and damaged, and there are disadvantages such as loosening at the Km attachment point, which poses a major problem in terms of durability and safety.Furthermore, As a means to prevent the vibration of the wind guide plate due to the wind pressure as described above, a number of holes are provided on the wind guide plate to reduce the wind pressure applied to the wind guide plate. In that case, more air than necessary flows into the baffle plate, which is supposed to rectify the air flow, resulting in the inconvenience that the baffle plate's original function is not fully fulfilled. A problem arises in that the flowing air is turbulent and pressure is applied to the wind guide plate, making it impossible to suppress vibrations.

The present invention was proposed in order to solve the above-mentioned problems in the conventional art, and its purpose is to reduce the wind pressure received during driving without impairing the original function of the wind board. It is an object of the present invention to provide a baffle plate tube which prevents vibration of the tube and is excellent in terms of durability and safety.

The following is a preferred implementation of the present invention. This will be explained in detail based on the accompanying drawings.

FIG. 2, which is a perspective view of one implementation of the present invention, and its A-A
In FIG. 3, which is a line sectional view, reference numeral 5 denotes an air guide plate, which is formed by an air guide part 6 and a side part 7. To explain the shape of the wind guiding part 6, as shown in FIG.
Smooth song i from the 6th point of the standing part! ! ? "It has a continuous slope part 6B and a horizontal part 6Ct which continues from the slope part 6B with a smooth curved pipe and extends horizontally. Also, the above-mentioned standing part 6 people and the ceiling part 6C have a driver's cab l As an example of the specific shape of the loading platform 2, as shown in FIG. If the horizontal part 6Ct is formed to be located parallel to the ceiling of the loading platform 2, or on a plane parallel to the ceiling of the loading platform 2, the front surface of the driver's cab l Since a smooth and continuous surface is formed from the top of the cargo area to the ceiling of the loading platform 2, good air flow will be achieved. 8 is an air inflow hole provided on the air guide section and the upright section 6m (Figures 2 and 3), and 9 is an air outlet hole provided on the horizontal section 6C of the air guide section 6. Here, regarding the reciprocal position If relationship between the air inflow hole 8 and the air outflow hole 9, the air flowing in from the air inflow hole 8 flows as smoothly as possible and reaches the air outflow hole 9. 8 and the air outflow hole 9, respectively, are provided on the baffle plate s so that a smooth air flow path is formed between the air outlet hole 9 and the air outlet hole 9.

In this sense, the air guide portion 6 of the air guide plate 5 having the shape described above is
The above embodiment has an air inflow hole 8 and an air outflow hole 9t in the upright part 6m and horizontal part 6C, respectively. When the wind pressure tm applied to the air outflow hole 9 is reduced, the air flowing out from the busy air outflow hole 9 is guided to the rear of the baffle plate 5, so that air outflow is facilitated. It is a guide nozzle, and its shape may be a semi-dome shape that covers the air outlet hole 9 as shown in FIG. Various other shapes may be considered as long as the shape can guide the air to the rear of the baffle plate 5. 1. In FIG. 3, a cut is made in a part of the horizontal part 6C of the air guide part 6, and the part is pushed upward and deformed to form a semi-dome shape as shown in FIG. 5 at the same time as the air outlet 9. When the guide nozzle 1O1- is formed, gold is shown. - Furthermore, as the material for the baffle plate 5 described above, it is preferable to use an aluminum plate or the like or reinforced plastic (FRP) because it can be made lightweight and strong.

Here, to explain the function of the baffle plate 5 configured as described above, a part of the air that hits the upright portion 6m of the baffle plate 5 while driving is guided through the air inflow hole 8 *S The air flows smoothly in a circle and flows from the air outlet hole 9 to the guide nozzle 1.
It flows smoothly behind the baffle plate 5 while being guided by G. At this time, open the guide nozzle IOK and air outflow hole 9K.
Since such wind pressure is shielded, air can flow out without any resistance. In this case, according to the above-mentioned implementation, since the air inflow hole 8 is provided in the part of the standing portion 6m where the air hits the strongest, air inflow is performed better and the wind pressure applied to the baffle plate 5K is effectively reduced. It will be easily understood that in the above embodiment, air inlet holes 8 are formed in the upright part 6m and the horizontal part 6C of the baffle plate 5 having the five shapes described above. Although the case where the air outflow hole 9 is provided is shown, it is not limited to this, and the air inflow hole 8 and the air outflow hole 9t-R order are provided so that the air guide plate has the above-mentioned mva relationship. It goes without saying that other things can also be covered by the present invention.

Since the four-wind plate according to the present invention is constructed and operates as described above, it provides the following excellent effects.

A part of the air that hits the air guide plate when driving [The air guide plate is designed to flow in from the air inlet hole provided in front of the plate and smoothly flow out from the air outlet hole to the rear, so that the air that hits the air guide plate is
The wind pressure applied to the baffle plate can be effectively reduced without moving horizontally to A-, thereby making it possible to satisfactorily suppress vibrations caused by the wind pressure. Therefore, it is possible to provide a very practical baffle plate that is durable and safe.

4. Brief explanation of the drawing '#! Figure 1 is a side view of the state of air flow when the Ki6 freight vehicle is running without a wind guide plate, and Figure 2 is a perspective view 1 showing an embodiment of the air guide plate according to the present invention. Fig. 3 is a sectional view of a portion of the moom in Fig. 2, Fig. 4 is a side view showing the air guide plate according to an embodiment of the present invention attached to a truck, and Fig. 5 is a shape of the guide cover. FIG.

Here, 1... Driver's cab, 2... Loading platform, 5... Wind guide plate, 6... Wind guide part, 6 Mu... Standing part, 6B... Slope part, 6C...・Horizontal part, 7... Side part, 8... Air inflow hole, 9... Air outflow hole, 10... Guide nozzle.

Patent applicant: Meidai Bussan Co., Ltd. jl--ni:・=　.

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Claims (3)

[Claims] (1) In a wind guide plate that extends from the front of the roof of the driver's cab of a truck or the like to near the ceiling of the loading platform, the wind guide plate has an inclination of 1itiii,
5 Air inflow holes and air outflow holes that allow air to flow in and out of the front and rear parts of the slope, respectively, and form a smooth air flow path in the baffle plate between them. By providing an inflow hole and an air outflow hole, a part of the air that is in front of the inclined surface is allowed to flow in from the air inflow hole [through the inner tube of the baffle plate and flowed out from the air outflow hole] A wind guide plate characterized by reducing the wind pressure applied to the air. (2) The front part of the slope is on the same plane as the front of the driver's cab, or the standing part is located on a plane parallel to the front, and the rear part of the slope is on the same plane as the ceiling of the loading platform. or a horizontal part located on a plane parallel to the ceiling part, and an air inflow hole is provided in the upright part, and an air outflow hole is provided in the horizontal part. The air guide plate described in . (3) A wind guide plate provided with an inclined surface t extending from the front of the driver's cab roof to near the cargo platform ceiling of a seven-car truck, etc., is installed, and air flows into the front and rear portions of the inclined surface.
, an air inflow hole and an air outflow hole for outflow, the air inflow hole and the air outflow hole forming a smooth air flow*1 in the baffle plate between them, and the air outflow hole. All stages of guide nozzles are installed in the upper part of the air outlet hole to facilitate air outflow by shielding the wind pressure applied to the air outflow hole and guiding the air flowing out from the nine anti-outflow holes to the rear. A baffle plate characterized in that air is allowed to flow out from the air outflow hole in a good manner.