JP2018165063A - Air intake guide structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve prevention of rain drops from being generated continuously by avoiding concentration of rain water on a forefront end of a retreat shape part of an air intake guide without mounting an additional component like a drip channel.SOLUTION: The air intake guide structure, used to apply to a transportation vehicle with an air intake port 2 opened toward the outside in the vehicle width direction on a roof 1a at the rear of a cab 1, includes: an air intake guide 5 for reducing air resistance by filling a gap to a height of a loading space 4, which is placed on the roof 1a; a retreat shape part 6 for bypassing the air intake port 2 upward before opening, which is provided on the air intake guide 5; and an edge part 10 for forcing rain drops to drip just behind a notched part 9 by forming the notched part 9 at least at the front part in the retreat shape part 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wind guide plate structure for application to a transport vehicle.

  In general, large transport vehicles such as trucks have more opportunities to travel on unpaved rough roads than ordinary passenger cars, so the engine intake air is not the outside air near the ground that contains a lot of dust. Therefore, it is preferable to take in clean outside air at a sufficiently high part from the ground, and there is a risk of rainwater and snow splashing up near the ground, so make sure that only outside air is at a sufficiently high part from the ground. It is preferable to incorporate.

  For this reason, in a large transport vehicle, a vertically long intake duct is installed by shifting it toward the vehicle width direction outside of the rear surface of the cab. However, as shown in FIG. An intake duct 3 has been proposed in which an air intake 2 is opened on a roof 1a behind the cab 1 so that it can be taken in.

  According to such an intake duct 3, the intake efficiency of the intake air into each cylinder of the engine is increased by taking in the sufficiently cooled outside air that is less affected by the hot air from the engine room, and moreover clean air is supplied at a higher position. By taking it in, the service life of the air cleaner can be extended, and the operation state with little pressure loss can be maintained for a long period of time, thereby improving the fuel efficiency.

  Here, the intake duct 3 that opens the air intake 2 on the roof 1a of the cab 1 rides on the roof 1a from the rear surface side of the cab 1 and is on the side surface on the outer side in the vehicle width direction (left side in FIG. 3). As shown in FIG. 4, an air guide plate 5 for reducing the air resistance by filling the gap with the height of the loading platform 4 is mounted on the roof 1a. In the case of being placed, it is necessary to provide the air guide plate 5 with a retreating shape portion 6 that detours and opens the air intake port 2 upward.

  As prior art document information explaining general existing techniques related to the present invention, there are the following patent documents 1 and 2 by the same applicant as the present invention.

Utility Model Registration No. 2566732 JP 2002-310022 A

  However, when the retracting shape portion 6 of the air guide plate 5 is formed so as to bypass the air intake port 2 opened on the roof 1 a behind the cab 1, the retracting shape portion 6 is used as the roof in front of the cab 1. Since it forms a front-lowering shape by detouring upward from the air intake 2 behind the cab 1 from a position along the upper surface of the la, the rainwater w that has flowed down to the outside in the vehicle width direction after flowing down the wind guide plate 5 It is guided forward through the retreating shape part 6, rain water w concentrates on the foremost end of the retraction shape part 6 to generate continuous raindrops, and the door 7 (see FIG. 4) of the cab 1 is opened to get on and off. There was a problem that the occupant gets wet by continuous rain.

  In other words, the foremost end of this type of retraction shape portion 6 is over the opening 8 of the door 7 of the cab 1 (see FIG. 5: FIG. 5 shows the door 7 removed for convenience of explanation). Because it moves to the position, continuous raindrops occur so as to block the opening 8 of the door 7, especially in situations where it is raining heavily, and passengers get on and off in the form of passing through this raindrop. By doing so, there is a possibility that the clothes will get wet significantly, which is one factor that hinders the combined use of the intake duct 3 and the air guide plate 5 of the above-described type.

  In general, a drip channel is attached to the retracting shape portion 6 of the air guide plate 5 to receive rainwater w, and a measure for guiding and draining to a position away from the opening 8 of the door 7 can be taken. However, such a measure for attaching a separate drip channel inevitably increases the cost and increases the number of assembly steps.

  The present invention has been made in view of the above-mentioned circumstances, and it is possible to continuously generate raindrops by preventing rainwater from concentrating on the foremost end of the retraction shape portion of the air guide plate without providing a separate part such as a drip channel. It aims to be able to prevent.

  The present invention is a wind guide plate structure for use in a transport vehicle having an air intake opening that opens outward in the vehicle width direction on the roof behind the cab, and fills a gap with the height of the loading platform on the roof. A wind guide plate for reducing the resistance is placed, a retracting shape portion is provided on the wind guide plate to bypass and open the air intake port, and a notch portion is formed at least in a front portion of the retracting shape portion. Then, an edge portion that encourages dripping of raindrops is formed immediately after the cutout portion.

  Thus, in this case, the retraction shape portion of the air guide plate formed so as to bypass the air intake opening that is open on the roof behind the cab is along the upper surface of the roof in front of the cab. Since the air intake behind the cab is detoured upward from the position, it forms a front-lowering shape, so rainwater that falls on the wind guide plate and flows outward in the vehicle width direction travels forward through the retraction shape part, When it reaches the notch partway, it stagnates at the edge part without passing through the notch part, where it rains and falls down below the cab. As a result, the rainwater that falls on the wind guide plate and flows outward in the vehicle width direction becomes raindrops at the edge portion of the retraction shape portion, and rainwater concentrates on the foremost end of the retraction shape portion, resulting in continuous raindrops. Nothing will happen.

  Further, in the present invention, the intake duct is disposed so as to be shifted to the vehicle width direction outside of the rear surface of the cab, the head portion of the intake duct rides on the roof of the cab, and the head portion outwards in the vehicle width direction. It is suitable for the case where the air intake is opened on the facing side, and this type of intake duct can be applied without difficulty to a transport vehicle having a wind guide plate on the roof of the cab. Become.

  According to the above-described air guide plate structure of the present invention, various excellent effects as described below can be obtained.

  (I) According to the invention described in claim 1 of the present invention, the rainwater that has flowed down to the outside in the vehicle width direction by pouring onto the air guide plate without an additional part such as a drip channel is provided at the edge of the retraction shape portion. It is possible to make raindrops by dispersing at the part, and this prevents the rainwater from concentrating on the foremost end of the retraction shape part, so that continuous raindrops can be prevented. The problem of occupants getting wet due to continuous raindrops when getting on and off can be solved without increasing costs and increasing the number of assembly steps.

  (II) According to the invention described in claim 2 of the present invention, the head is arranged in a state of being shifted to the outside in the vehicle width direction on the rear surface of the cab and the head portion is mounted on the roof of the cab. The intake duct of the type in which the air intake opening is opened on the side facing the vehicle width direction outside of the section can be applied without difficulty to the transport vehicle provided with the air guide plate on the roof of the cab.

It is a side view which shows roughly an example of the form which implements this invention. It is an enlarged view which shows the detail of the principal part of FIG. It is a perspective view which shows a prior art example. It is a perspective view which shows the prior art example provided with the baffle plate on the roof of the cab. It is explanatory drawing regarding the raindrop which arises in the retraction | saving shape part of the baffle plate of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 and FIG. 2 show an example of an embodiment for carrying out the present invention. In this embodiment, as in the case of the conventional example of FIG. 4 and FIG. The air intake duct 3 is disposed so as to be offset, the head portion 3a of the air intake duct 3 rides on the roof 1a of the cab 1, and the air intake 2 is formed on the side surface of the head portion 3a facing outward in the vehicle width direction. An air guide plate 5 is mounted on the roof 1a to reduce the air resistance by filling the gap with the height of the loading platform 4. The air intake port 2 is directed upward on the air guide plate 5. A retraction shape portion 6 that is detoured and opened is provided, but by forming a plurality of notches 9 at a required interval in the front portion of the retraction shape portion 6, dripping raindrops immediately after the notches 9. It is characterized by the formation of the urging edge 10

  That is, in the example shown here, a plurality of right-angled triangular notches 9 are formed in the front portion of the retraction shape portion 6 of the air guide plate 5, and immediately after each notch 9 is formed. The edge portion 10 that is substantially perpendicular to the left portion remains. In the case of the illustrated example, the edge portion 10 has a substantially right angle. However, if the edge portion 10 is formed to have an acute angle, it becomes easier to promote dripping of raindrops.

  In FIG. 1, for convenience of explanation, each notch 9 is illustrated in a larger size. However, in practice, dripping dripping can be promoted by forming a relatively small notch 9 as shown in FIG. Thus, there is no concern that the aesthetic appearance of the air guide plate 5 is remarkably impaired by the formation of the notch 9 as described above.

  Thus, in this case, the retracting shape portion 6 of the air guide plate 5 formed so as to bypass the air intake port 2 opened on the roof 1a behind the cab 1 upward is Since the air intake 2 behind the cab 1 is detoured upward from a position along the upper surface of the roof 1a of the roof, it forms a front-lowering shape. Heading forward through the shape portion 6, it stops at the edge portion 10 without passing through the notch portion 9 by hitting the notch portion 9 in the middle of the shape portion 6. It will be. As a result, the rainwater w that has flowed down to the outside in the vehicle width direction after falling onto the air guide plate 5 is dispersed in the respective edge portions 10 of the retreat shape portion 6 and becomes raindrops. Concentration will not cause continuous raindrops.

  Therefore, according to the above-described embodiment, the rainwater w that has flowed down to the outside in the vehicle width direction after flowing down the air guide plate 5 at each edge portion 10 of the retraction shape portion 6 can be obtained without adding another part such as a drip channel. Since the rainwater w can be prevented from concentrating on the foremost end of the retreating shape portion 6 to prevent the continuous raindrop from occurring, the door 7 of the cab 1 (see FIG. 4), the problem that the occupant gets wet due to continuous rain when getting on and off can be solved without causing an increase in cost and an increase in assembly man-hours.

  Further, the side surface of the head portion 3a facing toward the outside in the vehicle width direction is arranged so as to be shifted to the vehicle width direction outside of the rear surface of the cab 1 and the head portion 3a is placed on the roof 1a of the cab 1. The air intake duct 3 having the air intake opening 2 can be applied to a transport vehicle provided with the air guide plate 5 on the roof 1a of the cab 1 without any trouble.

  Note that the air guide plate structure of the present invention is not limited to the above-described embodiment, and the illustrated example shows an example in which a plurality of notches are formed at a required interval in the front portion of the retracted shape portion. Of course, one notch portion may be formed, and various changes may be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Cab 1a Roof 2 Air intake 3 Intake duct 3a Head part 4 Loading platform 5 Air guide plate 6 Retraction shape part 9 Notch part 10 Edge part

Claims (2)

  An air guide plate structure applied to a transport vehicle having an air intake opening on the roof behind the cab toward the outer side in the vehicle width direction, and the air resistance is reduced by filling a gap with the loading platform height on the roof. A notch portion is provided by placing a wind guide plate, and providing the wind guide plate with a retracting shape portion that bypasses and opens the air intake port upward, and forms a notch portion at least in a front portion of the retracting shape portion. Immediately after, an air guide plate structure is formed in which an edge portion that encourages dripping of raindrops is formed.   An air intake duct is disposed so as to be shifted to the vehicle width direction outside of the rear surface of the cab, and an air intake is formed on a side surface of the head portion of the air intake duct that rides on the roof of the cab and faces the vehicle width direction outside. The air guide plate structure according to claim 1, wherein:

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