JP2017030535A - Wind guide member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wind guide member which prevents heat from accumulating in a space between a cab and a load-carrying platform part.SOLUTION: A wind guide member includes: an opening 101 provided at a position where the largest air resistance occurs during traveling of a vehicle; a nozzle 103 provided at a rear end part of a cab 200; and an air duct 102 connecting the opening 101 with the nozzle 103. The nozzle 103 is provided in a vicinity of an intake port 202 of an intake duct 201 of an engine provided in a space between the rear end part of the cab 200 and a load-carrying platform 300 and is formed so that air discharged from the nozzle 103 is taken from the intake port 202.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a wind guide member that is mounted on a roof (ceiling) of a cab and reduces air resistance in a vehicle including a box-type cargo bed on the rear side of the cab.

  In a large vehicle such as a truck, when the height of the box-shaped cargo bed part is higher than that of the cabin (cab) including the driver's seat, wind resistance hits the cargo bed part while the vehicle is running and air resistance is generated. Due to the air resistance, the fuel efficiency of the vehicle may deteriorate. In order to reduce the deterioration of fuel consumption due to such wind, it is a common practice to provide a wind guide member on the roof of the cab for guiding the wind striking the cargo bed portion to the top of the cargo bed (see, for example, Patent Document 1). . Such a wind guide member is called a wind deflector, an air deflector, a drag foiler, or the like.

Japanese Utility Model Publication No. 1-147180

  In addition to such a wind guide member, the space between the cab and the platform can be made as small as possible, or a gap shield can be installed to eliminate the step between the cab and the platform on the side of the vehicle. The fuel efficiency of large vehicles such as these is improved.

  However, if the space between the cab and the cargo bed portion is small, heat tends to be trapped in the part. When a wind guide member, a gap shield, or the like is mounted on the vehicle, the wind is less likely to enter the space even while the vehicle is running. Since the intake duct of the engine is often installed in the space, if the heat is accumulated in the space, the intake air temperature of the engine becomes high. The higher the engine intake air temperature, the worse the fuel consumption and engine output. For this reason, a structure in which heat does not accumulate in the space has been desired.

  An object of the present invention is to provide an air guide member capable of preventing heat from being accumulated in a space between a cab and a cargo bed portion.

  An air guide member according to the present invention is a wind guide member that is mounted on a roof of a cab in a vehicle having a box-shaped cargo bed on the rear side of a cab, and the air guide member of the wind guide member is running while the vehicle is running. An opening provided at a position having the largest air resistance; a nozzle provided at a rear end of the cab; and a blower pipe connecting the opening and the nozzle.

  According to the present invention, it is possible to prevent heat from being accumulated in the space between the cab and the loading platform.

Front view of a cab fitted with a wind guide member A side view of the cab and loading platform with the air guide member View of the cab fitted with the air guide member viewed from the rear side (loading side) View of the air guide member from above The figure for demonstrating the fan in a ventilation pipe Block diagram showing an example of a block that controls the rotation of the fan The figure for explaining the lid Block diagram showing an example of a block that controls opening and closing of the lid

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a cab 200 equipped with a wind guide member 100. FIG. 2 is a side view of the cab 200 and the loading platform 300 on which the air guide member 100 is mounted. Moreover, FIG. 3 is the figure which looked at the cab 200 equipped with the air guide member 100 from the rear surface side (loading platform side).

  As shown in FIGS. 1 to 3, the air guide member 100 is mounted on the roof of the cab 200 so as to cover the entire roof in a vehicle (a truck or the like) including the cab 200 and the box-shaped loading platform 300. . The air guide member 100 has a hollow structure, and its outer wall surface has the shape shown in FIGS. 1 and 2.

  As shown in FIG. 2, the front end portion of the air guide member 100 is inclined at substantially the same angle as the front upper portion of the cab 200, that is, the windshield portion as viewed from the side. As shown in FIG. 2, the outer wall of the air guide member 100 gradually decreases in inclination angle as it advances backward from the front end portion, and the rear end portion thereof is substantially the same height as the loading platform 300. With such a structure, the wind impinging on the air guide member 100 is smoothly guided to the upper part of the loading platform 300 by the air guide member 100, so that the air resistance of the traveling vehicle can be reduced. Note that the front-rear relationship in the present embodiment is that the traveling direction when the vehicle is traveling is forward and the opposite direction is backward. The same applies to the following description.

  The shape of the air guide member 100 shown in FIG. 2 is an example, and the present invention is not limited to this. The purpose of the air guide member 100 is to smoothly guide wind hitting the vicinity of the upper portion of the cab 200 to the upper portion of the loading platform 300 while the vehicle is traveling, and the shape of the air guide member 100 is a shape that can achieve this purpose. Anything can be used.

  As described above, the air guide member 100 is provided on the cab 200. However, as shown in FIGS. 1 and 2, the opening 101 is provided at a portion that contacts the roof of the cab 200 when the air guide member 100 is viewed from the front. ing. A part of the wind hitting the air guide member 100 during traveling is taken into the opening 101.

  As shown in FIG. 2, the opening 101 is connected to a blower pipe 102 that extends to the rear end of the cab 200. The blower tube 102 is connected to the nozzle 103 at the rear end of the cab 200. In FIG. 2, the blower tube 102 is shown using a dotted line, but this dotted line shows the position of the blower tube 102 through the outer wall of the air guide member 100.

  As shown in FIGS. 2 and 3, the nozzle 103 is a nozzle that discharges air taken from the opening 101 into the space between the cab 200 and the loading platform 300, which is the rear part of the cab 200. As described above, the inside of the air guide member 100 is configured to be hollow except for the air duct 102. As shown in FIG. 3, the reinforcing member 104 is a member for fixing the outer wall of the hollow air guide member 100 on the roof of the cab 200 or a member for reinforcing the fixing. The outer wall and the roof of the cab 200 are connected. The material, connection position, shape, and the like of the reinforcing member 104 are not limited in the present invention. Note that the illustration of the reinforcing member 104 is omitted in FIG.

  As shown in FIG. 3, the nozzle 103 is provided near the intake port 202 of the intake duct 201. As a result, the air taken in from the opening 101 is discharged from the nozzle 103 through the blower tube 102 and further taken in from the intake port 202. The intake duct 201 is a duct for supplying air to an engine (not shown) provided in an engine room (not shown) below the cab 200, for example. The intake port 202 is an opening for taking air into the intake duct 201. The intake duct 201 is provided in a space between the rear end portion of the cab 200 and the loading platform 300. In particular, in the present embodiment, the intake duct 201 is connected to the cab 200 as shown in FIGS. It is provided on the rear surface.

  With such a structure, air taken in from the opening 101 is discharged from the nozzle 103 into the space between the cab 200 and the loading platform 300 while the vehicle is running. As shown in FIG. 2, when the space between the cab 200 and the loading platform 300 is narrow, fresh air hardly enters the space even while the vehicle is running, and heat is stored in the space. However, since fresh air is released from the nozzle 103 while the vehicle is running, the temperature of the space can be lowered. Furthermore, since the nozzle 103 is provided near the intake port 202 of the intake duct 201 of the engine, the intake air temperature of the engine can be lowered. Thereby, when the fuel efficiency, the output performance of the engine, and the supercharger (such as a turbocharger) are provided, the durability of the supercharger can be improved.

  In FIG. 3, the intake duct 201 is arranged to be biased to the right side of the rear surface portion of the cab 200, but this is an example, and the present invention is not limited to this. The intake duct 201 may be arranged near the center or on the left side of the rear surface portion of the cab, for example. Further, the position of the nozzle 103 is determined in accordance with the arrangement position of the intake duct 201 so that the air discharged from the nozzle 103 is taken in from the intake port 202 of the intake duct 201. For this reason, the nozzle 103 is not limited to the position biased to the right side of the rear surface portion of the cab 200 as shown in FIG. 3, and is arranged according to the position of the intake duct 201.

  FIG. 4 is a view of the air guide member 100 as viewed from above. Here, “upper” means, for example, the upper side in FIGS. The upward direction in FIG. 4 corresponds to the front direction of the cab 200. As shown in FIG. 4, the opening 101 is opened to the full width of the air guide member 100, and the blower tube 102 is connected to the entire opening 101. The blower tube 102 is configured such that the lateral width becomes narrower in accordance with the width of the nozzle 103 as it proceeds to the rear part of the cab 200. Thereby, the wind taken in from the opening 101 is efficiently sent to the nozzle 103 by the blower tube 102. The horizontal width of the nozzle 103 may be set to a width that matches the horizontal width of the intake port 202, for example. In FIG. 4, the blower tube 102 is shown using a dotted line as in FIG. 2, but this dotted line shows the shape of the blower tube 102 through the outer wall of the air guide member 100. In FIG. 4, the reinforcing member 104 is not shown.

  In the present embodiment, the opening 101 is provided at a portion in contact with the roof of the cab 200 when the air guide member 100 is viewed from the front, for the following reason. As shown in FIG. 2, the outer wall of the air guide member 100 is formed so that the inclination angle decreases as it advances from the front end portion to the rear portion, as described above, and the wind received from the front during the running of the vehicle is smooth. A rectifying effect leading to the upper part of the loading platform 300 is exhibited. However, if the opening 101 for taking in air is provided, the rectifying effect at that portion is lost, and the air resistance of the entire vehicle increases. In order to offset the increase in air resistance due to the provision of the opening 101, it is preferable that the opening 101 is originally provided at a position where the air resistance is large. Therefore, the opening 101 in the present embodiment is provided at the front end portion of the air guide member 100 where the inclination angle is the largest and the air resistance is large.

  Thus, it is preferable that the opening part 101 is provided in the position where air resistance is the largest among the air guide members 100. By providing at the position where the air resistance is the largest, it can be expected that air is easily taken in from the opening 101 while the vehicle is running. In the present invention, since the shape of the air guide member 100 is not limited to the shape illustrated in FIG. 2 as described above, the preferred position of the opening 101 varies depending on the shape of the air guide member 100. That is, the opening 101 does not necessarily have to be provided at the front end portion of the air guide member 100. For example, if the portion of the air guide member 100 having the highest air resistance is the central portion of the air guide member 100, An opening 101 may be provided.

  As described above, according to the air guide member 100 of the first embodiment, the opening 101 provided at the position where the air resistance is the highest during traveling of the vehicle and the rear end portion of the cab 200 are provided. The nozzle 103 and the air duct 102 connecting the opening 101 and the nozzle 103 are provided. The nozzle 103 is provided in the vicinity of the intake port 202 of the intake duct 201 of the engine provided in the space between the rear end portion of the cab 200 and the loading platform 300, and air discharged from the nozzle 103 is caused by the intake port 202. It is configured to be captured.

  With such a configuration, the wind striking the wind guide member 100 while the vehicle is running is smoothly guided to the upper part of the loading platform 300 by the outer wall of the wind guide member 100, and the air taken in from the opening 101 is 102 and the nozzle 103 are discharged into the space between the cab 200 and the loading platform 300. For this reason, the temperature of the space can be lowered and the intake air temperature of the engine can also be lowered. Accordingly, the air resistance of the entire vehicle can be suppressed by the outer wall of the air guide member 100, and the increase in the room temperature in the cab 200 due to heat trapped in the space between the cab 200 and the cargo bed 300 can be suppressed. it can. Further, fuel efficiency and engine output performance can be improved, and when a supercharger is provided, durability of the supercharger can be improved.

  In the first embodiment described above, the case where the gap shield for eliminating the step between the cab 200 and the loading platform 300 on the side surface of the vehicle is not shown or described. However, even if the gap shield is mounted on the vehicle, fresh air can be sent into the space between the cab 200 and the loading platform 300 by the air guide member 100, and the temperature of the space can be lowered. The same applies to other embodiments described below.

<Second Embodiment>
Next, a second embodiment of the present invention will be described. As shown in FIG. 5, the second embodiment is different from the first embodiment described above in that a fan 105 is provided inside the blower tube 102. FIG. 5 is a diagram for explaining the fan 105 in the blower tube 102.

  As shown in FIG. 5, the fan 105 is provided inside the blower tube 102. The position of the fan 105 in the blower tube 102 is not particularly limited in the present invention. Further, the number of fans 105 is not particularly limited in the present invention. The fan 105 is rotated by a motor (not shown), for example, and plays a role of accelerating and sending the air that has entered the blower tube 102 from the opening 101 side to the nozzle 103 side.

  A motor switch (not shown) for rotating the fan 105 is provided, for example, near the driver's seat in the cab 200. That is, when the driver who has arrived at the driver's seat and drives the vehicle wants to send fresh air to the space between the cab 200 and the loading platform 300, the fan 105 is turned on when the driver turns on the air. The air in the blower tube 102 that rotates and is taken in from the opening 101 is forcibly sent to the nozzle 103 side. Thereby, fresh air is discharged from the nozzle 103, the temperature of the space between the cab 200 and the loading platform 300 can be lowered, and the intake air temperature of the engine can also be lowered.

<Third Embodiment>
Next, a third embodiment will be described. The third embodiment differs from the second embodiment described above in that it is determined whether to rotate the fan 105 according to the speed of the vehicle detected by the vehicle speed sensor 106.

  FIG. 6 is a block diagram showing an example of a block for controlling the rotation of the fan. As shown in FIG. 6, a vehicle speed sensor 106 and a fan rotation determination unit 107 are connected to the fan 105.

  The vehicle speed sensor 106 is a sensor that detects the current speed of the vehicle. The fan rotation determination unit 107 determines whether to rotate the fan 105 based on the current vehicle speed information input from the vehicle speed sensor 106. That is, the fan rotation determination unit 107 does not rotate the fan 105 when the current speed input from the vehicle speed sensor is equal to or higher than the predetermined speed, and rotates the fan 105 when the current speed is lower than the predetermined speed. Judge as follows.

  When the vehicle speed is equal to or higher than a predetermined speed, that is, for example, when the vehicle is traveling at a sufficient speed, it is assumed that the wind is blowing near the opening 101 of the air guide member 100 at a speed higher than a certain level. Is done. For this reason, when the vehicle speed is equal to or higher than a predetermined speed, it is assumed that a certain amount of air is taken in from the opening 101 and discharged from the nozzle 103 to the space between the cab 200 and the loading platform 300. On the other hand, when the vehicle speed is less than the predetermined speed, it is assumed that the wind hardly blows near the opening 101 of the air guide member 100 particularly in the weather without wind. That is, when the vehicle speed is lower than a predetermined speed, that is, for example, when the vehicle is running slowly or stopped, fresh air is not sent into the space between the cab 200 and the loading platform 300, There can be a situation where the space is filled with heat.

  Therefore, when the vehicle speed is less than the predetermined speed, the fan rotation determination unit 107 rotates the fan 105 and sends the air in the blower tube 102 to the nozzle 103 side, so that the cab 200, the loading platform 300, Fresh air can be forcibly released into the space between the two. Accordingly, fresh air can be sent to the space between the cab 200 and the loading platform 300 regardless of the speed of the vehicle.

<Fourth embodiment>
Next, a fourth embodiment will be described. As shown in FIG. 7, the fourth embodiment is different from the above-described first embodiment in that a lid 108 is attached to the front end portion of the air guide member 100. FIG. 7 is a diagram for explaining the lid 108.

  As shown in FIG. 7, the lid 108 is provided in the opening 101. When the lid 108 is opened, air is taken in from the opening 101, and when the lid 108 is closed, the opening 101 is blocked from outside air, and air is not taken in from the opening 101. On the other hand, when the lid 108 is closed, the air guide member 100 can regain the rectifying effect lost at the portion of the opening 101.

  FIG. 8 is a block diagram illustrating an example of a block that controls opening and closing of the lid 108. The temperature sensor 109 is a sensor that is attached to an arbitrary position in the space between the cab 200 and the loading platform 300 and detects the temperature of the space. The temperature sensor 109 is preferably attached near the intake port 202 of the intake duct 201.

  The lid open / close determination unit 110 determines whether or not to open the lid 108 based on the detection result of the temperature sensor 109. For example, when the temperature of the space between the cab 200 and the loading platform 300 detected by the temperature sensor 109 is equal to or higher than a predetermined temperature, the lid open / close determining unit 110 opens the lid 108 and the space is less than the predetermined temperature. If there is, it is determined to close the lid 108.

  The lid opening / closing device 111 is a device that opens and closes the lid 108 based on the determination result of the lid opening / closing determination unit 110, and includes, for example, a motor and a gear. The lid opening / closing determination unit 110 and the lid opening / closing device 111 are not shown in FIG.

  As described above, when the temperature sensor 109 detects that the temperature of the space between the cab 200 and the loading platform 300 is equal to or higher than the predetermined temperature, the lid open / close determining unit 110 determines to open the lid 108. For this reason, fresh air is supplied to the space by the air taken in from the opening 101, and the temperature of the space decreases. On the contrary, when the temperature sensor 109 detects that the temperature of the space between the cab 200 and the loading platform 300 is lower than the predetermined temperature, fresh air is supplied to the space between the cab 200 and the loading platform 300. It is assumed that it is not necessary. For this reason, the lid open / close determination unit 110 can determine to close the lid 108 and maximize the rectifying effect of the air guide member 100.

  INDUSTRIAL APPLICABILITY The present invention is suitable for a wind guide member that is mounted on the roof of a cab in a vehicle having a box-type cargo bed behind the cab.

DESCRIPTION OF SYMBOLS 100 Air guide member 101 Opening part 102 Blow pipe 103 Nozzle 104 Reinforcement member 105 Fan 106 Vehicle speed sensor 107 Fan rotation determination part 108 Cover 109 Temperature sensor 110 Cover opening / closing determination part 111 Cover opening / closing apparatus 200 Cab 201 Intake duct 202 Inlet 300

Claims (5)

In a vehicle equipped with a box-shaped cargo bed on the back side of the cab, a wind guide member mounted on the roof of the cab,
Of the air guide member, an opening provided at a position where the air resistance is the largest during travel of the vehicle,
A nozzle provided at the rear end of the cab;
A blower pipe connecting the opening and the nozzle;
A wind guide member. The nozzle is provided near an intake port of an intake duct of an engine provided in a space between a rear end portion of the cab and the loading platform.
The air guide member according to claim 1. The fan further includes a fan that forcibly sends the air in the blow pipe to the nozzle side by rotating.
The air guide member according to claim 1. A vehicle speed sensor for detecting the speed of the vehicle;
A fan rotation determination unit for determining whether to rotate the fan based on a detection result of the vehicle speed sensor;
The air guide member according to claim 3, further comprising: A lid provided in the opening so as to be openable and closable;
A temperature sensor that detects the temperature of the space between the rear end of the cab and the loading platform;
A lid open / close determining unit that determines whether to open the lid based on a detection result of the temperature sensor;
A lid opening and closing device for opening and closing the lid based on a determination result of the lid opening and closing determination unit;
The air guide member according to claim 1, further comprising:

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