vehicle

Abstract

To efficiently lay out the intake duct at the rear of the cabin. [Solution] In a vehicle equipped with a cargo bed (26) behind a cabin (11), the rear of the cabin (11) is provided with a recess (24D) that is recessed forward, and an intake duct (41) is housed in the recess (24D).

Description

Technical Field

[0001] The present invention relates to a vehicle.

Background Art

[0002] Patent Document 1 discloses a four-wheel buggy-type vehicle having a loading platform behind the cabin, an engine disposed at the lower rear part of the seat, and intake ducts disposed behind and below the loading platform.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the conventional configuration, a space for arranging the intake duct below the loading platform is required, and the layout efficiency of the entire vehicle may decrease. Further, when attempting to adopt a layout in which the intake duct is arranged not below the loading platform but behind the cabin, restrictions on the shape of the cabin and the arrangement of other components may occur, and the layout efficiency may deteriorate. The present invention has been made in view of the above circumstances, and an object thereof is to efficiently layout an intake duct behind a cabin.

Means for Solving the Problems

[0005] Provided is a vehicle having a loading platform behind a cabin, wherein a rear portion of the cabin has a recess recessed forward, and an intake duct is accommodated in the recess.

Effects of the Invention

[0006] According to the present invention, an intake duct can be efficiently laid out behind a cabin.

Brief Description of the Drawings

[0007] [Figure 1] This is a side view of a vehicle according to an embodiment of the present invention. [Figure 2] This is a rear view of the vehicle. [Figure 3] This diagram shows the cabin from the right rear, along with its surrounding configuration. [Figure 4] This diagram shows the intake duct and its surrounding components from the rear of the vehicle. [Figure 5] This diagram shows the internal structure of the air cleaner box along with its surrounding components. [Figure 6] This diagram shows the bottom surface of the airflow path in the intake duct body. [Figure 7] This diagram shows the intake duct with a cover attached, but with a portion of the cover removed. [Figure 8] This diagram shows the cover removed from the intake duct after it has been attached. [Figure 9] This figure shows the cross-sections a1-a1, b1-b1, and c1-c1 in Figure 7. [Figure 10] This diagram shows a modified cover from the right rear of the cabin. [Figure 11] This figure shows a cover according to another embodiment, together with an intake duct. [Modes for carrying out the invention]

[0008] Embodiments of the present invention will be described below with reference to the drawings. In the description, directions such as front, back, left, right, and up and down refer to directions relative to the vehicle body unless otherwise specified. In each figure, the symbol FR indicates the front of the vehicle body, the symbol UP indicates the top of the vehicle body, and the symbol LH indicates the left side of the vehicle body.

[0009] [Embodiment] Figure 1 is a side view of a vehicle 10 according to an embodiment of the present invention. Figure 2 is a rear view of the vehicle 10. Vehicle 10 comprises a cabin 11 that partitions the passenger compartment, a front body 13 located in front of the cabin 11, a rear body 15 located behind the cabin 11, a frame 17 extending front to rear below the cabin 11, a pair of front wheels 20, and a pair of rear wheels 21. Vehicle 10 is an off-road vehicle, more specifically a side-by-side MUV (Multi Utility Vehicle). However, vehicle 10 may also be an off-road vehicle other than an MUV, such as a four-wheeled or three-wheeled vehicle classified as an ATV, or a vehicle other than an off-road vehicle.

[0010] The cabin 11 contains seats for multiple occupants, including the driver and passengers, as well as controls such as a steering wheel. The cabin 11 is enclosed by a windshield 22 that covers the front, side doors 23 that can be opened and closed to cover the left and right sides of the seats, a rear panel 24 that covers the back, and a top panel 25 that covers the top. The shape and structure of the cabin 11 may be modified as appropriate; for example, it may be configured without side doors 23.

[0011] A cargo bed 26 is positioned above the rear body 15. The cargo bed 26 is used as a space for loading cargo. Additional passengers may be accommodated by placing rear seats on the cargo bed 26. The cargo bed 26 is of the open bed type and is equipped with side panels surrounding the cargo bed 26. However, the shape and structure of the cargo bed 26 may be modified as appropriate.

[0012] The frame 17 is equipped with a power unit 30 (Figure 2) for driving the vehicle. The power unit 30 is located below and behind the cabin 11 or below the rear body 15. The power unit 30 includes an engine 31 (Figure 4) consisting of an internal combustion engine, and the driving force of the engine 31 is transmitted to the drive wheels (front wheels 20 and rear wheels 21, or rear wheels 21) via a transmission mechanism and a power transmission mechanism. Figure 2 shows a schematic representation of the power unit 30.

[0013] Figure 3 shows the cabin 11 from the right rear, along with its surrounding configuration. As shown in FIGS. 2 and 3, the rear panel 24 of the cabin 11 is provided with a frame-shaped opening 24B on which the rear glass 24A is mounted, and a recess 24C is formed around the opening 24B so as to be recessed toward the front of the vehicle body. This recess 24C has a duct accommodation recess 24D for accommodating the intake duct 41. The duct accommodation recess 24D is located in a region below the opening 24B and to the right of the vehicle width center CL1, and is recessed toward the front side of the vehicle body. In FIG. 2, the region of the duct accommodation recess 24D is indicated by a dashed line.

[0014] As shown in FIG. 3, the intake duct 41 extends outward in the vehicle width direction along the lower edge of the opening 24B and fits into the duct accommodation recess 24D. Thereby, the intake duct 41 fits into the space existing below the opening 24B, behind the rear panel 24, and in front of the loading platform 26. A cover 51 that covers the intake opening 41K (FIG. 7) of the intake duct 41 is attached to the outer end of the intake duct 41 in the vehicle width direction.

[0015] As shown in FIG. 3, since the intake duct 41 is arranged in front of the loading platform 26, the luggage loaded on the loading platform 26 does not contact the intake duct 41. Also, since the opening 24B that protrudes rearward is located above the intake duct 41, it has a structure in which flying objects such as rainwater and mud from above are less likely to reach the intake duct 41. Further, since the intake duct 41 is located directly below the opening 24B, it is arranged at a relatively high position and is in a place where maintenance work is easy.

[0016] FIG. 4 is a view showing the intake duct 41 together with the surrounding configuration from the rear of the vehicle body. Note that the illustration of the loading platform 26 is omitted in FIG. 4. As shown in Figure 4, in a rear view of the vehicle body, the engine 31 is positioned at the center and bottom of the vehicle width of the vehicle 10. In a rear view of the vehicle body, the air cleaner box 61 is positioned above the engine 31. The air cleaner box 61 comprises a first box 62 to which air from the intake duct 41 is supplied, a second box 63 connected to the intake port of the engine 31 via a throttle body, and a connecting pipe 64 that connects the first box 62 and the second box 63. The air cleaner box 61 is sometimes simply referred to as the air cleaner.

[0017] Figure 5 shows the internal structure of the air cleaner box 61 along with its surrounding components. The second box 63 is positioned to the left of the vehicle width center CL1 (on the opposite side in the vehicle width direction from the duct housing recess 24D) and forms a so-called clean air chamber. A base 63A protruding upward is provided at the bottom 63T of the second box 63, and a funnel 65 is connected so as to penetrate vertically through the upper surface of the base 63A. The upper part of the funnel 65 opens into the second box 63, and the lower part of the funnel 65 is connected to the throttle body.

[0018] Since the funnel 65 is connected to the base 63A, even if water enters the second box 63, the water will remain below the top surface of the base 63A, preventing water from entering the connection point between the funnel 65 and the second box 63.

[0019] The first box 62 is positioned side-by-side with the second box 63 to the right (on the side of the duct housing recess 24D when viewed from the rear of the vehicle), forming a so-called intake air chamber. The first box 62 is provided with an intake duct connection section 62A that extends upward on the opposite side of the second box 63, and the intake duct 41 is connected to this intake duct connection section 62A. Furthermore, the first box 62 houses an air filter 67, and the air purified by the air filter 67 is supplied to the second box 63 through the connecting pipe 64.

[0020] The connecting pipe 64 is positioned to extend horizontally along the width of the vehicle and is located above the bottom 62T of the first box 62 and the bottom 63T of the second box 63. This makes it difficult for water to enter the connecting pipe 64 even if water enters the first box 62, thus preventing water from moving from the first box 62 to the second box 63. Similarly, it makes it difficult for water to enter the connecting pipe 64 even if water enters the second box 63, thus preventing water from moving from the second box 63 to the first box 62.

[0021] A drain valve 62V is provided at the bottom 62T of the first box 62. This drain valve 62V allows water that has entered the first box 62 to be quickly drained out of the first box 62. As shown in Figure 5, the air filter 67, the connecting pipe 64, and the bottom 63T of the second box 63 are located above the drain valve 62V. In other words, the drain valve 62V is located at the very bottom of the air cleaner box 61, allowing water flowing to the bottom to be quickly drained.

[0022] The intake duct 41 and related components will be described further. As shown in Figures 4 and 5, the intake duct 41 includes an intake duct body 42 that extends in the vehicle width direction along the duct housing recess 24D, and a cylindrical bent portion 43 that bends downward from the downstream end (the inner end in the vehicle width direction) of the intake duct body 42.

[0023] Figure 6 shows the bottom surface of the airflow path of the intake duct body 42 as indicated by the dashed line X. As shown in Figure 6, the bottom surface X of the intake duct 41 has a sloping shape that gradually slopes downward toward the intake opening 41K (Figure 7) at the outer end in the vehicle width direction (cover 51 side). Therefore, even if water enters the intake duct 41, it can be directed toward the intake opening 41K.

[0024] Furthermore, the bottom surface X of the intake duct 41 is provided with stepped sections 41D at intervals along its longitudinal direction (vehicle width direction), where the height changes in a step-like manner. A step-like change in height can also be described as a shape where the height changes in a staircase-like manner, or a shape where the angle changes sharply in the vertical direction. If water were to enter the intake duct 41, it would be difficult for the water to overcome the stepped sections 41D, thus effectively preventing the water from moving downstream of the intake duct 41. As a result, even if lateral G forces are applied while driving, the movement of water downstream of the intake duct 41 can be suppressed.

[0025] Next, with reference to Figures 4 and 6, the resonators (first resonator 71, second resonator 72) connected to the intake duct 41 will be described. As shown in Figure 4, the first resonator 71 is positioned below the intake duct body 42 and on the outside in the vehicle width direction of the bent portion 43. The first resonator 71 is positioned so as to overlap with the duct housing recess 24D provided in the rear panel 24 when viewed from the rear of the vehicle body. In other words, the first resonator 71 is positioned using the space available in the duct housing recess 24D below the intake duct body 42 and on the outside in the vehicle width direction of the bent portion 43.

[0026] In this configuration, as shown in Figure 6, the bottom surface X of the intake duct 41 has a sloping shape that becomes lower toward the upstream side (outer end in the vehicle width direction), so that the space above increases toward the downstream side. The first resonator 71 is positioned by making effective use of this space above.

[0027] The first resonator 71 is connected to the bent section 43 via a connecting pipe 71A that is directed inward in the vehicle width direction, corresponding to the downstream side of the intake duct 41. The first resonator 71 is configured as a resonator that reduces intake noise by utilizing the principle of resonance. This effectively reduces the intake noise generated at the bent section 43. Figure 5 shows the bottom surface of the flow path of the connecting pipe 71A as indicated by the dashed line Y1. The bottom surface Y1 of the flow path of the connecting pipe 71A has a sloping shape that gradually slopes downward toward the intake duct 41, so that even if water enters from the intake duct 41 side, it does not accumulate and is quickly returned to the intake duct 41 side. This makes it difficult for water to enter the first resonator 71.

[0028] As shown in Figures 4 and 5, a second resonator 72 is positioned on the opposite side of the intake duct 41 from the first resonator 71. The second resonator 72 is positioned so as to overlap with the duct housing recess 24D provided in the rear panel 24 when viewed from the rear of the vehicle body. In other words, the second resonator 72 is positioned using the space in the duct housing recess 24D that is inward in the vehicle width direction relative to the intake duct body 42 and above the air cleaner box 61. The second resonator 72 is positioned above the air cleaner box 61 and overlaps with the air cleaner box 61 in the vertical direction.

[0029] The second resonator 72 is connected to the bend 43 via a connecting pipe 72A that is directed outward in the vehicle width direction. The second resonator 72, like the first resonator 71, is configured as a resonator that reduces intake noise by utilizing the principle of resonance. In this way, the intake noise generated at the bend 43 can be effectively reduced by the multiple resonators 71 and 72. Since the bend 43 is a place where intake noise is easily amplified, the intake noise of the intake duct 41 can be effectively reduced. Furthermore, since the driver's seat of the vehicle 10 is on the left side and the intake duct 41 is located on the right side, intake noise is less likely to be transmitted to the driver's seat, which is advantageous for improving occupant comfort.

[0030] Figure 5 shows the bottom surface of the flow path of the connecting pipe 72A with a dashed line Y2, and the bottom surface of the second resonator 72 with a dashed line Y3. The bottom surface Y2 of the flow path of the connecting pipe 72A has a sloping shape that gradually slopes downward toward the intake duct 41, and the bottom surface Y3 of the second resonator 72 has a sloping shape that gradually slopes downward toward the connecting pipe 72A. As a result, even if water enters from the intake duct 41 side, it does not accumulate and is quickly returned to the intake duct 41 side, making it difficult for water to enter the second resonator 72.

[0031] Next, with reference to Figures 7 to 9, the intake opening 41K and cover 51 of the intake duct 41 will be described. Figure 7 shows the intake duct 41 with the cover 51 attached, but with a portion of the cover 51 removed. The cover 51 is detachably fixed to the outer end (right end) of the intake duct 41 in the vehicle width direction by a fastening member 81, and by removing this cover 51, the intake opening 41K formed at the outer end of the intake duct 41 in the vehicle width direction is exposed. The intake opening 41K is formed in a downward-convex shape, where its width (corresponding to the front-to-back length in this configuration) gradually narrows towards the bottom. Therefore, if water enters the intake opening 41K from the outside, the water can be collected in the narrow area at the bottom.

[0032] Figure 8 shows the cover 51 removed from the intake duct 41 after it has been attached. The cover 51 integrally comprises a flat cover body 52 that covers the intake opening 41K from the outside in the vehicle width direction, and a surrounding wall 53 (hereinafter referred to as the cover surrounding wall 53) that extends from the outer edge of the cover body 52 to cover the intake duct 41 from the left, right, top, and bottom. The cover surrounding wall 53 has left and right side plates 54A, 54B (hereinafter referred to as the cover side plates 54A, 54B), an upper plate 55 (hereinafter referred to as the cover upper plate 55) that bridges the upper ends of the left and right cover side plates 54A, 54B, and a lower plate 56 (hereinafter referred to as the cover lower plate 56) that bridges the lower ends of the left and right cover side plates 54A, 54B.

[0033] The cover body 52 is provided with a first opening 52K1 facing the intake opening 41K. The first opening 52K1 is provided with an inclined cover portion 52C that slopes outward and downward, spaced apart vertically. This allows outside air to be smoothly supplied into the intake duct 41 from the side facing the intake opening 41K. In addition, water (e.g., rainwater) from the side facing the intake opening 41K can be guided outward and downward by the inclined cover portion 52C, thereby suppressing water from entering the cover 51.

[0034] The left and right side plates 54A and 54B of the cover 51 are each provided with stays 58 that are fastened to the intake duct 41 by fastening members 81. Furthermore, the lower plate of the cover 51 is also provided with left and right stays 58 that are fastened to the intake duct 41 by fastening members 81. The left and right stays 58 extend downward from the lower plate 56 of the cover, and the lower plate 56 has grooves 59 that communicate with the gap between the left and right stays 58. Water that enters the intake opening 41K flows into the groove 59, thereby discharging the water outside the cover 51. In other words, the groove 59 functions as a drainage channel.

[0035] The left and right cover side plates 54A and 54B are each provided with a notch 54C (hereinafter referred to as the cover side notch 54C) cut into the cover body 52 side. Figure 9 shows the cross-sections a1-a1, b1-b1, and c1-c1 of Figure 7. In Figure 9, the external airflow is indicated by the symbols Wr, Wf, and WL, respectively. As shown in the a1-a1 cross-section of Figure 9, the left and right cover side cutouts 54C form a pair of second openings 52K2 that introduce air Wf from the front of the vehicle body and air Wr from the rear of the vehicle body into the intake opening 41K. The second openings 52K2 are formed in the cover side plates 54A and 54B respectively, and are located at the front and rear of the vehicle body of the cover 51.

[0036] As shown in the b1-b1 cross section of Figure 9, in the areas where the left and right cover side cutouts 54C are not formed on the cover side plates 54A and 54B, no opening is formed between the cover side plates 54A and 54B and the intake duct 41.

[0037] As shown in the c1-c1 cross section of Figure 9, the upper cover plate 55 and the lower cover plate 56 are formed with a gap between them and the intake duct 41 that opens in the opposite direction to the first opening 52K1. This creates a pair of third openings 52K3 that allow air WL from the inside in the vehicle width direction to be introduced into the intake opening 41K. The second opening 52K2 and the third opening 52K3 can be described as openings formed in the cover 51. Furthermore, these openings 52K2 and 52K3 are formed at different positions from the first opening 52K1 and open to the outside in a different direction from the first opening 52K1. As a result, air can be drawn into the intake duct 41 from multiple directions through the first opening 52K1, the second opening 52K2, and the third opening 52K3, which is advantageous for increasing the intake volume.

[0038] As shown in the cross-section a1-a1 in Figure 9 and in Figure 7, the intake duct 41 is provided with protrusions 45 around the second opening 52K2. The protrusions 45 project in the front-rear direction outside the opening of the second opening 52K2, making it difficult for water from the outside to enter the second opening 52K2. Furthermore, as shown in the c1-c1 cross section, the intake duct 41 is provided with protrusions 46 around the third opening 52K3. The protrusions 46 protrude upward and downward, respectively, to narrow the opening of the third opening 52K3, thereby making it difficult for water from the outside to enter the third opening 52K3.

[0039] As described above, the vehicle 10 of this embodiment is provided with a duct housing recess 24D at the rear of the cabin 11 that is recessed forward, and the intake duct 41 is housed in the duct housing recess 24D. With this configuration, the intake duct 41 does not protrude from the cabin 11, so the intake duct 41 can be efficiently laid out at the rear of the cabin 11. In addition, when cargo is loaded on the cargo bed 26, the cargo does not come into contact with the intake duct 41. Note that the duct housing recess 24D is an example of a recess in this disclosure.

[0040] Furthermore, the bottom surface X of the intake duct 41 has a sloping shape that gradually slopes downward towards the intake opening 41K provided at the end of the intake duct 41. This allows water that enters the intake duct 41 to be discharged through the intake opening 41K.

[0041] Furthermore, the bottom surface X of the intake duct 41 has a stepped section 41D whose height changes in a step-like manner, and the first resonator 71 is positioned in the space created below the intake duct 41 as the bottom surface X of the intake duct 41 becomes lower toward the intake opening 41K. The stepped section 41D prevents water that has entered the intake duct 41 from going further inside, even when lateral G is applied during driving. In addition, the intake duct 41 and the first resonator 71 can be arranged compactly, and the first resonator 71 can be efficiently laid out near the rear of the cabin 11.

[0042] Furthermore, it is equipped with a cover 51 that covers the intake opening 41K, and a groove 59 that functions as a drainage channel is provided at the bottom of the cover 51. This allows water that enters the intake opening 41K to be discharged from the bottom of the cover 51.

[0043] Furthermore, the width of the intake duct 41 gradually narrows downwards. This allows water that enters the intake duct 41 to be smoothly discharged from the groove 59 of the cover 51.

[0044] Furthermore, the cover 51 is provided with a first opening 52K1 facing the intake opening 41K, and the first opening 52K1 is provided with an inclined cover portion 52C that slopes downward toward the outside of the opening. This prevents rainwater and other elements from entering. Because it faces the intake opening 41K, it allows for efficient intake of air.

[0045] Furthermore, the cover 51 is provided with a second opening 52K2 in a different location from the first opening 52K1, and the second opening 52K2 is provided at the front and rear of the vehicle body relative to the first opening 52K1. This increases the intake volume compared to the case where only the first opening 52K1 is provided, and furthermore, by positioning the second opening at the rear of the cabin 11, either at the front or rear of the vehicle body, it is possible to suppress the intrusion of rainwater and other elements into the second opening while driving. The intake volume can be increased by providing the second opening 52K2 at at least one of the front and rear of the vehicle body relative to the first opening 52K1.

[0046] Furthermore, the cover 51 is provided with a third opening 52K3 that opens to the outside in the opposite direction to the first opening 52K1. This allows the intake volume to be increased by the third opening 52K. Since the third opening 52K3 opens inward in the vehicle width direction at the rear of the cabin 11, the intrusion of rainwater and other elements into the third opening 52K3 can be suppressed.

[0047] Furthermore, the intake duct 41 is equipped with a protruding portion 45 that extends around the second opening 52K2 in a manner that suppresses the intrusion of water from the outside. This allows the protruding portion 45 to suppress the intrusion of rainwater and other liquids into the second opening 52K2.

[0048] Furthermore, the intake duct 41 is equipped with a protruding portion 46 that extends around the third opening 52K3 in a manner that suppresses the intrusion of water from the outside. This allows the protruding portion 46 to suppress the intrusion of rainwater and other liquids into the third opening 52K3.

[0049] Furthermore, the intake duct 41 has an intake duct body 42 with an intake opening 41K at one end in the longitudinal direction, and a bent portion 43 at the other end in the longitudinal direction of the intake duct body 42, to which the first resonator 71 is connected. This effectively reduces intake noise generated at the bent portion 43, where intake noise is easily amplified. In addition, the intake duct 41 can be efficiently laid out by utilizing the space formed between the intake duct body 42 and the bent portion 43.

[0050] Furthermore, a second resonator 72 is provided, which is another resonator connected to the bent section 43. The second resonator 72 is positioned on the opposite side of the intake duct 41 from the first resonator 71. As a result, multiple resonators 71 and 72 are connected to the bent section 43, which effectively reduces intake noise. In addition, the space formed on both sides of the intake duct 41 allows for an efficient layout of the multiple resonators 71 and 72.

[0051] Furthermore, the bent section 43 is connected to the air cleaner box 61, and the air cleaner box and the second resonator 72 overlap in the vertical direction of the vehicle body. This allows the air cleaner box 61 and the second resonator 72 to be arranged compactly and efficiently.

[0052] Furthermore, the air cleaner box 61 includes a first box 62 to which air from the intake duct 41 is supplied, and a drain valve 62V for discharging water that has entered the first box 62 is provided at the bottom 62T of the first box 62. Downstream of the first box 62 is a second box 63 connected to the first box 62 via a connecting pipe 64. The bottom 63T of the second box 63 is positioned above the drain valve 62V, and the connecting pipe 64 is positioned above the bottom 62T of the first box 62. This allows water that has entered the first box 62 to be discharged. In addition, it makes it difficult for water in the first box 62 to enter the second box 63.

[0053] Furthermore, the second box 63 is equipped with a funnel 65, which is connected to the second box 63 above the bottom 63T of the second box 63. This prevents water from seeping into the connection between the funnel 65 and the second box 63 even if water enters and accumulates inside the second box 63.

[0054] Furthermore, since vehicle 10 is an off-road vehicle, it may be splashed with water when driving on rough terrain, but water can be prevented from entering the intake system, including the intake duct 41 and the air cleaner box 61. In addition, since intake noise is reduced, the sound transmitted to the occupants from the intake duct 41 located in the duct housing recess 24D at the rear of the cabin 11 is also suppressed. Therefore, an off-road vehicle that achieves both prevention of water intrusion into the intake system and reduction of intake noise can be realized.

[0055] [Other embodiments] The above embodiments represent only one aspect of the present invention and can be modified and applied as needed without departing from the spirit of the invention.

[0056] For example, the shape of the cover 51 may be changed to the shape shown in Figures 10 and 11. Figure 10 is a diagram showing the cover 51 according to another embodiment, viewed from the right rear of the cabin 11. Figure 10 schematically shows the airflow Wa and Wb when the vehicle is in motion. Figure 11 shows a cover 51 according to another embodiment together with an intake duct 41, where reference numeral a2 in Figure 11 indicates the intake duct 41 viewed from the right rear, and reference numeral b2 indicates the intake duct 41 viewed from the right front. As shown in Figures 10 and 11, the cover 51 according to another embodiment includes a diagonal front intake opening 52K1a that extends continuously from the outside in the vehicle width direction to the front of the vehicle body as a first opening 52K1 facing the intake opening 41K, and a rear cover portion 52C1 that covers the diagonal front intake opening 52K1a from the rear. Furthermore, the modified cover 51 is provided with horizontally extending fins 52F at vertical intervals in the first opening 52K1. Components similar to those in the cover 51 of the above embodiment are denoted by the same reference numerals, and redundant explanations are omitted.

[0057] As shown in Figure 10, around the cover 51, in addition to the airflow Wa that flows from the front of the vehicle body to the rear along the side of the cabin 11, an airflow Wb that curves around to the front at the rear of the cabin 11 is generated. The modified cover 51 has an oblique front intake opening 52K1a that extends continuously from the outside in the vehicle width direction to the front of the vehicle body, so that it can preferentially draw in air (driving air Wa) between it and the cabin 11. Furthermore, this air can be smoothly guided into the cabin 11 by the fins 52F and foreign matter can be prevented from entering. In addition, since the cover 51 does not open obliquely to the rear or to the rear, the rear cover portion 52C1 can suppress the entry of driving air Wb that is drawn in from the rear. As a result, the entry of dust and water at a location away from the cabin 11 can be suppressed.

[0058] In addition, in the cover 51 shown in Figures 10 and 11, instead of the horizontally extending fins 52F, inclined covering portions 52C that slope outward and downward from the opening may be provided at a distance from the top and bottom. The inclined covering portions 52C can guide water from the outside (e.g., rainwater) outward and downward, thereby further suppressing water intrusion into the cover 51. The inclined covering portions 52C can also be called inclined fins.

[0059] Furthermore, although the present invention has been described in the context of applying it to the intake duct structure of vehicle 10 shown in Figure 1, etc., it is not limited to this and may be applied to the intake duct structure of other vehicles. In addition, the shape and structure of each part of the intake duct 41 may be appropriately modified. For example, the number, shape, and position of the resonators (first resonator 71, second resonator 72) may be changed, or a configuration without resonators may be adopted.

[0060] [Configurations supported by the above embodiment] The above embodiment supports the following configuration.

[0061] (Configuration 1) A vehicle having a cargo bed behind the cabin, wherein the rear of the cabin has a recess that is recessed forward, and an intake duct is housed in the recess. This configuration allows for an efficient layout of the intake duct at the rear of the cabin.

[0062] (Configuration 2) The vehicle according to Configuration 1, wherein the bottom surface of the airflow path of the intake duct has a sloping shape that gradually slopes downward toward the intake opening provided at the end of the intake duct. With this configuration, even if water enters the intake duct, it can be discharged through the intake opening.

[0063] (Configuration 3) The vehicle according to Configuration 2, wherein the bottom surface of the intake duct has stepped sections whose height changes in a stepped manner, and a resonator is arranged in the space created below the intake duct as the bottom surface of the intake duct becomes lower toward the intake opening. With this configuration, the stepped section prevents water that has entered the intake duct 41 from going further inside, even when lateral G-forces are applied during driving. In addition, the intake duct 41 and the first resonator 71 can be arranged compactly, and the first resonator 71 can be efficiently laid out near the rear of the cabin 11.

[0064] (Configuration 4) The vehicle according to Configuration 2 or 3, further comprising a cover that covers the intake opening and a drainage groove at the lower part of the cover. With this configuration, water that enters the intake opening can be discharged from the bottom of the cover.

[0065] (Configuration 5) The vehicle according to Configuration 4, wherein the width of the intake duct gradually narrows downwards. With this configuration, water that enters the intake duct can be smoothly drained through the drainage groove in the cover.

[0066] (Configuration 6) The vehicle according to any one of Configurations 3 to 5, wherein the cover has a first opening facing the intake opening, and the first opening is provided with an inclined covering portion that slopes downward toward the outside of the opening and an oblique front intake opening that extends continuously from the outside in the vehicle width direction toward the front of the vehicle body. With this configuration, the first opening opposite the intake opening allows for efficient intake, while the inclined cover prevents the intrusion of rainwater and other elements. Furthermore, the angled front intake opening effectively draws in air flowing from the side of the cabin towards the rear, and because the cover does not open diagonally to the rear or to the rear, it prevents the intrusion of dust and water contained in the airflow swirling in from the rear while driving.

[0067] (Configuration 7) The vehicle according to any one of Configurations 2 to 6, wherein the cover has a first opening facing the intake opening and a second opening at a location different from the first opening, and the second opening is located at least one of the front and rear of the vehicle body relative to the first opening. This configuration allows for an increase in intake volume compared to having only the first opening. Furthermore, by positioning the second opening at the rear of the cabin, either at the front or rear of the vehicle body, it is possible to suppress the ingress of water and other substances into the second opening while driving.

[0068] (Configuration 8) The vehicle according to Configuration 6 or 7, wherein the cover has a third opening that opens to the outside in the opposite direction to the first opening. This configuration allows for an increase in intake air volume through the third opening. Furthermore, because the third opening is located at the rear of the cabin and opens inward in the vehicle width direction, it is possible to suppress the intrusion of water and other substances into the third opening.

[0069] (Configuration 9) The vehicle according to Configuration 8, wherein the intake duct has protrusions around the second opening and / or the third opening. With this configuration, the protruding portion can prevent water from entering the second and / or third openings.

[0070] (Configuration 10) The vehicle according to any one of Configurations 2 to 9, wherein the intake duct has an intake duct body having the intake opening at one end in the longitudinal direction, and the intake duct body has a bent portion at the other end in the longitudinal direction, and the resonator is connected to the bent portion. This configuration effectively reduces intake noise generated in bent sections where intake noise is easily amplified.

[0071] (Configuration 11) The vehicle according to Configuration 10, further comprising another resonator connected to the bent portion, wherein the other resonator is located on the opposite side of the intake duct from the resonator. This configuration allows for effective reduction of intake noise because multiple resonators are connected to the bend. Furthermore, the space formed on both sides of the intake duct allows for efficient layout of the multiple resonators.

[0072] (Configuration 12) The vehicle according to Configuration 16, wherein the bent portion is connected to an air cleaner box, and the air cleaner box and the other resonator overlap in the vertical direction of the vehicle body. This configuration allows for a compact arrangement of the air cleaner box and the second resonator, enabling efficient layout of these components.

[0073] (Configuration 13) The vehicle according to Configuration 12, wherein the air cleaner box comprises a first box to which air from the intake duct is supplied, a drain valve for discharging water that has entered the first box at the bottom of the first box, a second box downstream of the first box connected to the first box via a connecting pipe, the bottom of the second box positioned above the drain valve, and the connecting pipe positioned above the bottom of the first box. This configuration allows water that has entered the first box to be drained. Furthermore, it makes it more difficult for water in the first box to enter the second box.

[0074] (Configuration 14) The vehicle according to Configuration 13, wherein a funnel is provided in the second box, and the funnel is connected to the second box above the bottom of the second box. With this configuration, even if water enters and accumulates inside the second box, it is possible to prevent water from seeping into the connection between the funnel and the second box. [Explanation of Symbols]

[0075] 10 vehicles 11 cabins 24D Duct housing recess 26 cargo bed 41 Intake duct 41K intake opening 41D Stepped section 42 Intake duct body 43. Bending section 45,46 Protrusion 51 Cover 52K1 1st opening 52K1a Diagonal front intake opening 52K2 2nd opening 52K3 3rd opening 52C Inclined cover section 59. Drainage section (drainage ditch) 61 Air Cleaner Box 62 Box 1 63 Box 2 64 Communication pipe 65 Funnel 71 First resonator 72. Second resonator (other resonators)

Claims

1. In a vehicle equipped with a cargo bed (26) behind the cabin (11), The rear of the cabin (11) is provided with a recess (24D) that is recessed forward, The intake duct (41) is housed in the recess (24D). vehicle.

2. The bottom surface of the intake duct (41) has a sloping shape that gradually slopes downward toward the intake opening (41K) provided at the end of the intake duct (41). The vehicle according to claim 1.

3. The bottom surface of the airflow path of the intake duct (41) has a stepped portion (41D) whose height changes in a step-like manner. The resonator (71) is positioned in the space created below the intake duct (41) as the bottom surface of the flow path of the intake duct (41) slopes downward toward the intake opening (41K). The vehicle according to claim 2.

4. The intake opening (41K) is covered by a cover (51), A drainage channel (59) is provided at the lower part of the cover (51). The vehicle according to claim 3.

5. The width of the intake duct (41) gradually narrows downwards. The vehicle according to claim 4.

6. The cover (51) is provided with a first opening (52K1) facing the intake opening (41K), The first opening (52K1) is provided with an inclined cover portion (52C) ​​that slopes downward toward the outside of the opening, and an oblique front intake opening (52K1a) that extends continuously from the outside in the vehicle width direction toward the front of the vehicle body. The vehicle according to claim 5.

7. The cover (51) has a first opening facing the intake opening (41K), and a second opening (52K2) at a location different from the first opening (52K1). The second opening (52K2) is provided at least on either the front or rear side of the vehicle body relative to the first opening (52K1). The vehicle according to claim 2.

8. The cover (51) includes a third opening (52K3) that opens to the outside in the opposite direction to the first opening (52K1). The vehicle according to claim 7.

9. The intake duct (41) is provided with protrusions (45, 46) around the second opening (52K2) and / or the third opening (52K3). The vehicle according to claim 8.

10. The intake duct (41) has an intake duct body (42) having the intake opening (41K) at one end in the longitudinal direction, and a bent portion (43) at the other end in the longitudinal direction of the intake duct body (42), The resonator (71) is connected to the bent portion (43). The vehicle according to claim 3.

11. The bending portion (43) is connected to another resonator (72), The other resonator (72) is positioned on the opposite side of the intake duct (41) from the resonator (71). The vehicle according to claim 10.

12. The bent portion (43) is connected to the air cleaner box (61), The air cleaner box (61) and the other resonator (72) overlap in the vertical direction of the vehicle body. The vehicle according to claim 11.

13. The air cleaner box (61) includes a first box (62) to which air from the intake duct (41) is supplied. The bottom (62T) of the first box (62) is provided with a drain valve (62V) for discharging water that has entered. Downstream of the first box (62), there is a second box (63) connected to the first box (62) via a connecting pipe (64). The bottom (63T) of the second box (63) is positioned above the drain valve (62V), and the connecting pipe (64) is positioned above the bottom (62T) of the first box (62). The vehicle according to claim 12.

14. The second box (63) is provided with a funnel (65), The funnel (65) is connected to the second box (63) above the bottom (63T) of the second box (63). The vehicle according to claim 13.

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