JP2008179286A - Mud guard device of four-wheel vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mud guard capable of effectively blocking flying stones or the like. <P>SOLUTION: A front wheel mud guard 25 is mounted on a front fender 17 behind a front wheel 2, and arranged in a forwardly and outwardly opened state. An under-body mud guard 51 is arranged in the right-to-left direction along a second cross member 42 of a vehicle body frame. The under-body mud guard 51 is backwardly tilted so that an outer end is slightly tilted backwardly, and an outer end 51a is located forward of an inner end 25a of the front wheel mud guard 25. A part in a vicinity of the outer end 51a of the under-body mud guard 51 and a part in a vicinity of the inner end 25a of the front wheel mud guard 25 form overlap parts 57, 58 overlapping each other in the longitudinal direction, and a space 59 is formed between the overlap parts 57, 58. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present application relates to a mudguard device for a four-wheel vehicle including a front wheel mudguard and a lower body mudguard.

A four-wheel vehicle is disclosed in which a fuel tank is provided at a position behind the front wheel at the bottom of the vehicle body (see Patent Document 1). In such a vehicle, a front wheel mud guard is provided immediately after the front wheel as a mud guard, and the inner part of the vehicle body is slanted inward and forward of the vehicle body, in order to prevent the stepping stones that the front wheel has bounced up while driving. There is also known one provided below the vehicle body frame (see Patent Document 2). Such a mudguard provided below the vehicle body frame is referred to as a vehicle body lower mudguard.
JP 2006-8104 A JP-A-8-207831

As described above, in the structure where the front wheel mudguard and the underbody mudguard are integrated, when the vehicle height is low, the stepping stones such as pebbles jumped up to the front wheel are pushed up to the next stepping stone before falling It may remain inside the mudguard while driving. In particular, it tends to accumulate at the corner that turns from the front wheel mudguard to the underbody mudguard. In Patent Document 2, this corner portion is disposed long in the vehicle width direction behind the front wheel, and the portion extending inward of the vehicle body from the front wheel is a part of the vehicle body frame along the side frame extending in the front-rear direction. Further, the mud guard configured to extend to the inside of the vehicle body corresponds to a corner portion formed between a portion immediately behind the front wheel and a portion along the side frame.
In vehicles equipped with mudguards that have such easy-to-store parts as stepping stones, there is a need for a structure that can reliably drop stepping stones from the mudguards while preventing stepping on fuel tanks and electrical components placed behind the front wheels. It was. The present application aims to realize such a request.

In order to solve the above-mentioned problems, the invention of claim 1 relating to a mudguard device for a four-wheel vehicle includes a front-wheel mudguard provided with wheels on the front, rear, left, and right of the body frame, and suspended from the left and right pair of front wheels, In a mudguard device for a four-wheeled vehicle, including a lower mudguard provided below the vehicle body frame at a position inside the vehicle body between the front wheel mudguards.
The underbody mudguard is arranged in the vehicle width direction from the vicinity of the front wheel mudguard toward the inside of the vehicle body,
When viewed from the front of the vehicle body, the outer end of the lower mudguard in the vehicle width direction that is the outermost side of the vehicle body and the inner end of the front wheel mudguard in the widthwise direction of the vehicle that are located at the innermost side of the vehicle body While overlapping with an interval in the front-rear direction,
A gap for communicating the inside and outside of the vehicle body is provided between an inner end portion of the front wheel mud guard located on the front side and an outer end portion of the lower vehicle body mud guard located on the rear side.

  A second aspect of the present invention is characterized in that, in the first aspect, the gap is opened obliquely in the front-rear direction and is not visible from the front of the vehicle body.

According to a third aspect of the present invention, in the first aspect, the front wheel mudguard is inclined to be opened outwardly in a plan view, and the underbody mudguard is inclined to be a front concavity in a plan view.
The inner end portion of the front wheel mudguard is disposed behind the outer end portion of the lower mudguard of the vehicle body.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, a fuel tank is disposed behind the underbody mudguard and a harness is disposed behind the front mudguard.

According to a fifth aspect of the present invention, in the first aspect, electrical components are arranged behind the front wheel mudguard and the underbody mudguard.

According to the first aspect of the present invention, the inner end portion of the front wheel mudguard and the outer end portion of the lower mudguard on the vehicle body overlap with each other in the front-rear direction, and the vehicle body located on the rear side and the inner end portion of the front wheel mudguard located on the front side. Since a gap is formed between the outside end of the lower mudguard and the inside and outside of the vehicle body,
By appropriately setting the size of the gap, it is possible to prevent falling stones as much as possible and drop them from the gaps before the falling stones accumulate.
Further, since the outer end portion of the lower mudguard under the vehicle body and the inner end portion of the front wheel mudguard overlap each other when viewed from the front, it is possible to prevent stepping stones moving backward in the wide range of the vehicle width direction by the mudguard.

According to the second aspect of the present invention, since the gap is opened obliquely in the front-rear direction, it is possible to make it difficult for a stepping stone going backward to enter the gap.
Also, some of the stepping stones that hit the underbody mudguard that moved to the side instead of falling immediately will move to the front wheel mudguard and then fall sufficiently toward the inside of the car from the gap after slowing down sufficiently. Therefore, it is possible to reliably drop the stepping stone with the mudguard.

  According to the invention of claim 3, since the underbody mudguard is inclined to the front concavity, a part of the stepping stone hitting the underbody mudguard is guided to the outside along the inclination. Make it easier to move to. The stepping stones that have moved to the front wheel mudguard are easily guided to the gap along the inclined surface of the front wheel mudguard because the front wheel mudguard is inclined outwardly toward the front.

  According to the invention of claim 4, since the fuel tank is arranged behind the lower mudguard under the vehicle body and the harness is arranged behind the front wheel mudguard, it is possible to prevent the flying stones from hitting them.

According to the fifth aspect of the present invention, since the electrical component is disposed behind the front wheel mudguard and the underbody mudguard, it is possible to prevent a flying stone from hitting the electrical component.

  An embodiment will be described below with reference to the drawings. In the following description, the upper and lower sides and the front and rear sides are based on the state shown in FIG.

  FIG. 1 is a side view of a small four-wheeled vehicle according to the present application. This vehicle includes a front wheel 2 and a rear wheel 3 before and after a body frame 1 and a front wheel steering mechanism 5 in front of a front seat 4 for a driver D provided at the center of the vehicle body. The front seat 4 comprises a seat portion, is supported on the container 4a, and the front end is pivotably attached by a hinge 4b. When the front seat 4 is opened, the opening of the container 4a is opened to allow articles to enter and exit. It is. The container 4a is large enough to accommodate a large article such as a helmet.

Behind the front seat 4, a separate backrest 6 is supported on a pedestal 7 protruding from the floor panel and is slidable in the front-rear direction.
A center grip 8 extends rearward from the backrest 6 so that the passenger P can grip it when sitting and getting on and off.
A side grip 9 and a rear seat 10 are provided behind the backrest 6.

A power unit 11 is provided below the seat portion of the rear seat 10, and the rear wheel 3 is driven by the power unit 11.
The power unit 11 is swingably supported on the vehicle body frame 1 by a link (not shown) and is of a fuel injection (FI) type. A fuel tank 13 is arranged behind the container 7. 14 is a fuel pump, and 15 is an air cleaner.

  A front portion of the vehicle body is covered with a front cover 16, and a part thereof forms a front fender 17 and covers the front wheel 2 from the front side and the upper side to the rear side. The front part of the vehicle interior is covered with an inner panel 18. 19 is a mirror and 20 is a bar handle. The bar handle 20 forms part of the front wheel steering mechanism 5 and is steered by the driver D behind the upper part of the inner panel 18. The front part of the vehicle interior space S is covered with a wind screen 21 and the upper part is covered with a roof 22. The front portion of the roof 22 is supported by a front pillar 23 inclined rearward, and the wind screen 21 is also supported by the front pillar 23. The rear portion of the roof 22 is supported by a substantially upright rear pillar 24. The lower ends of the front pillar 23 and the rear pillar 24 are supported on the body frame 1 side.

  In the figure, reference numeral 25 denotes a front wheel mud guard, 26 denotes a change pedal, 27 denotes a change cable, 28 denotes an armrest, and 29 denotes a rear cover. A part of the rear cover 29 forms a rear fender 29a and covers the rear side from the front side and the upper side of the rear wheel 3.

  FIG. 2 is a plan view of the vehicle (the wind screen 21 and the roof 22 are omitted). The front wheel 2 and the rear wheel 3 are provided as a pair of left and right. The rear seat 10 is sized such that two people can be seated side by side to the left and right, and the occupants of the rear seat 10 can put their feet on the floor panel 30 on the side of the front seat 4. The front wheel steering mechanism 5 and the front seat 4 are disposed on the vehicle body center line C, and the bar handle 20 extends in the left-right direction and is operated with both hands of the driver D. The front seat 4 is located substantially at the center of the floor panel 30.

  The side grips 9 are provided on the left and right sides of the center grip 8 and cross the front of the passenger P in the left-right direction so that the passenger P can be gripped when sitting. The side grip 9 is rotatably supported at one end on the armrest 28, and can be rotated so that the other end on the inner side of the vehicle body jumps upward around a connecting shaft with the armrest 28 when getting on and off (FIG. 1). reference).

  3 is a side view of the vehicle body frame 1, and FIG. 4 is a plan view. The vehicle body frame 1 includes a side beam 31 that extends substantially linearly in the front-rear direction, oblique beams 32 and 33 provided at the front and rear portions thereof, and reinforcing members 34 that connect the oblique beams 32 and 33 and the side beam 31. 35, a front bumper portion 36 provided at the front end, a seat rail portion 37 provided at the rear portion, and the like.

  FIG. 4 is a plan view of the vehicle body frame 1. The side beam 31, the oblique beams 32 and 33, and the reinforcing members 34 and 35 (FIG. 3) are provided as a pair on the left and right sides, and the left and right are connected by the first to fourth cross members 41 to 44. The left and right seat rails 37 are also connected by front and rear cross pipes 45a and 45b. A center beam 46 is provided between the lower portion of the front bumper portion 36 and the second cross member 42.

  The third cross member 43 and the fourth cross member 44 are connected by a pair of left and right pipe members 47, 47, and are substantially rectangular surrounded by the third cross member 43, the fourth cross member 44, and the left and right pipe members 47, 47. The fuel tank 13 is accommodated and supported therein, and the fuel pump 14 is disposed on the fuel tank 13. A battery 49 which is an electrical component is accommodated in front of the fuel tank 13 in the space 48 and supported by the center portion of the third cross member 43. The electric wire connected to the battery 49 forms the wire harness 12, and this wire harness 12 passes the rear side of the lower mudguard 51 of the vehicle body along the pipe member 47 to the right side of the fuel tank 13, and part of the vehicle body from the rear part of the fuel tank 13. The rear part is directed to the right side beam 31, and the rear part of the front wheel mudguard 25 is disposed along the side beam 31 in the front-rear direction. The wire harness 12 constitutes an electrical component together with electrical components such as the battery 49.

  Hereinafter, the installation of the mudguard will be described. In FIG. 4, a front wheel mudguard 25 is suspended from the rear end portion of the front fender 17 that is behind the left and right front wheels 2. The front wheel mud guard 25 overlaps the side beam 31 on the inner side, and the outer side of the front wheel mud guard 25 is disposed obliquely with an outward opening toward the front, and the left and right front wheel mud guards 25 have a substantially C shape toward the rear. Further, a lower vehicle body mudguard 51 is attached to the left and right side beams 31 from the center beam 46 along the second cross member 42. The left and right vehicle body lower mud guards 51 are inclined so that the outer end portions are rearward, and are arranged in a front conical shape toward the front, and have a substantially C shape.

  The outer end 51a, which is the outermost vehicle body in the vehicle width direction end of the underbody mudguard 51, extends below the side beam 31 to the position of the outer side surface, and passes under the side beam 31 in the front wheel mudguard 25. It is located in front of the inner end 25a entering the body. The inner end portion 25a is a portion that is the innermost side of the vehicle body among the end portions in the vehicle width direction.

  FIG. 5 is a view showing the front fender 17 on the left side of the vehicle body obliquely from above and from the rear. The right front fender is omitted. The front wheel mudguard 25 is detachably attached to the rear ends of the left and right front fenders 17 by bolts 50. The front wheel mudguard 25 is located outside the side beam 31. In the vicinity of the front wheel mud guard 25, the outer end portion of the second cross member 42 is positioned, and the upper end portion of the lower mud guard 51 of the vehicle body is located on the rear surface of the second cross member 42 at a predetermined interval with bolts 51c (only a part of the symbols). Is detachably attached). The upper side of the inner end portion 51 b of the underbody mudguard 51 is in contact with the side surface of the center beam 46.

  FIG. 6 is a side view of the front fender 17, and the front wheel mudguard 25 has a front edge 52 continuous with the front edge 17b of the rear wall 17a of the front fender 17, and an upper end portion of the front edge 52 forms a convex portion 53. 17 overlaps the leading edge 17b. The upper part of the front wheel mud guard 25 overlaps the lower side surface of the rear wall 17a of the front fender 17, and the upper edge 54 extends in the front-rear direction in a substantially straight line shape. The rear end portion of the upper edge 54 forms a step portion 55, the lower portion of the step portion 55 overlaps with the lower end of the side beam 31 protruding downward from the lower end portion 17 c of the rear wall 17 a, and the edge 56 below the step portion 55 is It extends downward from the side beam 31 and hangs down.

  FIG. 7 is a view showing the front wheel mudguard 25 and the underbody mudguard 51 from the front. Also in this figure, the right front fender is omitted. The front wheel mud guard 25 covers the rear side of the front wheel 2 so as to substantially overlap in the width direction, and the inner end portion 25a extends below the side beam 31 toward the inside of the vehicle body and is positioned in the vicinity of the inner side surface of the side beam 31. On the other hand, the underbody mudguard 51 has a substantially rectangular plate shape, the inner end 51 b is located at the same position as the side surface of the center beam 46, and the outer end 51 a substantially coincides with the outer surface of the side beam 31.

  As a result, the outer end 51 a protrudes outward from the inner end 25 a and extends to a position below the side beam 31. For this reason, an overlap portion 57 is formed in front of the front wheel mudguard 25 where the vicinity of the outer end portion 51a of the underbody mudguard 51 overlaps. A portion in the vicinity of the inner end portion 25 a of the front wheel mud guard 25 also forms an overlap portion 58 (FIG. 8) that overlaps behind the overlap portion 57. Each lower end of the underbody mudguard 51 has substantially the same height.

FIG. 8 is an enlarged view of the front wheel mudguard 25 and the lower body mudguard 51 on the left side of the vehicle body in FIG. The outer end portion 51a of the lower vehicle body mudguard 51 and the inner end portion 25a of the front wheel mudguard 25 are located in the vicinity and apart from the front, and between the overlap portions 57 and 58 of the lower vehicle body mudguard 51 and the front wheel mudguard 25, A gap 59 is formed, which communicates the front space of the front wheel mudguard 25 and the rear space of the underbody mudguard 51 and the inside and outside of the vehicle body. The gap 59 is opened obliquely in the front-rear direction and is not visible from the front of the vehicle body.
The rear space of the underbody mudguard 51 also communicates with a space 48 (see FIG. 4) in which electrical components such as a battery are disposed.

FIG. 9 is a view showing the front wheel mud guard 25 obliquely from the rear, and FIG. 10 is a top view of the front wheel mud guard 25. As shown in these drawings, the inner end portion 25a projects from the step portion 55 to the inside of the vehicle body, and mounting portions 53a and 54a by bolts 50 (FIGS. 5 and 6) are provided on the protrusion 53 and the upper edge portion 54. . As is clear from FIG. 10, the lowered portion of the stepped portion 55 forms a mounting seat 55 a that is bent substantially horizontally, and is bolted to the lower surface of the side member 31.
The shape of the front wheel mud guard 25 as viewed from above is the same as the shape shown in FIG. 8, and is elongated and projects outwardly in an inward and outward direction.

FIG. 11 is an enlarged side view of the main parts of the change pedal 26 and the change cable 27. The change pedal 26 is rotatable by a shaft 60 supported on the center beam 46. A lever 61 projects integrally with the change pedal 26, and the front end of the change cable 27 is connected to the tip. A boot 62 is provided at the front end of the change cable 27 to absorb the vertical movement of the change cable 27 as the lever 61 rotates. The boot 62 is supported on the center beam 46 side.
The change pedal 26 includes bifurcated arms 63 and 64, and pedals 65 and 66 are provided at the ends of the respective arm portions. The front pedal 65 is for shifting up, and when the front pedal 65 is depressed, the change cable 27 is pulled forward. The rear pedal 66 is used for downshifting, and when the rear pedal 66 is depressed, the change cable 27 is pushed backward.

As shown in FIG. 4, the change cable 27 extends rearwardly on the vehicle body frame 1 substantially along the center of the vehicle body, bypasses the periphery of the fuel tank 13, and connects to the boot 67 behind the fuel tank 13.
In FIG. 11 again, the boot 67 is attached to the lower side surface of the reinforcing member 35. A control rod 68 projects rearward from the boot 67, and a rear end portion thereof is connected to one end of the spindle arm 71 via an overload mechanism 70. The other end of the spindle arm 71 is connected to the spindle shaft 72. The spindle shaft 72 is connected to a gear mission shifter provided in the power unit 11, and when the change pedal 26 is stepped on, the spindle shaft 72 is rotated to change.

  FIG. 12 is a diagram showing the entire change cable 27. The overload mechanism 70 includes a first collar 73 and a second collar 74 through which the control rod 68 passes, and an adjustment spring 75 disposed between the collars. Each collar is fastened and positioned to a threaded portion on the control rod 68 with nuts 76 and 77 so as to be movable in the approaching direction. The second collar 74 is provided with a pin 78 projecting sideways, and this pin 78 is fitted into the hole of the spindle arm 71 (see FIG. 11).

  When the downshift pedal 66 (FIG. 11) is stepped on, the change cable 27 is pushed backward, and the boot 67 pushes the control rod 68 in the direction indicated by the arrow E. While the force applied to the control rod 68 is smaller than the set load of the adjustment spring 75, the overload mechanism 70 moves rearward (E direction) together with the control rod 68, and the spindle arm 71 via the integral pin 78. Rotate to shift.

  When an excessive pedaling force is applied to the downshift pedal 66, the second collar 74 is supported on the spindle arm 71 via the pin 78, so the first collar 73 compresses the adjustment spring 75, and the second collar 74 is supported. As it is, only the control rod 68 protrudes backward. For this reason, even if the stroke amount of the control rod 68 increases due to excessive force, the excessive stroke can be released so that excessive rotational force is not exerted on the spindle arm 41.

  Since the control rod 68 swings around the end portion on the boot side as the spindle arm 71 rotates, a seal cap 80 is provided at the rear end portion of the boot 67. The boot 67 is filled with grease for lubricating the control rod 68. The seal cap 80 seals a portion extending from the boot 67 of the swinging control rod 68.

  FIG. 13 is an enlarged cross-sectional view of a seal cap 80 provided at the end of the boot 67. The seal cap 80 is made of an elastic material made of an appropriate material such as rubber, and includes a large-diameter portion 81 fitted to the outer periphery of the end portion of the main body portion of the boot 67 and a small-diameter portion 83 provided continuously and integrally via the thin-wall portion 82. The small diameter portion 83 is provided with a through hole 84 through which the control rod 68 passes, and the thin diameter portion 83 also swings integrally while deforming the thin portion 82 as the control rod 68 swings.

Three seal lips 85 to 87 are integrally formed on the inner peripheral surface of the through hole 84 in the axial direction of the through hole 84, and project in the axial direction. Of these, the central seal lip 86 projects higher than the others. ing. The other seal lips 85 and 87 have substantially the same height, and the protruding amount of the center seal lip 86 relative to the other seal lips is h. This protrusion amount h can be set arbitrarily.
The center seal lip 86 is positioned on a straight line L1 that passes through the connecting portion 82a of the thin portion 82 with respect to the narrow diameter portion 83 and is orthogonal to the control rod 68 when not swinging. The end seal lips 85 and 87 are positioned away from the connecting portion 82 a in the axial direction of the control rod 68, so that the seal lip is more rigid than the center seal lip 86. 87 is lower.
The cross section of each seal lip has a trapezoidal cross section, and the tip side which is a sliding contact portion with respect to the control rod 68 is narrow. A grease groove 88 is provided between adjacent seal lips, and is filled with sealing grease.

As described above, when only the central seal lip 86 is raised, the central seal lip 86 comes into contact with the control rod 68 more strongly than the seal lips 85 and 87 on both sides.
FIG. 14 is a diagram schematically showing a state in which the control rod 68 is swung. Since the seal lips 85 and 87 at the ends are lower in rigidity than the center seal lip 86 and are easily deformed, the control rod 68 is swung. In response to the movement, the deformation is relatively large, and the degree of contact with the control rod 68 changes. On the other hand, the seal lip 86 at the center is in a state in which the outer peripheral side is supported by the annular wall by the connecting portion 82a and has high rigidity and is not easily deformed. Therefore, the contact state with the control rod 68 can be maintained with a substantially constant force. . For this reason, the control rod 68 swings around P, which is the intersection of the straight line L1 and the axis L2 of the control rod 68, with the seal lips 84 and 87 at the left and right ends. It is possible to contact evenly with respect to the swinging of the lip, and it is possible to prevent the end portions of the seal lips 85 and 87 from coming into contact. For this reason, the wear of the seal lips 85 and 87 is reduced, and the wear of each of the seal lips 85 to 87 is made uniform so that the sealing performance can be maintained well.

  Next, the operation of this embodiment will be described. In FIG. 8, a flying stone made of pebbles or the like that jumps up from the front wheel travels backward as indicated by an arrow A or B, and collides with the front surfaces of the front wheel mudguard 25 and the underbody mudguard 51. Further, a part of the vehicle body that has collided with the front surface of the lower mudguard 51 is guided by a slope inclined rearward, moves outward as indicated by the arrow C, and moves to the front wheel mudguard 25, where more falls.

  Most of the vehicles that have collided with the front wheel mudguard 25 from the direction indicated by the arrow A or C fall here, but some of them fall backward along the slope inclined backward as indicated by the arrow D while reducing the speed. To the inside of the body frame 1 which is the space behind the underbody mudguard 51. However, since the speed is sufficiently reduced to reach the gap 59, most of it falls when it passes through the gap 59 and does not reach the space 48.

  Moreover, as seen from the front, the underbody mudguard 51 and the front wheel mudguard 25 overlap with the overlap portions 57 and 58, so that pebbles and the like heading backward are stopped by the overlap portions 57 and 58, and the underbody mudguard 51 and the front wheels Since the mud guard 25 can prevent entry into the rear vehicle interior space, stepping stones can be prevented in a wide range in the vehicle width direction.

Further, the stepping stones can be dropped from the gap before being accumulated by the gap 59. In addition, by appropriately setting the size of the gap 59, it becomes easy to adjust so as not to accumulate while preventing stepping stones as much as possible.
Further, since the gap 59 is opened obliquely in the front-rear direction, it is possible to prevent a stepping stone heading from the front to the rear from directly entering the gap 59 without contacting the mudguard.

Furthermore, even if electrical components such as the battery 49, the fuel tank 13, and the wire harness 12 are provided in the space 48 in the lower part of the vehicle body behind the front wheel mudguard 25 and the lower vehicle body mudguard 51, stepping stones for these can be provided as much as possible. This can be prevented, and the arrangement of these parts at the lower part of the vehicle body is facilitated.

Side view of a motorcycle according to an embodiment Top view showing the interior of the vehicle Side view of body frame Plan view Perspective view showing the mud guard attached from the rear of the vehicle body Front fender side view Figure showing the mudguard from the front Diagram showing the planar arrangement of the mudguard Figure showing the front wheel mudguard from diagonally behind Top view of front wheel mudguard Side view of change pedal and change cable Diagram showing the entire change cable Enlarged sectional view of the seal cap The figure which shows the seal state to the control rod typically

Explanation of symbols

2: front wheel, 17: front fender, 25: front wheel mudguard, 26: change pedal, 27: change cable, 51: underbody mudguard, 57: overlap part, 58: overlap part, 59: gap, 80: seal cap

Claims (5)

A front wheel mudguard provided with wheels on the front, rear, left and right of the body frame and hung behind the pair of left and right front wheels, and hung below the body frame at a position inside the car body between the left and right front wheel mudguards. In a mudguard device for a four-wheel vehicle equipped with a mudguard under the vehicle body,
When viewed from the front of the vehicle body, the outer end of the lower mudguard in the vehicle width direction that is the outermost side of the vehicle body and the inner end of the front wheel mudguard in the widthwise direction of the vehicle that are located at the innermost side of the vehicle body While overlapping at intervals in the front-rear direction,
A four-wheeled vehicle characterized in that a gap for communicating the inside and outside of the vehicle body is provided between an inner end portion of the front wheel mud guard located on the front side and an outer end portion of the lower vehicle body mud guard located on the rear side. Mudguard device. The mudguard device for a four-wheel vehicle according to claim 1, wherein the gap is opened obliquely in the front-rear direction and cannot be seen from the front of the vehicle body. In plan view, the front wheel mudguard is inclined to the front so as to open outwardly, and the underbody mudguard is inclined to the front concavity,
The mudguard device for a four-wheel vehicle according to claim 1, wherein an inner end portion of the front wheel mudguard is disposed rearward of an outer end portion of the vehicle body lower mudguard. 4. The mudguard device for a four-wheel vehicle according to claim 3, wherein a fuel tank is disposed behind the underbody mudguard and a harness is disposed behind the front wheel mudguard. The mudguard device for a four-wheel vehicle according to claim 1, wherein an electrical component is disposed behind the front wheel mudguard and the underbody mudguard.

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