WO2010113967A1

WO2010113967A1 - Wind noise prevention structure of vehicle

Info

Publication number: WO2010113967A1
Application number: PCT/JP2010/055742
Authority: WO
Inventors: 孝男飛澤; 恭一郎佐竹
Original assignee: いすゞ自動車株式会社
Priority date: 2009-03-30
Filing date: 2010-03-30
Publication date: 2010-10-07
Also published as: JP2010228709A

Abstract

An outlet valve (4) is provided on the back surface (15a) of a valve fixing plate (15) in the rear of a door opening (9) which opens the side of a cab (2), in order to permit outflow of air from the inside to the outside of a vehicle and to block inflow of air from the outside to the inside of a vehicle. A planar seal member (5) extends forward from the front surface (31a) of a seal fixing plate (31) of the carrier (3) on the outside of the outlet valve (4) in the vehicle width direction, and traveling wind which flows in between the back surface (8a) of a cab back panel (8) and the front surface (3a) of the carrier (3) from the side of the vehicle blows against the planar seal member (5).

Description

Vehicle wind noise prevention structure

The present invention relates to a wind noise prevention structure for a vehicle that includes an outlet valve that allows air to flow from the inside of the vehicle to the outside of the vehicle and prevents the inflow of air from the outside of the vehicle to the inside of the vehicle.

In Patent Document 1, a stack intake pipe that is vertically attached to the rear left corner of the cab and used for intake air of the engine, and is vertically attached to the front right corner of the cargo compartment, has a curved shape. The structure of the vehicle provided with the level | step difference protector which is the formed long plate body is described. The stack intake pipe has a flat left outer surface, and has an area that closes the gap between the rear left corner of the cab and the front left corner of the cargo compartment in a state almost close to closing.

Japanese Utility Model Publication No. 3-60427

The structure of a vehicle having an outlet valve on the rear surface of the cab that allows air to flow out of the vehicle when the vehicle door is closed is widely known. In the structure of a vehicle equipped with this outlet valve on the rear surface of the cab, wind noise generated by traveling wind flowing from the side of the vehicle between the cab and the cargo compartment during vehicle traveling is transmitted to the interior of the vehicle via the outlet valve. Is done. Therefore, when a large wind noise is generated in the vicinity of the outlet valve, there is a possibility that the quietness in the vehicle is lowered and the occupant feels uncomfortable.

Note that the structure of the vehicle described in Patent Document 1 does not completely prevent the traveling wind from flowing from the side of the vehicle into the space between the cab and the cargo compartment. In the case where wind noise is generated by the traveling wind that flows from the side of the vehicle, the above-described inconvenience may occur as well.

Therefore, the present invention reduces the wind noise level of wind noise transmitted to the interior of the vehicle via the outlet valve by a simple structure in which a plate-like member is provided on the outer side of the outlet valve in the vehicle width direction. An object of the present invention is to provide a wind noise prevention structure for a vehicle capable of improving the performance.

In order to achieve the above object, the vehicle wind noise prevention structure of the present invention includes a cab rear surface, an outlet valve, a cargo bed front surface, and a plate-like member.

The rear surface of the cab defines the rear end of the cab. The outlet valve is provided on the rear surface of the cab behind the door opening that opens the side of the cab, and allows the outflow of air from the inside of the vehicle to the outside of the vehicle and prevents the inflow of air from the outside of the vehicle to the inside of the vehicle. The front surface of the loading platform is disposed to face the rear surface of the cab and defines the front end of the loading platform. The plate-like member extends forward or rearward from the rear surface of the cab or the front surface of the loading platform on the outer side in the vehicle width direction of the outlet valve, and the traveling wind flowing from the side of the vehicle hits between the rear surface of the cab and the front surface of the loading platform.

In the above configuration, when the door opening is closed by the door, the outflow of air from the outlet valve suppresses a rapid increase in the atmospheric pressure in the vehicle, so that the door closing operation is performed smoothly.

Further, during traveling of the vehicle, the traveling wind that flows rearward along the side surface of the cab provided with the door opening and flows between the rear surface of the cab and the front surface of the loading platform hits the plate-shaped member before reaching the rear region of the outlet valve. . As a result, inflow of traveling wind to the rear region of the outlet valve is prevented, or turbulent flow is generated in the traveling wind flowing into the rear region of the outlet valve to reduce the flow velocity. The wind noise level of the sound is reduced and the generation of loud wind noise is suppressed.

Further, since the wind noise generated in the vehicle width direction outside region of the plate-like member is sound-insulated by the plate-like member, the wind noise transmitted from the plate-like member outside region in the vehicle width direction to the rear region of the outlet valve is transmitted. The wind level of the sound is reduced.

Therefore, a simple structure in which a plate-like member is provided on the outer side in the vehicle width direction of the outlet valve reduces the wind noise level of wind noise transmitted to the vehicle through the outlet valve, thereby improving the quietness in the vehicle. be able to.

The protruding amount of the plate-like member can be arbitrarily set within a range in which the effect of reducing the wind noise level is obtained, and includes a case where the plate-like member shields a region between the cab rear surface and the loading platform front surface. .

Further, the plate-like member has flexibility, and may extend from above the upper end of the outlet valve to below the lower end of the outlet valve.

In the above configuration, the traveling wind that flows between the rear surface of the cab and the front surface of the loading platform reliably hits the plate-like member before reaching the rear region of the outlet valve and hardly flows directly into the rear region of the outlet valve. Therefore, the flow velocity of the traveling wind flowing into the rear region of the outlet valve is reliably reduced, and the wind noise level of the wind noise transmitted to the vehicle through the outlet valve is reliably reduced.

In addition, since the plate-like member has flexibility, even when the cab and the loading platform move relative to each other and the plate-like member comes into contact with the rear surface of the cab or the front surface of the loading platform when the vehicle is running, Is hard to be damaged, and the plate member is also difficult to be damaged.

According to the present invention, the wind noise level of wind noise transmitted to the interior of the vehicle via the outlet valve is reduced by a simple structure in which a plate-like member is provided on the outer side of the outlet valve in the vehicle width direction. Can be improved.

It is the perspective view which looked at the loading platform which concerns on this embodiment from diagonally forward. It is a principal part expansion perspective view of FIG. It is a figure which shows the positional relationship of an outlet valve and a plate-shaped sealing member.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a cargo bed according to the present embodiment viewed obliquely from the front, FIG. 2 is an enlarged perspective view of a main part of FIG. 1, and FIG. 3 is a diagram showing a positional relationship between an outlet valve and a plate-like seal member. In the following description, the front-rear direction indicates the front-rear direction of the traveling direction of the vehicle, and the inner-outer direction indicates the inner-outer side in the vehicle width direction. Moreover, right and left means right and left in the state which faced the vehicle front. FIG. 3 shows the structure of the left rear end of the cab. 1 and 3, illustration of the right outlet valve and the right plate-shaped seal member is omitted.

As shown in FIGS. 1 to 3, the pickup truck 1 according to this embodiment includes a cab 2, a loading platform 3, a pair of left and right outlet valves 4, a pair of left and right plate-like seal members (plate-like members) 5, and the like. Yes.

The cab 2 has a pair of left and right cab side panels 6, a pair of left and right door panels 7, a cab back panel 8, and the like, and is disposed at the front portion of the pickup truck 1. Since the cab 2 has a substantially bilaterally symmetric structure, the shape of the left end portion of the left cab side panel 6, the left door panel 7 and the cab back panel 8 will be described, the right cab side panel 6, the right door panel 7 and The description of the shape of the right end portion of the cab back panel 8 is omitted.

The cab side panel 6 is a substantially plate-like member that extends rearward from the outer end in the vehicle width direction of a cab front panel (not shown) that defines the front end of the cab 2, and defines a substantially rectangular door opening 9. ing. The cab side panel 6 includes a cab side panel outer 10 that defines an outer end of the cab 2 in the vehicle width direction, a cab side panel inner 11 that is spaced apart from the cab side panel outer 10 in the vehicle width direction, and the like. is doing.

The front end of the door panel 7 is rotatably supported by the front end of the cab side panel 6 and covers the door opening 9 from the side of the vehicle.

The cab back panel 8 is erected along the vehicle width direction behind the cab side panel 6, and a rear surface (cab rear surface) 8 a defines the rear end of the cab 2. The cab back panel 8 is slightly inclined from the inner end in the vehicle width direction of the side panel connection portion 12 to the rear end of the left cab side panel 6 and from the inner end in the vehicle width direction to the rear in the vehicle width direction. From the inclined plate portion 13 that extends, the first bent plate portion 14 that is bent from the inner end in the vehicle width direction of the inclined plate portion 13 and extends inwardly in the vehicle width direction, and the inner end portion in the vehicle width direction of the first bent plate portion 14 The left end includes a valve mounting plate 15 extending inward in the vehicle width direction, a second bent plate portion 16 bent from the inner end in the vehicle width direction of the valve mounting plate 15 and extending inward in the vehicle width direction. is doing.

The valve mounting plate portion 15 has a substantially rectangular valve opening portion 17 that communicates the inside of the vehicle with the outside of the vehicle. Further, a rear end portion 11a of the cab side panel inner 11 is joined to the front side of the valve mounting plate portion 15 and inside the valve opening portion 17 in the vehicle width direction.

The outlet valve 4 is attached to the frame portion 19 attached to the valve opening portion 17 via a fixing member 18, a duct 20 extending forward from the frame portion 19, and the duct 20, and a plurality of openings are formed in the vertical direction. A baffle plate support frame (not shown), a plurality of baffle plates 22 that are supported from above by a mounting portion 21 provided at the upper edge of each opening and extend downward, and the like, and a valve mounting plate portion 15. On the rear surface 15a, the cab back panel 8 is disposed approximately at the center in the vertical direction.

The baffle plate 22 is a substantially plate-like member, and the lower end portion is in contact with the lower end edge of the opening. The baffle plate 22 tilts backward around the upper end when the air flows from the inside of the vehicle to the outside through the opening, and the baffle plate 22 baffles when the air flows from the outside to the inside of the vehicle. The lower end portion of the plate 22 and the lower end edge of the opening portion come into contact with each other to close the opening portion from the rear.

The outlet valve configured in this manner 4 allows the air inside the vehicle to flow out of the vehicle when the door panel 7 is closed, and prevents the air outside the vehicle from flowing into the vehicle.

The loading platform 3 includes a floor 23, a front wall 24 erected along the vehicle width direction at the front end of the floor 23, and disposed opposite to the rear of the cab back panel 8, and in the front-rear direction on both sides of the floor 23 in the vehicle width direction. A pair of left and right side walls 25 erected along the rear side, a tail gate 26 erected along the vehicle width direction at the rear end of the floor 23, and the like are disposed behind the cab 2. Since the loading platform 3 has a substantially bilaterally symmetric structure, the shape of the left end of the left side wall 25 and the front wall 24 will be described, and the description of the shape of the right end of the right side wall 25 and the front wall 24 will be omitted. .

The front wall 24 is disposed oppositely behind the valve mounting plate portion 15 and the second bent plate portion 16. The front wall 24 has an upper end located below the rear upper end portion of the cab 2 and above the upper end of the outlet valve 4, and a lower end located above the rear lower end portion of the cab 2 and the outlet valve 4. It is arrange | positioned below the lower end of.

The side wall 25 has a front panel 27, an outer panel 28, an inner panel 29, and the like. The front panel 27 includes a front wall joint plate portion 30, a seal mounting plate portion 31, a front panel bent plate portion 32, an outer panel joint plate portion 33, and the like. The front panel 27 has an upper end disposed substantially at the same height as the upper end of the front wall 24, and a lower end extending below the lower end of the front wall 24.

The front wall joining plate part 30 is joined in a state where the front surface 30a is in surface contact with the rear surface of the front end 24 of the front wall 24 in the vehicle width direction. The seal mounting plate portion 31 extends from the outer end in the vehicle width direction of the front wall joining plate portion 30 to the outer side in the vehicle width direction, and is disposed opposite the rear end of the valve mounting plate portion 15 in the vehicle width direction. The seal mounting plate portion 31 is provided with three through holes 34 at predetermined intervals in the vertical direction. The front panel bent plate portion 32 is bent from the outer end in the vehicle width direction of the seal mounting plate portion 31 and extends forward in the vehicle width direction, and is disposed opposite the first bent plate 14 portion. The outer panel joining plate portion 33 extends from the outer end in the vehicle width direction of the front panel bent plate portion 32 to the outer side in the vehicle width direction, and is disposed opposite to the rear of the inclined plate portion 13.

The outer panel 28 includes a front panel joining plate portion 35, an outer panel flat plate portion 36, and the like. The front panel joining plate portion 35 is disposed opposite to the rear of the inclined plate portion 13 and joined in a state in which the rear surface 35 a is in surface contact with the front surface 33 a of the outer panel joining plate portion 33. The outer panel flat plate portion 36 is bent from the outer end in the vehicle width direction of the front panel joint plate portion 35 and extends rearward.

The inner panel 29 has an inner panel front plate portion 37, an inner panel flat plate portion 38, and the like. The inner panel front plate portion 37 is disposed opposite to the rear end of the front wall joint plate portion 30 in the vehicle width direction, and is joined in a state where the front surface 37 a is in surface contact with the rear surface 30 b of the front wall joint plate portion 30. The inner panel flat plate portion 38 is bent from the outer end in the vehicle width direction of the inner panel front plate portion 37 and extends rearward.

In the loading platform 3 thus configured, the front surface 24a of the loading platform 3 is constituted by the front surface 24a of the front wall 24 and the front surface 27a of the front panel 27.

The plate-like seal member 5 is a rubber having a substantially L-shaped cross section having flexibility, and has a fixed plate portion 39 and a protruding plate portion 40. Since the left and right plate-like seal members 5 have a substantially symmetrical structure, the left-side plate-like seal member 5 will be described, and the description of the right-side plate-like seal member 5 will be omitted.

The fixed plate portion 39 has a substantially rectangular plate shape extending in the vertical direction, and three through holes 41 are formed at predetermined intervals in the vertical direction. The fixed plate portion 39 is in surface contact with the front surface 31 a of the seal mounting plate portion 31, and is in surface contact with the front surface 31 a of the seal mounting plate portion 31, and the three through holes 41 and the seal mounting plate of the fixed plate portion 39. The three through holes 34 of the portion 31 overlap each other in the front-rear direction. The fixing plate portion 39 is fixed to the seal attachment plate portion 31 by a clip 42 inserted from the front into the seal attachment plate portion 31 and the through

holes

34 and 41 of the fixation plate portion 39. In a state where the fixed plate portion 39 is fixed to the seal mounting plate portion 31, the inner end in the vehicle width direction of the fixed plate portion 39 is outside the outer end in the vehicle width direction of the front wall 24 and is an outlet valve. 4, the vehicle width direction outer end of the fixed plate portion 39 is the vehicle width direction outer end portion of the seal mounting plate portion 31, and is disposed behind the first bent portion 14. Has been.

The protruding plate portion 40 has a substantially rectangular plate shape extending in the vertical direction, and extends from the outer end portion in the vehicle width direction of the fixed plate portion 39 to the front outside in the vehicle width direction. With the fixed plate portion 39 fixed to the seal mounting plate portion 31, the front end portion 40 a of the protruding plate portion 40 is on the inner side in the vehicle width direction of the front panel bent plate portion 32 and behind the first bent plate portion 14. It is arranged at a position slightly separated from each other. The plate-like sealing member 5 configured in this manner extends from above the upper end of the outlet valve 4 to below the lower end of the outlet valve 4 while being fixed to the seal mounting plate portion 31.

The clip 42 has a head portion 43, a shaft portion 44, and a claw portion 45. The head 43 is a substantially disk-shaped member, and the outer diameter is set larger than the diameter of the through hole 41. The shaft portion 44 has a substantially cylindrical shape, and one end (the rear end in FIG. 3) is connected to the head portion 43. The claw portion 45 is a member that is connected to the other end of the shaft portion 44 and extends in a substantially C shape toward one end side of the shaft portion 44. One end of the claw portion 45 and the shaft portion 44 are slightly separated from each other. By pressing one end side of the claw portion 45, a gap between one end of the claw portion 45 and the shaft portion 44 is narrowed. Further, the one end of the claw portion 45 and the head portion 43 are slightly separated.

In the clip 42 configured in this way, by inserting the claw portion 45 into the through

holes

34 and 41, one end of the claw portion 45 and the shaft portion 44 are brought into contact with the outer peripheral edge of the claw portion 45 and the through

holes

34 and 41. The gap between is narrowed. When the head 43 is further pushed toward the through

holes

34 and 41 in a state where the gap between one end of the claw portion 45 and the shaft 44 is narrowed, the shaft 44 penetrates the through

holes

34 and 41. The head 43 is in surface contact with the front surface 39 a of the fixed plate portion 39. In such a state, the gap between one end of the claw portion 45 and the shaft portion 44 returns to its original size, and one end of the claw portion 45 abuts on the rear surface 31 b of the seal mounting plate portion 31.

According to the present embodiment, when the door opening 9 is closed by the door panel 7, the outflow of air from the outlet valve 4 suppresses a rapid increase in the atmospheric pressure in the vehicle, so that the door panel 7 is smoothly closed. .

Further, during traveling of the vehicle, the traveling wind that flows rearward along the cab side panel 6 provided with the door opening 9 and flows between the rear surface 8a of the cab back panel 8 and the front surface 3a of the cargo bed 3 is an outlet valve. 4 hits the plate-like seal member 5 before reaching the rear region 46. As a result, turbulent flow is generated in the traveling wind flowing into the rear region 46 of the outlet valve 4 to reduce the flow velocity, and the wind noise level of the wind noise is reduced in the vicinity of the outlet valve 4 to generate a large wind noise. Occurrence is suppressed.

Further, since the wind noise generated in the vehicle width direction outside region of the plate-like seal member 5 is blocked by the plate-like seal member 5, the region 47 of the plate-like seal member 5 in the vehicle width direction outside the outlet valve 4 The wind noise level of the wind noise transmitted to the rear region 46 is reduced.

Therefore, the wind noise level of the wind noise transmitted to the inside of the vehicle via the outlet valve 4 is reduced by a simple structure in which the plate-like seal member 5 is provided on the outer side of the outlet valve 4 in the vehicle width direction. Can be improved.

Further, since the plate-like seal member 5 extends from above the upper end of the outlet valve 4 to below the lower end of the outlet valve 4, it flows into between the rear surface 8 a of the cab back panel 8 and the front surface 3 a of the loading platform 3. The traveling wind thus surely hits the plate-like seal member 5 before reaching the rear region 46 of the outlet valve 4 and hardly flows directly into the rear region 46 of the outlet valve 4. Accordingly, the flow velocity of the traveling wind flowing into the rear region 46 of the outlet valve 4 is reliably reduced, and the wind noise level of the wind noise transmitted to the vehicle through the outlet valve 4 is reliably reduced.

Further, since the plate-like seal member 5 has flexibility, the cab 2 and the loading platform 3 relatively move when the vehicle travels, and the plate-like seal member 5 comes into contact with the rear surface 8a of the cab back panel 8. However, the rear surface 8a of the cab back panel 8 is hardly damaged, and the plate-like seal member 5 is also difficult to be damaged.

Further, the outlet valves 4 are provided on the rear surfaces 8a on both sides of the cab back panel 8 in the vehicle width direction, and the plate-like seal members 5 are disposed on the outer sides of the outlet valves 4 in the vehicle width direction. Even when the outlet valves 4 are respectively disposed on the rear surface 8a of the rear of the vehicle, the wind noise level of the wind noise transmitted to the vehicle through the left and right outlet valves 4 can be reliably reduced.

Further, since the plate-like seal member 5 has flexibility, it can be fixed by following the shape of the seal mounting plate portion 31. That is, even if the front surface 31a of the seal mounting plate portion 31 is planar or uneven, the plate-like seal member 5 can be fixed in accordance with the shape of the front surface 31a of the seal mounting plate portion 31. . Therefore, for example, since it is not necessary to manufacture the plate-shaped sealing member 5 having a different shape in accordance with the shape of the mounting surface, the manufacturing cost can be kept relatively low.

In addition, the protrusion amount of the plate-shaped seal member 5 can be arbitrarily set within a range where the effect of reducing the wind noise level is achieved. Therefore, in the present embodiment, the case where the front end portion 40a of the protruding plate portion 40 is disposed at a position slightly separated behind the first bent plate portion 14 has been described. However, the front end portion 40a is the first bent plate portion. 14 may be in contact with the rear surface. In such a case, the traveling wind that flows between the rear surface 8a of the cab back panel 8 and the front surface 3a of the loading platform 3 hits the plate-shaped seal member 5 before reaching the rear region 46 of the outlet valve 4, and the outlet valve 4 The inflow of traveling wind to the rear region 46 is blocked, and the wind noise level of the wind noise is reduced in the vicinity of the outlet valve, thereby suppressing the generation of a large wind noise. Further, by shielding the area between the rear surface 8a of the cab back panel 8 and the front surface 3a of the cargo bed 3 with the plate-like seal member 5, other components arranged between the cab back panel 8 and the cargo bed 3 are used. Can hardly be visually recognized from the outside, so that the appearance of the pickup truck 1 can be improved.

Further, when the plate-like seal member 5 extends from above the upper end of the outlet valve 4 to below the lower end of the outlet valve 4, that is, the upper end of the plate-like seal member 5 is higher than the upper end of the outlet valve 4. The lower end of the plate-shaped seal member 5 is disposed below the lower end of the outlet valve 4. However, the upper end of the plate-shaped seal member 5 is disposed below the upper end of the outlet valve 4. The lower end of the plate-like seal member 5 may be disposed above the lower end of the outlet valve 4.

Furthermore, although the case where the plate-shaped sealing member 5 was arrange | positioned on the rear surface 8a of the both sides in the vehicle width direction of the cab back panel 8 was demonstrated, respectively, May be arranged only.

Further, the plate-like seal members 5 may be arranged near both sides in the vehicle width direction of the left outlet valve 4 and may be arranged near both sides in the vehicle width direction of the right outlet valve 4. In such a case, the traveling wind that flows between the rear surface 8a of the cab back panel 8 and the front surface 3a of the loading platform 3 reliably hits the plate-like seal member 5 in the vicinity of both sides in the vehicle width direction of the left and right outlet valves 4. Therefore, turbulent flow is surely generated in the traveling wind flowing into the respective rear regions 46 of the left and right outlet valves 4 and the flow velocity is reduced. Therefore, the wind noise level of the wind noise transmitted to the vehicle through the left and right outlet valves 4 can be more reliably reduced.

Further, although the case where the plate-like sealing member is formed of rubber has been described, for example, it may be formed of a flexible elastomeric resin or may be formed of a plastic having no flexibility.

Furthermore, the present invention is not limited to the case where the plate-like seal member 5 is fixed to the seal mounting plate portion 31, and may be fixed to the front panel bent plate portion 32.

Furthermore, the plate-like seal member 5 may be fixed by rivets without using the clip 42.

As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the description and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

The present invention can be applied to a vehicle including an outlet valve that allows air to flow out from the inside of the vehicle and prevents air from flowing from the outside of the vehicle to the inside of the vehicle.

2 Cab 3 Loading platform 3a Front (front of loading platform)
4 Outlet valve 5 Plate-like seal member (plate-like member)
8a Rear (cab rear)
9 Door opening

Claims

The rear surface of the cab that defines the rear end of the cab,
An outlet valve that is provided on the rear surface of the cab behind a door opening that opens the side of the cab, and that allows outflow of air from the inside of the vehicle to the outside of the vehicle and prevents the inflow of air from the outside of the vehicle to the inside of the vehicle;
A front surface of the loading platform that is disposed opposite to the rear surface of the cab and defines a front end of the loading platform;
A plate-like member that extends forward or rearward from the rear surface of the cab or the front surface of the cargo bed on the outer side in the vehicle width direction of the outlet valve, and that receives traveling wind flowing from the side of the vehicle between the rear surface of the cab and the front surface of the cargo bed. A structure for preventing wind noise of a vehicle.
The wind noise prevention structure for a vehicle according to claim 1,
The plate-like member has flexibility, and extends from above the upper end of the outlet valve to below the lower end of the outlet valve.