JP2018047818A - Ventilation structure of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress an influence to the rigidity of a cab, and to effectively reduce noise.SOLUTION: A rear pillar part 11 has a pillar internal space 15 therein. Internal openings 16 are formed at lower ends of internal plate parts 8b of rear pillars 8, and external openings 17 are formed at upper ends of outer ends 5a of a back panel 5. A back panel trim 24 is arranged in a position separated to a front part from a back panel part 12, and defines a cab rear space 19 between the back panel part 12 and itself. A back panel trim 24 has a plurality of slits 25 at a lower end of a center part in a vehicle width direction. An indoor space 26 communicates with a vehicle outside space 18 via the slits 25 of the back panel trim 24, the cab rear space 19, the internal openings 16 of the internal plate parts 8b of the left and right rear pillars 8, the pillar internal space 15, and the external openings 17 of the left and right outer ends 5a of the back panel 5.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a ventilation structure for a vehicle.

  Patent Document 1 describes a ventilation structure for a truck-type automobile. A cabin back panel is disposed on the entire rear surface of the driver's seat of the automobile, and a cabin back window member having a substantially U-shaped cross section is attached to the cabin back panel in the vehicle width direction. The cabin back window member and the cabin back panel form a first closed cross section. A plurality of first air inflow holes communicating with the first closed cross section are provided in the lower portion of the cabin back window member. A cabin back panel, a rear pillar inner panel, and a cab side outer panel form a cylindrical rear pillar closed space in the vertical direction at the vehicle side end, and the first closed cross section is formed at the side end. It communicates with the closed space in the rear pillar. A rear pillar lower rocker is disposed at the lower portion of the rear pillar inner panel. A cabin back lower panel is fixed to the rear pillar lower rocker and the cabin back panel on the indoor side of the rear pillar lower locker. Is formed. The second closed cross section communicates with a second air inflow hole formed by the cabin back lower panel and an air discharge hole opened on a side surface of the rear pillar lower rocker. An air discharge port is provided below the air discharge hole of the rear pillar lower rocker, and the second closed cross section communicates with the outside by the air discharge hole and the air discharge port. The flow of air entering from the first air inflow hole provided in the lower part of the cabin back window member passes through the inside of the first closed cross section, enters the inside of the closed space, flows downward, and the rear pillar lower locker. The air is exhausted from the air outlet provided in the room. In addition, the air that has entered from the second air inflow hole provided in the cabin back lower panel passes through the inside of the second closed cross section, flows into the closed space from the air exhaust hole provided in the rear pillar lower rocker, and moves downward. After flowing, it is discharged outside from the air outlet.

JP 11-99822 A

  In the ventilation structure of an automobile described in Patent Document 1, a plurality of air inflow holes are provided in a cabin back window member that is a strength member and a cabin back lower panel that forms a floor of a cabin (cab). Since it affects the strength of the cabin, it may be difficult to ensure the cabin strength.

  Further, the arrangement position of the air inflow hole is limited to a position where the cabin back window member is provided and a position where the cabin back lower member is provided. Thus, since the arrangement position of the air inflow hole is restricted and the degree of freedom is low, there is a possibility that the air inflow hole cannot be arranged at a position where noise from the outside can be effectively reduced.

  Accordingly, an object of the present invention is to provide a vehicle ventilation structure that can suppress the influence on the strength of the cab and can effectively reduce noise.

  In order to solve the above problems, a vehicle ventilation structure according to the present invention includes a rear pillar portion, a back panel portion, an interior trim, and a cab rear space. The rear pillar portion is divided into an external opening formed in the pillar outer surface portion exposed to the outside of the cab of the vehicle, an internal opening formed in the pillar inner surface portion not exposed to the outside of the cab, and a pillar outer surface portion and a pillar inner surface portion. And a pillar inner space extending between the outer opening and the inner opening, and stands at the rear end portion of the cab on the outer side in the vehicle width direction. The back panel portion stands up at the rear end portion of the cab so as to cross the front-rear direction, and the outer end portion in the vehicle width direction continues to the rear pillar portion. The interior trim has an interior opening that opens to the cabin of the cab, and stands up at the position spaced forward from the back panel portion in the front-rear direction, and defines the rear of the cabin. The cab rear space is defined between the back panel portion and the interior trim, communicates with the pillar interior space via the interior opening of the rear pillar portion, and communicates with the vehicle interior via the interior opening of the interior trim.

  In the above configuration, the pillar inner space of the rear pillar portion extends between the outer opening of the pillar outer surface portion and the inner opening of the pillar inner surface portion, and the cab rear space communicates with the pillar inner space via the inner opening of the rear pillar portion. Communicating with the passenger compartment through the interior trim interior opening. That is, air that has flowed into the cab rear space from the passenger compartment through the interior opening of the interior trim flows into the pillar inner space from the cab rear space through the inner opening of the rear pillar portion, and from the pillar inner space to the outer opening of the rear pillar portion. It is discharged to the outside of the vehicle through.

  A cab rear space serving as an air flow path between the passenger compartment and the pillar interior space is defined between the back panel portion and the interior trim. In this way, the cab rear space is formed by arranging the interior trim at a position spaced forward from the back panel portion, and the cab rear space is used as an air flow path between the vehicle interior and the pillar internal space. The air flow path between the passenger compartment and the pillar internal space can be secured without reducing the rigidity of the back panel, and the influence on the strength of the cab can be suppressed.

  Further, since the interior opening is provided in the interior trim, the degree of freedom of the arrangement position of the interior opening is high. For example, when a seat seat is disposed in front of the interior trim, a highly sound-absorbing portion such as the rear surface of the seat seat By arranging the indoor opening at a position facing the vehicle, it is possible to effectively reduce noise transmitted from the outside of the vehicle to the vehicle interior via the pillar internal space and the cab rear space.

  The vehicle ventilation structure may further include a soundproofing material that is disposed in the cab rear space and is fixed to at least one of the front surface of the back panel and the rear surface of the interior trim.

  In the above configuration, since the soundproofing material is disposed in the cab rear space, noise from the outside of the vehicle can be further reduced by the soundproofing material in the cab rear space.

  According to the present invention, the influence on the strength of the cab can be suppressed, and noise can be effectively reduced.

It is a side view of the vehicle provided with the ventilation structure which concerns on this invention. It is a schematic perspective view of the vehicle of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 2. It is an enlarged view of the ventilation opening of the vehicle of FIG. It is a schematic perspective view of a rear pillar and a back panel viewed from the passenger compartment side. It is a schematic perspective view of the back panel trim seen from the vehicle compartment side. It is a VII-VII arrow sectional view of Drawing 3.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In each figure, FR indicates the front of the vehicle, UP indicates the upper side, and IN indicates the inner side in the vehicle width direction. Moreover, in the following description, the left-right direction means the left-right direction with the vehicle facing forward. Moreover, the arrow in FIG. 3 shows the flow of the air discharged | emitted from a vehicle interior to the exterior of a vehicle.

  As shown in FIGS. 1 and 2, the ventilation structure according to the present embodiment is applied to a cab 2 of a vehicle 1 (for example, a vehicle 1 such as a pickup truck) in which a rear surface portion 3 of the cab 2 stands in a substantially vertical direction. The The cab 2 includes a floor panel 22 (see FIG. 7), a pair of left and right side panels 4 (only the left side panel 4 is shown in FIGS. 1 and 2), a back panel 5, It has a pair of rear pillars 8. The left and right side panels 4 stand along the both edges in the vehicle width direction of the floor panel 22, are exposed to the outside of the cab 2, and divide the left and right sides of the cab 2. The back panel 5 stands along the rear edge of the floor panel 22 and is exposed to the outside of the cab 2 to partition the rear of the cab 2. The rear end edges of the left and right side panels 4 of the cab 2 and the left and right end edges of the back panel 5 are joined to each other. The left and right rear pillars 8 are arranged on both sides in the vehicle width direction of the rear end portion of the cab 2 and stand up from the floor panel 22. In the cabin 6 of the cab 2, a seat seat 7 (see FIGS. 3 and 7) on which an occupant sits is installed above the floor panel 22.

  As shown in FIGS. 2 and 3, the left and right rear pillars 8 are substantially L-shaped plates, each having a front plate portion 8a and an inner plate portion 8b. And the back panel 5 are disposed on the inner side of the cab 2 at the corner 9 where they are joined, and extend in the vertical direction. The front plate portions 8 a of the left and right rear pillars 8 are arranged at positions spaced forward from the left and right outer end portions 5 a of the back panel 5, and the outer end edges of the front plate portion 8 a in the vehicle width direction are the left and right side panels 4. Joined to the rear end 4a. The inner plate portions 8b of the left and right rear pillars 8 are disposed at positions spaced inward in the vehicle width direction from the rear end portions 4a of the left and right side panels 4, and the rear end portions of the inner plate portions 8b are located on the left and right outer sides of the back panel 5. Joined to the end 5a. That is, the left and right rear pillars 8 are disposed inside corners 9 between the left and right side panels 4 and the back panel 5 and joined to the left and right side panels 4 and the back panel 5. Reinforce both sides of the direction. A pillar internal space 15 extending in the vertical direction is defined between the left and right side panels 4, the back panel 5, and the left and right rear pillars 8.

  The ventilation structure of the vehicle 1 includes a pair of left and right rear pillar portions 11, a back panel portion 12, a soundproof sheet (soundproof material) 13, and a rear trim 14.

  As shown in FIGS. 2 to 5, the left and right rear pillar portions 11 are columnar portions that stand up at the rear end portions on the outer sides of the cab 2 in the vehicle width direction, and are rear end portions (pillars) of the left and right side panels 4. An outer surface portion) 4a, left and right outer end portions (pillar outer surface portion) 5a of the back panel 5, and left and right rear pillars 8 (front plate portion (pillar inner surface portion) 8a and inner plate portion (pillar inner surface portion) 8b). It has a pillar internal space 15 inside. An inner opening 16 that penetrates the inner plate portion 8b in the vehicle width direction is formed at the lower end portion of the inner plate portion 8b of the left and right rear pillars 8. The internal opening 16 communicates a space 19 (cab rear space 19 described later) and the pillar internal space 15 on the inner side in the vehicle width direction of the inner plate portion 8 b of the left and right rear pillars 8. External openings 17 that penetrate the back panel 5 in the front-rear direction are formed at the upper ends of the left and right outer end portions 5 a of the back panel 5. The external opening 17 communicates the vehicle external space 18 behind the back panel 5 and the pillar internal space 15. That is, the pillar inner space 15 extends between the inner openings 16 of the inner plate portions 8 b of the left and right rear pillars 8 and the outer openings 17 of the left and right outer end portions 5 a of the back panel 5, and the inner plates of the left and right rear pillars 8. The space 19 inside the vehicle width direction of the portion 8b communicates with the vehicle exterior space 18. A valve 20 is provided in the external opening 17 of the left and right outer end portions 5 a of the back panel 5.

  As shown in FIGS. 2 and 4, the valve 20 of the external opening 17 at the left and right outer ends 5 a of the back panel 5 is formed by a plurality of horizontally-long rectangular plate members 21 that cross the external opening 17 in the vehicle width direction. Is done. The plurality of plate members 21 are arranged side by side in the vertical direction, and their upper end portions are rotatably supported by the left and right outer end portions 5a of the back panel 5 around a rotation axis extending in the vehicle width direction. The plurality of plate members 21 include a closed position (a position indicated by a solid line in FIG. 4) covering the external opening 17 from the rear, and an open position (2 in FIG. 4) where the lower end portion of the plate member 21 is tilted rearward and upward. It is possible to tilt between the position indicated by the dotted line. The plurality of plate members 21 in the closed position close the external opening 17 from the rear, and the plurality of plate members 21 in the open position open the external opening 17. The plurality of plate members 21 are arranged in a closed position when the pressure of air of a predetermined size or more (wind pressure from the inside) does not act on the plurality of plate members 21 from the pillar inner space 15, and the vehicle interior 6 When air in the passenger compartment 6 is discharged from the side and air pressure (wind pressure from the inside) above the predetermined size acts on the plurality of plate members 21 from the pillar internal space 15, this air pressure ( It can be opened to the open position side by wind pressure from the inside).

  As shown in FIGS. 2, 3, and 5, the back panel 12 is an intermediate region between the left and right outer ends 5 a of the back panel 5, and crosses the front and rear direction at the rear end of the cab 2. The right and left rear pillars 11 are connected to each other. In other words, the vehicle width direction outer end portion of the back panel portion 12 is continuous with the left and right outer end portions 5 a of the back panel 5 which is a part of the rear pillar portion 11.

  As shown in FIG. 5, the soundproof sheet 13 is a felt (nonwoven fabric) sheet, and is adhered to the front surface 12 a of the back panel portion 12 of the back panel 5 with an adhesive. The soundproofing material is not limited to a felt sheet, and may be, for example, a porous sound absorbing material such as glass wool or sponge.

  As shown in FIGS. 3, 6 and 7, the rear trim 14 is an interior panel that covers the back panel 5 and the left and right rear pillars 8 from the vehicle compartment 6 side, and includes a left and right pillar trim 23 and a back panel trim (interior panel trim). Trim) 24 integrally.

  The left and right pillar trims 23 are disposed in front of the inner plate portion 23a that is arranged and stands at a position spaced inward in the vehicle width direction from the inner plate portion 8b of the left and right rear pillars 8, and the front plate portion 8a of the left and right rear pillars 8. The front plate portion 23b extends from the front end edge of the inner plate portion 23a to the outside in the vehicle width direction and is continuous with the left and right side panels 4. The rear end edges of the inner plate portions 23 a of the left and right pillar trims 23 are arranged at positions spaced forward from the back panel 5.

  The back panel trim 24 is spaced forward from the back panel portion 12 and spaced rearward from the rear surface 7a of the seat 7 and is erected in the front-rear direction. It continues to the rear edge of the inner plate portion 23a of the left and right pillar trims 23. The back panel trim 24 defines the rear of the vehicle compartment 6. A cab rear space 19 is defined between the back panel trim 24 and the back panel portion 12. That is, the soundproof sheet 13 is disposed in the cab rear space 19. The back panel trim 24 has a plurality (four in the present embodiment) of slits (indoor openings) 25 at the lower end of the center in the vehicle width direction facing the rear surface 7a of the seat 7 from the rear. The slit 25 opens to the vehicle compartment 6 side, and communicates a space 26 behind the seat 7 in the vehicle compartment 6 (hereinafter referred to as an indoor space 26) and a cab rear space 19 behind the back panel trim 24. . Further, the cab rear space 19 communicates with the pillar inner space 15 through the inner openings 16 of the inner plate portions 8b of the left and right rear pillars 8. That is, the indoor space 26 includes the slit 25 of the back panel trim 24, the cab rear space 19, the inner opening 16 of the inner plate portion 8b of the left and right rear pillars 8, the pillar inner space 15, and the left and right outer end portions 5a of the back panel 5. Communicates with the vehicle exterior space 18 through the exterior opening 17. A soundproof sheet 13 is disposed at a position of the front surface 12a of the back panel portion 12 that faces the slit 25 from the rear. The pillar trim 23 and the back panel trim 24 may be separate.

  In the ventilation structure of the vehicle 1 configured as described above, the indoor space 26 includes the slit 25 of the back panel trim 24, the cab rear space 19, the inner opening 16 of the inner plate portion 8b of the left and right rear pillars 8, and the pillar inner space 15. And, it communicates with the vehicle exterior space 18 through the external openings 17 of the left and right outer end portions 5a of the back panel 5. For this reason, the air that has flowed from the indoor space 26 into the cab rear space 19 through the slit 25 of the back panel trim 24 passes through the inner opening 16 of the inner plate portion 8b of the left and right rear pillars 8 from the cab rear space 19. The air flows into the space 15 and is discharged from the pillar internal space 15 to the vehicle external space 18 through the external openings 17 of the left and right outer ends 5a of the back panel 5.

  A cab rear space 19 serving as an air flow path between the indoor space 26 and the pillar internal space 15 is defined between the back panel portion 12 and the back panel trim 24. Thus, the cab rear space 19 is formed by arranging the back panel trim 24 at a position spaced forward from the back panel portion 12, and the cab rear space 19 is defined as air between the indoor space 26 and the pillar internal space 15. Therefore, the air flow path between the indoor space 26 and the pillar internal space 15 can be secured without reducing the rigidity of the back panel portion 12, and the influence on the strength of the cab 2 can be suppressed. be able to.

  Further, since the soundproof sheet 13 is disposed in the cab rear space 19, noise transmitted from the external opening 17 of the back panel 5 to the indoor space 26 through the pillar inner space 15 and the cab rear space 19 is caused by the soundproof sheet 13. The noise can be absorbed, and the noise transmitted from the vehicle outer space 18 to the indoor space 26 via the pillar inner space 15 and the cab rear space 19 can be effectively reduced. For example, when the vehicle 1 is traveling at high speed, the traveling wind on the side of the cab 2 is caught on the back panel 5 side, and the noise of the traveling wind in the vehicle external space 18 behind the external opening 17 of the back panel 5 increases. However, since the noise can be absorbed by the soundproof sheet 13 in the cab rear space 19, the noise transmitted to the indoor space 26 can be effectively reduced.

  Further, the slit 25 of the back panel trim 24 faces the rear surface 7a of the seat 7 from the rear. For this reason, the rear surface 7a of the seat 7 is made of a flexible member having a high sound absorption property, so that the interior of the vehicle can be passed from the vehicle outer space 18 through the pillar inner space 15, the cab rear space 19, and the slit 25 of the back panel trim 24. Noise transmitted to the space 26 can be absorbed by the rear surface 7a of the seat 7 and effectively reduced.

  Further, a valve 20 is provided in the external opening 17 of the left and right outer end portions 5 a of the back panel 5. The plurality of plate members 21 of the valve 20 are arranged in a closed position when air pressure (wind pressure from the inside) equal to or greater than the predetermined size does not act on the plurality of plate members 21 from the pillar inner space 15. Therefore, noise transmitted from the vehicle outer space 18 to the indoor space 26 via the pillar inner space 15 and the cab rear space 19 can be effectively reduced.

  Therefore, according to this embodiment, the influence with respect to the intensity | strength of the cab 2 can be suppressed, and a noise can be reduced effectively.

  In the present embodiment, the external opening 17 is provided in the left and right outer end portions 5a of the back panel 5, but is not limited thereto. For example, the external opening 17 is provided in the rear end portion 4a of the left and right side panels 4. May be.

  In the present embodiment, the left and right rear pillar portions 11 are divided into the rear end portions 4 a of the left and right side panels 4, the left and right outer end portions 5 a of the back panel 5, the front plate portions 8 a and the inner plates of the left and right rear pillars 8. However, the present invention is not limited to this, and any rear pillar may be used as long as it rises at the rear end of the cab 2 on both sides in the vehicle width direction.

  In the present embodiment, the left and right rear pillar portions 11 have the same configuration as each other. However, the present invention is not limited to this, and the positions and shapes of the openings 16 and 17 may be different from each other. An air flow path may be provided only in one of the rear pillar portions 11.

  In this embodiment, the soundproof sheet 13 is fixed to the front surface 12 a of the back panel unit 12. However, the present invention is not limited to this. For example, the soundproof sheet 13 may be fixed to the rear surface of the back panel trim 24. Or you may fix to both the front surface 12a of the back panel part 12, and the rear surface 24a of the back panel trim 24. FIG.

  As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to the content of the said embodiment, Of course, it can change suitably in the range which does not deviate from this invention. That is, it is needless to say 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.

  For example, the vehicle to which the ventilation structure according to the present invention is applied is not limited to a pickup truck, and may be any vehicle 1 in which the rear surface portion 3 of the cab 2 stands in a substantially vertical direction, and may be a cab-over type truck or the like. Good.

1: Vehicle 2: Cab 4: Left and right side panels 4a: Rear ends of left and right side panels (pillar outer surface)
5: Back panel 5a: Left and right outer edges of the back panel (pillar outer surface)
8: Left and right rear pillars 8a: Front plate portions of the left and right rear pillars (pillar inner surface portions)
8b: Inner plate portions of the left and right rear pillars (pillar inner surfaces)
11: Rear pillar 12: Back panel 12a: Front surface of back panel 13: Soundproof sheet (soundproof material)
15: Pillar internal space 16: Internal opening 17: External opening 19: Cab rear space 24: Back panel trim (interior trim)
24a: Rear surface of back panel trim (rear surface of interior trim)
25: Multiple slits (indoor openings)

Claims (2)

An external opening formed in the pillar outer surface exposed to the outside of the cab of the vehicle, an internal opening formed in the pillar inner surface not exposed to the outside of the cab, the pillar outer surface, and the pillar inner surface. A pillar inner space extending between the outer opening and the inner opening, and a rear pillar portion standing at a rear end portion on the outer side in the vehicle width direction of the cab,
A back panel portion that stands up crossing the front-rear direction at the rear end portion of the cab, and whose outer end portion in the vehicle width direction continues to the rear pillar portion;
An interior trim that has an interior opening that opens to the cabin of the cab, stands up in the front-rear direction at a position spaced forward from the back panel portion, and divides the rear of the cabin;
A cab that is defined between the back panel portion and the interior trim, communicates with the pillar internal space via the internal opening of the rear pillar portion, and communicates with the vehicle compartment via the indoor opening of the interior trim. A vehicle ventilation structure comprising a rear space. The vehicle ventilation structure according to claim 1,
A vehicle ventilation structure comprising: a soundproof material disposed in the cab rear space and fixed to at least one of the front surface of the back panel portion and the rear surface of the interior trim.

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