JP2012144155A - Rear structure of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively prevent noise outside of a vehicle from intruding into a cabin from a ventilation opening arranged in a rear part of a vehicle body.SOLUTION: This rear structure of a vehicle is constituted so that air ventilation is performed via a space part along a wheel arch by first and second openings 17 and 24 formed in a fender panel 13 arranged along a side part of a luggage compartment arranged in the rear of a vehicle and a luggage compartment inside trim member 16. An opening part of becoming an air flow passage is formed in a panel member or the like positioned inside the fender panel 13, a first partition member 25 is arranged in the panel member for vertically partitioning the space part arranged between the fender panel and the panel member in the outside part of the panel member, and a second partition member 26 abutting on the first partition member 25 is arranged on the back face side of the trim member 16, and the air ventilation is performed via a lower space part 28 partitioned by the first and second partition members 25 and 26.

Description

  The present invention relates to a rear structure of a vehicle including a fender panel installed along a side portion of a cargo compartment provided at the rear of the vehicle and a trim member on the cargo compartment side.

  Conventionally, as shown in Patent Document 1 below, a quarter outer panel member disposed on both sides in the vehicle width direction of the rear portion of the vehicle, a quarter inner panel member disposed on the inner side in the vehicle width direction of the quarter outer panel member, and a quarter inner panel member The floor panel member joined between the quarter outer panel members at the rear and forming a continuous floor surface from one panel member to the other panel member, and joined to the rear end of the floor panel member and the rear end of the quarter outer panel member A rear end panel member joined to the rear end panel member from the rear end of the quarter inner panel member to form a cargo compartment section defined by the quarter outer panel member, and a cargo compartment section. It is arranged along the joint between the quarter outer panel member and the floor panel member, and the front end is A structure having a joining plate member joined to a water inner panel member, a rear end portion joined to a rear end member, and an intermediate portion joined to a floor panel member and a quarter outer panel member by three-point spot welding. Accordingly, a joint plate between the quarter inner panel member and the rear end panel portion is provided by utilizing the existing joint structure between the floor panel member and the quarter outer panel member, and the rigidity strength of the rear portion of the vehicle body is increased.

JP 2008-155714 A

  In the vehicle body structure disclosed in Patent Document 1, in order to reduce the weight of the vehicle, only the front side from the vicinity of the rear wheel arch portion of the inner surface of the quarter outer panel portion that forms the rear portion of the vehicle body among the side door panels. Further, in a sedan type vehicle provided with a quarter inner panel member, in order to provide the joining plate member for joining the quarter outer panel member and the floor panel member and the rear end member along the quarter outer panel member and the floor panel member, With a simple configuration, it is possible to effectively suppress a decrease in vehicle body rigidity accompanying a decrease in the floor height of the cargo compartment.

  However, noise outside the vehicle that has entered the rear vehicle body from the ventilation opening provided in the quarter outer panel member that defines the cargo compartment at the rear of the vehicle body is disposed on the inner side of the quarter outer panel. There is a problem that the noise is easily transmitted to a large space formed along the wheel arch between the trim member and the vehicle from the space to the vehicle interior. In particular, in a hatchback type vehicle in which the rear luggage compartment and the interior of the vehicle interior are not completely separated, noise from outside the vehicle cannot be effectively prevented from entering the interior of the vehicle. It was necessary to take measures such as installing sound-absorbing material over a wide area on the back of the machine.

  The present invention has been made in view of the above-described problems, and can effectively prevent noise outside the vehicle from entering the vehicle interior from a ventilation opening provided at the rear portion of the vehicle body. The object is to provide a rear structure of a vehicle.

  According to a first aspect of the present invention, a wheel arch is formed by a fender panel installed along a side portion of a cargo compartment provided at the rear of a vehicle and first and second openings formed in a trim member on the cargo compartment side. A rear structure of a vehicle configured to perform air ventilation via a space along the side wall, the panel member positioned inside the fender panel, or the panel member and the vehicle body rear wall An opening serving as an air flow passage is formed therebetween, and the panel member includes a first partition member that vertically divides a space provided between the panel member and the fender panel on an outer side thereof. And a second partition member that contacts the first partition member is provided on the back side of the trim member, and air ventilation is performed through a lower space defined by the first and second partition members. line Those that are configured to be.

  The invention according to claim 2 is the rear structure of the vehicle according to claim 1, wherein the first partition member is a holding member provided on the panel member, and a thermally foamable resin material attached to the holding member. The sheet member is configured to be in close contact with the fender panel and the panel member when the sheet member is heated and foamed in the paint drying process of the vehicle body.

  According to a third aspect of the present invention, in the rear structure of the vehicle according to the first or second aspect, the second partition member is attached to the back surface side of the trim member and is in a belt-like shape that is in close contact with the inner side surface of the holding member. An elastic body is provided.

  According to a fourth aspect of the present invention, in the rear structure of the vehicle according to any one of the first to third aspects of the present invention, the belt-like elastic body has a horizontally long portion that is in close contact with the inner surface of the holding member, and one end thereof. And a vertically long portion that is in close contact with the panel member.

  According to a fifth aspect of the present invention, in the rear structure of the vehicle according to any one of the first to third aspects, a rear opening portion in which a back door can be opened and closed at the rear portion of the vehicle body, and a peripheral portion thereof. And a rear end portion of the wheel house outer panel as the panel member is disposed on the front side of the side portion of the vehicle body rear wall portion at a predetermined distance. As a result, an opening serving as an air flow path is formed between the rear end portion of the wheel house outer panel and the side portion of the vehicle body rear wall portion, and the rear end portion of the wheel house outer panel and the vehicle body rear wall portion. The said 1st partition member is installed between these side parts.

  In the invention according to claim 1, since the large volume space formed in the side wall portion of the vehicle body is vertically divided via the first partition member and the second partition member, the air ventilation is performed. For example, when the side door is closed, the air flowing into the space from the second opening of the trim member can be discharged outside the vehicle through the opening for air circulation and the first opening formed in the fender panel. In addition, there is an advantage that it is possible to effectively prevent a passenger from feeling uncomfortable due to an increase in pressure in the passenger compartment when the side door is closed. Further, the first partition member and the second partition member effectively transmit noise outside the vehicle that has entered the vehicle body side wall from the first opening of the fender panel to the space above the wheel arch. Therefore, it is possible to effectively prevent noise outside the vehicle from entering the vehicle interior without taking measures such as installing a sound absorbing material over a wide range of the back surface of the trim member. Can do.

  In the invention which concerns on Claim 2, the said 1st partition member is comprised by the holding member provided in the panel member which consists of a wheel house outer panel etc., and the sheet | seat member which consists of a thermally foamable resin material attached to this holding member. Since the sheet member is heated and foamed in the paint drying process of the vehicle body to be in close contact with the fender panel and the panel member, the paint drying is performed even when the fender panel and the panel member have a complicated shape. The sheet member can be securely adhered to the panel member or the like using the heat of the process, and the large-capacity space formed on the vehicle body side wall using the first partition member having the sheet member There is an advantage that it can be properly partitioned.

  In the invention according to claim 3, since the second partition member is constituted by the belt-like elastic body attached to the back surface side of the trim member, the belt-like elastic body is integrally attached to the vehicle body in a state where the belt-like elastic body is attached to the trim member. Can be assembled. In addition, even when the shape accuracy of the trim member and the first and second partition members and the mounting positions thereof vary, the belt-like elastic body and the holding member constituting the first partition member are in close contact with each other. Therefore, there is also an advantage that the space can be effectively partitioned by the first and second partition members.

  In the invention which concerns on Claim 4, the strip-shaped elastic body of the said 2nd partition member is the elongate part closely_contact | adhered to the panel member which consists of a horizontally long part closely_contact | adhered to the inner surface of a holding member, and its one end side, etc. Therefore, the vertically long portion can adequately seal the space between the trim member and the panel member to sufficiently satisfy the partition function of the first and second partition members.

  In the invention according to claim 5, in the rear structure of the vehicle having a rear opening portion in which a back door is installed at the rear portion of the vehicle body so as to be openable and closable, and a vehicle body rear wall portion installed along the periphery thereof, the wheel By disposing the rear end portion of the house outer panel at a predetermined distance from the side portion of the vehicle body rear wall portion, the rear end portion of the wheel house outer panel and the side portion of the vehicle body rear wall portion are arranged. The first partition member is installed between the rear end of the wheel house outer panel and the side of the rear wall of the vehicle body, so that the weight of the vehicle body is effective. The air ventilation function can be sufficiently ensured through the opening while reducing the noise, and noise outside the vehicle that has entered the vehicle body side wall from the first opening formed in the fender panel is along the wheel arch. In There is an advantage that the propagation over the serial space can be effectively prevented.

1 is a perspective view showing an embodiment of a rear structure of a vehicle according to the present invention. FIG. 2 is a plan sectional view showing a specific configuration of the rear structure of the vehicle. It is the III-III sectional view taken on the line of FIG. It is the IV-IV sectional view taken on the line of FIG. FIG. 2 is a view corresponding to FIG. 1 showing a state where a trim member is removed. It is a perspective view which shows the specific structure of a 1st partition member. It is a perspective view which shows the state which attached the 2nd partition member to the trim member.

  1 to 5 show an embodiment of a rear structure of a vehicle according to the present invention. The vehicle includes a floor panel 1 constituting a bottom portion of the vehicle body, a luggage compartment 2 provided at the rear portion of the vehicle body, a vehicle body side wall portion 3 installed along a side portion thereof, and a rear end portion of the vehicle body. The vehicle body rear wall portion 4 is provided. The vehicle body rear wall portion 4 is provided with a rear pillar 6 extending in the vertical direction along a side portion of a rear opening 5 in which a back door (not shown) is installed so as to be opened and closed. The floor panel 1 includes a vehicle interior floor portion 7 on which an occupant seat (not shown) is installed, and a rear floor portion 8 provided behind the vehicle interior floor portion 7, and the cargo compartment 2 above the rear floor portion 8. Is formed.

  Rear side frames 10 are installed on the left and right side portions of the rear floor portion 8 so as to extend in the front-rear direction of the vehicle. As shown in FIG. 3, the rear side frame 10 includes an upper member 11 that forms a stepped portion that bulges upward from the floor panel 1, and a lower side that has a U-shaped section that is recessed below the floor panel 1. Each of the upper member 11 and the lower member 12 forms a closed cross section that extends in the front-rear direction of the vehicle.

  As shown in FIGS. 3 and 4, the vehicle body side wall portion 3 includes a fender panel 13 constituting an outer wall of the vehicle body, a wheel house outer panel 14 and a wheel house inner panel disposed on the inner side in the vehicle width direction. 15, and a trim member 16 is disposed at a predetermined distance on the inner side of the wheel house inner panel 15. Below the rear part of the fender panel 13, a first opening 17 for air ventilation is formed at a position covered by a side end part of a rear bumper (not shown).

  The wheel house outer panel 14 has a first bulging portion 18 serving as a rear wheel housing portion protruding toward the vehicle exterior side. The rear end portion of the wheel house outer panel 14 is disposed on the front side of the rear pillar 6 of the vehicle body rear wall portion 4 at a predetermined distance, whereby the rear end portion of the wheel house outer panel 14 and the vehicle body are arranged. An opening 19 serving as an air flow path is formed between the rear wall 4 and the rear pillar 6 (see FIG. 5).

  The wheel house inner panel 15 is provided with a second bulging portion 20 serving as a rear wheel housing portion protruding toward the vehicle interior side. Further, like the wheel house outer panel 14, the rear end portion of the wheel house inner panel 15 is disposed on the front side of the rear pillar 6 of the vehicle body rear wall portion 4 at a predetermined distance.

  The trim member 16 is formed with a bulging portion 21 that protrudes inward of the vehicle so as to cover the inner side surface portion of the wheel house inner panel 15 at a predetermined distance from the second bulging portion 20. Further, as shown in FIGS. 1 to 3, the trim member 16 has an opening 19 for air circulation formed between the rear end portion of the wheel house outer panel 14 and the rear wall portion 4 of the vehicle body. A recessed portion 22 is provided along the outside of the vehicle.

  The recessed portion 22 is provided with a sound absorbing material 23 at a position facing the first opening 17 of the fender panel 13 through the opening 19 formed between the wheel house outer panel 14 and the vehicle body rear wall portion 4. In addition, a second opening 24 for air ventilation is formed above (see FIG. 3). As a result, air ventilation is performed through a space portion along the wheel arch composed of the first bulging portion 18 of the wheel house outer panel 14 and the second bulging portion 20 of the wheel house inner panel 15. ing.

  The wheel house outer panel 14 is provided with a first partition member 25 that vertically divides a space provided between the wheel house outer panel 14 and the fender panel 13 on the outer side. A second partition member 26 that contacts the first partition member 25 is provided on the back side of the trim member 16. The first and second partition members 25 and 26 divide the fender panel 13 and the trim member 16 into upper and lower space portions 27 and 28, and air ventilation is performed via the lower space portion 28. Configured to be done.

  The first partition member 25 includes a holding member 29 made of a synthetic resin bracket attached to the wheel house outer panel 14, and a sheet member 30 made of a thermally foamable resin material attached to the holding member 29. Yes. As shown in FIGS. 6 and 7, the holding member 29 of the first partition member 25 includes a fixing portion 31 provided at the front end portion, and a vertical wall portion having a predetermined width extending from the fixing portion 31 to the rear side of the vehicle body. 32 and a locking portion 33 having a U-shaped cross section provided at the rear end of the vertical wall portion 32.

  Further, a reinforcing rib 34 and a mounting plate 35 of the seat member 30 are provided on the vertical wall portion 32 of the holding member 29 so as to protrude toward the vehicle exterior side, and the seat member 30 is provided on the upper surface of the mounting plate 35. It is fixed by bonding. The fixing portion 31 of the holding member 29 is bolted to the rear side portion of the wheel house outer panel 14, and the locking portion 33 is fitted on the flange portion provided on the rear pillar 6 of the vehicle body rear wall portion 4. Thus, the holding member 29 is configured to be attached to the vehicle body side wall 3 (see FIGS. 3 and 5).

  When the holding member 29 is attached to the vehicle body side wall 3 and is carried into the paint drying section of the vehicle body, and the sheet member 30 fixed to the attachment plate 35 is heated to a predetermined temperature and foamed, FIG. As shown by the solid line from the state shown by the broken line, the sheet member 30 is configured to expand. As a result, the seat member 30 comes into close contact with the vehicle interior side surface of the fender panel 13, and the panel member formed of the wheel house outer panel 14, specifically, the first bulging portion 18 serving as a housing portion for the rear wheel, and The rear pillar 6 is in close contact with the outer surface.

  The second partition member 26 includes a mounting plate 40 projecting from the back surface of the trim member 16 toward the vehicle exterior side, and a synthetic rubber belt-like elastic body 36 attached to the front end surface of the mounting plate 40. The belt-like elastic body 36 has a horizontally elongated portion 37 whose tip end is in close contact with the inner side surface of the holding member 29 and a rear end side continuously extending downward, and its tip portion is It is comprised by the panel member which consists of the wheel house outer panel 14, specifically, the vertically long part 38 which will be in the state which press-contacted and contact | adhered to the 2nd bulging part 20 used as the accommodating part of the said rear wheel. As shown in FIG. 7, an opening 39 for performing maintenance of a rear combination lamp (not shown) is formed on the upper surface of the recessed portion 22 provided at the rear portion of the trim member 16, and the opening A cover member (not shown) is detachably locked to the portion 39.

  As described above, the first and second openings 17 and 24 formed in the fender panel 13 installed along the side portion of the cargo compartment 2 provided at the rear of the vehicle and the trim member 16 on the cargo compartment side, A rear structure of the vehicle configured to perform air ventilation via a space along the wheel arch, and a panel member formed of the wheel house outer panel 14 or the like positioned inside the fender panel 13; or An opening 19 serving as an air flow passage is formed between the panel member and the vehicle body rear wall 4, and the panel member is provided between the fender panel 13 on the outer side thereof. A first partition member 25 that divides the space portion up and down is provided, and a second partition member 26 that contacts the first partition member 25 is provided on the back side of the trim member 16. Since air ventilation is performed via the lower space 28 defined by the first and second partition members 25 and 26, noise outside the vehicle is generated from the ventilation opening provided at the rear of the vehicle body. There is an advantage that it is possible to effectively prevent entry into the passenger compartment with a simple configuration.

  That is, in the above-described embodiment, a so-called rear opening 5 in which a back door can be opened and closed at the rear part of the vehicle body, and a rear pillar 6 that constitutes the vehicle body side wall part 3 installed along the periphery thereof is provided. In the hatchback type vehicle, the rear end portion of the wheel house outer panel 14 is disposed on the side portion of the vehicle body rear wall portion 4, that is, the front side of the rear pillar 6, and the rear end portion of the wheel house outer panel 14 and the rear pillar are arranged. 6, an opening 19 serving as an air flow path is formed between the front end of the first partition member 25 and the rear end of the wheel house outer panel 14, and the rear end of the first partition member 25. By supporting the portion on the front surface of the rear pillar 6, the first partition member 25 and the second partition member 26 provided on the back side of the trim member 16 are used to Since the large volume space formed in the vehicle body side wall 3 is vertically divided (see FIG. 2) and air ventilation is performed via the lower space 28, for example, when the side door is closed, Air that has flowed into the space 28 from the second opening 24 formed in the trim member 16 is brought out of the vehicle through the opening 19 for air circulation and the first opening 17 formed in the fender panel 13. It can be discharged. Accordingly, there is an advantage that it is possible to effectively prevent the occupant from feeling uncomfortable due to an increase in the pressure in the passenger compartment when the side door is closed.

  Then, noise outside the vehicle that has entered the vehicle body side wall portion 3 from the first opening 17 of the fender panel 13 is generated from the first bulging portion 18 of the wheel house outer panel 14 and the second bulging portion 20 of the wheel house inner panel 15. The first partition member 25 and the second partition member 26 can effectively prevent transmission along the wheel arch to the upper space 27. Therefore, for example, the sound absorbing material 23 is provided in a limited position such as a portion facing the first opening 17 of the fender panel 13 without taking a means such as installing a sound absorbing material over a wide range of the back surface of the trim member 16. With this simple configuration, noise outside the vehicle enters the vehicle interior from the upper space portion 27 formed along the wheel arch between the fender panel 13 and the trim member 16 disposed on the inner side thereof. It is possible to effectively prevent entry.

  Moreover, in the said embodiment, it is 1st by the holding member 29 attached to the panel member which consists of the wheel house outer panel 14, and the sheet | seat member 30 which consists of a thermally foamable resin material fixed to the attachment plate 35 of this holding member 29. Since the partition member 25 is configured and the sheet member 30 is heated and foamed in the painting drying process of the vehicle body to be in close contact with the fender panel 13 and the wheel house outer panel 14, the fender panel 13 and the wheel house outer panel 14 and the like. Even when the panel member made of has a complicated shape, the sheet member 30 can be securely adhered to the panel member by utilizing the heat of the paint drying process.

  Therefore, complicated work such as forming the sheet member 30 in a complicated shape corresponding to the panel member formed of the wheel house outer panel 14 or the like, or attaching the sheet member 30 in close contact with the panel member. There is an advantage that a large-capacity space portion formed in the vehicle body side wall portion 3 can be appropriately partitioned using the first partition member 25 having the sheet member 30.

  Further, as shown in the above embodiment, when the belt-like elastic body 36 of the second partition member 26 attached to the back surface side of the trim member 16 is configured to be in close contact with the inner surface of the holding member 29, In a state where the belt-like elastic body 36 is attached to the trim member 16, these can be integrally assembled to the vehicle body. And even if the shape accuracy of the trim member 16 and the first and second partition members 25 and 26 and the mounting positions thereof vary, the belt-like elastic body 36 of the second partition member 26 and the first partition member 25. Therefore, there is an advantage that the space part can be effectively partitioned by the first and second partition members 25 and 26.

  Further, the belt-like elastic body 36 of the second partition member 26 is vertically long and is in close contact with a horizontally long portion 37 that is in close contact with the inner side surface of the holding member 29 and a panel member that is formed on the wheel house outer panel 14 continuously from one end thereof. In the case of being configured by the portion 38, the vertically long portion 38 properly seals the space between the trim member 16 and the wheel house outer panel 14 so that the partition function by the first and second partition members 25 and 26 is sufficiently achieved. It can be satisfactory.

  Moreover, in the said embodiment, while having the rear opening part 5 in which the back door was installed in the rear part of the vehicle body so that opening and closing is possible, and the vehicle body rear wall part 4 installed along the periphery, the said wheel house outer panel 14 is provided. The rear end of the wheel house outer panel 14 and the rear wall portion of the vehicle body are arranged at a front side of the rear side portion of the rear wall portion 4 of the vehicle body at a predetermined distance from the side portion. Since the large opening 19 serving as an air flow passage is formed between the rear pillar 6 and the rear pillar 6, the weight of the vehicle body can be effectively reduced and the air ventilation function can be sufficiently secured through the opening 19. There is.

  And the said 1st partition member 25 is installed between the rear-end part of the said wheel house outer panel 14, and the rear pillar 6 of the vehicle body rear wall part 5, The space located between the wheel house outer panel 14 and the fender panel 13 Since the section is divided into upper and lower parts, it is effective that noise outside the vehicle that has entered the vehicle body side wall part 3 through the first opening 17 formed in the fender panel 13 propagates above the space part along the wheel arch. Can be prevented.

  Note that the rear portion of the wheel house outer panel 14 is replaced by the rear portion of the wheel house outer panel 14 and the rear pillar 6 of the rear wall portion 5 of the vehicle body. It is also possible to have a structure in which an opening serving as an air flow path is formed by cutting out the.

DESCRIPTION OF SYMBOLS 2 Cargo compartment 4 Car body rear wall part 13 Fender panel 14 Wheel house outer panel 15 Wheel house inner panel 16 Trim member 17 1st opening 19 Opening part used as air flow path 24 2nd opening 25 1st partition member 26 2nd partition member 27 Lower space 29 Holding member 30 Sheet member 37 Horizontal portion 38 Vertical portion

Claims (5)

  A fender panel installed along the side of the cargo compartment provided at the rear of the vehicle and the first and second openings formed in the trim member on the cargo compartment via the space along the wheel arch A rear structure of a vehicle configured to perform air ventilation, which is a panel member positioned on the inner side of the fender panel, or an air flow path between the panel member and the rear wall portion of the vehicle body An opening is formed, and the panel member is provided with a first partition member that vertically divides a space provided between the panel member and the fender panel on the outer side thereof, and the trim member A second partition member that comes into contact with the first partition member is provided on the back side, and air ventilation is performed through a lower space defined by the first and second partition members. Rear structure of a vehicle, characterized and.   The first partition member has a holding member provided on the panel member and a sheet member made of a thermally foamable resin material attached to the holding member, and the sheet member is heated in a paint drying process of the vehicle body. The rear structure of a vehicle according to claim 1, wherein the rear structure of the vehicle is configured to be in close contact with the fender panel and the panel member by foaming.   3. The rear structure of the vehicle according to claim 1, wherein the second partition member includes a belt-like elastic body that is attached to the back surface side of the trim member and is in close contact with the inner surface of the holding member.   The band-shaped elastic body includes a horizontally long portion that is in close contact with the inner surface of the holding member, and a vertically long portion that is continuously in contact with the panel member at one end thereof. The rear structure of the vehicle according to claim 1.   A rear opening portion in which a back door is installed at the rear portion of the vehicle body so that it can be opened and closed, and a vehicle body rear wall portion installed along the periphery thereof, and a rear end portion of the wheel house outer panel as the panel member is An air flow path between the rear end portion of the wheel house outer panel and the side portion of the vehicle body rear wall by being disposed on the front side with a predetermined distance from the side portion of the vehicle body rear wall. The first partition member is disposed between a rear end portion of the wheel house outer panel and a side portion of the rear wall portion of the vehicle body. The rear structure of the vehicle according to any one of the preceding claims.

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