JP5193824B2 - Vehicle rear drainage structure - Google Patents

Description

  The present invention relates to a vehicle rear drainage structure.

Conventionally, a drainage channel is provided along the front edge and side edge of the trunk opening formed at the rear part of the vehicle body, and water is allowed to flow along the drainage channel, thereby preventing water from entering the trunk room. Such a structure is known (for example, Patent Document 1).
JP 2003-118504 A

  However, in the conventional structure, when a large amount of water exceeding the allowable range flows into the drainage channel, there is a possibility that water easily leaks into the trunk room.

  Then, an object of this invention is to obtain the vehicle rear part drainage structure which can suppress further the water leak from a drainage channel in a trunk room.

  In the present invention, in the vehicle rear drainage structure in which the left and right drainage channels along the front edge of the trunk opening and the front and rear drainage channels along the side edge are formed, the left and right drainage channels are connected to the left and right drainage channels. The main feature is that a jump portion is provided to jump the water flowing along the front end portion of the front and rear drainage channels and direct it to the outside of the vehicle body.

  According to the present invention, since the water splashed at the jump portion can be discharged to the outside of the vehicle body across the front end portion of the front and rear drainage channels, the flow rate of water flowing into the front and rear drainage channels from the left and right drainage channels is reduced. Thus, water leakage from the front and rear drainage channels into the trunk can be further suppressed.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a perspective view showing a rear portion of a vehicle having a vehicle rear drain structure according to the present embodiment, FIG. 2 is a view showing a state where a trunk lid is removed from FIG. 1, and FIG. 3 is a front edge of a trunk opening portion. FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1, FIG. 5 is a sectional view taken along the line V-V in FIG. 1, and FIG. FIG. 7 is an enlarged view of the left end portion of the leading edge member, FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7, and FIG. 9 is a sectional view taken along line IX-IX in FIG. In each figure, UP indicates the upper side of the vehicle, FR indicates the front of the vehicle, and RH indicates the starboard side in the left-right direction.

  As shown in FIG. 2, a trunk room T opened upward is formed at the rear of the vehicle body of an automobile 1 as a vehicle. The trunk room T is disposed between the rear window panel 2 and the rear fender 3 and the rear end member 4 extending in the left-right direction at the rear end of the vehicle body. As shown in FIG. 1, the trunk opening 5 serving as the opening of the trunk room T is closed so as to be opened and closed by a trunk lid 7 rotatably attached to the vehicle body.

  In addition, in order to prevent water W from entering the trunk room T at the peripheral edge of the trunk opening 5, a drainage channel is formed as a concave groove. The drainage channel includes a left and right drainage channel 8 extending along the front edge 5 a of the trunk opening 5 and a front and rear drainage channel 9 extending along the side edge 5 b of the trunk opening 5. In FIG. 2, only the port side configuration is shown, and the starboard side configuration is omitted. Actually, a pair of front and rear drainage channels 9 and other structures are formed along a pair of left and right side edges 5 b of the trunk opening 5.

  The left and right drainage channels 8 have a relatively gentle downward slope from the left and right intermediate portions toward the left and right end portions 8a, and the front and rear drainage channels 9 are compared from the front end portion 9a toward the rear side. A moderately downward slope is set. The front end portion 9a of the front and rear drainage channels 9 is disposed slightly below the end portion 8a of the left and right drainage channels 8. Therefore, in this embodiment, as shown in FIG. 2, the water W that has entered the left and right drainage channels 8 flows toward the left and right end portions 8a, and the front end portions 9a of the front and rear drainage channels 9 from the left and right end portions 8a. In this case, the front and rear drainage channels 9 flow rearward and are discharged from the rear end of the front and rear drainage channels 9.

  As shown in FIG. 4, the front / rear drainage channel 9 is formed on a side edge member 13 that extends in the vehicle front / rear direction along the side edge 5 b of the trunk opening 5. In this embodiment, the upper surface of the side edge member 13 has a substantially U-shaped cross section, and a weather strip 11 as a seal member is attached so as to cover the side edge member 13 from above. The weather strip 11 is formed by an elastic member such as an elastomer, and the upper end of the side edge member 13 and the trunk room inner wall member 14 is covered from above with a recess 11d formed between the two base portions 11b and 11c. It is attached. The base portion 11c on the outer side in the vehicle width direction (left side in FIG. 4) has a substantially U-shaped cross section along the cross section of the side edge member 13, and in this embodiment, the front and rear drains are formed as concave grooves by the base portion 11c. A path 9 is formed.

  A seal portion 11a having a substantially C-shaped cross section is provided on the upper portions of the base portions 11b and 11c. The seal portion 11a may have a hollow shape having a substantially circular cross section or a straight lip shape. When the trunk lid 7 is closed, the seal portion 11a is pressed from above by the trunk lid 7 and is brought into close contact with the lower surface of the trunk lid 7 to ensure a seal.

  As shown in FIG. 5, the left and right drainage channels 8 are formed on a front edge member 15 that extends in the vehicle left-right direction along the front edge 5 a of the trunk opening 5. The front edge member 15 is constructed between the front end portions of the pair of left and right side edge members 13. The rear edge portion of the front edge member 15 is bent upward and has a substantially U-shaped cross section, and a weather strip 10 as a seal member is attached so as to cover the rear edge portion from above. . The weather strip 10 is formed of an elastic member such as an elastomer, and is attached so that the concave portion 10c formed in the base portion 10b covers the rear edge portion of the front edge member 15 from above. In the present embodiment, the left and right drainage channels 8 are formed by the rear edge portion of the front edge member 15 and the base portion 10 b of the weather strip 10.

  A seal portion 10a having a substantially O-shaped cross section is provided on the upper portion of the base portion 10b. When the trunk lid 7 is closed, the seal portion 10a is pressed from above by the trunk lid 7 and is brought into close contact with the lower surface of the trunk lid 7 to ensure a seal. The rear window panel 2 is placed on the front edge portion of the front edge member 15.

  With the above configuration, the flow of water W shown in FIG. 2 is formed. When a large amount of water W exceeding the allowable range flows into the drainage channels 8 and 9, the water pressure is high in the drainage channels 8 and 9. Therefore, the seal portions 10a and 11a of the weather strips 10 and 11 are pushed and deformed to the center side of the trunk opening 5, and there is a possibility that water leaks from the drainage channels 8 and 9 into the trunk room T. The inventors' research has revealed that the water pressure tends to be high, particularly in the region A of FIG.

  Therefore, in the present embodiment, as shown in FIGS. 6 to 9, the water W flowing along the left and right drainage channels 8 is fed to the left and right end portions 8 a which are downstream ends of the left and right drainage channels 8. A jump portion 12 that jumps up so as to straddle the front end portion 9a of 9 and faces the gap G (see FIGS. 1 and 9) between the trunk lid 7 and the vehicle body outer plate (the rear fender panel 6 in this embodiment). It is provided. That is, as shown in FIG. 9, the water W jumps up at the jump portion 12 using the momentum (dynamic pressure, kinetic energy) of the water W flowing through the left and right drainage channels 8, above the front end 9 a of the front and rear drainage channels 9. And the water W flows from the left and right drainage channels 8 to the front and rear drainage channels 9 through the gap G located on the opposite side of the end portion 8a of the left and right drainage channels 8 with respect to the front end portion 9a. It is intended to suppress.

  In the present embodiment, the jump portion 12 is provided as a part of the weather strip 10, and specifically protrudes forward from the left and right end portions 10d. And the upper surface 12a is made into the inclined surface for making the water W jump up. The inclination angle of the upper surface 12a with respect to the bottom surfaces of the left and right drainage channels 8 is set to an appropriate value according to the assumed flow rate and the relative positional relationship with the gap G.

  Further, at the left and right end portions 8a of the left and right drainage channels 8, a gap 16 is formed between the upper surface 15a of the rear edge portion of the front edge member 15 serving as the bottom surface of the concave groove and the lower surface 12b of the jump portion 12, Water W flows from the left and right drainage channels 8 to the front end portion 9 a of the front and rear drainage channels 9 through the gap 16. That is, in the present embodiment, the gap 16 corresponds to a bypass path. Therefore, when the flow rate is relatively small, the water W is introduced from the left and right drainage channels 8 through the gap 16 to the front end portion 9a of the front and rear drainage channels 9, and flows backward through the front and rear drainage channels 9 to be discharged.

  As described above, in the present embodiment, the water W flowing along the left and right drainage channels 8 is splashed on the left and right end portions 8a of the left and right drainage channels 8 so as to straddle the front end portions 9a of the front and rear drainage channels 9. Thus, a jump portion 12 is provided which is directed outward from the gap G between the trunk lid 7 and the rear fender panel 6 as the vehicle body outer plate. That is, the water W splashed up by the jump portion 12 can be discharged to the outside of the vehicle body from the gap G across the front end 9a of the front and rear drainage channel 9, so By reducing the flow rate of the flowing water W, water leakage from the front and rear drainage channels 9 into the trunk room T can be further suppressed. Such a configuration is particularly effective when a large amount of water flows into the left and right drainage channels 8 due to heavy rain, or when water flows into the left and right drainage channels 8 at the time of car washing or the like.

  In the present embodiment, the gap 16 is formed under the jump portion 12 as a bypass passage through which water W flows from the left and right drainage channels 8 to the front end portion 9a of the front and rear drainage channels 9. Therefore, even when the flow rate of the water W is relatively small and does not jump up at the jump portion 12, the water W that has flowed into the left and right drainage channels 8 is introduced into the front and rear drainage channels 9 via the gaps 16, and along the front and rear drainage channels 9. Can be discharged backwards.

  In the present embodiment, the jump portion 12 is provided on the weather strip 10 as a seal member attached to the front edge member 15. Therefore, by attaching the weather strip 10 to a predetermined position of the front edge member 15, the jump portion 12 can be arranged relatively easily at the predetermined position. In particular, when the bypass path is provided, the gap 16 can be secured and the bypass path can be obtained simply by providing the jump strip 12 at a position separated from the bottom surface of the left and right drainage paths 8 in the weather strip 10. That is, according to this configuration, the jump portion 12 and the gap 16 as the bypass path can be obtained relatively easily with a relatively simple configuration.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiments, and various modifications can be made. Although the case where the present invention is applied to an automobile having a fixed roof is illustrated in the above embodiment, the present invention can be similarly applied to a vehicle having a movable roof such as a convertible car. Moreover, specifications, such as a right-and-left drainage channel, a front-rear drainage channel, a front edge member, a side edge member, are not limited to the said embodiment, A various deformation | transformation is possible.

  Further, the shape of the jump portion and other specifications are not limited to the above embodiment. Further, the jump portion may be provided by projecting the front edge member, or a part other than the front edge member and the seal member may be attached to the front edge member or the seal member. Also, the bypass path can be variously modified, for example, formed by a hole provided in the jump portion. Moreover, you may comprise so that the water splashed up by the jump part may be discharged | emitted from vehicle body outside from the clearance gap G.

It is a perspective view which shows the rear part of a vehicle provided with the vehicle rear part drainage structure concerning embodiment of this invention. It is a figure which shows the state which removed the trunk lid from FIG. It is a perspective view which expands and shows the corner which a front edge and a left side edge of a trunk opening part of vehicles provided with a vehicle rear part drainage structure concerning an embodiment of the present invention connect. It is IV-IV sectional drawing of FIG. It is VV sectional drawing of FIG. It is the perspective view which looked at the vehicle provided with the vehicle rear part drainage structure concerning embodiment of this invention from the VI direction of FIG. It is an enlarged view of the part which provided the jump part in the vehicle rear part drainage structure concerning embodiment of this invention. It is VIII-VIII sectional drawing of FIG. It is IX-IX sectional drawing of FIG.

Explanation of symbols

T Trunk room W Water 1 Car (vehicle)
5 Trunk opening 5a Front edge 5b Side edge (left and right side edges)
6 Rear fender panel (vehicle skin)
7 Trunk lid 8 Left and right drainage channel 8a Left and right end 9 Front and rear drainage channel 9a Front end 10,11 Weather strip (seal member)
12 Jump part 12a Upper surface 13 Side edge member 15 Front edge member 15a Upper surface 16 Gap (bypass path)

Claims (3)

A pair of side edge members extending in the vehicle front-rear direction along the left and right side edges of the trunk opening formed at the rear of the vehicle body, and a front edge member connecting the pair of side edge members along the front edge of the trunk opening And a trunk lid that closes the trunk opening so as to be openable and closable, and a left and right drainage channel is formed on the front edge member as a concave groove extending along the extending direction, and on the side edge member Front and rear drainage channels are formed as concave grooves extending along the extending direction, and the water that has entered the left and right drainage channels flows toward the left and right ends, and is introduced from the left and right ends to the front end of the front and rear drainage channels. In the rear drainage structure of the vehicle configured to flow backward through the front and rear drainage channels,
A jump portion is provided at the left and right end portions of the left and right drainage channels to cause water flowing along the left and right drainage channels to jump over the front end portions of the front and rear drainage channels and to be directed outward of the vehicle body. Car rear drainage structure.   The vehicle rear drainage structure according to claim 1, wherein a bypass passage is formed under the jump portion to flow water from the left and right drainage channels to a front end portion of the front and rear drainage channels.   The vehicle rear drainage structure according to claim 1, wherein the jump portion is provided on a seal member attached to the front edge member.

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