JP2018083566A - Automobile vehicle body structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively block water or sound entering through a clearance formed between a vehicle body framework and a side outer panel.SOLUTION: A clearance between the periphery of a door opening 10a of a vehicle body framework 10 configured by fiber-reinforced resin in a bathtub shape and a side outer panel 27 arranged outside in the vehicle width direction is sealed by a seal member 31. The seal member 31 includes: a seal body part 31a that surrounds at least a part of the periphery of the door opening 10a of the vehicle body framework 10; and first seal branched portions 31b, 31c that are branched from the seal body part 31a. The first seal branched portions 31b, 31c are branched from the seal body part 31a to be located above on-vehicle components 24, 25 that protrude from the vehicle body framework 10 toward an outer surface of a vehicle body, and discharge passages 32, 33 are formed between the seal body part 31a and the first seal branched portions 31b, 31c in the lower parts of the on-vehicle component 24, 25.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle body structure for an automobile in which a seal member seals between a periphery of a door opening of a vehicle body skeleton formed in a bathtub shape with a fiber reinforced resin and a side outer panel disposed outside the vehicle width direction. .

  A side outer panel is attached to a door opening portion of a vehicle body skeleton formed by joining an upper skeleton to a lower skeleton formed in a bathtub shape with a CFRP (carbon fiber reinforced resin portion) via a seal member such as an ept sealer (trade name). The abutted one is known from Patent Document 1 below.

WO2016 / 051867

  By the way, like the thing described in the said patent document 1, when a side outer panel is made to contact | abut via the sealing member at the door opening part of a vehicle body frame | frame, a clearance gap generate | occur | produces between a vehicle body frame | frame and a side outer panel. Inevitable. In-vehicle parts such as door strikers and door checker brackets are provided around the door opening of the car body skeleton, and a mounting opening for projecting these in-vehicle parts to the outside of the car body is formed in the side outer panel. Therefore, for example, water or sound that has entered between the vehicle body skeleton and the side outer panel from the clearance of the seal lip of the door enters the vehicle interior through the mounting opening for the in-vehicle component, or the vehicle body skeleton and the side sill garnish. Or the like, it is difficult to solve this problem with a conventional simple-shaped sealing member.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to effectively block water and sound entering through a gap formed between a vehicle body skeleton and a side outer panel.

  In order to achieve the above object, according to the invention described in claim 1, the side of the door opening portion of the vehicle body skeleton formed in a bathtub shape with fiber reinforced resin, and the side disposed on the outer side in the vehicle width direction. An automobile body structure that seals between an outer panel and a seal member by a seal member, wherein the seal member includes at least a part of a periphery of the door opening of the vehicle body skeleton, and a seal body portion. A first seal branch part that branches off, and the first seal branch part branches from the seal main body part above the vehicle-mounted part protruding from the vehicle body skeleton to the vehicle body outer surface side, and below the vehicle-mounted part. A vehicle body structure is proposed in which a drainage passage is formed between the seal body and the seal body.

  According to the second aspect of the present invention, in addition to the structure of the first aspect, the vehicle body skeleton includes a bag structure portion into which water or sound enters from the outside, and the second seal branched from the seal body portion. A vehicle body structure for an automobile is proposed in which a branch portion branches from the seal main body portion above the entrance of the bag structure portion.

  According to the invention described in claim 3, in addition to the structure of claim 2, the seal main body seals a vertical wall standing in the vertical direction above the bag structure. A car body structure is proposed.

  According to the invention described in claim 4, in addition to the configuration of claim 3, the inclined wall continuing to the vertical wall is inclined obliquely upward from the upper end of the vertical wall inward in the vehicle width direction. A vehicle body structure characterized by this is proposed.

  According to the invention described in claim 5, in addition to the structure of any one of claims 1 to 4, the seal member branches downward from the first seal branch portion and the door. A vehicle body structure for an automobile is provided, which includes a seal re-branching portion extending in a direction away from the opening.

  In addition, the door striker 24 and the bracket 25 of embodiment correspond to the vehicle-mounted component of this invention.

  According to the configuration of the first aspect, the seal member that seals between the vehicle body skeleton formed in a bathtub shape with the fiber reinforced resin and the side outer panel is a seal that surrounds at least a part of the periphery of the door opening of the vehicle skeleton. A first seal branch portion that branches from the seal body portion; the first seal branch portion branches from the seal body portion above the vehicle-mounted component protruding from the vehicle body skeleton to the vehicle body outer surface side; Since the drainage passage is formed between the door and the side outer panel, the water that has entered the gap between the vehicle body skeleton and the side outer panel through the mounting opening of the vehicle-mounted part from the gap between the door and the side outer panel is formed. Not only can the sound be prevented from entering the vehicle interior by the seal body, but also the vehicle body skeleton and side outer from other routes such as the rear wheel house. Water or sound that has entered the gap between the panels can be blocked by the first seal branching portion and prevented from entering the vehicle interior, and water that has entered the gap between the seal main body portion and the first seal branching portion can be prevented. And sound can be discharged through the drainage passage.

  According to the configuration of claim 2, the vehicle body skeleton includes a bag structure portion into which water or sound enters from the outside, and the second seal branch portion branched from the seal body portion is located above the inlet of the bag structure portion. Therefore, the water that has entered the gap between the vehicle body skeleton and the side outer panel is blocked by the second seal branch portion, thereby preventing the water from flowing into the bag structure portion.

  Further, according to the configuration of the third aspect, the seal main body seals the vertical wall standing in the vertical direction above the bag structure, so that the water flowing into the bag structure through the vertical wall is effectively blocked. be able to.

  According to the fourth aspect of the present invention, since the inclined wall continuous to the vertical wall is inclined obliquely upward from the upper end of the vertical wall toward the inside in the vehicle width direction, the inclined wall is transmitted from the inclined wall to the bag structure portion. Inflowing water can be blocked more effectively.

  According to the fifth aspect of the present invention, the seal member includes the seal re-branching portion that branches downward from the first seal branch portion and extends in the direction away from the door opening portion. By blocking the sound by the seal re-branching portion, the effect of the first seal branch portion can be further enhanced.

The perspective view of the vehicle body side part of a motor vehicle. The figure which attached the side outer panel and the side sill garnish to FIG. FIG. 3 is a three-direction arrow view of FIG. 1. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a sectional view taken along line 5-5 of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the present specification, the front-rear direction, the left-right direction (vehicle width direction), and the up-down direction are defined with reference to an occupant seated in a driver seat.

  As shown in FIG. 1, a body frame 10 of a two-seat sports type vehicle is basically made of CFRP (carbon fiber reinforced resin), and a pair of left and right sides extending in the front-rear direction along the left and right sides of the floor panel 11. Side sills 12, 12, a pair of left and right front pillars 13, 13 rising from the front ends of the left and right side sills 12, 12, and a pair of left and right rear pillars 14, 14 rising from the rear ends of the left and right side sills 12, 12 are provided. . The side sill 12, the front pillar lower 13 and the rear pillar 14 are integrally closed hollow closed cross-section members, and a plurality of aluminum alloy bulkheads 15 (see FIG. 3) are arranged at predetermined intervals.

As shown in FIG. 4, the floor panel 11 includes an outer skin 16 on the outer side (lower side) of the vehicle body,
A corrugated core 18 is sandwiched between the inner skin 17 on the inner side (upper side) of the vehicle body, and a wave is generated inside the outer end in the vehicle width direction which is thickened by the outer skin 16 bulging downward. A plate-like impact absorbing member 19 is disposed.

  As shown in FIG. 1, a pair of left and right front pillars 20, 20 stands rearward and upward from the upper ends of the left and right front pillar lowers 13, 13, and a reverse U-shaped roll is formed between the upper ends of the left and right rear pillars 14, 14. The bars 21 are connected in the vehicle width direction. The vehicle of the present embodiment is a Targa top type, and the upper ends of the left and right front pillars 20 and 20 and the upper part of the roll bar 21 are connected by a detachable roof (not shown).

  As shown in FIG. 5, the horizontal cross section of the front portion of the rear pillar 14 has a first front wall 14a, a first side wall 14b, a second front wall 14c, and a second side wall 14d, and is formed in a step shape. The door inner panel 23 of the door 22 facing there is provided with a first side wall 23a, a rear wall 23b and a second side wall 23c facing the first side wall 14b, the second front wall 14c and the second side wall 14d of the rear pillar 14, respectively. . A door striker 24 that protrudes forward is fixed to the second front wall 14c of the rear pillar 14. As shown in FIG. 3, a bracket 25 is fixed to the rear surface of the front pillar lower 13, and a front end of a door checker (not shown) is fixed to the bracket 25.

  As shown in FIG. 2, the side outer panel 27 is fixed to the outer surface in the vehicle width direction of the vehicle body skeleton 10, the front pillar outer panel 28 is fixed to the outer surface in the vehicle width direction of the front pillar 20, and the outer surface in the vehicle width direction of the roll bar 21. The roll bar outer panel 29 is fixed to the upper surface. The side outer panel 27 is formed with a mounting opening 27a (see FIG. 5) from which the door striker 24 protrudes forward and a mounting opening (illustrated) from which the bracket 25 of the door checker protrudes rearward. A door seal 30 that contacts the outer peripheral portion of the door 22 is fixed along the door opening surrounded by the vehicle body skeleton 10, the front pillar outer panel 28, and the roll bar outer panel 29.

  As shown in FIGS. 1 and 3, a gap α (see FIGS. 4 and 5) is formed between the outer surface in the vehicle width direction of the vehicle body skeleton 10 and the side outer panel 27 fixed to the outer side in the vehicle width direction. The gap α is sealed by the seal member 31. The seal member 31 is made of a rubber-like string-like body containing bubbles, and is fixed to the vehicle body skeleton 10 with an adhesive. The seal function is exhibited when the inner side in the vehicle width direction of the side outer panel 27 comes into contact therewith.

  The seal member 31 includes a seal body 31a surrounding the door opening 10a, two first seal branches 31b and 31c branched from the seal body 31a, and two second seal branches 31g and 31h, 2 Three seal re-branching portions 31d, 31e, and 31f branched from the first seal branch portions 31b and 31c are integrally continuous. The seal body 31a passes through the inner side in the vehicle width direction than the door striker 24, and passes through the inner side in the vehicle width direction than the bracket 25 of the door checker.

  As shown in FIG. 1, at the upper position of the door striker 24, the first seal branch part 31b branches backward from the seal main body part 31a and extends downward, and further two seal re-branches from the first seal branch part 31b. The parts 31d and 31e extend rearward and downward. A drainage passage 32 that opens downward is formed between the seal body 31a and the lower end of the first seal branch 31b. Further, at the position below the door striker 24, the second seal branch portion 31g branches from the seal main body portion 31a to the rear lower portion.

  As shown in FIG. 3, at a position above the bracket 25 of the door checker, a first seal branch portion 31c branches from the seal body portion 31a outward in the vehicle width direction and extends downward, and further from the first seal branch portion 31c. The seal re-branch portion 31f extends downward in front of the book. A drainage passage 33 that opens downward is formed between the seal body 31a and the lower end of the first seal branch 31c. Further, at a position below the bracket 25 of the door checker, the second seal branch portion 31h branches from the seal main body portion 31a to the front lower portion.

  In this way, a gap α about the thickness of the seal member 31 is formed between the vehicle body skeleton 10 and the side outer panel 27 facing each other with the seal member 31 interposed therebetween.

  FIG. 5 shows a horizontal cross section of the rear pillar 14, and the side outer panel 27 extends along the first side wall 14 b, the second front wall 14 c and the second side wall 14 d of the rear pillar 14 with a gap α. A door striker 24 fixed to the second front wall 14 c of the rear pillar 14 projects forward through the mounting opening 27 a of the side outer panel 27. A first side wall 23a, a rear wall 23b, and a second side wall 23c of the door inner panel 23 of the door 22 are opposed to the side outer panel 27 via a gap β, and a door seal 30 provided at the front end of the side outer panel 27 is a door. It contacts the first side wall 23a of the inner panel 23. The seal body 31 a of the seal member 31 is positioned between the first side wall 14 b of the rear pillar 14 and the side outer panel 27, and the second end of the seal member 31 is positioned between the second side wall 14 d of the rear pillar 14 and the side outer panel 27. One seal branch 31b is located.

  FIG. 4 shows a vertical cross section of the side sill 12 along the vehicle width direction. The side sill 12 fixed to the upper surface of the outer end portion of the floor panel 11 in the vehicle width direction is inclined downward from the inner side to the outer side in the vehicle width direction. And the vertical wall 12b extending downward from the outer end in the vehicle width direction of the inclined wall 12a, and the side outer panel 27 has a clearance α between the inclined wall 12a and the vertical wall 12b of the side sill 12. Facing each other.

  As shown in FIGS. 2 and 4, the lower part of the side sill 12 and the outer end of the floor panel 11 in the vehicle width direction are covered with a side sill garnish 34 having a U-shaped cross section that opens toward the inner side in the vehicle width direction. Since the bottom inner surface of the side sill garnish 34 having a U-shaped cross section is connected to the outer end in the vehicle width direction of the floor panel 11, a bag structure portion γ where water easily collects is formed on the upper side of the side sill garnish 34. The seal body 31a of the seal member 31 is disposed on the vertical wall 12b of the side sill 12 facing the bag structure portion γ.

  Next, an embodiment of the present invention having the above configuration will be described.

  In FIG. 5, the water and sound (see arrow A) that have passed through the lip seal (not shown) at the rear edge of the door 22 pass through the gap β between the side outer panel 27 and the door inner panel 23. It passes through the mounting opening 27 a of the door striker 24 and enters the gap α between the rear pillar 14 and the side outer panel 27. However, even if water or sound that has entered the gap α advances in the direction of the arrow B and tries to enter the vehicle interior, it is blocked by the seal body 31a of the seal member 31 and is prevented from entering the vehicle interior.

  Further, water and sound (see arrow C) trying to enter the gap α between the rear pillar 14 and the side outer panel 27 from the rear wheel house 35 are blocked by the first seal branch portion 31b branching from the seal body portion 31a. Intrusion into the passenger compartment is more reliably prevented.

  Moreover, even if water enters the gap α between the seal main body portion 31a and the first seal branch portion 31b, the water flows down by gravity and is discharged from the drainage passage 32.

  The seal body 31a and the first seal branch 31c of the seal member 31 provided on the front pillar 12 side function in the same manner, and prevent water and sound from entering the vehicle interior.

  In FIG. 1, water that has entered the gap α between the rear pillar 14 and the side outer panel 27 flows downward due to gravity (see arrow a), but the water is moved away from the seal body 31a by the first seal branch 31b. And the seal re-branching portions 31d and 31e branched from the first seal branch portion 31b are guided further away from the seal main body portion 31a, so that water passes through the seal main body portion 31a and finally reaches the vehicle. In addition to being more reliably prevented from entering the room, it is possible to prevent the bolts or the like that fix the door striker 24 to the rear pillar 14 from getting wet and causing rust.

  In FIG. 3, water that has entered the gap α between the front pillar lower 13 and the side outer panel 27 flows downward due to gravity (see arrow b), but the water is removed from the seal body 31a by the first seal branch 31c. Since the water is guided further away from the seal body 31a by the seal re-branching portion 31f branched from the first seal branch 31b, water passes through the seal body 31a and finally reaches the vehicle. In addition to being more reliably prevented from entering the room, it is possible to prevent the bolts and the like that fix the bracket 25 of the door checker to the front pillar lower 13 from getting wet and causing rust.

  In FIG. 1, water flowing from the rear pillar 14 toward the side sill 12 (see arrow c) is guided rearward by the second seal branching portion 31g branched from the seal main body portion 31a. Intrusion into γ (see FIG. 4) is prevented, and water can be prevented from entering the bag structure γ and causing rusting. Similarly, in FIG. 3, the water flowing from the front pillar lower 13 toward the side sill 12 (see arrow d) is guided forward by the second seal branch portion 31h branched from the seal body portion 31a. Intrusion into the bag structure portion γ can be prevented, and water can be prevented from entering the bag structure portion γ and causing rust.

  Further, as shown in FIG. 4, the water (see arrow e) flowing through the inclined wall 12a through the gap α between the side sill 12 and the side outer panel 23 is disposed between the vertical wall 12b and the side outer panel 23. It is blocked by the seal body 31a of the seal member 31 and is prevented from entering the bag structure γ. The seal body 31a of the seal member 31 also functions to prevent sound from the gap α between the side sill 12 and the side outer panel 23 from entering the bag structure γ.

  As described above, according to the present embodiment, the first seal branch portions 31b and 31c branch from the seal main body portion 31a surrounding the door opening portion 10a of the vehicle body skeleton 10 are provided. 31c branches from the seal main body 31a above the door striker 24 and the door checker bracket 25 protruding from the vehicle body skeleton 10 to the outer surface of the vehicle body, and between the drain main passage 31 and the seal main body 31a below them. 33, the water that has entered the clearance α between the vehicle body skeleton 10 and the side outer panel through the mounting opening of the door striker 24 or the bracket 25 of the door checker from the clearance β between the door 22 and the side outer panel 27. In addition to preventing the sound and sound from entering the passenger compartment by the seal body 31a, the rear hoist It is possible to prevent water and sound that have entered the clearance α between the vehicle body skeleton 10 and the side outer panel 37 from other routes such as the wheel house 35 from being blocked by the first seal branch portions 31b and 31c and entering the vehicle interior. Moreover, the water that has entered the gap α between the seal body 31a and the first seal branch portions 31b and 31c can be discharged from the drainage passages 32 and 33 (see FIG. 1).

  Further, since the second seal branch portions 31g and 31h branch from the seal body portion 31a branch from the seal body portion 31a above the inlet of the bag structure portion γ, water that has entered the gap between the vehicle body skeleton 10 and the side outer panel 27 is removed. Intruding into the bag structure portion γ can be prevented by blocking the noise from the second seal branch portions 31g and 31h.

  Furthermore, since the seal body 31a seals the vertical wall 12b of the side sill 12 above the bag structure γ, the water flowing from the inclined wall 12a of the side sill 12 through the vertical wall 12b to the bag structure γ is effectively prevented. It can be blocked and sound can be blocked.

  Furthermore, since the seal member 31 includes seal re-branching portions 31d, 31e, 31f that branch downward from the first seal branch portions 31b, 31c and extend away from the door opening 10a, the first seal branch portions 31b, The effects of the first seal branch portions 31b and 31c can be further enhanced by blocking the water and sound toward the 31c with the seal re-branch portions 31d, 31e and 31f.

  The embodiments of the present invention have been described above, but various design changes can be made without departing from the scope of the present invention.

  For example, the in-vehicle component of the present invention is not limited to the door striker 24 and the door checker bracket 25 of the embodiment.

DESCRIPTION OF SYMBOLS 10 Body frame 10a Door opening part 12a Inclined wall 12b Vertical wall 24 Door striker (vehicle-mounted components)
25 Bracket (Automotive parts)
27 Side outer panel 31 Seal member 31a Seal body portions 31b, 31c First seal branch portions 31d, 31e, 31f Seal re-branch portions 31g, 31h Second seal branch portion 32 Drain passage 33 Drain passage γ Bag structure portion

Claims (5)

A seal member (31) is provided between the periphery of the door opening (10a) of the vehicle body skeleton (10) configured in a bathtub shape with fiber reinforced resin and the side outer panel (27) disposed on the outer side in the vehicle width direction. A vehicle body structure that is sealed by
The seal member (31) includes a seal main body (31a) surrounding at least a part of the periphery of the door opening (10a) of the vehicle body skeleton (10), and a first branched from the seal main body (31a). The first seal branch part (31b, 31c) includes a seal branch part (31b, 31c) above the vehicle-mounted parts (24, 25) protruding from the vehicle body skeleton (10) to the vehicle body outer surface side. A vehicle body that branches off from the main body (31a) and that forms a drainage passage (32, 33) between the main body (31a) and the seal main body (31a) below the in-vehicle components (24, 25). Construction.   The vehicle body skeleton (10) includes a bag structure portion (γ) through which water and sound enter from the outside, and second seal branch portions (31g, 31h) branched from the seal body portion (31a) serve as the bag structure portion ( The vehicle body structure according to claim 1, characterized in that it branches off from the seal main body (31a) above the inlet of (γ).   The vehicle body structure according to claim 2, wherein the seal main body portion (31a) seals a vertical wall (12b) standing in a vertical direction above the bag structure portion (γ).   The automobile according to claim 3, wherein the inclined wall (12a) continuous to the vertical wall (12b) is inclined obliquely upward from the upper end of the vertical wall (12b) toward the inner side in the vehicle width direction. Car body structure.   The seal member (31) includes a seal re-branching portion (31d, 31e, 31f) that branches downward from the first seal branch portion (31b, 31c) and extends in a direction away from the door opening (10a). The vehicle body structure according to any one of claims 1 to 4, wherein the vehicle body structure is characterized in that:

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