JP5149571B2 - Vehicle rear body structure - Google Patents

Description

  The present invention relates to a vehicle body rear portion structure in which a rear gate is provided at the rear portion of a vehicle body so as to be opened downward.

  In Patent Literature 1, a gate outer panel and a gate inner panel are integrally coupled so as to have an internal space to form a rear gate, and a rear bumper extending in a vehicle width direction below the rear gate and a rear bumper, There has been disclosed a vehicle body rear structure which is made to be substantially flush with each other in the vehicle width direction so as to provide a sense of unity between the two and enhance design.

  Thus, if the rear gate lower end and the rear bumper are substantially flush with each other, the vehicle may lightly collide with the lower end of the rear gate from the rear of the vehicle body.

Therefore, in this Patent Document 1, an elastic portion made of a concavo-convex shape portion is provided at the lower end portion of the gate inner panel of the rear gate, and when the vehicle lightly collides with the lower end portion of the rear gate from the rear of the vehicle body, the impact is absorbed and relaxed by the elastic portion. To prevent damage to the rear gate.
JP-A-2005-343408 (pages 4-6, FIG. 2)

  However, in the above-mentioned Patent Document 1, when the vehicle collides lightly with the rear gate lower end portion from the rear of the vehicle body, the joint portion between the gate outer panel lower end portion and the gate inner panel lower end portion is released due to the impact, and from that portion to the inner space of the rear gate. Water such as car wash water will enter. If the rear gate is opened from this state, the water may wet the electrical system in the internal space or leak into the passenger compartment.

  The present invention has been made in view of the above points, and the object of the present invention is to provide water such as car wash water from the lower end joint of the gate outer panel and the gate inner panel that has been removed by a light collision from the rear of the vehicle body. Even if it enters the space, this water prevents the electric system in the interior space from getting wet or leaking into the passenger compartment when the rear gate is opened.

  In order to achieve the above object, the present invention is characterized in that the shape of the lower end portion of the rear gate is devised, and the internal space of the lower end portion and the internal space above it are blocked.

  Specifically, the present invention includes a resin rear gate in which a gate outer panel and a gate inner panel are integrally coupled so as to have an internal space, and a rear bumper extending in the vehicle width direction below the rear gate, The rear gate is designed for the rear structure of a vehicle body that has an upper end pivotally supported by the upper edge of the opening at the rear of the vehicle body so that the opening can be opened and closed downward. .

That is, according to the first aspect of the present invention, the lower end portion of the rear gate has a projecting shape portion having a rear projecting surface portion that is substantially flush with the rear bumper in the vertical direction and the vehicle width direction when the rear gate is closed. The gate outer panel and the gate inner panel are integrally protruded toward the rear, and the entire upper edge, the side edges on both sides in the vehicle width direction, and the rear projecting surface portion are separated from each other. The inner space in the rear gate is partitioned by the adhesive seal portion into an upper internal space surrounded by the adhesive seal portion and a lower internal space on the protruding shape portion side. And an electrical system is housed in the upper internal space .

According to a second aspect of the present invention, in the first aspect of the invention, the upper internal space communicates with the lower internal space or outside the gate inner panel through a through hole, and the through hole is formed from a thin plate. The valve body is configured to be openable and closable from the lower inner space side or the gate inner panel outer side, and the valve body is configured to open from the upper inner space side by the weight of water that has entered the through hole. It is characterized by being.

Invention according to claim 3, in the invention of claim 1 or 2, portions corresponding to the lower adhesive seal part at a position spaced above the said rearward projection surface of the adhesive seal part, or the lower between the adhesive seal part corresponding portion and the rearward projection surface, characterized in that the constricted shape portion of the gate outer panel and the said gate inner panel is constricted by proximity or contact is formed.

Invention according to claim 4, in the invention described in claim 3, the upper surface portion of the rear bumper, extending a back wall attached to the body panel extends upward, toward the rear of the vehicle body from該奥wall lower horizontal recess having a wall formed corresponding to the protruding shaped portion, while the gate inner panel, said than rearward projection surface at a position spaced upwardly against close or equivalent to the gate outer panel the constricted shape portion to form a to form a剔Re section was剔the rear of the vehicle body to be located on the rear side of the gate inner panel lower portion of該括Re-shaped section the rearward projection surface extending downward from the closed state of the rear gate Thus, the projecting shape part fits in the concave part, and the vehicle body panel on the back wall side faces the bent part and is substantially flush with the gate inner panel above the bent part in the vertical direction and the vehicle width direction. Continuously And said that you are.

  According to the first aspect of the present invention, when the vehicle lightly collides with the rear projecting surface portion of the projecting shape portion which is the lower end portion of the rear gate from the rear of the vehicle body, the rear projecting surface portion is elastically deformed and the shock is absorbed and relaxed.

  Furthermore, since the adhesive seal portion is located above the rear projecting surface portion, even if the joint portion between the gate outer panel lower end portion and the gate inner panel lower end portion is removed by a light collision, the influence is affected by the adhesive seal portion. Therefore, the adhesive seal portion does not come off, and a watertight adhesive state is ensured. Therefore, when the rear gate is opened, water such as car wash water entering the inner space of the lower end of the rear gate is blocked by the adhesive seal portion, and the inside of the lower region (the upper region of the rear protruding surface portion in the closed state) It is prevented from entering the space, and the situation where the electric system in the internal space gets wet and the situation where it leaks into the passenger compartment is eliminated. In addition, the adhesive seal portion is not only located above the rear protruding surface portion but also continuously on the upper edge of the rear gate and the side edge on both sides in the vehicle width direction so as to form an internal space above the rear protruding surface portion of the rear gate. Since it is surrounded, water such as car wash water does not enter the internal space from above and from the side.

According to the second aspect of the present invention, even if water such as car wash water enters the upper internal space, the valve body is opened by the weight of the water that has entered the through-hole, so that the intruded water is in the upper internal space. Discharged from. When the rear gate is opened, the valve body closes the through hole from above. Therefore, when the through hole is covered with the valve body from the lower internal space side, water enters the lower internal space. However, the intrusion water does not enter the upper internal space from the through hole.

According to the invention which concerns on Claim 3 , the elastic deformation of a back protrusion surface part is stopped by a constriction-shaped part, it becomes difficult to reach the upper area | region, and it can prevent reliably that the said adhesive seal part remove | deviates.

According to the fourth aspect of the present invention, when the rear gate is closed, the projecting shape portion fits in the recess in the upper surface portion of the rear bumper, and the vehicle body panel attached to the rear wall of the recess has the bottom of the gate inner panel. Since the gate inner panel above the bent part and the gate inner panel facing the bent part are substantially flush with the vertical direction and the vehicle width direction, the bent part is covered with the vehicle body panel and cannot be seen from the vehicle interior side. Does not spoil the appearance.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 4 is a perspective view of the vehicle 1 to which the vehicle body rear portion structure according to the first embodiment of the present invention is applied as viewed from the rear. The vehicle 1 includes a resin rear gate 3 and a resin rear bumper 5 extending in the vehicle width direction below the rear gate 3, and the rear gate 3 pivots on the upper edge of the opening 7 a at the rear of the vehicle body 7. The opening 7a is opened and closed so as to be opened downward by extending and contracting a pair of left and right damper stays (not shown).

  As shown in FIGS. 1 to 3, the rear gate 3 is configured such that a gate outer panel 9 and a gate inner panel 11 are integrally coupled so as to have an internal space S. As shown in FIG. 1, the coupling form is such that the fitting protrusion 9a formed on the lower edge of the gate outer panel 9 is fitted into the fitting recess 11a formed on the lower edge of the gate inner panel 11 at the lower edge of the rear gate 3. The fitting locations are integrally bonded and bonded with the adhesive 13. As shown in FIG. 2, the seal groove 11b formed on the side edge of the gate inner panel 11 is filled with the adhesive 13 at the side edges on both sides in the vehicle width direction of the rear gate 3, and the edge on the gate outer panel 9 side is The both are integrally bonded and bonded with an adhesive 13 so as to correspond to the seal groove 11b. Although not shown in the figure, the upper edge of the rear gate 3 is filled with the adhesive 13 in the seal groove 11b formed in the upper edge of the gate inner panel 11 and the upper edge of the gate outer panel 9 is connected to the seal groove, as in the case of the rear gate 3 side edge. The two are integrally bonded and bonded by an adhesive 13 corresponding to 11b. The adhesives 13 in the seal grooves 11b formed on the edge of the gate inner panel 11 and the upper edge of the gate inner panel 11 are continuous with each other without interruption.

  The rear bumper 5 is attached to the outer panel 15a of the vehicle body panel 15 constituting the lower end edge of the opening 7a at the rear of the vehicle body 7, and the weather strip 17 fixed to the vehicle body panel 15 is connected to the gate inner panel when the rear gate 3 is closed. 11 is in contact with the vicinity of the lower end edge to ensure a sealed state of the vehicle interior, and the inner panel 15b of the vehicle body panel 15 is substantially flush with the gate inner panel 11 in the vertical direction and the vehicle width direction.

  At the lower end of the rear gate 3, a projecting shape portion 19 extending in the vehicle width direction is integrally projected toward the rear of the vehicle body. The protruding portion 19 includes a lower surface portion 19a that is close to and faces the upper surface portion 5a of the rear bumper 5 when the rear gate 3 is closed, and the rear bumper 5 that is continuous with the lower surface portion 19a and the rear gate 3 is closed. The rear projecting surface portion 19b that is substantially flush with the vertical direction and the vehicle width direction, and the inclined surface portion 19c that is continuous with the rear projecting surface portion 19b and tilts upward toward the front of the vehicle body.

  A seal groove 9b extending in the vehicle width direction is formed in the gate outer panel 9 at a position closer to the base end of the inclined surface portion 19c of the protruding shape portion 19, that is, at a position away from the rear protruding surface portion 19b. On the other hand, near the lower end of the gate inner panel 11, a sealing rib 21 extending in the vehicle width direction is supported from the upper and lower sides by a plurality of reinforcing ribs 23 so as to face the sealing groove 9b toward the rear of the vehicle body. Projected as a single unit. The tip of the sealing rib 21 is inserted and fixed in the sealing groove 9 b filled with the adhesive 13. The adhesive 13 in the seal groove 9b continues to the adhesive 13 in the seal groove 11b at the edge on the gate inner panel 11 side without interruption.

As a result, the adhesive 13 extends over the entire upper edge of each of the gate outer panel 9 and the gate inner panel 11, the side edge on both sides in the vehicle width direction, and a position separated above the rearward projecting surface portion 19 b. The adhesive seal portion 25 is continuously formed, and the gate outer panel 9 and the gate inner panel 11 are water-tightly bonded by the adhesive seal portion 25 (see the one-dot chain line in FIG. 3). In FIG. 1, a lower adhesive seal portion 25 a that is located above the rear projecting surface portion 19 b of the adhesive seal portion 25 appears. In FIG. 2, side adhesive seal portions 25b on both sides in the vehicle width direction appear. Although the upper adhesive seal portion 25c at the upper edge is not shown in detail, the region is shown in FIG. 3 together with the lower adhesive seal portion 25a and the side adhesive seal portion 25b. The inner space S in the rear gate 3 is divided into an upper inner space S1 surrounded by the adhesive seal portion 25 and a lower inner space S2 on the projecting shape portion 19 side. An electric system (not shown) is stored in the upper internal space S1 that is partitioned by the portion 25a.

A through hole 26 penetrating in the vertical direction is formed near the base end of the sealing rib 21, and a valve body 27 made of a thin rubber plate covers the through hole 26 on the lower surface of the sealing rib 21. Are attached with rivets 29. That is, the upper inner space S1 and the lower inner space S2 are communicated with each other through the through hole 26, and the through hole 26 is covered with the valve body 27 so as to be opened and closed from the lower inner space S2 side. Yes. The valve body 27 is provided in this way, although the upper internal space S1 is sealed by the adhesive seal portion 25, but if the water such as car wash water enters the upper internal space S1, the through hole 26 is provided. The valve body 27 is opened by the weight of the water that has entered, and the intrusion water is moved (discharged) from the upper internal space S1 to the lower internal space S2, and is provided below the contact point with the weather strip 17 ( not shown). This is for discharging from the discharge port to the outside of the rear gate 3. The valve body 27 is provided on the lower surface of the sealing rib 21 because, when the rear gate 3 is opened, the valve body 27 closes the through hole 26 from above and the intrusion water in the lower internal space S2 penetrates. This is to prevent movement (intrusion) from the hole 26 into the upper internal space S1, and the valve element 27 is a so-called one-way valve that opens in one direction.

  As described above, in the first embodiment, the protruding portion 19 is provided at the lower end of the resin rear gate 3 so that the rear protruding surface portion 19b, which is the protruding end surface, is connected to the rear bumper 5 in the vertical direction and the rear bumper 5 in the closed state. Since they are substantially flush with each other in the vehicle width direction, when the vehicle 1 lightly collides with the rear projecting surface portion 19b from the rear of the vehicle body 7, the rear projecting surface portion 19b can be elastically deformed to absorb and reduce the impact.

Furthermore, in this Embodiment 1, since the side adhesive seal part 25b of the adhesive seal part 25 is provided in the position away from the rear protrusion surface part 19b, the lower end part of the gate outer panel 9 and the lower end part of the gate inner panel 11 Even if the joint portion is detached due to a light collision, it is difficult to affect the lower adhesive seal portion 25a, and the lower adhesive seal portion 25a can be prevented from coming off, and a watertight adhesive state can be secured. Therefore, when the rear gate 3 is opened, water such as car wash water entering the lower inner space S2 at the lower end of the rear gate 3 is blocked by the lower adhesive seal portion 25a (seal rib 21), and the region below the lower gate 3 is blocked. It is possible to prevent intrusion into the internal space S (the upper internal space S1 in the upper region of the rear projecting surface portion 19b in the closed state), and the situation where the electrical system in the upper internal space S1 is wetted or the situation where it leaks into the vehicle interior is eliminated. it can. At this time, since the valve body 27 closes the through hole 26 from above, intrusion water in the lower internal space S2 does not enter the upper internal space S1 from the through hole 26. The adhesive seal portion 25 is not only located above the rear projecting surface portion 19b but also continuously on the upper edge of the rear gate 3 and the side edges on both sides in the vehicle width direction. Therefore, water such as car wash water can be prevented from entering the upper internal space S1 of the rear gate 3 from above and from the side. In the unlikely event that water such as car wash water enters the upper internal space S1, the valve element 27 is opened by the weight of the water that has entered the through hole 26, and the lower internal space S2 and the drain port are opened from the upper internal space S1. After that, the intruding water is discharged out of the rear gate 3.

  In the first embodiment, the sealing rib 21 in the lower adhesive seal portion 25a is formed on the gate inner panel 11 side, and the seal groove 9b is formed on the gate outer panel 9 side.

(Embodiment 2)
FIG. 5 shows a vehicle body rear part structure according to the second embodiment. In the second embodiment, on the upper surface portion 5a of the rear bumper 5, a rear wall 5b extending upward and attached to the outer panel 15a of the vehicle body panel 15 by a fastener 30 and a horizontal wall extending from the lower end of the rear wall 5b to the rear of the vehicle body 7 are provided. A recess 5 d having 5 c is formed corresponding to the protruding shape portion 19.

On the other hand, the gate outer panel 9 and the gate inner panel 11 come into contact with the gate inner panel 11 at a location corresponding to the lower adhesive seal portion 25a at a position away from the rear protruding surface portion 19b in the adhesive seal portion 25. Thus, a constricted shape portion 31 constricted toward the rear of the vehicle body 7 is formed. Further, the gate inner panel 11 below end, extending downwardly from said constricted shape portion 31 positioned on the rear side of the rear protruding surface portion 19b, Re剔was剔the vehicle body 7 rearward gate inner panel 11 lower part A portion 33 is formed.

  When the rear gate 3 is closed, the protruding portion 19 is received in the recess 5d, and the vehicle body panel 15 on the back wall 5b side faces the bend portion 33, and the inner panel 15b is the bend portion 33. It is substantially flush with the upper gate inner panel 11 in the vertical direction and the vehicle width direction.

  The lower end edge of the gate outer panel 9 and the lower end edge of the gate inner panel 11 are joined by a blind rivet 35.

  Further, the lower adhesive seal portion 25a of the adhesive seal portion 25 is filled with the adhesive 13 in the seal groove 11c near the lower end edge that is continuous with the seal groove 11b at the edge on the gate inner panel 11 side, and close to the lower end edge of the gate outer panel 9. In correspondence with the seal groove 11c, the two are integrally bonded and bonded together with an adhesive 13.

  Further, the through hole 26 and the valve element 27 are provided in the gate inner panel 11 at a position approaching above the lower adhesive seal portion 25 a and a position below the contact position with the weather strip 17.

  Therefore, in the second embodiment, the following effects can be obtained in addition to the effects described in the first embodiment.

  That is, in the second embodiment, the elastic deformation of the rear projecting surface portion 19b is stopped by the constricted shape portion 31 so that it does not easily reach the upper region, and the lower adhesive seal portion 25a can be reliably prevented from coming off.

  Further, in the second embodiment, when the rear gate 3 is closed, the projecting shape portion 19 is received in the recess 5d of the upper surface portion 5a of the rear bumper 5, and the vehicle body panel 15 attached to the back wall 5b of the recess 5d is Since the inner panel 15b faces the bent portion 33 at the lower end portion of the inner panel 11 and is substantially flush with the gate inner panel 11 above the bent portion 33 in the vertical direction and the vehicle width direction, It is possible to cover the portion 33 with the vehicle body panel 15 so as not to be seen from the vehicle interior side so as not to impair the appearance.

  In the second embodiment, the constricted portion 31 is formed on the gate inner panel 11 at a position corresponding to the lower adhesive seal portion 25a at a position separated from the rear protruding surface portion 19b in the adhesive seal portion 25. A constricted portion 31 may be formed between the portion corresponding to the lower adhesive seal portion 25a and the rear protruding surface portion 19b.

  Further, in the second embodiment, the gate outer panel 9 and the gate inner panel 11 are brought into contact with each other to form the constricted shape portion 31 that is constricted toward the rear of the vehicle body 7. However, the gate outer panel 9 and the gate inner panel 11 are close to each other. The constricted shape portion 31 may be formed in the state of being made to stay.

  The present invention is useful for a vehicle body rear portion structure in which a rear gate is provided at the rear portion of the vehicle body so as to be opened downward.

It is sectional drawing in the II line | wire of FIG. It is sectional drawing in the II-II line | wire of FIG. It is a front view of the rear gate in Embodiment 1. It is the perspective view which looked at the vehicle to which the vehicle body rear part structure which concerns on Embodiment 1 was applied from back. FIG. 3 is a diagram corresponding to FIG.

DESCRIPTION OF SYMBOLS 1 Vehicle 3 Rear gate 5 Rear bumper 5a Upper surface part 5b Back wall 5c Horizontal wall 5d Recess 7 Car body 7a Opening part 9 Gate outer panel 11 Gate inner panel 15 Car body panel 19 Projection shape part 19b Back protrusion surface part 25 Adhesive seal part 25a Lower adhesive seal part
26 through holes
27 Valve body 31 Constricted shape portion 33 Bending portion S Internal space S1 Upper internal space S2 Lower internal space

Claims (4)

A resin rear gate (3) in which the gate outer panel (9) and the gate inner panel (11) are integrally coupled so as to have an internal space (S) , and a rear extending in the vehicle width direction below the rear gate (3) and a bumper (5), the rear gate (3), as the upper end is opened and closed body (7) is pivotally supported to the rear of the opening (7a) upper edge and opening the (7a) so as to be downwardly opened A vehicle rear structure of the vehicle configured,
Above the rear gate (3) lower end, protruding shape portion having a rearward projection surface (19b) continuous with the substantially flush with the vertical direction and the vehicle width direction above the rear bumper (5) in the closed state of the rear gate (3) ( 19) is integrally projected toward the rear of the car body (7)
The gate outer panel (9) and the gate inner panel (11) cover the entire upper edge, the side edges on both sides in the vehicle width direction, and at positions spaced above the rear protruding surface portion (19b). Water-adhered by a continuous adhesive seal part (25) ,
The internal space (S) in the rear gate (3) is divided into an upper internal space (S1) surrounded by the adhesive seal portion (25) and a lower internal space (S2) on the protruding shape portion (19) side. A vehicle body rear structure, characterized in that it is partitioned by the adhesive seal portion (25) and an electric system is housed in the upper internal space (S1) . The vehicle body rear part structure according to claim 1,
The upper inner space (S1) communicates with the lower inner space (S2) or the gate inner panel (11) through a through hole (26),
The through hole (26) is covered with a valve body (27) made of a thin plate so as to be opened and closed from the lower inner space (S2) side or the gate inner panel (11) outside,
The vehicle body rear structure of the vehicle, wherein the valve element (27) is configured to open by the dead weight of water that has entered the through hole (26) from the upper internal space (S1) side. The vehicle body rear part structure according to claim 1 or 2 ,
Portion corresponding to the adhesive sealing portion lower adhesive seal part at a position spaced above the said rearward projection surface (19b) of (25) (25a), or the lower adhesive seal part (25a) corresponding portion and the rear between the projecting surface portion (19b) has a feature in that the gate outer panel (9) and the gate inner panel (11) and is constricted shape portion constricted by proximity or contact (31) is formed The vehicle body rear structure. The vehicle body rear part structure according to claim 3 ,
The upper surface portion (5a ) of the rear bumper (5) has a rear wall (5b) that extends upward and is attached to the vehicle body panel (15) , and a horizontal wall that extends from the lower end of the rear wall (5b) to the rear of the vehicle body (7). wall (5c) recess having a (5d) is formed corresponding to the protruding shaped portion (19),
On the other hand, the gate inner panel (11), together forming the constricted shaped portion (31) close to or in contact with the gate outer panel (9) at a position apart upward from the rearward projection surface (19b),該括Re-shaped portion (31) from Re剔was剔to the vehicle body (7) rearwardly positioned to the rear side of the gate inner panel (11) lower end portion of the rearward projection surface extending downward (19b) parts (33 )
In the closed state of the rear gate (3), the protruding portion (19) fits in the recess (5d) , and the vehicle body panel (15) on the back wall side (5b) faces the bend portion (33) . A vehicle body rear structure, characterized in that it is substantially flush with the gate inner panel (11) above the bent portion (33) in the vertical direction and the vehicle width direction.

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