JP6245456B2 - Vehicle pillar trim - Google Patents

Description

  The present invention relates to a pillar trim of a vehicle, and more particularly to a pillar trim in which a jump base that assists deployment of a curtain airbag is provided separately from a pillar trim body.

  A curtain airbag is known as equipment for protecting an occupant when a side collision occurs in a vehicle such as a passenger car (see Patent Document 1). As disclosed in Patent Document 1 and the like, the curtain airbag is disposed on the roof side above the pillar. A pillar trim is provided on the side of the passenger compartment of the pillar. A jump base having a guide wall is provided at the upper end of the pillar trim. The guide wall is an inclined surface that is inclined downward as it goes from the outside of the vehicle toward the passenger compartment. In the event of a side collision, the curtain airbag pushes open the roof lining while being inflated by the inflation gas, and is deployed in a curtain shape in the passenger compartment. At this time, the curtain airbag can be assisted smoothly by the guide wall of the jump stand.

JP 2001-246989 A

If the jump stand is integrated with the pillar trim main body, the degree of freedom in shape is reduced due to mold restrictions. On the other hand, when the jump stand is separate from the pillar trim body, the pillar trim body can remain in the same position without following the displacement when the jump stand is displaced downward or to the outside of the vehicle by the deployment load of the curtain airbag. There is sex. Then, it is conceivable that the curtain airbag being deployed is caught on the upper end portion of the pillar trim body, leading to poor deployment.
In view of such circumstances, the present invention provides a jump stand mounting structure in which the pillar trim body can reliably follow the displacement of the jump stand due to the deployment load of the curtain airbag in the pillar trim in which the jump stand is separated from the pillar trim body. Is to provide.

In order to solve the above problems, the present invention is a pillar trim provided in a vehicle having a curtain airbag,
A pillar trim main body and a jump stand for assisting in the deployment of the curtain airbag are provided separately from each other,
On the upper part of the surface facing the vehicle outer side in the vehicle width direction of the pillar trim body, a base mounting part is provided,
A guide wall inclined downward toward the passenger compartment side in the vehicle width direction; a shelf wall that extends below the guide wall and covers an upper end portion of the stand mounting portion; and the vehicle on the shelf wall An attachment wall that extends downward from the outer end and covers the vehicle outer surface of the base mounting portion,
A first fitting hole is formed in one of the shelf wall and the upper end of the base mounting portion.
On the other of the shelf wall and the upper end portion of the base mounting portion, a first fitting convex portion that is fitted into the first fitting hole is formed,
A second fitting hole is formed in one of the outside wall surface of the adherend wall and the base mounting portion,
A second fitting convex portion that is fitted into the second fitting hole is formed on the other side of the outside surface of the mounting wall and the base mounting portion.

  By fitting the first fitting convex portion into the first fitting hole, it is possible to restrict relative displacement between the shelf wall and the base mounting portion in at least the vehicle width direction, and as a result, the jump base and the The relative displacement of the pillar trim bodies in at least the vehicle width direction can be restricted. Further, by fitting the second fitting convex part into the second fitting hole, it is possible to restrict relative displacement in at least the vertical direction between the adherend wall and the base attaching part, and consequently the jump base. And the relative displacement in the vertical direction between the pillar trim bodies can be restricted. As a result, when deploying the curtain airbag, if the jumping base tries to displace to the outside or the bottom of the vehicle under the deployment load from the curtain airbag, the pillar trim body will move along with the jumping base. Can be displaced. As a result, it is possible to prevent problems such as the curtain airbag being caught on the upper end of the pillar trim body.

The first fitting convex portion has a plate-like vehicle width direction restraining portion extending upward from the base mounting portion and having a width direction perpendicular to the extending direction in the vehicle width direction,
The second fitting convex portion has a plate-like vertical direction restraining portion that protrudes from the base mounting portion to the vehicle outer side in the vehicle width direction and whose width direction orthogonal to the protruding direction is directed up and down. It is preferable.
The first fitting convex portion including the vehicle width direction restraining portion is fitted into the first fitting hole of the shelf wall, and the second fitting convex portion including the vertical restraining portion is second fitted to the adherend wall. Fit into the hole. Thereby, the pillar trim main body and the jump stand can be reliably restrained in the vehicle width direction and the vertical direction. Therefore, the pillar trim main body can be surely followed by the jump base and displaced integrally.

The base mounting portion is formed with a convex plate portion that protrudes to the vehicle outer side in the vehicle width direction and extends vertically, and the vehicle width direction restraining portion is connected to an upper end portion of the convex plate portion, and the convex plate portion It is preferable that the up-and-down direction restraint part is continued to the lower end part.
Thus, the pillar trim body can be displaced with the jump base more reliably.

  According to the present invention, the pillar trim body can surely follow the displacement of the jump base caused by the deployment load of the curtain airbag. As a result, it is possible to prevent problems such as the curtain airbag being caught on the upper end of the pillar trim body.

Fig.1 (a) is the front view which looked at the pillar trim which concerns on one Embodiment of this invention from the compartment side of the vehicle width direction. FIG. 1B is a rear view of the pillar trim as viewed from the vehicle outer side in the vehicle width direction. FIG. 2A is an exploded front view in which the pillar trim is disassembled into a pillar trim body and a jump base. FIG. 2B is an exploded rear view of the pillar trim. FIG. 3A is an exploded perspective view of the pillar trim as viewed from the passenger compartment side. FIG. 3B is a perspective view of the pillar trim in the assembled state as viewed from the passenger compartment side. FIG. 4A is an exploded perspective view of the pillar trim as viewed from the outside of the vehicle. FIG. 4B is a perspective view of the pillar trim in the assembled state as seen from the vehicle outer side. FIG. 5 is a cross-sectional view taken along the line V-V in FIG. 1 of the upper part of the pillar provided with the pillar trim. 6 is a cross-sectional view taken along the line VI-VI in FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. Fig.8 (a) is sectional drawing which follows the VIIIa-VIIIa line | wire of FIG. FIG. 8B is a sectional view taken along line VIIIb-VIIIb in FIG. FIG. 9 is a cross-sectional view showing the curtain airbag in FIG. 6 when deployed.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 5, a pillar trim 3 (vehicle interior) is provided on the passenger compartment side of the pillar 1 b (vehicle body) of the vehicle 1. A curtain airbag module 2 is provided in the roof 1 a above the pillar trim 3. The curtain airbag module 2 accommodates a curtain airbag 2a in a deployable manner.

  As shown in FIGS. 1 and 2, the pillar trim 3 includes a pillar trim main body 10 and a jump base 20. The pillar trim body 10 is configured by, for example, injection molding a resin such as polypropylene. The pillar trim body 10 extends vertically. The front side surface of the pillar trim body 10 is directed toward the vehicle compartment side in the vehicle width direction (front side of the sheet in FIG. 1A). The back surface of the pillar trim main body 10 is directed to the vehicle outer side in the vehicle width direction (front side in FIG. 1B). As shown in FIG. 7, the horizontal cross section of the pillar trim body 10 has a gentle U shape.

  As shown in FIG. 3A, a jump base 20 is provided on the top of the pillar trim body 10. As shown in FIG. 9, the jump stand 20 has a role of assisting when the curtain airbag 2a is deployed. As shown in FIG. 3A, the jump stand 20 according to the embodiment of the present invention is separate from the pillar trim body 10. The jump table 20 is configured by injection molding a resin such as polypropylene. The material of the jump base 20 may be the same type of resin as the pillar trim main body 10, or may be a different type of resin from the pillar trim main body 10.

  As shown in FIG. 2A, in detail, the jumping base 20 integrally includes a guide wall 21, an intermediate wall 22, a shelf wall 25, and a deposition wall 26. As shown in FIGS. 5 and 6, the guide wall 21 is inclined downward from the upper end portion toward the vehicle compartment side (left side in FIG. 5) in the vehicle width direction. The thickness of the guide wall 21 is larger than the thickness of the lower walls 22, 25, 26.

  An intermediate wall 22 is connected to the lower end of the guide wall 21. The intermediate wall 22 is inclined downward from the guide wall 21 toward the vehicle outer side in the vehicle width direction (right side in FIG. 5).

  As shown in FIG. 4A, a plurality of reinforcing ribs 23 are formed on the back surfaces (surfaces facing the vehicle exterior side) of the guide wall 21 and the intermediate wall 22. The reinforcing rib 23 extends vertically and straddles the guide wall 21 and the intermediate wall 22.

  As shown in FIG. 5, the shelf wall 25 protrudes from the lower end portion of the intermediate wall 22 to the outside of the vehicle in the vehicle width direction. As shown in FIG. 4, the lower end portion of the reinforcing rib 23 is integrally connected to the upper surface of the shelf wall 25.

  As shown in FIG. 2, a split groove 29 is formed at the center of the jump base 20. The dividing groove 29 reaches the upper end portion of the guide wall 21 and extends downward therefrom, and divides the guide wall 21, the intermediate wall 22, and the shelf wall 25 into two. As shown in FIG. 4, the 1st fitting hole 25b is formed in the both sides across the division | segmentation groove | channel 29 of the shelf wall 25. As shown in FIG.

  As shown in FIGS. 4 and 5, the adherend wall 26 is connected to the lower end portion of the intermediate wall 22 via the shelf wall 25. The deposition wall 26 extends downward from the end of the shelf wall 25 on the vehicle exterior side. As shown in FIG. 4A, a rim 24 is formed on the peripheral edge of the adherend wall 26.

  As shown in FIGS. 5 and 7, a clip seat 30 is formed at the center of the adherend wall 26. The clip seat 30 protrudes from the adherend wall 26 to the vehicle outer side (upper side in FIG. 7) in the vehicle width direction and extends vertically (in a direction perpendicular to the paper surface of FIG. 7). As shown in FIG. 7, the clip seat 30 has a U-shaped cross section. Specifically, the clip seat 30 includes a seat plate portion 31 and a pair of side plate portions 32 and 32. A clip mounting hole 34 and a load delivery portion 35 are formed in the seat plate portion 31. As shown in FIG. 7, the clip mounting hole 34 reaches the side plate portion 32 on one side from the center portion of the seat plate portion 31. The pair of side plate portions 32 are relatively thin, and the cross section is bent in a step shape. As a result, the clip seat 30 is moderately weakened.

  As shown in FIG. 2B, a load delivery portion 35 is provided above and in the vicinity of the clip mounting hole 34 in the seat plate portion 31. The load delivery portion 35 has a U-shaped cross section and protrudes from the seat plate portion 31 toward the vehicle outer side in the vehicle width direction (front side in FIG. 2B). As shown in FIG. 2A and FIG. 5, a rib 36 is provided on the surface of the seat plate portion 31 opposite to the load delivery portion 35. The rib 36 protrudes from the seat plate portion 31 toward the passenger compartment side in the vehicle width direction (front side in FIG. 2A) and extends vertically.

  As shown in FIGS. 5 and 7, the internal space of the clip seat 30 having a U-shaped cross section is open to the vehicle compartment side in the vehicle width direction and vertically (in the direction orthogonal to the plane of FIG. 7). The dividing groove 29 is continuous with the internal space of the clip seat 30. In other words, the dividing groove 29 extends into the clip seat 30.

  As shown in FIG. 5, the clip 40 is mounted in the clip mounting hole 34. The clip 40 is locked in the clip locking hole 1c of the pillar 1b. Thus, the jumping base 20 is attached to the pillar 1b via the clip 40. The load delivery part 35 is inserted in the hole-like load receiving locking part 1d of the pillar 1b. The load applied to the clip seat 30 can be transferred to the pillar 1b (vehicle body) via the load transfer portion 35.

<Connecting structure of pillar trim body 10 and jump stand 20>
The pillar trim body 10 and the jump stand 20 are connected as follows.
As shown in FIG. 4A, the base mounting portions 12 are provided on both side portions of the upper portion of the pillar trim main body 10. As shown in FIG. 7, each base mounting portion 12 has a pedestal shape that protrudes from the back surface of the pillar trim body 10 (the vehicle outer surface in the vehicle width direction). As shown in FIG. 4A, the base mounting portion 12 is formed with a first fitting convex portion 15 and a second fitting convex portion 16 that are close to each other. The first fitting convex portion 15 extends upward from the upper end portion of the base mounting portion 12. The cross-sectional shape of the first fitting convex portion 15 in plan view is a T shape.

  Specifically, as shown in FIGS. 8A and 8B, the first fitting convex portion 15 includes a vehicle length direction restraint portion 15x and a vehicle width direction restraint portion 15y. The vehicle length direction restricting portion 15x has a plate shape with the width direction directed in the vehicle length direction. A vehicle width direction restricting portion 15y protrudes from the center of the vehicle length direction restricting portion 15x to the vehicle outer side in the vehicle width direction. The vehicle width direction restricting portion 15y has a plate shape in which the width direction (the direction orthogonal to the upward extending direction from the base mounting portion 12) is directed in the vehicle width direction.

  As shown in FIGS. 4A and 8B, a second fitting convex portion 16 is provided at the center of the base mounting portion 12. The second fitting convex portion 16 is formed in a cross-shaped rib shape, and protrudes from the base mounting portion 12 to the vehicle outer side in the vehicle width direction (front side in FIG. 8B). Specifically, as shown in FIG. 8B, the second fitting convex portion 16 has a vertical direction restraint portion 16z and a vehicle length direction restraint portion 16x. The up-and-down direction restraint part 16z has a plate shape in which the width direction (direction perpendicular to the protruding direction from the base mounting part 12) is directed up and down. The vehicle length direction restricting portion 16x has a plate shape with the width direction directed in the vehicle length direction. The vertical direction restraint portion 16z and the vehicle length direction restraint portion 16x are orthogonal to each other.

  As shown in FIG. 4A and FIG. 8B, a convex plate portion 13 is provided between the first fitting convex portion 15 and the second fitting convex portion 16 of the base mounting portion 12. Yes. The convex plate portion 13 protrudes from the base mounting portion 12 to the vehicle outer side in the vehicle width direction (the front side in the drawing in FIG. 8B) and extends vertically. A vehicle width direction restricting portion 15 y is integrally connected to the upper end portion of the convex plate portion 13. The edge of the convex plate portion 13 on the vehicle outer side (the front side in the drawing in FIG. 8B) is flush with the vehicle outer edge 15ye of the vehicle width direction restricting portion 15y. In the lower end portion of the convex plate portion 13, an up / down direction restraining portion 16 z is integrally connected. The vertical direction restraint portion 16z and the vehicle length direction restraint portion 16x protrude beyond the convex plate portion 13 toward the vehicle outer side (the front side in the drawing in FIG. 8B).

  A cylindrical screw threaded portion 17 is formed below the second fitting convex portion 16 in the base mounting portion 12.

  As shown in FIG. 4, the 1st fitting hole 25b is formed in the both sides across the division | segmentation groove | channel 29 of the shelf wall 25. As shown in FIG. The first fitting hole 25b is formed in a quadrangular shape and penetrates the shelf wall 25 in the thickness direction (up and down).

  As shown in FIG. 4, a second fitting hole 26 c and an insertion hole 26 d are formed on both sides of the attachment wall 26 across the clip seat 30. The second fitting hole 26c is formed in a quadrangular shape and penetrates from the front side surface to the back side surface of the adherend wall 26 in the thickness direction. The second fitting hole 26c is disposed below and in the vicinity of the first fitting hole 25b. A circular insertion hole 26d is formed below the second fitting hole 26c.

As shown in FIG. 4B, the shelf wall 25 and the adherence wall 26 of the jump base 20 are overlapped on the back side (the vehicle outer side in the vehicle width direction) of the upper portion of the pillar trim body 10. As shown in FIG. 6, the shelf wall 25 covers the upper end portion of the base mounting portion 12. The 1st fitting convex part 15 is fitted by the 1st fitting hole 25b. Since the first fitting projection 15 has a T-shaped cross section, the insertion resistance during fitting can be reduced. Further, as shown in FIG. 8, both end edges 15xe, 15xe in the width direction of the vehicle length direction restricting portion 15x are in contact with, preferably in pressure contact with, the edges on both sides in the vehicle length direction of the first fitting hole 25b. . Further, the vehicle-facing side surface 15xa of the vehicle length direction restraint portion 15x and the vehicle outer side edge 15ye of the vehicle width direction restraint portion 15y abut against both edges of the first fitting hole 25b in the vehicle width direction. , Preferably in pressure contact.
The pillar trim body 10 and the jump base 20 are restrained in the vehicle width direction and the vehicle length direction by the fitting of the first fitting convex portion 15 and the first fitting hole 25b.

As shown in FIG. 6, the deposition wall 26 covers the vehicle outer surface of the base mounting portion 12. As shown in FIG. 4B, the second fitting convex portion 16 is fitted into the second fitting hole 26c. Since the 2nd fitting convex part 16 is cross-shaped, the insertion resistance at the time of fitting can be made small. Further, as shown in FIG. 8 (b), both end edges 16ze and 16ze in the width direction (up and down) of the up-and-down direction restricting portion 16z are in contact with the upper and lower edges of the second fitting hole 26c, preferably in pressure contact. Yes. Further, both end edges 16xe, 16xe in the width direction of the vehicle length direction restricting portion 16x are in contact with, preferably in pressure contact with, both side edges of the second fitting hole 26c in the vehicle length direction.
The pillar trim main body 10 and the jump stand 20 are restrained in the vertical direction and the vehicle length direction by the fitting of the second fitting convex portion 16 and the second fitting hole 26c.
Further, the screw 52 is screwed into the screw threaded portion 17 through the insertion hole 26d.

According to the pillar trim 3 having the above-described configuration, since the jump base 20 is separate from the pillar trim main body 10, it is easy to design a mold and increase the degree of freedom of the shapes of the pillar trim main body 10 and the jump base 20. Can do.
In the vehicle 1 provided with the pillar trim 3, as shown in FIG. 9, when inflation gas is introduced into the curtain airbag 2a, the curtain airbag 2a hits the guide wall 21 and is guided to the guide wall 21. Inflated and deployed toward the passenger compartment. At this time, a deployment load F of the curtain airbag 2a is applied to the guide wall 21. With this load F, the guide wall 21 tends to be displaced outward and downward in the vehicle width direction.

On the other hand, according to the pillar trim 3, the first fitting convex portion 15 is fitted into the first fitting hole 25b, so that the vehicle wall direction and the vehicle length direction between the shelf wall 25 and the base mounting portion 12 are. The relative displacement to can be regulated. As a result, the relative displacement of the jump stand 20 and the pillar trim body 10 in the vehicle width direction and the vehicle length direction can be restricted. Further, by fitting the second fitting convex portion 16 in the second fitting hole 26c, the relative displacement in the vertical direction and the vehicle length direction between the adherend wall 26 and the base mounting portion 12 can be restricted. As a result, the relative displacement of the jump stand 20 and the pillar trim body 10 in the vertical direction and the vehicle length direction can be restricted.
Therefore, when the jump base 20 is about to be displaced by receiving the deployment load from the curtain airbag 2a when the curtain airbag 2a is deployed, the pillar trim body 10 is also displaced together with the jump base 20 following this. be able to. As a result, it is possible to prevent problems such as the curtain airbag 2a being caught on the upper end of the pillar trim body 10.

  When an indoor impact is received, the split groove 29 of the jumping base 20 is deformed to widen, so that the impact can be absorbed. Furthermore, the impact can be further absorbed by the clip seat 30 having a weak structure being deformed or broken. On the other hand, when a load is applied to the clip seat 30 during assembly or during normal times, the load can be transferred to the pillar 1b (vehicle body) via the load transfer portion 35. Therefore, it is possible to prevent the clip seat 30 from being damaged or the clip 40 from coming off during assembly or normal times.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, the first fitting convex portion 15 may be provided on the jump base 20, and the first fitting hole 25 b may be provided on the base attaching portion 12 of the pillar trim body 10. The jump fitting 20 may be provided with the second fitting convex portion 16, and the pillar fitting main body 10 may be provided with the second fitting hole 26 c in the table mounting portion 12.
The shapes of the fitting protrusions 15 and 16 and the fitting holes 25b and 26c can be arbitrarily modified. The first fitting convex portion 15 may have a cross-shaped cross section. The 1st fitting convex part 15 should just have the vehicle width direction restraint part 15y at least, and the vehicle length direction restraint part 15x may be abbreviate | omitted. The 2nd fitting convex part 16 should just have the up-down direction restraint part 16z, and the vehicle length direction restraint part 16x may be abbreviate | omitted.

  The present invention can be applied to a pillar trim of a vehicle.

DESCRIPTION OF SYMBOLS 1 Vehicle 2a Curtain airbag 3 Pillar trim 10 Pillar trim main body 12 Base attaching part 13 Convex board part 15 1st fitting convex part 15y Vehicle width direction restraint part 16 2nd fitting convex part 16z Vertical direction restraint part 20 Jump stand 21 Guide wall 25 Shelf wall 25b First fitting hole 26 Adhering wall 26c Second fitting hole

Claims (3)

A pillar trim provided in a vehicle equipped with a curtain airbag,
A pillar trim main body and a jump stand for assisting in the deployment of the curtain airbag are provided separately from each other,
On the upper part of the surface facing the vehicle outer side in the vehicle width direction of the pillar trim body, a base mounting part is provided,
A guide wall inclined downward toward the passenger compartment side in the vehicle width direction; a shelf wall that extends below the guide wall and covers an upper end portion of the stand mounting portion; and the vehicle on the shelf wall An attachment wall that extends downward from the outer end and covers the vehicle outer surface of the base mounting portion,
A first fitting hole is formed in one of the shelf wall and the upper end of the base mounting portion.
On the other of the shelf wall and the upper end portion of the base mounting portion, a first fitting convex portion that is fitted into the first fitting hole is formed,
A second fitting hole is formed in one of the outside wall surface of the adherend wall and the base mounting portion,
A pillar trim, wherein a second fitting convex portion that fits into the second fitting hole is formed on the other side of the outer wall surface of the mounting wall and the base mounting portion. The first fitting convex portion has a plate-like vehicle width direction restraining portion extending upward from the base mounting portion and having a width direction perpendicular to the extending direction in the vehicle width direction,
The second fitting convex portion has a plate-like vertical direction restraining portion that protrudes from the base mounting portion to the vehicle outer side in the vehicle width direction and whose width direction orthogonal to the protruding direction is directed up and down. The pillar trim according to claim 1.   The base mounting portion is formed with a convex plate portion that protrudes to the vehicle outer side in the vehicle width direction and extends vertically, and the vehicle width direction restraining portion is connected to an upper end portion of the convex plate portion, and the convex plate portion The pillar trim according to claim 2, wherein the vertical direction restraining portion is continuous with a lower end portion of the pillar trim.

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