JP6119250B2 - Vehicle pillar interior structure - Google Patents

Description

The present invention
Pillar panels provided on the side of the car body are covered with upper and lower trims,
The upper end of the lower trim is overlapped with the lower end of the upper trim from the vehicle interior side,
The upper trim includes a first side wall whose design surface faces inward in the vehicle width direction, a first front wall extending outward in the vehicle width direction from a side portion of the first side wall on the vehicle front side, and a vehicle rear side of the first side wall. A first rear wall extending outward in the vehicle width direction from the side portion of the side,
The lower trim includes a second side wall with a design surface facing inward in the vehicle width direction, a second front wall extending outward in the vehicle width direction from a vehicle front side side of the second side wall, and a vehicle rear side of the second side wall. The present invention relates to a pillar interior structure of a vehicle including a second rear wall extending outward in the vehicle width direction from the side portion of the vehicle.

As disclosed in Patent Document 1, conventionally, in the above-described pillar interior structure of a vehicle, the lower end portion of the first front wall and the lower end portion of the first rear wall of the upper trim are arranged in the vehicle width direction (inside the vehicle interior). ) Is provided, and an engagement hole is formed in the connection surface. Then, a pair of cross-shaped engaging claws are protruded from the upper end of the lower trim to the vehicle width direction outer side (vehicle compartment outer side), and the pair of engaging claws are individually engaged with the pair of engaging holes. there were.
That is, the engagement hole is provided only on the connecting surface facing the vehicle width direction inner side (vehicle interior side), and the engagement direction between the engagement claw and the engagement hole is set only in the vehicle width direction.

      Noto 2606306 gazette

The lower end portion of the upper trim and the upper end portion of the lower trim are formed in a substantially C-shaped cross section as described at the beginning. Therefore, in the structure in which the engagement direction of the engagement claw and the engagement hole is set only in the vehicle width direction, the fixing force in the vehicle front-rear direction of the upper end portion of the lower trim with respect to the lower end portion of the upper trim is insufficient, A gap was easily generated between the lower end and the upper end.
An object of the present invention is to provide a pillar interior structure for a vehicle that can prevent a gap from being generated between a lower end portion of an upper trim and an upper end portion of a lower trim and can improve appearance quality.

The features of the present invention are:
Pillar panels provided on the side of the car body are covered with upper and lower trims,
The upper end of the lower trim is overlapped with the lower end of the upper trim from the vehicle interior side,
The upper trim includes a first side wall whose design surface faces inward in the vehicle width direction, a first front wall extending outward in the vehicle width direction from a side portion of the first side wall on the vehicle front side, and a vehicle rear side of the first side wall. A first rear wall extending outward in the vehicle width direction from the side portion of the side,
The lower trim includes a second side wall with a design surface facing inward in the vehicle width direction, a second front wall extending outward in the vehicle width direction from a vehicle front side side of the second side wall, and a vehicle rear side of the second side wall. A pillar interior structure of a vehicle including a second rear wall extending outward in the vehicle width direction from a side portion of the vehicle,
A first engaging claw projects from the upper end of the second front wall to the vehicle rear side,
A stepped portion that enters the back side of the first front wall is formed at the lower end of the first front wall,
A second opening is formed in a step surface portion facing the vehicle front-rear direction of the step portion of the first front wall;
A first engaged portion that is engaged with the first engaging claw is provided on a peripheral portion of the second opening,
A second engagement claw is provided at the upper end of the second side wall;
A stepped portion that enters the back side of the first side wall is formed at the lower end of the first side wall,
A first opening is formed in the step surface portion facing the vehicle width direction of the step portion of the first side wall,
A second engaged portion with which the second engaging claw is engaged is provided at a peripheral edge portion of the first opening,
A third engagement claw projects from the upper end of the second rear wall to the vehicle front side,
A stepped portion that enters the back side of the first rear wall is formed at the lower end of the first rear wall,
A third opening is formed in the step surface portion facing the vehicle longitudinal direction of the step portion of the first rear wall,
A third engaged portion with which the third engaging claw is engaged is provided at a peripheral edge portion of the third opening . (Claim 1)

According to this configuration, the first front wall of the upper trim and the second front wall of the lower trim can be fixed in the vehicle front-rear direction by engaging the first engaging claw and the first engaged portion. .
Further, by engaging the third engaging claw and the third engaged portion, the first rear wall of the upper trim and the second rear wall of the lower trim can be fixed in the vehicle front-rear direction.
Furthermore, by engaging the second engaging claw and the second engaged portion, the first side wall of the upper trim and the second side wall of the lower trim can be fixed in the vehicle width direction.
That is, the upper end of the lower trim can be engaged and fixed in the vehicle longitudinal direction and the vehicle width direction with respect to the lower end of the upper trim. As a result, it is possible to prevent a gap from being generated between the lower end portion of the upper trim and the upper end portion of the lower trim, and it is possible to improve the appearance quality of the joint portion between the lower end portion of the upper trim and the upper end portion of the lower trim. .
A first engagement claw that protrudes from the upper end of the second front wall toward the vehicle rear side is inserted into the second opening from the vehicle front side and engages with the peripheral edge of the second opening. A third engagement claw that protrudes from the upper end of the second rear wall toward the vehicle front side is inserted into the third opening from the vehicle rear side and engages with the peripheral edge of the third opening. Thereby, the position of the upper end of the lower trim can be reliably fixed in the vehicle front-rear direction with respect to the lower end of the upper trim. (Claim 1)

In the present invention,
An upper flange projects from the upper end of the lower trim to the back side,
When the first receiving portion for receiving the lower end portion of the upper trim in the vehicle front-rear direction and preventing the movement of the lower end portion of the upper trim in the vehicle front-rear direction is formed at the peripheral portion of the upper flange, Can be played. (Claim 2)

  The 1st receiving part formed in the peripheral part of the upper flange of a lower trim receives the lower end part of an upper trim in a vehicle front-back direction, and blocks the movement of the lower end part of an upper trim in the vehicle front-back direction. As a result, the upper end of the lower trim can be more securely fixed in the vehicle front-rear direction with respect to the lower end of the upper trim, and the appearance quality of the joint portion between the lower end of the upper trim and the upper end of the lower trim is further improved. Can be made. (Claim 2)

In the present invention,
The second engagement pawls, together are protruded toward the upper side on the upper surface of the upper flange of the second side wall, is inserted from the vehicle width direction inside the first opening, the periphery of the first opening When engaged, the following effects can be achieved. (Claim 3)

  The second engaging claw can be easily engaged with the peripheral edge portion of the first opening by simply overlapping the upper end portion of the lower trim with respect to the lower end portion of the upper trim from the vehicle width direction inner side (vehicle interior side). . Thereby, the workability | operativity of the assembly | attachment operation | work with respect to the lower end part of the upper trim of the upper end part of a lower trim can be improved. (Claim 3)

In the present invention,
The upper flange of the second side wall includes an insertion portion that is inserted into the first opening of the first side wall,
When the clamping part which clamps the said insertion part in an up-down direction in cooperation with the upper peripheral part of the said 1st opening is provided in the level | step-difference part of the said 1st side wall, there can exist the following effect | action. (Claim 4)

  A sandwiching portion provided at the step portion of the first side wall sandwiches the insertion portion in the vertical direction in cooperation with the upper peripheral edge of the first opening. Therefore, the upper end of the lower trim can be fixed in the vertical direction (the vehicle vertical direction) with respect to the lower end of the upper trim, and the appearance quality of the joint portion between the lower end of the upper trim and the upper end of the lower trim is further improved. Can be made. (Claim 4)

In the present invention,
The first opening of the first side wall is formed in a pair of front and rear on the stepped surface part facing the vehicle width direction of the stepped part of the first side wall with the vehicle longitudinal direction central part of the lower end part of the first side wall interposed therebetween,
The insertion portion is provided on the upper flange of the second side wall with a pair of front and rear sandwiching the vehicle front-rear direction center portion of the upper flange of the second side wall,
The second engaging claw is provided at the center of the insertion portion in the vehicle longitudinal direction;
A pair of front and rear second engaging claws are inserted into the pair of front and rear first openings, respectively,
The sandwiching portion is provided on the step portion of the first side wall in a pair of front and rear for each first opening,
When the pair of front and rear clamping parts clamp the insertion parts on both sides of the second engagement claw in cooperation with the upper peripheral edge of the first opening, the following effects can be obtained. (Claim 5)

A pair of front and rear second engaging claws provided at the upper end of the second side wall of the lower trim are respectively inserted into the pair of front and rear first openings formed at the lower end of the first side wall of the lower end of the upper trim. , Engage with the peripheral edge of the first opening. As a result, the upper end of the lower trim can be more securely fixed in the vehicle width direction with respect to the lower end of the upper trim.
Further, the pair of front and rear clamping parts cooperate with the upper peripheral edge of the first opening to clamp the insertion parts on both sides of the second engagement claw in the vertical direction. Therefore, the position of the upper end of the lower trim can be more reliably fixed in the vertical direction (vehicle vertical direction) with respect to the lower end of the upper trim. As a result, the appearance quality of the mating portion between the lower end portion of the upper trim and the upper end portion of the lower trim can be further improved. (Claim 5)

In the present invention,
The clamping portion protrudes into the first opening from the lower peripheral edge of the first opening,
A first guide surface for guiding the insertion portion into the first opening is provided at an upper end portion of the clamping portion,
When the first guide surface is inclined so as to be located on the back side of the first side wall, the following action can be achieved. (Claim 6)

  The first guide surface of the upper end portion of the sandwiching portion that is inclined so as to be located on the back side of the first side wall as the upper side guides the insertion portion into the first opening. Accordingly, the insertion portion can be easily inserted into the first opening, and the workability of assembling the upper end portion of the lower trim with respect to the lower end portion of the upper trim can be improved. (Claim 6)

In the present invention,
The pair of front and rear insertion portions protrudes to the back side of the second side wall longer than the center portion of the upper side flange of the second side wall, and the center portion of the upper side flange of the second side wall extends in the vehicle front and rear direction. It is formed in a concave shape that is recessed on the design surface side of the second side wall,
The front end portion of the upper flange of the second front wall on the vehicle rear side, the vehicle rear side end portion of the insertion portion on the vehicle front side, and the vehicle front side end portion of the insertion portion on the vehicle rear side are If comprised in the 1st receiving part, the following operation can be produced. (Claim 7)

The front end portion of the upper flange of the second front wall on the vehicle rear side receives the lower end portion of the first front wall from the vehicle front side to prevent movement toward the vehicle front side. Further, the end portion on the vehicle rear side of the insertion portion on the vehicle front side receives the vehicle front-rear direction center portion of the first side wall from the vehicle front side to prevent movement toward the vehicle front side. And the vehicle front side end of the insertion part on the vehicle rear side receives the vehicle front-rear direction center portion of the first side wall from the vehicle rear side to prevent movement toward the vehicle rear side.
According to the above configuration, since the insertion portion is also used as the first receiving portion, the structure can be simplified, and the cost for forming the first receiving portion can be reduced. it can. (Claim 7)

In the present invention,
When the second step receiving portion for receiving the back surface of the upper end portion of the second side wall is connected to the stepped surface portion below the pair of front and rear first openings, the following operation can be achieved. (Claim 8)

  The back surface of the upper end portion of the second side wall can be received by the second receiving portion to prevent the second side wall from moving outward in the vehicle width direction. Thereby, the position of the upper end of the lower trim can be reliably fixed in the vehicle width direction with respect to the lower end of the upper trim. (Claim 8)

In the present invention,
A front corner portion between the lower end portion of the first front wall and the lower end portion of the first side wall, and a rear corner portion between the lower end portion of the first rear wall and the lower end portion of the first side wall are in cross section. Formed in an arc shape,
As the upper end portion of the lower trim is overlapped with the lower end portion of the upper trim from the inside in the vehicle width direction, the first engagement claw is at the front corner portion, and the third engagement claw is at the rear corner portion. And the upper end of the second front wall and the upper end of the second rear wall are elastically restored after being opened and deformed in a direction away from each other, and the upper end of the lower trim is the lower end of the upper trim. Configured to overlap
A second guide surface that is guided by the front corner portion is formed at an outer end portion of the first engagement claw in the vehicle width direction,
The second guide surface is inclined so that the vehicle rear side is located on the inner side in the vehicle width direction,
A third guide surface that is guided by the rear corner portion is formed at an outer end portion of the third engagement claw in the vehicle width direction,
When the third guide surface is inclined so as to be located on the inner side in the vehicle width direction toward the front side of the vehicle, the following effect can be obtained. (Claim 9 )

As the upper end of the lower trim is superimposed on the lower end of the upper trim from the inside in the vehicle width direction, the first engagement claw is pressed against the front corner and the third engagement claw is pressed against the rear corner. Is done. Then, the upper end of the second front wall and the upper end of the second rear wall open and deform in a direction away from each other, and then elastically recover, so that the upper end of the lower trim overlaps the lower end of the upper trim.
In this case, the second guide surface formed at the outer end in the vehicle width direction of the first engagement claw is guided by the front corner portion. Further, a third guide surface formed at the outer end in the vehicle width direction of the third engagement claw is guided by the rear corner portion.
The second guide surface is inclined so as to be located inward in the vehicle width direction toward the vehicle rear side, and the third guide surface is inclined so as to be located inward in the vehicle width direction toward the vehicle front side. The two guide surfaces can be smoothly guided at the front corner portion, and the third guide surface can be smoothly guided at the rear corner portion.
Thereby, the workability | operativity of the assembly | attachment operation | work with respect to the lower end part of the upper trim of the upper end part of a lower trim can be improved. (Claim 9 )

In the present invention,
A fourth guide surface that is guided by a stepped surface portion facing the up-down direction of the stepped portion of the first rear wall is formed at the outer end of the third engaging claw in the vehicle width direction,
When the fourth guide surface is inclined so as to be located on the inner side in the vehicle width direction, the following action can be achieved. (Claim 10 )

A fourth guide surface formed at the outer end of the third engagement claw in the vehicle width direction is guided by the lower surface of the step surface portion that faces the vertical direction of the step portion of the first rear wall. Since the fourth guide surface is inclined so as to be located on the inner side in the vehicle width direction, the fourth guide surface can be smoothly guided by the lower surface of the step surface portion. Thereby, the workability | operativity of the assembly | attachment operation | work with respect to the lower end part of the upper trim of the upper end part of a lower trim can be improved. (Claim 10 )

In the present invention,
The claw portion of the third engagement claw protrudes upward from the claw base portion of the third engagement claw and engages with the upper peripheral edge portion of the third opening,
When the abutting portion that abuts on the lower peripheral edge of the third opening is provided at the upper end of the second rear wall, the following effects can be achieved. (Claim 11 )

When the third engaging claw is engaged with the third engaged portion by the contact portion provided at the upper end portion of the second rear wall contacting the lower peripheral edge portion of the third opening, It is possible to avoid the third engaging claw escaping downward from the third engaged portion. (Claim 11 )

In the present invention,
The abutment portion extends downward from a first lateral rib projecting from the second rear wall below the third engagement claw to the vehicle front side, and an end of the first lateral rib in the vehicle width direction. A first longitudinal rib,
A rib receiver protrudes from the lower peripheral edge of the third opening to the vehicle rear side,
When the lower end of the first vertical rib abuts on the rib receiver from above, the following action can be achieved. (Claim 12 )

A lower end portion of the first vertical rib abuts from above on a rib receiver that protrudes rearward from the lower peripheral edge of the third opening. Since the contact portion is formed in an L-shaped cross section when viewed from the front-rear direction of the seat, the strength of the contact portion can be improved. (Claim 12 )

In the present invention,
The claw base portion of the first engagement claw includes a second horizontal rib protruding from the second front wall to the vehicle rear side, and a second vertical rib extending downward from an end portion of the second horizontal rib in the vehicle width direction. And
The claw portion of the first engagement claw projects from the end of the second vertical rib on the vehicle rear side inward in the vehicle width direction, and engages with the peripheral edge portion of the second opening in the vehicle width direction,
When the lower end of the second vertical rib contacts the lower peripheral edge of the second opening, the following action can be achieved. (Claim 13 )

Since the nail | claw base part of a 1st engagement nail | claw is formed in cross-sectional L shape seeing from the sheet | seat front-back direction, the intensity | strength of a 1st engagement nail | claw can be improved. When the lower end of the second vertical rib is in contact with the lower peripheral edge of the second opening, the first engaging claw is engaged when the first engaging claw is engaged with the first engaged portion. Can be avoided from escaping downward from the first engaged portion.
Further, for example, the protruding direction from the claw base portion of the first engaging claw and the protruding direction from the claw base portion of the third engaging claw are the same (the protruding direction of both claw portions is any As compared with the structure in the upper side of the vehicle or the structure on the inner side in the vehicle width direction), the direction in which the upper end of the lower trim is prevented from being separated from the lower end of the upper trim can be increased. (Claim 13 )

According to the present invention,
It was possible to provide a vehicle pillar interior structure capable of preventing a gap from being generated between the lower end portion of the upper trim and the upper end portion of the lower trim and improving the appearance quality.

View of the center pillar as seen from inside the vehicle AA sectional view of FIG. (A) is a perspective view of the upper end portion of the lower trim, (b) is a view as viewed from the arrow Z in FIG. 3 (a), and (c) is a view as viewed from the arrow Y in FIG. 3 (a). FIG. 3A is a perspective view of the first engagement claw, as viewed from the arrow X in FIG. It is a W arrow view of Drawing 3 (a), and is a perspective view of the 3rd engagement claw. Perspective view of the lower end of the upper trim (A) is a view from the arrow V in FIG. 6, (b) is a view from the arrow U in FIG. (A) is a T arrow view of FIG. 7 (a), (b) is an S arrow view of FIG. 7 (b). FIG. 9A is a perspective view of the interior structure of the pillar of the vehicle as viewed from the back side (outside of the passenger compartment). FIG. 9B is a perspective view of FIG. 9A, and FIG. 9C is a perspective view of FIG. Figure 2A is a sectional view taken along line BB in FIG. 2, FIG. 2B is a sectional view taken along line CC in FIG. 2, FIG. 2C is a sectional view taken along line A2-A2 in FIG. Figure (A) is EE sectional drawing of Fig.7 (a), (b) is FF sectional drawing of FIG.7 (b). Sectional drawing which shows the method of attaching a lower trim to an upper trim (figure corresponding to the AA cross section of FIG. 1) (A) is a perspective view showing a method for forming the third engagement claw, (b) is a perspective view showing a method for forming the first engagement claw, and (c) is a plan view showing a method for forming the third engagement claw.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, a center pillar 1 is provided on the side of a vehicle body between an opening K1 of a front door and an opening K2 of a rear door. The center pillar 1 includes a metal center pillar panel 4 (corresponding to a pillar panel) and a center pillar trim 1 as an interior member that covers the center pillar panel 4 from the vehicle interior side.

[Structure of center pillar panel 4]
The center pillar panel 4 includes a center pillar outer panel 5, a center pillar reinforcement 6, and a center pillar inner panel 7. The center pillar inner panel 7 is formed in a cross-sectional hat shape in which the vehicle width direction outer side W2 (vehicle compartment outer side) is opened, and the center pillar outer panel 5 and the center pillar reinforcement 6 are arranged in the vehicle width direction inner side W1 (vehicle interior side). It is formed in an open cross-sectional hat shape.

  The front flanges 5F, 6F, 7F and the rear flanges 5R, 6R, 7R of the center pillar outer panel 5, the center pillar reinforcement 6, and the center pillar inner panel 7 are welded together. A mounting base portion 8K of the opening trim 8 is fitted on the front flanges 5F, 6F, and 7F and the rear flanges 5R, 6R, and 7R that are welded to each other. The opening trim 8 includes the mounting base portion 8K and a hollow seal portion 8S that bulges from the mounting base portion 8K and is compressed by the door, and is formed of a rubber-like elastic body.

[Structure of center pillar trim 1]
Each of the center pillar trims 1 is divided into an upper trim 2 and a lower trim 3 made of resin, and the center pillar panel 4 is covered with the upper trim 2 and the lower trim 3. The upper end of the lower trim 3 is overlapped with the lower end of the upper trim 2 from the vehicle interior side. Thereby, it can prevent that the center pillar panel 4 is exposed to a vehicle interior.

  As shown in FIGS. 1, 2, and 6, the upper trim 2 includes a first side wall 12 whose design surface faces the inner side W <b> 1 in the vehicle width direction, and a vehicle width from a vehicle front side Fr side of the first side wall 12. A first front wall 11 extending in the direction outer side W2 and a first rear wall 13 extending from the side portion of the first side wall 12 on the vehicle rear side Rr to the vehicle width direction outer side W2 are provided.

  A vehicle front-rear direction center portion 12L (width direction center portion of the lower end portion of the first side wall 12) at the lower end portion of the first side wall 12 is recessed on the back side (vehicle width direction outer side W2). A webbing insertion hole through which the webbing J (see FIG. 2) of the seat belt device is inserted is formed between the vehicle longitudinal direction center portion 12L and the upper end portion of the lower trim 3.

  As shown in FIGS. 1 to 3, the lower trim 3 extends from the side of the second side wall 22 of the vehicle front side Fr of the second side wall 22 to the vehicle width direction outer side W <b> 2. A second front wall 21 and a second rear wall 23 extending from the side of the second side wall 22 on the vehicle rear side Rr to the vehicle width direction outer side W2 are provided.

A first engagement claw 41 is provided at the upper end of the second front wall 21, and a first engaged portion (described later) is engaged with the lower end of the first front wall 11. A peripheral edge 33H1) of the second opening 33H on the inner side W1 in the vehicle width direction is provided.
Further, a second engagement claw 42 is provided at the upper end portion of the second side wall 22, and a second engaged portion (first described later) is engaged with the lower end portion of the first side wall 12. An upper peripheral edge 35H1) of the opening 35H is provided.
Further, a third engagement claw 43 is provided at the upper end portion of the second rear wall 23, and a third engaged portion (described later) is engaged with the lower end portion of the first rear wall 13. An upper peripheral edge 38H1) of the third opening 38H is provided.

[Structure of upper trim 2]
As shown in FIGS. 8 (a) and 8 (b), a stepped portion 34 that enters the back side (the vehicle width direction outer side W2) of the first side wall 12 at the lower end portion of the first side wall 12 is the center in the vehicle longitudinal direction. A pair of front and rear is formed across the portion 12L (see FIG. 6).

  Then, the width direction of the first side wall 12 (front and rear of the vehicle) extends over the step surface portion 35 facing the vehicle width direction of the step portion 34 of the first side wall 12 and the portion of the step surface portion 36 facing the vertical direction on the outer side W2 in the vehicle width direction. A first rectangular opening 35H that is long in the direction) is formed.

  Further, as shown in FIGS. 6, 7, and 10B, a second receiving portion 89 for receiving the back surface 22U of the upper end portion of the second side wall 22 is connected to the stepped surface portion 35A below the first opening 35H. It is installed. That is, the lower end portion of the first side wall 12 located below the stepped surface portion 35A is formed in the bulging portion 16 that bulges in the vehicle width direction inner side W1, and protrudes at both ends of the bulging portion 16 in the vehicle front-rear direction. Part-shaped second receiving portions 89 are provided so as to protrude.

  The step portion 34 of the first side wall 12 is provided with a holding portion 37 that holds an insertion portion 25 of the lower trim 3 described later in the vertical direction in cooperation with the upper peripheral edge portion 35H1 of the first opening 35H. The sandwiching portion 37 is provided in the stepped portion 34 of the first side wall 12 as a pair of longitudinal ribs for each first opening 35H. The pair of front and rear sandwiching portions 37 rises upward from a flange 14 described later, and protrudes into the first opening 35H from both longitudinal ends of the lower peripheral edge portion 35H1 of the first opening 35H.

  A first guide surface 37G for guiding the insertion portion 25 into the first opening 35H is provided at the upper end portion of the sandwiching portion 37. The first guide surface 37G is inclined so as to be positioned on the back side of the first side wall 12 toward the upper side.

  As shown in FIG. 8A, a stepped portion 32 that enters the back side of the first front wall 11 is formed at the lower end portion of the first front wall 11 continuously from the stepped portion 34 of the first side wall 12. Yes. And the 2nd opening 33H is formed in the level | step difference surface part 33 which faces the vehicle front-back direction of the level | step-difference part 32 of the 1st front wall 11. As shown in FIG. The second opening 33H is formed in a cutout shape with the vehicle width direction outer side W2 opened. Reference numeral 31 denotes a stepped surface portion of the stepped portion 32 of the first front wall 11 that faces in the vehicle vertical direction.

  Further, as shown in FIG. 8B, a stepped portion 67 that enters the back side of the first rear wall 13 is formed at the lower end portion of the first rear wall 13 continuously from the stepped portion 34 of the first side wall 12. Has been. And the 3rd opening 38H is formed in the level | step difference surface part 38 which faces the vehicle front-back direction of the level | step-difference part 67 of the 1st rear wall 13. As shown in FIG. The third opening 38H is formed in a cutout shape with the vehicle width direction outer side W2 opened. Further, the rib receiver 15 protrudes from the lower peripheral edge 38H2 of the third opening 38H to the vehicle rear side Rr.

  As shown in FIGS. 8 (a) and 8 (b), a lower end portion of the bulging portion 16, a lower end portion of the step surface portion 33 facing the vehicle front-rear direction of the step portion 32 of the first front wall 11, and The flange 14 projects continuously from the lower end portion of the step surface portion 38 facing the vehicle longitudinal direction of the step portion 67 of the rear wall 13 to the back side.

As shown in FIGS. 2, 7 (a), 7 (b), 8 (a), and 8 (b), the lower end of the first front wall 11 and the lower end of the first side wall 12 are A front corner C1 between the stepped surface 33 of the first front wall 11 facing the vehicle front-rear direction and the stepped corner 35 of the first side wall 12 facing the vehicle width direction has an arcuate cross section. Is formed.
Further, the rear corner portion C2 between the lower end portion of the first rear wall 13 and the lower end portion of the first side wall 12, that is, the step surface portion 38 of the first rear wall 13 facing the vehicle front-rear direction and the first side wall 12 The rear corner portion C2 between the step surface portion 35 facing in the vehicle width direction is formed in an arc shape in cross section.

When the upper end portion of the lower trim 3 is assembled to the lower end portion of the upper trim 2, the upper end portion of the lower trim 3 is overlapped with the lower end portion of the upper trim 2 from the inner side W1 in the vehicle width direction, as shown in FIGS. The 12 indicates the assembly direction of the upper end portion of the lower trim 3 with respect to the lower end portion of the upper trim 2, and the reference symbols in FIGS. 10 (c), 10 (d), 11 (a), and 11 (b). K also indicates the assembly direction of the lower trim 3 with respect to the lower end portion of the upper trim 2.
Accordingly, the first engaging claw 41 is pressed against the front corner portion C1, and the third engaging claw 43 is pressed against the rear corner portion C2. Then, the upper end of the second front wall 21 and the upper end of the second rear wall 23 open and deform in a direction away from each other, and then elastically recover, so that the upper end of the lower trim 3 overlaps the lower end of the upper trim 2.

  As shown in FIGS. 1 and 6, a trapezoidal connecting piece 12K extends downward from the lower end of the first side wall 12, and an engaging claw 12T for connecting to the vehicle body is provided at the center of the connecting piece 12K. Is provided. The engaging claw 12T for connection is engaged with the engaged portion of the center pillar inner panel 7. As a result, the lower end portion of the upper trim 2 is connected to the center pillar inner panel 7.

[Structure of lower trim 3]
As shown in FIG. 3A, an upper flange 3F projects from the upper end of the lower trim 3 to the back side. The upper flange 3F includes an upper flange 21F of the second front wall 21 projecting from the upper end portion of the second front wall 21 to the vehicle rear side Rr, and a second projecting portion W2 projecting from the upper end portion of the second side wall 22 to the vehicle width direction outer side W2. The upper side flange 22F of the second side wall 22 and the upper side flange 23F of the second rear wall 23 projecting from the upper end of the second rear wall 23 to the vehicle front side Fr. The upper flange 21F of the second front wall 21, the upper flange 22F of the second side wall 22, and the upper flange 23F of the second rear wall 23 are continuous.

  As shown in FIGS. 3A to 3C, the upper flange 22 </ b> F of the second side wall 22 includes an insertion portion 25 that is inserted into the first opening 35 </ b> H of the first side wall 12. A pair of front and rear insertion portions 25 are provided on the upper flange 22F of the second side wall 22 with the vehicle front-rear direction center portion 22F1 of the upper flange 22F interposed therebetween.

  The pair of front and rear insertion portions 25 extend longer than the vehicle front-rear direction center portion 22F1 of the upper flange 22F of the second side wall 22 to the back side of the second side wall 22, and the center of the upper flange 22F of the second side wall 22 in the vehicle front-rear direction center. The portion 22F1 is formed in a concave shape that is recessed toward the design surface side of the second side wall 22.

  And the 1st receiving part 24 which receives the lower end part of the said upper trim 2 in a vehicle front-back direction and blocks | prevents the movement of the lower end part of the upper trim 2 in the vehicle front-back direction is formed in the peripheral part of the upper flange 3F of the lower trim 3. ing. As shown in FIGS. 3 (b) and 3 (c), the first receiving portion 24 includes a front end portion 24A on the vehicle rear side Rr of the upper flange 21F of the second front wall 21 and an insertion portion on the vehicle front side Fr. 25 includes an end portion 24B on the vehicle rear side Rr, and an end portion 24C on the vehicle front side Fr of the insertion portion 25 on the vehicle rear side Rr.

[Structure of second engaging claw 42]
As shown in FIGS. 3 (a) to 3 (c), FIGS. 9 (a) to 9 (c), and FIG. 10 (a), the second engaging claw 42 is formed on the upper flange of the second side wall 22. The upper surface of 22F protrudes upward in a triangular shape in the longitudinal section. More specifically, the second engagement claw 42 is provided at the center of the insertion portion 25 in the vehicle front-rear direction, and is formed long in the width direction of the second side wall 22 (vehicle front-rear direction). Then, a pair of front and rear second engaging claws 42 are inserted into the pair of front and rear first openings 35H separately from the vehicle width direction inner side W1 and engage with the upper peripheral edge 35H1 of the first opening 35H.

  The pair of front and rear clamping portions 37 provided at the lower end portion of the upper trim 2 cooperates with the upper peripheral edge portion 35H1 of the first opening 35H to clamp the insertion portions 25 on both sides of the second engagement claw 42.

[Structure of the first engaging claw 41]
As shown in FIGS. 3, 4, and 10 (c), the first engagement claw 41 is provided at the upper end of the end of the second front wall 21 on the outer side W <b> 2 in the vehicle width direction. The claw base 77 of the first engagement claw 41 includes a second lateral rib 63 protruding from the upper end of the second front wall 21 toward the vehicle rear side Rr, and an end of the second lateral rib 63 on the inner side W1 in the vehicle width direction. And a second vertical rib 61 extending downward. A side portion of the second vertical rib 61 on the vehicle front side Fr is continuous with the back surface of the second front wall 21.

  As shown in FIGS. 4, 8 </ b> A, 9 </ b> A, and 9 </ b> C, the claw portion 62 of the first engagement claw 41 extends from the end of the second vertical rib 61 on the vehicle rear side Rr. It protrudes in the vehicle width direction inner side W1, and engages with the peripheral edge portion 33H1 of the second opening 33H on the vehicle width direction inner side W1. And the lower end part 61K of the 2nd vertical rib 61 contact | abuts to the lower side peripheral part 33H2 of the 2nd opening 33H.

  Further, when the upper end portion of the lower trim 3 is assembled to the lower end portion of the upper trim 2, the second guide surface 63G (see FIG. 4) guided by the front corner portion C1 of the lower end portion of the upper trim 2 is the first engagement. The second claw 41 is formed at the end of the second lateral rib 63 on the outer side W2 in the vehicle width direction. The second guide surface 63G is inclined so that the vehicle rear side Rr is located on the inner side W1 in the vehicle width direction.

  Further, as shown in FIG. 4 and FIG. 9C, a guide surface 61G (hereinafter referred to as “eighth guide surface 61G”) guided by the lower peripheral edge portion 33H2 of the second opening 33H is The two vertical ribs 61 are formed at the end of the vehicle rear side Rr. The eighth guide surface 61G is inclined so that the lower side is located on the vehicle front side Fr.

[Structure of third engagement claw 43]
As shown in FIGS. 3A, 3C, 5 and 10D, the third engaging claw 43 is the upper end of the end of the second rear wall 23 on the outer side W2 in the vehicle width direction. Is provided. The claw base portion 45 of the third engagement claw 43 is formed in a trapezoidal lateral rib shape, and protrudes from the upper end portion of the second rear wall 23 to the vehicle front side Fr. As shown in FIG. 8B, FIG. 9A, and FIG. 9B, the claw portion 46 of the third engagement claw 43 protrudes upward from the tip portion of the claw base portion 45. The claw portion 46 engages with the upper peripheral edge 38H1 of the third opening 38H.

  When the upper end portion of the lower trim 3 is assembled to the lower end portion of the upper trim 2, the third guide surface 45G (see FIG. 5) guided by the rear corner portion C2 of the lower end portion of the upper trim 2 is the third engagement. It is formed at the end of the claw base 45 of the joint claw 43 on the outer side W2 in the vehicle width direction. The third guide surface 45G is inclined so that the vehicle front side Fr is located on the inner side W1 in the vehicle width direction.

  Further, a stepped surface portion 39 facing the vertical direction of the first rear wall 13 at the end of the claw portion 46 of the third engagement claw 43 in the vehicle width direction (see FIG. 8B and FIG. 11B). A fourth guide surface 46G1 is formed to be guided by the lower surface. The fourth guide surface 46G1 is inclined such that the upper side is located on the inner side W1 in the vehicle width direction.

  Further, a guide is provided at the end of the claw portion 46 of the third engagement claw 43 on the vehicle front side Fr and guided by the lower surface of the step surface portion 39 (see FIG. 8B) facing the vertical direction of the first rear wall 13. A five guide surface 46G2 is formed. The fifth guide surface 46G2 is inclined so that the upper side is positioned on the vehicle rear side Rr. Accordingly, the claw portion 46 of the third engagement claw 43 is formed in a truncated pyramid shape.

[Structure of the contact portion 47]
As shown in FIGS. 5, 8 </ b> B, and 9 </ b> B, the contact portion 47 that contacts the lower peripheral portion 38 </ b> H <b> 2 of the third opening 38 </ b> H is a second lower portion of the third engagement claw 43. It is provided at the upper end of the rear wall 23. The contact portion 47 includes a trapezoidal first lateral rib 48 projecting from the second rear wall 23 below the third engagement claw 43 toward the vehicle front side Fr, and an inner side W1 of the first lateral rib 48 in the vehicle width direction. First longitudinal ribs 49 extending downward from the ends of the first longitudinal ribs 49. The end of the first vertical rib 49 on the vehicle rear side Rr is continuous with the back surface of the second rear wall 23.

  The first lateral rib 48 faces the claw base portion 45 of the third engagement claw 43 in parallel from below. The lower end portion 49K of the first vertical rib 49 comes into contact with the rib receiver 15 of the upper trim 2 from above (see FIGS. 9B and 10D).

  When the upper end portion of the lower trim 3 is assembled to the lower end portion of the upper trim 2, the sixth guide surface 48 </ b> G guided by the rear corner portion C <b> 2 of the lower end portion of the upper trim 2 is the first guide surface 48 </ b> G of the contact portion 47. The lateral rib 48 is formed at the end of the vehicle width direction outer side W2. The sixth guide surface 48G is inclined such that the vehicle front side Fr is located on the inner side W1 in the vehicle width direction. The sixth guide surface 48G and the third guide surface 45G overlap each other when viewed from the up-down direction.

  Further, a seventh guide surface 49G guided by the upper surface of the rib receiver 15 is formed at an end portion of the first vertical rib 49 of the contact portion 47 on the vehicle front side Fr. The seventh guide surface 49G is inclined so that the lower side is located on the vehicle rear side Rr.

[Method of Forming Third Engaging Claw 43 and First Engaging Claw 41]
As shown in FIGS. 13A and 13C, when the third engagement claw 43 is formed, the third engagement claw 43 is disposed between the second side wall 22, the second rear wall 23, and the third engagement claw 43. The first slide mold 100 that has been prepared is punched out to the vehicle front side Fr to form the third engagement claw 43. Reference sign Z1 is the direction of removing the first slide mold 100 (vehicle front side Fr). The die release direction Z2 of the core mold is the vehicle width direction outer side W2.

  The design surface 23M of the second rear wall 23 is slightly bent convexly toward the vehicle rear side Rr. Therefore, the parting line is located at the bending point P of the design surface 23M. The core mold 102 that forms the lower trim portion on the outer side W2 in the vehicle width direction from the bending point P is die-cut on the outer side W2 in the vehicle width direction.

  As shown in FIG. 13B, when the first engaging claw 41 is formed, the second engagement wall 41 is disposed between the second side wall 22, the second front wall 21, and the first engaging claw 41. The first engaging claw 41 is formed by punching the slide mold 101 downward (vehicle lower side).

With the above configuration,
(1) By engaging the first engaging claw 41 and the first engaged portion (the peripheral portion 33H1 on the inner side W1 of the second opening 33H in the vehicle width direction), the first front wall 11 of the upper trim 2 and The second front wall 21 of the lower trim 3 can be fixed in the vehicle front-rear direction.
Further, the first rear wall 13 of the upper trim 2 and the second rear of the lower trim 3 are engaged by engaging the third engaging claw 43 and the third engaged portion (the upper peripheral edge 38H1 of the third opening 38H). The wall 23 can be fixed in the vehicle front-rear direction.
Furthermore, the first side wall 12 of the upper trim 2 and the second side wall 22 of the lower trim 3 are engaged by engaging the second engaging claw 42 and the second engaged portion (the upper peripheral edge 35H1 of the first opening 35H). Can be fixed in the vehicle width direction.
That is, the upper end of the lower trim 3 can be engaged and fixed in the vehicle longitudinal direction and the vehicle width direction with respect to the lower end of the upper trim 2. As a result, it is possible to prevent a gap from being generated between the lower end portion of the upper trim 2 and the upper end portion of the lower trim 3, and improve the appearance quality of the joint portion between the lower end portion of the upper trim 2 and the upper end portion of the lower trim 3. Can be made.

(2) The first receiving portion 24 formed on the peripheral edge of the upper flange 3F of the lower trim 3 receives the lower end portion of the upper trim 2 in the vehicle front-rear direction, and moves the lower end portion of the upper trim 2 in the vehicle front-rear direction. Stop. As a result, the upper end of the lower trim 3 can be more securely positioned in the vehicle front-rear direction with respect to the lower end of the upper trim 2, and the appearance of the joint portion between the lower end of the upper trim 2 and the upper end of the lower trim 3 can be secured. The quality can be further improved.

(3) The second engaging claw 42 is simply connected to the upper peripheral edge of the first opening 35H by overlapping the upper end of the lower trim 3 with the lower end of the upper trim 2 from the vehicle width direction inner side W1 (vehicle interior side). It can be easily engaged with 35H1. Thereby, the workability | operativity of the assembly | attachment operation | work with respect to the lower end part of the upper trim 2 of the upper end part of the lower trim 3 can be improved.

(4) Since the clamping part 37 cooperates with the upper peripheral edge part 35H1 of the first opening 35H to clamp the insertion part 25 in the vertical direction, the upper end part of the lower trim 3 is placed on the vehicle with respect to the lower end part of the upper trim 2. The position can be fixed in the vertical direction.

(5) A pair of front and rear second engaging claws 42 provided at the upper end of the second side wall 22 of the lower trim 3 are formed at the lower end of the first side wall 12 at the lower end of the upper trim 2. Each is inserted into one opening 35H and engaged with the upper peripheral edge 35H1 of the first opening 35H. Thereby, the position of the upper end of the lower trim 3 can be more reliably fixed in the vehicle width direction with respect to the lower end of the upper trim 2.
Further, the pair of front and rear clamping portions 37 cooperate with the upper peripheral edge 35H1 of the first opening 35H to clamp the insertion portions 25 on both sides of the second engagement claw 42 in the vertical direction. Therefore, the upper end of the lower trim 3 can be more securely fixed in the vertical direction (vehicle vertical direction) with respect to the lower end of the upper trim 2.

(6) The first guide surface 37G at the upper end portion of the holding portion 37 that is inclined so as to be located on the back side of the first side wall 12 as the upper side guides the insertion portion 25 into the first opening 35H. As a result, the insertion portion 25 can be easily inserted into the first opening 35H, and the workability of assembling the upper end portion of the lower trim 3 with respect to the lower end portion of the upper trim 2 can be improved.

(7) The front end portion 24A on the vehicle rear side Rr of the upper flange 21F of the second front wall 21 receives the lower end portion of the first front wall 11 from the vehicle front side Fr and prevents the movement to the vehicle front side Fr. . Further, the end 24B on the vehicle rear side Rr of the insertion portion 25 on the vehicle front side Fr receives the vehicle front-rear direction center portion of the first side wall 12 from the vehicle front side Fr and prevents movement to the vehicle front side Fr. . Then, the end portion 24C on the vehicle front side Fr of the insertion portion 25 on the vehicle rear side Rr receives the vehicle front-rear direction center portion 12L of the first side wall 12 from the vehicle rear side Rr to prevent the movement to the vehicle rear side Rr. To do.
According to said structure, since the said insertion part 25 is comprised also as the said 1st receiving part 24, while being able to simplify a structure, the cost for forming the 1st receiving part 24 is reduced. can do.

(8) The back surface 22U of the upper end portion of the second side wall 22 is received by the second receiving portion 89, and the movement of the second side wall 22 to the outer side W2 in the vehicle width direction can be prevented (FIG. 10B). reference). Thereby, the position of the upper end of the lower trim 3 can be reliably fixed in the vehicle width direction with respect to the lower end of the upper trim 2.

(9) The first engaging claw 41 protruding from the upper end portion of the second front wall 21 to the vehicle rear side Rr is inserted into the second opening 33H from the vehicle front side Fr, and the vehicle width inner side of the second opening 33H. Engage with the peripheral edge 33H1 of W1. A third engagement claw 43 that protrudes from the upper end of the second rear wall 23 toward the vehicle front side Fr is inserted into the third opening 38H from the vehicle rear side Rr and is formed at the upper peripheral edge 38H1 of the third opening 38H. Engage. Thereby, the position of the upper end of the lower trim 3 can be reliably fixed in the vehicle front-rear direction with respect to the lower end of the upper trim 2.

(10) As the upper end of the lower trim 3 is overlapped with the lower end of the upper trim 2 from the vehicle width direction inner side W1, the first engagement claw 41 is moved to the front corner C1, and the third engagement claw 43 is moved. It is pressed by the rear corner part C2. Then, the upper end portion of the second front wall 21 and the upper end portion of the second rear wall 23 are elastically restored after being opened and deformed in a direction away from each other, and the upper end portion of the lower trim 3 overlaps the lower end portion of the upper trim 2.
In this case, the second guide surface 63G formed at the end of the first engagement claw 41 on the outer side W2 in the vehicle width direction is guided by the front corner portion C1. Further, a third guide surface 45G formed at the end of the third engagement claw 43 on the outer side W2 in the vehicle width direction is guided by the rear corner portion C2.
The second guide surface 63G is inclined so that the vehicle rear side Rr is located on the inner side W1 in the vehicle width direction, and the third guide surface 45G is inclined so that the vehicle front side Fr is located on the inner side W1 in the vehicle width direction. Therefore, the second guide surface 63G can be smoothly guided by the front corner portion C1, and the third guide surface 45G can be smoothly guided by the rear corner portion C2.

(11) As shown in FIG. 11 (b), the fourth guide surface 46 G 1 formed at the end of the third engagement claw 43 on the outer side W 2 in the vehicle width direction is a step 67 of the first rear wall 13. It is guided by the lower surface of the step surface portion 39 that faces in the vertical direction. Since the fourth guide surface 46G1 is inclined so as to be located on the inner side W1 in the vehicle width direction as it goes upward, the fourth guide surface 46G1 can be smoothly guided by the lower surface of the stepped surface portion 39.
(11-2)
Further, the fifth guide surface 46G2 is guided by the lower surface of the step surface portion 39 (see FIG. 8B) facing the vertical direction of the first rear wall 13, and the sixth guide surface 48G is formed at the lower end portion of the upper trim 2. Guided by the rear corner C2, the seventh guide surface 49G is guided by the upper surface of the rib receiver 15, and the eighth guide surface 61G is guided by the lower peripheral edge 33H2 of the second opening 33H. The workability of the assembling work of the upper end portion of the lower trim 3 with respect to the lower end portion of the upper trim 2 can be improved.

(12) The contact portion 47 provided at the upper end portion of the second rear wall 13 is in contact with the lower peripheral edge portion 38H2 of the third opening 38H, so that the third engagement claw 43 is third engaged. When engaging with the portion (the upper peripheral edge 38H1 of the third opening 38H), the third engaging claw 43 can be prevented from escaping downward from the third engaged portion.

(13) The lower end portion 49K of the first vertical rib 49 comes into contact with the rib receiver 15 protruding from the lower peripheral edge 38H1 of the third opening 38H to the vehicle rear side Rr from above. Since the contact portion 47 is formed in an L-shaped cross section when viewed from the front-rear direction of the seat, the strength of the contact portion 47 can be improved.

(14) Since the claw base portion 77 of the first engagement claw 41 is formed in an L-shaped cross section when viewed from the front-rear direction of the seat, the strength of the first engagement claw 41 can be improved. When the lower end portion 61K of the second vertical rib 61 abuts on the lower peripheral edge portion 33H2 of the second opening 33H, the first engagement claw 41 is engaged with the first engaged portion. It can be avoided that the first engaging claw 41 escapes downward from the first engaged portion.
Further, for example, the protruding direction of the claw portion 62 of the first engaging claw 41 from the claw base portion 77 and the protruding direction of the claw portion 46 of the third engaging claw 43 from the claw base portion 45 are the same (both claws). Compared with the structure in which the projecting directions of the portions 62 and 46 are all upward, or the structure in which both the vehicle width direction inner side W1 are), the direction in which the upper end portion of the lower trim 3 is prevented from being separated from the lower end portion of the upper trim 2. Can be increased.

(15) As shown in FIG. 2, when the webbing J of the seat belt device is pulled out by the occupant, a force E is applied to the upper end portion of the lower trim 3 on the inner side W <b> 1 in the vehicle width direction (vehicle interior side). Then, the left and right side portions of the lower end portion of the lower trim 3 are pulled toward the left and right center side of the lower trim 3. According to the above configuration of the present invention, the engaging claw 12T (see FIG. 6) for connection provided at the lower end portion of the upper trim 2 is engaged with the engaged portion of the center pillar inner panel 7, The lower end portion of the upper trim 2 can be prevented from being detached from the center pillar inner panel 7.

[Another embodiment]
(1) The first engaging claw 41 may be provided at the lower end portion of the upper trim 2, and the first engaged portion may be provided at the upper end portion of the lower trim 3.
(2) The second engaging claw 42 may be provided at the lower end portion of the upper trim 2, and the second engaged portion may be provided at the upper end portion of the lower trim 3. The number of the second pawls 42 is not limited to the number described in the above embodiment. For example, a structure in which only one second claw 42 is provided at the upper end of the lower trim 3 or the lower end of the upper trim 2 may be employed.
(3) The third engagement claw 42 may be provided at the lower end portion of the upper trim 2, and the third engaged portion may be provided at the upper end portion of the lower trim 3.

2 Upper trim 3 Lower trim 3F Upper flange 4 Pillar panel 11 1st front wall 12 1st side wall 12L Center part 13 of vehicle front-back direction of the lower end part of 1st side wall 1st rear wall 15 Rib receptacle 21 2nd front wall 21F 2nd front Upper side flange 22 of the wall Second side wall 22F Upper side flange 22F1 of the second side wall Center 22U in the vehicle front-rear direction of the upper side flange of the second side wall 23 Back surface 23 of the upper end portion of the second side wall Second rear wall 24 First receiving part 24A Second Front end of the upper flange of the front wall on the vehicle rear side (first receiving part)
24B Vehicle rear side end portion (first receiving portion) of the vehicle front side insertion portion
24C The vehicle front side end portion (first receiving portion) of the vehicle rear side insertion portion
25 Insertion portion 32 Stepped portion 33 entering the back side of the first front wall Stepped surface portion 33H facing the vehicle front-rear direction of the stepped portion of the first front wall Second opening 33H1 Engagement part)
33H2 Lower peripheral edge 34 of second opening Stepped portion 35 entering back side of first side wall Stepped surface portion 35A facing stepwise of vehicle width direction of stepped portion of first side wall Stepped surface portion 35H below first opening First opening 35H1 First Upper peripheral edge of opening (second engaged portion)
35H2 Lower peripheral edge portion 37 of first opening 37 Gripping portion 37G First guide surface 38 Step surface portion 38H facing stepwise direction of first rear wall 38H Third opening 38H1 Upper peripheral portion of third opening (third engagement) Joint)
38H2 Lower peripheral edge 39 of the third opening 39 Stepped surface 41 facing the vertical direction of the stepped portion of the first rear wall First engaging claw 42 Second engaging claw 43 Third engaging claw 45 Claw of the third engaging claw Base 45G Third guide surface 46 Third engagement claw portion 46G1 Fourth guide surface 47 Abutting portion 48 First horizontal rib 49 First vertical rib 49K First vertical rib lower end portion 61 Second vertical rib 61K Second The lower end 62 of the vertical rib 62 The first engaging claw claw 63 The second horizontal rib 63G The second guide surface 67 The stepped portion 77 entering the back side of the first rear wall The first engaging claw claw base 89 The second receiving portion C1 Front corner portion C2 Rear corner portion Fr Vehicle front side Rr Vehicle rear side W1 Vehicle width direction inside W2 Vehicle width direction outside

Claims (13)

Pillar panels provided on the side of the car body are covered with upper and lower trims,
The upper end of the lower trim is overlapped with the lower end of the upper trim from the vehicle interior side,
The upper trim includes a first side wall whose design surface faces inward in the vehicle width direction, a first front wall extending outward in the vehicle width direction from a side portion of the first side wall on the vehicle front side, and a vehicle rear side of the first side wall. A first rear wall extending outward in the vehicle width direction from the side portion of the side,
The lower trim includes a second side wall with a design surface facing inward in the vehicle width direction, a second front wall extending outward in the vehicle width direction from a vehicle front side side of the second side wall, and a vehicle rear side of the second side wall. A pillar interior structure of a vehicle including a second rear wall extending outward in the vehicle width direction from a side portion of the vehicle,
A first engaging claw projects from the upper end of the second front wall to the vehicle rear side,
A stepped portion that enters the back side of the first front wall is formed at the lower end of the first front wall,
A second opening is formed in a step surface portion facing the vehicle front-rear direction of the step portion of the first front wall;
A first engaged portion that is engaged with the first engaging claw is provided on a peripheral portion of the second opening,
A second engagement claw is provided at the upper end of the second side wall;
A stepped portion that enters the back side of the first side wall is formed at the lower end of the first side wall,
A first opening is formed in the step surface portion facing the vehicle width direction of the step portion of the first side wall,
A second engaged portion with which the second engaging claw is engaged is provided at a peripheral edge portion of the first opening,
A third engagement claw projects from the upper end of the second rear wall to the vehicle front side,
A stepped portion that enters the back side of the first rear wall is formed at the lower end of the first rear wall,
A third opening is formed in the step surface portion facing the vehicle longitudinal direction of the step portion of the first rear wall,
A pillar interior structure of a vehicle , wherein a third engaged portion with which the third engaging claw is engaged is provided at a peripheral edge portion of the third opening . An upper flange projects from the upper end of the lower trim to the back side,
2. The first receiving portion for receiving the lower end portion of the upper trim in the vehicle front-rear direction and preventing movement of the lower end portion of the upper trim in the vehicle front-rear direction is formed at a peripheral portion of the upper flange. Vehicle pillar interior structure. The second engagement pawls, together are protruded toward the upper side on the upper surface of the upper flange of the second side wall, is inserted from the vehicle width direction inside the first opening, the periphery of the first opening The pillar interior structure of a vehicle according to claim 2, which is engaged. The upper flange of the second side wall includes an insertion portion that is inserted into the first opening of the first side wall,
The pillar interior structure of a vehicle according to claim 3, wherein a pinching portion that clamps the insertion portion in the vertical direction in cooperation with an upper peripheral edge portion of the first opening is provided at a step portion of the first side wall. The first opening of the first side wall is formed in a pair of front and rear on the stepped surface part facing the vehicle width direction of the stepped part of the first side wall with the vehicle longitudinal direction central part of the lower end part of the first side wall interposed therebetween,
The insertion portion is provided on the upper flange of the second side wall with a pair of front and rear sandwiching the vehicle front-rear direction center portion of the upper flange of the second side wall,
The second engaging claw is provided at the center of the insertion portion in the vehicle longitudinal direction;
A pair of front and rear second engaging claws are inserted into the pair of front and rear first openings, respectively,
The sandwiching portion is provided on the step portion of the first side wall in a pair of front and rear for each first opening,
5. The vehicle pillar interior structure according to claim 4, wherein the pair of front and rear clamping parts clamps the insertion parts on both sides of the second engagement claw in cooperation with the upper peripheral edge of the first opening. The clamping portion protrudes into the first opening from the lower peripheral edge of the first opening,
A first guide surface for guiding the insertion portion into the first opening is provided at an upper end portion of the clamping portion,
The pillar interior structure of a vehicle according to claim 5, wherein the first guide surface is inclined so as to be positioned on the back side of the first side wall toward the upper side. The pair of front and rear insertion portions protrudes to the back side of the second side wall longer than the center portion of the upper side flange of the second side wall, and the center portion of the upper side flange of the second side wall extends in the vehicle front and rear direction. It is formed in a concave shape that is recessed on the design surface side of the second side wall,
The front end portion of the upper flange of the second front wall on the vehicle rear side, the vehicle rear side end portion of the insertion portion on the vehicle front side, and the vehicle front side end portion of the insertion portion on the vehicle rear side are The pillar interior structure of a vehicle according to claim 5 or 6, wherein the pillar interior structure is configured in the first receiving portion.   The vehicle according to any one of claims 5 to 7, wherein a second receiving portion for receiving a back surface of an upper end portion of the second side wall is connected to a stepped surface portion below the pair of front and rear first openings. Pillar interior structure. A front corner portion between the lower end portion of the first front wall and the lower end portion of the first side wall, and a rear corner portion between the lower end portion of the first rear wall and the lower end portion of the first side wall are in cross section. Formed in an arc shape,
As the upper end portion of the lower trim is overlapped with the lower end portion of the upper trim from the inside in the vehicle width direction, the first engagement claw is at the front corner portion, and the third engagement claw is at the rear corner portion. And the upper end of the second front wall and the upper end of the second rear wall are elastically restored after being opened and deformed in a direction away from each other, and the upper end of the lower trim is the lower end of the upper trim. Configured to overlap
A second guide surface that is guided by the front corner portion is formed at an outer end portion of the first engagement claw in the vehicle width direction,
The second guide surface is inclined so that the vehicle rear side is located on the inner side in the vehicle width direction,
A third guide surface that is guided by the rear corner portion is formed at an outer end portion of the third engagement claw in the vehicle width direction,
The third guide surface, the pillar interior structure of a vehicle inclined to have claim 1 so as to be positioned inside in the vehicle width direction as the front side of the vehicle. A fourth guide surface that is guided by a stepped surface portion facing the up-down direction of the stepped portion of the first rear wall is formed at the outer end of the third engaging claw in the vehicle width direction,
The pillar interior structure of a vehicle according to claim 9 , wherein the fourth guide surface is inclined so as to be located on the inner side in the vehicle width direction toward the upper side. The claw portion of the third engagement claw protrudes upward from the claw base portion of the third engagement claw and engages with the upper peripheral edge portion of the third opening,
The pillar interior structure of a vehicle according to claim 9 or 10 , wherein a contact portion that contacts a lower peripheral edge portion of the third opening is provided at an upper end portion of the second rear wall. The abutment portion extends downward from a first lateral rib projecting from the second rear wall below the third engagement claw to the vehicle front side, and an end of the first lateral rib in the vehicle width direction. A first vertical rib, and a rib receiver protrudes from the lower peripheral edge of the third opening to the vehicle rear side,
The pillar interior structure of a vehicle according to claim 11, wherein a lower end portion of the first vertical rib abuts on the rib receiver from above. The claw base portion of the first engagement claw includes a second horizontal rib protruding from the second front wall to the vehicle rear side, and a second vertical rib extending downward from an end portion of the second horizontal rib in the vehicle width direction. And
The claw portion of the first engagement claw projects from the end of the second vertical rib on the vehicle rear side inward in the vehicle width direction, and engages with the peripheral edge portion of the second opening in the vehicle width direction,
The pillar interior structure of a vehicle according to any one of claims 10 to 12 , wherein a lower end portion of the second vertical rib contacts a lower peripheral edge portion of the second opening.

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