WO2021065378A1

WO2021065378A1 - Vehicle body side structure and partition member

Info

Publication number: WO2021065378A1
Application number: PCT/JP2020/033931
Authority: WO
Inventors: 大貴古田; 井上　仁
Original assignee: 本田技研工業株式会社
Priority date: 2019-09-30
Filing date: 2020-09-08
Publication date: 2021-04-08
Also published as: CN114302843A; JP2021054303A; JP7065063B2

Abstract

This vehicle body side structure is provided with: a side sill (1) extending in the front-rear direction of a vehicle body; a center pillar outer (7) extending upward from the side sill (1); a center pillar inner (6) arranged on the inside of the center pillar outer (7) in the vehicle width direction; and a partition member (3) that is arranged within a hollow section formed by the center pillar outer (7) and the center pillar inner (6) and that extends in the front-rear direction of the vehicle body. The vehicle body side structure is characterized in that the partition member (3) is provided with a restricting means (an angle-restricting rib (19)) configured from a plurality of partition sections (a horizontal section (9) and an outer inclined section (11)) connected by a resin hinge (a hinge section (H2)) and serving to restrict the bending angle of the resin hinge.

Description

Body side structure and partition members

The present invention relates to a vehicle body side structure and a partition member.

Conventionally, in order to improve the soundproofing performance of the vehicle body, a vehicle body side structure in which the hollow portion of the center pillar joined to the side sill is filled with a foamable resin is known (see, for example, Patent Document 1). In this vehicle body side structure, a partition member is arranged in the lower end hollow portion of the center pillar so as to face the upper surface of the side sill, and the foamable resin is filled between the upper surface of the side sill and the partition member (filling chamber). There is.

Japanese Unexamined Patent Publication No. 2019-14326

By the way, in the conventional vehicle body side structure (see, for example, Patent Document 1), the partition member can be partially folded so that it can be easily handled in the narrow hollow portion of the center pillar. Specifically, the partition member inserted into the center pillar from a predetermined opening in the folded state partitions the hollow portion of the center pillar by re-expanding to form a foaming resin filling chamber.
However, when such a partition member is unfolded, the restoration to the shape before folding may be insufficient, and a gap may be formed between the partition member and the inner wall surface of the center pillar. When such a gap is formed, the foamable resin may leak from the filling chamber through the gap.

An object of the present invention is to provide a partition member capable of more reliably preventing leakage of foamable resin from a preset filling chamber, and a vehicle body side structure provided with the partition member.

The vehicle body side structure of the present invention that solves the above problems includes a side sill extending in the front-rear direction of the vehicle body, a center pillar outer extending upward from the side sill, and a center pillar inner arranged inside the center pillar outer in the vehicle width direction. A partition member arranged in a hollow portion formed by the center pillar outer and the center pillar inner and extending in the front-rear direction of the vehicle body is provided, and the partition member is composed of a plurality of partition portions connected by a resin hinge. It is characterized by providing means for regulating the bending angle of the resin hinge.

Further, the partition member of the present invention that solves the above-mentioned problems is a partition member that partitions a filling chamber of a foamable resin in a hollow portion of a center pillar, and has a plurality of partition portions connected by a resin hinge and a bending angle of the resin hinge. It is characterized by having the regulatory means of.

According to the vehicle body side structure and the partition member of the present invention, it is possible to more reliably prevent the foamable resin from leaking from the preset filling chamber.

It is a partially enlarged perspective view of the vehicle body side structure which concerns on embodiment of this invention. FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a sectional view taken along line III-III of FIG. It is an overall perspective view of the partition member which concerns on embodiment of this invention. FIG. 4A is a partial cross-sectional view taken along the line IVb-IVb of FIG. 4A. It is a front view which looked at the partition member in FIG. 1 from the outside of a car body. It is a top view of the partition member in FIG. It is a bottom view of the partition member in FIG. FIG. 1 is a side view of the partition member in FIG. 1 as viewed from the front side of the vehicle body. It is a side view which looked at the partition member in FIG. 1 from the rear side of a vehicle body. FIG. 1 is a partially enlarged perspective view showing a state in which the center pillar outer and the partition member are removed. It is a process explanatory drawing of the manufacturing method of the vehicle body side structure which concerns on this embodiment. It is a process explanatory drawing of the manufacturing method of the vehicle body side structure which concerns on this embodiment. It is a process explanatory drawing of the manufacturing method of the vehicle body side structure which concerns on this embodiment. It is a process explanatory drawing of the manufacturing method of the vehicle body side structure which concerns on this embodiment. It is a perspective view which shows the foaming position of the filler in the filling chamber of the vehicle body side structure which concerns on this embodiment. It is a perspective view which shows the foaming position of the filler in the filling chamber of the vehicle body side structure as a reference example.

Next, the vehicle body side structure according to the embodiment of the present invention (the present embodiment) will be described in detail with reference to the drawings as appropriate. The directions indicated by the arrows in the vertical and front-back directions of the referenced drawing coincide with the vertical-front-back directions of the vehicle body. In addition, the directions indicated by arrows inside and outside the drawing coincide with the inside and outside of the vehicle body in the vehicle width direction.

The partition member constituting the vehicle body side structure according to the present embodiment can be folded and unfolded when it is arranged in the hollow portion of the center pillar to form a foaming resin filling chamber. The main feature of the partition member is that it has a means for regulating the bending angle at the time of folding.

Hereinafter, the vehicle body side structure will be described by taking as an example a structure in which the hollow portion of the center pillar is partitioned by a partition member to form a foaming resin filling chamber. Incidentally, the structure filled with the foamable resin in the center pillar functions to prevent the road noise generated when the automobile is running and the wind noise of the vehicle body constituents from being transmitted to the occupants.
Such a vehicle body side structure according to the present embodiment is applied to both the left and right sides of the vehicle body.
However, in the following, only those arranged on the left side of the vehicle body will be described, and those arranged on the right side of the vehicle body having a symmetrical structure with the center line in the vehicle width direction in between will be described. Omit.

FIG. 1 is a partially enlarged perspective view of a vehicle body side structure C according to the present embodiment.
In FIG. 1, the center pillar outer 7 is shown by a virtual line (dashed line) for convenience of drawing showing the inside of the hollow portion 8 of the center pillar 2.
As shown in FIG. 1, the vehicle body side structure C includes a side sill 1, a center pillar 2, and a partition member 3.

<Side sill>
As shown in FIG. 1, the side sill 1 is arranged so as to extend in the front-rear direction on the side portion of the vehicle body.
Such a side sill 1 includes a side sill inner 4 arranged inside in the vehicle width direction and a side sill outer 5 arranged outside in the vehicle width direction.
The side sill inner 4 has a hat shape that opens outward in the vehicle width direction in a cross-sectional view intersecting the vehicle body front-rear direction. Further, the side sill outer 5 has a hat shape that opens inward in the vehicle width direction in a cross-sectional view intersecting the vehicle body front-rear direction.

The side sill inner 4 and the side sill outer 5 are joined by spot welding or the like with flanges corresponding to each other's hat-shaped flanges. As a result, the bulging portions corresponding to each other's hat-shaped mountain heights are integrated, and the side sill 1 forms a closed cross section.

Further, the center pillar inner 6 constituting the center pillar 2 described later is arranged between the flanges of the side sill inner 4 and the side sill outer 5, and is joined to these in three layers.

The upper surface 5a of the side sill outer 5 is slightly inclined so as to be gradually displaced downward from the center pillar inner 6 side toward the outside in the vehicle width direction.
As will be described later, the upper surface 5a is formed with a round hole 30a and an elongated hole 30b (see FIG. 6) that serve as mounting holes for the partition member 3.

Although not shown, a plurality of reinforcing members having a substantially L-shape in cross-sectional view are arranged inside the side sill 1.
These reinforcing members are arranged so as to extend in the front-rear direction of the vehicle body at the upper corner portion and the lower corner portion in the hat-shaped mountain height portion of the side sil inner 4. Further, the reinforcing members are arranged so as to extend in the front-rear direction of the vehicle body at the upper corner portion and the lower corner portion in the hat-shaped mountain height portion of the side sill outer 5.

<Center pillar>
The center pillar 2 (see FIG. 1) is a hollow columnar object extending in the vertical direction on the side of the vehicle body.
As shown in FIG. 1, the lower portion of the center pillar 2 is joined to the side sill 1. Further, although not shown, the upper portion of the center pillar 2 is joined to the roof side rail.
The center pillar 2 in the present embodiment is slightly inclined so as to be gradually displaced to the rear of the vehicle body from the lower side toward the upper part.
Such a center pillar 2 includes a center pillar inner 6 arranged inside in the vehicle width direction and a center pillar outer 7 arranged outside in the vehicle width direction.

(Center Pillar Inner)
As described above, the center pillar inner 6 is formed of a substantially plate body extending upward from the lower side sandwiched between the flanges of the side sill inner 4 and the side sill outer 5.

The center pillar inner 6 forms a substantially outer shape of the center pillar 2 when viewed from the inside in the vehicle width direction. That is, the lower portion of the center pillar inner 6 is formed wide on the side sill 1 side, and extends so as to gradually narrow the width in the front-rear direction of the vehicle body toward the upper side. Specifically, both edges of the center pillar inner 6 in the front-rear direction of the vehicle body form a gentle curve so as to be concave downward.
Since the center pillar 2 in the present embodiment is slightly inclined toward the rear as described above, the curve formed on the front side in the front-rear direction of the vehicle body is larger than the curve formed on the rear side. Is also formed to draw a gentle arc.

Further, a substantially rectangular opening 14 is provided in the lower portion of the center pillar inner 6 in the substantially center in the front-rear direction of the vehicle body.
This opening 14 that communicates the inside and outside of the hollow portion 8 of the center pillar 2 inside in the vehicle width direction serves as an arrangement port for the partition member 3 in the hollow portion 8 of the center pillar 2, as will be described in detail later. Further, the opening 14 in the present embodiment also serves as an arrangement port for later arranging the outer half body of the seatbelt retractor (not shown) in the vehicle width direction in the hollow portion 8 of the center pillar 2. ..

Further, in the lower part of the center pillar inner 6, a foaming resin filling hole 15 described later is formed. The filling hole 15 communicates with the filling chamber 17 described later, which is formed between the partition member 3 and the upper surface 5a of the side sill outer 5.

The filling hole 15 is composed of a pair of filling holes 15a and a filling hole 15b. These filling holes 15a and 15b are arranged so as to sandwich the lower portion of the opening 14 in the front-rear direction of the vehicle body.
Specifically, the filling hole 15a is formed below the first inclined portion 12a of the partition member 3 described later. Further, the filling hole 15b is formed below the second inclined portion 12b of the partition member 3 described later.
Then, these filling holes 15a and 15b face the wall portion 10 of the partition member 3 described later. The wall portion 10 corresponds to the "injection guide rib" in the claims.

(Center pillar outer)
Next, the center pillar outer 7 (see FIG. 1) will be described.
FIG. 2 is a sectional view taken along line II-II of FIG. FIG. 3 is a sectional view taken along line III-III of FIG. In FIGS. 2 and 3, the same components as those in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in FIG. 2, the center pillar outer 7 has a hat shape that opens inward in the vehicle width direction in a cross-sectional view that intersects in the vertical direction.
Both flanges corresponding to the hat-shaped flanges of the center pillar outer 7 are joined to both edges of the center pillar inner 6 in the front-rear direction of the vehicle body by spot welding or the like.
As a result, as shown in FIG. 1, the center pillar outer 7 is formed wider on the side sill 1 side according to the shape of the center pillar inner 6, and the width in the front-rear direction of the vehicle body is gradually narrowed toward the upper side. Extends to.

Further, as shown in FIG. 2, in the center pillar outer 7, a bulging portion corresponding to a hat-shaped mountain height portion forms the above-mentioned hollow portion 8 with the center pillar inner 6.
The hollow portion 8 shown in FIG. 2 shows a state of being formed above the partition member 3 described later, and reference numeral 14 is an opening of the center pillar inner 6.
The shape of the hollow portion 8 in the present embodiment is a cross-sectional shape shown in FIG. 2 intersecting in the vertical direction, and has a substantially isosceles trapezoidal shape in which the upper base shorter than the lower base is located outside in the vehicle width direction. It is presented.

In FIG. 2, reference numeral 16 is a clip for attaching a separator (not shown) to the inner wall surface of the center pillar outer 7. As will be described later, the clip 16 is arranged at a position corresponding to the recess 23 of the partition member 3 in the vertical direction.
In FIG. 2, the description of the stiffener arranged on the inner wall surface of the center pillar outer 7 is omitted for convenience of drawing.

As shown in FIG. 1, both side surfaces of the center pillar outer 7 in the front-rear direction of the vehicle body extend divergently from the upper side to the lower side. The lower portions of the center pillar outer 7 on both side surfaces extend along the upper surface 5a of the side sill outer 5.
The lower portions of the center pillar outer 7 on both side surfaces are joined to the upper surface 5a of the side sill outer 5 by spot welding or the like.

As shown in FIG. 3, the outer surface 21 of the center pillar outer 7 in the vehicle width direction is inclined so as to be displaced outward in the vehicle width direction from above to downward.
Further, the lower end portion 21a of the outer surface 21 extends so as to overlap the outer surface 22 of the side sill outer 5 in the vehicle width direction.
The overlapping portion of the lower end portion 21a of the center pillar outer 7 is joined to the outer surface 22 of the side sill outer 5 by spot welding or the like.
In FIG. 3, reference numeral 4 is a side sill inner, and reference numeral 14 is an opening of the center pillar inner 6. Reference numeral 16 is a clip for attaching the separator described above, and reference numeral 3 is a partition member described below. Further, in FIG. 3, the description of the stiffener arranged on the inner wall surface of the center pillar outer 7 is omitted for convenience of drawing.

<Partition member>
Next, the partition member 3 (see FIG. 1) will be described.
4A is an overall perspective view of the partition member according to the embodiment of the present invention, and FIG. 4B is a partial cross-sectional view of IVb-IVb of FIG. 4A. 5A is a front view of the partition member 3 in FIG. 1 as viewed from the outside of the vehicle body, FIG. 5B is a top view of the partition member 3 in FIG. 1, FIG. 5C is a bottom view of the partition member 3 in FIG. 1, and FIG. 5D is FIG. 5E is a side view of the partition member 3 in FIG. 1 as viewed from the front side of the vehicle body, and FIG. 5E is a side view of the partition member 3 in FIG. 1 as viewed from the rear side of the vehicle body.

As shown in FIG. 4A, the partition member 3 has a horizontal portion 9, an inclined portion 12, and an outer inclined portion 11. The horizontal portion 9, the inclined portion 12, and the outer inclined portion 11 form a "partition portion" as defined in the claims.
Further, as shown in FIGS. 4A and 4B, the partition member 3 includes a hinge portion H1 having a center-folded structure, a hinge portion H2 of an outer inclined portion 11, an angle regulating rib 19 of the hinge portion H2, a recessed portion 18, and a wall. It is configured to include a part 10 and the like. The hinge portion H2 corresponds to the "resin hinge" in the claims. The angle regulating rib 19 corresponds to the "bending angle regulating means" in the claims, and the wall portion 10 corresponds to the "injection guide rib" in the claims.
Incidentally, the partition member 3 in the present embodiment is assumed to be an integrally molded product made of a synthetic resin.

(Horizontal part)
As shown in FIGS. 5A to 5C, the horizontal portion 9 is formed by joining the first half body 9a arranged in the front-rear direction of the vehicle body and the second half body 9b via the hinge portion H1. In FIG. 4A, the hinge H1 is indicated by a hidden line (dotted line).
As shown in FIGS. 5A to 5C, the hinge portion H1 is formed to be thinner than the general portion of the horizontal portion 9. The hinge portion H1 partially joins the first half body 9a and the second half body 9b at substantially the center of the horizontal portion 9 in the vehicle width direction (inner and outer directions).

The horizontal portion 9 has a structure having a center-folding structure 20 (see FIG. 7B) that is center-folded so that the first half body 9a and the second half body 9b face each other by the hinge portion H1.
The first half body 9a in the present embodiment is arranged on the front side in the front-rear direction of the vehicle body. As shown in FIGS. 5B and 5C, the planar shape of the first half body 9a has a substantially right-angled trapezoidal shape having a hypotenuse 9a1 at the front end in the front-rear direction of the vehicle body.

Further, the second half body 9b in the present embodiment is arranged on the rear side in the front-rear direction of the vehicle body. The planar shape of the second half body 9b has a substantially right-angled trapezoidal shape having a hypotenuse 9b1 at the rear end in the front-rear direction of the vehicle body.

That is, as shown in FIGS. 5B and 5C, the planar shape of the horizontal portion 9 in which the first half body 9a and the second half body 9b are joined has the upper bottom of the short side inside the vehicle width direction and the vehicle. It has a substantially trapezoidal shape with a lower base on the long side extending parallel to the upper base on the outside in the width direction.
The hypotenuse 9a1 of the first half body 9a in the present embodiment is longer than the hypotenuse 9b1 of the second half body 9b.

(Inclined part)
Next, the inclined portion 12 (see FIG. 4A) will be described.
As shown in FIG. 5A, the inclined portion 12 is arranged on the front side of the first half body 9a in the vehicle body front-rear direction and on the rear side of the second half body 9b in the vehicle body front-rear direction. It is composed of a second inclined portion 12b.

The first inclined portion 12a has a substantially triangular shape in the top view shown in FIG. 5B. The base of the first inclined portion 12a having a substantially triangular shape is connected to the oblique side 9a1 of the first half body 9a. Further, in the first inclined portion 12a, in the top view shown in FIG. 5B, the first side 26a having a substantially triangular shape extends along the substantially front-rear direction of the vehicle body, and the second side 26b having a substantially triangular shape extends in the substantially vehicle width direction ( It extends along the inward and outward directions).

Such a first inclined portion 12a is inclined so as to be gradually displaced upward toward the front side in the front-rear direction of the vehicle body in the front view shown in FIG. 5A.
Then, as shown in FIGS. 5A and 5B, the first inclined portion 12a is slightly curved so as to be convex upward.

As a result, the first side 26a of the first inclined portion 12a is arranged along the inner wall surface of the center pillar inner 6 as shown in FIG. As shown in FIG. 1, the second side 26b of the first inclined portion 12a is arranged along the inner wall surface of the front side portion of the center pillar outer 7 in the front-rear direction of the vehicle body.

The second inclined portion 12b has a substantially triangular shape in the top view shown in FIG. 5B. The base of the second inclined portion 12b having a substantially triangular shape is connected to the oblique side 9b1 of the second half body 9b. Further, in the second inclined portion 12b, in the top view shown in FIG. 5B, the first side 27a having a substantially triangular shape extends along the substantially front-rear direction of the vehicle body, and the second side 27b having a substantially triangular shape extends in the substantially vehicle width direction (the second side 27b having a substantially triangular shape). It extends along the inward and outward directions).

Such a second inclined portion 12b is inclined so as to be gradually displaced upward toward the rear side in the front-rear direction of the vehicle body in the front view shown in FIG. 5A.
Then, as shown in FIGS. 5A and 5B, the second inclined portion 12b is slightly curved so as to be convex upward.

As a result, the first side 27a of the second inclined portion 12b is arranged along the inner wall surface of the center pillar inner 6 (see FIG. 1). The second side 27b of the second inclined portion 12b is arranged along the inner wall surface of the rear side portion of the center pillar outer 7 (see FIG. 1) in the front-rear direction of the vehicle body.
Incidentally, as shown in FIG. 5A, the height of the second inclined portion 12b is set to be higher than that of the first inclined portion 12a.

Further, as shown in FIG. 4A, a bent portion 13 is formed on the upper portion of the inclined portion 12. The bent portion 13a of the first inclined portion 12a is tilted to the front side of the first inclined portion 12a by changing the angle. Further, the bent portion 13b of the second inclined portion 12b is tilted to the rear side of the second inclined portion 12b by changing the angle.
As a result, the bent portion 13 of the inclined portion 12 is arranged along the inner wall surface of the center pillar 2 when the partition member 3 is arranged in the hollow portion of the center pillar 2 shown in FIG.

(Outer slope)
Next, the outer inclined portion 11 (see FIG. 4A) will be described.
As shown in FIGS. 5B and 5C, the outer inclined portion 11 includes a first outer inclined portion 11a arranged on the first half body 9a side and a second outer inclined portion 11b arranged on the second half body 9b side. It is composed of and.
Each of the first outer inclined portion 11a and the second outer inclined portion 11b is an elongated plate formed so as to extend long along the outer edge of the first half body 9a and the second half body 9b in the vehicle width direction. It is formed by the body.

Each of the first outer inclined portion 11a and the second outer inclined portion 11b is attached to each of the first half body 9a and the second half body 9b via independent hinge portions H2 and H2 (resin hinges).
As shown in FIGS. 5D and 5E, these hinge portions H2 and H2 are formed to be thinner than the general portions of the first outer inclined portion 11a and the second outer inclined portion 11b.

Each of the first outer inclined portion 11a and the second outer inclined portion 11b can rotate around the hinge portion H2 at the outer edge of the first half body 9a and the second half body 9b in the vehicle width direction. ing. That is, each of the first outer inclined portion 11a and the second outer inclined portion 11b can be displaced in the vertical direction on the outside in the vehicle width direction with respect to each of the first half body 9a and the second half body 9b. It can be folded.

(Angle regulation rib)
Next, the angle regulating rib 19 (see FIG. 4B) will be described.
As shown in FIG. 4B, the angle regulating rib 19 as a bending angle regulating means is close to the hinge portion H2 (resin hinge) connecting the horizontal portion 9 (partition portion) and the outer inclined portion 11 (partition portion). It is arranged to do.
The angle regulating rib 19 has an angle regulating rib 19a formed on the edge of the horizontal portion 9 on the side connected by the hinge portion H2 (resin hinge) and an outer inclined portion on the side connected by the hinge portion H2 (resin hinge). It is composed of an angle regulating rib 19b formed on the edge of 11.
Each of the angle regulating ribs 19a and 19b extends downward from the respective end edges of the horizontal portion 9 and the outer inclined portion 11 and faces each other.
That is, as will be described later, each of the angle regulating ribs 19a and 19b is directed to the angle side formed by the outer inclined portion 11 and the horizontal portion 9 in the direction D in which the outer inclined portion 11 is bent with respect to the horizontal portion 9. It is erected in.
As a result, the angle regulating ribs 19 are arranged along the bending line FL of the outer inclined portion 11 as shown in FIG. 4A.
Then, as shown in FIG. 4B, when the outer inclined portion 11 is bent in the bending direction D with respect to the horizontal portion 9, the angle represented by a virtual line (two-dot chain line) with respect to the angle regulating rib 19a. The bending angle of the outer inclined portion 11 is regulated by the contact of the regulating ribs 19b.

(Dent)
Next, the recessed portion 18 (see FIG. 4B) will be described.
As shown in FIG. 5A, the recessed portion 18 is composed of a first recessed portion 18a arranged on the first half body 9a side and a second recessed portion 18b arranged on the second half body 9b side. There is.
Each of the first recessed portion 18a and the second recessed portion 18b is formed so as to project downward from each of the first half body 9a and the second half body 9b.
Then, as shown in FIG. 5B, the first recessed portion 18a is arranged substantially at the center of the first half body 9a in the front-rear direction of the vehicle body. Further, as shown in FIG. 5B, the second recessed portion 18b is arranged closer to the hypotenuse 9b1 of the second half body 9b.

Each of the first recessed portion 18a and the second recessed portion 18b has base portions 28a and 28b and engaging

portions

29a and 29b, respectively, as shown in FIG. 5A. When the base portion 28a and the base portion 28b are not distinguished in the following description, they are simply referred to as the base portion 28.

The base 28 has an outer shape of a substantially truncated cone whose diameter decreases as the distance from each of the lower surfaces of the first half body 9a and the second half body 9b increases.
Then, as shown in FIGS. 5A to 5C, these bases 28 are formed by partially denting each plate body constituting the first half body 9a and the second half body 9b. There is. That is, these bases 28 are formed of a bottomed cylinder that opens upward and closes downward. Incidentally, in FIG. 3, the axis of the base 28 indicated by the reference numeral Ax extends so as to be orthogonal to the upper surface 5a of the side sill outer 5.

Such a base 28 (see FIG. 5A) is shown in FIG. 3 when the engaging

portions

29a and 29b (see FIG. 5A) are engaged with the upper surface 5a (see FIG. 1) of the side sill outer 5 as described later. As described above, it functions as a spacer that separates the upper surface 5a and the horizontal portion 9 at predetermined intervals.

As shown in FIGS. 5A and 5C, the engaging

portions

29a and 29b are arranged on the lower end surfaces of the base portions 28a and 28b, respectively.
The engaging

portions

29a and 29b are configured to snap-fit each of the round hole 30a (see FIG. 6) and the elongated hole 30b (see FIG. 6), which will be described later. The engaging

portions

29a and 29b in the present embodiment are assumed to be protrusions having a barb that is caught on the peripheral edge of the hole portion on the back side when fitted into each of the round hole 30a and the elongated hole 30b, but the present invention is limited to this. It's not something.

Next, the round hole 30a (see FIG. 6) and the elongated hole 30b (see FIG. 6) with which the engaging

portions

29a and 29b (see FIG. 5A) are engaged will be described.
FIG. 6 is a partially enlarged perspective view showing a state in which the center pillar outer 7 and the partition member 3 are removed in FIG. 1.
As shown in FIG. 6, on the upper surface 5a of the side sill outer 5, when the partition member 3 (see FIG. 1) is arranged on the upper surface 5a, the engaging

portions

29a and 29b (see FIG. 5A) of the partition member 3 are engaged. A round hole 30a and a long hole 30b are formed so as to correspond to each other. These round holes 30a and elongated holes 30b penetrate the plate material forming the side sill outer 5.

As shown in FIG. 1, the round hole 30a (see FIG. 6) with which the engaging portion 29a (see FIG. 5A) engages serves as a main reference for positioning the partition member 3 with respect to the upper surface 5a of the side sill outer 5. Become.
As shown in FIG. 6, the elongated hole 30b is formed long in the front-rear direction of the vehicle body. The elongated hole 30b serves as a sub-reference when positioning the partition member 3 with respect to the upper surface 5a of the side sill outer 5.
That is, as will be described later, after engaging the engaging portion 29a (see FIG. 5A) with the round hole 30a (see FIG. 6), the engaging portion 29b (see FIG. 5A) is engaged with the elongated hole 30b (see FIG. 6). ), The elongated hole 30b absorbs a slight deviation of the engaging portion 29b in the front-rear direction and engages with the engaging portion 29b.

(Wall)
Next, the wall portion 10 (see FIG. 4A) as the injection guide rib will be described.
As shown in FIG. 1, the wall portion 10 in the present embodiment faces the filling hole 15 (hole portion) in the hollow portion 8 of the center pillar 2.
As will be described later, when the filler (foamable resin) described later is injected into the hollow portion 8 of the center pillar 2 through the filling hole 15, the wall portion 10 directs the flow of the filler downward. It functions as a guide plate to guide you.

As shown in FIG. 4A, such a wall portion 10 is formed of a substantially triangular plate body. Then, as shown in FIG. 1, the wall portion 10 in the present embodiment is formed on both the first inclined portion 12a and the second inclined portion 12b.

As shown in FIG. 3, when the partition member 3 as described above is arranged on the inclined upper surface 5a of the side sill outer 5, the horizontal portion 9 is formed by the base portion 28 having an axis Ax orthogonal to the upper surface 5a. The plate surface becomes almost horizontal.
Then, the outer inclined portion 11 rotatably attached to the horizontal portion 9 around the hinge portion H2 is moved upward by the outer edge portion in the vehicle width direction abutting on the inner wall surface of the inclined center pillar outer 7. Displacement is regulated.

In the vehicle body side structure C in which such a partition member 3 is arranged in the hollow portion 8 of the center pillar 2, as shown in FIG. 1, the hollow portion 8 of the center pillar 2 is partitioned in the vertical direction by the partition member 3.
Then, the hollow portion 8 of the center pillar 2 forms a foamable resin filling chamber 17 between the partition member 3 and the upper surface 5a of the side sill outer 5. The filling chamber 17 communicates with the outside of the center pillar 2 through the filling holes 15a and 15b.
The wall portion 10 of the partition member 3 faces the filling hole 15 (hole portion).

<Manufacturing method of vehicle body side structure>
Hereinafter, a method of manufacturing the vehicle body side structure C according to the present embodiment will be described while mainly showing a method of attaching the partition member 3 to the hollow portion 8 of the center pillar 2.
FIG. 7A is an explanatory view of the first step in the manufacturing method of the vehicle body side structure C in which the outer inclined portion 11 of the partition member 3 is folded.
FIG. 7B is an explanatory view of the second step in the manufacturing method of the vehicle body side structure C in which the horizontal portion 9 of the partition member 3 is bent in the middle.
FIG. 7C is an explanatory view of a third step in the method of manufacturing the vehicle body side structure C in which the partition member 3 is inserted into the hollow portion 8 of the center pillar 2.
FIG. 7D is an explanatory view of a fourth step in the method of manufacturing the vehicle body side structure C in which the partition member 3 is developed by the hollow portion 8 of the center pillar 2 and attached to the upper surface 5a of the side sill outer 5.

In the first step of this manufacturing method, as shown in FIG. 7A, the outer inclined portion 11 of the partition member 3 is displaced downward and folded.
At this time, the bending angle of the outer inclined portion 11 is regulated by the angle regulating rib 19.
In FIG. 7A, reference numeral 18b is a second recessed portion, and reference numeral 12b is a second inclined portion.

Next, in the second step of this manufacturing method, as shown in FIG. 7B, the horizontal portion 9 of the partition member 3 is bent around the hinge portion H1. As a result, the first half body 9a and the second half body 9b of the horizontal portion 9 face each other.
In FIG. 7B, reference numeral 12a is a first inclined portion, and reference numeral 12b is a second inclined portion. Reference numeral 18a is a first recessed portion, and reference numeral 18b is a second recessed portion.

Next, in the third step of this manufacturing method, as shown in FIG. 7C, the middle-folded partition member 3 is side-silled from the inside of the vehicle (the back side of the paper surface in FIG. 7C) through the opening 14 of the center pillar inner 6. It is arranged above the outer 5. That is, the partition member 3 is inserted into the hollow portion 8 of the center pillar 2.

After that, the engaging portion 29a of the first recessed portion 18a is brought close to the round hole 30a. At this time, the folded front outer inclined portion 11a (see FIG. 5B) is developed so as to gradually approach the inner wall surface of the center pillar 2.
In FIG. 7C, reference numeral 5a is the upper surface of the side sill outer 5. Further, reference numeral 30b is an elongated hole in which the engaging portion 29b of the second recessed portion 18b is engaged.

Then, as shown in FIG. 3, the outer inclined portion 11a is the inner wall surface of the center pillar 2 below the clip 16 while avoiding interference with the clip 16 (see FIG. 2) on the front side in the recess 23 (see FIG. 2). Contact with.

Next, in the fourth step of this manufacturing method, as shown in FIG. 7D, the first half body 9a of the horizontal portion 9 is arranged along the upper surface 5a of the side sill outer 5. At the same time, the second half body 9b is deployed with respect to the first half body 9a.
At this time, the folded rear side outer inclined portion 11b (see FIG. 5B) is developed so as to gradually approach the inner wall surface of the center pillar 2.

Then, as shown in FIG. 3, the outer inclined portion 11b is inside the center pillar 2 below the clip 16 while avoiding interference with the clip 16 (see FIG. 2) on the rear side in the recess 23 (see FIG. 2). Contact the wall surface.
After the first half body 9a and the second half body 9b are lined up in the front-rear direction of the vehicle body by such development, the engaging portion 29a of the first recessed portion 18a is first inserted into the round hole 30a as the main reference. Engage.

Next, when the engaging portion 29b of the second recessed portion 18b is inserted into the elongated hole 30b, the position of the engaging portion 29b is determined in the front-rear direction of the vehicle body depending on the degree of deployment of the first half body 9a and the second half body 9b. May deviate slightly.
On the other hand, the elongated hole 30b is formed long in the front-rear direction of the vehicle body.
As a result, the elongated hole 30b absorbs a slight deviation of the engaging portion 29b in the front-rear direction and engages with the engaging portion 29b.

When each of the engaging

portions

29a and 29b engages with the round hole 30a and the elongated hole 30b, the base portion 28a of the first recessed portion 18a and the base portion 28b of the second recessed portion 18b are horizontal. A distance is provided from the upper surface 5a of the side sill outer 5 so that the plate surfaces of the portions 9 (first half body 9a and second half body 9b) are horizontal.
As a result, the foamable resin filling chamber 17 (see FIG. 1) is formed between the partition member 3 and the upper surface 5a of the side sill outer 5.

Next, a step of filling the filling chamber 17 (see FIG. 1) with the foamable resin will be described.
FIG. 8A is a perspective view showing the position of the foam source Fp of the filler to be filled in the filling chamber 17 of the vehicle body side structure C according to the present embodiment. FIG. 8B is a perspective view showing the position of the foam source Fp of the filler to be filled in the filling chamber 17 of the vehicle body side structure Co as a reference example.
The vehicle body side structure C according to the present embodiment has the wall portion 10 on the partition member 3, whereas the vehicle body side structure Co as a reference example has the wall portion 10 on the partition member 3a. It differs in that it does not have.

In this filling step, an uncured foamable resin (liquid) is injected into the filling chamber 17 through the filling hole 15, and the foamable resin is foamed and then cured to cure the filling chamber 17. Fill with.

The cured foamable resin in the present embodiment is assumed to be a rigid urethane foam, but the present invention is not limited to this, and other cured foamed resins may be used.
The rigid urethane foam in the present embodiment is formed by foaming the urethane foam stock solution and then curing it.
Examples of the urethane foam stock solution include a solution obtained by premixing a polyether polyol with a foaming agent such as cyclopentane and water, and an auxiliary agent such as a catalyst and a foam stabilizer, and a solution obtained by mixing an isocyanate solution. ..

As shown in FIG. 8B, when the uncured foamable resin R is injected and injected from the filling hole 15 into the filling chamber 17 in the vehicle body side structure Co that does not have the wall portion 10, the side sill is closer to the outside in the vehicle width direction. Liquid foamable resin R accumulates on the upper surface 5a of the outer 5. In particular, this tendency becomes remarkable on the upper surface 5a, which has a downward slope toward the outside.

After that, the foamable resin R foams when the cross-linking reaction starts, and the foam gradually fills the filling chamber 17. Then, as the cross-linking reaction progresses, the foamable resin R is cured.
At this time, the basic foam source Fp of the foamable resin R is closer to the outside in the vehicle width direction in which the uncured foamable resin R is accumulated in the initial stage.

On the other hand, in the vehicle body side structure C according to the present embodiment, as shown in FIG. 8A, when the uncured foamable resin R is injected and injected into the filling chamber 17 from the filling hole 15, the uncured foamable resin is injected. R corresponds to the wall portion 10 that functions as a guide plate. After that, the foamable resin R changes the direction of flow downward by the wall portion 10.

Then, the uncured foamable resin R starts foaming as soon as it reaches the upper surface 5a of the side sill outer 5. That is, in the vehicle body side structure C according to the present embodiment, unlike the reference example, the foam source Fp is formed on the upper surface 5a of the side sill outer 5 located below the wall portion 10.

<Effect>
Next, the action and effect of the vehicle body side structure C of the present embodiment will be described.

The partition member 3 of the present embodiment has a plurality of partition portions connected by a hinge portion H2 (resin hinge), that is, a horizontal portion 9, and an outer inclined portion 11. The partition member 3 has a regulating means (angle regulating rib 19) for regulating the bending angle of the outer inclined portion 11 with respect to the horizontal portion 9.
According to the present embodiment, when the partition member 3 is deployed in the hollow portion of the center pillar 2, the restoration to the shape before bending is performed more reliably. Thereby, in the present embodiment, the formation of a gap between the inner wall surface of the center pillar 2 and the partition member 3 is suppressed as much as possible, and the foamable resin is effectively prevented from leaking from the filling chamber 17.

Further, the bending angle regulating means is composed of a pair of angle regulating ribs 19a and 19b.
The partition member 3 having such angle-regulating ribs 19a and 19b regulates the bending angle of the outer inclined portion 11 with respect to the horizontal portion 9 by abutting the free ends of the angle-regulating ribs 19a and 19b, so that it is more reliable. The bending angle can be controlled, and it can be easily manufactured by a general resin molding method or the like.

Further, since the rigidity of the angle regulating ribs 19a and 19b can be adjusted by changing the thickness, the degree of freedom in designing the partition member 3 is expanded. Further, since the angle regulating ribs 19a and 19b project toward the filling chamber 17 and have a simple structure composed of a plate body, the flow of the foamable resin in the filling chamber 17 is not significantly obstructed.

Further, in the partition member 3 of the present embodiment, the first half body 9a and the second half body 9b joined via the hinge portion H1 are fixed to the upper surface 5a of the side sill 1 via the recessed portion 18.
According to such a partition member 3, after the first half body 9a and the second half body 9b that are bent in the middle are deployed in the hollow portion of the center pillar 2, the first half body 9a and the second half body 9b are formed. Is fixed to the upper surface 5a of the side sill 1, so that the partition member 3 can be more reliably restored to the shape before bending. Thereby, in the present embodiment, the formation of a gap between the inner wall surface of the center pillar 2 and the partition member 3 is suppressed as much as possible, and the foamable resin is effectively prevented from leaking from the filling chamber 17.

The partition member 3 of the present embodiment has a hinge portion H2 (resin hinge) that connects the outer inclined portion 11 to the outside of the horizontal portion 9 in the vehicle width direction, and the angle is regulated so as to regulate the bending angle of the hinge portion H2. The ribs 19a and 19b are formed.
According to such a partition member 3, this gap is formed at a position away from the opening 14 in the vehicle width direction, that is, at a position where it is difficult for an operator to confirm the presence or absence of a gap with the inner wall surface of the center pillar 2. It can be prevented more reliably. As a result, the partition member 3 can more reliably prevent the foamable resin from leaking from the filling chamber 17.

The partition member 3 of the present embodiment has a wall portion 10 (injection guide rib).
According to such a partition member 3, the wall portion 10 guides the flow of the injected foamable resin downward, so that the position of the inner wall surface of the center pillar 2 and the partition member 3 is separated from the contact portion. Will be supplied with foamable resin.
As a result, the foamable resin is more reliably prevented from leaking from the filling chamber 17.

The partition member 3 of the present embodiment has a bent portion 13 above the inclined portion 12.
Such a partition member 3 is foamed from the lower side to the upper side of the filling chamber 17 by arranging the bent portion 13 along the inner wall surface of the center pillar 2 above the inclined portion 12. The bent portion 13 stably receives the pressing force of the sex resin. As a result, the foamable resin is more reliably prevented from leaking from the filling chamber 17.
Further, since the foamable resin is more reliably prevented from leaking above the filling chamber 17, the parts arranged above the partition member 3 are not interfered with by the foamable resin, and the parts are reliable. The sex can be improved.

The partition member 3 of the present embodiment has engaging

portions

29a and 29b with respect to the upper surface 5a of the side sill 1 at the lower portion of the recessed portion 18.
According to such a partition member 3, it can be stably and easily fixed to the side sill 1.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and can be implemented in various forms.
In the above embodiment, only the angle regulating rib 19 (regulating means) for regulating the bending angle around the hinge H2 is provided, but a regulating means for regulating the bending angle around the hinge H1 may be provided.

Further, in the above-described embodiment, the regulating means is composed of a pair of angle regulating ribs 19a and 19b, but the regulating means is not limited to the rib shape and may be another shape such as a block body. Further, the regulating means is not limited to the one provided in pairs as long as the bending angle between the partition portions joined by the hinge portion can be regulated, and may be provided in any one of the partition portions. ..

1 Side sill 2 Center pillar 3 Partition member 4 Side sill inner 5 Side sill outer 5a Upper surface of side sill outer 6 Center pillar inner 7 Center pillar outer 8 Hollow part of center pillar 9 Base plate 9a 1st half 9b 2nd half 10 Wall Injection guide rib)
11 Outer inclined part 11a First outer inclined part 11b Second outer inclined part 12 Inclined part 12a First inclined part 12b Second inclined part 14 Center pillar inner opening 15 Foaming resin filling hole 15a First filling hole 15b No. 2 Filling hole 17 Filling chamber for foamable resin 18 Depressed part 18a 1st dented part 18b 2nd dented part 19 Angle regulating rib (Bending angle regulating means)
20 Mid-fold structure 29a Engagement part 29b Engagement part C Body side structure H1 Mid-fold structure hinge part H2 Hinge part (resin hinge)

Claims

Side sill that extends in the front-rear direction of the car body,
With the center pillar outer extending upward from the side sill,
The center pillar inner, which is arranged inside the center pillar outer in the vehicle width direction,
A partition member arranged in a hollow portion formed by the center pillar outer and the center pillar inner and extending in the front-rear direction of the vehicle body is provided.
The partition member is composed of a plurality of partition portions connected by a resin hinge, and is provided with means for regulating the bending angle of the resin hinge.
According to claim 1, the regulating means is a pair of ribs that are erected and face each other so as to face the sandwiching angle side in the bending direction at each of the end edges of the partition portion on the side connected by the resin hinge. The described body side structure.
A pair of the partition portions are arranged side by side with each other via a hinge portion in the front-rear direction of the vehicle body to form a horizontal portion, and each of the partition portions has a tubular recess portion formed by partially denting downward on the upper surface of the side sill. The vehicle body side structure according to claim 1, which is abutted and fixed.
A partition portion forming an outer inclined portion that closes a gap with the inner wall of the center pillar outer is connected to the outside of the horizontal portion in the vehicle width direction by the resin hinge, and is connected between the horizontal portion and the outer inclined portion. The vehicle body side structure according to claim 3, wherein the regulating means is arranged.
The front-rear width of the center pillar outer becomes wider toward the bottom.
In each of the front and rear of the horizontal portion, an inclined portion that closes the gap between the front inner wall surface and the rear inner wall surface of the center pillar that has expanded toward the end is formed continuously and integrally with the horizontal portion, and the front and rear inclined portions are formed. The vehicle body side structure according to claim 3, wherein injection guide ribs that guide the flow of the foamable resin to be injected downward are formed in each of the above.
The vehicle body side structure according to claim 5, which has a bent portion along the inner wall surface of the center pillar at the upper portion of the inclined portion.
The vehicle body side structure according to claim 3, wherein the partition member is made of resin and has an engaging portion with respect to the upper surface of the side sill at the lower portion of the recessed portion.
It is a partition member that partitions the filling chamber of the foamable resin in the hollow part of the center pillar.
With multiple partitions connected by resin hinges,
The means for regulating the bending angle of the resin hinge and
A partition member characterized by being provided with.