JPH07165013A - Installing structure of seat belt retractor - Google Patents

Abstract

PURPOSE:To efficiently transmit a load to a center floor tunnel part via a reinforcing member without increasing the number of part items. CONSTITUTION:A center pillar 16 extending in the vertical direction of a car body is arranged at both sides of the body of an automobile, while a side sill 17 is arranged at the lower part of both sides of the body along the longitudinal direction of the car body. Inside the car lateral direction of a joint part between the center pillar 16 and the side sill 17, a floor cross member 30 is arranged along the car lateral direction and coupled with a floor tunnel part. In the vicinity of the joint part between the center pillar 16 and the side sill 17 in the pillar 16, a seat belt retractor 38 is installed at almost the same height as that of an upper wall part 30G of the floor cross member 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat belt retractor mounting structure for a center pillar of a vehicle body.

[0002]

2. Description of the Related Art Conventionally, there is a center pillar of a vehicle body to which a seat belt retractor for a front seat is attached, as disclosed in Japanese Utility Model Laid-Open No. 3-118146. An example of is shown in FIG.

As shown in FIG. 9, in this seat belt retractor mounting structure, the seat belt retractor 170 is installed.
Are arranged in the opening 174 formed in the center pillar inner panel 172 to widen the passenger compartment.

[0004]

However, in this seatbelt retractor mounting structure, the seatbelt retractor 170 is located at a position further above the vehicle body than the rocker inner panel 176 and the floor cross member 178.

Therefore, in this seat belt retractor mounting structure, the bumper 179A of the other vehicle 179 abuts on the center pillar outer panel 180, and a load acts on the center pillar outer panel 180 from the outside in the vehicle width direction (direction of arrow F1 in FIG. 9). Then, the center pillar outer panel 180 is shown in FIG.
As shown by the imaginary line in the vehicle width direction (arrow F2 in FIG. 9).
Direction), the seat belt retractor 17
0 is pushed by the center pillar outer panel 180, moves in the vehicle interior side direction (direction of arrow F3 in FIG. 9), and becomes the position of the imaginary line in FIG. Therefore, the load cannot be efficiently transmitted to the center floor tunnel portion via the floor cross member 178.

In order to improve this, as shown in FIG. 10, a lower reinforcement 184 is installed between the center pillar outer panel 180 and the center pillar inner panel 172, which are substantially on the extension line of the floor cross member 178. A load acting from the outside in the vehicle width direction (direction of arrow F1 in FIG. 10) is transmitted to the floor cross member 178 as a reinforcing member via the lower reinforcement 184 as shown by arrows F4 and F5 in FIG. It is conceivable that the signal is transmitted from the floor cross member 178 to the center floor tunnel portion (not shown).

However, in this case, since it is necessary to dispose the lower reinforcement 184 inside the center pillar outer panel 180, there is a problem that the number of parts increases.

In consideration of the above facts, an object of the present invention is to obtain a seat belt retractor mounting structure capable of efficiently transmitting a load to a center floor tunnel portion through a reinforcing member without increasing the number of parts. .

[0009]

A seatbelt retractor mounting structure according to the present invention as set forth in claim 1 is a center pillar arranged in the vehicle longitudinal direction intermediate portion on both sides of the vehicle body, and a floor panel. A center floor tunnel portion formed in the vehicle width direction middle portion along the vehicle front-rear direction, and a reinforcing member arranged along the vehicle width direction between the lower portion of the center pillar and the center floor tunnel portion, A side sill arranged along the front-rear direction of the vehicle body at a lower portion of both side portions of the vehicle body, and a seat belt retractor attached at substantially the same height as the reinforcing member in the vicinity of a connecting portion of the side sill in the center pillar. It is characterized by that.

A seat belt retractor mounting structure according to a second aspect of the present invention is the seat belt retractor mounting structure according to the first aspect of the present invention, wherein the reinforcing member is disposed on the floor panel along the vehicle width direction. It is characterized by being a floor cross member.

A seat belt retractor mounting structure according to a third aspect of the present invention is the seat belt retractor mounting structure according to the first aspect of the present invention, wherein the reinforcing member is arranged in the seat along the vehicle width direction. It is characterized by being a cross member.

According to a fourth aspect of the present invention, there is provided a seatbelt retractor mounting structure, wherein center pillars are provided on both sides of the vehicle body in a vehicle front-rear direction intermediate portion along a vehicle body vertical direction, and a vehicle width direction intermediate portion of a floor panel. A center floor tunnel portion formed along the front-rear direction of the vehicle body, a seat belt retractor storage portion formed in a vehicle width direction inner side portion of a lower portion of the center pillar, and the seat belt retractor attached to a lower portion of the center pillar. A panel for closing the storage portion; a cross member disposed between the lower part of the center pillar and the lower part of the center pillar on the opposite side of the vehicle body, and connected to the lower part of the center pillar and the lower part of the center pillar on the opposite side; The center pillar is arranged above the cross member along the vehicle width direction, connects the center pillar and the cross member, and connects the center pillar to the center pillar. A reinforcing member which fastened the panel coupling section, is characterized by comprising a seat belt retractor mounted to the seat belt retractor housing portion.

[0013]

According to the seat belt retractor mounting structure of the present invention as set forth in claim 1, when a load acts on the center pillar from the outside in the vehicle width direction, the outside portion of the center pillar in the vehicle width direction abuts on the seat belt retractor. The belt retractor moves inward in the vehicle width direction. As a result, the seat belt retractor moves to the reinforcing member side that is arranged along the vehicle width direction between the lower part of the center pillar and the center floor tunnel part, and the load is transmitted to the center floor tunnel part through the reinforcing member. To do.

In the seat belt retractor mounting structure according to the second aspect, when a load acts on the center pillar from the vehicle width direction outer side, the vehicle width direction outer side portion of the center pillar comes into contact with the seat belt retractor in the center pillar. The seat belt retractor moves inward in the vehicle width direction. As a result, the seat belt retractor moves to the floor cross member side, which is arranged along the vehicle width direction between the lower part of the center pillar and the center floor tunnel part, and the load is passed through the floor cross member to the center floor tunnel part. Communicate to.

In the seat belt retractor mounting structure according to the third aspect, when a load acts on the center pillar from the outside in the vehicle width direction, the outside portion in the vehicle width direction of the center pillar comes into contact with the seat belt retractor in the center pillar. The seat belt retractor moves inward in the vehicle width direction. As a result, the seat belt retractor moves to the seat cross member side provided between the lower portion of the center pillar and the center floor tunnel portion, and transfers the load to the center floor tunnel portion via the seat cross member.

In the seatbelt retractor mounting structure of the present invention as defined in claim 4, when a load acts on the center pillar from the outside in the vehicle width direction, the outside portion of the center pillar in the vehicle width direction contacts the seatbelt retractor, and the seatbelt retractor is seated. The belt retractor moves inward in the vehicle width direction. As a result, the seat belt retractor comes into contact with the panel attached to the lower portion of the center pillar, transfers the load to the cross member through the panel and the reinforcing member, and the center pillar portion and the floor panel on the opposite side of the vehicle from the cross member. Distribute and transmit to.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a seat belt retractor mounting structure according to the present invention will be described with reference to FIGS.

In the figure, the arrow FR indicates the front direction of the vehicle body, the arrow IN indicates the inner direction of the vehicle body, and the arrow UP indicates the upper direction of the vehicle body.

As shown in FIG. 3, an automobile body 10
A front door opening 12 and a rear door opening 14 are formed on both sides of the vehicle, and a center pillar 16 extending in the vehicle body vertical direction is provided between the front door opening 12 and the rear door opening 14. It is arranged. Further, side sills 17 are arranged at the lower portions of both side portions of the body 10 along the front-rear direction of the vehicle body.

As shown in FIG. 1, the center pillar 16
Is composed of a center pillar outer panel 18 forming an outer side portion of the center pillar 16 in the vehicle width direction and a center pillar inner panel 20 forming an inner side portion of the center pillar 16 in the vehicle width direction. The part 22 is formed. The side sill 17 is the side sill 1.
7, a side sill outer panel 24 forming an outer side portion in the vehicle width direction and a side sill inner panel 26 forming an inner side portion in the vehicle width direction of the side sill 17, forming a closed cross-section portion 28 extending in the vehicle body front-rear direction. . The center pillar outer panel 18 and the side sill outer panel 2
4 is integrated.

A floor cross member 30 as a reinforcing member is arranged inside the joint between the center pillar 16 and the side sill 17 in the vehicle width direction along the vehicle width direction. The cross-sectional shape of the floor cross member 30 as viewed from the vehicle width direction is a U-shape with the opening facing downward, and the lower end portion of the front wall portion 30A is bent forward to form a flange 30B. Further, the lower end portion of the rear wall portion 30C is bent rearward to form a flange 30D. These flanges 30
B and the flange 30D are welded to the floor panel 32, and the floor cross member 30 is the floor panel 3
2 and 2 form a closed cross section 34 extending in the vehicle width direction.
An outer edge portion in the vehicle width direction of the floor panel 32 is bent upward to form a flange 32A, and this flange 32A is welded to a lower portion of a side wall portion 26A of the side sill inner panel 26.

An outer end portion of the front wall portion 30A of the floor cross member 30 in the vehicle width direction is bent forward to form a flange 30E, and an outer end portion of the rear wall portion 30C of the floor cross member 30 in the vehicle width direction is It is bent backward to form a flange 30F. These flanges 30E and 30F
Are side walls 26A of the side sill inner panel 26, respectively.
And is welded to the flange 32A of the floor panel 32. Further, a flange 30H is formed on the vehicle width direction outer end of the upper wall portion 30G of the floor cross member 30, and the flange 30H is formed on the side sill inner panel 2.
6 is welded to the upper wall portion 26B.

Although not shown in the drawings, the inner end portion of the floor cross member 30 in the vehicle width direction is connected to a center floor tunnel portion formed in the vehicle width direction middle portion of the floor panel 32 along the vehicle front-rear direction. There is.

Upper wall portion 26 of the side sill inner panel 26
The outer end portion of B in the vehicle width direction is bent upward to form a flange 26C.
The flange 26C is welded to the lower end edge portion 20A of the center pillar inner panel 20. A rectangular seatbelt retractor mounting hole 36 as a seatbelt retractor storage portion is formed in the vicinity of the center pillar inner panel 20 coupled to the side sill 17.

As shown in FIG. 2, a seat belt retractor 38 is provided in the center pillar 16 near the joint with the side sill 17, and an upper wall portion 30 of the floor cross member 30.
The seat belt retractor 38 and the side sill inner panel 26 are mounted at substantially the same height as G
6C overlap amount W is at least 10mm to 20mm
That is all. In addition, the seat belt retractor 38
Is fixed to the upper edge portion 20B of the seatbelt retractor mounting hole 36 of the center pillar inner panel 20 by a bolt 42 and a nut 44 via a bracket 40, and a bolt 48 and a nut 50 via a bracket 46.
By the flange 2 of the side sill inner panel 26
6C and the lower edge 20A of the center pillar inner panel 20
It is fixed to the joint with.

A seat belt 52 is pulled out from the seat belt retractor 38 substantially upward.

Next, the operation of the first embodiment will be described. In the seatbelt retractor mounting structure of the first embodiment, as shown in FIG. 2, the bumper 60A of the other vehicle 60 is
It comes into contact with the center pillar 16 and the load is applied from the outside in the vehicle width direction.
When acting on the center pillar 16, the center pillar outer panel 18 contacts the seat belt retractor 38 in the center pillar 16, and the seat belt retractor 38 moves inward in the vehicle width direction (direction of arrow A in FIG. 2). As a result, the seat belt retractor 38 moves to the floor cross member 30 side, and transfers the load (arrow F in FIG. 2) to the center floor tunnel portion via the floor cross member 30.

Therefore, unlike the prior art, it is not necessary to dispose the lower reinforcement in the center pillar, and the load can be efficiently transmitted to the floor tunnel portion through the floor cross member without increasing the number of parts. You can

In the first embodiment, the example in which the floor cross member 30 is applied as the reinforcing member has been described, but the reinforcing member is provided between the lower part of the center pillar and the center floor tunnel part along the vehicle width direction. Other members arranged may be used.

Next, a second embodiment of the seat belt retractor mounting structure according to the present invention will be described with reference to FIGS.

The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 4, a center floor tunnel portion 52 bulging upward in the vehicle longitudinal direction is formed in the vehicle width direction middle portion of the floor panel 32. Further, a front seat 54 is arranged between the center floor tunnel portion 52 and the center pillar 16.

As shown in FIG. 5, the front seat 54
Is composed of a seat cushion 54A and a seat back 54B, and the seat back 54B is a seat cushion 54A.
The seat connecting rod 56 as a seat cross member provided along the vehicle width direction at the rear end portion is swingable in the front-rear direction (direction of arrow B in FIG. 5).

As shown in FIG. 4, the seat connecting rod 56 is supported by a pair of seat cushion frames 58 fixed to the floor panel 32, and one end portion 56A is inside the seat belt retractor 38 in the vehicle width direction. The other end portion 56B faces the upper portion of the side wall portion 52A of the center floor tunnel portion 52.

Next, the operation of the second embodiment will be described. In the seatbelt retractor mounting structure of the second embodiment, as shown in FIG. 4, the bumper 60A of the other vehicle 60 is
It comes into contact with the center pillar 16 and the load is applied from the outside in the vehicle width direction.
When acting on the center pillar 16, the center pillar outer panel 18 contacts the seat belt retractor 38 in the center pillar 16, and the seat belt retractor 38 moves inward in the vehicle width direction (direction of arrow C in FIG. 4). As a result, the seat belt retractor 38 moves to the seat connecting rod 56 side, and transfers the load (arrow F in FIG. 4) to the center floor tunnel portion 52 via the seat connecting rod 56.

Therefore, unlike the prior art, it is not necessary to dispose the lower reinforcement in the center pillar, and the load is efficiently transmitted to the floor tunnel portion via the seat connecting rod 56 without increasing the number of parts. be able to.

In the second embodiment, the seat connecting rod 56 is applied as the seat cross member, but the seat cross member may be another member arranged in the seat along the vehicle width direction. .

Next, a third embodiment of the seat belt retractor mounting structure according to the present invention will be described with reference to FIGS.

The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

A floor cross member 62 is disposed along the vehicle width direction across the center floor tunnel portion 52, inside the vehicle width direction inner side of the connecting portion with the side sill 17 below the left and right center pillars 16, Both ends of the cross member 62 in the vehicle width direction are connected to the side sill 17.

The floor cross member 62 is composed of a floor cross member upper 61 and a floor cross member lower 63, and has a closed sectional structure extending in the vehicle width direction. The cross-sectional shape of the floor cross member upper 61 as viewed from the vehicle width direction is a hat shape with the opening portion facing downward, and the lower end portion of the front wall portion 61A is bent forward and the flange 6 is formed.
It is set to 1B. The flange 61B is welded to the upper surface of the front end portion of the upper wall portion 63A of the floor cross member lower 63. Rear wall 61 of floor cross member upper 61
The lower end of C is bent rearward to form a flange 61D. The flange 61D is welded to the lower surface of the front end edge portion 66A of the center floor pan 66. A front portion of the upper wall portion 63A of the floor cross member lower 63 is bent downward to form a front wall portion 63B, and a lower end portion of the front wall portion 63B is bent forward to form a flange 63C. This flange 63C is the rear edge 65A of the float floor pan 65.
Is welded to the upper surface of. Floor cross member lower 63
The rear portion of the upper wall portion 63A is bent upward and the rear wall portion 63D is formed.
The upper end of the rear wall 63D is bent rearward to form a flange 63E. This flange 63E
Is welded to the lower surface of the flange 61D of the floor cross member upper 61.

The outer edge portion of the front floor panel 65 in the vehicle width direction is bent upward to form a flange 65B, which is welded to the lower portion of the side wall portion 26A of the side sill inner panel 26. An outer edge portion 66B of the center floor pan 66 in the vehicle width direction is welded to an upper wall portion 26B of the side sill inner panel 26.

As shown in FIG. 8, the seat belt retractor storage portion 9 is provided inside the center pillar 16 in the vehicle width direction.
7 is formed, and a seat belt retractor 38 is inserted into the seat belt retractor storage portion 97 from the seat belt retractor mounting hole 36 of the center pillar inner panel 20. A center pillar reinforcement 68 is disposed between the seat belt retractor 38 and the center pillar outer panel 18.
The center pillar reinforcement 68 has a hat-shaped cross-sectional shape when viewed from the vehicle body vertical direction, and the flanges 68A and 68B formed at the opening edges are formed in the center pillar outer panel 18. Are welded to the inner side surfaces in the vehicle width direction of the stepped portions 18A and 18B formed at the opening edge portion of.

Through holes 20C and 20D are formed near the upper and lower edges of the seat belt retractor mounting hole 36 of the center pillar inner panel 20 near the front and rear ends thereof, and these through holes 20C and 20D are formed in the vehicle width direction. A weld bolt 67 is inserted from the outside. Although not shown, a through hole is similarly formed in the outer peripheral portion of the seat belt retractor mounting hole 36 of the center pillar inner panel 20 below the through hole 20C, and a weld bolt is inserted. ing. In addition, the center pillar inner panel 20
On the inner side of the vehicle in the vehicle width direction, a panel 70 is attached along the center pillar inner panel 20 to close the upper portion of the seatbelt retractor attachment hole 36, and the seatbelt retractor 38 moves to the inner side in the vehicle width direction. When the position shown by the line is reached, the seat belt retractor 38 contacts the panel 70.

As shown in FIG. 7, in the panel 70, the lower end edge portion of the base portion 70A that closes the seatbelt retractor mounting hole 36 is bent inward in the vehicle width direction to form a flange 70B.
It is said that. A base portion 70A is provided at a substantially central portion of the base portion 70A.
A recess 70C for improving the surface rigidity and surface accuracy is formed toward the inside in the vehicle width direction, and the seat belt retractor 38 abuts in this recess 70C. Further, through holes 72 are formed in three corners of the base 70A of the panel 70 except for the lower rear portion of the vehicle body, and the through holes 72 are respectively formed in the through holes 72 shown in FIG. 67 can be inserted.

As shown in FIG. 6, a brace 74 as a reinforcing member is provided along the vehicle width direction on the upper side of the vehicle width direction outer end of the floor cross member 62.

As shown in FIG. 7, the cross-sectional shape of the brace 74 viewed from the vehicle width direction is a hat shape with the opening facing downward, and flanges 74A, 74 are provided at the edge of the opening.
B is formed. A wide portion is formed at an intermediate portion of the rear flange 74B in the vehicle width direction, and a through hole 75 is formed in the wide portion. A seat portion 77 protruding upward is formed by pressing at a portion of the floor cross member upper 61 facing the through hole 75.
The through hole 79 is formed in the seat surface 77 </ b> A of the seat 77.
5 is coaxially provided. A weld nut 81 is fixed to the back side of the seat surface 77A at the same position as the through hole 79. A bolt 83 inserted from the through hole 75 is screwed into the weld nut 81, which allows the brace 74 to move to the floor cross member upper 61.
It is fixed to.

A pair of through holes 76 are formed near the inner end of the upper wall portion 74C of the brace 74 in the vehicle width direction with a seat cushion mounting hole 85 sandwiched therebetween at predetermined intervals in the vehicle width direction. There is. Further, three through holes 77 are arranged and formed in a triangular shape in the vicinity of an inner end portion of the front wall portion 74E of the brace 74 in the vehicle width direction. On the other hand, a U-shaped flange 74D is formed at the vehicle width direction outer end of the brace 74, and both ends of the flange 74D are the flange 74D.
It is connected to A and 74B.

The outer peripheral edge of the base portion 70A of the panel 70 is welded to the outer surface of the flange 74D of the brace 74 in the vehicle width direction. The flange 74D has a through hole 78 coaxial with the through hole 72 of the panel 70. Has been drilled.

As shown in FIG. 8, these through holes 78
A bolt 80 is screwed into a weld bolt 67 projecting from the above, whereby the vehicle width direction outer end portion of the brace 74 is fixed to the center pillar inner panel 20, and the panel 70 is attached to the seat belt retractor mounting hole. Three
It is fastened together at the position where 6 is closed.

As shown in FIG. 7, a pair of through holes 82 are formed in the upper wall portion 61E of the floor cross member upper 61 at a position coaxial with the through hole 76 of the brace 74 with the seat cushion mounting hole 87 interposed therebetween. A weld nut 84 is fixed to the lower surface of the upper wall portion 61E coaxially with the through hole 82. Bolts 86 inserted from the brace 74 side are screwed into these weld nuts 84. In addition, the front wall portion 61 of the floor cross member upper 61
A has three through holes (not shown) formed coaxially with the through holes 77 of the brace 74, and the weld nut 8 is coaxial with the through holes on the back surface of the front wall portion 61A.
4 is fixed. Also, these weld nuts 8
A bolt 86 inserted from the side of the brace 74 is screwed into the bolt 4, and the inner end portion in the vehicle width direction of the brace 74 is fixed to the floor cross member upper 61 by these.

Reference numeral 90 in FIGS. 6 and 8 indicates a quarter panel. Next, the operation of the third embodiment will be described.

In the seat belt retractor mounting structure of the third embodiment, the bumper of the other vehicle abuts the quarter panel 90 and the center pillar 16, and the load is applied from the outer side in the vehicle width direction.
When acting on the center pillar 16, the center pillar outer panel 18 and the center pillar reinforcement 68
Is the seat belt retractor 38 in the center pillar 16.
And the seat belt retractor 38 moves inward in the vehicle width direction.

As a result, the seat belt retractor 38 abuts the panel 70, and the load is transmitted to the floor cross member 62 via the panel 70 and the brace 74, as shown by the phantom line in FIG. As indicated by the arrow in FIG. 5, the floor cross member 62 disperses and transmits to the center pillar portion and the floor panel on the opposite side of the vehicle.

Therefore, there is an excellent effect that the load can be efficiently transmitted to the floor tunnel portion through the reinforcing member without increasing the number of parts.

In the third embodiment, as shown by the phantom line in FIG. 8, the seat belt retractor 38 comes into contact with the panel 70 and stops moving inward in the vehicle width direction. , Quarter panel 9
0, the deformation of the center pillar outer panel 18 and the center pillar reinforcement 68 inward in the vehicle width direction can be reduced.

[0057]

According to the seatbelt retractor mounting structure of the first aspect of the present invention, the center pillars are provided on both sides of the vehicle body in the vehicle front-rear direction intermediate portion along the vehicle body vertical direction, and the floor panel is provided in the vehicle width direction intermediate portion. A center floor tunnel portion formed along the front-rear direction of the vehicle body, a reinforcing member arranged along the vehicle width direction between the lower portion of the center pillar and the center floor tunnel portion, and a vehicle body front-rear direction on the lower portions of both side portions of the vehicle body. Since the side sill arranged along the side sill and the seat belt retractor mounted at approximately the same height as the reinforcing member are provided in the vicinity of the joint between the side sill in the center pillar, increasing the number of parts It has an excellent effect that the load can be efficiently transmitted to the floor tunnel portion via the reinforcing member.

In the seatbelt retractor mounting structure according to the second aspect, since the reinforcing member is the floor cross member arranged along the vehicle width direction on the floor panel, the load is applied to the floor cloth without increasing the number of parts. It has an excellent effect that it can be efficiently transmitted to the floor tunnel portion via the member.

In the seatbelt retractor mounting structure according to the third aspect, the reinforcing member is the seat cross member arranged in the seat along the vehicle width direction. Therefore, the reinforcing member is applied with a load without increasing the number of parts. It has an excellent effect that it can be efficiently transmitted to the floor tunnel portion via the cross member.

According to a fourth aspect of the present invention, there is provided a seatbelt retractor mounting structure, wherein center pillars are provided on both side portions of the vehicle body in a vehicle longitudinal direction intermediate portion, and center pillars are provided in a vehicle width direction intermediate portion of a floor panel. A center floor tunnel portion formed along the direction, a seat belt retractor storage portion formed in the vehicle width direction inner side portion of the lower portion of the center pillar, and a panel attached to the lower portion of the center pillar to close the seat belt retractor storage portion. , A cross member connected between the lower part of the center pillar and the lower part of the center pillar on the opposite side of the vehicle body and connected to the lower part of the center pillar and the lower part of the center pillar on the opposite side, and above the cross member in the vehicle width direction. A reinforcing member that is arranged along the center pillar and the cross member, and that fastens the panel together at the joint with the center pillar; Since the seat belt retractor mounted in the belt retractor storage section is provided, the excellent effect that the load can be efficiently transmitted to the floor tunnel section through the reinforcing member without increasing the number of parts. Have.

[Brief description of drawings]

FIG. 1 is a perspective view of a seatbelt retractor mounting structure according to a first embodiment of the present invention as seen from an obliquely rear side inside a vehicle body.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a schematic side view showing a vehicle body to which the seat belt retractor mounting structure of the first embodiment according to the present invention is applied.

FIG. 4 is a sectional view corresponding to FIG. 2, showing a seat belt retractor mounting structure of a second embodiment according to the present invention.

FIG. 5 is a schematic side view showing a vehicle body to which a seat belt retractor mounting structure according to a second embodiment of the present invention is applied.

FIG. 6 is a perspective view of a seat belt retractor mounting structure according to a third embodiment of the present invention, as viewed from diagonally inside and behind the vehicle body.

FIG. 7 is an exploded perspective view showing main components of a seatbelt retractor mounting structure of a third embodiment according to the present invention, as seen from a vehicle interior diagonally rear side.

8 is a sectional view taken along line 8-8 of FIG.

FIG. 9 is a sectional view corresponding to FIG. 2 showing a seat belt retractor mounting structure of a conventional example.

FIG. 10 is a cross-sectional view showing another conventional seat belt retractor mounting structure corresponding to FIG.

[Explanation of symbols]

10 body 16 center pillar 17 side sill 18 center pillar outer panel 20 center pillar inner panel 30 floor cross member (reinforcing member) 32 floor panel 38 seat belt retractor 52 center floor tunnel portion 54 front seat 56 seat connecting rod (seat cross member) 62 floor Cross member 70 Panel 74 Brace (reinforcing member) 97 Seat belt retractor storage

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masao Inoue 1 Toyota Town, Toyota City, Aichi Prefecture, Toyota Motor Co., Ltd. (72) Inventor Shunsuke Takai 1, Toyota Town, Aichi Prefecture, Toyota Motor Co., Ltd.

Claims (4)

[Claims] 1. A center pillar arranged in the vehicle longitudinal direction middle portion on both sides of the vehicle body along the vehicle body vertical direction, and a center floor tunnel formed in the vehicle width direction intermediate portion of the floor panel along the vehicle longitudinal direction. A portion, a reinforcing member arranged along the vehicle width direction between the lower portion of the center pillar and the center floor tunnel portion, side sills arranged along the vehicle front-rear direction at the lower portions of both side portions of the vehicle body, A seat belt retractor attached to the side pillar in the center pillar in the vicinity of a joint with the side sill at substantially the same height as the reinforcing member,
A seatbelt retractor mounting structure, characterized in that 2. The seat belt retractor mounting structure according to claim 1, wherein the reinforcing member is a floor cross member disposed on the floor panel along the vehicle width direction. 3. The seatbelt retractor mounting structure according to claim 1, wherein the reinforcing member is a seat cross member arranged in the seat along the vehicle width direction. 4. A center pillar arranged in the vehicle longitudinal direction middle portion on both sides of the vehicle body along the vehicle body vertical direction, and a center floor tunnel formed in the vehicle width direction intermediate portion of the floor panel along the vehicle longitudinal direction. A portion, a seatbelt retractor storage portion formed in a vehicle width direction inner portion of a lower portion of the center pillar, a panel attached to a lower portion of the center pillar to close the seatbelt retractor storage portion, and a lower portion of the center pillar. A cross member arranged between the lower part of the center pillar on the opposite side of the vehicle body and connected to the lower part of the center pillar and the lower part of the center pillar on the opposite side, and arranged above the cross member in the vehicle width direction. A reinforcing member for connecting the center pillar and the cross member and jointly tightening the panel at a joint portion with the center pillar, and the seat belt. A seatbelt retractor mounting structure comprising: a seatbelt retractor mounted in a retractor retractor housing.