JP6506345B2 - Body side structure - Google Patents

Description

  The present invention relates to a mounting structure of a load transfer member that transmits a load input from a vehicle body side to the inside of a vehicle.

  According to Patent Document 1, in a pillarless vehicle in which one opening is formed continuously to the side of the vehicle body, the passenger operates the seat belt by the occupant as compared to the case where the seat belt of the front seat is passed through the inside of the front door. A structure with improved properties is described.

Patent No. 4596301 gazette

  In a conventional pillarless vehicle, when a load transfer member is provided inside the door to transmit the collision load from the side of the vehicle to the inside of the vehicle to protect the occupant, it is necessary to lay out so as not to interfere with the seat belt passing through the inside of the door. is there.

  The present invention has been made in view of the above problems, and an object thereof is to appropriately lay out a load transmitting member for transmitting a load input from a side portion of a vehicle body to the inside of a vehicle so as not to interfere with a seat belt to protect occupants. It is to realize a vehicle body side structure which can secure performance.

In order to solve the above problems and achieve the object, the vehicle body side structure of the present invention is provided with a load transfer member for transferring a load input from the side to the inside of the door, and a belt winding device The seat belt which is fed out from the inside of the door is exposed to the vehicle interior through the inside of the door, and the seat belt passing through the inside of the door overlaps the load transfer member in the vehicle width direction. , avoiding portion is provided to avoid the seat belt, said load transmitting member is located overlaps a rigid member in the vehicle width direction for reinforcing mounted over the vertical direction of the vehicle body on the rear side of the vehicle body at the interior side of the door It is characterized in that it is arranged to be in a relationship .

  According to the present invention, it is possible to appropriately lay out a load transfer member for transferring a load input from the side portion of the vehicle body to the inside of the vehicle inside the door so as not to interfere with the seat belt, and secure occupant protection performance.

The figure which looked at the door of the vehicle of this embodiment from the vehicle outer side, and the figure which shows the state which removed the outer panel of (a). The figure which looked at the door of the vehicle of this embodiment seen from vehicle interior (a), figure (b) which shows the state which removed the door trim of (a), and enlarged view (c) of 2b part of (b). The enlarged view (a) which looked at the door trim corresponding to the attachment position of the 1st load transfer member of this embodiment from front side (car inner side), ii sectional drawing (b) of (a), ii-ii sectional drawing (C), iii-iii sectional drawing (d). FIG. 6A is an enlarged view of the portion 4a of FIG. 4A when the door trim of the present embodiment is viewed from the back side (vehicle outer side), and FIG. 4B shows a state in which the first load transfer member is not attached. It is an enlarged view of 4a part of (a), and a figure showing the state where the 1st load transfer member was attached, (c), it is an iv-iv sectional view (d) of (c). It is an external view of the 1st load transfer member of this embodiment. It is the enlarged view which looked at the inner panel corresponding to the attachment position of the 2nd load transfer member of this embodiment from the vehicle inner side. The enlarged view (a) which looked at the door trim corresponding to the attachment position of the 2nd load transfer member of this embodiment from the inner side of a car, vv sectional view (b) of (a), vi-vi sectional view (c) And (d) shows the door trim in a state in which the second load transfer member is attached. It is an external view of the 2nd load transfer member of this embodiment.

  Hereinafter, a vehicle body side structure of an embodiment according to the present invention will be described with reference to the attached drawings.

  Door Structure First, an embodiment in which the vehicle body side structure of the present invention is applied to a door of an automobile will be described with reference to FIGS.

  FIG. 1 is a view (a) of a door of a vehicle according to this embodiment viewed from the outside of the vehicle and a view (b) showing a state where the outer panel of (a) is removed. FIG. 2 is a view of the door of the vehicle according to the embodiment viewed from the inside of the vehicle (a), a view showing a state where the door trim is removed in (a), and an enlarged view (c) ).

  In the present embodiment, a structure in which a load transfer member is attached to a passenger's seat side door of a car door is described, but the present invention is not limited to this, and the left and right sides of the driver's seat side and the rear seat side It is applicable also to the door (including the slide door) of

  The vehicle according to the present embodiment is a so-called pillarless vehicle in which a center pillar is not provided between a front door and a rear door for opening and closing an opening of a vehicle body side communicating inside and outside the vehicle interior. In this state, one continuous opening is formed on the side of the vehicle body to access both the front seat and the rear reel.

  The door 1 of the present embodiment is applied to, for example, a door on the passenger side such as a mini car. The door 1 includes an outer panel 2 outside the vehicle width direction (vehicle outside) and an inner panel 3 inside the vehicle width direction (vehicle inside). A window frame 4 is formed on the upper portion of the inner panel 3. A beam member 5 extending in the width direction of the panel surface (the front-rear direction of the vehicle body) is provided on the outer side of the inner panel 3. The beam member 5 is a hollow cylindrical elongated member that receives a collision load input from the side portion of the vehicle body, and extends from the front end of the inner panel 3 toward the rear end. The beam attachment portion 5a connected to the front end portion of the beam member 5 is attached to the inner panel 3 and attached to the reinforcing rigid member 7 by the beam attachment portion 5b connected to the rear end portion.

  In addition, a door trim 6 is mounted on the inner side of the inner panel 3. Further, a rigid member 7 is attached to the vehicle body rear side of the inner panel 3 and the window frame portion 4 in the vertical direction of the vehicle body. The rigid member 7 is provided to give the rear of the door the same rigidity as a conventional center pillar.

  At the lower rear end of the inner panel 3 at the inner side of the vehicle, there is provided a belt winding device 9 called an ELR (Emergency Locking Retractor) capable of winding and feeding a seat belt 8 for restraining an occupant on a seat. There is. The belt winding device 9 normally operates to wind the seat belt so as to be able to be drawn out by the user, and when acceleration exceeding a predetermined value such as sudden braking or collision acts on the vehicle body or seat belt, the seat belt Fix so that it is not driven out.

  The seat belt 8 delivered from the belt winding device 9 is bridged by a suspension 10 provided at the upper end of the rear end of the window frame 4 of the inner panel 3 and extends downward and a belt fixing portion at the lower rear end It is fixed to 11. The seat belt portion 8a extending upward from the belt winding device 9 is interposed between the inner panel 3 and the door trim 6 and is not visible from the inside of the vehicle, and the seat belt portion 8b extending downward from the suspension portion 10 is the door trim 6 It can be handled by a passenger exposed to the inside of the vehicle and seated on a seat.

  A first load transfer member 20 is provided in a space between the inner panel 3 and the door trim 6. The first load transfer member 20 is attached to the inside (rear side) of an armrest portion 6 a of the door trim 6 that bulges inward of the vehicle. The first load transfer member 20 is provided at the rear end of the inner panel 3 and in the vicinity of the center in the vertical direction and in the vicinity of the elbow of the occupant seated on the seat. The first load transfer member 20 prevents the door panels 2 and 3 and the door trim 6 from being locally deformed and displaced inward by the collision load from the vehicle body side being locally concentrated, and the entire panel is It has a function as a side bump pad that transmits the load to the inside of the vehicle. The first load transfer member 20 is displaced inward with the outer panel 2 and the inner panel 3 when a collision load is input from the side portion of the vehicle body, and is interposed between the occupant and the inner panel 3 to apply the load. To communicate. The first load transfer member 20 is made of, for example, an elastically deformable resin molded part.

  Further, a second load transfer member 40 is provided below the first load transfer member 20 and in the vicinity of the belt winding device 9 on the inner panel surface of the inner panel 3. The second load transfer member 40 is attached at a position where the front end portion of the beam member 5 provided on the panel surface on the outer side of the inner panel 3 is fixed and provided at a position corresponding to the waist of the occupant seated in the seat. Be Similarly to the first load transfer member 20, the second load transfer member 40 also transfers the load for transferring the collision load from the vehicle body side received by the beam member 5 to the inner side as a whole panel. It has a function as a protruding pad. The second load transfer member 40 is made of, for example, an elastically deformable resin molded part.

  <Detailed Configuration of First Load Transfer Member 20> Next, the detailed configuration of the first load transfer member 20 of the present embodiment will be described with reference to FIGS. 3 to 5. FIG.

  FIG. 3 is an enlarged view (a) of the door trim corresponding to the mounting position of the first load transfer member of the present embodiment as viewed from the front side (inside of the vehicle); FIG. -Ii sectional drawing (c), iii-iii sectional drawing (d). FIG. 4 is an enlarged view of a portion 4a of the door trim of the present embodiment as viewed from the back side (vehicle outer side), showing the state in which the first load transfer member is not attached. (B) It is an enlarged view of 4a part of (a), and a figure which shows the state to which the 1st load transfer member was attached, (v), iv-iv sectional view (d) of (c). FIG. 5 is an external view of a first load transfer member of the present embodiment.

  As shown in FIG. 3, the first load transfer member 20 is in a positional relationship overlapping the seat belt portion 8 a extending in the vertical direction inside the door trim 6 as viewed from the vehicle width direction. Therefore, the first load transfer member 20 is provided with an avoidance portion 21 for avoiding interference with the seat belt 8. The evasion portion 21 has a concave cross-sectional shape that is open to the vehicle exterior in a state of being attached to the door trim 6. Further, the avoiding portion 21 has first and second projecting portions 22 and 23 projecting outward on both sides in the width direction of the door with respect to the bottom portion 21a and the bottom portion 21a, and the bottom portion 21a and the first and second portions A portion 21 b where the projecting portions 22 and 23 intersect each other is formed in a curved surface shape. This prevents the seat belt 8 from interfering with the first load transfer member 20 in the vehicle width direction (seat belt surface) and in the longitudinal direction of the vehicle body (both side edges of the seat belt). In particular, since the portion 21b where the bottom portion 21a of the avoidance portion 21 and the first and second protrusions 22 and 23 intersect is formed in a curved surface shape, the seat belt 8 repeatedly contacts the first load transfer member 20. It is possible to suppress the possible damage and to relieve the stress concentration on a specific portion of the first load transfer member 20 due to the collision load from the vehicle body side. Further, by forming the avoiding portion 21 in a concave shape, the occupant protection performance can be ensured without reducing the size in the vehicle width direction while avoiding the interference with the seat belt 8.

  In addition, since the first and second protrusions 22 and 23 are provided on both sides in the width direction of the door with respect to the avoidance portion 21, the collision load from the side portion of the vehicle input from the inner panel 3 It can be transmitted to the inside of the car in a well balanced manner That is, when the protrusion is provided only on one side, the load is unbalancedly transmitted in the longitudinal direction of the vehicle body, but this can be prevented.

  In addition, the first load transfer member 20 is mounted on the door trim 6 at at least three locations of the first, second, and third attachment holes 24, 25, 26 so as to straddle the first and second protrusions 22, 23. It is attached. As a result, when the collision load is input from the side portion of the vehicle body, the first load transfer member 20 can be prevented from being inclined and displaced, and stable load transfer can be performed.

  Specifically, the first load transfer member 20 has a first attachment hole 24 and a second attachment hole 25 provided on both sides of the first and second protrusions 22 and 23, and a concave shape of the avoidance portion 21. Third mounting holes 26 provided in the portions are fixed to the respective mounting portions 61, 62, 63 of the door trim 6 by mounting members such as screws and clips. Furthermore, the first load transfer member 20 is provided with fourth and fifth attachment holes 29 provided in the first and second extensions 27 and 28 extending downward from the first and second protrusions 22 and 23. , 30 are fixed to the respective attachment portions 64, 65 of the door trim with screws or the like. The back side (outside of the vehicle) of the portion where the avoidance portion 21 of the first load transfer member 20 and the first and second protrusions 22 and 23 are formed corresponds to the arm rest portion 6a bulging inward of the vehicle. It forms a space.

  Further, the first load transfer member 20 is disposed in such a positional relationship as to overlap with the rigid member 7 provided in the vertical direction at the rear of the inner panel 3 and the window frame 4 as viewed from the vehicle width direction. Thus, the first load transfer member 20 and the rigid member 7 receiving a large collision load from the side portion of the vehicle are in an overlapping positional relationship in the vehicle width direction, so that load transfer can be reliably performed. Can. Further, the first load transfer member 20 is in such a positional relationship as to overlap with the arm rest portion 6 a of the door trim 6 that bulges inward of the vehicle as viewed in the vehicle width direction. Thus, the first load transfer member 20 can be disposed by effectively utilizing the bulging space of the armrest portion 6a of the door trim 6.

  As described above, the first load transfer member 20 is provided with the avoidance portion 21 that does not interfere with the seat belt 8 inside the door, thereby reducing the size in the vehicle width direction while avoiding the interference with the seat belt 8 Thus, it is possible to realize the vehicle body side structure capable of securing the occupant protection performance against the collision load from the vehicle body side without being performed.

  <Detailed Configuration of Second Load Transfer Member 40> Next, the detailed configuration of the second load transfer member 40 of the present embodiment will be described with reference to FIGS. 6 to 8. FIG.

  FIG. 6 is an enlarged view of the inner panel corresponding to the mounting position of the second load transfer member of the present embodiment as viewed from the inside of the vehicle. FIG. 7 is an enlarged view (a) when the door trim corresponding to the mounting position of the second load transfer member of the present embodiment is viewed from the inside of the vehicle, (v) a cross-sectional view (b) of (a), a vi-vi cross section It is a figure (d) which sees through the door trim in the state where the figure (c) and the 2nd load transfer member were attached. FIG. 8 is an external view of a second load transfer member of the present embodiment.

  The second load transfer member 40 is provided adjacent to the belt winding device 9 provided at the lower rear of the inner panel 3 and has a convex cubic outer shape on the inner side of the vehicle. The second load transfer member 40 has a positional relationship so as to overlap the beam member 5 (including the beam attachment portion 5b connected to the rear end portion) provided on the vehicle outer side of the inner panel 3 as viewed in the vehicle width direction. Will be placed. As described above, since the beam member 5 extending in the width direction of the inner panel 3 and the second load transfer member 40 overlap in the vehicle width direction, the collision load from the side portion of the vehicle received by the beam member 5 Can be reliably transmitted to the vehicle interior through the second load transfer member 40.

  Inside the concave shape in which one surface of the second load transfer member 40 is open, a hollow cylindrical central portion 42 projecting from the bottom portion 41 to the opening side, and from the central portion 42 to the side walls 43, 44, 45, 46 The ribs 47, 48, 49, 50 are radially formed. Further, in the portion 57 where the side wall 43 and the side wall 46 intersect, the portion 58 where the side wall 43 and the side wall 44 intersect, and the portion 59 where the side wall 45 and the side wall 46 intersect, a concave curved shape extends in the depth direction. Thereby, the rigidity of the second load transfer member 40 in the load input direction is enhanced.

  Also, three out of the four side walls 43, 44, 45, 46 of the second load transfer member 40 are formed with sixth to eighth extension portions 51, 52, 53 extending outward, respectively. Sixth to eighth attachment holes 54, 55, 56 are formed in the extensions 51, 52, 53, respectively. Further, edge portions 51a, 52a, 53a are formed in the extension portions 51, 52, 53, respectively, which rise from the peripheral portion toward the opening side. Further, the first through third attachment holes 54, 55, 56 of the second load transfer member 40 are arranged at an interval of 90 ° so as to form a triangle when they are connected by a straight line.

  Thus, by forming the central portion 42 and the ribs 47, 48, 49, 50 in the second load transfer member 40, the rigidity of the second load transfer member 40 is enhanced, and the collision load from the side portion of the vehicle body The variation in shape due to the deformation of the second load transfer member 40 is reduced. Therefore, the collision load from the vehicle body side can be received in a well-balanced manner and reliably transmitted to the vehicle interior.

  The sixth through eighth mounting holes 54, 55, 56 of the second load transfer member 40 are the sixth through eighth of the door trim 6, respectively, in a state where the second load transfer member 40 is in contact with the flat portion 3a formed in the inner panel 3. It fixes to the attachment parts 70, 71, and 72 of these with attachment members, such as a screw and a clip. As described above, by mounting the second load transfer member 40 so as not to tilt, it is possible to receive the collision load from the side portion of the vehicle body in a well-balanced manner and reliably transmit it to the vehicle interior.

  Further, the second load transfer member 40 is supported only by the door trim 6 at three points of sixth to eighth attachment holes 54, 55, 56 which are not arranged in a straight line. As a result, the second load transfer member 40 does not rotate around one mounting hole when a collision load is input from the side of the vehicle body, and the collision load from the side of the vehicle body is received in a well-balanced manner. Can be transmitted to.

  In addition, if the second load transfer member 40 overlaps the beam member 5 in the vehicle width direction, the size in the vehicle width direction becomes large. Therefore, the size in the vehicle width direction is maintained while maintaining the conventional mounting rigidity. In order to reduce the size, it is necessary to use a more rigid material than in the past. In order to maintain the mounting rigidity, it is desirable to join the second load transfer member 40 to the door trim 6 by a method such as welding, but the door trim 6 is made of a non-rigid material as in the prior art Therefore, welding is difficult. For this reason, the second load transfer member 40 is attached to the door trim 6 by a non-welding attachment member. As a result, the second load transfer member 40 can be attached to the door trim 6 while maintaining the conventional rigidity, and the assembly operation can be facilitated.

  Incidentally, between the inner panel 3 and the outer panel 2 corresponding to the portion to which the second load transfer member 40 is attached, more specifically between the inner panel 3 and the rigid member 7, both panels 3 and 7 in the vehicle width direction A connecting bracket 12 is provided so that deformation of the outer panel 2 and the rigid member 7 due to a collision load from the side portion of the vehicle body can be reliably transmitted to the inner panel 3 through the bracket 12. As a result, it is possible to reduce the free running distance until the outer panel 2 is displaced by the collision load from the side portion of the vehicle body and reach the inner panel 3 so that load transmission can be reliably performed early.

  As described above, by attaching the second load transfer member 40 to the inside of the door so as to overlap with the beam member 5 in the vehicle width direction, the vehicle body side structure capable of efficiently transmitting the load to the vehicle interior Can be realized.

  The embodiment described above is an example as a realization means of the present invention, and the present invention can be applied to a modification or modification of the following embodiment without departing from the scope of the present invention.

  It goes without saying that the vehicle body side structure of the present embodiment can also be applied to other vehicles than automobiles.

[Summary of the embodiment]
<First aspect>
A load transfer member 20 for transferring a load input from the side to the inside of the door 1 is provided inside the door 1, and the seat belt 8 fed from the belt winding device 9 is exposed inside the vehicle through the inside of the door 1. Body side structure,
A seat belt 8a passing through the inside of the door 1 overlaps the load transfer member 20 in the vehicle width direction,
The load transfer member 20 is provided with an avoidance portion 21 for avoiding the seat belt.

  According to the first aspect, by providing the load transfer member 20 with the avoidance portion 21 that does not interfere with the seat belt 8 inside the door, the size in the vehicle width direction can be reduced while avoiding the interference with the seat belt 8. The occupant protection performance against the load input from the vehicle body side can be secured without reduction.

<Second aspect>
In the first aspect, the load transfer member 20 has first and second protrusions 22 and 23 that project outward on both sides in the width direction of the door with respect to the avoidance portion 21.

  According to the second aspect, the load from the vehicle body side portion input from the inner panel 3 can be transmitted to the vehicle interior in a well-balanced manner in the vehicle longitudinal direction. That is, when the protrusion is provided only on one side, the load is unbalancedly transmitted in the longitudinal direction of the vehicle body, but this can be prevented.

<Third aspect>
In the second aspect, the load transfer member 20 is attached to the door trim 6 by at least the first, second, and third attachment portions 24, 25, 26 so as to straddle the first and second protrusions 22, 23. Connected

  According to the third aspect, the load transfer member 20 can be prevented from being inclined and displaced when a load is input from the side portion of the vehicle body, and stable load transfer can be performed.

<Fourth aspect>
In any of the first to third aspects, the avoiding portion 21 has a concave shape in which a portion 21b where the bottom portion 21a intersects the first and second projecting portions 22 and 23 is formed in a curved shape. Have.

  According to the fourth aspect, the seat belt 8 is prevented from interfering with the load transfer member 20 in the vehicle width direction (seat belt surface) and the longitudinal direction of the vehicle body (both side edges of the seat belt). In particular, since the portion 21b where the bottom portion 21a of the avoidance portion 21 and the first and second protrusions 22 and 23 intersect is formed in a curved shape, damage due to the seat belt 8 repeatedly contacting the load transfer member 20 In addition, it is possible to reduce the stress concentration on a specific portion of the load transfer member 20 due to the load from the vehicle body side. Further, by forming the avoiding portion 21 in a concave shape, the occupant protection performance can be ensured without reducing the size in the vehicle width direction while avoiding the interference with the seat belt 8.

<Fifth aspect>
In any one of the first to fourth aspects, the load transfer member 20 is disposed so as to overlap with the reinforcing rigid member 7 provided inside the door 1 in the vehicle width direction.

  According to the fifth aspect, the load transfer member 20 is configured to be able to reliably transfer the load by overlapping the reinforcing rigid member 7 receiving a large load at the side collision in the vehicle width direction. Can.

<Sixth aspect>
In any one of the first to fifth aspects, the load transfer member 20 has a positional relationship overlapping in the vehicle width direction with the arm rest 6a of the door trim 6 attached to the inner panel 3 of the door 1 and bulging inward of the vehicle. Arranged as.

  According to the sixth aspect, the load transfer member 20 can be disposed by effectively utilizing the bulging space of the armrest portion 6a of the door trim 6.

DESCRIPTION OF SYMBOLS 1 ... Door 2 ... Outer panel 3 ... Inner panel 5 ... Beam member 5a, 5b ... Beam attachment part 6 ... Door trim 6a ... Armrest part 7 ... Rigid member 8 for reinforcement ... Seat belt 9 ... ELR (belt winding device)
DESCRIPTION OF SYMBOLS 10 Suspension part 11 Belt fixing part 12 Bracket 20 1st load transfer member 21 Avoidance part 22, 23 1st, 2nd protrusion part 24, 25, 26, 29, 30 1st, Second, third, fourth and fifth attachment holes 27, 28 ... first and second extension portions 40 ... second load transfer members 42 ... central portions 47, 48, 49, 50 ... ribs 51, 52 , 53 ... sixth, seventh, eighth extension 54, 55, 56 ... sixth, seventh, eighth mounting hole 61, 62, 63, 64, 65 ... first, second, third, Fourth and fifth mounting portions 70, 71, 72 ... sixth, seventh, and eighth mounting portions

Claims (6)

A load transfer member is provided inside the door for transferring a load input from the side to the inside of the vehicle, and a vehicle body side structure in which the seat belt delivered from the belt winding device is exposed inside the vehicle through the inside of the door. There,
A seat belt passing inside the door overlaps the load transfer member in the vehicle width direction,
The load transfer member is provided with an avoidance portion for avoiding the seat belt ,
The load transfer member is disposed in a positional relationship overlapping in the vehicle width direction with a reinforcing rigid member attached across the vehicle body in the vehicle body vertical direction on the vehicle inner side of the door. Body side structure.   2. The vehicle body side structure according to claim 1, wherein the load transfer member has first and second protrusions which project outward on both sides in the width direction of the door with respect to the avoidance portion.   The vehicle body side according to claim 2, wherein the load transfer member is connected to the door trim at at least first, second and third attachment portions so as to straddle the first and second protrusions. Part structure. The vehicle body side structure according to claim 2 or 3 , wherein the avoidance portion has a concave shape in which a portion where the bottom portion intersects the first and second protrusions is formed in a curved shape. . 5. The load transfer member according to any one of claims 1 to 4 , wherein the load transfer member is disposed in an overlapping positional relationship in the vehicle width direction with an armrest bulging inward of a door trim attached to an inner panel of the door. The vehicle body side structure according to any one of the preceding claims. A beam member extending in the longitudinal direction of the vehicle body;
  The rigid member is attached to the vehicle body rear side of the inner panel of the door in the vertical direction of the vehicle body,
  The front end of the beam member is attached to the inner panel,
  The vehicle body side structure according to any one of claims 1 to 5, wherein a rear end portion of the beam member is attached to the rigid member.

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