JP6405921B2 - Body structure - Google Patents

Description

  The present invention relates to a vehicle body structure having a gate opening that is opened and closed by a tailgate.

A vehicle having a gate opening that is opened and closed by a flip-up tailgate is provided.
Patent Document 1 discloses a vehicle body structure of this type of vehicle, a roof back member that is a member that extends in the vehicle width direction at the rear end of the roof and connects upper rear portions of the left and right side structures, and an extension of the roof back member. What is provided with the roof back reinforcement as a reinforcement member provided in the both ends of a present direction is shown.
In the vehicle body structure, a seat belt retractor and a tailgate hinge mechanism are attached to the roof back reinforcement.

Japanese Patent No. 5585435

In the above prior art, since the load from the seat belt and the hinge mechanism is input to the roof back reinforcement, it is possible to improve the strength at the joint portion between the roof back reinforcement, the roof back member, and the side structure. There is a demand, and simply increasing the strength increases the weight.
On the other hand, from the viewpoint of improving fuel consumption, it is also important to reduce the weight of the vehicle.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle body structure that is advantageous in securing the strength of the structural portion that connects the upper rear portions of the left and right side structures and reducing the weight. .

In order to achieve the above object, the invention according to claim 1 is characterized in that left and right brackets projecting inward in the vehicle width direction on the rear portions of the upper portions of the left and right side structures, respectively, and extending in the vehicle width direction, A rear roof rail inner for connecting the bracket from below, and both ends of the extending direction of the rear roof rail inner exposed at the inside of the left and right brackets in the vehicle width direction and the left and right brackets from above; Left and right hinge reinforcements provided with a child seat tether attachment portion and a tailgate attachment portion, and a rear roof rail outer extending in the vehicle width direction and connecting the rear roof rail inner and the left and right hinge reinforcements from above , Wherein both ends of the rear roof rail outer in the extending direction are left The hinge reinforcement is overlapped and joined to the inner side in the vehicle width direction of the hinge reinforcement from the upper side, and the outer sides of the left and right hinge reinforcements on the outer side in the vehicle width direction outside the both ends in the extending direction of the rear roof rail outer. The part is overlapped and joined to the left and right brackets from above.
According to a second aspect of the present invention, a gate opening is located behind the rear roof rail outer and the rear roof rail inner, and the width of the rear roof rail outer in the vehicle front-rear direction is smaller than the width of the rear roof rail inner in the vehicle front-rear direction. The rear roof rail outer is arranged close to the front of the rear roof rail inner in the vehicle front-rear direction.

According to the first aspect of the present invention, since the rear roof rail inner and the left and right hinge reinforcements are connected to the left and right brackets in a wide range, the left and right side structures, the rear roof rail inner, and the left and right hinge reinforcements It is advantageous in securing the mounting strength between them.
Therefore, the above-mentioned strength can be ensured even if both ends in the extending direction of the rear roof rail outer are not directly joined to the side structure, and the dimension in the extending direction of the rear roof rail outer can be shortened, so the rear roof rail outer is downsized. This is advantageous in terms of weight and weight.
Therefore, it is advantageous in securing the strength of the structural portion that connects the rear portions of the upper portions of the left and right side structures and reducing the weight.
According to invention of Claim 2, the harness for electrical components can be arrange | positioned using the space formed in the location above the vehicle rear side of the rear roof rail inner behind the rear roof rail outer, This is advantageous in facilitating handling.
Further, since the size of the rear roof rail outer in the vehicle front-rear direction can be shortened, it is more advantageous in reducing the size and weight of the rear roof rail outer.

It is the perspective view which looked at the vehicle body from diagonally backward. It is a perspective view which shows a left-right bracket and a rear roof rail inner. FIG. 5 is a perspective view showing a state in which left and right hinge reinforcements are connected to both ends in the extending direction of the rear roof rail inner and left and right brackets. FIG. 5 is a perspective view showing a state in which a rear roof rail outer is connected to a rear roof rail inner and left and right hinge reinforcements. It is a perspective view of a hinge reinforcement. It is a figure which shows the positional relationship of a rear roof rail inner and a rear roof rail outer, and the head of the passenger | crew who seated on the rear seat.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a vehicle body 14 of a vehicle 12 having a gate opening 10 that is opened and closed by a flip-up tailgate (not shown) as viewed from the rear.
In the present specification, the left-right direction is defined in a state in which the front is viewed from the rear of the vehicle 12. In the figure, arrow Fr indicates the front of the vehicle 12, arrow Rr indicates the rear of the vehicle 12, arrow L indicates the left of the vehicle 12, arrow R indicates the right of the vehicle 12, and arrow Up indicates The upper side of the vehicle 12 is shown, and the arrow Dn shows the lower side of the vehicle 12.

  As shown in FIGS. 1 to 5, the vehicle body 14 includes left and right side structures 16, left and right brackets 18, a rear roof rail inner 20, left and right hinge reinforcements 22, and a rear roof rail outer 24. Has been.

As shown in FIG. 1, the left and right side structures 16 constitute the left and right sides of the vehicle body 14, and include a front pillar 16A, a center pillar 16B, a rear pillar 16C, a roof pillar 16D, a side sill 16E, and the like. ing.
A roof 17 is provided between the left and right roof pillars 16D, and a floor panel 19 is provided between the left and right side sills 16E.

  As shown in FIG. 2, the left and right brackets 18 project from the rear portions of the upper portions of the left and right side structures 16 constituting the vehicle body 14 inward in the vehicle width direction.

As shown in FIG. 2, the rear roof rail inner 20 extends in the vehicle width direction and connects the left and right brackets 18 from below.
In a state where the left and right brackets 18 are connected from below by the rear roof rail inner 20, the left and right brackets 18 are exposed upward, and the rear roof rail inner 20 is exposed upward inside the left and right brackets 18 in the vehicle width direction. ing.
As shown in FIG. 6, the rear roof rail inner 20 includes a main body portion 2002 extending in the vehicle width direction, and a flange portion 2004 connected to both sides of the main body portion 2002 in the front-rear direction of the vehicle 12 and extending in the vehicle width direction. I have.

As shown in FIG. 3, the left and right hinge reinforcements 22 have both ends 2010 (see FIG. 2) in the extending direction of the rear roof rail inner 20 exposed upward inside the left and right brackets 18 in the vehicle width direction and the left and right hinges 22. The bracket 18 is connected from above.
With the left and right hinge reinforcements 22 connecting the both ends 2010 in the extending direction of the rear roof rail inner 20 and the left and right brackets 18, the upper surfaces of the left and right hinge reinforcements 22 are exposed upward. The reinforcement 22 has an inner portion 2202 and an outer portion 2204 in the vehicle width direction exposed upward.
More specifically, the left and right hinge reinforcements 22 and the left and right brackets 18 are joined by overlapping the outer portions 2204 of the left and right hinge reinforcements 22 in the vehicle width direction so as to overlap the left and right brackets 18 from above. It is made in.
Further, the left and right hinge reinforcements 22 and the rear roof rail inner 20 are connected by overlapping the inner portions 2202 of the left and right hinge reinforcements 22 in the vehicle width direction so as to overlap and join the rear roof rail inner 20 from above. Yes.

As shown in FIG. 5, the left and right hinge reinforcements 22 are provided with a child seat tether attachment portion 26 and a tailgate attachment portion 28.
The child seat tether attachment portion 26 is a portion to which a tip of a tether provided at an upper portion of a child seat (not shown) installed in the rear seat is connected, and has a weld nut 2602 provided in the hinge reinforcement 22. Yes.
The child seat is an ISO-FIX type child seat standardized by the International Organization for Standardization.
The tailgate attachment portion 28 is a portion to which a hinge mechanism (not shown) of the tailgate that opens and closes the gate opening 10 is attached, and has a weld nut 2802 provided on the hinge reinforcement 22.
Therefore, a load is input to the hinge force 22 from the child seat through the tether when the vehicle 12 collides, and a load is input from the hinge mechanism when the tailgate is opened and closed.
Therefore, the hinge reinforcement 22 is formed of a thick metal plate.

As shown in FIG. 4, the rear roof rail outer 24 extends in the vehicle width direction and connects the rear roof rail inner 20 and the left and right hinge reinforcements 22 from above.
As shown in FIG. 6, the rear roof rail outer 24 is connected to a main body portion 2402 that extends in the vehicle width direction so as to face the main body portion 2002 of the rear roof rail inner 20, and both sides of the main body portion 2402 in the longitudinal direction of the vehicle 12. And a flange portion 2404 extending in the vehicle width direction.
The rear roof rail outer 24 is joined by overlapping a flange portion 2404 with a flange portion 2004 of the rear roof rail inner 20 from above.
Further, as shown in FIG. 4, both end portions 2410 in the extending direction of the rear roof rail outer 24 are overlapped and joined to inner side portions 2202 in the vehicle width direction of the left and right hinge reinforcements 22 from above.
In the present embodiment, the vehicle width direction outer side portions 2204 of the left and right hinge reinforcements 22 are overlapped with the left and right brackets 18 from above on the vehicle width direction outer sides of both end portions 2410 of the rear roof rail outer 24 in the extending direction. Are joined.

  Therefore, although the rear roof rail outer 24 and the left and right side structures 16 are connected via the left and right hinge reinforcements 22, the rear roof rail outer 24 and the left and right side structures 16 are not directly joined.

As shown in FIG. 6, the gate opening 10 is located behind the rear roof rail outer 24 and the rear roof rail inner 20.
The width of the rear roof rail outer 24 in the front-rear direction of the vehicle 12 is smaller than the width of the rear roof rail inner 20 in the front-rear direction of the vehicle 12, and the rear roof rail outer 24 is disposed in front of the rear roof rail inner 20 in the front-rear direction of the vehicle 12. ing.
Accordingly, a space is formed at a position above the flange portion 2004 on the rear side of the vehicle 12 of the rear roof rail inner 20 behind the main body portion 2402 of the rear roof rail outer 24.
Therefore, a harness for electrical parts such as a room lamp and a brake lamp provided on the tailgate can be disposed in the space, which is advantageous in facilitating the handling of the harness.

According to the present embodiment, the rear roof rail inner 20 that connects the left and right brackets 18 from below is provided, and both ends 2410 in the extending direction of the rear roof rail outer 24 are inside the vehicle width direction of the left and right hinge reinforcements 22. The outer portions 2204 of the left and right hinge reinforcements 22 in the vehicle width direction outside the both ends 2410 in the extending direction of the rear roof rail outer 24 are joined to the left and right brackets 18. Are overlapped and joined from above.
Therefore, since the rear roof rail inner 20 and the left and right hinge reinforcements 22 are connected to the left and right brackets 18 in a wide range, the left and right side structures 16, the rear roof rail inner 20 and the left and right hinge reinforcements 22 are connected to each other. This is advantageous in securing the mounting strength.
This ensures sufficient strength against the load input from the child seat through the tether to the hinge reinforcement 22 when the vehicle 12 collides, or the load input from the hinge mechanism to the hinge reinforcement 22 when the tailgate is opened and closed. it can.

That is, it is advantageous in securing the strength of the structural portion connecting the upper rear portions of the left and right side structures 16, and the rigidity of the rear roof rail inner 20 and the side structures 16 surrounding the gate opening 10 can be sufficiently secured.
Therefore, even if both end portions 2410 in the extending direction of the rear roof rail outer 24 are not directly joined to the side structure 16, both end portions 2410 in the extending direction of the rear roof rail outer 24 are connected to the side via the left and right hinge reinforcements 22. If it is connected to the structure 16, the above-mentioned strength and rigidity can be secured.
As a result, the dimension in the extending direction of the rear roof rail outer 24 can be shortened, which is advantageous in reducing the size of the rear roof rail outer 24 and in reducing the weight.
For the same reason as described above, the strength and rigidity can be ensured even if the width of the rear roof rail outer 24 in the front-rear direction of the vehicle 12 is smaller than the width of the rear roof rail inner 20 in the front-rear direction of the vehicle 12. it can.
As a result, the dimensions of the rear roof rail outer 24 in the longitudinal direction of the vehicle 12 can be shortened, which is more advantageous in reducing the size and weight of the rear roof rail outer 24.
Therefore, it is advantageous in securing the strength of the structural portion that connects the rear portions of the upper portions of the left and right side structures 16 and reducing the weight.

Further, in the present embodiment, the width of the rear roof rail outer 24 in the front-rear direction of the vehicle 12 is made smaller than the width of the rear roof rail inner 20 in the front-rear direction of the vehicle 12, and the rear roof rail outer 24 is moved in the front-rear direction of the vehicle 12 of the rear roof rail inner 20. The case where it arrange | positions near to the front was demonstrated.
However, the rear roof rail outer 24 may be disposed behind the rear roof rail inner 20 in the front-rear direction of the vehicle 12.
In this case, a space is formed in a position above the flange portion 2004 on the front side of the vehicle 12 of the rear roof rail inner 20 in front of the main body portion 2402 of the rear roof rail outer 24.
Therefore, if the front part in the front-rear direction of the vehicle 12 of the rear roof rail inner 20 is displaced upward in the space, the passenger is seated in the space above the rear part of the passenger compartment, that is, in the rear seat. A large space behind the head H (see FIG. 6) can be secured, which is advantageous in improving the comfortability.

DESCRIPTION OF SYMBOLS 10 Gate opening 12 Vehicle 16 Side structure 18 Bracket 20 Rear roof rail inner 22 Hinge reinforcement 2202 Inner part 2204 Outer part 24 Rear roof rail outer 2410 Both end part 26 Child seat tether attachment part 28 Tail gate attachment part

Claims (2)

Left and right brackets projecting inward in the vehicle width direction at the upper rear of the left and right side structures,
A rear roof rail inner extending in the vehicle width direction and connecting the left and right brackets from below;
In the vehicle width direction, both ends in the extending direction of the rear roof rail inner and the left and right brackets, which are exposed upward inside the left and right brackets, are connected from above, and a child seat tether attachment portion and a tailgate attachment portion And left and right hinge reinforcements,
A rear roof rail outer extending in the vehicle width direction and connecting the rear roof rail inner and the left and right hinge reinforcements from above;
A vehicle body structure comprising:
Both ends in the extending direction of the rear roof rail outer are overlapped and joined to the inner side in the vehicle width direction of the left and right hinge reinforcements from above.
On the outer side in the vehicle width direction at both ends in the extending direction of the rear roof rail outer, the outer portions in the vehicle width direction of the left and right hinge reinforcements are overlapped and joined to the left and right brackets from above.
Body structure characterized by that. A gate opening is located behind the rear roof rail outer and the rear roof rail inner,
The width of the rear roof rail outer in the vehicle front-rear direction is smaller than the width of the rear roof rail inner in the vehicle front-rear direction,
The rear roof rail outer is disposed close to the front of the rear roof rail inner in the vehicle front-rear direction,
The vehicle body structure according to claim 1.

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