JP7235191B1 - Vehicle packing box reinforcement structure - Google Patents

Abstract

The reinforcing structure of the vehicle cargo box includes a header board forming a wall surface on the front side of the vehicle in the vehicle cargo box, a side gate arranged across the header board, and a plate-shaped plate connecting the header board and the side gate. and a fixing member. The fixing member includes a first fixing portion provided on one side of the fixing member and fixed to the top of the header board, and a predetermined portion of the side gate provided on the other side of the fixing member and positioned in front of the header board in the vehicle. and a second fixed portion fixed to the .

Description

The present invention relates to a reinforcing structure for a vehicle luggage box.

2. Description of the Related Art Conventionally, there is a vehicle provided with a box-shaped vehicle cargo box behind a cab in which passengers board. In this type of vehicle, a technique for reinforcing the vehicle luggage box has been disclosed. For example, Patent Literature 1 discloses a deck front pillar extending along the front edge of the side wall of the cargo space below the floor of the cargo space and to which the side wall is connected, and one of the deck front pillars above the floor of the cargo space. and a lower coupling portion that joins the cabin below the floor of the cargo bed among the deck front pillars.

Japanese Patent Application Laid-Open No. 2019-73197

In the technique disclosed in Patent Document 1, the deck front pillars that extend vertically across the floor of the cargo space are used to improve the coupling rigidity of the sidewalls of the cargo space with the cabin. In such a configuration in which joint portions for improving rigidity are provided on both the upper side and the lower side, there is a problem that the weight increases.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and its object is to provide a vehicle packing box structure that can avoid an increase in weight and can be effectively reinforced.

In order to achieve the above objects, the present invention has, for example, the following configurations.
(1) a header board forming a wall surface in front of the vehicle in the vehicle luggage box;
a side gate disposed across the header board;
a plate-shaped fixing member that connects the header board and the side gate;
A reinforcing structure for a vehicle luggage box comprising
The fixing member is
a first fixing portion provided on one side of the fixing member and fixed to an upper portion of the header board;
a second fixing portion provided on the other side of the fixing member and fixed to a predetermined portion of the side gate located in front of the vehicle relative to the header board;
having
Reinforcing structure for vehicle luggage boxes.
(2) A reinforcing structure for a vehicle packing box according to (1),
The fixing member has a connecting portion that connects the first fixing portion and the second fixing portion and that is inclined in the vehicle vertical direction toward the vehicle width direction,
Reinforcing structure for vehicle luggage boxes.
(3) A reinforcing structure for a vehicle packing box according to (1) or (2),
A first fixing point at which the first fixing portion of the fixing member and the upper portion of the header board are fixed, and a second fixing point at which the second fixing portion of the fixing member and the predetermined portion of the side gate are fixed. 2 fixed points are offset in the longitudinal direction of the vehicle,
Reinforcing structure for vehicle luggage boxes.
(4) A reinforcing structure for a vehicle luggage box according to any one of (1) to (3),
A first reinforcing member having a curved cross-sectional shape is provided on the upper portion of the header board along the vehicle width direction,
the first fixed portion of the fixed member is fixed to the first reinforcing member;
Reinforcing structure for vehicle luggage boxes.
(5) The reinforcing structure for a vehicle luggage box according to any one of (1) to (4),
A second reinforcing member is provided at the predetermined location of the side gate,
the second fixed portion of the fixed member is fixed to the second reinforcing member;
Reinforcing structure for vehicle luggage boxes.
(6) The reinforcing structure for a vehicle luggage box according to any one of (1) to (5),
The side gate is provided with a third reinforcing member behind the header board in the vehicle,
Reinforcing structure for vehicle luggage boxes.
(7) The reinforcing structure for a vehicle luggage box according to any one of (1) to (3),
A first reinforcing member having a curved cross-sectional shape is provided on the upper portion of the header board along the vehicle width direction,
the first fixed portion of the fixed member is fixed to the first reinforcing member;
A second reinforcing member is provided at the predetermined location of the side gate,
the second fixed portion of the fixed member is fixed to the second reinforcing member;
The side gate is provided with a third reinforcing member behind the header board in the vehicle,
The second reinforcing member has a projecting piece extending inward in the vehicle width direction,
The projecting piece is sandwiched between the first reinforcing member and the third reinforcing member,
Reinforcing structure for vehicle luggage boxes.
(8) A reinforcing structure for a vehicle packing box according to (7),
A third fixing point at which the projecting piece of the second reinforcing member and the third reinforcing member are fixed is located between the first fixing portion and the second fixing portion in the vertical direction of the vehicle,
Reinforcing structure for vehicle luggage boxes.
(9) A reinforcing structure for a vehicle packing box according to (2),
A ridgeline is formed at the connecting portion by bending the fixing member in the thickness direction,
Reinforcing structure for vehicle luggage boxes.

According to the cargo box structure vehicle of the present invention, it is possible to provide a vehicle cargo box structure that can avoid an increase in weight and can be effectively reinforced.

FIG. 1 is a perspective view of a vehicle luggage box to which the vehicle luggage box reinforcement structure of the present invention can be applied. FIG. 2 is a perspective view of a vehicle luggage box to which the vehicle luggage box reinforcement structure of the present invention can be applied. FIG. 3 is a perspective view showing the periphery of the connecting and fixing portion between the header board and the side gate. 4 is an enlarged view of a main portion of FIG. 3. FIG. FIG. 5 is a perspective view showing the periphery of the connecting/fixing portion between the header board and the side gate, with the header board 2 omitted. FIG. 6 is a top view showing the periphery of the connection fixing portion between the header board and the side gate. 7 is an enlarged view of a main part of FIG. 6. FIG. FIG. 8 is a rear view of the periphery of the connection and fixing portion between the header board and the side gate. FIG. 9 is a perspective view of a bracket. FIG. 10 is a view of the bracket as seen from the rear of the vehicle. FIG. 11 is a diagram of the bracket viewed from the vehicle width direction. FIG. 12 is a view of the bracket as seen from above the vehicle. FIG. 13 is a partially cutaway side view of the connecting and fixing portion as seen from the vehicle width direction.

A reinforcing structure for a vehicle luggage box according to an embodiment of the present invention will be described below with reference to the drawings. In each figure, arrows indicate the vehicle front-rear direction, the vehicle left-right direction (vehicle width direction), and the vehicle up-down direction, which are directions viewed from the driver (passenger) of the vehicle. Also, the brackets shown in FIGS. 9 to 12 indicate the orientation of the brackets attached to the vehicle. Further, the type of vehicle to which the reinforcing structure of the vehicle packing box of the present embodiment is applied is not particularly limited, and examples thereof include a gasoline vehicle, an electric vehicle (EV), a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHEV), and the like. can be applied to

1 and 2 are perspective views of a vehicle luggage box 1 to which the vehicle luggage box reinforcement structure of the present invention can be applied. 1 and 2 are different in detail, but have the same configuration in outline, and are given the same reference numerals.

The vehicle luggage box 1 is arranged behind the cabin of the vehicle. A vehicle luggage box 1 has a front header board 2, a pair of left and right side gates 3, 3, a rear tail gate 4, and a lower floor panel 5. - 特許庁

The header board 2 constitutes a front wall surface of the vehicle packing box 1 and extends in the left-right direction (vehicle width direction).
A pair of side gates 3 , 3 are arranged across the header board 2 . Specifically, the pair of side gates 3 , 3 are connected to the left and right ends of the header board 2 , extend mainly toward the rear of the vehicle, and constitute wall surfaces on both the left and right sides of the vehicle luggage box 1 . A wheel arch 3 a is formed at the lower end of each side gate 3 .
The tailgate 4 is connected to rear ends of the pair of side gates 3, 3 and extends in the left-right direction.
A floor panel 5 closes the lower side of the space surrounded by the header board 2, the pair of side gates 3, 3 and the tailgate 4. - 特許庁

As described above, the vehicle luggage box 1 is a rectangular accommodation space formed by the header board 2 , the pair of side gates 3 , 3 , the tail gate 4 , and the floor panel 5 .

An upper rail 30 is fixed to the upper portion of the header board 2 by welding or the like along the vehicle width direction. In the example of FIG. 1, a guard frame 60 is fixed to the upper part of the upper rail 30. As shown in FIG.

A header board 2 , a pair of side gates 3 and a tailgate 4 are attached to the floor panel 5 so as to stand on them. The lower end of the tailgate 4 is rotatable with respect to the floor panel 5 as shown in FIG.

As shown in FIG. 2, when a large amount of cargo is loaded in the vehicle packing box 1 with the tailgate 4 closed, the header board 2, the side gates 3, and the tailgate 4 are exposed from the inside of the packing box. An outward force F1 directed toward the outer side of the packing box (assumed to be a force directed outward at substantially right angles to the four sides from the center of the vehicle packing box 1) is applied. Due to this outward force F1, a load is applied to the connecting portion between both ends of the header board 2 in the vehicle width direction and the inner surfaces of the pair of side gates 3, 3 in the vehicle width direction so as to open the connecting portion. be done.

Also, for example, when a rope is hung between the pair of side gates 3 and tied in the vehicle width direction, or when a rope is hung between the header board 2 and the tailgate 4 and tied in the longitudinal direction, the cargo box is An inward force F2 directed from the outside to the inside of the packing box is applied. Due to this inward force F2, a load is applied to the connecting portion between both ends of the header board 2 in the vehicle width direction and the inner surfaces of the pair of side gates 3, 3 in the vehicle width direction so as to close the connecting portion. be done.

As described above, the connecting portion between the header board 2 and the pair of side gates 3, 3 is likely to be loaded with a load, and the upper end portion of the connecting portion is particularly likely to be a weak portion. Therefore, in the vehicle luggage box 1 of this embodiment, the header board 2 and the pair of side gates 3, 3 are connected and reinforced by plate-shaped brackets 10 (fixing members) that are separate from these. More specifically, the upper ends of the header board 2 in the vehicle width direction and the pair of side gates 3, 3 are connected and fixed portions A, A including brackets 10 (see FIGS. 3 to 8), which will be described later. It is connected through and reinforced. Note that the bracket 10 is not shown in FIGS. 1 and 2 .

FIG. 3 is a perspective view showing the periphery of the connecting/fixing portion A between the header board 2 and the side gate 3. As shown in FIG. 4 is an enlarged view of a main portion of FIG. 3. FIG. FIG. 5 is a perspective view showing the periphery of the connecting/fixing portion A between the header board 2 and the side gate 3, with the header board 2 omitted. FIG. 6 is a top view showing the periphery of the connecting/fixing portion A between the header board 2 and the side gate 3. As shown in FIG. 7 is an enlarged view of a main part of FIG. 6. FIG. FIG. 8 is a rear view of the periphery of the connecting/fixing portion A between the header board 2 and the side gate 3. As shown in FIG.

Left and right connecting/fixing portions A, A between the header board 2 and the pair of side gates 3, 3 are symmetrical in the vehicle width direction. Therefore, in the following description, only the right connecting/fixing portion A will be illustrated and described.

As shown in FIGS. 3 to 8, in the connection fixing portion A, a bracket 10 is provided as a plate-shaped fixing member for connecting the header board 2 and the side gate 3. As shown in FIG. Details of the bracket 10 will be described later.

An upper rail 30 as a first reinforcing member having a curved cross-sectional shape is provided on the upper end portion 2a (upper portion) of the header board 2 along the vehicle width direction. The upper rail 30 is fixed to the header board 2 by welding or the like. The upper rail 30 includes a base portion 30a that extends vertically along the front surface of the header board 2, and an extension portion 30b that extends forward from the upper end portion of the base portion 30a. A front end portion of the extension portion 30b has a hook shape bent downward and rearward, and a rope or the like for fixing a load placed on the vehicle packing box 1 can be fixed. In this way, the upper rail 30 has a generally inverted L-shaped cross section. By providing the upper rail 30 as a first reinforcing member, the upper rail reinforces the upper end portion 2a of the header board 2 .

The side gate 3 as a whole is curved so as to bulge outward in the vehicle width direction. and a side portion 3c. A front reinforcement 40 as a second reinforcing member is fixed to the vehicle width direction inner surface of the front portion 3b as a predetermined portion of the side gate 3 . A rear reinforcement 50 as a third reinforcing member is fixed to the side gate 3 behind the header board 2 in the vehicle.

A rear end portion of the front reinforcement 40 is positioned rearward of the vehicle relative to the bracket 10 and slightly rearward of the vehicle relative to the upper rail 30 . A projecting piece 41 extending inward in the vehicle width direction is formed at the upper end portion of the rear end portion of the front reinforcement 40 . The projecting piece 41 has a flat plate shape extending substantially perpendicularly to the vehicle front-rear direction (substantially parallel to the vehicle vertical direction and the vehicle width direction). The projecting piece 41 is arranged at substantially the same position as the header board 2 in the front and rear of the vehicle, and is arranged above the header board 2 . The front surface of the projecting piece 41 contacts the rear surface of the base portion 30 a of the upper rail 30 .

A projecting wall 51 extending inward in the vehicle width direction is formed at the upper end of the front end of the rear reinforcement 50 . The projecting wall 51 has a flat plate shape extending substantially perpendicularly to the vehicle front-rear direction (substantially parallel to the vehicle vertical direction and the vehicle width direction). The front surface of the projecting wall 51 contacts the rear surface of the projecting piece 41 .

Thus, the projecting piece 41 of the front reinforcement 40 is sandwiched between the rear surface of the base portion 30a of the upper rail 30 and the front surface of the projecting wall 51 of the rear reinforcement 50 in the front-rear direction. Here, the projecting piece 41 is formed with a projecting piece hole 41a that penetrates the projecting piece 41 in the front-rear direction, and the projecting wall 51 is provided with a projecting wall hole 51a that penetrates the projecting wall 51 in the front-rear direction. ing. Then, in a state in which the base portion 30a of the upper rail 30 is aligned with the projecting piece hole 41a and the projecting wall hole 51a, the projecting piece hole 41a and the projecting wall hole 51a are welded to form the upper rail 30 and the front side ring. The force 40 and the rear reinforcement 50 are fixed. The point at which the upper rail 30, the front reinforcement 40, and the rear reinforcement 50 are thus fixed is called a third fixing point P3. The fixing method at the third fixing point P3 is not limited to welding, and bolt fixing or the like may be adopted.

FIG. 9 is a perspective view of the bracket 10. FIG. FIG. 10 is a view of the bracket 10 as seen from the rear of the vehicle. FIG. 11 is a diagram of the bracket 10 viewed from the vehicle width direction. FIG. 12 is a view of the bracket 10 viewed from above the vehicle.

As shown in FIGS. 3 to 8 and 9 to 12, the bracket 10 includes a first fixing portion 11 provided on one side of the bracket 10 and fixed to the top of the header board 2, and the other side of the bracket 10. a second fixed portion 12 provided in the second fixed portion 12 fixed to a predetermined portion of the side gate 3 located in front of the vehicle relative to the header board 2; and a connecting portion 13 connecting the first fixed portion 11 and the second fixed portion 12 is a plate-like fixing member having

The first fixing portion 11 is located on the upper end side of the bracket 10 in the attached state and extends substantially vertically in the vertical direction (substantially parallel to the vehicle width direction and the front-rear direction). A vertically extending through hole 11 a is formed in substantially the center of the first fixed portion 11 . The upper surface of the first fixed portion 11 contacts the upper portion of the header board 2, more specifically, the lower surface of the extension 30b of the upper rail 30. As shown in FIG. The first fixed portion 11 is fixed to the lower surface of the extension portion 30b of the upper rail 30 by welding or the like through the through hole 11a. The point at which the first fixing portion 11 of the bracket 10 and the extending portion 30b of the upper rail 30 (upper portion of the header board 2) are thus fixed is called a first fixing point P1. The fixing method at the first fixing point P1 is not limited to welding, and bolt fixing or the like may be adopted.

The second fixing portion 12 is located on the lower end side of the bracket 10 in the attached state and extends substantially perpendicular to the vehicle width direction (substantially parallel to the vertical direction and the front-rear direction). Strictly speaking, the illustrated second fixing portion 12 is slightly inclined outward in the vehicle width direction as it goes downward, thereby enhancing the stress dispersion effect. A through hole 12a extending in the vehicle width direction is formed substantially in the center of the second fixed portion 12 . The outer surface of the second fixed portion 12 in the vehicle width direction is positioned at a predetermined portion of the side gate 3 located forward of the header board 2, more specifically, the front reinforcement 40 provided at the predetermined portion of the side gate 3. It abuts on the inner side surface in the vehicle width direction. The second fixed portion 12 is fixed by welding or the like to the inner surface of the front reinforcement 40 in the vehicle width direction through the through hole 12a. The point at which the second fixing portion 12 of the bracket 10 and the front reinforcement 40 as the second reinforcing member are thus fixed is called a second fixing point P2. The fixing method at the second fixing point P2 is not limited to welding, and bolt fixing or the like may be adopted.

Between the first fixed portion 11 and the second fixed portion 12, the connection portion 13 is inclined in the vehicle vertical direction as it extends in the vehicle width direction. In this embodiment, the connection portion 13 is inclined downward toward the outside in the vehicle width direction. As shown in FIG. 11, the width of the connection portion 13 in the front-rear direction is formed so as to increase downward. More specifically, the connecting portion 13 mainly bulges forward as it extends downward.

Therefore, the second fixing portion 12 connected to the lower end of the connecting portion 13 bulges forward more than the first fixing portion 11 as a whole. As a result, the through hole 12a provided substantially in the center of the second fixed portion 12 and the second fixing point P2 constituted by the through hole 12a are aligned with the through hole 11a provided substantially in the center of the first fixed portion 11 and the through hole 12a. It is located below and in front of the first fixed point P1 formed by 11a. That is, as shown in FIG. 11, the first fixed point P1 and the second fixed point P2 are offset by a distance L1 in the longitudinal direction and by a distance L2 in the vertical direction.

In addition, as shown in FIG. 8 and the like, the third fixing point P3 at which the upper rail 30, the front reinforcement 40, and the rear reinforcement 50 are fixed is the first fixing point P3 of the bracket 10 in the vertical direction of the vehicle. It is located between the part 11 and the second fixed part 12 . Accordingly, the third fixing point P3 is located between the first fixing point P1 and the second fixing point P2 in the vertical direction of the vehicle.

The connecting portion 13 includes a first connecting portion 14 arranged above and a second connecting portion 15 arranged below.

The first connecting portion 14 connects with the first fixed portion 11 . The first connection portion 14 has a substantially flat plate shape that slopes downward from the first fixed portion 11 toward the outside in the vehicle width direction.

The second connecting portion 15 connects the first connecting portion 14 and the second fixed portion 12 to each other. Like the first connection portion 14 , the second connection portion 15 inclines downward toward the outside in the vehicle width direction. A plurality of ridgelines 71 to 78 are formed by bending in the direction.

That is, the second connecting portion 15 includes a plurality of inclined portions 21-25 that are partitioned by a plurality of ridgelines 71-78 and inclined in substantially the same direction. The plurality of inclined portions 21 to 25 have a multifaceted structure with different inclination angles, inclination directions, shapes, etc. and a fifth inclined portion 25 .

The first inclined portion 21 is positioned above the second connection portion 15 and connected to the lower end of the first connection portion 14 .
The second inclined portion 22 is positioned in the center of the second connection portion 15 .
The third inclined portion 23 is positioned in front of the second inclined portion 22 .
The fourth inclined portion 24 is positioned behind the second inclined portion 22 .
The fifth inclined portion 25 is positioned below the second connection portion 15 and connects with the upper end of the second fixed portion 12 .

The first ridgeline 71 extends substantially parallel to the vehicle front-rear direction and separates the first inclined portion 21 and the second inclined portion 22 .
The second ridgeline 72 connects to the first ridgeline 71 and extends upward and inward in the vehicle width direction toward the front. The second ridge line 72 separates the first inclined portion 21 and the third inclined portion 23 .
The third ridgeline 73 connects to the first ridgeline 71 and extends upward and inward in the vehicle width direction toward the rear. The third ridge line 73 separates the first inclined portion 21 and the fourth inclined portion 24 .
The fourth ridgeline 74 connects to the first ridgeline 71 and the second ridgeline 72 and extends outward in the vehicle width direction as it goes downward. The fourth ridge line 74 separates the second inclined portion 22 and the third inclined portion 23 .
The fifth ridgeline 75 connects to the first ridgeline 71 and the third ridgeline 73 and extends outward in the vehicle width direction as it goes downward. The fifth edge line 75 is substantially parallel to the fourth edge line 74 . The fifth ridge line 75 separates the second inclined portion 22 and the fourth inclined portion 24 .
The sixth ridgeline 76 extends substantially parallel to the vehicle front-rear direction and separates the second inclined portion 22 and the fifth inclined portion 25 . The sixth edge line 76 is substantially parallel to the first edge line 71 .
The seventh ridgeline 77 connects with the fourth ridgeline 74 and the sixth ridgeline 76 and extends downward and outward in the vehicle width direction toward the front. The seventh ridge line 77 separates the third inclined portion 23 and the fifth inclined portion 25 .
The eighth ridgeline 78 connects to the fifth ridgeline 75 and the sixth ridgeline 76 and extends downward and outward in the vehicle width direction toward the rear. The eighth ridge line 78 separates the fourth inclined portion 24 and the fifth inclined portion 25 .

Therefore, the second connecting portion 15 has a second inclined portion 22 having a substantially rectangular shape in a side view at its center, and around the second inclined portion 22, first, third, fourth and fifth inclined portions 21 having a substantially trapezoidal shape in a side view. , 23, 24, 25 are arranged. Among the first to fifth inclined portions 21 to 25, the central second inclined portion 22 protrudes most in the thickness direction of the bracket 10 (outward in the vehicle width direction). In this manner, since the connection portion 13 is provided with a bending structure including the plurality of ridgelines 71 to 78, the rigidity of the bracket 10 can be increased.

Here, as described above with reference to FIG. 2, when a large amount of cargo is loaded in the vehicle packing box 1, the header board 2, the pair of side gates 3, 3 and the tailgate 4 are protected from the inside of the packing box. An outward force F1 directed toward the outside of the packing box is applied. The outward force F1 pushes the header board 2 toward the front of the vehicle and pushes the side gate 3 outward in the vehicle width direction. In this case, a force is applied to the connecting portion between both ends of the header board 2 in the vehicle width direction and the inner side surfaces of the pair of side gates 3, 3 in the vehicle width direction so as to open the connecting portion.

Similarly, as described above with reference to FIG. 2, when a rope is hung between the header board 2 and the tailgate 4 and bound in the longitudinal direction, an inward force directed from the outside of the packing box to the inside of the packing box is applied. F2 is added. Due to this inward force F2, a force is applied to the connecting portion between both ends of the header board 2 in the vehicle width direction and the inner surfaces of the pair of side gates 3, 3 in the vehicle width direction so as to close the connecting portion. . FIG. 13 is a partially broken side view of the connecting/fixing portion A as seen from the vehicle width direction. When the above-described inward force F2 is applied, as indicated by the arrow in FIG. 13, the extension 30b of the upper rail 30, on which a rope hook or the like is hung, is a force that causes deformation such that it floats. F3 works

Therefore, in this embodiment, a bracket 10 is provided to connect the header board 2 and the side gate 3 to reinforce the connecting portion.
In particular, the bracket 10 of the present embodiment includes a first fixing portion 11 provided on one side of the bracket 10 and fixed to the upper portion (upper rail 30) of the header board 2, and a first fixing portion 11 provided on the other side of the bracket 10, which includes the header and a second fixed portion 12 fixed to a predetermined portion (front reinforcement 40) of the side gate 3 located in front of the vehicle relative to the board 2. That is, the first fixed portion 11 and the second fixed portion 12 of the bracket 10 are offset in the vehicle longitudinal direction. Therefore, the first fixing portion 11 and the second fixing portion 12 can receive part of the external force as a shearing force, and the load on the bracket 10 can be reduced.
In addition, since the second fixing portion 12 is positioned forward of the vehicle relative to the header board 2, the bracket 10 is positioned outside the storage area of the vehicle luggage box 1, and the storage capacity of the vehicle luggage box 1 can be increased.
Further, the plate-like shape of the bracket 10 makes it possible to reduce the weight.

Further, the bracket 10 has a connection portion 13 that connects the first fixed portion 11 and the second fixed portion 12 and that is inclined in the vertical direction of the vehicle toward the width direction of the vehicle. Therefore, the load on bracket 10 can be distributed. As shown by the dashed line D in FIG. 8, if the bracket 10 does not have the inclined connecting portion 13 and the first fixing portion 11 and the second fixing portion 12 are vertically connected, the first The load concentrates on the corner connecting the fixed portion 11 and the second fixed portion 12 . In this case, it is necessary to increase the strength of the bracket 10 itself, and the increase in the plate thickness and the addition of the bead shape will increase the weight and cost, which is not preferable.
In addition, the first fixed portion 11 and the second fixed portion 12 connected by the connection portion 13 are offset not only in the longitudinal direction of the vehicle but also in the vertical direction and the width direction of the vehicle. The positional relationship between the first fixed point P1) and the second fixed portion 12 (second fixed point P2) is three-dimensional. Therefore, the stress generated in the first fixing portion 11 (the first fixing point P1) and the second fixing portion 12 (the second fixing point P2) is easily dispersed in the longitudinal direction, the vertical direction, and the vehicle width direction. As a result, the stress dispersion function of the bracket 10 is enhanced, and the deformation prevention effect can be enhanced.

A first fixing point P1 at which the first fixing portion 11 of the bracket 10 and the upper portion (upper rail 30) of the header board 2 are fixed, a predetermined portion (front reinforcement) between the second fixing portion 12 of the bracket 10 and the side gate 3 40) is offset in the longitudinal direction of the vehicle from the second fixing point P2 to which . Therefore, the external force can be efficiently received.
In particular, as shown in FIG. 13, the load on the bracket 10 can be reduced when a force F3 acts on the extending portion 30b of the upper rail 30 to cause deformation such that the extending portion 30b is lifted. If the first fixed point P1 and the second fixed point P2 are at the same position in the longitudinal direction of the vehicle, the line connecting the first fixed point P1 and the second fixed point P2 and the force F3 directed toward the vehicle rearward. , becomes vertical, and it is difficult to receive the load efficiently.

An upper rail 30 (first reinforcing member) having a curved cross-sectional shape is provided on the upper portion of the header board 2 along the vehicle width direction. Fixed. Therefore, the upper part of the header board 2, which tends to be a weak part, can be reinforced by the upper rail 30 in addition to the bracket 10. - 特許庁

A front reinforcement 40 (second reinforcing member) is provided at a predetermined location of the side gate 3 , and the second fixing portion 12 of the bracket 10 is fixed to the front reinforcement 40 . Therefore, a predetermined portion of the header board 2, which tends to be a weak portion, can be reinforced by the front reinforcement 40 in addition to the bracket 10.

The side gate 3 is provided with a rear reinforcement 50 (third reinforcement member) behind the header board 2 in the vehicle. Therefore, the side gate 3 can be further reinforced.

The front reinforcement 40 has a projecting piece 41 extending inward in the vehicle width direction, and the projecting piece 41 is sandwiched between the upper rail 30 and the rear reinforcement 50 . In addition to being fixed to the upper rail 30 by , it is fixed to the upper rail 30 and the rear reinforcement 50 by being sandwiched, so the load on the bracket 10 can be distributed.

A third fixing point P3 to which the projecting piece 41 of the front reinforcement 40 and the rear reinforcement 50 are fixed is located between the first fixing portion 11 (first fixing point P1) and the second fixing portion of the bracket 10 in the vertical direction of the vehicle. 12 (second fixed point P2). Therefore, three fixing points P1, P2, and P3 are arranged compactly while the load can be distributed by fixing the three points. These three fixing points P1, P2, and P3 are directly connected to the bracket 10 and the three reinforcing members (the upper rail 30, the front reinforcement 40, and the rear reinforcement 50). Rigidity as a whole can be increased.

In the reinforcing structure of the present embodiment described above, the three fixing points P1, P2, and P3 are three-dimensionally arranged offset in the longitudinal direction, the vertical direction, and the vehicle width direction, so that external forces in all directions can be handled. By doing so, the dispersing function can be enhanced, and the effect of suppressing deformation can be improved.

Ridge lines 71 to 78 are formed at the connection portion 13 of the bracket 10 by bending the bracket 10 in the thickness direction. Thereby, the rigidity of the bracket 10 is improved.

Although the embodiments of the present invention have been described above, the present invention can be appropriately modified within the scope of its technical concept. For example, in the above-described embodiment, the connecting portion 13 of the bracket 10 is provided with the first to fifth inclined portions 21 to 25, but the number of inclined portions is not limited to this. Also, the inclination angle, shape, etc. of each inclined portion are not limited to those shown in the drawings.

Reference Signs List 1 vehicle cargo box 2 header board 2a upper end 3 side gate 3a wheel arch 3b front portion 4 tailgate 5 floor panel 10 bracket (fixing member)
11 First fixed portion 11a Through hole 12 Second fixed portion 12a Through hole 13 Connecting portion 14 First connecting portion 15 Second connecting portion 21 First inclined portion 22 Second inclined portion 23 Third inclined portion 24 Fourth inclined portion 25 Fifth inclined portion 30 Upper rail (first reinforcing member)
30a base 30b extension 40 front reinforcement (second reinforcement member)
41 projecting piece 41a projecting piece hole 50 rear reinforcement (third reinforcing member)
51 projecting wall 51a projecting wall hole 60 guard frame 71 first ridgeline 72 second ridgeline 73 third ridgeline 74 fourth ridgeline 75 fifth ridgeline 76 sixth ridgeline 77 seventh ridgeline 78 eighth ridgeline A connected and fixed portion F1 outward Force F2 Inward force P1 First fixed point P2 Second fixed point P3 Third fixed point

Claims (9)

a header board forming a wall surface in front of the vehicle in the vehicle luggage box;
a side gate disposed across the header board;
a plate-shaped fixing member that connects the header board and the side gate;
A reinforcing structure for a vehicle luggage box comprising
The fixing member is
a first fixing portion provided on one side of the fixing member and fixed to an upper portion of the header board;
a second fixing portion provided on the other side of the fixing member and fixed to a predetermined portion of the side gate located in front of the vehicle relative to the header board;
having
Reinforcing structure for vehicle luggage boxes. A reinforcing structure for a vehicle packing box according to claim 1,
The fixing member has a connecting portion that connects the first fixing portion and the second fixing portion and that is inclined in the vehicle vertical direction toward the vehicle width direction,
Reinforcing structure for vehicle luggage boxes. A reinforcing structure for a vehicle packing box according to claim 1 or 2,
A first fixing point at which the first fixing portion of the fixing member and the upper portion of the header board are fixed, and a second fixing point at which the second fixing portion of the fixing member and the predetermined portion of the side gate are fixed. 2 fixed points are offset in the longitudinal direction of the vehicle,
Reinforcing structure for vehicle luggage boxes. A reinforcing structure for a vehicle luggage box according to any one of claims 1 to 3,
A first reinforcing member having a curved cross-sectional shape is provided on the upper portion of the header board along the vehicle width direction,
the first fixed portion of the fixed member is fixed to the first reinforcing member;
Reinforcing structure for vehicle luggage boxes. A reinforcing structure for a vehicle luggage box according to any one of claims 1 to 4,
A second reinforcing member is provided at the predetermined location of the side gate,
the second fixed portion of the fixed member is fixed to the second reinforcing member;
Reinforcing structure for vehicle luggage boxes. A reinforcing structure for a vehicle luggage box according to any one of claims 1 to 5,
The side gate is provided with a third reinforcing member behind the header board in the vehicle,
Reinforcing structure for vehicle luggage boxes. A reinforcing structure for a vehicle luggage box according to any one of claims 1 to 3,
A first reinforcing member having a curved cross-sectional shape is provided on the upper portion of the header board along the vehicle width direction,
the first fixed portion of the fixed member is fixed to the first reinforcing member;
A second reinforcing member is provided at the predetermined location of the side gate,
the second fixed portion of the fixed member is fixed to the second reinforcing member;
The side gate is provided with a third reinforcing member behind the header board in the vehicle,
The second reinforcing member has a projecting piece extending inward in the vehicle width direction,
The projecting piece is sandwiched between the first reinforcing member and the third reinforcing member,
Reinforcing structure for vehicle luggage boxes. A reinforcing structure for a vehicle packing box according to claim 7,
A third fixing point at which the projecting piece of the second reinforcing member and the third reinforcing member are fixed is located between the first fixing portion and the second fixing portion in the vertical direction of the vehicle,
Reinforcing structure for vehicle luggage boxes. A reinforcing structure for a vehicle packing box according to claim 2,
A ridgeline is formed at the connecting portion by bending the fixing member in the thickness direction,
Reinforcing structure for vehicle luggage boxes.

Images