WO2023175679A1 - Structure for reinforcing vehicle cargo box - Google Patents

Structure for reinforcing vehicle cargo box Download PDF

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Publication number
WO2023175679A1
WO2023175679A1 PCT/JP2022/011361 JP2022011361W WO2023175679A1 WO 2023175679 A1 WO2023175679 A1 WO 2023175679A1 JP 2022011361 W JP2022011361 W JP 2022011361W WO 2023175679 A1 WO2023175679 A1 WO 2023175679A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
fixed
header board
fixing
vehicle cargo
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Application number
PCT/JP2022/011361
Other languages
French (fr)
Japanese (ja)
Inventor
美香 青木
崇史 黒木
美重 古橋
Original Assignee
三菱自動車工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 三菱自動車工業株式会社 filed Critical 三菱自動車工業株式会社
Priority to PCT/JP2022/011361 priority Critical patent/WO2023175679A1/en
Priority to JP2022579073A priority patent/JP7235191B1/en
Publication of WO2023175679A1 publication Critical patent/WO2023175679A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/02—Platforms; Open load compartments

Definitions

  • the present invention relates to a reinforcing structure for a vehicle cargo box.
  • Patent Document 1 describes a deck front pillar that extends below the floor of the loading platform along the front edge of the side wall of the loading platform and is connected to the side wall, and a deck front pillar that extends below the floor of the loading platform along the front edge of the loading platform, and
  • a vehicle cargo bed coupling structure is disclosed that includes an upper coupling portion that couples to the cabin at a portion of the deck front pillar and a lower coupling portion that couples to the cabin at a portion of the deck front pillar below the floor of the cargo platform.
  • Patent Document 1 uses a deck front pillar that extends vertically across the floor of the cargo platform to improve the rigidity of the side wall of the cargo platform to the cabin.
  • the joint portions for improving rigidity are provided on both the upper and lower sides, there is a problem in that the weight increases.
  • the present invention has been made in view of these problems, and its purpose is to provide a vehicle cargo box structure that can avoid an increase in weight and can be effectively reinforced.
  • the present invention has, for example, the following configuration.
  • a header board that constitutes the wall in front of the vehicle in the vehicle cargo 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 cargo box comprising:
  • the fixing member is a first fixing part provided on one side of the fixing member and fixed to the top of the header board; a second fixing portion provided on the other side of the fixing member and fixed to a predetermined location of the side gate located further forward of the vehicle than the header board; has, Reinforcement structure for vehicle cargo boxes.
  • the reinforcing structure for the vehicle cargo box according to (1) The fixing member connects the first fixing part and the second fixing part, and has a connecting part that slopes in the vehicle vertical direction as it goes in the vehicle width direction. Reinforcement structure for vehicle cargo boxes.
  • a first reinforcing member having a bent cross-sectional shape is provided at the upper part of the header board along the vehicle width direction, the first fixed portion of the fixed member is fixed to the first reinforcing member; Reinforcement structure for vehicle cargo boxes.
  • 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; Reinforcement structure for vehicle cargo boxes.
  • a third reinforcing member is provided on the side gate at a position further rearward of the vehicle than the header board. Reinforcement structure for vehicle cargo boxes.
  • a first reinforcing member having a bent cross-sectional shape is provided at the upper part 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, and
  • the second reinforcing member has a protrusion extending inward in the vehicle width direction, the protruding piece is sandwiched between the first reinforcing member and the third reinforcing member; Reinforcement structure for vehicle cargo boxes.
  • 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 cargo box to which the vehicle cargo box reinforcing structure of the present invention can be applied.
  • FIG. 2 is a perspective view of a vehicle cargo box to which the vehicle cargo 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.
  • FIG. 4 is an enlarged view of the main part of FIG. 3.
  • FIG. 5 is a perspective view showing the periphery of the connecting and 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 connecting and fixing portion between the header board and the side gate.
  • FIG. 7 is an enlarged view of the main part of FIG. FIG.
  • FIG. 8 is a rear view of the periphery of the connecting and fixing portion between the header board and the side gate.
  • FIG. 9 is a perspective view of the bracket.
  • FIG. 10 is a diagram of the bracket 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 diagram of the bracket viewed from above the vehicle.
  • FIG. 13 is a partially cutaway side view of the connecting and fixed portion viewed from the vehicle width direction.
  • the directions of the vehicle longitudinal direction, the vehicle left-right direction (vehicle width direction), and the vehicle vertical direction, which are the directions seen from the driver (occupant) of the vehicle, are indicated by arrows.
  • the orientations when attached to the vehicle are shown.
  • the types of vehicles to which the vehicle cargo box reinforcement structure of the present embodiment is applied are not particularly limited, and include, for example, gasoline vehicles, electric vehicles (EV), hybrid vehicles (HEV), plug-in hybrid vehicles (PHEV), etc. Applicable to
  • FIGS. 1 and 2 are perspective views of a vehicle cargo box 1 to which the vehicle cargo box reinforcing structure of the present invention can be applied.
  • vehicle cargo boxes 1 in FIGS. 1 and 2 differ in detail, they have the same general configuration and are therefore given the same reference numerals.
  • the vehicle cargo box 1 is placed behind the cabin of the vehicle.
  • the vehicle cargo box 1 includes a front header board 2, a pair of left and right side gates 3, 3, a rear tailgate 4, and a lower floor panel 5.
  • the header board 2 constitutes the front wall surface of the vehicle cargo 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 both left and right ends of the header board 2, extend mainly toward the rear of the vehicle, and constitute the left and right wall surfaces of the vehicle cargo box 1.
  • a wheel arch 3a is formed at the lower end of each side gate 3.
  • the tailgate 4 is connected to the rear end portions of the pair of side gates 3, 3, and extends in the left-right direction.
  • the floor panel 5 closes the lower side of the space surrounded by the header board 2, the pair of side gates 3, and the tail gate 4.
  • the vehicle cargo box 1 is a rectangular storage space when viewed from above, which is configured 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 top of the header board 2 along the vehicle width direction by welding or the like.
  • a guard frame 60 is fixed to the upper part of the upper rail 30.
  • the header board 2, the pair of side gates 3, and the tailgate 4 are attached to stand on the floor panel 5.
  • the lower end of the tailgate 4 is rotatably provided with respect to the floor panel 5 as shown in FIG. 1, and is configured to facilitate loading and unloading of luggage into the vehicle cargo box 1.
  • the cargo box An inward force F2 is applied from the outside toward the inside of the cargo box. 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 in the vehicle width direction of the pair of side gates 3, 3 so as to close the connecting portion. be done.
  • the header board 2 and the pair of side gates 3, 3 are connected and reinforced by a separate plate-shaped bracket 10 (fixing member). More specifically, the upper end portions of both ends in the vehicle width direction of the header board 2 and the pair of side gates 3 have connecting fixed portions A, A including a bracket 10 (see FIGS. 3 to 8), which will be described later. They are connected and reinforced through. Note that the bracket 10 is not shown in FIGS. 1 and 2.
  • FIG. 3 is a perspective view showing the vicinity of the connecting and fixing portion A between the header board 2 and the side gate 3.
  • FIG. 4 is an enlarged view of the main part of FIG. 3.
  • FIG. 5 is a perspective view showing the periphery of a connecting and fixed 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 vicinity of the connecting and fixing portion A between the header board 2 and the side gate 3.
  • FIG. 7 is an enlarged view of the main part of FIG.
  • FIG. 8 is a view of the periphery of the connecting and fixing portion A between the header board 2 and the side gate 3, seen from the rear.
  • the left and right connecting and fixing parts 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 side connecting and fixing portion A will be illustrated and explained.
  • a bracket 10 is provided as a plate-shaped fixing member that connects the header board 2 and the side gate 3. Details of the bracket 10 will be described later.
  • An upper rail 30 serving as a first reinforcing member having a bent cross-sectional shape is provided at the upper end 2a (upper part) 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 in the vertical direction along the front surface of the header board 2, and an extension portion 30b that extends forward from the upper end of the base portion 30a.
  • the front end portion of the extension portion 30b has a hook shape bent downward and backward, and a rope or the like for securing cargo placed in the vehicle cargo box 1 can be fixed thereto.
  • the upper rail 30 has a generally inverted L-shaped cross section.
  • the side gate 3 as a whole is curved so as to bulge outward in the vehicle width direction, and has a front portion 3b located in front of the vehicle than the header board 2, and a rear portion 3b located in the rear of the vehicle than the header board 2. and a side portion 3c.
  • a front reinforcement 40 as a second reinforcing member is fixed to the inner surface in the vehicle width direction of the front portion 3b as a predetermined location of the side gate 3.
  • a rear reinforcement 50 serving as a third reinforcing member is fixed to the side gate 3 behind the header board 2 in the vehicle.
  • the rear end portion of the front reinforcement 40 is located further rearward of the vehicle than the bracket 10 and furthermore slightly rearward of the vehicle than the upper rail 30.
  • a projecting piece 41 extending inward in the vehicle width direction is formed at the upper end of the rear end of the front reinforcement 40.
  • the protruding piece 41 has a flat plate shape that extends substantially perpendicularly to the vehicle longitudinal direction (substantially parallel to the vehicle vertical direction and 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 30a of the upper rail 30.
  • a projecting wall 51 that extends 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 that extends substantially perpendicularly to the vehicle longitudinal direction (substantially parallel to the vehicle vertical direction and vehicle width direction). The front surface of the projecting wall 51 contacts the rear surface of the projecting piece 41.
  • the projecting piece 41 of the front reinforcement 40 is sandwiched between the rear surface of the base 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.
  • the protrusion piece 41 is formed with a protrusion hole 41a that penetrates the protrusion piece 41 in the front-back direction
  • the protrusion wall 51 is provided with a protrusion wall hole 51a that penetrates the protrusion wall 51 in the front-rear direction. ing.
  • the fixing method at the third fixing point P3 is not limited to welding, and bolt fixing or the like may be employed.
  • FIG. 9 is a perspective view of the bracket 10.
  • FIG. 10 is a diagram of the bracket 10 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 diagram of the bracket 10 viewed from above the vehicle.
  • the bracket 10 includes a first fixing portion 11 provided on one side of the bracket 10 and fixed to the upper part of the header board 2, and a first fixing portion 11 on the other side of the bracket 10.
  • a second fixed part 12 which is provided at a predetermined location of the side gate 3 located in front of the header board 2 in the vehicle; and a connecting part 13 which connects the first fixed part 11 and the second fixed part 12. It is a plate-shaped fixing member having .
  • the first fixed portion 11 is located on the upper end side of the bracket 10 and extends substantially perpendicularly in the up-down direction (substantially parallel to the vehicle width direction and the front-rear direction).
  • a through hole 11a extending in the vertical direction is formed approximately at the center of the first fixed portion 11.
  • the upper surface of the first fixed portion 11 abuts on the upper surface of the header board 2, more specifically, on the lower surface of the extending portion 30b of the upper rail 30.
  • the first fixed portion 11 is fixed to the lower surface of the extending portion 30b of the upper rail 30 through the through hole 11a by welding or the like.
  • first fixed point P1 The point at which the first fixed portion 11 of the bracket 10 and the extension portion 30b of the upper rail 30 (the upper part of the header board 2) are fixed in this way is called a first fixed point P1.
  • the fixing method at the first fixing point P1 is not limited to welding, and bolt fixing or the like may be employed.
  • the second fixed portion 12 is located at the lower end side of the bracket 10 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 fixed portion 12 is slightly inclined outward in the vehicle width direction toward the bottom, thereby enhancing the stress dispersion effect.
  • a through hole 12a extending in the vehicle width direction is formed approximately at the center of the second fixed portion 12.
  • the outer surface of the second fixed portion 12 in the vehicle width direction is located at a predetermined location of the side gate 3 located forward of the header board 2, more specifically, a front reinforcement 40 provided at the predetermined location of the side gate 3. It comes into contact with the inside surface in the vehicle width direction.
  • the second fixed portion 12 is fixed to the inner surface of the front reinforcement 40 in the vehicle width direction by welding or the like via 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 fixed in this manner is referred to as 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 employed.
  • the connecting portion 13 is inclined in the vehicle vertical direction as it goes in the vehicle width direction between the first fixed portion 11 and the second fixed portion 12.
  • the connecting portion 13 slopes downward as it goes outward in the vehicle width direction.
  • the width of the connecting portion 13 in the front-rear direction increases as it goes downward. More specifically, the connecting portion 13 mainly bulges forward as it goes downward.
  • the second fixed portion 12 that connects to the lower end of the connecting portion 13 bulges out further forward than the first fixed portion 11 as a whole.
  • the second fixing point P2 formed by the through hole 12a provided approximately at the center of the second fixed portion 12 and the second fixing point P2 formed by the through hole 12a provided approximately at the center of the first fixed portion 11 is 11a is located below and in front of the first fixed point P1. 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 front-back direction and by a distance L2 in the vertical direction.
  • the third fixing point P3 which is the point at which the upper rail 30, the front reinforcement 40, and the rear reinforcement 50 are fixed, is the first fixing point of the bracket 10 in the vehicle vertical direction. It is located between the portion 11 and the second fixed portion 12. Thereby, the third fixed point P3 is located between the first fixed point P1 and the second fixed point P2 in the vehicle vertical direction.
  • the connecting portion 13 includes a first connecting portion 14 disposed above and a second connecting portion 15 disposed below.
  • the first connecting part 14 connects to the first fixed part 11.
  • the first connecting portion 14 has a substantially flat plate shape that slopes downward as it goes outward in the vehicle width direction from the first fixed portion 11 .
  • the second connecting portion 15 connects the first connecting portion 14 and the second fixed portion 12 to each other. Like the first connecting portion 14, the second connecting portion 15 slopes downward as it goes outward in the vehicle width direction, but unlike the first connecting portion 14, the second connecting portion 15 has a A plurality of ridge lines 71 to 78 are formed by bending in the directions.
  • the second connecting portion 15 includes a plurality of inclined portions 21 to 25 that are partitioned by a plurality of ridge lines 71 to 78 and inclined in approximately the same direction.
  • the plurality of slopes 21 to 25 have multifaceted structures with different slope angles, slope directions, shapes, etc., and include a first slope 21, a second slope 22, a third slope 23, a fourth slope 24, and a fifth slope portion 25 .
  • the first inclined portion 21 is located above the second connecting portion 15 and connects to the lower end of the first connecting portion 14 .
  • the second inclined portion 22 is located at the center of the second connecting portion 15 .
  • the third inclined part 23 is located in front of the second inclined part 22.
  • the fourth inclined part 24 is located behind the second inclined part 22.
  • the fifth inclined portion 25 is located at the lower part of the second connecting portion 15 and connects to the upper end of the second fixed portion 12 .
  • the first ridgeline 71 extends substantially parallel to the vehicle longitudinal direction and partitions the first slope portion 21 and the second slope portion 22 .
  • the second ridgeline 72 is connected to the first ridgeline 71 and extends upward and inward in the vehicle width direction as it goes forward.
  • the second ridgeline 72 partitions the first slope portion 21 and the third slope portion 23.
  • the third ridgeline 73 is connected to the first ridgeline 71 and extends upward and inward in the vehicle width direction toward the rear.
  • the third ridgeline 73 partitions the first slope portion 21 and the fourth slope portion 24 .
  • the fourth ridgeline 74 is connected to the first ridgeline 71 and the second ridgeline 72, and extends outward in the vehicle width direction as it goes downward.
  • the fourth ridgeline 74 partitions the second slope portion 22 and the third slope portion 23.
  • the fifth ridgeline 75 connects with the first ridgeline 71 and the third ridgeline 73, and extends outward in the vehicle width direction as it goes downward.
  • the fifth ridgeline 75 is substantially parallel to the fourth ridgeline 74.
  • the fifth ridgeline 75 partitions the second slope portion 22 and the fourth slope portion 24 .
  • the sixth ridgeline 76 extends substantially parallel to the vehicle longitudinal direction and partitions the second slope portion 22 and the fifth slope portion 25 .
  • the sixth ridgeline 76 is substantially parallel to the first ridgeline 71.
  • the seventh ridgeline 77 is connected to the fourth ridgeline 74 and the sixth ridgeline 76, and extends downward and outward in the vehicle width direction as it goes forward.
  • the seventh ridgeline 77 separates the third slope portion 23 and the fifth slope portion 25.
  • the eighth ridgeline 78 is connected 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 ridgeline 78 separates the fourth slope portion 24 and the fifth slope portion 25.
  • a second inclined portion 22 having a substantially rectangular shape in side view is arranged at the center, and first, third, fourth, and fifth inclined portions 21 having a substantially trapezoidal shape in side view are arranged around the second inclined portion 22. , 23, 24, and 25 are arranged.
  • the second inclined part 22 at the center has a shape that projects most in the thickness direction (outside in the vehicle width direction) of the bracket 10. In this way, since the connecting portion 13 is provided with the bending structure consisting of the plurality of ridge lines 71 to 78, the rigidity of the bracket 10 can be increased.
  • FIG. 13 is a partially cutaway side view of the fixed connection portion A when viewed from the vehicle width direction.
  • a bracket 10 is provided to connect the header board 2 and the side gate 3 to reinforce the connection portion.
  • the bracket 10 of this embodiment has a first fixed part 11 provided on one side of the bracket 10 and fixed to the upper part (upper rail 30) of the header board 2, and a first fixed part 11 provided on the other side of the bracket 10 and fixed to the header board 2.
  • It has a second fixed portion 12 fixed to a predetermined location (front reinforcement 40) of the side gate 3 located further forward of the vehicle than 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 fixed portion 11 and the second fixed portion 12 can receive part of the external force as a shearing force, and the load on the bracket 10 can be reduced.
  • the bracket 10 is located outside the storage area of the vehicle cargo box 1, and the storage capacity of the vehicle cargo box 1 can be increased. Furthermore, since the bracket 10 is plate-shaped, it can be made lighter.
  • the bracket 10 has a connecting portion 13 that connects the first fixed portion 11 and the second fixed portion 12 and is inclined in the vehicle vertical direction as it goes in the vehicle width direction. Therefore, the load on the bracket 10 can be distributed. Note that, as shown by the broken line D in FIG. The load will be concentrated on the corner that connects the fixed part 11 and the second fixed part 12. In this case, it becomes necessary to increase the strength of the bracket 10 itself, and increasing the plate thickness or adding a bead shape causes an increase in weight and cost, which is not preferable.
  • the first fixed portion 11 and the second fixed portion 12 connected at the connecting portion 13 are offset not only in the vehicle longitudinal direction but also in the vehicle vertical direction and vehicle width direction.
  • the positional relationship between the first fixed point P1) and the second fixed part 12 (second fixed point P2) is three-dimensional. Therefore, the stress generated in the first fixed portion 11 (first fixed point P1) and the second fixed portion 12 (second fixed 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 further enhanced, and the deformation prevention effect can be enhanced.
  • a first fixing point P1 where the first fixed part 11 of the bracket 10 and the upper part of the header board 2 (upper rail 30) are fixed, and a predetermined point P1 where the second fixed part 12 of the bracket 10 and the side gate 3 (front reinforcement) are fixed. 40) and the second fixed point P2 to which are fixed are offset in the longitudinal direction of the vehicle. Therefore, external force can be efficiently received.
  • a force F3 that causes the extension portion 30b of the upper rail 30 to deform in a floating manner acts on it, the load on the bracket 10 can be reduced.
  • 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 rear of the vehicle and are vertical, making it difficult to receive the load efficiently.
  • an upper rail 30 (first reinforcing member) having a bent cross-sectional shape is provided along the vehicle width direction, and the first fixed portion 11 of the bracket 10 is attached to the upper rail 30. 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.
  • a front reinforcement 40 (second reinforcing member) is provided at a predetermined location of the side gate 3, and the second fixed portion 12 of the bracket 10 is fixed to the front reinforcement 40. Therefore, predetermined parts of the header board 2 that tend to be weak parts can be reinforced by the front reinforcement 40 in addition to the bracket 10.
  • a rear reinforcement 50 (third reinforcing member) is provided on the side gate 3 at a position further rearward of the vehicle than the header board 2. 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. Therefore, the front reinforcement 40 In addition to being fixed to the upper rail 30 by the bracket 10, the bracket 10 is also fixed to the upper rail 30 and the rear reinforcement 50 by being sandwiched, so that the load on the bracket 10 can be distributed.
  • the third fixing point P3 to which the protruding piece 41 of the front reinforcement 40 and the rear reinforcement 50 are fixed is the first fixing part 11 (first fixing point P1) and the second fixing part of the bracket 10 in the vehicle vertical direction. 12 (second fixed point P2). Therefore, the load can be distributed by fixing at three points, and the three fixing points P1, P2, and P3 are arranged compactly. These three fixed points P1, P2, and P3 are directly connected to the bracket 10 and the three reinforcing members (upper rail 30, front reinforcement 40, and rear reinforcement 50), so the connecting fixed portion A The overall rigidity can be increased.
  • the three fixed points P1, P2, and P3 are three-dimensionally arranged offset in the longitudinal direction, vertical direction, and vehicle width direction, so that they can cope with external forces in all directions. This can enhance the dispersion function and improve the effect of suppressing deformation.
  • the connecting portion 13 of the bracket 10 has ridgelines 71 to 78 formed by bending the bracket 10 in the thickness direction. This improves the rigidity of the bracket 10.
  • the connecting portion 13 of the bracket 10 has a structure in which the first to fifth sloped portions 21 to 25 are provided, but the number of sloped portions is not limited to this.
  • the angle of inclination, shape, etc. of each inclined portion are not limited to those shown in the drawings.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

This structure for reinforcing a vehicle cargo box comprises: a header board constituting a wall surface on the vehicle front side of the vehicle cargo box; a side gate disposed to cross the header board; and a plate-like fixing member which connects the header board and the side gate. The fixing member has a first fixed portion which is provided to one side of the fixing member and is fixed to an upper section of the header board, and a second fixed portion which is provided to the other side of the fixing member and is fixed to a predetermined location on the side gate positioned further on the vehicle front side than the header board.

Description

車両荷箱の補強構造Reinforcement structure for vehicle cargo boxes
　本発明は、車両荷箱の補強構造に関する。 The present invention relates to a reinforcing structure for a vehicle cargo box.
　従来、乗員が乗車するキャブ後方に箱型の車両荷箱を備える車両がある。この種の車両においては、車両荷箱の補強を図る技術が開示されている。例えば、特許文献１には、荷台の側壁の前縁に沿って該荷台の床よりも下方にまで延びて該側壁が結合されるデッキフロントピラーと、デッキフロントピラーのうち荷台の床よりも上側でキャビンと結合する上側結合部と、デッキフロントピラーのうち荷台の床よりも下側でキャビンと結合する下側結合部と、を備える車両用荷台結合構造が開示されている。 Conventionally, there are vehicles that are equipped with a box-shaped vehicle cargo box behind the cab where passengers ride. In this type of vehicle, techniques for reinforcing the vehicle cargo box have been disclosed. For example, Patent Document 1 describes a deck front pillar that extends below the floor of the loading platform along the front edge of the side wall of the loading platform and is connected to the side wall, and a deck front pillar that extends below the floor of the loading platform along the front edge of the loading platform, and A vehicle cargo bed coupling structure is disclosed that includes an upper coupling portion that couples to the cabin at a portion of the deck front pillar and a lower coupling portion that couples to the cabin at a portion of the deck front pillar below the floor of the cargo platform.
日本国特開２０１９－７３１９７号公報Japanese Patent Application Publication No. 2019-73197
　特許文献１に開示された技術においては、荷台の床に交差して上下に延びるデッキフロントピラーを利用して、荷台の側壁のキャビンへの結合剛性を向上させる、というものである。このように剛性向上のための結合部が上側及び下側の両方に設けられた構成では、重量が増大してしまう問題があった。 The technology disclosed in Patent Document 1 uses a deck front pillar that extends vertically across the floor of the cargo platform to improve the rigidity of the side wall of the cargo platform to the cabin. In such a configuration in which the joint portions for improving rigidity are provided on both the upper and lower sides, there is a problem in that the weight increases.
　本発明はこのような課題に鑑みてなされたものであり、その目的とするところは、重量の増大が回避でき且つ効果的な補強が可能な車両荷箱構造を提供することにある。 The present invention has been made in view of these problems, and its purpose is to provide a vehicle cargo box structure that can avoid an increase in weight and can be effectively reinforced.
　上記の目的を達成するため、本発明は、例えば以下の構成を有する。
（１）　車両荷箱における車両前方の壁面を構成するヘッダーボードと、
　前記ヘッダーボードに交差して配置されるサイドゲートと、
　前記ヘッダーボードと、前記サイドゲートと、を連結する板状の固定部材と、
を備える車両荷箱の補強構造であって、
　前記固定部材は、
　前記固定部材の一方側に設けられ、前記ヘッダーボードの上部に固定される第１固定部分と、
　前記固定部材の他方側に設けられ、前記ヘッダーボードよりも車両前方に位置する前記サイドゲートの所定箇所に固定される第２固定部分と、
を有する、
車両荷箱の補強構造。
（２）　（１）に記載の車両荷箱の補強構造であって、
　前記固定部材は、第１固定部分と第２固定部分とを接続し、車幅方向に向かうにつれて車両上下方向に傾斜する接続部を有する、
車両荷箱の補強構造。
（３）　（１）又は（２）に記載の車両荷箱の補強構造であって、
　前記固定部材の前記第１固定部分と前記ヘッダーボードの前記上部とが固定される第１固定点と、前記固定部材の前記第２固定部分と前記サイドゲートの前記所定箇所とが固定される第２固定点とが、車両前後方向にオフセットしている、
車両荷箱の補強構造。
（４）　（１）～（３）の何れか一項に記載の車両荷箱の補強構造であって、
　前記ヘッダーボードの前記上部には、横断面形状が屈曲形状をなす第１補強部材が、車幅方向に沿って設けられ、
　前記固定部材の前記第１固定部分は、前記第１補強部材に固定される、
車両荷箱の補強構造。
（５）　（１）～（４）の何れか一項に記載の車両荷箱の補強構造であって、
　前記サイドゲートの前記所定箇所には、第２補強部材が設けられ、
　前記固定部材の前記第２固定部分は、前記第２補強部材に固定される、
車両荷箱の補強構造。
（６）　（１）～（５）の何れか一項に記載の車両荷箱の補強構造であって、
　前記サイドゲートには、前記ヘッダーボードよりも車両後方に、第３補強部材が設けられる、
車両荷箱の補強構造。
（７）　（１）～（３）の何れか一項に記載の車両荷箱の補強構造であって、
　前記ヘッダーボードの前記上部には、横断面形状が屈曲形状をなす第１補強部材が、車幅方向に沿って設けられ、
　前記固定部材の前記第１固定部分は、前記第１補強部材に固定され、
　前記サイドゲートの前記所定箇所には、第２補強部材が設けられ、
　前記固定部材の前記第２固定部分は、前記第２補強部材に固定され、
　前記サイドゲートには、前記ヘッダーボードよりも車両後方に、第３補強部材が設けられ、
　前記第２補強部材は、車幅方向内側に延びる突片を有し、
　前記突片は、前記第１補強部材と前記第３補強部材とで挟み込まれている、
車両荷箱の補強構造。
（８）　（７）に記載の車両荷箱の補強構造であって、
　前記第２補強部材の前記突片と前記第３補強部材とが固定される第３固定点は、車両上下方向において前記第１固定部分と前記第２固定部分との間に位置する、
車両荷箱の補強構造。
（９）　（２）に記載の車両荷箱の補強構造であって、
　前記接続部には、前記固定部材の厚み方向への屈曲による稜線が形成されている、
車両荷箱の補強構造。 In order to achieve the above object, the present invention has, for example, the following configuration.
(1) A header board that constitutes the wall in front of the vehicle in the vehicle cargo 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 cargo box, comprising:
The fixing member is
a first fixing part provided on one side of the fixing member and fixed to the top of the header board;
a second fixing portion provided on the other side of the fixing member and fixed to a predetermined location of the side gate located further forward of the vehicle than the header board;
has,
Reinforcement structure for vehicle cargo boxes.
(2) The reinforcing structure for the vehicle cargo box according to (1),
The fixing member connects the first fixing part and the second fixing part, and has a connecting part that slopes in the vehicle vertical direction as it goes in the vehicle width direction.
Reinforcement structure for vehicle cargo boxes.
(3) The reinforcing structure for a vehicle cargo box according to (1) or (2),
a first fixing point to which the first fixing part of the fixing member and the upper part of the header board are fixed; and a first fixing point to which the second fixing part of the fixing member and the predetermined location of the side gate are fixed. The two fixed points are offset in the longitudinal direction of the vehicle.
Reinforcement structure for vehicle cargo boxes.
(4) The reinforcing structure for a vehicle cargo box according to any one of (1) to (3),
A first reinforcing member having a bent cross-sectional shape is provided at the upper part of the header board along the vehicle width direction,
the first fixed portion of the fixed member is fixed to the first reinforcing member;
Reinforcement structure for vehicle cargo boxes.
(5) The reinforcing structure for a vehicle cargo 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;
Reinforcement structure for vehicle cargo boxes.
(6) The reinforcing structure for a vehicle cargo box according to any one of (1) to (5),
A third reinforcing member is provided on the side gate at a position further rearward of the vehicle than the header board.
Reinforcement structure for vehicle cargo boxes.
(7) The reinforcing structure for a vehicle cargo box according to any one of (1) to (3),
A first reinforcing member having a bent cross-sectional shape is provided at the upper part 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, and
The second reinforcing member has a protrusion extending inward in the vehicle width direction,
the protruding piece is sandwiched between the first reinforcing member and the third reinforcing member;
Reinforcement structure for vehicle cargo boxes.
(8) The reinforcing structure for the vehicle cargo box according to (7),
A third fixing point to which the protruding piece of the second reinforcing member and the third reinforcing member are fixed is located between the first fixing part and the second fixing part in the vehicle vertical direction.
Reinforcement structure for vehicle cargo boxes.
(9) The reinforcing structure for the vehicle cargo box according to (2),
A ridge line is formed in the connecting portion by bending the fixing member in a thickness direction.
Reinforcement structure for vehicle cargo boxes.
　本発明の荷箱構造車によれば、重量の増大が回避でき且つ効果的な補強が可能な車両荷箱構造を提供することができる。 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.
図１は、本発明の車両荷箱の補強構造が適用され得る、車両荷箱の斜視図である。FIG. 1 is a perspective view of a vehicle cargo box to which the vehicle cargo box reinforcing structure of the present invention can be applied. 図２は、本発明の車両荷箱の補強構造が適用され得る、車両荷箱の斜視図である。FIG. 2 is a perspective view of a vehicle cargo box to which the vehicle cargo box reinforcement structure of the present invention can be applied. 図３は、ヘッダーボードとサイドゲートとの連結固定部分の周辺を示す斜視図である。FIG. 3 is a perspective view showing the periphery of the connecting and fixing portion between the header board and the side gate. 図４は、図３の要部拡大図である。FIG. 4 is an enlarged view of the main part of FIG. 3. 図５は、ヘッダーボードとサイドゲートとの連結固定部分の周辺を、ヘッダーボード２を省略して示す斜視図である。FIG. 5 is a perspective view showing the periphery of the connecting and fixing portion between the header board and the side gate, with the header board 2 omitted. 図６は、ヘッダーボードとサイドゲートとの連結固定部分の周辺を示す上面図である。FIG. 6 is a top view showing the periphery of the connecting and fixing portion between the header board and the side gate. 図７は、図６の要部拡大図である。FIG. 7 is an enlarged view of the main part of FIG. 図８は、ヘッダーボードとサイドゲートとの連結固定部分の周辺を後方から見た図である。FIG. 8 is a rear view of the periphery of the connecting and fixing portion between the header board and the side gate. 図９は、ブラケットの斜視図である。FIG. 9 is a perspective view of the bracket. 図１０は、ブラケットを車両後方から見た図である。FIG. 10 is a diagram of the bracket seen from the rear of the vehicle. 図１１は、ブラケットを車幅方向から見た図である。FIG. 11 is a diagram of the bracket viewed from the vehicle width direction. 図１２は、ブラケットを車両上方から見た図である。FIG. 12 is a diagram of the bracket viewed from above the vehicle. 図１３は、連結固定部分を車幅方向から見て、一部破断して示す側面図である。FIG. 13 is a partially cutaway side view of the connecting and fixed portion viewed from the vehicle width direction.
　以下、本発明の一実施形態に係る車両荷箱の補強構造について、図面を参照して説明する。なお、各図には、車両の運転手（乗員）から見た方向である、車両前後方向、車両左右方向（車幅方向）、車両上下方向の向きが矢印にて記載されている。また、図９～図１２に示すブラケットについては、車両に取付けられた状態の向きを表示する。また、本実施形態の車両荷箱の補強構造が適用される車両の種類は特に限定されず、例えば、ガソリン車、電気自動車（ＥＶ）、ハイブリッド車（ＨＥＶ）、プラグインハイブリッド車（ＰＨＥＶ）等に適用できる。 Hereinafter, a reinforcing structure for a vehicle cargo box according to an embodiment of the present invention will be described with reference to the drawings. In addition, in each figure, the directions of the vehicle longitudinal direction, the vehicle left-right direction (vehicle width direction), and the vehicle vertical direction, which are the directions seen from the driver (occupant) of the vehicle, are indicated by arrows. Furthermore, for the brackets shown in FIGS. 9 to 12, the orientations when attached to the vehicle are shown. Further, the types of vehicles to which the vehicle cargo box reinforcement structure of the present embodiment is applied are not particularly limited, and include, for example, gasoline vehicles, electric vehicles (EV), hybrid vehicles (HEV), plug-in hybrid vehicles (PHEV), etc. Applicable to
　図１及び図２は、本発明の車両荷箱の補強構造が適用され得る、車両荷箱１の斜視図である。図１及び図２の車両荷箱１は、細部が異なるが、概要は同様の構成であるので同一の符号を付す。 1 and 2 are perspective views of a vehicle cargo box 1 to which the vehicle cargo box reinforcing structure of the present invention can be applied. Although the vehicle cargo boxes 1 in FIGS. 1 and 2 differ in detail, they have the same general configuration and are therefore given the same reference numerals.
　車両荷箱１は、車両のキャビン後方に配置される。車両荷箱１は、前方のヘッダーボード２と、左右の一対のサイドゲート３，３と、後方のテールゲート４と、下方のフロアパネル５と、を有する。 The vehicle cargo box 1 is placed behind the cabin of the vehicle. The vehicle cargo box 1 includes a front header board 2, a pair of left and right side gates 3, 3, a rear tailgate 4, and a lower floor panel 5.
　ヘッダーボード２は、車両荷箱１における前方側の壁面を構成し、左右方向（車幅方向）に延びる。
　一対のサイドゲート３，３は、ヘッダーボード２に交差して配置される。具体的には、一対のサイドゲート３，３は、ヘッダーボード２の左右両端部に接続され、主に車両後方に延びて、車両荷箱１の左右両側の壁面を構成する。それぞれのサイドゲート３の下端部には、ホイールアーチ３ａが形成される。
　テールゲート４は、一対のサイドゲート３，３の後方端部に接続され、左右方向に延びる。
　フロアパネル５は、ヘッダーボード２と、一対のサイドゲート３，３と、テールゲート４と、で囲まれた空間の下方側を閉じる。 The header board 2 constitutes the front wall surface of the vehicle cargo 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 both left and right ends of the header board 2, extend mainly toward the rear of the vehicle, and constitute the left and right wall surfaces of the vehicle cargo box 1. A wheel arch 3a is formed at the lower end of each side gate 3.
The tailgate 4 is connected to the rear end portions of the pair of side gates 3, 3, and extends in the left-right direction.
The floor panel 5 closes the lower side of the space surrounded by the header board 2, the pair of side gates 3, and the tail gate 4.
　このように、車両荷箱１は、ヘッダーボード２と、一対のサイドゲート３，３と、テールゲート４と、フロアパネル５と、によって構成された上面視矩形状の収容空間である。 As described above, the vehicle cargo box 1 is a rectangular storage space when viewed from above, which is configured by the header board 2, the pair of side gates 3, 3, the tail gate 4, and the floor panel 5.
　ヘッダーボード２の上部には、車幅方向に沿ってアッパーレール３０が溶接等によって固定される。図１の例では、アッパーレール３０の上部に、ガードフレーム６０が固定される。 An upper rail 30 is fixed to the top of the header board 2 along the vehicle width direction by welding or the like. In the example of FIG. 1, a guard frame 60 is fixed to the upper part of the upper rail 30.
　ヘッダーボード２、一対のサイドゲート３、及びテールゲート４は、フロアパネル５に立脚するように取り付けられている。なお、テールゲート４の下端部は、フロアパネル５に対して図１のように回動可能に設けられており、荷物を車両荷箱１に出し入れし易いように構成されている。 The header board 2, the pair of side gates 3, and the tailgate 4 are attached to stand on the floor panel 5. The lower end of the tailgate 4 is rotatably provided with respect to the floor panel 5 as shown in FIG. 1, and is configured to facilitate loading and unloading of luggage into the vehicle cargo box 1.
　図２に示すように、テールゲート４が閉じられた状態で、車両荷箱１内に多くの荷物を積んだ場合、ヘッダーボード２、サイドゲート３、及びテールゲート４には、荷箱内側から荷箱外側に向うような外向きの力Ｆ１（車両荷箱１の中央から４辺に対して略直角に外側に向く力を想定）が加わる。この外向きの力Ｆ１によって、ヘッダーボード２の車幅方向両端部と、一対のサイドゲート３，３の車幅方向内側面と、の連結部分には、当該連結部分を開くように荷重が負荷される。 As shown in FIG. 2, when the tailgate 4 is closed and a large amount of cargo is loaded into the vehicle cargo box 1, the header board 2, side gate 3, and tailgate 4 are loaded from inside the cargo box. An outward force F1 directed toward the outside of the cargo box (assuming a force directed outward from the center of the vehicle cargo box 1 at a substantially right angle to the four sides) 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 in the vehicle width direction of the pair of side gates 3, 3 to open the connecting portion. be done.
　また、例えば、一対のサイドゲート３，３間にロープを掛けて車幅方向に結束したり、またはヘッダーボード２とテールゲート４間にロープを掛けて前後方向に結束した場合には、荷箱外側から荷箱内側に向うような内向きの力Ｆ２が加わる。この内向きの力Ｆ２によって、ヘッダーボード２の車幅方向両端部と、一対のサイドゲート３，３の車幅方向内側面と、の連結部分には、当該連結部分を閉じるように荷重が負荷される。 In addition, for example, if a rope is hung between a pair of side gates 3 and 3 to bind them in the vehicle width direction, or a rope is hung between the header board 2 and tailgate 4 to bind them in the longitudinal direction, the cargo box An inward force F2 is applied from the outside toward the inside of the cargo box. 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 in the vehicle width direction of the pair of side gates 3, 3 so as to close the connecting portion. be done.
　このように、ヘッダーボード２と一対のサイドゲート３，３との連結部分には、荷重が負荷されやすく、特に当該連結部分のうち上端部が弱部となりやすい。そこで、本実施形態の車両荷箱１においては、ヘッダーボード２と一対のサイドゲート３，３とが、これらとは別体の板状のブラケット１０（固定部材）によって連結されて補強される。より具体的には、ヘッダーボード２の車幅方向両端部の上端部と一対のサイドゲート３，３とは、後述するブラケット１０（図３～図８参照）を含む連結固定部分Ａ，Ａを介して連結されて補強されている。なお、図１及び図２にはブラケット１０は不図示である。 As described above, a load is easily applied to the connecting portion between the header board 2 and the pair of side gates 3, and the upper end of the connecting portion is particularly likely to become a weak portion. Therefore, in the vehicle cargo box 1 of this embodiment, the header board 2 and the pair of side gates 3, 3 are connected and reinforced by a separate plate-shaped bracket 10 (fixing member). More specifically, the upper end portions of both ends in the vehicle width direction of the header board 2 and the pair of side gates 3 have connecting fixed portions A, A including a bracket 10 (see FIGS. 3 to 8), which will be described later. They are connected and reinforced through. Note that the bracket 10 is not shown in FIGS. 1 and 2.
　図３は、ヘッダーボード２とサイドゲート３との連結固定部分Ａの周辺を示す斜視図である。図４は、図３の要部拡大図である。図５は、ヘッダーボード２とサイドゲート３との連結固定部分Ａの周辺を、ヘッダーボード２を省略して示す斜視図である。図６は、ヘッダーボード２とサイドゲート３との連結固定部分Ａの周辺を示す上面図である。図７は、図６の要部拡大図である。図８は、ヘッダーボード２とサイドゲート３との連結固定部分Ａの周辺を後方から見た図である。 FIG. 3 is a perspective view showing the vicinity of the connecting and fixing portion A between the header board 2 and the side gate 3. FIG. 4 is an enlarged view of the main part of FIG. 3. FIG. 5 is a perspective view showing the periphery of a connecting and fixed 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 vicinity of the connecting and fixing portion A between the header board 2 and the side gate 3. As shown in FIG. FIG. 7 is an enlarged view of the main part of FIG. FIG. 8 is a view of the periphery of the connecting and fixing portion A between the header board 2 and the side gate 3, seen from the rear.
　ヘッダーボード２と一対のサイドゲート３，３との左右の連結固定部分Ａ，Ａは、車幅方向において対称である。したがって、以下の説明では、右側の連結固定部分Ａのみを図示して説明する。 The left and right connecting and fixing parts 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 side connecting and fixing portion A will be illustrated and explained.
　図３～図８に示すように、連結固定部分Ａにおいては、ヘッダーボード２とサイドゲート３とを連結する板状の固定部材としてのブラケット１０が設けられている。ブラケット１０の詳細については、後述する。 As shown in FIGS. 3 to 8, in the connecting and fixing portion A, a bracket 10 is provided as a plate-shaped fixing member that connects the header board 2 and the side gate 3. Details of the bracket 10 will be described later.
　ヘッダーボード２の上端部２ａ（上部）には、横断面形状が屈曲形状をなす第１補強部材としてのアッパーレール３０が、車幅方向に沿って設けられる。アッパーレール３０は、ヘッダーボード２に溶接等によって固定される。アッパーレール３０は、ヘッダーボード２の前面に沿うように上下方向に延びる基部３０ａと、基部３０ａの上端部から前方に延びる延在部３０ｂと、を備える。延在部３０ｂの前端部は下方及び後方に屈曲したフック形状とされており、車両荷箱１に載置した荷物を固定するためのロープ等を固定可能である。このように、アッパーレール３０は、概ね断面逆Ｌ字形状とされている。第１補強部材としてのアッパーレール３０が設けられることで、アッパーレールがヘッダーボード２の上端部２ａが補強される。 An upper rail 30 serving as a first reinforcing member having a bent cross-sectional shape is provided at the upper end 2a (upper part) 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 in the vertical direction along the front surface of the header board 2, and an extension portion 30b that extends forward from the upper end of the base portion 30a. The front end portion of the extension portion 30b has a hook shape bent downward and backward, and a rope or the like for securing cargo placed in the vehicle cargo box 1 can be fixed thereto. In this way, the upper rail 30 has a generally inverted L-shaped cross section. By providing the upper rail 30 as the first reinforcing member, the upper end portion 2a of the header board 2 is reinforced by the upper rail.
　また、サイドゲート３は、全体として車幅方向外側に膨出するように湾曲しており、ヘッダーボード２よりも車両前方に位置する前側部分３ｂと、ヘッダーボード２よりも車両後方に位置する後側部分３ｃと、を有する。サイドゲート３の所定箇所としての前側部分３ｂの車幅方向内側面には、第２補強部材としての前側リンフォース４０が固定される。また、サイドゲート３には、ヘッダーボード２よりも車両後方に、第３補強部材としての後側リンフォース５０が固定される。 The side gate 3 as a whole is curved so as to bulge outward in the vehicle width direction, and has a front portion 3b located in front of the vehicle than the header board 2, and a rear portion 3b located in the rear of the vehicle than the header board 2. and a side portion 3c. A front reinforcement 40 as a second reinforcing member is fixed to the inner surface in the vehicle width direction of the front portion 3b as a predetermined location of the side gate 3. Further, a rear reinforcement 50 serving as a third reinforcing member is fixed to the side gate 3 behind the header board 2 in the vehicle.
　前側リンフォース４０の後端部は、ブラケット１０よりも車両後方に位置し、さらにアッパーレール３０よりも僅かに車両後方に位置する。そして、前側リンフォース４０の後端部の上端部には、車幅方向内側に延びる突片４１が形成される。突片４１は、車両前後方向に略垂直（車両上下方向及び車幅方向に略平行）に延びる平板状である。突片４１は、ヘッダーボード２と車両前後において略同一位置に配置され、且つ、ヘッダーボード２よりも上方に配置される。突片４１の前面は、アッパーレール３０の基部３０ａの後面に当接する。 The rear end portion of the front reinforcement 40 is located further rearward of the vehicle than the bracket 10 and furthermore slightly rearward of the vehicle than the upper rail 30. A projecting piece 41 extending inward in the vehicle width direction is formed at the upper end of the rear end of the front reinforcement 40. The protruding piece 41 has a flat plate shape that extends substantially perpendicularly to the vehicle longitudinal direction (substantially parallel to the vehicle vertical direction and 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 30a of the upper rail 30.
　後側リンフォース５０の前端部の上端部には、車幅方向内側に延びる突壁５１が形成される。突壁５１は、車両前後方向に略垂直（車両上下方向及び車幅方向に略平行）に延びる平板状である。突壁５１の前面は、突片４１の後面と当接する。 A projecting wall 51 that extends 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 that extends substantially perpendicularly to the vehicle longitudinal direction (substantially parallel to the vehicle vertical direction and vehicle width direction). The front surface of the projecting wall 51 contacts the rear surface of the projecting piece 41.
　このように、前側リンフォース４０の突片４１は、アッパーレール３０の基部３０ａの後面と、後側リンフォース５０の突壁５１の前面と、で前後方向に挟み込まれている。ここで、突片４１には、突片４１を前後方向に貫通する突片孔４１ａが形成されており、突壁５１には、突壁５１を前後方向に貫通する突壁孔５１ａが設けられている。そして、アッパーレール３０の基部３０ａと突片孔４１ａ及び突壁孔５１ａを合わせるようにした状態で、突片孔４１ａ及び突壁孔５１ａの部分が溶接されることで、アッパーレール３０と前側リンフォース４０と後側リンフォース５０とが固定される。このように、アッパーレール３０と前側リンフォース４０と後側リンフォース５０とが固定される点を、第３固定点Ｐ３と呼ぶ。なお、第３固定点Ｐ３における固定方法は、溶接に限らず、ボルト固定等を採用してもよい。 In this way, the projecting piece 41 of the front reinforcement 40 is sandwiched between the rear surface of the base 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 protrusion piece 41 is formed with a protrusion hole 41a that penetrates the protrusion piece 41 in the front-back direction, and the protrusion wall 51 is provided with a protrusion wall hole 51a that penetrates the protrusion wall 51 in the front-rear direction. ing. Then, with the base 30a of the upper rail 30 aligned with the protrusion hole 41a and the protrusion wall hole 51a, the protrusion hole 41a and the protrusion wall hole 51a are welded, so that the upper rail 30 and the front link The force 40 and the rear reinforcement force 50 are fixed. The point at which the upper rail 30, front reinforcement 40, and rear reinforcement 50 are fixed in this way is called a third fixation point P3. Note that the fixing method at the third fixing point P3 is not limited to welding, and bolt fixing or the like may be employed.
　図９は、ブラケット１０の斜視図である。図１０は、ブラケット１０を車両後方から見た図である。図１１は、ブラケット１０を車幅方向から見た図である。図１２は、ブラケット１０を車両上方から見た図である。 FIG. 9 is a perspective view of the bracket 10. FIG. 10 is a diagram of the bracket 10 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 diagram of the bracket 10 viewed from above the vehicle.
　図３～図８並びに図９～図１２に示すように、ブラケット１０は、ブラケット１０の一方側に設けられ、ヘッダーボード２の上部に固定される第１固定部分１１と、ブラケット１０の他方側に設けられ、ヘッダーボード２よりも車両前方に位置するサイドゲート３の所定箇所に固定される第２固定部分１２と、第１固定部分１１と第２固定部分１２とを接続する接続部１３と、を有する板状の固定部材である。 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 upper part of the header board 2, and a first fixing portion 11 on the other side of the bracket 10. a second fixed part 12 which is provided at a predetermined location of the side gate 3 located in front of the header board 2 in the vehicle; and a connecting part 13 which connects the first fixed part 11 and the second fixed part 12. It is a plate-shaped fixing member having .
　第１固定部分１１は、取付状態において、ブラケット１０の上端側に位置し、上下方向に略垂直（車幅方向及び前後方向に略平行）に延びる。第１固定部分１１の略中央には、上下方向に延びる貫通孔１１ａが形成される。第１固定部分１１の上面は、ヘッダーボード２の上部、より具体的にはアッパーレール３０の延在部３０ｂの下面に当接する。そして、第１固定部分１１は、アッパーレール３０の延在部３０ｂの下面に対して貫通孔１１ａを介して溶接等により固定される。このように、ブラケット１０の第１固定部分１１と、アッパーレール３０の延在部３０ｂ（ヘッダーボード２の上部）と、が固定される点を、第１固定点Ｐ１と呼ぶ。なお、第１固定点Ｐ１における固定方法は、溶接に限らず、ボルト固定等を採用してもよい。 In the installed state, the first fixed portion 11 is located on the upper end side of the bracket 10 and extends substantially perpendicularly in the up-down direction (substantially parallel to the vehicle width direction and the front-rear direction). A through hole 11a extending in the vertical direction is formed approximately at the center of the first fixed portion 11. The upper surface of the first fixed portion 11 abuts on the upper surface of the header board 2, more specifically, on the lower surface of the extending portion 30b of the upper rail 30. The first fixed portion 11 is fixed to the lower surface of the extending portion 30b of the upper rail 30 through the through hole 11a by welding or the like. The point at which the first fixed portion 11 of the bracket 10 and the extension portion 30b of the upper rail 30 (the upper part of the header board 2) are fixed in this way is called a first fixed point P1. Note that the fixing method at the first fixing point P1 is not limited to welding, and bolt fixing or the like may be employed.
　第２固定部分１２は、取付状態において、ブラケット１０の下端側に位置し、車幅方向に略垂直（上下方向及び前後方向に略平行）に延びる。厳密には図示の第２固定部分１２は、下方に向かうにしたがって、車幅方向外側に僅かに傾斜しており、応力分散効果が高められている。第２固定部分１２の略中央には、車幅方向に延びる貫通孔１２ａが形成される。第２固定部分１２の車幅方向外側面は、ヘッダーボード２よりも前方に位置するサイドゲート３の所定箇所、より具体的にはサイドゲート３の上記所定箇所に設けられた前側リンフォース４０の車幅方向内側面に当接する。そして、第２固定部分１２は、前側リンフォース４０の車幅方向内側面に対して貫通孔１２ａを介して溶接等によって固定される。このように、ブラケット１０の第２固定部分１２と、第２補強部材としての前側リンフォース４０と、が固定される点を、第２固定点Ｐ２と呼ぶ。なお、第２固定点Ｐ２における固定方法は、溶接に限らず、ボルト固定等を採用してもよい。 In the installed state, the second fixed portion 12 is located at the lower end side of the bracket 10 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 fixed portion 12 is slightly inclined outward in the vehicle width direction toward the bottom, thereby enhancing the stress dispersion effect. A through hole 12a extending in the vehicle width direction is formed approximately at the center of the second fixed portion 12. The outer surface of the second fixed portion 12 in the vehicle width direction is located at a predetermined location of the side gate 3 located forward of the header board 2, more specifically, a front reinforcement 40 provided at the predetermined location of the side gate 3. It comes into contact with the inside surface in the vehicle width direction. The second fixed portion 12 is fixed to the inner surface of the front reinforcement 40 in the vehicle width direction by welding or the like via 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 fixed in this manner is referred to as a second fixing point P2. Note that the fixing method at the second fixing point P2 is not limited to welding, and bolt fixing or the like may be employed.
　接続部１３は、第１固定部分１１と第２固定部分１２との間において、車幅方向に向かうにつれて、車両上下方向に傾斜する。本実施形態では、接続部１３は、車幅方向外側に向かうにつれて、下方に傾斜する。図１１に示すように、接続部１３の前後方向幅は、下方に向かうしたがって大きくなるように形成される。より詳細には、接続部１３は、下方に向かうにしたがって主に前方に膨出する。 The connecting portion 13 is inclined in the vehicle vertical direction as it goes in the vehicle width direction between the first fixed portion 11 and the second fixed portion 12. In this embodiment, the connecting portion 13 slopes downward as it goes outward in the vehicle width direction. As shown in FIG. 11, the width of the connecting portion 13 in the front-rear direction increases as it goes downward. More specifically, the connecting portion 13 mainly bulges forward as it goes downward.
　したがって、接続部１３の下端と接続する第２固定部分１２は、全体として、第１固定部分１１よりも前方に膨出する。これにより、第２固定部分１２の略中央に設けられた貫通孔１２ａ及び貫通孔１２ａが構成する第２固定点Ｐ２は、第１固定部分１１の略中央に設けられた貫通孔１１ａ及び貫通孔１１ａが構成する第１固定点Ｐ１よりも下方且つ前方に位置する。すなわち、図１１に示すように、第１固定点Ｐ１と、第２固定点Ｐ２とは、前後方向に距離Ｌ１だけオフセットし、上下方向に距離Ｌ２だけオフセットする。 Therefore, the second fixed portion 12 that connects to the lower end of the connecting portion 13 bulges out further forward than the first fixed portion 11 as a whole. As a result, the second fixing point P2 formed by the through hole 12a provided approximately at the center of the second fixed portion 12 and the second fixing point P2 formed by the through hole 12a provided approximately at the center of the first fixed portion 11 is 11a is located below and in front of the first fixed point P1. 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 front-back direction and by a distance L2 in the vertical direction.
　なお、図８等に示すように、アッパーレール３０と前側リンフォース４０と後側リンフォース５０とが固定される点である第３固定点Ｐ３は、車両上下方向において、ブラケット１０の第１固定部分１１と第２固定部分１２との間に位置する。これにより、第３固定点Ｐ３は、車両上下方向において、第１固定点Ｐ１と第２固定点Ｐ２との間に位置する。 In addition, as shown in FIG. 8 etc., the third fixing point P3, which is the point at which the upper rail 30, the front reinforcement 40, and the rear reinforcement 50 are fixed, is the first fixing point of the bracket 10 in the vehicle vertical direction. It is located between the portion 11 and the second fixed portion 12. Thereby, the third fixed point P3 is located between the first fixed point P1 and the second fixed point P2 in the vehicle vertical direction.
　接続部１３は、上方に配置された第１接続部１４と、下方に配置された第２接続部１５と、を含む。 The connecting portion 13 includes a first connecting portion 14 disposed above and a second connecting portion 15 disposed below.
　第１接続部１４は、第１固定部分１１と接続する。第１接続部１４は、第１固定部分１１から車幅方向外側に向かうにしたがって下方に傾斜する、略平板状である。 The first connecting part 14 connects to the first fixed part 11. The first connecting portion 14 has a substantially flat plate shape that slopes downward as it goes outward in the vehicle width direction from the first fixed portion 11 .
　第２接続部１５は、第１接続部１４及び第２固定部分１２を互いに接続する。第２接続部１５は、第１接続部１４と同様に車幅方向外側に向かうにしたがって下方に傾斜するが、第２接続部１５には、第１接続部１４とは異なり、ブラケット１０の厚み方向への屈曲による複数の稜線７１～７８が形成されている。 The second connecting portion 15 connects the first connecting portion 14 and the second fixed portion 12 to each other. Like the first connecting portion 14, the second connecting portion 15 slopes downward as it goes outward in the vehicle width direction, but unlike the first connecting portion 14, the second connecting portion 15 has a A plurality of ridge lines 71 to 78 are formed by bending in the directions.
　すなわち、第２接続部１５は、複数の稜線７１～７８によって区画された、概ね同じ方向に傾斜した複数の傾斜部２１～２５を備える。複数の傾斜部２１～２５は、傾斜角度、傾斜向き、形状等が互いに異なった多面構造であり、第１傾斜部２１、第２傾斜部２２、第３傾斜部２３、第４傾斜部２４、及び第５傾斜部２５を含む。 That is, the second connecting portion 15 includes a plurality of inclined portions 21 to 25 that are partitioned by a plurality of ridge lines 71 to 78 and inclined in approximately the same direction. The plurality of slopes 21 to 25 have multifaceted structures with different slope angles, slope directions, shapes, etc., and include a first slope 21, a second slope 22, a third slope 23, a fourth slope 24, and a fifth slope portion 25 .
　第１傾斜部２１は、第２接続部１５の上部に位置し、第１接続部１４の下端と接続する。
　第２傾斜部２２は、第２接続部１５の中央に位置する。
　第３傾斜部２３は、第２傾斜部２２の前方に位置する。
　第４傾斜部２４は、第２傾斜部２２の後方に位置する。
　第５傾斜部２５は、第２接続部１５の下部に位置し、第２固定部分１２の上端と接続する。 The first inclined portion 21 is located above the second connecting portion 15 and connects to the lower end of the first connecting portion 14 .
The second inclined portion 22 is located at the center of the second connecting portion 15 .
The third inclined part 23 is located in front of the second inclined part 22.
The fourth inclined part 24 is located behind the second inclined part 22.
The fifth inclined portion 25 is located at the lower part of the second connecting portion 15 and connects to the upper end of the second fixed portion 12 .
　第１稜線７１は、車両前後方向に略平行に延び、第１傾斜部２１と第２傾斜部２２とを区画する。
　第２稜線７２は、第１稜線７１と接続し、前方に向かうにしたがって上方且つ車幅方向内側に延びる。第２稜線７２は、第１傾斜部２１と第３傾斜部２３とを区画する。
　第３稜線７３は、第１稜線７１と接続し、後方に向かうにしたがって上方且つ車幅方向内側に延びる。第３稜線７３は、第１傾斜部２１と第４傾斜部２４とを区画する。
　第４稜線７４は、第１稜線７１及び第２稜線７２と接続し、下方に向かうにしたがって車幅方向外側に延びる。第４稜線７４は、第２傾斜部２２と第３傾斜部２３とを区画する。
　第５稜線７５は、第１稜線７１及び第３稜線７３と接続し、下方に向かうにしたがって車幅方向外側に延びる。第５稜線７５は、第４稜線７４と略平行である。第５稜線７５は、第２傾斜部２２と第４傾斜部２４とを区画する。
　第６稜線７６は、車両前後方向に略平行に延び、第２傾斜部２２と第５傾斜部２５とを区画する。第６稜線７６は、第１稜線７１と略平行である。
　第７稜線７７は、第４稜線７４及び第６稜線７６と接続し、前方に向かうにしたがって下方且つ車幅方向外側に延びる。第７稜線７７は、第３傾斜部２３と第５傾斜部２５とを区画する。
　第８稜線７８は、第５稜線７５及び第６稜線７６と接続し、後方に向かうにしたがって下方且つ車幅方向外側に延びる。第８稜線７８は、第４傾斜部２４と第５傾斜部２５とを区画する。 The first ridgeline 71 extends substantially parallel to the vehicle longitudinal direction and partitions the first slope portion 21 and the second slope portion 22 .
The second ridgeline 72 is connected to the first ridgeline 71 and extends upward and inward in the vehicle width direction as it goes forward. The second ridgeline 72 partitions the first slope portion 21 and the third slope portion 23.
The third ridgeline 73 is connected to the first ridgeline 71 and extends upward and inward in the vehicle width direction toward the rear. The third ridgeline 73 partitions the first slope portion 21 and the fourth slope portion 24 .
The fourth ridgeline 74 is connected to the first ridgeline 71 and the second ridgeline 72, and extends outward in the vehicle width direction as it goes downward. The fourth ridgeline 74 partitions the second slope portion 22 and the third slope portion 23.
The fifth ridgeline 75 connects with the first ridgeline 71 and the third ridgeline 73, and extends outward in the vehicle width direction as it goes downward. The fifth ridgeline 75 is substantially parallel to the fourth ridgeline 74. The fifth ridgeline 75 partitions the second slope portion 22 and the fourth slope portion 24 .
The sixth ridgeline 76 extends substantially parallel to the vehicle longitudinal direction and partitions the second slope portion 22 and the fifth slope portion 25 . The sixth ridgeline 76 is substantially parallel to the first ridgeline 71.
The seventh ridgeline 77 is connected to the fourth ridgeline 74 and the sixth ridgeline 76, and extends downward and outward in the vehicle width direction as it goes forward. The seventh ridgeline 77 separates the third slope portion 23 and the fifth slope portion 25.
The eighth ridgeline 78 is connected 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 ridgeline 78 separates the fourth slope portion 24 and the fifth slope portion 25.
　したがって、第２接続部１５には、中央に側面視略矩形の第２傾斜部２２が配置され、第２傾斜部２２の周囲に側面視略台形の第１，３，４，５傾斜部２１，２３，２４，２５が配置される。そして、第１～第５傾斜部２１～２５のうち中央の第２傾斜部２２が、ブラケット１０の厚み方向（車幅方向外側）に最も突出した形状となる。このように、接続部１３に複数の稜線７１～７８からなる屈曲構造が設けられているので、ブラケット１０の剛性を高めることができる。 Therefore, in the second connecting portion 15, a second inclined portion 22 having a substantially rectangular shape in side view is arranged at the center, and first, third, fourth, and fifth inclined portions 21 having a substantially trapezoidal shape in side view are arranged around the second inclined portion 22. , 23, 24, and 25 are arranged. Of the first to fifth inclined parts 21 to 25, the second inclined part 22 at the center has a shape that projects most in the thickness direction (outside in the vehicle width direction) of the bracket 10. In this way, since the connecting portion 13 is provided with the bending structure consisting of the plurality of ridge lines 71 to 78, the rigidity of the bracket 10 can be increased.
　ここで、図２を参照して上述したように、車両荷箱１内に多くの荷物を積んだ場合、ヘッダーボード２、一対のサイドゲート３，３及びテールゲート４には、荷箱内側から荷箱外側に向かう外向きの力Ｆ１が加わる。この外向きの力Ｆ１によって、ヘッダーボード２は車両前方に向かって押され、サイドゲート３は車幅方向外側に押される。この場合、ヘッダーボード２の車幅方向両端部と、一対のサイドゲート３，３の車幅方向内側面と、の連結部分には、当該連結部分を開くような力が加わる。 Here, as described above with reference to FIG. 2, when a large amount of cargo is loaded in the vehicle cargo box 1, the header board 2, the pair of side gates 3, 3, and the tailgate 4 are loaded from the inside of the cargo box. An outward force F1 directed toward the outside of the cargo box is applied. This 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 surfaces of the pair of side gates 3 in the vehicle width direction to open the connecting portion.
　同様に図２を参照して上述したように、ヘッダーボード２とテールゲート４間にロープを掛けて前後方向に結束した場合には、荷箱外側から荷箱内側に向うような内向きの力Ｆ２が加わる。この内向きの力Ｆ２によって、ヘッダーボード２の車幅方向両端部と、一対のサイドゲート３，３の車幅方向内側面と、の連結部分には、当該連結部分を閉じるような力が加わる。図１３は、連結固定部分Ａを車幅方向から見て、一部破断して示す側面図である。上述のような内向きの力Ｆ２が加わる際には、図１３に矢印で示すように、特にロープのフック等が掛けられるアッパーレール３０の延在部３０ｂに、浮き上がるような変形を生じさせる力Ｆ３が作用する Similarly, as described above with reference to FIG. 2, when a rope is hung between the header board 2 and the tailgate 4 and tied together in the front-rear direction, an inward force from the outside of the cargo box to the inside of the cargo box is generated. F2 is added. This inward force F2 applies a force 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 to close the connecting portion. . FIG. 13 is a partially cutaway side view of the fixed connection portion A when viewed from the vehicle width direction. When the above-mentioned inward force F2 is applied, as shown by the arrow in FIG. 13, there is a force that causes deformation such as lifting, especially on the extension portion 30b of the upper rail 30 on which the rope hook or the like is hung. F3 works
　そこで、本実施形態では、ヘッダーボード２とサイドゲート３とを連結するブラケット１０を設け、上記連結部分を補強している。
　特に、本実施形態のブラケット１０は、ブラケット１０の一方側に設けられ、ヘッダーボード２の上部（アッパーレール３０）に固定される第１固定部分１１と、ブラケット１０の他方側に設けられ、ヘッダーボード２よりも車両前方に位置するサイドゲート３の所定箇所（前側リンフォース４０）に固定される第２固定部分１２と、を有する。すなわち、ブラケット１０の第１固定部分１１と第２固定部分１２とが車両前後方向にオフセットしている。したがって、第１固定部分１１及び第２固定部分１２において、外力の一部を剪断力として受けることができ、ブラケット１０への負荷を軽減することができる。
　また、第２固定部分１２がヘッダーボード２よりも車両前方に位置するので、ブラケット１０は車両荷箱１の収容領域外に位置され、車両荷箱１の収容容積を大きくできる。
　また、ブラケット１０が板状であることで、軽量化ができる。 Therefore, in this embodiment, a bracket 10 is provided to connect the header board 2 and the side gate 3 to reinforce the connection portion.
In particular, the bracket 10 of this embodiment has a first fixed part 11 provided on one side of the bracket 10 and fixed to the upper part (upper rail 30) of the header board 2, and a first fixed part 11 provided on the other side of the bracket 10 and fixed to the header board 2. It has a second fixed portion 12 fixed to a predetermined location (front reinforcement 40) of the side gate 3 located further forward of the vehicle than 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 fixed portion 11 and the second fixed portion 12 can receive part of the external force as a shearing force, and the load on the bracket 10 can be reduced.
Further, since the second fixed portion 12 is located further forward of the vehicle than the header board 2, the bracket 10 is located outside the storage area of the vehicle cargo box 1, and the storage capacity of the vehicle cargo box 1 can be increased.
Furthermore, since the bracket 10 is plate-shaped, it can be made lighter.
　さらに、ブラケット１０は、第１固定部分１１と第２固定部分１２とを接続し、車幅方向に向かうにつれて車両上下方向に傾斜する接続部１３を有する。したがって、ブラケット１０への負荷を分散させることができる。なお、図８に破線Ｄで示したように、仮にブラケット１０が傾斜する接続部１３を備えず、第１固定部分１１と第２固定部分１２とが垂直に接続する形状とした場合、第１固定部分１１と第２固定部分１２とを連結する角部に負荷が集中してしまう。この場合、ブラケット１０自体の強度を増す必要が生じ、板厚の増加やビード形状を追加する等によって重量アップやコストアップの要因となってしまうので好ましくない。
　また、接続部１３で接続された第１固定部分１１と第２固定部分１２は、車両前後方向のオフセットに加え、車両上下方向及び車幅方向にもオフセットするので、第１固定部分１１（第１固定点Ｐ１）と第２固定部分１２（第２固定点Ｐ２）との位置関係が三次元となる。したがって、第１固定部分１１（第１固定点Ｐ１）と第２固定部分１２（第２固定点Ｐ２）に生じる応力は、前後方向、上下方向、車幅方向に分散し易くなる。この結果、ブラケット１０の応力分散の機能がより高まり、変形防止効果を高めることができる。 Furthermore, the bracket 10 has a connecting portion 13 that connects the first fixed portion 11 and the second fixed portion 12 and is inclined in the vehicle vertical direction as it goes in the vehicle width direction. Therefore, the load on the bracket 10 can be distributed. Note that, as shown by the broken line D in FIG. The load will be concentrated on the corner that connects the fixed part 11 and the second fixed part 12. In this case, it becomes necessary to increase the strength of the bracket 10 itself, and increasing the plate thickness or adding a bead shape causes an increase in weight and cost, which is not preferable.
In addition, the first fixed portion 11 and the second fixed portion 12 connected at the connecting portion 13 are offset not only in the vehicle longitudinal direction but also in the vehicle vertical direction and vehicle width direction. The positional relationship between the first fixed point P1) and the second fixed part 12 (second fixed point P2) is three-dimensional. Therefore, the stress generated in the first fixed portion 11 (first fixed point P1) and the second fixed portion 12 (second fixed 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 further enhanced, and the deformation prevention effect can be enhanced.
　ブラケット１０の第１固定部分１１とヘッダーボード２の上部（アッパーレール３０）とが固定される第１固定点Ｐ１と、ブラケット１０の第２固定部分１２とサイドゲート３の所定箇所（前側リンフォース４０）とが固定される第２固定点Ｐ２とが、車両前後方向にオフセットしている。したがって、外力を効率よく受けることができる。
　特に、図１３で示したように、アッパーレール３０の延在部３０ｂに浮き上がるような変形を生じさせる力Ｆ３が作用する場合に、ブラケット１０への負荷を軽減することができる。仮に、第１固定点Ｐ１と第２固定点Ｐ２とが、車両前後方向に同一位置である場合、第１固定点Ｐ１と第２固定点Ｐ２とを結んだ線と、車両後方に向かう力Ｆ３と、が垂直になってしまい、効率良く負荷を受けることが困難である。 A first fixing point P1 where the first fixed part 11 of the bracket 10 and the upper part of the header board 2 (upper rail 30) are fixed, and a predetermined point P1 where the second fixed part 12 of the bracket 10 and the side gate 3 (front reinforcement) are fixed. 40) and the second fixed point P2 to which are fixed are offset in the longitudinal direction of the vehicle. Therefore, external force can be efficiently received.
In particular, as shown in FIG. 13, when a force F3 that causes the extension portion 30b of the upper rail 30 to deform in a floating manner acts on it, the load on the bracket 10 can be reduced. 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 rear of the vehicle and are vertical, making it difficult to receive the load efficiently.
　ヘッダーボード２の上部には、横断面形状が屈曲形状をなすアッパーレール３０（第１補強部材）が、車幅方向に沿って設けられ、ブラケット１０の第１固定部分１１は、アッパーレール３０に固定される。したがって、弱部となりやすいヘッダーボード２の上部を、ブラケット１０に加えてアッパーレール３０によって補強することができる。 At the top of the header board 2, an upper rail 30 (first reinforcing member) having a bent cross-sectional shape is provided along the vehicle width direction, and the first fixed portion 11 of the bracket 10 is attached to the upper rail 30. 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.
　サイドゲート３の所定箇所には、前側リンフォース４０（第２補強部材）が設けられ、ブラケット１０の第２固定部分１２は、前側リンフォース４０に固定される。したがって、弱部となりやすいヘッダーボード２の所定箇所を、ブラケット１０に加えて前側リンフォース４０によって補強することができる A front reinforcement 40 (second reinforcing member) is provided at a predetermined location of the side gate 3, and the second fixed portion 12 of the bracket 10 is fixed to the front reinforcement 40. Therefore, predetermined parts of the header board 2 that tend to be weak parts can be reinforced by the front reinforcement 40 in addition to the bracket 10.
　サイドゲート３には、ヘッダーボード２よりも車両後方に、後側リンフォース５０（第３補強部材）が設けられる。したがって、サイドゲート３を更に補強することができる。 A rear reinforcement 50 (third reinforcing member) is provided on the side gate 3 at a position further rearward of the vehicle than the header board 2. Therefore, the side gate 3 can be further reinforced.
　前側リンフォース４０は、車幅方向内側に延びる突片４１を有し、突片４１は、アッパーレール３０と後側リンフォース５０とで挟み込まれている、したがって、前側リンフォース４０は、ブラケット１０によるアッパーレール３０への固定に加え、挟み込まれることによってアッパーレール３０及び後側リンフォース５０に固定されるので、ブラケット１０への負荷を分散することができる。 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. Therefore, the front reinforcement 40 In addition to being fixed to the upper rail 30 by the bracket 10, the bracket 10 is also fixed to the upper rail 30 and the rear reinforcement 50 by being sandwiched, so that the load on the bracket 10 can be distributed.
　前側リンフォース４０の突片４１と後側リンフォース５０とが固定される第３固定点Ｐ３は、車両上下方向においてブラケット１０の第１固定部分１１（第１固定点Ｐ１）と第２固定部分１２（第２固定点Ｐ２）との間に位置する。したがって、三点固定となって負荷を分散できるとともに、３つの固定点Ｐ１，Ｐ２，Ｐ３がコンパクトに配置される。そして、この３つの固定点Ｐ１，Ｐ２，Ｐ３は、ブラケット１０と三つの補強部材（アッパーレール３０、前側リンフォース４０、後側リンフォース５０）とで直接連結されているので、連結固定部分Ａ全体としての剛性を高めることができる。 The third fixing point P3 to which the protruding piece 41 of the front reinforcement 40 and the rear reinforcement 50 are fixed is the first fixing part 11 (first fixing point P1) and the second fixing part of the bracket 10 in the vehicle vertical direction. 12 (second fixed point P2). Therefore, the load can be distributed by fixing at three points, and the three fixing points P1, P2, and P3 are arranged compactly. These three fixed points P1, P2, and P3 are directly connected to the bracket 10 and the three reinforcing members (upper rail 30, front reinforcement 40, and rear reinforcement 50), so the connecting fixed portion A The overall rigidity can be increased.
　上述の本実施形態の補強構造においては、３つの固定点Ｐ１，Ｐ２，Ｐ３は、前後方向、上下方向、及び車幅方向にオフセットした立体的配置となっているので、あらゆる方向の外力に対応して分散機能を高め、変形抑制の効果を向上できる。 In the above-described reinforcement structure of this embodiment, the three fixed points P1, P2, and P3 are three-dimensionally arranged offset in the longitudinal direction, vertical direction, and vehicle width direction, so that they can cope with external forces in all directions. This can enhance the dispersion function and improve the effect of suppressing deformation.
　ブラケット１０の接続部１３には、ブラケット１０の厚み方向への屈曲による稜線７１～７８が形成されている。これにより、ブラケット１０の剛性が向上する。 The connecting portion 13 of the bracket 10 has ridgelines 71 to 78 formed by bending the bracket 10 in the thickness direction. This improves the rigidity of the bracket 10.
　以上、本発明の実施形態について説明したが、本発明はその技術思想の範囲で適宜変更することができる。例えば、上記実施形態においては、ブラケット１０の接続部１３に第１～第５傾斜部２１～２５を設けた構造としたが、傾斜部の数については、これに何ら制限されるものではなく、また、各傾斜部の傾斜角度、形状等についても図示のものに制限されるものではない。 Although the embodiments of the present invention have been described above, the present invention can be modified as appropriate within the scope of its technical concept. For example, in the above embodiment, the connecting portion 13 of the bracket 10 has a structure in which the first to fifth sloped portions 21 to 25 are provided, but the number of sloped portions is not limited to this. Furthermore, the angle of inclination, shape, etc. of each inclined portion are not limited to those shown in the drawings.
１　車両荷箱
２　ヘッダーボード
２ａ　上端部
３　サイドゲート
３ａ　ホイールアーチ
３ｂ　前側部分
４　テールゲート
５　フロアパネル
１０　ブラケット（固定部材）
１１　第１固定部分
１１ａ　貫通孔
１２　第２固定部分
１２ａ　貫通孔
１３　接続部
１４　第１接続部
１５　第２接続部
２１　第１傾斜部
２２　第２傾斜部
２３　第３傾斜部
２４　第４傾斜部
２５　第５傾斜部
３０　アッパーレール（第１補強部材）
３０ａ　基部
３０ｂ　延在部
４０　前側リンフォース（第２補強部材）
４１　突片
４１ａ　突片孔
５０　後側リンフォース（第３補強部材）
５１　突壁
５１ａ　突壁孔
６０　ガードフレーム
７１　第１稜線
７２　第２稜線
７３　第３稜線
７４　第４稜線
７５　第５稜線
７６　第６稜線
７７　第７稜線
７８　第８稜線
Ａ　連結固定部分
Ｆ１　外向きの力
Ｆ２　内向きの力
Ｐ１　第１固定点
Ｐ２　第２固定点
Ｐ３　第３固定点 1 Vehicle cargo box 2 Header board 2a Upper end 3 Side gate 3a Wheel arch 3b Front part 4 Tail gate 5 Floor panel 10 Bracket (fixing member)
11 First fixed part 11a Through hole 12 Second fixed part 12a Through hole 13 Connection part 14 First connection part 15 Second connection part 21 First slope part 22 Second slope part 23 Third slope part 24 Fourth slope part 25 Fifth slope portion 30 Upper rail (first reinforcing member)
30a Base portion 30b Extension portion 40 Front reinforcement (second reinforcement member)
41 Projection piece 41a Projection piece hole 50 Rear reinforcement (third reinforcement member)
51 Projection wall 51a Projection 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 Connecting fixed part F1 Outward Force F2 Inward force P1 First fixed point P2 Second fixed point P3 Third fixed point

Claims (9)

  1. 　車両荷箱における車両前方の壁面を構成するヘッダーボードと、
    　前記ヘッダーボードに交差して配置されるサイドゲートと、
    　前記ヘッダーボードと、前記サイドゲートと、を連結する板状の固定部材と、
    を備える車両荷箱の補強構造であって、
    　前記固定部材は、
    　前記固定部材の一方側に設けられ、前記ヘッダーボードの上部に固定される第１固定部分と、
    　前記固定部材の他方側に設けられ、前記ヘッダーボードよりも車両前方に位置する前記サイドゲートの所定箇所に固定される第２固定部分と、
    を有する、
    車両荷箱の補強構造。     A header board that constitutes a wall in front of the vehicle in a vehicle cargo 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 cargo box, comprising:
    The fixing member is
    a first fixing part provided on one side of the fixing member and fixed to the top of the header board;
    a second fixing portion provided on the other side of the fixing member and fixed to a predetermined location of the side gate located further forward of the vehicle than the header board;
    has,
    Reinforcement structure for vehicle cargo boxes.
  2. 　請求項１に記載の車両荷箱の補強構造であって、
    　前記固定部材は、第１固定部分と第２固定部分とを接続し、車幅方向に向かうにつれて車両上下方向に傾斜する接続部を有する、
    車両荷箱の補強構造。     A reinforcing structure for a vehicle cargo box according to claim 1,
    The fixing member connects the first fixing part and the second fixing part, and has a connecting part that slopes in the vehicle vertical direction as it goes in the vehicle width direction.
    Reinforcement structure for vehicle cargo boxes.
  3. 　請求項１又は２に記載の車両荷箱の補強構造であって、
    　前記固定部材の前記第１固定部分と前記ヘッダーボードの前記上部とが固定される第１固定点と、前記固定部材の前記第２固定部分と前記サイドゲートの前記所定箇所とが固定される第２固定点とが、車両前後方向にオフセットしている、
    車両荷箱の補強構造。     A reinforcing structure for a vehicle cargo box according to claim 1 or 2,
    a first fixing point to which the first fixing part of the fixing member and the upper part of the header board are fixed; and a first fixing point to which the second fixing part of the fixing member and the predetermined location of the side gate are fixed. The two fixed points are offset in the longitudinal direction of the vehicle.
    Reinforcement structure for vehicle cargo boxes.
  4. 　請求項１～３の何れか一項に記載の車両荷箱の補強構造であって、
    　前記ヘッダーボードの前記上部には、横断面形状が屈曲形状をなす第１補強部材が、車幅方向に沿って設けられ、
    　前記固定部材の前記第１固定部分は、前記第１補強部材に固定される、
    車両荷箱の補強構造。     A reinforcing structure for a vehicle cargo box according to any one of claims 1 to 3,
    A first reinforcing member having a bent cross-sectional shape is provided at the upper part of the header board along the vehicle width direction,
    the first fixed portion of the fixed member is fixed to the first reinforcing member;
    Reinforcement structure for vehicle cargo boxes.
  5. 　請求項１～４の何れか一項に記載の車両荷箱の補強構造であって、
    　前記サイドゲートの前記所定箇所には、第２補強部材が設けられ、
    　前記固定部材の前記第２固定部分は、前記第２補強部材に固定される、
    車両荷箱の補強構造。     A reinforcing structure for a vehicle cargo 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;
    Reinforcement structure for vehicle cargo boxes.
  6. 　請求項１～５の何れか一項に記載の車両荷箱の補強構造であって、
    　前記サイドゲートには、前記ヘッダーボードよりも車両後方に、第３補強部材が設けられる、
    車両荷箱の補強構造。     A reinforcing structure for a vehicle cargo box according to any one of claims 1 to 5,
    A third reinforcing member is provided on the side gate at a position further rearward of the vehicle than the header board.
    Reinforcement structure for vehicle cargo boxes.
  7. 　請求項１～３の何れか一項に記載の車両荷箱の補強構造であって、
    　前記ヘッダーボードの前記上部には、横断面形状が屈曲形状をなす第１補強部材が、車幅方向に沿って設けられ、
    　前記固定部材の前記第１固定部分は、前記第１補強部材に固定され、
    　前記サイドゲートの前記所定箇所には、第２補強部材が設けられ、
    　前記固定部材の前記第２固定部分は、前記第２補強部材に固定され、
    　前記サイドゲートには、前記ヘッダーボードよりも車両後方に、第３補強部材が設けられ、
    　前記第２補強部材は、車幅方向内側に延びる突片を有し、
    　前記突片は、前記第１補強部材と前記第３補強部材とで挟み込まれている、
    車両荷箱の補強構造。     A reinforcing structure for a vehicle cargo box according to any one of claims 1 to 3,
    A first reinforcing member having a bent cross-sectional shape is provided at the upper part 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, and
    The second reinforcing member has a protrusion extending inward in the vehicle width direction,
    the protruding piece is sandwiched between the first reinforcing member and the third reinforcing member;
    Reinforcement structure for vehicle cargo boxes.
  8. 　請求項７に記載の車両荷箱の補強構造であって、
    　前記第２補強部材の前記突片と前記第３補強部材とが固定される第３固定点は、車両上下方向において前記第１固定部分と前記第２固定部分との間に位置する、
    車両荷箱の補強構造。     The reinforcing structure for a vehicle cargo box according to claim 7,
    A third fixing point to which the protruding piece of the second reinforcing member and the third reinforcing member are fixed is located between the first fixing part and the second fixing part in the vehicle vertical direction.
    Reinforcement structure for vehicle cargo boxes.
  9. 　請求項２に記載の車両荷箱の補強構造であって、
    　前記接続部には、前記固定部材の厚み方向への屈曲による稜線が形成されている、
    車両荷箱の補強構造。     The reinforcing structure for a vehicle cargo box according to claim 2,
    A ridge line is formed in the connecting portion by bending the fixing member in a thickness direction.
    Reinforcement structure for vehicle cargo boxes.
PCT/JP2022/011361 2022-03-14 2022-03-14 Structure for reinforcing vehicle cargo box WO2023175679A1 (en)

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Application Number Priority Date Filing Date Title
PCT/JP2022/011361 WO2023175679A1 (en) 2022-03-14 2022-03-14 Structure for reinforcing vehicle cargo box
JP2022579073A JP7235191B1 (en) 2022-03-14 2022-03-14 Vehicle packing box reinforcement structure

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Application Number Priority Date Filing Date Title
PCT/JP2022/011361 WO2023175679A1 (en) 2022-03-14 2022-03-14 Structure for reinforcing vehicle cargo box

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417215Y2 (en) * 1976-11-08 1979-07-04
JPS624063Y2 (en) * 1980-03-03 1987-01-29
JPS6342697Y2 (en) * 1983-10-19 1988-11-08
JP2000255461A (en) * 1999-03-11 2000-09-19 Hino Motors Ltd Reinforcing structure for load platform outer plate
JP2006137426A (en) * 2004-11-12 2006-06-01 Honda Motor Co Ltd Wall structure of vehicle frame between cab and load carrying bed

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5417215B2 (en) 2010-02-19 2014-02-12 京セラドキュメントソリューションズ株式会社 Fixing apparatus and image forming apparatus equipped with the same
JP6342697B2 (en) 2014-04-23 2018-06-13 オートモーティブエナジーサプライ株式会社 Nonaqueous electrolyte secondary battery

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5417215Y2 (en) * 1976-11-08 1979-07-04
JPS624063Y2 (en) * 1980-03-03 1987-01-29
JPS6342697Y2 (en) * 1983-10-19 1988-11-08
JP2000255461A (en) * 1999-03-11 2000-09-19 Hino Motors Ltd Reinforcing structure for load platform outer plate
JP2006137426A (en) * 2004-11-12 2006-06-01 Honda Motor Co Ltd Wall structure of vehicle frame between cab and load carrying bed

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