WO2022107533A1 - Vehicle cargo box fixation structure - Google Patents

Vehicle cargo box fixation structure Download PDF

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Publication number
WO2022107533A1
WO2022107533A1 PCT/JP2021/038581 JP2021038581W WO2022107533A1 WO 2022107533 A1 WO2022107533 A1 WO 2022107533A1 JP 2021038581 W JP2021038581 W JP 2021038581W WO 2022107533 A1 WO2022107533 A1 WO 2022107533A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
wall
side wall
rear direction
packing box
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PCT/JP2021/038581
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French (fr)
Japanese (ja)
Inventor
美重 古橋
康雄 秋本
渉 末廣
Original Assignee
三菱自動車工業株式会社
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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
Publication of WO2022107533A1 publication Critical patent/WO2022107533A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/09—Means for mounting load bearing surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D24/00—Connections between vehicle body and vehicle frame

Definitions

  • the present invention relates to a packing box fixing structure for fixing a packing box to a vehicle frame.
  • the cargo box is fixed to the frame of the vehicle via a mount bracket.
  • a mount bracket For example, as shown in Patent Document 1, a plurality of mount brackets are arranged at intervals in the front-rear direction on each of a pair of frames extending in the front-rear direction of the vehicle, and the plurality of mount brackets and a plurality of mount brackets provided on the packing box are provided.
  • the structure is such that the frame and the packing box are fixed by fastening the mount brackets with bolts.
  • the mount bracket provided on the frame has, for example, a U-shaped cross section in the vertical direction, bolt holes are provided on the upper wall, and both side walls (support side walls) are on the outer side wall in the vehicle width direction of the frame. It is welded and fixed.
  • the mount bracket fixed to the outer side wall in the vehicle width direction of the frame is particularly swiveled because the mount bracket supports the packing box so as to suppress the tilt in the vehicle width direction during vehicle turning, for example.
  • the upper part of the mounting bracket on the directional side is subjected to a load that causes it to be peeled off from the frame. This causes stress concentration in the upper part of both side walls in the welded part of the mount bracket. Therefore, in order to avoid excessive stress concentration in the welded part of the mount bracket, it is necessary to increase the number of mounted brackets to be installed or to increase the size of the mount brackets. There was a problem that it caused an increase in the number of.
  • the present invention has been made to solve such a problem, and an object of the present invention is to provide a packing box fixing structure for a vehicle that suppresses stress concentration at a welded portion between a mount bracket and a frame.
  • the vehicle packing box fixing structure of the present invention is a vehicle that fixes the packing box to the frame via a mount bracket fixed to a side wall in the vehicle width direction of a frame extending in the front-rear direction of the vehicle.
  • the mounting bracket has a first wall portion extending outward in the vehicle width direction from the side wall of the frame and fixing the packing box, and is fixed to the side wall by welding.
  • a second wall portion that supports the first wall portion is provided, and the welded portion between the second wall portion and the side wall portion is characterized in that it extends inclined in the vehicle front-rear direction with respect to the vertical direction. do.
  • the welded portion between the second wall portion of the mount bracket and the side wall portion of the frame is applied.
  • the welded portion between the second wall portion and the side wall is inclined in the front-rear direction of the vehicle with respect to the vertical direction, so that the stress concentration in the welded portion can be suppressed.
  • the second wall portion has a first flange portion in which the end portion on the side wall side is bent and comes into contact with the side wall portion, and the end portion of the first flange portion is welded to the side wall portion.
  • the second wall portion may extend in the vertical direction, and the first flange portion may have different widths in the vehicle front-rear direction depending on the vertical position.
  • the second wall portion extends in the vertical direction, while the end portion of the first flange portion extends in the front-rear direction of the vehicle with respect to the vertical direction. Therefore, the welded portion between the second wall portion and the side wall can be inclined in the front-rear direction of the vehicle with respect to the vertical direction, and stress concentration in the welded portion can be suppressed.
  • the second wall portion has a first flange portion in which the end portion on the side wall side is bent and comes into contact with the side wall portion, and the end portion of the first flange portion is welded to the side wall portion.
  • the second wall portion extends in an inclined direction in the vehicle front-rear direction with respect to the vertical direction, and the width of the first flange portion in the vehicle front-rear direction is the same in the vertical position.
  • the end portion of the first flange portion together with the second wall portion is configured to be inclined and extended in the vehicle front-rear direction with respect to the vertical direction. Therefore, the welded portion between the second wall portion and the side wall can be inclined in the front-rear direction of the vehicle with respect to the vertical direction, and stress concentration in the welded portion can be suppressed.
  • two of the second wall portions extend downward from both ends of the first wall portion in the vehicle front-rear direction and are provided at intervals in the vehicle front-rear direction, and two of the second wall portions are provided.
  • a second flange portion that bends downward from the first wall portion and is welded to the side wall portion is provided between the wall portions, and the welded portion between the second flange portion and the side wall portion is formed. It may be located below the upper end of the welded portion between the second wall portion and the side wall portion.
  • two of the second wall portions extend downward from both ends of the first wall portion and are provided at intervals in the front-rear direction of the vehicle, and the two second wall portions are provided.
  • the welded portion on which stress concentration is likely to be concentrated is configured to be inclined and extended in the front-rear direction of the vehicle with respect to the vertical direction. Stress concentration in the welded portion of the bracket can be effectively suppressed.
  • the packing box fixing structure of the vehicle of the present invention when a load is applied so that the upper part of the mount bracket is peeled off from the packing box by turning of the vehicle or the like, the welded portion of the mount bracket Stress concentration can be suppressed. Therefore, it is possible to suppress the increase in size and the number of installations of the mount bracket, and it is possible to reduce the number of parts and the assembly man-hours.
  • the welding length between the mount bracket and the frame can be secured for a long time, the rigidity of the fixed portion of the packing box can be improved, the NVH performance of the vehicle can be improved, and the packing box can be shaken during turning. It can be suppressed to improve the steering performance of the vehicle.
  • FIG. 1 is a perspective view showing a schematic structure of a packing box fixing portion at the right rear portion of the vehicle 1 according to the embodiment of the present invention.
  • FIG. 2 is a perspective view showing a schematic structure of a frame 2 of a vehicle 1 according to the present embodiment.
  • FIG. 3 is a perspective view showing the structure of the mount bracket 3 and its periphery according to the present embodiment.
  • the vehicle 1 that adopts the packing box fixing structure of the present invention is a vehicle having a packing box 4 at the rear of the vehicle, for example, a pickup truck.
  • the vehicle 1 is provided with a pair of side frames 5 and 6 extending in the vehicle front-rear direction at intervals in the vehicle width direction. Further, the axle of the rear wheel 7 of the vehicle 1 is suspended by the suspension device 8 by the leaf spring 11.
  • the packing box 4 is placed on the frame 2 and fixed to the mount brackets 3 fixed to the side frames 5 and 6 by bolts and nuts (not shown).
  • a plurality of mount brackets 3 are provided on the outside of the side frames 5 and 6 in the vehicle width direction at intervals in the vehicle front-rear direction.
  • the mount bracket 3 arranged at the rearmost position of the vehicle is provided near the vehicle front-rear position of the rearmost cross member 10 extending in the vehicle width direction and connecting the pair of side frames 5 and 6. ing.
  • the cross member 10 is arranged closer to the front of the vehicle than the shackle 12 that supports the rear end of the leaf spring 11 that suspends the axle of the rear wheel 7.
  • the shackle 12 is inserted into the insertion holes 13 provided in the side walls of the side frames 5 and 6, supported by the side frames 5 and 6, rotatably supported around the axis extending in the vehicle width direction, and the leaf.
  • the structure is such that the rear end portion of the spring 11 is rotatably supported around an axis extending in the vehicle width direction.
  • the side frames 5 and 6 are formed by welding both ends of two frame members 19 and 20 formed by bending a sheet metal member into a U shape and welding them together. There is.
  • the side frames 5 and 6 have a box-shaped cross section in the upper and lower sections, and have an upper wall 21, a lower wall 22, an inner side wall 23, and an outer wall 24 (side wall).
  • the upper wall 21 and the lower wall 22 have welding lines 25 which are butt portions of the frame members 19 and 20.
  • the cross member 10 has a box-shaped cross section in the upper and lower cross sections, and has an upper wall 26, a lower wall 27, a front wall 28, and a rear wall 29.
  • the end portion of the cross member 10 is abutted against the inner side wall 23 on the inner side in the vehicle width direction of the side frame and fixed by welding.
  • FIG. 4 is a front view showing the shape of the mount bracket 3 of the present embodiment.
  • the mount bracket 3 has a U-shaped upper and lower cross section, and has an upper wall 30 (first wall portion) and two support side walls 31 and 32 (second wall portion). )have.
  • the mount bracket 3 is arranged so that the upper wall 30 and the support side walls 31 and 32 extend vertically outward in the vehicle width direction from the outer wall 24 of the side frames 5 and 6.
  • the upper wall 30 of the mount bracket 3 is arranged so as to extend in the horizontal direction of the vehicle 1 at substantially the same vertical height as the upper walls 21 of the side frames 5 and 6.
  • the two support side walls 31 and 32 extend downward from both ends of the upper wall 30 in the vehicle front-rear direction and are arranged so as to be spaced apart from each other in the vehicle front-rear direction. Therefore, the U-shaped opening of the mount bracket 3 is arranged so as to face downward.
  • outer flange portions 35 (first flange portions) are provided respectively.
  • the outer flange portion 35 is in contact with the outer wall 24 of the side frame, and its outer peripheral end portion is fixed to the outer wall 24 by welding (welded portion 36 shown in FIG. 4).
  • the upper end of the outer flange portion 35 is located, for example, about 1 to 2 cm below the upper wall 30.
  • the outer flange portion 35 is fixed to the outer wall 24 of the side frames 5 and 6 by welding at least the side end portion and the upper end portion.
  • the upper wall 30 of the mount bracket 3 is provided with a bolt hole 37, which is provided in the bolt hole provided in the strength member at the lower part of the packing box 4 or in the mount bracket fixed to the lower part of the packing box 4.
  • the end portions of the upper wall 30 of the mount bracket 3 on the side frames 5 and 6 are vertically bent downward to provide the inner flange portion 40 (second flange portion).
  • the lower end of the inner flange 40 and the outer walls 24 of the side frames 5 and 6 are also fixed by welding.
  • the lower end of the inner flange portion 40 extends substantially horizontally in the vehicle front-rear direction and is located below the upper end of the outer flange portion 35.
  • the welded portion 41 between the inner flange portion 40 and the outer wall 24 of the side frames 5 and 6 is located below the upper end of the welded portion 36 between the outer flange portion 35 and the outer wall 24.
  • FIG. 5 is a front view showing the shape of the conventional mount bracket 50.
  • the width of the outer flange portion 35 from the support side walls 31 and 32 in the vehicle front-rear direction is constant at the vertical position with respect to the mount bracket 3, and the outer flange portion 35
  • the side ends of the above are formed so as to extend in the vertical direction in parallel with the support side walls 31 and 32.
  • the mount brackets 3 and 50 fixed to the outer walls 24 of the side frames 5 and 6 so that the upper wall 30 protrudes outward in the vehicle width direction are provided when the vehicle 1 turns or travels in the vehicle width direction.
  • a load may be applied so that the upper wall 30 is pushed downward from the packing box 4. Therefore, a load is applied so that the upper portions of the mount brackets 3 and 50 are peeled off from the side frames 5 and 6, and in the conventional mount bracket 50 as shown in FIG. 5, stress is applied to the upper end portion of the welded portion 36 of the outer flange portion 35. Is concentrated.
  • the welded portion 36 of the outer flange portion 35 is inclined at an angle, even if a load is applied so that the upper portion of the mount bracket 3 is peeled off from the side frames 5 and 6.
  • the stress can be shared by the inclined portion of the welded portion 36, and the concentration of the stress on the upper end portion of the welded portion 36 of the outer flange portion 35 can be suppressed. Therefore, it is possible to suppress the increase in size and the number of installations of the mount bracket 3, and it is possible to reduce the number of parts and the number of assembly steps.
  • the welding length between the mount bracket 3 and the side frames 5 and 6 can be secured for a long time, the rigidity of the fixed portion of the packing box 4 can be improved, the NVH performance of the vehicle 1 can be improved, and the vehicle 1 can be turned. It is possible to suppress the shaking of the packing box 4 at the time and improve the steering performance of the vehicle 1. Further, the end portions of the upper wall 30 of the mount bracket 3 on the side frames 5 and 6 are bent to provide the inner flange portion 40, and the inner flange portion 40 is fixed to the outer wall 24 of the side frames 5 and 6 by welding. Therefore, the mount bracket 3 and the side frames 5 and 6 can be fixed more firmly.
  • the lower end portion of the inner flange portion 40 is welded to the outer wall 24 of the side frames 5 and 6, and the welded portion 41 between the inner flange portion 40 and the outer wall 24 is welded between the outer flange portion 35 and the outer wall 24. Since it is located below the upper end of the portion 36, the outer flange portion 35 of the inner flange portion 40 is located below the welded portion 41 of the inner flange portion 40 when a load is applied so that the upper wall 30 of the mount bracket 3 is pushed downward. The stress is higher in the upper part of the welded portion 36. Therefore, by inclining the welded portion 36 of the outer flange portion 35 at an angle, stress concentration in the welded portion 36 can be suppressed, and thus the welded portion of the mount bracket 3 can be effectively protected.
  • FIG. 6 and 7 are front views showing the shapes of the mount brackets 60 and 70 of other embodiments.
  • only one of the two outer flange portions 35 that is, one of the outer flange portions 35 arranged at intervals in the vehicle front-rear direction, is the same as described above.
  • the side end portion may be inclined from the vertical direction as in the form, and the other outer flange portion 35 may have a shape such that the side end portion extends in the vertical direction as in the prior art.
  • the front outer flange portion 35 is tilted in the mount bracket 3 at the rearmost portion of the vehicle 1, but which of the front and rear outer flange portions 35 is tilted is calculated or variously measured.
  • the outer flange portion 35 having the higher stress may be obtained by a method or the like, and the side end portion may have an inclined shape.
  • the outer flange portion 35 which has a high possibility of stress concentration, is formed to have an inclined shape, and the welded portion 36 can be effectively protected.
  • the support side wall 32 having a higher stress may be inclined toward the front side of the vehicle as it goes downward.
  • the outer end of the outer flange portion 35 is inclined in parallel with the support side wall 32, and the welded portion 36 is also inclined from the vertical direction as in the above embodiment. Therefore, the stress concentration in the welded portion 36 can be suppressed as in the above embodiment.
  • the present invention is not limited to the above embodiment.
  • the detailed structure of the mount brackets 3, 60, and 70 may be appropriately changed from the above embodiment.
  • the present invention can be applied to any of a plurality of mount brackets 3 and the like for fixing the packing box 4.
  • the present invention can be applied to a vehicle having a detailed structure different from that of the above embodiment, such as side frames 5 and 6, a cross member 10, and a suspension device 8.

Abstract

Provided is a vehicle cargo box fixation structure that is fixed to an outer wall 24 of a side frame 6 extending in a vehicle front-rear direction, to fix a cargo box 4 to the side frame 6 via a mount bracket 3. The mount bracket 3 is provided with: an upper wall 30 that extends outward in a vehicle width direction from the outer wall 24 of the side frame 6 to fix the cargo box 4; and supporting lateral walls 31, 32 that are fixed by welding to the outer wall 24 and support the upper wall 30. Welded portions between the supporting lateral walls 31, 32 and the outer wall 24 extend at an angle in the vehicle front-rear direction with respect to an up-down direction.

Description

車両の荷箱固定構造Vehicle packing box fixing structure
　本発明は、車両のフレームに荷箱を固定する荷箱固定構造に関する。 The present invention relates to a packing box fixing structure for fixing a packing box to a vehicle frame.
　貨物を運搬するための荷箱を有する車両の多くでは、荷箱は車両のフレームにマウントブラケットを介して固定される。例えば特許文献１に示すように、車両前後方向に延びる一対のフレームの夫々に前後方向に間隔をおいて複数のマウントブラケットを配置し、当該複数のマウントブラケットと、荷箱に設けられた複数のマウントブラケットとを、ボルトによって夫々締結することで、フレームと荷箱とを固定する構造になっている。 In many vehicles that have a cargo box for carrying cargo, the cargo box is fixed to the frame of the vehicle via a mount bracket. For example, as shown in Patent Document 1, a plurality of mount brackets are arranged at intervals in the front-rear direction on each of a pair of frames extending in the front-rear direction of the vehicle, and the plurality of mount brackets and a plurality of mount brackets provided on the packing box are provided. The structure is such that the frame and the packing box are fixed by fastening the mount brackets with bolts.
　フレームに設けられたマウントブラケットは、例えば上下方向の断面がコの字型に形成されており、上壁にボルト穴が設けられ、両側壁(支持側壁)がフレームの車幅方向外側の側壁に溶接されて固定されている。 The mount bracket provided on the frame has, for example, a U-shaped cross section in the vertical direction, bolt holes are provided on the upper wall, and both side walls (support side walls) are on the outer side wall in the vehicle width direction of the frame. It is welded and fixed.
実開平４－５１８０号公報Jikkenhei 4-5180 Gazette
　上記のように、フレームの車幅方向外側の側壁に固定されているマウントブラケットは、例えば車両旋回走行中に、荷箱の車幅方向の傾きを抑えるようにマウントブラケットが支持するため、特に旋回方向側のマウントブラケットの上部がフレームから引き剥がされるような荷重を受ける。これにより、マウントブラケットの溶接部のうち、両側壁の上部に応力集中を招いてしまう。したがって、マウントブラケットの溶接部の過度な応力集中を回避するために、マウントブラケットの設置個数を増加させたり、マウントブラケットを大きくしたりする必要があり、部品個数、重量及び溶接作業等の組立工数の増加を招いてしまうといった問題点があった。 As described above, the mount bracket fixed to the outer side wall in the vehicle width direction of the frame is particularly swiveled because the mount bracket supports the packing box so as to suppress the tilt in the vehicle width direction during vehicle turning, for example. The upper part of the mounting bracket on the directional side is subjected to a load that causes it to be peeled off from the frame. This causes stress concentration in the upper part of both side walls in the welded part of the mount bracket. Therefore, in order to avoid excessive stress concentration in the welded part of the mount bracket, it is necessary to increase the number of mounted brackets to be installed or to increase the size of the mount brackets. There was a problem that it caused an increase in the number of.
　本発明はこのような問題を解決するためになされたもので、マウントブラケットとフレームとの溶接部における応力集中を抑制する車両の荷箱固定構造を提供することを目的とする。 The present invention has been made to solve such a problem, and an object of the present invention is to provide a packing box fixing structure for a vehicle that suppresses stress concentration at a welded portion between a mount bracket and a frame.
　上記目的を達成するため、本発明の車両の荷箱固定構造は、車両の前後方向に延びるフレームの車幅方向の側壁に固定されたマウントブラケットを介して、荷箱を前記フレームに固定する車両の荷箱固定構造であって、前記マウントブラケットは、前記フレームの前記側壁から車幅方向外方に延びて前記荷箱を固定する第１の壁部と、前記側壁に溶接によって固定されるとともに前記第１の壁部を支持する第２の壁部とを備え、前記第２の壁部と前記側壁との溶接部は、上下方向に対して車両前後方向に傾斜して延びることを特徴とする。 In order to achieve the above object, the vehicle packing box fixing structure of the present invention is a vehicle that fixes the packing box to the frame via a mount bracket fixed to a side wall in the vehicle width direction of a frame extending in the front-rear direction of the vehicle. The mounting bracket has a first wall portion extending outward in the vehicle width direction from the side wall of the frame and fixing the packing box, and is fixed to the side wall by welding. A second wall portion that supports the first wall portion is provided, and the welded portion between the second wall portion and the side wall portion is characterized in that it extends inclined in the vehicle front-rear direction with respect to the vertical direction. do.
　これにより、例えば車両旋回走行中に、荷箱からマウントブラケットの上部が側壁に対して引き剥がされるように荷重を受けた場合に、マウントブラケットの第２の壁部とフレームの側壁との溶接部の上端部に応力が集中するが、第２の壁部と側壁との溶接部が上下方向に対して車両前後方向に傾斜しているので、当該溶接部における応力集中を抑制することができる。 As a result, for example, when a load is applied so that the upper portion of the mount bracket is peeled off from the packing box with respect to the side wall while the vehicle is turning, the welded portion between the second wall portion of the mount bracket and the side wall portion of the frame is applied. Although the stress is concentrated on the upper end portion of the vehicle, the welded portion between the second wall portion and the side wall is inclined in the front-rear direction of the vehicle with respect to the vertical direction, so that the stress concentration in the welded portion can be suppressed.
　好ましくは、前記第２の壁部は、前記側壁側の端部が屈曲して前記側壁と面接する第１のフランジ部を有し、当該第１のフランジ部の端部が前記側壁に溶接され、前記第２の壁部は上下方向に延び、前記第１のフランジ部は車両前後方向となる幅が上下位置で異なるとよい。
　これにより、第２の壁部が上下方向に延びる一方、第１のフランジ部の端部が上下方向に対して車両前後方向に傾斜して延びるように構成される。したがって、第２の壁部と側壁との溶接部を上下方向に対して車両前後方向に傾斜させ、当該溶接部における応力集中を抑制することができる。 Preferably, the second wall portion has a first flange portion in which the end portion on the side wall side is bent and comes into contact with the side wall portion, and the end portion of the first flange portion is welded to the side wall portion. The second wall portion may extend in the vertical direction, and the first flange portion may have different widths in the vehicle front-rear direction depending on the vertical position.
As a result, the second wall portion extends in the vertical direction, while the end portion of the first flange portion extends in the front-rear direction of the vehicle with respect to the vertical direction. Therefore, the welded portion between the second wall portion and the side wall can be inclined in the front-rear direction of the vehicle with respect to the vertical direction, and stress concentration in the welded portion can be suppressed.
　好ましくは、前記第２の壁部は、前記側壁側の端部が屈曲して前記側壁と面接する第１のフランジ部を有し、当該第１のフランジ部の端部が前記側壁に溶接され、前記第２の壁部は、上下方向に対して車両前後方向に傾斜して延び、前記第１のフランジ部は車両前後方向となる幅が上下位置で同一であるとよい。
　これにより、第２の壁部とともに第１のフランジ部の端部が上下方向に対して車両前後方向に傾斜して延びるように構成される。したがって、第２の壁部と側壁との溶接部を上下方向に対して車両前後方向に傾斜させ、当該溶接部における応力集中を抑制することができる。 Preferably, the second wall portion has a first flange portion in which the end portion on the side wall side is bent and comes into contact with the side wall portion, and the end portion of the first flange portion is welded to the side wall portion. It is preferable that the second wall portion extends in an inclined direction in the vehicle front-rear direction with respect to the vertical direction, and the width of the first flange portion in the vehicle front-rear direction is the same in the vertical position.
As a result, the end portion of the first flange portion together with the second wall portion is configured to be inclined and extended in the vehicle front-rear direction with respect to the vertical direction. Therefore, the welded portion between the second wall portion and the side wall can be inclined in the front-rear direction of the vehicle with respect to the vertical direction, and stress concentration in the welded portion can be suppressed.
　好ましくは、前記第２の壁部は、前記第１の壁部の車両前後方向両端部から夫々下方に延びて、車両前後方向に互いに間隔をおいて２個設けられ、２個の前記第２の壁部の間に、前記第１の壁部から屈曲して下方に延び前記側壁に溶接される第２のフランジ部を有し、前記第２のフランジ部と前記側壁との溶接部は、前記第２の壁部と前記側壁との溶接部の上端より下方に位置するとよい。 Preferably, two of the second wall portions extend downward from both ends of the first wall portion in the vehicle front-rear direction and are provided at intervals in the vehicle front-rear direction, and two of the second wall portions are provided. A second flange portion that bends downward from the first wall portion and is welded to the side wall portion is provided between the wall portions, and the welded portion between the second flange portion and the side wall portion is formed. It may be located below the upper end of the welded portion between the second wall portion and the side wall portion.
　これにより、荷箱よりマウントブラケットの上部が側壁に対して引き剥がされるように荷重を受けた場合に、第２のフランジ部と前記側壁との溶接部よりも第２の壁部と前記側壁との溶接部の方が高く応力集中する。したがって、第２の壁部と側壁との溶接部が上下方向に対して車両前後方向に傾斜していることで、マウントブラケットの溶接部における応力集中を効果的に抑制することができる。 As a result, when a load is applied so that the upper portion of the mount bracket is peeled off from the packing box with respect to the side wall, the second wall portion and the side wall portion rather than the welded portion between the second flange portion and the side wall portion The welded part is higher in stress concentration. Therefore, since the welded portion between the second wall portion and the side wall is inclined in the front-rear direction of the vehicle with respect to the vertical direction, stress concentration in the welded portion of the mount bracket can be effectively suppressed.
　好ましくは、前記第２の壁部は、前記第１の壁部の両端部から夫々下方に延びて、車両前後方向に互いに間隔をおいて２個設けられ、２個の前記第２の壁部のうち、一方の前記第２の壁部のみ前記側壁との溶接部が、上下方向に対して車両前後方向に傾斜して延びるとよい。
　これにより、２個の第２の壁部の側壁との溶接部のうち、応力集中し易い方の溶接部を上下方向に対して車両前後方向に傾斜して延びるように構成することで、マウントブラケットの溶接部における応力集中を効果的に抑制することができる。 Preferably, two of the second wall portions extend downward from both ends of the first wall portion and are provided at intervals in the front-rear direction of the vehicle, and the two second wall portions are provided. Of these, it is preferable that only one of the second wall portions has a welded portion with the side wall inclined to extend in the front-rear direction of the vehicle with respect to the vertical direction.
As a result, of the welded portions with the side walls of the two second wall portions, the welded portion on which stress concentration is likely to be concentrated is configured to be inclined and extended in the front-rear direction of the vehicle with respect to the vertical direction. Stress concentration in the welded portion of the bracket can be effectively suppressed.
　本発明の車両の荷箱固定構造によれば、車両の旋回走行等によって、荷箱よりマウントブラケットの上部が側壁に対して引き剥がされるように荷重を受けた場合に、マウントブラケットの溶接部の応力集中を抑制することができる。したがって、マウントブラケットの大型化や設置個数を抑制することができ、部品個数や組立工数の低減を図ることができる。 According to the packing box fixing structure of the vehicle of the present invention, when a load is applied so that the upper part of the mount bracket is peeled off from the packing box by turning of the vehicle or the like, the welded portion of the mount bracket Stress concentration can be suppressed. Therefore, it is possible to suppress the increase in size and the number of installations of the mount bracket, and it is possible to reduce the number of parts and the assembly man-hours.
　また、マウントブラケットとフレームとの溶接長を長く確保することができ、荷箱の固定部の剛性を向上させて車両のＮＶＨ性能を向上させることができるとともに、旋回走行時における荷箱の揺れを抑制して、車両の操安性能を向上させることができる。 In addition, the welding length between the mount bracket and the frame can be secured for a long time, the rigidity of the fixed portion of the packing box can be improved, the NVH performance of the vehicle can be improved, and the packing box can be shaken during turning. It can be suppressed to improve the steering performance of the vehicle.
本発明の実施形態の車両の右後部の荷箱固定部の概略構造を示す斜視図である。It is a perspective view which shows the schematic structure of the packing box fixing part of the right rear part of the vehicle of the embodiment of this invention. 本実施形態に係る車両のフレームの概略構造を示す斜視図である。It is a perspective view which shows the schematic structure of the frame of the vehicle which concerns on this embodiment. 本実施形態に係るマウントブラケット及びその周辺の構造を示す斜視図である。It is a perspective view which shows the structure of the mount bracket and its periphery which concerns on this embodiment. 本実施形態に係るマウントブラケットの形状を示す正面図である。It is a front view which shows the shape of the mount bracket which concerns on this embodiment. 従来技術のマウントブラケットの形状を示す正面図である。It is a front view which shows the shape of the mount bracket of the prior art. 他の実施形態のマウントブラケットの形状を示す正面図である。It is a front view which shows the shape of the mount bracket of another embodiment. 他の実施形態のマウントブラケットの形状を示す正面図である。It is a front view which shows the shape of the mount bracket of another embodiment.
　以下、図面に基づき本発明の実施形態について説明する。
　図１は、本発明の実施形態の車両１の右後部の荷箱固定部の概略構造を示す斜視図である。図２は、本実施形態に係る車両１のフレーム２の概略構造を示す斜視図である。図３は、本実施形態に係るマウントブラケット３及びその周辺の構造を示す斜視図である。
　本発明の荷箱固定構造を採用する車両１は、例えばピックアップトラックのように、車両後部に荷箱４を備えた車両である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a schematic structure of a packing box fixing portion at the right rear portion of the vehicle 1 according to the embodiment of the present invention. FIG. 2 is a perspective view showing a schematic structure of a frame 2 of a vehicle 1 according to the present embodiment. FIG. 3 is a perspective view showing the structure of the mount bracket 3 and its periphery according to the present embodiment.
The vehicle 1 that adopts the packing box fixing structure of the present invention is a vehicle having a packing box 4 at the rear of the vehicle, for example, a pickup truck.
　図１、２に示すように、車両１には、車幅方向に間隔をおいて車両前後方向に延びる一対のサイドフレーム５、６が備えられている。また、車両１の後輪７の車軸は、リーフスプリング１１によるサスペンション装置８によって懸架されている。
　荷箱４は、フレーム２上に載置され、サイドフレーム５、６に固定されたマウントブラケット３に図示しないボルト及びナットによって固定されている。 As shown in FIGS. 1 and 2, the vehicle 1 is provided with a pair of side frames 5 and 6 extending in the vehicle front-rear direction at intervals in the vehicle width direction. Further, the axle of the rear wheel 7 of the vehicle 1 is suspended by the suspension device 8 by the leaf spring 11.
The packing box 4 is placed on the frame 2 and fixed to the mount brackets 3 fixed to the side frames 5 and 6 by bolts and nuts (not shown).
　マウントブラケット３は、サイドフレーム５、６の車幅方向外側に、車両前後方向に互いに間隔をおいて複数備えられている。複数のマウントブラケット３のうち、車両最後方に配置されたマウントブラケット３は、車幅方向に延びて一対のサイドフレーム５、６を接続する最後方のクロスメンバ１０の車両前後位置付近に設けられている。
　クロスメンバ１０は、後輪７の車軸を懸架するリーフスプリング１１の後端部を支持するシャックル１２よりも車両前方の近傍に配置されている。シャックル１２はサイドフレーム５、６の側壁に設けられた挿入穴１３に挿入されて、サイドフレーム５、６に支持され、車幅方向に延びる軸線を中心に回動可能に支持されるとともに、リーフスプリング１１の後端部を車幅方向に延びる軸線を中心に回動可能に支持する構造になっている。 A plurality of mount brackets 3 are provided on the outside of the side frames 5 and 6 in the vehicle width direction at intervals in the vehicle front-rear direction. Of the plurality of mount brackets 3, the mount bracket 3 arranged at the rearmost position of the vehicle is provided near the vehicle front-rear position of the rearmost cross member 10 extending in the vehicle width direction and connecting the pair of side frames 5 and 6. ing.
The cross member 10 is arranged closer to the front of the vehicle than the shackle 12 that supports the rear end of the leaf spring 11 that suspends the axle of the rear wheel 7. The shackle 12 is inserted into the insertion holes 13 provided in the side walls of the side frames 5 and 6, supported by the side frames 5 and 6, rotatably supported around the axis extending in the vehicle width direction, and the leaf. The structure is such that the rear end portion of the spring 11 is rotatably supported around an axis extending in the vehicle width direction.
　図１～３に示すように、サイドフレーム５、６は、板金部材をコの字型に屈曲して形成された２個のフレーム部材１９、２０の両端部を突き合わせて溶接して形成されている。サイドフレーム５、６は、上下断面が箱型断面になっており、上壁２１、下壁２２、内側壁２３、外側壁２４（側壁）を有している。上壁２１及び下壁２２に、フレーム部材１９、２０の突合せ部である溶接線２５を有している。 As shown in FIGS. 1 to 3, the side frames 5 and 6 are formed by welding both ends of two frame members 19 and 20 formed by bending a sheet metal member into a U shape and welding them together. There is. The side frames 5 and 6 have a box-shaped cross section in the upper and lower sections, and have an upper wall 21, a lower wall 22, an inner side wall 23, and an outer wall 24 (side wall). The upper wall 21 and the lower wall 22 have welding lines 25 which are butt portions of the frame members 19 and 20.
　クロスメンバ１０は、上下断面が箱型断面になっており、上壁２６、下壁２７、前壁２８、後壁２９を有している。
　クロスメンバ１０の端部は、サイドフレームの車幅方向内側の内側壁２３に突き当てられて溶接によって固定されている。
　図４は、本実施形態のマウントブラケット３の形状を示す正面図である。 The cross member 10 has a box-shaped cross section in the upper and lower cross sections, and has an upper wall 26, a lower wall 27, a front wall 28, and a rear wall 29.
The end portion of the cross member 10 is abutted against the inner side wall 23 on the inner side in the vehicle width direction of the side frame and fixed by welding.
FIG. 4 is a front view showing the shape of the mount bracket 3 of the present embodiment.
　図１～４に示すように、マウントブラケット３は、上下断面がコの字型に形成され、上壁３０（第１の壁部）と２個の支持側壁３１、３２（第２の壁部）を有している。マウントブラケット３は、上壁３０及び支持側壁３１、３２がサイドフレーム５、６の外側壁２４から車幅方向外方に垂直に延びるように配置される。マウントブラケット３の上壁３０は、サイドフレーム５、６の上壁２１と略同一の上下高さで、車両１の水平方向に延びるように配置される。２個の支持側壁３１、３２は、上壁３０の車両前後方向両端部から夫々下方に延び、車両前後方向に互いに間隔を置いて並ぶように配置される。したがって、マウントブラケット３の断面コの字型の開口部が下方に向くように配置されている。 As shown in FIGS. 1 to 4, the mount bracket 3 has a U-shaped upper and lower cross section, and has an upper wall 30 (first wall portion) and two support side walls 31 and 32 (second wall portion). )have. The mount bracket 3 is arranged so that the upper wall 30 and the support side walls 31 and 32 extend vertically outward in the vehicle width direction from the outer wall 24 of the side frames 5 and 6. The upper wall 30 of the mount bracket 3 is arranged so as to extend in the horizontal direction of the vehicle 1 at substantially the same vertical height as the upper walls 21 of the side frames 5 and 6. The two support side walls 31 and 32 extend downward from both ends of the upper wall 30 in the vehicle front-rear direction and are arranged so as to be spaced apart from each other in the vehicle front-rear direction. Therefore, the U-shaped opening of the mount bracket 3 is arranged so as to face downward.
　マウントブラケット３の支持側壁３１、３２のサイドフレーム５、６側の端部が車両前後方向外方に垂直に屈曲して外側フランジ部３５（第１のフランジ部）が夫々設けられている。外側フランジ部３５は、サイドフレームの外側壁２４に面接されて、その外周端部を溶接によって外側壁２４に固定されている（図４中に示す溶接部３６）。
　外側フランジ部３５の上端は、上壁３０よりも、例えば１～２ｃｍ程度下方に位置している。外側フランジ部３５は、少なくとも側端部とともに上端部も溶接によってサイドフレーム５、６の外側壁２４に固定される。 The end portions of the support side walls 31 and 32 of the mount bracket 3 on the side frames 5 and 6 are bent vertically outward in the front-rear direction of the vehicle, and outer flange portions 35 (first flange portions) are provided respectively. The outer flange portion 35 is in contact with the outer wall 24 of the side frame, and its outer peripheral end portion is fixed to the outer wall 24 by welding (welded portion 36 shown in FIG. 4).
The upper end of the outer flange portion 35 is located, for example, about 1 to 2 cm below the upper wall 30. The outer flange portion 35 is fixed to the outer wall 24 of the side frames 5 and 6 by welding at least the side end portion and the upper end portion.
　マウントブラケット３の上壁３０には、ボルト穴３７が設けられており、荷箱４の下部の強度部材に設けられたボルト穴、あるいは荷箱４の下部に固定されたマウントブラケットに設けられたボルト穴とともに、ボルトが挿入されて共締めされることで、マウントブラケット３を介して荷箱４とサイドフレーム５、６とが着脱可能に固定される。
　図４に示すように、外側フランジ部３５は、側端部が傾斜して、車両上下方向の幅が下方に向かって広がるように形成されている。したがって、外側フランジ部３５とサイドフレームの外側壁２４との溶接部３６も下方に向かって車両前後方向に傾斜している。 The upper wall 30 of the mount bracket 3 is provided with a bolt hole 37, which is provided in the bolt hole provided in the strength member at the lower part of the packing box 4 or in the mount bracket fixed to the lower part of the packing box 4. By inserting the bolts together with the bolt holes and tightening them together, the packing box 4 and the side frames 5 and 6 are detachably fixed via the mount bracket 3.
As shown in FIG. 4, the outer flange portion 35 is formed so that the side end portion is inclined and the width in the vertical direction of the vehicle expands downward. Therefore, the welded portion 36 between the outer flange portion 35 and the outer wall 24 of the side frame is also inclined downward in the vehicle front-rear direction.
　また、マウントブラケット３の上壁３０のサイドフレーム５、６側の端部が下方に垂直に屈曲して内側フランジ部４０（第２のフランジ部）が設けられている。内側フランジ部４０の下端部とサイドフレーム５、６の外側壁２４とも溶接によって固定されている。内側フランジ部４０の下端は、車両前後方向に略水平に延び、外側フランジ部３５の上端よりも下方に位置している。これにより、内側フランジ部４０とサイドフレーム５、６の外側壁２４との溶接部４１は、外側フランジ部３５と外側壁２４との溶接部３６の上端より下方に位置する。 Further, the end portions of the upper wall 30 of the mount bracket 3 on the side frames 5 and 6 are vertically bent downward to provide the inner flange portion 40 (second flange portion). The lower end of the inner flange 40 and the outer walls 24 of the side frames 5 and 6 are also fixed by welding. The lower end of the inner flange portion 40 extends substantially horizontally in the vehicle front-rear direction and is located below the upper end of the outer flange portion 35. As a result, the welded portion 41 between the inner flange portion 40 and the outer wall 24 of the side frames 5 and 6 is located below the upper end of the welded portion 36 between the outer flange portion 35 and the outer wall 24.
　以上のように、本実施形態において、荷箱４をサイドフレーム５、６に固定するマウントブラケット３は、外側フランジ部３５の外側端部、即ちサイドフレーム５、６との溶接部３６が、上下方向に対して車両前後方向に斜めに傾斜している。
　図５は、従来のマウントブラケット５０の形状を示す正面図である。
　図５に示すような従来のマウントブラケット５０は、上記のマウントブラケット３に対して、支持側壁３１、３２からの外側フランジ部３５の車両前後方向の幅が上下位置で一定で、外側フランジ部３５の側端が支持側壁３１、３２と平行に上下方向に延びるように形成されている点が異なる。 As described above, in the mount bracket 3 for fixing the packing box 4 to the side frames 5 and 6, the outer end portion of the outer flange portion 35, that is, the welded portion 36 with the side frames 5 and 6 is up and down in the mount bracket 3. It is tilted diagonally in the front-rear direction of the vehicle with respect to the direction.
FIG. 5 is a front view showing the shape of the conventional mount bracket 50.
In the conventional mount bracket 50 as shown in FIG. 5, the width of the outer flange portion 35 from the support side walls 31 and 32 in the vehicle front-rear direction is constant at the vertical position with respect to the mount bracket 3, and the outer flange portion 35 The difference is that the side ends of the above are formed so as to extend in the vertical direction in parallel with the support side walls 31 and 32.
　ところで、サイドフレーム５、６の外側壁２４に、車幅方向外方に向かって上壁３０が突き出るように固定されたマウントブラケット３、５０は、車両１が旋回走行した場合や車幅方向に振動した場合に、荷箱４から上壁３０が下方に押されるように荷重を受ける場合がある。したがって、マウントブラケット３、５０の上部がサイドフレーム５、６から引き剥がされるように荷重を受け、図５に示すような従来のマウントブラケット５０では外側フランジ部３５の溶接部３６の上端部に応力が集中する。 By the way, the mount brackets 3 and 50 fixed to the outer walls 24 of the side frames 5 and 6 so that the upper wall 30 protrudes outward in the vehicle width direction are provided when the vehicle 1 turns or travels in the vehicle width direction. When it vibrates, a load may be applied so that the upper wall 30 is pushed downward from the packing box 4. Therefore, a load is applied so that the upper portions of the mount brackets 3 and 50 are peeled off from the side frames 5 and 6, and in the conventional mount bracket 50 as shown in FIG. 5, stress is applied to the upper end portion of the welded portion 36 of the outer flange portion 35. Is concentrated.
　これに対し、本実施形態では、外側フランジ部３５の溶接部３６が斜めに傾斜していることで、マウントブラケット３の上部がサイドフレーム５、６から引き剥がされるように荷重を受けても、溶接部３６の傾斜部分で応力を分担し、外側フランジ部３５の溶接部３６の上端部に応力が集中することを抑制することができる。
　したがって、マウントブラケット３の大型化や設置個数を抑制することができ、部品個数や組立工数の低減を図ることができる。 On the other hand, in the present embodiment, since the welded portion 36 of the outer flange portion 35 is inclined at an angle, even if a load is applied so that the upper portion of the mount bracket 3 is peeled off from the side frames 5 and 6. The stress can be shared by the inclined portion of the welded portion 36, and the concentration of the stress on the upper end portion of the welded portion 36 of the outer flange portion 35 can be suppressed.
Therefore, it is possible to suppress the increase in size and the number of installations of the mount bracket 3, and it is possible to reduce the number of parts and the number of assembly steps.
　また、マウントブラケット３とサイドフレーム５、６との溶接長を長く確保することができ、荷箱４の固定部の剛性を向上させて車両１のＮＶＨ性能を向上させることができるとともに、旋回走行時における荷箱４の揺れを抑制して、車両１の操安性能を向上させることができる。
　また、マウントブラケット３の上壁３０のサイドフレーム５、６側の端部が屈曲して内側フランジ部４０が設けられ、この内側フランジ部４０がサイドフレーム５、６の外側壁２４に溶接によって固定されているので、マウントブラケット３とサイドフレーム５、６とを更に強固に固定できる。 Further, the welding length between the mount bracket 3 and the side frames 5 and 6 can be secured for a long time, the rigidity of the fixed portion of the packing box 4 can be improved, the NVH performance of the vehicle 1 can be improved, and the vehicle 1 can be turned. It is possible to suppress the shaking of the packing box 4 at the time and improve the steering performance of the vehicle 1.
Further, the end portions of the upper wall 30 of the mount bracket 3 on the side frames 5 and 6 are bent to provide the inner flange portion 40, and the inner flange portion 40 is fixed to the outer wall 24 of the side frames 5 and 6 by welding. Therefore, the mount bracket 3 and the side frames 5 and 6 can be fixed more firmly.
　更に、内側フランジ部４０の下端部がサイドフレーム５、６の外側壁２４に溶接され、この内側フランジ部４０と外側壁２４との溶接部４１が、外側フランジ部３５と外側壁２４との溶接部３６の上端よりも下方に位置しているので、マウントブラケット３の上壁３０が下方に押されるように荷重を受けた場合に、内側フランジ部４０の溶接部４１よりも外側フランジ部３５の溶接部３６の上部の方が応力が高くなる。したがって、外側フランジ部３５の溶接部３６を斜めに傾斜させることにより、当該溶接部３６での応力集中を抑制することで、マウントブラケット３の溶接部の保護を効果的に図ることができる。 Further, the lower end portion of the inner flange portion 40 is welded to the outer wall 24 of the side frames 5 and 6, and the welded portion 41 between the inner flange portion 40 and the outer wall 24 is welded between the outer flange portion 35 and the outer wall 24. Since it is located below the upper end of the portion 36, the outer flange portion 35 of the inner flange portion 40 is located below the welded portion 41 of the inner flange portion 40 when a load is applied so that the upper wall 30 of the mount bracket 3 is pushed downward. The stress is higher in the upper part of the welded portion 36. Therefore, by inclining the welded portion 36 of the outer flange portion 35 at an angle, stress concentration in the welded portion 36 can be suppressed, and thus the welded portion of the mount bracket 3 can be effectively protected.
　図６、７は、他の実施形態のマウントブラケット６０、７０の形状を示す正面図である。
　図６に示すように、２個の外側フランジ部３５のうち１個のみ、即ち車両前後方向に互いに間隔をおいて配置される外側フランジ部３５のうち、一方の外側フランジ部３５については上記実施形態のように側端部を上下方向から傾斜させるとともに、他方の外側フランジ部３５については従来技術のように側端部が上下方向に延びるような形状にしてもよい。ここで、２個の外側フランジ部３５のうち荷重を強く受ける、即ち応力が高くなる方の外側フランジ部３５について側端部を傾斜させるとよい。 6 and 7 are front views showing the shapes of the mount brackets 60 and 70 of other embodiments.
As shown in FIG. 6, only one of the two outer flange portions 35, that is, one of the outer flange portions 35 arranged at intervals in the vehicle front-rear direction, is the same as described above. The side end portion may be inclined from the vertical direction as in the form, and the other outer flange portion 35 may have a shape such that the side end portion extends in the vertical direction as in the prior art. Here, it is preferable to incline the side end portion of the outer flange portion 35 of the two outer flange portions 35, which receives a strong load, that is, the one having a higher stress.
　本実施形態では、車両１の最後部のマウントブラケット３において、前方の外側フランジ部３５を傾斜させているが、前方及び後方のいずれの外側フランジ部３５を傾斜させるかについては、計算あるいは各種測定法等によって応力の高い方の外側フランジ部３５を求めて側端部を傾斜した形状にすればよい。
　これにより、応力集中する可能性の高い外側フランジ部３５のみ傾斜させた形状とし、効果的に溶接部３６の保護を図ることができる。 In the present embodiment, the front outer flange portion 35 is tilted in the mount bracket 3 at the rearmost portion of the vehicle 1, but which of the front and rear outer flange portions 35 is tilted is calculated or variously measured. The outer flange portion 35 having the higher stress may be obtained by a method or the like, and the side end portion may have an inclined shape.
As a result, only the outer flange portion 35, which has a high possibility of stress concentration, is formed to have an inclined shape, and the welded portion 36 can be effectively protected.
　また、図７に示すように、２個の支持側壁３１、３２のうち、応力の高くなる支持側壁３２を、下方に向かうにしたがって車両前側に傾斜させてもよい。外側フランジ部３５の外側端は支持側壁３２と平行に傾斜し、溶接部３６も上記実施形態と同様に上下方向から傾斜することになる。したがって、上記実施形態と同様に溶接部３６における応力集中を抑制することができる。 Further, as shown in FIG. 7, of the two support side walls 31 and 32, the support side wall 32 having a higher stress may be inclined toward the front side of the vehicle as it goes downward. The outer end of the outer flange portion 35 is inclined in parallel with the support side wall 32, and the welded portion 36 is also inclined from the vertical direction as in the above embodiment. Therefore, the stress concentration in the welded portion 36 can be suppressed as in the above embodiment.
　本発明は、上記の実施形態に限定するものではない。
　例えば、マウントブラケット３、６０、７０の詳細な構造については、上記実施形態から適宜変更してもよい。また、荷箱４を固定する複数のマウントブラケット３等のいずれにも本発明を適用することができる。また、サイドフレーム５、６、クロスメンバ１０、サスペンション装置８等、上記の実施形態とは詳細な構造が異なる車両にも本発明を適用することができる。 The present invention is not limited to the above embodiment.
For example, the detailed structure of the mount brackets 3, 60, and 70 may be appropriately changed from the above embodiment. Further, the present invention can be applied to any of a plurality of mount brackets 3 and the like for fixing the packing box 4. Further, the present invention can be applied to a vehicle having a detailed structure different from that of the above embodiment, such as side frames 5 and 6, a cross member 10, and a suspension device 8.
　　１　車両
　　３、６０、７０　マウントブラケット
　　４　荷箱
　　５、６　サイドフレーム（フレーム）
　２４　外側壁（側壁）
　３０　上壁（第１の壁部）
　３１、３２　支持側壁（第２の壁部）
　３５　外側フランジ部（第１のフランジ部）
　３６　溶接部
　４０　内側フランジ部（第２のフランジ部）
　４１　溶接部 1 Vehicle 3, 60, 70 Mount bracket 4 Packing box 5, 6 Side frame (frame)
24 outer side wall (side wall)
30 Upper wall (first wall)
31, 32 Support side wall (second wall)
35 Outer flange part (first flange part)
36 Welded part 40 Inner flange part (second flange part)
41 Welded part

Claims (5)

  1. 　車両の前後方向に延びるフレームの車幅方向の側壁に固定されたマウントブラケットを介して、荷箱を前記フレームに固定する車両の荷箱固定構造であって、
    　前記マウントブラケットは、前記フレームの前記側壁から車幅方向外方に延びて前記荷箱を固定する第１の壁部と、前記側壁に溶接によって固定されるとともに前記第１の壁部を支持する第２の壁部とを備え、
    　前記第２の壁部と前記側壁との溶接部は、上下方向に対して車両前後方向に傾斜して延びることを特徴とする車両の荷箱固定構造。     It is a vehicle packing box fixing structure for fixing a packing box to the frame via a mount bracket fixed to a side wall in the vehicle width direction of a frame extending in the front-rear direction of the vehicle.
    The mount bracket extends outward in the vehicle width direction from the side wall of the frame to fix the packing box, and is fixed to the side wall by welding and supports the first wall part. With a second wall
    A vehicle packing box fixing structure, wherein the welded portion between the second wall portion and the side wall portion extends in an inclined direction in the front-rear direction of the vehicle with respect to the vertical direction.
  2. 　前記第２の壁部は、前記側壁側の端部が屈曲して前記側壁と面接する第１のフランジ部を有し、当該第１のフランジ部の端部が前記側壁に溶接され、
    　前記第２の壁部は上下方向に延び、前記第１のフランジ部は車両前後方向となる幅が上下位置で異なることを特徴とする請求項１に記載の車両の荷箱固定構造。     The second wall portion has a first flange portion in which the end portion on the side wall side is bent and comes into contact with the side wall portion, and the end portion of the first flange portion is welded to the side wall portion.
    The vehicle packing box fixing structure according to claim 1, wherein the second wall portion extends in the vertical direction, and the width of the first flange portion in the front-rear direction of the vehicle differs depending on the vertical position.
  3. 　前記第２の壁部は、前記側壁側の端部が屈曲して前記側壁と面接する第１のフランジ部を有し、当該第１のフランジ部の端部が前記側壁に溶接され、
    　前記第２の壁部は、上下方向に対して車両前後方向に傾斜して延び、前記第１のフランジ部は車両前後方向となる幅が上下位置で同一であることを特徴とする請求項１に記載の車両の荷箱固定構造。     The second wall portion has a first flange portion in which the end portion on the side wall side is bent and comes into contact with the side wall portion, and the end portion of the first flange portion is welded to the side wall portion.
    Claim 1 is characterized in that the second wall portion extends in an inclined direction in the vehicle front-rear direction with respect to the vertical direction, and the width of the first flange portion in the vehicle front-rear direction is the same in the vertical position. Vehicle packing box fixing structure described in.
  4. 　前記第２の壁部は、前記第１の壁部の車両前後方向両端部から夫々下方に延びて、車両前後方向に互いに間隔をおいて２個設けられ、
    　２個の前記第２の壁部の間に、前記第１の壁部から屈曲して下方に延び前記側壁に溶接される第２のフランジ部を有し、
    　前記第２のフランジ部と前記側壁との溶接部は、前記第２の壁部と前記側壁との溶接部の上端より下方に位置することを特徴とする請求項１から３のいずれか１項に記載の車両の荷箱固定構造。     Two of the second wall portions extend downward from both ends of the first wall portion in the vehicle front-rear direction and are provided at intervals in the vehicle front-rear direction.
    Between the two second wall portions, there is a second flange portion that bends from the first wall portion and extends downward and is welded to the side wall portion.
    One of claims 1 to 3, wherein the welded portion between the second flange portion and the side wall portion is located below the upper end of the welded portion between the second wall portion and the side wall portion. Vehicle packing box fixing structure described in.
  5. 　前記第２の壁部は、前記第１の壁部の両端部から夫々下方に延びて、車両前後方向に互いに間隔をおいて２個設けられ、
    　２個の前記第２の壁部のうち、一方の前記第２の壁部のみ前記側壁との溶接部が、上下方向に対して車両前後方向に傾斜して延びることを特徴とする請求項１から４のいずれか１項に記載の車両の荷箱固定構造。     Two of the second wall portions extend downward from both ends of the first wall portion and are provided at intervals in the front-rear direction of the vehicle.
    Claim 1 is characterized in that, of the two second wall portions, only one of the second wall portions has a welded portion with the side wall extending inclined in the front-rear direction of the vehicle with respect to the vertical direction. The vehicle packing box fixing structure according to any one of 4 to 4.
PCT/JP2021/038581 2020-11-20 2021-10-19 Vehicle cargo box fixation structure WO2022107533A1 (en)

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JP2020193314A JP2024004501A (en) 2020-11-20 2020-11-20 Cargo box fixing structure of vehicle
JP2020-193314 2020-11-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6000719A (en) * 1997-04-28 1999-12-14 The Budd Company Body bracket and welding technique
US6434907B1 (en) * 2000-03-22 2002-08-20 Dana Corporation Closed channel structural member having internal reinforcement for vehicle body and frame assembly
US7334308B1 (en) * 2002-12-10 2008-02-26 Dana Corporation Method of securing a body mount support bracket on a vehicle body and frame assembly
JP2015202707A (en) * 2014-04-11 2015-11-16 いすゞ自動車株式会社 Front structure of cab-over type vehicle
JP2016078470A (en) * 2014-10-09 2016-05-16 三菱自動車工業株式会社 Cargo box mount bracket of vehicle
JP2019064517A (en) * 2017-10-04 2019-04-25 いすゞ自動車株式会社 Vehicle body lower structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6000719A (en) * 1997-04-28 1999-12-14 The Budd Company Body bracket and welding technique
US6434907B1 (en) * 2000-03-22 2002-08-20 Dana Corporation Closed channel structural member having internal reinforcement for vehicle body and frame assembly
US7334308B1 (en) * 2002-12-10 2008-02-26 Dana Corporation Method of securing a body mount support bracket on a vehicle body and frame assembly
JP2015202707A (en) * 2014-04-11 2015-11-16 いすゞ自動車株式会社 Front structure of cab-over type vehicle
JP2016078470A (en) * 2014-10-09 2016-05-16 三菱自動車工業株式会社 Cargo box mount bracket of vehicle
JP2019064517A (en) * 2017-10-04 2019-04-25 いすゞ自動車株式会社 Vehicle body lower structure

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