JP4800910B2 - Panel connection structure of vehicle box-type carrier - Google Patents

Description

  The present invention relates to a panel connection structure for a box-type cargo bed of a vehicle.

  Japanese Patent Application Laid-Open No. 11-139352 discloses a structure for connecting two panels that form the outer surface of a box-type cargo bed of a vehicle. A frame is fixed to the edge of each panel, and these frames are connected to bolts and nuts. A structure for fastening and fixing is described.

JP-A-11-139352

  However, in the above structure, since the frames are fastened and fixed with bolts and nuts, the assembling work of the box-type cargo bed is complicated, and man-hours and time are required.

  In addition, when disassembling the box-type cargo bed at the time of scrapped cars, the operation of releasing the connection between the panels is complicated.

  Then, this invention aims at provision of the panel connection structure of a box-type loading platform with a favorable assembly workability and dismantling workability.

  In order to solve the above object, a first aspect of the present invention is a panel connection structure for connecting two panel members forming an outer surface of a box-type cargo bed of a vehicle, and is coupled to the first frame and the second frame. A member.

  The first frame is fixed to the edge of one of the two panel members. The second frame is fixed to the edge of the other panel member of the two panel members. The coupling member is fitted between the first frame and the second frame to couple the two.

  The first frame includes a first engagement portion disposed on the inner side, a second engagement portion disposed on the outer side, and a first fitting recess forming surface. The second frame includes a third engagement portion that is disposed on the inner side and engages with the first engagement portion, a fourth engagement portion that is disposed on the outer side, and a second fitting recess forming surface.

  With the first engagement portion engaged with the third engagement portion, the movement of the first frame in the direction away from the second frame is restricted, and the first fitting recess forming surface and the second fitting recess are A fitting recess that is open to the outside with the forming surface is partitioned. The coupling member includes a fitting insertion portion that is fitted in the fitting recess, and a second engaging portion and a fourth engaging portion that are engaged with the fitting engaging portion in a state in which the fitting insertion portion is fitted in the fitting recess, respectively. A fifth engaging portion and a sixth engaging portion.

  The coupling member is in a coupled state in which the fitting insertion portion is fitted in the fitting recess, and the fifth engagement portion and the sixth engagement portion are engaged with the second engagement portion and the fourth engagement portion, respectively. Block movement of the first frame with respect to two frames.

  In the above configuration, when connecting the first frame and the second frame, first, the first engaging portion of the first frame is engaged with the third engaging portion of the second frame. In this state, the fitting recess is defined by the first fitting recess forming surface and the second fitting recess forming surface.

  Next, the fitting insertion portion of the coupling member is fitted into the fitting recess, and the fifth engaging portion and the sixth engaging portion are engaged with the second engaging portion and the fourth engaging portion, respectively. As a result, the first frame and the second frame are combined, and movement of the first frame relative to the second frame is prevented. In addition, at the time of fitting of the fitting insertion portion, the shape of the fitting concave portion is maintained by the engagement between the first engaging portion and the third engaging portion.

  As described above, since the first frame and the second frame are coupled by the coupling operation of the coupling member, the operation is remarkably simplified as compared with fastening by bolts and nuts and fixing by screws. Therefore, it is possible to reduce the man-hours and time for the assembly work and the dismantling work of the box-type carrier.

  According to a second aspect of the present invention, there is provided the panel connection structure according to the first aspect, wherein the coupling member includes a cover portion and a pair of the fitting insertion portions integrally extending from the cover portion and facing each other. And an engaging plate portion.

  The pair of engaging plate portions engages with the first fitting recess forming surface and the second fitting recess forming surface in the above-described combined state. A cover part covers a fitting recessed part from the outer side in the said connection state.

  In the said structure, since a cover part covers a fitting recessed part, the external appearance is good.

  According to a third aspect of the present invention, there is provided the panel connection structure according to the second aspect, wherein the first fitting recessed portion forming surface and the second fitting recessed portion are disposed between the pair of engaging plate portions in the coupled state. A seal member that is in close contact with at least one of the formation surfaces is provided.

  In the above configuration, since the sealing member is in close contact with at least one of the first fitting recess forming surface and the second fitting recess forming surface, intrusion of rainwater or the like from the fitting recess to the inside of the first frame and the second frame Can be reliably prevented.

  ADVANTAGE OF THE INVENTION According to this invention, the panel connection structure with a favorable assembly workability and dismantling workability can be obtained.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view schematically showing a box-type cargo bed of a van type truck having a panel connection structure of the present embodiment, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 4 is a cross-sectional view taken along arrow IV-IV in FIG. 1, FIG. 5 is an enlarged perspective view of a main part of FIG. 2, and FIG. 6 is an exploded perspective view of FIG. 5 showing a coupling member and a seal member. 7 is an exploded perspective view of FIG. 5 showing the first connecting portion and the fifth connecting portion. In the figure, “FR” indicates the front of the vehicle, “UP” indicates the upper side of the vehicle, and “IN” indicates the inner side in the vehicle width direction. In the following description, front and rear means front and rear of the vehicle, and left and right mean left and right in a state of facing the front of the vehicle.

  As shown in FIG. 1, a van type truck carrier 1 includes a front wall 2, left and right side walls 3, a ceiling 4, a rear wall 5 having double doors 7 and 8, and a floor 6. These edges are assembled in a box shape by being joined together. Since the left and right side walls 3 have a substantially symmetrical structure, the left side wall 3 will be described, and the description of the right side wall 3 will be omitted.

  As shown in FIGS. 2 and 3, the front wall 2 includes a front panel (panel member) 11, a front panel upper edge frame 12, left and right front panel side edge frames 13, and an lining plate 14.

  As shown in FIG. 2, the front panel upper edge frame 12 includes a front plate portion 15 arranged in the vertical direction, a panel fixing flange portion 16 extending downward from the lower end of the front plate portion 15, and a lower end of the front plate portion 15. It has the lining board support part 17 arrange | positioned back, and the upper board part 18 bent from the upper end of the front board part 15, and extended back. The upper plate portion 18 is formed with a first connecting portion 19 described later. The upper edge of the front panel 11 is fixed to the panel fixing flange 16 by rivets. The upper end edge portion of the lining plate 14 is accommodated and supported by the lining plate support portion 17.

  As shown in FIG. 3, the front panel side edge frame 13 includes a front plate portion 20 arranged in the vertical direction, a panel fixing flange portion 21 extending inward from the inner end of the front plate portion 20, and the front plate portion 20. It has a lining plate support portion 22 arranged on the inner side (rear side) and a hook-shaped front locking portion 23 extending outward from the outer surface of the lining plate support portion 22. The front plate portion 20 is formed with a second connecting portion 24 described later. The side edge portion of the front panel 11 is fixed to the panel fixing flange portion 21 by rivets. A side edge portion of the lining plate 14 is accommodated and supported by the lining plate support portion 22.

  As shown in FIGS. 3 and 4, the side wall 3 includes a side panel (panel member) 31, a side panel upper edge frame 32, a side panel front edge frame 33, and an lining plate 34.

  As shown in FIG. 4, the side panel upper edge frame 32 is disposed on the inner side of the lower end of the side plate 35, the side plate 35 disposed in the front-rear direction, the panel fixing flange 36 extending downward from the lower end of the side plate 35. And a top plate portion 38 that is bent from the upper end of the side plate portion 35 and extends inward. The upper plate portion 38 is formed with a third connecting portion 39 to be described later. The upper edge of the side panel 31 is fixed to the panel fixing flange 36 by rivets. The lining plate support portion 37 accommodates and supports the upper end edge portion of the lining plate 34.

  As shown in FIG. 3, the side panel front edge frame 33 is disposed on the inner side of the side plate portion 40 arranged in the vertical direction, the panel fixing flange portion 41 extending rearward from the rear end of the side plate portion 40, and the side plate portion 40. The lining plate support portion 42, the hook-like rear locking portion 43 disposed between the side plate portion 40 and the lining plate support portion 42, and the front plate bent inward from the front end of the side plate portion 40. Part 45. In a state where the rear locking portion 43 is locked to the front locking portion 23, the outer surface of the lining plate support portion 42 comes into surface contact with the outer surface of the lining plate support portion 22. The front plate portion 45 is formed with a fourth connecting portion 44 described later. The front end edge portion of the side panel 31 is fixed to the panel fixing flange portion 41 by rivets. The lining plate support portion 42 accommodates and supports the front end edge portion of the lining plate 34.

  As shown in FIGS. 2 and 4, the ceiling 4 includes an upper panel (panel member) 51, an upper panel front edge frame 52, left and right upper panel side edge frames 53, and an lining plate 54.

  As shown in FIG. 2, the upper panel leading edge frame 52 includes an upper plate portion 55 arranged in the front-rear direction, a panel fixing flange portion 56 extending rearward from the rear end of the upper plate portion 55, and the upper plate portion 55. And a lining plate support portion 57 disposed below. The upper plate portion 55 is formed with a fifth connecting portion 59 described later. A front end edge portion of the upper panel 51 is fixed to the panel fixing flange portion 56 by rivets. A front edge portion of the lining plate 54 is supported by the lining plate support portion 57.

  As shown in FIG. 4, the upper panel side edge frame 53 includes a panel fixing flange portion 61 arranged in the front-rear direction, and a lining plate support portion 62 arranged inside (downward) the panel fixing flange portion 61. Have. A sixth connecting portion 64 described later is formed outside the outer end of the panel fixing flange portion 61. The outer edge portion of the upper panel 51 is fixed to the panel fixing flange portion 61 by rivets. An outer edge portion of the lining plate 54 is supported by the lining plate support portion 62.

  The front panel 11, the side panel 31, and the upper panel 51 are plate members made of metal such as aluminum or iron, and form the outer surface of the box-type loading platform 1. The front panel upper edge frame 12, the front panel side edge frame 13, the side panel upper edge frame 32, the side panel front edge frame 33, the upper panel front edge frame 52, and the upper panel side edge frame 53 are made of, for example, aluminum or iron. Each of the frames 12, 13, 32, 33, 52, 53 has substantially the same cross-sectional shape along the longitudinal direction.

  A so-called composite panel (sandwich panel) may be used as the panel member. A composite panel is a panel member in which a lightweight inner layer is formed between an outer panel and an inner panel. The outer panel and the inner panel may be formed of a metal plate such as aluminum or iron, and the inner layer may be formed of a panel material made of foamed resin having a heat insulating effect.

  When assembling the box-type loading platform 1, first, the lower end of the front wall 2 is fixed to the floor 6 and the front wall 2 is erected. Next, the lower ends of the left and right side walls 3 are fixed to the floor 6 and the side edges of the front wall 2 and the front edges of the side walls 3 are joined. Next, the upper edge of the front wall 2 and the front edge of the ceiling 4 are combined, and the upper edge of the side wall 3 and the side edge of the ceiling 4 are combined. Finally, the periphery of the rear wall 5 is fixed to the side wall 3, the ceiling 4, and the floor 6, respectively.

  Next, a connecting structure of the upper edge of the front wall 2 and the front edge of the ceiling 4, a connecting structure of the side edge of the front wall 2 and the front edge of the side wall 3, and the upper edge of the side wall 3 and the side edge of the ceiling 4 The connection structure will be described.

  As shown in FIG. 2, the upper edge of the front wall 2 and the front edge of the ceiling 4 are the first connecting portion 19 of the upper edge frame 12 of the front panel, the fifth connecting portion 59 of the upper edge frame 52 of the upper panel, and the coupling member. 70. Similarly, the side edge of the front wall 2 and the front edge of the side wall 3 are, as shown in FIG. 3, the second connection portion 24 of the front panel side edge frame 13 and the fourth connection portion 44 of the side panel front edge frame 33. And the coupling member 70. Further, as shown in FIG. 4, the upper edge of the side wall 3 and the side edge of the ceiling 4 are coupled to the third connecting portion 39 of the side panel upper edge frame 32 and the sixth connecting portion 64 of the upper panel side edge frame 53. Coupled with member 70. One of the two frames coupled by the coupling member 70 corresponds to the first frame, and the other corresponds to the second frame.

  In this embodiment, the 1st connection part 19, the 3rd connection part 39, and the 4th connection part 44 are the substantially the same structures, and the 2nd connection part 24, the 5th connection part 59, and the 6th connection part 64 are substantially the same. Since it is the same structure, the connection structure of the 1st connection part 19 and the 5th connection part 59 is demonstrated on behalf of these, and the description is abbreviate | omitted about another connection structure.

  As shown in FIGS. 5 to 7, the first connecting portion 19 of the upper edge frame 12 of the front panel includes a first engaging portion 82, a second engaging portion 81, and a first fitting portion 83. The second engagement portion 81 has a groove-shaped engagement recess 81 a that is recessed inward (downward) from the outer surface of the upper plate portion 18 and opens upward. The first fitting portion 83 extends to the inner side (downward) behind the second engagement portion 81 behind the second engagement portion 81 and bends backward. The outer surface (rear surface and upper surface) of the first fitting portion 83 constitutes a first fitting recess forming surface 84, and a lower portion of the first fitting recess forming surface 84 is a locking projection 74a of an engaging member 70 described later. An engaging recess 85 that engages with the recesses is recessed forward. The first engaging portion 82 has a groove-shaped engaging recess 82 a that is bent rearward and upward from the rear end of the first fitting portion 83 and opens forward. Thus, the first fitting recess forming surface 84 is formed between the first engaging portion 82 and the second engaging portion 81.

  The fifth connecting portion 59 of the upper panel front edge frame 52 includes a third engaging portion 87, a fourth engaging portion 86, and a second fitting portion 88. The fourth engagement portion 86 has a groove-shaped engagement recess 86 a that is recessed inward (downward) from the outer surface of the upper plate portion 55 and opens upward. The second fitting portion 88 extends to the inner side (downward) of the fourth engagement portion 86 in front of the fourth engagement portion 86. The outer surface (front surface) of the second fitting portion 88 constitutes a second fitting recess forming surface 89, and a lower portion of the second fitting recess forming surface 89 is engaged with a locking projection 75a of the engaging member 70 described later. A mating engagement recess 90 is recessed toward the rear. The third engagement portion 87 protrudes rearward from the second fitting portion 88 and engages with the first engagement portion 82 (engagement recess 82a).

  With the first engagement portion 82 engaged with the third engagement portion 87, the movement of the front panel upper edge frame 12 in the direction away from the upper panel front edge frame 52 (forward) is restricted. Further, in this engaged state, the first fitting recess forming surface 84 and the second fitting recess forming surface 89 define and form a fitting recess 91 that opens outward (upward).

  The coupling member 70 includes a cover portion 71, a fifth engagement portion 72, a sixth engagement portion 73, and a pair of engagement plate portions (fitting insertion portions) 74 and 75. It fits between the panel front edge frames 52, and couples them together. The coupling member 70 is formed by extruding or drawing a metal such as aluminum or iron, and has substantially the same cross-sectional shape along the longitudinal direction.

  The cover part 71 has a flat plate shape. The fifth engaging portion 72 and the sixth engaging portion 73 protrude downward from both ends of the cover portion 71, respectively. The pair of engagement plate portions 74 and 75 are spaced apart from each other by a predetermined distance from the intermediate portion of the cover portion 71 and extend downward in opposition to each other. A locking projection 74a that protrudes forward projects from the lower end portion of the front engaging plate portion 74, and a locking projection 75a that projects backward projects from the lower end portion of the rear engaging plate portion 75. ing. Further, the front surface of the front locking projection 74a is inclined rearward and downward, and the rear surface of the rear locking projection 75a is inclined frontward and downward. These inclined surfaces function as a guide when the engaging plate portions 74 and 75 are inserted into the fitting recess 91.

  The distance between the engaging plate portions 74 and 75 and the plate thickness of each engaging plate portion 74 and 75 are such that the engaging plate portions 74 and 75 are inserted into the fitting recess 91 from the locking projections 74 a and 75 a side, and It is set so as to be fitted to the fitting recess 91 by being strongly pressed toward it. For example, the distance and the plate thickness are set so that the cover 71 is fitted into the fitting recess 91 by hitting the cover 71 with a hammer or the like from above. In the middle of the fitting, the locking projections 74a and 75a slide on the inner surface of the fitting recess 91 (the first fitting recess forming surface 84 and the second fitting recess forming surface 89), and the engaging plate portions 74 and 75 are moved. Slightly bends toward each other. Further, at the time of fitting, the engaging protrusions 74 a and 75 a engage with the engaging recesses 85 and 90, respectively, and the engaging plate portions 74 and 75 are firmly engaged with the engaging recess 91.

  In a state where the engagement plate portions 74 and 75 are fitted in the fitting recess 91, the fifth engagement portion 72 is engaged with the second engagement portion 81 (engagement recess 81a), and the sixth engagement portion 73 is engaged with the fourth engagement. The portions 86 (engaging recesses 86a) are respectively engaged. As a result, the front panel upper edge frame 12 and the upper panel front edge frame 52 are connected to each other, and the relative movement between the front panel upper edge frame 12 and the upper panel front edge frame 52 is prevented by the connecting member 70. In this coupled state, the upper portion of the fitting recess 91 is covered by the cover portion 71.

  A seal member 76 is mounted between the engagement plate portions 74 and 75. The seal member 76 has an insertion part 77 and a close contact part 78. The insertion portion 77 is formed of a hard elastic material (for example, non-foamed synthetic rubber), and the contact portion 78 is inserted by a soft elastic material (for example, a synthetic rubber foam) that is more easily elastically deformed than the insertion portion 77. It is formed integrally with the portion 77. The insertion portion 77 and the close contact portion 78 may be a resin material other than synthetic rubber.

  The insertion portion 77 is inserted between the engagement plate portions 74 and 75, and in this state, the close contact portion 78 protrudes from the tips (lower ends) of the engagement plate portions 74 and 75. The close contact portion 78 is in close contact with the inner surface of the fitting recess 91 (at least one of the first fitting recess forming surface 84 and the second fitting recess forming surface 89) in the above-described combined state. In the present embodiment, the lower portion of the close contact portion 78 includes a bottom surface 91a of the fitting recess 91, a front slope 91b that extends forward and upward from the front end of the bottom surface 91a to define the engagement recess 85, and a rear end from the rear end of the bottom surface 91a. It is in close contact with the rear slope 91c that extends upward and defines the engaging recess 90. The bottom surface 91 a and the front slope 91 b of the fitting recess 91 are a part of the first fitting recess forming surface 84, and the rear inclined surface 91 c is a part of the second fitting recess forming surface 89.

  When connecting the front panel upper edge frame 12 and the upper panel front edge frame 52, first, the first engagement portion 82 of the front panel upper edge frame 12 is engaged with the third engagement portion 87 of the upper panel front edge frame 52. To do. In this state, the fitting recess 91 is defined by the first fitting recess forming surface 84 and the second fitting recess forming surface 89.

  Next, the engaging plate portions 74 and 75 of the coupling member 70 to which the seal member 76 is attached are fitted into the fitting recess 91, and the fifth engaging portion 72 and the sixth engaging portion 73 are connected to the second engaging portion. 81 and the fourth engaging portion 86 are engaged. Thereby, the front panel upper edge frame 12 and the upper panel front edge frame 52 are connected to each other, and the movement of the front panel upper edge frame 12 with respect to the upper panel front edge frame 52 is prevented. Note that, when the engagement plate portions 74 and 75 are fitted, the shape of the fitting recess 91 is reliably held by the engagement of the first engagement portion 82 and the third engagement portion 87.

  As described above, the front panel upper edge frame 12 and the upper panel front edge frame 52 are joined by the fitting work of the joining member 70, so that the work is remarkable as compared with fastening with bolts and nuts and fixing with screws. Simplified. In addition, since the joining work of the joining member 70 can be performed from the outside of the box-type carrier 1, the workability is better than when working from the inside of the box-type carrier 1. Therefore, the man-hour and time of the assembly work and the dismantling work of the box-type carrier 1 can be greatly reduced.

  Further, in the fitted state, the fitting recess 91 is covered by the cover portion 71, so that the appearance is good.

  Further, since the contact portion 78 of the seal member 76 is in close contact with at least one of the first fitting recess forming surface 84 and the second fitting recess forming surface 89, the front panel upper edge frame 12 and the upper panel are connected from the fitting recess 91. Intrusion of rainwater or the like into the front edge frame 52 can be reliably prevented.

  In addition, although this embodiment demonstrated the connection of the panels in the corner part of the box-type loading platform 1, the said structure is applicable also to a corner part.

  As mentioned above, although the embodiment to which the invention made by the present inventor is applied has been described, the present invention is not limited by the discussion and the drawings that form part of the disclosure of the present invention according to this embodiment. That is, it should be added that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on this embodiment are all included in the scope of the present invention.

It is an external appearance perspective view which shows typically the box-type loading platform of the van type truck which has the panel connection structure of this embodiment. It is II-II arrow sectional drawing of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1. FIG. 4 is a cross-sectional view taken along arrow IV-IV in FIG. 1. It is a principal part expansion perspective view of FIG. It is a perspective view which shows a coupling member and a sealing member. It is a perspective view which shows a 1st connection part and a 5th connection part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Box-type loading platform 2 Front wall 3 Side wall 4 Ceiling 5 Rear wall 6 Floor 7,8 Door 11 Front panel (panel member)
12 Front panel upper edge frame 13 Front panel side edge frame 19 1st connection part 24 2nd connection part 31 Side panel (panel member)
32 Side panel upper edge frame 33 Side panel front edge frame 39 Third connecting portion 44 Fourth connecting portion 51 Upper panel (panel member)
52 Upper panel front edge frame 53 Upper panel side edge frame 59 Fifth connecting part 64 Sixth connecting part 70 Connecting member 71 Cover part 72 Fifth engaging part 73 Sixth engaging part 74, 75 Engaging plate part (fitting insertion) Part)
76 Seal member 81 Second engagement portion 82 First engagement portion 83 First engagement portion 84 First engagement recess forming surface 86 Fourth engagement portion 87 Third engagement portion 88 Second engagement portion 89 Second Fitting recess forming surface 91 Fitting recess

Claims (3)

A panel connection structure for connecting two panel members forming the outer surface of a box-type cargo bed of a vehicle,
A first frame fixed to an edge of one of the two panel members;
A second frame fixed to an edge of the other panel member of the two panel members;
A coupling member that is fitted between the first frame and the second frame to couple the two;
The first frame has a first engagement portion disposed on the inner side, a second engagement portion disposed on the outer side, and a first fitting recess forming surface.
The second frame includes a third engagement portion that is disposed on the inner side and engages with the first engagement portion, a fourth engagement portion that is disposed on the outer side, and a second fitting recess forming surface. Have
With the first engagement portion engaged with the third engagement portion, movement of the first frame in a direction away from the second frame is restricted, and the first fitting recess forming surface The second fitting recess forming surface defines a fitting recess that opens to the outside of the box-type cargo bed on the outer surface side of the first frame and the second frame ,
The coupling member includes a fitting insertion portion that is fitted into the fitting recess from the outside of the box-type carrier, and the second engagement portion and the fitting insertion portion are fitted in the fitting recess. A fifth engaging portion and a sixth engaging portion that respectively engage with the fourth engaging portion;
In the coupling member, the fitting insertion portion is fitted in the fitting recess, and the fifth engaging portion and the sixth engaging portion are engaged with the second engaging portion and the fourth engaging portion, respectively. A panel connection structure for a box-type cargo bed of a vehicle, wherein movement of the first frame relative to the second frame is prevented in a combined state. A panel connection structure for connecting two panel members forming the outer surface of a box-type cargo bed of a vehicle,
A first frame fixed to an edge of one of the two panel members;
A second frame fixed to an edge of the other panel member of the two panel members;
A coupling member that is fitted between the first frame and the second frame to couple the two;
The first frame has a first engagement portion disposed on the inner side, a second engagement portion disposed on the outer side, and a first fitting recess forming surface.
The second frame includes a third engagement portion that is disposed on the inner side and engages with the first engagement portion, a fourth engagement portion that is disposed on the outer side, and a second fitting recess forming surface. Have
With the first engagement portion engaged with the third engagement portion, movement of the first frame in a direction away from the second frame is restricted, and the first fitting recess forming surface The second fitting recess forming surface is partitioned to form a fitting recess that opens outward,
The coupling member includes a fitting insertion portion fitted in the fitting recess, and the second engagement portion and the fourth engagement portion in a state where the fitting insertion portion is fitted in the fitting recess. A fifth engaging portion and a sixth engaging portion that engage with each other;
In the coupling member, the fitting insertion portion is fitted in the fitting recess, and the fifth engaging portion and the sixth engaging portion are engaged with the second engaging portion and the fourth engaging portion, respectively. Preventing the movement of the first frame relative to the second frame in a combined state;
The coupling member includes a cover portion and a pair of engaging plate portions as the fitting insertion portion that extend integrally from the cover portion and face each other.
The pair of engagement plate portions engage with the first fitting recess forming surface and the second fitting recess forming surface in the coupled state, respectively.
The cover part covers the fitting recess from the outside in the coupled state. The panel connection structure according to claim 2,
A seal member is provided between the pair of engagement plate portions, and in close contact with at least one of the first fitting recess forming surface and the second fitting recess forming surface in the coupled state. Panel connection structure for a box-type cargo bed of a vehicle.

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