JP6410034B2 - Vehicle bed structure - Google Patents

Description

  The present invention relates to a loading platform structure for a vehicle such as a small truck.

  A loading platform of a vehicle such as a small truck is surrounded by a pair of side panels that extend in the front-rear direction of the vehicle and a rear gate that is freely opened and closed between the rear ends of the pair of side panels. For example, the rear gate is supported rotatably around a central axis extending along the lower edge, and the rear end of the loading platform is opened by rotating the upper end of the rear gate outward. .

  Various stresses are input to the pair of side panels due to vibration during traveling, opening / closing operation of the rear gate, and the like. In particular, stress tends to concentrate on the lower end of the inner panel. In order to suppress the concentration of stress on the inner panel of the side panel, there is a conventional structure in which a cross sill is provided on the lower surface side of the loading surface (floor panel) and the end of the cross sill is connected to the inner panel of the side panel with a reinforcing piece. It is known (see Patent Document 1). In this technique, the inner panel of the side panel is reinforced, and the durability of the side panel can be improved.

  Since the technique disclosed in Patent Document 1 can obtain an effect only at a portion where the cross sill is provided and its periphery, there are some portions where sufficient rigidity cannot be ensured in some cases. In particular, the rear end portion of the side panel is difficult to secure rigidity compared to other parts, and stress due to the opening and closing operation of the rear gate also acts, so the configuration of the above-mentioned patent document alone is insufficient in rigidity and improves durability. It is difficult. Increasing the thickness of the outer panel and inner panel of the side panel and providing a large number of reinforcing panels can increase the rigidity of the side panel itself. However, this increases the weight and the number of parts, which increases the cost. As a result, there was room for improvement.

Japanese Patent No. 3272648

  The present invention has been made in view of the above circumstances, and can increase the rigidity at the rear end portion of the side panel (side gate panel) by minimizing the increase in weight and the number of parts, thereby improving the durability. The purpose is to provide a cargo bed structure.

  In order to achieve the above object, a vehicle bed structure of the present invention according to claim 1 is a vehicle bed structure having a pair of side gates that form a side wall portion of the load bed and are provided with stop lamps at a rear end portion. A floor panel constituting a loading surface of the loading platform, a side gate inner panel constituting a wall surface on the inner side in the vehicle width direction of the side gate and having a lower end connected to the floor panel, and an outer side in the vehicle width direction of the side gate A side gate outer panel that constitutes a vehicle outer plate, a lamp housing that extends in the vehicle vertical direction and is attached to the stop lamp at a rear end portion of the side gate, and a rear side of the side gate inner panel At the end, a first closed cross section extending in the vehicle up-down direction is formed between the side gate inner panel and the rear side of the vehicle. A reinforcement that forms a second closed cross section extending in the vehicle vertical direction along with the first closed cross section between the extension panel joined to the lamp housing and the extension panel on the outer side in the vehicle width direction of the extension panel And a panel.

  In the present invention according to claim 1, since the two closed sections extending in the vehicle vertical direction are formed side by side at the rear end portion of the side gate inner panel, the rigidity at the rear end portion of the side gate inner panel is improved. For this reason, the displacement in the vehicle width direction of the side gate inner panel is suppressed by vibrations during traveling of the vehicle and input by opening and closing the rear gate, and stress concentration on the lower end of the side gate inner panel is suppressed.

  Therefore, it is possible to increase the rigidity at the rear end portion (the rear portion of the side gate) of the side gate panel while minimizing the increase in weight and the number of parts, and the durability can be improved.

  The vehicle bed structure of the present invention according to claim 2 is the vehicle bed structure according to claim 1, wherein the side gate inner panel extends inward in the vehicle width direction at the lower end side and the floor panel. The reinforcement panel is extended to the vehicle lower side than the floor panel, and a portion of the reinforcement panel extended below the floor panel and the side gate inner panel The lower surface of the extended portion is connected via a connecting member.

  In the present invention according to claim 2, since the lower part of the reinforcing panel extending in the vertical direction is supported by the bulkhead joined to the lower surface of the extension part of the side gate inner panel, it is aligned with the second closed section and the second closed section. The displacement in the vehicle width direction of the first closed cross section can be suppressed, and the rigidity can be further improved. That is, the displacement in the vehicle width direction can be more reliably suppressed at the rear end portion of the side gate inner panel.

  According to a third aspect of the present invention, there is provided a vehicle bed structure according to the second aspect, wherein the connecting member extends in a vehicle width direction and extends from a lower surface of the extension portion of the side gate inner panel. A first surface portion to be joined; and a second surface portion that extends in a vehicle vertical direction and is joined to the reinforcing panel. The reinforcing panel is between the second surface portion of the connecting member and the second closed cross section. It is characterized by forming a closed cross section that is continuous with.

  In the present invention according to claim 3, the closed section extending in the vertical direction is formed to extend in the vertical direction across the extension panel joined to the side gate inner panel and the bulkhead (second surface portion) below the floor panel. Therefore, the rigidity at the rear end portion of the side gate inner panel is further improved.

  According to a fourth aspect of the present invention, there is provided a vehicle bed structure according to any one of the first to third aspects, wherein the reinforcing panel includes the side gate inner panel and the extension. A rear end panel that is joined to a joining portion with the panel and extends in the vehicle width direction; one end is joined to the outer side in the vehicle width direction of the rear end panel; and the other end is extended rearward across the first closed cross section. It has the main panel joined to the junction part of an extension panel and the said lamp housing.

  In the present invention according to claim 4, the vehicle width direction outer side of the side gate inner panel can be reliably supported by the rear end panel and the main panel. In addition, since the second closed cross section can be arranged so as to surround the first closed cross section from the outside in the vehicle width direction to the rear side of the first closed cross section, the rigidity of the rear end portion of the side gate inner panel is more efficiently achieved. Can be improved.

  In the vehicle bed structure of the present invention, it is possible to increase the rigidity at the rear end portion of the side panel while minimizing the increase in weight and the number of parts, and to improve the durability.

1 is an external view of a small truck having a cargo bed structure according to an embodiment of the present invention. It is the perspective view which decomposed | disassembled the principal part of the loading platform. It is the III-III arrow directional view in FIG. It is the external view which fractured | ruptured the principal part of the rear-end part of a side gate partially. It is an external view showing the joining condition of the structural member of the rear-end part of a side gate. It is the conceptual diagram of the state which looked at the rear-end part of the side gate from the inner side of the loading platform. It is the conceptual diagram of the state which looked at the rear-end part of the side gate from the bottom face side of the loading platform. It is a conceptual diagram of the site | part of a bulkhead.

  A loading platform structure according to an embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is an external view of a small truck (pickup type truck) provided with a cargo bed structure according to an embodiment of the present invention, and FIG. 2 is an exploded view of components on a left side gate of a vehicle. The situation shown, FIG. 3 is a cross-sectional view of the rear end portion of the side gate (taken along the line III-III in FIG. 1), and FIG. 4 is a situation in which the main portion of the rear end portion of the side gate is partially broken. Is shown.

  5 shows the appearance of the rear end of the side gate. FIG. 5 (a) shows a state in which the first reinforcing panel, the side gate reinforcing panel and the rear end panel are attached, and FIG. 5 (b) shows the rear end. FIG. 5C shows a state where the main panel is attached to the panel and the first reinforcing panel and the reinforcing panel is joined, and FIG. 5C shows a state where the lamp housing is further joined.

  6 shows the appearance of the rear end of the side gate inner panel as viewed from the cargo compartment side, FIG. 7 shows the appearance of the rear end of the side gate inner panel as viewed from the bottom, and FIG. The appearance of the head part is shown.

  A small truck (pickup type truck) will be described with reference to FIG.

  A loading platform 3 is provided on the back surface of the cab 2 of the pickup type truck 1. The loading platform 3 is provided with a pair of side gates 4 extending in the front-rear direction of the vehicle and forming side walls, and a loading surface panel 5 as a floor panel is formed across the lower ends of the pair of side gates 4. . The opening 6 between the rear ends of the pair of side gates 4 is provided with a rear gate (not shown) that can be opened and closed, and a tail lamp 7 is disposed at the rear end of the side gate 4.

  The configuration of the rear end portion of the side gate 4 will be described with reference to FIGS.

  The side gate 4 is comprised by the side gate inner panel 11 and the side gate outer panel 12 used as the outer plate | board of a vehicle (side gate panel). The side gate inner panel 11 constitutes a wall surface on the inner side in the vehicle width direction of the side gate 4, and has an extension portion 11 a that extends on the inner side in the vehicle width direction and is connected to the loading surface panel 5 on the lower end side. ing. A driving portion 14 that bulges outward is formed at the rear end portion of the side gate inner panel 11 of the side gate 4, and a reinforcing member 15 is provided on the rear side of the driving portion 14.

  The reinforcing member 15 forms a closed space between the side gate inner panel 11 and the side gate outer panel 12, and the rigidity of the side gate 4 itself is maintained. By maintaining the rigidity of the side gate 4 itself by the reinforcing member 15, the side gate 4 can be prevented from falling down due to vibration during traveling, opening / closing operation of the rear gate, and the like, and the periphery of the tail lamp 7 can be reinforced.

  The reinforcing member 15 includes an extension panel 21, a side gate reinforcing panel 22, a rear end panel 23, and a main panel 24. The rear end panel 23 and the main panel 24 serve as a reinforcing panel 25. A lamp housing 26 is joined to the rear side of the reinforcing member 15.

  As shown mainly in FIGS. 3 and 4, an extension panel is provided on the opposite side (outer side in the vehicle width direction) of the loading surface panel 5 on the rear end side (rear side of the driving portion 14) of the side gate inner panel 11. 21 is arranged. The extension panel 21 forms a first closed section 27 that extends in the vertical direction between the extension panel 21 and the side gate inner panel 11.

  A reinforcement panel 25 including a rear end panel 23 and a main panel 24 is disposed outside the extension panel 21 in the vehicle width direction. The reinforcement panel 25 extends in the vertical direction between the extension panel 21 and the extension panel 21. Two closed sections 28 are formed.

  As a result, two closed sections (first closed section 27 and second closed section 28) extending in the vehicle vertical direction are formed side by side at the rear end of the side gate inner panel 11, so that the side gate inner panel 11 The rigidity at the rear end is improved. For this reason, the displacement of the side gate inner panel 11 in the vehicle width direction is suppressed by vibrations during traveling of the vehicle and input by opening and closing the rear gate, and stress concentration on the lower end portion of the side gate inner panel 11 is suppressed.

  The rear end panel 23 of the reinforcing panel 25 is a long panel having a U-shaped cross section and is arranged along the vertical direction. One flat surface 23a of the U-shaped portion of the rear end panel 23 is connected to the side gate inner panel 11 and the extension panel. It is joined to the joining site with 21. A portion extending in the vehicle width direction of the U-shaped portion of the rear end panel 23 is a width panel portion 23b, and the other flat surface 23c of the U-shaped portion of the rear end panel 23 is continuously formed in the width panel portion 23b.

  One end of the main panel 24 is joined to the outer side of the other flat surface 23c of the U-shaped portion of the rear end panel 23 (the outer side of the rear end panel in the vehicle width direction), and the side gate inner panel at a portion straddling the first closed section 27 11 and the extension panel 21 are joined at the other end of the main panel 24. As a result, the second closed section 28 is formed between the rear end panel 23 of the reinforcing panel 25, the main panel 24, and the extension panel 21.

  A long side gate reinforcing panel 22 extending in the vertical direction is joined to the rearmost end portion of the extension panel 21, and the lamp housing 26 extends from the side gate reinforcing panel 22 to the main panel 24 (rear side of the reinforcing member 15). It is joined. The side gate outer panel 12 is arranged from the outside of the reinforcing panel 25 to the outside of the side gate inner panel 11.

  The reinforcing panel 25 (rear end panel 23, main panel 24) extends below the vehicle surface from the loading surface panel 5, and extends downward from the floor panel of the reinforcing panel 25 (lower portions 23e, 24e). The lower surface of the extension part 11a of the side gate inner panel 11 is connected via a bulkhead 29 as a connecting member.

  As shown mainly in FIG. 8, the bulkhead 29 extends in the vehicle width direction and is joined to the lower surface of the extension portion 11a of the side gate inner panel 11, and the reinforcing panel 25 extends in the vehicle vertical direction. 2nd surface part 29b joined to the lower part (the rear end panel 23 and the lower parts 23e and 24e of the main panel 24). The reinforcing panel 25 forms a closed cross section that is continuous with the second closed cross section 28 between the reinforcing panel 25 and the second surface portion 29 b of the bulkhead 29.

  As shown in FIG. 5A, the extension panel 21 and the rear end panel 23 are joined to the rear end side of the side gate inner panel 11, and the side gate reinforcing panel 22 is joined to the rear end portion of the extension panel 21. The lower end 23e of the rear end panel 23 is joined to the front side of the second surface portion 29b of the bulkhead 29 of the rear end sill constituting the rear edge of the loading platform 3 (see FIG. 1), and the lower portion of the side gate reinforcing panel 22 is connected to the rear end sill. Bonded to the rear side of the bulkhead 29.

  Then, as shown in FIG. 5B, the main panel 24 is joined to the joining portion of the rear end panel 23, the side gate inner panel 11 and the extension panel 21, and the lower part 24e of the main panel 24 is provided with a rear end sill. It is joined to the central part of the second surface part 29b of the bulkhead 29.

  Further, as shown in FIG. 5C, a lamp housing 26 is joined to the side gate reinforcing panel 22, and a lower portion of the lamp housing 26 is joined to a bulk head 29 of a rear end sill.

  Note that reference numeral 20 in FIG. 3 denotes a hook provided on the extension panel 21 so as to protrude toward the stacking surface panel 5. That is, the hook 20 is attached to the stacking surface side of the rear end portion of the side gate 4.

  According to the above-described structure, the closed section extending in the vertical direction extends over the extension panel 21 joined to the side gate inner panel 11 and the bulkhead 29 (second surface portion 29b) below the stacking surface panel 5 (vertical direction). Therefore, the rigidity of the rear end portion of the side gate inner panel 11 is further improved.

  And since the lower part (rear end panel 23, the lower parts 23e and 24e of the main panel 24) of the reinforcement panel 25 extended in an up-down direction is supported by the bulkhead 29 joined to the lower surface of the extension part 11a of the side gate inner panel 11. Further, the displacement in the vehicle width direction of the second closed section 28 and the first closed section 27 aligned with the second closed section 28 can be suppressed, and the rigidity can be further improved. That is, the displacement in the vehicle width direction can be more reliably suppressed at the rear end portion of the side gate inner panel 11.

  Further, the outer side in the vehicle width direction of the side gate inner panel 11 can be reliably supported by the rear end panel 23 and the main panel 24. In addition, since the second closed cross-section 28 can be arranged so as to surround the first closed cross-section 27 from the vehicle width direction outer side of the first closed cross-section 27 to the rear side, the rear end portion of the side gate inner panel 11 The rigidity can be improved more efficiently.

  A configuration from the stacking surface panel 5 to the rear end portion of the side gate 4 will be described in detail with reference to FIGS.

  A front cross sill 31 extending in the vehicle width direction is provided on the bottom surface of the loading surface panel 5 of the side gate inner panel 11 on the front side of the driving portion 14, and the front cross sill 31 extends from the end of the front cross sill 31 to the outer surface of the side gate inner panel 11. A post member 32 is provided. The front post member 32 is provided to extend in the height direction of the side gate inner panel 11 along the front edge of the driving portion 14.

  A rear cross sill 33 extending in the vehicle width direction is provided on the bottom surface of the stacking surface panel 5 of the side gate inner panel 11 corresponding to the rear side edge of the driving portion 14, and the side gate inner panel 11 extends from the end of the rear cross sill 33. A rear post member 34 is provided on the outer surface. The rear post member 34 is provided on the side gate inner panel 11 toward the lower side of the rear edge of the driving portion 14.

  The upper portion of the rear post member 34 is directed to the rear end panel 23 (reinforcing panel 25). That is, the rear post member 34 and the rear end panel 23 (reinforcing panel 25) are arranged so as to overlap in the front-rear direction of the vehicle.

  Therefore, even if the driving portion 14 is formed on the side gate inner panel 11, the side gate inner panel 11 is continuously reinforced from the stacking surface panel 5 by the reinforcing member 15, the rear cross sill 33, and the rear post member 34. It can be carried out. That is, even if the driving portion 14 exists, the rigidity can be continuously increased from the side gate 4 to the back side of the loading surface of the loading platform.

  The cargo bed structure having the above-described configuration forms the first closed cross section 27 between the side gate inner panel 11 and the extension panel 21, and the first closed section 27 between the extension panel 21 and the reinforcing panel 25 (rear end panel 23, main panel 24). Since the two closed sections 28 are formed, it is possible to increase the rigidity by providing two closed sections on the rear end side of the vehicle of the side gate 4.

  Since the reinforcing panel 25 is composed of the rear end panel 23 and the main panel 24, the degree of freedom of the shape of the reinforcing panel 25 can be increased, and the second closed section 28 can be accurately formed on the side gate 4 even in a narrow space. Can be formed.

  Further, since the side gate reinforcing panel 22 is provided at the rear end portion of the side gate inner panel 11, the rear end portion of the side gate 4 can be reinforced. Therefore, it is possible to maintain the holding rigidity of the tailgate disposed between the rear end portions of the side gate 4, and even if the hook 20 is attached to the stacking surface side of the rear end portion of the side gate 4, Stiffness can be maintained.

  Therefore, the above-described loading platform structure can increase the rigidity at the rear end portion of the side gate inner panel 11 (side gate panel) while minimizing the increase in weight and the number of parts, and can improve the durability. As a result, it is possible to reinforce the periphery of the tail lamp 7 by suppressing the side gate 4 from falling due to vibration or the like due to running.

  As mentioned above, although one embodiment of the present invention has been described, of course, the present invention is not limited to the above-described embodiment, and addition, omission, replacement, etc., of a configuration is possible without departing from the spirit of the present invention. And other changes are possible.

  INDUSTRIAL APPLICABILITY The present invention can be used in the industrial field of a vehicle rear gate provided on a loading platform such as a small truck.

DESCRIPTION OF SYMBOLS 1 Pickup type truck 2 Cab 3 Loading platform 4 Side gate 5 Loading surface panel 6 Opening part 11 Side gate inner panel 12 Side gate outer panel 14 Driving part 15 Reinforcement member 20 Hook 21 Extension panel 22 Side gate reinforcement panel 23 Rear end panel 24 Main panel 25 Reinforcing panel 26 Lamp housing 27 First closed section 28 Second closed section 29 Bulkhead 29a First surface portion 29b Second surface portion 31 Front cross sill 32 Front post member 33 Rear cross sill 34 Rear post member

Claims (4)

A vehicle bed structure having a pair of side gates that form a side wall of the bed and a stop lamp is provided at the rear end,
A floor panel constituting the loading surface of the loading platform;
A side gate inner panel that constitutes a wall surface in the vehicle width direction of the side gate and whose lower end side is connected to the floor panel;
A side gate outer panel that is an outer wall surface of the side gate in the vehicle width direction and constitutes the outer plate of the vehicle;
A lamp housing extending in the vehicle vertical direction and attached to the stop lamp at the rear end of the side gate;
An extension panel that forms a first closed cross section extending in the vehicle vertical direction between the side gate inner panel and the side gate inner panel at the rear end of the side gate inner panel and extends rearward of the vehicle and joined to the lamp housing;
The vehicle further comprises a reinforcing panel that forms a second closed cross section extending in the vehicle vertical direction along with the first closed cross section between the extension panel and the extension panel. Loading platform structure. In the vehicle bed structure according to claim 1,
The side gate inner panel is
It has an extension part that extends inward in the vehicle width direction on the lower end side and is joined to the floor panel,
The reinforcing panel is
Extending below the vehicle from the floor panel,
A vehicle bed structure, wherein a portion of the reinforcing panel that extends downward from the floor panel and a lower surface of an extension portion of the side gate inner panel are connected via a connecting member. In the vehicle bed structure according to claim 2,
The connecting member is
A first surface portion extending in the vehicle width direction and joined to the lower surface of the extension portion of the side gate inner panel; and a second surface portion extending in the vehicle vertical direction and joined to the reinforcing panel;
The reinforcing panel is
A vehicle bed structure, wherein a closed cross section that is continuous with the second closed cross section is formed between the connecting member and the second surface portion. In the vehicle bed structure according to any one of claims 1 to 3,
The reinforcing panel is
A rear end panel that is joined to a joint portion between the side gate inner panel and the extension panel and extends in a vehicle width direction;
One end is joined to the rear end panel in the vehicle width direction, and the other end extends rearward across the first closed section, and a main panel joined to the joining portion between the extension panel and the lamp housing. A cargo bed structure of a vehicle characterized by having.

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