Vehicle Structure

Abstract

To provide a vehicle structure in which a mainstay member is less susceptible to damage when an impact is applied to a slide door.SOLUTION: A vehicle structure comprises: a floor; a door pocket for a slide door that projects inward of a vehicle from a rocker located at a side part of the vehicle; a mainstay member which is located at the inward with respect to the door pocket so as to overlap the door pocket when viewing the vehicle from the lateral side; and a guide member which is located at a position between the door pocket and the mainstay member on the floor. The guide member has an inclined plane which is gradually inclined above or below the vehicle as approaching the inward.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a vehicle structure having a sliding door. [Background technology]

[0002] Patent Document 1 discloses a vehicle structure having a sliding door. The sliding door slides in the front-rear direction of the vehicle. As shown in Fig. 3 of Patent Document 1, the sliding door is supported by a support arm, and the support arm is supported on a guide rail so as to be able to run. The front part of the guide rail curves inwardly of the vehicle as it approaches the front of the vehicle.

[0003] The guide rail is housed in an extension portion so as not to be exposed inside the vehicle cabin. The extension portion protrudes toward the inside of the vehicle from a locker disposed on the side of the vehicle. The extension portion is also called a door pocket. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2013-123935 A Summary of the Invention [Problem to be solved by the invention]

[0005] When an impact acts on a sliding door during a side collision of the vehicle, the door pocket may move toward the inside of the vehicle. Core components of the vehicle are located further inside the vehicle than the door pocket. Core components are, for example, components of the drive system that makes the vehicle run, or components of the braking system that stops the vehicle. If the core components are located so that they overlap the door pocket when viewed from the side of the vehicle, there is a risk that the door pocket moving toward the inside of the vehicle during a side collision will damage the core components.

[0006] An object of the present invention is to provide a vehicle structure in which key members are less likely to be damaged when an impact acts on a sliding door. [Means for solving the problem]

[0007] A vehicle structure according to one aspect of the present invention includes: Floor and a door pocket for a sliding door protruding from a locker disposed on a side of the vehicle toward the inside of the vehicle; A key member is disposed inward of the door pocket so as to overlap the door pocket when the vehicle is viewed from the side; a guide member disposed on the floor between the door pocket and the main member, The guide member has an inclined surface that slopes upward or downward toward the vehicle as it extends inward.

[0008] In the above vehicle structure, A floor cross member extending in the vehicle width direction at a position corresponding to the door pocket; a reinforcing member for absorbing a side impact of the vehicle, The reinforcing member is A base portion joined to the floor cross member; a plurality of branch portions branching from the base portion and joined to the rocker or a member joined to the rocker, The plurality of branches include a first branch and a second branch, a joint end portion of the first branch portion is disposed forward of the floor cross member of the vehicle, A joint end of the second branch portion may be located rearward of the floor cross member of the vehicle. Effect of the Invention

[0009] In the above vehicle structure, the guide member displaces the door pocket, which moves inward of the vehicle during a side collision, upward or downward. This significantly reduces the possibility that the door pocket will damage the core material. The guide member is also more advantageous in terms of cost, weight, and productivity than thickening the panels around the door pocket.

[0010] In a vehicle structure including the above-mentioned reinforcing member, a portion of the impact of a side collision is transmitted to the floor cross member by the reinforcing member. Here, since the first branch portion and the second branch portion of the reinforcing member are arranged to straddle the center of the width of the floor cross member along the longitudinal direction of the vehicle, the impact of the side collision transmitted to the reinforcing member is concentrated at the base portion of the reinforcing member and transmitted to the cross member. The floor cross member is resistant to impacts from the extension direction of the floor cross member and is therefore difficult to deform. Therefore, the floor cross member suppresses the inward movement of the sliding door, and as a result, the inward movement of the door pocket is also suppressed. Since the floor cross member is difficult to deform, the guide member arranged near the floor cross member is difficult to deform, and the function of the guide member is easily maintained. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic top view of a vehicle structure according to an embodiment. [Diagram 2] FIG. 2 is a cross-sectional view taken along the line II-II of FIG. [Diagram 3] FIG. 3 is a partially enlarged perspective view of the vicinity of the door pocket in FIG. [Figure 4] FIG. 4 is a partially exploded perspective view of the vicinity of the door pocket in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] An example of an embodiment of a vehicle structure according to the present invention will be described below with reference to the drawings. In the drawings, "FR" indicates the front of the vehicle, "RR" indicates the rear of the vehicle, "UP" indicates the top of the vehicle, "LWR" indicates the bottom of the vehicle, "LH" indicates the left side of the vehicle, and "RH" indicates the right side of the vehicle. The same symbols in the drawings indicate the same or equivalent parts. The sizes of the members shown in each drawing are expressed for the purpose of clarifying the explanation, and do not necessarily represent the actual dimensions. Note that the present invention is not limited to the following examples, but is indicated by the claims, and includes all modifications within the meaning and scope equivalent to the claims.

[0013] <Embodiment 1> 1 shows a vehicle structure 1 according to an embodiment as viewed from above the vehicle. The vehicle structure 1 of this example includes a floor 2 on which a seat (not shown) is placed. Two floor cross members 20, 21 are disposed on the floor 2. The floor cross members 20, 21 may be disposed under the floor 2.

[0014] A rocker 3 is disposed on the side of the floor 2, i.e., on the side of the vehicle. As shown in FIG. 2, the rocker 3 includes a rocker inner 30 disposed toward the inside of the vehicle and a rocker outer 31 disposed toward the outside of the vehicle. Only the rocker inner 30 is shown in FIG. 1. The rocker 3 is also called a side sill. The end of the floor 2 in the vehicle width direction is joined to the rocker inner 30. Here, FIG. 2 is a view of the II-II cross section of FIG. 1 as seen from the front of the vehicle, and the right side of FIG. 2 is the left side of the vehicle, and the left side of FIG. 2 is the right side of the vehicle. This is also true for FIG. 3 and FIG. 4.

[0015] A core member 4 is disposed below the floor 2. The core member 4 is a component part of the drive system or a component part of the braking system. Specific examples of the core member 4 include a battery, a high-voltage wire harness connected to the battery, a fuel tank, a fuel pipe, and a brake hose. The core member 4 in this example is connected to the side member 5 by a bracket not shown. The core member 4 in this example is a battery. The battery includes a battery body, a cooling device, and a control device. Depending on the type of core member 4, the core member 4 may be disposed above the floor 2. The side member 5 is disposed below a door pocket 39 described later.

[0016] A door pocket 39 is disposed in the rocker 3 of this example. The door pocket 39 is a member that houses the support arm 90 of the sliding door 9 inside. Most of the door pocket 39 is disposed in the hollow space of the rocker 3, and a part of the door pocket 39 protrudes from the rocker 3 toward the inside of the vehicle (also see FIG. 4). The door pocket 39 of this example is disposed above the floor 2, but may be disposed below the floor 2. At least a part of the core member 4 is disposed so as to overlap with the door pocket 39 when viewed from the side of the vehicle. If an impact acts on the sliding door 9 from the side of the vehicle during a side collision of the vehicle, there is a risk that the door pocket 39 will collide with the core member 4. The vehicle structure 1 of this example is provided with several configurations that reduce the possibility that the door pocket 39 will collide with the core member 4. The configurations will be described below one by one.

[0017] <Guide parts> The first component is a guide member 6 that is disposed in a position between the door pocket 39 and the main member 4 on the floor 2. The guide member 6 in this example is disposed in a portion where a step is formed on the floor 2. Unlike this example, the guide member 6 may be formed by the floor 2 itself.

[0018] The guide member 6 of this example has an inclined surface 6s that inclines upward from the vehicle toward the inside of the vehicle. As shown in the exploded perspective view of FIG. 4, the guide member 6 of this example is formed by bending a first edge portion 61 and a second edge portion 62 of a flat plate in opposite directions. The upper surface of the portion of the flat plate sandwiched between the first edge portion 61 and the second edge portion 62 is the inclined surface 6s. The first edge portion 61 is joined to a lower portion 2L of the floor 2 arranged on the outer side of the vehicle. The second edge portion 62 is joined to a higher portion 2H of the floor 2 arranged on the inner side of the vehicle. The joining may be performed by, for example, burn-through plug welding (SPW) or arc welding.

[0019] As shown in FIG. 2, the upper end of the inclined surface 6s is located above the upper end of the main member 4. The lower end of the inclined surface 6s is located below the lower end of the part of the door pocket 39 that protrudes from the rocker 3. The door pocket 39 that moves toward the inside of the vehicle due to a side collision is likely to come into contact with such an inclined surface 6s. The door pocket 39 that comes into contact with the inclined surface 6s moves obliquely upward along the inclined surface 6s. Therefore, the door pocket 39 is unlikely to collide with the main member 4. Unlike this example, the inclined surface 6s may be inclined downward as it moves toward the inside of the vehicle. In this case, it is preferable that the upper end of the inclined surface 6s is located above the upper end of the part of the door pocket 39 that protrudes from the rocker 3, and the lower end of the inclined surface 6s is located below the lower end of the main member 4.

[0020] <Floor Box> The second configuration is a floor box 7 shown in Figs. 2 to 4. The floor box 7 is a box-shaped member with an opening facing outward from the vehicle. As shown in Fig. 2, the floor box 7 is composed of a box lower 70 and a box upper 71. As shown in Fig. 4, the box lower 70 is composed of a bottom and three walls, and has an opening facing outward from the vehicle and an opening facing upward. A flange portion 70F is formed at the upper end of the three walls. As shown in Fig. 2, the bottom of the box lower 70 in this example has a shape that follows the inclined surface 6s of the guide member 6, and is composed of an inclined portion 70s that contacts the inclined surface 6s.

[0021] The box upper 71 is a plate-shaped member. An inner edge of the box upper 71 is joined to a flange portion 70F of the box lower 70. Meanwhile, an outer edge 71F of the box upper 71 is joined to the rocker 3. The box upper 71 seals the opening at the top of the box lower 70.

[0022] The opening of the floor box 7 facing outward from the vehicle faces the locker 3. The door pocket 39 protruding from the locker 3 is disposed in the internal space of the floor box 7. The floor box 7, together with the guide member 6, plays a role in deflecting the door pocket 39 upward as it moves inward into the vehicle. The floor box 7 also absorbs the impact of the door pocket 39 moving inward into the vehicle, preventing damage to the guide member 6. As a result, even if the floor box 7 is damaged, the door pocket 39 can be deflected upward by the guide member 6, reducing the possibility of the door pocket 39 colliding with the core member 4. The floor box 7 is not a required component.

[0023] <Reinforcing materials> The third component is a reinforcing member 8 that absorbs impacts from the side of the vehicle. As shown in Fig. 3, the reinforcing member 8 includes a base portion 80, and a first branch portion 81 and a second branch portion 82 branching off from the base portion 80. The number of branch portions of the reinforcing member 8 may be three or more.

[0024] The base portion 80 is joined to the floor cross member 20 disposed at a position corresponding to the portion of the door pocket 39 protruding from the rocker 3. The first branch portion 81 and the second branch portion 82 are joined to the floor box 7 joined to the rocker 3. The joint end of the first branch portion 81 is disposed forward of the floor cross member 20 in the vehicle. The joint end of the second branch portion 82 is disposed rearward of the floor cross member 20 in the vehicle. In this example, the first branch portion 81 and the second branch portion 82 are joined to the box upper 71 of the floor box 7 by screws, but they may be joined by welding or the like. The first branch portion 81 and the second branch portion 82 may also be joined to the rocker 3.

[0025] The reinforcing member 8 transmits a part of the impact of the side collision to the floor cross member 20. Therefore, the inward movement of the sliding door 9 is suppressed, and as a result, the inward movement of the door pocket 39 is also suppressed. Here, the first branch portion 81 and the second branch portion 82 of the reinforcing member 8 are arranged to straddle the center of the width of the floor cross member 20 along the longitudinal direction of the vehicle, so that the impact of the side collision transmitted to the reinforcing member 8 is concentrated at the base portion 80 of the reinforcing member 8 and transmitted to the floor cross member 20. The floor cross member 20 is resistant to impacts from the extension direction of the floor cross member 20, and is therefore difficult to deform. Since the floor cross member 20 is difficult to deform, the guide member 6 arranged near the floor cross member 20 is difficult to deform, and the function of the guide member 6 is easily maintained.

[0026] <Door pocket behavior during a side collision> When a side impact acts on the sliding door 9 shown in FIG. 2, the door pocket 39 moves inwardly of the vehicle and collides with the inner peripheral surface of the floor box 7. The door pocket 39 is guided by the inclined portion 70s of the floor box 7 and the inclined surface 6s of the guide member 6 and moves diagonally upward. As a result, the door pocket 39 is prevented from colliding with the core member 4. In addition, when the door pocket 39 moves diagonally upward, the joint between the sliding door 9 and the support arm 90 bends in a V-shape, and the end of the support arm 90 on the inner side of the vehicle faces upward. Therefore, the support arm 90 is prevented from breaking through the door pocket 39 and colliding with the core member 4. [Explanation of symbols]

[0027] 1 Vehicle structure 2nd Floor 2H Takabe 2L lower part 20,21 Floor cross member 3 Rocca 30 Rockinna 31 Rock Out 39 Door pocket 4. Core Materials 5 Side members 6 Guide member 6s slope 61 First edge 62 Second edge 7 Floor Box 70 Boxlore 71 Box Upper 70F flange part 70s slope section 71F Outer edge 8 Reinforcement members 80 Base 81 First Branch 82 Second branch 9. Sliding Door 90 Support Arm

Claims

1. Floor and a door pocket for a sliding door protruding from a locker disposed on a side of the vehicle toward the inside of the vehicle; A key member is disposed inward of the door pocket so as to overlap the door pocket when the vehicle is viewed from the side; a guide member disposed on the floor between the door pocket and the main member; a floor box having a box shape with an opening toward the outside of the vehicle; the guide member has an inclined surface that inclines upward or downward toward the vehicle as it extends inward, the inclined surface has an angle for guiding the door pocket, which has moved inward due to a side collision, along the inclined surface, The floor box has an inclined portion that contacts the inclined surface, The opening of the floor box faces the rocker. Vehicle structure.

2. A floor cross member extending in the vehicle width direction at a position corresponding to the door pocket; a reinforcing member for absorbing a side impact of the vehicle, The reinforcing member is A base portion joined to the floor cross member; a plurality of branch portions branching from the base portion and joined to the rocker or a member joined to the rocker, The plurality of branches include a first branch and a second branch, a joint end portion of the first branch portion is disposed forward of the floor cross member of the vehicle, The vehicle structure according to claim 1 , wherein a joint end portion of the second branch portion is disposed rearward of the vehicle relative to the floor cross member.

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