JP5853629B2 - Body structure - Google Patents

Description

  The present invention relates to a vehicle body structure including a reinforcing member that spans between a horizontal member and a vertical member that are disposed in the vicinity of a vehicle body mounting member that is a vibration generation source, reinforces the connection therebetween, and supports the vehicle body mounting member. It is about.

  In the vehicle body structure, the purpose is to improve vehicle body strength (joint strength) at a joint portion between a member extending in the vehicle width direction (hereinafter referred to as a horizontal member) and a member extending in the vehicle height direction (hereinafter referred to as a vertical member). A reinforcing member is provided. In particular, when such a horizontal member or vertical member is a structural member disposed in the vicinity of a radiator provided in the engine room, the reinforcing member may not only improve the vehicle body strength but also play a role of supporting the radiator. is there.

  For example, in a radiator mounting portion of a vehicle body disclosed in Patent Document 1, a stay (reinforcing member) that bridges them is provided between an upper cross member (horizontal member) and a side stay (vertical member). Accordingly, the stay serves as a tension rod, and the vehicle body structure is reinforced. Moreover, the stay of patent document 1 is attached to the upper part of a radiator, and is supporting it.

JP 2003-81034 A

  As is apparent from Patent Document 1, the shape of the horizontal member and the vertical member is different not only in the extending direction. Therefore, in order to obtain a sufficient welding area with the horizontal member and the vertical member and thus a high reinforcing effect, the shape of the reinforcing member is inevitably complicated. Then, naturally, the workability is lowered, so the yield is lowered, and the cost of the reinforcing member is increased, for example, the material cost is increased. In particular, when the reinforcing member serves not only to reinforce the vehicle body structure but also to support the radiator as described above, the shape of the reinforcing member is further complicated, so that such a problem becomes more prominent.

  Further, since the radiator is a component that generates vibration, that is, a vehicle body mounting member that is a vibration generation source, when a reinforcing member that plays a role of supporting the member is joined to the horizontal member and the vertical member (vehicle body structural member), the vehicle body In addition to the vibration from the road surface to the vehicle body and the vibration of the engine, the structural member is also loaded with the vibration of the radiator through the reinforcing member. Then, since damage such as welding peeling may occur at the joint portion with the vehicle body structural member, the reinforcing member for both the reinforcement of the vehicle body structure and the support of the vehicle body mounting member (radiator) has a simple and miniaturized shape. However, high joint strength (durability) is required at the joint with the vehicle body structural member.

  In view of such a problem, the present invention can obtain a high bonding strength even when the reinforcing member bonded to the horizontal member and the vertical member supports the vehicle-mounted member that is a generation source of vibration. The purpose is to provide a simple body structure.

  In order to solve the above-described problems, a representative configuration of the vehicle body structure according to the present invention includes a lateral member extending in the vehicle width direction in the vicinity of the upper part of the vehicle body mounting member that is a source of vibration, and a side vicinity of the vehicle body mounting member. A vertical member extending in the vehicle height direction, and a reinforcing member that spans and joins the horizontal member and the vertical member, and the reinforcing member supports the vehicle body mounting member, The joining surface with the transverse member and the joining surface with the longitudinal member are longitudinal surfaces substantially parallel to the vehicle height direction.

  In the reinforcing member, the joint surface between the horizontal member and the vertical member is a vertical surface in the reinforcing member, so that both joint surfaces are unified into a surface extending in the vehicle height direction (vehicle body height direction). Thereby, the vibration which a vehicle body receives, especially the vibration applied to an up-down direction with respect to a vehicle body turns into a force of a shear direction with respect to a joint surface. For this reason, durability with respect to vibration can be improved, and it becomes possible to suppress damage to joint parts, such as welding peeling. Therefore, high joint strength can be obtained in the reinforcing member.

  In addition, in the past, the joining surface between the transverse member and the longitudinal member is a longitudinal surface or a transverse surface, and the joining direction (direction of joining) differs depending on the joining surface, so during the joining operation with the reinforcing member, The direction of the joint (welding gun, tightening tool, etc.) had to be redirected according to the joint surface. On the other hand, according to the said structure, since the joining surface with a horizontal member and a vertical member is a vertical surface extended in a vehicle height direction, a joining direction is unified. Therefore, it is not necessary to change the orientation of the connector, and different surfaces and different members can be joined simply by translating the connector. For this reason, it is possible to improve the assembly workability.

  In the reinforcing member, the joint surface with the horizontal member and the joint surface with the vertical member may be disposed between the front end and the rear end of the vehicle body mounting member in the vehicle longitudinal direction. According to such a configuration, since the width in the longitudinal direction of the vehicle body can be shortened, the reinforcing member can be reduced in size, and the degree of freedom in the layout of the peripheral parts can be increased.

  Said reinforcement member is good to be arrange | positioned in the joint part vicinity of a horizontal member and a vertical member. Thereby, the reinforcement effect by a reinforcement member can further be heightened, and it becomes possible to contribute also to size reduction of a reinforcement member by extension.

  One of the horizontal member and the vertical member is preferably joined to the front surface side of the reinforcing member, and the other is joined to the back surface side of the reinforcing member. According to this configuration, it is possible to distribute the load load in a balanced manner.

  The vehicle body mounting member may be a radiator. The present invention is suitable for a vehicle body structure in which a reinforcing member that spans between a horizontal member and a vertical member that are arranged in the vicinity of a radiator that is a source of vibration and reinforces the joining thereof supports the radiator. Can be used.

  According to the present invention, there is provided a vehicle body structure capable of obtaining a high bonding strength even when a reinforcing member bonded to a horizontal member and a vertical member supports a vehicle-mounted member that is a generation source of vibration. can do.

It is a figure which illustrates the vehicle body structure concerning this embodiment. It is the elements on larger scale of FIG. FIG. 3 is a side view of FIG. 2. It is a figure which illustrates the modification of FIG. FIG. 3 is a top view of FIG. 2.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a diagram illustrating a vehicle body structure 100 according to this embodiment. FIG. 2 is a partially enlarged view of FIG. In the present embodiment, the case where the present invention is applied to the vehicle body structure near the front of the engine room provided at the front of the vehicle body is described as an example, but the present invention is not limited to this. Moreover, in this embodiment, although the case where a vehicle body structural member and a reinforcement member are joined by welding (spot welding), it is not limited to this, These are other means, such as fastening means, such as a bolt nut. May be joined.

  As shown in FIG. 1, in the vehicle body structure 100 (vehicle body front structure) according to the present embodiment, a radiator 102 that is a cooling performance component is disposed near the front of an engine room (not shown) provided in the vehicle body front part. Has been. An upper member 110, which is a lateral member extending in the vehicle width direction, is disposed near the upper portion of the radiator 102. Side braces 120a and 120b, which are vertical members extending in the vehicle height direction, are arranged near the side of the radiator 102. A frame of the vehicle body structure 100 is formed by the upper member 110 and the side braces 120a and 120b.

  As shown in FIGS. 1 and 2, a reinforcing member 130 is stretched over the upper member 110 and the side brace 120a, and the reinforcing member 130 is joined to the upper member 110 and the side brace 120a by spot welding (see FIGS. 1 and 2). In FIG. 2, spot welding locations are indicated by a one-dot chain line circle). Thereby, the joining of the upper member 110 and the side brace 120a is reinforced. In addition, the radiator bracket 104 connected to the radiator 102 is joined to the reinforcing member 130 of the present embodiment by bolts 104a. As a result, the reinforcing member 130 supports the radiator 102 via the radiator bracket 104.

  That is, in this embodiment, the radiator 102 is illustrated as a vehicle body mounting member that is a vibration generation source. As will be described in detail later, the present invention provides a vehicle body in which a reinforcing member 130 that spans between an upper member 110 (horizontal member) and a side brace 120a (vertical member) and reinforces the joining thereof generates vibration like the radiator 102. This provides an excellent effect on the vehicle body structure that supports the mounting member. In this embodiment, the radiator 102 is exemplified as the vehicle body mounting member. However, the present invention is not limited to this, and the present invention is naturally applied to a vehicle body structure in which the reinforcing member 130 supports the vehicle body mounting member as another vibration generation source. Is applicable.

  In the present embodiment, the upper member 110 and the side brace 120a are joined at their ends (hereinafter, the joined portion is referred to as a joining portion 106), and the reinforcing member 130 is connected to the joining portion 106. It is arranged in the vicinity. By arranging the reinforcing member 130 in the vicinity of the coupling portion 106 in this manner, the reinforcing member 130 functions as a tension rod between the upper member 110 and the side brace 120a. Therefore, the reinforcing effect by the reinforcing member 130 and the strength of the vehicle body structure 100 can be further improved. Further, arranging the reinforcing member 130 in the vicinity of the coupling portion 106 means that the reinforcing member 130 is arranged in the vicinity of the upper member 110 and the side brace 120a. Therefore, since it is not necessary to extend the reinforcing member 130 with respect to the upper member 110 and the side braces 120a, the reinforcing member 130 can be reduced in size, and both a reinforcing effect and a reduction in size can be achieved.

  FIG. 3 is a side view of FIG. As shown in FIG. 3, as a feature of the vehicle body structure 100 of the present embodiment, in the reinforcing member 130, the joint surface 132 with the upper member 110 (lateral member) and the joint surface 134 with the side brace 120 a (vertical member) are: The vertical surface is substantially parallel to the vehicle height direction (for ease of understanding, the joining surfaces 132 and 134 are shown by thick solid lines in FIG. 3). That is, the joint surfaces 132 and 134 are unified into a surface extending in the vehicle height direction (vehicle body height direction). Further, in the reinforcing member 130 of the present embodiment, the joining surface 136 (illustrated by a thick solid line in the same manner as the joining surfaces 132 and 134 in FIG. 3) with the radiator 102 (strictly, the radiator bracket 104 connected thereto) is also provided. The surface (vertical surface) extends in the vehicle height direction. Thereby, since the vibration which a vehicle body receives, especially the vibration applied to an up-down direction with respect to a vehicle body becomes a force of a shear direction with respect to the joint surfaces 132-136, durability of the welding peeling with respect to a vibration can be improved. Therefore, it is possible to enhance the reinforcing effect of the reinforcing member 130 and improve the bonding strength between the upper member 110 and the side brace 120a.

  Further, since the joining surfaces 132 and 134 in the reinforcing member 130 are unified as vertical surfaces extending in the vehicle height direction as in the above configuration, the joining direction (working direction, joining direction) at the time of joining work is also unified. . Conventionally, in the reinforcing member, the joining surface between the transverse member and the longitudinal member is a longitudinal surface or a transverse surface, and thus the joining direction differs depending on each joining surface. For this reason, at the time of joining work, the direction of a joining tool (not shown) such as a welding gun or a tightening tool has to be changed according to the joining surface, resulting in a reduction in work efficiency. On the other hand, in this embodiment, since the joining surfaces 132 and 134 are unified into a vertical surface, the joining direction is also unified, so that it is not necessary to change the direction of the joining tool, and a plurality of joint tools can be simply moved in parallel. Can be joined to the surfaces (joining surfaces 132 and 134). Therefore, since the labor during the work is reduced, it is possible to improve the assembling workability.

  Further, in the reinforcing member 130 shown in FIG. 3, the joint surface 132 with the upper member 110 and the joint surface 134 with the side brace 120a are between the front end and the rear end of the radiator 102, which is the vehicle body mounting member, in the vehicle longitudinal direction. Is arranged. By setting the joint surfaces 132 and 134 at positions close to each other in the longitudinal direction of the vehicle body in this way, the width of the reinforcing member 130 in the longitudinal direction of the vehicle body is shortened, so that the size of the reinforcing member 130 can be reduced. It becomes possible to increase the degree of freedom of layout of peripheral components.

  The joint surface 132 and the joint surface 134 are disposed between the front end and the rear end of the radiator 102. In other words, the width of the reinforcing member 130 in the longitudinal direction of the vehicle body is the width of the radiator 102 in the longitudinal direction of the vehicle body. It is that it fits inside. Thereby, it is possible to suitably suppress torsion that may be transmitted to the upper member 110 and the side brace 120a through the reinforcing member 130.

  Further, as described above, the reduction of the width of the reinforcing member 130 in the longitudinal direction of the vehicle body means that the swelling of the reinforcing member 130 in the longitudinal direction of the vehicle body is reduced (the depth becomes shallow). In sheet metal pressing, the deeper the shape of the part, the deeper the diaphragm, and the greater the pressure on the part shape and the occurrence of wrinkles with the intrusion of the press die. It was. However, according to the reinforcing member 130 of the present embodiment, since the swelling of the component shape is reduced, the aperture during processing can be shallowed. Therefore, the reinforcing member 130 can be easily formed by press working, and the yield at the time of forming can be improved.

  Further, in the reinforcing member 130, the joint surface 132 to the upper member 110 and the joint surface 134 to the side brace 120a are disposed between the front end and the rear end of the radiator 102 in the longitudinal direction of the vehicle body. The surfaces 132 and 134 are as close as possible in the longitudinal direction of the vehicle body. In the conventional structure, since the joint surface of the reinforcing member with the horizontal member or the vertical member is separated in the longitudinal direction of the vehicle body, the shape of the reinforcing member tends to be large, and the reinforcing member itself in order to ensure rigidity even in a large shape Reinforcement was necessary.

  As reinforcement to the reinforcing member itself, a large flange or a bulge was made by making it into a box shape, etc., but such reinforcement increases the weight of the component and the above As described above, there has been a problem that the workability during press working and thus the quality of the parts are reduced. On the other hand, in the reinforcing member 130 of this embodiment, since the miniaturization is achieved by bringing the joint surfaces 132 and 134 close to each other, it is not necessary to reinforce the reinforcing member 130 itself. Therefore, the shape of the reinforcing member 130 can be simplified, and as a result, weight reduction and cost reduction can be achieved.

  As shown in FIG. 2, in this embodiment, the upper member 110 is joined to the front surface side of the reinforcing member 130, and the side brace 120 a is joined to the back surface side of the reinforcing member 130. Accordingly, the reinforcing member 130 is disposed so as to be sandwiched between the upper member 110 and the side brace 120a. According to such a configuration, the load applied to the reinforcing member 130 by vibrations interacts with the three parts of the upper member 110, the side brace 120a, and the reinforcing member 130. Therefore, since such a load can be efficiently distributed without causing a single member to be intensively loaded, the reinforcing effect can be further improved.

  FIG. 4 is a diagram illustrating a modified example of FIG. 2 (also in FIG. 4, the spot welded portion is shown by a one-dot chain line circle). As described above, in this embodiment, the upper member 110 is joined to the front surface side of the reinforcing member 130 and the side brace 120a is joined to the back surface side of the reinforcing member 130 (see FIG. 2), but such a configuration is merely an example. However, the present invention is not limited to this. As shown in FIG. 4, the side brace 120 a may be joined to the front surface side of the reinforcing member 130, and the upper member 110 may be joined to the back surface side of the reinforcing member 130.

  FIG. 5 is a top view of FIG. In order to facilitate understanding, FIG. 5 illustrates the upper member 110 in a phantom line and a state where the lower member 110 is transparent. As described above, the reinforcing member 130 is disposed in the vicinity of the joint portion 106 between the upper member 110 and the side brace 120a, and the joint surfaces 132 and 134 are provided at the front portions of the upper member 110 and the side brace 120a, respectively. For this reason, the reinforcing member 130 does not enter the coupling portion 106 of the upper member 110 and the side brace 120a. Therefore, as shown in FIG. 5, the harness 108 can be disposed so as to pass through the upper member 110, and the degree of freedom in layout can be further increased. 5 shows a state in which the harness 108 is passed through the upper member 110, it goes without saying that the harness 108 can also be passed through the side brace 120a.

  As described above, according to the vehicle body structure 100 according to the present embodiment, the joint surfaces 132 and 134 of the reinforcing member 130 with the horizontal member (upper member 110) and the vertical member (side brace 120a) extend in the vehicle height direction. The surface (vertical surface) is unified. Therefore, the vibration applied to the vehicle body becomes a shearing force on the joint surfaces 132 and 134. Thereby, since durability with respect to vibration increases, damage to the joint portion can be suppressed, and high joint strength can be obtained in the reinforcing member 130. Further, since the joining surfaces 132 and 134 are unified into the vertical surface, the joining direction is also unified, so that the joining work of different surfaces can be performed only by translating the joining tool, and the assembling workability is improved. It is possible.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  The present invention relates to a vehicle body structure including a reinforcing member that spans between a horizontal member and a vertical member that are disposed in the vicinity of a vehicle body mounting member that is a vibration generation source, reinforces the connection therebetween, and supports the vehicle body mounting member. Can be used.

DESCRIPTION OF SYMBOLS 100 ... Car body structure, 102 ... Radiator, 104 ... Radiator bracket, 104a ... Bolt, 106 ... Connection part, 108 ... Harness, 110 ... Upper member, 120a ... Side brace, 120b ... Side brace, 130 ... Reinforcement member, 132 ... Joining surface 134 ... joint surface, 136 ... joint surface

Claims (4)

A lateral member extending in the vehicle width direction in the vicinity of the upper portion of the vehicle body mounting member that is a source of vibration;
A vertical member extending in the vehicle height direction in the vicinity of the side of the vehicle body mounting member;
A reinforcing member that is bridged between and joined to the transverse member and the longitudinal member;
The reinforcing member is a vehicle body structure that supports the vehicle body mounting member,
In the reinforcing member, the junction surface between the bonding surface and said longitudinal member and said transverse member, Ri substantially parallel longitudinal plane der the vehicle height direction, in the longitudinal direction of the vehicle from the front end of the vehicle body mounting member to the rear end vehicle body structure characterized that you have placed between.   A lateral member extending in the vehicle width direction in the vicinity of the upper portion of the vehicle body mounting member that is a source of vibration;
  A vertical member extending in the vehicle height direction in the vicinity of the side of the vehicle body mounting member;
  A reinforcing member that is bridged between and joined to the transverse member and the longitudinal member;
  The reinforcing member is a vehicle body structure that supports the vehicle body mounting member,
  In the reinforcing member, the joint surface with the transverse member and the joint surface with the longitudinal member are longitudinal surfaces substantially parallel to the vehicle height direction,
  One of the said horizontal member and the said vertical member is joined to the surface side of the said reinforcement member, and the other is joined to the back surface side of this reinforcement member. Body structure described.
Body structure characterized by that.   The vehicle body structure according to claim 1, wherein the reinforcing member is disposed in the vicinity of a joint portion between the horizontal member and the vertical member. The vehicle body structure according to any one of claims 1 to 3 , wherein the vehicle body mounting member is a radiator.

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