JP5556306B2 - Frame structure with built-in resin body - Google Patents

Description

  The present invention relates to a frame structure in which a resin body for reinforcing the frame body is built in a tubular metal frame body.

  A vehicle frame such as a side pillar or a side sill that constitutes a part of a vehicle body of a vehicle such as an automobile is generally configured as a closed cross-sectional structure in which a metal plate-like material is formed in a closed cross-sectional shape. As a vehicle frame, there is also known a vehicle frame that is reinforced by attaching a reinforcing member inside a closed cross-sectional structure in order to ensure strength and rigidity.

  For example, Patent Document 1 discloses a structure in which a metal reinforcing member is disposed and reinforced in a pillar having a closed cross-sectional structure. Further, for example, Patent Document 2 discloses a structure in which a resin reinforcing member is disposed in a hollow portion of a hollow structure such as a pillar.

JP 2008-279904 A JP 2001-191949 A

  However, the thing of the said patent document 1 will cause the increase in a weight by arrange | positioning metal reinforcement members. Moreover, although the thing of the said patent document 2 can suppress an increase in weight by using the resin-made reinforcement member compared with the thing of the said patent document 1, the further weight reduction is calculated | required. ing.

  On the other hand, for vehicle frames arranged on the side of the vehicle body, such as side pillars and side sills, a bending load is applied at the time of a side collision. Therefore, high bending rigidity is required against external loads in order to protect passengers. ing. Therefore, in a vehicle frame, in a frame structure in which a resin body for reinforcing the frame body is built in a metal frame body, how to improve the bending rigidity of the frame body while reducing the weight is an important issue. It has become.

  Accordingly, an object of the present invention is to provide a frame structure incorporating a resin body that can improve the bending rigidity of the frame body while reducing the weight.

For this reason, the invention according to claim 1 of the present application is a frame structure in which a resin body for reinforcing the frame body is built in a tubular metal frame body, and the frame body is bent from the outside. A first surface portion on which a force in the compression direction acts when a load is applied, a second surface portion on which a force in the tensile direction acts, and the first surface portion located between the first surface portion and the second surface portion of the frame body And the second surface portion, and the third surface portions on both sides forming corners, respectively, are formed in a substantially rectangular cross section, and the resin body includes the first surface portion and the third surface portion of the frame body. And a base portion that is adhesively bonded to the inner surface of the corner portion so as to coincide with the corner portion formed between the base portion and the second surface portion extending substantially along the third surface portion from the base portion, and a tip end of the third surface portion. Two main body portions provided with leg portions that match and abut on the two surface portions side, and the two books Are disposed near the third surface portions on both sides inside the frame main body, and the side portions of the legs of the two main body portions on the inner side of the frame main body extend from the first surface portion side to the second surface portion. The frame main body includes a bottom surface, a side surface portion on both sides extending in a substantially vertical direction from the bottom surface portion, and a flange portion on both sides extending outward from the side surface portions on both sides. A first plate member and a second plate member each formed in a hat shape, and the flange portion of the first plate member and the flange portion of the second plate member are overlapped with each other. The first surface portion is formed of a bottom surface portion of the first plate member, the second surface portion is formed of a bottom surface portion of the second plate member, and the first surface portion is formed of a bottom surface portion of the second plate member. Three surface portions are the side surface portions of the first plate-like member and the first Made from the side portion of the plate-like member, the leg portions of the two body portions, said second are respectively abutted against the side surface portions on both sides of the plate-like member, characterized in that.

  The invention according to claim 2 of the present application is the invention according to claim 1, wherein the main body portion is recessed in a substantially central portion between the first surface portion and the second surface portion on the third surface portion side. A recess is provided, and a gap is formed between the main body and the third surface.

Further, the invention according to claim 3 of the present application is the invention according to claim 1 or 2, wherein the resin body is formed integrally with the two main body portions while connecting the two main body portions. It further has a connection part, and this connection part is arranged near the 1st surface part of the above-mentioned frame body in the state where it separated from the 1st surface part of the above-mentioned frame body.
Still further, an invention according to claim 4 of the present application is characterized in that, in the invention according to claim 1 or 2, the two main body portions are formed separately from each other.

  According to the frame structure incorporating the resin body according to claim 1 of the present application, the resin body matches the corner portion formed between the first surface portion and the third surface portion of the frame main body and is formed on the inner surface of the corner portion. Two bases including a base part to be adhesively bonded and a leg part extending from the base part to the second surface part side substantially along the third surface part and having a distal end matching and abutting the second surface part side of the third surface part By having a main body, when a bending load is applied from the outside, when the load input to the first surface portion is transmitted to the third surface portion through the corner portion, it is also transmitted to the resin body to disperse the load. Therefore, the bending rigidity of the frame body can be increased.

  Further, when the bending load is applied from the outside, the corner portion that can be a starting point for the inward deformation of the first surface portion of the frame body and the out-of-plane deformation of the third surface portion caused by the deformation is reinforced by the resin body. Therefore, the inward deformation of the first surface portion of the frame body and the out-of-plane deformation of the third surface portion caused by the deformation can be suppressed, and the bending rigidity of the frame body can be increased.

Furthermore, two main body portions having leg portions that are brought into contact with and in contact with the second surface portion side of the third surface portion are disposed near the third surface portions on both sides inside the frame main body, and two The side part of the leg part of the main body part on the inner side of the frame main body is provided so as to move away from the first surface part side toward the second surface part, so that the load transmitted to the resin body can be reduced. Since it can transmit to the 2nd surface part side and can pull the 2nd surface part to the 3rd surface part side, it can control that the 2nd surface part is displaced to the inward side of a frame body, and can bend the rigidity of a frame body. Can be increased.
In particular, the frame body has a substantially rectangular cross section by overlapping and joining the flange portions of the first and second plate-like members respectively formed in a cross-sectional hat shape having a bottom surface portion, a side surface portion, and a flange portion. It is formed in a shape, the first surface portion is composed of the bottom surface portion of the first plate member, the second surface portion is composed of the bottom surface portion of the second plate member, and the third surface portion is the side surface portion of the first plate member. And a load transmitted to the resin body by the leg portions of the two main body portions being in contact with the side surface portions on both sides of the second plate member. Can be transmitted to the side surface portion of the second plate-shaped member and the bottom surface portion of the second plate-shaped member can be pulled to the side surface portion side of the second plate-shaped member, so that the bottom surface portion of the second plate-shaped member Can be prevented from being displaced inward of the frame body, and the bending rigidity of the frame body is increased. Door can be.

  In addition, the resin body is provided so that the side portions of the leg portions of the two main body portions on the inner side of the frame main body are separated from the first surface portion side toward the second surface portion. Since it is possible to reduce the weight by reducing a portion that does not contribute much to the improvement in bending rigidity, it is possible to improve the bending rigidity of the frame body while reducing the weight.

  According to the invention of claim 2 of the present application, the main body portion is provided with a concave portion that is recessed in a substantially central portion between the first surface portion and the second surface portion on the third surface portion side. By forming a gap between the third surface portion, the portion that does not contribute much to the bending rigidity of the frame body can be thinned and further weight reduction can be achieved, and the above effect can be more effectively achieved. Can play.

Further, according to the invention of claim 3 of the present application, the resin body further includes a connecting portion that connects the two main body portions and is integrally formed with the two main body portions, and the connecting portion includes the frame main body. By being arranged close to the first surface portion of the frame main body in a state of being separated from the first surface portion, it is possible to prevent the two main body portions from falling to the inner side of the frame main body when a bending load is applied from the outside. The bending rigidity of the frame body can be further improved. In addition, the resin body can be easily molded and mounted in the frame body by improving the work efficiency by integrally molding the two body parts and the connecting part. Can do.
Furthermore, according to the invention according to claim 4 of the present application, the two main body portions are formed separately from each other, thereby connecting the two main body portions and integrating with the two main body portions. Compared with the case where the connecting portion is formed, the weight can be reduced, and the bending rigidity of the frame body can be improved while reducing the weight.

1 is a schematic perspective view showing a frame structure according to a first embodiment of the present invention. It is a principal part enlarged view which expands and shows the principal part of the frame structure shown in FIG. It is sectional drawing of the frame structure along the Y3-Y3 line | wire in FIG. It is a schematic perspective view which shows the frame structure which concerns on the 2nd Embodiment of this invention. It is a principal part enlarged view which expands and shows the principal part of the frame structure shown in FIG. FIG. 6 is a cross-sectional view of the frame structure taken along line Y6-Y6 in FIG. It is a schematic perspective view which shows the frame structure which concerns on the 3rd Embodiment of this invention. It is the figure which cut | disconnected the frame structure shown in FIG. 7 in the cross section along line Y8-Y8. FIG. 8 is a cross-sectional view of the frame structure taken along line Y9-Y9 in FIG. It is sectional drawing which shows the frame structure which concerns on the 4th Embodiment of this invention. It is sectional drawing which shows the frame structure which concerns on the 5th Embodiment of this invention. It is explanatory drawing for demonstrating the simulation for analyzing the bending deformation behavior of a frame main body. It is a perspective view which shows the result of having carried out the simulation analysis of the bending deformation behavior of a frame main body. It is sectional drawing of the bending part of the frame main body in FIG. It is a graph which shows the relationship between the downward stroke of an indenter, and the reaction force with respect to a load, and the relationship between the downward stroke of an indenter, and energy absorption amount. It is explanatory drawing for demonstrating the analysis model for performing topology optimization about the resin body incorporated in the frame main body. It is sectional drawing for demonstrating the optimal shape of the resin body obtained by topology optimization. It is a figure for demonstrating the reason the resin body shown in FIG. 17 is an optimal shape.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description, terms that mean a specific direction such as “up”, “down”, “right”, “left” and other terms including those terms are used. In order to facilitate understanding of the referenced invention, the technical scope of the present invention is not limited by the meaning of these terms.

  The inventors of the present application have a frame structure in which a resin body for reinforcing the frame body is incorporated in a tubular metal frame body having a rectangular cross section, and the frame body can improve the bending rigidity of the frame body while reducing the weight. In developing the structure, first, a simulation analysis was performed on the deformation behavior when a bending load was applied to the tubular frame body having a rectangular cross section from the outside.

FIG. 12 is an explanatory diagram for explaining a simulation for analyzing the bending deformation behavior of the frame body, FIG. 13 is a perspective view showing a result of simulation analysis of the bending deformation behavior of the frame body, and FIG. It is sectional drawing of the bending part of the frame main body in FIG. In FIG. 13, the magnitude of the deformation amount of each part of the frame body is represented by shades of color, and the larger the deformation amount, the darker the color. In FIGS. 13 and 14, the progress of bending deformation of the frame body is represented by (a ), (B), (c), and (d) in this order, and the descending strokes of the indenter shown in FIG. 15 to be described later are S ₀ , S ₁ , S ₂ , and S ₃ .

  In this simulation, the metal frame main body 200 is positioned between the upper surface portion 200a, the lower surface portion 200b, the upper surface portion 200a and the lower surface portion 200b, and between the upper surface portion 200a and the lower surface portion 200b, the corner portions 200d, Side surface portion 200c forming 200e, that is, the right side surface portion 200c between the right end portion of the upper surface portion 200a and the right end portion of the lower surface portion 200b in FIGS. 13 and 14, and the left end portion of the upper surface portion 200a and the lower surface portion 200b. A simulation analysis was performed using a model having a left side surface portion 200c between the left end portion and a closed cross section having a rectangular cross section.

  Specifically, as shown in FIG. 12A, a frame main body 200 having a predetermined length X1 is supported by two fixing points 201 separated by a predetermined distance X2 shorter than the length X1, and two frames 200 are supported. The indenter 202 is lowered at a constant speed from above to the central portion P1 in the longitudinal direction of the upper surface portion 200a of the frame body 200 corresponding to the intermediate position of the fixed point 201, and the load is input from the outside through the indenter 202 at the time of a vehicle collision A load F simulating the above was applied to the frame body 200, and the bending deformation behavior of the frame body 200 was examined.

  When a bending load F is applied to the frame body 200 from the outside, as shown in FIG. 12B, the frame body 200 is bent and deformed in a convex shape on the lower side, and the upper surface portion 200a is compressed from both ends in the longitudinal direction. Thus, compressive stress is generated by the force of force, and tensile stress is generated by the force in the tensile direction from both ends in the longitudinal direction at the lower surface portion 200b. Further, in the side surface portion 200c, compressive stress is generated on the upper surface portion 200a side from the neutral shaft 210, and tensile stress is generated on the lower surface portion 200b side from the neutral shaft 210.

  FIG. 15 is a graph showing the relationship between the descending stroke of the indenter and the reaction force against the load, and the relationship between the descending stroke of the indenter and the energy absorption amount. In FIG. 15, the indenter 202 is placed on the upper surface portion 200 a of the frame body 200. The horizontal axis represents the descending stroke from the contact position, the reaction force F ′ against the load F is displayed on the left vertical axis, and the energy absorption amount EA is displayed on the right vertical axis. The energy absorption amount EA is energy that can be absorbed when the frame body 200 is bent and deformed, and is represented by the product of the reaction force F ′ with respect to the load F and the descending stroke of the indenter 202.

As shown in (a) of FIG. 13 and FIG. 14, when downward stroke of the indenter indenter 202 is positioned in contact with the upper surface portion 200a is _{S 0,} the frame body 200, the vertex P2 of the corner portion 200d is the angular It is located substantially vertically above the vertex P3 of the portion 200e. The vertices P2 and P3 represent the vertices of the corner portions 200d and 200e in the cross section having the bent portion when the frame main body 200 is bent, that is, the central portion P1.

  When the indenter 202 is moved downward from this state and a load F is applied to the frame main body 200, the reaction force F ′ against the load F increases as the descending stroke of the indenter 200 increases, and the frame main body 200 is convex downward. The frame body 200 is bent and deformed from the central portion P1 to which the load F is applied by applying a force in the compression direction on the upper surface portion 200a and a force in the tensile direction on the lower surface portion 200b. .

Reaction force F 'is maximized with respect to the load F when downward stroke of the indenter 202 is S _1, as shown in (b) of FIG. 13 and FIG. 14, the frame body 200 is curved in a convex shape in the lower deformation At the same time, the frame body 200 is deformed to the inner side of the frame body 200 formed in a closed cross-section, and along with this deformation, the side surface part 200c adjacent to the upper surface part 200a swells outward in the cross-sectional direction to cause out-of-plane deformation. The vertex P2 of the corner portion 200d is inclined outward from the substantially vertical direction with respect to the vertex P3 of the corner portion 200e, and a portion having a large amount of deformation is generated in the corner portion 200d as indicated by a deformation point α in FIG. . Further, the lower surface portion 200b is displaced inward of the frame main body 200 along with this deformation.

  When the descending stroke of the indenter 202 is further increased, the reaction force F ′ with respect to the load F is decreased along with the descending stroke of the indenter 202, and as shown in FIGS. Is further deformed by bending, and the upper surface portion 200a is further deformed inwardly of the frame body 200. With this deformation, the side surface portion 200c further bulges outward in the cross-sectional direction to cause out-of-plane deformation, and the lower surface portion. 200d is further displaced inward of the frame body 200, and the frame body 200 is bent and deformed and buckled.

  From this simulation analysis result, when a bending load is applied from the outside to the frame body formed in a closed cross-sectional shape with a rectangular cross section, first, the upper surface where the force in the compression direction acts is along the input direction of the load. The inner surface of the frame body is deformed inward, and in accordance with this deformation, the side surface portion adjacent to the upper surface portion swells to the outer side of the frame body to cause out-of-plane deformation and a force in the tensile direction acts. Was displaced inward of the frame body, and it was found that the frame body was bent and deformed and buckled.

  In addition to the simulation analysis described above, an experiment for investigating the deformation behavior of an actual vehicle frame formed in a closed cross-sectional shape with a rectangular cross section when a bending load is applied to the frame body from the outside is similarly applied. In this experiment, the same results as the simulation analysis results described above were obtained.

  Further, the inventors of the present application have incorporated a resin body for reinforcing the frame body into a tubular metal frame body in developing a frame structure capable of improving the bending rigidity of the frame body while reducing the weight. The topology optimization method was applied to the frame structure, and the optimal shape of the resin body was analyzed.

  FIG. 16 is an explanatory diagram for explaining an analysis model for performing topology optimization on the resin body built in the frame body. In this analysis, as shown in FIG. 16, as a frame structure 300, flange portions 311c and 312c of two metal plate-like members 311 and 312 formed in a cross-sectional hat shape are overlapped to form a closed cross-sectional shape. Using a model in which the resin body 320 is filled in the formed metal frame main body 310 via a foamable adhesive 315 (see FIG. 17), as shown in FIG. The case where the load F was applied to the central part in the longitudinal direction of the frame main body 310 in the state where the vicinity of the part was supported was analyzed.

  FIG. 17 is a cross-sectional view for explaining the optimum shape of the resin body obtained by topology optimization, and shows a cross section of the central portion in the longitudinal direction of the frame body. The flange portions 311c and 312c of the two metal plate-like members 311 and 312 which are provided with the bottom surface portions 311a and 312a, the side surface portions 311b and 312b, and the flange portions 311c and 312c and have a cross-sectional hat shape are overlapped with each other. The optimal shape of the resin body by topology optimization using a model of the frame structure 300 in which the resin body 320 is incorporated in the metal frame main body 310 formed in a closed cross-sectional shape with a rectangular cross section via the foamable adhesive 315 As a result, a shape as shown in FIG. 17 was obtained. In this topology optimization, the optimal shape of the resin body was analyzed by sequentially removing portions that do not contribute to the improvement of the bending rigidity of the frame body 310, with a predetermined bending rigidity as a constraint.

  When the bending load F acts on the frame body 300 from the outside, as described above, a force in the compression direction acts on the bottom surface portion 311 a of the first plate member 311, and on the bottom surface portion 312 a of the second plate member 312. A force in the tensile direction acts, and the side surface portion 311b of the first plate member 311 and the side surface portion 312b of the second plate member 312 are compressed on the bottom surface portion 311a side of the first plate member 311 from the neutral axis. Directional force acts, and tensile stress is generated on the bottom surface 312a side of the second plate-like member 312 from the neutral axis.

  In the following description, the bottom surface portion 311a of the first plate-shaped member 311 is appropriately expressed as a first surface portion 311a, and the bottom surface portion 312a of the second plate-shaped member 312 is appropriately expressed as a second surface portion 312a. The side surface portion 311b of the member 311 and the side surface portion 312b of the second plate-shaped member 312 are represented as third surface portions 311b and 312b.

  The resin body 320 shown in FIG. 17 includes two main body portions 321 extending from the first surface portion 311a of the frame main body 310 toward the second surface portion 312a substantially along the third surface portions 311b and 312b on both sides of the frame main body 300, respectively. The two main body portions 321 are arranged near the third surface portions 311b and 312b on both sides inside the frame main body 10 in a separated state, and a space portion 325 is formed between the two main body portions 321. Yes.

  Each of these two main body portions 321 is adhesively bonded to the frame main body 10 via a foamable adhesive 315, and a corner portion 310a formed between the first surface portion 311a and the third surface portions 311b and 312b of the frame main body 310. And a base portion 321a that is adhesively bonded to the inner surface of the corner portion 310a, and extends from the base portion 321a to the second surface portion 312a side substantially along the third surface portions 311b and 312b, and the tips are the second surface portion 312a and the third surface portion 311b. , 312b, and a leg portion 321b that contacts and contacts the third surface portions 311b and 312b on the second surface portion 312a side.

  The main body portion 321 is also substantially inclined toward the third surface portions 311b and 312b with the side portion 321c on the inner side of the frame main body 310 of the leg portion 321b of the main body portion 321 being directed from the first surface portion 311a to the second surface portion 312a. The side portions 321c on the inner side of the frame main body 310 of the leg portions 321b of the two main body portions 321 are provided so as to be separated from the first surface portion 311a toward the second surface portion 312a. It is formed in a letter shape.

  On the other hand, the third surface portions 311b and 312b side of the main body portion 321 are provided with a recessed portion 321d that is recessed in a substantially central portion between the first surface portion 311a and the second surface portion 312a, and the main body portion 321 and the third surface portion 311b. 312b, specifically, a gap 322 is formed between the first plate-like member 311 and the side surface 311b.

  From this analysis, the shape of the resin body shown in FIG. 17 was obtained as the optimum shape by topology optimization. The following reasons are conceivable.

  FIG. 18 is a diagram for explaining the reason why the resin body shown in FIG. 17 has an optimum shape, and schematically shows the left side portion of the frame structure shown in FIG. As shown in FIG. 18, when a bending load F is applied from the outside, the load input to the first surface portion 311a is transmitted to the third surface portions 311b and 312b through the corner portion 310a of the frame body 310 as indicated by the arrow R1. However, when the main body portion 321 is adhesively bonded to the inner surface of the corner portion 310a via the foamable adhesive 315, it is transmitted to the resin body 320 as indicated by the arrow R2 to disperse the load. It is considered that the bending rigidity of the frame body 310 is effectively increased.

  Further, when a bending load F is applied to the frame main body 310 from the outside, the first surface portion 311a of the frame main body 310 is deformed inwardly of the frame main body 310 along the load input direction. The third surface portions 311b and 312b adjacent to the first surface portion 311a may bulge outward from the frame main body 310 and cause out-of-plane deformation. However, the first main surface portion 311a of the frame main body 310 may be deformed inward and deformed. The corner portions 310a of the frame body 310, which can be the starting points of the out-of-plane deformation of the third surface portions 311b and 312b, which are accompanied, are reinforced by the resin body 320, whereby the first surface portion 311a of the frame body 310 is deformed inwardly. It is considered that out-of-plane deformation of the third surface portions 311b and 312b caused by the deformation is suppressed, and the bending rigidity of the frame body 310 is effectively increased. That.

  Further, the two main body portions 321 provided with the leg portions 321b that are in contact with and in contact with the second surface portion 312a side of the third surface portions 311b and 312b are closer to the third surface portions 311b and 312b on both sides inside the frame main body 310. The resin body is provided by being disposed so that the side portion 321c of the leg portion 321b on the inner side of the frame body 310 is separated from the first surface portion 311a toward the second surface portion 312a. The load transmitted to 320 is transmitted to the second surface portion 312a side of the third surface portions 311b and 312b, and the second surface portion 312a is pulled toward the third surface portions 311b and 312b, so that the second surface portion 312a is inward of the frame body 310. It is considered that the bending rigidity of the frame main body 310 is increased by suppressing the displacement to the right.

  In addition, the resin body 320 is provided so that the side portions 321c on the inner side of the frame main body 310 of the leg portions 321b of the two main body portions 321 are separated from the first surface portion 311a toward the second surface portion 312a. Thus, it is considered that the space portion 325 which is a portion that does not contribute much to the improvement of the bending rigidity of the frame body 310 is thinned to reduce the weight.

  In addition, the main body 321 is provided with a recess 321d that is recessed in a substantially central portion between the first surface 311a and the second surface 312a on the third surface 311b, 312b side, and the main body 321 and the third surface 311b. , 312b, the gap 322 is formed, so that the gap 322, which does not contribute much to the improvement of the bending rigidity of the frame main body 310, is thinned to further reduce the weight. .

  In the above analysis, the main body 321 is in contact with and bonded to the second surface 312a side of the third surface portions 311b and 312b, but the second surface portion 312a of the third surface portions 311b and 312b is not bonded and bonded. Even when they are brought into contact with each other, the load transmitted to the main body portion 321 is transmitted to the second surface portion 312a side of the third surface portions 311b and 312b, and the second surface portion 312a of the frame main body 310 is transmitted to the third surface portion. It is considered that the bending rigidity of the frame main body 310 can be effectively increased by pulling toward 311b and 312b.

  Therefore, based on the analysis results, in the frame structure in which the resin body is built in the frame body, a base portion that is bonded and bonded to the corner portion between the first surface portion and the third surface portion of the frame body, and the base portion The resin body is formed so as to have two main body portions each having a leg portion extending substantially along the three surface portions to the second surface portion side and having a tip that matches and contacts the second surface portion side of the third surface portion. The two main body portions are disposed near the third surface portions on both sides inside the frame main body, and the side portions on the inner side of the frame main body of the leg portions of the two main body portions are directed from the first surface portion side to the second surface portion. Therefore, it is considered that the bending rigidity of the frame body can be improved while reducing the weight.

Hereinafter, a frame structure according to an embodiment of the present invention will be described.
FIG. 1 is a schematic perspective view showing a frame structure according to the first embodiment of the present invention, FIG. 2 is an enlarged view showing a main part of the frame structure shown in FIG. 1, and FIG. FIG. 3 is a cross-sectional view of the frame structure taken along line Y3-Y3 in FIG. In FIG. 1 and FIG. 2, in order to clearly show the resin body built in the frame body, the frame body is shown by a one-dot chain line, and this is shown in a transmissive state.

  As shown in FIGS. 1 to 3, a frame structure 1 according to the first embodiment of the present invention includes a tubular frame body 10 having a substantially rectangular cross section, and a frame body 10 for reinforcing the frame body 10. And a resin body 20 incorporated in the housing.

  The frame main body 10 includes a first plate member 11 and a second plate member 12 obtained by pressing a metal plate material such as a steel plate into a cross-sectional hat shape. The plate-like members 11 and 12 are respectively substantially formed from bottom surface portions 11a and 12a formed in a substantially planar shape, side surface portions 11b and 12b extending substantially vertically on both sides of the bottom surface portions 11a and 12a, and side surface portions 11b and 12b. Flange portions 11c and 12c extending outward in a right angle direction are provided, and the flange portion 11c and the flange portion 12c are overlapped and joined to form a substantially rectangular tube.

  The resin body 20 is obtained by molding a resin material by injection molding or the like, and is attached by being bonded and bonded to the inside of the frame body 10 by a foamable adhesive 5 (see FIG. 3) in order to reinforce the frame body 10. It has been. The resin body 20 extends from the bottom surface portion 11a of the first plate member 11 of the frame body 10 toward the bottom surface portion 12a of the second plate member 12 along the side surface portions 11b and 12b on both sides of the frame body 10 respectively. Two main body portions 21 extending in the direction are provided. In FIG. 2, only one main part of the two main body parts 21 is shown, but the other main body part 21 is similarly configured.

  The two main body portions 21 are disposed near the side surface portions 11 b and 12 b of the plate-like members 11 and 12 on both sides inside the frame main body 10 in a state of being separated from each other, and a space portion 25 is formed between the two main body portions 21. Is formed. Further, the two main body portions 21 are respectively formed according to the shape of the side surface portions 11b and 12b of the plate-like members 11 and 12, and are arranged along the side surface portions 11b and 12b. And plate-like ribs 23 extending in a substantially right-angle direction from the portion 22 and arranged in a lattice shape.

  As shown in FIG. 3, the ribs 23 arranged in a lattice shape are formed so as to extend from the vertical wall portion 22 to the inner side of the frame body 10 in a direction substantially orthogonal to the vertical wall portion 22. The rib 23 is formed to be shorter from the bottom surface portion 11 a side of the first plate member 11 toward the bottom surface portion 12 a of the second plate member 12, and the main body portion 21 is the bottom surface portion of the first plate member 11. It forms so that it may incline to the side part 11b, 12b side of the plate-shaped members 11 and 12 as it goes to the bottom face part 12a of the 2nd plate-shaped member 12 from 11a side. In addition, the lattice-shaped ribs 23 are formed with the openings 24 formed by the ribs 23 in a square shape. However, the openings 24 formed by the lattice-shaped ribs 23 are triangular, hexagonal, or octagonal. It is also possible to form in other shapes, such as.

  In the main body 21, the vertical wall portion 23 is adhesively bonded to the side surface portions 11b and 12b by the foamable adhesive 5, and the bottom surface portion 11a side of the first plate-like member 11 of the rib 23 extends along the bottom surface portion 11a. It is disposed and bonded to the bottom surface portion 11a by the foamable adhesive 5, and the bottom surface portion 12a side of the second plate member 12 of the rib 23 is disposed along the bottom surface portion 12a, and the foamable adhesive 5 is attached to the bottom surface portion 12a. Are bonded to each other by matching with the corner portions 10a and 10b of the frame body 10.

  In this way, the two main body portions 21 are formed from the base portion 21a and the base portion 21a, which match the corner portion 10a formed between the bottom surface portion 11a and the side surface portion 11b and are adhesively bonded to the inner surface of the corner portion 10a. A corner portion formed between the bottom surface portion 12a and the side surface portion 12b that extends to the bottom surface portion 12a side substantially along the side surface portion 11b and the side surface portion 12b, and whose tip includes the side surface portion 11b and the bottom surface portion 12a side of the side surface portion 12b. Leg portions 21b that match and come into contact with 10b, and are disposed near the side surface portions 11b and 12b on both sides inside the frame main body 10, and the frame main bodies 10 of the leg portions 21b of the two main body portions 21 are provided. The inward side portion 21c is provided so as to be separated from the bottom surface portion 11a toward the bottom surface portion 12a.

  In the frame structure 1 configured as described above, the bottom plate portion 11a of the first plate-like member 11 is disposed so as to face the direction in which a bending load is assumed to be input from the outside. Thereby, when a bending load is applied from the outside, a force in the compression direction acts on the bottom surface portion 11 a of the first plate member 11, and a force in the tensile direction acts on the bottom surface portion 12 a of the second plate member 12. Will be.

  In the present embodiment, the main body portion 21 is in contact with and bonded to the bottom surface portion 12a of the second plate-like member 12 of the side surface portions 11b and 12b, but the side surface portion 11b is not bonded and bonded. , 12b may be brought into contact with the bottom surface portion 12a side of the second plate-like member 12.

  Thus, in the frame structure 1 according to the first embodiment of the present invention, the resin body 20 includes the base portion 21a that matches the corner portion 10a and is adhesively bonded to the inner surface of the corner portion 10a, and the base portion 21a The first and second plate members 11 and 12 extend substantially along the side surface portions 11b and 12b of the second plate member 12 to the bottom surface portion 12a side, and the tips are aligned with the side surface portions 11b and 12b on the bottom surface portion 12a side. By having the two main body portions 21 provided with the leg portions 21b that come into contact with each other, a load input to the bottom surface portion 11a when a bending load is applied from the outside is applied to the side surface portions 11b and 12b through the corner portions 10a. When transmitted, it can be transmitted to the resin body 20 to disperse the load, so that the bending rigidity of the frame body 10 can be increased.

  In addition, when a bending load is applied from the outside, the frame body 10 is deformed inwardly of the bottom surface portion 11a of the first plate-shaped member 11 and the side surface portions 11b of the plate-shaped members 11 and 12 generated in accordance with the deformation. Since the corner portion 10a that can be the starting point of the out-of-plane deformation of 12b can be reinforced by the resin body 20, the inward deformation of the bottom surface portion 11a of the first plate-like member 11 and the second deformation caused by the deformation. Out-of-plane deformation of the side surface portions 11b and 12b of the first and second plate-like members 11 and 12 can be suppressed, and the bending rigidity of the frame body 10 can be increased.

  Further, the two main body portions 21 provided with the leg portions 21b that are brought into contact with the side surface portions 11b and 12b of the plate-like members 11 and 12 are in contact with the side surface portions 11b on both sides inside the frame main body 10. , 12b and the side portions 21c on the inner side of the frame main body 10 of the leg portions 21b of the two main body portions 21 from the bottom surface portion 11a side of the first plate-like member 11 to the second side. By being provided so as to move away from the bottom surface portion 12a of the plate-like member 12, the load transmitted to the resin body 20 is transmitted to the bottom surface portion 12a side of the side surface portions 11b and 12b, and the bottom surface portion 12a is moved to the side surface. Since it can be pulled to the parts 11b and 12b side, it can suppress that the bottom face part 12a displaces to the inward side of the frame main body 10, and can improve the bending rigidity of the frame main body 10.

  In addition, in the resin body 20, the side portion 21 c on the inner side of the frame main body 10 of the leg portions 21 b of the two main body portions 21 has the second plate-like member 12 from the bottom surface portion 11 a side of the first plate-like member 11. Since the space portion 25 that is a portion that does not contribute much to the improvement of the bending rigidity of the frame main body 10 can be thinned and weight reduction can be achieved. The bending rigidity of the frame body 10 can be improved while reducing the weight. Furthermore, the resin body 20 can be further reduced in weight by being provided with the lattice-like ribs 23.

  4 is a schematic perspective view showing a frame structure according to the second embodiment of the present invention, FIG. 5 is an enlarged view of a main part showing an enlarged main part of the frame structure shown in FIG. 4, and FIG. FIG. 5 is a cross-sectional view of the frame structure taken along line Y6-Y6 in FIG. 4 and 5, the frame body is indicated by a one-dot chain line, which is shown in a transmissive state. In the second embodiment, components having the same configuration as those of the first embodiment and having the same functions are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 4 to 6, in the frame structure 31 according to the second embodiment of the present invention, as in the frame structure 1, the resin body 40 is built in the frame body 10, and the resin body 40 has a corner portion. 10a and a base portion 41a that is adhesively bonded to the inner surface of the corner portion 10a by a foamable adhesive 35, and extends from the base portion 41a to the bottom surface portion 12a side of the second plate-like member 12 substantially along the side surface portions 11b and 12b. The two main body portions 41 are provided with leg portions 41b whose tips coincide with the bottom surface portion 12a side of the side surface portions 11b and 12b and are adhesively bonded by the foamable adhesive 35. In FIG. 5, only one main part of the two main body parts 41 is shown, but the other main body part 41 is similarly configured.

  The two main body portions 41 are disposed near the side surface portions 11 b and 12 b on both sides in a state of being separated from each other, and a space portion 25 is formed between the two main body portions 41. Further, the two main body portions 41 are respectively formed according to the shape of the side surface portions 11b and 12b of the plate-like members 11 and 12, and are arranged along the side surface portions 11b and 12b. And plate-like ribs 23 extending in a substantially right-angle direction from the portion 42 and arranged in a lattice shape.

  Also in the main body 41, the ribs 23 are formed shorter from the bottom surface 11a side of the first plate member 11 toward the bottom surface 12a of the second plate member 12, and the main body 41 is formed of the first plate. The plate-like members 11 are formed so as to incline toward the side portions 11b and 12b of the plate-like members 11 and 12 from the bottom-face portion 11a side of the second plate-like member 12 toward the bottom-face portion 12a of the second plate-like member 12. A side portion 41c of the leg portion 41b on the inner side of the frame body 10 is provided so as to be separated from the bottom surface portion 11a side of the first plate member 11 toward the bottom surface portion 12a of the second plate member 12. Yes.

  However, in the frame structure 31, the vertical wall portion 42 has an approximately central portion between the bottom surface portion 11 a of the first plate member 11 and the bottom surface portion 12 a of the second plate member 12 inward of the frame body 10. The main body portion 41 is formed between the bottom surface portion 11a of the first plate member 11 and the bottom surface portion 12a of the second plate member 12 on the side surface portions 11b and 12b side, respectively. A concave portion 42a that is recessed in a substantially central portion is provided, and between the main body portion 41 and the side surface portions 11b and 12b of the plate-like members 11 and 12, specifically, the side surface portion 11b of the first plate-like member 11 A gap portion 42b is formed in the upper portion.

  In the frame structure 31 as well, the main body 41 is in contact with and bonded to the bottom surface 12a of the second plate-like member 12 of the side surfaces 11b and 12b. It is also possible to make it contact | abut to the bottom face part 12a side of the 2nd plate-shaped member 12 of 11b, 12b.

  Also in the frame structure 31 configured as described above, the bottom plate portion 11a of the first plate-like member 11 is arranged to face the direction in which a bending load is assumed to be input from the outside. Thereby, like the frame structure 1, the bending rigidity of the frame main body 10 can be improved while reducing the weight.

  Further, in the frame structure 31, the main body portion 41 is provided at a substantially central portion between the bottom surface portion 11 a of the first plate member 11 and the bottom surface portion 12 a of the second plate member 12 on the side surface portions 11 b and 12 b side. A concave portion 42a that is recessed in a concave shape is provided, and a void portion 42b is formed between the main body portion 41 and the side surface portions 11b and 12b, so that the void portion that does not contribute much to the improvement of the bending rigidity of the frame main body 10. The portion 42b can be thinned to further reduce the weight, and the above effects can be more effectively achieved.

  7 is a schematic perspective view showing a frame structure according to the third embodiment of the present invention. FIG. 8 is a cross-sectional view taken along line Y8-Y8 of the frame structure shown in FIG. These are sectional drawings of the frame structure which followed the Y9-Y9 line in FIG. 7 and 8, the frame main body is indicated by a one-dot chain line, and this is shown in a transmissive state. In the third embodiment, components having the same configuration as those of the second embodiment and having the same functions are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIGS. 7 to 9, in the frame structure 51 according to the third embodiment of the present invention, the resin body 60 is built in the frame body 10, similarly to the frame structure 31. 10a and a base portion 61a that is adhesively bonded to the inner surface of the corner portion 10a by the foamable adhesive 35, and extends from the base portion 61a to the bottom surface portion 12a side of the second plate-like member 12 substantially along the side surface portions 11b and 12b. The front end has two main body portions 61 provided with leg portions 61b that match the bottom surface portion 12a side of the side surface portions 11b and 12b and are bonded and bonded by the foamable adhesive 35. Further, a connecting portion 67 that connects the two main body portions 61 is provided.

  In the frame structure 51, the resin body 60 is formed on the bottom wall portion 66, which is formed according to the shape of the bottom surface portion 11 a of the first plate-like member 11 and is disposed substantially along the bottom surface portion 11 a. A vertical wall portion 62 is provided that is coupled and formed according to the shape of the side surface portions 11b and 12b of the plate-like members 11 and 12, and is disposed substantially along the side surface portions 11b and 12b.

  The bottom wall portion 66 is adhesively bonded to the bottom surface portion 11a of the first plate-like member 11 with a foamable adhesive 35, and the side surface portions 11b on both sides in the direction perpendicular to the longitudinal direction of the frame body 10 and crossing the frame body 10; The central portion between the first plate 12b and the bottom portion 66a is recessed from the bottom surface portion 11a of the first plate-like member 11. It extends substantially along the bottom surface portion 11 a of the member 11.

  Further, the bottom wall portion 66 is provided with ribs 63 arranged in a lattice shape extending in a substantially right angle direction from the bottom wall portion 66, and the ribs 63 arranged in a lattice shape are substantially formed on the side surface portions 11b and 12b. A plurality of plate-like vertical ribs 63 a extending in parallel in the longitudinal direction of the frame main body 10 and a plurality of plate-like horizontal ribs 63 b extending in a direction crossing the frame main body 10 are provided.

  The plurality of vertical ribs 63a and the plurality of horizontal ribs 63b are provided in parallel, and the vertical ribs 63a and the horizontal ribs 63b are coupled to each other at a right angle. Thereby, the opening 64 opened in the direction from the bottom face part 11a of the first plate-like member 11 to the bottom face part 12a of the second plate-like member 12 is formed in a square shape by the vertical rib 63a and the horizontal rib 63b. Has been.

  Further, the plurality of vertical ribs 63a are formed short at the center between the side portions 11b, 12b on both sides in the direction crossing the frame main body 10, and the front ends thereof are the bottom portions of the first plate member 11 at the center. 11a and the bottom surface portion 12a of the second plate-like member 12 are formed so as to be positioned on the bottom surface portion 11a side of the first plate-like member 11 with respect to the intermediate position between the side portions 11b on both sides from the center portion. , 12b side is formed so as to extend toward the side surface parts 11b, 12b, and is formed so as to extend to the bottom surface part 12a of the second plate-like member 12 on the most side surface parts 11b, 12b side.

  The plurality of lateral ribs 63b are also formed short at the central portion between the side surface portions 11b and 12b on both sides in the direction crossing the frame main body 10, and the tip of the central rib is the bottom surface portion 11a of the first plate member 11. Is formed so as to be positioned closer to the bottom surface portion 11a side of the first plate-like member 11 than the intermediate position between the bottom surface portion 12a of the second plate-like member 12 and the side surface portions 11b on both sides from the center portion. On the 12b side, it is formed longer toward the side surface portions 11b, 12b, and is formed so as to extend to the bottom surface portion 12a of the second plate-like member 12 at the portion that is coupled to the vertical rib 63a on the most side surface portion 11b, 12b side. ing.

  The plurality of lateral ribs 63b further extend to the side surface portions 11b, 12b side than the longitudinal rib 63a on the most side surface portions 11b, 12b side and are coupled to the vertical wall portion 62, and the first side ribs on the side surface portions 11b, 12b side. A substantially central portion between the bottom surface portion 11a of the plate-like member 11 and the bottom surface portion 12a of the second plate-like member 12 is formed in a concave shape.

  The vertical wall portion 62 coupled to the horizontal rib 63b is formed by dividing a substantially central portion between the bottom surface portion 11a of the first plate member 11 and the bottom surface portion 12a of the second plate member 12, The bottom surface portion 11a side of the first plate-like member 11 is adhesively bonded to the side surface portion 11b of the first plate-like member 11 by the foamable adhesive 35, and the bottom surface portion 12a side of the second plate-like member 12 is the first plate. The side member 11 b of the shaped member 11 is adhesively bonded with a foamable adhesive 35.

  Thus, in the resin body 60, the space between the bottom surface portion 11 a of the first plate member 11 and the bottom surface portion 12 a of the second plate member 12 on the side surface portions 11 a, 12 a side of the plate members 11, 12. A concave portion 62a that is recessed in a substantially central portion is provided, and a gap portion 62b is provided between the side surface portions 11b and 12b of the plate-like members 11 and 12, specifically, the side surface portion 11b of the first plate-like member 11. Is formed.

  In the resin body 60, the bottom wall portion 66, the vertical wall portion 62, and the rib 63 are integrally formed, and the two main body portions 61 are side portions of the bottom surface portion 66 a that is recessed in the bottom wall portion 66. 11b, 12b side, the vertical wall part 62, and the side part 11b, 12b side from the center part between the side part 11b, 12b of the both sides in the rib 63, and the connection part 67 is concave shape in the bottom wall part 66 It is formed by a bottom surface portion 66 a that is recessed in the middle and a central portion between the side surface portions 11 b and 12 b on both sides of the rib 63.

  Thereby, as described above, the main body 61 is substantially along the corner portion 10a and the base portion 61a that is adhesively bonded to the inner surface of the corner portion 10a by the foamable adhesive 35, and from the base portion 61a to the side surface portions 11b and 12b. Leg portions 61b extending to the bottom surface portion 12a side of the second plate-like member 12 and having their tips aligned with the bottom surface portion 12a side of the side surface portions 11b and 12b and bonded to each other. The side portions 61c are disposed near the side portions 11b and 12b, respectively, and the side portions 61c on the inner side of the frame main body 10 of the leg portions 61b of the two main body portions 61 are separated from the bottom surface portion 11a toward the bottom surface portion 12a. In addition, a concave portion 62a that is recessed in a substantially central portion between the bottom surface portion 11a and the bottom surface portion 12a on the side surface portions 11b and 12b side is provided, and the main body portion 61 and the side surface portions 11b and 12b Void portion 62b is formed between.

  The connecting portion 67 connects the two main body portions 61 and is disposed on the bottom surface portion 11 a side of the first plate-like member 11 in a state of being separated from the bottom surface portion 11 a of the first plate-like member 11. . In addition, the connecting portion 67 has a space portion 65 formed between the two main body portions 61 provided in a separated state as a space portion 65 a on the bottom surface portion 11 side of the first plate member 11 and a second plate shape. The member 12 is divided into space portions 65b on the bottom surface portion 12a side.

  Also in the frame structure 51, the main body 61 is in contact with and bonded to the bottom surface 12a of the second plate-like member 12 of the side surfaces 11b and 12b. It is also possible to make it contact | abut to the bottom face part 12a side of the 2nd plate-shaped member 12 of 11b, 12b.

  Also in the frame structure 51 configured as described above, the bottom plate 11a of the first plate-like member 11 is arranged so as to face the direction in which a bending load is assumed to be input from the outside. Thereby, like the frame structure 31, the bending rigidity of the frame main body 10 can be improved while reducing the weight. Further, the gap 62b, which is a portion that does not contribute much to the improvement in the bending rigidity of the frame body 10, can be thinned to further reduce the weight, and the above-described effects can be more effectively achieved.

  Further, the resin body 60 further includes a connecting portion 67 that connects the two main body portions 61 and is integrally formed with the two main body portions 61, and the connecting portion 67 is a bottom surface portion of the first plate-like member 11. Since the first plate-like member 11 is disposed near the bottom surface portion 12a in a state of being separated from 11a, the two main body portions 61 are tilted to the inner side of the frame main body 10 when a bending load is applied from the outside. This can be suppressed, and the bending rigidity of the frame body 10 can be further improved. Further, the resin body 60 can be easily molded and attached to the frame body 10 by integrally molding the two main body portions 61 and the connecting portion 67. Efficiency can be improved.

  FIG. 10 is a cross-sectional view showing a frame structure according to the fourth embodiment of the present invention. The fourth embodiment is different from the second embodiment in the shape of the frame body, and has the same configuration as that of the second embodiment. The description is omitted.

  As shown in FIG. 10, the frame structure 71 according to the fourth embodiment of the present invention has the resin body 40 built in the frame main body 70 as in the frame structure 31 according to the second embodiment. The frame main body 70 includes a first plate-like member 71 formed in a hat shape in cross section and a second plate-like member 72 formed in a substantially flat shape.

  The first plate-like member 71 includes a bottom surface portion 71a formed in a substantially planar shape, a side surface portion 71b extending in a substantially vertical direction on both sides of the bottom surface portion 71a, and a flange portion extending outward in a substantially right angle direction from the side surface portion 71b. 71c, the second plate member 72 includes a flat portion 72a formed in a substantially flat shape, and the flange portion 71c of the first plate member 71 is replaced with the flat portion 12a of the second plate member 12. By abutting and joining, the frame body 70 is formed in a tubular shape having a rectangular cross section.

  Also in the frame structure 71, the two main body portions 41 of the resin body 40 are formed on both sides formed between the bottom surface portion 71 a of the first plate member 71 and the side surface portion 71 b of the first plate member 71. A base portion 41a that matches the corner portion 70a and is adhesively bonded to the inner surface of the corner portion 70a, and extends from the base portion 41a to the flat surface portion 72a side of the second plate-like member 12 substantially along the side surface portion 71b. The two main body portions 41 are provided near the side surface portions 71b on both sides inside the frame main body 70, respectively. The side portions 41c on the inner side of the frame main body 70 of the leg portions 41b of the two main body portions 41 are provided so as to be separated from the bottom surface portion 71a toward the flat surface portion 72a.

  Also in the frame structure 71, the main body 41 is in contact with and bonded to the flat surface 72a side of the second plate-like member 72 of the side surface 71b, but the side surface 71b is not bonded and bonded. It is also possible to make the second plate member 72 abut on the flat surface portion 72a side.

  Also in the frame structure 71 configured as described above, the bottom plate portion 71a of the first plate-like member 71 is disposed so as to face the direction in which a bending load is assumed to be input from the outside. Thereby, like the frame structure 31, the bending rigidity of the frame main body 70 can be improved while reducing the weight.

  FIG. 11 is a sectional view showing a frame structure according to the fifth embodiment of the present invention. The fifth embodiment is different from the second embodiment in the shape of the frame main body. The fifth embodiment has the same configuration as the second embodiment, and the same reference numerals are given to those having the same function. The description is omitted.

  As shown in FIG. 11, the frame structure 91 according to the fifth embodiment of the present invention has the resin body 40 built in the frame main body 90 as in the frame structure 31 according to the second embodiment. The frame main body 90 includes a first plate-like member 91 formed in a substantially flat shape and a second plate-like member 92 formed in a cross-sectional hat shape.

  The first plate-shaped member 91 includes a flat surface portion 91a formed in a substantially flat shape, and the second plate-shaped member 92 includes a bottom surface portion 92a formed in a substantially flat shape and substantially on both sides of the bottom surface portion 92a. A side surface portion 92 b extending in the vertical direction and a flange portion 92 c extending outward from the side surface portion 92 b in a substantially right angle direction are provided, and the flange portion 92 c of the second plate-shaped member 92 is a flat surface portion 91 a of the first plate-shaped member 91. The frame main body 90 is formed in a tubular shape having a rectangular cross section.

  Also in the frame structure 91, the two main body portions 41 of the resin body 40 are formed on both sides formed between the flat surface portion 91a of the first plate member 91 and the side surface portion 92b of the second plate member 92, respectively. A base portion 41a that matches the corner portion 90a and is adhesively bonded to the inner surface of the corner portion 90a, and extends from the base portion 41a to the bottom surface portion 92a side of the second plate-like member 92 substantially along the side surface portion 91b. The two main body portions 41 have leg portions 41b that are bonded and bonded to the bottom surface portion 92a side, and the two main body portions 41 are arranged near the side surface portions 91b on both sides inside the frame main body 90, respectively. The side portions 41c on the inner side of the frame main body 90 of the leg portions 41b of the two main body portions 41 are provided so as to be separated from the flat surface portion 91a toward the bottom surface portion 92a.

  In the frame structure 91 as well, the main body 41 is in contact with and bonded to the bottom surface 92a of the second plate member 92 of the side surface 92b, but the side surface 92b is not bonded and bonded. It is also possible to abut on the bottom surface portion 92a side.

  Also in the frame structure 91 configured as described above, the flat plate portion 91a of the first plate-like member 91 is disposed so as to face the direction in which a bending load is assumed to be input from the outside. Thereby, similarly to the frame structure 31, the bending rigidity of the frame main body 90 can be improved while reducing the weight.

  In the first to third embodiments, the bottom surface portion 11a of the first plate member 11, the bottom surface portion 12a of the second plate member 12, and the side surface portion 11b of the first plate member 11 are used. And the side surface portion 12b of the second plate member 12 correspond to the first surface portion, the second surface portion, and the third surface portion described in the claims of the present application, respectively, and in the fourth embodiment, the first plate member 71 is provided. The bottom surface portion 71a, the flat surface portion 72a of the second plate member 72, and the side surface portion 71b of the first plate member 71 correspond to the first surface portion, the second surface portion, and the third surface portion described in the claims of the present application, respectively. In the fifth embodiment, the flat surface portion 91a of the first plate-shaped member 91, the bottom surface portion 92a of the second plate-shaped member 92, and the side surface portion 92b of the second plate-shaped member 92 are respectively included in the claims of this application. It corresponds to the described first surface portion, second surface portion, and third surface portion.

  The present invention is not limited to the illustrated embodiments, and it goes without saying that various improvements and design changes are possible without departing from the spirit of the present invention. For example, the frame body resin according to the first embodiment is incorporated in the frame body of the frame structure according to the fourth or fifth embodiment, or the frame structure resin according to the third embodiment. It is also possible to incorporate the body.

  INDUSTRIAL APPLICABILITY The present invention can provide a frame structure in which a resin body is incorporated in a tubular metal frame main body and the bending rigidity of the frame main body can be improved while reducing the weight, such as a side pillar or a side sill. There is a possibility of being widely used in a vehicle frame that constitutes a part of the vehicle body.

1, 31, 51, 71, 91, 300 Frame structure 10, 70, 90, 200, 310 Frame body 10a, 10b, 70a, 90a, 200d, 200e Corner portion 11a, 71a, 91a First surface portion 11b, 12b, 71b 92a Third surface portion 12a, 72a, 92a Second surface portion 20, 40, 60 Resin body 21, 41, 61 Main body portion 21a, 41a, 61a Base portion 21b, 41b, 61b Leg portion 21c, 41c, 61c Side portion 42a, 62a , Concave portions 42b, 62b gap portions 67 connecting portions

Claims (4)

A frame structure in which a resin body for reinforcing the frame body is built in the tubular metal frame body,
The frame body includes a first surface portion on which a force in the compression direction acts when a bending load is applied from the outside, a second surface portion on which a force in the tensile direction acts, and a first surface portion and a second surface portion of the frame body. It is formed between the first surface portion and the second surface portion and the third surface portions on both sides forming corners between the first surface portion and the second surface portion, and is formed in a substantially rectangular cross section.
The resin body includes a base portion that is matched to a corner portion formed between the first surface portion and the third surface portion of the frame body and is adhesively bonded to the inner surface of the corner portion, and the base portion to the third surface portion. And extending to the second surface portion side, and having two main body portions each having a leg portion that is in contact with and in contact with the second surface portion side of the third surface portion. The two sides of the two main body parts are disposed near the third surface parts on both sides of the frame body, and the side parts on the inner side of the frame main body are separated from the first surface part side toward the second surface part. It provided so as to be,
The frame main body is formed in a hat shape in cross section having a bottom surface portion, side surface portions on both sides extending in a substantially vertical direction from the bottom surface portion, and flange portions on both sides extending outward from the side surface portions on both sides. A plate-like member and a second plate-like member are formed, and the flange portion of the first plate-like member and the flange portion of the second plate-like member are overlapped and joined to each other to form a substantially rectangular cross section. And
The first surface portion is a bottom surface portion of the first plate member, the second surface portion is a bottom surface portion of the second plate member, and the third surface portion is a side surface of the first plate member. Part and a side part of the second plate-like member,
The leg portions of the two main body portions are in contact with the side surface portions on both sides of the second plate-shaped member, respectively.
A frame structure with a built-in resin body. The main body portion is provided with a concave portion that is recessed in a substantially central portion between the first surface portion and the second surface portion on the third surface portion side, and a void portion is formed between the main body portion and the third surface portion. Being
A frame structure incorporating the resin body according to claim 1. The resin body further includes a connecting portion that connects the two main body portions and is integrally formed with the two main body portions, and the connecting portion is spaced apart from the first surface portion of the frame main body. Disposed near the first surface of the frame body,
A frame structure incorporating the resin body according to claim 1 or 2. The two main body portions are formed separately from each other,
A frame structure incorporating the resin body according to claim 1 or 2.