Front structure of the vehicle
The vehicle front structure uses reinforcing ribs and bead shapes in a fiber-reinforced resin main body to address weight and rigidity challenges, ensuring effective load distribution and reduced bending, thus enhancing the performance of pop-up hood devices.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- TOYODA GOSEI CO LTD
- Filing Date
- 2024-10-30
- Publication Date
- 2026-05-15
AI Technical Summary
Existing vehicle front structures, including radiator supports and pop-up hood devices, face the challenge of maintaining rigidity and strength while reducing weight, particularly when using resin materials that are prone to bending under load.
A front structure design featuring a resin main body with reinforcing ribs and bead shapes, integrated with fiber-reinforced resin, to enhance rigidity and strength, and distribute loads effectively through side walls and protruding portions.
The design achieves reduced weight while maintaining necessary rigidity and strength, ensuring effective operation of pop-up hood devices by minimizing bending and enhancing load distribution.
Smart Images
Figure 2026079464000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a front structure of a vehicle.
Background Art
[0002] Patent Document 1 describes a radiator support to which a pop-up hood device for lifting the front end portion of the hood of a vehicle is fixed when colliding with a collision object such as a pedestrian. The radiator support includes a pair of radiator support sides, a radiator support upper, and a radiator support lower. The pair of radiator support sides constitute both end portions in the vehicle width direction. The radiator support upper is bridged along the vehicle width direction at the upper end portions of the pair of radiator support sides to constitute the upper end portion of the radiator support. The radiator support lower is bridged along the vehicle width direction at the lower end portions of the pair of radiator support sides to constitute the lower end portion of the radiator support.
[0003] The pop-up hood device has a pair of actuators that operate when colliding with a collision object and a pair of brackets. Each actuator is fixed in the vicinity of each of the pair of radiator support sides via a bracket.
[0004] Conventionally, such a radiator support is formed of a metal material, so that rigidity and strength capable of withstanding the load acting on the radiator support when the actuator operates are ensured.
Prior Art Documents
Patent Documents
[0005]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0006] Incidentally, in such radiator supports, it is desirable to reduce weight while maintaining the rigidity and strength necessary to withstand the aforementioned loads. It should be noted that this challenge is not limited to radiator supports for supporting the radiator; it can similarly occur in any front structure comprising a main body that constitutes part of the vehicle body at the front of the vehicle, and a pop-up hood device fixed to the main body. [Means for solving the problem]
[0007] The following describes various aspects of the front structure of a vehicle that address the above-mentioned problems. [Aspect 1] A front structure of a vehicle comprising a resin main body that constitutes part of the vehicle body at the front of the vehicle, an actuator that lifts the front of the vehicle's hood when operated, and a bracket for fixing the actuator to the main body, wherein when the front-rear direction of the vehicle is simply the front-rear direction, the main body has a pair of side wall portions that extend in the front-rear direction and are spaced apart from each other, and a bottom wall portion that connects the ends of the pair of side wall portions in the front-rear direction, the bottom wall portion is provided with fastening holes through which the bracket is fastened from one side in the front-rear direction via fastening members, and reinforcing ribs that protrude toward the other side in the front-rear direction and form a surrounding portion that surrounds the fastening holes together with the side wall portions,
[0008] According to the above configuration, the bracket is fastened to the main body from one side in the front-to-back direction by fastening the bracket to the fastening hole in the main body via the fastening member. As a result, the actuator of the pop-up hood device is fixed to the main body.
[0009] Furthermore, according to the above configuration, the main body is made of resin. Therefore, compared to conventional front structures that have a metal main body, the weight of the main body, and consequently the front structure, can be reduced. In this case, if the main body is simply formed from a resin material, the main body will be more prone to bending due to the load acting on it through the fastening holes when the actuator is operating, compared to a conventional front structure. As a result, the hood may not be lifted sufficiently by the actuator. In this regard, with the above configuration, a surrounding portion is formed by the side wall and reinforcing ribs that surround the fastening holes. Therefore, the portion of the main body where the fastening holes are provided is reinforced by the cooperation of the side wall and reinforcing ribs. As a result, even when the above load is applied to the main body, it becomes less prone to bending.
[0010] Therefore, it is possible to reduce the weight of the main body while maintaining the rigidity and strength necessary to withstand the load applied by the actuator of the pop-up hood device. [Aspect 2] The bottom wall portion is provided with a protruding portion that projects toward the other side in the front-rear direction and extends along a pair of side wall portions, and a groove portion formed on the opposite side of the protruding portion in the front-rear direction and opening to one side in the front-rear direction, and the surrounding portion is formed by the side wall portion, the reinforcing rib and the protruding portion, the front structure of the vehicle according to [Aspect 1].
[0011] According to the above configuration, a bead shape is formed on the bottom wall by the protruding portion and the groove portion. As a result, the bottom wall and, consequently, the main body are reinforced by this bead shape. Furthermore, with the above configuration, the parts of the main body where fastening holes are provided are reinforced in cooperation with the bead shape in addition to the side walls and reinforcing ribs. Therefore, compared to the case where the surrounding portion is formed only by the side walls and reinforcing ribs, the main body will be less prone to bending even when the above load is applied to it. Consequently, the rigidity and strength of the main body can be further increased.
[0012] [Aspect 3] The front structure of the vehicle according to [Aspect 1] or [Aspect 2], wherein the main body is made of a fiber-reinforced resin material. According to the above configuration, when the main body is integrally molded by injection molding, the skin layer on the molded surface side, which is formed by the molten resin filling the cavity before the central part (core layer), tends to have the fiber orientation aligned with the flow direction of the molten resin. Since fiber-reinforced resin has increased strength in the direction in which the fiber orientation is aligned, the strength of the main body can be increased by the above skin layer.
[0013] [Aspect 4] When the width direction of the vehicle is defined as the vehicle width direction, the surrounding portion includes a portion extending in the vehicle width direction, and this portion is composed of either the reinforcing rib or the side wall portion, the front structure of a vehicle according to any one of [Aspect 1] to [Aspect 3].
[0014] When the actuator is activated, a load is applied to the main body through the fastening holes, directed downward in the vertical direction of the vehicle. In this regard, with the above configuration, the portion of the surrounding area composed of either the reinforcing ribs or the side walls extends in the direction of the vehicle width, i.e., in a direction that intersects the vertical direction. As a result, the load is suitably distributed by the reinforcing ribs or the side walls. This makes the main body less prone to bending even when the load is applied to it. Therefore, the rigidity and strength of the main body can be further increased. [Effects of the Invention]
[0015] According to the present invention, it is possible to reduce the weight of the main body while maintaining the rigidity and strength necessary to withstand the load applied from the actuator of the pop-up hood device. [Brief explanation of the drawing]
[0016] [Figure 1] Figure 1 is a partial cross-sectional view showing the front of a vehicle equipped with a front structure according to one embodiment of the vehicle. [Figure 2] Figure 2 is a rear view partially showing the front structure of Figure 1. [Figure 3] Figure 3 is a cross-sectional view along line 3-3 in Figure 2. [Figure 4]FIG. 4 is a front view showing an enlarged view of the front structure of FIG. 2 centered on the location where the actuator is attached. [Figure 5] FIG. 5 is a cross-sectional view taken along line 5-5 of FIG. 4.
Embodiments for Carrying out the Invention
[0017] Hereinafter, an embodiment of the front structure of a vehicle will be described with reference to FIGS. 1 to 5. Hereinafter, the front-rear direction of the vehicle will be referred to as the front-rear direction, and the “front side” and “rear side” in the front-rear direction will be simply described as the “front side” and “rear side”. In the present embodiment, the “rear side” corresponds to the “one side in the front-rear direction” described in the [Means for Solving the Problem] column, and the “front side” corresponds to the “other side in the front-rear direction” described in the [Means for Solving the Problem] column. Also, the width direction of the vehicle will be described as the vehicle width direction. Further, when the vehicle is located on a horizontal plane, the up-down direction of the vehicle will be referred to as the up-down direction, and the “upper side” and “lower side” in the up-down direction will be simply described as the “upper side” and “lower side”.
[0018] <Basic Configuration of the Front Part of the Vehicle> As shown in FIG. 1, a hood 12 and a front structure 13 are provided in the front part 11 of the vehicle 10. The hood 12 covers the engine room ER from above. Both end portions in the vehicle width direction of the rear end portion of the hood 12 are connected to the vehicle body 10A via a pair of hood hinges (not shown). The hood 12 is supported so as to be rotatable about an axis extending in the vehicle width direction by a pair of hood hinges. Also, the hood 12 is configured to be lockable by a hood lock device (not shown) at a position (hereinafter, the closed position) where it closes the engine room ER shown in FIG. 1.
[0019] The front structure 13 is disposed below the front end portion of the hood 12. The front structure 13 includes a pop-up hood device 20 and a main body portion 30 to which the pop-up hood device 20 is attached. Hereinafter, each configuration will be described in detail.
[0020] <Pop-up Hood Device> As shown in Figures 1 and 2, the pop-up hood device 20 has an actuator 21 for lifting the hood 12 and a bracket 24 for fixing the actuator 21 to the main body 30. In Figure 1, for the sake of explanation, only the actuator 21 of the pop-up hood device 20 is shown in a simplified manner, and the bracket 24 is not shown.
[0021] The actuator 21 is a vertically elongated cylindrical shape and has a piston section 22 and a cylinder section 23. Inside the piston section 22 is a gas generator (neither of which is shown) that is electrically connected to the ECU via a wire harness. A sensor that detects or predicts when a pedestrian or the like collides with the vehicle 10 is electrically connected to the ECU. The ECU makes a decision on whether or not to activate the gas generator of the actuator 21 based on the signal input from the sensor. The cylinder section 23 is cylindrical in shape. The piston section 22 is inserted inside the cylinder section 23. When the gas generator is activated by the control of the ECU, the cylinder section 23 is configured to move relative to the piston section 22 upward due to the pressure of the gas supplied into the piston section 22. The actuator 21 is configured to raise the front end of the hood 12 from the closed position to the raised position shown by the dashed line in Figure 1 by raising the cylinder section 23 while it is in contact with the hood 12.
[0022] Here, the side closer to the center of the vehicle 10 in the vehicle width direction is defined as the inside, and the side further away from the center of the vehicle 10 in the vehicle width direction is defined as the outside. As shown in Figure 2, the bracket 24 is formed by sheet metal processing of a metal plate. The bracket 24 has a base portion 25 and a first fixing portion 26 and a second fixing portion 27 that extend from the base portion 25 toward both sides in the vehicle width direction. The base portion 25 covers the lower end of the piston portion 22 from the rear side. The piston portion 22 is joined to the inner surface of the base portion 25 by welding or any other method. The first fixing portion 26 is the portion that extends inward from the base portion 25. The second fixing portion 27 is the portion that extends outward from the base portion 25.
[0023] As shown in Figures 2 and 5, each of the first fixing portion 26 and the second fixing portion 27 has a fastening hole 28 through which a bolt 51, which serves as a fastening member, is inserted. In this embodiment, one fastening hole 28 is formed in the first fixing portion 26 and two fastening holes 28 are formed in the second fixing portion 27.
[0024] <Main body> As shown in Figure 1, the main body portion 30 constitutes a part of the vehicle body 10A at the front portion 11 of the vehicle 10. The main body portion 30 is made of resin and is integrally molded, for example, by injection molding. Examples of resin materials used to form the main body portion 30 include glass fiber reinforced resin, which is obtained by mixing glass fibers with polypropylene resin. In this embodiment, the main body portion 30 passes through the center of the main body portion 30 in the vehicle width direction and has a shape that is symmetrical with respect to a virtual plane V (see Figure 2) that is perpendicular to the vehicle width direction. Therefore, in the following, the description of the right portion of the main body portion 30 in the vehicle width direction may be described, and the description of the left portion may be omitted.
[0025] As shown in Figure 2, the main body 30 has a pair of side portions 31, an upper portion 32, and a pair of stay portions 33. The pair of side portions 31 are spaced apart from each other in the vehicle width direction and extend in the vertical direction. The upper portion 32 extends in the vehicle width direction and connects the upper ends of the pair of side portions 31. The pair of stay portions 33 extend inward from the lower ends of the pair of side portions 31 and are connected to the upper portion 32. A hood lock device (not shown) is attached to the center of the upper portion 32 in the vehicle width direction. Each of the pair of stay portions 33 is inclined upward as it moves inward. The pair of stay portions 33 as a whole form an arch portion 34 that extends in a curved shape so that the central part in the vehicle width direction protrudes upward. The upper edge 34a of the arch portion 34 is connected to the lower edge 32a of the upper portion 32 at the center of the upper portion 32 in the vehicle width direction. The lower edge 34b of the arch portion 34 forms part of the outer peripheral edge 30a of the main body portion 30.
[0026] As shown in Figure 3, the main body 30 has a pair of side walls 41 and a bottom wall 42. The pair of side walls 41 extend in the front-rear direction and are spaced apart from each other. The bottom wall 42 connects the rear ends of the pair of side walls 41. The bottom wall 42 is provided with a protruding ridge 43 that projects forward. In addition, on the side of the bottom wall 42 opposite the protruding ridge 43 in the front-rear direction, there is a groove 44 that opens to the rear. The protruding ridge 43 and the groove 44 constitute the bead shape 45.
[0027] As shown in Figure 2, the bead shape 45 extends along a pair of side wall portions 41 in each part of the main body portion 30. The bead shape 45 is provided throughout each part of the main body portion 30. In this embodiment, the bead shape 45 is provided continuously throughout the entire main body portion 30.
[0028] As shown in Figures 4 and 5, actuators 21 are fixed via brackets 24 to each of the connection points (hereinafter referred to as connection points 35) where a pair of side portions 31 of the main body portion 30 and the upper portion 32 are connected. In this embodiment, one actuator 21 is fixed to each of the pair of connection points 35. The bottom wall portion 42 of the connection point 35 is provided with a plurality of fastening holes 46 through which bolts 51 are inserted, and a plurality of reinforcing ribs 47. In this embodiment, there are three fastening holes 46, corresponding to the number of fastening holes 28. A blind nut 52 is attached to each fastening hole 46 as a fastening member. With the bracket 24 superimposed on the rear side of the connection point 35, the bolts 51 are inserted into the fastening holes 28 and the tips of the bolts 51 are screwed into the blind nuts 52, thereby fastening the actuator 21 to the main body portion 30 from the rear side via the bracket 24.
[0029] As shown in Figures 3 and 4, the multiple reinforcing ribs 47 protrude forward from the bottom wall portion 42. The multiple reinforcing ribs 47 include longitudinal ribs 47a that extend vertically and connect the side wall portion 41 and the protruding portion 43, and transverse ribs 47b that extend in the vehicle width direction and connect the side wall portion 41 and the protruding portion 43.
[0030] As shown in Figure 4, the main body 30 is provided with a plurality of surrounding portions 48 that surround each of the plurality of fastening holes 46. The plurality of surrounding portions 48 include a first surrounding portion 48a that surrounds the fastening hole 46 into which the first fixing portion 26 is fastened, and a pair of second surrounding portions 48b that surround the pair of fastening holes 46 into which the second fixing portion 27 is fastened. The surrounding portion 48 is formed in a rectangular tubular shape with four sides extending in a substantially straight line by a pair of reinforcing ribs 47, a side wall portion 41, and a protruding portion 43, and surrounds the fastening hole 46 over its entire circumference. Specifically, the first surrounding portion 48a is composed of a portion of the side wall portion 41 that extends in the vehicle width direction, a portion of the protruding portion 43 that extends in the vehicle width direction, and a pair of vertical ribs 47a that connect the two portions. Furthermore, each pair of second surrounding portions 48b is composed of a portion of the side wall portion 41 that extends in the vertical direction, a portion of the protruding portion 43 that extends in the vertical direction, and a pair of transverse ribs 47b that connect the two portions. In this embodiment, adjacent second surrounding portions 48b share a transverse rib 47b sandwiched between a pair of fastening holes 46 in the vertical direction.
[0031] As shown in Figure 3, the connecting portion 36, which is the point where the pair of side portions 31 of the main body portion 30 and the arch portion 34 are connected, has fastening holes 49 formed in each for fastening to a front side member (not shown) that constitutes part of the vehicle body 10A via fastening members.
[0032] <Operation of this embodiment> The bracket 24 is fastened to the main body 30 from the rear by fastening it to the fastening hole 46 of the main body 30 via bolts 51 and blind nuts 52, which serve as fastening members. As a result, the actuator 21 of the pop-up hood device 20 is fixed to the connecting portion 35 of the main body 30.
[0033] Furthermore, according to the configuration of the front structure 13 of this embodiment, the main body 30 is integrally molded from a resin material. Therefore, compared to conventional front structures having a metal main body 30, the weight of the main body 30, and consequently the front structure 13, can be reduced.
[0034] In this case, if the main body 30 is simply formed from a resin material, the main body 30 will be more prone to bending due to the load acting on it through the fastening holes 46 when the actuator 21 is operated, compared to a conventional front structure. As a result, the lifting of the hood 12 by the actuator 21 may be insufficient. In this regard, according to the configuration of the front structure 13 of this embodiment, surrounding portions 48a and 48b are formed by the side wall portion 41, a pair of reinforcing ribs 47 and protruding portions 43, surrounding each of the multiple fastening holes 46. Therefore, the connecting portion 35 of the main body 30, where the fastening holes 46 are formed, is reinforced by the cooperation of the side wall portion 41, the pair of reinforcing ribs 47 and protruding portions 43. As a result, even when the above load is applied to the main body 30, the main body 30 will be less prone to bending.
[0035] <Effects of this embodiment> (1) The bottom wall portion 42 of the main body portion 30 is provided with a plurality of fastening holes 46 and a plurality of reinforcing ribs 47. The fixing portions 26 and 27 of the bracket 24 are fastened from the rear side to the plurality of fastening holes 46 via bolts 51 and blind nuts 52 as fastening members. The plurality of reinforcing ribs 47 protrude toward the front and, together with the side wall portion 41, form a surrounding portion 48 that surrounds each of the plurality of fastening holes 46.
[0036] This configuration provides the effects described above. Therefore, it is possible to reduce the weight of the main body 30 while maintaining the rigidity and strength to withstand the load applied from the actuator 21 of the pop-up hood device 20.
[0037] (2) The bottom wall portion 42 is provided with a protruding portion 43 and a groove portion 44. Each of the multiple surrounding portions 48 is formed by a side wall portion 41, a pair of reinforcing ribs 47 and a protruding portion 43. With this configuration, a bead shape 45 is formed on the bottom wall portion 42 by the protruding portion 43 and the groove portion 44. As a result, the bottom wall portion 42, and consequently the main body portion 30, is reinforced by the bead shape 45.
[0038] Furthermore, with the above configuration, the connecting portion 35, which is the part of the main body 30 where multiple fastening holes 46 are provided, is reinforced in cooperation with the bead shape 45 in addition to the side wall portion 41 and the pair of reinforcing ribs 47. As a result, compared to the case where the surrounding portion 48 is formed only by the side wall portion 41 and the reinforcing ribs 47, the main body 30 will be less prone to bending even when the above load is applied to it. Therefore, the rigidity and strength of the main body 30 can be further increased.
[0039] (3) The main body portion 30 is integrally molded by injection molding. The main body portion 30 is made of fiber-reinforced resin material. With this configuration, in the skin layer on the molded surface side, which is formed by the molten resin filling the cavity before the central part (core layer), the orientation of the fibers tends to align with the flow direction of the molten resin. Since fiber-reinforced resin has increased strength in the direction in which the fiber orientation is aligned, the strength of the main body 30 can be increased by the skin layer.
[0040] Furthermore, with the above configuration, the protruding portion 43 increases the surface area of the main body portion 30. This increases the area of the skin layer. Therefore, the rigidity and strength of the main body portion 30 can be further enhanced.
[0041] (4) The first surrounding portion 48a includes a portion that extends in the vehicle width direction. This portion is composed of a side wall portion 41 and a protruding portion 43. The second surrounding portion 48b also includes a portion that extends in the vehicle width direction. This portion is composed of a pair of transverse ribs 47b.
[0042] When the actuator 21 is activated, a load is applied to the main body 30 through each fastening hole 46, directed downward in the vertical direction. In this regard, according to the above configuration, the portion of the first surrounding portion 48a composed of the side wall portion 41 and the protruding portion 43 extends in the direction of the vehicle width, i.e., in a direction that intersects with the vertical direction. Therefore, the load is suitably distributed by the side wall portion 41 and the protruding portion 43. On the other hand, the portion of the second surrounding portion 48b composed of a pair of transverse ribs 47b extends in the direction of the vehicle width, i.e., in a direction that intersects with the vertical direction. Therefore, the load is suitably distributed by the pair of transverse ribs 47b. As a result of the above, even when the above load is applied to the main body 30, the main body 30 becomes even less prone to bending. Therefore, the rigidity and strength of the main body 30 can be further increased.
[0043] <Example of changes> The above embodiment can be implemented with the following modifications. The above embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.
[0044] The number of fastening holes 46 formed in each connecting portion 35 of the main body 30 is not limited to the three exemplified in this embodiment, but may be four or more. In this case, the number of fastening holes 28 formed in each fixing portion 26, 27 of the bracket 24 may also be changed to match the number of fastening holes 46. In addition, in accordance with the above change, a surrounding portion 48 may be newly provided to surround the newly formed fastening holes 46.
[0045] The shape of the second surrounding portion 48b is not limited to the rectangular tubular shape exemplified in this embodiment. In this case, the transverse rib 47b is not limited to extending linearly in the vehicle width direction, but may, for example, extend in a curve relative to the vehicle width direction.
[0046] The shape of the first surrounding portion 48a is not limited to the rectangular tubular shape exemplified in this embodiment. In this case, the vertical ribs 47a are not limited to those that extend linearly in the vertical direction, but may, for example, extend in a curved manner relative to the vertical direction.
[0047] By omitting either the longitudinal rib 47a or the transverse rib 47b, either the first surrounding portion 48a or the second surrounding portion 48b may be omitted. The surrounding portion 48 does not have to surround the fastening hole 46 over its entire circumference, as illustrated in this embodiment. For example, one of the pair of reinforcing ribs 47 may be omitted from the surrounding portion 48, so that it partially surrounds the fastening hole 46 in the circumferential direction. Even in this case, it is sufficient that a part of the surrounding portion 48 is adjacent to the fastening hole 46 in any three of the four directions: above, below, inside, and outside of the fastening hole 46.
[0048] The resin material used to form the main body 30 is not limited to the glass fiber-reinforced polypropylene resin exemplified in this embodiment; it may also be formed using only a thermoplastic resin such as polypropylene resin.
[0049] The bead shape 45 is not limited to being provided continuously across the entire body portion 30, as illustrated in this embodiment. For example, multiple bead shapes 45 may be arranged across the entire body portion 30 with spaces between them. Furthermore, the body portion 30 may be such that parts of the bead shape 45 other than those constituting the surrounding portion 48 are omitted.
[0050] The groove 44 may be omitted from the bottom wall 42. That is, the surface of the bottom wall 42 opposite to the protruding portion 43 in the front-rear direction may be made a smooth surface. The main body portion 30 does not have to have a bead shape 45. That is, both the protruding portion 43 and the groove portion 44 may be omitted from the bottom wall portion 42. In this case, in addition to the reinforcing ribs 47 that form the surrounding portion 48, ribs for reinforcing the main body portion 30 may be appropriately provided at each part of the main body portion 30. Also, in this case, the surrounding portion 48 is not limited to being formed by the side wall portion 41, the reinforcing ribs 47 and the protruding portion 43, and a new reinforcing rib 47 may be provided in place of the protruding portion 43. That is, the surrounding portion 48 may be composed only of the side wall portion 41 and the reinforcing rib 47.
[0051] The front structure 13 is not limited to having the actuator 21 fixed to the main body 30 from the rear. The actuator 21 may be fixed to the main body 30 from the front. Accordingly, the bottom wall 42 is not limited to connecting the rear ends of a pair of side wall sections 41, but may connect the front ends of a pair of side wall sections 41. In the above modified example, "front side" corresponds to "one side in the front-rear direction" described in the [Means for Solving the Problem] column, and "rear side" corresponds to "the other side in the front-rear direction" described in the [Means for Solving the Problem] column.
[0052] The front structure 13 is not limited to the configuration illustrated in this embodiment, in which one pop-up hood device 20 is attached to each side of the main body 30 in the vehicle width direction. For example, it may be a configuration in which only one pop-up hood device 20 is attached to the center of the upper part 32 in the vehicle width direction.
[0053] The front structure of the vehicle according to the present invention can also be embodied as a so-called radiator support that supports the radiator. [Explanation of Symbols]
[0054] ER...Engine Room V...Virtual plane 10... Vehicles 10A... Vehicle body 11...Front part 12…Food 13...Front structure 20…Pop-up hood device 21… Actuator 22... Piston section 23...Cylinder section 24…Bracket 25...Base 26…First fixed part 27…Second fixed part 28…Fastening hole 30...Main body 30a...Outer edge 31... Side section 32... Upper Department 32a...Edge 33...Stay section 34…Arch section 34a, 34b...Edge 35...Connection part 36...Connection part 41... Side wall section 42...Bottom wall 43...Protrusion part 44… Groove 45...Bead shape 46…Fastening hole 47…Reinforcement ribs 47a... Longitudinal ribs 47b...Transverse ribs 48... Enclosing part 48a…First enclosing part 48b…Second enclosure 49…Fastening hole 51... Bolt 52... Blind Nut
Claims
1. The front of the vehicle consists of a resin main body that forms part of the vehicle body, A pop-up hood device comprising an actuator that lifts the front part of the vehicle's hood when operated, and a bracket for fixing the actuator to the main body, When the longitudinal direction of the aforementioned vehicle is defined as the longitudinal direction, The main body comprises a pair of side wall portions extending in the front-rear direction and spaced apart from each other, and a bottom wall portion connecting the ends of the pair of side wall portions in the front-rear direction. The bottom wall portion is provided with fastening holes through which the bracket is fastened from one side in the front-rear direction via fastening members, and reinforcing ribs that protrude toward the other side in the front-rear direction and form a surrounding portion together with the side wall portion that surrounds the fastening holes. The front structure of the vehicle.
2. The bottom wall portion is provided with a protruding portion that extends toward the other side in the front-rear direction and along the pair of side wall portions, and a groove portion formed on the opposite side of the protruding portion in the front-rear direction and opening to one side in the front-rear direction. The surrounding portion is formed by the side wall portion, the reinforcing rib portion and the protruding portion. The front structure of the vehicle according to claim 1.
3. The main body is formed of a fiber-reinforced resin material. The front structure of the vehicle according to claim 1.
4. When the width direction of the vehicle is defined as the vehicle width direction, The surrounding portion includes a portion that extends in the vehicle width direction, The portion in question is composed of the reinforcing rib or the side wall portion. The front structure of a vehicle according to any one of claims 1 to 3.