Hook mounting structure and vehicle equipped with same

Abstract

To provide a technique which can suppress influence on sizes of a vehicle or other components and improve strength of a hook installation structure.SOLUTION: A hook installation structure with a tow hook to pull a vehicle comprises: a first panel which is fixed to a tip part of a vehicle body member extending in a longitudinal direction of the vehicle; a second panel which is joined with the first panel in an opposite side to the vehicle body member; and a hook connection part supported by the first panel and the second panel in which a base end part of the tow hook is detachable. The hook connection member is fixed to the first panel and the second panel in a state that the hook connection member is inserted into respective openings formed in the first panel and the second panel. At least one of the first panel and the second panel includes a swollen part swelling in a direction separated from the other of the first panel and the second panel in a part of a range including the openings.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The technology disclosed in this specification relates to a hook mounting structure and a vehicle equipped with the same. [Background technology]

[0002] Patent Document 1 discloses a hook mounting structure to which a towing hook for towing a vehicle is attached. This hook mounting structure includes a panel (cover member) fixed to the front end portion of a crash box, and a hook connecting member supported by the panel and to which the base end of the towing hook can be detachably attached. A reinforcing member is joined to the panel, and the hook connecting member is fixed to the panel via the reinforcing member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-218637 Summary of the Invention [Problem to be solved by the invention]

[0004] Typically, a force acts on the hook connection member in the longitudinal direction of the vehicle via the towing hook. However, for example, when a towed vehicle (or a towing vehicle) turns, a force acts on the hook connection member in a direction that forms an angle with the longitudinal direction of the vehicle. In this case, the moment of force acting on the hook connection member may cause large localized stresses in the hook mounting structure (particularly, the fastening points of the hook connection member). To avoid this, it is possible to use two panels to fasten the hook connection member and provide a gap between the two panels. With this configuration, the fastening points of the hook connection member are formed in two locations spaced apart in the longitudinal direction, thereby improving the strength of the hook mounting structure against the force moment. However, in order to provide two panels with a gap between them, it is necessary to increase the size of the vehicle or reduce the size of other components, such as crash boxes. As a result, it may not be possible to meet the desired vehicle design requirements.

[0005] In view of the above, this specification provides a technique that can improve the strength of a hook mounting structure while minimizing the impact on the size of a vehicle or other components. [Means for solving the problem]

[0006] The hook mounting structure disclosed in this specification is adapted to mount a towing hook for towing a vehicle. The hook mounting structure includes a first panel fixed to a leading end portion of a vehicle body member extending in the longitudinal direction of the vehicle, a second panel joined to the first panel from the side opposite the vehicle body member, and a hook connecting member supported by the first and second panels and to which a base end portion of the towing hook can be detachably attached. The hook connecting member is fixed to the first and second panels while being inserted into openings formed in the first and second panels. At least one of the first and second panels has a bulging portion that bulges out in a direction away from the other of the first and second panels, over a portion of the area including the opening.

[0007] In the above configuration, a bulge is provided in at least one of the two panels, thereby forming a gap between the two panels. The hook connection member is fixed to the two panels in the area where the two panels are spaced apart from each other. The hook connection member is fixed at two locations spaced apart in the front-to-rear direction, which effectively improves the strength of the hook mounting structure, particularly against force moments acting on the hook connection member. The bulge is provided only in a portion of the panel, allowing the two panels to be positioned close to each other in the remaining areas. Therefore, the necessary gap can be provided between the two panels while minimizing the impact on the size of the vehicle and other components.

[0008] The present specification also discloses a vehicle that includes a vehicle body member extending along the vehicle's longitudinal direction and a hook mounting structure that is fixed to the vehicle body member and that has a towing hook attached thereto for towing the vehicle. The hook mounting structure includes a first panel that is fixed to a leading end of the vehicle body member extending along the vehicle's longitudinal direction, a second panel that is joined to the first panel from the side opposite the vehicle body member, and a hook connecting member that is supported by the first and second panels and to which a base end of the towing hook can be detachably attached. The hook connecting member is fixed to the first and second panels while being inserted into openings formed in the first and second panels. At least one of the first and second panels has a bulging portion that bulges out in a direction away from the other of the first and second panels, in a portion including the opening.

[0009] The above configuration can achieve the same effects as the above hook mounting structure. [Brief explanation of the drawings]

[0010] [Figure 1] 1 shows a schematic side view of a vehicle according to a first embodiment. [Figure 2] 1 is a perspective view of the vicinity of a hook mounting structure for a vehicle according to a first embodiment. [Figure 3] 1 is a cross-sectional view of a vehicle body member and a hook mounting structure according to a first embodiment. [Figure 4] FIG. 2 is a perspective view of the second panel of the first embodiment. [Figure 5] 10 is a cross-sectional view of a vehicle body member and a hook mounting structure according to a second embodiment.

[0011] In one embodiment of the present technology, the bulge portion may be provided on at least the second panel.

[0012] In the above configuration, the second panel is disposed on the opposite side of the first panel from the vehicle body member, allowing the shape of the second panel to be freely designed, which makes it easy to provide a bulge portion in the second panel.

[0013] In one embodiment of the present technology, the second panel may have a peripheral portion located outside the bulge portion. The first panel may have a peripheral portion to which the peripheral portion of the second panel is joined. The peripheral portion of the first panel may be joined to a leading end portion of the vehicle body member.

[0014] In the above configuration, the peripheral portion of the first panel is joined to both the vehicle body member and the second panel, which prevents the fastening structure for fastening the vehicle body member and the second panel to the first panel from becoming complicated.

[0015] In one embodiment of the present technology, the bulge portion may be provided on at least the first panel. The bulge portion of the first panel may be at least partially located inside the vehicle body member.

[0016] With the above configuration, the influence on the size of the vehicle and other components can be further reduced.

[0017] In one embodiment of the present technology, the bulge may have a frustum shape, and the opening may be located at the apex of the frustum shape.

[0018] In the above configuration, the strength of the hook mounting structure can be more effectively improved against the force moment acting on the hook connection member compared to a configuration in which the opening is not located at the apex of the frustum shape.

[0019] In one embodiment of the present technology, the shape of the first panel may be equal to the shape of the second panel.

[0020] With the above configuration, the number of types of parts can be reduced.

[0021] In one embodiment of the present technology, the vehicle body member may include a crash box fixed to a tip portion of a side member extending in the front-rear direction of the vehicle.

[0022] In the above configuration, when the vehicle collides, the crash boxes collapse, thereby making it possible to sufficiently absorb the collision energy acting on the vehicle. DETAILED DESCRIPTION OF THE INVENTION

[0023] (First Example) As shown in Fig. 1, a vehicle 10 of the first embodiment is a vehicle such as an engine vehicle, an electric vehicle, a hybrid vehicle, or a fuel cell vehicle. The vehicle 10 includes a vehicle body member 12, a hook mounting structure 14, and a bumper reinforcement 16. In Fig. 1, the vehicle body member 12, the hook mounting structure 14, and the bumper reinforcement 16 are shown by dashed lines.

[0024] The vehicle body member 12 includes two side members 20 and two crash boxes 22. The side members 20 form the framework of the vehicle 10. The side members 20 are located at the front of the vehicle 10 and extend in the longitudinal direction of the vehicle 10. The two side members 20 are disposed spaced apart in the lateral direction of the vehicle 10. The following describes the configuration of one of the side members 20 as an example.

[0025] The crash boxes 22 are fixed to the front end portions 20a of the side members 20. When an external force acts on the crash boxes 22, for example, when the vehicle 10 collides and an external force accompanying the collision acts on the crash boxes 22, the crash boxes 22 are configured to collapse.

[0026] The hook mounting structure 14 is fixed to the front end portion 22a of the crash box 22. A towing hook 2 can be attached to the hook mounting structure 14. In FIG. 1, the towing hook 2 is shown by dashed and solid lines. When the towing hook 2 is attached to the hook mounting structure 14, a portion (the front portion) of the towing hook 2 is positioned outside the vehicle 10. The towing hook 2 is used to tow the vehicle 10, for example, when the vehicle 10 breaks down and is unable to travel.

[0027] The bumper reinforcement 16 is fixed to the hook mounting structure 14. The bumper reinforcement 16 is disposed on the front side of the hook mounting structure 14.

[0028] As shown in Fig. 2, the hook mounting structure 14 includes a first panel 30, a second panel 32, and a hook connecting member 34. In Fig. 2, the bumper reinforcement 16 is not shown to make it easier to understand the shape of the hook mounting structure 14.

[0029] As shown in FIG. 3, the first panel 30 is joined to the front end portion 22a of the crash box 22. The first panel 30 and the front end portion 22a of the crash box 22 may be joined by welding or by fastening using screws. The first panel 30 includes a first plate portion 38 and a first flange portion 40. The first plate portion 38 has a plate shape. The first flange portion 40 extends forward from the periphery of the first plate portion 38.

[0030] The first plate portion 38 includes a first central portion 44 and a first peripheral portion 46. The first central portion 44 is surrounded by the front end portion 22a of the crash box 22 when the first panel 30 is joined to the front end portion 22a of the crash box 22. The first central portion 44 is disposed in the central region of the first plate portion 38. The first central portion 44 has a first opening 44a that penetrates the first central portion 44 in the thickness direction (front-rear direction). The first opening 44a has a substantially circular shape.

[0031] The first peripheral portion 46 is disposed outside the first central portion 44. The first peripheral portion 46 is joined to the front end portion 22a of the crash box 22. The periphery of the first peripheral portion 46 corresponds to the periphery of the first plate portion 38.

[0032] The second panel 32 is joined to the first panel 30. The joining of the second panel 32 and the first panel 30 may be performed by welding or by fastening using screws. The second panel 32 is arranged on the opposite side of the first panel 30 from the crash box 22. In this embodiment, the second panel 32 is arranged on the front side of the first panel 30. The second panel 32 includes a second plate portion 50 and a second flange portion 52. The second plate portion 50 has a plate shape. The second flange portion 52 extends from the periphery of the second plate portion 50 toward the front side. The second flange portion 52 is in contact with the first flange portion 40.

[0033] As shown in FIG. 4 , the second plate portion 50 includes a bulging portion 54 and a second peripheral portion 56. The bulging portion 54 is disposed in a range facing the first central portion 44 in the front-to-rear direction when the second panel 32 is joined to the first panel 30. The bulging portion 54 has a generally truncated cone shape. In a modified example, the bulging portion 54 may have a generally truncated pyramid shape. The bulging portion 54 bulges in a direction away from the first central portion 44 (forward). The bulging portion 54 includes side portions 58 that define the side surfaces of the generally truncated cone shape and an apex portion 60 that defines the top surface of the generally truncated cone shape. The apex portion 60 is disposed at a position farthest from the first central portion 44.

[0034] The top 60 has a second opening 60a penetrating the top 60 in the thickness direction (front-rear direction). The center of the second opening 60a is located approximately at the same position as the center of the top 60. The second opening 60a overlaps with the first opening 44a (see FIG. 3) in the front-rear direction when the second panel 32 is joined to the first panel 30 (see FIG. 3). The second opening 60a has a substantially circular shape. The diameter of the second opening 60a is approximately equal to the diameter of the first opening 44a.

[0035] The second peripheral portion 56 is disposed outside the bulge portion 54. The second peripheral portion 56 is connected to the side portion 58. The second peripheral portion 56 is disposed in a range facing the first peripheral portion 46 in the front-to-rear direction when the second panel 32 is joined to the first panel 30. The second peripheral portion 56 is joined to the first peripheral portion 46. The second peripheral portion 56 is disposed close to the first peripheral portion 46, and in this embodiment, the second peripheral portion 56 is in surface contact with the first peripheral portion 46. The periphery of the second peripheral portion 56 corresponds to the periphery of the second plate portion 50.

[0036] The bumper reinforcement 16 is disposed in front of the second peripheral portion 56. The bumper reinforcement 16 is fastened to the first peripheral portion 46 and the second peripheral portion 56 using screws 64.

[0037] As shown in FIG. 3 , the hook connection member 34 is inserted into each of the first opening 44a of the first plate portion 38 and the second opening 60a of the second plate portion 50. The hook connection member 34 is joined by welding to each of the first central portion 44 and the bulging portion 54. The hook connection member 34 is fixed to the first plate portion 38 and the second plate portion 50 at locations where the first plate portion 38 and the second plate portion 50 are spaced apart in the fore-and-aft direction. A portion of the hook connection member 34 (a region near the rear end) is located inside the crash box 22. The hook connection member 34 has a generally cylindrical shape extending in the fore-and-aft direction. The diameter of the outer circumferential surface of the hook connection member 34 is slightly smaller than the diameter of the first opening 44a and the diameter of the second opening 60a. The hook connection member 34 has an attachment opening 34a extending in the fore-and-aft direction. The base end 2a of the towing hook 2 can be inserted into the attachment opening 34a from the front side. When the base end portion 2a of the towing hook 2 is inserted into the attachment opening 34a, the towing hook 2 is attached to the hook connecting member 34. In other words, the towing hook 2 can be attached to and detached from the hook connecting member 34.

[0038] Next, a method for fixing the hook mounting structure 14 and the bumper reinforcement 16 to the crash box 22 will be described. First, the first panel 30 and the second panel 32 are joined together. Next, the hook connecting member 34 is inserted into the first opening 44a of the first panel 30 and the second opening 60a of the second panel 32, and then the hook connecting member 34 is joined to the first panel 30 and the second panel 32. Next, the first panel 30 of the integrated structure of the first panel 30, the second panel 32, and the hook connecting member 34 is joined to the front end portion 22a of the crash box 22. Finally, the bumper reinforcement 16 is fastened to the second panel 32 from the front side of the integrated structure using screws 64.

[0039] Next, we will explain the external force acting on the hook mounting structure 14 when the vehicle 10 is towed using the towing hook 2. As shown in FIG. 2 , when the vehicle 10 is towed with the towing hook 2 attached to the hook mounting structure 14, the hook connection member 34 is pulled, causing an external force to act on the hook connection member 34 in the fore-and-aft direction of the vehicle 10. When the towed vehicle 10 turns, an external force acts on the hook connection member 34 in a direction that forms an angle with the fore-and-aft direction of the vehicle 10. Here, the hook connection member 34 is fixed to the first center portion 44 of the first panel 30 and the bulge portion 54 of the second panel 32, which are spaced apart from each other. This improves the strength of the hook mounting structure 14 compared to when the hook connection member 34 is fixed to panels that are in contact with each other. Therefore, even if an external force acts on the hook connection member 34, the first panel 30 and the second panel 32 are less likely to be damaged. Furthermore, the bulge portion 54 has a generally truncated cone shape, which ensures the strength of the second panel 32 against external forces in directions that form an angle with the fore-and-aft direction of the vehicle 10. Therefore, even if an external force acts on the hook connecting member 34 in a direction that forms an angle with the fore-and-aft direction of the vehicle 10, the bulge portion 54 is less likely to be damaged.

[0040] Next, a situation will be described when the vehicle 10 collides with a collision target. As shown in Figure 2, the first peripheral portion 46 of the first panel 30 is in surface contact with the second peripheral portion 56 of the second panel 32, and the first peripheral portion 46 is fixed to the crash box 22. For this reason, in the vehicle 10 of this embodiment, it is not necessary to reduce the longitudinal size of the crash box 22. When the vehicle 10 collides with a collision target from the front while traveling, a crushing margin is ensured for the crash box 22. This allows the collision energy of the vehicle 10 to be absorbed by the crash box 22.

[0041] (effect) In this embodiment, a towing hook 2 for towing a vehicle 10 is attached to the hook mounting structure 14. The hook mounting structure 14 includes a first panel 30 fixed to a front end portion 22a (an example of a tip portion) of a body member 12 extending in the longitudinal direction of the vehicle 10, a second panel 32 joined to the first panel 30 from the side opposite the body member 12, and a hook connecting member 34 supported by the first panel 30 and the second panel 32 and to which the base end portion 2a of the towing hook 2 can be detachably attached. The hook connecting member 34 is fixed to the first panel 30 and the second panel 32 in a state where it is inserted into a first opening 44a (an example of an opening) formed in the first panel 30 and a second opening 60a (an example of an opening) formed in the second panel 32. At least one of the first panel 30 and the second panel 32 has a bulging portion 54 that bulges in a direction away from the other of the first panel 30 and the second panel 32, and is provided in a portion of the area including the first opening 44a and the second opening 60a.

[0042] In the above configuration, the bulge 54 is provided in at least one of the first panel 30 and the second panel 32, thereby creating a gap between the first panel 30 and the second panel 32. The hook connection member 34 is fixed to the first panel 30 and the second panel 32 in the area where the first panel 30 and the second panel 32 are spaced apart from each other. The hook connection member 34 is fixed at two locations spaced apart in the front-to-rear direction, which effectively improves the strength of the hook mounting structure 14, particularly against force moments acting on the hook connection member 34. The bulge 54 is provided only in a portion of the second panel 32, allowing the first panel 30 and the second panel 32 to be positioned closely together in the remaining areas. This allows the necessary gap to be created between the first panel 30 and the second panel 32 while minimizing the impact on the size of the vehicle 10 and other components.

[0043] The bulging portion 54 is provided at least on the second panel 32.

[0044] In the above configuration, the second panel 32 is disposed on the opposite side of the first panel 30 from the vehicle body member 12, and therefore the shape of the second panel 32 can be freely designed. This makes it easy to provide the bulge 54 in the second panel 32.

[0045] The second panel 32 also has a second peripheral portion 56 (an example of a peripheral portion) located outside the bulging portion 54. The first panel 30 has a first peripheral portion 46 (an example of a peripheral portion) to which the second peripheral portion 56 of the second panel 32 is joined. The first peripheral portion 46 of the first panel 30 is joined to the front end portion 22a of the vehicle body member 12.

[0046] In the above configuration, the first peripheral portion 46 of the first panel 30 is joined to both the vehicle body member 12 and the second panel 32. This prevents the fastening structure for fastening the vehicle body member 12 and the second panel 32 to the first panel 30 from becoming complicated.

[0047] The bulge 54 has a frustum shape. The second opening 60a is located at the top 60 of the frustum shape.

[0048] In the above configuration, the strength of the hook mounting structure 14 can be more effectively improved against the force moment acting on the hook connecting member 34 compared to a configuration in which the second opening 60a is not located at the apex 60 of the frustum shape.

[0049] The vehicle body member 12 also includes crash boxes 22 fixed to front end portions 20a (an example of a tip portion) of side members 20 extending in the longitudinal direction of the vehicle 10.

[0050] In the above configuration, when the vehicle 10 collides, the crash boxes 22 collapse, and the collision energy acting on the vehicle 10 can be sufficiently absorbed.

[0051] (Second Example) A second embodiment will be described with reference to Figure 5. In the second embodiment, only the differences from the first embodiment will be described, and the same parts as in the first embodiment will be denoted by the same reference numerals and will not be described again. In the second embodiment, the shape of the first panel 30 is similar to the shape of the second panel 32. In the second embodiment, the first panel 30 has a bulge portion 136 instead of the first central portion 44 of the first embodiment.

[0052] The bulge 136 of the first panel 30 has a shape similar to the bulge 54 of the second panel 32. The bulge 136 has a generally truncated cone shape. In a modified example, the bulge 136 may have a generally truncated pyramid shape. The bulge 136 bulges in a direction away from the second panel 32 (rearward). Therefore, the second panel 32 is disposed relative to the first panel 30 so that the back surface of the first panel 30 faces the back surface of the second panel 32. The bulge 136 is located inside the crash box 22. When the first panel 30 is joined to the second panel 32, the bulge 136 is disposed in a range that faces the bulge 54 of the second panel 32 in the front-rear direction.

[0053] The bulge 136 has side portions 138 that define the side surfaces of the generally truncated cone shape, and an apex 140 that defines the top surface of the generally truncated cone shape. The apex 140 is located at a position farthest from the second panel 32. A first opening 140a is formed in the apex 140. The center of the first opening 140a is located approximately equal to the center of the apex 140. When the first panel 30 is joined to the second panel 32, the first opening 140a overlaps with the second opening 60a of the second panel 32 in the front-to-rear direction. The first opening 140a has a generally circular shape. The diameter of the first opening 140a is approximately equal to the diameter of the second opening 60a.

[0054] (effect) The bulge 136 is provided on at least the first panel 30. The bulge 136 of the first panel 30 is at least partially located inside the vehicle body member 12.

[0055] The above configuration can further reduce the impact on the size of the vehicle 10 and other components.

[0056] The shape of the first panel 30 is the same as the shape of the second panel 32 .

[0057] With the above configuration, the number of types of parts can be reduced.

[0058] Although specific examples of the present invention have been described above in detail, these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and alterations of the specific examples exemplified above.

[0059] In a modified example, the first panel 30 may have the bulge 136 formed therein, and the second panel 32 may not have the bulge 54 formed therein.

[0060] In a modified embodiment, the bulge 54 of the second panel 32 may be positioned across the side 58 and the top 60. Also, the bulge 136 of the first panel 30 may be positioned across the side 138 and the top 140.

[0061] In a modified example, the vehicle body member 12 does not necessarily have to include the crash boxes 22. In this case, the hook mounting structure 14 may be fixed directly to the front end portion 20a of the side member 20.

[0062] In a modified example, the hook mounting structure 14 may be provided at the rear of the vehicle 10. In this case, the hook mounting structure 14 may be fixed to a vehicle body member located at the rear of the vehicle 10. As one example, the hook mounting structure 14 may be fixed to the rear end portion of a rear side member. In this case, the hook mounting structure 14 may be fixed to the rear end portion of the side member via a crash box. Alternatively, the hook mounting structure 14 may be fixed directly to the rear end portion of the side member without via a crash box.

[0063] In a modified example, the shape of the bulging portions 54, 136 may be a shape other than a frustum shape, for example, a cylindrical shape.

[0064] The technical elements described in this specification or drawings may exhibit technical utility alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. Furthermore, the technologies illustrated in this specification or drawings may achieve multiple objectives simultaneously, and achieving one of those objectives alone is technically useful. [Explanation of symbols]

[0065] 2: Tow hook 2a: Proximal end 10: Vehicle 12: Body parts 14: Hook mounting structure 16: Bumper Reinforcement 20: Side member 20a: Front end part 22: Crash Box 22a: Front end part 30: First panel 32: Second panel 34: Hook connection member 34a: Mounting opening 38: First plate part 40: First flange 44:1st center 44a: First opening 46: First peripheral part 50: Second plate section 52: Second flange 54 :bulge 56: Second peripheral area 58: Side 60:Top 60a: Second opening 64: Screw 136 :bulge 138: Side 140:Top 140a: 1st opening

Claims

1. A hook mounting structure to which a towing hook for towing a vehicle is attached, a first panel fixed to a leading end portion of a vehicle body member extending in the front-rear direction of the vehicle; a second panel joined to the first panel from the side opposite to the vehicle body member; a hook connecting member supported by the first panel and the second panel and to which a base end of the towing hook can be detachably attached, the hook connecting member is inserted into a first opening formed in the first panel and a second opening formed in the second panel, and is fixed to the first panel and the second panel; the first panel includes a first bulging portion that bulges in a direction away from the second panel, the first opening is formed in the first bulge, the first panel includes a second bulging portion that bulges in a direction away from the first panel, the second opening is formed in the second bulge, A bumper reinforcement of the vehicle is fixed to the second panel from the side opposite to the first panel. Hook mounting structure.

2. the second panel has a peripheral portion located outside the second bulge portion, the first panel has a periphery to which the periphery of the second panel is joined; The hook mounting structure according to claim 1 , wherein the peripheral portion of the first panel is joined to the leading end portion of the vehicle body member.

3. 2. The hook mounting structure of claim 1, wherein the first bulge of the first panel is at least partially located within the vehicle body member.

4. The first bulge portion and the second bulge portion have a frustum shape, The hook attachment structure according to claim 1 , wherein the first opening and the second opening are located at the apex of the frustum shape.

5. The hook attachment structure according to claim 1 , wherein the shape of the first panel is the same as the shape of the second panel.

6. 6. The hook mounting structure according to claim 1, wherein the vehicle body member includes a crash box fixed to a tip end portion of a side member extending in the longitudinal direction of the vehicle.

7. A vehicle, a vehicle body member extending along the front-rear direction of the vehicle; a hook mounting structure fixed to the vehicle body member and to which a towing hook for towing the vehicle is attached; Equipped with bumper reinforcement, The hook mounting structure is a first panel fixed to a tip portion of the vehicle body member extending in the front-rear direction of the vehicle; a second panel joined to the first panel from the side opposite to the vehicle body member; a hook connecting member supported by the first panel and the second panel and to which a base end of the towing hook can be detachably attached, the hook connecting member is inserted into a first opening formed in the first panel and a second opening formed in the second panel, and is fixed to the first panel and the second panel; the first panel includes a first bulging portion that bulges in a direction away from the second panel, the first opening is formed in the first bulge, the first panel includes a second bulging portion that bulges in a direction away from the first panel, the second opening is formed in the second bulge, The bumper reinforcement is fixed to the second panel from the opposite side of the second panel to the first panel. vehicle.

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