First joint member, second joint member, and joint structure

Abstract

The present disclosure relates to a first joining member for joining an instrument panel reinforcement to a vehicle body, and the first joining member is provided with an upper side body fastening surface and a lower side body fastening surface for fastening the instrument panel reinforcement to the vehicle body. The first joining member is configured to be able to hold the instrument panel reinforcement between the upper side body fastening surface and the lower side body fastening surface. A line that is orthogonal to a virtual plane connecting the upper side body fastening surface and the lower side body fastening surface and that passes through a center axis of the instrument panel reinforcement extending in the vehicle width direction in a state of being held by the first joining member is taken as a virtual line. A distance from the center axis along the virtual line to the virtual plane is less than or equal to a distance from the center axis along the virtual line to an outer peripheral surface of the instrument panel reinforcement.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a joint member for joining an instrument panel reinforcement and a vehicle body of a vehicle. BACKGROUND

[0002] A bracket is disclosed in Japanese Patent Application Publication No. 2001-10509. The bracket is a tubular member extending in a vehicle width direction, and is a joint member for joining an end portion of an instrument panel reinforcement that supports a steering device to a vehicle body of a vehicle. The bracket has a mounting surface portion for mounting to the vehicle body, and a curved surface portion extending perpendicularly from an edge of the mounting surface portion with respect to the mounting surface portion, and formed so as to surround the mounting surface portion. The curved surface portion has two joint portions that oppose each other in the vehicle width direction and that are joined to the instrument panel reinforcement. SUMMARY

[0003] However, in order to ensure rigidity, the above-described bracket is formed so as to surround the instrument panel reinforcement by the mounting surface portion and the curved surface portion, and thus there is a problem that the weight increases and the lightening of the vehicle is not facilitated.

[0004] One aspect of the present disclosure preferably provides a joint member that can both suppress an increase in weight and improve rigidity.

[0005] One aspect of the present disclosure is a first joint member for joining an instrument panel reinforcement to be mounted to a vehicle body of a vehicle in a state of extending in a vehicle width direction, and the first joint member has an upper side vehicle body fastening surface and a lower side vehicle body fastening surface. The upper side vehicle body fastening surface fastens the instrument panel reinforcement to the vehicle body. The lower side vehicle body fastening surface is located below the upper side vehicle body fastening surface and fastens the instrument panel reinforcement to the vehicle body. The first joint member is configured to be able to hold the instrument panel reinforcement between the upper side vehicle body fastening surface and the lower side vehicle body fastening surface. A line that is orthogonal to a virtual plane connecting the upper side vehicle body fastening surface and the lower side vehicle body fastening surface and that passes through a center axis of the instrument panel reinforcement extending in the vehicle width direction in a state of being held by the first joint member is taken as a virtual line. A distance from the center axis along the virtual line to the virtual plane is smaller than or equal to a distance from the center axis along the virtual line to an outer peripheral surface of the instrument panel reinforcement.

[0006] In the above-described configuration, a part of a transmission path of a force from the steering device supported by the instrument panel reinforcement to the vehicle body, that is, a length of a path connecting between the instrument panel reinforcement and the upper side vehicle body fastening surface, the lower side vehicle body fastening surface is easily shortened. Therefore, it is possible to improve the rigidity of the first joint member. As a result, since the structure of the first joint member is easily simplified, it is possible to suppress an increase in weight of the first joint member.

[0007] In one aspect of the present disclosure, the first joining member can be configured to cover a portion of the outer peripheral surface of the instrument panel reinforcement in the circumferential direction. At least one of the first fastening holes provided in the upper side vehicle body fastening surface and the lower side vehicle body fastening surface can be located in the vicinity of the instrument panel reinforcement. According to the above-described configuration, since the first joining member can hold the instrument panel reinforcement without covering the entire outer peripheral surface of the instrument panel reinforcement in the circumferential direction, the weight of the first joining member can be suppressed compared to a configuration in which the entire outer peripheral surface is covered in the circumferential direction. Further, since at least one of the first fastening holes is located in the vicinity of the instrument panel reinforcement, the length of a portion of the transmission path, i.e., a path connecting the first fastening hole of the instrument panel reinforcement and at least one of the first fastening holes of the upper side vehicle body fastening surface and the lower side vehicle body fastening surface, is easily shortened. Thus, the rigidity of the first joining member can be improved.

[0008] One aspect of the present disclosure can further include a linking portion for connecting the upper side vehicle body fastening surface and the lower side vehicle body fastening surface and for holding the outer peripheral surface of the instrument panel reinforcement. According to the above-described configuration, the first joining member can be configured by one member.

[0009] In one aspect of the present disclosure, the length of the linking portion in the vehicle width direction can be longer than the lengths of the upper side vehicle body fastening surface and the lower side vehicle body fastening surface in the vehicle width direction. Further, the linking portion can have a cutout at an edge thereof in the vehicle width direction extending in the circumferential direction, which is a direction around the outer peripheral surface of the instrument panel reinforcement. According to the above-described configuration, the linking portion can abut against the outer peripheral surface of the instrument panel reinforcement over a certain length range along the center axis, and the area of the linking portion as a whole can be reduced by the cutout.

[0010] One aspect of the present disclosure is a second joining member for joining an instrument panel reinforcement to be installed in a vehicle to a vehicle body of the vehicle in a state of extending in a vehicle width direction, the second joining member including an instrument panel fastening surface and an extension surface. The instrument panel fastening surface fastens the instrument panel reinforcement. The extension surface extends from an edge of the instrument panel fastening surface. A second fastening hole is provided in the instrument panel fastening surface. A welding portion is provided at an edge of the extension surface, the welding portion joining the extension surface and the vehicle body of the vehicle to each other. In the second joining member, a portion from the welding portion of the extension surface to the second fastening hole of the instrument panel fastening surface is formed in a substantially planar shape.

[0011] In the above-described configuration, a portion of the transmission path, i.e., a path connecting the second fastening hole of the instrument panel fastening surface and the vehicle body of the vehicle, is easily shortened. Thus, the rigidity of the second joining member can be improved. As a result, since the structure of the second joining member is easily simplified, a weight increase can be suppressed, for example, when the second joining member is combined with other members for joining the instrument panel reinforcement to the vehicle body of the vehicle.

[0012] One aspect of the present disclosure is a joint structure having the above-described first joint member and the above-described second joint member. The instrument panel fastening surface has an upper instrument panel fastening surface and a lower instrument panel fastening surface located below the upper instrument panel fastening surface. The second fastening hole is provided in each of the upper instrument panel fastening surface and the lower instrument panel fastening surface. The extension surface has an upper extension surface extending from an edge of the upper instrument panel fastening surface and a lower extension surface extending from an edge of the lower instrument panel fastening surface. The upper vehicle body fastening surface is fastened to the upper instrument panel fastening surface. The lower vehicle body fastening surface is fastened to the lower instrument panel fastening surface.

[0013] In the above-described configuration, the length of the transmission path via the first joint member and the second joint member is easily shortened. Therefore, the rigidity of the joint structure can be improved. As a result, since the structure of the joint structure is easily simplified, the increase in weight of the joint structure can be suppressed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 FIG. 1 is a perspective view schematically showing a state in which an instrument panel reinforcement is joined to a vehicle body of a vehicle via a joint structure.

[0015] Figure 2 FIG. 2 is a plan view schematically showing a state in which the instrument panel reinforcement is joined to the vehicle body of the vehicle via the joint structure.

[0016] Figure 3 FIG. 3 is a side view schematically showing a state in which the instrument panel reinforcement is joined to the vehicle body of the vehicle via the joint structure.

[0017] Figure 4 FIG. 4 is a perspective view showing the first joint member.

[0018] Figure 5 FIG. 5 is a perspective view showing the second joint member.

[0019] Figure 6 FIG. 6 is a perspective view showing a state in which the first joint member and the second joint member are superposed.

[0020] Figure 7 FIG. 7 is a front view showing a state in which the first joint member and the second joint member are superposed.

[0021] Figure 8 FIG. 8 is a side view showing a joint structure having the first joint member composed of two members. DETAILED DESCRIPTION

[0022] An exemplary embodiment of the present disclosure will be described below with reference to the accompanying drawings.

[0023] [1. Configuration]

[0024] <Joint structure>

[0025] Figures 1 to 3 The joint structure 100 shown is used to join an instrument panel reinforcement 200 to be mounted to a vehicle body in a state of extending in the vehicle width direction (in other words, the right-left direction of the vehicle).

[0026] The instrument panel reinforcement 200 is a tubular member and has a center axis A extending in the vehicle width direction. As shown in Figure 3 In the present embodiment, the cross-sectional shape of the instrument panel reinforcement 200 orthogonal to the center axis A is substantially circular. In addition, the cross-sectional shape of the instrument panel reinforcement orthogonal to the center axis is not limited to circular, and can be square, for example. The instrument panel reinforcement 200 supports a steering device.

[0027] The joint structure 100 is provided at both end portions of the instrument panel reinforcement 200 and is fixed to Figure 1 and Figure 2 the pillar 300 that constitutes the vehicle body as shown. The pillar 300 is, for example, a driver's seat side pillar and a front passenger's seat side pillar. In the following description, the upper, lower, front, rear, right, and left of the vehicle will be simply referred to as the upper, lower, front, rear, right, and left. As shown in Figures 1 to 3 The joint structure 100 has a first joint member 1, a second joint member 2, and a fastening member 3. The joint structure 100 is formed by fastening the first joint member 1 and the second joint member 2 with the fastening member 3.

[0028] <First joint member>

[0029] The first joint member 1 is, for example, a bracket, holds the instrument panel reinforcement 200, and is fastened to the vehicle body (in the present embodiment, the second joint member 2 described later). As shown in Figure 4 The first joint member 1 has an upper fastening portion 11, two upper side walls 112, a lower fastening portion 12, two lower side walls 122, and a connecting portion 13.

[0030] The upper fastening portion 11 is a flat plate in a rectangular shape and has an upper body fastening surface 111 for fastening to the second joint member 2 described later. The upper body fastening surface 111 extends in the up-down direction and the right-left direction and has a substantially planar shape. The substantially planar shape can refer to a flat surface or a not completely flat surface having a slight curvature or a slight bend. The first upper fastening hole 113 is provided in the upper fastening portion 11. The first upper fastening hole 113 penetrates the upper body fastening surface 111 in the front-rear direction.

[0031] The two upper side walls 112 extend rearward substantially perpendicularly with respect to the upper side vehicle body fastening surface 111 from left and right side edges extending in the up-down direction of the upper side fastening portion 11. Upper side abutting portions 114 are provided at lower end portions of the two upper side walls 112, respectively, and extend outward of the two upper side walls 112 and abut the outer peripheral surface 201 of the instrument panel reinforcement 200.

[0032] The lower side fastening portion 12 is located below and spaced apart from the upper side fastening portion 11. The lower side fastening portion 12 is a flat plate in a rectangular shape, and has a lower side vehicle body fastening surface 121 for fastening to the second joint member 2 described later. The lower side vehicle body fastening surface 121 extends in the up-down direction and the left-right direction and has a substantially planar shape. A first lower fastening hole 123 is provided in the lower side fastening portion 12. The first lower fastening hole 123 penetrates the lower side vehicle body fastening surface 121 in the front-rear direction.

[0033] The two lower side walls 122 extend rearward substantially perpendicularly with respect to the lower side vehicle body fastening surface 121 from left and right side edges extending in the up-down direction of the lower side fastening portion 12. Lower side abutting portions 124 are provided at upper end portions of the two lower side walls 122, respectively, and extend outward of the two lower side walls 122 and abut the outer peripheral surface 201 of the instrument panel reinforcement 200.

[0034] The link portion 13 is a plate-shaped member bent along the outer peripheral surface 201 of the instrument panel reinforcement 200, and links the upper side fastening portion 11 and the lower side fastening portion 12 to each other. In the present embodiment, the link portion 13 is bent in a manner projecting toward the front. The link portion 13 abuts the outer peripheral surface 201 of the instrument panel reinforcement 200. As shown in Figure 3 The link portion 13 has a flat portion 132 in a substantially planar shape at a central portion in the circumferential direction around the outer peripheral surface 201 of the instrument panel reinforcement 200.

[0035] As shown in Figure 4 and 7 The length of the link portion 13 in the left-right direction is longer than the lengths of the upper side vehicle body fastening surface 111 and the lower side vehicle body fastening surface 121 in the left-right direction. Specifically, the length of the link portion 13 in the left-right direction is greater than the distance between the two upper side walls 112 and the distance between the two lower side walls 122. The link portion 13 has two cutouts 131 arranged in the circumferential direction at left and right edges extending in the circumferential direction, respectively. Thus, the link portion 13 abuts the outer peripheral surface 201 of the instrument panel reinforcement 200 over a certain length along the center axis A, and the area of the entire link portion 13 can be reduced by the cutouts 131. As a result, the instrument panel reinforcement 200 can be stably held by the first joint member 1, and the first joint member 1 can be lightweighted.

[0036] As shown in Figure 3 and Figure 7 , the first joining member 1 can hold the instrument panel reinforcement 200 between the upper side fastening portion 11 and the lower side fastening portion 12. In the present embodiment, the first joining member 1 holds the outer peripheral surface 201 of the instrument panel reinforcement 200 by the upper side abutting portion 114, the lower side abutting portion 124, and the linking portion 13. The first joining member 1 covers only a part of the outer peripheral surface 201 along the circumferential direction of the outer peripheral surface 201 of the instrument panel reinforcement 200 in a cross section orthogonal to the center axis A. In the present embodiment, the outer peripheral surface of about half of the outer peripheral surface 201 of the instrument panel reinforcement 200 is covered in the circumferential direction by the upper side abutting portion 114, the lower side abutting portion 124, and the linking portion 13.

[0037] As shown in Figure 3 , in a state where the first joining member 1 holds the instrument panel reinforcement 200, the distance tl from the center axis A along the virtual line L to the virtual plane P is smaller than or equal to the distance t2 from the center axis A along the virtual line L to the outer peripheral surface 201 of the instrument panel reinforcement 200. The virtual plane P is a plane connecting the upper side vehicle body fastening surface 111 and the lower side vehicle body fastening surface 121. The virtual line L is a line orthogonal to the virtual plane P and passing through the center axis A of the instrument panel reinforcement 200 in the state of being held by the first joining member 1. In the present embodiment, since the distance t2 is the radius of a circle formed by the outer peripheral surface 201 of the instrument panel reinforcement 200, the distance tl is smaller than or equal to the radius.

[0038] At least one of the first upper fastening hole 113 of the upper side fastening portion 11 and the first lower fastening hole 123 of the lower side fastening portion 12 is located in the vicinity of the instrument panel reinforcement 200 in the state of being held by the first joining member 1. In the present embodiment, as shown in Figure 7 , when the joining structure 100 is viewed from the front-rear direction, the center point of the first upper fastening hole 113 is located at a position lower than the center between the upper end of the upper side fastening portion 11 and the upper end of the instrument panel reinforcement 200 in the state of being held by the first joining member 1. That is, the vicinity of the instrument panel reinforcement 200 refers to a position lower than the center. Also, the first lower fastening hole 123 can be located at a position higher than the center between the lower end of the lower side fastening portion 12 and the lower end of the instrument panel reinforcement 200 in the state of being held by the first joining member 1.

[0039] In the state where the first joining member 1 holds the instrument panel reinforcement 200, it is preferable that the first upper fastening hole 113 and the first lower fastening hole 123 are provided at positions that are axially symmetrical with the center axis A of the instrument panel reinforcement 200 as an axis of symmetry, but can be provided at positions that are not axially symmetrical.

[0040] <2nd joint member 2>

[0041] The 2nd joint member 2 is, for example, a corner panel that is a part of a vehicle body of a vehicle, and is fastened to the above-mentioned 1st joint member 1 and fixed to the pillar 300 by welding. As shown in FIG. 1, the 2nd joint member 2 is provided with a main body portion 21 and an extension portion 22. Figure 5

[0042] The main body portion 21 has an upper panel fastening surface 211, a 2nd upper fastening hole 212, a lower panel fastening surface 213, a 2nd lower fastening hole 214, a concave surface 215, two inclined surfaces 216, an upper surface 217, a lower surface 218, and a side surface 219.

[0043] The upper panel fastening surface 211 is a rectangular surface for fastening the panel reinforcement 200 via the 1st joint member 1. The upper panel fastening surface 211 extends in the vertical direction and the horizontal direction and has a substantially planar shape. The 2nd upper fastening hole 212 is provided in the upper panel fastening surface 211. The 2nd upper fastening hole 212 penetrates the upper panel fastening surface 211 in the front-rear direction. As shown in FIG. 2, the upper panel fastening surface 211 abuts the upper body fastening surface 111 of the 1st joint portion in such a manner that the 2nd upper fastening hole 212 is superimposed on the 1st upper fastening hole 113 of the upper body fastening surface 111. Also, the 1st joint member 1 is fixed to the 2nd joint member 2 by inserting a fastening member 3 (e.g., a bolt) shown in FIG. 3 into the 2nd upper fastening hole 212 and the 1st upper fastening hole 113, thereby fastening the upper panel fastening surface 211 to the upper body fastening surface 111. Figure 6 Figure 1

[0044] As shown in FIG. 4, the lower panel fastening surface 213 is located below the upper panel fastening surface 211 and is spaced apart from the upper panel fastening surface 211. The lower panel fastening surface 213 is a rectangular surface for fastening the panel reinforcement 200 via the 1st joint member 1. The lower panel fastening surface 213 extends in the vertical direction and the horizontal direction and has a substantially planar shape. The 2nd lower fastening hole 214 is provided in the lower panel fastening surface 213. The 2nd lower fastening hole 214 penetrates the lower panel fastening surface 213 in the front-rear direction. As shown in FIG. 5, the lower panel fastening surface 213 abuts the lower body fastening surface 121 of the 1st joint portion in such a manner that the 2nd lower fastening hole 214 is superimposed on the 1st lower fastening hole 123 of the lower body fastening surface 121. Also, the 1st joint member 1 is fixed to the 2nd joint member 2 by inserting a fastening member 3 (e.g., a bolt) shown in FIG. 6 into the 2nd lower fastening hole 214 and the 1st lower fastening hole 123, thereby fastening the lower panel fastening surface 213 to the lower body fastening surface 121. Figure 5 Figure 6 Figure 1 ​​​​​The fastening component 3 (e.g., a bolt) shown is inserted into the second lower fastening hole 214 and the first lower fastening hole 123, thereby fastening the lower instrument panel fastening surface 213 to the lower body fastening surface 121, thus fixing the first coupling 1 to the second coupling 2.

[0045] like Figure 5 As shown, the concave surface 215 is a rectangular surface located between the upper instrument panel fastening surface 211 and the lower instrument panel fastening surface 213. The concave surface 215 extends in both the vertical and horizontal directions and has a generally planar shape. The concave surface 215 is located forward of the virtual plane P connecting the upper instrument panel fastening surface 211 and the lower instrument panel fastening surface 213. The upper instrument panel fastening surface 211 and the concave surface 215, and the lower instrument panel fastening surface 213 and the concave surface 215, are connected to each other by two inclined surfaces 216. Thus, as... Figure 3 As shown, a space S is formed in the main body 21, which allows the connecting portion 13 of the first joining member 1 to be embedded in the space S when the first joining member 1 is fastened to the second joining member 2. When the first joining member 1 is fastened to the second joining member 2, the concave surface 215 abuts against the flat portion 132 of the connecting portion 13 of the first joining member 1.

[0046] like Figure 5 As shown, the upper surface 217 extends forward from the upper edge of the upper instrument panel fastening surface 211, which extends in the left-right direction.

[0047] The lower surface 218 is opposite to the upper surface 217 and extends forward from the lower edge of the lower instrument panel fastening surface 213, which extends in the left-right direction.

[0048] Side 219 extends forward from the right edge of the upper instrument panel fastening surface 211, the lower instrument panel fastening surface 213, the concave surface 215, and the two inclined surfaces 216, connecting the upper surface 217 and the lower surface 218 to each other. Side 219 is opposite to the pillar 300.

[0049] The extension 22 is provided at the left end of the main body 21 and abuts against the support column 300. The extension 22 includes a first extension 221, a second extension 222, and a third extension 223.

[0050] The first extension portion 221 is connected to the upper side instrument panel fastening surface 211, the lower side instrument panel fastening surface 213, the concave surface 215, and the two inclined surfaces 216, and is a plate-shaped portion extending in the vertical direction and the horizontal direction. The first extension portion 221 is provided so as not to have a step with respect to the upper side instrument panel fastening surface 211 and the lower side instrument panel fastening surface 213. Further, the first extension portion 221 is provided so as to have a step with respect to the concave surface 215 and the two inclined surfaces 216. The first extension portion 221 has an upper side extension surface 224 and a lower side extension surface 225.

[0051] The upper side extension surface 224 extends from the left side edge of the upper side instrument panel fastening surface 211 extending in the vertical direction. The upper side extension surface 224 extends in the vertical direction and the horizontal direction and has a substantially planar shape. In the present embodiment, the upper side extension surface 224 extends slightly curved toward the rear with respect to the upper side instrument panel fastening surface 211. Alternatively, the upper side extension surface 224 and the upper side instrument panel fastening surface 211 can extend on the same plane. As shown in FIG. 6, a weld portion 400 is provided at the edge of the upper side extension surface 224, which joins the extension portion 22 and the pillar 300 to each other. In the second joining member 2, the portion from the weld portion 400 of the upper side extension surface 224 to the second upper fastening hole 212 of the upper side instrument panel fastening surface 211 is a substantially planar shape. Figure 1

[0052] As shown in FIG. 7, the lower side extension surface 225 extends from the left side edge of the lower side instrument panel fastening surface 213 extending in the vertical direction. The lower side extension surface 225 extends in the vertical direction and the horizontal direction and has a substantially planar shape. In the present embodiment, the lower side extension surface 225 extends slightly curved toward the rear with respect to the lower side instrument panel fastening surface 213. Alternatively, the lower side extension surface 225 and the lower side instrument panel fastening surface 213 can extend on the same plane. As shown in FIG. 7, a weld portion 400 is provided at the edge of the lower side extension surface 225, which joins the extension portion 22 and the pillar 300 to each other. In the second joining member 2, the portion from the weld portion 400 of the lower side extension surface 225 to the second lower fastening hole 214 on the lower side instrument panel fastening surface 213 is a substantially planar shape. Figure 5 Figure 1

[0053] As shown in FIG. 8, the second extension portion 222 is connected to the upper surface 217 and the first extension portion 221, and is a plate-shaped portion extending in the vertical direction and the front-rear direction. Figure 5 The third extension portion 223 is connected to the lower surface 218 and the first extension portion 221, and is a plate-shaped portion extending in the vertical direction and the front-rear direction.

[0054] The third extension portion 223 is connected to the lower surface 218 and the first extension portion 221, and is a plate-shaped portion extending in the vertical direction and the front-rear direction.​​​

[0055] [2. Effects]

[0056] According to the above-described embodiments, the following effects can be achieved.

[0057] (2a) In the present embodiment, in a state where the first joint member 1 holds the instrument panel reinforcement 200, the distance t1 from the center axis A along the virtual line L to the virtual plane P is smaller than or equal to the radius of the circle formed by the outer peripheral surface 201 of the instrument panel reinforcement 200. A portion of the transmission path, that is, the length of the path connecting between the instrument panel reinforcement 200 and the upper side vehicle body fastening surface 111, and the length of the path connecting between the instrument panel reinforcement 200 and the lower side vehicle body fastening surface 121, through which the force transmitted from the steering device supported by the instrument panel reinforcement 200 is transmitted to the pillar 300, is easily shortened. Therefore, the rigidity of the first joint member 1 can be improved. As a result, since the structure of the first joint member 1 is easily simplified, the increase in the weight of the first joint member 1 can be suppressed.

[0058] (2b) In the present embodiment, in the second joint member 2, the portion from the welded portion 400 of the upper side extension surface 224 to the second upper fastening hole 212 of the upper side instrument panel fastening surface 211, and the portion from the welded portion 400 of the lower side extension surface 225 to the second lower fastening hole 214 of the lower side instrument panel fastening surface 213 are in a substantially planar shape. Thereby, a portion of the transmission path, that is, the length of the path connecting between the second upper fastening hole 212 of the upper side instrument panel fastening surface 211 and the pillar 300, and the length of the path connecting between the second lower fastening hole 214 of the lower side instrument panel fastening surface and the pillar 300, is easily shortened. Therefore, the rigidity of the second joint member 2 can be improved. As a result, since the structure of the second joint member 2 is easily simplified, the increase in the weight of the second joint member 2 can be suppressed.

[0059] (2c) As described above, in the present embodiment, the transmission path in each of the first joint member 1 and the second joint member 2 is easily shortened, and therefore the length of the entire transmission path via the first joint member 1 and the second joint member 2 is easily shortened. Therefore, the rigidity of the entire joint structure 100 can be improved. As a result, since the structure of the joint structure 100 is easily simplified, the increase in the weight of the joint structure 100 can be suppressed.

[0060] (2d) In the present embodiment, since the first joint member can hold the instrument panel reinforcement 200 without covering the entire outer peripheral surface 201 of the instrument panel reinforcement 200 in the peripheral direction, compared to a configuration in which the entire outer peripheral surface 201 is covered in the peripheral direction, the increase in the weight of the first joint member can be suppressed.

[0061] (2e) In the present embodiment, at least one first fastening hole 113 is located in the vicinity of the instrument panel reinforcement 200. Therefore, a part of the transmission path, that is, the length of the path connecting between the instrument panel reinforcement 200 and the first fastening hole 113 of the upper side vehicle body fastening surface 111 is easily shortened. Therefore, it is possible to improve the rigidity of the first joint member 1. Further, the length between the first upper fastening hole 113 and the first lower fastening hole 123, that is, the length of the path connecting between the first upper fastening hole 113 and the first lower fastening hole 123, is easily shortened, that is, a part of the transmission path, and thus it is possible to improve the rigidity of the first joint member 1.

[0062] (2f) In the present embodiment, the upper side fastening portion 11 having the upper side vehicle body fastening surface 111 and the lower side fastening portion 12 having the lower side vehicle body fastening surface 121 are connected to each other by the connecting portion 13, and thus it is possible to constitute the first joint member 1 by one member.

[0063] Further, in the present embodiment, the first upper fastening hole 113 and the first lower fastening hole 123 correspond to one example of the first fastening hole, and the second upper fastening hole 212 and the second lower fastening hole 214 correspond to one example of the second fastening hole.

[0064] [3. Other Embodiments]

[0065] The embodiments of the present disclosure have been described above, but the present disclosure is not limited to the above-described embodiments and can be implemented in various ways.

[0066] (3a) In the above-described embodiment, the joint structure 100 is provided at the end portion of the instrument panel reinforcement 200, but the position where the joint structure is provided is not limited to the end portion. For example, the joint structure can be provided at a position closer to the fixing member for fixing the steering device to the instrument panel reinforcement than the end portion.

[0067] (3b) In the above-described embodiment, the first joint member 1 is a structure having the connecting portion 13, but the first joint member 1 can also be a structure not having the connecting portion. For example Figure 8 As illustrated, the first joint member 1a can also have two members, that is, the upper side fastening portion 11a having the upper side vehicle body fastening surface and the lower side fastening portion 12a having the lower side vehicle body fastening surface. In this case, the instrument panel reinforcement 200 and the second joint member 2a are easily configured to be closer to each other.

[0068] (3c) In the above-described embodiment, the structure in which the joint structure 100 has the first joint member 1 and the second joint member 2 is exemplified. However, for example, the first joint member can be fastened to the pillar 300, and the second joint member can be fastened to the instrument panel reinforcement 200.

[0069] (3d) The functions of one component in the above-described embodiments can be distributed to multiple components, or the functions of multiple components can be integrated into one component. In addition, a part of the configuration of the above-described embodiments can be omitted. At least a part of the configuration of the above-described embodiments can be added to or replaced with the configuration of the other embodiments.

[0070] [4. Technical ideas disclosed in the specification]

[0071] [Item 1]

[0072] A first joining member for joining an instrument panel reinforcement to be mounted to a vehicle body of a vehicle in a state of extending in a vehicle width direction, the first joining member characterized by comprising:

[0073] an upper vehicle body fastening surface for fastening the instrument panel reinforcement to the vehicle body; and

[0074] a lower vehicle body fastening surface located below the upper vehicle body fastening surface and for fastening the instrument panel reinforcement to the vehicle body, and

[0075] the first joining member is configured to be capable of holding the instrument panel reinforcement between the upper vehicle body fastening surface and the lower vehicle body fastening surface,

[0076] a line connecting the upper vehicle body fastening surface and the lower vehicle body fastening surface as a virtual line, and passing through a center axis of the instrument panel reinforcement extending in the vehicle width direction in a state of being held by the first joining member,

[0077] a distance from the center axis along the virtual line to the virtual plane is smaller than or equal to a distance from the center axis along the virtual line to an outer peripheral surface of the instrument panel reinforcement.

[0078] [Item 2]

[0079] The first joining member according to item 1, characterized in that,

[0080] the first joining member is configured to cover a part of the outer peripheral surface in a circumferential direction around the outer peripheral surface,

[0081] at least one of the first fastening holes provided in the upper vehicle body fastening surface and the lower vehicle body fastening surface is located in the vicinity of the instrument panel reinforcement.

[0082] [Item 3]

[0083] The first joint member according to any one of items 1 to 3, wherein

[0084] The first joint member further includes a connecting portion that connects the upper side vehicle body fastening surface and the lower side vehicle body fastening surface and that holds the outer peripheral surface.

[0085] [Item 4]

[0086] A second joint member for joining a dash panel reinforcement to be installed in a vehicle to a vehicle body of the vehicle in a state of extending in a vehicle width direction, the second joint member characterized by including:

[0087] a dash panel fastening surface for fastening the dash panel reinforcement; and

[0088] an extension surface extending from an edge of the dash panel fastening surface, and

[0089] a second fastening hole is provided in the dash panel fastening surface,

[0090] a welding portion that joins the extension surface and the vehicle body to each other is provided at an edge of the extension surface,

[0091] in the second joint member, a portion from the welding portion of the extension surface to the second fastening hole of the dash panel fastening surface is formed in a substantially planar shape.

[0092] [Item 5]

[0093] A joint structure characterized by including:

[0094] the first joint member according to any one of items 1 to 3; and

[0095] the second joint member according to item 4, and

[0096] the dash panel fastening surface includes an upper side dash panel fastening surface and a lower side dash panel fastening surface located below the upper side dash panel fastening surface,

[0097] the second fastening hole is provided in each of the upper side dash panel fastening surface and the lower side dash panel fastening surface,

[0098] the extension surface includes an upper side extension surface extending from an edge of the upper side dash panel fastening surface and a lower side extension surface extending from an edge of the lower side dash panel fastening surface,

[0099] the upper side vehicle body fastening surface is fastened to the upper side dash panel fastening surface,

[0100] The lower side body fastening surface is fastened to the lower side instrument panel fastening surface.

Claims

1. A first joining member for joining an instrument panel reinforcement to be mounted on a vehicle to a vehicle body of the vehicle in a state of extending in a vehicle width direction, the first joining member characterized by comprising: an upper body fastening surface for fastening the instrument panel reinforcement to the vehicle body; a lower body fastening surface located below the upper body fastening surface and for fastening the instrument panel reinforcement to the vehicle body; and a link portion for connecting the upper body fastening surface and the lower body fastening surface and for holding an outer peripheral surface of the instrument panel reinforcement; and wherein two upper side walls extending substantially perpendicularly with respect to the upper body fastening surface are provided at edges of the upper body fastening surface in the vehicle width direction, respectively; two lower side walls extending substantially perpendicularly with respect to the lower body fastening surface are provided at edges of the lower body fastening surface in the vehicle width direction, respectively; the first joining member is configured to be capable of holding the instrument panel reinforcement between the upper body fastening surface and the lower body fastening surface, a line orthogonal to a virtual plane connecting the upper body fastening surface and the lower body fastening surface and passing through a center axis of the instrument panel reinforcement extending in the vehicle width direction in a state of being held by the first joining member is set as a virtual line, a distance from the center axis along the virtual line to the virtual plane is smaller than or equal to a distance from the center axis along the virtual line to an outer peripheral surface of the instrument panel reinforcement; the link portion has two cutouts arranged in a circumferential direction of the instrument panel reinforcement at edges in the vehicle width direction; and a length of the link portion in the vehicle width direction is longer than a distance between the two upper side walls and a distance between the two lower side walls.

2. The first joining member according to claim 1, wherein the first joining member is configured to cover a part of the outer peripheral surface in a circumferential direction thereof, and at least one of first fastening holes provided in the upper body fastening surface and the lower body fastening surface is located in the vicinity of the instrument panel reinforcement.

3. A second joining member for joining an instrument panel reinforcement to be mounted on a vehicle to a vehicle body of the vehicle in a state of extending in a vehicle width direction by the first joining member according to claim 1, the second joining member characterized by comprising: an instrument panel fastening surface for fastening the instrument panel reinforcement; and an extension surface extending from an edge of the instrument panel fastening surface, and wherein a second fastening hole is provided in the instrument panel fastening surface, a welding portion joining the extension surface and the vehicle body to each other is provided at an edge of the extension surface, and a portion from the welding portion of the extension surface to the second fastening hole of the instrument panel fastening surface is formed in a substantially planar shape in the second joining member.

4. An instrument panel reinforcement joining structure comprising: the first joining member according to claim 1 or 2; and the second joining member according to claim 3. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 4. A bonded structure, comprising: ​ ​ ​ The instrument panel fastening surface has an upper instrument panel fastening surface and a lower instrument panel fastening surface located below the upper instrument panel fastening surface, The second fastening hole is provided in the upper instrument panel fastening surface and the lower instrument panel fastening surface, respectively, The extension surface has an upper extension surface extending from the edge of the upper instrument panel fastening surface and a lower extension surface extending from the edge of the lower instrument panel fastening surface, The upper vehicle body fastening surface is fastened to the upper instrument panel fastening surface, The lower vehicle body fastening surface is fastened to the lower instrument panel fastening surface.

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