JP2017006975A - Joint body and vehicle front pillar assembly having the joint body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joint body and a front pillar assembly for a vehicle, capable of efficiently enhancing joint strength and being made easily.SOLUTION: The invention relates to a joint body made of two members joined by welding at a joint area. The joint body has a first and second protruding parts respectively crossing a first and second imaginary lines at a tip part. The first and second imaginary lines are straight lines extending separately from the weld part toward the tip part through a first and second ends of the weld part in a longitudinal direction, while inclined at 40° to 50° with respect to the width direction. The invention also relates to a front pillar assembly for a vehicle having the joint body.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a joined body in which joining regions of two members are overlapped and joined using a welded portion formed by welding. Furthermore, the present invention relates to a vehicle front pillar assembly having such a joined body.

  In industrial products and the like, a joined body in which two members, particularly, two metal plate members are joined by welding is widely used. In many cases, flanges are formed in the joined body as joining regions extending along the peripheral region of each member, and these flanges are joined to each other using welded portions formed by welding in a state of being overlapped with each other. Yes.

  Such a joined body is required to increase the joining strength, particularly the strength of the joining region such as the flange. For this reason, various joints have been proposed to increase the joint strength. As an example of such a joint, a plurality of welds formed by spot welding and spaced apart in the longitudinal direction of the flange overlapped. In the joined body that joins the flanges of the two members with the adhesive applied to the contact surface of the flange in the state, the front end of the flange is a part corresponding to the welded part in the longitudinal direction (hereinafter referred to as “welding corresponding part”) In the shape of an arc protruding in the direction from the base end of the flange toward the tip, and in the shape of an arc recessed in the direction from the tip of the flange toward the base end at the portion between adjacent welding-corresponding portions. There has been proposed a joined body in which the front end of the flange is formed into a wave shape. (For example, see Patent Document 1.)

JP2013-24296A

  However, in the example of the joined body, the tip of the flange is formed into a wave shape composed of a plurality of continuous arc shapes, and as a result, the adhesive can only be applied to the entire contact surface of the flange. The bonding strength cannot be sufficiently increased. In particular, since the flange is formed so as to be sharply bundled over the entire longitudinal direction at a portion between adjacent weld corresponding portions, the strength of the flange is low at a portion between adjacent weld corresponding portions. Moreover, it is difficult to form the tip of the joining region into a wave shape composed of a plurality of continuous arcs, and it is difficult to produce a joined body. These are problems.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a bonded body that can efficiently increase the bonding strength and can be easily manufactured. Another object of the present invention is to provide a vehicle front pillar assembly that can efficiently increase the bonding strength and can be easily manufactured.

  In order to solve the problem, according to the joined body according to the first and second aspects of the present invention, two members are provided, and each of the two members includes a joining region extending along a peripheral region thereof. And a joining body in which joining regions of the two members are arranged to be overlapped and joined using a welded portion formed by welding, wherein the joining region is perpendicular to the longitudinal direction. A tip portion located on one side of the welding portion, and the tip portion is one protruding portion that intersects the imaginary line, and the one imaginary line passes through one end portion in the longitudinal direction of the welded portion. Defined as a straight line that extends from the longitudinal direction toward the tip while extending at an inclination angle of 40 ° or more and 50 ° or less with respect to the width direction. A protrusion, said The other imaginary line passes through the other end portion in the longitudinal direction of the welded portion and moves away from the welded portion in the longitudinal direction toward the tip portion and at an inclination angle of 40 ° or more and 50 ° or less with respect to the width direction. The other protrusion defined as a straight line extending, the one outer part adjacent to the one protrusion in the longitudinal direction, and the other outer part adjacent to the other in the longitudinal direction relative to the other protrusion. , One inner portion adjacent to the other one in the longitudinal direction with respect to the one protrusion, and the other inner portion adjacent to one in the longitudinal direction with respect to the other protrusion, and the one protrusion is the one outer And the other projecting portion is formed so as to project in one of the width direction with respect to the other outer portion and the other inner portion. In such a configuration, when a load from the other side in the width direction is applied to the joining region, distortion tends to increase at the tip portion and one intersecting portion of the one imaginary line and at the tip portion and the other intersecting portion of the other imaginary line. It is in. On the other hand, since one and the other protrusions are formed at the one and the other intersections, respectively, the distortion at the one and the other intersections can be reduced. As a result, it can prevent that a fracture | rupture generate | occur | produces from one and the other crossing part. Therefore, the joint strength of the joined body can be efficiently increased. Moreover, since the front-end | tip part of a joining area | region can be formed in the simple shape which protruded one and the other protrusion part, a joined_body | zygote can be produced easily.

  According to the joined body according to the first aspect of the present invention, the one and other inner portions are connected in the longitudinal direction. Therefore, since the tip part of the joining region can be formed in a simple shape projecting within a limited range such as one and the other projecting part, the joined body can be easily manufactured.

  According to the joined body according to the second aspect of the present invention, the tip portion is a central projecting portion that intersects the central imaginary line between the one and the other inner side, and the central imaginary line is the welded portion. The central protrusion is further defined as a straight line extending in the width direction through the center in the longitudinal direction, and the intermediate protrusion is formed to protrude in one of the width directions with respect to the one and the other inner side. ing. For such a configuration, when a load from the other side in the width direction is applied to the joining region, the strain tends to increase at the tip portion and the central intersection of the center imaginary line in addition to the one and the other intersection. is there. On the other hand, since the intermediate protrusion is formed at the intermediate intersection, it is possible to reduce the distortion of the intermediate intersection and thus prevent the breakage from occurring at the intermediate intersection. Therefore, the joint strength of the joined body can be efficiently increased. Moreover, since the front-end | tip part of a joining area | region can be formed in the simple shape protruded in the limited range like one side, the other, and an intermediate | middle protrusion part, a conjugate | zygote can be produced easily.

  According to the joined body according to the first and second aspects of the present invention, (A) the one and other outer portions may be formed so as to extend along the longitudinal direction. About this structure, since one and the other outer side part are formed without being tightly bound, the intensity | strength around one and the other protrusion part can fully be maintained. Therefore, the joint strength of the joined body can be efficiently increased. Furthermore, since the shape of the one outer side and the other outer side formed along the longitudinal direction is simple, the joined body can be easily manufactured.

  According to the joined body according to the first and second aspects of the present invention, instead of the joined body according to the above (A), (B) the tip portion is one of the longitudinal directions with respect to the one outer portion. One peripheral part adjacent to the other outer part and the other peripheral part adjacent to the other in the longitudinal direction with respect to the other outer part, and the one peripheral part protrudes to one side in the width direction with respect to the one outer part. The other peripheral portion may be formed so as to protrude to one side in the width direction with respect to the other outer side portion. About this structure, since the front-end | tip part is bundled in the limited range like one side and the other outer side part, the intensity | strength of one side and the other protrusion part periphery can fully be maintained. Furthermore, since the tip end portion can be bound within a limited range as described above, the range in which the material is processed to form such a constricted shape can be reduced. Therefore, the joined body can be easily manufactured.

  According to the joined body according to the third aspect of the present invention, two members are provided, each of the two members includes a joining region extending along a peripheral region thereof, and the joining region of the two members is A joined body that is arranged in an overlapping manner and joined using a welded portion formed by welding, wherein the joining region is located at one end in the width direction perpendicular to the longitudinal direction of the joining region The tip portion is one projecting portion that intersects one imaginary line, and the one imaginary line passes through one end in the longitudinal direction of the welded portion while leaving the welded portion in the longitudinal direction. Defined as a straight line toward the tip and extending at an inclination angle of 40 ° or more and 50 ° or less with respect to the width direction, one protrusion and the other protrusion intersecting with the other virtual line, The other virtual line is the weld It is defined as a straight line that passes through the other end in the longitudinal direction of the part and extends from the welded part in the longitudinal direction toward the tip part and at an inclination angle of 40 ° or more and 50 ° or less with respect to the width direction. A central protrusion that intersects the central imaginary line, wherein the central imaginary line is defined as a straight line extending in the width direction through the longitudinal center of the welded portion. And one outer portion adjacent to the one protrusion in the longitudinal direction and the other outer portion adjacent to the other protrusion in the longitudinal direction, and the one protrusion is the one The other protruding portion is formed to protrude in one of the width directions with respect to the other outer portion, and the central protruding portion is formed of the one and the other protruding portions. Connected longitudinally, or One of the central protrusions is formed so as to protrude in one of the width directions so that the protrusion amount is equal to or greater than the protrusion amount of the one and other protrusions, and the one and other outer portions are formed to extend along the longitudinal direction. ing. In such a configuration, when a load from the other side in the width direction is applied to the joining region, one end of the tip portion and one imaginary line, the other intersection of the tip portion and the other imaginary line, and the tip portion and the center imaginary The strain tends to increase at the central intersection of the lines. On the other hand, one, the other, and the middle intersection are formed with the one, the other, and the middle protrusion, respectively, and the one, the other, and the central protrusion are connected to each other in the longitudinal direction. On the other hand, it is possible to reduce the strain at the intermediate crossing portion, and consequently, it is possible to prevent the breakage from starting from the one, the other, and the intermediate crossing portion. Further, since the one and other outer portions are formed without being sharply constricted, the strength around the one and the other protruding portions can be sufficiently maintained. Therefore, the joint strength of the joined body can be efficiently increased. Furthermore, the front end portion of the joining region can be formed into a simple shape that protrudes within a limited range such as one, the other, and the intermediate protruding portion, and the one and the other outside formed along the longitudinal direction. Since the shape of the part is simple, the joined body can be easily manufactured.

  According to the joined body according to the fourth aspect of the present invention, two members are provided, each of the two members includes a joining region extending along a peripheral region thereof, and the joining region of the two members is A joined body that is arranged in an overlapping manner and joined using a welded portion formed by welding, wherein the joining region is located at one end in the width direction perpendicular to the longitudinal direction of the joining region The tip portion is one projecting portion that intersects one imaginary line, and the one imaginary line passes through one end in the longitudinal direction of the welded portion while leaving the welded portion in the longitudinal direction. Defined as a straight line toward the tip and extending at an inclination angle of 40 ° or more and 50 ° or less with respect to the width direction, one protrusion and the other protrusion intersecting with the other virtual line, The other virtual line is the weld It is defined as a straight line that passes through the other end in the longitudinal direction of the part and extends from the welded part in the longitudinal direction toward the tip part and at an inclination angle of 40 ° or more and 50 ° or less with respect to the width direction. A central protrusion that intersects the central imaginary line, wherein the central imaginary line is defined as a straight line extending in the width direction through the longitudinal center of the welded portion. A first outer portion adjacent to one longitudinal direction with respect to the one protruding portion, a second outer portion adjacent to the other longitudinal portion with respect to the other protruding portion, and a longitudinal direction with respect to the first outer portion. One peripheral part adjacent to one side and the other peripheral part adjacent to the other in the longitudinal direction with respect to the other outer side part, and the one projecting part and the peripheral part are one side in the width direction with respect to the one outer side part Protruding and formed in front The other protruding portion and the peripheral portion are formed to protrude in one of the width directions with respect to the other outer portion, the central protruding portion connects the one and other protruding portions in the longitudinal direction, and the central protruding portion The protrusion is formed so as to protrude to one side in the width direction so that the protrusion amount is equal to or greater than the protrusion amount of the one and other protrusions. In such a configuration, when a load from the other side in the width direction is applied to the joining region, one end of the tip portion and one imaginary line, the other intersection of the tip portion and the other imaginary line, and the tip portion and the center imaginary The strain tends to increase at the central intersection of the lines. On the other hand, one, the other, and the middle intersection are formed with the one, the other, and the middle protrusion, respectively, and the one, the other, and the central protrusion are connected to each other in the longitudinal direction. On the other hand, it is possible to reduce the strain at the intermediate crossing portion, and consequently, it is possible to prevent the breakage from starting from the one, the other, and the intermediate crossing portion. In addition, since the tip portion can be confined within a limited range such as the one and other outer portions, the strength around the one and other protrusions can be sufficiently maintained. Therefore, the joint strength of the joined body can be efficiently increased. Furthermore, in order to form a constricted shape such as one and the other outer side, the tip of the joining region can be formed in a simple shape protruding in a limited range such as one, the other, and the intermediate protrusion. Since the range in which the material is processed can be reduced, the joined body can be easily manufactured.

  According to the joined body according to (B) of the first and second aspects and the joined body according to the fourth aspect, the joining region is at a longitudinal position corresponding to at least one of the one and the other peripheral parts. It is preferable to have the maximum width. For such a configuration, processing of the material to form at least one of the one and other peripheral portions can be omitted or the range of such processing can be efficiently reduced. Therefore, the joined body can be easily manufactured.

  According to the joined body according to the first to fourth aspects, it is preferable that the welded portion is formed by spot welding. About this structure, since the spot welding which can make distortion of this welding part small is used in order to form a welding part, the intensity | strength of a welding part can be raised efficiently. Therefore, the joint strength of the joined body can be efficiently increased.

  According to the vehicle front pillar assembly according to the fifth aspect, the vehicle front pillar assembly is provided on the side of the vehicle body in the vehicle width direction, and according to any one of the first to fourth aspects. A first member that includes a joined body and that is one of the two members is disposed along a vehicle vertical direction, and a second member that is another one of the two members is the first member. Is arranged along the vehicle vertical direction on the center side in the vehicle width direction with respect to the member, and the joining region of the first and second members is located at the rear end portion of the joined body in the vehicle front-rear direction. A frame member is attached to a front end portion of the joined body in the vehicle front-rear direction, and a height of the attachment portion of the joined body and the frame member corresponds to a height of the welded portion in the vehicle vertical direction. Therefore, the joint strength of the joined body in the vehicle front pillar assembly can be efficiently increased with respect to the load applied from the frame member. Further, since the above-described joined body is used for the vehicle front pillar assembly, the vehicle front pillar assembly can also be easily manufactured.

  The joined body according to the first to fourth aspects of the present invention can efficiently increase the joining strength and can be easily manufactured. The vehicle front pillar assembly according to the fifth aspect of the present invention can efficiently increase the bonding strength and can be easily manufactured.

1 is a perspective view schematically showing a joined body according to a first embodiment of the present invention. It is a front view showing roughly the joined object concerning a 1st embodiment of the present invention. It is a front view which shows roughly the conjugate | zygote concerning 2nd Embodiment of this invention. It is a front view which shows roughly the conjugate | zygote concerning 3rd Embodiment of this invention. It is a front view which shows roughly the conjugate | zygote concerning 4th Embodiment of this invention. It is a front view which shows roughly the conjugate | zygote concerning 5th Embodiment of this invention. It is a front view which shows roughly the conjugate | zygote concerning 6th Embodiment of this invention. FIG. 10 is a perspective view schematically showing a vehicle body including a front pillar assembly according to a seventh embodiment of the present invention. It is a perspective view which shows roughly the front pillar assembly which concerns on 7th Embodiment of this invention, and its peripheral part. FIG. 10 is a perspective view schematically showing the front pillar assembly of FIG. 9 and its peripheral portion with the side outer panel removed. FIG. 10 is a perspective view schematically showing the front pillar assembly and its peripheral part in FIG. 9 with the side outer panel and the hinge reinforcement removed. It is an AA line expanded sectional view of FIG. It is a perspective view for demonstrating the bending test of an Example. It is a front view which shows roughly the conjugate | zygote used in an Example. It is a strain distribution figure of the flange of the joined body at the time of the bending test of an Example. It is a front view which shows roughly the conjugate | zygote used in a comparative example. It is a distortion distribution figure of the flange of the joined body at the time of the bending test of a comparative example.

[First Embodiment]
The joined body according to the first embodiment of the present invention will be described. In addition, the joined body which concerns on this embodiment is applicable as structures, such as an industrial product. As shown in FIG. 1, the joined body according to the present embodiment includes first and second members 11 and 12 as two members to be joined to each other. The first and second members 11 and 12 are made of the same kind of metal material.

  The 1st and 2nd members 11 and 12 have the substantially plate-shaped flanges 13 and 14 as a joining area | region extended along the peripheral area | regions 11a and 12a, respectively. Here, the peripheral regions 11a and 12a are formed so as to extend in a substantially linear shape, and the flanges 13 and 14 also extend in a substantially linear shape corresponding to the peripheral regions 11a and 12a.

  The flanges 13 and 14 are formed by bending the constituent materials of the first and second members 11 and 12, and rise from the peripheral regions 11a and 12a. Therefore, the tip portions 15 and 16 of the flanges 13 and 14 are formed so as to terminate at one side in the width direction orthogonal to the longitudinal direction of the flanges 13 and 14. On the other hand, the base end portions 17 and 18 of the flanges 13 and 14 are located on the other side in the width direction, and these base end portions 17 and 18 are connected to the peripheral regions 11a and 12a, respectively.

  Such flanges 13 and 14 are joined using a plurality of welded portions 19 formed by welding in a state where the flanges 13 and 14 overlap each other in the thickness direction of the flanges 13 and 14. In a state in which the flanges 13 and 14 are joined to each other (hereinafter referred to as “joined state”), the peripheral regions 11 a and 12 a of the first and second members 11 and 12 start from the flanges 13 and 14. , 14 are arranged to face the opposite side of the overlapping direction. In the joined state, it is preferable that the end portions 15 and 16 of the flanges 13 and 14 of the first and second members 11 and 12 are arranged so as to substantially coincide with each other. It is preferred that they are substantially symmetrical with respect to each other in the direction.

  However, the present invention is not limited to this, and the joined body may be configured as follows. The joined body only needs to have two or more members to be joined to each other. For example, the joined body has three members to be joined to each other as the first and second members, and the first and second members. You may have the 3rd member located between these members. In this case, it is preferable that the joining regions of the first, second, and third members are arranged so as to overlap each other, and three pieces are joined using a welded portion. At least one member of the two or more members may be made of a material different from the other members. The peripheral region in two or more members may be formed so as to extend in a substantially arc shape, and the joining region may also be formed so as to extend in a substantially arc shape corresponding to the peripheral region. At least one member of the two or more members may be formed such that the surface of the joining region extends in the same direction as the surface of the peripheral region without being bent. In the joined state, the peripheral region of at least one member of the two or more members faces either the same side or the opposite side of the overlapping direction starting from the joint region with respect to the peripheral region of the other members. May be arranged as follows. The joining area | region in two or more members may be joined using the some welding part arrange | positioned at intervals in a longitudinal direction. Moreover, the joining area | region which mutually overlapped may be joined using an adhesive agent in addition to a welding part.

  Next, details of the flanges 13 and 14 will be described. In FIG. 2 referred to in the description, the first member 11 is shown, while the second member 12 is hidden by the first member 11. However, since the flanges 13 and 14 of the first and second members 11 and 12 are substantially symmetric in the overlapping direction with respect to each other, in FIG. In addition, the reference numerals of the constituent elements of the first member 11 corresponding to the first member 11 are shown in parallel with the parentheses. Reference numerals in FIGS. 3 to 7, 14, and 16 referred to in the following description are also indicated in the same manner as the reference numerals in FIG. 2.

  As shown in FIG. 2, the tip portions 15 and 16 of the flanges 13 and 14 have one projecting portions 15a and 16a that intersect one virtual line L1 and L2 (indicated by a two-dot chain line) and the other virtual line M1 and M2 ( And other projecting portions 15b and 16b intersecting with each other. The one imaginary lines L1 and L2 pass through one end 19a in the longitudinal direction of the welded part 19 toward the tip parts 15 and 16 while leaving the welded part 19 in the longitudinal direction, and the center imaginary lines N1, N2 (two Defined by a straight line extending at a predetermined inclination angle θ1, θ2. The other imaginary lines M1 and M2 pass through the other end 19b in the longitudinal direction of the welded portion 19 toward the distal end portions 15 and 16 while leaving the welded portion 19 in the longitudinal direction, and are predetermined with respect to the center imaginary lines N1 and N2. Are defined as straight lines extending at inclination angles φ1 and φ2. The central imaginary lines N1 and N2 are defined as straight lines extending in the width direction through the center in the longitudinal direction of the welded portion 19. Such inclination angles θ1, θ2, φ1, and φ2 are preferably about 45 °, but in consideration of dimensional errors, distortion distribution errors, and the like, the inclination angles θ1, θ2, φ1, and φ2 are about 40 ° or more and about It may be within a range of 50 ° or less.

  The front end portions 15 and 16 of the flanges 13 and 14 have one outer side portions 15c and 16c located on one side in the longitudinal direction with respect to the one projecting portions 15a and 16a, and the other side in the longitudinal direction with respect to the other projecting portions 15b and 16b. And the other outer side portions 15d and 16d. Further, the tip end portions 15 and 16 are located on the other side in the longitudinal direction with respect to the one projecting portions 15a and 16a, and on the other side in the longitudinal direction with respect to the other projecting portions 15b and 16b. It has inner side parts 15f and 16f.

  In such flanges 13 and 14, the one projecting portions 15a and 16a project to one side in the width direction with respect to the one outer portion 15c and 16c and the one inner portion 15e and 16e. The other protruding portions 15b and 16b also protrude in one of the width directions with respect to the other outer portions 15d and 16d and the other inner portions 15f and 16f. On the other hand, the protruding portions 15a and 16a and the other protruding portions 15b and 16b are formed in a substantially arc shape. On the other hand, the inner side portions 15e, 16e and the other inner side portions 15f, 16f are connected in the longitudinal direction.

  On the other hand, the outer portions 15c, 16c and the other outer portions 15d, 16d are formed so as to extend along the longitudinal direction, and specifically, are formed so as to extend in a substantially linear shape. The inner side portions 15e and 16e and the other inner side portions 15f and 16f are also preferably formed so as to extend along the longitudinal direction, and specifically, preferably formed so as to extend in a substantially linear shape.

  Although it is only an example to the last, the distance p1 in the width direction between the largest convex part of one protrusion part 15a, 16a and the largest recessed part of one outer side part 15c, 16c exists in the range of about 1.5 mm or more and about 2.0 mm or less. Preferably, the distance p2 in the width direction between the maximum convex part of the other protrusions 15b and 16b and the maximum concave part of the other outer part 15d and 16d is also preferably in the range of about 1.5 mm or more and about 2.0 mm or less. .

  However, the present invention is not limited to this, and the flange may be configured as follows. One and the other protrusions may be formed only on one flange of the first and second members. At least one of the one and other protrusions of the flange may be formed in a shape other than a substantially arc shape, and may be formed in, for example, a substantially triangular shape, a substantially rectangular shape, or the like. When the flange is formed so as to extend in a substantially arc shape, it is preferable that one and the other outer side portions are formed so as to extend in a substantially arc shape along the longitudinal direction. Furthermore, it is preferable that the inner portion is formed so as to extend in a substantially arc shape along the longitudinal direction.

  Details of the welded portion 19 will be described. As shown in FIG. 2, the welded portion 19 is formed by spot welding, and is formed in a substantially circular shape on the surfaces of the flanges 13 and 14. Although it is only an example to the last, when another welding part is formed at intervals in at least one of the both sides in the longitudinal direction with respect to the welding part 19, the longitudinal interval between the welding part 19 and another welding part is It is preferable that the distance in the longitudinal direction between the portion 19 and one or the other crossing portion is twice or more.

  However, the present invention is not limited to this, and the welded portion may be configured as follows. The welded portion may be formed by welding other than spot welding. Examples of welding other than spot welding include gas welding, arc welding, electroslag welding, electron beam welding, laser beam welding and other fusion welding, friction stir welding, and the like. Furthermore, among the welding other than spot welding, examples of resistance welding include seam welding, pulsation welding, projection welding, and high-frequency resistance welding. Depending on the type of welding, the welded portion may be formed in a shape other than a substantially circular shape on the surface of the joining region, for example, may be formed in a substantially elliptical shape, a substantially elongated shape, or the like. .

  The effect obtained in the joined body according to the present embodiment will be described. In the joined body according to the present embodiment, as shown in FIG. 2, the longitudinal direction of the base end portions 17 and 18 of the flanges 13 and 14 is directed to the position corresponding to the welded portion 19 from the other in the width direction. When the load F is applied, the distortion tends to increase at one end of the tip portions 15 and 16 and one of the virtual lines L1 and L2 and at the other intersection of the tip portions 15 and 16 and the other virtual lines M1 and M2. . On the other hand, since one protrusion part 15a, 16a and the other protrusion part 15b, 16b are formed in the one intersection part and the other intersection part, respectively, the distortion of the one and other intersection part can be reduced. As a result, it can prevent that a fracture | rupture generate | occur | produces from one and the other crossing part. Therefore, the joint strength of the joined body can be efficiently increased. Furthermore, since the front end portions 15 and 16 of the flanges 13 and 14 can be formed in a simple shape that protrudes within a limited range such as the one projecting portions 15a and 16a and the other projecting portions 15b and 16b, the joined body is easy. Can be produced.

  In the joined body according to the present embodiment, the one outer portions 15c and 16c and the other outer portions 15d and 16d formed along the longitudinal direction are formed without being sharply constricted, so that the one projecting portions 15a and 16a and the other projecting portion are formed. The strength around the portions 15b and 16b can be sufficiently maintained. Therefore, the joint strength of the joined body can be efficiently increased. Moreover, since the shape of the one outer side portions 15c and 16c and the other outer side portions 15d and 16d formed along the longitudinal direction is simple, the joined body can be easily manufactured.

  In the joined body according to the present embodiment, spot welding is used to reduce the distortion of the welded portion 19 in order to form the welded portion 19, so that the strength of the welded portion 19 is efficiently increased. be able to. Therefore, the joint strength of the joined body can be efficiently increased.

[Second Embodiment]
A joined body according to a second embodiment of the present invention will be described. As shown in FIG. 3, the first and second members 21 and 22 in the joined body according to the present embodiment correspond to the first and second members 11 and 12 in the first embodiment, respectively. The flanges 23 and 24 of the first and second members 21 and 22 correspond to the flanges 13 and 14 of the first and second members 11 and 12 in the first embodiment, respectively.

  The tip portions 25 and 26 of the flanges 23 and 24 are formed so as to terminate at one side in the width direction of the flanges 23 and 24 as in the first embodiment. Similar to the first embodiment, the base end portions 27 and 28 of the flanges 23 and 24 are located on the other side in the width direction of the flanges 23 and 24, and the peripheral regions 21a and 21a of the first and second members 21 and 22, respectively. 22a. Such flanges 23 and 24 are joined using a welded portion 29 similar to that of the first embodiment in a state in which the flanges 43 and 44 overlap each other in the thickness direction of the flanges 43 and 44.

  In the flanges 23 and 24, as in the first embodiment, one virtual lines L1 and L2, the other virtual lines M1 and M2, and central virtual lines N1 and N2 are defined. The front end portions 25 and 26 of the flanges 23 and 24 have the same one protruding portions 25a and 26a and the other protruding portions 25b and 26b as in the first embodiment. Further, the tip portions 25 and 26 have one outer side portions 25c and 26c positioned on one side in the longitudinal direction with respect to the one protruding portions 25a and 26a, and the other side positioned on the other side in the longitudinal direction with respect to the other protruding portions 25b and 26b. It has outer portions 25d and 26d. The tip portions 25 and 26 have the same inner side portions 25e and 26e and the other inner side portions 25f and 26f as in the first embodiment.

  The tip portions 25 and 26 are one peripheral portions 25g and 26g located on one side in the longitudinal direction with respect to the one outer side portions 25c and 26c, and the other side located on the other side in the longitudinal direction with respect to the other outer side portions 25d and 26d. It has peripheral portions 25h and 26h. On the other hand, the protruding portions 25a and 26a and the one peripheral portion 25g and 26g are formed so as to protrude to one side in the width direction with respect to the one outer side portions 25c and 26c. The other protruding portions 25b and 26b and the other peripheral portions 25h and 26h are formed so as to protrude in one of the width directions with respect to the other outer portions 25d and 26d.

  On the other hand, the outer side portions 25c and 26c and the other outer side portions 25d and 26d are formed so as to be curved from one side to the other side in the width direction, and specifically, are formed in a substantially arc shape. The flanges 23 and 24 have a maximum width at positions in the longitudinal direction corresponding to the one protruding portions 25a and 26a, the other protruding portions 25d and 26d, the one peripheral portions 25g and 26g, and the other peripheral portions 25h and 26h. .

  Although it is only an example, the distance q1 in the width direction between the maximum convex portion of the one projecting portion 25a, 26a and the maximum concave portion of the one outer side portion 25c, 26c is in the range of about 1.5 mm or more and about 2.0 mm or less. Preferably, the distance q2 in the width direction between the maximum convex portion of the other protruding portions 25b and 26b and the maximum concave portion of the other outer portions 25d and 26d is also preferably in the range of about 1.5 mm or more and about 2.0 mm or less. . Under such conditions, the one outer side portions 25c, 26c and the other outer side portions 25d, 26d are preferably formed in a substantially arc shape having a radius of about 100 mm or more.

  However, the present invention is not limited to this, and one and other outer portions of the flange and one and the other peripheral portions may be configured as follows. At least one of the one and other outer portions may be formed in a shape other than a substantially arc shape, for example, may be formed in a substantially triangular shape or a substantially square shape. At least one of the one and other peripheral portions may protrude most in one of the width directions, and the flange may have a maximum width at a longitudinal position corresponding to at least one of the one and other peripheral portions. One and the other peripheral portions may be provided only on one flange of the first and second members.

  The effects obtained in the joined body according to the present embodiment are basically the same as those in the first embodiment, but the effects differ in the following points. In the joined body according to the present embodiment, the tip portions 25 and 26 of the flanges 23 and 24 are confined within a limited range such as the one outer side portions 25c and 26c and the other outer side portions 25d and 26d. The strength around 25a, 26a and the other protrusions 25b, 26b can be sufficiently maintained. Therefore, the joint strength of the joined body can be efficiently increased. Further, as described above, the tip portions 25 and 26 of the flanges 23 and 24 are confined within a limited range, so that the range of processing the material to form such a constricted shape can be reduced. Therefore, the joined body can be easily manufactured.

  In the joined body according to the present embodiment, the flanges 23 and 24 are in the longitudinal direction corresponding to the one projecting portions 25a and 26a, the other projecting portions 25d and 26d, the one peripheral portions 25g and 26g, and the other peripheral portions 25h and 26h. Since it has the maximum width at the position, it is necessary to process the material to form one projecting portion 25a, 26a, the other projecting portion 23d, 24d, one peripheral portion 25g, 26g, and the other peripheral portion 25h, 26h. It can be omitted or the range of such processing can be effectively reduced. Therefore, the joined body can be easily manufactured.

[Third Embodiment]
A joined body according to a third embodiment of the present invention will be described. As shown in FIG. 4, the first and second members 31 and 32 in the joined body according to the present embodiment correspond to the first and second members 11 and 12 in the first embodiment, respectively. The flanges 33 and 34 of the first and second members 31 and 32 correspond to the flanges 13 and 14 of the first and second members 11 and 12 in the first embodiment, respectively.

  The tip portions 35 and 36 of the flanges 33 and 34 are formed so as to terminate at one side in the width direction of the flanges 33 and 34 as in the first embodiment. Similar to the first embodiment, the base end portions 37 and 38 of the flanges 33 and 34 are located on the other side in the width direction of the flanges 33 and 34, and the peripheral regions 31 a and 31 a of the first and second members 31 and 32. 32a. Such flanges 33 and 34 are joined using a welded portion 39 similar to that of the first embodiment in a state where the flanges 33 and 34 overlap each other in the thickness direction of the flanges 33 and 34.

  In the flanges 33 and 34, as in the first embodiment, one virtual lines L1 and L2, the other virtual lines M1 and M2, and central virtual lines N1 and N2 are defined. The front end portions 35 and 36 of the flanges 33 and 34 have the same one projecting portions 35a and 36a, the other projecting portions 35b and 36b, the one outer portions 35c and 36c, and the other outer portions 35d and 36d as in the first embodiment. ing. The tip portions 35 and 36 have center protrusions 35e and 36e that intersect the center virtual lines N1 and N2.

  The tip portions 35 and 36 are positioned between the one inner side portions 35f and 36f located between the one protruding portions 35a and 36a and the central protruding portions 35e and 36e, and between the other protruding portions 35b and 36b and the central protruding portions 35e and 36e. The other inner portion 35g, 36g. In other words, the one inner side part 35f, 36f is located on the other side in the longitudinal direction with respect to the one projection part 35a, 36a, and the other inner side part 35g, 36g is located on one side in the longitudinal direction with respect to the other projection part 35b, 36b. doing.

  In such flanges 33 and 34, the one projecting portions 35a and 36a and the central projecting portions 35e and 36e project to one side in the width direction with respect to the one inner portions 35f and 36f. The other protruding portions 35b and 36b and the central protruding portions 35e and 36e protrude in one of the width directions with respect to the other inner portions 35g and 36g. The central protrusions 35e and 36e are formed in a substantially arc shape. The inner side portions 35f, 36f and the other inner side portions 35g, 36g are preferably formed so as to extend along the longitudinal direction, and specifically, preferably formed so as to extend in a substantially linear shape.

  Although it is only an example, the distance r1 in the width direction between the maximum convex portion of the one projecting portion 35a, 36a and the maximum concave portion of the one outer side portion 35c, 36c is in the range of about 1.5 mm or more and about 2.0 mm or less. Preferably, the distance r2 in the width direction between the maximum convex portion of the other protruding portions 35b and 36b and the maximum concave portion of the other outer side portions 35d and 36d is also in the range of about 1.5 mm or more and about 2.0 mm or less. . In addition, the distance r3 in the width direction between the maximum convex portion of the central projecting portions 35e and 36e and the maximum concave portion of the one inner side portion 35f and 36f is preferably in the range of about 1.5 mm or more and about 2.0 mm or less. It is preferable that the distance r4 in the width direction between the maximum convex portion of the projecting portions 35e and 36e and the maximum concave portion of the other inner side portions 35g and 36g is also in the range of about 1.5 mm or more and about 2.0 mm or less.

  However, this invention is not limited to this, The center protrusion part of a flange and one and the other inner side part may be comprised as follows. The central protrusion may be formed only on one of the first and second members. The central projecting portion of the flange may be formed in a shape other than a substantially arc shape, and may be formed in, for example, a substantially triangular shape, a substantially rectangular shape, or the like. In the case where the flange is formed so as to extend in a substantially arc shape, it is preferable that the one and other inner portions are formed so as to extend in a substantially arc shape along the longitudinal direction.

  The effects obtained in the joined body according to the present embodiment are basically the same as those in the first embodiment, but the effects differ in the following points. In the joined body according to the present embodiment, as shown in FIG. 4, the longitudinal direction of the base end portions 37 and 38 of the flanges 33 and 34 is directed to the position corresponding to the welded portion 39 from the other in the width direction. When the load F is applied, the tip portions 35 and 36 and the one intersecting portion of the one virtual lines L1 and L2, the tip portions 35 and 36 and the other intersecting portion of the other virtual lines M1 and M2, and the tip portions 35 and 36 and the central virtual portion The strain tends to increase at the central intersection of the lines N1 and N2. On the other hand, one projecting portion 35a, 36a, the other projecting portion 35b, 36b, and the center projecting portion 35e, 36e are formed at the one intersecting portion, the other intersecting portion, and the center intersecting portion, respectively. In addition, the strain at the central intersection can be reduced, and as a result, it is possible to prevent breakage from occurring on the other hand and the intermediate intersection. Therefore, the joint strength of the joined body can be efficiently increased. Furthermore, the front end portions 35 and 36 of the flanges 33 and 34 have a simple shape that protrudes within a limited range such as the one projecting portions 35a and 36a, the other projecting portions 35b and 36b, and the central projecting portions 35e and 36e. Since it can form, the shape of the flanges 33 and 34 can be simplified. Therefore, the joined body can be easily manufactured.

[Fourth Embodiment]
A joined body according to a fourth embodiment of the present invention will be described. As shown in FIG. 5, the first and second members 41 and 42 in the joined body according to the present embodiment correspond to the first and second members 31 and 32 in the third embodiment, respectively. The flanges 43 and 44 of the first and second members 41 and 42 correspond to the flanges 33 and 34 of the first and second members 31 and 32 in the third embodiment, respectively.

  The tip portions 45 and 46 of the flanges 43 and 44 are formed so as to terminate at one side in the width direction of the flanges 43 and 44 as in the third embodiment. Similarly to the third embodiment, the base end portions 47 and 48 of the flanges 43 and 44 are located on the other side in the width direction of the flanges 43 and 44, and the peripheral regions 41a and 41a of the first and second members 41 and 42, respectively. 42a. Such flanges 43 and 44 are joined using a welded portion 49 similar to that of the third embodiment in a state where the flanges 43 and 44 overlap each other in the thickness direction of the flanges 43 and 44.

  In the flanges 43 and 44, as in the third embodiment, one virtual lines L1 and L2, the other virtual lines M1 and M2, and central virtual lines N1 and N2 are defined. The tip portions 45 and 46 of the flanges 43 and 44 have one projecting portions 45a and 46a and the other projecting portions 45b and 46b similar to those of the third embodiment. The tip portions 45, 46 are one outer side portions 45c, 46c located on one side in the longitudinal direction with respect to the one projecting portions 45a, 46a, and the other outer side portion located on the other side in the longitudinal direction with respect to the other projecting portions 45b, 46b. 45d, 46d.

  Moreover, the front-end | tip parts 45 and 46 have the center protrusion parts 45e and 46e similar to 3rd Embodiment, one inner side parts 45f and 46f, and the other inner side parts 45g and 46g. Further, the tip portions 45, 46 are one peripheral portion 45h, 46h located on one side in the longitudinal direction with respect to the one outer side portion 45c, 46c, and the other on the other side in the longitudinal direction with respect to the other outer side portion 45d, 46d. Peripheral portions 45i and 46i are further provided.

  In such flanges 43, 44, the one projecting portions 45a, 46a and the one peripheral portions 45h, 46h are formed so as to project to one side in the width direction with respect to the one outer side portions 45c, 46c. The other protruding portions 45b and 46b and the other peripheral portions 45i and 46i are formed to protrude in one of the width directions with respect to the other outer portions 45d and 46d. On the other hand, the outer side portions 45c and 46c and the other outer side portions 45d and 46d are formed so as to be curved from one side to the other side in the width direction, and specifically, are formed in a substantially arc shape. The flanges 43 and 44 are located at longitudinal positions corresponding to the one projecting portions 45a and 46a, the other projecting portions 45b and 46b, the central projecting portions 45c and 46c, the one peripheral portions 45h and 46h, and the other peripheral portions 45i and 46i. Has the maximum width.

  Although it is only an example, the distance s1 in the width direction between the maximum convex portion of the one projecting portion 45a, 46a and the maximum concave portion of the one outer side portion 45c, 46c is in the range of about 1.5 mm or more and about 2.0 mm or less. Preferably, the distance s2 in the width direction between the maximum convex part of the other protrusions 45b and 46b and the maximum concave part of the other outer part 45d and 46d is also preferably in the range of about 1.5 mm or more and about 2.0 mm or less. . Further, the distance s3 in the width direction between the maximum convex portion of the central projecting portions 45e and 46e and the maximum concave portion of the one inner side portions 45f and 46f is preferably in the range of about 1.5 mm or more and about 2.0 mm or less. It is preferable that the distance s4 in the width direction between the maximum convex portion of the projecting portions 45e and 46e and the maximum concave portion of the other inner side portions 45g and 46g is also in the range of about 1.5 mm or more and about 2.0 mm or less. Under such conditions, the one outer side portions 45c and 46c and the other outer side portions 45d and 46d are preferably formed in a substantially arc shape having a radius of about 100 mm or more.

  However, the present invention is not limited to this, and one and other outer portions of the flange and one and the other peripheral portions may be configured as follows. At least one of the one and other outer portions may be formed in a shape other than a substantially arc shape, for example, may be formed in a substantially triangular shape or a substantially square shape. At least one of the one and other peripheral portions may protrude most in one of the width directions, and the flange may have a maximum width at a longitudinal position corresponding to at least one of the one and other peripheral portions. One and the other peripheral portions may be provided only on one flange of the first and second members.

  The effect obtained in the joined body according to the present embodiment is basically the same as that of the third embodiment, but the effect is different in the following points. In the joined body according to the present embodiment, the tip portions 45 and 46 of the flanges 43 and 44 are confined within a limited range such as the one outer side portions 45c and 46c and the other outer side portions 45d and 46d. The strength around 45a and 46a and the other protrusions 45b and 46b can be sufficiently maintained. Therefore, the joint strength of the joined body can be efficiently increased. Furthermore, since the front end portions 45 and 46 of the flanges 43 and 44 are confined within a limited range as described above, the range in which the material is processed to form such a constricted shape can be reduced. Therefore, the joined body can be easily manufactured.

  In the joined body according to the present embodiment, the flanges 43 and 44 have one projecting portions 45a and 46a, the other projecting portions 45b and 46b, a central projecting portion 45c and 46c, one peripheral portion 45h and 46h, and the other peripheral portion 45i, In order to form one protrusion 45a, 46a, the other protrusion 45b, 46b, one peripheral part 45h, 46h, and the other peripheral part 45i, 46i since it has the maximum width at the longitudinal position corresponding to 46i. The processing of the material can be omitted, or the range of such processing can be efficiently reduced. Therefore, the joined body can be easily manufactured.

[Fifth Embodiment]
A joined body according to a fifth embodiment of the present invention will be described. As shown in FIG. 6, the first and second members 51 and 52 in the joined body according to the present embodiment correspond to the first and second members 11 and 12 in the first embodiment, respectively. The flanges 33 and 34 of the first and second members 51 and 52 correspond to the flanges 13 and 14 of the first and second members 11 and 12 in the first embodiment, respectively.

  The front end portions 55 and 56 of the flanges 53 and 54 are formed so as to terminate at one side in the width direction of the flanges 53 and 54 as in the first embodiment. Similar to the first embodiment, the base end portions 57 and 58 of the flanges 53 and 54 are located on the other side in the width direction of the flanges 53 and 54, and the peripheral regions 51 a and 51 a of the first and second members 51 and 52. 52a. Such flanges 53 and 54 are joined using the welded portion 59 similar to that of the first embodiment in a state where the flanges 53 and 54 are overlapped with each other in the thickness direction of the flanges 53 and 54.

  In the flanges 53 and 54, as in the first embodiment, one virtual lines L1 and L2, the other virtual lines M1 and M2, and central virtual lines N1 and N2 are defined. The front end portions 55 and 56 of the flanges 53 and 54 have one projecting portions 55a and 56a that intersect one virtual line L1 and L2, the other projecting portions 55b and 56b that intersect the other virtual line M1 and M2, and a central virtual line N1. , N2 and central protrusions 55c and 56c. The central protrusions 55c and 56c are connected to the one protrusions 55a and 56a and the other protrusions 55b and 56b in the longitudinal direction. Further, the central projecting portions 55c and 56c are formed to project to one side in the width direction so that the projecting amount is equal to or greater than the projecting amounts of the one projecting portions 55a and 56a and the other projecting portions 55b and 56b. The one projecting portions 55a and 56a, the other projecting portions 55b and 56b, and the central projecting portions 55c and 56c are integrally formed in a substantially arc shape. The front end portions 55 and 56 of the flanges 53 and 54 also have one outer side portions 55d and 56d and the other outer side portions 55e and 56e similar to those in the first embodiment.

  As an example only, the distance t1 in the width direction between the maximum protrusions of the central protrusions 55c and 56c and the maximum recesses of the one outer side portions 55d and 56d is in the range of about 1.5 mm or more and about 2.0 mm or less. Preferably, the distance t2 in the width direction between the maximum convex portion of the central projecting portions 55c and 56c and the maximum concave portion of the other outer side portions 55e and 56e is also preferably in the range of about 1.5 mm or more and about 2.0 mm or less. . Furthermore, the distance t3 in the width direction between the one protrusions 55a and 56a and the intersection of the one virtual lines L1 and L2 and the maximum protrusions of the central protrusions 55c and 56c is in the range of about 0 mm or more and about 0.5 mm or less. Preferably, the distance t4 in the width direction between the intersections of the other protrusions 55b and 56b and the other virtual lines M1 and M2 and the maximum protrusions of the central protrusions 55c and 56c is also about 0 mm or more and about 0.5 mm or less. It is preferable that it is in the range. Under such conditions, the one projecting portions 55a and 56a, the other projecting portions 55b and 56b, and the central projecting portions 55c and 56c are preferably formed in a substantially arc shape having a radius of about 100 mm or more.

  However, the present invention is not limited to this, and one, the other, and the central protrusion of the flange may be configured as follows. One, the other, and the central protrusion may be formed only on one flange of the first and second members. The integrated one side, the other side, and the central protruding portion may be formed in a shape other than a substantially arc shape, for example, may be formed in a substantially triangular shape, a substantially square shape, a substantially staircase shape, or the like.

  The effects obtained in the joined body according to the present embodiment are basically the same as those in the first embodiment, but the effects differ in the following points. In the joined body according to the present embodiment, as shown in FIG. 6, the longitudinal direction of the base end portions 57 and 58 of the flanges 53 and 54 is directed to the position corresponding to the welded portion 59 from the other in the width direction. When the load F is applied, the tip portions 55 and 56 of the flanges 53 and 54 and the one intersecting portion of the one virtual line L1 and L2, the other end portion of the tip portions 55 and 56 and the other virtual line M1 and M2, and the tip portion 55 , 56 and central imaginary lines N1 and N2 at the center crossing portion, the distortion tends to increase. On the other hand, one projecting portion 55a, 56a, the other projecting portion 55b, 56b, and the center projecting portion 55c, 56c are formed at the one intersecting portion, the other intersecting portion, and the center intersecting portion, respectively, and the one projecting portion 55a. 56a, the other projecting portions 55b, 56b, and the central projecting portions 55c, 56c are connected to each other in the longitudinal direction, so that the distortion of one, the other, and the central intersecting portion can be reduced. Further, it is possible to prevent the breakage from starting from the intermediate intersection. Therefore, the joint strength of the joined body can be efficiently increased. Furthermore, the front end portions 55 and 56 of the flanges 53 and 54 are simply protruded within a limited range such as the integral one protruding portions 55a and 56a, the other protruding portions 55b and 56b, and the central protruding portions 55c and 56c. Since it can be formed into a shape, a joined body can be easily produced.

[Sixth Embodiment]
A joined body according to a sixth embodiment of the present invention will be described. As shown in FIG. 7, the first and second members 61 and 62 in the joined body according to the present embodiment correspond to the first and second members 51 and 52 in the fifth embodiment, respectively. The flanges 63 and 64 of the first and second members 61 and 62 correspond to the flanges 53 and 54 of the first and second members 51 and 52 in the fifth embodiment, respectively.

  The tip portions 65 and 66 of the flanges 63 and 64 are formed so as to terminate at one side in the width direction of the flanges 63 and 64 as in the fifth embodiment. Similarly to the fifth embodiment, the base end portions 67 and 68 of the flanges 63 and 64 are located on the other side in the width direction of the flanges 63 and 64, and the peripheral regions 61a and 61a of the first and second members 61 and 62, respectively. 62a is connected. Such flanges 63 and 64 are joined using a welded portion 69 similar to that of the fifth embodiment in a state where they overlap each other in the thickness direction of the flanges 63 and 64.

  In the flanges 63 and 64, as in the fifth embodiment, one virtual lines L1 and L2, the other virtual lines M1 and M2, and central virtual lines N1 and N2 are defined. The tip portions 65 and 66 of the flanges 63 and 64 have the same one projecting portions 65a and 66a, the other projecting portions 65b and 66b, and the central projecting portions 65c and 66c as in the fifth embodiment. The tip portions 65, 66 are one outer side portions 65d, 66d located on one side in the longitudinal direction with respect to the one projecting portions 65a, 66a, and the other outer side portion located on the other side in the longitudinal direction with respect to the other projecting portions 65b, 66b. 65e, 66e. The distal end portions 65 and 66 have one peripheral portion 65f and 66f located on one side in the longitudinal direction with respect to the one outer side portions 65d and 66d, and the other peripheral portion located on the other side in the longitudinal direction with respect to the other outer side portions 65e and 66e. 65g, 66g.

  In such flanges 63 and 64, the one projecting portions 65a and 66a and the one peripheral portion 65f and 66f are formed so as to project to one side in the width direction with respect to the one outer side portions 65d and 66d. Further, the other protruding portions 65b and 66b and the other peripheral portions 65g and 66g are formed to protrude in one of the width directions with respect to the other outer portions 65e and 66e. On the other hand, the outer side portions 65d and 66d and the other outer side portions 65e and 66e are formed so as to be curved from one side to the other side in the width direction, and specifically, are formed in a substantially arc shape. The flanges 63 and 64 have a maximum width at positions in the longitudinal direction corresponding to the central protrusions 65c and 66c, the one peripheral part 65f and 66f, and the other peripheral part 65g and 66g.

  As an example only, the distance u1 in the width direction between the maximum protrusions of the central protrusions 65c and 66c and the maximum recesses of the one outer side parts 65d and 66d is in the range of about 1.5 mm or more and about 2.0 mm or less. Preferably, the distance u2 in the width direction between the maximum convex portion of the central projecting portions 65c and 66c and the maximum concave portion of the other outer side portions 65e and 66e is also preferably in the range of about 1.5 mm or more and about 2.0 mm or less. . Furthermore, the distance u3 in the width direction between the one protrusions 65a and 66a and the intersection of the one virtual lines L1 and L2 and the maximum protrusions of the central protrusions 65c and 66c is in the range of about 0 mm or more and about 0.5 mm or less. The distance u4 in the width direction between the intersections of the other protrusions 65b, 66b and the other virtual lines M1, M2 and the maximum protrusions of the central protrusions 65c, 66c is also about 0 mm or more and about 0.5 mm. It is preferable to be within the following range. Under such conditions, the one projecting portions 65a and 66a, the other projecting portions 65b and 66b, and the center projecting portions 65c and 66c are preferably formed in a substantially arc shape having a radius of about 100 mm or more. The one outer side portions 65d and 66d and the other outer side portions 65e and 66e are preferably formed in a substantially arc shape having a radius of about 100 mm or more.

  However, the present invention is not limited to this, and one and other outer portions of the flange and one and the other peripheral portions may be configured as follows. At least one of the one and other outer portions may be formed in a shape other than a substantially arc shape, for example, may be formed in a substantially triangular shape or a substantially square shape. At least one of the one and other peripheral portions may protrude most in one of the width directions, and the flange may have a maximum width at a longitudinal position corresponding to at least one of the one and other peripheral portions. One and the other peripheral portions may be provided only on one flange of the first and second members.

  The effects obtained in the joined body according to the present embodiment are basically the same as those in the fifth embodiment, but the effects differ in the following points. In the joined body according to the present embodiment, the tip portions 65 and 66 of the flanges 63 and 64 are confined within a limited range such as the one outer side portions 65d and 66d and the other outer side portions 65e and 66e. The strength around 65a, 66a and the other protrusions 65b, 66b can be sufficiently maintained. Therefore, the joint strength of the joined body can be efficiently increased. Further, as described above, the tip portions 65 and 66 of the flanges 63 and 64 are confined within a limited range, so that the range for processing the material to form such a constricted shape can be reduced. Therefore, the joined body can be easily manufactured.

  Since the flanges 63 and 64 have the maximum width at the longitudinal positions corresponding to the central protrusions 65c and 66c, the one peripheral part 65f and 66f, and the other peripheral part 65g and 66g, 66a, the other protrusions 65b and 66b, the one peripheral part 65f and 66f, and the other peripheral part 65g and 66 may be omitted from processing the material, or the range of such processing may be effectively reduced. it can. Therefore, the joined body can be easily manufactured.

[Seventh Embodiment]
A vehicle front pillar assembly according to a seventh embodiment of the present invention will be described. In the present embodiment, the front pillar assembly will be described as being provided on the vehicle body of the truck. However, the present invention is not limited to this, and the front pillar assembly may be provided on a vehicle body other than the truck. Note that vehicles other than trucks include one-box type vehicles, sedan type vehicles, hatchback type vehicles, SUV type vehicles, and the like.

  As shown in FIG. 8, the vehicle body 71 has a pair of front pillar assemblies 72 that are spaced apart from each other in the vehicle width direction. The vehicle body 71 has a pair of side members 73 that are spaced apart from each other in the vehicle width direction. The front region 73a in the vehicle front-rear direction of the pair of side members 73 is formed to extend in the vehicle front-rear direction. The front ends of these front regions 73a are connected by a front cross member 74 extending in the vehicle width direction. The side member 73 has an inclined area 73b on the rear side of the vehicle with respect to the front area 73a. The inclined area 73b extends from the vehicle upper side to the vehicle lower side as it goes from the vehicle front side to the vehicle rear side. The front end portion of the inclined region 73b is connected to the rear end portion of the front region 73a.

  At least one of the pair of front pillar assemblies 72 is provided with a joined body 75 similar to the joined body according to any one of the first to sixth embodiments. The joined body 75 is arranged along the vehicle vertical direction. A front pillar member 76 is provided in the front of the vehicle with respect to the joined body 75 as a frame member extending in the vehicle front-rear direction.

  As shown in FIGS. 9 to 12, the joined body 75 includes the front pillar portion 77 of the side outer panel corresponding to the first member of any one of the first to sixth embodiments, and the first to sixth embodiments. And a dash side panel 78 corresponding to any one of the second members. The dash side panel 78 is located on the center side in the vehicle width direction with respect to the front pillar portion 77 of the side outer panel. Furthermore, the joined body 75 has a hinge reinforcement 79 corresponding to a third member located between the first and second members. That is, the hinge reinforcement 79 is located between the front pillar portion 77 and the dash side panel 78. The front pillar portion 77 of the side outer panel, the dash side panel 78, and the hinge reinforcement 79 are arranged along the vehicle longitudinal direction.

  As shown in FIG. 12, the front pillar portion 77, the dash side panel 78, and the hinge reinforcement 79 have flanges 80, 81, corresponding to any one of the flanges of the first to sixth embodiments. 82 are formed respectively. The flanges 80, 81, 82 terminate at the vehicle rear side of the front pillar portion 77, the dash side panel 78, and the hinge reinforcement 79, respectively. In the joined body 75, it is preferable that at least the front pillar portion 77 and the flanges 80 and 81 of the dash side panel 78 are arranged so as to overlap each other and are joined using a welded portion 83 similar to the welded portion. As shown in FIG. 12, the front pillar portion 77, the dash side panel 78, and the flanges 80, 81, 82 of the hinge reinforcement 79 are overlapped with each other, and a welded portion 83 similar to the welded portion is used. It is preferable that three sheets are joined together.

  Further, as shown in FIGS. 11 and 12, a front pillar reinforcement 84 is disposed between the front pillar portion 77 and the hinge reinforcement 79. As shown in FIG. 12, the front pillar reinforcement 84 is joined to the front pillar portion 77 of the side outer panel. In particular, the rear end portions of the front pillar portion 77, the hinge reinforcement 79, and the front pillar reinforcement 84 in the vehicle front-rear direction are preferably arranged so as to overlap each other and are joined together.

  The rear end portion of the front pillar member 76 in the vehicle front-rear direction is attached to the front end portion of the joined body 75 in the vehicle front-rear direction. Specifically, the rear end portion of the front pillar member 76 penetrates the dash side panel 78 and is attached to the front pillar reinforcement 84. As shown in FIG. 9, the heights of the attachment portions of the joined body 75 and the front pillar member 76 substantially coincide with the height of the welded portion 83 in the vehicle vertical direction. As shown in FIG. 8, the front end portion of the front pillar member 76 in the vehicle front-rear direction is attached to the rear end portion of the front region 73 a of the side member 73. The front region 73a of the side member 73 and the front pillar member 76 are preferably arranged side by side on a straight line extending in the vehicle front-rear direction.

  The effect obtained in the joined body according to the present embodiment is basically the same as that of any of the first to sixth embodiments, but the effect is different in the following points. The bonding strength of the bonded body 75 in the front pillar assembly 72 can be efficiently increased with respect to the load applied from the front pillar member 76. Further, since the joined body 75 as described above is used for the front pillar assembly 72, the front pillar assembly 72 can also be easily manufactured.

  Although the embodiment of the present invention has been described so far, the present invention is not limited to the above-described embodiment. The present invention can be modified and changed based on the technical idea.

  For example, as a first modification of the present invention, the joined body according to any one of the first to sixth embodiments may be used for a vehicle center pillar assembly or a roof side rail assembly.

  As a second modification of the present invention, an additional member may be attached to the other end portion in the width direction of the joined body according to any one of the first to sixth embodiments. The position in the longitudinal direction of the attachment portion is preferably substantially coincident with the position in the longitudinal direction of the welded portion.

  As a third modified example of the present invention, in at least one of two or more members provided in the joined body according to the first or second embodiment, between one and the other inner portion, from the other in the width direction to one. A plurality of protruding portions that protrude may be formed.

[Example]
Examples will be described. In the examples, the joined body according to the sixth embodiment is used. As shown in FIG. 13, in such a joined body, the first and second members 61 and 62 are formed in an L shape, and the flanges 63 and 64 rise from the peripheral regions 61a and 62a at substantially right angles, respectively. .

  As shown in FIG. 14, in the tip portions 65 and 66 of the flanges 63 and 64, the distance u1 between the maximum protrusions of the central protrusions 65c and 66c and the maximum recesses of the one outer side portions 65d and 66d is 2.0 mm. The distance u2 between the maximum convex part of the central projecting parts 65c and 66c and the maximum concave part of the other outer side parts 65e and 66e is also 2.0 mm. The integrated one projecting portions 65a and 66a, the other projecting portions 65b and 66b, and the central projecting portions 65c and 66c are formed in an arc shape with a radius of 100 mm, and the one outer portions 65d and 66d and the other outer portions 65e and 66e. Are formed in an arc shape having a radius of 100 mm. On the other hand, the distance between the centers in the longitudinal direction of the outer portions 65d and 66d and the other outer portions 65e and 66e is 56.4 mm. On the other hand, corners between the outer portions 65d and 66d and the one peripheral portions 65f and 66f, and corner portions between the other outer portions 65e and 66e and the other peripheral portions 65g and 66g are formed in an arc shape having a radius of 40 mm. Such flanges 63 and 64 are joined together using a joining portion 69 formed by spot welding in a state where they overlap each other. Further, a flat plate member K is joined on the peripheral regions 61 a and 62 a of the first and second members 61 and 62.

  In an Example, a bending test is performed with respect to such a joined body. As shown in FIG. 13, in this bending test, both ends in the longitudinal direction of the joined body are supported by jigs J1 and J2. A load F is applied to the joined body in such a supported state. Specifically, the jig J3 is brought into contact with a position corresponding to the welded portion 69 in the longitudinal direction of the plate member K, and a load F directed from one side to the other side in the width direction is applied to the jig J3. During such a bending test, strain is distributed on the flanges 63 and 64 as shown in FIG. In FIG. 15 and FIG. 17 to be described later, the strain distribution is indicated by regions a1 to a9 drawn using various hatchings. Here, it is assumed that the magnitude of the strain increases in the order of the regions a1 to a9.

[Comparative example]
A comparative example will be described. As shown in FIG. 16, the comparative example is the same as the example except that the tip portions 105 and 106 of the flanges 103 and 104 in the first and second members 101 and 102 are formed in a linear shape. A joined body is used. Note that the flanges 103 and 104 of the comparative example are also joined using a welded portion 107 formed by spot welding in a state where they overlap each other, and the peripheral regions of the first and second members 101 and 102 are also joined. A plate member K having a flat plate shape is joined on 61a and 62a. In a comparative example, the bending test similar to an Example is performed with respect to this joined body. During such a bending test, strain is distributed on the flanges 103 and 104 as shown in FIG.

  With reference to FIG.15 and FIG.17, the strain distribution map of an Example and a comparative example is contrasted. In both of the flanges 63 and 64 of the example and the flanges 103 and 104 of the comparative example, distortion occurs at one virtual line L1, L2 and the other virtual line M1, M2 peripheral part (hereinafter referred to as “virtual line peripheral part”). Tend to be larger. However, the distortion around the imaginary line in the example is reduced with respect to the distortion around the imaginary line in the comparative example. For this reason, in the embodiment, it can be confirmed that the distortion of the flanges 63 and 64 is reduced by the integrated one projecting portions 65a and 66a, the other projecting portions 65b and 66b, and the central projecting portions 65c and 66c.

  In particular, the strain at one and the other intersections at the tip portions 65 and 66 of the flanges 63 and 64 of the embodiment is reduced with respect to the strain at the one and the other intersections at the tip portions 105 and 106 of the flanges 103 and 104 of the comparative example. Therefore, it can be confirmed that the flanges 63 and 64 of the example are less likely to break from one and the other intersecting portions than the flanges 103 and 104 of the comparative example.

11, 21 First member 11a, 21a Peripheral region 12, 22 Second member 12a, 22a Peripheral region 13, 14, 23, 24 Flange 15, 16, 25, 26 Tip portion 15a, 16a, 25a, 26a Parts 15b, 16b, 25b, 26b The other projecting parts 15c, 16c, 25c, 26c The other outer parts 15d, 16d, 25d, 26d The other outer parts 15e, 16e, 25e, 26e The other inner parts 15f, 16f, 25f, 26f The other inner part Portions 19, 29 Welded portions 19a, 29a One longitudinal end 19b, 29b The other longitudinal end 25g, 26g One peripheral portion 25h, 26h The other peripheral portion p1, p2, q1, q2 Distance

31, 41 First member 31a, 41a Peripheral region 32, 42 Second member 32a, 42a Peripheral region 33, 34, 43, 44 Flange 35, 36, 45, 46 Tip portion 35a, 36a, 45a, 46a One protrusion Portions 35b, 36b, 45b, 46b The other protrusions 35c, 36c, 45c, 46c The other outer portions 35d, 36d, 45d, 46d The other outer portions 35e, 36e, 45e, 46e The central protrusions 35f, 36f, 45f, 46f Portions 35g, 36g, 45g, 46g The other inner side portions 39, 49 Welded portions 39a, 49a One longitudinal end portion 39b, 49b The other longitudinal end portion 45h, 46h One peripheral portion 45i, 46i The other peripheral portion r1, r2, r3 r4, s1, s2, s3, s4 distance

51, 61 First member 51a, 61a Peripheral region 52, 62 Second member 52a, 62a Peripheral region 53, 54, 63, 64 Flange 55, 56, 65, 66 Tip portion 55a, 56a, 65a, 66a One protrusion Portions 55b, 56b, 65b, 66b Other protrusions 55c, 56c, 65c, 66c Center protrusions 55d, 56d, 65d, 66d One outer part 55e, 56e, 65e, 66e The other outer part 59, 69 Welded parts 59a, 69a Longitudinal Direction one end 59b, 69b longitudinal direction other end 65f, 66f one peripheral part 65g, 66g other peripheral part t1, t2, t3, t4, u1, u2, u3, u4 distance

72 Front pillar assembly 75 Joint 76 Front pillar member 77 Front pillar portion 78 of side outer panel Dash side panels 80, 81 Flange 83 Welded portion

L1, L2 One virtual line M1, M2 The other virtual line N1, N2 Center virtual line θ1, θ2, φ1, φ2 Inclination angle F Load

Claims (10)

Two members, each of the two members including a joining region extending along a peripheral region thereof;
A joined body in which the joining regions of the two members are overlapped and joined using a welded portion formed by welding,
The joining region has a tip portion located on one side in the width direction perpendicular to the longitudinal direction;
The tip portion is
One projecting portion that intersects with the imaginary line, and the one imaginary line passes through one longitudinal end portion of the welded portion and leaves the welded portion in the longitudinal direction toward the tip portion and in the width direction. One protrusion defined as a straight line extending at an inclination angle of 40 ° or more and 50 ° or less,
The other projecting portion intersecting with the other imaginary line, the other imaginary line passing through the other end portion in the longitudinal direction of the welded portion and moving away from the welded portion in the longitudinal direction toward the tip portion and in the width direction The other protrusion defined as a straight line extending at an inclination angle of 40 ° or more and 50 ° or less,
One outer portion adjacent to the one projecting portion in the longitudinal direction;
The other outer portion adjacent to the other in the longitudinal direction with respect to the other protrusion,
One inner part adjacent to the other in the longitudinal direction with respect to the one projecting part;
And the other inner side part adjacent to one side in the longitudinal direction with respect to the other projecting part,
The one protruding portion is formed to protrude in one of the width directions with respect to the one outer portion and the one inner portion,
The joined body, wherein the other protruding portion is formed to protrude in one of the width direction with respect to the other outer portion and the other inner portion.   The joined body according to claim 1, wherein the one inner side and the other inner side are connected in the longitudinal direction. The tip portion is a central projecting portion that intersects the central imaginary line between the one and the other inner side, and the central imaginary line is a straight line extending in the width direction through the center in the longitudinal direction of the welded portion. Further defined, having a central protrusion,
The joined body according to claim 1, wherein the intermediate projecting portion is formed so as to project to one side in the width direction with respect to the one and the other inner side portions.   The joined body according to any one of claims 1 to 3, wherein the one and other outer portions are formed so as to extend along a longitudinal direction. The tip portion is
One peripheral part adjacent to one side in the longitudinal direction with respect to the one outer side part;
And the other peripheral portion adjacent to the other in the longitudinal direction with respect to the other outer portion,
The one peripheral portion is formed to protrude in one of the width directions with respect to the one outer portion,
The joined body according to any one of claims 1 to 3, wherein the other peripheral portion is formed to protrude in one of the width directions with respect to the other outer portion. Two members, each of the two members including a joining region extending along a peripheral region thereof;
A joined body in which the joining regions of the two members are overlapped and joined using a welded portion formed by welding,
The joining region has a tip portion located on one side in the width direction perpendicular to the longitudinal direction;
The tip portion is
One projecting portion that intersects with the imaginary line, and the one imaginary line passes through one longitudinal end portion of the welded portion and leaves the welded portion in the longitudinal direction toward the tip portion and in the width direction. One protrusion defined as a straight line extending at an inclination angle of 40 ° or more and 50 ° or less,
The other projecting portion intersecting with the other imaginary line, the other imaginary line passing through the other end portion in the longitudinal direction of the welded portion and moving away from the welded portion in the longitudinal direction toward the tip portion and in the width direction The other protrusion defined as a straight line extending at an inclination angle of 40 ° or more and 50 ° or less,
A central protrusion that intersects the central imaginary line, wherein the central imaginary line is defined as a straight line extending in the width direction through the longitudinal center of the welded portion; and
One outer portion adjacent to the one projecting portion in the longitudinal direction;
And the other outer portion adjacent to the other in the longitudinal direction with respect to the other protrusion,
The one protruding portion is formed to protrude in one of the width directions with respect to the one outer portion,
The other protruding portion is formed to protrude in one of the width directions with respect to the other outer portion,
The central projecting portion is formed by projecting to one side in the width direction so that the one projecting portion and the other projecting portion are connected in the longitudinal direction and the projecting amount of the central projecting portion is equal to or greater than the projecting amount of the one and other projecting portions. And
The joined body is formed such that the one and other outer portions extend along the longitudinal direction. Two members, each of the two members including a joining region extending along a peripheral region thereof;
A joined body in which the joining regions of the two members are overlapped and joined using a welded portion formed by welding,
The joining region has a tip portion located on one side in the width direction perpendicular to the longitudinal direction;
The tip portion is
One projecting portion that intersects with the imaginary line, and the one imaginary line passes through one longitudinal end portion of the welded portion and leaves the welded portion in the longitudinal direction toward the tip portion and in the width direction. One protrusion defined as a straight line extending at an inclination angle of 40 ° or more and 50 ° or less,
The other projecting portion intersecting with the other imaginary line, the other imaginary line passing through the other end portion in the longitudinal direction of the welded portion and moving away from the welded portion in the longitudinal direction toward the tip portion and in the width direction The other protrusion defined as a straight line extending at an inclination angle of 40 ° or more and 50 ° or less,
A central protrusion that intersects the central imaginary line, wherein the central imaginary line is defined as a straight line extending in the width direction through the longitudinal center of the welded portion; and
One outer portion adjacent to the one projecting portion in the longitudinal direction;
The other outer portion adjacent to the other in the longitudinal direction with respect to the other protrusion,
One peripheral part adjacent to one side in the longitudinal direction with respect to the one outer side part;
The other peripheral part adjacent to the other in the longitudinal direction with respect to the other outer part, and
The one protruding portion and the peripheral portion are formed to protrude in one of the width directions with respect to the one outer portion,
The other protruding portion and the peripheral portion are formed to protrude in one of the width directions with respect to the other outer portion,
The central projecting portion is formed by projecting to one side in the width direction so that the one projecting portion and the other projecting portion are connected in the longitudinal direction and the projecting amount of the central projecting portion is equal to or greater than the projecting amount of the one and other projecting portions. Is a joined body.   The joined body according to claim 5 or 7, wherein the joining region has a maximum width at a position in a longitudinal direction corresponding to at least one of the one and the other peripheral portions.   The joined body according to any one of claims 1 to 8, wherein the welded portion is formed by spot welding. A vehicle front pillar assembly provided on a side of a vehicle body in a vehicle width direction,
Comprising the joined body according to any one of claims 1 to 9,
A first member that is one of the two members is disposed along the vehicle vertical direction,
A second member, which is another one of the two members, is arranged along the vehicle vertical direction on the center side in the vehicle width direction with respect to the first member,
The joining region of the first and second members is located at the rear end of the joined body in the vehicle front-rear direction;
A frame member is attached to the front end portion of the joined body in the vehicle longitudinal direction,
A front pillar assembly for a vehicle, wherein heights of attachment portions of the joined body and the frame member correspond to heights of the welded portions in a vehicle vertical direction.

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