WO2021192188A1

WO2021192188A1 - Structure and method for manufacturing structure

Info

Publication number: WO2021192188A1
Application number: PCT/JP2020/013863
Authority: WO
Inventors: 浅野　浩二; 法右田邉
Original assignee: ユニプレス株式会社
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2021-09-30

Abstract

This structure may be provided with a skeleton member having a closed cross-section structure. The structure may be provided with a reinforcing member configured separate from the skeleton member and positioned inside the skeleton member. The reinforcing member may have a first plate-form section and a second plate-form section intersecting the first plate-form section. One end of the first plate-form section may be joined to a first wall section of the skeleton member. The other end of the first plate-form section may be joined to a second wall section facing the first wall section of the skeleton member. One end of the second plate-form section may be joined to a third wall section that connects one end part of the first wall section of the skeleton member and one end part of the second wall section. The other end of the second plate-form section may be joined to a fourth wall section facing the third wall section of the skeleton member.

Description

Structure and manufacturing method of structure

The present invention relates to a structure and a method for manufacturing the structure.

Patent Document 1 discloses an automobile reinforcing member in which a reinforcing member is arranged inside a main body member having a hat portion.
[Prior art literature]
[Patent Document]
[Patent Document 1] Japanese Unexamined Patent Publication No. 2009-220635

The problem to be solved

It is desired to improve the impact absorption energy in the structure.

General disclosure

In order to solve the above problems, the structure according to one aspect of the present invention may include a skeleton member having a closed cross-section structure. The structure may be composed of a separate body from the skeleton member and may include a reinforcing member arranged in the skeleton member. The reinforcing member may have a first plate-shaped portion and a second plate-shaped portion intersecting the first plate-shaped portion. One end of the first plate-shaped portion may be joined to the first wall portion of the skeleton member. The other end of the first plate-shaped portion may be joined to the second wall portion facing the first wall portion of the skeleton member. One end of the second plate-shaped portion may be joined to a third wall portion that connects one end portion of the first wall portion of the skeleton member and one end portion of the second wall portion. The other end of the second plate-shaped portion may be joined to the fourth wall portion facing the third wall portion of the skeleton member.

The first wall portion may have a first slit into which one end of the first plate-shaped portion is inserted. The second wall portion may have a second slit into which the other end of the first plate-shaped portion is inserted.

The third wall portion may have a third slit into which one end of the second plate-shaped portion is inserted. The fourth wall portion may have a fourth slit into which the other end of the second plate-shaped portion is inserted.

The skeleton members are the first wall portion, the second wall portion, the third wall portion, the first flange portion extending outward from the other end portion of the first wall portion, and the skeleton member outward from the other end portion of the second wall portion. It may have a first member having an extending second flange portion. The skeleton member may have a second member joined to the first flange portion and the second flange portion and forming a closed cross-sectional structure together with the first member.

At least one of the first plate-shaped portion and the second plate-shaped portion may include at least one bent portion.

One of the first plate-shaped portion and the second plate-shaped portion has the other of the first plate-shaped portion and the second plate-shaped portion inserted, and the second plate-shaped portion is arranged so as to intersect with the first plate-shaped portion. It may have a slit to do so.

The material of the first plate-shaped part may be different from the material of the second plate-shaped part. The thickness of the first plate-shaped portion may be different from the thickness of the second plate-shaped portion.

The reinforcing member may include a first L-shaped member and a second L-shaped member. The first L-shaped member may include a first portion of the first plate-shaped portion and a third portion of the second plate-shaped portion. The second L-shaped member may include a second portion of the first plate-shaped portion and the fourth portion of the second plate-shaped portion.

The material of the first part including one end of the first plate-shaped portion may be different from the material of the second part including the other end of the first plate-shaped portion. The material of the third portion including one end of the second plate-shaped portion may be different from the material of the fourth portion including the other end of the second plate-shaped portion.

The material of the first part may be the same as the material of the third part. The material of the second part may be the same as the material of the fourth part.

In order to solve the above problems, the structure according to one aspect of the present invention may include a skeleton member having a closed cross-section structure. The structure may be composed of a separate body from the skeleton member and may include a reinforcing member arranged in the skeleton member. The skeleton member may have a first wall portion. The first wall portion may have a first slit into which one end of the reinforcing member is inserted.

The skeleton member may further have a second wall portion facing the first wall portion. The second wall portion may have a second slit into which the other end of the reinforcing member is inserted.

The skeleton member includes the first wall portion and the second wall portion, the third wall portion connecting one end portion of the first wall portion and one end portion of the second wall portion, and the outer side from the other end portion of the first wall portion. It may have a first member having a first flange portion extending to the outside and a second flange portion extending outward from the other end of the second wall portion. The structure may have a second member that is joined to the first flange portion and the second flange portion to form a closed cross-sectional structure together with the first member.

The structure may be a vehicle skeleton structure. The reinforcing member may be arranged in at least a part of the skeleton member.

In order to solve the above problems, the method for manufacturing a structure according to one aspect of the present invention includes a first wall portion and a second wall portion facing each other, and one end portion of the first wall portion and one end of the second wall portion. A first having a third wall portion connecting the portions, a first flange portion extending outward from the other end portion of the first wall portion, and a second flange portion extending outward from the other end portion of the second wall portion. A reinforcing member having a first plate-shaped portion and a second plate-shaped portion intersecting the first plate-shaped portion is arranged in the opening of the member, and one end of the first plate-shaped portion is arranged on the first wall portion side. It may include a step of arranging so that the other end of the plate-shaped portion is arranged on the second wall portion side and one end of the second plate-shaped portion is arranged on the third wall portion side. The method for manufacturing the structure may include a step of joining one end of the first plate-shaped portion to the first wall portion. The method for manufacturing the structure may include a step of joining the other end of the first plate-shaped portion to the second wall portion. The method for manufacturing the structure may include a step of joining one end of the second plate-shaped portion to the third wall portion. The method of manufacturing the structure may include a step of arranging the second member on the first flange portion and the second flange portion in order to cover the opening of the first member and form a closed cross-sectional structure together with the first member. The method for manufacturing the structure may include a step of joining the first flange portion and the second flange portion and the second member. The method for manufacturing the structure may include a step of joining the other end of the second plate-shaped portion to the second member.

The step of joining one end of the first plate-shaped portion to the first wall portion may include a step of joining one end of the first plate-shaped portion to the first wall portion by welding from the outside of the first wall portion. The step of joining the other end of the first plate-shaped portion to the second wall portion includes the step of joining the other end of the first plate-shaped portion to the second wall portion by welding from the outside of the second wall portion. good. The step of joining one end of the second plate-shaped portion to the third wall portion may include a step of joining one end of the second plate-shaped portion to the third wall portion by welding from the outside of the third wall portion.

At the stage of arranging the reinforcing member in the opening of the first member, one end of the first plate-shaped portion is inserted into the first slit formed in the first wall portion, and the other end of the first plate-shaped portion is inserted into the second wall. A step of arranging a reinforcing member in the opening of the first member by inserting it into the second slit formed in the portion and inserting one end of the second plate-shaped portion into the third slit formed in the third wall portion. May include. At the stage of joining one end of the first plate-shaped portion to the first wall portion, one end of the first plate-shaped portion is welded to the first wall portion by welding from the outside of the first wall portion while traversing along the first slit. It may include a step of subjoining. At the stage of joining the other end of the first plate-shaped portion to the second wall portion, the other end of the first plate-shaped portion is first by welding from the outside of the second wall portion while tracking along the second slit. It may include a step of joining two walls. At the stage of joining one end of the second plate-shaped portion to the third wall portion, one end of the second plate-shaped portion is joined to the third wall by welding from the outside of the third wall portion while tracking along the third slit. It may include a step of subjoining.

At the stage of joining one end of the first plate-shaped portion to the first wall portion, the first plate-shaped portion is welded by supplying a filler wire from the outside of the first wall portion while traversing along the first slit. It may include a step of joining one end of the first wall portion. At the stage of joining the other end of the first plate-shaped portion to the second wall portion, the filler wire is supplied from the outside of the second wall portion and welded while tracking along the second slit to form the first plate-shaped portion. It may include a step of joining the other end of the portion to the second wall portion. At the stage of joining one end of the second plate-shaped portion to the third wall portion, the filler wire is supplied from the outside of the third wall portion while tracking along the third slit, and the second plate-shaped portion is welded. It may include a step of joining one end of the third wall portion.

The outline of the above invention does not list all the necessary features of the present invention. Sub-combinations of these feature groups can also be inventions.

It is a side view which shows an example of a structure. It is sectional drawing which shows an example of a structure. It is a perspective view which shows an example of a structure. It is a front view which shows an example of a reinforcing member. It is a front view which shows an example of a reinforcing member. It is a front view which shows an example of a reinforcing member. It is a front view which shows an example of a reinforcing member. It is a front view which shows an example of a reinforcing member. It is a front view which shows an example of a reinforcing member. It is a perspective view which shows an example of a reinforcing member. It is an exploded perspective view which shows an example of a reinforcing member. It is a perspective view which shows an example of a reinforcing member. It is a front view which shows an example of a reinforcing member. It is a perspective view which shows an example of a reinforcing member. It is a front view which shows an example of a reinforcing member. It is a perspective view which shows an example of a reinforcing member. It is a front view which shows an example of a reinforcing member. It is a perspective view which shows an example of a reinforcing member. It is a side view which shows an example of a reinforcing member. It is a perspective view which shows an example of a structure. It is a figure which shows an example of one end of the 2nd plate-shaped part inserted into the 2nd slit. It is a figure which shows an example of one end of the 2nd plate-shaped part inserted into the 2nd slit. It is a figure which shows an example of one end of the 2nd plate-shaped part inserted into the 2nd slit. It is a figure which shows an example of one end of the 2nd plate-shaped part inserted into the 2nd slit. It is a figure which shows an example of one end of the 2nd plate-shaped part inserted into the 2nd slit. It is a figure which shows an example of one end of the 2nd plate-shaped part inserted into the 2nd slit. It is the schematic which shows an example of the laser welding apparatus. It is the schematic which shows an example of the laser welding processing head with a wire torch. It is a schematic perspective view which shows the step of joining a 1st flange part and a 2nd flange part, and a 2nd member.

Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the inventions claimed. Also, not all combinations of features described in the embodiments are essential to the means of solving the invention.

FIG. 1 is a side view showing an example of the structure. The structure may be a vehicle skeleton structure. The vehicle skeleton structure may be a front side member or a rear side member. The vehicle skeleton structure is not limited to the front side member or the rear side member, and may be other strength members. The vehicle skeleton structure may extend in the front-rear direction of the vehicle, may extend in the vehicle width direction, may extend in the vertical direction, or may extend in other directions. The structure is not limited to the vehicle skeleton structure. The structure may be used not only in automobiles but also in other vehicles and self-propelled machines. Other vehicles and self-propelled machines include, for example, two-wheeled vehicles, large vehicles such as buses or towing vehicles, trailers, railroad vehicles, construction machinery, mining machinery, agricultural machinery, general machinery, and ships. The structure may be used for other structures such as buildings.

In each figure, three orthogonal directions are indicated by arrows. The X direction may be the first direction. The Y direction may be the second direction. The Z direction may be the third direction. For example, the Y direction may be a direction along the longitudinal direction of the structure 100. The Y direction may be, for example, the front-rear direction of the vehicle. The X direction may be, for example, the vehicle width direction. The Z direction may be the vertical direction. In the following description, the description regarding the top and bottom refers to the top and bottom in the state shown in the figure.

FIG. 1 is, for example, a structure 100 which is a front side member, and is a view seen from the vehicle width direction. The front side members extend in the front-rear direction in front of the driver's cab of the vehicle. The front side members are arranged on both sides of the engine room, for example.

FIG. 2 is a cross-sectional view showing an example of the structure 100. FIG. 2 is a cross section of the structure 100 intersecting in the longitudinal direction. FIG. 3 is a perspective view showing an example of the structure 100. The structure 100 may include a skeleton member 200 and a reinforcing member 300. The skeleton member 200 may have a closed cross-sectional structure. The skeleton member 200 may have a first member 201 and a second member 202. The first member 201 has, for example, a hat shape. The second member 202 has, for example, a substantially flat plate shape. The second member 202 may have a hat shape. The first member 201 and the second member 202 may be, for example, hot stamping parts formed by hot stamping. The first member 201 and the second member 202 may be formed from a steel plate. The first member 201 and the second member 202 may be formed from high-strength steel or ultra-high-strength steel. The high-strength steel may be a steel having a tensile strength of 440 Mpa to 790 Mpa. The ultra-high-strength steel may be a steel having a tensile strength of 980 Mpa or more. The reinforcing member 300 may be formed from a metal such as steel, an aluminum alloy, or a magnesium alloy.

The first member 201 may have a first wall portion 210, a second wall portion 220, and a third wall portion 230. The first wall portion 210 and the second wall portion 220 may be arranged so as to face each other in the Z direction, for example. The third wall portion 230 is joined to one end portion 211 of the first wall portion 210 and one end portion 221 of the second wall portion 220.

The skeleton member 200 may have a first flange portion 250 and a second flange portion 260. The first flange portion 250 extends outward from the other end 212 of the first wall portion 210. The second flange portion 260 extends outward from the other end portion 222 of the second wall portion 220. The second member 202 is joined to the first flange portion 250 and the second flange portion 260. The second member 202 can form a closed cross-sectional structure together with the first member 201. The second member 202 may have a fourth wall portion 240. The fourth wall portion 240 faces the third wall portion 230 in the X direction.

The reinforcing member 300 may be a reinforcement. The reinforcing member 300 may be formed separately from the skeleton member 200. The reinforcing member 300 may have a first plate-shaped portion 310 and a second plate-shaped portion 320. The first plate-shaped portion 310 and the second plate-shaped portion 320 intersect with each other when viewed from the Y direction. When viewed from the Y direction, the first plate-shaped portion 310 may extend in the Z direction, and the second plate-shaped portion 320 may extend in the X direction. The plate thickness direction of the first plate-shaped portion 310 may be arranged along the X direction. The plate thickness direction of the second plate-shaped portion 320 may be arranged along the Z direction.

One end 311 of the first plate-shaped portion 310 may be joined to the first wall portion 210. The other end 322 of the first plate-shaped portion 310 may be joined to the second wall portion 220. One end 321 of the second plate-shaped portion 320 may be joined to the third wall portion 230. The other end 322 of the second plate-shaped portion 320 may be joined to the fourth wall portion 240. The reinforcing member 300 may include at least one of the first plate-shaped portion 310 and the second plate-shaped portion 320. The reinforcing member 300 may include only the first plate-shaped portion 310. Alternatively, the reinforcing member 300 may include only the second plate-shaped portion 320.

FIG. 4 is a front view showing an example of the reinforcing member 301. At least one of the first plate-shaped portion 310 and the second plate-shaped portion 320 may include at least one bent portion 331. Bent portions 331 may be formed at one end 311 and the other end 312 of the first plate-shaped portion 310. The bent portion 331 at one end 311 and the bent portion 331 at the other end 312 may be bent in different directions from each other. The bent portion 331 at one end 311 and the bent portion 331 at the other end 312 may be bent in the same direction.

The bent portion 331 may be continuously formed over the entire length of the reinforcing member 301 in the Y direction. The bent portion 331 may be partially formed in the Y direction.

Bent portions 331 may be formed at one end 321 and the other end 322 of the second plate-shaped portion 320. The bent portion 331 of one end 321 and the bent portion 331 of the other end 322 may be bent in different directions from each other. The bent portion 331 at one end 321 and the bent portion 331 at the other end 322 may be bent in the same direction.

FIG. 5 is a front view showing an example of the reinforcing member 302. In the reinforcing member 302, bent portions 331 are formed at one end 311 and the other end 312 of the first plate-shaped portion 310. In the reinforcing member 302, the bent portion 331 is not formed on the second plate-shaped portion 320. The reinforcing member 302 may have a first plate-shaped portion 310 in which the bent portion 331 is formed, and a second plate-shaped portion 320 in which the bent portion 331 is not formed. The reinforcing member 302 may have a first plate-shaped portion 310 in which the bent portion 331 is not formed, and a second plate-shaped portion 320 in which the bent portion 331 is formed.

FIG. 6 is a front view showing an example of the reinforcing member 303. In the reinforcing member 303, the bent portion 331 may be formed only on the other end 312 of the first plate-shaped portion 310. In the reinforcing member 303, a bent portion 331 may be formed only at one end 311 of the first plate-shaped portion 310. In the reinforcing member 303, the bent portion 331 may be formed only at one end 321 of the second plate-shaped portion 320, and the bent portion 331 may be formed only at the other end 322.

FIG. 7 is a front view showing an example of the reinforcing member 304. In the reinforcing member 304, a plurality of

bent portions

332 and 333 may be formed on one end 311 side of the first plate-shaped portion 310. The first plate-shaped portion 310 may be bent in the X direction toward the third wall portion 230 at the bent portion 332 and in the Z direction toward the first wall portion 210 at the bent portion 333. The direction in which the

bent portions

332 and 333 are bent may be other directions.

In the reinforcing member 304, a plurality of

bent portions

332 and 333 may be formed on the other end 312 side of the first plate-shaped portion 310. The first plate-shaped portion 310 may be bent in the X direction toward the third wall portion 230 at the bent portion 332 and in the Z direction toward the second wall portion 220 at the bent portion 333. The plurality of

bent portions

332 and 333 may be formed in the second plate-shaped portion 320.

FIG. 8 is a front view showing an example of the reinforcing member 305. In the reinforcing member 305, a plurality of bent portions 332 to 334 may be formed on the upper portion of the first plate-shaped portion 310. The upper portion of the first plate-shaped portion 310 is, for example, a portion above the second plate-shaped portion 320.

The first plate-shaped portion 310 may be bent in the X direction toward the fourth wall portion 240 at the bent portion 334, and may be bent in the Z direction toward the first wall portion 210 at the bent portion 335. The first plate-shaped portion 310 is bent in the X direction toward the third wall portion 230 at the bent portion 332 and bent in the Z direction toward the first wall portion 210 at the bent portion 333 above the bent portion 335. You can.

In the reinforcing member 305, a plurality of bent portions 332 to 334 may be formed in the lower portion of the first plate-shaped portion 310. The lower portion of the first plate-shaped portion 310 is, for example, a portion below the second plate-shaped portion 320.

The first plate-shaped portion 310 may be bent in the X direction toward the fourth wall portion 240 at the bent portion 334, and may be bent in the Z direction toward the second wall portion 220 at the bent portion 335. The first plate-shaped portion 310 is bent in the X direction toward the third wall portion 230 at the bent portion 332 and bent in the Z direction toward the second wall portion 220 at the bent portion 333 below the bent portion 335. You can.

FIG. 9 is a front view showing an example of the reinforcing member 306. In the reinforcing member 306, a plurality of bent portions 332 to 334 may be formed on the left side portion of the second plate-shaped portion 320. The left side portion of the second plate-shaped portion 320 is, for example, a portion on the left side of the first plate-shaped portion 310.

The second plate-shaped portion 320 may be bent in the Z direction toward the first wall portion 210 at the bent portion 334, and may be bent in the X direction toward the third wall portion 230 at the bent portion 335. The second plate-shaped portion 320 is bent in the Z direction toward the second wall portion 220 at the bent portion 332 and bent in the X direction toward the third wall portion 230 at the bent portion 333 on the left side of the bent portion 335. You can.

In the reinforcing member 306, a plurality of bent portions 332 to 334 may be formed on the right side portion of the second plate-shaped portion 320. The portion on the right side of the second plate-shaped portion 320 is, for example, a portion on the right side of the first plate-shaped portion 310.

The second plate-shaped portion 320 may be bent in the Z direction toward the first wall portion 210 at the bent portion 334, and may be bent in the X direction toward the third wall portion 230 at the bent portion 335. The second plate-shaped portion 320 is bent in the Z direction toward the second wall portion 220 at the bent portion 332 and bent in the X direction toward the third wall portion 230 at the bent portion 333 on the right side of the bent portion 335. You can.

FIG. 10 is a perspective view showing an example of the reinforcing member 350. FIG. 11 is an exploded perspective view showing an example of the reinforcing member 350. The reinforcing member 350 may have a first plate-shaped portion 310 in which the slit 351 is formed and a second plate-shaped portion 320 in which the slit 352 is formed.

The second plate-shaped portion 320 is inserted into the slit 351 of the first plate-shaped portion 310. The first plate-shaped portion 310 is inserted into the slit 352 of the second plate-shaped portion 320. The slit 351 is at the center of the Z direction and extends in the Y direction. The width of the slit 351 corresponds to the plate thickness of the second plate-shaped portion 320. The slit 352 is at the center of the X direction and extends in the Z direction. The width of the slit 352 corresponds to the plate thickness of the first plate-shaped portion 310.

In the reinforcing member 350, the second plate-shaped portion 320 is inserted into the slit 351 and the first plate-shaped portion 310 is inserted into the slit 352, and the first plate-shaped portion 310 and the second plate-shaped portion 320 are arranged so as to intersect with each other. It's okay. The first plate-shaped portion 310 and the second plate-shaped portion 320 may be joined by welding. The first plate-shaped portion 310 and the second plate-shaped portion 320 may be joined by unidirectional welding such as laser welding or arc welding. Welding is performed on the portion of the second plate-shaped portion 320 inserted into the slit 351 and the portion of the first plate-shaped portion 310 inserted into the slit 352, and the first plate-shaped portion 310 and the second plate are welded. The shape portions 320 may be joined.

The material of the first plate-shaped portion 310 may be different from the material of the second plate-shaped portion 320. Different materials may mean different materials. One of the first plate-shaped portion 310 and the second plate-shaped portion 320 may be formed from a steel plate, and the other of the first plate-shaped portion 310 and the second plate-shaped portion 320 may be formed from an aluminum alloy plate. The first plate-shaped portion 310 may be formed from a metal plate such as a steel plate having a first tensile strength, and the second plate-shaped portion may be a metal such as a steel plate having a second tensile strength different from the first tensile strength. It may be molded from a plate. Since the tensile strength of the first plate-shaped portion 310 and the tensile strength of the second plate-shaped portion 320 are different, the reaction forces in the X direction, the Y direction, and the Z direction can be made different. The material of the first plate-shaped portion 310 may be the same as the material of the second plate-shaped portion 320. The same material may mean the same material.

The plate thickness of the first plate-shaped portion 310 may be different from the plate thickness of the second plate-shaped portion 320. The plate thickness of the first plate-shaped portion 310 may be the same as the plate thickness of the second plate-shaped portion 320.

FIG. 12 is a perspective view showing an example of the reinforcing member 360. FIG. 13 is a front view showing an example of the reinforcing member. The reinforcing member 36 may have a plurality of L-shaped members. The L-shaped member may be an equilateral angle steel or an equilateral angle steel. The L-shaped member may include a first L-shaped member and a second L-shaped member.

The first L-shaped member may include a first portion 410 of the first plate-shaped portion 310 and a third portion 430 of the second plate-shaped portion 320. The first portion 410 of the first plate-shaped portion 310 may include a portion above the second plate-shaped portion 320. The first portion 410 may include one end 311 of the first plate-shaped portion 310. The third portion 430 of the second plate-shaped portion 320 may include a portion on the right side of the first plate-shaped portion 310. The third portion 430 may include the other end 322 of the second plate-shaped portion 320. The portion including one end 321 of the second plate-shaped portion 320 may be referred to as the third portion 430.

The second L-shaped member may include a second portion 420 of the first plate-shaped portion 310 and a fourth portion 440 of the second plate-shaped portion 320. The second portion 420 of the first plate-shaped portion 310 may include a portion below the second plate-shaped portion 320. The third portion 430 of the second plate-shaped portion 320 may include a portion on the left side of the first plate-shaped portion 310. The fourth portion 440 may include one end 321 of the second plate-shaped portion 320. The portion including the other end 322 of the second plate-shaped portion 320 may be the fourth portion 440.

The corner portions of the first L-shaped member and the second L-shaped member may be joined to each other, and the first plate-shaped portion 310 and the second plate-shaped portion 320 may be arranged so as to intersect each other.

FIG. 14 is a perspective view showing an example of the reinforcing member 370. FIG. 15 is a front view showing an example of the reinforcing member 370. The reinforcing member 370 may include a plurality of materials. The first plate-shaped portion 310 of the reinforcing member 370 may have a first portion 410 and a second portion 420 as a plurality of materials. The second plate-shaped portion 320 of the reinforcing member 370 may have a third portion 430 and a fourth portion 440 as a plurality of materials. In the reinforcing member 370, the end portion of the third portion 430 and the end portion of the fourth portion 440 facing each other in the X direction may be joined. The first portion 410 and the second portion 420 may be arranged so as to sandwich the second plate-shaped portion 320 in the Z direction. The first portion 410 and the second portion 420 may be joined to the second plate-shaped portion 320.

The end of the first portion 410 and the end of the second portion 420 facing each other in the Z direction may be joined. The third portion 430 and the fourth portion 440 may be arranged so as to sandwich the first plate-shaped portion 310 in the X direction. The third portion 430 and the fourth portion 440 may be joined to the first plate-shaped portion 310.

FIG. 16 is a perspective view showing an example of the reinforcing member 380. FIG. 17 is a front view showing an example of the reinforcing member 380. The reinforcing member 380 may include a first plate-shaped portion 310 having a plurality of materials and a second plate-shaped portion 320 made of a single material. The first plate-shaped portion 310 may have a first portion 410 and a second portion 420 as a plurality of materials. The first portion 410 and the second portion 420 may be arranged so as to sandwich the second plate-shaped portion 320 in the Z direction. The first portion 410 and the second portion 420 may be joined to the second plate-shaped portion 320.

The reinforcing member 380 may include a first plate-shaped portion 310 made of a single material and a second plate-shaped portion 320 having a plurality of materials. The second plate-shaped portion 320 may have a third portion 430 and a fourth portion 440 as a plurality of materials. The third portion 430 and the fourth portion 440 may be arranged so as to sandwich the first plate-shaped portion 310 in the X direction. The third portion 430 and the fourth portion 440 may be joined to the first plate-shaped portion 310.

FIG. 18 is a perspective view showing an example of the reinforcing member 390. FIG. 19 is a side view showing an example of the reinforcing member 390. The reinforcing member 390 may have a first plate-shaped portion 310 in which the slit 391 is formed, and a second plate-shaped portion 320 inserted into the slit 391. The slit 391 extends along the Y direction. The length of the slit 391 in the Y direction may be longer than the length of the first plate-shaped portion 310 in the Y direction. The width of the slit 391 may be larger than the plate thickness of the first plate-shaped portion 310. The length of the first plate-shaped portion 310 in the Y direction may be different from the length of the second plate-shaped portion 320 in the Y direction. The second plate-shaped portion 320 may be inserted into the slit 391 of the first plate-shaped portion 310 and arranged so as to intersect the first plate-shaped portion 310. The second plate-shaped portion 320 may be inserted into the slit 391 and welded to the first plate-shaped portion 310 at the portion.

The reinforcing member 390 may have a second plate-shaped portion 320 in which the slit 391 is formed, and a first plate-shaped portion 310 inserted into the slit 391. The length of the slit 391 in the Y direction may be longer than the length of the first plate-shaped portion 310 in the Y direction. The width of the slit 391 may be larger than the plate thickness of the second plate-shaped portion 320. The first plate-shaped portion 310 may be inserted into the slit 391 of the second plate-shaped portion 320 and arranged so as to intersect the second plate-shaped portion 320. The first plate-shaped portion 310 may be inserted into the slit 391 and welded to the second plate-shaped portion 320 at the portion.

FIG. 20 is a perspective view showing an example of the structure 500. The structure 500 may include a skeleton member 200 having slits formed therein. The first wall portion 210 of the skeleton member 200 may have a first slit 213 into which one end 311 of the first plate-shaped portion 310 is inserted. The second wall portion 220 of the skeleton member 200 may have a second slit 223 into which the other end 312 of the first plate-shaped portion 310 is inserted. The skeleton member 200 may include only one of the first slit 213 and the second slit 223. One end 311 of the first plate-shaped portion 310 may be joined to the inner surface of the first wall portion 210 by welding or the like without passing through the first slit 213. The other end 312 of the first plate-shaped portion 310 may be joined to the inner surface of the second wall portion 220 by welding or the like without passing through the second slit 223.

The first slit 213 and the second slit 223 extend along the Y direction. The width of the first slit 213 and the second slit 223 may be larger than the plate thickness of the first plate-shaped portion 310. One end 311 of the first plate-shaped portion 310 may be inserted into the first slit 213 and joined to the first wall portion 210. The other end 312 of the first plate-shaped portion 310 may be inserted into the second slit 223 and joined to the second wall portion 220.

The third wall portion 230 of the skeleton member 200 may have a third slit 233 into which one end 321 of the second plate-shaped portion 320 is inserted. The third slit 233 extends along the Y direction. The width of the third slit 233 may be larger than the plate thickness of the second plate-shaped portion 320. One end 321 of the second plate-shaped portion 320 may be inserted into the third slit 233 and joined to the third wall portion 230.

The fourth wall portion 240 of the skeleton member 200 may have a fourth slit 243 into which the other end 322 of the second plate-shaped portion 320 is inserted. The fourth slit 243 extends along the Y direction. The width of the fourth slit 243 may be larger than the plate thickness of the second plate-shaped portion 320. The other end 322 of the second plate-shaped portion 320 may be inserted into the fourth slit 243 and joined to the fourth wall portion 240. The skeleton member 200 may include only one of the third slit 233 and the fourth slit 243. One end 321 of the second plate-shaped portion 320 may be joined to the inner surface of the third wall portion 230 by welding or the like without passing through the third slit 233. The other end 322 of the second plate-shaped portion 320 may be joined to the inner surface of the fourth wall portion 240 by welding or the like without passing through the fourth slit 243.

The length of the first plate-shaped portion 310 in the Y direction may be the same over the Z direction. In the Y direction, the length of the portion inserted into the first slit 213 may be shorter than the length of the portion not inserted into the first slit 213. In the Y direction, the length of the portion inserted into the second slit 223 may be shorter than the length of the portion not inserted into the second slit 223.

The length of the second plate-shaped portion 320 in the Y direction may be the same over the X direction. In the Y direction, the length of the portion inserted into the third slit 233 may be shorter than the length of the portion not inserted into the third slit 233. In the Y direction, the length of the portion inserted into the fourth slit 243 may be shorter than the length of the portion not inserted into the fourth slit 243.

Next, the manufacturing method of the structure will be described. The method for manufacturing the structure 500 includes a step of arranging the reinforcing member 300 in the opening of the first member 201, a step of joining one end 311 of the first plate-shaped portion 310 to the first wall portion 210, and a first plate. The stage of joining the other end 312 of the shape portion 310 to the second wall portion, the stage of joining one end 321 of the second plate-shaped portion 320 to the third wall portion 230, and the first flange portion 250 and the second flange portion 260. It may include a step of arranging the second member 202 on the top and a step of joining the first flange portion 250 and the second flange portion 260.

The "inside the opening of the first member 201" may include a region surrounded by the first wall portion 210, the second wall portion 220, and the third wall portion 230. At the stage of arranging the reinforcing member 300 in the opening of the first member 201, the reinforcing member 300 can be arranged in the opening from the X direction.

The step of arranging the reinforcing member 300 in the opening of the first member 201 may include a step of inserting one end 311 of the first plate-shaped portion 310 into the first slit 213 formed in the first wall portion 210. The step of arranging the reinforcing member 300 in the opening of the first member 201 may include a step of inserting the other end 312 of the first plate-shaped portion 310 into the second slit 223 formed in the second wall portion 220. The step of arranging the reinforcing member 300 in the opening of the first member 201 may include a step of inserting one end 321 of the second plate-shaped portion 320 into the third slit 233 formed in the third wall portion 230.

At the stage of joining one end 311 of the first plate-shaped portion 310 to the first wall portion 210, one end 311 of the first plate-shaped portion 310 is joined to the first wall portion 210 by laser welding from the outside of the first wall portion 210. May include a step of joining to.

At the stage of joining one end 311 of the first plate-shaped portion 310 to the first wall portion 210, the first plate-shaped portion is formed by laser welding from the outside of the first wall portion 210 while tracking along the first slit 213. A step of joining the 310 to the first wall portion 210 may be included. At the stage of joining one end 311 of the first plate-shaped portion 310 to the first wall portion 210, one end 311 of the first plate-shaped portion 310 inserted into the first slit 213 may be monitored and tracked.

At the stage of joining one end 311 of the first plate-shaped portion 310 to the first wall portion 210, a filler wire is supplied from the outside of the first wall portion 210 while tracking along the first slit 213 and laser welding is performed. , The step of joining the first plate-shaped portion 310 to the first wall portion 210 may be included.

At the stage of joining the other end 312 of the first plate-shaped portion 310 to the second wall portion 220, the other end 312 of the first plate-shaped portion 310 is attached to the second wall by laser welding from the outside of the second wall portion 220. It may include a step of joining to the portion 220.

At the stage of joining the other end 312 of the first plate-shaped portion 310 to the second wall portion 220, the first plate-shaped portion is formed by laser welding from the outside of the second wall portion 220 while tracking along the second slit 223. A step of joining the portion 310 to the second wall portion 220 may be included. At the stage of joining the other end 312 of the first plate-shaped portion 310 to the second wall portion 220, the other end 312 of the first plate-shaped portion 310 inserted into the second slit 223 may be monitored and tracked.

At the stage of joining the other end 312 of the first plate-shaped portion 310 to the second wall portion 220, a filler wire is supplied from the outside of the second wall portion 220 while tracking along the second slit 223 for laser welding. This may include a step of joining the first plate-shaped portion 310 to the second wall portion 220.

At the stage of joining one end 321 of the second plate-shaped portion 320 to the third wall portion 230, one end 321 of the second plate-shaped portion 320 is joined to the third wall portion 230 by laser welding from the outside of the third wall portion 230. May include a step of joining to.

At the stage of joining one end 321 of the second plate-shaped portion 320 to the third wall portion 230, the second plate-shaped portion is formed by laser welding from the outside of the third wall portion 230 while tracking along the third slit 233. It may include a step of joining the 320 to the third wall portion 230. At the stage of joining one end 321 of the second plate-shaped portion 320 to the third wall portion 230, one end 321 of the second plate-shaped portion 320 inserted into the third slit 233 may be monitored and tracked.

At the stage of joining one end 321 of the second plate-shaped portion 320 to the third wall portion 230, a filler wire is supplied from the outside of the third wall portion 230 while tracking along the third slit 233 and laser welding is performed. , The step of joining the second plate-shaped portion 320 to the third wall portion 230 may be included.

At the stage of arranging the second member 202 on the first flange portion 250 and the second flange portion 260, the first flange portion 250 is formed so as to cover the opening of the first member 201 and form a closed cross-sectional structure together with the first member 201. The second member 202 may be arranged on the second flange portion 260. At the stage of arranging the second member 202 on the first flange portion 250 and the second flange portion 260, the other end 322 of the second plate-shaped portion 320 is inserted into the fourth slit 243 formed in the second member 202. It may include steps.

At the stage of joining the other end 322 of the second plate-shaped portion 320 to the second member 202, the second plate-shaped portion is laser-welded from the outside of the second member 202 while tracking along the fourth slit 243. The step of joining the other end 322 of the 320 to the second member 202 may be included.

21 to 26 are views showing the other end 312 of the second slit 223 and the first plate-shaped portion 310. 21 to 26 show the case of the second slit 223, but the same applies to the case of the first slit 213, the third slit 233, and the fourth slit 243. FIG. 21 shows a case where the other end 312 of the first plate-shaped portion 310 is arranged at a normal position with respect to the second slit 223. The normal position is that the center of the slit and the center of the other end 312 coincide with each other in the X and Y directions, and the other end 312 is arranged parallel to the center line along the longitudinal direction of the slit. It may be in a state.

FIG. 22 shows a case where the other end 312 of the first plate-shaped portion 310 is closer to one side with respect to the second slit 223. For example, the other end 312 of the first plate-shaped portion 310 is deviated in the X direction with respect to the center line along the longitudinal direction of the second slit 223.

FIG. 23 shows a case where the other end 312 of the first plate-shaped portion 310 is inclined with respect to the second slit 223. For example, the other end 312 of the first plate-shaped portion 310 is inclined with respect to the center line along the longitudinal direction of the second slit 223.

FIG. 24 shows a case where the second slit 223 is larger than the other end 312 of the first plate-shaped portion 310. For example, the opening width of the second slit 223 is larger than the other end 312 of the first plate-shaped portion 310 in the X direction.

FIG. 25 shows a case where the second slit 223 is processed so as to be displaced from the other end 312 of the first plate-shaped portion 310. For example, the position of the second slit 223 deviates from the designed position in the X direction.

A laser tracking system can be used in the method of manufacturing the structure. FIG. 26 shows a case where the other end 312 of the first plate-shaped portion 310 is inclined with respect to the second slit 223. In the case of laser welding without tracking, the laser is irradiated at a predetermined position. For example, the laser is irradiated along the center line of the second slit 223. When there is tracking, it is possible to irradiate the laser while detecting the corner portion which is the edge of the first plate-shaped portion 310 and monitoring the irradiation target position.

For example, in the cases shown in FIGS. 22 to 26, laser irradiation may be performed while tracking. In the structure manufacturing method, by using laser tracking, it is possible to absorb variations in the position accuracy of the other end 312 of the first plate-shaped portion 310 with respect to the second slit 223, the processing accuracy of the second slit 223, and the like. It is possible to reduce the occurrence of defects due to external factors. Robustness can be improved in the method for manufacturing the structure. In the method for manufacturing the structure, the welded portion may be repaired by using a repair laser welder.

Next, the joining of the first plate-shaped portion 310 and the second plate-shaped portion 320 will be described. The method for manufacturing the structure may include a step of joining the first plate-shaped portion 310 and the second plate-shaped portion 320. For example, in the reinforcing member 350 shown in FIGS. 10 and 11, after the second plate-shaped portion 320 is inserted into the slit 351 and the first plate-shaped portion 310 is inserted into the slit 352, the positions of the

slits

351 and 352 are reached. Laser welding may be performed. As a result, the reinforcing member 350 can be manufactured by joining the first plate-shaped portion 310 and the second plate-shaped portion 320. For example, laser welding without a filler may be performed on the intersection of the first plate-shaped portion 310 and the second plate-shaped portion. The same can be applied to a reinforcing member of a type different from the reinforcing member 350.

When manufacturing a reinforcing member, welding by a low heat input method is performed on the intersection of the first plate-shaped portion 310 and the second plate-shaped portion 320 in consideration of assembling to the hat-shaped first member 201. You may use it. Further, laser welding may be performed by supplying a filler wire to the intersection of the first plate-shaped portion 310 and the second plate-shaped portion 320.

FIG. 27 is a schematic view showing an example of a laser welding apparatus. FIG. 28 is a schematic view showing an example of a laser welding processing head with a wire torch. The laser welding apparatus may include a laser welding processing head 601 with a wire torch. The laser welding processing head 601 can supply the filler wire 602, which is a filler wire, to the welded portion. In the method for manufacturing a structure, such a laser welding apparatus may be used to perform laser welding while supplying filler wires.

FIG. 29 is a schematic perspective view showing a stage of joining the first flange portion 250 and the second flange portion 260 and the second member 202. At the stage of joining the first flange portion 250 and the second flange portion 260 and the second member 202, resistance spot welding may be used.

Spot welding guns

611 and 612, which are electrodes, are arranged on the portions where the first flange portion 250 and the second flange portion 260 and the second member 202 face each other, and resistance spot welding is performed to perform the first. The member 201 and the second member are joined. A plurality of spot welded portions 613 are formed on the first flange portion 250 and the second flange portion 260 at predetermined intervals in the Y direction.

According to the structure 100 according to the embodiment, since the reinforcing member 300 in which the first plate-shaped portion 310 and the second plate-shaped portion 320 intersect is provided, the shock absorption energy can be improved. In the structure 100, the impact absorption energy in the Y direction can be improved. The impact absorption energy at the time of axial crushing is improved. In the structure 100 which is a front side member, the impact absorption energy in the front-rear direction of the vehicle is improved, and the possibility of deformation of the driver's cab is reduced. Since the structure 100 includes the reinforcing member 300, the bending deformation strength is improved.

According to the structure 100, the impact energy can be absorbed with a small stroke, so that the length of the structure 100 can be shortened. According to the structure 100, the impact energy can be absorbed with a small stroke, so that the cross section of the structure 100 in the longitudinal direction may be reduced. As a result, in the vehicle to which the structure 100 is attached, the size of the structure 100 is reduced and the degree of freedom in design is improved.

For example, when a structure such as a front side member is composed of an extruded aluminum alloy, it is difficult to change the cross-sectional shape of the structure. On the other hand, according to the structure 100, the reinforcing member 300 may be formed separately from the skeleton member 200. The structure 100 may include a section in which the reinforcing member 300 is arranged and a section in which the reinforcing member 300 is not arranged in the longitudinal direction. In the structure 100, the reinforcing member 300 may be arranged as a whole or the reinforcing member 300 may be partially arranged in the longitudinal direction. Thereby, the axial strength and the bending strength can be changed in the longitudinal direction of the structure 100.

The structure 100 can include a plurality of types of reinforcing members 300. For example, the structure 100 may include a reinforcing member 300 in which a bent portion is not formed and a reinforcing member 301 in which a bent portion 331 is formed. The reinforcing member 300 may be arranged in at least a part of the skeleton member 200. The reinforcing member 300 may be arranged at least in a part in the longitudinal direction in the skeleton member 200. That is, the structure 100 may include a section in which the reinforcing member 300 is arranged and a section in which the reinforcing member 301 is arranged in the longitudinal direction. Thereby, the axial strength and the bending strength can be changed in the longitudinal direction of the structure 100.

The structure 100 can be provided with a reinforcing member in which the bent portions 331 to 335 are formed. In the structure 100, the shape in the XZ cross section may be changed by changing the position and quantity of the bent portion. Thereby, the strength can be changed in the XZ cross section. As a result, it is possible to arbitrarily set a portion that is easily deformed during shock absorption. The angle at the bent portion when viewed from the longitudinal direction of the structure 100 may be a right angle, an acute angle, or an obtuse angle.

In the structure 100, the plate thickness and material of the first plate-shaped portion 310 and the second plate-shaped portion 320 of the reinforcing member 300 can be changed. The material of the first plate-shaped portion 310 and the material of the second plate-shaped portion 320 may be different. The plate thickness of the first plate-shaped portion 310 and the plate thickness of the second plate-shaped portion 320 may be different. The first plate-shaped portion 310 may include a first portion 410 and a second portion 420 made of different materials. The second plate-shaped portion 320 may include a third portion 430 and a fourth portion 440 made of different materials. Thereby, the strength can be changed in the XZ cross section.

Further, in the longitudinal direction of the structure 100, the length of the first plate-shaped portion 310 and the length of the second plate-shaped portion 320 may be different. In the longitudinal direction of the structure 100, the first plate-shaped portion 310 may be longer than the second plate-shaped portion 320. In the longitudinal direction of the structure 100, the second plate-shaped portion 320 may be longer than the first plate-shaped portion 310. Thereby, the axial strength and the bending strength can be changed in the longitudinal direction of the structure 100.

In the plurality of types of structures 100, a common first member 201 can be used, and reinforcing members 300 to 306 having different structures can be used as the reinforcing members. As a result, the structure 100, which is a front side member corresponding to a plurality of types of vehicle types, can be easily prepared. The effort of designing for each vehicle type can be simplified.

According to the structure 500, since the first slit 213 is formed in the first wall portion 210, the reinforcing member 300 can be easily positioned. Further, the welding construction position can be easily grasped from the outside of the structure 500. The same applies to the second wall portion 220, the third wall portion 230, and the fourth wall portion 240 as well as the first wall portion 210. This makes it easy to confirm the construction position when joining the reinforcing member 300. For example, welding defects can be easily detected. Further, according to the structure 500, welding can be performed from the outside of the structure 500. According to the structure 500, the welded portion can be inspected and repaired from the outside of the structure 500, and the reliability of the structure 500 can be improved.

According to the structure manufacturing method, the first member 201 and the reinforcing member 300 can be joined by laser welding. In laser welding, deformation due to thermal strain can be suppressed as compared with heat conduction type welding such as arc welding and plasma welding, and dimensional accuracy of parts after welding is ensured. As a result, variations in the mounting positions of the first plate-shaped portion 310 and the second plate-shaped portion 320 of the reinforcing member 330 are suppressed. Further, for example, in the first slit 213, the variation in the gap around one end 311 of the first plate-shaped portion 310 inserted into the first slit 213 can be suppressed, so that highly reliable welding work can be realized. As a result, it is possible to manufacture a structure with improved reliability. The structure may be joined by arc hybrid laser welding, and can be joined by using a joining method in which a HAZ (Heat-Affected Zone) portion having a HAZ (Heat-Affected Zone) portion equal to or less than that of arc hybrid laser welding is formed.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various changes or improvements can be made to the above embodiments. It is clear from the claims that the form with such modifications or improvements may also be included in the technical scope of the invention.

The order of execution of operations, procedures, steps, steps, etc. in the devices, systems, programs, and methods shown in the claims, specifications, and drawings is particularly "before" and "prior to". It should be noted that it can be realized in any order unless the output of the previous process is used in the subsequent process. Even if the claims, the specification, and the operation flow in the drawings are explained using "first", "next", etc. for convenience, it means that it is essential to carry out in this order. is not it.

100,500 Structure 200 Skeleton member 201 First member 202 Second member 210 First wall part 211 One end part 212 One end part 213 First slit 220 Second wall part 221 One end part 222 One end part 223 Second slit 230 Second 3 Wall part 233 Third slit 240 Fourth wall part 243 Fourth slit 250 First flange part 260 Second flange part 300 to 306, 350, 360, 370, 380, 390 Reinforcing member 310 First plate-shaped part 311 One end 312 End end 320 Second plate-shaped part 321 One end 322 One end 331 to 335 Bending part 351,352,391 Slit 410 First part 420 Second part 430 Third part 440 Fourth part 601 Laser welding processing head 602 Filler wire 611 612 Spot weld gun 613 Spot weld

Claims

A skeletal member with a closed cross-section structure and
It is composed of a separate body from the skeleton member, and includes a reinforcing member arranged in the skeleton member.
The reinforcing member has a first plate-shaped portion and a second plate-shaped portion that intersects the first plate-shaped portion.
One end of the first plate-shaped portion is joined to the first wall portion of the skeleton member.
The other end of the first plate-shaped portion is joined to the second wall portion of the skeleton member facing the first wall portion.
One end of the second plate-shaped portion is joined to a third wall portion that connects one end portion of the first wall portion of the skeleton member and one end portion of the second wall portion.
A structure in which the other end of the second plate-shaped portion is joined to a fourth wall portion of the skeleton member facing the third wall portion.
The first wall portion has a first slit into which the one end of the first plate-shaped portion is inserted.
The structure according to claim 1, wherein the second wall portion has a second slit into which the other end of the first plate-shaped portion is inserted.
The structure according to claim 2, wherein the third wall portion has a third slit into which the one end of the second plate-shaped portion is inserted.
The structure according to claim 3, wherein the fourth wall portion has a fourth slit into which the other end of the second plate-shaped portion is inserted.
The skeletal member
The first wall portion, the second wall portion, the third wall portion, the first flange portion extending outward from the other end portion of the first wall portion, and the outer side from the other end portion of the second wall portion. A first member having a second flange portion extending to
The structure according to any one of claims 1 to 4, further comprising a second member joined to the first flange portion and the second flange portion and forming a closed cross-sectional structure together with the first member.
The structure according to any one of claims 1 to 5, wherein at least one of the first plate-shaped portion and the second plate-shaped portion includes at least one bent portion.
The other of the first plate-shaped portion and the second plate-shaped portion is inserted into one of the first plate-shaped portion and the second plate-shaped portion, and the second plate-shaped portion is inserted into the first plate-shaped portion. The structure according to any one of claims 1 to 6, which has slits for arranging the portions so as to cross each other.
The structure according to any one of claims 1 to 7, wherein the material of the first plate-shaped portion is different from the material of the second plate-shaped portion.
The structure according to any one of claims 1 to 8, wherein the thickness of the first plate-shaped portion is different from the thickness of the second plate-shaped portion.
The reinforcing member includes a first L-shaped member and a second L-shaped member.
The first L-shaped member includes a first portion of the first plate-shaped portion and a third portion of the second plate-shaped portion.
The structure according to any one of claims 1 to 7, wherein the second L-shaped member includes a second portion of the first plate-shaped portion and a fourth portion of the second plate-shaped portion.
The structure according to claim 10, wherein the material of the first portion including the one end of the first plate-shaped portion is different from the material of the second portion including the other end of the first plate-shaped portion.
The structure according to claim 11, wherein the material of the third portion including the one end of the second plate-shaped portion is different from the material of the fourth portion including the other end of the second plate-shaped portion.
The material of the first part is the same as the material of the third part.
The structure according to claim 12, wherein the material of the second part is the same as the material of the fourth part.
A skeletal member with a closed cross-section structure and
It is composed of a separate body from the skeleton member, and includes a reinforcing member arranged in the skeleton member.
The skeleton member has a first wall portion and has a first wall portion.
The first wall portion is a structure having a first slit into which one end of the reinforcing member is inserted.
The skeleton member further has a second wall portion facing the first wall portion, and the skeleton member further includes a second wall portion.
The structure according to claim 14, wherein the second wall portion has a second slit into which the other end of the reinforcing member is inserted.
The skeleton member includes a third wall portion that connects the first wall portion and the second wall portion, one end portion of the first wall portion, and one end portion of the second wall portion, and the first wall portion. A first member having a first flange portion extending outward from the other end portion of the second wall portion and a second flange portion extending outward from the other end portion of the second wall portion.
The structure according to claim 15, further comprising a second member joined to the first flange portion and the second flange portion to form a closed cross-sectional structure together with the first member.
The structure according to any one of claims 1 to 16, wherein the structure is a skeleton structure for a vehicle.
The structure according to any one of claims 1 to 17, wherein the reinforcing member is arranged in at least a part of the skeleton member.
A first wall portion and a second wall portion facing each other, a third wall portion connecting one end portion of the first wall portion and one end portion of the second wall portion, and the other end portion of the first wall portion. In the opening of the first member having the first flange portion extending outward from the second wall portion and the second flange portion extending outward from the other end portion of the second wall portion, the first plate-shaped portion and the first plate-shaped portion A reinforcing member having a second plate-shaped portion intersecting with the first plate-shaped portion is arranged such that one end of the first plate-shaped portion is arranged on the first wall portion side and the other end of the first plate-shaped portion is arranged on the second wall portion side. And the stage of arranging so that one end of the second plate-shaped portion is arranged on the third wall portion side.
At the stage of joining one end of the first plate-shaped portion to the first wall portion,
At the stage of joining the other end of the first plate-shaped portion to the second wall portion,
At the stage of joining one end of the second plate-shaped portion to the third wall portion,
A step of arranging the second member on the first flange portion and the second flange portion in order to cover the opening of the first member and form a closed cross-sectional structure together with the first member.
The stage of joining the first flange portion, the second flange portion, and the second member,
A method for manufacturing a structure, which comprises a step of joining the other end of the second plate-shaped portion to the second member.
At the stage of joining one end of the first plate-shaped portion to the first wall portion, the one end of the first plate-shaped portion is joined to the first wall portion by welding from the outside of the first wall portion. Including the stage of
At the stage of joining the other end of the first plate-shaped portion to the second wall portion, the other end of the first plate-shaped portion is welded from the outside of the second wall portion to the second wall portion. Including the stage of joining to
At the stage of joining one end of the second plate-shaped portion to the third wall portion, the one end of the second plate-shaped portion is joined to the third wall portion by welding from the outside of the third wall portion. Including the stage of
The method for manufacturing a structure according to claim 19.
The step of arranging the reinforcing member in the opening of the first member is
One end of the first plate-shaped portion is inserted into the first slit formed in the first wall portion, and the other end of the first plate-shaped portion is inserted into the second slit formed in the second wall portion. The step of arranging the reinforcing member in the opening of the first member by inserting one end of the second plate-shaped portion into the third slit formed in the third wall portion is included.
At the stage of joining one end of the first plate-shaped portion to the first wall portion, the first plate-shaped portion is welded from the outside of the first wall portion while being tracked along the first slit. Including the step of joining one end to the first wall portion.
At the stage of joining the other end of the first plate-shaped portion to the second wall portion, the first plate-shaped portion is welded from the outside of the second wall portion while tracking along the second slit. Including the step of joining the other end of the second wall portion to the second wall portion.
At the stage of joining one end of the second plate-shaped portion to the third wall portion, the second plate-shaped portion is formed by welding from the outside of the third wall portion while tracking along the third slit. The method for manufacturing a structure according to claim 20, further comprising a step of joining one end to the third wall portion.
At the stage of joining one end of the first plate-shaped portion to the first wall portion, the filler wire is supplied from the outside of the first wall portion and welded while trucking along the first slit. Including the step of joining one end of the first plate-shaped portion to the first wall portion.
At the stage of joining the other end of the first plate-shaped portion to the second wall portion, a filler wire is supplied from the outside of the second wall portion and welded while tracking along the second slit. Including the step of joining the other end of the first plate-shaped portion to the second wall portion.
At the stage of joining one end of the second plate-shaped portion to the third wall portion, the filler wire is supplied from the outside of the third wall portion and welded while tracking along the third slit. The method for manufacturing a structure according to claim 21, which comprises a step of joining one end of a second plate-shaped portion to the third wall portion.
The step of arranging the second member on the first flange portion and the second flange portion includes a step of inserting the other end of the second plate-shaped portion into the fourth slit formed in the second member. ,
At the stage of joining the other end of the second plate-shaped portion to the second member, the second plate-shaped portion is formed by welding from the outside of the second member while tracking along the fourth slit. The method for manufacturing a structure according to claim 21 or 22, which comprises a step of joining the other end to the second member.