JP2018062280A - Manufacturing method of vehicle door frame and vehicle side sash - Google Patents

Abstract

For example, a vehicle door frame having a novel configuration in which the thickness of an upper portion of an inner member is different from the thickness of a fixing portion is obtained. A side sash has an outer member and an inner member. The inner member 15 includes an upper member 17 and a lower member 18 that is joined to the upper member 17 below the upper member 17 and has a larger plate thickness than the upper member 17. The outer member and the upper member 17 are provided with a hemming joint. The lower member 18 is provided with a fixing portion 13a that is fixed to the door panel. [Selection] Figure 3

Description

  The present invention relates to a method for manufacturing a vehicle door frame and a vehicle side sash.

  Conventionally, there is a vehicle door frame provided with an upper sash and a side sash. As a configuration of the side sash, a configuration is known in which a lower portion of an inner member and a plate constituting a fixing portion fixed to a door panel are overlapped in the thickness direction of the inner member (for example, Patent Document 1).

JP 2013-56648 A

  However, in the configuration in which the inner member and the plate constituting the fixed portion are overlapped, there is a problem that a step is generated at the boundary of the overlapped portion or the thickness is partially increased.

  Accordingly, one of the objects of the present invention is to obtain a vehicle door frame and a vehicle side sash having a novel configuration in which, for example, the thickness of the upper portion of the inner member and the thickness of the fixing portion are different.

  The vehicle door frame of the present invention includes, for example, an upper sash, an outer member that is connected to an end portion of the upper sash and extends in the vehicle vertical direction, and is positioned on the vehicle inner side of the outer member and extends in the vehicle vertical direction. An inner member, and the inner member includes an upper member, and a lower member that is joined to the upper member on the lower side of the upper member and has a larger plate thickness than the upper member, The outer member and the upper member are wrapped with an end portion of the bent upper member in a direction intersecting with the vehicle vertical direction of the outer member in a direction intersecting with the vehicle vertical direction of the outer member. A hemming joint is provided, and the lower member is provided with a fixing portion that is fixed to the door panel.

  The vehicle door frame includes, for example, a first joint portion having a joining form different from hemming joining, in which the upper member and the outer member are joined.

  The vehicle door frame includes, for example, a second joining portion having a joining form different from hemming joining, in which the fixing portion and the outer member are joined.

  The vehicle side sash manufacturing method of the present invention includes an outer member that extends in the vehicle vertical direction, and an inner member that is positioned on the vehicle inner side of the outer member and extends in the vehicle vertical direction. An upper member having an upper end, and a lower member having a lower end and joined to the upper member on the lower side of the upper member and having a plate thickness larger than the upper member, the outer member and the upper member The member is provided with a hemming joint in which an end of the outer member in a direction intersecting the vehicle vertical direction is wrapped by an end of the upper member in a direction intersecting the vehicle vertical direction, The lower member is a method for manufacturing a vehicle side sash provided with a fixing portion that is fixed to a door panel, the joining end on the opposite side of the upper end of the upper member, and the lower member The lower end of After joining the joining end of the upper member and the joining end of the lower member in a state where the opposite joining ends are abutted with each other, after the joining step, A pressing process for manufacturing the inner member by pressing the upper member and the lower member, and the end of the upper member wraps the end of the outer member after the pressing process. Thus, a hemming process step of folding back the end portion of the upper member by hemming is included.

  In the vehicle side sash manufacturing method, for example, in the joining step, the joining end portion of the upper member and the joining end portion of the lower member are joined by friction stir welding.

  In a vehicle door frame, for example, an inner member of a side sash includes an upper member and a lower member joined to the upper member on the lower side of the upper member and having a plate thickness larger than that of the upper member, and the fixing portion is Since it is provided on the side member, it is possible to obtain a novel configuration in which the thickness of the upper portion of the inner member and the thickness of the fixing portion are different. For example, it is possible to avoid the uselessly thick portions and the occurrence of steps.

FIG. 1 is a schematic and exemplary view of a front door according to an embodiment. Drawing 2 is a figure which looked at the side sash of an embodiment from vehicles back. FIG. 3 is an enlarged view of a portion III in FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a cross-sectional view taken along line VV in FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. FIG. 10 is a flowchart illustrating a manufacturing process of the side sash according to the embodiment.

  Hereinafter, exemplary embodiments of the present invention are disclosed. The configuration of the embodiment shown below, and the operation and result (effect) brought about by the configuration are examples. The present invention can be realized by configurations other than those disclosed in the following embodiments. According to the present invention, it is possible to obtain at least one of various effects (including derivative effects) obtained by the configuration.

  FIG. 1 is a schematic and exemplary view of a front door 100 of the present embodiment. In each figure, directions are shown for convenience. X indicates the right side (the vehicle outer side) in the vehicle width direction, Y indicates the front in the vehicle front-rear direction, and Z indicates the upper side in the vehicle vertical direction.

  The front door 100 shown in FIG. 1 is configured as a front door on the right side of the vehicle. The front door 100 includes a door frame 1 and a door panel 2. The door frame 1 is fixed to the door panel 2 and protrudes upward from the door panel 2. A window opening 3 is provided between the door frame 1 and the upper end of the door panel 2, and a door glass (not shown) moves up and down in the window opening 3. Moreover, the glass run (not shown) comprised by the elastic member is provided in the window opening part 3 side of the door frame 1, and the edge part of a door glass is hold | maintained by a glass run. The door frame 1 is an example of a vehicle door frame.

  The door frame 1 has a front edge 1a extending obliquely upward and rearward from the front end of the door panel 2, an upper edge 1b extending rearward from the front edge 1a, and a rear edge 1d extending downward from the upper edge 1b. . As shown in FIGS. 1 and 2, the upper edge 1b and the rear edge 1d are connected by a corner portion 1c. The door frame 1 has an upper sash 11 including a front edge 1a and an upper edge 1b, and a side sash 13 including a rear edge 1d. That is, the upper sash 11 and the side sash 13 are connected to each other at the corner portion 1c. The upper sash 11 is fixed to the door panel 2 via the fixing part 12 a of the lower member 12, and the side sash 13 is fixed to the door panel 2 via the fixing part 13 a of the side sash 13. When the front door 100 is closed, the upper sash 11 is along the roof panel (not shown) of the vehicle body, and the side sash 13 is along the center pillar (not shown) of the vehicle body. A weather strip (not shown) made of an elastic member is provided on the roof panel side of the upper sash 11 and the center pillar side of the side sash 13. When the front door 100 is closed, the weather strip is elastically deformed, and liquid-tightly blocks between the front door 100 and the body. Moreover, components such as a lock mechanism for locking the front door 100 to the vehicle body (center pillar) are fixed to the fixing portion 13a. In the following description, the window opening 3 side of the door frame 1 may be referred to as an inner peripheral side, and the side opposite to the window opening 3 of the door frame 1 may be referred to as an outer peripheral side. The fixed portion 13a is also called a lock reinforcement or a bracket. The side sash 13 is an example of a vehicle side sash.

  FIG. 2 is a view of the side sash 13 of the present embodiment as viewed from the rear of the vehicle. As shown in FIG. 2, the side sash 13 has an upper end portion 13m and a lower end portion 13n. The side sash 13 is convex toward the vehicle exterior direction, and is curved so as to travel toward the vehicle exterior direction from the upper end portion 13m toward the lower end portion 13n. As shown in FIG. 1, the side sash 13 protrudes upward from the upper end portion of the door panel 2 including the insertion portion 13p inserted into the door panel 2 including the lower end portion 13n and the fixing portion 13a and the upper end portion 13m. Projecting portion 13q. The door panel 2 includes an inner panel and an outer panel that are overlapped with each other, and an insertion portion 13p is positioned in a space between the inner panel and the outer panel.

  FIG. 3 is an enlarged view of a portion III in FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a cross-sectional view taken along line VV in FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG.

  As shown in FIGS. 3 to 8, the side sash 13 includes an outer member 14 and an inner member 15. Each of the outer member 14 and the inner member 15 extends in the vehicle vertical direction. The outer member 14 and the inner member 15 are overlapped and joined to each other in the horizontal direction. The outer member 14 is also referred to as a glass run channel.

  The outer member 14 is a long member formed by roll forming and press forming a plate-like metal material. The material of the outer member 14 is, for example, iron or aluminum. The outer member 14 has a plurality of walls including a vehicle outer side wall 14a, a glass run holding bottom wall 14b, a central standing wall 14c, and a terminal wall 14d. The central standing wall 14c is also referred to as a vehicle inner wall.

  The vehicle outer side wall 14 a is located on the vehicle outer side of the outer member 14. The glass run holding bottom wall 14b extends to the vehicle inner side from the outer peripheral side end portion of the vehicle outer side wall 14a. The central standing wall 14c extends from the glass run holding bottom wall 14b to the inner peripheral side. The central standing wall 14c has a plurality of step portions 14e to 14i that are sequentially arranged from the outer peripheral side toward the inner peripheral side, and is configured to have an uneven shape. The step portion 14e is connected to the glass run holding bottom wall 14b and protrudes in the vehicle interior direction. The step portion 14f is connected to the step portion 14e and protrudes outward from the vehicle. The step portion 14g is connected to the step portion 14f and protrudes in the in-vehicle direction. The step portion 14h is connected to the step portion 14g and protrudes outward from the vehicle. The step portion 14i is located between the step portion 14h and the terminal wall 14d and protrudes in the in-vehicle direction. The terminal wall 14d is bent outward from the inner peripheral side end of the central standing wall 14c.

  Further, the outer member 14 is provided with a plurality of recesses 14s to 14u. The recess 14s is surrounded by the glass run holding bottom wall 14b, the step 14e, and the step 14f. The recess 14t is surrounded by the step 14f, the step 14g, and the step 14h. The recess 14u is surrounded by the step 14h, the step 14i, and the terminal wall 14d.

  Further, the inner member 15 has a different cross-sectional shape at the first position P1 (FIGS. 2 and 3) between the upper end portion 13m and the lower end portion 13n. 9 is a cross-sectional view taken along line IX-IX in FIG. As shown in FIG. 9, the inner member 15 is a long member formed by press-molding a plate-shaped metal material composed of two plate-shaped members (upper member 17 and lower member 18). . The upper member 17 and the lower member 18 are long members extending in the vehicle vertical direction. The material of the inner member 15 is, for example, iron or aluminum. The upper member 17 is provided with an upper end portion 13m, and the lower member 18 is provided with a lower end portion 13n. That is, the upper end 13m is also the upper end of the inner member 15 and the upper member 17, and the lower end 13n is also the lower end of the inner member 15 and the lower member 18. The upper member 17 constitutes at least a part of the upper part 15j of the inner member 15, and the lower member 18 constitutes at least a part of the lower part 15k of the inner member 15. The plate thickness L2 of the lower member 18 is larger than the plate thickness L1 of the upper member 17. In the present embodiment, the upper member 17 and the lower member 18 are joined to each other by the joining portion W3 in a state where they are overlapped with each other in the vehicle vertical direction. That is, the lower member 18 is connected to the upper member 17 on the lower side of the upper member 17 and is not overlapped with the upper member 17 in the horizontal direction (the thickness direction of the upper member 17). In the vicinity of the joint W3, the thickness is formed so as to increase from the upper member 17 toward the lower member 18 (FIG. 9). The joint W3 is provided at the first position P1. The joint portion W3 is formed by, for example, friction stir welding. Friction stir welding is a joining method that places little burden on the environment because the amount of carbon dioxide emission is relatively small.

  As shown in FIGS. 4 to 8, the inner member 15 has a plurality of walls including a vehicle outer side wall 15a, a bottom wall 15b, a vehicle inner side wall 15c, an inclined wall 15d, a folded wall 15e, and an extension wall 15n. Yes. At least a part of the inner member 15 (for example, the vehicle inner side wall 15c) is located on the vehicle inner side (the lower side in FIGS. 4 to 8) of the outer member 14. The vehicle outer wall 15a, the bottom wall 15b, the vehicle inner wall 15c, and the inclined wall 15d are provided on both the upper member 17 and the lower member 18 (FIGS. 4 to 8), and the folding wall 15e is provided only on the upper member 17. The extension wall 15n is provided only on the lower member 18 (FIGS. 7 and 8). The bottom wall 15b is also referred to as an extending portion, and the inclined wall 15d is also referred to as an inner peripheral side wall.

  The vehicle outer wall 15 a is located on the vehicle outer side of the inner member 15. The bottom wall 15b extends from the inner peripheral end of the vehicle outer wall 15a to the vehicle inner side. Further, the vehicle outer side wall 15a is provided with a recess 15r (FIG. 3) that is recessed toward the inner periphery. The outer peripheral side end of the joint W3 faces the bottom of the recess 15r. The bottom wall 15b has an inclined wall 15f, a connecting wall 15g, and an inclined wall 15h. The inclined wall 15f is provided at a position away from the vehicle outer side wall 15a on the inner peripheral side and the vehicle inner side. The connection wall 15g connects the end of the inclined wall 15f on the inner side of the vehicle and the end of the inclined wall 15h on the outer side of the vehicle. The vehicle inner side wall 15c extends from the inclined wall 15h of the bottom wall 15b to the inner peripheral side. The inclined wall 15d gradually moves toward the inner periphery as it moves away from the vehicle inner wall 15c and toward the vehicle outer side.

  As shown in FIGS. 4 and 5, the folding wall 15e is folded back from the vehicle outer end (inner peripheral side end) of the inclined wall 15d to the outer peripheral side and the vehicle inner side. The folding wall 15e is included in the inner peripheral end 15i of the inner member 15.

  As shown in FIGS. 7 and 8, the extending wall 15n extends from the vehicle outer end (inner peripheral side end) of the inclined wall 15d to the inner peripheral side.

  As shown in FIGS. 5 and 8, in the side sash 13, the bottom wall 15b of the inner member 15 is superimposed on the outer peripheral side of the glass run holding bottom wall 14b of the outer member 14, and the glass run holding bottom wall 14b and the bottom wall 15b are overlapped. The overlapping portion is joined by a plurality of joints W1, W2. The joint portions W1 and W2 have a joint form different from the hemming joint, and are, for example, welding or adhesion such as spot welding, friction stir welding, or the like. As shown in FIG. 2, the plurality of joints W <b> 1 and W <b> 2 are provided at intervals in the vehicle vertical direction. That is, the plurality of joint portions W1, W2 are arranged in the vehicle vertical direction. The joint portions W1 and W2 are provided on the upper member 17 and the lower member 18 (fixed portion 13a). The joint portion W1 that joins the upper member 17 and the outer member 14 is an example of a first joint portion, and the joint portion W2 that joins the fixed portion 13a and the outer member 14 is an example of a second joint portion. is there.

  Also, as shown in FIGS. 4 and 5, the inner peripheral end 14 j of the outer member 14 and the inner peripheral end 15 i of the upper member 17 of the inner member 15 are joined by a hemming joint 16. ing. That is, the outer member 14 and the upper member 17 are provided with a hemming joint 16. The hemming joint 16 has a configuration in which an end 14j is wrapped by a folded end 15i. The hemming joint 16 is provided from the upper end to the lower end of the end 15 i of the upper member 17. Here, the end portion 14j is an end portion in a direction intersecting the vehicle vertical direction of the outer member 14 (the longitudinal direction of the outer member 14). Specifically, the end portion 14j is an end portion of the outer member 14 in the extending direction of the outer member 14 that intersects the vehicle vertical direction and the plate thickness direction of the outer member 14. In other words, the end portion 14j is an end portion of the outer member 14 in the short direction. Further, the end portion 15i is an end portion in a direction intersecting the vehicle vertical direction of the inner member 15 (the longitudinal direction of the inner member 15). Specifically, the end portion 15 i is an end portion of the inner member 15 in the vehicle vertical direction and the extending direction of the inner member 15 that intersects the plate thickness direction of the inner member 15. In other words, the end portion 15 i is an end portion of the inner member 15 in the short direction.

  As shown in FIGS. 4 and 5 and the like, the side sash 13 is provided with a glass run holding portion 13b. The glass run holding part 13b is comprised by the vehicle outer side wall 14a of the outer member 14, the glass run holding bottom wall 14b, and the central standing wall 14c (step part 14e-14h). The glass run is fitted into the glass run holding portion 13b. That is, the glass run holding part 13b holds a glass run. The glass run holding part 13b is configured in a bottomed box-shaped cross-sectional shape opened toward the inner peripheral side.

  As shown in FIGS. 4 and 5, etc., in the side sash 13, the glass run holding bottom wall 14b, the central standing wall 14c, and the terminal wall 14d of the outer member 14, the bottom wall 15b of the inner member 15, and the vehicle interior side wall 15c. The inclined wall 15d, the folded wall 15e, and the hemming joint 16 constitute a hollow frame portion 13c. The hollow frame portion 13c has a configuration in which a certain portion in the vehicle vertical direction is partially opened in the horizontal direction (FIG. 4 and the like). The hollow frame portion 13c may have a configuration in which the entire region in the vehicle vertical direction is closed in an annular shape. An inner space 13e is provided in the frame portion 13c. The frame part 13c is provided from the upper end part 13m of the side sash 13 to the fixed part 13a (FIGS. 2 and 3). That is, the frame portion 13c is configured by joining the outer member 14 and at least the upper member 17 among the inner members 15, and extends in the vehicle vertical direction. The lower member 18 may be connected to the outer member 14 or may not be connected to the outer member 14. The upper end portion 13m of the frame portion 13c is connected to the rear end portion 11a of the upper sash 11. The rigidity of the side sash 13 is enhanced by such a frame portion 13c.

  As shown in FIGS. 2, 3, 7, 8, etc., the fixing portion 13 a is provided in the lower portion 15 k of the inner member 15, specifically, the lower member 18. The fixed portion 13a includes a vehicle outer side wall 15a, a bottom wall 15b, a vehicle inner side wall 15c, an inclined wall 15d, and an extending wall 15n below the first position P1. The fixed portion 13a is provided with a contact portion 15q that protrudes toward the inside of the vehicle. The contact portion 15q is overlapped with the door panel 2 and joined to the door panel 2 by welding or the like.

  Further, in the general cross-section portion of the side sash 13 excluding the corner portion 1c, the outer peripheral surface of the bottom wall 15b of the inner member 15 (the surface opposite to the side overlapping the glass run holding bottom wall 14b of the outer member 14). A weatherstrip channel (not shown) is fixed. The weather strip channel and the vehicle outer side wall 15a and the bottom wall 15b of the inner member 15 constitute a weather strip holding portion. A weather strip is fitted inside the weather strip holding portion. That is, the weather strip holder holds the weather strip. When the front door 100 is closed, a part of the weather strip comes into contact with the bottom wall 15b and the edge of the door opening of the vehicle body, and the front door 100 and the vehicle body are liquid-tight. It becomes a state.

  Further, in the side sash 13, the vehicle outer side wall 14 a of the outer member 14 and the vehicle outer side wall 15 a of the inner member 15 constitute a design surface in the side sash 13. The vehicle outer wall 14a and the vehicle outer wall 15a are covered from the vehicle outer side by a garnish (not shown) that is an exterior member.

FIG. 10 is a flowchart showing manufacturing steps of the side sash 13 of the present embodiment.
Hereinafter, a method for manufacturing the side sash 13 will be described. In addition, although the following example is an example of the manufacturing method of the side sash 13 in the state in which the lower member 18 was arranged in the lower side of the upper member 17, it is not restricted to this. For example, in the method for manufacturing the side sash 13, the upper member 17 and the lower member 18 may be arranged in a direction intersecting the vehicle vertical direction (for example, the horizontal direction), or in the manufacturing process, the upper member 17. And the arrangement direction of the lower member 18 may be changed. As shown in FIG. 10, in manufacturing the side sash 13, first, the lower end 17 a and the upper end of the upper member 17 and the upper end 18 a of the lower member 18 are abutted with each other. 18a is joined by friction stir welding (S1: joining step). Thereby, the joint portion W3 is formed. The lower end portion 17 a is an end portion on the opposite side of the upper end portion 13 m of the upper member 17, and the upper end portion 18 a is an end portion on the opposite side of the lower end portion 13 n of the lower member 18. Prior to this joining step, the upper member 17 and the lower member 18 are in a state before being formed, and are, for example, flat. Moreover, joining of the lower end part 17a and the upper end part 18a is not limited to friction stir welding. For example, the joining of the lower end portion 17a and the upper end portion 18a may be welding or adhesion. Moreover, the lower end part 17a and the upper end part 18a are an example of the edge part for joining.

  After the joining process, the inner member 15 is manufactured by pressing the upper member 17 and the lower member 18 (S2: pressing process). Specifically, a plurality of walls including an outer wall 15a, a bottom wall 15b, an inner wall 15c, an inclined wall 15d, and a folded wall 15e are formed on the joined upper member 17 and lower member 18 by pressing. .

  After the press working step, the end portion 15i is folded back by hemming so that the end portion 14j of the outer member 14 in a molded state is wrapped by the end portion 15i of the upper member 17 (S3: hemming step). Thereby, the hemming joint 16 is formed. At this time, a part of the hemming apparatus is placed in the recess 14u. After the hemming process, spot welding is performed on the inner member 15 and the outer member 14 to form the joint portions W1 and W2 (S4: inner member outer member joining step). In addition, the order of a hemming process process (S3) and an inner member outer member joining process (S4) may be reverse.

  As described above, in the present embodiment, for example, the inner member 15 of the side sash 13 is connected to the upper member 17 at the lower side of the upper member 17 and the upper member 17 and is thicker than the upper member 17. A lower member 18. A fixing portion 13 a is provided on the lower member 18. Therefore, according to the present embodiment, it is possible to avoid, for example, a uselessly thick part or a step. Moreover, since the upper member 17 has a smaller plate thickness than the lower member 18, hemming is easily performed. In addition, in the present embodiment, the upper member 17 having a smaller plate thickness among the upper member 17 and the lower member 18 is difficult to perform the hemming process from a portion having a smaller plate thickness to a portion having a larger plate thickness. Since only hemming is performed, the processing is easy.

  Moreover, in this embodiment, the junction part W1 (1st junction part) which joined the upper member 17 and the outer member 14, and the junction part W2 (2nd junction part) which joined the fixing | fixed part 13a and the outer member 14 were joined. ) And are provided. Therefore, it is easy to increase the rigidity of the side sash 13 by these joint portions W1 and W2. Moreover, since these joining parts W1 and W2 are joining forms different from hemming process joining, it is not necessary to provide the recessed part for hemming process.

  In the present embodiment, the hemming joint 16 is provided from the upper end to the lower end of the end 15 i of the upper member 17. That is, the hemming joint 16 is provided at the front portion of the frame portion 13c. A plurality of joints W1 and W2 are arranged along the vehicle vertical direction on the bottom wall 15b of the inner member 15 (the upper member 17 and the lower member 18). That is, a plurality of joint portions W1 and W2 are provided at the rear portion of the frame portion 13c. Therefore, the rigidity and strength of the side sash 13 can be increased. The hemming joint 16 may be provided in the entire region from the upper end portion to the lower end portion of the end portion 15i of the upper member 17 or partially between the upper end portion and the lower end portion of the end portion 15i. It may be provided.

  As mentioned above, although embodiment of this invention was illustrated, the said embodiment is an example and is not intending limiting the range of invention. The present invention can be implemented in various other forms, and various omissions, replacements, combinations, and changes can be made without departing from the spirit of the invention. These various forms and modified forms are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof. In addition, specifications (structure, type, direction, shape, size, length, width, thickness, height, number, arrangement, position, material, etc.) of each configuration and shape, etc. are changed as appropriate. can do. For example, the vehicle door may be a rear door of the vehicle.

  DESCRIPTION OF SYMBOLS 1 ... Door frame (door frame for vehicles), 11 ... Upper sash, 11a ... Rear end part (end part), 13 ... Side sash (side sash for vehicle), 13a ... Fixed part, 13m ... Upper end part, 13n ... Lower end , 14 ... outer member, 14 j ... end, 15 ... inner member 15 i ... end, 16 ... hemming joint, 17 ... upper member, 17a ... lower end (joining end), 18 ... lower member, 18a ... upper end (joining end), 100 ... front door (vehicle door), W1 ... joining part (first joining part), W2 ... joining part (second joining part).

Claims (5)

Upper sash,
A side sash having an outer member connected to an end portion of the upper sash and extending in the vehicle vertical direction; and an inner member positioned on the vehicle inner side of the outer member and extending in the vehicle vertical direction;
With
The inner member includes an upper member, and a lower member that is joined to the upper member on the lower side of the upper member and has a larger plate thickness than the upper member,
Hemming joining in which the outer member and the upper member are wrapped with the end of the bent upper member in the direction intersecting with the vehicle vertical direction in the direction intersecting the vehicle vertical direction of the outer member. Part is provided,
A vehicle door frame, wherein the lower member is provided with a fixing portion fixed to a door panel.   2. The vehicle door frame according to claim 1, further comprising a first joint portion that is joined to the upper member and the outer member and has a joining form different from the hemming joining.   3. The vehicle door frame according to claim 1, further comprising: a second joining portion having a joining form different from hemming joining, in which the fixing portion and the outer member are joined. An outer member extending in the vehicle vertical direction;
An inner member positioned on the inner side of the outer member and extending in the vehicle vertical direction;
Have
The inner member includes an upper member having an upper end, and a lower member having a lower end and joined to the upper member on the lower side of the upper member and having a larger plate thickness than the upper member,
Hemming joining in which the outer member and the upper member are wrapped with the end of the bent upper member in the direction intersecting with the vehicle vertical direction in the direction intersecting the vehicle vertical direction of the outer member. Part is provided,
The lower member is a method for manufacturing a vehicle side sash provided with a fixing portion fixed to a door panel,
The upper member for joining the upper member in a state where the joining end portion on the opposite side of the upper end portion of the upper member and the joining end portion on the opposite side of the lower end portion of the lower member face each other. A joining step of joining the end and the joining end of the lower member;
After the joining step, a pressing process for manufacturing the inner member by pressing the upper member and the lower member;
A hemming step of folding back the end of the upper member by hemming so that the end of the upper member wraps around the end of the outer member after the pressing step;
The manufacturing method of the side sash for vehicles containing this.   The method for manufacturing a side sash for a vehicle according to claim 4, wherein the joining step joins the joining end portion of the upper member and the joining end portion of the lower member by friction stir welding.

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