JP5912420B2 - Processing method for vertical frame of vehicle door - Google Patents

Description

  The present invention processes a vertical column frame of a vehicle door that is roll-formed so that the design portion forms a convex shape in the width direction and is cut so that the width of the design portion changes in the longitudinal direction, and is adjacent The present invention relates to a method for eliminating a step with a vertical column frame and a gap with a belt molding.

In a four-door vehicle, a rear vertical column frame (center pillar or B pillar) of a front door and a front vertical column frame (center pillar or B pillar) of a rear door are disclosed in, for example, Japanese Patent Application Laid-Open No. 2010-264771. As shown in FIG. 1 of (Patent Document 1), they are provided adjacent to each other.
In addition, regardless of whether the vehicle is a four-door vehicle or a two-door vehicle, the lower part of the vertical column frame is provided along the upper edge of the belt molding.

JP 2010-264771 A

In the type of car that is installed adjacent to the rear vertical column frame of the front door and the front vertical column frame of the rear door, the width of the adjacent vertical column is often different. Then, a level | step difference arises in the said adjacent part. The reason is that the design portion of the vertical column frame is roll-formed so as to form a convex shape in the width direction, and is further cut so that the width of the design portion changes in the longitudinal direction. That is, if the design parts of adjacent vertical column frames that are roll-formed to have the same degree of curvature are cut to different widths, the amount of sinking into the vehicle interior will be different at the different width parts. Will occur. When the step is generated in this way, there is a problem that the appearance is deteriorated.
In a type of car in which the lower part of the vertical column frame is provided along the upper edge of the belt molding, the lower part of the design part of the vertical column frame is roll-formed to form a convex shape. As a result, there is a problem that it looks bad.

The present invention relates to a vehicle of a type in which a rear vertical column frame of a front door and a front vertical column frame of a rear door are provided adjacent to each other when both doors are closed. The object is to prevent a step from occurring at the edge of the frame.
Another object of the present invention is to prevent a gap from being generated in the edge portion of the vehicle in which the lower portion of the vertical column frame is provided along the upper edge portion of the belt molding. .

The present invention is configured as the following [1] to [5].
In this section, “Means for Solving the Problems” and in the next section, “Effects of the Invention”, the reference numerals are given for easy understanding, and the present invention is not limited to the configuration of the reference numerals. Absent.

[1] Configuration 1
In the processing method of the vertical column frame 12 of a vehicle door provided with the design part 121, the bag part 124, and the connection part 123 which connects the design part 121 and the bag part 124,
A step in which the design portion 121 roll-forms into a convex shape having a first curvature in the vehicle longitudinal direction;
Cutting the width of the design portion 121 in the longitudinal direction of the vehicle to change in the longitudinal direction;
An application step for processing the design portion 121 below the corner portion so as to reduce the amount of sinking into the vehicle interior by applying a force F to the vehicle door edge side portion from the connection portion 123;
The processing method of the vertical column frame 12 of a vehicle door characterized by having.

[2] Configuration 2
In configuration 1,
In the applying step, a force is applied so that the curvature of the design portion 121 below the corner portion is smaller than the first curvature.
A processing method for a vertical frame of a vehicle door, characterized in that:

[3] Configuration 3
In Configuration 1 or Configuration 2,
The vertical column frame is at least one of the rear vertical column frame 12 of the front door and the front vertical column frame 52 of the rear door adjacent to the rear vertical column frame 12 of the front door,
In the applying step, a step d is provided between the design portion 121/521 of one vertical column frame 12/52 and the design portion 521/121 of the other vertical column frame 52/12 adjacent to the one vertical column frame 12/52. Apply force to eliminate
A processing method for a vertical frame of a vehicle door, characterized in that:

[4] Configuration 4
In configuration 3,
The width at the corner of the design part 121 of the rear vertical column frame 12 of the front door is different from the width at the corner of the design part 521 of the front vertical column frame 52 of the rear door,
In the applying step, a force is applied so as to gradually reduce the step d from at least the corner portion downward.
A processing method for a vertical frame of a vehicle door, characterized in that:

[5] Configuration 5
In Configuration 1 or Configuration 2,
The vertical column frame 12 is set so that the upper edge portion 181b of the belt molding 181 is along the lower portion 121b of the design portion 121 of the vertical column frame 12,
In the applying step, a force is applied so that the gap d2 between the lower portion 121b of the vertical column frame 12 and the upper edge portion 181b of the belt molding 181 is eliminated.
A processing method for a vertical frame of a vehicle door, characterized in that:

Configuration 1 is a method of processing a vertical column frame 12 of a vehicle door that includes a design portion 121, a bag portion 124, and a connection portion 123 that connects the design portion 121 and the bag portion 124, and the design portion 121 is a vehicle. For the step of roll forming into a convex shape having a first curvature in the front-rear direction, the step of cutting the design portion 121 so that the width in the vehicle front-rear direction changes in the longitudinal direction, and the design portion 121 below the corner portion And a step of applying the force F to a portion closer to the vehicle door edge side than the connecting portion 123 to reduce the amount of sinking into the vehicle interior. Since it is 12 processing methods, the site | part by the side of a vehicle door can be deform | transformed from the connection part under the design part corner part of a vertical column frame.
In the configuration 2, in the configuration 1, in the application step, a force is applied so that the curvature of the design portion 121 below the corner portion is smaller than the first curvature. Therefore, the part on the vehicle door edge side of the connecting portion below the design corner portion of the vertical column frame can be deformed to a curvature smaller than the first curvature.
In the configuration 3, in the configuration 1 or the configuration 2, the vertical column frame is at least one of the rear vertical column frame 12 of the front door and the front vertical column frame 52 of the rear door adjacent to the rear vertical column frame 12 of the front door. In the applying step, a step is formed between the design portion 121/521 of one vertical column frame 12/52 and the design portion 521/121 of the other vertical column frame 52/12 adjacent to the one vertical column frame 12/52. Since the processing method of the vertical column frame of the vehicle door is characterized in that a force is applied so as to eliminate d, the step between the rear vertical column frame 12 of the front door and the front vertical column frame 52 of the rear door is It can be eliminated.
In Configuration 3, the width at the corner portion of the design portion 121 of the rear vertical column frame 12 of the front door and the width at the corner portion of the design portion 521 of the front vertical column frame 52 of the rear door in Configuration 3 are as follows. Unlikely, in the applying step, the vertical door frame processing method of the vehicle door is characterized in that a force is applied so as to gradually reduce the step d at least from the corner portion downward. Even when the width at the corner of the design part 121 of the column frame 12 and the width at the corner of the design part 521 of the front vertical column frame 52 of the rear door are different, the rear vertical column frame 12 of the front door and the rear door The step with the front vertical column frame 52 can be reduced so as not to be noticeable.
Configuration 5 is configuration 1 or configuration 2 in which the vertical column frame 12 is set so that the upper edge portion 181b of the belt molding 181 extends along the lower portion 121b of the design portion 121 of the vertical column frame 12. The vertical column frame for a vehicle door is characterized in that a force is applied so that the gap d2 between the lower part 121b of the vertical column frame 12 and the upper edge 181b of the belt molding 181 is eliminated. The gap d2 between the lower portion 121b of the column frame 12 and the upper edge portion 181b of the belt molding 181 can be eliminated.

FIG. 6 is an end view for explaining a blade raising process of a rear vertical column frame (center pillar or B pillar) 12 of the front door. (A) shows the case where the blade raising process is performed in the state of the front side member 12a alone obtained by roll forming, and (b) shows the blade raising process after assembling the back side member 12b obtained by press forming on the front side member 12a. Show the case. The front view which shows a mode that the rear vertical column frame 12 of a front door and the front vertical column frame (center pillar or B pillar) 52 of a rear door adjoin when closing a front door and a rear door. (A) shows the example in which the width of the design part of a corner part differs in the rear vertical column frame 12 and the front vertical column frame 52, (b) shows the design part of the corner part of the rear vertical column frame 12 and the front vertical column frame 52. The example which set the width | variety of the same width | variety is shown. In (a), a gradual change section VS in which the blade raising position k is gradually increased downward to gradually reduce the curvature of the design portion, and a constant section CS in which the blade raising position k is kept constant to make the curvature small and constant. Are also shown. Explanatory drawing of the blade raising process in the AA line end surface of Fig.2 (a). The BB line end view of FIG.2 (b). The clearance between the lower part 21b of the rear vertical column frame 12 of the front door and the upper edge part 181b of the belt molding 181 is eliminated, and the lower part 521b of the front vertical column frame 52 of the rear door and the upper edge part 581b of the belt molding 581 Explanatory drawing of the blade raising process which eliminates the clearance gap. (A) shows a gap between the lower portion 121b of the rear vertical column frame 12 and the upper edge portion 181b of the belt molding 181, and a gap between the lower portion 21b of the front vertical column frame 52 and the upper edge portion 581b of the belt molding 581. , Respectively. (B) is a case where the blade raising position k is constant so that the curvature by the blade raising processing is small and constant when the widths of the design portions at the corners of the rear vertical column frame 12 and the front vertical column frame 52 are set to be the same. An example is shown in which a constant section CS that is maintained at a constant value and a gradual change section VS that gradually increases the blade raising position k to lower the curvature gradually are shown. (C) In the case where the widths of the design portions at the corners of the rear vertical column frame 12 and the front vertical column frame 52 are set to be the same, the blade raising position k is gradually increased downward to gradually reduce the curvature. The case where all the sections are set to the gradual change section VS is shown.

Embodiments of the present invention will be described below with reference to the drawings.
(1) Blade raising process FIG.1 (b) is an end elevation which shows the cutting | disconnection end surface in the AA line of Fig.2 (a) about the vertical column frame (center pillar or B pillar) 12 of a front door. is there. As illustrated, the vertical column frame 12 of the front door is formed by assembling a back side member 12b obtained by press molding to a front side member 12a obtained by roll molding. The back side member 12b may be obtained by roll forming.

The front side member 12 a includes a design part 121, a folded part 122, a connection part 123, and a bag part 124. The surface of the design portion 121 (the lower surface in FIG. 1B) is the design surface 1210. That is, it is a surface that is exposed to the outside world and touched by human eyes in a state where it is assembled in an automobile. The folded portion 122 is a portion formed by folding the inner edge (the side on which the window glass G should be located) of the design portion 121 back to the back side (the vehicle inner side; the upper side in the figure). The connection part 123 is a part that connects the design part 121 and the bag part 124. This connecting portion 123 is connected to a standing portion 1230 that extends from the tip of the folded portion 122 (the right end in FIG. 1B) toward the back side (the vehicle inner side; the upper side in the drawing). The middle plate portion 1249 and the outer plate portion 12b4 are overlapped and integrally joined. The bag portion 124 bends a portion connected to the tip (upper end in FIG. 1B) side of the standing portion 1230 to the inner side (the side on which the window glass G should be located), and further to the back side (the vehicle inner side; the upper side in the figure) ), And is a portion that has a cylindrical shape. The further front end side of the bag portion 124 is overlapped with the standing portion 1230 and integrally joined as the above-described middle plate portion 1249.
The front side member 12a is formed by roll forming.

The back side member 12b is assembled | attached to the back side (vehicle inside; upper side in a figure) of the front side member 12a, as shown in FIG.1 (b). That is, the outer edge 1219 of the outer side of the design portion 121 (the side opposite to the side on which the window glass G should be located) is folded back so as to sandwich the outer edge 12b1 of the back side member 12b. The mounting portion is assembled to the front side member 12a by overlapping (joining) (spot welding) the standing portion 1230 and the middle plate portion 1249 of the front side member 12a as the above-described outer plate portion 12b4. A space secured by the step portion 12b2 is provided between the center portion 12b3 configured from the outer edge portion 12b1 of the back side member 12b through the step portion 12b2 and the back surface of the design portion 121 of the front side member 12a. . Further, a projecting portion 12b30 is formed at a portion of the central portion 12b3 near the connecting portion. Further, a bent curled portion 12b5 is extended at the distal end side of the outer plate portion 12b4, and a concave groove is formed by the curled portion 12b5, the outer plate portion 12b4 and the protruding portion 12b30, and the weather strip is locked. Weather strip (sealing part) receiving portion W.
The back side member 12b is formed by roll forming or pressing.

  The rear vertical column frame 12 of the front door is a member having such a structure, and the front vertical column frame of the rear door adjacent to the front door vertical column frame 12 in a state where the front door and the rear door are closed. Similarly, 52 is a member formed by assembling a back side member (not shown) to the front side member 52a (see FIG. 3).

  The rear vertical column frame 12 of the front door having such a structure is subjected to blade raising processing as shown in FIG. That is, while holding the holder 91 against the back wall portion 1245 of the bag portion 124 and pressing it, the rear vertical column frame 12 is fixed by pressing the holders 91 and 92 on both sides of the connection portion 123, and in this state, A force F that urges the design portion 121 outside the connection portion 12 toward the vehicle outer side (downward in FIG. 1B) is applied. Thus, the shape shown by the broken line in FIGS. 1A and 1B before application is deformed to the shape shown by the solid line in FIG. That is, the curvature of the part of the design portion 121 is smaller than the curvature immediately after roll forming (= first curvature). In other words, the radius of curvature increases. For this reason, when the blade raising process is not performed, one edge portion 121a of the design portion 121 of the rear vertical column frame 12 of the front door and one edge portion 521a of the design portion 521 of the front vertical column frame 52 of the rear door The level difference d (see FIG. 3) occurring between them is eliminated, and deterioration of appearance is prevented. Further, there is an effect that the appearance of the rear vertical column frame 12 is improved by reducing the sinking of the front end of the design portion 121 into the vehicle interior.

Such blade raising processing may be performed after the back side member 12b is assembled to the front side member 12a as shown in FIG. 1 (b), and the front side member before the back side member is assembled as shown in FIG. 1 (a). You may give to 12a simple substance.
In addition, the blade raising process may be performed only on one adjacent side (“design portion 121” in the above example), but if necessary, both (in the above example, “design portion 121” and “design portion 121”). Each may be applied to the design portion 521 ").

(2) The width of the design portion of the corner portion is set to be the same. As described above, the rear vertical column frame 12 of the front door is subjected to the blade raising process, and the design portion 521 of the front vertical column frame 52 of the rear door is formed. The step between the edge 521a is eliminated, but depending on the part of the rear vertical column frame 12, there is a part where the blade raising process is not performed because another problem occurs when the blade raising process is performed. That is, the blade raising process is not performed on the portion (corner portion) above the position indicated by the line BB in FIG. The reason is that when the horizontal column frame 11 and the rear vertical column frame 12 of the front door are welded by a line WL to form a corner portion of the door frame, an imaginary line connecting both edges of the design surface and a connection portion are formed. Since the angle is adjusted and welding is performed so that no groove is formed in the joint portion of the design surface, there is to prevent this from being adversely affected. Here, the line B-B refers to the intersection b1 between the end of the front door vertical column frame on the design portion glass side and the end of the horizontal column frame on the design portion glass side, and the design portion of the rear door vertical column frame. It is a line which connects the edge part on the glass side and the intersection b2 of the edge part by the side of the design part glass of a horizontal column frame.

  However, in the case where the blade raising process is not performed on the portion (corner portion) above the line BB in FIG. 2B, the edge of the front vertical column frame 52 of the adjacent rear door is left at the corner portion as it is. If the design part width is different from the part 521a, a step is generated, and the above-described problem occurs.

  As a countermeasure, in the example of FIG. 2B, the design portion of the corner portion is set to the same width in the rear vertical column frame 12 of the front door and the front vertical column frame 52 of the rear door. That is, the width of the design portion at the BB line position in FIG. 2B is set to be equal between the rear vertical column frame 12 of the front door and the front vertical column frame 52 of the rear door. As a result, as shown in FIG. 4, there is no step between the edge portion 121a of the design portion 121 and the edge portion 521a of the design portion 521 at the position, and a problem at the position is prevented. The

(3) Blade raising processing by gradual change The blade raising processing is applied to the portion below the corner portion (the portion below the line BB in FIG. 2B). In that case, the blade raising position k is such that the curvature decreases as the width of the design portion 121 increases to a certain range downward, in other words, the radius of curvature increases as the width of the design portion 121 increases. If the blade raising process is performed by gradually increasing, the welded portion at the corner is not adversely affected. Further, as shown in FIG. 2A, even when the width of the design portion of the corner portion cannot be set to the same width between the rear vertical column frame 12 of the front door and the front vertical column frame 52 of the rear door, The level difference between the edge portions 121a to 521a in the vicinity of the corner portion can be suppressed to a negligible level and can be made inconspicuous. Here, the blade raising position k is a distance between a virtual extension line on the outer surface of the glass and a door edge side end portion on the outer surface of the design portion. A section in which the blade raising position k is gradually increased is shown as section VS in FIG. Further, the blade raising process for gradually increasing (or gradually decreasing) the blade raising position k is hereinafter referred to as “blade raising process by gradual change”.

  In the section below the gradually changing section VS, the blade raising process is performed so as to maintain the same blade raising position k as the blade raising position k at the lower end of the gradually changing section VS. That is, the blade raising process is performed so that the blade raising position k is the same as the blade raising position k at the lower end of the gradual change section VS. This section is shown as section CS in FIG. Thereby, even in the fixed section CS, the step between the edge 121a of the design part 121 of the rear vertical column frame 12 of the front door and the edge 521a of the design part 521 of the front vertical column frame 52 of the rear door can be eliminated. .

  Even when the width of the design portion of the corner portion is set to the same width in the rear vertical column frame 12 of the front door and the front vertical column frame 52 of the rear door as shown in FIG. At this time, the design portion 121 is subjected to a blade raising process. The blade raising position k may be constant in the entire section, and the blade raising process is performed in which the blade raising position k is constant in the lower section by performing “blade raising processing by gradual change” at a portion near the corner. May be performed.

  In addition, when the width of the design portion of the corner portion is set to the same width in the rear vertical column frame 12 of the front door and the front vertical column frame 52 of the rear door (in the case of FIG. 2B), the same Even when the width cannot be set (in the case of FIG. 2A), “blade raising processing by gradual change” may be performed in the entire section below the corner portion.

(4) Clearance with Belt Mall In the above, in order to eliminate the step between the front vertical column frame 52 of the rear door adjacent to the rear vertical column frame 12 of the front door, the rear vertical column frame 12 of the front door As shown in FIG. 5, the blade raising process is performed on the lower part 121b of the design part 121 of the rear vertical column frame 12 of the front door and the belt molding 181 of the front door along the lower part 121b. When the gap d2 between the upper edge portion 181b is eliminated, the lower portion 521b of the design portion 521 of the front vertical column frame 52 of the rear door, and the upper edge portion 581b of the rear door belt molding 581 along the lower portion 521b It is also effective in eliminating the gap between the two.

  As shown in FIG. 5 (b), the blade raising process in this case is a process in which the blade raising position k is constant up to a certain range downward from the corner portion (constant section CS), and below that And a method of performing blade raising by gradually changing the blade raising position k from the bottom to the bottom (gradually changing section VS) and, as shown in FIG. 5C, by gradually changing all sections below the corner portion. There is a processing method for raising a blade.

  In any processing method, the blade raising position k is increased as it approaches the lower part 121b / 521b of the design part 121/521 so that the gap between the upper part 181b / 581b of the belt molding 181/581 is eliminated. I'm taking it. That is, the gap is eliminated by reducing the curvature (= increasing the radius of curvature).

11 Front Door Horizontal Column Frame 12 Front Door Rear Vertical Column Frame 12a Front Side Member 12b Back Side Member 12b1 Outer Edge 12b2 Step 12b3 Center 12b30 Projection 12b4 Outboard 12b5 Curl 121 Design Part 121a One Edge 121b Lower part 1219 Design part outer edge 122 Folding part 123 Connection part 1230 Standing part 124 Bag part 1245 Back wall part 1249 Middle plate part 181 Front door belt molding 181b Upper edge part 51 Rear door horizontal column frame 52 Rear door part Front columnar frame 521 Design part 521a One edge part 581 Rear door belt molding 581b Upper edge part 91, 92, 93 Holder d Step difference d2 Gap F Force BL Boundary WL of whipping process Welding position VS Gradual change section CS Constant section G Glass run receiving part W Weather strip receiving part

Claims (5)

In a processing method of a vertical column frame of a vehicle door provided with a design portion, a bag portion, and a connection portion connecting the design portion and the bag portion,
A step of roll-forming the design part into a convex shape having a first curvature in the vehicle longitudinal direction;
Cutting the width of the design portion in the longitudinal direction of the vehicle to change in the longitudinal direction;
An application step for processing the design part below the corner part so as to reduce the amount of sinking into the vehicle interior by applying a force to the vehicle door edge side part from the connection part,
A method for processing a vertical column frame of a vehicle door, comprising: In claim 1,
In the applying step, a force is applied so that the curvature of the design portion below the corner portion is smaller than the first curvature.
A processing method for a vertical frame of a vehicle door, characterized in that: In claim 1 or claim 2,
The vertical column frame is at least one of a rear vertical column frame of the front door and a front vertical column frame of the rear door adjacent to the rear vertical column frame of the front door,
In the applying step, a force is applied so as to eliminate a step between the design portion of one vertical column frame and the design portion of the other vertical column frame adjacent to the one vertical column frame.
A processing method for a vertical frame of a vehicle door, characterized in that: In claim 3,
The width at the corner of the design part of the rear vertical column frame of the front door is different from the width at the corner of the design part of the front vertical column frame of the rear door,
In the applying step, a force is applied so as to gradually reduce the level difference from at least the corner portion downward.
A processing method for a vertical frame of a vehicle door, characterized in that: In claim 1 or claim 2,
The vertical column frame is set so that the upper edge of the belt molding is along the lower part of the design portion of the vertical column frame,
In the application step, a force is applied so that the gap between the lower part of the vertical column frame and the upper edge of the belt molding is eliminated.
A processing method for a vertical frame of a vehicle door, characterized in that:

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