JP2014019215A - Aluminum alloy door frame, manufacturing method thereof, aluminum welding material, and manufacturing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door frame structure capable of easily securing welding quality in an aluminum alloy door frame formed by welding and joining three members, a method for manufacturing the door frame, and aluminum welding material, and its manufacturing method.SOLUTION: An aluminum alloy door frame is constructed such that a glass run channel and a weather strip channel are positioned in the front and rear surfaces of a sash body, one of the glass run channel and the weather strip channel is joined to the sash body by spot welding, and the other of the glass run channel and the weather strip channel is joined to the sash body by spot welding different from the spot welding.

Description

  The present invention relates to a door frame made of an aluminum alloy and a manufacturing method thereof, and an aluminum welding material and a manufacturing method thereof.

  Attempts have been made to reduce the weight by constructing the door frame from an aluminum alloy. Iron-based material door frames can have a so-called one-stroke cross-sectional shape by roll forming, but aluminum alloys employ a structure that welds and joins multiple members formed by extrusion molding, press molding, etc. ing.

JP-A-6-320955

  Welding of long aluminum alloys is generally performed by spot welding at intervals in the length direction. Although the two-layer welding does not have a special technical problem, an aluminum alloy door frame is usually composed of three members (or more). However, spot welding with three layers is difficult to set welding conditions (current value, pressure, etc.), and poor welding is likely to occur.

  Accordingly, an object of the present invention is to obtain a door frame structure and a door frame manufacturing method that do not cause poor welding in an aluminum alloy door frame formed by welding and joining three members. Further, the present invention is broader, and in an aluminum alloy member in which the first, second, and third aluminum members are welded and joined to each other at an overlapping portion, an aluminum alloy member that easily ensures welding quality, a manufacturing method thereof, and aluminum welding It aims at obtaining material and its manufacturing method.

  The present invention comprises a sash body, a glass run channel, and a weatherstrip channel, all made of an aluminum alloy material, and an aluminum alloy door frame constructed by welding them together. The glass run channel and the weather strip channel are located, and a through hole is formed in one of the glass run channel and the weather strip channel, and the through of the glass run channel and the weather strip channel is formed. The channel having a hole and the sash body are joined by spot welding at a portion other than the through hole, and the channel having no through hole and the sash body of the glass run channel and the weatherstrip channel are: Another through hole It is characterized in that it is joined by a pot welding.

  According to the aspect of the manufacturing method of the present invention, the sash body, the glass run channel, and the weatherstrip channel are all made of an aluminum alloy material, and an aluminum alloy door frame constituted by welding them together. In the manufacturing method, a step of forming a through hole in one of the glass run channel and the weather strip channel, a step of positioning the glass run channel and the weather strip channel on the front and back of the sash body, and the through hole A step of joining the channel not formed and the sash body by spot welding, and a step of welding the channel formed the through hole and the sash body at the through hole portion. .

  Another aspect of the present invention is an aluminum welding material having a first aluminum member and second and third aluminum members having welded plate portions stacked on the front and back of the welded plate portion of the first aluminum member. One of the second and third aluminum members is formed with a through hole, one of which is a through-hole aluminum material and the other is a non-through-hole aluminum material. The through hole aluminum material is spot welded at a portion other than the through hole, and the first aluminum member and the non-through hole aluminum material are spot welded at the through hole portion.

  According to the aspect of the manufacturing method, the present invention includes a first aluminum member, and second and third aluminum members having welded plate portions that are superimposed on the front and back surfaces of the welded plate portion of the first aluminum member. In the method for manufacturing an aluminum welding material, a step of forming a through hole for spot welding in one of the second aluminum member and the third aluminum member, the first aluminum member, and the through hole are formed. Spot welding with the second aluminum member or the third aluminum member that is not present, the first aluminum member, and the third aluminum member or the second aluminum member in which the through hole is formed. And welding with.

  According to the present invention, the sash body, the glass run channel, and the weather strip channel made of an aluminum alloy material can be reliably spot-welded by positioning the glass run channel and the weather strip channel on the front and back of the sash body.

It is the side view seen from the car inside which shows one embodiment of the aluminum door frame by the present invention. It is a perspective view of the upright pillar sash part of the aluminum door frame of FIG. 2A is a cross-sectional view before run channel welding, taken along line IIIa-IIIa in FIG. 2, FIG. 2B is a cross-sectional view after run channel welding, taken along line IIIb-IIIb in FIG. 2, and FIG. FIG. 3 is a cross-sectional view taken along line IIIa-IIIa in FIG. 2 after the channel is heme-bonded to the center piece. It is the side view seen from the vehicle inside which shows one embodiment which applied the aluminum door frame by the present invention to the rear side door.

  FIG. 1 shows a side door 10 for the front seat of an automobile. The side door 10 includes a door panel 12 having a schematic shape indicated by a two-dot chain line, and a door frame 14 formed in a frame shape on the upper portion of the door panel 12, and includes an upper edge portion of the door panel 12 and an inner edge portion of the door frame 14. The door glass moves up and down in the window opening 16 surrounded by. A glass run made of an elastic material is disposed on the inner peripheral side of the door frame 14 facing the window opening 16, and the edge of the door glass is held by the glass run. The door frame 14 includes an upper sash 18 that forms an upper edge portion of the door, and an upright column sash 20 that extends upward from the rear portion of the door panel 12, and a rear end portion of the upper sash 18 and an upper end portion of the upright column sash 20. Are joined at the door corner. The door panel 12 is configured by combining an outer panel on the outside of the vehicle and an inner panel on the inside of the vehicle. The lower front portion of the upper sash 18 is fixed to the inner panel via a mirror bracket 31, and the lower portion of the upright pillar sash 20 is interposed via a lock bracket 32. Fixed to the inner panel. A beltline reinforcement 33 extending in the vehicle front-rear direction is fixed to the mirror bracket 31 and the lock bracket 32. When the side door 10 is closed, the upper sash 18 is located along the door opening of the roof panel of the vehicle body (not shown), and the upright pillar sash 20 is located along the center pillar of the vehicle body. A weather strip made of an elastic material is disposed on the outer peripheral side of the upper sash 18 and the upright pillar sash 20, and when the side door 10 is closed, the weather strip is elastically deformed, so that the space between the side door 10 and the vehicle body is liquid-tight. Close up.

  This embodiment is applied to the upright pillar sash 20 of the side door 10 described above. As shown in FIGS. 2 and 3, the upright pillar sash 20 is composed of a center piece 21, a glass run channel 22, and a weather strip channel 23 that constitute the outline of a door sash made of an aluminum alloy. In FIG. 2, the glass run channel 22 does not appear.

  The center piece 21 is formed by press-molding a plate made of an aluminum alloy. The center piece 21 is formed on the vehicle inner side from the first blade plate portion 21a located on the vehicle outer side and one end portion of the first blade plate portion 21a on the vehicle front side. The connecting plate portion 21b that extends, the bag portion forming plate portion 21c in which the vehicle inner end portion of the connecting plate portion 21b is folded back to the vehicle exterior front, and the hem outer portion in which the tip portion of the bag portion forming plate portion 21c is folded back in the vehicle interior And a plate portion 21d. In this embodiment, the protruding amount of the connection plate portion 21b toward the vehicle interior increases from above to below, and the position of the bag portion forming plate portion 21c also changes, but in FIG. 3, the bag portion forming plate portion The position of 21c is drawn constant. More specifically, the connecting plate portion 21b includes a welding plate portion 21b1 on the vehicle outer side and a bag-shaped portion extension portion 21b2 on the vehicle inner side.

  The glass run channel 22 is a uniform cross-section member formed by extrusion molding of an aluminum alloy, and a superposed flat plate portion (weld plate portion) 22a that is superimposed in front of the weld plate portion 21b1 of the center piece 21 and a vehicle of the superposed flat plate portion 22a. It has the 2nd slat plate part 22b which bent the outer edge part ahead, and the deformed bending part 22c which bent the edge part of the vehicle inside forward. A retaining edge 22d is formed on the surface of the overlapping flat plate portion 22a on the vehicle inner side, and a retaining step portion 22e is formed on the outer surface of the deformed bent portion 22c. The retaining edge 22d and the retaining step portion 22e Glass run is retained. The distal end portion of the odd-shaped bent portion 22 c constitutes a hem inner plate portion 22 f that is hem-coupled into the hem outer plate portion 21 d of the center piece 21.

  The weather strip channel 23 is a uniform cross-section member obtained by extrusion molding, roll molding, or press molding of an aluminum alloy, and a superposed flat plate portion 23a that is overlapped behind the welded plate portion 21b1 of the center piece 21, and the superposed flat plate portion. It has a C-shaped channel shape having folding edges 23b and 23c which are folded inward at both ends in the vehicle width direction of 23a. The weather strip channel 23 is provided with through holes (welding holes, welding gun insertion openings) 23d at intervals in the longitudinal direction. A weather strip is inserted and supported by the C-shaped channel material.

  The welding plate portion 21b1 of the center piece 21, the overlapping flat plate portion 22a of the glass run channel 22 and the overlapping flat plate portion 23a of the weather strip channel 23 are welded plate portions to be welded to each other, on the front and back of the welding plate portion 21b1. The overlapping flat plate portions 22a and 23a are in a relationship of being overlapped.

  The center piece 21, the glass run channel 22 and the weather strip channel 23 are combined in the following process. First, as shown in FIG. 3A, the overlapping flat plate portion 23 a of the weather strip channel 23 is overlapped on the vehicle outer side behind the welding plate portion 21 b 1 of the center piece 21. The welding plate portion 21b1 and the overlapping flat plate portion 23a are formed with a positioning hole to be inserted into a common positioning pin, and the standing column shown in FIG. 2 and FIG. At the spot welding position S1 set at intervals in the longitudinal direction of the sash 20, the connection plate portion 21b and the overlapping flat plate portion 23a are spot welded. Since this spot welding is a two-piece welding, there is no problem in welding technology.

  Next, the overlapping flat plate portion 22a of the glass run channel 22 is overlapped on the vehicle exterior side (opposite to the weather strip channel 23) of the center plate 21 in front of the weld plate portion 21b1. Similarly, a positioning hole to be inserted into a common positioning pin is formed in the welding plate portion 21b1 and the overlapping flat plate portion 22a (and the overlapping flat plate portion 23a). In this positioning state by the positioning pin and the positioning hole, this time Then, a welding gun is inserted through the through hole 23d of the weather strip channel 23, and the welded plate portion 21b1 and the overlapping flat plate portion 22a are spot-welded at the spot welding position S2 shown in FIGS. 2 and 3B. At this time, as shown in FIG. 3B, the hem inner plate portion 22f of the glass run channel 22 is positioned inside the hem outer plate portion 21d of the center piece 21.

  Next, as shown in FIG. 3C, the hem outer plate portion 21d of the center piece 21 is hem-processed, and the hem inner plate portion 22f is inserted into the hem outer plate portion 21d. The connecting operation of the channel 22 and the weather strip channel 23 is completed. By connecting the hem inner plate portion 22f with the hem outer plate portion 21d hem, a bag-like portion is formed on the vehicle interior side of the vertical column sash 20 (center piece 21, glass run channel 22) by the center piece 21 and the glass run channel 22. 212a is formed. As described above, the glass run channel 22 supports the glass run, and the weather strip channel 23 supports the weather strip. A garnish 24 is bonded and fixed to the outer surface of the center piece 21 on the rear side of the first blade plate portion 21a and the outer surface of the overlapping flat plate portion 22a of the glass run channel 22 (second blade plate portion 22b). (FIG. 2C).

  In the above embodiment, the weather strip channel 23 has the through hole 23d, but a through hole (a welding hole, a welding gun insertion opening) corresponding to the glass run channel 22 may be formed.

  In the above embodiment, the present invention is applied to the upright pillar sash 20 of the side door 10 for the front seat. However, the present invention relates to the upright pillar sash 20r and the upper sash 18r of the upper side sash 18 or the rear side door 10r ( (See FIG. 4). Furthermore, it can be applied to welding of three aluminum alloy materials more widely.

10 Side door (front side door)
10r Rear side door 12 Door panel 14 Door frame 16 Window opening 18 18r Upper sash 20 20r Standing column sash 21 Center piece 21a First blade part 21b Connection plate part 21b1 Welding plate part 21b2 Bag-like part extension part 21c Bag part forming plate part 21d Hem outer plate 22 Glass run channel 22a Superposed flat plate (welded plate)
22b Second blade portion 22c Deformed bent portion 22d Stopping edge 22e Stopping step portion 22f Hem inner plate portion 23 Weather strip channel 23a Superposed flat plate portion (weld plate portion)
23b 23c Folding edge 23d Through hole 24 Garnish 31 Mirror bracket 32 Lock bracket 33 Beltline reinforcement

Claims (4)

In a sash body, a glass run channel, and a weatherstrip channel, all made of an aluminum alloy material, and an aluminum alloy door frame constructed by welding these together,
The glass run channel and weatherstrip channel are located on the front and back of the sash body,
A through hole is formed in one of the glass run channel and the weatherstrip channel,
Of the glass run channel and weatherstrip channel, the channel having the through hole and the sash body are joined by spot welding at a portion other than the through hole,
Of the glass run channel and the weatherstrip channel, the channel not having the through hole and the sash body are joined by another spot welding at the through hole portion. flame. In the manufacturing method of the door frame made of aluminum alloy, which is constructed by sash body, glass run channel, and weatherstrip channel, all made of aluminum alloy material and welded together,
Forming a through hole in one of the glass run channel and the weatherstrip channel;
Positioning the glass run channel and weatherstrip channel on the front and back of the sash body;
Joining the channel not forming the through hole and the sash body by spot welding;
Welding the channel formed with the through hole and the sash body at the through hole portion;
A method for manufacturing an aluminum alloy door frame, comprising: In the aluminum welding material having the first aluminum member, and the second and third aluminum members having the welded plate portion overlapped on the front and back of the welded plate portion of the first aluminum member,
A through-hole is formed in one of the second and third aluminum members, one of which is a through-hole aluminum material and the other is a non-through-hole aluminum material,
The first aluminum material and the through hole aluminum material are spot welded at a portion other than the through hole,
An aluminum welding material, wherein the first aluminum member and the non-through-hole aluminum material are spot-welded at the through-hole portion. In the manufacturing method of the aluminum welding material which has the 1st aluminum member and the 2nd and 3rd aluminum member which has the welding plate part piled up on the front and back of the welding plate part of this 1st aluminum member,
Forming a through hole for spot welding in one of the second aluminum member and the third aluminum member;
Spot welding the first aluminum member and the second or third aluminum member not forming the through hole;
Welding the first aluminum member and the third aluminum member or the second aluminum member in which the through hole is formed at the through hole portion;
The manufacturing method of the aluminum welding material characterized by having.

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