JP3533680B2 - Panel joint structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure between panels, and more particularly, to a first surface portion and a second surface portion which are bent substantially orthogonally.
The present invention relates to a structure in which both panels are arc-welded at a bent portion of the first panel in a state where the second panel is in contact with one surface of the first panel having the surface. 2. Description of the Related Art In an automobile, as shown in FIG. 6, a suspension housing upper panel having a first surface portion B1 and a second surface portion B2 bent substantially orthogonally inside a quarter panel A. B to both panels A and B
Are spot-welded, and the wheel house inner panel is welded to the quarter panel A and the suspension housing upper panel B to form a rear wheel house. In such a case, the above-mentioned suspension housing upper panel B may be welded to the quarter panel A in a state where the quarter panel A is temporarily assembled with the rear fender panel C and the rear suspension reinforcement D. In this case, spot welding between the quarter panel A and the suspension housing upper panel B cannot be performed.
By arc welding as disclosed in No. 9
In FIG. 6, the bent portions of the suspension housing upper panel B indicated by arrow X are welded to join the two panels A and B. [0004] However, in the case of the above-described joining by arc welding, the quarter panel A by welding is used.
In addition, there is a risk that this may cause poor welding, and that the welding torch must be correctly set in a narrow contact portion and welding is performed, resulting in poor workability. Accordingly, an object of the present invention is to provide a panel joining structure capable of preventing thermal deformation of the panel when joining the panels by arc welding and improving welding workability. [0006] Means for Solving the Problems That is, the invention according to claim 1 of the present invention, the first panel having a first face and a second face which is bent substantially perpendicularly, approximately Make a flat surface
And a second panel. The first surface of the first panel is
Abutting against the second panel, the second panel surface and the first panel
In a state where the second surface portions are substantially perpendicular to each other,
Set the welding torch in the space and
A bent portion between the first surface portion and the second surface portion and a second portion near the bent portion.
A panel an arc welding panels joined structure, the upper
A portion opposite to the bent portion of the serial second panel, the first
It is characterized in that a step portion is formed to be recessed on the opposite side to the second surface portion side with respect to the first surface portion of the panel . According to the present invention , the first panel of the second panel is opposed to the bent portion of the first panel with the first surface interposed therebetween.
Since the stepped portion is formed on the opposite side to the two surface portion side , the second panel is reinforced by the stepped portion, the strength is increased, the thermal deformation at the time of welding is suppressed, and the second panel is used. The first panel can be favorably supported. Further, by providing the step portion, the space around the bent portion is widened, and the welding torch can be easily set correctly toward the bent portion . An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a side frame assembly 1 on the left side of an automobile. In a rear wheel house portion, a rear fender panel 2, a rear suspension reinforcement 3, and a quarter panel 4 are temporarily assembled as shown in FIG. A suspension housing upper panel 5 shown in FIGS. 2 to 4 is joined to the inside of the quarter panel 4 of the temporary assembly body 1A by arc welding. In this case, the above-mentioned suspension housing upper panel 5 is a panel having a downward opening shape having a horizontal piece 5A and a hanging piece 5B that hangs down substantially at right angles around four sides of the horizontal piece 5A. One surface of the hanging piece portion 5B is brought into contact with the quarter panel 4, and the bent portion of the suspension housing upper 5 at this contact portion is subjected to arc welding to join the panels 4 and 5. Then, the suspension housing upper panel 5
The wheel house inner panel 6 and the quarter panel 4 and the wheel house inner panel 6 and the suspension housing upper panel 5 are welded with the wheel house inner panel 6 inserted from below into the rear wheel house, respectively. It is made to be formed. On the other hand, in the quarter panel 4 described above, a recessed portion 7 is provided immediately above a portion where the hanging portion 5B of the suspension housing upper panel 5 is abutted. A step 8 is formed at substantially the same height as the section 5A and extends in the opposite direction to the horizontal piece 5A with the hanging piece 5B interposed therebetween. In this step, the quarter panel 4 and the suspension housing upper panel 5 are formed. Are joined by the aforementioned arc welding. According to such a joint structure, since the stepped portion 8 reinforces a portion to be welded in the quarter panel 4 and increases the strength, thermal deformation during arc welding is suppressed, and thus poor welding is performed. Does not occur, and the suspension housing upper panel 5 is well supported. Further, since a relatively large space can be secured above the portion to be welded by the formation of the step portion 8, the core wire 10 of the welding torch 9 can be easily and correctly directed to the contact portion. It can be set and welding workability is improved. In the above-mentioned embodiment, an example is shown in which panels to be welded from the upper side have to be welded because the portion to be welded comes up. However, the present invention is not limited to this, and FIG. Needless to say, the present invention can also be applied to a panel abutting structure such as a case where the panel has a bent structure or a structure which is turned over. As apparent from the above description, the present invention
According to Ming, the bent portion of the first panel of the second panel is
In the opposing portion, a step is formed which is recessed on the side opposite to the second surface side with the first surface being interposed therebetween, so that the second panel is reinforced by the step and the strength is increased. The thermal deformation of the first panel is suppressed so that poor welding does not occur, and the first panel can be favorably supported by the second panel. Further, by providing the step portion, the space around the bent portion is widened, and the welding torch can be easily set correctly toward the bent portion , thereby improving the workability of welding. [0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view of a side panel assembly according to an embodiment of the present invention. FIG. 2 is an enlarged view cut along a line PP in FIG. 1; FIG. 3 is an enlarged view of a main part of FIG. 2; FIG. 4 is a diagram showing a shape of the quarter panel on the inside of the vehicle. FIG. 5 is a diagram showing a mounting relationship between a rear fender panel and a rear suspension reinforcement with a quarter panel removed. FIG. 6 is an explanatory diagram of a conventional example. [Description of Signs] 2 Rear fender panel 4 Quarter panel 5 Suspension housing upper panel 5A Horizontal piece 5B Hanging piece 7 Recessed part 8 Step

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int. Cl. ⁷ , DB name) B23K 9/00 501 B23K 9/235 B60G 7/00 B62D 24/00 B62D 25/08

Claims (1)

(57) [Claims 1] A first surface portion and a second surface portion bent substantially orthogonally.
A first panel having a surface portion, and a second panel having a substantially flat surface.
A first panel of the first panel with a second panel.
A second panel surface and a second panel surface of the first panel.
With the parts almost orthogonal, the space between these two orthogonal surfaces
Set the welding torch on the first panel and the first surface of the first panel
Bent portion between the portion and the second surface portion and a second panel near the bent portion
Preparative an arc welding panels joined structure, the second
The first panel is provided at a portion of the panel facing the bent portion.
A panel joining structure, wherein a stepped portion is formed to be recessed on the side opposite to the second surface side with respect to the first surface .